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Don't relax drug approval process, experts warn

Wed, 08/03/2017 - 6:12pm
Experts are warning that moves to deregulate America's drug approval process could see a flood of unproven and even harmful new drugs enter the market that could threaten human health.
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Paper pumps power portable microfluidics, biomedical devices

Wed, 08/03/2017 - 6:12pm
Biomedical engineering researchers have developed inexpensive paper pumps that use capillary action to power portable microfluidic devices, opening the door to a range of biomedical tools.
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Molecule shown to repair damaged axons

Wed, 08/03/2017 - 6:12pm
A foray into plant biology led one researcher to discover that a natural molecule can repair axons, the thread-like projections that carry electrical signals between cells. Axonal damage is the major culprit underlying disability in conditions such as spinal cord injury and stroke.
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Researchers find neurological link between religious experiences and epilepsy

Wed, 08/03/2017 - 6:11pm
A relationship between epilepsy and heightened religious experiences has been recognized since at least the 19th century. In a recent study, researchers found a neurological relationship exists between religiosity -- a disposition for spiritual experience and religious activity -- and epilepsy. This finding sheds light on the connection between religion and neuropsychological processes within the human brain.
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Silk Road evolved as 'grass-routes' movement

Wed, 08/03/2017 - 6:11pm
Nearly 5,000 years ago, long before the vast east-west trade routes of the Great Silk Road were traversed by Marco Polo, the foundations for these trans-Asian interaction networks were being carved by nomads moving herds to lush mountain pastures, suggests new research.
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Novel compound that engages 'second arm' of immune system reduces breast tumors, metastases

Wed, 08/03/2017 - 6:11pm
A compound able to reverse the allegiance of innate immune system cells - turning them from tumor enablers into tumor opponents - caused breast tumors in mice to shrink and withdraw from distant metastases, scientists report.
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New enzyme-like tool lets chemists modify hard-to-reach spots on drug molecules

Wed, 08/03/2017 - 6:11pm
Chemists have devised a versatile molecule-building tool for creating new drugs and other chemical products. The invention brings chemistry a step closer to an ambitious goal: being able to use techniques of laboratory organic synthesis to make the highly selective transformations of molecules that enzymes catalyze in living cells -- but without enzymes' limitations.
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Aboriginal hair shows 50,000 year connection to Australia

Wed, 08/03/2017 - 6:11pm
DNA in hair samples collected from Aboriginal people across Australia in the early to mid-1900s has revealed that populations have been continuously present in the same regions for up to 50,000 years -- soon after the peopling of Australia.
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Bone-derived hormone suppresses appetite in mice

Wed, 08/03/2017 - 6:11pm
Lipocalin 2, a hormone secreted by bone cells, suppresses appetite in mice, researchers have discovered. The study findings, which reveal a new mechanism for regulating food intake and blood sugar, could lead to the development of new treatments for obesity, type 2 diabetes, and other metabolic disorders.
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The proteins that domesticated our genomes

Wed, 08/03/2017 - 6:11pm
Scientists have carried out a genomic and evolutionary study of a large and enigmatic family of human proteins, to demonstrate that it is responsible for harnessing the millions of transposable elements in the human genome. The work reveals the largely species-specific gene-regulatory networks that impact all of human biology, in both health and disease.
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New survey finds 'Peter Pan' radio galaxies that may never grow up

Wed, 08/03/2017 - 5:18pm
A team of astronomers has doubled the number of known young, compact radio galaxies -- galaxies powered by newly energized black holes. The improved tally will help astronomers understand the relationship between the size of these radio sources and their age, as well as the nature of the galaxy itself. In particular, it will help astronomers understand why there are so many more young radio galaxies than old.
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MRI-powered mini-robots could offer targeted treatment

Wed, 08/03/2017 - 4:48pm
Invasive surgical techniques allow physicians to effectively treat disease but can lead to sometimes serious complications and dramatically slow healing for the patient. Scientists instead want to deploy dozens, or even thousands of tiny robots to travel the body's venous system as they deliver drugs or a self-assembled interventional tool.
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Controversial 'liberation therapy' fails to treat multiple sclerosis

Wed, 08/03/2017 - 4:48pm
Opening up narrowed veins from the brain and spinal cord is not effective in treating multiple sclerosis (MS), according to a study. The conclusions about the so-called 'liberation therapy,' which thousands of people with MS have undergone since 2009, represent the most definitive debunking of the claim that patients could achieve dramatic improvements from a one-time medical procedure.
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Mechanism underlying size-sorting of rubble on asteroid Itokawa revealed

Wed, 08/03/2017 - 4:48pm
Researchers investigate why pebbles and boulders on asteroid Itokawa's surface occupy separate regions.
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Fish, selective hunting strategies and a delayed-return lifestyle among ancient foragers

Wed, 08/03/2017 - 4:48pm
A unique trove of bone material from the 9,200 year old coastal settlement Norje Sunnansund in Blekinge, Sweden, has revealed that surprisingly sophisticated hunting strategies were used at the time. One key find was that the early Mesolithic humans practiced so-called selective hunting -- seemingly in order to maximize gain and preserve the local population of certain species.
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The protective layer of prehistoric land plants

Wed, 08/03/2017 - 4:48pm
Biologists have discovered a mechanism in mosses that was crucial for the evolution of ecosystems on land. The investigators discovered this mechanism that facilitated the evolutionary transition of plants from fresh water to land in the moss Physcomitrella patens.
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Research lab expands palette for color-changing glass

Wed, 08/03/2017 - 4:48pm
New nanophotonics research could expand the color palette for companies in the fast-growing market for glass windows that change color at the flick of an electric switch. A team of researchers has used an inexpensive hydrocarbon molecule to create low-voltage, multicolor, electrochromic glass.
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Moving toward faster, more accurate detection of food- and water-borne bacteria

Wed, 08/03/2017 - 4:47pm
Food poisoning is a scourge. Yet preventing it is far from foolproof. But in a new study, scientists report that they are closing in on a way to use a combination of color-changing paper and electrochemical analysis -- on plastic transparency sheets or simple paper -- to quickly, cheaply and more accurately detect bacterial contamination of fruits and vegetables in the field before they reach grocery stores, restaurants and household pantries.
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New technology platform propels the use of 'organs-on-chips'

Wed, 08/03/2017 - 4:47pm
A novel technology platform has been developed that enables the continuous and automated monitoring of so-called 'organs-on-chips' -- tiny devices that incorporate living cells to mimic the biology of bona fide human organs.
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Atomic resolution of muscle contraction

Wed, 08/03/2017 - 4:47pm
Atomic images of muscle molecules in action have now been captured by researchers, giving possibility of new nanomachines.
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