Invasive Weeds Pose Major Threat To American Landscape
... into everycorner of our nation to compete with -- often to destroy-- the wonderful varietythat nature once... limit their reproduction, and thus easily spread, often unchecked. Inaddition, aggressive non-native species often deal a harsh blow to rare species-- about...Poison-Eating Bugs Strike Gold
...reams from inland gold mines, where clean water is often a scarce and costly commodity. Based on a process used by the Homestake mine in the United States, this system uses uniquely Australian organisms adapted to the local conditions. "We found these bacteria thriving in the tailings ponds of a gol......be an important finding for premature infants, who often lacka competent skin barrier," said Mary Williams, MD, UCSF adjunct professor ofdermatology and pediatrics. "An immature skin barrier can contribute to theillness and death of these premature infants." Williams and her UCSF research ......ity, a life-threatening, yet common condition that often lies at the root ofother serious illnesses such as diabetes and cardiovascular disease. The study will be reported inthe journal Synapse (vol 29, No. 4), available in May on the Synapse website. The neurotransmitter is called CART peptide, for Cocai...Virginia Tech Scientists Study 'Killer' Molecules
...ial cells, which line the surfaces of vessels, are often damagedby immune cells which flock to sites of inflammation associated with infections,autoimmune disorders, and transplant rejections. With funding from the National Heart, Lung, and Blood Institute, theresearchers will examine the role of ?...New Study Shows White Males Have More Receptors For Patent Blood-Vessel Contracting Substance
... than whites. Malesdie from heart attacks far more often than females. Women suffer from migraineheadaches more often than men. The reasons are complex, and only now arescientists discovering why. A new discove......le remains highly controversial. Laws and policies often restrict their access to such services. In Kenya, ...nts, and AIDS with just 1 in 14. Such services are often the only contact women have with the health system and thus an important opportunity for educating w...The First Rejection: Eggs Sequester Bits Of Sperm For Later Elimination
...n B. Karr and Pitnick, who have been studying the often bizarre sperm-egg interactions of Drosophila for several years, previously noticed that the long tails of fruit fly sperm entered the egg during fertilization, undermining the idea that the only role of the sperm tail is to propel its genetic cargo ...Web Site Offers Comprehensive Information On Mad Cow Disease
...cluding 12,000 in 1997. The three professors meet often to review new information on the topicand add it to the Web site. When created in April 1996, the U. of I. Website had only about three companion sites on the Web. Today, Novakofskiestimates there are at least 100. "We thought all the interest would...Results Of Hog-Stress Study May Lead To Better Management Methods
...onal Pork Producers Council and Cargill Inc. Pigs often face a variety of other environmental stresses on ... degrees Celsius (82 to 93 degrees Fahrenheit), is often uncontrollablein that applicable cooling systems are not entirely effective, and air-conditioningfor...Birds Sing The 'Story Of Their Lives,' Theorize Duke Biologists
...male expression of the trait. Such traits, often cited, are the showy plumage of male birds, from themale peacock's tail to the brilliant scarlet of the male cardinal. The intricatewarbling of male song birds is, indeed, a highly exaggerated trait, Nowickisaid. "Bird song is far more comple...Ulcer-Causing Bacteria Also May Be Associated With Heart Disease
... heart disease."H. pylori is one of four organisms often investigated for an association withheart disease. The other three -- including Chlamydia pneumoniae,cytomegalovirus and herpes -- cause low-grade, life-long infections that canproduce a smoldering inflammation, the kind that leads to heart disease,...Pediatric Academic Societies Report Progress In Children's Health
...te the long-held beliefthat cocaine-exposed babies often suffer major birth defects, Dr. Marylou Behnkeand colleagues at the University of Florida College of Medicine found noconsistent pattern of abnormalities in these children. In fact, more than 75percent of the babies studied had no major problems, the...Cystic Fibrosis Gene Protects Against Typhoid Fever
... underscores how basic research in onedisease area often leads to discoveries in another area," says NIAID DirectorAnthony S. Fauci, M.D. "It also is a good example of how pathogenesis research- the study of how pathogens interact with the host to cause disease - createsopportunities for applied research....New Machine Slashes Time, Cost To Make Unique Lenses
...fore reaching the mass-production stage, companies often spend hundreds of thousands ofdollars creating asphere prototypes the old-fashioned way; Goliniexpects that much of the demand for the new grinder will actuallycome from large companies that spend heavily on hand-craftedtemplates while developing new...New Airway's 'Smarts' Ensure That Patients Get Plenty Of Oxygen
...of emergency medicine at Rochester. "But much more often it'sdone by paramedics in the field -- a noisy, uncontrolled settingwhere intubation may be greatly complicated by patients who arebloody or vomiting, or who have trauma to the face or throat.There's also sufficient jostling en route to the hospital ...High-pressure Oxygen Therapy Could Offer Widespread Benefits
...el is blocked, and reopened, surrounding tissue is often subjected to whatare called "reperfusion injuries." Some studies suggest that these injuries mayoccur because of abnormal immune system response to the return of blood flow. These injuries seem to benefit from hyperbaric oxygen therapy,sugge...Schmidt-Nielsen Autobiography Details Scientific Adventures
...egrees from the University of Copenhagen. "I have often wondered what made me a physiologist and not an engineeror a carpenter or a physician," he writes. "I could probably havemanaged reasonably well in any of those fields. But as I was always curiousabout animals, and because my father eventually permit...Wistar Scientist Awarded American Cancer Society Grant For Research On Gene Therapy
...sarcoma (ARMS), a highly malignant tumorfound most often in the skeletal muscles of children. Dr. Rauscher and his Wistar research team believe that ARMS results from theunnatural fusion of what scientists call the PAX3 and FKHR genes. In thiscombination, they appear to act as an oncogene, which is a ge......leaning up contaminated aquifers areexpensive, yet often ineffective. Kathryn M. Hess, Research Hydrologist withthe U.S. Geological Survey in Marlborough, Massachusetts, describes experimentsin which natural processes have restored polluted ground water at low cost. Onelocal example concerns sewage contami...