Wednesday, May 22, 2013

Polymer Breakthrough Inspired by Trees and Ancient Celtic Knots

A new slow-motion method of controlling the synthesis of polymers, which takes inspiration from both trees and Celtic knots, opens up new possibilities in areas including medical devices, drug delivery, elastics and ...  > full story
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Bee and Wild Flower Biodiversity Loss Slows

Declines in the biodiversity of pollinating insects and wild plants have slowed in recent years, according to a new study. Researchers found evidence of dramatic reductions in the diversity of species in Britain, Belgium and the Netherlands ...  > full story
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Drought Makes Borneo's Trees Flower at the Same Time

Tropical plants flower at supra-annual irregular intervals. In addition, mass flowering is typical for the tropical forests in Borneo and elsewhere, where hundreds of different plant timber species from the Dipterocarpaceae family flower synchronously. This ...  > full story
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Phthalates -- Chemicals Widely Found in Plastics and Processed Food -- Linked to Elevated Blood Pressure in Children and Teens

Plastic additives known as phthalates are odorless, colorless and just about everywhere: They turn up in flooring, plastic cups, beach balls, plastic wrap, intravenous tubing and the bodies ...  > full story
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Lost in Translocation? How Bird Song Could Help Save Species

Translocation -- or moving animals to safer places -- is a vital tool for saving species from extinction. Many factors influence the success of these new populations, including habitat quality, predators, capture and ...  > full story
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Study Reveals How Fishing Gear Can Cause Slow Death of Whales

Using a "patient monitoring" device attached to a whale entangled in fishing gear, scientists showed for the first time how fishing lines changed a whale's diving and swimming behavior. The monitoring revealed ...  > full story
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Bird's Playlist Could Signal Mental Strengths and Weaknesses

Having the biggest playlist doesn't make a male songbird the brainiest of the bunch, a new study shows. In a series of problem-solving tests with the birds, researchers found that the male song sparrows that sang the ...  > full story
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Better Understanding of Water's Freezing Behavior at Nanoscale

The results of a new study provide direct computational evidence that nucleation of ice in small droplets is strongly size-dependent, an important conclusion in understanding water's behavior at the nanoscale. ...  > full story
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Vitamin C Can Kill Drug-Resistant TB, Researchers Find

In a striking, unexpected discovery, researchers have determined that vitamin C kills drug-resistant tuberculosis (TB) bacteria in laboratory culture. The finding suggests that vitamin C added to existing TB drugs could ...  > full story
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Drawing Closer to Alzheimer’s Magic Bullet? Drugs Found to Both Prevent and Treat Alzheimer's Disease in Mice

Imagine a pharmaceutical prevention, treatment or even cure for Alzheimer's disease. It is almost impossible to overstate how monumental a development that would be and how it would answer ...  > full story
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Aggressive Behavior Linked Specifically to Secondhand Smoke Exposure in Childhood

Children who are exposed to secondhand smoke in early childhood are more likely to grow up to physically aggressive and antisocial, regardless of whether they were exposed during pregnancy or their parents have a history of ...  > full story
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Low Population Immunity to New Bird Flu Virus H7N9 in Humans

The level of immunity to the recently circulating H7N9 influenza virus in an urban and rural population in Vietnam is very low, according to the first population level study to examine human immunity to the virus, which ...  > full story
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Health & Biomedical Sciences


Health & Medicine

New Source of Kidneys for Transplant Suggested

Nearly 20 percent of kidneys that are recovered from deceased donors in the U.S. are refused for transplant due to factors ranging from scarring in small blood vessels of the kidney’s filtering units to the organ going too long without blood ...  > full story

Living Well

How to Best Manage Workaholics: New Study Offers Insight

Workaholics tend to live in extremes, with great job satisfaction and creativity on the one hand and high levels of frustration and exhaustion on the other hand. Now, a new study offers managers practical ways to help these employees stay healthy ...  > full story

Biological & Earth Sciences


Plants & Animals

Resistance to Last-Line Antibiotic Makes Bacteria Resistant to Immune System

Bacteria resistant to the antibiotic colistin are also commonly resistant to antimicrobial substances made by the human body, according to a new study. Cross-resistance to colistin and host antimicrobials LL-37 and lysozyme, which help defend the ...  > full story

Physical & Applied Sciences


Space & Time

NASA’s BARREL Mission Launches 20 Balloons

In Antarctica in January, 2013 -- the summer at the South Pole -- scientists released 20 balloons, each eight stories tall, into the air to help answer an enduring space weather question: when the giant radiation belts surrounding Earth lose ...  > full story

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Next Generation Of Heart Stents

Interventional cardiologists used magnetic particles to accelerate the process of healing after the placement of a stent. To do this, they extract. ...  > full story

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