Scientists find genetic basis of insect's resistance to engineered crops
...heir fields with non-modified cotton to ensure the dominant genes of susceptible moths remain common in moth populations. While resistant budworm moth strains have not yet caused damage in the field, previous research by Gould and his colleagues established that 1.5 of every 1,000 moths carry one of the gene...To suppress or not to suppress: Questioning the ponderosa pine model of forest fire management
...n contemporary times. Presenters will explore the dominant role that weather may play in fires throughout this region, and also will demonstrate how shifting human demographics have placed increasing demands on fire suppression efforts in California. Three other speakers will present data on fire history i...Researchers find enzyme crucial to preservation of memories
...t allowed them to replace the normal CaMKIV with a dominant negative mutant enzyme that would be produced only in the forebrains of the mice. Dominant negative enzymes have all of the characteristics of the functioning enzyme -- such as an ability to bind normally to other molecules -- but they lack the abili...Prescribed burning may threaten ground nesting birds
...in eastern U.S. deciduous forests have shifted the dominant tree from fire-tolerant oaks to fire-intolerant species such as red maples. Experimental prescribed burns are being assessed to see how well they restore and maintain oak-dominated forests. Biologists are particularly concerned about the effects on t...Researchers find gene for rare disorder that paralyzes children's legs
... the team looked at families who had the autosomal dominant form of the disease - the kind that can be passed ...ests they might be at risk of passing an autosomal dominant form of HSP on to their children. For example, in autosomal dominant HSP families, there is a 50 per...Phase 3 psoriatic arthritis data for ENBREL (etanercept) announced at a national scientific meeting
...apy for RA. ENBREL acts by binding TNF, one of the dominant cytokines or regulatory proteins that play an important role in both normal immune function and the cascade of reactions that cause the inflammatory process of RA and psoriatic arthritis. ENBREL competitively inhibits binding of TNF molecules to the ...New Phase 2 study shows ankylosing spondylitis patients respond to ENBREL (etanercept)
...apy for RA. ENBREL acts by binding TNF, one of the dominant cytokines or regulatory proteins that play an important role in both normal immune function and the cascade of reactions that cause the inflammatory process of RA and psoriatic arthritis. ENBREL competitively inhibits binding of TNF molecules to the ...Influence of gender on upper airway structure and function during obstructive sleep apnea
...l wall structures and properties -- are the likely dominant factor to explain within-breath changes in patency...with women. Second, neuromuscular factors are the dominant factors when the upper airway is challenged and these factors are not different between men and wome...December Media Mighlights: GEOLOGY and GSA TODAY
...roders on the Devonian western Canadian shelf. The dominant bioclasts identifiable after the alteration process are sea lily fragments (crinoids), and it is likely that the broad Palliser platform was characterized by meadows of these filter feeders. The authors conclude that the effects of these destructive ......gree with previous conclusions that predation is a dominant source of mortality in the Georges Bank fish commu..., but have been replaced by sharks and rays as the dominant fish eaters in more recent years. The predator diet composition shifted to herring and mackerel as t......and San Miguel. The cat-sized island fox, once the dominant predator in the ecosystem, is rapidly disappearing. Meanwhile, skunk populations are booming due to reduced competition from foxes. "The presence of exotic pigs has totally restructured the food web on Santa Cruz Island," said Josh Donlan, science di...Control of fat cell development demonstrated using Sangamo BioSciences' ZFP technology
...." Zinc finger DNA-binding proteins (ZFPs) are the dominant class of naturally occurring transcription factors in organisms from yeast to humans. Transcription factors, which are found in the nucleus of every cell, bind to DNA to regulate gene expression. The "designer transcription factors" made from ZFPs a...Hammering cancer cell survivin
...inhibited in a wide variety of tumor cells using a dominant negative form of the protein. Survivin is expresse...ing that inhibition of survivin using antisense or dominant negative transgenes helps eliminate established lymphomas and prevent the emergence of new tumors in...Study links El Nio to deadly South American disease
.... The data lead us to believe that El Nio was the dominant factor in the epidemic." Since indications of El Nio can be seen by satellites months before it affects the sand fly breeding season in South America, the scientists believe they can serve as an advance warning of an approaching epidemic year. But fu...South American forests offer glimpse of U.S. ecosystems before industrial revolution
...tively as inorganic nitrogen, have always been the dominant nutrient in forests worldwide. The study of South American forests, however, showed a sharply different picture: complex, organic compounds are the main form of nitrogen in unpolluted ecosystems. The study, published in the Jan. 24 issue of Nature, c...US ecology dramatically altered by fertilizers and acid rain
...tively as inorganic nitrogen, have always been the dominant nutrient in forests worldwide. The study of South American forests, however, showed a sharply different picture: complex, organic compounds are the main form of nitrogen in unpolluted ecosystems. "We traveled in time by traveling to South America," ......ind of mutation that's in this gene is a so-called dominant mutation, so you only need to mutate one of the chromosomes to get a big change in body plan." The discovery of this general mechanism for producing major leaps in evolutionary change has other implications for scientists. It may provide biologists w...Mating molds provide new insights into speciation and human reproduction
...hen crossed in the laboratory. Yet, by including a dominant mutant gene called Sad-1 in the DNA of the three mold species, Shiu and his colleagues were able to produce viable spores through cross-breeding of species that normally are sterile with one another. The ability of Sad-1 to breach interspecies sexual...February media highlights - GSA Bulletin
...rine bioprovinces differed dramatically in type of dominant shellfish. This is consistent with recent paleogeographic reconstructions that suggest a lack of a direct marine connection between the Paratethys and Boreal Province in the Middle Miocene. The study shows also that the value of the biological inform...Alaskan waters growing hospitable to sharks while seals and sea lions decline
...er the Pacific Decadal Oscillation is the far more dominant effect. The Pacific Decadal Oscillation is a regional climate shift that changes the temperature of surface waters in the central and north Pacific. It takes 20 to 30 years to shift between cold and warm phases, and the Pacific Decadal Oscillation ha...