Gut protein found to protect against infection and intestinal breakdown
...lows into the small intestine via a duct, contains harsh acids that help the body absorb nutrients, kill certain bacteria and help keep intact the lining of the intestine, a major barrier against the infiltration of infectious microorganisms. That's no small task; if the innermost lining of the small intes......uctive North Pacific Ocean and Bering Sea. In the harsh northern climate, the islands are covered in maritime tundra and nutrient-impoverished soil. With no native mammals, vast populations of seabirds (29 species currently) use the area for nesting. However, over the last 100-150 years, the introduction ...Study suggests 'noise' in gene expression could aid bacterial pathogenicity
...rtune combinations of proteins are able to weather harsh growth conditions in a pond or even inside a human body. "This phenomenon could be relevant to bacterial 'persisters' - dormant cells that are highly resistant to antibiotics," said Collins. "Many bacterial pathogens can generate these persisters, w...For the first time: Longevity modulated without disrupting life-sustaining function
...s target genes. When environmental conditions turn harsh as a result of overcrowding and scarce nutrients, for example, DAF-2 signaling shuts down. No longer marooned outside the nucleus, DAF-16 crosses into the nucleus, and triggers all the necessary genes to help the body take care of the stressful situa...Next phase reached in definition of Mars Sample Return mission
...aving to carry out scientific operations in a very harsh environment. The obvious question then arises; why not bring Mars to the laboratory? Hence, the Mars Sample Return (MSR) mission. The MSR mission has been recognised by European and International scientists as one of the next major milestones in th...Conservation International & Disney discover new species in the 'Realm of the Yeti'
...e fact that we found so many new species in such a harsh environment, as well as documented several rare and endangered species, is good news for these two regions," said Dr. Leeanne Alonso, the lead scientist of the expedition and vice-president of CI's Rapid Assessment Program (RAP). "Local efforts by T...Ancient DNA provides clues to the evolution of social behavior
...y managed to survive for thousands of years in the harsh climate of the Argentine highlands, it has evolved a complex social structure that's unique among the more than 50 closely related tuco-tuco species. Stanford University biologist Elizabeth Hadly and her colleagues are using DNA extracted from ancien...Important gene controlling tree growth and development found
...een growth and dormancy. This is a way to adopt to harsh winter conditions when the supply of water is low and the tree might be damaged from both drought and cold. The trees have adopted to these conditions by stopping growth and forming buds at the end of summer or early fall. Decidious trees also shed t...ACS news service weekly press package - May 15, 2006
...anium films; super polymers built to withstand the harsh environment of space; and a cutting-edge technology for assembling nanorod semiconductors. Try the cool RSS feed option for this website. RSS (Really Simple Syndication or Rich Site Summary) is a wonderful feature that delivers new items posted on th...Discovery may speed forest biotechnology
... growth earlier in the summer to prepare for long, harsh winters. The genetic mechanisms that adapt trees to these conditions and control it are so strong that trees will behave about the same even if they are transplanted to warmer regions, the scientists say. For applied research, Strauss said, researche...Common carp sheds new light on surviving in extreme environments
...sh has evolved in small-to-medium sized ponds in a harsh continental-type climate in Asia where the winters are very cold and the summers are hot and steamy. "Its ability to cope with such extreme conditions of temperature, lack of oxygen and dirty, sediment-laden water makes it a particularly good subje...Natural selection in island sheep
... of heritable variation for selection to act on in harsh environments and there's a lack of selection to act on higher genetic variation during favorable conditions. These results emphasize the importance of using biologically realistic models to predict the evolution of traits in wild populations--an impo...Arctic expedition will investigate alien-like glacier
...uld be a good model for how life first begins in a harsh environment." The spring has also attracted the attention of the Canadian Space Agency and NASA, which are helping to fund the expedition, because it likely provides the best example on Earth for the conditions believed to exist on the surface of Ju...Antarctic Treaty Meeting moves to protect frozen continent from non-native species
... "In the past, Antarctica was isolated with a very harsh and cold environment, which made it very difficult for non-native species to establish. However, more and more people are travelling to the continent, most of them on ships. Evidence from other parts of the world has shown that there is a direct link...Debate continues on post-wildfire logging, forest regeneration
...ons about the survival of seedlings in the face of harsh conditions and competing vegetation; and said that some of the conclusions about future fire hazards are unsupported speculation, making interpretation for policy makers, the public and other scientists difficult. "Caution is urged when projecting fo...Species unique to tidal marshes face threats
...rica, have adaptations that suit them to life in a harsh environment in which seed abundance is low, salinity is high, and flooding is frequent. Yet they face a broad variety of threats from human-caused environmental damage, according to an assessment in the August 2006 issue of BioScience written by Russ...Trees appear to respond slower to climate change than previously thought
...icrohabitats and by adaptations of these trees to harsh climate." The DNA data help resolve an old controversy over the manner in which trees had migrated in response to past climate change, said Feng Sheng Hu, an ecologist at Illinois and corresponding author of the paper. "One view is that trees were ...Breaks in hibernation help fight bugs
...ike state as part of a unique strategy to get past harsh winters when food supplies are low and the need for energy to stay warm is high. The immune system is in sleep mode as well. "The production of antibodies, and white blood cells is stopped. Basically all cell reproduction shuts off," says Angela Lu...BGSU biologist trying to crack microscopic code
...an outer membrane--a defensive barrier against the harsh elements of their environment, whether toxins in nature or the protective antibodies of an infected host. Specific proteins interact to support this shield, and knowing how they communicate would provide a key to disabling it, Larsen says. Once com...Continuous, real-time analysis of radioactive waste achieved at PNNL
... system is adaptable to monitoring in a variety of harsh environments. Bryan notes that system components and analytical tools of the process monitor can be tailored to monitor a variety of complex mixtures such as pulp and paper processing liquids, electroplating solutions, as well as radioactive tank was...