In the News
Chemists Reinvent The Science And Industry Of Making Plastics
Chemists at the University of Pennsylvania have created a new process for free radical polymerization, the chemical reaction responsible for creating an enormous array of everyday plastic products, from Styrofoam cups to PVC tubing to car parts. Unlike the "traditional"method for living polymerization, which has been around for more than 50 years, this method takes place at room temperature, uses less metal catalyst to drive the reaction and requires a very short reaction time. Cellular Pump Sabotages Cancer Drug Studies That Use 'Glow Chemical'
Scientists have by chance discovered that a widely used means of illuminating cancer cells could undermine studies of the potential value of experimental anti-cancer drugs because the natural "pump"that cells use to clear out the chemical light source alters their chemistry. Scientists have increased their use of "glowing"markers to track cellular activity in rats and mice, in part, because the tactic is non-invasive and more humane for the animals. Hunting Martian Fossils Best Bet For Locating Mars Life, Says Research
Hunting for traces of life on Mars calls for two radically different strategies, says Arizona State University professor Jack Farmer. Of the two, he says, with today's exploration technology we can most easily look for evidence for past life, preserved as fossil "biosignatures"in old rocks. Gallery: Chinese Space Adventures
Will China become the launch pad of choice for a generation of out-of-this-world tourists? Nanowires In Blood Vessels May Help Monitor, Stimulate Neurons In The
Working with platinum nanowires 100 times thinner than a human hair--and using blood vessels as conduits to guide the wires--a team of U.S. and Japanese researchers has demonstrated a technique that may one day allow doctors to monitor individual brain cells and perhaps provide new treatments for neurological diseases such as Parkinson's. Pheromones Identified That Trigger Aggression Between Male Mice
This study is the first to identify protein pheromones responsible for the aggression response in male mice. The findings could provide a tool for understanding the neural pathways that play a role in human behavior. Women Still At Risk Of Cervical Cancer Despite Treatment Removing Pre-
Women who have had pre-cancerous cells removed remain at higher than average risk of developing cervical cancer in the 20 years following treatment, says research in this week's BMJ. Effects Of Progesterone On Alzheimer's Disease
The first study on progesterone and Alzheimer's disease has found no clear preventive benefit for the widely prescribed hormone in an animal model. Progesterone is given with estrogen in hormone replacement therapy. Previous studies have suggested that estrogen offers women some protection against Alzheimer's disease. Uncovering The Mechanisms Underlying Lung Scarring
Pulmonary fibrosis is an incurable disease where the lung becomes scarred due to pathologic accumulation of fibrous scar tissue. Telomerase is a protein most notable for its connections to aging and cancer, but it has also been shown to have increased activity in mice with lung fibrosis. Haley, Alex
Essay about U.S. author Alex Haley, "best known for as the author of the novel 'Roots: The Saga of an American Family,' from which two television miniseries, 'Roots' and 'Roots II,' were adapted."The focus of this article is on the television series and Haley's impact on TV history. Includes a brief biography and a bibliography. From the Museum of Broadcast Communications.
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