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Science Daily: News Articles in Science, Health, Environment Technology

Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the latest discoveries in astronomy, anthropology, biology, chemistry, climate environment, computers, engineering, health medicine, math, physics, psychology, technology, and more -- from the world's leading universities and research organizations. id=metasummary ScienceDaily -- the Internet's premier science news web site -- brings you the latest discoveries in science, health & medicine, the environment, space, technology, and computers, from the world's leading universities and research institutions. Updated several times a day, Science Daily also offers free search of its archive of more than 80,000 stories, as well as related articles, images, videos, books, and journal references in hundreds of different topics, including astronomy, biology, chemistry, engineering, geology, mathematics, physics, and more.



New quantum structures in super-chilled helium may mirror early days of universe  

Experimental proof of a decades-old prediction opens a pathway to recreate possible conditions of the early universe here on earth.

what do you think?

2019-01-16 13:40:28



Evidence of changing seasons, rain on Saturn's moon Titan's north pole  

An image from the international Cassini spacecraft provides evidence of rainfall on the north pole of Titan, the largest of Saturn's moons. The rainfall would be the first indication of the start of a summer season in the moon's northern hemisphere.

what do you think?

2019-01-16 11:12:32



Mosquito known to transmit malaria has been detected in Ethiopia for the first time  

A type of mosquito that transmits malaria has been detected in Ethiopia for the first time, and the discovery has implications for putting more people at risk for malaria in new regions.

what do you think?

2019-01-16 09:59:06



Born to run: Just not on cocaine  

A study finds a surprising response to cocaine in a novel strain of mutant mice -- they failed to show hyperactivity seen in normal mice when given cocaine and didn't run around. In other tests, they still found cocaine appealing, but displayed an inability to shake the memory of cocaine's actions when the drug was no longer administered. The key change that blocks cocaine's stimulant effects in these mice is serotonin, not dopamine, which is responsible for producing a high.

what do you think?

2019-01-16 08:46:05



Right green for crop, environment, wallet  

Researchers found an efficient approach to managing nitrogen in agriculture and reducing its environmental impact. It's all about being green.

what do you think?

2019-01-16 08:25:22



Ketone body utilization decreases when blood flow to the heart is reduced  

Researchers have measured the ketone body utilization rate in the heart and confirmed that it decreases when the heart is in a state of reduced blood flow (myocardial ischemia).

what do you think?

2019-01-16 08:19:48



High pesticide exposure among farmers linked to poor sense of smell later  

A new study has shown an association between unusually high pesticide exposure and poor sense of smell among aging farmers.

what do you think?

2019-01-16 07:10:22



Neurofeedback helps to control learning success  

Those who regulate their brain rhythm themselves can release capacities to learn new things.

what do you think?

2019-01-16 07:02:39



New insights into what Neolithic people ate in Southeastern Europe  

New research has shed new light on the eating habits of Neolithic people living in southeastern Europe using food residues from pottery extracts dating back more than 8,000 years.

what do you think?

2019-01-16 06:54:20



Following heart health guidelines also reduces diabetes risk  

You've probably heard that things like staying active, eating healthy and keeping your blood pressure in check can help your heart, and a new study finds that following a set of seven lifestyle factors can also drastically reduce your risk of developing diabetes.

what do you think?

2019-01-16 06:13:43



Ocean giant gets a health check: Combination blood, tissue test reveals whale shark diets  

Whale sharks, the world's largest fish, likely endure periods of starvation and may eat more plants than previously thought, according to the first results of a new health check. Ocean scientists now have a powerful, simple tool to discover the diets, migrations, and conservation needs of this endangered species.

what do you think?

2019-01-16 05:28:24



The pace at which the world's permafrost soils are warming  

Global warming is leaving more and more apparent scars in the world's permafrost regions. As the new global comparative study conducted by the international permafrost network GTN-P shows, in all regions with permafrost soils the temperature of the frozen ground at a depth of more than 10 meters rose by an average of 0.3 degrees Celsius between 2007 and 2016 -- in the Arctic and Antarctic, as well as the high mountain ranges of Europe and Central Asia.

what do you think?

2019-01-16 05:09:48



New AI can detect urinary tract infections  

New AI could identify and help reduce one of the top causes of hospitalization for people living with dementia: urinary tract infections (UTI).

what do you think?

2019-01-16 03:52:49



Personality type could shape attitudes toward body weight of others, researchers say  

Researchers found that personality traits have significant bearing on a person's attitudes toward obesity, their implicit theories of weight and their willingness to engage in derisive fat talk or weight discrimination.

what do you think?

2019-01-16 03:40:40



Athletes should build neck strength to reduce concussion risk, researchers recommend  

Researchers have proposed a way to mitigate risk for football and soccer players and others at risk of concussion: Protect your head with neck-strengthening exercises in the pre-season. New research examines previous studies on the role that the neck's strength, size and posture play in reducing concussion risk.

what do you think?

2019-01-16 03:02:32



Genes reveal clues about people's potential life expectancy  

Scientists say they can predict whether a person can expect to live longer or die sooner than average, by looking at their DNA. Experts have analyzed the combined effect of genetic variations that influence lifespan to produce a scoring system. People who score in the top ten per cent of the population might expect to live up to five years longer than those who score in the lowest ten per cent, they say.

what do you think?

2019-01-16 02:25:04



Dry-cured ham bones -- a source of heart-healthy peptides?  

Drinking bone broth is a recent diet fad that proponents claim fights inflammation, eases joint pain and promotes gut health. Simmering animal bones in water releases collagen and other proteins into the broth that may have health benefits, although more research is needed to validate these claims. Now, a new study has shown that ham bones contain peptides that could have cardioprotective effects.

what do you think?

2019-01-16 01:58:41



Differences among brain neurons that coincide with psychiatric conditions  

It's no surprise to scientists that variety is the very essence of biology, not just the seasoning, but most previous studies of key brain cells have found little variability in a common cell process that involves how genetic information is read and acted on.

what do you think?

2019-01-16 01:57:43



Urbanization may hold key to tiger survival  

A new study says the future of tigers in Asia is linked the path of demographic transition -- for humans.

what do you think?

2019-01-16 01:38:01



Using satellites to measure rates of ice mass loss in glaciers  

Researchers have investigated all glacial areas in South America in more detail than ever before, from the tropical areas to the subpolar regions. Their two major findings are that the highest rate of mass loss is in the Patagonian ice sheet, and that the glaciers in the tropics have lost considerably less mass than previously projected, although this is not the good news which it might appear at first sight.

what do you think?

2019-01-16 01:07:23



New immune response regulators  

Researchers have discovered new proteins that regulate T cells in the human immune system. Some of these proteins can provide possible new targets for drug development in treating immune-mediated diseases.

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2019-01-15 21:57:49



Power stations driven by light  

The smallest building blocks within the power stations of organisms which get their energy directly from the sun are basically miniature reactors surrounded by collectors which capture photons and forward them to the center. The close correlation between structure and interaction of the components boosts productivity, a strategy which researchers are using for increasing the efficiency of solar technology.

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2019-01-15 21:47:03



A microbial hot spring in your basement  

Microbes that thrive in some of the most extreme places on Earth have discovered another cozy place to live -- inside homes across the United States.

what do you think?

2019-01-15 20:28:28



Mathematical model can improve our knowledge on cancer  

Researchers have developed a new mathematical tool, which can improve our understanding of what happens when cells lose their polarity (direction) in diseases such as cancer. The result is advancing our understanding of how the fertilized egg cell develops into a complete organism. Biological shapes, like individual organs or an entire body, can be reproduced or maintained with great accuracy, just like in the embryonic development or during the adult stage.

what do you think?

2019-01-15 20:15:23



Assessing the performance of multiple influenza forecasting models  

In what the authors believe is the first documented comparison of several real-time infectious disease forecasting models by different teams across many seasons, five research groups report this week that a majority of models consistently showed higher accuracy than historical baseline models.

what do you think?

2019-01-15 20:12:13



New zoning tool provides global topographic datasets in minutes  

With the increased availability of remote sensing technologies, scientists now have access to high-resolution datasets on Earth's surface properties at the global scale. As a result, an international team of scientists, has created the first comprehensive high resolution map of Earth's floodplains.

what do you think?

2019-01-15 20:02:21



Vaccine-preventable infections in pediatric transplant patients  

Children who receive solid organ transplants are hospitalized due to vaccine-preventable infections at rates that are significantly higher than the general population.

what do you think?

2019-01-15 19:40:44



Unraveling threads of bizarre hagfish's explosive slime  

Biologists have modeled the hagfish's gag-inducing defense mechanism mathematically.

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2019-01-15 19:35:16



Part-time working mothers with flexible schedules end up doing more work without pay  

Flexible schedules cause part-time working mothers to work longer without pay.

what do you think?

2019-01-15 17:55:10



Idled farmland presents habitat restoration opportunities in San Joaquin Desert  

Most of the native habitat in California's San Joaquin Desert has been converted to row crops and orchards, leaving 35 threatened or endangered species confined to isolated patches of habitat. A new study looked at the conservation potential of marginal farmland in the San Joaquin Desert and found that restoration of fallowed farmland could play a crucial role in habitat protection and restoration strategies for the blunt-nosed leopard lizard and other endangered species.

what do you think?

2019-01-15 16:43:25



Mojave rattlesnakes' life-threatening venom is more widespread than expected  

It was thought that Mojave rattlesnakes with hemorrhagic venom only lived in Arizona, but new research documents hemorrhagic and neurotoxic venom types throughout the US and Mexico, and even hybrid venom in which one snake exhibits both types.

what do you think?

2019-01-15 15:20:39



Pore size influences nature of complex nanostructures  

In new research that could help inform development of new materials, chemists have found that the empty space ('pores') present in two-dimensional molecular building blocks fundamentally changes the strength of these van der Waals forces, and can potentially alter the assembly of sophisticated nanostructures.

what do you think?

2019-01-15 15:18:23



Pioneering surgery restores movement to children paralyzed by acute flaccid myelitis  

An innovative and complex surgery involving nerve transfers is restoring movement to young patients with paralysis caused by acute flaccid myelitis.

what do you think?

2019-01-15 15:14:03



MANF identified as a rejuvenating factor in parabiosis  

Older mice who are surgically joined with young mice in order to share a common bloodstream get stronger and healthier, making parabiosis one of the hottest topics in age research. Researchers now report that MANF (mesencephalic astrocyte-derived neurotrophic factor) is one of the factors responsible for rejuvenating the transfused older mice. Researchers also show the naturally occurring, evolutionarily conserved repair mechanism protects against liver damage in aging mice and extends lifespan

what do you think?

2019-01-15 15:12:56



Scientists have identified a bone marrow backup system  

New research has identified a backup for an important biological system -- the hematopoietic system, whose adult stem cells constantly replenish the body's blood supply.

what do you think?

2019-01-15 14:25:11



Brilliant glow of paint-on semiconductors comes from ornate quantum physics  

A new wave of semiconductors that can be painted on is on the horizon. It bears the promise of revolutionizing lighting all over again and of transforming solar energy. Ornate quantum particle action, revealed here, that drives the new material's properties defies the workings of established semiconductors.

what do you think?

2019-01-15 13:57:59



Genome doubling, cell size and novelty  

Scientists have examined the effects of genome doubling on cell biology and the generation of novelty in plants.

what do you think?

2019-01-15 13:42:45



How Candida albicans exploits lack of oxygen to cause disease  

Scientists have shown how the yeast Candida albicans can modulate and adapt to low oxygen levels in different body niches to cause infection and to harm the host. Studying adaption to hypoxic or anoxic niches is particularly fruitful, since it helps us to understand the pathogenicity of C. albicans and promotes the development of better therapy approaches.

what do you think?

2019-01-15 13:31:45



Difficulties with audiovisual processing contributes to dyslexia in children  

A neuroimaging study could help develop tests for early identification of dyslexia.

what do you think?

2019-01-15 13:17:37



Teen brain volume changes with small amount of cannabis use, study finds  

At a time when several states are moving to legalize recreational use of marijuana, new research shows that concerns about the drug's impact on teens may be warranted. The study shows that even a small amount of cannabis use by teenagers is linked to differences in their brains.

what do you think?

2019-01-15 13:15:22



Poisons or medicines? Cyanobacteria toxins protect tiny lake dwellers from parasites  

The cyanobacteria blooms that plague western Lake Erie each summer are both an unsightly nuisance and a potential public health hazard, producing liver toxins that can be harmful to humans and their pets.

what do you think?

2019-01-15 13:13:15



Gene expression study sheds new light on African Salmonella  

Scientists have completed one of the largest bacterial comparative gene expression studies to date and taken another step forward in understanding the African Salmonella strain that is currently killing around 400,000 people each year in sub-Saharan Africa.

what do you think?

2019-01-15 13:01:14



Fever alters immune cells so they can better reach infections  

Fever is known to help power up our immune cells, and scientists have new evidence explaining how. They found in mice that fever alters surface proteins on immune cells like lymphocytes to make them better able to travel via blood vessels to reach the site of infection.

what do you think?

2019-01-15 12:46:17



3,000-year-old eastern North American quinoa discovered in Ontario  

A mass of charred seeds found while clearing a home construction site in Brantford, Ontario, has been identified as ancient, domesticated goosefoot (C. berlandieri spp. jonesianum), a form of quinoa native to Eastern North America. The seeds date back to 900 B.C., and have never previously been found north of Kentucky this early in history.

what do you think?

2019-01-15 12:27:35



B-group vitamins can improve concentration among people with first episode psychosis  

A new study explored the impact of increasing a person's intake of vitamins B12, B6, and folic acid [vitamin B9] after studies in people with schizophrenia revealed that increased intake of these vitamins could decrease patients' levels of an amino acid called homocysteine and improve their symptoms.

what do you think?

2019-01-15 12:15:34



Back to the future with CD4 testing: Improving HIV care in low- and middle-income countries  

A practical resource-based public health approach for the rapid initiation of antiretroviral therapy in HIV-infected individuals living in low- and middle-income countries could save thousands of lives.

what do you think?

2019-01-15 12:07:59



A new way by which the human brain marks time  

With a little help from HBO's 'Curb Your Enthusiasm,' neurobiologists have uncovered a key component of how the human brain marks time.

what do you think?

2019-01-15 11:55:05



'Outdated' management plan increases risks to Alaska's large carnivores  

Alaskan wildlife management that prioritizes reducing bear and wolf populations so hunters can kill more moose, caribou and deer is both backward and lacks scientific monitoring.

what do you think?

2019-01-15 11:22:20



Sleeping less than six hours a night may increase cardiovascular risk  

People who sleep less than six hours a night may be at increased risk of cardiovascular disease compared with those who sleep between seven and eight hours, suggests a new study. Poor quality sleep increases the risk of atherosclerosis -- plaque buildup in the arteries throughout the body -- according to the study.

what do you think?

2019-01-15 11:12:30



New conservation practice could reduce nitrogen pollution in agricultural drainage water  

In a new study, scientists have estimated that a new conservation practice known as saturated buffers could reduce nitrogen from agricultural drainage by 5 to 10 percent.

what do you think?

2019-01-15 10:56:19



Health effects of metabolic 'magic bullet' protein  

Researchers have developed a new system that lets them study in more detail than ever exactly how, where and when the metabolic protein AMPK carries out its molecular and therapeutic functions.

what do you think?

2019-01-15 09:57:48



Central Texas salamanders, including newly identified species, at risk of extinction  

Biologists have discovered three new species of groundwater salamander in Central Texas, including one living west of Austin that they say is critically endangered. They also determined that an already known salamander species near Georgetown is much more endangered than previously thought. They warn that more severe droughts caused by climate change and increasing water use in Central Texas have left groundwater salamanders 'highly vulnerable to extinction.'

what do you think?

2019-01-15 09:52:25



Quality of life in adolescents recovering from sports-related concussion or fracture  

Researchers studied health-related quality of life in adolescents with sports-related concussion or extremity fracture during their recovery periods.

what do you think?

2019-01-15 09:49:09



Einstein-de Haas effect has a central role in ultrafast demagnetization processes  

The Einstein-de Haas effect, first demonstrated more than a century ago, provides an intriguing link between magnetization and rotation in ferromagnetic materials. Researchers have now found that the effect has also a central role in ultrafast processes that happen at the sub-picosecond timescale -- and thus deliver fresh insight into materials that might form the basis for novel devices.

what do you think?

2019-01-15 09:15:59



Genomic study finds Haida Gwaii's northern goshawks are highly distinct and at-risk  

Haida Gwaii's small population of northern goshawks -- already of great concern to conservationists -- are the last remnant of a highly distinct genetic cluster of the birds, according to a new genomic analysis.

what do you think?

2019-01-15 09:01:07



Light up logic: Engineers perform computational logic with light  

For the first time, researchers performed logic operations -- the basis of computation -- with a chemical device using electric fields and ultraviolet light. The device and the pioneering methods used open up research possibilities including low-power, high-performance computer chips.

what do you think?

2019-01-15 08:38:26



How fasting can improve overall health  

Researchers found evidence that fasting affects circadian clocks in the liver and skeletal muscle, causing them to rewire their metabolism, which can ultimately lead to improved health and protection against aging-associated diseases.

what do you think?

2019-01-15 08:14:22



Engineered T cells promote long-term organ transplant acceptance  

Organ transplant rejection is a major problem in transplantation medicine. Suppressing the immune system to prevent organ rejection, however, opens the door to life-threatening infections. Researchers have now discovered a molecular approach preventing rejection of the transplanted graft while simultaneously maintaining the ability to fight against infections.

what do you think?

2019-01-15 07:31:09



Bear necessities: New study highlights importance of water resources for Andean bears  

A new study highlights the importance of water for Andean bears living in the mountain forests of Peru. The study found that bears exhibit tree-rubbing behavior on shrubs and trees that are located on trails near water holes. The discovery that this behavior occurs near water holes could have implications for future conservation programs.

what do you think?

2019-01-15 07:21:19



Serious problems with forensic software  

New research finds significant flaws in recently released forensic software designed to assess the age of individuals based on their skeletal remains. The researchers report that, on average, the software's age estimates are off by more than 14 years.

what do you think?

2019-01-15 07:12:27



Surge protector: A novel approach to suppressing therapy-induced tumor growth and recurrence  

Dead and dying cancer cells killed by conventional cancer treatments paradoxically trigger inflammation that promotes tumor growth and metastasis. Researchers now describe a novel approach to suppressing chemotherapy-induced tumor growth in an ovarian cancer model.

what do you think?

2019-01-15 07:03:18



Researchers raise bar for successful management of severe atopic dermatitis  

A team of investigators has identified comprehensive guidelines for managing severe atopic dermatitis (AD), the most common form of eczema.

what do you think?

2019-01-15 06:57:02



History of North African date palm  

Genome analysis reveals that North African date palms are a hybrid between cultivated date palms from the Middle East and a different, wild species of palm that grows on the island of Crete and in small areas of Southern Turkey. These findings shed new light on the evolutionary history of one of the crop.

what do you think?

2019-01-15 06:55:19



Medical detection dogs help diabetes patients regulate insulin levels  

New research has found that the best trained alert dogs have the potential to vastly improve the quality of life of people living with Type 1 diabetes.

what do you think?

2019-01-15 06:47:11



Protein alteration controls cell's response to stress, immunity and lifespan  

Scientists have revealed a key mechanism in worms that is involved in controlling the cell's response to stress, a study reports.

what do you think?

2019-01-15 06:45:04



Breakthrough in ice-repelling materials  

Icy weather is blamed for multibillion dollar losses every year in the United States, including delays and damage related to air travel, infrastructure and power generation and transmission facilities. Now researchers have reported creating a durable silicone polymer coating capable of repelling ice from any surface.

what do you think?

2019-01-15 06:25:13



Potential therapeutic target for amyotrophic lateral sclerosis  

New research has revealed that the protein TDP-43 regulates a gene called Stathmin2 (STMN2). STMN2 shows promise as a therapeutic target and could be the first biomarker ALS, which is extremely difficult to diagnose and treat.

what do you think?

2019-01-15 06:24:08



Defective glial cells can push neurons toward Parkinson's disease  

A team of scientists have discovered that astrocytes are linked to the buildup of a toxic protein that is one the hallmarks of Parkinson's disease. The work suggests an important role for glial cells in Parkinson's disease and offers potential new targets for developing therapies.

what do you think?

2019-01-15 06:17:36



Marine bacterium sheds light on control of toxic metals  

An ocean-dwelling bacterium has provided fresh insights into how cells protect themselves from the toxic effects of metal ions such as iron and copper. Although essential to life, metal ions can also generate reactive oxygen species (ROS) -- highly reactive molecules that damage cells as they try to form bonds with other molecules. In humans, reactive oxygen species are linked to aging and also to diseases such as cancers.

what do you think?

2019-01-15 05:39:08



Tool for nonstatisticians automatically generates models that glean insights from complex datasets  

Researchers are hoping to advance the democratization of data science with a new tool for nonstatisticians that automatically generates models for analyzing raw data.

what do you think?

2019-01-15 05:14:31



Experiments detect entropy production in mesoscopic quantum systems  

One of the most important aims of contemporary scientific research is finding out what makes the production of entropy predominate. This aim explains the current interest in studying mesoscopic systems, which are not as small as individual atoms but nevertheless display well-defined quantum behavior.

what do you think?

2019-01-15 05:13:02



Epigenetic change causes fruit fly babies to inherit diet-induced heart disease  

Scientists have identified an epigenetic marker and two genes that caused heart failure in the children and grandchildren of fruit flies with high-fat-diet-induced heart dysfunction. Reversing the epigenetic modification or over-expressing the two genes protected subsequent generations from the negative heart effects of their parents' diet.

what do you think?

2019-01-15 04:16:29



Multimaterial 3D printing used to develop fast response stiffness-tunable soft actuator  

Researchers have designed and fabricated a fast-response, stiffness tunable (FRST) soft actuator which is able to complete a softening-stiffening cycle within 32 seconds.

what do you think?

2019-01-15 04:10:56



Effects of linoleic acid on inflammatory response depend on genes  

The effects of linoleic acid on the human body are largely dependent on genes, a new study shows. Linoleic acid is an essential fatty acid. People carrying different variants of the FADS1 gene had a different inflammatory response and different changes in their fasting glucose levels when supplementing their diet by linoleic acid rich sunflower oil. This was the first time these associations were studied in humans.

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2019-01-15 04:05:50



Gene-editing tool CRISPR/Cas9 shown to limit impact of certain parasitic diseases  

Researchers have successfully used CRISPR/Cas9 to limit the impact of schistosomiasis and liver fluke infection, which affects more than a quarter of a billion people in Southeast Asia, sub-Saharan Africa, and Latin America.

what do you think?

2019-01-15 04:04:51



New effect in the interaction of plasmas with solids discovered  

If a plasma comes in contact with a solid, under certain circumstances the surface is changed fundamentally and permanently. Researchers have now discovered a surprising effect, in which the electronic properties of the solid material, such as its electrical conductivity, can be changed in a controlled, extremely fast and reversible manner, by ion impact.

what do you think?

2019-01-15 03:56:22



Sugary stent eases suturing of blood vessels  

A team has concocted a sugar-heavy stent to reduce the margin of error in a delicate surgical procedure.

what do you think?

2019-01-15 03:52:44



Diving deeper into developmental dyslexia  

Men with dyslexia have altered structural connections between the thalamus and auditory cortex on the left side of the brain, new research reveals. The study extends similar observations of the dyslexic visual system and highlights the importance of early sensory processing for reading proficiency.

what do you think?

2019-01-15 03:46:09



Big genome found in tiny forest defoliator  

Scientists have sequenced the genomes of the European gypsy moth and its even more destructive cousin, the Asian gypsy moth.

what do you think?

2019-01-15 03:42:15



Engineers 3D print smart objects with 'embodied logic'  

Using stimuli-responsive materials and geometric principles, engineers have designed structures that have 'embodied logic.' Through their physical and chemical makeup alone, they are able to determine which of multiple possible responses to make in response to their environment.

what do you think?

2019-01-15 03:39:50



Keeping roads in good shape reduces greenhouse gas emissions  

Keeping road pavement in good shape saves money and energy and reduces greenhouse gas emissions, more than offsetting pollution generated during road construction, according to a new study.

what do you think?

2019-01-15 03:33:20



Honey bee parasites, varroa mites, feed on fatty organs, not blood  

Among the many threats to honey bee colonies around the world, one stands alone: the parasitic mite, Varroa destructor. For decades, researchers assumed that varroa mites feed on blood, like many of their mite and tick cousins. But new research suggests that varroa mites have a voracious appetite for a honey bee organ called the fat body, which serves many of the same vital functions carried out by the human liver.

what do you think?

2019-01-15 03:21:05



Bike share programs show infrequent helmet use, little disparity among neighborhoods  

People riding free-floating bike share rentals in Seattle are wearing helmets infrequently, according to a new analysis. Only 20 percent of bike share riders wore helmets in the study, while more than 90 percent of cyclists wore helmets while riding their own bikes. Different research on the free-floating bike share systems showed that bikes were usually available in all Seattle neighborhoods across economic, racial and ethnic lines. However, more bikes were located in more-advantaged neighborho

what do you think?

2019-01-15 03:08:03



Black mangroves' impact on the salt marsh food web  

Warmer temperatures are causing more tropical species to move northward. Among these are black mangroves, whose abundance is steadily increasing in the northern Gulf of Mexico. A new article examines how this tropical species is impacting the salt marsh food web.

what do you think?

2019-01-15 03:03:50



Nerve cells made from skin cells are a valid lab model for studying disease  

Researchers have shown that cells from mice that have been induced to grow into nerve cells using a previously published method have molecular signatures matching neurons that developed naturally in the brain.

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2019-01-15 02:54:16



Scientists identify two new species of fungi in retreating Arctic glacier  

Two new species of fungi have made an appearance in a rapidly melting glacier on Ellesmere Island in the Canadian Arctic, just west of Greenland.

what do you think?

2019-01-15 02:54:05



Dissidents under authoritarian rule: Staying anonymous yet trustworthy  

Minority and dissident communities face a perplexing challenge in countries with authoritarian governments. They need to remain anonymous to avoid persecution, but also must establish a trustworthy identity in their communications. An interdisciplinary group of researchers has designed an application to meet both of these requirements.

what do you think?

2019-01-15 02:51:56



Animals may get used to drones  

A new study shows that over time, bears get used to drones. Previous work indicated that animals behave fearfully or show a stress response near drone flights. Using heart monitors to gauge stress, however, researchers here found that bears habituated to drones over a 3 to 4-week period and remained habituated.

what do you think?

2019-01-15 02:49:40



Hindering melanoma metastasis with an FDA-approved drug  

A drug approved by the FDA 65 years ago for blood pressure control may aid in preventing cancer from spreading to distant organs. New research revealed that this drug disrupted formation of a fertile environment for metastasis in an animal model by protecting healthy cells from harmful vesicles released by tumors.

what do you think?

2019-01-15 02:33:22



Understanding physics could lead to big gains in shale oil recovery  

Oil companies are missing out on vast sums of recoverable oil in unconventional reservoirs, according to experts.

what do you think?

2019-01-15 02:22:29



Memory of last meal influences when, how much rats eat next  

Researchers have identified cells in the brains of male rats that appear to control future food intake by preserving memories of past meals. The study lends support to the idea of boosting meal memories as a strategy for managing overeating.

what do you think?

2019-01-15 02:21:27



The 17 different ways your face conveys happiness  

Human beings can configure their faces in thousands and thousands of ways to convey emotion, but only 35 expressions actually get the job done across cultures, a new study has found.

what do you think?

2019-01-15 02:19:10



Stroke drug may also prevent Alzheimer's disease  

Researchers have discovered that a drug currently being developed to treat stroke patients could also prevent Alzheimer's disease. The study shows that the genetically engineered protein 3K3A-APC protects the brains of mice with Alzheimer's-like symptoms, reducing the buildup of toxic peptides and preventing memory loss.

what do you think?

2019-01-15 02:18:02



New evidence of superconductivity at near room temperature  

Researchers have taken a major step toward reaching one of the most sought-after goals in physics: room temperature superconductivity.

what do you think?

2019-01-15 02:17:15



Helping anxious students excel on science exams  

A new study released today reveals that helping lower-income high school freshman to regulate their test-taking anxiety can cut their biology course failure rates in half. The study, published in Proceedings of the National Academy of Sciences and conducted by Barnard College President Sian Leah Beilock and her research team found that brief pre-exam de-stressing strategies could reduce the performance gap often seen between lower-income and higher income students.

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2019-01-15 01:52:22



Scientists make strides in creation of clinical-grade bone  

A team of scientists has made valuable progress toward creating clinical-grade cells for treatment of bone disease and injury. In their study, the team identified two types of growth media that could support effective expansion of mesenchymal progenitor (MP) cells from stem cells in a clinically compatible, Good Manufacturing Practice (GMP) setting.

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2019-01-15 01:52:20



11,500-year-old animal bones in Jordan suggest early dogs helped humans hunt  

11,500 years ago in what is now northeast Jordan, people began to live alongside dogs and may also have used them for hunting, a new study shows. The archaeologists suggest that the introduction of dogs as hunting aids may explain the dramatic increase of hares and other small prey in the archaeological remains at the site.

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2019-01-15 01:40:14



When the body's in overdrive, this liver hormone puts the brakes on metabolism  

Researchers have identified a hormone produced by the liver that tells the body to downshift its metabolism when it's expending a lot of energy.

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2019-01-14 21:32:45



More accurate leukemia diagnosis expected as researchers refine leukemia classification  

New research means more than 90 percent of the most common cases of childhood cancer can now be classified by subtype, an advance likely to fuel precision medicine.

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2019-01-14 19:46:08



Herpes viruses and tumors evolved to learn how to manipulate the same ancient RNA  

Herpes viral infections use the ancient genetic material found in the human genome to proliferate, mimicking the same process tumors have been found to manipulate, Mount Sinai researchers have shown for the first time. These observations provide further insight about how herpes viruses can manipulate the immune system in ways that may drive neurodegenerative diseases like Alzheimer's, according to the study, published in Nature Communications in January.

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2019-01-14 18:01:35






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