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Think small when powering today's electronic soldier

On the battlefield, having a reliable source of power to operate the many advanced electronic devices a soldier carries is essential. But today’s heavy and cumbersome batteries fall short in satisfying the military’s needs. In search of both a lightweight and reliable alternative, the Department of Energy’s Pacific Northwest National Laboratory has developed the smallest power system yet, all wrapped up in a micro-sized package.

Component in plastic bottles found to cause abnormal pregnancies in mice

Researchers have found disturbing new evidence suggesting that environmental exposure to a ubiquitous substance may cause chromosomally abnormal pregnancies. They have learned that low levels of a compound used in the manufacture of common plastic food and beverage containers and baby bottles interfere with cell division in the eggs of female mice. The disruption of cell division can result in an abnormal number of chromosomes in the eggs, a condition known as aneuploidy, which is the leading cause of mental retardation and birth defects in humans. Down syndrome is an example of a disorder caused by the addition of an extra chromosome.

FDA approves psoriasis drug

Alefacept, a specially designed molecule that blocks a specific immune-system reaction involved in the painful skin condition psoriasis, was approved for marketing today under the name Amevive. Biogen, Inc. of Cambridge, Mass., will market the drug. Alefacept traces its roots to research done at the U-M in the mid-1990s by a team led by former dermatology faculty member Kevin D. Cooper, M.D. The University and Biogen share the patent on the engineered molecule with Cooper, who is now chair of dermatology at Case Western Reserve University in Cleveland.

Nanodevice breaks 1-GHz barrier

Nanoscientists have achieved a milestone in their burgeoning field by creating a device that vibrates a billion times per second, or at one gigahertz (1 GHz). The accomplishment further increases the likelihood that tiny mechanical devices working at the quantum level can someday supplement electronic devices for new products.

New study shows tea extract protects skin

Scientists have proven that ingredients in white tea are effective in boosting the immune function of skin cells and protecting them against the damaging effects of the sun. The discovery that white tea extract protects the skin from oxidative stress and immune cell damage adds another important element in the battle against skin cancer.