Prostate Cancer May Be Predicted 10 Years Before Diagnosis
...ians test for total PSA only, which, when measured repeatedly over time, can predict prostate cancer up to four ...shows that measuring the ratio offree to total PSA repeatedly over time may lead to a prediction of prostatecancer up to 10 years before clinical diagnosis of pro...Fruit Flies May Shed Light On Cocaine Addiction
... tremors, paralysis, or even died. When flies were repeatedly exposed to cocaine given at intervals, they exhibitedmore severe responses. Such sensitization, or "reverse tolerance," also occursin rodents and humans and may underlie the paranoia and pyschosis seen inlong-time cocaine addicts. It is the opposit...COGA Suggests Genetic Loci For P3 Brain Wave Abnormality
...cant from insignificant stimuli. Previous studies repeatedly found P3 voltage to be low in several clinical conditions including schizophrenia, attention deficit disorder, and alcoholism. Although, with alcoholism, researchers initially attributed low P3 voltage to the cumulative toxic effects of alcohol, Drs....First Reproducible Cloning Of Mammals From Adult Cells Reported In Nature
...lop normally. After activation, the cells divided repeatedly to reach the multi-cellstage at which an embryo is called a blastocyst. Cells in blastocysts beginto mass in preparation to form the first tissues of an embryonic mouse. "We discovered that a relatively high proportion of the oocytesdeveloped into b...Study 'Gone With The Wind' Provides Stellar Ecological Example
...ause we had been therejust days before and then we repeatedly visited the sites in the followingmonths to see how the ecosystem recovered." The investigators came back to the islands six weeks after the hurricaneand during regular intervals up to one year to census populations and observevegetation regr...How Mammals Learn To Recognise Their Mother
...een 10 and 30 days, the baby rats were required to repeatedly choosebetween wire cages containing the mother, another lactating female, alactating female of a different colour, a non-lactating female, a male rat, oran empty cage. The young rats chose other lactating females just as frequently as theiractual mot...Engineering Animation, Inc. Demonstrates Internet Anatomy At Visible Human Project Conference
...o dissection because authentic grossanatomy can be repeatedly removed, rotated and manipulated. Once you cutinto or alter a structure during a cadaver dissection, it is permanentlydestroyed," said Carol Jacobson, senior director of EAI Interactive. "Bysimply logging on to the Internet from a PC, students and ed...Mice Lacking Gene Show Reduced Alcohol Preference And Sensitivity
...so switched, to assure that the mice were notgoing repeatedly to one bottle simply out of habit. The mice lacking the D2receptor shied away from the alcohol, while the normal mice showed a preferencefor it. There were no differences between the normal mice and mice lacking D2receptors in their consumption of sa...New Hypothesis Proposed For Cause Of Chronic Fatigue Syndrome
...ell, Kiecolt-Glaser said. Earlier research has repeatedly shown that increased stress and depression can reactivate latent viruses, decrease the body’s immune response, and stimulate the production of certain cytokines linked to some CFS-like symptoms. “Part of this is a chicken-and-...Hopkins Researchers Find Genetic Colon Cancer Change In Healthy Cells
...een LOIand cancer," Feinberg says, "because we've repeatedly found LOI in cancers,notably in genes that either encourage cell growth or that suppress cancer." Earlier work by Feinberg and by others has showed, for example, that LOI appearsfrequently in Wilms' tumor, the most common non-blood cancer in children...Major New Study Shows HIV-1 Antibodies Found In Urine
... the 24 discordanturine-only reactive samples were repeatedly reactive for a particulartype of HIV antibody made mostly in the mucosal tissues, i.e.Immunoglobulin A antibody, also called IgA. The mucosal tissues arethe protective linings in the body's many cavities, including theurogenital tract. The antibody w...New Clues To Evolution Of Human Brain
...performance. Functional MRI, however, can be used repeatedly on human subjects withoutcausing harm or relying on invasive procedures. Plus, the resolution is so goodthat scientists like Courtney can observe changes in the brain every fewseconds, allowing them to chart neural activity nearly in real time. For C...Largest Acoustics Meeting In History Expected
...mes A. TenCate of Los Alamos ( tencate@lanl.gov ), repeatedly expanding and compressing sandstone rock with high-magnitude strain forces can "condition" the rock to respond with less stiffness to the applied forces after a few minutes, so that it behaves like a softer spring. Intriguingly, the rock remains sof...Model Polymers Reveal New Clues to Protein Folding
...the Cray T3E computer at NERSC, Rokhsar and Pande repeatedly unfolded themodel by raising its (simulated) temperature, then lowered the temperature andwatched it refold itself. For each folding sequence they separately tracked theposition of each of the 48 "mers," the units equivalent to a protein's aminoacid ...Autoimmune Diseases May Be Triggered By Cells From Your Mother
...mune diseases are more common in women, who may be repeatedly exposed totheir fetuses' cells while pregnant. Two years ago, researchers in Boston made the surprising discovery thatfetal cells can survive in a woman for as long as 27 years after her lastpregnancy. Since then, other studies have shown tha...Male Moth's Sperm Protects Females
... the moth escapes unharmed. TheCornell biologists repeatedly tested moths on wolf spiders and orb-weavingspiders. Every moth with PAs survived its close encounter with the spiders, while mothswithout the defensive chemical in their bodies were killed or eaten. That isbecause they were raised on a laboratory...USGS assesses nation's biological resources at century end
...s on biological resources. Some land use changes repeatedly cited as major forces affecting biologicalresources are urbanization, conversion of lands to agriculture, draining ofwetlands and the fragmentation of forests. Changes in the nation's waterways to accommodate navigation, irrigation,hydroelectric powe......lutants. All of these require a tiny pump that can repeatedly and reliablypush small amounts of liquid through narrow channels for rapid analysis. To accomplish this, engineers at The Johns Hopkins University have invented amicropump powered by the repeated growth and collapse of a single bubble.Because the bub...Hepatitis C's interferon resistance mechanism discovered
...lack of protective immunity in individuals exposed repeatedly to the virus,"said Robert Purcell, an HCV researcher at the National Institutes of Health.Fortunately, the region of E2 that bears resemblance to PKR is a relativelyinvariable sequence, said Lai. Lai believes that this extensive genetic diversity, b......iety, the world's largest scientificsociety. When repeatedly machine dried at high temperatures, cotton fabricseventually tear more easily than those tumble-dried at room temperature,drip-dried indoors or dried outdoors by sunlight, the study concludes. "While cotton can be dried at the relatively high tempera...