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cvanderloo

How British people weathered exceptionally cold winters - 0 views

  • side from depriving schoolchildren of the sheer fun of a snow day, climate change could lead the popular imaginary of British winters into uncharted territory.
  • By studying weather observations and stories carefully recorded in diaries, letters and newspapers, it’s possible to trace winter’s icy fingerprints on the human drama.
  • During the winter of 1794-1795, temperatures struggled to climb above freezing, hovering at a daily average of 0.5°C
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  • Tensions did not subside with the thaw: scarcity and high food prices contributed to bread riots across the country in the following spring. “Times are now alarming”, reported the Clipston Paris Register on May 1 1795.
  • . The Victoria Relief Fund was established and soup kitchens were set up in various parishes, foreshadowing social reforms that would confront poverty in subsequent decades.
  • But the winter of 1939-1940 was one of the coldest on record, and it arrived as the country anxiously contemplated another war in Europe.
  • As Britain’s winters become progressively milder, people may never see the like of 1940 again. But these descriptive accounts and first-hand testimonials unveil the power of climate change over human lifetimes – and hint at the role weather will continue to play in Britain’s future.
clairemann

How To Tackle Deforestation? Give Indigenous People Their Land Rights. | HuffPost - 1 views

  • Deforestation rates are significantly lower in forests protected and governed by Indigenous people, according to a new report.
  • found that, on average, forests in Indigenous and tribal territories have been much better conserved than other forests in the region.
  • Forests are huge carbon sinks and vital tools in holding back the climate crisis as well as stabilizing regional temperatures and rainfall patterns. Indigenous territories hold roughly one-third of all the carbon stored in the forests of Latin America and the Caribbean, and 14% of the carbon in tropical forests around the world. 
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  • These communities, with generations of experience successfully protecting nature, have strong track records of guarding the forest, according to the report. They generally favor smaller-scale, more diverse farming, which extracts far less from the land than industrial operations do. 
  • “The forest provides us food, water and gives us a roof. It’s not something alien to us, but another living being,” said Rivas, who’s also been working to promote gender equality in the agroforestry sector. “We only take what we need, nothing more.”
  • “We need to center and take direction from Indigenous and tribal earth defenders in order to protect forests’ biodiversity and even prevent the next pandemic,”
  • “This scientific consensus [in the report] gives our world’s leaders a mandate to defend the rights of Indigenous and tribal communities,” said Recinos. “Otherwise, sensitive biomes and rainforests, such as the Amazon, will remain under threat or, worse, reach an irreversible tipping point.” 
cvanderloo

In Texas, price gouging during disasters is illegal - it is also on very shaky ethical ... - 1 views

  • In Houston, as millions suffered power and water outages, food shortages and subfreezing temperatures, another problem confronted families: price hikes.Steep increases in the price of food, gas and fuel have been reported across Texas. And as millions of Texans lost power, exorbitant prices were being asked for hotel rooms with power, with some climbing to US$1,000 a night.
  • Disaster creates a scarcity of basic necessities; retailers and providers respond by sharply raising the price tags on sought-after commodities.
  • Contrarian voices argue that price hikes are good – they provide incentives for sellers to bring extra supplies and prevent hoarding.
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  • Whether price gouging helps bring more supply to disaster victims is speculative, but a surer outcome is that it will disproportionately burden the worst-off.
  • that is, an obligation to help others in danger when doing so entails only a small cost to yourself.
    • cvanderloo
       
      duty of early rescue
  • Picture a hiker lost in the woods suffering serious dehydration. A second hiker walks by and offers to sell her his extra water, but for a large sum.This violates the duty of easy rescue because it risks failing to save someone who can easily be saved, so long as the second hiker does not need the water himself.
  • Rescuing someone with little risk or cost to yourself is a moral duty, not a duty enforced by law in the U.S. So, some people might ask, why should it be enforced on would-be price gougers?
  • We are all better off when we cooperate to provide services that at some point we all may need.
    • cvanderloo
       
      social contract theory
  • This extends to rescue services such as firefighters, paramedics and first responders. But when life-threatening conditions arise from lack of food, water, shelter and power, this burden of rescue can be delegated to sellers of necessities and providers of utilities. At the least, society requires that they not raise prices and turn away those who cannot pay.
  • But actual inequality provides a reason to enforce laws against price gouging. When prices rise, the worst-off suffer the most.
anonymous

How the World's Oldest Wooden Sculpture Is Reshaping Prehistory - The New York Times - 0 views

  • How the World’s Oldest Wooden Sculpture Is Reshaping Prehistory
  • At 12,500 years old, the Shigir Idol is by far the earliest known work of ritual art. Only decay has kept others from being found.
  • The world’s oldest known wooden sculpture — a nine-foot-tall totem pole thousands of years old — looms over a hushed chamber of an obscure Russian museum in the Ural Mountains, not far from the Siberian border
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  • Shigir Idol
  • Dug out of a peat bog by gold miners in 1890, the relic, or what’s left of it, is carved from a great slab of freshly cut larch.
  • Scattered among the geometric patterns (zigzags, chevrons, herringbones) are eight human faces, each with slashes for eyes that peer not so benignly from the front and back planes.
  • “Whether it screams or shouts or sings, it projects authority, possibly malevolent authority. It’s not immediately a friend of yours, much less an ancient friend of yours.”
  • In archaeology, portable prehistoric sculpture is called “mobiliary art.”
  • The statue’s age was a matter of conjecture until 1997, when it was carbon-dated by Russian scientists to about 9,500 years old, an age that struck most scholars as fanciful.
  • The statue was more than twice as old as the Egyptian pyramids and Stonehenge, as well as, by many millenniums, the first known work of ritual art.
  • A new study that Dr. Terberger wrote with some of the same colleagues in Quaternary International, further skews our understanding of prehistory by pushing back the original date of the Shigir Idol by another 900 years, placing it in the context of the early art in Eurasia.
  • “During the period of rapid cooling from about 10,700 B.C. to 9,600 B.C. that we call the Younger Dryas, no beavers should have been around in the Transurals,” he said.)
  • Written with an eye toward disentangling Western science from colonialism, Dr. Terberger’s latest paper challenges the ethnocentric notion that pretty much everything, including symbolic expression and philosophical perceptions of the world, came to Europe by way of the sedentary farming communities in the Fertile Crescent 8,000 years ago.
  • “It’s similar to the ‘Neanderthals did not make art’ fable, which was entirely based on absence of evidence,
  • Likewise, the overwhelming scientific consensus used to hold that modern humans were superior in key ways, including their ability to innovate, communicate and adapt to different environments.
  • Nonsense, all of it.”
  • makes it clear that arguments about the wealth of mobiliary art in, say, the Upper Paleolithic of Germany or France by comparison to southern Europe, are largely nonsensical and an artifact of tundra (where there are no trees and you use ivory, which is archaeologically visible) versus open forest environments
  • The Shigir Idol, named for the bog near Kirovgrad in which it was found, is presumed to have rested on a rock base for perhaps two or three decades before toppling into a long-gone paleo-lake, where the peat’s antimicrobial properties protected it like a time capsule.
  • “It was not a scientific construction,”
  • “The rings tell us that trees were growing very slowly, as the temperature was still quite cold,”
  • Dr. Terberger respectfully disagrees.
  • “The landscape changed, and the art — figurative designs and naturalistic animals painted in caves and carved in rock — did, too, perhaps as a way to help people come to grips with the challenging environments they encountered.”
  • And what do the engravings mean? Svetlana Savchenko, the artifact’s curator and an author on the study, speculates that the eight faces may well contain encrypted information about ancestor spirits, the boundary between earth and sky, or a creation myth.
  • The temple’s stones were carved around 11,000 years ago, which makes them 1,500 years younger than the Shigir Idol.
  • One could wonder how many similar pieces have been lost over time due to poor preservation conditions.”
  • The similarity of the geometric motifs to others across Europe in that era, he added, “is evidence of long-distance contacts and a shared sign language over vast areas. The sheer size of the idol also seems to indicate it was meant as a marker in the landscape that was supposed to be seen by other hunter-gatherer groups — perhaps marking the border of a territory, a warning or welcoming sign.”
  • “What do you think is the hardest thing to find in the Stone Age archaeology of the Urals?”A pause: Sites?“No,” he said, sighing softly. “Funding.”
martinelligi

What the Pandemic Is Doing to Our Brains - The Atlantic - 0 views

  • This is the fog of late pandemic, and it is brutal. In the spring, we joked about the Before Times, but they were still within reach, easily accessible in our shorter-term memories. In the summer and fall, with restrictions loosening and temperatures rising, we were able to replicate some of what life used to be like, at least in an adulterated form: outdoor drinks, a day at the beach. But now, in the cold, dark, featureless middle of our pandemic winter, we can neither remember what life was like before nor imagine what it’ll be like after.
  • The sunniest optimist would point out that all this forgetting is evidence of the resilience of our species. Humans forget a great deal of what happens to us, and we tend to do it pretty quickly—after the first 24 hours or so. “Our brains are very good at learning different things and forgetting the things that are not a priority,” Tina Franklin, a neuroscientist at Georgia Tech, told me. As the pandemic has taught us new habits and made old ones obsolete, our brains have essentially put actions like taking the bus and going to restaurants in deep storage, and placed social distancing and coughing into our elbows near the front of the closet. When our habits change back, presumably so will our recall.
  • The share of Americans reporting symptoms of anxiety disorder, depressive disorder, or both roughly quadrupled from June 2019 to December 2020, according to a Census Bureau study released late last year. What’s more, we simply don’t know the long-term effects of collective, sustained grief. Longitudinal studies of survivors of Chernobyl, 9/11, and Hurricane Katrina show elevated rates of mental-health problems, in some cases lasting for more than a decade
cvanderloo

3 medical innovations fueled by COVID-19 that will outlast the pandemic - 0 views

  • When COVID-19 struck, mRNA vaccines in particular were ready to be put to a real-world test. The 94% efficacy of the mRNA vaccines surpassed health officials’ highest expectations.
  • DNA and mRNA vaccines offer huge advantages over traditional types of vaccines, since they use only genetic code from a pathogen – rather than the entire virus or bacteria.
  • Gene-based vaccines also produce precise and effective immune responses. They stimulate not only antibodies that block an infection, but also a strong T cell response that can clear an infection if one occurs.
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  • These devices can measure a person’s temperature, heart rate, level of activity and other biometrics. With this information, researchers have been able to track and detect COVID-19 infections even before people notice they have any symptoms.
  • Wearables can detect symptoms of COVID-19 or other illnesses before symptoms are noticeable. While they have proved to be capable of detecting sickness early, the symptoms wearables detect are not unique to COVID-19.
  • So a logical way to look for new drugs to treat a specific disease is to study individual genes and proteins that are directly affected by that disease.
  • But this idea of mapping the protein interactions of diseases to look for novel drug targets doesn’t apply just to the coronavirus. We have now used this approach on other pathogens as well as other diseases including cancer, neurodegenerative and psychiatric disorders.
edencottone

What to Know About the World's Top Covid-19 Vaccines - The New York Times - 0 views

  • Novavax
  • Johnson & Johnson
  • Russia’s Sputnik V
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  • Oxford-AstraZeneca
  • Pfizer-BioNTech
  • Chinese Vaccines
  • Efficacy: Unknown
  • Scientists have developed dozens of Covid-19 vaccines at record speed.
  • Moderna
  • pledged to be the primary vaccine provider for the developing world.
  • claims that its vaccine has a 79 percent efficacy rate, though it has not provided data.
  • expected to release results from its late-stage clinical trial this month
  • is estimated to have an efficacy rate between 63 and 78 percent
  • in Britain, India and several other countries
  • first Covid-19 vaccine to get emergency authorization in the United States
  • offers terrific protection against Covid-19 and sometimes comes with mild side effects.
  • made waves in August when early data showed that its Covid vaccine prompted a surprisingly robust immune response in people and monkeys.
  • Sputnik V vaccine has an efficacy rate of 91.4 percent.
  • could have a big impact on the pace of vaccinations in the U.S. because it is given in one dose instead of two.
  • cheap and easily stored
  • though data from late-stage trials has not yet been shared publicly.
  • Many scientists were puzzled, however, by data showing that its efficacy may depend on the strength of the initial dose or the gap between doses.
  • Moderna’s does not need to be stored at ultracold temperatures, making it better suited for smaller clinics and remote areas.
  • No serious health problems have been linked to the shot, though some people get fatigue, fever and muscle aches.
  • run into big delays
  • being distributed in Argentina, Belarus and other countries.
  • final stage of testing in the U.S. in late December.
aprossi

Impeachment push after deadly Capitol riot: Live updates - 0 views

  • House pushes for Trump's removal after deadly Capitol riot
  • Some House Democrats think their party leaders made a strategic mistake by calling for a vote
  • President Trump needs to be removed immediately. 
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  • Vice President Mike Pence to enact the 25th Amendment on the House floor.
  • House Democrat introduces resolution calling on Pence to invoke 25th Amendment
  • “Total waste of time,”
  •  reject the call to invoke the 25th Amendment to remove President Trump.
  • Pence also wrote that invoking the 25th Amendment "in such a manner would set a terrible precedent."
  • He urged Pelosi and all members of Congress to "lower the temperature and unite our country as we prepare to inaugurate President-elect Joe Biden."
  • a pardon could stave off prosecution."
  • main concern is protecting himself and his family.
  • The riot at the Capitol raises the potential of new legal exposure for the President
  • Trump defended his remarks from Jan. 6, saying they were "appropriate
  • Trump might issue a blanket pardon to cover himself and his children up
  • he thinks that he and his family have been unfairly targeted
  • attack on the Capitol creates a new dynamic surrounding the messaging and "public relations"
katedriscoll

Sense Perception Notes - ToK - 0 views

  • "Perception by the senses rather than by the intellect." (Dictionary.com)
  • "Perception by or based on stimulation of the senses." (Medical Dictionary)
  • We perceive the world through our five senses. (Hearing, Sight, Smell, Touch, Taste) Our sense receptors are stimulated by sensory information. The brain translates the sensory information into sensations such as sound, taste, temperature, etc. Higher centres in the brain either ignore or recognize the sensations and their meanings, based on neuronal networks of past association and expectation. (Some of this stage 3 work actually involves reasoning).  Click the video to see a coffee-taste expert discuss the intricacies of how different coffees taste.    Sense perception is an important dimension of comprehending the world around us. It allows us to gather information from the outside world, so we can then go on to hopefully make sense of it
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  • Stimuli are involuntarily being compared and contrasted with previous experiences. For example, when you see when you see stop light change from red to green, your mind perceives this change in colour, not so much as a change in colour, but more as a signal to move forward.
  • What we perceive depends on what is important and interest in at the time for each person (Cultural Influences on Perception). Our perceptions and conceptions are affected by things such as biases, motivations emotions cultural perspectives interests, expectations and background experiences (existing knowledge)
  • Optical illusions are very popular with students just starting out in ToK. They are clear evidence that we have weaknesses in terms of how our mind interprets stimuli. Often things are not as they appear. Our previous experiences with similar stimulai impairs our perception.
Javier E

The Lasting Lessons of John Conway's Game of Life - The New York Times - 0 views

  • “Because of its analogies with the rise, fall and alterations of a society of living organisms, it belongs to a growing class of what are called ‘simulation games,’” Mr. Gardner wrote when he introduced Life to the world 50 years ago with his October 1970 column.
  • The Game of Life motivated the use of cellular automata in the rich field of complexity science, with simulations modeling everything from ants to traffic, clouds to galaxies. More trivially, the game attracted a cult of “Lifenthusiasts,” programmers who spent a lot of time hacking Life — that is, constructing patterns in hopes of spotting new Life-forms.
  • The tree of Life also includes oscillators, such as the blinker, and spaceships of various sizes (the glider being the smallest).
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  • Patterns that didn’t change one generation to the next, Dr. Conway called still lifes — such as the four-celled block, the six-celled beehive or the eight-celled pond. Patterns that took a long time to stabilize, he called methuselahs.
  • The second thing Life shows us is something that Darwin hit upon when he was looking at Life, the organic version. Complexity arises from simplicity!
  • I first encountered Life at the Exploratorium in San Francisco in 1978. I was hooked immediately by the thing that has always hooked me — watching complexity arise out of simplicity.
  • Life shows you two things. The first is sensitivity to initial conditions. A tiny change in the rules can produce a huge difference in the output, ranging from complete destruction (no dots) through stasis (a frozen pattern) to patterns that keep changing as they unfold.
  • Life shows us complex virtual “organisms” arising out of the interaction of a few simple rules — so goodbye “Intelligent Design.”
  • I’ve wondered for decades what one could learn from all that Life hacking. I recently realized it’s a great place to try to develop “meta-engineering” — to see if there are general principles that govern the advance of engineering and help us predict the overall future trajectory of technology.
  • Melanie Mitchell— Professor of complexity, Santa Fe Institute
  • Given that Conway’s proof that the Game of Life can be made to simulate a Universal Computer — that is, it could be “programmed” to carry out any computation that a traditional computer can do — the extremely simple rules can give rise to the most complex and most unpredictable behavior possible. This means that there are certain properties of the Game of Life that can never be predicted, even in principle!
  • I use the Game of Life to make vivid for my students the ideas of determinism, higher-order patterns and information. One of its great features is that nothing is hidden; there are no black boxes in Life, so you know from the outset that anything that you can get to happen in the Life world is completely unmysterious and explicable in terms of a very large number of simple steps by small items.
  • In Thomas Pynchon’s novel “Gravity’s Rainbow,” a character says, “But you had taken on a greater and more harmful illusion. The illusion of control. That A could do B. But that was false. Completely. No one can do. Things only happen.”This is compelling but wrong, and Life is a great way of showing this.
  • In Life, we might say, things only happen at the pixel level; nothing controls anything, nothing does anything. But that doesn’t mean that there is no such thing as action, as control; it means that these are higher-level phenomena composed (entirely, with no magic) from things that only happen.
  • Stephen Wolfram— Scientist and C.E.O., Wolfram Research
  • Brian Eno— Musician, London
  • Bert Chan— Artificial-life researcher and creator of the continuous cellular automaton “Lenia,” Hong Kong
  • it did have a big impact on beginner programmers, like me in the 90s, giving them a sense of wonder and a kind of confidence that some easy-to-code math models can produce complex and beautiful results. It’s like a starter kit for future software engineers and hackers, together with Mandelbrot Set, Lorenz Attractor, et cetera.
  • if we think about our everyday life, about corporations and governments, the cultural and technical infrastructures humans built for thousands of years, they are not unlike the incredible machines that are engineered in Life.
  • In normal times, they are stable and we can keep building stuff one component upon another, but in harder times like this pandemic or a new Cold War, we need something that is more resilient and can prepare for the unpreparable. That would need changes in our “rules of life,” which we take for granted.
  • Rudy Rucker— Mathematician and author of “Ware Tetralogy,” Los Gatos, Calif.
  • That’s what chaos is about. The Game of Life, or a kinky dynamical system like a pair of pendulums, or a candle flame, or an ocean wave, or the growth of a plant — they aren’t readily predictable. But they are not random. They do obey laws, and there are certain kinds of patterns — chaotic attractors — that they tend to produce. But again, unpredictable is not random. An important and subtle distinction which changed my whole view of the world.
  • William Poundstone— Author of “The Recursive Universe: Cosmic Complexity and the Limits of Scientific Knowledge,” Los Angeles, Calif.
  • The Game of Life’s pulsing, pyrotechnic constellations are classic examples of emergent phenomena, introduced decades before that adjective became a buzzword.
  • Fifty years later, the misfortunes of 2020 are the stuff of memes. The biggest challenges facing us today are emergent: viruses leaping from species to species; the abrupt onset of wildfires and tropical storms as a consequence of a small rise in temperature; economies in which billions of free transactions lead to staggering concentrations of wealth; an internet that becomes more fraught with hazard each year
  • Looming behind it all is our collective vision of an artificial intelligence-fueled future that is certain to come with surprises, not all of them pleasant.
  • The name Conway chose — the Game of Life — frames his invention as a metaphor. But I’m not sure that even he anticipated how relevant Life would become, and that in 50 years we’d all be playing an emergent game of life and death.
pier-paolo

The Science Behind Your Child's Tantrums - The New York Times - 0 views

  • Meltdowns, common as they are among young children, are a complicated physiological response related to the brain’s threat detection system. Mid-freakout, it’s helpful for parents to understand what’s going on beneath the surface, then to mitigate the “threat” by establishing a sense of safety.
  • temper tantrum involves two parts of the brain: the amygdala, which is primarily responsible for processing emotions like fear or anger; and the hypothalamus, which in part controls unconscious functions like heart rate or temperature.
  • “When you have a fire burning in your house, you don’t want to sit and ponder, you want your body to fire on all cylinders so you can escape,”
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  • “When a driver cuts you off on the highway and your blood begins to boil, it’s your prefrontal cortex that allows you to think, ‘Wait a minute, I don’t have to act this way,’”
  • But the prefrontal cortex doesn’t fully develop until adulthood and, according to Dr. Fields, inhibition and impulse control are among the PFC’s most complicated functions. “So when you try to reason with a child, you’re appealing to a part of the brain that isn’t fully functioning.”
  • Watching someone run, for instance, seems to activate a similar brain region as when you run yourself.
  • For example, mirror neurons have been found not only in the motor areas of the brain, but also in the areas that deal with emotion. The same part of your brain that lights up when you’re feeling happy may also light up when you observe happiness in others.
  • As much as you might want to try explaining to your kid why they should calm down, behavior correction rarely works when stress is high.
anonymous

Human Brain: facts and information - 0 views

  • The human brain is more complex than any other known structure in the universe.
  • Weighing in at three pounds, on average, this spongy mass of fat and protein is made up of two overarching types of cells—called glia and neurons—and it contains many billions of each.
  • The cerebrum is the largest part of the brain, accounting for 85 percent of the organ's weight. The distinctive, deeply wrinkled outer surface is the cerebral cortex. It's the cerebrum that makes the human brain—and therefore humans—so formidable. Animals such as elephants, dolphins, and whales actually have larger brains, but humans have the most developed cerebrum. It's packed to capacity inside our skulls, with deep folds that cleverly maximize the total surface area of the cortex.
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  • The cerebrum has two halves, or hemispheres, that are further divided into four regions, or lobes. The frontal lobes, located behind the forehead, are involved with speech, thought, learning, emotion, and movement.
  • Behind them are the parietal lobes, which process sensory information such as touch, temperature, and pain.
  • At the rear of the brain are the occipital lobes, dealing with vision
  • Lastly, there are the temporal lobes, near the temples, which are involved with hearing and memory.
  • The second-largest part of the brain is the cerebellum, which sits beneath the back of the cerebrum.
  • diencephalon, located in the core of the brain. A complex of structures roughly the size of an apricot, its two major sections are the thalamus and hypothalamus
  • The brain is extremely sensitive and delicate, and so it requires maximum protection, which is provided by the hard bone of the skull and three tough membranes called meninges.
  • Want more proof that the brain is extraordinary? Look no further than the blood-brain barrier.
  • This led scientists to learn that the brain has an ingenious, protective layer. Called the blood-brain barrier, it’s made up of special, tightly bound cells that together function as a kind of semi-permeable gate throughout most of the organ. It keeps the brain environment safe and stable by preventing some toxins, pathogens, and other harmful substances from entering the brain through the bloodstream, while simultaneously allowing oxygen and vital nutrients to pass through.
  • One in five Americans suffers from some form of neurological damage, a wide-ranging list that includes stroke, epilepsy, and cerebral palsy, as well as dementia.
  • Alzheimer’s disease, which is characterized in part by a gradual progression of short-term memory loss, disorientation, and mood swings, is the most common cause of dementia. It is the sixth leading cause of death in the United States
  • 50 million people suffer from Alzheimer’s or some form of dementia. While there are a handful of drugs available to mitigate Alzheimer’s symptoms, there is no cure.
  • Unfortunately, negative attitudes toward people who suffer from mental illness are widespread. The stigma attached to mental illness can create feelings of shame, embarrassment, and rejection, causing many people to suffer in silence.
  • In the United States, where anxiety disorders are the most common forms of mental illness, only about 40 percent of sufferers receive treatment. Anxiety disorders often stem from abnormalities in the brain’s hippocampus and prefrontal cortex.
  • Attention-deficit/hyperactivity disorder, or ADHD, is a mental health condition that also affects adults but is far more often diagnosed in children.
  • ADHD is characterized by hyperactivity and an inability to stay focused.
  • Depression is another common mental health condition. It is the leading cause of disability worldwide and is often accompanied by anxiety. Depression can be marked by an array of symptoms, including persistent sadness, irritability, and changes in appetite.
  • The good news is that in general, anxiety and depression are highly treatable through various medications—which help the brain use certain chemicals more efficiently—and through forms of therapy
  •  
    Here is some anatomy of the brain and descriptions of diseases like Alzheimer's and conditions like ADHD, depression, anxiety.
runlai_jiang

Probing the Secrets of Jupiter's Great Red Spot - 0 views

  • In technical terms, the Great Red Spot is an anticyclonic storm lying in a high-pressure zone high in Jupiter's clouds. It rotates counter-clockwise and takes about six Earth days to make one complete trip around the planet. It has clouds embedded within it, which often tower many kilometers above the surrounding cloud decks. Jet streams to its north and south help keep the spot at the same latitude as it circulates.
  • Observers have studied the gas giant planet Jupiter since antiquity. However, they've only been able to observe such a giant spot for a few centuries since it was first discovered. Ground-based observations allowed scientists to chart the motions of the spot, but a true understanding was only made possible by spacecraft flybys. The Voyager 1 spacecraft raced by in 1979 and sent back the first close-up image of the spot. Voyager 2, Galileo, and Juno also provided images.
  • Scientists have been able to measure the spot's depth using specialized instruments on the Juno spacecraft. It appears to be some 300 kilometers deep. That's much deeper than any of Earth's oceans, the deepest of which is just over 10 kilometers. Interestingly, the "roots" of the Great Red Spot are warmer at the bottom (or the base) than at the top. This warmth feeds the incredibly strong and fast winds at the top of the spot, which can blow more than 430 kilometers per hour. Warm winds feeding a strong storm is a well-understood phenomenon on Earth, particularly in massive hurricanes. Above the cloud, temperatures rise again, and scientists are working to understand why this is happening. In that sense, then, the Great Red Spot is a Jupiter-style hurricane.
tongoscar

COP25 will review a scary year for climate change - Quartz - 0 views

  • The answer, of course, is that they have been warning about severe global impacts from climate change for more than three decades. But over the past 12 months those warnings have intensified.
  • on the potential impacts of a rise in global temperature of 1.5 degrees Celsius or more.
  • “global carbon dioxide emissions (to) start to decline well before 2030” to avoid the most severe consequences of global warming. It said “global warming is likely to reach 1.5 degrees Celsius between 2030 and 2052 if it continues to increase at the current rate.”
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  • “Climate change creates new risks and exacerbates existing vulnerabilities in communities across the United States, presenting growing challenges to human health and safety, quality of life, and the rate of economic growth,”
  • “climate change, including increases in frequency and intensity of extremes, has adversely impacted food security and terrestrial ecosystems as well as contributed to desertification and land degradation in many regions”
sanderk

Coronavirus deaths in US: 200,000 could die, researchers predict - Business Insider - 1 views

  • Last week, the country saw its cases spike more than 40% in just 24 hours. This week, the number of daily cases continues to rise — even as Americans practice social distancing by working from home, limiting outdoor excursions, and staying 6 feet away from one another.
  • They estimated only 12% of coronavirus cases (including asymptomatic ones) had been reported in the US as of March 15, which would mean about 29,000 infections had gone undiagnosed by that time. The US has reported more than 69,000 cases and over 1,000 deaths as of Thursday.
  • The most extreme model predicted that up to 1.2 million people could die. By comparison, a typical flu season in the US kills between 11,000 and 95,000 people, according to the Centers for Disease Control and Prevention. 
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  • Some estimated that the CDC had reported more than 20% of COVID-19 cases as of March 15, but others predicted that the agency had identified just 5% of cases. Some predicted that the US could see 1 million deaths by the end of 2020, while others predicted that the death toll would be in the thousands.
  • The New York Times recently used CDC data to model how the how the virus could spread if no actions were taken to stop transmission in the US. The models show that between 160 million and 214 million people could be infected and as many as 200,000 to 1.7 million people could die.
  • Even if all patients were able to receive treatment at hospitals, however, the researchers predicted that about 1.2 million people in the US could die.
  • But since this particular coronavirus hasn't been seen before in humans, scientists aren't certain whether it will behave the same way. Plus, it's spreading in places with high temperatures, like Australia.
  • A second outbreak could also arise after people resume normal activity. The US asked citizens to avoid international travel starting March 19, but opening its borders again could fuel the virus' spread. The same goes for allowing citizens to return to work or use mass transit.
tongoscar

Climate change is slowly drying up the Colorado River | Science News - 0 views

  • Average annual water flow dropped more than 11 percent over the last century due to warming
  • Climate change is threatening to dry up the Colorado River — jeopardizing a water supply that serves some 40 million people from Denver to Phoenix to Las Vegas and irrigates farmlands across the U.S. Southwest.
  • These findings “should be a cause for serious concern,” says climate scientist Brad Udall of Colorado State University in Fort Collins.
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  • To forecast the river’s future, Milly and Dunne combined their simulations with climate models that predict temperature increases under hypothetical emissions scenarios. If fossil fuel emissions are curbed so that atmospheric carbon dioxide concentrations level off by midcentury, the simulations predict that annual river flow would drop 14 to 26 percent compared with the average annual flow during the last century.
tongoscar

Epidemiologist Veteran of SARS and MERS Shares Coronavirus Insights after China Trip - ... - 0 views

  • Lipkin, a professor of epidemiology at Columbia University’s Mailman School of Public Health, also traveled to Saudi Arabia in 2012 to investigate the first cases of Middle East respiratory syndrome (MERS).
  • 2000s to study severe acute respiratory syndrome (SARS), which killed nearly 800 people. This time, he says, his main goal during his weeklong stay in the nation was to figure out which local public health officials and researchers he could best collaborate with in efforts to unravel what triggered the current outbreak of the novel coronavirus—now called COVID-19—and to determine what can be done to prevent a repeat.
  • Lipkin spoke with Scientific American from his home in New York City, where his university has asked him to undergo a 14-day quarantine and report his temperature twice daily until the virus’s incubation period has elapsed.
tongoscar

Australia fires: 8 things everyone should know about the bushfire disaster - Vox - 0 views

  • Since September, at least 24 million acres of Australia have burned in one of the country’s worst fire seasons on record.
  • The severity of the widespread fires is a symptom of global warming, and the blazes may even contribute to it — at least in the short term. Australia’s bushfires have released 400 megatons of carbon dioxide into the atmosphere, according to the European Union’s Copernicus Atmosphere Monitoring Service.
  • Before the fires ignited, Australia was already enduring its hottest and driest year on record. It’s summertime in the southern hemisphere, and the heat keeps rising.
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  • This summer’s high temperatures and subsequent fires are linked to climate change, which drives long-term warming trends and makes these kinds of events more severe.
  • Australia is one of the great biodiversity hotspots in the world. The island continent was isolated from the rest of the world for millions of years, allowing evolution to take strange new paths, and until fairly recently, with little human influence.Around 244 species of mammals are found only in Australia. Before the fires, its great diversity of life was already threatened due to invasive species, habitat destruction, and climate change, according to Australia’s science research agency, CSIRO. Now, ecologists are fearing severe ecological consequences from so much land being burnt at once.
tongoscar

Singapore's climate change plan needs more ambition | ASEAN Today - 0 views

  • Each person in Singapore produces more greenhouse gas emissions than their counterpart in Indonesia, China or the United Kingdom. The city-state may be responsible for just 0.11% of total global emissions, but Singapore ranks 27th out of 142 countries in terms of per capita emissions.
  • In 2015, Singapore pledged to reduce its emission intensity, the amount of greenhouse gas emissions for every dollar of gross domestic product (GDP), by 36% from 2005 levels come 2030. The city-state also committed to stabilising and capping its greenhouse gas emissions by 2030.  
  • Countries are expected to update their climate pledges by the end of this year but do not necessarily have to submit completely new ones.
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  • Singapore’s climate pledge in 2015 was deemed a “stretch target” that would not be easily met, as efforts towards sustainable development in the country were still in their nascent stages.
  • Singapore has installed large-scale floating solar panels in its reservoirs and coastal shorelines. Efforts are also being made towards making 80% of the buildings in the country green by 2030. Come 2040, only 10% of rush-hour commutes in Singapore will be made via private transportation.
  • Protecting Singapore against climate change will be costly. Up to S$100 billion will be poured into measures to cope with rising sea levels caused by climate change. Prevention is better than cure. Singapore, and countries around the world, must identify their vulnerabilities and undertake the actions required to defend their long-term national interests. But these measures should not become a substitute for ambitious efforts to reduce emissions and prevent temperatures from rising wherever possible.
johnsonel7

The coronavirus recession is just getting started - The Washington Post - 0 views

  • The record 3.3 million jobless claims reported Thursday mark the beginning of an economic crisis facing American workers and businesses — a slump, experts say, that will only end when the coronavirus pandemic is contained.
  • Although no official figures exist yet, the unemployment rate has likely jumped to at least 5.5 percent, says economist Martha Gimbel of Schmidt Futures, a level not seen since 2015 and up from 3.5 percent in February.“The most terrifying part about this is this is likely just the beginning of the layoffs,” Gimbel said
  • The bill, which gives most Americans checks worth $1,200 or more and provides billions in low-cost loans to businesses, is likely to provide a lifeline to workers and companies facing devastation, but it won’t stop a severe recession nor be adequate to sustain workers if the coronavirus health crisis lasts more than a month or two.
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  • Much of the nation has made the gut-wrenching choice to stop about half the economy and encourage most workers to stay home in an effort to save as many lives as possible
  • The average unemployment benefit check is currently $385 a week, which is less than half the typical weekly paycheck in the United States. The amount is slated to rise an additional $600 a week once President Trump signs the relief bill into law, a substantial increase meant to tide workers over as they are forced to stay home
  • All employees now have their temperature tested on the way into the warehouse. He’s had lengthy discussions with each worker about whether they should take the health risk of coming to work. They now run two shifts and mandate that employees stand about 10 feet from each other. Between the shifts, they sanitize the whole facility — doorknobs, surfaces, bathrooms, tools.
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