New Sensor Provides First Instant Test For Toxic E. coli Organism
...ning in Japan, and a current outbreak in Scotland that is linked to 10 deaths. Raymond Stevens, a chemist...Says Stevens, "These sensors have been designed so that the presence of the toxin produced by thisstrain of E. coli causes a color change, from blue to red....Scientists Identify Gene For Sexual Behavior In Male Flies
...eir researchis the first to pinpoint a single gene that works in the brain to governnearly all aspects of ...ndeis University) Geneticists have known for years that the gene, called fruitless and nicknamed fru , influences sexual orientation in the fly Drosophila...Methane Deep In Ocean Crust Could Feed Chemical-Hungry Microorganisms
Evidence is surfacing that searing temperatures and crushing pressures are cr...Geological Society meeting in San Francisco saying that a significant reservoir of methane and hydrocarbons may be found in rock beneath the seafloor. Such...Scientists Discover Smallest Frog
... also is the smallest of the tetrapods, a grouping that includes all animals with backbones except fishes....iotic surveys and inventories program is unique in that its purpose is funding the discovery of species new to science," says Meredith Lane, director of the...World's Experts Plan Global Locator Service For Environmental Information
...tual library of environmental data and information that will be easily accessible on global networks. ...rtunately, many potential users either do not know that it exists or do not know how to access it. This initiative will make use of base standards that are...Robots, Virtual Reality & Other "Smart" Tools Soon Will Help Physicians Heal Patients
...urgeons to rapidly develop research and technology that can provide more precise information and procedure.... "We hope soon to see new, sophisticated systems that physicians can use to improve patient care and, in many cases, even lower the cost of treatment." ...Disease Resistance Mechanism Identified in Plants
...el, the researchers confirmed a decades-old notion that disease resistance in plants is triggered by the i...mune response from the plant. Researchers suspect that the resistance mechanism observed in tomatoes also occurs in many other plants. Their results appea...Christmas Bird Count: Another Holiday Tradition
...ristmas morning, when you have finished setting up that new computer, you can view the results of thousand...weather, carefully recording their observations so that future Americans can better understand the changes in our bird populations. And next year, ...Mechanism For Disease Resistance Identified In Plants
...el, the researchers confirmed a decades-old notion that disease resistance in plants is triggered by the i...mune response from the plant. Researchers suspect that the resistance mechanism observed in tomatoes also occurs in many other plants. Their results appea...Researchers Find How Disease-resistant Plants Recognize Bacteria
...sts at Purdue University have uncovered how plants that are resistant to disease recognize disease-causing microbes, a development that experts predict will lead to crops that are better able to resist disease naturally. Gregory B. Mart...Urbanized Watersheds More Sensitive To Climate Change
...they have all been done on undeveloped watersheds that are minimally impacted by humans," says Dr. David ...northeastern sector is complete. "It is obvious that stream flow increases with an increase in precipitation, but in the Northeast, we find that with a ...Pinpoint Gene Control Holds Promise For Nervous System Studies
...the genefor nerve growth factor (NGF), a substance that has beendifficult for scientists to study because ...udy a gene is to have the abilityto turn on or off that gene at any time that you wish, at anyplace that you wish. This new approach allows us this level of...New Finding Suggests "HATs" Are Key To Gene Activation Puzzle
...ng sought to better understand thepuzzling process that turns genes on. Now, they have uncovered evidence that adds significantly to the developingpicture of how genes are activated. The findings from the Univer...Prostate Cancer May Be Predicted 10 Years Before Diagnosis
... to liquefy the seminal fluid after ejaculation so that sperm can swim freely. Some PSA leaks into the bl...binds to alpha-1 antichymotrypsin (ACT), a protein that prevents PSA from destroying cells by deactivating enzymatic function. Free PSA (the unbound form o...A Sensor, A Switch, A Zipper: Protein Engineers Design Potential Tool
...lifornia, Berkeley have designed a protein that toggles between two different structures u...esponse to outside signals. The scientists predict that with further refinements, their protein may one day be used to detect environmental ...Proteins Interacting With RNA And DNA Are Surprisingly Similar
...ibioticshave made asurprising discovery; a protein that attaches itself to RNA,making itpossible for a cer...ection,is remarkablysimilar to a class of proteins that bind to DNA. The proteins have the same general shape, and they use a similarmethod tobind to RNA an...ORNL Mice Helping Researchers Isolate, Identify Causes Of Cancer
...lymphoma and other illnesses in people. "Lymphomas that develop spontaneously in the mouse are very useful...leukemia. Now, however, Justice and colleaguesknow that the mice get cancer because of murine leukemia retroviruses. "One way these retroviruses can cause c...New Nonviral Gene Therapy System Could Help Fight Cancer
...ersity haveinvented a nonviral gene therapy system that could aid scientists inthe search for a better tre...types of genesusing the T7 system, including genes that promote anti-canceractivity," Wagner said. The T7 vector gene therapy system is unique because ...ORNL Microscope "Sees" Bumps That Reveal Partial DNA Structure
...e AFM is a microscope capable of atomic resolution that produces athree-dimensional image by tracing the surface of a material, similar tothe arm and needle of a phonograph playing a record. The research, which was performed for the Human Genome Project, was fundedby the Department of Energy's Office of H......ebo-controlled cancer prevention study with humans that directly supports the thesis that a nutritional supplement of selenium, as a single agent, can reduce the risk of cancer," said Gerald...