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Science News for August 5, 2003


Other highlights in the August 6 issue of JNCI

Consuming phytoestrogens found in plant foods like soy is associated with a reduced risk of endometrial cancer. Imiquimod has been shown to induce apoptosis in skin cancer cells, while an integrin polymorphism may increase cancer progression. The study on breast cancer survivors also found increased numbers of circulating T lymphocytes.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateAug 5, 2003

Is erosion helping Himalayas to grow?

Researchers from Lehigh University and other institutions have found evidence suggesting that erosion and tectonic processes are contributing to the growth of the Himalayas. The study uses short- and long-term measurements, including seismological, geomorphic, and GPS data, to understand the geological processes at play.

Drought

The presentation highlights the impacts of major water restrictions and efforts toward community communication during severe droughts. Researchers explore the management of freshwater inflow criteria for affected regions, examining vulnerability to aquatic resources and allocation of water resources in South Africa.

Optical control technique could enable microfluidic devices powered by surface tension

Researchers at Georgia Tech have developed an optical control technique that can enable the production of new types of microfluidic devices without etching channels. By using lasers to create complex patterns of varying-intensity light on a substrate material, differential heating can be achieved, resulting in thermocapillary action an...

SourceGeorgia Institute of Technology Research News·JournalPhysical Review Letters·DateAug 5, 2003

Eliminating hunger in a world of plenty

The American Dietetic Association asserts that access to adequate nutrition is a fundamental human right, and that hunger continues to affect millions worldwide. The organization supports programs combating hunger and malnutrition, promoting food security and self-sufficiency.

SourceAmerican Dietetic Association·JournalJournal of the American Dietetic Association·DateAug 5, 2003

Purdue scientists discover why we're all lefties deep down

Recent research by Purdue University scientists suggests that the first building blocks of life were left-handed and that a single amino acid called serine set the standard eons ago. This led to all living things evolving using only amino acids of the left-handed variety, forcing other biological molecules to follow suit.

SourcePurdue University·JournalAngewandte Chemie·DateAug 5, 2003

Pigeonholing quantum phase transitions

Researchers have made significant progress in understanding the behavior of materials at quantum critical points, a stage where materials change phases. The new classification system has shed light on the relationship between quantum criticality and high-temperature superconductivity.

SourceRice University·JournalPhysical Review Letters·DateAug 5, 2003

The matrix, seismically loaded

Scientists tested a synthetic earthquake on a half-real building with conventional and simulated steel support columns. The experiment, called the 'Multi-Site Online Simulation Test,' used grid-linked machines to create a realistic simulation of an earthquake, producing a profusion of real-time data.