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Study: X-Rays surrounding ‘Magnificent 7’ may be traces of sought-after particle

January 21, 2021 by Zakia

A new study, led by a theoretical physicist at the US Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), suggests that never-before-observed particles called axions may be the source of unexplained, high-energy X-ray emissions surrounding a group of neutron stars.

First theorized in the 1970s as part of a solution to a fundamental particle physics problem, axions are expected to be produced at the core of stars, and to convert into particles of light, called photons, in the presence of a magnetic field.

Axions may also make up dark matter – the mysterious stuff that accounts for an estimated 85 percent of the total mass of the universe, yet we have so far only seen its gravitational effects on ordinary matter. Even if the X-ray excess turns out not to be axions or dark matter, it could still reveal new physics. [Read more…] about Study: X-Rays surrounding ‘Magnificent 7’ may be traces of sought-after particle

Filed Under: News, Universe Tagged With: axions, berkeley, dark, excess, expected, light, magnetic, magnificent, matter, neutron, particle, particles, physics, produced, researchers, safdi, stars, study, university, x-ray

One small alcoholic drink a day is linked to an increased risk of atrial fibrillation

January 20, 2021 by Zakia

A study of nearly 108,000 people has found that people who regularly drink a modest amount of alcohol are at increased risk of atrial fibrillation, a condition where the heart beats in an abnormal rhythm.

The study, published today (Wednesday) in the European Heart Journal, found that, compared to drinking no alcohol at all, just one alcoholic drink a day was linked to a 16% increased risk of atrial fibrillation over an average (median) follow-up time of nearly 14 years.

This means that while four teetotallers in 100 might develop atrial fibrillation over the period of the study, five per 100 might develop the condition if they consumed alcohol starting with slightly more than an alcoholic drink a week and more than 75% of them consumed up to one drink a day. [Read more…] about One small alcoholic drink a day is linked to an increased risk of atrial fibrillation

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    Stretching more effective than walking to lower high blood pressure: USask studyA new University of Saskatchewan (USask) study has found that stretching is superior to brisk walking for reducing blood pressure in people with high blood pressure or who are at risk of developing elevated blood pressure levels. Walking has long been the prescription of choice for physicians trying to help…
    Tags: study, people, news, health
  • Physical distancing policies ‘not enough to protect lower-income people’
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    Physical distancing policies ‘not enough to protect lower-income people’A new Boston University School of Public Health study of the first four months of America's coronavirus epidemic, published in the journal Nature Human Behaviour, shows that physical distancing (also called "social distancing") policies had little effect on lower income people still needing to leave their homes to go to work…
    Tags: people, study, health, news
  • ECDC and WHO call for improved HIV testing in Europe
    31
    ECDC and WHO call for improved HIV testing in EuropeThe number of people living with undiagnosed HIV is increasing in the WHO European Region. According to data published today by ECDC and the WHO/Europe, more than 136 000 people were newly diagnosed in 2019 – roughly 20% of these diagnoses were in the EU/EAA and 80% in the eastern…
    Tags: people, news, health

Filed Under: Health, News Tagged With: alcohol, atrial, consumption, drink, fibrillation, heart, increased, people, risk, study

Want a hot stock tip? Avoid this type of investment fund

January 20, 2021 by Zakia

“Buy low and sell high” says the old adage about investing in the stock market. But a relatively new type of investment fund is luring unsophisticated investors into buying when values are at their highest, resulting in losses almost immediately, a new study has found.

The lure? Buying into trendy investment areas like cannabis, cybersecurity and work-from-home businesses.

“As soon as people buy them, these securities underperform as the hype around them vanishes,” said Itzhak Ben-David, co-author of the study and professor of finance at The Ohio State University’s Fisher College of Business. [Read more…] about Want a hot stock tip? Avoid this type of investment fund

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  • How mobile apps grab our attention
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    How mobile apps grab our attentionAs part of an international collaboration, Aalto University researchers have shown that our common understanding of what attracts visual attention to screens, in fact, does not transfer to mobile applications. Despite the widespread use of mobile phones and tablets in our everyday lives, this is the first study to empirically…
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Filed Under: Industry, News Tagged With: broad-based, etfs, funds, investors, specialized, stocks, study

Inexpensive battery charges rapidly for electric vehicles, reduces range anxiety

January 19, 2021 by Keyam

Range anxiety, the fear of running out of power before being able to recharge an electric vehicle, may be a thing of the past, according to a team of Penn State engineers who are looking at lithium iron phosphate batteries that have a range of 250 miles with the ability to charge in 10 minutes.

“We developed a pretty clever battery for mass-market electric vehicles with cost parity with combustion engine vehicles,” said Chao-Yang Wang, William E. Diefenderfer Chair of mechanical engineering, professor of chemical engineering and professor of materials science and engineering, and director of the Electrochemical Engine Center at Penn State. “There is no more range anxiety and this battery is affordable.”

The researchers also say that the battery should be good for 2 million miles in its lifetime.

They report today (Jan. 18) in Nature Energy that the key to long-life and rapid recharging is the battery’s ability to quickly heat up to 140 degrees Fahrenheit, for charge and discharge, and then cool down when the battery is not working.

“The very fast charge allows us to downsize the battery without incurring range anxiety,” said Wang.

The battery uses a self-heating approach previously developed in Wang’s center. The self-heating battery uses a thin nickel foil with one end attached to the negative terminal and the other extending outside the cell to create a third terminal. Once electrons flow it rapidly heats up the nickel foil through resistance heating and warm the inside of the battery. Once the battery’s internal temperature is 140 degrees F, the switch opens and the battery is ready for rapid charge or discharge.

Wang’s team modeled this battery using existing technologies and innovative approaches. They suggest that using this self-heating method, they can use low-cost materials for the battery’s cathode and anode and a safe, low-voltage electrolyte. The cathode is thermally stable, lithium iron phosphate, which does not contain any of the expensive and critical materials like cobalt. The anode is made of very large particle graphite, a safe, light and inexpensive material.

Because of the self-heating, the researchers said they do not have to worry about uneven deposition of lithium on the anode, which can cause lithium spikes that are dangerous.

“This battery has reduced weight, volume and cost,” said Wang. “I am very happy that we finally found a battery that will benefit the mainstream consumer mass market.”

According to Wang, these smaller batteries can produce a large amount of power upon heating — 40 kilowatt hours and 300 kilowatts of power. An electric vehicle with this battery could go from zero to 60 miles per hour in 3 seconds and would drive like a Porsche, he said.

“This is how we are going to change the environment and not contribute to just the luxury cars,” said Wang. “Let everyone afford electric vehicles.”

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  • UCF researcher is working to extend battery life in smartphones, electric cars
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    UCF researcher is working to extend battery life in smartphones, electric carsA University of Central Florida researcher is working to make portable devices and electric vehicles stay charged longer by extending the life of the rechargeable lithium-ion batteries powering them. Assistant Professor Yang Yang is doing this by making the batteries more efficient, with some of his latest work focusing on…
    Tags: battery, electric, vehicles, news

Filed Under: Engineering, News Tagged With: battery, electric, engineering, vehicles

Artificial Intelligence beats us in chess, but not in memory

January 18, 2021 by Zakia

In the last decades, Artificial Intelligence has shown to be very good at achieving exceptional goals in several fields. Chess is one of them: in 1996, for the first time, the computer Deep Blue beat a human player, chess champion Garry Kasparov.

A new piece of research shows now that the brain strategy for storing memories may lead to imperfect memories, but in turn, allows it to store more memories, and with less hassle than AI. The new study, carried out by SISSA scientists in collaboration with Kavli Institute for Systems Neuroscience & Centre for Neural Computation, Trondheim, Norway, has just been published in Physical Review Letters.

Neural networks, real or artificial, learn by tweaking the connections between neurons. Making them stronger or weaker, some neurons become more active, some less, until a pattern of activity emerges. This pattern is what we call “a memory”. The AI strategy is to use complex long algorithms, which iteratively tune and optimize the connections. [Read more…] about Artificial Intelligence beats us in chess, but not in memory

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  • New deep learning models: Fewer neurons, more intelligence
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    New deep learning models: Fewer neurons, more intelligenceArtificial intelligence has arrived in our everyday lives – from search engines to self-driving cars. This has to do with the enormous computing power that has become available in recent years.  But new results from AI research now show that simpler, smaller neural networks can be used to solve certain…
    Tags: neural, intelligence, artificial, networks, neurons, ai, news

Filed Under: Engineering, News Tagged With: active, algorithms, artificial, based, biologically, brain, capacity, connections, memories, neural, neurons, pattern, plausible, retrieval, strategy

Stretching more effective than walking to lower high blood pressure: USask study

January 18, 2021 by Zakia

A new University of Saskatchewan (USask) study has found that stretching is superior to brisk walking for reducing blood pressure in people with high blood pressure or who are at risk of developing elevated blood pressure levels.

Walking has long been the prescription of choice for physicians trying to help their patients bring down their blood pressure. High blood pressure (hypertension) is a leading risk factor for cardiovascular disease and among the top preventable risk factors affecting overall mortality.

This new finding, published December 18, 2020 in the Journal of Physical Activity and Health, shows that stretching should be part of a well-rounded treatment plan for people wrestling with hypertension. [Read more…] about Stretching more effective than walking to lower high blood pressure: USask study

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  • ECDC and WHO call for improved HIV testing in Europe
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    ECDC and WHO call for improved HIV testing in EuropeThe number of people living with undiagnosed HIV is increasing in the WHO European Region. According to data published today by ECDC and the WHO/Europe, more than 136 000 people were newly diagnosed in 2019 – roughly 20% of these diagnoses were in the EU/EAA and 80% in the eastern…
    Tags: people, news, health
  • Physical distancing policies ‘not enough to protect lower-income people’
    36
    Physical distancing policies ‘not enough to protect lower-income people’A new Boston University School of Public Health study of the first four months of America's coronavirus epidemic, published in the journal Nature Human Behaviour, shows that physical distancing (also called "social distancing") policies had little effect on lower income people still needing to leave their homes to go to work…
    Tags: people, study, health, news
  • One small alcoholic drink a day is linked to an increased risk of atrial fibrillation
    36
    One small alcoholic drink a day is linked to an increased risk of atrial fibrillationA study of nearly 108,000 people has found that people who regularly drink a modest amount of alcohol are at increased risk of atrial fibrillation, a condition where the heart beats in an abnormal rhythm. The study, published today (Wednesday) in the European Heart Journal, found that, compared to drinking no…
    Tags: study, people, news, health
  • Is sitting always bad for your mind? A new study suggests maybe not
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    Is sitting always bad for your mind? A new study suggests maybe notIt's generally accepted health advice that adults of all ages should sit less, move more, and engage in regular exercise to feel better and reduce the risk of chronic diseases. However, when it comes to the brain and cognition, a new study of older adults from Colorado State University suggests…
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  • Making health care more personal
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    Making health care more personalThe health care system today largely focuses on helping people after they have problems. When they do receive treatment, it’s based on what has worked best on average across a huge, diverse group of patients. Now the company Health at Scale is making health care more proactive and personalized –…
    Tags: health, people

Filed Under: Health, News Tagged With: blood, chilibeck, health, news, people, pressure, stretching, study, walking

When salespeople advocate for sellers and customers

January 15, 2021 by Zakia

Researchers from Oklahoma State University, University of Missouri, Iowa State University, and University of Georgia published a new paper in the Journal of Marketing that investigates the question of how salespeople should balance advocacy for the seller with advocacy for the customer.

The study, forthcoming in the Journal of Marketing, is titled “Salesperson Dual Agency in Price Negotiations” and is authored by Justin Lawrence, Lisa Scheer, Andrew Crecelius, and Son Lam.

How should salespeople represent both the seller and the customer when their interests diverge, as in pricing negotiations? [Read more…] about When salespeople advocate for sellers and customers

Filed Under: Industry, News Tagged With: advocacy, agency, customer, customers, discount, negotiations, sales, salespeople, salesperson, seller, sellers, university

US outlines strategies for promoting American seafood

January 15, 2021 by Zakia

The “Executive Order on Promoting American Seafood Competitiveness and Economic Growth,” issued by the Trump administration in May 2020, lays out a plan to expand the US seafood industry, especially aquaculture, and enhance American seafood competitiveness in the global market.

The goals of the directive are focused largely on growth and expansion of the industry, which includes wild-caught fisheries and farm-raised products, as well as recreation, processing and other industries that rely on fishing.

“The seafood industry in general is worth about $200 billion and accounts for 2 million jobs in the United States,” said Halley E. Froehlich, a professor of fisheries and aquaculture at UC Santa Barbara, who with her colleagues finds that the executive order “ends up being a complicated and opaque ask,” given the complexity of the seafood industry and the headwinds it has been experiencing of late. [Read more…] about US outlines strategies for promoting American seafood

Filed Under: Industry, News Tagged With: aquaculture, fisheries, industry, news, seafood

Will global warming bring a change in the winds? Dust from the deep sea provides a clue

January 14, 2021 by Zakia

The westerlies – or westerly winds – play an important role in weather and climate both locally and on a global scale, by influencing precipitation patterns, impacting ocean circulation and steering tropical cyclones. So, finding a way to assess how they will change as the climate warms is crucial.

Typically, the westerlies blow from west to east across the planet’s middle latitudes. But scientists have noticed that over the last several decades, these winds are changing, migrating poleward. Research suggests this is because of climate change.

But, scientists have been debating whether the poleward movement of the westerlies will continue as temperatures and atmospheric carbon dioxide (CO2) increase further under future warming scenarios. It’s been difficult to resolve this scientific question because our knowledge of the westerlies in past warm climates has until now been limited. [Read more…] about Will global warming bring a change in the winds? Dust from the deep sea provides a clue

Filed Under: Environment, News Tagged With: change, climate, continue, dust, earth, future, global, patterns, precipitation, warming, westerlies, winckler, winds

How medical schools can transform curriculums to undo racial biases

January 14, 2021 by Zakia

Medical school curriculums may misuse race and play a role in perpetuating physician bias, a team led by Penn Medicine researchers found in an analysis of curriculum from the preclinical phase of medical education.

In a perspective piece published Tuesday in the New England Journal of Medicine, the researchers identified five key categories in which curriculum misrepresented race in class discussions, presentations, and assessments.

The authors recommend that rather than oversimplifying conversations about how race affects diseases’ prevalence, diagnosis, and treatment, medical school faculty must widen the lens to “impart an adequate and accurate understanding of the complexity of these relationships”. [Read more…] about How medical schools can transform curriculums to undo racial biases

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Filed Under: Life, News Tagged With: african, authors, biases, disease, genetic, guidelines, medical, medicine, people, racial, researchers, school

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Recent Posts

  • Teeth pendants speak of the elk’s prominent status in the Stone Age
  • 45% of adults over 65 lack online medical accounts, which could affect COVID vaccination
  • Study: X-Rays surrounding ‘Magnificent 7’ may be traces of sought-after particle
  • NASA missions unmask magnetar eruptions in nearby galaxies
  • One small alcoholic drink a day is linked to an increased risk of atrial fibrillation
  • Want a hot stock tip? Avoid this type of investment fund
  • Inexpensive battery charges rapidly for electric vehicles, reduces range anxiety
  • Better diet and glucose uptake in the brain lead to longer life in fruit flies
  • Dairy product purchasing differs in households with and without children
  • Fast food restaurant proximity likely doesn’t affect children’s weight

Most read

  • Teeth pendants speak of the elk's prominent status in the Stone Age
    Teeth pendants speak of the elk's prominent status in the Stone Age
  • 45% of adults over 65 lack online medical accounts, which could affect COVID vaccination
    45% of adults over 65 lack online medical accounts, which could affect COVID vaccination
  • Study: X-Rays surrounding 'Magnificent 7' may be traces of sought-after particle
    Study: X-Rays surrounding 'Magnificent 7' may be traces of sought-after particle
  • NASA missions unmask magnetar eruptions in nearby galaxies
    NASA missions unmask magnetar eruptions in nearby galaxies
  • One small alcoholic drink a day is linked to an increased risk of atrial fibrillation
    One small alcoholic drink a day is linked to an increased risk of atrial fibrillation
  • Want a hot stock tip? Avoid this type of investment fund
    Want a hot stock tip? Avoid this type of investment fund
  • Inexpensive battery charges rapidly for electric vehicles, reduces range anxiety
    Inexpensive battery charges rapidly for electric vehicles, reduces range anxiety
  • Better diet and glucose uptake in the brain lead to longer life in fruit flies
    Better diet and glucose uptake in the brain lead to longer life in fruit flies
  • Dairy product purchasing differs in households with and without children
    Dairy product purchasing differs in households with and without children
  • Fast food restaurant proximity likely doesn't affect children's weight
    Fast food restaurant proximity likely doesn't affect children's weight

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