Blood Test Can Identify Some Children With Strep-Related Behavioral Disorders
...his allows clinicians toconsider prevention of the abrupt appearance of OCD and tic disorders, shesaid. "If we could potentially screen children at risk when they're young, wecould watch the children who have this trait marker for rheumatic fever moreclosely and catch them right away if they begin to show...Scientists Trace Roots Of Protein That Keeps Antarctic Fish From Freezing
... has arisen out of strong selective pressureand an abrupt switch in environmental conditions adaptive molecularevolution. Demonstrations of this sort at the molecular level are rare andnoteworthy." Evolution of the antifreeze gene in the Antarctic fishes had a greatimpact on the ecology of the therma...Geologist Finds Hidden Patterns Of Diversification In Ordovician Radiation
...ovician. In contrast,diversification showed a more abrupt or spiky pattern at thelocal level. Diversificati...d Miller. "and maybe those transitions arefar more abrupt than we appreciate. But those transitions, forwhatever reasons, took place at different times in dif...Memorial Sloan-Kettering Investigators
...to 3,000 Americans each year and has an especially abrupt onset. Fiveyears ago, MSKCC investigators led by Dr. Raymond P. Warrell, Jr. showed that adrug called retinoic acid (RA) could be used to treat many patients with APL byinducing their cancer cells to mature, or differentiate, into healthy whiteblood...University Of Cincinnati Geologists Analyzes Evolutionary Impact Of Mass Extinctions
...nction has on a globalbiota." As an example of an abrupt regional change, Miller discusses the diversificationof a group oforganisms known as "biological bulldozers," which dig into deposited sedimentsto find food. Thegeologic record includes cases where the bulldozers replaced another group knownas ISOSS...Ancient 'Volcanic Winter' Tied To Rapid Genetic Divergence In Humans
... to modern human populations around the world. The abrupt "bottleneck,"or decrease, in our ancestors' populations, in turn, brought about the rapid"differentiation" - or genetic divergence - of the surviving populations. The hypothesis, offered by anthropologist Stanley Ambrose of the Universityof Illin...USGS Finds Sea Otters At Risk From Killer Whales In A Changing Ocean
... numbers in some areas by the 1970s. When a recent abrupt andunexpected decline in sea otter numbers occurred over large areas of theAleutian archipelago, the scientists, who had been studying otters there sincethe 1970s, sought to discover why. In time, they eliminated disease, toxins andstarvation -- thre......r whales are now feeding on sea otters, causing an abrupt decline in seaotter populations in western Alaska, according to researchers studying thearea's marine ecosystems. The decline in sea otters has allowed their primaryprey, sea urchins, to increase in number and strip coastal kelp forests overlarge are...Oldest Ice Core From The Tropics Recovered, New Ice Age Evidence
... glacial maximum (LGM). The abrupt beginning and end of a Younger-Dryas-type event suggest thatatmospheric processes as the probable driving mechanisms. Italso indicates that the natural climate system......climate changes of the past11,000 years caused the abrupt desertification of the Saharan and Arabia regionsmidway through that period. The resulting loss of the Sahara to agriculturalpursuits may be an important reason that civilizations were founded along thevalleys of the Nile, the Tigris, and the Euphrat...Mechanism found that appears to keep body tissues together
...emultiple interactions could retard or prevent the abrupt failure of the adhesivejunctions. "The successive rupture of these multiple contacts during protein detachmentappear to form a kind of built-in 'ratcheting' mechanism which further impedesoverall junction failure," Leckband said. "While we still hav...New research proves fullerene can be cosmic carbon carriers
...ed minerals. This sediment layer marks a period of abrupt change in Earth's biology and geology, characterized by mass extinction of the dinosaurs, now generally attributed to the impact of a carbonaceous asteroid that collided with Earth. Becker hopes to expand the research to other periods of mass extin...More than 300 regularly prescribed medicines can damage the lungs
... case is diffuse interstitial fibrosis, a serious, abrupt illness that can occur in adulthood, in which the lung "scars" and turns rubbery, for no apparent reason.This is why many epidemiologists are now scrutinizing all the medicines a patient has taken in the past in order to see whether former exposure m...October Geology and GSA Today highlights
... ago, in the late Paleocene epoch, one of the most abrupt climatic events in the geological record transformed Earth. A brief but intense interval of global warming heated up the oceans and atmosphere. The magnitude and abruptness of the event can be explained by a series of catastrophic releases of the gre...Why some people just can't seem to pay attention
...ar to the distractibility that can be caused by an abrupt noise when, for example, someone is trying to concentrate on reading." "The distraction was seen as prolonged reaction times," added Alho. "That is, slowed performance in the sound discrimination task after the to-be-discriminated sound's pitch...Pollen record from Chilean lakes indicates global "togetherness" during last ice age
...ming. Previous research by the same team showed an abrupt withdrawal of Andean piedmont glacier lobes 14,600 years ago at the same time northern ice sheets were retreating. Our results suggest that mid-latitude climate in the Southern Hemisphere changed in unison with the North Atlantic region. We are conti...Smart polymers provide size-selective switches to turn proteins on, off
...striking a small environmental change triggers an abrupt shift. It acts like a switch. Those factors could allow scientists, for example, to specifically target what they want to cull from a solution such as a blood sample. The proteins could be engineered to pull a specific molecule from the sample and...Collapse of simple life forms linked to mass extinction 200 million years ago
...e indicates the massive die-off was linked with an abrupt drop in productivity, the rate at which inorganic carbon is turned into organic carbon through processes such as photosynthesis. The waning productivity coincided with a sharp decline in radiolaria (included among protists), which was the focus of th...Beyond global warming: Where on Earth are we going?!
...g many hundreds of thousands of years tell us that abrupt changes in conditions on Earth have occurred befor...tion may be pushing the Earth into an era in which abrupt changes could occur. High population densities and over-reliance on limited resources mean that many...Scientists share multidisciplinary discoveries at 'Earth System Processes'
...most half of its history? And suddenly there's an abrupt rise at ~2 ga? This amazing picture of our Earth is finding increasing support from rock record geologic data. "But what intrigues physical and biological scientists alike is why the rise and why at ~2 ga?" remarked Janet Siefert, co-chair for this ...