Two Environmental Articles: Deformed Frogs & Dioxin In Old Soil
...mple The discovery by K. C. Jones and his colleagues at Lancaster Universityin Lancaster, U.K., of a previously unopened bottle of soil collected in 1881from an agricultural experimental station northwest of London has allowed ascientific look back before the modern chemical industry existed. Jones wa...... at The Scripps Research Institute(TSRI) and their colleagues at the R.W. Johnson Pharmaceutical ResearchInstitute have developed a series of new antibacterial compounds designedspecifically to target the biological mechanisms by which bacteria establish aninfection in the host. With resistance to antibiotics a...High-Altitude Cerebral Edema Likely Caused By Leaks In Blood-Brain Barrier
...gical Surgeons in Philadelphia. Krasney and colleagues in UB's Hermann Rahn Laboratory of Environmental P...leaks in the blood-brain barrier. Krasney and colleagues are attempting to clarify further the importance of these mechanisms in the development of acute mou......." Williams and her UCSF research colleagues presented their findings onfetal skin development ...barrier formation. Williams and research colleagues have previously shown that certainactivators, molecules that bind to the surface or receptors of hor...Social Stress Shortens Lives Of Monkeys With AIDS
...even hasten death. Psychologist John Capitanio and colleagues found that in monkeys with an AIDS-like illness, those allowed to form stable social relationships lived longer than those whose social groups continually changed. The findings have important implications for people with AIDS, Capitanio said. "Around...Bison Grazing Increases Biodiversity In Grasslands
...-use changes, scientists believe. Collins and his colleagues conducted two long-term field experiments in native grasslands to assess effects of fire, addition of nitrogen, and grazing on plant species diversity. In one experiment, species richness declined on burned and fertilized areas, whereas grazing main...Inhibitor Shows Potential To Protect Infant Brain
...hich results in loss of brain tissue. Holtzman and colleagues showed, however, that while some neurons swell up and burst, as happens rapidly in adults with head injury or stroke, many neurons slowly shrink through a process resembling cell suicide. A series of genetically programmed steps lead to cell suicide...Mowing, Grazing Of Tall-Grass Prairie Increases
..., John Blair and John Briggs, along with two other colleagues have been conductinglong-term studies on the effects of fire, grazing and climatic variability on tall grass prairies. Thison-going research looks at these various factors alone and in combination. "One of the things we have learned in the past is th...Precursors To Red Blood Cells Form Earlier Than Previously Thought
...rics and the team's lead researcher. Palis and his colleagues found that blood cell precursorsoriginate soon after the first appearance of mesoderm cells inthe embryo. These findings suggest that mesoderm cells becomecommitted to blood cell fates during earliest stages ofgastrulation. Red blood cells form in tw...Web Site Offers Comprehensive Information On Mad Cow Disease
..., short answers." Novakofski teamed with U. of I. colleagues Susan Brewer, a professorin the department of food science and human nutrition, and Richard Wallace,a professor in the College of Veterinary Medicine, to create the Web site,which has drawn more than 20,000 visitors, including 12,000 in 1997. The th...Birds Sing The 'Story Of Their Lives,' Theorize Duke Biologists
...oned as an information source. So, Nowickiand his colleagues began to develop their theory based on the analysi...n is on the bird's brain." Nowicki and his colleagues are now conducting laboratory experiments toconfirm their theory, in which they feed growing birds d...Pediatric Academic Societies Report Progress In Children's Health
... 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 same as a group ofbabies who were not exposed to cocaine in ...Study Shows Zebra Mussels Can Colonize Sand And Mud
... 20,000 animals per square meter. Berkman and his colleagues studied 200 kilometers of the Lake Erie floorfrom the New York-Pennsylvania border to the lake’s western basin.They determined that by 1995, zebra mussels covered about 2,000 square kilometersof the lake bed’s soft sediment. “We do kn...Cystic Fibrosis Gene Protects Against Typhoid Fever
...es ofcystic fibrosis. Last year, Dr. Pier and his colleagues reported that thenormal CFTR protein acts as a rec...s that use the CFTR entrypathway, Dr. Pier and his colleagues turned their attention to thegastrointestinal tract, since its tissues also are affected directly in...Measures To Prevent Accidental Child Poisoning
...n child resistant packaging. Both Clive Newman and colleagues from Queen's Medical Centre at the University Hospital in Nottingham and John O'Donnell et al from the Royal Hospital for Sick Children in Edinburgh conclude that the only way to ensure that all liquid medicines are supplied in child resistant contai...HIV Discriminates Amongst Cells
...ogether," Dr. Schwartz added. Dr.Hildreth and his colleagues cautioned that speculations about the role ofreceptor signaling in virus replication and the selective advantage to HIV ofentering cells with intact actin remain unproven at this time. However, theseroles are being tested. Actin, a protein ......retreatment cholesterol levels," Mac Mahon and his colleagues say in their journal report. Of the 522 p... causing harm topatients. MacMahon and his colleagues undertook the smaller study, known as theLIPID Atherosclerosis Substudy, to determine if reducing bl......l Academy of Sciences. Dr. Brenner and his colleagues used a combined genetic, biochemical andcrystallog...atedlevels of ApppA," he adds. Dr. Brenner and his colleagues then performed X-raycrystallography, which provided the structure of the Fhit-ApppA complex, theappa...Schmidt-Nielsen Autobiography Details Scientific Adventures
...ist (Island Press, 1998). While his students and colleagues might think of the distinguished, soft-spokenSchmi...that would seem impossible.For example, he and his colleagues discovered how camels go for months withoutwater by allowing their body temperatures to rise without...... of Washington( rmartin@u.washington.edu ) and his colleagues have performed experiments with high-intensityultr...those with smooth walls. Penelope Menounou and her colleagues at theUniversity of Texas ( menounou@mail.utexas.edu ) have come up with an explanation for this phe...