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<rss version="2.0"><channel><title>News: General News</title><link>https://nsaneforums.com/news/general-news/page/108/?d=2</link><description>News: General News</description><language>en</language><item><title>How you drink alcohol is key to liver disease risk &#x2014; not the quantity</title><link>https://nsaneforums.com/news/general-news/how-you-drink-alcohol-is-key-to-liver-disease-risk-%E2%80%94-not-the-quantity-r20645/</link><description><![CDATA[<p>
	<strong>LONDON —</strong> Binge drinkers are three times more likely to suffer liver damage compared to individuals who consume a daily glass of wine, new research reveals. Scientists in London say the pattern of alcohol consumption is a more accurate predictor of liver disease risk than the total amount consumed.
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<p>
	Moreover, the results show individuals who binge drink and possess certain genetic traits are six times more likely to develop alcohol-related cirrhosis. The team notes this is a groundbreaking report for evaluating how drinking patterns, genetic profiles, and the presence of Type 2 diabetes influence the risk of developing alcohol-related cirrhosis (ARC).
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</p>

<p>
	Study authors have observed that the manner of drinking is more critical than the quantity consumed. This is especially true when genetic factors and Type 2 diabetes coexist in drinkers, offering a more precise method to identify those at heightened risk for liver disease.
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</p>

<p>
	Globally, liver disease ranks as a leading cause of premature death. Cirrhosis, or liver scarring, affects up to three percent of the world’s population.
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</p>

<p>
	Since the onset of the COVID-19 pandemic, alcohol-related deaths have surged by 20 percent, according to the scientists.
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</p>

<p>
	For this study, researchers from University College London (UCL), the Royal Free Hospital, and the Universities of Oxford and Cambridge analyzed data from over 312,000 actively drinking U.K. adults. The team evaluated the impact of drinking patterns, genetic susceptibility, and Type 2 diabetes on the likelihood of developing ARC.
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</p>

<p>
	A baseline hazard ratio (HR) of one was established using data from participants who drank within daily limits, had a low genetic predisposition to ARC, and did not have diabetes. Individuals who engaged in heavy binge drinking, defined as consuming 12 drinks per day (equivalent to four pints of beer or six standard glasses of wine) at least once a week, were three times more likely to develop ARC.
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<p>
	The risk was four times higher for those with a significant genetic predisposition and twice as high for individuals with Type 2 diabetes.
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</p>

<p>
	“Many studies that look into the relationship between liver disease and alcohol focus on the volume of alcohol consumed. We took a different approach by focusing on the pattern of drinking and found that this was a better indicator of liver disease risk than volume alone. The other key finding was that the more risk factors involved, the higher the ‘excess risk’ due to the interaction of these factors,” says Dr. Linda Ng Fat, a first author of the study from UCL Epidemiology &amp; Public Health, in a university release.
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</p>

<p>
	Dr. Ng Fat adds that when heavy binge drinking and a genetic predisposition for liver problems were at play, the risk of developing ARC was up to six times higher than the risk for a baseline drinker.
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</p>

<p>
	“Only one in three people who drink at high levels go on to develop serious liver disease. While genetics plays a part, this research highlights that pattern of drinking is also a key factor. Our results suggest, for example, that it would be more damaging to drink 21 units over a couple of sessions rather than spread evenly over a week. Adding genetic information, which may be widely used in healthcare over the coming years, allows an even more accurate prediction of risk,” explains Dr. Gautam Mehta, a senior author of the study from UCL Division of Medicine and the Royal Free Hospital.
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</p>

<p>
	“As liver disease, particularly alcohol-related fatalities, has seen a significant surge since the onset of the COVID-19 pandemic, it is imperative that we adopt innovative strategies to address this escalating crisis. This study equips us with novel tools that are essential in pinpointing individuals at highest risk, thereby enabling us to direct interventions more effectively towards those who stand to benefit the most,” adds Dr. Steven Bell, a senior author of the study from the University of Cambridge.
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</p>

<p>
	“This research is important because it reveals that it’s not just how much you drink overall but the way that you drink matters. Drinking a lot, quickly, or drinking to get drunk can have serious consequences for your liver health,” concludes Pamela Healy, the chief executive of the British Liver Trust.
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	The findings are published in the journal<span style="color:#2980b9;"><em> Nature Communications.</em></span>
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	<strong><span style="color:#2980b9;"><a href="https://studyfinds.org/how-drink-alcohol-liver-disease/" rel="external nofollow">Source</a></span></strong>
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]]></description><guid isPermaLink="false">20645</guid><pubDate>Fri, 15 Dec 2023 16:42:55 +0000</pubDate></item><item><title>Mindfulness and mental health</title><link>https://nsaneforums.com/news/general-news/mindfulness-and-mental-health-r20639/</link><description><![CDATA[<p>
	Mindfulness meditation is the practice of purposefully being aware of and focusing your attention on the present moment. Mindfulness allows you to be in tune with your experience—right now in this moment—and to explore with curiosity whatever sensations, thoughts and emotions are present without expectations or judgment.
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	During meditation, you focus your attention and eliminate the stream of jumbled thoughts that may be crowding your mind and causing stress. This focus can result in enhanced physical and emotional well-being.
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</p>

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	Many people may think of mindfulness meditation as "sitting on a pillow, being still, with eyes closed." This may work for some, but there are many ways to practice mindfulness meditation.
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	Practicing mindfulness involves using breathing methods, guided imagery, and other strategies to relax the body and mind to help reduce stress.
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	To try focused breathing meditation, sit down, take a deep breath and close your eyes. Focus on your breath as it moves in and out of your body. Sitting and breathing slowly for even just a minute can help.
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	As you start meditating, try these structured mindfulness exercises:
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</p>

<ul>
	<li>
		<strong>Body scan meditation:</strong> Lie on your back with your legs extended and arms at your sides, palms facing up. Focus your attention slowly and deliberately on each part of your body, in order, from toe to head or head to toe. Be aware of any sensations, emotions or thoughts associated with each part of your body.
	</li>
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</p>

<ul>
	<li>
		<strong>Sitting meditation: </strong>Sit comfortably with your back straight, feet flat on the floor and hands in your lap. Breathing through your nose, focus on your breath moving in and out of your body. If physical sensations or thoughts interrupt your meditation, note the experience and then return your focus to your breathing.
	</li>
</ul>

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</p>

<ul>
	<li>
		<strong>Walking meditation:</strong> Find a quiet place 10- to 20-feet long and walk slowly. Focus on the experience of walking, being aware of the sensations of standing and the subtle movements that keep your balance. When you reach the end of your path, turn and continue walking, maintaining awareness of your sensations.
	</li>
</ul>

<p>
	<br />
	Often, mindfulness meditation is recommended as part of a comprehensive treatment for physical and mental health conditions. It's considered a type of mind-body complementary medicine. You can incorporate mindfulness meditation into your busy routine to improve your overall health.
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<p>
	 
</p>

<p>
	There are many benefits of mindfulness meditation engaging the brain. Think of it as a form of brain exercise. Just as physical exercise keeps your body healthy, mindfulness meditation keeps your brain fit. Research has shown that just five to 15 minutes of daily meditation is all you need to begin experiencing benefits.
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</p>

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	After decades of research into the practice, these benefits have been found to include an increase in:
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</p>

<ul>
	<li>
		Cognitive flexibility
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</p>

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	<li>
		Diabetes control
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</ul>

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</p>

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	<li>
		Emotion regulation
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</p>

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	<li>
		Empathy
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</p>

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	<li>
		Focus and attention
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</p>

<ul>
	<li>
		Immune system response
	</li>
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</p>

<ul>
	<li>
		Memory
	</li>
</ul>

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</p>

<ul>
	<li>
		Positive emotions
	</li>
</ul>

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</p>

<ul>
	<li>
		Positive relationships
	</li>
</ul>

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</p>

<ul>
	<li>
		Relaxation
	</li>
</ul>

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</p>

<ul>
	<li>
		Self-compassion
	</li>
</ul>

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</p>

<ul>
	<li>
		Self-esteem
	</li>
</ul>

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</p>

<p>
	The practice also affects many negative physical and mental symptoms, including decreases in:
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</p>

<ul>
	<li>
		Addictive behaviors
	</li>
</ul>

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</p>

<ul>
	<li>
		Anger and hostility
	</li>
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</p>

<ul>
	<li>
		Anxiety
	</li>
</ul>

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</p>

<ul>
	<li>
		Burnout
	</li>
</ul>

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</p>

<ul>
	<li>
		Depression
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</ul>

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</p>

<ul>
	<li>
		Emotional reactivity
	</li>
</ul>

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</p>

<ul>
	<li>
		Insomnia
	</li>
</ul>

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</p>

<ul>
	<li>
		High blood pressure
	</li>
</ul>

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</p>

<ul>
	<li>
		Need for pain medications
	</li>
</ul>

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</p>

<ul>
	<li>
		Physical pain
	</li>
</ul>

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</p>

<ul>
	<li>
		Post-traumatic stress disorder symptoms
	</li>
</ul>

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</p>

<ul>
	<li>
		Stress
	</li>
</ul>

<p>
	<br />
	Mindfulness is a supportive strategy to help manage many health issues. It pairs well with other medical treatments and counseling. It's a simple strategy that doesn't require a prescription or special equipment and can be practiced anywhere.
</p>

<p>
	 
</p>

<p>
	<span style="color:#7f8c8d;">2023 Mayo Clinic News Network. Distributed by Tribune Content Agency, LLC.</span>
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</p>

<p>
	<strong><span style="color:#7f8c8d;"><a href="https://medicalxpress.com/news/2023-12-mindfulness-mental-health.html" rel="external nofollow">Source</a></span></strong>
</p>
]]></description><guid isPermaLink="false">20639</guid><pubDate>Fri, 15 Dec 2023 16:04:03 +0000</pubDate></item><item><title>West Antarctica Glacier's Retreat Unstoppable: Study Says Tipping Point Crossed</title><link>https://nsaneforums.com/news/general-news/west-antarctica-glaciers-retreat-unstoppable-study-says-tipping-point-crossed-r20632/</link><description><![CDATA[<p>
	Pine Island glacier is one of the fastest flowing outlets of ice from the west Antarctic ice sheet, draining an area three-quarters the size of the UK. In recent decades, the glacier has been retreating rapidly and losing ice, contributing more to global sea level rise than any other Antarctic glacier.
</p>

<p>
	The speed of the glacier's retreat and the rate that is has been losing ice has led to concerns about how stable the region is. Model results show that this region of west Antarctica could collapse in the future. If it does, then it could raise global mean sea level by several metres.
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<p>
	 
</p>

<p>
	There have been periods of rapid global sea-level rise in the past (by 1cm–2cm per year). This probably happened because glaciers were losing mass at an accelerated rate. One of the key mechanisms responsible for this is known as "marine ice sheet instability".
</p>

<p>
	 
</p>

<p>
	When glaciers, like those in west Antarctica, experience a small retreat due to some change in the climate, they can continue retreating even if the change is reversed. Essentially, the glacier gets pushed beyond a tipping point, whereby it experiences rapid mass loss until it reaches a new state.
</p>

<p>
	This kind of retreat is irreversible because the change in climate needed for the glacier to recover its original position is much greater than what initially caused it to retreat.
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<p>
	 
</p>

<p>
	This instability mechanism is well understood in theory, and models show it could happen in west Antarctica in the future. But until now there has been no proof that it had happened in the past.
</p>

<p>
	 
</p>

<p>
	In a new study, we found that Pine Island Glacier experienced irreversible mass loss and retreat, starting in the 1940s. Our model suggests that a temporary increase in melting under its floating ice shelf was enough to push the glacier past a tipping point.
</p>

<p>
	 
</p>

<p>
	This phase of accelerated retreat had finished by the 1990s. But, in a separate study where we used the same model, we found that the glacier will cross future tipping points unless global warming is kept within safe limits.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>What happened?</strong></span>
</p>

<p>
	<br />
	Before the 1940s, Pine Island Glacier extended further than it does today. Its grounding line – the point at which glacial ice begins to float in the ocean rather than being in contact with the ground – was situated 40 km further downstream on a shallow ridge on the seabed. This ridge provided a stable position for the glacier, keeping it in place, possibly for at least 5,000 to 10,000 years.
</p>

<p>
	 
</p>

<p>
	Recent observations show that ocean conditions beneath the floating ice shelf change from year to year. Every so often, warmer waters come into contact with the floating underside of the ice, causing a lot of melting from below.
</p>

<p>
	 
</p>

<p>
	In the 1940s, a climate anomaly in west Antarctica, which has been linked to a large El Niño event, possibly triggered a temporary change in ocean conditions.
</p>

<p>
	 
</p>

<p>
	We found that an increase in melting due to changed ocean conditions beneath the ice shelf would have led to the thinning of its grounded ice further upstream. This caused a gap to open between the grounded glacier and seabed, allowing warmer ocean waters to flow beyond the ridge.
</p>

<p>
	 
</p>

<p>
	These results are supported by evidence recovered from the sediments under the present-day ice shelf.
</p>

<p>
	 
</p>

<p>
	Once warmer waters circulate beneath the newly exposed ice, it triggers further melting and thinning, at an even faster rate.
</p>

<p>
	 
</p>

<p>
	Our model shows that this sparked rapid retreat and accelerated ice flow over the following two to three decades, culminating with the detachment of the ice shelf from the ridge between the late 1970s and the early 1980s. The pattern and timescale of retreat shown in our model is consistent with observations of changes in the glacier.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>Irreversible change</strong></span>
</p>

<p>
	<br />
	After the ice shelf detached from the ridge, there was a slowdown in ice flow and a more gradual retreat. This retreat only stopped when the grounding line reached a shallow section of bedrock in the early 1990s.
</p>

<p>
	 
</p>

<p>
	Our analysis shows that the phase of rapid retreat between the 1940s and 1970s was irreversible. If ocean conditions cooled and there was lower melting beneath the shelf during that period, then this would have been unable to stop the ongoing mass loss.
</p>

<p>
	 
</p>

<p>
	These results show us that if there is a significant increase in melting at the base of a glacier's floating ice shelf, it can retreat past a tipping point. This means that even if conditions cool down, the loss of ice mass may be irreversible.
</p>

<p>
	 
</p>

<p>
	The future implications of this are clear. What occurred before could happen again. If we cross future ice sheet tipping points, simply reverting back to the previous climate conditions might not be enough to fix the damage.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.sciencealert.com/west-antarctica-glaciers-retreat-unstoppable-study-says-tipping-point-crossed" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20632</guid><pubDate>Thu, 14 Dec 2023 23:22:36 +0000</pubDate></item><item><title>Yes, some cats like to play fetch. It&#x2019;s science!</title><link>https://nsaneforums.com/news/general-news/yes-some-cats-like-to-play-fetch-it%E2%80%99s-science-r20624/</link><description><![CDATA[<h3>
	Cats play fetch longer, with more retrievals, when they initiate the game.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	<div class="ipsEmbeddedVideo" contenteditable="false">
		<div>
			<iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="" frameborder="0" height="113" src="https://www.youtube-nocookie.com/embed/ueQTmB76M1k?feature=oembed" title="A cat fetching a tinfoil ball." width="200"></iframe>
		</div>
	</div>

	<p>
		<em>A cat owner throws a tinfoil ball a few feet in front of their expectant cat twice. The cat chases after the tinfoil </em>
	</p>

	<p>
		<em>ball and retrieves it back to the owner both times, carrying it in its mouth. Credit: Elizabeth Renner.</em>
	</p>

	<p>
		 
	</p>

	<p>
		Cats have a well-deserved reputation for being independent-minded and aloof, preferring to interact with humans on their own quirky terms. So you'd never see a cat playing fetch like a dog, right? Wrong. That sort of play behavior is more common than you might think—one of our cats was an avid fetcher in her younger years, although she's slowed down a bit with age. However, the evidence to date for specific fetching behaviors in cats is largely anecdotal.
	</p>

	<p>
		 
	</p>

	<p>
		That's why a team of British scientists set out to study this unusual feline play behavior more extensively, reporting their findings in a new paper published in the journal Scientific Reports. The researchers concluded that most cats who like to play fetch learned how to do so without any explicit training and that cats are generally in control when playing fetch with their humans. Specifically, cats will play fetch longer and retrieve the thrown object more times when they initiate the game rather than their owners. In other words, cats are still gonna be cats.
	</p>

	<p>
		 
	</p>

	<p>
		Many different animal species exhibit play behavior, according to the authors, and it's most common in mammals and birds. <a href="https://arstechnica.com/science/2023/01/watching-youtube-cat-videos-for-science-are-those-cats-playing-or-fighting/" rel="external nofollow">When cats play</a>, their behavior tends to resemble hunting behavior commonly seen in European wildcats and lynxes: rapid approach and retreat, leaping, chasing, pouncing, and stalking. Initially, as kittens, they engage in more social forms of play with their littermates like wrestling, and they tend to engage in more solitary play as adults—the opposite of dogs, who usually start playing with objects alone before transitioning to social play.
	</p>

	<p>
		 
	</p>

	<p>
		Contrary to what one might expect from cats, fetching behavior has been observed across multiple breeds all over the world, usually emerging in kittenhood. One owner who participated in a <a href="https://www.sciencedirect.com/science/article/abs/pii/S1558787822000533" rel="external nofollow">2022 study</a> noted that their cat was so obsessed with fetch that it would sometimes drop its favorite toy on their face in the middle of the night. The authors of this latest study wanted to determine whether cats were capable of learning to fetch without explicit training and to what extent they exhibited agency in beginning and ending games of fetch.
	</p>

	<p>
		 
	</p>

	<p>
		The authors created an online questionnaire with 23 questions focused specifically on when cat owners first noticed fetching behavior in their pets (either a current or past kitty), what objects the cats preferred in such games, whether cats or humans initiated and ended the games, and how many times a cat would retrieve the object in a single session of fetch. They also collected demographic data (age, sex, neuter status, breed, and whether the cat lived in a multi-cat home or with other animals like dogs), as well as demographic data for the owners. There were also two open-ended questions so owners could offer extended responses.
	</p>

	<p>
		 
	</p>

	<div class="videostyle">
		<video controls="" preload="metadata" data-controller="core.global.core.embeddedvideo">
			<source type="video/mp4" src="https://cdn.arstechnica.net/wp-content/uploads/2023/12/ariel-fetch.mp4?_=1">
		</source></video>
	</div>

	<p>
		 
	</p>

	<p>
		The resulting analysis included 1,154 cats, with responses provided by 924 owners. Those responses revealed that 94 percent of the cats who played fetch started doing so without any explicit training, with 61 percent first exhibiting the behavior as kittens. For instance, one cat first started fetching after a rubber band slipped off a rolled-up newspaper and flew down the hallway, per the owner. The cat chased the rubber band and proudly brought it back, dropping the rubber band at its owner's feet. And the cat retrieved the rubber band again when the owner shot it back down the hallway. Another owner described how their cat just brought a thrown cat toy back and dropped it at their feet without any prompting, patiently waiting for it to be thrown again.
	</p>

	<p>
		 
	</p>

	<p>
		It's unlikely the cats learned to fetch from, say, a dog in the house, since only 23 percent of the fetching cats lived in a household with a dog or another cat who liked to play fetch. Fifty-nine percent of fetching cats played as much as ten times per month, and most games averaged up to five retrievals. (Our cat Ariel clearly excelled at fetching, since she would typically retrieve her favorite sparkle ball or bouncy soccer ball as much as ten times per session.)
	</p>

	<p>
		 
	</p>

	<p>
		Among purebred cats, Siamese breeds were most likely to enjoy playing fetch (36 of 160 in the sample), followed by Bengal cats (16) and Ragdoll cats (12). But most of the fetching cats (994) were mixed breeds. Among other findings, the most favored objects for fetching were cat toys (40 percent), but cats being cats, hair ties, bottle caps, and crumpled paper were also popular. Male and female cats were roughly equal in terms of learning to play fetch. And cats were more likely to initiate and end games of fetch more often than their humans, playing more frequently, with more retrievals per session, when starting the game was their idea.
	</p>

	<p>
		 
	</p>

	<p>
		In short, "The agency of fetching lies predominantly with the cat, who is largely in control of a fetching session with their owner and determines how exactly they wish to participate in the fetching session," the authors concluded. "Owners who are receptive to their cat's initiation attempts may have stronger bonds with their cats."
	</p>

	<p>
		 
	</p>

	<p>
		DOI: Scientific Reports, 2023. <a href="http://dx.doi.org/10.1038/s41598-023-47409-w" rel="external nofollow">10.1038/s41598-023-47409-w</a>  (<a href="http://arstechnica.com/science/news/2010/03/dois-and-their-discontents-1.ars" rel="external nofollow">About DOIs</a>).
	</p>

	<p>
		 
	</p>

	<p>
		<em>Listing image by Sean Carroll</em>
	</p>
</div>

<p>
	 
</p>

<p>
	<a href="https://arstechnica.com/science/2023/12/yes-some-cats-like-to-play-fetch-its-science/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20624</guid><pubDate>Thu, 14 Dec 2023 17:44:56 +0000</pubDate></item><item><title>Daily Telescope: How small can the smallest star be?</title><link>https://nsaneforums.com/news/general-news/daily-telescope-how-small-can-the-smallest-star-be-r20623/</link><description><![CDATA[<h3>
	So tiny you can barely see it.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="Star_Cluster_IC_348_NIRCam_image-800x107" class="ipsImage" data-ratio="75.10" height="540" width="403" src="https://cdn.arstechnica.net/wp-content/uploads/2023/12/Star_Cluster_IC_348_NIRCam_image-800x1072.jpg">
	</p>

	<div>
		<em>This image from the NIRCam on the James Webb Space Telescope </em>
	</div>

	<div>
		<em>shows the central portion of the star cluster IC 348.</em>
	</div>

	<div>
		<em>NASA, ESA, CSA, STScI, and K. Luhman and C. Alves de Oliveira</em>
	</div>

	<p>
		 
	</p>

	<div class="article-intro">
		Welcome to the <a href="https://arstechnica.com/tag/daily-telescope/" rel="external nofollow">Daily Telescope</a>. There is a little too much darkness in this world and not enough light, a little too much pseudoscience and not enough science. We'll let other publications offer you a daily horoscope. At Ars Technica, we're going to take a different route, finding inspiration from very real images of a universe that is filled with stars and wonder.
	</div>
	

	<p>
		 
	</p>

	<p>
		Good morning. It's December 14, and today we're traveling about 1,000 light-years from Earth to a star cluster in the constellation Perseus. Astronomers using the James Webb Space Telescope have looked there as part of their search to answer a simple question: How small can a star be?
	</p>

	<p>
		 
	</p>

	<p>
		Webb is an ideal tool for such a search because the smallest stars—brown dwarfs, which emit light from the fusion of deuterium—are most visible in infrared light. Astronomers focused on this star cluster, IC 348, because it is young and should have new brown dwarfs. Such small stars emit the most light when they're young, so the smallest stars would be at the most visible point of their lifetime.
	</p>

	<p>
		 
	</p>

	<p>
		Using Webb in concert with ground-based telescopes, astronomers identified three targets in a range of three to eight Jupiter masses, with surface temperatures ranging from 830° to 1,500° degrees Celsius (<a href="https://www.esa.int/Science_Exploration/Space_Science/Webb/Webb_identifies_tiniest_free-floating_brown_dwarf" rel="external nofollow">see an annotated image here</a>). The smallest of these appears to weigh just three to four times Jupiter.
	</p>

	<p>
		 
	</p>

	<p>
		The study of these extremely small brown dwarfs and the discovery of mysterious hydrocarbons have led astronomers to question whether these are actually brown dwarf stars at all. They probably are, but how could they have formed? The best kind of science answers one question and, in turn, asks two more in the service of understanding the natural world all around us.
	</p>

	<p>
		 
	</p>

	<p>
		Source: <a href="https://www.esa.int/Science_Exploration/Space_Science/Webb/Webb_identifies_tiniest_free-floating_brown_dwarf" rel="external nofollow">NASA, ESA, CSA, STScI, and K. Luhman and C. Alves de Oliveira</a>
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/space/2023/12/daily-telescope-how-small-can-the-smallest-star-be/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20623</guid><pubDate>Thu, 14 Dec 2023 17:40:36 +0000</pubDate></item><item><title>You can now diagnose iPhone and Mac problems without going to an Apple Store</title><link>https://nsaneforums.com/news/general-news/you-can-now-diagnose-iphone-and-mac-problems-without-going-to-an-apple-store-r20622/</link><description><![CDATA[<p>
	Unless you have an obvious problem with your Apple device like a cracked screen, it can be hard to tell if an issue your device is having is something that needs repairing or something software-related that just needs a reinstall. Short of trial-and-error, such an issue requires heading down to the Apple Store for a Genius to diagnose the problem.
</p>

<p>
	 
</p>

<p>
	Now you can save yourself a trip. Apple announced this week that its Diagnostic troubleshooting suites are available for iPhone and Mac as part of its Self Service Repair program. Apple explains that the tool is “intended for users with the knowledge and expertise to repair Apple devices,” and “will give customers the same ability as Apple Authorized Service Providers and Independent Repair Providers to test devices for optimal part functionality and performance, as well as identify which parts may need repair.”
</p>

<p>
	 
</p>

<p>
	Along with the new tool (which requires iOS 17 or macOS Sonoma 14.1 and later), Apple also announced that all iPhone 15 models and M2 Macs are now able to be self-repaired. The tools are available in the U.S. and will expand to Europe in 2024.
</p>

<p>
	 
</p>

<p>
	To use the new tool, you’ll need to put your iPhone or Mac into diagnostics mode and then enter its serial number to check which Diagnostic suites are available for your device.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.macworld.com/article/2172507/apple-self-repair-diagnostic-troubleshooting-suite-iphone-mac.html" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20622</guid><pubDate>Thu, 14 Dec 2023 16:45:28 +0000</pubDate></item><item><title>Most people don&#x2019;t think their health system works well, global survey finds</title><link>https://nsaneforums.com/news/general-news/most-people-don%E2%80%99t-think-their-health-system-works-well-global-survey-finds-r20609/</link><description><![CDATA[<p>
	December 13, 2023 — The first step in improving a health system is to understand how it is performing. Governments often focus evaluations on metrics like number of providers or health facilities, but this approach is limited, according to a team of health policy researchers from Harvard T.H. Chan School of Public Health. Drawing on data from a 15-country survey, they aim to fill in what they see as a crucial gap in many health system assessments—the opinions of health care consumers.
</p>

<p>
	 
</p>

<p>
	In a series of six papers published online in Lancet Global Health on December 12, the researchers compared various aspects of health system performance globally, including people’s confidence in their health system and views on the quality of care they’ve received, inequities in coverage and quality, and links between health system quality and COVID-19 vaccination rates.
</p>

<p>
	 
</p>

<p>
	The studies used data captured in 2022 and 2023 from more than 25,000 adults across 15 countries: <em>Argentina, Colombia, Ethiopia, Greece, India, Italy, Kenya, Laos, Mexico, Peru, South Africa, South Korea, United Kingdom, United States, and Uruguay</em>. Participants were contacted through the People’s Voice Survey, a new instrument designed by the Quality Evidence for Health System Transformation (QuEST) Network, a multicountry research consortium based at Harvard Chan School.
</p>

<p>
	 
</p>

<p>
	Through the survey data, the researchers were able to get a better picture of how health systems actually function, said Todd Lewis, research associate in the Department of Global Health and Population, a co-author on several of the papers, and People’s Voice Survey lead researcher. “While many surveys focus on the experience of recent patients, our analyses examine the views of the entire population. This provides a much more comprehensive snapshot of population sentiment about the health system and can be powerful information for policymakers.”
</p>

<p>
	 
</p>

<p>
	The overarching message coming out of the survey is that people across the world are not confident that their health systems can meet their needs. Only one-quarter of respondents said their system worked well, and fewer than half were confident that they could get and afford good quality care if they were to become sick—even in countries with universal insurance systems.
</p>

<p>
	 
</p>

<p>
	“The level of unhappiness in the health systems of high-income countries was surprising,” said Margaret Kruk, professor of health systems and director of the QuEST Network. For example, 70% of Ethiopians think their health system has been improving over the past two years while just 6% of Britons and 15% of Americans do. Kruk, also a co-author on multiple papers and principal investigator of the People’s Voice Survey, thinks this is in part due to dissatisfaction around governments’ responses to COVID, in addition to other factors such as staffing problems in the health workforce.
</p>

<p>
	 
</p>

<p>
	Other key findings from the series:
</p>

<p>
	 
</p>

<ul>
	<li>
		Women and people with post-secondary education, and, in some countries, young people, were more pessimistic about their health systems than respondents with lower education levels, men, and people older than 30 years.
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		People who recently received high quality care and reported feeling confident in their health system were more likely to have received a COVID-19 vaccination, whereas people who had unmet health needs or experienced discrimination from a provider were less likely.
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		In countries with a public primary care system, only four in ten people use public primary care as their usual provider. Others rely on private providers and secondary care facilities such as hospitals.
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		The availability of public health insurance in Africa and Asia isn’t necessarily leading to more people receiving important preventive services. For example, people with public insurance aren’t much more likely to receive blood pressure checks than people without insurance and are less likely to receive them than people with private insurance.
	</li>
</ul>

<p>
	 
</p>

<ul>
	<li>
		In Latin America where health insurance coverage is high, inequities in care persist. While people reported high access to care, only one in three respondents had a high-quality source of care. Only one quarter of respondents said that their mental health needs were met. 
	</li>
</ul>

<p>
	<br />
	Kruk said that the pessimism expressed across countries by people with higher incomes and more education, and by young people, “bodes poorly for future support for publicly financed insurance, including efforts for universal health coverage, as these groups are essential contributors to any such scheme.” She and her colleagues suggest that governments will need to gain trust from their populations before moving ahead with health system reforms.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.hsph.harvard.edu/news/features/peoples-voice-survey-health-systems/" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20609</guid><pubDate>Wed, 13 Dec 2023 22:13:37 +0000</pubDate></item><item><title>How slower breathing really helps against stress</title><link>https://nsaneforums.com/news/general-news/how-slower-breathing-really-helps-against-stress-r20608/</link><description><![CDATA[<p>
	People who are often stressed can feel calmer by making certain adjustments to their breathing. Possibly this also positively affects concentration and attention. Psychologist Roderik Gerritsen studied the effects of breathing differently and explained them. Gerritsen received his Ph.D. on 13 December.
</p>

<p>
	 
</p>

<p>
	Breathing therapy is fairly common these days. People experience positive effects when dealing with stress and anxiety, but in science there was hardly any attention for this. Roderik Gerritsen changed that. Yet that was not the intention when he started his Ph.D. research. "Many studies have been done on meditation, from Zen meditation to loving kindness and transcendental meditation. These report positive effects on physical and mental health. My question was: what leads to those effects?"
</p>

<p>
	 
</p>

<p>
	Studying all that research, Gerritsen missed something. "I suddenly thought: why is nobody talking about breathing? In all those meditation forms, your breathing also changes, but nobody brought that up."
</p>

<p>
	 
</p>

<p>
	Gerritsen got into it, and came up with a possible explanation for the effects of breathing differently. For instance, paying attention to your breathing, which is usually done in meditation, activates the parasympathetic nervous system. This is the part of your nervous system that causes organs to enter a state of rest and recovery. With slower breathing, often a result of breathing with attention, your heart rate drops. In fact, this is the way you tell your body not to react to threats.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>Reduction in stress levels can do a lot for body and mind</strong></span>
</p>

<p>
	<br />
	As a cognitive psychologist, Gerritsen was particularly curious whether breathing differently can bring improvements at the cognitive level, such as attention, concentration, planning and keeping yourself to that planning. Not enough research has been done on this yet, Gerritsen emphasizes, but he can imagine that it works. "These breathing patterns put you in a relaxed state that allows for greater mental flexibility in various contexts."
</p>

<p>
	 
</p>

<p>
	Apart from literature research, Gerritsen also conducted experiments himself with groups of elderly people doing tai chi, for example. "Not much came out of that, it was before I came up with the theory on the background of the effects of breathing. Now I would really like to do experiments with people who get as close as possible to a certain breathing rhythm, for example by having them look at a little ball that grows and shrinks at the desired breathing rhythm."
</p>

<p>
	 
</p>

<p>
	It is difficult to then investigate long-term effects as well, but that will certainly happen after Gerritsen's inception. "Other labs are already taking it up."
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>Practice at a quiet moment first</strong></span>
</p>

<p>
	<br />
	Does Gerritsen have any advice, can we all work on our breathing? "People who often feel stressed or have burnout can definitely benefit from changing their breathing." In that case, they need to practice it at calm moments first, otherwise it can actually increase stress. Some students who practiced belly breathing for the first time in one of my experiments found it difficult and stressful. So practice quietly first, and focus first on a fairly low frequency of breathing.
</p>

<p>
	 
</p>

<p>
	<span style="color:#16a085;"><strong>"Breathe slowly and deeply, about six times a minute, so ten seconds per breath. If you do this regularly, the frequency of your basic breathing also drops, and that lowers stress."</strong></span>
</p>

<p>
	 
</p>

<p>
	If you have mastered slower breathing a bit, you can try it in situations where you notice you are stressed. "That low frequency is the most important thing. In addition, you can<span style="color:#16a085;"><strong> try to make the exhaling take a little longer than the inhaling</strong></span>."
</p>

<p>
	 
</p>

<p>
	That makes for a greater variation in your heart rate variation (hrv) and that is healthy. It also activates that calming parasympathetic nervous system more. "Finally and really less important than the low frequency, it's interesting to pay attention to the fact that your belly expands when breathing in and not your chest."
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://medicalxpress.com/news/2023-12-slower-stress.html" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20608</guid><pubDate>Wed, 13 Dec 2023 21:23:40 +0000</pubDate></item><item><title>Tesla recalls every car with Autopilot as feds say it&#x2019;s too easily misused</title><link>https://nsaneforums.com/news/general-news/tesla-recalls-every-car-with-autopilot-as-feds-say-it%E2%80%99s-too-easily-misused-r20601/</link><description><![CDATA[<h3>
	Inadequate driver monitoring means that Autopilot is far too easily misused.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	
	<p>
		More than 2 million Tesla electric vehicles <a href="https://static.nhtsa.gov/odi/rcl/2023/RCLRPT-23V838-8276.PDF" rel="external nofollow">are subject to a new safety recall today</a>. At issue is the much-criticized Autopilot driver-assistance feature, more specifically the Autosteer component.
	</p>

	<p>
		 
	</p>

	<p>
		At one time, Tesla claimed that Autosteer cut crashes by 40 percent—<a href="https://arstechnica.com/cars/2019/02/in-2017-the-feds-said-tesla-autopilot-cut-crashes-40-that-was-bogus/" rel="external nofollow">a statistic that turned out to be completely false</a> once a third party <a href="https://arstechnica.com/cars/2018/05/sorry-elon-musk-theres-no-clear-evidence-autopilot-saves-lives/" rel="external nofollow">analyzed the data</a>. Now, following an <a href="https://arstechnica.com/tech-policy/2022/06/us-expands-probe-of-tesla-autopilot-crashes-in-step-toward-possible-recall/" rel="external nofollow">ongoing engineering analysis by the National Highway Safety Administration Office of Defects Investigation</a> that found Tesla has inadequate driver monitoring and that the system could lead to "foreseeable misuse," the automaker has finally reacted.
	</p>

	<p>
		 
	</p>

	<p>
		Autopilot is Tesla's name for a suite of advanced driver assistance systems, but the two principal components are "traffic-aware cruise control" and Autosteer. The former maintains the car's speed relative to a vehicle in front, and the latter reads lane markers on the road and keeps the car between them. The system was originally based on one supplied by Mobileye, although that relationship broke down, and Tesla was dropped as a customer by Mobileye due to Mobileye's concern that Tesla was "pushing the envelope in terms of safety."
	</p>

	<p>
		 
	</p>

	<p>
		Since then, Tesla has developed its own system, removing sensors like forward-looking radar to save costs. However, its vision-only approach <a href="https://arstechnica.com/cars/2022/02/teslas-radar-less-cars-investigated-by-nhtsa-after-complaints-spike/" rel="external nofollow">led to hundreds of complaints to NHTSA</a> detailing events where Tesla's cameras registered false positives while driving and slammed on the brakes.
	</p>

	<p>
		 
	</p>

	<p>
		A particular problem with Autopilot has been the mixed messages from the Automaker. While its website states that "[c]urrent Autopilot features require active driver supervision and do not make the vehicle autonomous," Tesla CEO Elon Musk has repeatedly given the impression that the system <em>is</em> autonomous, particularly in TV interviews with mainstream news outlets. (Tesla's website also <a href="https://www.tesla.com/videos/autopilot-self-driving-hardware-neighborhood-long" rel="external nofollow">still hosts a video claiming that the system can drive itself</a>.)
	</p>

	<p>
		 
	</p>

	<p>
		(<a href="https://www.theverge.com/2023/6/20/23767041/tesla-hacker-elon-mode-hands-free-full-self-driving-autopilot" rel="external nofollow">There are also reports that Musk operates his own Teslas</a> in a partially autonomous state with no driver monitoring at all.)
	</p>

	<p>
		 
	</p>

	<p>
		Since Autopilot's release, other automakers have brought advanced partially automated driving systems to market, including General Motors' Super Cruise, Ford's Bluecruise, and BMW's Driving Assistance Professional. Unlike Autopilot, these systems have a more tightly controlled operational design domain; they will only activate on restricted access highways that have been GPS-mapped, and all three include a dedicated infrared camera that uses gaze-tracking to ensure the driver is looking at the road ahead.
	</p>

	<p>
		 
	</p>

	<p>
		By contrast, until relatively recently, Tesla merely used a torque sensor on the steering column, which was easily defeated by hanging something heavy like a water bottle off the steering wheel rim. Recently, the company has claimed that a wide-angle camera built into the rearview mirror is capable of driver monitoring, although it <a href="https://www.reddit.com/r/RealTesla/comments/15hc25d/fsds_driver_monitoring_system_shown_once_again_to/" rel="external nofollow">apparently does not work well enough to prevent a giant stuffed bear from being recognized as a human driver</a>.
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		That it took this long is a regulatory failure
	</h2>

	<p>
		Ars has reported on a litany of Tesla Autopilot safety flaws over the years. For instance, the company has used inadequate driver monitoring systems that could be easily be defeated, <a href="https://arstechnica.com/cars/2021/04/consumer-reports-shows-tesla-autopilot-works-with-no-one-in-the-drivers-seat/" rel="external nofollow">allowing a Tesla to drive on public roads with no human in the driver's seat</a>.
	</p>

	<p>
		 
	</p>

	<p>
		Almost a dozen Teslas, <a href="https://arstechnica.com/cars/2021/08/us-investigates-autopilot-after-11-teslas-crashed-into-emergency-vehicles/" rel="external nofollow">operating under Autopilot</a>, have crashed into emergency vehicles at the side of a road. And despite Musk's repeated claims that his company builds the safest cars available, Autopilot was implicated <a href="https://arstechnica.com/cars/2022/06/teslas-using-autopilot-crashed-273-times-in-less-than-a-year/" rel="external nofollow">in 273 crashes between July 2021 and May 2022</a>. Earlier this year, the German publication Handelsblatt found that Tesla was aware of more than 3,000 customer complaints about Autopilot's unsafe behavior.
	</p>

	<p>
		 
	</p>

	<p>
		At the start of 2023, an ongoing lawsuit brought by relatives of engineer Walter Huang, who died in 2018 when his Tesla Model X smashed into a highway gore while operating under Autopilot, revealed that <a href="https://arstechnica.com/tech-policy/2023/11/elon-musk-and-tesla-ignored-autopilots-fatal-flaws-judge-says-evidence-shows/" rel="external nofollow">Tesla staged a widely viewed demo in 2016</a>, which emails showed <a href="https://arstechnica.com/cars/2023/01/musk-oversaw-staged-tesla-self-driving-video-emails-show/" rel="external nofollow">Musk personally oversaw</a>. <a href="https://arstechnica.com/cars/2023/01/tesla-confirms-justice-department-investigation-into-autopilot/" rel="external nofollow">And in January, we learned</a> that the US Department of Justice has also been investigating Autopilot.
	</p>

	<p>
		 
	</p>

	<p>
		In November of this year, a Florida court ruled that there is "<a href="https://arstechnica.com/tech-policy/2023/11/elon-musk-and-tesla-ignored-autopilots-fatal-flaws-judge-says-evidence-shows/" rel="external nofollow">reasonable evidence</a>" to conclude that Musk and Tesla knew of Autopilot defects but refused to fix them, and last week, the former Tesla employee and whistleblower who leaked thousands of accident reports to Handelsblatt told the BBC that <a href="https://arstechnica.com/tech-policy/2023/12/tesla-whistleblower-calls-cars-with-autopilot-experiments-in-public-roads/" rel="external nofollow">Tesla was conducting "experiments"</a> on public roads.
	</p>

	<p>
		 
	</p>

	<p>
		Many of these issues <a href="https://www.ntsb.gov/news/press-releases/Pages/NR20200225.aspx" rel="external nofollow">had been flagged by the National Transportation Safety Board</a>, but unlike NHTSA, NTSB has no regulatory authority and cannot order an automaker to recall a dangerous product.
	</p>

	<h2>
		Yes, it’s a recall, even if the fix is software
	</h2>

	<p>
		It's important to note that this is an official safety recall, even if the fix is a software update. <em>H</em><em>ow</em> the fix happens is immaterial to NHTSA's safety recall process; the point is that the public and owners are notified that there <em>is</em> a safety defect and that there is a remedy.
	</p>

	<p>
		 
	</p>

	<p>
		In this case, the update "will incorporate additional controls and alerts to those already existing on affected vehicles to further encourage the driver to adhere to their continuous driving responsibility whenever Autosteer is engaged, which includes keeping their hands on the steering wheel and paying attention to the roadway."
	</p>

	<p>
		 
	</p>

	<p>
		Additionally, some Teslas will get more prominent visual alerts on the screen, and there will be "additional checks upon engaging Autosteer and while using the feature outside controlled access highways and when approaching traffic controls" that will lock users out of being able to activate Autopilot if they fail to "demonstrate continuous and sustained driving responsibility while the feature is engaged."
	</p>

	<p>
		 
	</p>

	<p>
		NHTSA says that its investigation will remain open so the agency can monitor whether or not Tesla's proposed fixes actually solve the problem.
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/cars/2023/12/more-than-2-million-teslas-are-being-recalled-due-to-unsafe-autopilot/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20601</guid><pubDate>Wed, 13 Dec 2023 19:20:11 +0000</pubDate></item><item><title>Daily Telescope: A space-based camera spys a secretive Project Kuiper satellite</title><link>https://nsaneforums.com/news/general-news/daily-telescope-a-space-based-camera-spys-a-secretive-project-kuiper-satellite-r20600/</link><description><![CDATA[<h3>
	Amazon has been reticent to share details about its Kuiper satellites.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="kuiper-sat-800x800.png" class="ipsImage" data-ratio="75.10" height="540" width="540" src="https://cdn.arstechnica.net/wp-content/uploads/2023/12/kuiper-sat-800x800.png">
	</p>

	<div>
		<em>An image of a Kuiper satellite in space.</em>
	</div>

	<div>
		<em>HEO Space</em>
	</div>

	<p>
		 
	</p>

	<div class="article-intro">
		Welcome to the <a href="https://arstechnica.com/tag/daily-telescope/" rel="external nofollow">Daily Telescope</a>. There is a little too much darkness in this world and not enough light, a little too much pseudoscience and not enough science. We'll let other publications offer you a daily horoscope. At Ars Technica, we're going to take a different route, finding inspiration from very real images of a universe that is filled with stars and wonder.
	</div>
	

	<p>
		 
	</p>

	<p>
		Good morning. It's December 13, and today's image comes from a company that images other objects in space—HEO Space. It reveals one of the two Project Kuiper satellites currently undergoing testing in low-Earth orbit.
	</p>

	<p>
		 
	</p>

	<p>
		Project Kuiper is Amazon's answer to SpaceX's Starlink satellite Internet constellation. However, in the run-up to the October launch of the first two demonstration satellites on an Atlas V rocket, Amazon was super secretive about the satellites. It released almost no technical details or any photos. So this in-space image is the best we've got for now.
	</p>

	<p>
		 
	</p>

	<p>
		My colleague, Stephen Clark, reached out to Amazon to see if we can expect more information about Project Kuiper soon. "We did see that!" James Watkins, of Amazon, said in referencing the HEO Space image. "Very cool. Nothing to add from our side at the moment, and still no plans to release photo/renderings in the near-term."
	</p>

	<p>
		 
	</p>

	<p>
		So yeah, no dice.
	</p>

	<p>
		 
	</p>

	<p>
		Based in Australia, HEO Space flies sensors as hosted payloads on other satellites, with the goal of providing the capability to identify other satellites in space and assess their status, operation, and anomalous behavior. There sure are a lot of smart people doing smart things in space these days.
	</p>

	<p>
		 
	</p>

	<p>
		Source: <a href="https://twitter.com/heospace/status/1734332865910075609/photo/1" rel="external nofollow">HEO Space</a>
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/space/2023/12/daily-telescope-an-in-situ-image-of-a-project-kuiper-satellite/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20600</guid><pubDate>Wed, 13 Dec 2023 19:18:50 +0000</pubDate></item><item><title>Daily Telescope: One of the few astronomical objects named after a woman</title><link>https://nsaneforums.com/news/general-news/daily-telescope-one-of-the-few-astronomical-objects-named-after-a-woman-r20588/</link><description><![CDATA[<h3>
	This image was captured from mountainous terrain in Poland.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="jones1-800x611.jpg" class="ipsImage" data-ratio="75.10" height="540" width="708" src="https://cdn.arstechnica.net/wp-content/uploads/2023/12/jones1-800x611.jpg">
	</p>

	<div>
		<em>The Jones 1 Nebula.</em>
	</div>

	<div>
		<em>Michal Mlynarczyk</em>
	</div>

	<p>
		 
	</p>

	<div class="article-intro">
		Welcome to the <a href="https://arstechnica.com/tag/daily-telescope/" rel="external nofollow">Daily Telescope</a>. There is a little too much darkness in this world and not enough light, a little too much pseudoscience and not enough science. We'll let other publications offer you a daily horoscope. At Ars Technica, we're going to take a different route, finding inspiration from very real images of a universe that is filled with stars and wonder.
	</div>
	

	<p>
		 
	</p>

	<p>
		Good morning. It's December 12, and today's photo comes to us from Michal Mlynarczyk in the Holy Cross Mountains, Poland. The subject of Michal's image is the lovely Jones 1 nebula.
	</p>

	<p>
		 
	</p>

	<p>
		This faint nebula was found in 1941 by an American astronomer named Rebecca "Becky" Jones using photographic plates. Its name, Jones 1, is notable because relatively few astronomical objects are named after women, and this is one of the first. Jones made her career as an assistant to other more "notable" astronomers of the day, including Harlow Shapley and Wallace Eckert.
	</p>

	<p>
		 
	</p>

	<p>
		Jones must have been a talented assistant because she worked at a few world-class facilities, including Lick Observatory beginning in 1927, the Harvard Observatory with Shapley, and later the Watson Scientific Laboratory in New York City. The best information I could find on Jones, who is fairly obscure on even the Internet of today, is from a Wayback Machine <a href="https://web.archive.org/web/20120113020811/https://www.columbia.edu/cu/computinghistory/jones.html" rel="external nofollow">archived page</a> from Columbia University.
	</p>

	<p>
		 
	</p>

	<p>
		Her relative obscurity is a reminder that this planetary nebula, located about 2,300 light-years away from Earth, will outlive us all, as well as any remnant memories of us.
	</p>

	<p>
		 
	</p>

	<p>
		Source: <a href="https://www.astrobin.com/6odun5/" rel="external nofollow">Michal Mlynarczyk</a>
	</p>
</div>

<p>
	 
</p>

<p>
	<a href="https://arstechnica.com/space/2023/12/daily-telescope-one-of-the-few-astronomical-objects-named-after-a-woman/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20588</guid><pubDate>Tue, 12 Dec 2023 17:53:08 +0000</pubDate></item><item><title>Deep into the Kuiper Belt, New Horizons is still doing science</title><link>https://nsaneforums.com/news/general-news/deep-into-the-kuiper-belt-new-horizons-is-still-doing-science-r20587/</link><description><![CDATA[<h3>
	Designed to study Pluto, the spacecraft’s instruments are being repurposed.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="GettyImages-1133641758-1-800x450.jpg" class="ipsImage" data-ratio="62.50" height="405" width="720" src="https://cdn.arstechnica.net/wp-content/uploads/2023/12/GettyImages-1133641758-1-800x450.jpg">
	</p>

	<div>
		<em>Artist's impression of the New Horizons spacecraft at Arrokoth. This astronomical body is the most distant </em>
	</div>

	<div>
		<em>object visited by human spacecraft, with the flyby of NASA's New Horizons spacecraft taking place on January 1, 2019.</em>
	</div>

	<p>
		 
	</p>
	

	<p>
		New Horizons is now nearly twice as far from the Sun as Pluto, the outer planets are receding fast, and interstellar space is illuminated by the vast swath of the Milky Way ahead. But the spacecraft’s research is far from over. Its instruments are all functioning and responsive, and the New Horizons team has been working hard, pushing the spacecraft’s capabilities to carry out new tasks.
	</p>

	<p>
		 
	</p>

	<p>
		Since its launch in January 2006, the New Horizons spacecraft has traveled over 5 billion miles, passed by the moons of Jupiter, and surveyed the scaley frozen methane ice of its target planet Pluto. In January 2019, it buzzed by Arrokoth, another billion miles beyond Pluto—the most distant object to have ever been visited by a spacecraft. The data it returned from this intact remnant of our Solar System’s formation has given us important new insights into how that process happened.
	</p>

	<p>
		 
	</p>

	<p>
		But New Horizons’ mission is far from over. While it may never have another close encounter with an orbiting object, the team that operates the spacecraft is working out ways to put its instruments to new uses.
	</p>

	<h2>
		Budgets and power budgets
	</h2>

	<p>
		As New Horizons has gotten further from the Sun, piloting the spacecraft requires not only patience but a revised focus. Led by Alice Bowman—the mission’s version of Star Trek’s Scotty—engineers start building a command load three months in advance, then run them on a simulator at the Applied Physics Laboratory to check that they’re sound. Transmitting the commands currently takes eight hours to reach the craft from Earth and requires booking a slot on NASA’s Deep Space Network—three huge radio dishes located in California, Australia, and Spain, which handle communications with multiple space missions. So, like getting a table at a popular restaurant, bookings are required months in advance unless there’s an emergency.
	</p>

	<p>
		 
	</p>

	<p>
		New Horizons spins as it races through space, and while some instruments (like its particle detectors) operate best in spinning mode, to use its imagers, the craft has to be de-spun and pointed, using precious fuel. Power comes from an RTG (radioisotope thermoelectric generator), essentially a nuclear battery made from plutonium-238, which has a half-life of 87.7 years. It’s not currently known how long that power will last.
	</p>

	<p>
		 
	</p>

	<p>
		The two Voyager spacecraft, which already left the Solar System ahead of New Horizons, are still operational but have had to switch off some instruments, including the onboard cameras, which were "power hogs," so now they run just a few instruments with a low power demand, then send back the data. As with the Voyagers, the more power-hungry instruments on New Horizons (e.g., the imagers) that need heaters to keep them at operating temperatures will likely be switched off first. It’s hard to predict when that will be, though, because the RTG’s lifespan is continually being extended by the engineering team, which keeps inventing ever more ingenious tweaks to eke out the power.
	</p>

	<p>
		 
	</p>

	<p>
		The mission also needs to continue paying those engineers. Happily, NASA recently announced that funding will continue for New Horizons through at least 2028 or 2029.
	</p>

	<h2>
		A new view of KBOs
	</h2>

	<p>
		One of the spacecraft’s missions is to continue to explore the Kuiper Belt, which extends from Neptune’s orbit at 30 AU to beyond 50 AU from the Sun. It consists of chunks of rock, ice, comets, and dust. Since leaving the largest Kuiper Belt Object (KBO) Pluto behind, the geology team has been using the spacecraft’s designed capabilities to study other KBOs, so far finding more than 100 new ones and passing almost 20 KBOs close enough to reveal surface properties, shapes, rotational periods, and close-in orbiting moons.
	</p>

	<p>
		 
	</p>

	<p>
		The Kuiper Belt holds the key to a big puzzle. Why did all the planets accrete from clouds of interstellar dust and gas rather than just smashing into each other in mutual annihilation? Asteroids are too battered and reshaped by multiple collisions to retain traces of their formation. So when the geology team learned the spacecraft would fly by a large KBO, they got very excited.
	</p>

	<p>
		 
	</p>

	<p>
		Sweeping past the <a href="https://en.wikipedia.org/wiki/Contact_binary_(small_Solar_System_body)" rel="external nofollow">contact binary</a> Arrokoth at a distance of just 3,500 kilometers (2,198 miles) in 2019, the images that New Horizons returned appeared to an untrained eye to resemble an unspectacular lumpy potato. But its lonely location in the outer Kuiper Belt has kept Arrokoth intact, essentially a fossil from the early days of Solar System formation. Modeling the detailed data New Horizons obtained of this 36-kilometer-long (22-mile) by up to 20-kilometer-wide (13-mile) object, shows that the larger side was assembled from 8 to 10 smaller components, which all had to be moving quite slowly to successfully "dock." “If they’d come together faster, their outlines would have been smooshed by the impact,” said Will Grundy, head of the mission’s Planetary Geology team at Lowell Observatory, where Pluto was discovered in 1930.
	</p>

	<p>
		 
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="UltimaThule_CA06_color_20190516-640x448." class="ipsImage" data-ratio="70.00" height="448" width="640" src="https://cdn.arstechnica.net/wp-content/uploads/2023/12/UltimaThule_CA06_color_20190516-640x448.png">
	</p>

	<div>
		<em>Composite image of the primordial contact binary Kuiper Belt Object Arrokoth, compiled from data </em>
	</div>

	<div>
		<em>obtained by NASA's New Horizons spacecraft as it flew by the object on January 1, 2019.</em>
	</div>

	<div>
		<em>NASA/Johns Hopkins University Applied Physics Laboratory</em>
	</div>

	<p>
		 
	</p>

	<p>
		The team now thinks that accreting dust formed "pebbles" around the size of golf balls. Just like the lead cyclist in a peloton works harder than the riders behind, trailing particles were shielded from gas drag by those ahead of them. “This created what’s known as a streaming instability, where many particles can accumulate near enough to each other for the force of gravity to take over and cause them to collapse into a single large object,” explained Grundy. “Evidence of the events preserved on Arrokoth has never been seen before—it’s a key advance in understanding how planetesimals, then planets, formed in our early Solar System.”
	</p>

	<p>
		 
	</p>

	<p>
		With Arrokoth providing such spectacular insights, the team would love to find another KBO to have a close encounter with before exiting the Solar System. It won’t be easy—finding Arrokoth took four years. To speed up the process, J.J. Kavelaars at the University of British Columbia and Wes Fraser at the Canadian National Research Council have turned to AI. Using technology that would have astounded Pluto’s discoverer Clyde Tombaugh, the pair have been applying deep-learning algorithms to observations made with two of the world’s largest telescopes located in Hawaii and Chile.
	</p>

	<p>
		 
	</p>

	<p>
		The software has dramatically increased KBO detection rates over the last two years and significantly reduced "false" candidate sources. Human vetting of an entire night’s worth of search data now takes just a few hours rather than weeks, and AI reanalysis of 2020 data turned up 67 more KBOs than unassisted human searches. “Sooner is always better for finding a new target. It takes time to refine the target's orbit and navigate the spacecraft to the flyby—we had about 4.5 years lead time for Arrokoth,” said Grundy.
	</p>

	<h2>
		Checking for dust
	</h2>

	<p>
		New Horizons launched with seven instruments onboard, all optimized to explore Pluto. But despite the lack of an object to fly by, only LEISA (Linear Etalon Imaging Spectral Array, part of a larger detector used specifically for imaging objects on a flyby) is not currently in use.  All seven main instruments are still working well and active. The key to getting the New Horizons "old dog" to do new tricks has been improvisation—and the spacecraft’s unique location.
	</p>

	<p>
		 
	</p>

	<p>
		REX is the Radio Science Experiment, and it relies on the main dish used to communicate with Earth. It has already measured thermal emissions during flybys of Pluto and Arrokoth, and the researchers are now evaluating whether they can point it back along the ecliptic and detect the thermal signature of <a href="https://en.wikipedia.org/wiki/Zodiacal_light" rel="external nofollow">zodiacal dust</a>. Tests are also underway to see if REX’s huge (83-inch diameter) dish antenna can help increase the sensitivity of the spacecraft’s main dust particle detector.
	</p>

	<p>
		 
	</p>

	<p>
		Meanwhile, the visible and infrared imager and spectrometer "Ralph"—the spacecraft’s main “eyes” during the Pluto rendezvous—has been used by Grundy recently to image Neptune and Uranus. “Lit from the side, we’re getting a view analogous to seeing exoplanets around other stars,” said Grundy. In September, Ralph collected photometric data on both ice giants while the HST simultaneously imaged them from Earth orbit. “It’ll be a great test to see how many of the variations HST sees in surface light and color caused by cloud activity on Neptune and Uranus, can be discerned by New Horizons,” said Grundy. “But the data will take several months to arrive—our download rate is under 2k Baud, a lot slower than that 36k Baud home modem you might’ve once owned.”
	</p>

	<p>
		 
	</p>

	<p>
		The Planetary Geology team has also been studying Kuiper Belt dust, fragments of rock and ice shed by comets or formed when KBOs collide with each other or with interstellar dust particles zooming in from space at speeds of 40–100 kilometers per second (25–60 mps). The collisions emit sprays of dust grains typically 10–100 microns across, many of which begin a long slow spiral into the Sun, like an immense dusty bathtub draining.
	</p>

	<p>
		 
	</p>

	<p>
		The New Horizons instrument measuring this dust is the Student Dust Counter (SDC), built and run by students at the University of Colorado as a way for them to contribute to the mission at a near-professional level. One of those graduate students, Andrew Poppe, now an associate research scientist at the Space Sciences Laboratory (University of California, Berkeley), recently took over as the leader of New Horizons’ Heliophysics team.
	</p>

	<p>
		 
	</p>

	<p>
		The SDC consists of 12 detectors made from thin (30-micron) rectangular pieces of special plastic about the size of a Hershey’s chocolate bar, coated with aluminum. “They’re lined up in two rows, facing forward on the front of the spacecraft—a lot like a hood ornament,” said Poppe. When a particle hits a detector, it’s registered as a tiny electric pulse, with the magnitude of the pulse depending on the particle’s size and speed, from which mass and approximate size can be inferred. The density of the dust is incredibly low. “We only get a couple of hits a week, so it’s a bit like hunting for needles in a very large haystack. The combined surface area of the detectors is small, but we’re traveling at quite a clip—around 30,000 miles per hour—so that helps,” Poppe said. “From this data, we’re building a picture of how much dust is out there and where it's concentrated.”
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<h2>
		The edge of the Solar System
	</h2>

	<p>
		The SDC has been collecting data for most of the mission. Now at 60 AU from the Sun, it’s become the most remote dust counter ever run. And it has turned up something strange. Earth-based observations predict that Kuiper belt dust should peak at 40–50 AU, but recent SDC data confounded this expectation. “The spacecraft should be showing a declining dust count this far out, but we’re not seeing that,” said Poppe. “We’re scratching our heads about why. It’s a preliminary but intriguing finding.”
	</p>

	<p>
		 
	</p>

	<p>
		Understanding how the uppermost layer of the Sun’s atmosphere, evaporating away from the solar surface at supersonic speeds, thins out and changes with distance is another major focus for the Heliophysics team. This solar wind of charged particles (97 percent protons, two percent helium ions, and a sprinkling of heavy ions) carves out a protective bubble in space, shielding Earth from lethal ionizing radiation. New Horizons measures the direction of travel and energy of charged particles using SWAP (solar wind around Pluto) for energies of up to 10 keV, and PEPSSI (Pluto Energetic Particle Spectrometer Science Investigation) for more energetic charged particles (between 10 keV and 106 keV).
	</p>

	<p>
		 
	</p>

	<p>
		“The exciting thing with New Horizons is that we can study the transition from where the Sun is in charge of things to where interstellar space and neutral particles dominate,” said Poppe. Unaffected by electromagnetic fields, these uncharged particles continuously drift into the heliosphere. If they become ionized, New Horizons can detect them with SWAP and PEPSSI. “We call these newly ionized arrivals "pickup ions." The energy of each particle tells us what likely happened to it over its lifetime—you can think of them as "individual messengers from interstellar space," Poppe explained.
	</p>

	<h2>
		A distant telescope
	</h2>

	<p>
		Finally, researchers are taking advantage of the craft’s onboard telescope. What it lacks in resolving power, it compensates for with location.
	</p>

	<p>
		 
	</p>

	<p>
		“What’s exciting about where the spacecraft is now is the ability to do things that are completely impossible with Earth-based telescopes. They’re so close to the Sun, it’s like sitting next to a roaring campfire and trying to spot the glowing eyes of small animals well beyond the firelight,” said Grundy. “It’s impossible to see small, faraway objects, even with Earth-orbiting space telescopes, because the light reflected from far-flung objects dims exceedingly quickly—by the distance (r) to the fourth power (r4). Meaning they get completely washed out by sunlight reflected from nearby dust.”
	</p>

	<p>
		 
	</p>

	<p>
		For the Astrophysics team headed by Tod Lauer, while New Horizons lacks the power to probe deep space of the Hubble or James Webb Space Telescopes, it has the huge advantage of prime dark sky real estate. “Where we are now, the Milky Way is spectacular, stretching all the way around the sky. With Earth lost in the glare of the fading Sun, our equator is now defined more by the band of the galaxy than Earth-based notions of north and south,” said Lauer.
	</p>

	<p>
		 
	</p>

	<p>
		He has been using LORRI (Long Range Reconnaissance Imager) a panchromatic high-magnification imager that focuses visible light onto a charge-coupled device (CCD) and registers the data in black and white. Originally designed as a backup for Ralph during the Pluto flyby, LORRI has no filters or shutter. Essentially equivalent to an 8.2-inch reflector, it’s slightly less powerful than the telescopes most amateur astronomers use. But unlike amateur scopes, the optical truss is made of silicon carbide. designed to be stable at low operating temperatures.
	</p>

	<p>
		 
	</p>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="GettyImages-1349715996-640x640.jpg" class="ipsImage" data-ratio="84.38" height="540" width="540" src="https://cdn.arstechnica.net/wp-content/uploads/2023/12/GettyImages-1349715996-640x640.jpg">
	</p>

	<div>
		<em>Pluto nearly fills the frame in this image from the Long Range Reconnaissance </em>
	</div>

	<div>
		<em>Imager (LORRI), taken on July 13, 2015, when New Horizon was 476,000 miles </em>
	</div>

	<div>
		<em>(768,000 kilometers) from the surface.</em>
	</div>

	<div>
		<em>Heritage Space/Heritage Images via Getty Images</em>
	</div>

	<p>
		 
	</p>

	<p>
		And it’s in a spectacular location, which Lauer is taking full advantage of. “It’s awfully dark where we are now, giving us the power to do something that no one else can do. We can measure precisely how dark space itself is,” he said. Based at the National Science Foundation’s aptly named NOIRLab in Tucson, Arizona, Lauer has been measuring the background visible light in the cosmos, known as the Cosmic Optical Background (COB).
	</p>

	<p>
		 
	</p>

	<p>
		To make the measurements, Lauer’s team had the spacecraft maneuvered to keep the Sun behind it, allowing LORRI to look between the glowing Milky Way and other galaxies ahead. “Peering into the darkest areas of space, it feels like we’re taking images of the face of the Universe itself,” said Lauer, “and we’re seeing something we don’t understand.”
	</p>

	<p>
		 
	</p>

	<p>
		In 2021, his team photographed a dark patch of sky and digitally removed all known light sources in the Universe. What remained—the estimated COB—is roughly twice as bright as expected. “Our test field was far from the Milky Way, bright stars, dust clouds—anything that would wash out the fragile darkness of the Universe, yet that mysterious glow is still there. It’s like being in an empty house out in the countryside, on a clear moonless night, with all the lights turned off, and finding it’s not completely dark,” said Lauer.
	</p>

	<p>
		 
	</p>

	<p>
		The team has exhaustively examined all possible sources of light contamination—sunlight bouncing off bulkhead equipment, a CCD "dark current," a faint radioactive glow from the RTG, double-checking that there were no blinking navigation lights. “It was intense, miserable work,” said Lauer. “It’s true I’m using LORRI to do things it was never designed for. I wish we had a dark shutter to see what the camera returns when we think no light is getting in, but I did demonstrate that a zero-second exposure returns a zero signal.”
	</p>

	<p>
		 
	</p>

	<p>
		Despite all his careful checking, when Lauer wrote the paper announcing the COB anomaly, he continued to worry that the team had missed something obvious. “I felt exposed—like I was walking out of the house without my pants on!” Over the next month or so, 15 additional fields, also selected for exquisite darkness, will be measured to see if initial COB results are repeatable.
	</p>

	<p>
		 
	</p>

	<p>
		How long there will be enough power to LORRI is not currently known. ”Once heat to the instrument is shut off and it goes below a critical temperature, it’s unlikely it can ever be revived,” explained Lauer. But the Astrophysics team also has ALICE, a low-power imaging spectrograph, which the researchers are using to go after the cosmic UV background. They’re also using that instrument to make a full-sky map of Lyman-alpha emissions, the most important spectral line associated with ionized hydrogen, to give a whole-sky map of how hot and shocked the cosmos is.
	</p>

	<p>
		 
	</p>

	<p>
		One remaining uncertainty is where and when New Horizons will be able to collect critical data at a key location: upon its exit from the heliosphere. It will be at least a decade, although the exact timing is uncertain. That’s partly because, unlike the Voyager probes, New Horizons is flying close to the ecliptic—the plane of Earth’s orbit. Also, the boundary of the giant lumpy, bubble-shaped heliosphere fluctuates with the 11-year solar activity cycle. “It’s as if the whole heliosphere breathes in and out in three dimensions,” said Andrew Poppe. “Is that bubble ovoid or more of a deformed sphere? We don’t know yet.”
	</p>

	<p>
		 
	</p>

	<p>
		When it does make that epic crossing, New Horizons will be only the fifth human-made probe ever to enter the vast unknown territory of interstellar space.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Diane Hope, PhD, is a former research ecologist turned writer and audio producer. She has covered topics ranging from the nocturnal life of a research telescope operator to the culture and science behind makgeolli, Korea's most historic beverage. You can hear her adventures in sound around the world on Instagram: @inthesoundfield</em>
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/science/2023/12/squeezing-science-out-of-new-horizons-as-it-heads-out-of-the-solar-system/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20587</guid><pubDate>Tue, 12 Dec 2023 17:50:57 +0000</pubDate></item><item><title>Study: Drinking cola might not dislodge that food stuck in your throat after all</title><link>https://nsaneforums.com/news/general-news/study-drinking-cola-might-not-dislodge-that-food-stuck-in-your-throat-after-all-r20579/</link><description><![CDATA[<h3>
	The administration of cola in Dutch ERs didn't result in a higher rate of improvement.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	
	<p>
		There's always a marked increase in ER visits during the holiday season involving people getting bites of partially chewed turkey or similar foodstuffs stuck in their throat. Googling home remedies might encourage you to just sip on some cola instead, letting the carbonation help dislodge the food and sparing you an emergency endoscopy. Sure, cola is cheap and widely available, with few (if any) side effects. But you might want to think twice about skipping the ER, according to a new study published in the British Medical Journal that concluded this popular folk remedy probably doesn't help clear a blocked esophagus.
	</p>

	<p>
		 
	</p>

	<p>
		"Emergency physician Elise Tiebie, the driving force behind this project, saw online that this was really a rumor, from tip websites to Wikipedia as well as an anecdote in a British newspaper about paramedics saving a life by using cola. I've even heard doctors recommending it,” <a href="https://www.eurekalert.org/news-releases/1010160?" rel="external nofollow">said co-author Arjan Bredenoord</a>, a gastroenterologist at Amsterdam University Medical Centers. Getting food stuck in one's esophagus "can be really dangerous, so it's important that people get the correct treatment," he added. "That's why we wanted to check if this works."
	</p>

	<p>
		 
	</p>

	<p>
		The technical term is "<a href="https://en.wikipedia.org/wiki/Esophageal_food_bolus_obstruction" rel="external nofollow">esophageal food bolus obstruction</a>," more commonly known as "<a href="https://pubmed.ncbi.nlm.nih.gov/14078124/" rel="external nofollow">steakhouse syndrome</a>" or "backyard barbecue syndrome." It's usually pieces of poorly masticated meat (steak, poultry, pork) that get stuck, and when that happens, the unfortunate soul will have trouble swallowing to the point of drooling (since they can't even swallow their saliva). They may also have chest or neck pain, and there's always the chance that the esophagus will <a href="https://en.wikipedia.org/wiki/Esophageal_rupture" rel="external nofollow">be perforated</a>, leading to <a href="https://en.wikipedia.org/wiki/Aspiration_pneumonia" rel="external nofollow">aspiration into the lungs</a>. Hence, a trip to the ER is necessary.
	</p>

	<p>
		 
	</p>

	<p>
		Occasionally, the obstruction will dislodge spontaneously, but more often than not, an endoscopy is needed. In fact, it's recommended for diagnostic purposes even when the problem resolves on its own. Such blockages are usually due to potentially serious medical conditions: <a href="https://en.wikipedia.org/wiki/Schatzki_ring" rel="external nofollow">mucus rings</a> forming in the lower esophagus, <a href="https://en.wikipedia.org/wiki/Eosinophilic_esophagitis" rel="external nofollow">inflamed</a> esophageal mucosa, <a href="https://en.wikipedia.org/wiki/Tracheoesophageal_fistula" rel="external nofollow">fistula</a>, "<a href="https://en.wikipedia.org/wiki/Nutcracker_esophagus" rel="external nofollow">nutcracker esophagus</a>," and <a href="https://en.wikipedia.org/wiki/Esophageal_cancer" rel="external nofollow">esophageal cancer</a>, to name a few. There was a time when ER physicians would sometimes administer glucagon to dislodge the obstruction, but the science <a href="https://doi.org/10.1002%2Fphar.2236" rel="external nofollow">has not borne this out</a> as an effective treatment. And there is only limited evidence that medications like hyoscine butyl bromide, benzodiazepines, and opioids are effective. The use of meat tenderizer is now discouraged since it increases the risk of esophageal perforation.
	</p>

	<p>
		 
	</p>

	<p>
		The use of carbonated drinks like cola to relieve food obstructions has been around for at least 20 years, and probably longer, since cola was mentioned as an effective remedy in <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2497971/" rel="external nofollow">a 1993 paper</a> (albeit a small study involving just eight patients). Among the more recent studies is a <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6399995/" rel="external nofollow">2018 retrospective case series</a> involving chart reviews of 19 patients who wound up in the ER with esophageal obstructions and drank cola as an intervention. This worked in more than half (59 percent) of those patients. However, the authors acknowledged that the retrospective nature of their study resulted in several limitations and the risk of interpretation bias.
	</p>

	<p>
		 
	</p>

	<p>
		It's also unclear precisely how cola works to dislodge food stuck in the throat. The <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2497782/" rel="external nofollow">prevailing hypothesis</a> is that the <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3852079/" rel="external nofollow">carbonation helps</a> disintegrate the stuck food, but this was not supported by <a href="https://pubmed.ncbi.nlm.nih.gov/15533162/" rel="external nofollow">a 2004 study</a> in which cola failed to dislodge pieces of cooked chicken tightly squeezed inside graduated syringes. Alternatively, cola <a href="https://pubmed.ncbi.nlm.nih.gov/22791463/" rel="external nofollow">may help relax</a> the esophagus to help dislodge the stuck food, although the evidence for this is not yet conclusive.
	</p>

	<p>
		 
	</p>

	<p>
		Bredenoord et al. conducted a randomized controlled trial of 51 patients admitted to the ERs of five Dutch hospitals between December 2019 and June 2022. Of those, 28 were administered cola at regular intervals, while the remaining 23 waited for the obstruction to clear on its own. Endoscopies were performed if the obstruction didn't clear on its own in both groups within the prescribed amount of time.
	</p>

	<p>
		 
	</p>

	<p>
		The results: the obstructions cleared spontaneously in 61 percent of the subjects, regardless of which group they were in, so the administration of cola didn't result in a higher rate of improvement. That said, it's still a relatively small study. There were no adverse effects, so further studies administrating cola before performing endoscopies could be useful, per the authors. Follow-up endoscopies are still a good idea since, in 78 percent of those cases, there were underlying pathologies contributing to the obstruction.
	</p>

	<p>
		 
	</p>

	<p>
		British Medical Journal, 2023. DOI: <a href="http://dx.doi.org/10.1136/bmj-2023-077294" rel="external nofollow">10.1136/bmj-2023-077294</a>  (<a href="http://arstechnica.com/science/news/2010/03/dois-and-their-discontents-1.ars" rel="external nofollow">About DOIs</a>).
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/science/2023/12/study-drinking-cola-might-not-dislodge-that-food-stuck-in-your-throat-after-all/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20579</guid><pubDate>Tue, 12 Dec 2023 04:11:10 +0000</pubDate></item><item><title>Food stuck in your throat? Sipping cola won't help, study indicates</title><link>https://nsaneforums.com/news/general-news/food-stuck-in-your-throat-sipping-cola-wont-help-study-indicates-r20578/</link><description><![CDATA[<p>
	NEW YORK, Dec. 11 (UPI) -- If a piece of turkey becomes lodged in your throat this holiday season, experts recommend against trying to free it with cola -- an old wife's tale given new life through advice found on seemingly credible websites.
</p>

<p>
	 
</p>

<p>
	New research published in the Christmas issue of BMJ -- the journal of the British Medical Association -- dispels the myth that this purported remedy can help clear a blocked esophagus.
</p>

<p>
	 
</p>

<p>
	Cola is often given to patients when food gets stuck in the esophagus, the study's lead author, Dr. Arjan Bredenoord, a professor of gastroenterology at Amsterdam University Medical Centers in the Netherlands, told UPI via email.
</p>

<p>
	 
</p>

<p>
	Physicians have recommended it and patients also have tried it. Yet, "the efficacy of this approach was unknown," Bredenoord said in explaining why he undertook the study.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.upi.com/Health_News/2023/12/11/1581702325365/" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20578</guid><pubDate>Mon, 11 Dec 2023 21:42:17 +0000</pubDate></item><item><title>Millions of birds lose precious energy due to fireworks on New Year's Eve, research reveals</title><link>https://nsaneforums.com/news/general-news/millions-of-birds-lose-precious-energy-due-to-fireworks-on-new-years-eve-research-reveals-r20577/</link><description><![CDATA[<p>
	Birds are affected by the mass use of fireworks on New Year's Eve up to a distance of 10 km away. With data from weather radars and bird counts, an international team of researchers revealed how many birds take off immediately after the start of the fireworks, at what distance from fireworks this occurs, and which species groups mainly react.
</p>

<p>
	 
</p>

<p>
	"We already knew that many water birds react strongly, but now we also see the effect on other birds throughout the Netherlands," says ecologist Bart Hoekstra of the University of Amsterdam. In the journal Frontiers in Ecology and the Environment, the researchers therefore argue for large fireworks-free zones.
</p>

<p>
	 
</p>

<p>
	On New Year's Eve, an average of 1,000 times as many birds are in the air close to where fireworks are set off as on other nights, with peaks of 10,000 to 100,000 times the normal number of birds. The effects are strongest within the first 5 km of fireworks, but up to 10 km, there are still an average of at least ten times as many birds flying as normal.
</p>

<p>
	 
</p>

<p>
	"Birds take off as a result of an acute flight response due to sudden noise and light. In a country like the Netherlands, with many wintering birds, we are talking about millions of birds being affected by the lighting of fireworks," says Hoekstra.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>Weather radar and bird counts</strong></span>
</p>

<p>
	<br />
	Last year, other researchers at IBED discovered that geese are so affected by fireworks that they spend an average of 10% longer looking for food than normal during at least the next 11 days. They apparently need that time to replenish the lost energy or to compensate for the unknown foraging area in which they have ended up after fleeing from the fireworks.
</p>

<p>
	 
</p>

<p>
	Hoekstra's study looked at which species take off after fireworks and when this occurs. He used information from Royal Netherlands Meteorological Institute weather radars during both a clear New Year's Eve and on other normal nights. He combined this with distribution data from Sovon—the Dutch Centre for Field Ornithology—based on bird counts by hundreds of volunteers.
</p>

<p>
	 
</p>

<p>
	"We already knew that many water birds react strongly, but it was still unclear how birds outside these waterbodies react to fireworks. Through the counts, we know exactly where which birds are, and using the radar images, we can see where they actually take off because of fireworks." Using the data, Hoekstra was able to calculate how many birds take off immediately after the start of the fireworks, at what distance from fireworks this happens, and which species groups mainly react.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>Panic in the air</strong></span>
</p>

<p>
	<br />
	The analysis makes it clear that in the study areas around the radars in Den Helder and Herwijnen alone, almost 400,000 birds take off immediately at the start of the fireworks during New Year's Eve. Moreover, it appears that larger birds in open areas, in particular, fly around for hours after and at remarkable altitudes.
</p>

<p>
	 
</p>

<p>
	Hoekstra says, "Larger birds such as geese, ducks, and gulls fly to a height of hundreds of meters due to the large-scale discharge of fireworks and remain in the air for up to an hour. There is a risk that they will end up in bad winter weather, or that they will not know where they are flying due to panic and accidents could occur."
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>'Restrict fireworks in central areas'</strong></span>
</p>

<p>
	<br />
	Because 62% of all birds in the Netherlands live within a radius of 2.5 km of inhabited areas, the consequences of fireworks are high for all birds throughout the country.
</p>

<p>
	 
</p>

<p>
	"Flying requires a lot of energy, so ideally, birds should be disturbed as little as possible during the cold winter months. Measures to ensure this are especially important in open areas such as grasslands, where many larger birds spend the winter. The effects of fireworks on birds are less pronounced near forests and semi-open habitats. In addition, smaller birds such as tits and finches live there, which are less likely to fly away from disturbance."
</p>

<p>
	 
</p>

<p>
	The authors argue for fireworks-free zones in areas where large birds live. Hoekstra says, "These buffer zones could be smaller in areas where light and sound travel less far, such as near forests. Furthermore, fireworks should mainly be lit at central locations in built-up areas, as far away from birds as possible. It would be best for birds if we moved towards light shows without sound, such as drone shows or decorative fireworks without very loud bangs."
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://phys.org/news/2023-12-millions-birds-precious-energy-due.html" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20577</guid><pubDate>Mon, 11 Dec 2023 21:38:57 +0000</pubDate></item><item><title>Healthy plant-based diet reduces diabetes risk by 24%, finds study</title><link>https://nsaneforums.com/news/general-news/healthy-plant-based-diet-reduces-diabetes-risk-by-24-finds-study-r20576/</link><description><![CDATA[<p>
	Many type 2 diabetes cases could be avoided by adopting a healthy lifestyle. A plant-based diet has been shown to play a key role in this. As demonstrated in a study led by Tilman Kühn from MedUni Vienna's Center for Public Health, with limitations, a more plant-based diet only develops its protective effects if both consumption of animal-based foods as well as industrially processed and highly sugary foods is reduced.
</p>

<p>
	 
</p>

<p>
	For the first time, the scientists identified improvements in metabolism and liver and kidney function as reasons for the positive effects of a healthy plant-based diet, in addition to the associated lower likelihood of obesity. The study results were recently published in the journal Diabetes &amp; Metabolism.
</p>

<p>
	 
</p>

<p>
	According to analyses by the research team, a healthy plant-based diet with plenty of fresh fruit and vegetables and whole-meal products reduces the risk of diabetes by 24%, even in the presence of a genetic predisposition and other diabetes risk factors such as obesity, advanced age or a lack of physical activity. Unhealthy plant-based diets with a high proportion of sweets, refined grains and sugary drinks, on the other hand, are associated with an increased risk of type 2 diabetes.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>Key biomarkers identified</strong></span>
</p>

<p>
	<br />
	The research was carried out with 113,097 participants in the large-scale British cohort study (UK Biobank) over an observation period of 12 years.
</p>

<p>
	 
</p>

<p>
	According to their findings, the reasons behind the anti-diabetic effect of a healthy plant-based diet go far beyond the well-known lower body fat percentage and waist circumference.
</p>

<p>
	 
</p>

<p>
	"Our study is the first to identify biomarkers of central metabolic processes and organ functions as mediators of the health effects of a plant-based diet," says Tilman Kühn, Professor of Public Health Nutrition at MedUni Vienna and the University of Vienna, who led the study in close collaboration with researchers from Queen's University Belfast. The investigations confirmed that normal values for blood lipids (triglycerides), blood sugar (HbA1c), inflammatory parameters (CRP) and the insulin-like growth factor (IGF1) are associated with a low risk of diabetes.
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>Further benefits discovered</strong></span>
</p>

<p>
	 
</p>

<p>
	It has also been demonstrated how important the full function of the liver and kidneys is in diabetes prevention. Both organs play a major role in people who already have diabetes.
</p>

<p>
	 
</p>

<p>
	"However, our research has now shown that a healthy plant-based diet can improve liver and kidney function and thus reduce the risk of diabetes," says Kühn, outlining a previously underestimated benefit of a conscious plant-based diet.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://medicalxpress.com/news/2023-12-healthy-plant-based-diet-diabetes.html" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20576</guid><pubDate>Mon, 11 Dec 2023 21:36:29 +0000</pubDate></item><item><title>Humans have &#x2018;large, negative impact on wildlife,&#x2019; researchers find</title><link>https://nsaneforums.com/news/general-news/humans-have-%E2%80%98large-negative-impact-on-wildlife%E2%80%99-researchers-find-r20567/</link><description><![CDATA[<p>
	Humans are often to blame for illnesses and injuries that land animals in wildlife rehabilitation centers, a recent analysis in the journal Biological Conservation suggests. The broad-reaching study looked at animals housed in wildlife centers in the United States and Canada — and highlighted threats that humans present to over 1,000 species.
</p>

<p>
	 
</p>

<p>
	The study reviewed a data set of 674,320 digitized records from 94 wildlife centers throughout North America running from 1975 to 2019. The records contain information about all kinds of animals, but Eastern cottontail rabbits, Eastern gray squirrels, Virginia opossums, American robins and raccoons were most frequently admitted to wildlife rehab centers, although species varied by region.
</p>

<p>
	<br />
	Researchers pinpointed several leading reasons for animal injuries, including human disturbances such as collisions with vehicles, injuries and illness; predators; and poisonous substances.
</p>

<p>
	 
</p>

<p>
	Nearly 40 percent of all cases were caused by humans, and vehicle collisions were the main cause of injury, affecting 12 percent of animals admitted, the study says. Other dangers included fishing, collisions with buildings or windows, and run-ins with domesticated dogs and cats, researchers found. Reptiles suffered the highest proportion of human-caused rehab admissions.
</p>

<p>
	 
</p>

<p>
	Overall, human activities have “a large, negative impact on wildlife,” the researchers concluded.
</p>

<p>
	 
</p>

<p>
	Just 32.5 percent of animals ended up being released back into the wild, and about 9 percent were transferred to another facility or otherwise being treated; the rest died or were euthanized. More mammals were eventually released than any other type of animal.
</p>

<p>
	 
</p>

<p>
	Humans’ presence could be felt throughout the study, even in cases in which they did not directly injure the animals.
</p>

<p>
	 
</p>

<p>
	Lead poisoning and the effects of human-caused climate change also put animals in danger, with heat stress, die-offs and other issues linked to the extreme weather thought to be fueled by human activity. These factors affected different animals in different ways: For example, bald eagles were dramatically more likely to be admitted for lead poisoning than other animals, and red-tailed hawks bore the brunt of pesticide exposure.
</p>

<p>
	 
</p>

<p>
	The researchers called for wildlife centers across the continent to standardize their systems to enable more research. Overall, they write, such records are “an excellent source of data for identifying threats to wildlife health and establishing management and conservation priorities and responses.”
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.msn.com/en-us/health/other/humans-have-large-negative-impact-on-wildlife-researchers-find/ar-AA1lh582" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20567</guid><pubDate>Mon, 11 Dec 2023 17:13:07 +0000</pubDate></item><item><title>Daily Telescope: Hubble images a dazzling star cluster 158,000 light-years away</title><link>https://nsaneforums.com/news/general-news/daily-telescope-hubble-images-a-dazzling-star-cluster-158000-light-years-away-r20564/</link><description><![CDATA[<h3>
	It is thousands of times more dense than our corner of the Milky Way Galaxy.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="Cluster_in_the_Cloud_pillars-800x544.jpg" class="ipsImage" data-ratio="75.10" height="489" width="720" src="https://cdn.arstechnica.net/wp-content/uploads/2023/12/Cluster_in_the_Cloud_pillars-800x544.jpg">
	</p>

	<div>
		<em>This striking image shows the densely packed globular cluster known as NGC 2210, which is situated in the Large Magellanic Cloud.</em>
	</div>

	<div>
		<em>ESA/Hubble &amp; NASA, A. Sarajedini, F. Niederhofer</em>
	</div>

	<p>
		 
	</p>

	<div class="article-intro">
		Welcome to the <a href="https://arstechnica.com/tag/daily-telescope/" rel="external nofollow">Daily Telescope</a>. There is a little too much darkness in this world and not enough light, a little too much pseudoscience and not enough science. We'll let other publications offer you a daily horoscope. At Ars Technica, we're going to take a different route, finding inspiration from very real images of a universe that is filled with stars and wonder.
	</div>
	

	<p>
		 
	</p>

	<p>
		Good morning. It's December 11, and today's photograph takes us to the Large Magellanic Cloud, which is one of the very nearest galaxies to our own and lies about 158,000 light-years away.
	</p>

	<p>
		 
	</p>

	<p>
		This Hubble Space Telescope image showcases a brilliant globular cluster within the Large Magellanic Cloud. Such clusters are tightly bound and gravitationally stable, meaning millions of stars persist in a (relatively) tightly confined space for billions of years. This makes them an attractive target for astronomers seeking to study older stars.
	</p>

	<p>
		 
	</p>

	<p>
		This cluster, known as NGC 2210, was discovered by astronomer John Herschel nearly two centuries ago. It is <a href="https://academic.oup.com/mnras/article/471/3/3347/3930867?login=false#95084053" rel="external nofollow">believed to be</a> about 11.6 billion years old.
	</p>

	<p>
		 
	</p>

	<p>
		Frankly, this gorgeous image amazes me because you have so many stars, big and small, clustered so tightly together—it is thousands of times more dense than our corner of the Milky Way Galaxy. The nighttime sky would be rather bright were Earth situated there. This image is also a testament to the observing power of the Hubble Space Telescope, which captures the Large Magellanic Cloud's incredible scope and grandeur.
	</p>

	<p>
		 
	</p>

	<p>
		<em>Source: ESA/Hubble &amp; NASA, A. Sarajedini, F. Niederhofer</em>
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/space/2023/12/daily-telescope-a-brilliant-cluster-of-stars-in-a-nearby-galaxy/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20564</guid><pubDate>Mon, 11 Dec 2023 17:06:40 +0000</pubDate></item><item><title>Why scientists are making transparent wood</title><link>https://nsaneforums.com/news/general-news/why-scientists-are-making-transparent-wood-r20546/</link><description><![CDATA[<h3>
	The material is being exploited for smartphone screens, insulated windows, and more.
</h3>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		<img alt="media_transparent-wood-1600x600-1-800x30" class="ipsImage" data-ratio="41.67" height="270" width="720" src="https://cdn.arstechnica.net/wp-content/uploads/2023/12/media_transparent-wood-1600x600-1-800x300.jpg">
	</p>

	<div>
		<em>See-through wood has a number of interesting properties that researchers hope to exploit.</em>
	</div>

	<div>
		<em>WILEY‐VCH VERLAG GMBH &amp; CO. KGAA, WEINHEIM</em>
	</div>

	<p>
		 
	</p>
	

	<div class="article-content">
		<p>
			Thirty years ago, a botanist in Germany had a simple wish: to see the inner workings of woody plants without dissecting them. By bleaching away the pigments in plant cells, Siegfried Fink managed to <a href="https://www.degruyter.com/document/doi/10.1515/hfsg.1992.46.5.403/html" rel="external nofollow" target="_blank">create transparent wood</a>, and he published his technique in a niche wood technology journal. The 1992 paper remained the last word on see-through wood for more than a decade, until a researcher named Lars Berglund stumbled across it.
		</p>

		<p>
			 
		</p>

		<p>
			Berglund was inspired by Fink’s discovery, but not for botanical reasons. The materials scientist, who works at KTH Royal Institute of Technology in Sweden, specializes in polymer composites and was interested in creating a more robust alternative to transparent plastic. And he wasn’t the only one interested in wood’s virtues. Across the ocean, researchers at the University of Maryland were busy on a related goal: harnessing the strength of wood for nontraditional purposes.
		</p>

		<p>
			 
		</p>

		<p>
			Now, after years of experiments, the research of these groups is starting to bear fruit. Transparent wood could soon find uses in super-strong screens for smartphones; in soft, glowing light fixtures; and even as structural features, such as colour-changing windows.
		</p>

		<p>
			 
		</p>

		<p>
			“I truly believe this material has a promising future,” says Qiliang Fu, a wood nanotechnologist at Nanjing Forestry University in China who worked in Berglund’s lab as a graduate student.
		</p>

		<p>
			 
		</p>

		<p>
			Wood is made up of countless little vertical channels, like a tight bundle of straws bound together with glue. These tube-shaped cells transport water and nutrients throughout <a href="https://knowablemagazine.org/article/living-world/2018/what-makes-tree-tree" rel="external nofollow" target="_blank">a tree</a>, and when the tree is harvested and the moisture evaporates, pockets of air are left behind. To create see-through wood, scientists first need to modify or get rid of the glue, called lignin, that holds the cell bundles together and provides trunks and branches with most of their earthy brown hues. After bleaching lignin’s colour away or otherwise removing it, a milky-white skeleton of hollow cells remains.
		</p>

		<p>
			 
		</p>

		<p>
			This skeleton is still opaque, because the cell walls bend light to a different degree than the air in the cell pockets does—a value called a refractive index. Filling the air pockets with a substance like epoxy resin that bends light to a similar degree to the cell walls renders the wood transparent.
		</p>

		<p>
			 
		</p>

		<p>
			The material the scientists worked with is thin—typically less than a millimeter to around a centimeter thick. But the cells create a sturdy honeycomb structure, and the tiny wood fibres are stronger than the best carbon fibres, says materials scientist Liangbing Hu, who leads the research group working on transparent wood at the University of Maryland in College Park. And with the resin added, transparent wood outperforms plastic and glass: In tests measuring how easily materials fracture or break under pressure, transparent wood came out around three times stronger than transparent plastics like Plexiglass and about 10 times tougher than glass.
		</p>

		<p>
			 
		</p>

		<p>
			“The results are amazing, that a piece of wood can be as strong as glass,” says Hu, who highlighted the <a href="https://www.annualreviews.org/doi/10.1146/annurev-matsci-010622-105440" rel="external nofollow" target="_blank">features of transparent wood</a> in the 2023 Annual Review of Materials Research.
		</p>

		<p>
			 
		</p>

		<p>
			The process also works with thicker wood but the view through that substance is hazier because it scatters more light. In their original studies from 2016, Hu and Berglund both found that millimeter-thin sheets of the resin-filled wood skeletons let through 80 to 90 percent of light. As the thickness gets closer to a centimeter, light transmittance drops: Berglund’s group reported that 3.7-millimeter-thick wood—roughly two pennies thick—transmitted only 40 percent of light.
		</p>

		<p>
			 
		</p>

		<p>
			The slim profile and strength of the material means it could be a great alternative to products made from thin, easily shattered cuts of plastic or glass, such as display screens. The French company Woodoo, for example, uses a similar lignin-removing process in its wood screens, but leaves a bit of lignin to create a different colour aesthetic. The company is tailoring its recyclable, touch-sensitive digital displays for products, including car dashboards and advertising billboards.
		</p>

		<p>
			 
		</p>

		<p>
			But most research has centered on transparent wood as an architectural feature, with windows a particularly promising use, says Prodyut Dhar, a biochemical engineer at the Indian Institute of Technology Varanasi. Transparent wood is a far better insulator than glass, so it could help buildings retain heat or keep it out. Hu and colleagues have also used polyvinyl alcohol, or PVA—a polymer used in glue and food packaging—to infiltrate the wood skeletons, making transparent wood that conducts heat at a rate <a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201907511" rel="external nofollow" target="_blank">five times lower than that of glass,</a> the team reported in 2019 in Advanced Functional Materials.
		</p>

		<p>
			 
		</p>
	</div>
</div>

<div class="article-content post-page" itemprop="articleBody">
	<p>
		And researchers are coming up with other tweaks to increase wood’s ability to hold or release heat, which would be useful for energy-efficient buildings. Céline Montanari, a materials scientist at RISE Research Institutes of Sweden, and colleagues experimented with phase-change materials, which flip from storing to releasing heat when they change from solid to liquid, or vice-versa. By incorporating polyethylene glycol, for example, the scientists found that their wood could store heat when it was warm and release heat as it cooled, work they published in ACS Applied Materials and Interfaces In 2019.
	</p>

	<p>
		 
	</p>

	<p>
		Transparent wood windows would therefore be stronger and aid in temperature control better than traditional glass, but the view through them would be hazy, more similar to frosted glass than a regular window. However, the haziness could be an advantage if users want diffuse light: Since thicker wood is strong, it could be a partially load-bearing light source, Berglund says, potentially acting as a ceiling that provides soft, ambient light to a room.
	</p>

	<p>
		 
	</p>

	<p>
		Hu and Berglund have continued to toy with ways to bestow new properties on transparent wood. Around five years ago, Berglund and colleagues at KTH and Georgia Institute of Technology found they could mimic <a href="https://knowablemagazine.org/article/technology/2022/how-smart-windows-save-energy" rel="external nofollow" target="_blank">smart windows</a>, which can switch from transparent to tinted to block visibility or the Sun’s rays. The researchers sandwiched an electrochromic polymer—a substance that can change color with electricity—between layers of transparent wood coated with an electrode polymer to conduct electricity. This created <a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.201702026" rel="external nofollow" target="_blank">a pane of wood that changes</a> from clear to magenta when users run a small electrical current through it.
	</p>

	<p>
		 
	</p>

	<p>
		More recently, the two groups have shifted their attention to improving the sustainability of transparent wood production. For example, the resin used to fill the wood scaffolding is typically a petroleum-derived plastic product, so it’s better to avoid using it, Montanari says. As a replacement, she and colleagues invented a fully bio-based polymer <a href="https://onlinelibrary.wiley.com/doi/full/10.1002/advs.202100559" rel="external nofollow" target="_blank">derived from citrus peels.</a> The team first combined acrylic acid and limonene, a chemical extracted from lemon and orange rinds that’s found in essential oils. Then they impregnated delignified wood with it. Even with a fruity filling, the bio-based transparent wood maintained its mechanical and optical properties, withstanding around 30 megapascals of pressure more than regular wood and transmitting around 90 percent of light, the researchers reported in 2021 in Advanced Science.
	</p>

	<p>
		 
	</p>

	<p>
		Hu’s lab, meanwhile, recently reported in Science Advances a <a href="https://www.science.org/doi/10.1126/sciadv.abd7342" rel="external nofollow" target="_blank">greener lignin-bleaching method</a> that leans on hydrogen peroxide and UV radiation, further reducing the energy demands of production. The team brushed wood slices ranging from about 0.5 to 3.5 millimeters in thickness with hydrogen peroxide, then left them in front of UV lamps to mimic the Sun’s rays. The UV bleached away the pigment-containing parts of lignin but left the structural parts intact, thus helping to retain more strength in the wood.
	</p>

	<p>
		 
	</p>

	<p>
		These more environmentally friendly approaches help limit the amount of toxic chemicals and fossil-based polymers used in production, but for now, glass still has lower end-of-life environmental impacts than transparent wood, according to an analysis by Dhar and colleagues in Science of the Total Environment. Embracing greener production schemes and scaling up manufacturing are two steps necessary to add transparent wood to mainstream markets, researchers say, but it will take time. However, they are confident it can be done and believe in its potential as a sustainable material.
	</p>

	<p>
		 
	</p>

	<p>
		“When you’re trying to achieve sustainability, you don’t only want to match the properties of fossil-based materials,” Montanari says. “As a scientist, I want to surpass this.”
	</p>

	<p>
		 
	</p>

	<p>
		<em><b>Jude Coleman</b> is an Oregon-based freelance journalist who covers ecology, climate change, and the environment. Read more of her work at <a href="https://www.judecoleman.com/" rel="external nofollow" target="_blank">judecoleman.com</a>. This article originally appeared in <a href="https://www.knowablemagazine.org/" rel="external nofollow">Knowable Magazine</a>, an independent journalistic endeavor from Annual Reviews. Sign up for the <a href="https://www.knowablemagazine.org/page/newsletter-signup" rel="external nofollow">newsletter</a>.</em>
	</p>

	<p>
		 
	</p>

	<p>
		<img alt="Knowable Magazine | Annual Reviews" style="height: 40px;" src="https://www.knowablemagazine.org/assets/images/logo-k.svg">
	</p>

	<p>
		 
	</p>
</div>

<p>
	<a href="https://arstechnica.com/science/2023/12/why-scientists-are-making-transparent-wood/" rel="external nofollow">Source</a>
</p>
]]></description><guid isPermaLink="false">20546</guid><pubDate>Sun, 10 Dec 2023 17:07:57 +0000</pubDate></item><item><title>Canada's surging cost of living fuels reverse immigration</title><link>https://nsaneforums.com/news/general-news/canadas-surging-cost-of-living-fuels-reverse-immigration-r20545/</link><description><![CDATA[<p>
	TORONTO (Reuters) - The dream of making it big in Canada is turning into a battle for survival for many immigrants due to the high cost of living and rental shortages, as rising emigration numbers hint at newcomers being forced to turn their back on a country that they chose to make their adopted home.
</p>

<p>
	 
</p>

<p>
	Prime Minister Justin Trudeau has made immigration his main weapon to blunt Canada's big challenge of an aging and slowing population, and it has also helped fuel economic growth. That drove Canada's population up at its fastest clip in more than six decades this year, Statistics Canada said.
</p>

<p>
	 
</p>

<p>
	But now a reversal of that trend is gradually taking hold. In the first six months of 2023 some 42,000 individuals departed Canada, adding to 93,818 people who left in 2022 and 85,927 exits in 2021, official data show.
</p>

<p>
	 
</p>

<p>
	The rate of immigrants leaving Canada hit a two-decade high in 2019, according to a recent report from the Institute for Canadian Citizenship (ICC), an immigration advocacy group. While the numbers went down during pandemic lockdowns, Statistics Canada data shows it is once again rising.
</p>

<p>
	 
</p>

<p>
	While that is a fraction of the 263,000 who came to the country over the same period, a steady rise in emigration is making some observers wary.
</p>

<p>
	 
</p>

<p>
	For a nation built on immigrants, a rising trend of people leaving Canada risks undermining one of Prime Minister Justin Trudeau government's signature policies, which granted permanent residency to a record 2.5 million people in just eight years.
</p>

<p>
	 
</p>

<p>
	Reuters spoke with a half a dozen people who have either left the country or are preparing to do so, because of the high cost of living.
</p>

<p>
	 
</p>

<p>
	Cara, 25, who came to Canada in 2022 as a refugee from Hong Kong, now pays C$650 ($474) in monthly rent for a single-room basement apartment in Scarborough in eastern Toronto, which is about 30% of her monthly take-home salary.
</p>

<p>
	 
</p>

<p>
	"I never realized that living in a Western country, you can only afford renting a room in the basement," she said. She declined to give her real name because she fled Hong Kong after participating in the 2019 protests triggered by a now-abandoned extradition bill.
</p>

<p>
	 
</p>

<p>
	Cara works three part-time jobs, making Ontario's minimum wage of C$16.55 per hour, and goes to an adult learning school to earn university credits.
</p>

<p>
	 
</p>

<p>
	"I almost use every single penny," she said, while in Hong Kong she was able to save about a third of her monthly salary.
</p>

<p>
	 
</p>

<p>
	To be sure, emigration as a percentage of Canada's overall population touched a high of 0.2% in the mid 1990s, and currently stands at about 0.09%, according to official government data.
</p>

<p>
	 
</p>

<p>
	While the numbers are small now, lawyers and immigration consultants warn that a pick-up could cast a shroud over Canada's appeal as the one of the favoured destinations for newcomers.
</p>

<p>
	 
</p>

<p>
	"There's a real importance in creating positive experiences in those early years" so that people decide to stay, said Daniel Bernhard, CEO of ICC.
</p>

<p>
	Immigrants blame the sky-rocketing housing costs as the biggest reason for their decision to consider a new country.
</p>

<p>
	 
</p>

<p>
	On average in Canada about 60% of household income would be needed to cover home ownership costs, a figure that rises to about 98% for Vancouver and 80% for Toronto, RBC said in a September report.
</p>

<p>
	 
</p>

<p>
	Myo Maung, 55, migrated to Canada from Myanmar over three decades ago and made a successful career as a real estate agent and a restaurateur.
</p>

<p>
	 
</p>

<p>
	But he plans to retire in a country like Thailand since he cannot see himself maintaining his living standard in Canada on his retirement income.
</p>

<p>
	 
</p>

<p>
	Phil Triadafilopoulos, a political science professor specializing in immigration at the University of Toronto (UofT), said rapid immigration is exacerbating the housing shortage.
</p>

<p>
	 
</p>

<p>
	"It's not surprising then that people who have options... either go to another country or go back home having had a taste of the situation in Canada," Triadafilopoulos said.
</p>

<p>
	 
</p>

<p>
	Last month Trudeau's government capped its target for new residents at a half million per year from 2025 onwards to ease pressure on the housing market.
</p>

<p>
	 
</p>

<p>
	But for some it is too little too late.
</p>

<p>
	 
</p>

<p>
	Justinas Stankus, 38, who came to Canada from Lithuania in 2019 to pursue a doctorate in political science at the UofT is considering relocating to Southeast Asia where the cost of living is lower and where he could still pursue his research.
</p>

<p>
	 
</p>

<p>
	Stankus, who pays C$2,000, including utilities, for a one-bedroom apartment, said increasing living expenses has made it difficult to afford basic necessities.
</p>

<p>
	 
</p>

<p>
	"With a graduate student's budget, it is not sustainable," Stankus said.
</p>

<p>
	 
</p>

<p>
	Cara from Hong Kong says she feels trapped and wants to go. "Whenever I get a chance to leave, I will take the chance."
</p>

<p>
	 
</p>

<p>
	($1 = 1.3718 Canadian dollars)
</p>

<p>
	 
</p>

<p>
	(This story has been corrected to address Canada Prime Minister Justin Trudeau by his full name and title, and to add that Scarborough is part of Toronto in paragraph 9)
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://finance.yahoo.com/news/canadas-surging-cost-living-fuels-110338281.html" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20545</guid><pubDate>Sun, 10 Dec 2023 14:58:51 +0000</pubDate></item><item><title>What happens in your body during a fever?</title><link>https://nsaneforums.com/news/general-news/what-happens-in-your-body-during-a-fever-r20544/</link><description><![CDATA[<p>
	<span style="font-size:22px;">People often experience fevers when they get sick. But what is going on in your body as your temperature spikes?</span>
</p>

<p>
	 
</p>

<p>
	You wake up in the middle of the night, shivering. You're experiencing a fever — a temporary spike in body temperature. 
</p>

<p>
	 
</p>

<p>
	Fevers can arise as the body's defense system fights off an infection, but they can also be triggered by other things, including autoimmune diseases such as rheumatoid arthritis, or occur as a side effect of certain drugs.
</p>

<p>
	 
</p>

<p>
	But what happens in the body during a fever?
</p>

<p>
	 
</p>

<p>
	Human body temperature varies slightly from day to day and from person to person, but it's normally maintained at around 98.6 degrees Fahrenheit (37 degrees Celsius). This creates the perfect environment for our cells to work efficiently. Part of the brain called the hypothalamus acts like a thermostat, constantly monitoring the body's temperature and turning internal dials to rein it back to roughly 98.6 F. 
</p>

<p>
	 
</p>

<p>
	During an infection, when our immune cells detect foreign invaders such as bacteria or viruses, they release fever-inducing chemicals called pyrogens. These chemicals travel to the brain, where they act on temperature-sensitive neurons in the hypothalamus, essentially telling it that it's time to raise the temperature in the house, Dr. Paul O'Rourke, an assistant professor of medicine at Johns Hopkins University, told Live Science. 
</p>

<p>
	 
</p>

<p>
	As a result, these neurons release hormone-like substances called prostaglandins — specifically, one called PGE2 — to twist the dial on the body's thermostat and initiate a fever. 
</p>

<p>
	 
</p>

<p>
	"We typically consider a fever when you're reaching temperatures greater than 38 degrees Celsius [100.4 F]," O'Rourke said. 
</p>

<p>
	 
</p>

<p>
	The hypothalamus can raise body temperature in several ways. For instance, it directs blood vessels to constrict, which reduces the amount of heat that dissipates through the surface of the skin. It also induces shivering to generate as much heat as possible. 
</p>

<p>
	 
</p>

<p>
	These physiological processes collectively form part of the body's first line of defense against infection, known as acute inflammation. The main aim being to bring infection under control and stop it from spreading. 
</p>

<p>
	 
</p>

<p>
	Paradoxically, people may have chills alongside a fever, even though their body temperature is rising. This is because the hypothalamus has temporarily increased the body's internal thermostat to a higher "normal" level. As your body tries to reach this new baseline, you feel comparatively cold. 
</p>

<p>
	 
</p>

<p>
	So why does the body need the heat?
</p>

<p>
	 
</p>

<p>
	One possible reason is to make it harder for bacteria or viruses to replicate and infect our cells, O'Rourke said. A higher body temperature may also turn the immune system into a better "fighting machine," he said. For example, when our body temperature rises, cells produce heat shock proteins (HSPs), which activate immune pathways to fight off infection. HSPs are normally upregulated by cells during inflammation, as the body strives to protect itself against foreign invaders. 
</p>

<p>
	 
</p>

<p>
	"For your average older child or adult, you may experience a degree of fever for a few days, certainly two or three days, without necessarily needing to get a lot of medical attention," Dr. Kitty O'Hare, a consulting associate in the Department of Medicine at Duke University, told Live Science. 
</p>

<p>
	 
</p>

<p>
	But if you are concerned about your symptoms or they don't seem to be improving, you should contact your healthcare provider, she said. 
</p>

<p>
	 
</p>

<p>
	Sometimes when children get a high fever, for instance, they can experience convulsions called febrile seizures. Although these may be frightening, they generally last only a few minutes and are usually harmless. Nevertheless, parents should call their healthcare provider anytime their child has a seizure, even if it is during a fever, O'Hare said. 
</p>

<p>
	 
</p>

<p>
	The degree of fever also matters, O'Hare said. "It's good to get advice from your own health care provider based on your health history on how much of a fever would be problematic for you," she said. 
</p>

<p>
	 
</p>

<p>
	Depending on your age, an over-the-counter medication such as acetaminophen or ibuprofen can help alleviate the symptoms of fever. Removing a layer of clothing, taking a cold bath and drinking cool liquids can also help the fever to improve, she said. 
</p>

<p>
	 
</p>

<p>
	Increasing your body temperature during a fever takes a lot of effort — for every 1.8 F [1 C] increase in body temperature, you expend an additional 10% more energy than you would normally use to maintain your temperature. So it is important to stay well rested, O'Rourke said. 
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.livescience.com/health/viruses-infections-disease/what-happens-in-your-body-during-a-fever" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20544</guid><pubDate>Sun, 10 Dec 2023 14:22:26 +0000</pubDate></item><item><title>Hidden Impacts of Ferocious Volcanic Eruption Finally Revealed</title><link>https://nsaneforums.com/news/general-news/hidden-impacts-of-ferocious-volcanic-eruption-finally-revealed-r20543/</link><description><![CDATA[<p>
	Undersea volcanic eruptions account for more than three-quarters of all volcanism on Earth, but rarely do we see the impacts.
</p>

<p>
	 
</p>

<p>
	The Hunga Tonga-Hunga Ha'apai eruption of 2022 was a dramatic exception. Its furious explosion from shallow waters broke the ocean surface and punched through the stratosphere, generating supercharged lighting and an atmospheric shock wave that circled the globe several times.
</p>

<p>
	 
</p>

<p>
	But there was far more to the fallout than satellite images could possibly capture or observers could report.
</p>

<p>
	 
</p>

<p>
	We know the human toll this explosion took, but now a new study investigating the underwater impacts of the Hunga-Tonga eruption has detailed just how ferociously the explosion tore open the seafloor, ripped up undersea cables, and smothered marine life.
</p>

<p>
	 
</p>

<p>
	"The eruption causes dramatic changes to nutrient and oxygen levels in the water which could have feedbacks that we are yet to understand," says first author Sarah Seabrook, a marine biogeochemist at the New Zealand National Institute of Water and Atmospheric Research.
</p>

<p>
	 
</p>

<p>
	Based in New Zealand, a country closely acquainted with undersea volcanoes, Seabrook and her colleagues compared seafloor mapping surveys conducted three months after the January 2022 eruption with data collected from the same area between 2015 and 2017.
</p>

<p>
	 
</p>

<p>
	"While ocean impacts resulting from volcanic eruptions are typically hidden from view," the researchers write in their paper, "we show they can have major consequences, including widespread loss of marine life and damage to critical seafloor telecommunication links, with knock-on socioeconomic impacts."
</p>

<p>
	 
</p>

<p>
	The team also compiled a trove of data from ship-based sonar, sediment cores, geochemical analyses, water column samples, and video footage to chart the devastatingly powerful upheaval.
</p>

<p>
	 
</p>

<p>
	"No such data previously existed for an event on the scale of the 2022 Hunga volcano eruption," Seabrook and colleagues write.
</p>

<p>
	 
</p>

<p>
	"Most submerged volcanoes are poorly mapped," they add, describing the underwater impacts of shallow-water volcanoes near populated islands as a "major blind spot" in risk assessment and preparedness.
</p>

<p>
	 
</p>

<p>
	Their analyses show at least 6 cubic kilometers (km3) of seafloor was lost from within the caldera – 20 times the eruptive volume of the 1980 Mount St. Helens eruption – and an additional 3.5 km3 of material was blasted out of the Hunga volcano's submerged flanks.
</p>

<p>
	 
</p>

<p>
	To put that in perspective, previous studies of the Hunga Tonga-Hunga Ha'apai eruption estimated that 1.9 km3 (or 2,900 megatonnes) of material was ejected into the atmosphere.
</p>

<p>
	 
</p>

<p>
	That leaves roughly four-fifths of the ejected material in the ocean; material that was funneled into fast-moving density flows that scoured out tracks 30 meters deep in the seafloor and accumulated 22 meters (72 feet) thick in some places.
</p>

<p>
	 
</p>

<div class="ipsEmbeddedVideo" contenteditable="false">
	<div>
		<iframe allowfullscreen="" frameborder="0" height="113" src="https://www.youtube-nocookie.com/embed/xYhCEeIO25k?feature=oembed" title="Tonga eruption and tsunami shock the world" width="200"></iframe>
	</div>
</div>

<p>
	 
</p>

<p>
	Video footage showed much of the seafloor near the caldera was devoid of marine life or smothered in ashfall three months after the eruption.
</p>

<p>
	 
</p>

<p>
	But some wildlife refugia were discovered on nearby seamounts where the topography had protected animals from the outward blast. These refugia may aid the recovery of seafloor communities, although the researchers expect the recovery to be slow.
</p>

<p>
	 
</p>

<p>
	Very fine volcanic ash was found to be muddying the water column at depths of 200 meters (655 feet) up to 20 kilometers from the caldera. If those plumes persist, it could have as-yet unknown impacts on food security for Pacific Island nations.
</p>

<p>
	 
</p>

<p>
	"Future monitoring, of both the volcanic edifice itself and the surrounding seafloor and habitats, is necessary to robustly determine the resilience and recovery of both human and natural systems to major submarine eruptions," says Seabrook.
</p>

<p>
	 
</p>

<p>
	"It will also help more broadly assess the risks posed by the many similar submerged volcanoes that exist worldwide."
</p>

<p>
	 
</p>

<p>
	In 2012, scientists nearly missed the largest deep-ocean eruption in recorded history. The blast erupted out of the previously little-known Havre Seamount in the Kermadec Islands that arc northward of New Zealand towards Tonga.
</p>

<p>
	 
</p>

<p>
	At least we've got our eye on these two now, but there are an estimated 100,000 uncharted undersea volcanoes still out there in the abyss.
</p>

<p>
	 
</p>

<p>
	The study has been published in <span style="color:#2980b9;"><em>Nature Communications</em></span>.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.sciencealert.com/hidden-impacts-of-ferocious-volcanic-eruption-finally-revealed" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20543</guid><pubDate>Sun, 10 Dec 2023 13:48:32 +0000</pubDate></item><item><title>An old Apple check signed by Steve Jobs has been sold for $46,000</title><link>https://nsaneforums.com/news/general-news/an-old-apple-check-signed-by-steve-jobs-has-been-sold-for-46000-r20541/</link><description><![CDATA[<p>
	An old Apple Computer Company check signed by its late co-founder Steve Jobs was sold in an auction for a whopping $46,063. RRAuction conducted the bidding of the old collectible and initially estimated the check to sell for over $25,000.
</p>

<p>
	 
</p>

<p>
	The check issued by the Wells Fargo Bank was dated July 23, 1976, around three months Apple after was founded, and it was payable to Radio Shack for $4.01. In the address field, it mentions the location of an answering machine and mail drop service which Jobs and Wozniak used at the time when they operated from Jobs' family garage.
</p>

<p>
	 
</p>

<p style="text-align:center;">
	<img alt="1702147096_steve_jobs_old_check_radio_sh" class="ipsImage" data-ratio="75.10" height="382" width="720" src="https://cdn.neowin.com/news/images/uploaded/2023/12/1702147096_steve_jobs_old_check_radio_shack.jpg" />
</p>

<p style="text-align:center;">
	 
</p>

<p>
	1976 was the same year when Apple released its first product: Apple 1. The computer was initially intended as a kit to be soldered and assembled by the end user. But The Byte Shop owner Paul Terrell offered to buy 50 units of Apple 1, for $500 each, if it was delivered as a finished product.
</p>

<p>
	 
</p>

<p>
	Radio Shack played a significant role in the duo's history. The American retail chain was the place where Steve Wozniak purchased the TRS-80 Micro Computer System he used to build the 'blue box' that facilitated illegal long-distance calls.
</p>

<p>
	 
</p>

<p>
	Jobs and Wozniak managed to sell around 200 such boxes for $150 each and the partnership laid the foundation stone of a computer company now known as Apple Inc. The check signed in 1976 may have sold for thousands of dollars in 2023, but it's still less than half of the selling price of another check Jobs wrote in the same year.
</p>

<p>
	 
</p>

<p>
	One common thing is both the checks were signed by Jobs as "Steven Jobs." Nonetheless, it adds to the list of Apple memorabilia which includes a hard to find sealed 4GB original iPhone, an 8GB iPhone 1 that sold for $63,000, and one with a "Lucky You" sticker that managed to sell for $40,320.
</p>

<p>
	 
</p>

<p>
	The Steve Jobs Archive published a free memoir on the life of the late Apple co-founder earlier this year. It's a digital e-book that includes Jobs' past speeches, interviews, emails, some rarely-seen internal meeting transcripts, and childhood photos.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.neowin.net/news/an-old-apple-check-signed-by-steve-jobs-has-been-sold-for-46000/" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20541</guid><pubDate>Sat, 09 Dec 2023 20:50:36 +0000</pubDate></item><item><title>Sri Lanka experiences a temporary power outage after a main transmission line fails</title><link>https://nsaneforums.com/news/general-news/sri-lanka-experiences-a-temporary-power-outage-after-a-main-transmission-line-fails-r20540/</link><description><![CDATA[<p>
	COLOMBO, Sri Lanka — Sri Lanka experienced an island-wide power outage for several hours Saturday after a system failure in one of the main transmission lines, the country’s power and energy ministry said.
</p>

<p>
	 
</p>

<p>
	The power outage began Saturday evening and continued for several hours.
</p>

<p>
	 
</p>

<p>
	“Step by step restorations are underway and it may take few hours to completely restore the power supply,” said the ministry in a statement.
</p>

<p>
	 
</p>

<p>
	Sri Lanka largely depends on hydro power for power generation, while coal and oil are used to cover the balance. During the dry season, the country is compelled to use more thermal power for generation of electricity.
</p>

<p>
	 
</p>

<p>
	Sri Lanka experienced several hours of daily power cuts last year for several months due to plunging water levels powering hydroelectric dams. The power crisis worsened as Sri Lanka faced difficulty in importing sufficient stocks of oil and coal after the country’s foreign reserves were depleted during an unprecedented economic crisis.
</p>

<p>
	 
</p>

<p>
	Sri Lanka plunged into am economic crisis in 2022, creating severe shortages and drawing strident protests that led to the ouster of then-President Gotabaya Rajapaksa. It declared bankruptcy in April 2022 with more than $83 billion in debt - more than half of it to foreign creditors.
</p>

<p>
	 
</p>

<p>
	Under new President Ranil Wickremesinghe, a continuous power supply has been restored. But there has been growing public dissatisfaction with the government’s efforts to increase revenue by raising electricity rates and imposing heavy new income taxes on professionals and businesses.
</p>

<p>
	Sri Lanka has sought the support of the International Monetary Fund to rescue the economy.
</p>

<p>
	 
</p>

<p>
	The IMF agreed in March to a $2.9 billion bailout package, releasing the first payment shortly thereafter. However, the IMF delayed the second tranche, citing inadequate oversight and debt restructuring.
</p>

<p>
	 
</p>

<p>
	An IMF review in September said Sri Lanka’s economy was recovering but the country needed to improve its tax administration, eliminate exemptions and crack down on tax evasion.
</p>

<p>
	 
</p>

<p>
	Sri Lankan government officials have expressed confidence over the last two weeks that the IMF would provide the $334 million installment before the end of the year since the island nation received required financial assurances from its bilateral creditors, including China, Japan and India.
</p>

<p>
	 
</p>

<p>
	Copyright © 2023 The Washington Times, LLC.
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.washingtontimes.com/news/2023/dec/9/sri-lanka-experiences-temporary-power-outage-after/" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20540</guid><pubDate>Sat, 09 Dec 2023 20:19:39 +0000</pubDate></item><item><title>The planet is warming so fast, it could cross a key climate limit in 2024</title><link>https://nsaneforums.com/news/general-news/the-planet-is-warming-so-fast-it-could-cross-a-key-climate-limit-in-2024-r20539/</link><description><![CDATA[<p>
	<span style="font-size:22px;">New research shows the planet on track to top a warming benchmark next year. Many at COP28 remain hopeful the world can avoid that threshold.</span>
</p>

<p>
	 
</p>

<p>
	DUBAI — Global temperatures are poised to surpass a key climate threshold many thought was still years away — so quickly that some climate activists and scientists say world leaders should give up on the pretense they can still prevent disastrous levels of warming.
</p>

<p>
	 
</p>

<p>
	The United Kingdom’s Met office on Thursday warned that next year’s average global temperature could breach a key planetary warming benchmark: 1.5 degrees Celsius (2.7 degrees Fahrenheit) above preindustrial levels. While it would not mark a permanent crossing of that barrier — natural fluctuations could make temperatures dip back below it the following year — remaining above it over a longer period of time would induce catastrophic sea level rise and make extreme heat a threat to life for 2 billion people. This year, the planet is on its brink.
</p>

<p>
	 
</p>

<p>
	And yet, as global leaders start their second week of talks at the U.N. Climate Change Conference in Dubai, the 1.5C warming target, which nations adopted in Paris in 2015, remains central.
</p>

<p>
	 
</p>

<p>
	“Yes, you must make compromises. But not on 1.5 degrees,” Simon Stiell, executive secretary of the U.N. Framework Convention on Climate Change, said Friday. U.S. climate envoy John F. Kerry called it a “critical guidepost.” The president of this year’s climate summit, Sultan Al Jaber of the United Arab Emirates, called it his “North Star,” meanwhile downplaying how dramatically humans would need to curtail fossil fuel to achieve it.
</p>

<p>
	 
</p>

<p>
	Others now deem the goal little more than wishful thinking.
</p>

<p>
	 
</p>

<p>
	Glen Peters, a senior researcher at the Cicero Center for International Climate Research in Norway, called it “increasingly embarrassing” to say the 1.5C goal is still within reach. Famed climate scientist James Hansen recently called 1.5 “deader than a doornail” and on Friday said anyone who claims otherwise is “lying.”
</p>

<p>
	 
</p>

<p>
	It “now looks inevitable” that global warming will surge past the 1.5C mark, said Pierre Friedlingstein of the University of Exeter’s Global Systems Institute. That might suggest climate talks should instead hinge on whether and how humans could one day bring global temperatures back down below that threshold, instead of averting it altogether.
</p>

<p>
	 
</p>

<p>
	The emphasis on the 1.5C goal adds a note of dissonance about what is possible as policymakers at the U.N. conference, known as COP28, search for ways to cut emissions. Some speakers in Dubai have delivered their remarks about 1.5C with a pep talk fervor, and banners around the venue recite platitudes such as “Hope inspires Action.”
</p>

<p>
	 
</p>

<p>
	Climate watchers say they understand why the messaging has not kept pace with the dire science. The 1.5C goal is an issue of politics and even, for some nations, survival. Smaller, low-lying countries fought to include that target in the Paris accords, and scientists have worried about how society might respond if there is widespread acknowledgment that the 1.5C target is lost. Some fear public disengagement, or a relaxation of emissions-cutting policies, if defeat is admitted.
</p>

<p>
	 
</p>

<p>
	For now, the target is being used as a cudgel. Because extreme weather risks will continue to grow with every fractional degree of warming, the world still needs action to reduce planet-warming emissions.
</p>

<p>
	 
</p>

<p>
	“If you’re a pilot on an airplane that might crash, at some point you have the obligation to tell your passengers to brace for impact,” said Alex Flint, who has been to five COPs and runs the Alliance for Market Solutions, a conservative group in Washington that advocates for carbon taxes as a solution to climate change. “Well, it’s time to brace for impact.”
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>An unexpected surge of global heat</strong></span>
</p>

<p>
	<br />
	A surge of global temperatures that began this summer provided an initial picture of how a planet 1.5 degrees hotter will look: Unprecedented heat at the limits of human survival. Antarctic sea ice astonishingly far below its record minimum. Devastating floods, fires and other weather extremes that have been linked to climate change.
</p>

<p>
	 
</p>

<p>
	Then, temperature anomalies continued to accelerate through Northern Hemisphere autumn, and scientists said that planetary temperatures probably surpassed 2 degrees Celsius of warming above preindustrial levels for at least a couple of days.
</p>

<p>
	 
</p>

<p>
	The warming is especially alarming because it has been more extreme than scientists expected at the start of the year.
</p>

<p>
	 
</p>

<p>
	In March, a monthly analysis by Berkeley Earth climate scientist Robert Rohde, for example, suggested 2023 would “most likely” end up the third-, fourth- or fifth-warmest year on record. Rohde added that “considerable uncertainty remains, including the possibility of 2023 becoming a record warm year.”
</p>

<p>
	 
</p>

<p>
	But the chances of record annual average global temperatures skyrocketed to 81 percent halfway through the year, Rohde calculated, and a record became a virtual certainty after July became the Earth’s hottest single month on record.
</p>

<p>
	<br />
	The World Meteorological Organization, a U.N. agency, said this month that 2023 is indeed certain to break an annual global warmth record set in 2016 and tied in 2020. WMO predicted average global temperatures will end up at least 1.3 degrees Celsius warmer than a preindustrial reference period, but shy of 1.5 degrees of warming.
</p>

<p>
	 
</p>

<p>
	As countries gathered at COP28 this week, a study by the Global Carbon Project found that efforts to transform worldwide energy usage aren’t making a dent in greenhouse gas emissions. The team of scientists projected that the temperature of the planet could consistently exceed the 1.5C threshold within seven years if emission levels hold.
</p>

<p>
	 
</p>

<p>
	And then the U.K. Met Office on Friday predicted that, in 2024, global temperatures stand a chance of averaging more than 1.5 degrees higher than from 1850 to 1900, a benchmark period from before humans’ fossil fuel consumption began adding greenhouse gases to the atmosphere and warming the planet.
</p>

<p>
	 
</p>

<p>
	Current trends and an expected acceleration from an ongoing El Niño climate pattern are likely to mean that in 2024, global temperatures average somewhere between 1.34 and 1.58 degrees Celsius above preindustrial norms, the Met Office predicted.
</p>

<p>
	 
</p>

<p>
	Nick Dunstone, a Met Office scientist who led the forecast, said that level of warming “would certainly be a milestone in climate history.”
</p>

<p>
	 
</p>

<p>
	<span style="font-size:22px;"><strong>Many alarmed by speed toward 1.5C</strong></span>
</p>

<p>
	<br />
	Even if the planet warms beyond the 1.5-degree mark next year, it wouldn’t mean the world has missed the ambitious target set in Paris in 2015 to limit warming to that level. The goal would not be considered out of reach until global temperature averages rise above that threshold for multiple years in a row, something scientists project will occur around 2030 unless greenhouse gas emissions drastically diminish in the next few years.
</p>

<p>
	But the speed with which the planet has begun to flirt with the 1.5C mark is nonetheless raising alarm.
</p>

<p>
	 
</p>

<p>
	Though there is a theoretical pathway for the world to meet the 1.5 goal, it would require such dramatic and immediate emissions cuts that scientists say it is virtually inconceivable. Scientists convened by the United Nations say the world would have to cut greenhouse gas emissions 43 percent by 2030. That would mean annual reductions that mirror what happened in the aftermath of the coronavirus pandemic, which coincided with the greatest economic crisis in more than a century.
</p>

<p>
	 
</p>

<p>
	“The math, I suppose you can say it’s technically possible,” said Alden Meyer, a senior associate at the climate think tank E3G who has attended 27 of 28 summits. “But it is politically impossible.”
</p>

<p>
	 
</p>

<p>
	Far more than the rhetoric, the detailed policymaking of COP reflects the harsh trajectory ahead. World powers are increasingly recognizing they need to step up funding for adaptation and the losses and damage climate change has inflicted on poor and vulnerable countries — which became the near-focal point of COP27 last year in Egypt.
</p>

<p>
	 
</p>

<p>
	The latest sign came Friday evening, in a newly released public update on the draft of the final agreement under debate in Dubai. In a call with reporters, researchers at E3G and the World Resources Institute said it contained much stronger additions for such money, especially adaptation funding.
</p>

<p>
	 
</p>

<p>
	It gave more detail on how urgent the need is for this funding in the developing world, and that accelerated support is critical to raising more money and protecting these countries, they said. It also made a new call for stimulus packages for developing countries, likely to become more common in the debate over climate finance, said Tom Evans, a policy adviser at E3G.
</p>

<p>
	 
</p>

<p>
	These changes are being driven by an increasing recognition of how far the world is away from reaching the 1.5-degree goal, said Gabrielle Swaby, a research associate at the World Resources Institute. The severe damage caused to developing countries has forced leaders to acknowledge the problem and grapple with the fact that the further out of control global warming gets, the more it adds to the cost of everything – reducing emissions, adapting to climate change and compensating hard-hit countries, she said.
</p>

<p>
	 
</p>

<p>
	“Science is telling us, showing us how much less of the carbon budget is available,” Swaby said. “The costs of inaction are greater than the costs of action at this stage.”
</p>

<p>
	 
</p>

<p>
	Scientists say it’s conceivable that the planet warms above 1.5 but that temperatures come back down later, either because of natural systems over decades and centuries or with the help of technology that pulls carbon dioxide from the atmosphere.
</p>

<p>
	 
</p>

<p>
	Gavin Schmidt, director of NASA’s Goddard Institute for Space Studies, compared the 1.5C target to other goals of which society keeps falling short.
</p>

<p>
	“We don’t want anybody to die of car accidents. We don’t want to have anybody die of preventable disease,” he said. “But still they do. Does it mean we should not strive to reduce the number of deaths from car accidents or preventable diseases? No. We have to keep on pushing for the lowest number we can get.”
</p>

<p>
	 
</p>

<p>
	<strong><a href="https://www.washingtonpost.com/climate-environment/2023/12/08/climate-change-threshold-cop28-dubai/" rel="external nofollow">Source</a></strong>
</p>
]]></description><guid isPermaLink="false">20539</guid><pubDate>Sat, 09 Dec 2023 20:07:47 +0000</pubDate></item></channel></rss>
