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Hidden river once flowed beneath Antarctic ice

Mon, 21/08/2017 - 10:34pm
Using the most precise seafloor maps ever created of Antarctica's Ross Sea, researchers have discovered a long-dead river system that once flowed beneath Antarctica's ice and influenced how ice streams melted after Earth's last ice age.
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How plants turn off genes they don't need

Mon, 21/08/2017 - 10:33pm
New research has identified small sequences in plant DNA that act as signposts for shutting off gene activity, directing the placement of proteins that silence gene expression.
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Postnatal identification of Zika virus peptides from saliva

Mon, 21/08/2017 - 7:46pm
For the first time, researchers are using proteomics to examine proteins and peptides in saliva in order to accurately detect exposure to Zika virus. With 70 countries and territories reporting evidence of mosquito-borne Zika virus transmission, there is an increased need for a rapid and effective test for the virus. This study offers a new, quicker and more cost-effective way to test for the virus.
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Alternative mode of bacterial quorum sensing

Mon, 21/08/2017 - 7:46pm
Researchers have revealed the existence of a new quorum-sensing molecule that increases the virulence of the pathogenic bacterium Pseudomonas aeruginosa.
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Materials scientists probe a protein's role in speeding Ebola's spread

Mon, 21/08/2017 - 7:46pm
Scientists have pinpointed how a tiny protein seems to make the deadly Ebola virus particularly contagious.
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New targets for drugs to treat fatty liver disease and liver cancer

Mon, 21/08/2017 - 7:11pm
There may no silver bullet for treating liver cancer or fatty liver disease, but knowing the right targets will help science develop the most effective treatments. Researchers have just identified a number of drug targets that can be used in the development of new efficient treatment strategies with minimum side effects.
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Analysis of a 'rusty' lunar rock suggests the moon's interior is dry

Mon, 21/08/2017 - 7:11pm
The moon is likely very dry in its interior according to a new study analyzing fragments of the 'Rusty Rock,' a rock collected from the moon's surface during the Apollo 16 mission in 1972.
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Dino-killing asteroid could have thrust Earth into two years of darkness

Mon, 21/08/2017 - 7:10pm
Tremendous amounts of soot, lofted into the air from global wildfires following a massive asteroid strike 66 million years ago, would have plunged Earth into darkness for nearly two years, new research finds. This would have shut down photosynthesis, drastically cooled the planet, and contributed to the mass extinction that marked the end of the age of dinosaurs.
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Chemicals from gut bacteria maintain vitality in aging animals

Mon, 21/08/2017 - 7:10pm
A class of chemicals made by intestinal bacteria, known as indoles, help worms, flies and mice maintain mobility and resilience for more of their lifespans, scientists have discovered.
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Cholesterol-lowering drugs may fight infectious disease

Mon, 21/08/2017 - 7:10pm
Scientists found a gene variant that affects cholesterol levels also could increase the risk of contracting typhoid fever. A common cholesterol-lowering drug could protect animal models against Salmonella Typhi, the culprit behind the potentially deadly infection. The findings give insight into the mechanisms that govern human susceptibility to infectious disease and point to possible avenues to protect against pathogens -- like Salmonella or Ebola -- whose entry into host cells is regulated by cholesterol.
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Biofuels from bacteria

Mon, 21/08/2017 - 5:50pm
Scientists are working toward a better understand whether cyanobacteria can be grown for biofuels on a large scale.
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Afternoon slump in reward response

Mon, 21/08/2017 - 5:42pm
Activation of a reward-processing brain region peaks in the morning and evening and dips at 2 p.m., finds a study of healthy young men. This finding may parallel the drop in alertness people tend to feel in mid-afternoon.
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People favor highly reviewed products, even when they shouldn't

Mon, 21/08/2017 - 4:52pm
When we're trying to decide which cell phone case to buy or which hotel room to book, we often rely on the ratings and reviews of others to help us choose. But new research suggests that we tend to use this information in ways that can actually work to our disadvantage.
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Antarctic salt-loving microbes provide insights into evolution of viruses

Mon, 21/08/2017 - 4:28pm
Scientists studying microbes from some of the saltiest lakes in Antarctica have discovered a new way the microbes can share DNA that could help them grow and survive. The research, based on 18 months of water sampling in remote Antarctic locations, could throw light on the evolutionary history of viruses. The team discovered some of the microbes contained small molecules of DNA called plasmids.
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'Exquisite selectivity' of neuronal wiring in the cerebral cortex revealed by research

Mon, 21/08/2017 - 4:28pm
Advanced technologies has been used to illuminate the connectivity pattern of chandelier cells, a distinctive kind of inhibitory cell type in the mammalian brain. Scientists reveal for the first time how this candelabra-shaped cell interacts in a highly selective way with hundreds of excitatory cells in its neighborhood, receiving information from some, imparting information to others.
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New tool identifies diabetes patients at risk for low blood sugar emergencies

Mon, 21/08/2017 - 4:28pm
A team of researchers has developed and validated a practical tool for identifying diabetes patients who are at the highest risk for being admitted to an emergency department or hospital due to severe hypoglycemia, or very low blood sugar.
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Are there ethnic differences in cognitive outcomes based on BP targets?

Mon, 21/08/2017 - 4:27pm
A new article investigates how various blood pressure targets for older patients treated for hypertension were associated with cognitive function and if ethnic differences existed in long-term cognitive outcomes.
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What is the global prevalence of fetal alcohol spectrum disorder?

Mon, 21/08/2017 - 4:27pm
New reserach estimates the global prevalence of fetal alcohol spectrum disorder (FASD) among children and youth.
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What hours are worked by women, men in dual-physician couples with kids?

Mon, 21/08/2017 - 4:27pm
In dual-physician couples, women with children worked fewer hours than women without children but similar differences in hours worked were not seen among men, according to a new research letter.
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Mechanism that impairs production of bovine embryos is revealed

Mon, 21/08/2017 - 4:27pm
A longstanding obstacle to the market for bovine embryos is about to be removed. Researchers have described a hitherto unknown mechanism of lipid accumulation in oocytes that limits the success of in vitro production of bovine embryos.
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