Sunday, October 26, 2008

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News

Climate Change, Acid Rain Could Be Good For Forests

Posted: 26 Oct 2008 07:00 PM CDT

After more than 20 years of research in the northern hardwood forests of Michigan, scientists have reached a surprising conclusion: Moderate increases in temperature and nitrogen from atmospheric pollution actually improve forest productivity.

Green Tea May Delay Onset Of Type 1 Diabetes

Posted: 26 Oct 2008 07:00 PM CDT

A powerful antioxidant in green tea may prevent or delay the onset of type 1 diabetes, Medical College of Georgia researchers say. Researchers were testing EGCG, green tea's predominant antioxidant, in a laboratory mouse with type 1 diabetes and primary Sjogren's syndrome, which damages moisture-producing glands, causing dry mouth and eyes.

Victorian Manchester Home To First Youth Gangs

Posted: 26 Oct 2008 07:00 PM CDT

A historian has uncovered extensive archive material detailing the activities of the 'scuttlers' - one of Britain's earliest youth cults.

Mechanism In Cells That Generate Malignant Brain Tumors May Offer Target For Gene Therapy

Posted: 26 Oct 2008 07:00 PM CDT

The researchers who first isolated cancer stem cells in adult brain tumors in 2004 have now identified a molecular mechanism that is involved in the development of these cells from which malignant brain tumors may originate. This could offer a target for scientists seeking treatments that would kill malignant brain tumors at their source and prevent them from recurring.

Mapping A Clan Of Mobile Selfish Genes

Posted: 26 Oct 2008 07:00 PM CDT

Alu retrotransposons are gradually changing human DNA by making copies of themselves and "jumping" to new locations. Their activity appears to depend on being able to mimic parts of the cell's internal machinery. To identify the Alu retrotransposons that are still capable of moving around, researchers divided them into families and tested a representative of each family in the laboratory.

Could Your Initials Influence Where You Choose To Work?

Posted: 26 Oct 2008 07:00 PM CDT

The "name-letter effect," is a phenomenon which shows that we have a preference for things that begin with the same letter as our first name. Belgian psychologists wanted to know if this effect is strong enough to affect where we work. The researchers found 12 percent more matches between employee initials and their company's name than was expected based on a probability estimate, indicating "name-letter effect" occurs between employee names and the company they work for.

Dolphins Use Complex Coordination During Predation, High-tech Acoustics Study Finds

Posted: 26 Oct 2008 01:00 PM CDT

Spinner dolphins have long been known for their teamwork in capturing prey, but a new study using high-tech acoustics has found that their synchronization is even more complex than scientists realized and likely evolved as a strategy to maximize their energy intake.

Human Brain Minimizes Energy Expenditure And Integrates Gravity Into The Action Plan

Posted: 26 Oct 2008 01:00 PM CDT

When reaching for an object, the brain prepares neural commands sent to the target muscles to minimize energy expenditure, according to a new study.

Phony Friends? Rejected People Better Able To Spot Fake Smiles

Posted: 26 Oct 2008 01:00 PM CDT

All of us have "faked a smile" at some point. Now, a new study might make us think twice about sending out a phony grin. It has been shown that individuals who are experiencing rejection are better at picking up subtle social cues and according to a recent study published in Psychological Science, socially rejected people are particularly good at discerning fake smiles from real ones.

Practice Makes Perfect In Lung Cancer Surgery, Study Finds

Posted: 26 Oct 2008 01:00 PM CDT

Patients operated on by surgeons who do not routinely remove cancer from the lungs may be at a higher risk for complications, according to new study.

Making Flies Sick Reveals New Role For Growth Factors In Immunity

Posted: 26 Oct 2008 01:00 PM CDT

A salmonella infection is not a positive experience. However, by infecting the common laboratory fruit fly Drosophila melanogaster with a Salmonella strain known for causing humans intestinal grief, researchers have shed light on some key cell regulatory processes -- with broad implications for understanding embryonic development, immune function and congenital diseases in humans.

Why Some People Have A Better Head For Languages

Posted: 26 Oct 2008 01:00 PM CDT

Learning a second language is usually difficult and often when we speak it we cannot disguise our origin or accent. However, there are important differences between individuals with regard to the degree to which a second language is mastered, even for people who have lived in a bilingual environment since childhood.

Protein Compass Guides Amoebas Toward Their Prey

Posted: 26 Oct 2008 07:00 AM CDT

Amoebas glide toward their prey with the help of a protein switch that controls a molecular compass, biologists have discovered.

Cancer Vaccine Shows Promise In Patients With Bowel, Kidney And Prostate Cancer

Posted: 26 Oct 2008 07:00 AM CDT

Analysis of data from several phase I and II clinical trials of a new cancer vaccine has shown it is capable of eliciting an immune response in most patients with bowel, kidney and prostate cancer, and that it may provide clinical benefit.

Seabass And Chips: Harnessing Science To Predict Ocean Climate Change

Posted: 26 Oct 2008 07:00 AM CDT

Cod, salmon and eels and other native cold water fish might eventually become a rarity in Irish waters--and not necessarily because of overfishing, pollution or habitat destruction. Long-term changes in the temperature and salt content of our regional seas, brought about by climate change, may force species such as these into deeper, colder waters and replace them with warm water species such as sea bass and boarfish.

Post-cardiac Arrest Care Key To Survival

Posted: 26 Oct 2008 07:00 AM CDT

The urgent need for treatment doesn't end when a person regains a pulse after suffering sudden cardiac arrest — healthcare providers need to move quickly into post-cardiac arrest care to keep a person alive and ensure the best outcome. That's the conclusion of the American Heart Association science advisory published in Circulation: Journal of the American Heart Association.

Alternative Medicine And Heavy Metal Poisoning

Posted: 26 Oct 2008 07:00 AM CDT

Many Ayurvedic medicines can contain dangerous quantities of heavy metals, including lead, mercury, thallium and arsenic, according to clinical toxicology specialists in London writing in the International Journal of Environment and Health.

Spirituality Protects Against Depression Better Than Church Attendance

Posted: 26 Oct 2008 07:00 AM CDT

Researchers have found that the different ways people worship a higher power can offer some insight into their risk for depression.

Rapid HIV Testing In The ER Boosts Diagnoses, Screening

Posted: 24 Oct 2008 11:00 PM CDT

One in every 50 people screened for a suspected sexually transmitted infection in the Emergency Department at Henry Ford Hospital was found to be infected with HIV using a rapid blood sample screening test.

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