In the News
Physical Activity Linked To Protection From Parkinson's Disease
In the first comprehensive examination of strenuous physical activity and the risk of developing Parkinson's disease, researchers from the Harvard School of Public Health (HSPH) have found that men who exercised regularly and vigorously early in their adult life had a lower risk for developing Parkinson's disease compared to men who did not. Secrets Of Protein Folding Coming Unlocked
Scientists are unraveling the mystery of how proteins fold into unique, three-dimensional shapes. Proteins are the workhorses of the body, taking on a wide variety of tasks. They fight infections, turn food into energy, copy DNA and catalyze chemical reactions. Insulin is a protein, as are antibodies and many hormones. A protein is a string of amino acids, and what it does is determined by the shape it takes. Model Gives Clearer Idea Of How Oxygen Came To Dominate Earth's Atmosp
A new model offers plausible scenarios for how oxygen came to dominate Earth's atmosphere 2.4 billion years ago, and why it took at least 300 million years after bacterial photosynthesis started producing oxygen in large quantities. National Dog Bite Prevention Week, May 15-21, 2005
This publicity kit from the United States Postal Service (USPS) provides data and related information about dog bites in the U.S. It features data from the Occupational Safety and Health Administration (OSHA) on dog bite accidents in 2003 and 2004, and tips for avoiding dog bites. Note: Although this material is designed for the postal service, much of the information is applicable to the general public. New Brain Mechanism Identified For Interpreting Speech
In conversation, humans recognize words primarily from the sounds they hear. However, scientists have long known that what humans perceive goes beyond the sounds and even the sights of speech. The brain constructs its own unique interpretation. Scientists have now identified brain areas responsible for this perception. One of these areas, Broca's region, is typically thought of as an area of the brain used for talking rather than listening. Colon Cancer A Disease Of Hormone Deficiency, Scientists Suggest
Researchers have found new evidence suggesting that colon cancer is a disease of missing hormones that could potentially be treated by hormone replacement therapy. Early in colon cancer development, two intestinal cell growth-controlling hormones are "lost,"disrupting the activity of the hormones'receptor, GCC. Using two mouse models of colon cancer development in people, the scientists showed that GCC signaling blocks tumors from forming, meaning that colon cancer could be a disease of hormone insufficiency. Lifestyle Changes Can Improve Male Sexual Function, According To New S
In a study published in the February 2007 issue of the American Journal of Medicine, researchers report that erectile dysfunction was significantly and independently associated with age, cardiovascular disease, diabetes, and lack of physical activity. There was an especially high prevalence of erectile dysfunction among men with hypertension and diabetes, suggesting that screening for erectile dysfunction in these patients may be warranted. The People's Magic Bus
Sure, '60s-era beach bums dug the Volkswagen bus. Now a research lab enhances one with souped-up electronics. From Wired magazine. The Arthur H. and Mary Marden Dean Lafayette Collection, 1520-1849
Guide to this collection of "over 10,000 items concerning the life and career of Marie Joseph Paul Yves Roch Gilbert du Motier, marquis de Lafayette (1757-1834), best known for his role in the American and French Revolutions."Features biographical details and digitized letters, broadsides, cartoons, and other documents related to Lafayette. From the Division of Rare &Manuscript Collections, Cornell University Library. Rapid Progress Reported In Emerging Field Of Molecular Electronics
The emerging field of molecular electronics -- using nanoscale molecules as key components in computers and other electronic devices -- is in excellent health and has a bright future, conclude UCLA, Caltech and University of California, Santa Barbara, chemists who assess the field in the Dec. 17 issue of the journal Science.
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