In the News
Where Bacteria Get Their Genes
Bacteria acquired up to 90 percent of their genetic material from distantly related bacteria species, according to new research. The finding has important biomedical implications and solves a long-standing paradox in evolutionary biology. Capping Two-faced 'Janus' Nanoparticle Gives Engineers Complete Contro
Engineers say they can for the first time control all the degrees of a nanoparticle's motion, opening up broad possibilities for nanotechnology and device applications. PlayStation's New President
After a shaky PlayStation 3 launch, president of U.S. operations Kaz Hirai moves to Tokyo to replace Ken Kutaragi. Jack Tretton steps into the top U.S. post. In Game|Life. Theory Of Oscillations May Explain Biological Mysteries
An article by John Vandermeer of the University of Michigan shows how extensions of established theory can model coupled oscillations resulting from interactions such as predation and competition. Such coupling can have far-reaching effects that may explain the higher-than-expected diversity of plankton in aquatic ecosystems and other paradoxes of species distribution. Research Identifies Proteins Crucial To Construction Of Brain's Inform
Communication in the brain travels from one nerve cell to another through critical connections called synapses. These neuron-to-neuron junctions form early in brain development, and their construction was thought to be guided by the nerve cells themselves. Now, investigators have discovered that cells called glia, known to provide support for neurons in the mature brain, also play a crucial role in formation of synapses during the surge of development following birth. Study Shows Haploidentical Natural Killer Cells May Provide Hope For S
A University of Minnesota Cancer Center study indicates natural killer cells obtained from a family member and artificially stimulated may provide renewed hope for some patients who have advanced acute myelogenous leukemia (AML), a highly fatal cancer of the bone marrow, that has become resistant to standard treatment with chemotherapy. Real-time 3-D Ultrasound Speeds Patient Recovery
Mayo Clinic physicians have adapted real-time 3-D ultrasound imaging devices -- including one designed to look at an infant's heart -- so that they can watch as they use a needle filled with anesthetic to numb individual nerves located inches under the skin. In this way, they can quickly block nerve function in selected areas of the body prior to surgery, an advance that may spare patients from use of general anesthesia, and sends them home faster and with less need for pain medication. Indoor air pollution
Sick building syndrome and multichemical sensitivity may not hit the headlines as often as they used to, but they do continue to represent an important health and safety issue for those who manage work place environments.Now, researchers in Sweden have carried out a detailed analysis of volatile organic compounds (VOCs), such as aldehydes, amines, and [...] Active Lifestyle Reduces Risk Of Invasive Breast Cancer
Six or more hours per week of strenuous recreational activity may reduce the risks of invasive breast cancer by 23 percent, according to researchers from the University of Wisconsin Paul P. Carbone Comprehensive Cancer Center (UWCCC). Their report in the February issue of Cancer Epidemiology Biomarkers &Prevention, based on a survey of over 15,000 women, shows that exercise has a protective effect against invasive breast cancer throughout a woman's lifetime. Book Makes Case For Using Evolution In Everyday Life
Evolution is not just about human origins, dinosaurs and fossils, says Binghamton University evolutionist David Sloan Wilson. It can also be applied to almost every aspect of human life, as he demonstrates in his first book for a general audience, Evolution for Everyone: How Darwin's Theory Can Change the Way We Think About Our Lives (Bantam Press 2007).
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