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Physical activity yields feelings of excitement, enthusiasm

People who are more physically active report greater levels of excitement and enthusiasm than people who are less physically active, according to Penn State researchers. People also are more likely to report feelings of excitement and enthusiasm on days when they are more physically active than usual.

Health | Source: Penn State | Views: 51 | Comments: 0
Lull in ship noise after Sept. 11 attacks eased stress on right whales

Exposure to low-frequency ship noise may be associated with chronic stress in whales, according to a study published today in the peer-reviewed Proceedings of the Royal Society B.

Marine Biology | Source: Duke University | Views: 42 | Comments: 0
Flipping a light switch in the cell: Quantum dots used for targeted neural activation

By harnessing quantum dots—tiny light-emitting semiconductor particles a few billionths of a meter across—researchers at the University of Washington (UW) have developed a new and vastly more targeted way to stimulate neurons in the brain. Being able to switch neurons on and off and monitor how they communicate with one another is crucial for understanding—and, ultimately, treating—a host of brain

Neuroscience | Source: Optical Society of America | Views: 32 | Comments: 0
Low dopamine levels during withdrawal promote relapse to smoking

Mark Twain said, "Giving up smoking is the easiest thing in the world. I know because I've done it thousands of times." Many smokers would agree that it's difficult to stay away from cigarettes. A new study in Biological Psychiatry this month now suggests that low dopamine levels that occur as a result of withdrawal from smoking actually promote the rela

Health | Source: Elsevier | Views: 62 | Comments: 0
Growing up on a farm directly affects regulation of the immune system

Immunological diseases, such as eczema and asthma, are on the increase in westernised society and represent a major challenge for 21st century medicine. A new study has shown, for the first time, that growing up on a farm directly affects the regulation of the immune system and causes a reduction in the immunological responses to food proteins.

Health | Source: University of Bristol | Views: 104 | Comments: 0
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Growing up on a farm directly affects regulation of the immune system

Immunological diseases, such as eczema and asthma, are on the increase in westernised society and represent a major challenge for 21st century medicine. A new study has shown, for the first time, that growing up on a farm directly affects the regulation of the immune system and causes a reduction in the immunological responses to food proteins.

Health | Source: University of Bristol | Views: 104 | Comments: 0
Unusual alliances enable movement

Some unusual alliances are necessary for you to wiggle your fingers, researchers report. Understanding those relationships should enable better treatment of neuromuscular diseases, such as myasthenia gravis, which prevent muscles from taking orders from your brain, said Dr. Lin Mei, Director of the Institute of Molecular Medicine and Genetics at Georgia Health Sciences Universit

Development | Source: Georgia Health Sciences University | Views: 33 | Comments: 0
Statistical model unlocks barriers to use of fingerprint evidence in court

Potentially key fingerprint evidence is currently not being considered due to shortcomings in the way it is reported, according to a report published today in Significance, the magazine of the Royal Statistical Society and the American Statistical Association. Researchers involved in the study have devised a statistical model to enable the weight of fingerprint evidence to be quantified, pa

Mathematics | Source: Wiley-Blackwell | Views: 39 | Comments: 0
Here comes the sun: New organic solar panels increase efficiency by 25%

New solar cells could increase the maximum efficiency of solar panels by over 25%, according to scientists from the University of Cambridge.

Energy | Source: University of Cambridge | Views: 35 | Comments: 0
Carbonized coffee grounds remove foul smells

For coffee lovers, the first cup of the morning is one of life's best aromas. But did you know that the leftover grounds could eliminate one of the worst smells around – sewer gas?

Chemistry | Source: City College of New York | Views: 51 | Comments: 0
VLT takes most detailed infrared image of the Carina Nebula

Deep in the heart of the southern Milky Way lies a stellar nursery called the Carina Nebula. It is about 7500 light-years from Earth in the constellation of Carina (The Keel) [1]. This cloud of glowing gas and dust is one of the closest incubators of very massive stars to the Earth and includes several of the brightest and heaviest stars known. One of them, the mysterious and highly unstable star

Astronomy | Source: ESO | Views: 50 | Comments: 0
Study examines role of bilingualism in children's development

A new study on children who are raised bilingual examined the effects on children's development of growing up speaking two languages. The study found that different factors were responsible for the language- and non-language-related outcomes of bilingualism found in previous research.

Development | Source: Society for Research in Child Development | Views: 50 | Comments: 0
Scared of a younger rival? Not for some male songbirds

When mature male white-crowned sparrows duel to win a mate or a nesting territory, a young bird just doesn't get much respect.

Animal Behavior | Source: Ohio State University | Views: 49 | Comments: 0
Preventing bacteria from falling in with the wrong crowd could help stop gum disease

Stripping some mouth bacteria of their access key to gangs of other pathogenic oral bacteria could help prevent gum disease and tooth loss. The study, published in the journal Microbiology suggests that this bacterial access key could be a drug target for people who are at high risk of developing gum disease.

Microbiology | Source: Society for General Microbiology | Views: 56 | Comments: 0
Not the black sheep of domestic animals

Mapping the ancestry of sheep over the past 11,000 years has revealed that our woolly friends are stars among domestic animals, boasting vast genetic diversity and substantial prospects for continued breeding to further boost wool and food production for a rising world population.

Genetics | Source: Public Library of Science | Views: 61 | Comments: 0
Mechanism of calming hyperactivity by psychostimulant drugs identified

It has long been known that psychostimulant drugs have the paradoxical effect of reducing hyperactivity. [Psychostimulant drugs include methylphenidate – known by the trade names Ritalin, Concerta, and Methylin – and methamphetamine]. Since the mid-1950s, millions of children and adults have been prescribed stimulant medications to control attention deficit hyperactivity disorder (ADHD). But for m

Neuroscience | Source: SUNY Downstate Medical Center | Views: 60 | Comments: 0
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