Ancient oceans experienced a global surge in biological productivity
...ier. As the wind tries to move along, it hits the barrier and flows up. Wind that crosses oceans carries a lot of moisture with it, and when it goes up it cools off, it dries out, and it dumps its moisture." The resulting rainfall flushes soils and nutrients into rivers, which empty into oceans. But risi......ents that allow Listeria to cross the intestinal barrier have remained a mystery--until now. In previous studies, Cossart and her colleagues--including Jean Louis Gaillard, Jerme Mengaud and Marc Lecuit--had shown that a protein on Listeria's surface called "internalin" interacts with a receptor, E-cadhe...July media highlights: GEOLOGY and GSA TODAY
...ely low elevation of many of the heavily developed barrier islands on the New Jersey coast, the next intense hurricane strike will likely result in extreme damage to property. Due to a lack of public awareness, insufficient time to warn the population, and inadequate evacuation routes, significant loss of l...Blood vessels found to signal chain of destruction in bone diseases
...ch more in the body than simply provide a physical barrier and a route to passively deliver nutrients and cells. Our findings show that blood vessels can play a key role in actively regulating bone remodeling and physiology." According to Osdoby, the discovery opens up several options to eliminate or ...'Gene pill' patent extended to include all proteins secreted into blood
...the scientific advisory board for Genteric. "That barrier has been overcome. We have shown that proteins from genes administered orally are secreted into the blood stream." The UCSF researchers demonstrated that orally administered genes induce the secretion of proteins through a series of studies involving...UCSF study finds two old drugs may help fight prion diseases
...ul, says Korth, because it crosses the blood-brain barrier more readily and therefore could provide a higher ... of drugs that were known to cross the blood-brain barrier to the brain, and then tested their ability to inhibit prion formation in the cultured mouse neurobl...The skin's acid coating: SFVAMC researchers explain its origin and how it maintains skin integrity
...ng the skin's surface acidity, we can optimize its barrier function and promote improvements in skin health," he said....URI scientist receives research award from National Park Service
...arch, an essential component in protecting coastal barrier national seashores, includes restoring salt marshes and small estuaries, monitoring changes in coastal ecosystem structure, function and process, evaluating relationships between sea level rise and salt marsh habitat structure, and evaluating freshwa...New technology treats dairy wastes, odors
...adjustable horizontal and vertical planes around a barrier dividing the lagoon. "In dairy applications, the technology replicates fixed site municipal wastewater biological treatment technologies, used at more than 400 community waste treatment plants across the United States and Canada, said Jaksch. The D...Cell-cell communication in the flower is unlocked
...er the genes that control the self-incompatibility barrier could be a boon to breeders. Even self-fertilizing crops like tomatoes and rice can benefit from increased genetic variability."...Censoring self-specific B cells
...ma cells are rare in healthy subjects, there is no barrier to their differentiation in culture. Interestingly, individuals with SLE possess such cells, suggesting that some normal protective mechanisms that suppress self-reactive B cells are missing in this autoimmune condition. Since VH4-34-containing ant......"These results indicate that there is no intrinsic barrier to the genetic engineering of spermatogonial stem cells using retroviruses, and that once inserted, the foreign genes will continue to be transmitted and expressed from one generation to the next," said Brinster, the Richard King Mellon Professor of ...New resources to assist with gene transfer clinical studies
...ilability of clinical quality vector constituted a barrier to progress in the field of gene transfer. NCRR established a NGVL network in 1995 to help clinical researchers obtain adequate quantities of clinical-grade vectors. With today's announcement, the NGVLs will have not only the capability to produce an...Past fire regime is key to managing chaparral fires in southern California
...small fires that formed a landscape patchwork as a barrier to large, catastrophic crown fires. They questioned the earlier claim that destructive wildfires in southern California shrublands are a result of unnaturally high fuel accumulation from past efforts to suppress fires, and they presented arguments su......as each test is run. "We found that light can be a barrier to carp movement, and it has the potential to be a barrier to them moving into wetlands," said Ms Ide. So does sound. Through an underwater speaker the researc...Giant icebergs, unprecedented ice conditions threaten Antarctic penguin colonies
... to a point northeast of McMurdo Sound, creating a barrier that altered wind and current patterns. Early this season, the sea ice extended roughly 128 kilometers (80 miles) north of McMurdo Station, the main U.S. research station in Antarctica, located on Ross Island. At this time of year, the ice edge typ...'Sperm and germ'-fighting contraceptive enters trials
... a diaphragm because it places a discrete physical barrier over the cervix, significantly enhancing the protective actions of contraceptive microbicides. Moench, formerly an assistant professor of infectious diseases at the Johns Hopkins Medical Institutions, originally created BufferGel with Cone. Hopkins a...Adding vitamin C to certain drugs may help treat Alzheimers, other brain disorders
... allowed improved penetration into the blood brain barrier for some drugs, according to researchers. Research...s to predict drug transport across the blood brain barrier in humans, they say. Adding a vitamin C component to each of these three compounds significantly imp...Another transmembrane protein structure solved by Rockefeller scientists
...hannel's hourglass shape helps overcome the energy barrier between the outside of a cell and its internal environment, report MacKinnon and colleagues. "Being charged, ions would rather be in water than in an oily membrane," says MacKinnon. "Nature has to have a mechanism to get the ion across the cell memb...Recovery from spinal cord injury seen in mice when scarring is minimized
...s found in their experiments. Without the physical barrier of scar tissue to impede their progress, neurons o... response to injury, but it represents an absolute barrier for the axonal growth cones of neurons that might otherwise bridge the injury site....