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dicindioha

Why coal-fired power handouts would be an attack on climate and common sense | Environm... - 0 views

  • The coal industry knows that to stop runaway climate change all coal-powered generators need to close Australia joined 174 countries and the European Union in 2015, signing the Paris agreement. In doing so, Australia agreed to do its part in keeping the global temperature rise “well below” 2C.
  • According to data from the Office of the Chief Economist, the demand for coal-generated electricity has dropped by more than 15% in the past eight years.
  • Coal is now the most expensive form of new power. According to Bloomberg New Energy Finance, the cost of energy from a new coal power plant would be $134-$203/MWh. That’s more expensive than wind, solar or highly efficient combined-cycle gas (costing $61-$118/MWh, $78-$140/MWh and $74-$90/MWh, respectively).
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  • The only people who still think we need the old-fashioned sort of “baseload power” that coal provides – power that is always running regardless of whether you need it – are those in the coal industry.
    • dicindioha
       
      This claim seems a bit extreme, saying that the only people still interested in coal are in the coal industry. It might be true, but I also feel as if some people do not think of where their power source comes from.
  • In the short term, that can be gas. But, in the longer term, to stop runaway climate change, that service will need to be supplied by renewable sources such as battery storage, hydro, solar thermal with storage or geothermal.
  • “As the world’s largest coal exporter, we have a vested interest in showing that we can provide both lower emissions and reliable baseload power with state-of-the-art, clean, coal-fired technology.”
  •  
    This article is really interesting because I think it goes to show that there is still some side of the global warming/climate change argument that is making progress. As we learned today, it is important to walk that middle line between over-skepticism and gullibility. Here people recognize that coal emissions are bad, and countries are taking a stand to try and lower that. It does make me wonder though what the future with coal holds, and if one day, we really will resort to renewable energy. It seems increasingly important. One more interesting thing I found was the use of the graphs to support the information, for graphs used to seem to me something people trust, but now I realize we have survival instincts associated even with data, and I wonder if some people would remark this as "fake news."
Javier E

Rough Type: Nicholas Carr's Blog: Minds like sieves - 0 views

  • They conducted a series of four experiments aimed at answering this question: Does our awareness of our ability to use Google to quickly find any fact or other bit of information influence the way our brains form memories? The answer, they discovered, is yes: "when people expect to have future access to information, they have lower rates of recall of the information itself and enhanced recall instead for where to access it."
  • we seem to have trained our brains to immediately think of using a computer when we're called on to answer a question or otherwise provide some bit of knowledge.
  • people who believed the information would be stored in the computer had a weaker memory of the information than those who assumed that the information would not be available in the computer.
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  • Since search engines are continually available to us, we may often be in a state of not feeling we need to encode the information internally. When we need it, we will look it up."
  • when people expect information to remain continuously available (such as we expect with Internet access), we are more likely to remember where to find it than we are to remember the details of the item."
  • we've never had an "external memory" so capacious, so available and so easily searched as the web. If, as this study suggests, the way we form (or fail to form) memories is deeply influenced by the mere existence of external information stores, then we may be entering an era in history in which we will store fewer and fewer memories inside our own brains.
  • If a fact stored externally were the same as a memory of that fact stored in our mind, then the loss of internal memory wouldn't much matter. But external storage and biological memory are not the same thing. When we form, or "consolidate," a personal memory, we also form associations between that memory and other memories that are unique to ourselves and also indispensable to the development of deep, conceptual knowledge. The associations, moreover, continue to change with time, as we learn more and experience more. As Emerson understood, the essence of personal memory is not the discrete facts or experiences we store in our mind but "the cohesion" which ties all those facts and experiences together. What is the self but the unique pattern of that cohesion?
  • as memory shifts from the individual mind to the machine's shared database, what happens to that unique "cohesion" that is the self?
runlai_jiang

GE Power, in Need of a Lift, Chases Tesla and Siemens in Batteries - WSJ - 0 views

  • The giant platform called GE Reservoir is expected to store electricity generated by wind turbines and solar panels for later use. The battery-storage market is expected to grow in coming years as some utilities look for less-expensive alternatives to the power plants that fire up during peak hours to meet power demand.
  • Siemens, one of GE’s biggest rivals in the power business, paired with AES Corp. last year to launch Fluence Energy LLC, a joint venture that is building what is expected to be the world’s largest lithium-ion battery in California. IHS Markit predicts the global market for batteries in the power sector will grow 14% annually through 2025.
  • The company tried making batteries using sodium-based technologie
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  • Success would be a needed boost for the struggling conglomerate, which is in the middle of restructuring and said last week it would overhaul its board. GE is seeking access to a market that Navigant Research predicts will generate tens of billions of dollars in revenue in the next decade or so.
  • Prices of lithium-ion batteries have dropped sharply in recent years, as they have become ubiquitous in products such as laptops and smartphones, improving the economies of scale of manufacturing. That is start
  • GE is hoping to change that with the Reservoir platform. GE says the Reservoir battery can last about 15% longer than the best batteries currently on the market and can be installed quicker.
Javier E

Climate Change Data Deluge Has Scientists Scrambling for Solutions - WSJ - 0 views

  • For decades, scientists working to predict changes in the climate relied mostly on calculations involving simple laws of physics and chemistry but little data from the real world. But with temperatures world-wide continuing to rise—and with data-collection techniques and technologies continuing to advance—scientists now rely on meticulous measurements of temperatures, ocean currents, soil moisture, air quality, cloud cover and hundreds of other phenomena on Earth and in its atmosphere.
  • “Now we can truly do climate studies because now we have observations to precisely say how weather trends have changed and are changing,
  • “When you are trying to develop long-term environmental records, including climate records, consistent measurement is incredibly valuable,” says Kevin Murphy, who as NASA’s chief science data officer oversees an archive of Earth observation data used by 3.9 million people last year. “It’s irreplaceable data.”
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  • Over the next decade, officials managing the main U.S. repositories of climate-related information expect their archives’ total volume to grow from about 83 petabytes today to more than 650 petabytes.
  • One petabyte of digital memory can hold thousands of feature-length movies, with 650 enough to hold the contents of the Library of Congress 30 times over.
  • All that information, though, is more than conventional data storage can handle and more than any human mind can readily assimilate,
  • To accommodate it all, the federal workers tasked with managing the data are moving it into the cloud, which offers almost unlimited memory storage while eliminating the need for scientists to maintain their own on-site archive
  • archive managers are devising new analytical techniques and adapting a standard format for the data no matter who collected it and who wants to study it.
  • In essence, they are reinventing climate science from the ground up.
  • “We are in the midst of a technology evolution,
  • As of last September, government agencies and private companies had about 900 Earth-orbiting satellites gathering data about our planet, according to the Union of Concerned Scientists. That is almost three times as many as were aloft in 2008. More are being readied for launch.
  • ASA’s $1 billion Surface Water and Ocean Topography mission will measure Earth’s lakes, rivers and oceans in the first detailed global survey of the planet’s surface water.
  • That is a drop in the data bucket compared with the space agency’s $1.5 billion Nisar radar imaging satellite, which is scheduled for launch in January 2023. Its sensors will detect movements of the planet’s land, ice sheets and sea ice as small as 0.4 inches, transmitting 80 terabytes of data every day.
  • With current data handling systems and typical internet connections, it would take a climate researcher about a year to download just four days’ worth of Nisar dat
  • NASA and NOAA are working with Amazon Web Services, Google Cloud and Microsoft Corp. to move their climate databases into the cloud.
  • Earlier this year, the United Nations Intergovernmental Panel on Climate Change for the first time used data on past climate behavior to gauge the reliability of climate models for policy makers.
Javier E

Climate Change: The Technologies That Could Make All the Difference - WSJ - 0 views

  • The modularity of DAC systems implies that costs for CO2 removal might drop 90% to 95% over a couple of decades, just like the recent cost declines for other modular solutions such as wind turbines, solar panels and lithium-ion batteries.
  • Unlike other pollutants, what matters with carbon dioxide isn’t the location of its release but the total atmospheric accumulation. Releasing greenhouse gases in industrial corridors and then removing them from the atmosphere in remote locations has essentially the same net effect as if the carbon wasn’t emitted in the first place. That means we can deploy DAC systems wherever the energy for their operation is cheapest, ecosystem impacts are lowest, and the economic activity would be welcome.
  • A solar microgrid, which generates, stores and distributes clean energy to homes and facilities in a local network, provides a strong answer to these needs and wants. It can integrate with the main electric grid or disconnect and operate autonomously if the main grid is stressed or goes down. The physical pieces—solar panels, batteries and inverters—have been improving for a while. What’s new and coming, though, is the ability to orchestrate these different pieces into agile electric grids.
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  • With digital tools and data science, demand for energy can now be sculpted locally to match available resources, reducing the number of power plants that utilities need to keep in reserve.
  • The key is giving consumers the ability to separate flexible energy uses—say, operating a Jacuzzi—from essential needs, which can now be done with phone apps for smart appliances and service panels.
  • Meanwhile, connections between groups of customers can be opened and closed as needed with modern, communicating circuit switchgear.
  • The good news is that record amounts of batteries are being installed in U.S. homes and on the electric grid, despite supply-chain bottlenecks.
  • The bad news is that current battery technology only offers a few hours of storage. What’s needed are more-powerful battery systems that can extend the length or scale of storing, which could be even more enabling to sun and wind power.
  • Two such solutions are on the horizon. Stationary metal-air batteries, such as iron-air batteries, don’t hold as much energy per kilogram as lithium-ion batteries so it takes a larger, heavier battery to do the job. But they are cheaper, iron is a plentiful metal, and the batteries, whose chemistry works via interaction of the metal with air, can be sized and installed to store and discharge a large level of electricity over days or weeks.
  • improved large iron-air batteries are poised to become a great new backup for renewable energy within the next couple of years to address those times of year when drops in renewable energy production can last for days and not hours.
  • For households, a battery configuration called a virtual power plant also holds huge potential to extend the use of renewables. These systems allow a local utility or electricity distributor to collect excess energy stored in multiple households’ battery systems and feed it back to the grid when there is a surge in demand or generation shortfall.
  • Electrification is a good choice for smaller vessels on short voyages, like the world’s largest all-electric ferry launched in Norway in 2021. It isn’t yet a viable option for ships on transoceanic voyages because batteries are still too large and heavy, though innovative approaches for battery swapping are being explored.
  • Greener Shipping
  • For longer voyages, e-ammonia, a hydrogen-derived fuel made with renewable energy, has been identified as a prime candidate, although work is needed to ensure safety. Ammonia has a higher energy density than some other options, making it a more economical option for powering large ships across oceans.
  • Among ammonia projects in the works, MAN Energy Solutions is developing engines that can run on conventional fossil fuel or ammonia, a coalition of Nordic partners is designing the world’s first ammonia-powered vessel, and Singapore is evaluating how to bunker the fuel.
  • Some EV makers such as Tesla are now embracing an older, less-expensive battery technology known as lithium-iron-phosphate, or LFP, used originally in scooters and small EVs in China
  • . It draws entirely on cheap and abundant minerals and is less flammable. The power density of LFP is less than NMC, but that disadvantage can be overcome by advances in vehicle design.
  • One approach being tested eliminates the outer packaging of the batteries altogether and directly installs cells, packed in layers, into a cavity in the EV’s body chassis.
  • Eventually, solid-state batteries—with a solid electrolyte made from common minerals like glass or ceramics—could become a key EV battery technology.
  • The solid electrolyte is more chemically stable, lighter, recharges faster and has many more lifetime recharging cycles than lithium-ion batteries, which depend on heavy liquid electrolytes.
  • these innovations are good news for those hoping to speed up EV adoption. They also suggest that batteries, far from becoming a standardized commodity, are going to be customized as auto makers create their own vehicle designs and battery makers develop proprietary platforms.
Javier E

Machines of Laughter and Forgetting - NYTimes.com - 0 views

  • “Civilization,” wrote the philosopher and mathematician Alfred North Whitehead in 1911, “advances by extending the number of important operations which we can perform without thinking about them.”
  • On this account, technology can save us a lot of cognitive effort, for “thinking” needs to happen only once, at the design stage.
  • The hidden truth about many attempts to “bury” technology is that they embody an amoral and unsustainable vision. Pick any electrical appliance in your kitchen. The odds are that you have no idea how much electricity it consumes, let alone how it compares to other appliances and households. This ignorance is neither natural nor inevitable; it stems from a conscious decision by the designer of that kitchen appliance to free up your “cognitive resources” so that you can unleash your inner Oscar Wilde on “contemplating” other things. Multiply such ignorance by a few billion, and global warming no longer looks like a mystery.
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  • on many important issues, civilization only destroys itself by extending the number of important operations that we can perform without thinking about them. On many issues, we want more thinking, not less.
  • Given that our online tools and platforms are built in a way to make our browsing experience as frictionless as possible, is it any surprise that so much of our personal information is disclosed without our ever realizing it?
  • Instead of having the designer think through all the moral and political implications of technology use before it reaches users — an impossible task — we must find a way to get users to do some of that thinking themselves.
  • most designers, following Wilde, think of technologies as nothing more than mechanical slaves that must maximize efficiency. But some are realizing that technologies don’t have to be just trivial problem-solvers: they can also be subversive troublemakers, making us question our habits and received ideas.
  • Recently, designers in Germany built devices — “transformational products,” they call them — that engage users in “conversations without words.” My favorite is a caterpillar-shaped extension cord. If any of the devices plugged into it are left in standby mode, the “caterpillar” starts twisting as if it were in pain. Does it do what normal extension cords do? Yes. But it also awakens users to the fact that the cord is simply the endpoint of a complex socio-technical system with its own politics and ethics. Before, designers have tried to conceal that system. In the future, designers will be obliged to make it visible.
  • Will such extra seconds of thought — nay, contemplation — slow down civilization? They well might. But who said that stopping to catch a breath on our way to the abyss is not a sensible strategy?
tornekm

Does the digital era herald the end of history? - BBC News - 0 views

  • 2013 the world contained about 4.4 zettabytes (4.4 trillion gigabytes) of data. By 2020, it expects this to have risen tenfold.
  • History, in other words, has gone online
  • But anyone who's seen their photo or music collections wiped out, knows how easily digital files can be lost.
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  • A digital version of the fire that nearly destroyed the great Library of Alexandria - and many of its culturally significant books and scrolls - in 48BC, may not be as far-fetched as it sounds
  • MP was "the most significant threat" to the US and its allies.
  • And in an increasingly networked digital world, the same catastrophic result could be achieved by a particularly virulent piece of malware or through state-sponsored cyber-warfare.
  • Many of the earliest floppy disks can no longer be read - the data they contain has been lost forever.
  • Ten years ago storage would have cost about £30 per gigabyte; now it costs pennies.
  • We're likely to see a rise in digital archiving services,"
  • We're only just beginning to understand how important this data is and what the consequences might be if we lost it.
Javier E

Marie Kondo and the Ruthless War on Stuff - The New York Times - 1 views

  • the method outlined in Kondo’s book. It includes something called a “once-in-a-lifetime tidying marathon,” which means piling five categories of material possessions — clothing, books, papers, miscellaneous items and sentimental items, including photos, in that order — one at a time, surveying how much of each you have, seeing that it’s way too much and then holding each item to see if it sparks joy in your body. The ones that spark joy get to stay. The ones that don’t get a heartfelt and generous goodbye, via actual verbal communication, and are then sent on their way to their next life.
  • She is often mistaken for someone who thinks you shouldn’t own anything, but that’s wrong. Rather, she thinks you can own as much or as little as you like, as long as every possession brings you true joy.
  • By the time her book arrived, America had entered a time of peak stuff, when we had accumulated a mountain of disposable goods — from Costco toilet paper to Isaac Mizrahi swimwear by Target — but hadn’t (and still haven’t) learned how to dispose of them. We were caught between an older generation that bought a princess phone in 1970 for $25 that was still working and a generation that bought $600 iPhones, knowing they would have to replace them within two years. We had the princess phone and the iPhone, and we couldn’t dispose of either. We were burdened by our stuff; we were drowning in it.
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  • A woman named Diana, who wore star-and-flower earrings, said that before she tidied, her life was out of control. Her job had been recently eliminated when she found the book. “It’s a powerful message for women that you should be surrounded by things that make you happy,”
  • “I found the opposite of happiness is not sadness,” Diana told us. “It’s chaos.”
  • Another woman said she KonMaried a bad boyfriend. Having tidied everything in her home and finding she still distinctly lacked happiness, she held her boyfriend in her hands, realized he no longer sparked joy and got rid of him.
  • She realized that the work she was doing as a tidying consultant was far more psychological than it was practical. Tidying wasn’t just a function of your physical space; it was a function of your soul.
  • . She wants you to override the instinct to keep a certain thing because an HGTV show or a home-design magazine or a Pinterest page said it would brighten up your room or make your life better. She wants you to possess your possessions on your own terms, not theirs
  • she would say to him what she said to me, that yes, America is a little different from Japan, but ultimately it’s all the same. We’re all the same in that we’re enticed into the false illusion of happiness through material purchase.
  • each organizer I spoke with said that she had the same fundamental plan that Kondo did, that the client should purge (they cry “purge” for what Kondo gently calls “discarding”) what is no longer needed or wanted; somehow the extra step of thanking the object or folding it a little differently enrages them. This rage hides behind the notion that things are different here in America, that our lives are more complicated and our stuff is more burdensome and our decisions are harder to make.
  • Conference was different from the KonMari events that I attended. Whereas Kondo does not believe that you need to buy anything in order to organize and that storage systems provide only the illusion of tidiness, the women of Conference traded recon on timesaving apps, label makers, the best kind of Sharpie, the best tool they own (“supersticky notes,” “drawer dividers”)
  • They don’t like that you have to get rid of all of your papers, which is actually a misnomer: Kondo just says you should limit them because they’re incapable of sparking joy, and you should confine them to three folders: needs immediate attention, must be kept for now, must be kept forever.
  • She leaves room for something that people don’t often give her credit for: that the KonMari method might not be your speed. “I think it’s good to have different types of organizing methods,” she continued, “because my method might not spark joy with some people, but his method might.
  • Ultimately, the women of NAPO said that Kondo’s methods were too draconian and that the clients they knew couldn’t live in Kondo’s world. They had jobs and children, and they needed baby steps and hand-holding and maintenance plans. They needed someone to do for them what they couldn’t naturally do for themselves.
  • the most potent difference between Kondo and the NAPO women is that the NAPO women seek to make a client’s life good by organizing their stuff; Kondo, on the other hand, leads with her spiritual mission, to change their lives through magic.
  • She went to work in finance, but she found the work empty and meaningless. She would come home and find herself overwhelmed by her stuff. So she began searching for “minimalism” on the internet almost constantly, happening on Pinterest pages of beautiful, empty bathrooms and kitchens, and she began to imagine that it was her stuff that was weighing her down. She read philosophy blogs about materialism and the accumulation of objects. “They just all talked about feeling lighter,”
  • “I never knew how to get here from there,” she said. Ning looked around her apartment, which is spare. She loves it here now, but that seemed impossible just a couple of years ago.
  • She found Kondo’s book, and she felt better immediately, just having read it. She began tidying, and immediately she lost three pounds. She had been trying to lose weight forever, and then suddenly, without effort, three pounds, just gone.
  • when it comes to stuff, we are all the same. Once we’ve divided all the drawers and eliminated that which does not bring us joy and categorized ourselves within an inch of our lives, we’ll find that the person lying beneath all the stuff was still just plain old us. We are all a mess, even when we’re done tidying.
sissij

Tesla Passes Ford in Market Value as Investors Bet on the Future - The New York Times - 0 views

  • But there is one exception. Tesla, the electric-vehicle upstart, continues to surge.
  • “Investors want something that is going to go up in orders of magnitude in six months to six years, and Tesla is that story,” said Karl Brauer, a senior editor at Kelley Blue Book. “Nobody thinks Ford or G.M. is going to do that.”
  • Tesla’s chief executive, Elon Musk, has shattered the conventional wisdom that automakers should be viewed as a stable, reliable investment. Instead, he promotes his California-based company as a dynamic vehicle for growth, despite the risks and challenges ahead of it.
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  • But neither automaker has convinced Wall Street that it has shed its boom-or-bust reputation tied to broader economic cycles, or is at the forefront of new technology being developed for self-driving vehicles and electric cars.
  • “It’s almost like Tesla is positioned in people’s minds as an energy storage company that happens to put most of its batteries on wheels,” said Andrew Stewart, chief investment officer at Exchange Capital Management, an investment firm in Ann Arbor, Mich.
  • While Tesla may enjoy the favor of investors, it still faces some daunting hurdles to reach its goals.
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    In my research on Tesla, I found it very interesting that Tesla never has advertisement spreading out like Ford, Motor or other motor companies do. Yet, it is very popular and well-known. How does Tesla manage to be known by the public if they don't have any advertisement and their target costumers are the elites? One of the reason I found online about its propaganda strategy is its skill on giving stock holder confidence. Thus their stock price is always positive and healthy. By generating new ideas, Tesla is able to stay on the headline of the newspaper. When I saw this news, my first reaction is that it's Tesla again and give me a very positive image on the future of Tesla. This new way of propaganda is directly related to the new form of economics in the society so I found it very interesting. --Sissi (4/4/2017)
Javier E

Eric Kandel's Visions - The Chronicle Review - The Chronicle of Higher Education - 0 views

  • Judith, "barely clothed and fresh from the seduction and slaying of Holofernes, glows in her voluptuousness. Her hair is a dark sky between the golden branches of Assyrian trees, fertility symbols that represent her eroticism. This young, ecstatic, extravagantly made-up woman confronts the viewer through half-closed eyes in what appears to be a reverie of orgasmic rapture," writes Eric Kandel in his new book, The Age of Insight. Wait a minute. Writes who? Eric Kandel, the Nobel-winning neuroscientist who's spent most of his career fixated on the generously sized neurons of sea snails
  • Kandel goes on to speculate, in a bravura paragraph a few hundred pages later, on the exact neurochemical cognitive circuitry of the painting's viewer:
  • "At a base level, the aesthetics of the image's luminous gold surface, the soft rendering of the body, and the overall harmonious combination of colors could activate the pleasure circuits, triggering the release of dopamine. If Judith's smooth skin and exposed breast trigger the release of endorphins, oxytocin, and vasopressin, one might feel sexual excitement. The latent violence of Holofernes's decapitated head, as well as Judith's own sadistic gaze and upturned lip, could cause the release of norepinephrine, resulting in increased heart rate and blood pressure and triggering the fight-or-flight response. In contrast, the soft brushwork and repetitive, almost meditative, patterning may stimulate the release of serotonin. As the beholder takes in the image and its multifaceted emotional content, the release of acetylcholine to the hippocampus contributes to the storing of the image in the viewer's memory. What ultimately makes an image like Klimt's 'Judith' so irresistible and dynamic is its complexity, the way it activates a number of distinct and often conflicting emotional signals in the brain and combines them to produce a staggeringly complex and fascinating swirl of emotions."
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  • His key findings on the snail, for which he shared the 2000 Nobel Prize in Physiology or Medicine, showed that learning and memory change not the neuron's basic structure but rather the nature, strength, and number of its synaptic connections. Further, through focus on the molecular biology involved in a learned reflex like Aplysia's gill retraction, Kandel demonstrated that experience alters nerve cells' synapses by changing their pattern of gene expression. In other words, learning doesn't change what neurons are, but rather what they do.
  • In Search of Memory (Norton), Kandel offered what sounded at the time like a vague research agenda for future generations in the budding field of neuroaesthetics, saying that the science of memory storage lay "at the foothills of a great mountain range." Experts grasp the "cellular and molecular mechanisms," he wrote, but need to move to the level of neural circuits to answer the question, "How are internal representations of a face, a scene, a melody, or an experience encoded in the brain?
  • Since giving a talk on the matter in 2001, he has been piecing together his own thoughts in relation to his favorite European artists
  • The field of neuroaesthetics, says one of its founders, Semir Zeki, of University College London, is just 10 to 15 years old. Through brain imaging and other studies, scholars like Zeki have explored the cognitive responses to, say, color contrasts or ambiguities of line or perspective in works by Titian, Michelangelo, Cubists, and Abstract Expressionists. Researchers have also examined the brain's pleasure centers in response to appealing landscapes.
  • it is fundamental to an understanding of human cognition and motivation. Art isn't, as Kandel paraphrases a concept from the late philosopher of art Denis Dutton, "a byproduct of evolution, but rather an evolutionary adaptation—an instinctual trait—that helps us survive because it is crucial to our well-being." The arts encode information, stories, and perspectives that allow us to appraise courses of action and the feelings and motives of others in a palatable, low-risk way.
  • "as far as activity in the brain is concerned, there is a faculty of beauty that is not dependent on the modality through which it is conveyed but which can be activated by at least two sources—musical and visual—and probably by other sources as well." Specifically, in this "brain-based theory of beauty," the paper says, that faculty is associated with activity in the medial orbitofrontal cortex.
  • It also enables Kandel—building on the work of Gombrich and the psychoanalyst and art historian Ernst Kris, among others—to compare the painters' rendering of emotion, the unconscious, and the libido with contemporaneous psychological insights from Freud about latent aggression, pleasure and death instincts, and other primal drives.
  • Kandel views the Expressionists' art through the powerful multiple lenses of turn-of-the-century Vienna's cultural mores and psychological insights. But then he refracts them further, through later discoveries in cognitive science. He seeks to reassure those who fear that the empirical and chemical will diminish the paintings' poetic power. "In art, as in science," he writes, "reductionism does not trivialize our perception—of color, light, and perspective—but allows us to see each of these components in a new way. Indeed, artists, particularly modern artists, have intentionally limited the scope and vocabulary of their expression to convey, as Mark Rothko and Ad Reinhardt do, the most essential, even spiritual ideas of their art."
  • The author of a classic textbook on neuroscience, he seems here to have written a layman's cognition textbook wrapped within a work of art history.
  • "our initial response to the most salient features of the paintings of the Austrian Modernists, like our response to a dangerous animal, is automatic. ... The answer to James's question of how an object simply perceived turns into an object emotionally felt, then, is that the portraits are never objects simply perceived. They are more like the dangerous animal at a distance—both perceived and felt."
  • If imaging is key to gauging therapeutic practices, it will be key to neuroaesthetics as well, Kandel predicts—a broad, intense array of "imaging experiments to see what happens with exaggeration, distorted faces, in the human brain and the monkey brain," viewers' responses to "mixed eroticism and aggression," and the like.
  • while the visual-perception literature might be richer at the moment, there's no reason that neuroaesthetics should restrict its emphasis to the purely visual arts at the expense of music, dance, film, and theater.
  • although Kandel considers The Age of Insight to be more a work of intellectual history than of science, the book summarizes centuries of research on perception. And so you'll find, in those hundreds of pages between Kandel's introduction to Klimt's "Judith" and the neurochemical cadenza about the viewer's response to it, dossiers on vision as information processing; the brain's three-dimensional-space mapping and its interpretations of two-dimensional renderings; face recognition; the mirror neurons that enable us to empathize and physically reflect the affect and intentions we see in others; and many related topics. Kandel elsewhere describes the scientific evidence that creativity is nurtured by spells of relaxation, which foster a connection between conscious and unconscious cognition.
  • Zeki's message to art historians, aesthetic philosophers, and others who chafe at that idea is twofold. The more diplomatic pitch is that neuroaesthetics is different, complementary, and not oppositional to other forms of arts scholarship. But "the stick," as he puts it, is that if arts scholars "want to be taken seriously" by neurobiologists, they need to take advantage of the discoveries of the past half-century. If they don't, he says, "it's a bit like the guys who said to Galileo that we'd rather not look through your telescope."
  • Matthews, a co-author of The Bard on the Brain: Understanding the Mind Through the Art of Shakespeare and the Science of Brain Imaging (Dana Press, 2003), seems open to the elucidations that science and the humanities can cast on each other. The neural pathways of our aesthetic responses are "good explanations," he says. But "does one [type of] explanation supersede all the others? I would argue that they don't, because there's a fundamental disconnection still between ... explanations of neural correlates of conscious experience and conscious experience" itself.
  • There are, Matthews says, "certain kinds of problems that are fundamentally interesting to us as a species: What is love? What motivates us to anger?" Writers put their observations on such matters into idiosyncratic stories, psychologists conceive their observations in a more formalized framework, and neuroscientists like Zeki monitor them at the level of functional changes in the brain. All of those approaches to human experience "intersect," Matthews says, "but no one of them is the explanation."
  • "Conscious experience," he says, "is something we cannot even interrogate in ourselves adequately. What we're always trying to do in effect is capture the conscious experience of the last moment. ... As we think about it, we have no way of capturing more than one part of it."
  • Kandel sees art and art history as "parent disciplines" and psychology and brain science as "antidisciplines," to be drawn together in an E.O. Wilson-like synthesis toward "consilience as an attempt to open a discussion between restricted areas of knowledge." Kandel approvingly cites Stephen Jay Gould's wish for "the sciences and humanities to become the greatest of pals ... but to keep their ineluctably different aims and logics separate as they ply their joint projects and learn from each other."
Javier E

untitled - 0 views

  • Scientists at Stanford University and the J. Craig Venter Institute have developed the first software simulation of an entire organism, a humble single-cell bacterium that lives in the human genital and respiratory tracts.
  • the work was a giant step toward developing computerized laboratories that could carry out many thousands of experiments much faster than is possible now, helping scientists penetrate the mysteries of diseases like cancer and Alzheimer’s.
  • cancer is not a one-gene problem; it’s a many-thousands-of-factors problem.”
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  • This kind of modeling is already in use to study individual cellular processes like metabolism. But Dr. Covert said: “Where I think our work is different is that we explicitly include all of the genes and every known gene function. There’s no one else out there who has been able to include more than a handful of functions or more than, say, one-third of the genes.”
  • The simulation, which runs on a cluster of 128 computers, models the complete life span of the cell at the molecular level, charting the interactions of 28 categories of molecules — including DNA, RNA, proteins and small molecules known as metabolites, which are generated by cell processes.
  • They called the simulation an important advance in the new field of computational biology, which has recently yielded such achievements as the creation of a synthetic life form — an entire bacterial genome created by a team led by the genome pioneer J. Craig Venter. The scientists used it to take over an existing cell.
  • A decade ago, scientists developed simulations of metabolism that are now being used to study a wide array of cells, including bacteria, yeast and photosynthetic organisms. Other models exist for processes like protein synthesis.
  • “Right now, running a simulation for a single cell to divide only one time takes around 10 hours and generates half a gigabyte of data,” Dr. Covert wrote. “I find this fact completely fascinating, because I don’t know that anyone has ever asked how much data a living thing truly holds. We often think of the DNA as the storage medium, but clearly there is more to it than that.”
  • scientists chose an approach called object-oriented programming, which parallels the design of modern software systems. Software designers organize their programs in modules, which communicate with one another by passing data and instructions back and forth.
  • “The major modeling insight we had a few years ago was to break up the functionality of the cell into subgroups, which we could model individually, each with its own mathematics, and then to integrate these submodels together into a whole,”
B Mannke

Oldest Human Footprints In North America Identified, Said To Date Back 10,500 Years (PH... - 0 views

  • Footprints found in the soft limestone of the Mexican desert have been identified as the oldest in North America. The prints, recently dated to about 10,500 years ago, were found during highway construction in northeastern Mexico in 1961. At the time, the section of rock containing the prints was taken to the Museo del Desierto in Saltillo, Mexico, and put in storage, archaeology site Western Digs reported.
  • "identifiable as human footprints because of the definable footprint shape and visible mud rims around the heel, balls of the feet and toes (areas of most pressure),"
  • The detailed dating is significant because it means the prints "prove that humans were living in what now is a desert, since 10,500 years ago, utilizing the resources available at the time," researcher Silvia Gonzalez, of Liverpool John Moores University, told HuffPost Science.
charlottedonoho

Gender and racial bias can be 'unlearnt' during sleep, new study suggests | Science | T... - 0 views

  • Now scientists have found a more noble purpose for the technique in a study that suggests deep-rooted biases about race and gender could be “unlearnt” during a short nap. The findings appear to confirm the idea that sleeping provides a unique window for accessing and altering fundamental beliefs – even prejudices that we don’t know we have.
  • Simply playing auditory cues while people slept partially undid racial and gender bias, the study found, and the effects were still evident at least a week later.
  • “These biases are well-learned,” said Hu. “They can operate efficiently even when we have the good intention to avoid such biases. Moreover, we are often not aware of their influences on our behaviour.”
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  • The study, published in Science, began with two Pavlovian-style conditioning exercises designed to counter race and gender biases.
  • However, they caution that the use of the technique in future would need strict ethical guidelines. “Sleep is a state in which the individual is without wilful consciousness and therefore vulnerable to suggestion,” they add.
  • Scientists believe the technique works because we consolidate memories by replaying them during sleep and transferring the information from the brain’s temporary storage to long-term memory. Hearing the distinctive sound would trigger the memory to be replayed repeatedly, the scientists said, enhancing the learning process.
  • “We call this Targeted Memory Reactivation, because the sounds played during sleep could produce relatively better memory for information cued during sleep compared to information not cued during sleep.
demetriar

Amnesia researchers use light to restore 'lost' memories in mice | Science | The Guardian - 0 views

  • Amnesia remains a controversial subject in the field of neuroscience, with some researchers arguing that it occurs when cells are damaged and memory cannot be stored, while others believe that the memories are simply blocked and cannot be recalled.
  • The study, published in the US journal Science, indicated that memories do in fact remain, but are simply unable to be recollected.
  • The study allowed scientists to separate memory storage mechanisms from those allowing an organism to form and recover the memory, said MIT researcher Tomas Ryan, who co-authored the study.
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  • “The strengthening of engram synapses is crucial for the brain’s ability to access or retrieve those specific memories,” Ryan said.
  • “past memories may not be erased, but could simply be lost and inaccessible for recall”.
summertyler

Forget what you think you know about how memory works | Genetic Literacy Project - 0 views

  • Where do memories come from?
  • For quite some time the science of memories seemed focused on one pathway, but now there is new research indicating that this is only part of a larger story
  • There’s a kind of fashion about memory – like many mental models constructed for difficult concepts, the signs of the times inform how the current models approach the inquiry.
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  • movement in the nervous system created memories
  • memories are the encoding of experiences on webs of neurons in the brain
  • memory involved molecular changes via neurotransmitters in the brain
  • the neuron cell bodies themselves have some connection to the memory and control over the development and sustainment of synapses.
  • “Long-term memory is not stored at the synapse,”
  • part of memory is stored within the cells (neurons) themselves, and that they are using this memory storage to determine how many synapses to form and where.
  • Long-term memory is a function of the growth of new synaptic connections caused by the serotonin
  • As long-term memories are formed, the brain creates new proteins that are involved in making new synapses. If that process is disrupted — for example by a concussion or other injury — the proteins may not be synthesized and long-term memories cannot form. This is why people cannot remember what happened moments before a concussion.
  •  
    How memory works.
Javier E

Technology's Toll - Impatience and Forgetfulness - NYTimes.com - 0 views

  • Some experts believe excessive use of the Internet, cellphones and other technologies can cause us to become more impatient, impulsive, forgetful and even more narcissistic
  • It may be that the immediacy of the Internet, the efficiency of the iPhone and the anonymity of the chat room change the core of who we are, is
  • Dr. Aboujaoude also asks whether the vast storage available in e-mail and on the Internet is preventing many of us from letting go, causing us to retain many old and unnecessary memories at the expense of making new ones.
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  • “The deeper a technology is woven into the patterns of everyday life, the less choice we have about whether and how we use that technology,”
  • experts suggest simply trying to curtail the amount of time you spend online. Set limits for how often you check e-mail
  • giving up technology cold turkey not only makes life logistically difficult, but also changes our ability to connect with others. “Texting and I.M.’ing my friends gives me a constant feeling of comfort,” wrote one student. “When I did not have those two luxuries, I felt quite alone and secluded from my life. Although I go to a school with thousands of students, the fact that I was not able to communicate with anyone via technology was almost unbearable.”
grayton downing

F.D.A. Seeks Tighter Control on Prescriptions for Class of Painkillers - NYTimes.com - 0 views

  • The Food and Drug Administration on Thursday recommended tighter controls on how doctors prescribe the most commonly used narcotic painkillers.
  • The drugs at issue contain a combination of hydrocodone and an over-the-counter painkiller like acetaminophen or aspirin and are sold either as generics or under brand names like Vicodin or Lortab. Doctors use the medications to treat pain from injuries, arthritis, dental extractions and other problems.
  • Medical Association and pharmacy organizations, have continued to fight the measure, citing the impact on patients.
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  • “These are very difficult tradeoffs that our society has to make,” said Dr. Woodcock. “The reason we approve these drugs is for people in pain. But we can’t ignore the epidemic on the other side.”
  • In 2011, about 131 million prescriptions for hydrocodone-containing medications were written for some 47 million patients, according to government estimates. That volume of prescriptions amounts to about five billion pills.
  • Schedule II drugs are those drugs with the highest potential for abuse that can be legally prescribed.
  • Along with changing how doctors prescribe these drugs, the classification change will also impose added storage and recordkeeping requirements on druggists. In some states, nurse practitioners and other health care professionals who can currently prescribe hydrocodone-containing drugs may no longer be able to do so.
Ellie McGinnis

How to Build a Happier Brain - Julie Beck - The Atlantic - 0 views

  • That’s why the brain today has what scientists call a negativity bias. I describe it as like Velcro for the bad, Teflon for the good. For example, negative information about someone is more memorable than positive information, which is why negative ads dominate politics. In relationships, studies show that a good, strong relationship needs at least a 5:1 ratio of positive to negative interactions.
  • Positive experiences use standard memory systems: moving from short-term buffers to long-term storage
Emilio Ergueta

Why Do We Drive on Parkways and Park on Driveways? | Mental Floss - 0 views

  • “Hey! How come we drive on parkways and park on driveways? Huh? Huh? Amiright?!”
  • The words “drive” and “park” existed long before automobiles. Remember, whenever you write or speak, you’re voting with your vocabulary. Languages evolve over time and a given term’s meaning is subject to dramatically change based on the whim of its users.
  • Metropolitan reformers—who feared the health costs of industrial growth—started establishing wooded parks within cities nationwide, hoping their trees would make urban air more breathable. As automobiles rose in popularity, special car-friendly routes were carved through such parks. Unimaginatively, these were named “parkways”.
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  • When automobiles started to overrun cities in the early twentieth century, parking areas were given over to car storage and the word began to refer to the cars themselves rather than the trees and grass they were replacing.”
  • But what about “driveways”? Well, that particular word’s been around since at least 1884 and has essentially meant the same thing ever since—namely, a path that connects somebody’s private property to a public road. However, while lengthy driveways were once the norm (and, hence, enabled more driving), today’s average specimen is little more than a dinky personal parking station.
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