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Science News Archive June 2007 - Page 4


Page 4 of 17

Why a Rocky Mountain high?

A University of Utah study reveals that temperature differences within Earth's crust and upper mantle explain about half of North America's elevation. Coastal cities, including New York City and Boston, would be underwater if not for the buoyant effect of heat on rock, with elevations ranging from 1,427 to 3,756 feet below sea level.

Spuds that like you -- in your summer salad

Spanish researchers found that pigs fed large quantities of raw potato starch had a healthier bowel and decreased levels of white blood cells. The study, published in Journal of the Science of Food and Agriculture, suggests a potential beneficial effect on overall immune system health.

SourceSociety of Chemical Industry·JournalJournal of the Science of Food and Agriculture·DateJun 24, 2007

Targeting key proteins of carcinogenesis

Researchers at Goethe University Frankfurt have identified a novel Ub conjugation reaction that allows for more efficient manipulation of key proteins in the treatment of cancer and other diseases. This discovery provides a basis for novel therapeutic approaches that are more specific than existing drugs like Bortezomib.

SourceGoethe University Frankfurt·JournalMolecular Cell·DateJun 22, 2007

New nanomethod may help compress computer memory

Researchers at Brown University have developed a technique to synthesize iron-platinum nanorods and nanowires with controlled size, composition, and magnetic alignment. The method produces batches of similarly-sized nanowires or rods in solution, showing promise for high-density information storage and other applications.

Dead on target

Researchers have developed multifunctional nanoparticles that target and image cancer cells by exploiting overexpression of folic acid receptors. These dendrimer-based systems can accumulate in diseased cells and retain bright fluorescence, allowing for easy visualization via confocal microscopy.

SourceWiley·JournalSmall·DateJun 22, 2007

DIY anti-satellite system

Researchers warn of vulnerability to satellite attacks due to low technical barriers, threatening global positioning systems, weather satellites, and more. With a college-level team and intermediate-range missiles, amateurish yet effective attacks can be launched.

SourceInderscience Publishers·JournalInternational Journal of Critical Infrastructures·DateJun 22, 2007

New mangosteen research establishes xanthone measurement standard

Researchers established a credible scientific method for testing and measuring xanthones in whole mangosteen fruit, which shows high xanthone absorption when using the entire fruit as a delivery vehicle. This study ensures consistent and reliable marketing of mangosteen products to consumers relative to claims of xanthone content.

SourceMWW Group·JournalJournal of Separation Science·DateJun 22, 2007

Gene therapy for Parkinson's disease

A study published in The Lancet found that gene therapy can safely alleviate symptoms of Parkinson's disease, with significant improvements seen in movement and motor scores. The treatment involves injecting genetic information directly into brain cells, eliminating the need for indwelling hardware associated with deep-brain stimulation.

SourceThe Lancet_DELETED·JournalThe Lancet·DateJun 21, 2007

JCI table of contents: June 21, 2007

Researchers found that a nutritionally balanced diet high in omega-3 fatty acid reduced prostate tumor growth and increased survival in genetically predisposed mice. Omega-6 fatty acids had the opposite effects. The study suggests a beneficial effect of omega-3 polyunsaturated fatty acids on delaying human prostate cancer.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 21, 2007

Meaningful leisure can mean many things

A study by Yoshi Iwasaki explores the role of enjoyable and expressive activities in promoting quality of life across cultures. The findings suggest that culturally-based leisure-like pursuits can enhance well-being, self-esteem, and resilience, particularly in less-privileged populations.

SourceTemple University·JournalSocial Indicators Research·DateJun 21, 2007

Ovarian cancer is not a symptomless killer

Recent evidence shows ovarian cancer is preceded by symptoms like gastrointestinal or urinary issues in three to four months before diagnosis. Patient groups urge women to seek medical attention for new and persistent symptoms, while experts acknowledge the need for clinical judgement and more research funding.

SourceThe Lancet_DELETED·JournalThe Lancet·DateJun 21, 2007