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Restored streams take 25 years or longer to recover

Tue, 30/06/2015 - 2:06pm
The number of plant species growing just next to restored streams can take up to 25 years to increase above those channelized during the timber floating era, research concludes.
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New method of quantum entanglement packs vastly more data in a photon

Tue, 30/06/2015 - 2:06pm
Electrical engineers have demonstrated a new way to harness light particles, or photons, that are connected to each other and act in unison no matter how far apart they are -- a phenomenon known as quantum entanglement.
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Nation's weather radar network used to track bird migration at night

Tue, 30/06/2015 - 2:06pm
Using the nation's weather radar network, two doctoral students have developed a technique for forecasting something other than the weather: the orientation behavior of birds as they migrate through the atmosphere at night. The students have discovered a way to use the latest dual-polarization radar upgrade to measure broad-scale flight orientation of nocturnal migrant birds -- a promising development for biologists and bird enthusiasts.
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Exit dinosaurs, enter fishes

Tue, 30/06/2015 - 2:06pm
A pair of paleobiologists have determined that the world's most numerous and diverse vertebrates -- ray-finned fishes -- began their ecological dominance of the oceans 66 million years ago, aided by the mass extinction event that killed off dinosaurs.
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Longer acquaintance levels the romantic playing field

Tue, 30/06/2015 - 2:06pm
Partners who become romantically involved soon after meeting tend to be more similar in physical attractiveness than partners who get together after knowing each other for a while, according to new findings.
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Patients with recurrent depression have smaller hippocampi

Tue, 30/06/2015 - 2:05pm
The brains of people with recurrent depression have a significantly smaller hippocampus -- the part of the brain most associated with forming new memories -- than healthy individuals, a new global study of nearly 9,000 people reveals.
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Smell fingerprints? Each person may have a unique sense of smell

Tue, 30/06/2015 - 2:05pm
Scientists have developed an 'olfactory fingerprint' test that may do more than just identify individuals.
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Seeing a supernova in a new light

Tue, 30/06/2015 - 2:05pm
Type Ia supernovae are the 'standard candles' astrophysicists use to chart distance in the Universe. But are these dazzling exploding stars truly all the same? To answer this, scientists must first understand what causes stars to explode and become supernovae.
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Colon cancer: Taking a step back to move forward

Tue, 30/06/2015 - 2:05pm
Recent studies are revealing a complex picture of cancer progression in which certain genes that drive tumor growth in the earlier stages get suppressed in later stages -- taking a step back to move forward.
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New study re-writes the rules of carbon analysis

Tue, 30/06/2015 - 2:05pm
Analyses of carbon emissions may be misleading as they failed to include the impacts of policies such as trading schemes, emission caps or quotas, experts say in a new article.
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Virus-carrying mosquitoes are more widespread than ever, and spreading

Tue, 30/06/2015 - 2:05pm
Scientists behind the first global distribution maps of two species of dengue and chikungunya-carrying mosquitoes warn they are spreading to new areas where they could cause disease.
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Minor heart feature may mean trouble at high altitude

Tue, 30/06/2015 - 2:04pm
A common heart feature long thought to have negligible effects on human health and performance may be problematic at high altitude. That's a key finding from a study that looked at the effects of a condition known as patent foramen ovale in a high-altitude Bolivian setting.
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Efficacy of topical benzoyl peroxide on the reduction of propionibacterium acnes during shoulder surgery

Tue, 30/06/2015 - 12:05pm
The effect that topical benzoyl peroxide (BPO), with chlorhexidine skin preparation, has on the presence of Propionibacterium acnes cultured at the time of shoulder surgery has been the focus of recent study. The authors hypothesized that adding topical BPO, the active ingredient in Clearasil, to the pre-operative skin preparation would reduce the number of positive P. acnes cultures identified during surgery. P. acnes infection is a significant problem after shoulder surgery. Residual P. acnes is found on the skin up to 29% of the time immediately after surgical skin preparation and in 70% of dermal biopsy specimens. These residual bacteria may be a source for infection. Identifying more ideal skin preparation may help reduce the risk of infection.
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The riddle of Celiac disease solved?

Tue, 30/06/2015 - 12:04pm
The cause of celiac disease has been found, researchers claim. Experts estimate that 1% of people have celiac disease. This is a partly hereditary disease that may place considerable strain on patients and their families. The immune system of patients with celiac disease reacts to gluten proteins from cereal grains, causing inflammation of the mucous membrane of the small intestine. This reaction to gluten causes the immune system of celiac patients to attack their own body.
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Organic food to have longer 'life' with superchilling technique

Tue, 30/06/2015 - 12:04pm
A new method keeps salmon fresh for a whole month, without the use of chemicals. The technology is called superchilling, and it lies somewhere between freezing the fish and cooling it down. Now it is about to provide useful help to organic food producers.
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Medical tourism: Implications for patients, health systems

Tue, 30/06/2015 - 12:04pm
Patients who travel abroad for medical treatment risk returning with complications or infections that require costly treatment, and is one of the issues highlighted in a new handbook exploring medical tourism.
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Bioenergy in the Upper Rhine area: Potential for improvement

Tue, 30/06/2015 - 12:04pm
Scientists have analyzed the potentials of sustainable use of biomass on the Upper Rhine. The conclusion drawn by the researchers: Further increase in biomass production is limited, as this would require more area. However, a big potential still lies in increasing the efficiency. Their recommendation for the Upper Rhine region: Development of more efficient technologies, enhanced multiple use of biomass, and transnational exchange of knowledge.
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New luminescence method offers opportunities for geothermal energy

Tue, 30/06/2015 - 12:04pm
Rocks store information about the temperatures that they have experienced. Now, for the first time, researchers have developed a method that reveals low-temperature information (from 35 °C and higher) on a relatively short timescale of thousands of years. The new method might find application in locating geothermal reservoirs and in maintaining underground tunnels.
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340 undiscovered meteorite impact sites on Earth, geologists calculate

Tue, 30/06/2015 - 12:02pm
Researchers have calculated the number of undiscovered meteorite impact sites on Earth's surface. Geologists say a total of 188 have been confirmed so far, and 340 are still awaiting discovery. Meteorite impacts have shaped the development of the Earth and life repeatedly in the past. The extinction of the dinosaurs, for instance, is thought to have been brought on by a mega-collision at the end of the Cretaceous period. But how many traces of large and small impacts have survived the test of time?
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New genetic form of obesity, diabetes discovered

Tue, 30/06/2015 - 12:01pm
Scientists have discovered a new inherited form of obesity and type 2 diabetes in humans. Researchers discovered the new defect by sequencing the DNA of an extremely obese young woman and members of her family. In addition to an increased appetite leading to severe weight problems from childhood, she had type 2 diabetes, learning difficulties, and reproductive problems.
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