Tuesday, June 4, 2013

FeedaMail: ScienceDaily: Most Popular News

feedamail.com ScienceDaily: Most Popular News

Women reject sexually promiscuous peers when making female friends

College-aged women judge promiscuous female peers more negatively than more chaste women and view them as unsuitable for friendship, according to psychologists.

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More attractive real estate agents mean higher prices and profits

A recent study of physical attractiveness and how it impacts real estate brokers' pay and productivity shows that the more attractive the real estate agent, the higher the listing price of the home for sale.

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Vegetarian diets associated with lower risk of death

Vegetarian diets are associated with reduced death rates in a study of more than 70,000 Seventh-day Adventists with more favorable results for men than women, according to a new report.

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A grassy trend in human ancestors' diets

Most apes eat leaves and fruits from trees and shrubs. New studies show that human ancestors expanded their menu 3.5 million years ago, adding tropical grasses and sedges to an ape-like diet and setting the stage for our modern diet of grains, grasses, and meat and dairy from grazing animals.

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Earth's Milky Way neighborhood gets more respect

Our Solar System's Milky Way neighborhood just went upscale. We reside between two major spiral arms of our home galaxy, in a structure called the Local Arm. New research indicates that the Local Arm, previously thought to be only a small spur, instead is much more like the adjacent major arms, and is likely a significant branch of one of them.

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Molecular switch for cheaper biofuel

Lignocellulosic waste such as sawdust or straw can be used to produce biofuel -- but only if the long cellulose and xylan chains can be successfully broken down into smaller sugar molecules. To do this, fungi are used which, by means of a specific chemical signal, can be made to produce the necessary enzymes. Scientist have now genetically modified fungi in order to make biofuel production significantly cheaper.

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New kind of antibiotic may be more effective at fighting tuberculosis, anthrax, and other diseases

Diseases such as tuberculosis, anthrax, and shigellosis -- a severe food-borne illness -- eventually could be treated with an entirely new and more-effective kind of antibiotic, say scientists who found 46 previously untested molecules that target and disrupt an important step in the process of protein synthesis in bacteria. These molecules render bacteria incapable of replicating.

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Potential new way to suppress tumor growth discovered

Researchers have identified a new mechanism that appears to suppress tumor growth, opening the possibility of developing a new class of anti-cancer drugs.

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Surgery for obsessive compulsive disorder sufferers is safe and effective, study suggests

Around half of people with an extreme form of obsessive compulsive disorder responded well to a type of psychosurgery that proved to be safe and effective, according to new research.

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Musculoskeletal conditions, injuries may be associated with statin use

Using cholesterol-lowering statins may be associated with musculoskeletal conditions, arthropathies (joint diseases) and injuries, according to a new report.

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A new species of yellow slug moth from China

A new species of the slug moth genus Monema has been described from China. The name refers to the peculiar caterpillars resembling slugs in many of their characteristics. The recent study of the representatives of the Monema genus in China records four species in total and a subspecies present in the country.

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Cheerful women are not associated with leadership qualities, but proud ones are, study finds

Women are perceived as being more willing to lead if they show that they are proud of their personal performance. If, however, they give a cheerful impression, they are judged to have less willingness to leadership roles than men who display similar emotions. This is one of the initial findings of a long-term project in which economic researchers are investigating the selection and assessment of leaders.

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Not really 'bath salts': Update on 'designer stimulants'

The last few years have seen the emergence of a new drug problem in so-called "bath salts"—- actually "designer stimulants," packaged and sold in ways that skirt drug laws.

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The intensity of land use doubled in the 20th century

The growth of green plants – which can be measured in terms of "net primary production", or NPP for short – provides the energetic foundation for all life on Earth. The share of NPP appropriated by humans (HANPP) through agriculture and forestry, bioenergy production, and vegetation fires doubled over the course of the past century. Researchers have shown that while land is used more efficiently, simultaneously, the intensity of land use has increased continuously. Researchers warn that an increased expansion of bioenergy use would drastically raise HANPP to over 40%.

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Stopping the worm from turning

Almost one in six people worldwide are infected by parasitic worms, while parasitic infections of livestock cause economic losses of billions of Euro per year. Resistance to the few drugs available to treat infections is increasing and there is an urgent need to identify additional strategies to control parasitic diseases. A new study describes a rational approach to identifying proteins that might be involved in the larval development of a particular worm that infects pigs.

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New way to improve stem cells' cartilage formation

Bioengineers are interested in finding innovative ways to grow new cartilage from a patient's own stem cells, and, thanks to a new study, such a treatment is a step closer to reality.

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Catalyst could jump-start e-cars, green energy

Scientists have designed a new type of nanostructured-carbon-based catalyst that could pave the way for reliable, economical next-generation batteries and alkaline fuel cells, providing for practical use of wind- and solar-powered electricity, as well as enhanced hybrid electric vehicles.

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Behold the 9-day fresh strawberry: New approach to slowing rot doubles berry shelf life

Scientists have developed a way to double the shelf life of strawberries. Shining UV light onto the berries under conditions that mimic the inside of a home refrigerator delayed rotting to up to nine days.

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