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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.



Human intrusion on fruit bat habitats raises exposure risk to Hendra virus in Australia  

There is a rising risk of human and domestic animal exposure to deadly Hendra virus (HeV) carried by fruit bats in Eastern Australia due to human intrusion into their habitats, human proximity to woodlands and vegetation loss, a new study reveals.

2017-08-15 21:22:56
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Empowering patients effectively improves physician hand hygiene  

Armed with new tools, patients and parents felt empowered to remind healthcare providers to perform hand hygiene, successfully improving compliance rates, but just over half of physicians felt that patients should be reminding providers, according to a new study.

2017-08-15 21:09:48
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Seven complete specimens of new flower, all 100 million years old  

A Triceratops or Tyrannosaurus rex bulling its way through a pine forest likely dislodged flowers that 100 million years later have been identified in their fossilized form as a new species of tree.

2017-08-15 20:33:02
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Does stronger initial response to cancer treatment predict longer overall survival?  

It seems like such a simple question: Do patients whose tumors shrink more in response to targeted treatment go on to have better outcomes than patients whose tumors shrink less? But the implications of a recent study demonstrating this relationship are anything but simple and could influence both the design of future clinical trials and the goals of oncologists treating cancer.

2017-08-15 19:30:53
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Detecting a concealed weapon or threat is not easy, even for experienced police officers  

Terrorist attacks and bombings at concerts, sporting events and airports underscore the need for accurate and reliable threat detection. However, the likelihood of a police officer identifying someone concealing a gun or bomb is only slightly better than chance, according to new research.

2017-08-15 19:04:41
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White matter connectome with cortical lesion map clarifies temporal auditory comprehension  

A new reports a novel mapping methodology adapted for stroke brains. Researchers combined connectome-lesion symptom mapping with traditional voxel-based cortical lesion symptom mapping to assess brain networks supporting auditory comprehension. Results confirm the middle, inferior and posterior temporal regions are the most important for speech comprehension and shed light on potential contributions of temporal lobe network connections in understanding spoken language.

2017-08-15 17:38:45
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'Acidic patch' regulates access to genetic information  

Researchers have uncovered new details about the way in which DNA, which is tightly packed into the cell's nucleus, is unwound so that it can be read and transcribed into proteins.

2017-08-15 17:25:40
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The key to drought-tolerant crops may be in the leaves  

Scientists are exploring how to generate plants that are more drought-resistant as the water supplies decline in major agricultural states.

2017-08-15 15:46:46
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Relativistic self-focusing gives mid-IR driven electrons a boost  

For the first time, scientists have observed the production of relativistic electrons driven by low-energy, ultrashort mid-infrared laser pulses.

2017-08-15 14:09:46
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The lining of our intestines uses business process for fast digestion  

Every time we swallow food, cells that line the intestines must step up their activity in a sudden and dramatic manner. According to a new study, they rise to the challenge in the most economic fashion.

2017-08-15 13:52:35
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'Accelerated approval' drugs: How well are they studied?  

Researchers have examined the pre-approval and post-approval clinical trials of drugs granted FDA Accelerated Approval between 2009 and 2013.

2017-08-15 13:23:03
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Changes to high-risk medical devices often supported by low-quality research  

Clinical trials that test changes in the design or use of high-risk medical devices are often poorly designed, and can rely on inadequate or potentially biased data, according to a new study.

2017-08-15 12:48:18
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Firmer, fitter frame linked to firmer, fitter brain  

To determine why more aerobically fit individuals have better memories, scientists used magnetic resonance elastography (MRE), which measures the elasticity of organs, and found that fit individuals had a firmer, more elastic hippocampus—a region of the brain associated with memory.

2017-08-15 12:33:09
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How a nutrient, glutamine, can control gene programs in cells  

Researchers show that an intracellular metabolite of glutamine, alpha-ketoglutarate, plays a role in regulating cellular differentiation programs by changing the DNA-binding patterns of the transcription factor CTCF and by altering genome interactions. As an added level of gene program control complexity, they have found that the genome's context near the binding sites -- such as epigenetic changes or altered genome topology -- affects whether the binding turns on or turns off gene programs.

2017-08-15 12:31:59
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Evidence does not support the use of gabapentinoids for chronic low back pain  

Existing evidence on the use of gabapentinoids in chronic low back pain (CLBP) is limited, and demonstrates significant risk of adverse effects with no benefits on pain relief, according to a recent meta-analysis.

2017-08-15 12:28:40
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Cosmic magnifying lens reveals inner jets of black holes  

Jet material ejected from a black hole is magnified in new observations from Caltech's Owens Valley Radio Observatory. This discovery provides the best view yet of blobs of hot gas that shoot out from supermassive black holes.

2017-08-15 12:18:53
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Now you can levitate liquids and insects at home  

Levitation techniques are no longer confined to the laboratory thanks to engineers who have developed an easier way for suspending matter in mid-air by developing a 3-D-printed acoustic levitator.

2017-08-15 12:09:09
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Birth defects, cancer linked  

Some children born with birth defects may be at increased risk for specific types of cancer, according to a new review.

2017-08-15 11:59:30
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Understanding antibiotic resistance  

Researchers have uncovered new insights into how bacteria respond to stress. When deprived of nutrients, strains of the bacterium Streptococcus pneumoniae mount a coordinated defense. When exposed to antibiotics, the bacterial response is highly disorganized, revealing the bacteria are far less familiar with antibiotics and do not recognize how to respond.

2017-08-15 11:56:08
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Binge-watching 'The Walking Dead?' You might feel like a zombie yourself  

Binge-watching may be a great way for young adults to catch up on multiple episodes of their favorite television series like 'The Walking Dead' or 'Game of Thrones,' but it comes at a price.

2017-08-15 11:50:49
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Eating habits affect skin's protection against sun  

Sunbathers may want to avoid midnight snacks before catching some rays, new research recommends. A study in mice shows that eating at abnormal times disrupts the biological clock of the skin, including the daytime potency of an enzyme that protects against the sun's harmful ultraviolet radiation.

2017-08-15 11:26:40
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Understanding alternative reasons for denying climate change could help bridge divide  

Scientists have explored alternative reasons for climate change denial, specifically economic, social or cultural influences on why individuals or entire communities remain skeptical of climate change.

2017-08-15 11:20:12
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Engineers charge ahead on zinc-air batteries  

Researchers have found a solution for one of the biggest stumbling blocks preventing zinc-air batteries from overtaking conventional lithium-ion batteries as the power source of choice in electronic devices.

2017-08-15 11:09:19
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Computer tech: 'Organismic learning' mimics some aspects of human thought  

A new computing technology called 'organismoids' mimics some aspects of human thought by learning how to forget unimportant memories while retaining more vital ones.

2017-08-15 11:03:42
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New method for the 3D printing of living tissues  

Scientists have developed a new method to 3D-print laboratory- grown cells to form living structures. The approach could revolutionize regenerative medicine, enabling the production of complex tissues and cartilage that would potentially support, repair or augment diseased and damaged areas of the body.

2017-08-15 11:02:38
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Competitiveness, aggression and hormone levels: How they are connected  

Feelings can run high in competitive situations and lead to heated arguments and disputes. But not everyone reacts in the same way -- men react differently to women and the reactions of individuals are dissimilar to those of groups of persons. This has been demonstrated scientifically by psychologists who examined the correlations between competitiveness, aggression and hormones.

2017-08-15 10:38:47
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Viruses up their game in arms race with immune system  

Myxoma virus -- introduced to control the rabbit population in Australia in 1950 -- has developed a deadly ability to suppress the immune response in host rabbits. This example of an evolutionary arms race highlights the potential for escalating virus virulence and host resistance to produce more dangerous viruses with implications for agriculture and human vaccination, where resistance to viruses is artificially increased through selective breeding, genetic engineering, and immunization, potent

2017-08-15 09:49:03
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Cosmic velocity web: Motions of thousands of galaxies mapped  

The cosmic web -- the distribution of matter on the largest scales in the universe -- has usually been defined through the distribution of galaxies. Now, a new study by a team of astronomers demonstrates a novel approach. Instead of using galaxy positions, they mapped the motions of thousands of galaxies.

2017-08-15 09:42:28
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What does it take to thrive in elite sports?  

Those at the top of their sporting game put their heart and soul into doing their best, but new research has shed light on why thriving at elite sports is far more complex than it appears. In the first study to examine thriving in elite sports performers, a sports scientist and colleagues have identified internal and external factors which contribute to a sportsman or woman being -- and feeling -- outstanding.

2017-08-15 09:41:23
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Skewing the aim of targeted cancer therapies  

The aim of targeted gene-based cancer therapies could often be skewed from the start. A widespread concept about how cells produce proteins proved incorrect 62 percent of the time in a new study in ovarian cancer cells on the relationship between RNA and protein levels.

2017-08-15 09:34:54
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Children who sleep an hour less at higher risk of type 2 diabetes, says study  

A study has found that children who slept on average one hour less a night had higher risk factors for type 2 diabetes, including higher levels of blood glucose and insulin resistance.

2017-08-15 09:05:07
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Tracking a solar eruption through the solar system  

Ten spacecraft, from ESA's Venus Express to NASA's Voyager-2, felt the effect of a solar eruption as it washed through the solar system while three other satellites watched, providing a unique perspective on this space weather event.

2017-08-15 08:53:42
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Archeologists uncover new economic history of ancient Rome  

Researchers are the first to successfully excavate the Roman villa of Durreueli at Realmonte, located off the southern coast of Sicily.

2017-08-15 08:10:59
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Unique imaging of a dinosaur's skull tells evolutionary tale  

Researchers using Los Alamos' unique neutron-imaging and high-energy X-ray capabilities have exposed the inner structures of the fossil skull of a 74-million-year-old tyrannosauroid dinosaur nicknamed the Bisti Beast in the highest-resolution scan of tyrannosaur skull ever done.

2017-08-15 08:08:36
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Atomically thin layers bring spintronics closer to applications  

Scientists have created a graphene-based device, in which electron spins can be injected and detected with unprecedented efficiency. The result is a hundredfold increase of the spin signal, big enough to be used in real life applications, such as new spin transistors and spin-based logic.

2017-08-15 08:03:33
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Same-sex couples do not influence their adoptive children's gender identity  

There is no major difference in the gender identity development of children raised by same-sex parents compared to those adopted by heterosexual couples. The toys that children prefer to play with in their preschool years are much more tell-tale about whether they will grow up to conform to typical gender norms.

2017-08-15 07:55:02
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'Fat but fit' are at increased risk of heart disease  

Carrying extra weight could raise your risk of heart attack by more than a quarter, even if you are otherwise healthy.

2017-08-15 07:33:14
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Signs of distracted driving: Pounding heart, sweaty nose  

Distracted driving -- texting or absent-mindedness -- claims thousands of lives a year. Researchers have produced an extensive dataset examining how drivers react to different types of distractions, part of an effort to devise strategies for making driving safer.

2017-08-15 07:05:31
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Intensive lifestyle intervention provides modest improvement in glycemic control, reduced need for medication  

A high amount and intensity of exercise along with a diet plan resulted in a modest reduction in blood glucose levels among adults with type 2 diabetes, but was accompanied by reductions in the use of glucose-lowering medications, according to a study.

2017-08-15 07:04:21
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Soft and spherical: Researchers study dynamics of drop impact  

Within the study of fluid dynamics, the effect of curved, convex or compliant surfaces on the dynamics of impacting drops is still relatively unknown, despite its extreme relevance to modern-day applications, such as 3-D ink-jet printing and the delivery of pesticides on leaves. Researchers have now detailed these effects by investigating the impact of water droplets on spherical soft surfaces.

2017-08-15 06:58:59
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High-quality online video with less rebuffering  

In experiments, Pensieve could stream video with 10 to 30 percent less rebuffering than other approaches, and at levels that users rated 10 to 25 percent higher on key 'quality of experience' metrics.

2017-08-15 06:35:11
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Adding silicon to soil to strengthen plant defenses  

Researchers have examined the addition of silicon to the soil in which plants are grown to help strengthen plants against potential predators.

2017-08-15 06:15:25
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Immune study points to new ways to treat lung disease  

Fresh insight into how the immune system keeps itself in check could lead to new ways of fighting chronic lung disease, report investigators.

2017-08-15 06:14:49
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Child's home learning environment predicts 5th grade academic skills  

Children whose parents provide them with learning materials like books and toys and engage them in learning activities and meaningful conversations in infancy and toddlerhood are likely to develop early cognitive skills that can cascade into later academic success.

2017-08-15 06:10:30
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Look ma, no hands: Researchers use vacuum for hands-free patterning of liquid metal  

Engineers have utilized vacuum to create a more efficient, hands-free method for filling complex microchannels with liquid metal.

2017-08-15 06:02:48
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How Gata4 helps mend a broken heart  

Gata4 alone is able to reduce post-heart attack fibrosis and improve cardiac function in a rat model of heart attack. In rat fibroblasts in the lab, the molecular mechanism involves reduced expression of Snail, the master gene of fibrosis.

2017-08-15 05:44:36
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The best place to treat type 1 diabetes might be just under your skin  

The space under our skin might be an optimal location to treat type 1 diabetes (T1D), a group of researchers has demonstrated.

2017-08-15 05:28:19
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Cassini says goodbye to a true Titan  

Mere weeks away from its dramatic, mission-ending plunge into Saturn, NASA's Cassini spacecraft has a hectic schedule, orbiting the planet every week in its Grand Finale. On a few orbits, Saturn's largest moon, Titan, has been near enough to tweak Cassini's orbit, causing the spacecraft to approach Saturn a bit closer or a bit farther away. A couple of those distant passes even pushed Cassini into the inner fringes of Saturn's rings.

2017-08-15 05:11:15
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Tidally locked exoplanets may be more common than previously thought  

Many exoplanets to be found by coming high-powered telescopes will probably be tidally locked -- with one side permanently facing their host star -- according to new research.

2017-08-15 05:01:05
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How decision-making habits influence the breast cancer treatments women consider  

A new study finds that more than half of women with early stage breast cancer considered an aggressive type of surgery to remove both breasts. The way women generally approach big decisions, combined with their values, impacts what breast cancer treatment they consider, the study also found.

2017-08-15 04:51:49
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Solar panels: Nanotechnology gives green energy a green color  

Solar panels have tremendous potential to provide affordable renewable energy, but many people see traditional black and blue panels as eyesores. Architects, homeowners and city planners may be more open to the technology if they could install colorful, efficient solar panels, and a new study brings us one step closer. Researchers have developed a method for imprinting existing solar panels with silicon nanopatterns that scatter green light back toward an observer.

2017-08-15 04:51:31
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Artificial blood vessels mimic rare accelerated aging disease  

Biomedical engineers have grown miniature human blood vessels using stem cells taken from patients with an extremely rare genetic disease called progeria that causes symptoms resembling accelerated aging in children. The blood vessels exhibit many of the symptoms and drug reactions associated with progeria and will help doctors and researchers screen potential therapeutics for the disease, and other rare diseases, more rapidly.

2017-08-15 04:48:18
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Deep-UV probing method detects electron transfer in photovoltaics  

Scientists have developed a new method to efficiently measure electron transfer in dye-sensitized transition-metal oxide photovoltaics.

2017-08-15 04:41:54
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Oxytocin and social norms reduce xenophobia  

How can xenophobia be reduced and altruism strengthened? Researchers have shown in a new study that the bonding hormone oxytocin together with social norms significantly increases the willingness to donate money to refugees in need, even in people who tend to have a skeptical attitude towards migrants.

2017-08-15 03:30:59
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Protein that inhibits the development of autoimmune diseases discovered  

The immune system protects humans from threats such as, for example, disease-causing bacteria, and cancer as well. Yet if the system malfunctions, it can attack the body it is supposed to defend and cause autoimmune diseases such as type one diabetes mellitus or multiple sclerosis. Scientists have now demonstrated that the membrane protein Caveolin-1 plays a key role in immune responses that trigger this type of disease.

2017-08-15 03:08:17
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How head-on collisions of DNA protein machines stop replication  

Head-on collisions between the protein machines that crawl along chromosomes can disrupt DNA replication and boost gene mutation rates. This may be one of the ways bacteria control their evolution by accelerating mutations in key genes when coping with new conditions. Some mutations may help bacteria survive hostile environments, resist antibiotics or fend off immune attacks.

2017-08-15 03:02:33
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New thruster design increases efficiency for future spaceflight  

Hall thrusters are used in earth-orbiting satellites and show promise to propel robotic spacecraft long distances, and the plasma ejected from the exhaust end of the thruster can deliver great speeds. Cylindrical Hall thrusters lend themselves to miniaturization and have a smaller surface-to-volume ratio that prevents erosion of the thruster channel.

2017-08-15 03:02:28
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Genome sequencing method can detect clinically relevant mutations using 5 CTCs  

Whole genome sequencing using long fragment read (LFR), a technology that can analyze the entire genomic content of small numbers of cells, detected potentially targetable mutations using only five circulating tumor cells (CTCs) in a patient with metastatic breast cancer.

2017-08-15 02:39:53
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Epigenetic drugs show promise as antivirals  

Some epigenetic pharmaceuticals have the potential to be used as broad spectrum antivirals, according to a new study. The study demonstrated that histone methyltransferases EZH2/1 inhibitors, which are being used in cancer clinical trials, have activity against a variety of viruses, including herpes simplex virus (HSV).

2017-08-15 02:24:50
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New genomic insights reveal a surprising two-way journey for apple on the Silk Road  

New research reveals surprising insights into the genetic exchange along the Silk Road that brought us the modern apple.

2017-08-15 01:59:51
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Climate change projected to significantly increase harmful algal blooms in US freshwaters  

Harmful algal blooms known to pose risks to human and environmental health in large freshwater reservoirs and lakes are projected to increase because of climate change.

2017-08-15 01:42:20
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Marijuana use amongst youth stable, but substance abuse admissions up  

While marijuana use amongst youth remains stable, youth admission to substance abuse treatment facilities has increased.

2017-08-15 01:37:01
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Mercury is altering gene expression  

Mercury causes severe neurological disorders in people who have consumed highly contaminated fish. Whereas we know about the element's extreme toxicity, what happens further down the food chain, all the way down to those microalgae that are the first level and the gateway for mercury? By employing molecular biology tools, a team of researchers measured the way mercury affects the gene expression of algae, even when its concentration in water is very low.

2017-08-15 01:36:53
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Cancer-fighting T cells are smarter, stronger than experts thought  

It takes a minuscule amount of force to make T cells behave in the lab as they behave in the body. That finding is a leap in cancer therapy research.

2017-08-15 01:28:07
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Mystery of 8,500-year-old copper-making event revealed through materials science  

Stone Age metallurgical 'slag' from Turkey -- once thought to be the earliest known example of copper smelting in western Eurasia -- now re-identified as incidentally fired green copper pigment.

2017-08-15 01:21:38
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Clinical appearance and unusual imaging findings of pediatric ketamine overdose  

Case report on a 10-month-old infant who inadvertently ingested ketamine. The paper offers detailed clinical information and unusual MRI findings.

2017-08-15 01:15:09
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Frogs that adapt to pesticides are more vulnerable to parasites  

Amphibians can evolve increased tolerance to pesticides, but the adaptation can make them more susceptible to parasites, according to a team of scientists.

2017-08-15 01:13:55
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Smarter robot vacuum cleaners for automated office cleaning  

Can you really use Outlook to make sure your office floor gets vacuumed? Absolutely! Engineers are developing an intelligent cleaning concept for smart offices. A robot vacuum cleaner automatically takes care of upcoming cleaning jobs that have been scheduled in Outlook.

2017-08-15 01:13:01
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Gaining influence over others does not increase autonomy  

Moving up the greasy pole in the office does not make people feel more personally free, new research has shown.

2017-08-15 01:10:37
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Supernova collides with nearby star, taking astrophysicists by surprise  

In the 2009 film 'Star Trek,' a supernova hurtles through space and obliterates a planet unfortunate enough to be in its path. Fiction, of course, but it turns out the notion is not so farfetched.

2017-08-14 21:36:03
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From cancer evolution to personalized therapies  

Being able to predict the resistance or sensitivity of a tumor cell to a drug is a key success-factor of cancer precision therapy. But such a prediction is made difficult by the fact that genetic alterations in tumors change dynamically over time and are often interdependent, following a pattern that is poorly understood.

2017-08-14 21:20:45
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Killing bacteria by hacking plastics with silver and electricity  

Researchers have developed an innovative way of hacking conducting plastics so as to prevent bacterial growth using silver nanoparticles and a small electrical current. The method could prove to be useful in preventing bacterial infections in hospitals.

2017-08-14 20:16:33
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ATLAS sees first direct evidence of light-by-light scattering at high energy  

Physicists from the ATLAS experiment have found the first direct evidence of high energy light-by-light scattering, a very rare process in which two photons - particles of light - interact and change direction. The result confirms one of the oldest predictions of quantum electrodynamics (QED).

2017-08-14 20:07:41
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Injectable tissue patch could help repair damaged organs  

A team of researchers is mending broken hearts with an expanding tissue bandage a little smaller than a postage stamp.

2017-08-14 19:06:48
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Blood biopsy test reads platelets to detect human lung cancer  

Researchers have designed a different approach to the liquid biopsy. Rather than looking for evidence of cancer DNA or other biomarkers in the blood, their test (called thromboSeq) could diagnose non-small cell lung cancer with close to 90 percent accuracy by detecting tumor RNA absorbed by circulating platelets, also known as thrombocytes. Non-small cell lung cancers make up the majority of lung cancer cases.

2017-08-14 18:52:52
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The secret to beating bone and joint health injuries? Get to the right medical team  

Orthopaedists can help prevent injuries; put people back together; provide patients with in-home exercises and ergonomically proper reconditioning programs; or pair patients with rehabilitation professionals for nonsurgical or post-surgical rehabilitation therapies. According to a new literature review therapeutic modalities -- or physical therapy -- can be a useful addition to exercise or to manipulative therapy to help improve bone-and-joint-based function affected by pain and/or injury.

2017-08-14 16:31:21
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Tiny fraction of oceans could meet world's fish demand  

Covering 70 percent of Earth's surface, the world's oceans are vast and deep. So vast, in fact, that nearly every coastal country has the potential to meet its own domestic seafood needs through aquaculture. In fact, each country could do so using a tiny fraction of its ocean territory.

2017-08-14 14:57:50
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First truly microfluidic 'lab on a chip' device 3-D printed  

Researchers have 3-D printed a viable microfluidic device small enough to be effective at a scale much less than 100 micrometers.

2017-08-14 14:44:40
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'Smiley' emojis in formal workplace e-mails could create frowns  

A smiley face emoji and similar emoticons included in work-related e-mails may not create a positive impression and could even undermine information sharing, according to a new study.

2017-08-14 14:40:26
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Two-faced 2-D material: flat sandwich of sulfur, molybdenum and selenium  

Mterials scientists replace all the atoms on top of a three-layer, two-dimensional crystal to make a transition-metal dichalcogenide with sulfur, molybdenum and selenium. The new material has unique electronic properties that may make it a suitable catalyst.

2017-08-14 14:13:05
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Cancer detection with sugar molecules  

Scientists have synthesized a complex sugar molecule which specifically binds to the tumor protein Galectin-1. This could help to recognize tumors at an early stage and to combat them in a targeted manner.

2017-08-14 13:27:28
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Probiotics help poplar trees clean up contaminated groundwater  

Researchers have conducted the first large-scale experiment on a Superfund site using poplar trees fortified with a probiotic -- or natural microbe -- to clean up groundwater contaminated with trichloroethylene, or TCE.

2017-08-14 13:13:12
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New way to activate stem cells to make hair grow  

Researchers have discovered a new way to activate the stem cells in the hair follicle to make hair grow. The research may lead to new drugs that could promote hair growth for people with baldness or alopecia, which is hair loss associated with such factors as hormonal imbalance, stress, aging or chemotherapy treatment.

2017-08-14 13:11:06
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Long-term diabetes complication: Liver inflammation raises cholesterol levels  

Inflammatory processes in the liver lead to elevated cholesterol levels in people with diabetes, thus promoting subsequent vascular diseases. The new research presents a previously unknown mechanism.

2017-08-14 12:46:08
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Smartphone tracking shows fear affects where youth spend time  

Youth spend less time in their neighborhoods if area residents have a high fear of crime, according to a new study that used smartphones to track kids' whereabouts. Researchers found that adolescents aged 11 to 17 spent over an hour less each day on average in their neighborhoods if residents there were very fearful, compared to kids from areas perceived as being safer.

2017-08-14 12:26:33
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Analysis finds defeat of Hannibal 'written in the coins of the Roman Empire'  

Analysis of ancient Roman coins has shown that the defeat of the Carthaginian general Hannibal led to a flood of wealth across the Roman Empire from the silver mines of Spain. This finding gives us a tangible record of the transition of Rome from a regional power to an Empire.

2017-08-14 12:09:04
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Secret to happiness may include more unpleasant emotions  

People may be happier when they feel the emotions they desire, even if those emotions are unpleasant, such as anger or hatred, according to new research.

2017-08-14 11:59:30
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High use of electronic cigarettes seen in 8th-9th graders in Oregon  

The study showed that adolescents are using e-cigarettes at high rates, and many are using e-cigarettes before trying regular cigarettes or chewing tobacco. In addition, e-cigarette users were more likely to have used and be using other substances, with marijuana being the most common.

2017-08-14 11:47:25
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Meadow of dancing brittle stars shows evolution at work  

Newly-described fossil shows how brittle stars evolved in response to pressure from predators, and how an 'evolutionary hangover' managed to escape them.

2017-08-14 11:33:21
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Critical point in breaking the glass problem  

Famously described as 'the deepest problem in solid state physics' by Nobel Laureate, Philip Andersen, the glass transition, by which a liquid transforms into a solid without freezing, is shedding its mystique.

2017-08-14 11:23:33
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New plate adds plot twist to ancient tectonic tale  

Misfit plates in the Pacific led scientists to the discovery of a microplate between the Galapagos Islands and the South American coast.

2017-08-14 11:09:14
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Why expensive wine appears to taste better: It's the price tag  

Price labels influence our liking of wine: The same wine tastes better to participants when it is labeled with a higher price tag. Scientists have discovered that the decision-making and motivation center in the brain plays a pivotal role in such price biases to occur. The medial pre-frontal cortex and the ventral striatum are particularly involved in this.

2017-08-14 10:30:22
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Doctors trained at lowest-ranked medical schools prescribe more opioids  

Physicians trained at the United States' lowest-ranked medical schools write more opioid prescriptions than physicians trained at the highest-ranked schools, according to a study. The study suggests that better training for physicians, and for general practitioners in particular, could help curb the nation's opioid epidemic.

2017-08-14 10:02:50
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Cardiac stem cells from young hearts could rejuvenate old hearts  

Cardiac stem cell infusions could someday help reverse the aging process in the human heart, making older ones behave younger, according to a new study.

2017-08-14 09:46:49
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8 

Brain injury in kids might lead to alcohol abuse  

Researchers have surveyed previous studies to investigate the relationship between traumatic brain injuries and alcohol abuse. They found evidence that traumatic brain injuries in children and adolescents could be a risk-factor for alcohol abuse in later life, and advise that brain injury survivors should be given special attention to address potential substance abuse issues.

2017-08-14 09:16:24
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9 

On the darknet, drug buyers aren't looking for bargains  

When drug users go online for the first time to buy opioids, they aren't looking for the widest selection or the best prices for their illicit purchases, a new study suggests. Researchers found that first-time drug buyers who visited one marketplace on the 'darknet' cared only about finding trustworthy sellers -- those who would deliver what they promised and keep the buyers' identities secret.

2017-08-14 08:19:50
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9 

Varroa mites -- bees' archenemies -- have genetic holes in their armor  

Seemingly indestructible Varroa mites have decimated honeybee populations and are a primary cause of colony collapse disorder, or CCD. Scientists have found genetic holes in the pests' armor that could potentially reduce or eliminate the marauding invaders. The team's results have identified four genes critical for survival and two that directly affect reproduction.

2017-08-14 08:19:48
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9 

Fundamentals of water repellency revealed  

The frictional mechanism that resists the motion of drops on inclined surfaces and when affected by wind drag has now been revealed by a team of researchers. They have also developed a theory by which sliding of drops off surfaces of different materials can be predicted. This makes it possible to systematically develop hydrophobic surfaces by modifying their base material and roughness.

2017-08-14 08:12:11
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6 

Exotic quantum states made from light  

Physicists have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers.

2017-08-14 08:09:39
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8 

Granulins are brain treasure, not trash  

Using new tools, researchers can see granulins inside cells within lysosomes, and propose that granulins have important jobs in the lysosome that are necessary to maintain brain health, suppress neuroinflammation, and prevent neurodegeneration.

2017-08-14 08:07:34
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3 




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