Duke Geologists Explore Alternative Way To Measure Ice Age Sea Bottom Temperatures
...ecipitates as snow or ice. Since foraminifera also reside in seawater, and preserve an isotopic record of its composition, those that lived during glacial times should have higher ratios of oxygen 18 than those that didn't. Foraminifera shells also take up more of one or the other isotope depending on the w......2 percent of the 50,000 to 100,000genes thought to reside in the human genome. "That's an enormous number devotedto a single sensory activity," Professor Firestein said. "We'd like to know whyolfaction is so important that a hundredth of the entire genome is devoted toit." Nerve cells in the epit...Insights Into The Proteasome - A Fascinating Macromolecular Machine For Protein Degradation
...tic action from the environment. Many proteases reside within spezialized membrane-surrounded organelles, such as lysosomes. Another mechanism of control, which offers greater logistic flexibility, is self- or autocompartmentalization: proteolytic subunits self-associate into barrel-shaped ...Blindness Linked To The Cytoskeleton?
...A in a considerable number: about 60,000 copies reside in the human genome. In this particular case, it seemed that the insertion process had disrupted the function of the RP2 gene. Simple sequence determination around the integration site failed to give a hint for a disrupted gene; a...Gritty Research Leads Scientists To Metal-Loving Discovery
...omb appearance. The chemically tailoredmonolayers reside within the pores, with the molecules strongly binding at one end to the ceramicmaterial. The free ends of the tethered molecules then are available for binding to a targeted metalspecies passing through the pore. "Although difficult to imagine, the......exposure,effects, and trends for land animals that reside in estuarine regions in thenortheastern United States. ("Identification of Contaminant Trends and Data Gapsfor Terrestrial Vertebrates Residing in Northeastern Estuaries of the UnitedStates," by Barnett A. Rattner, USGS, Laurel, Md.) As the nation's ...North America Absorbing Carbon Dioxide At Surprisingly High Rate, Team Reports
...ming earlier studies. "We know that we who reside in the United States emit about 6.2 billiontons of carbon dioxide into the atmosphere each year," said Taro Takahashi,Doherty Senior Research Scientist, associate director of Lamont-Doherty,Columbia's earth sciences campus in Palisades, N.Y., and an ...Molecular Mission Unveils New Genetic Link To Common Birth Defect
...ts generally assume that a gene's control elements reside near the geneitself, usually within a few hundred ...e in tissuessuch as the genitourinary system--must reside hundreds of thousands of basepairs away from the gene itself. Notwithstanding the power of the new m...Adult Cells Undergo Identity Switch Reported In Science
...of mice whose hematopoieticstem cells (these cells reside primarily in the bone marrow where they producethe different varieties of blood cells) had been destroyed by a near-lethal doseof radiation. Once in the blood stream, the NSCs seeded the mice's bone marrow(and the spleen, another site of blood produc...Human Neural Stem Cells Advance Distant Prospect Of Reseeding Damaged Brain
... those thathematologists have known for decades to reside in the bone marrow. The bonemarrow stem cell can renew itself and give rise to all the circulating blood andimmune cells. It can even repopulate an immune system wiped out by irradiationin a bone marrow transplant. In principle, researchers ......nerally infects the immune system's T-cells, which reside in the blood,latching first onto the CD4 receptor and then onto the CCR5 co-receptor locatedon the same cell's surface. The multi-step binding process culminates withHIV's fusion with the cell. However, the virus also migrates from the blood into t...Vitamin D Deficiency May Increase Risk Of Hip Fracture In Older Women
.... A group of 98 postmenopausal women who normally reside intheir own homes were chosen for the study. Women with bone deterioration fromother causes were excluded from the study. There were 30 women with hip fractures caused by osteoporosis and 68hospitalized for elective joint replacement. Of these 68...USGS scientist receives award for brucellosis research in Greater Yellowstone Area
...ington State Universities. He and his family reside in Bozeman, Montana....Learning how organs tell left from right
... throughout the body. The heartand spleen normally reside on the left side and the liver and gallbladder are onthe right. Furthermore, the organs themselves are asymmetrical. Understanding how genes control the shape and spatial orientation of organsis one of the goals of developmental biologists. In the m...Rett Syndrome traced to defective gene 'silencer'
...ed by theX and Y chromosomes, then the defect must reside in a gene carried on the Xchromosome. Furthermore, Zoghbi reasoned that the gene was both dominant (onemutant copy of the gene would trigger the disease) and lethal. Such properties would explain why only girls develop RTT. A female fetuscould surv...Prescription for your heart: Relax
...eared from the blood after a meal. The longer fats reside in the body, the greater the risk ofcardiovascular consequences."...Peering at a machine that pries DNA apart
...f this family from different species turned out to reside nearthe surface of the donut's hole, where one DNA single strand passes through.More importantly, though, the structure gives the researchers a first stab atsolving the mechanism of how this motor generates motion from energy, like anyengine does. S...Hominoid genes meet on middle ground
... unearthed copies of genes whose original versions reside in distant regions of the genome. Now Eichler and colleagues propose a novel mechanism for these duplication events, involving a unique, repeated DNA element (CAGGG) discovered in the pericentromeric region. Using fluorescent probes, they imaged the...New Cosumnes River research partnership announced
...es, and geese, ducks, warblers and sandhill cranes reside in the floodplain forests, marshes and farm fields. In riverside forests, beavers harvest branches from tall cottonwood trees and scrub jays gather acorns from rare old groves of valley oaks. The river and its surrounding floodplains support dozens o......es of Polish descent, a substantial number of whom reside in North America....