Identification of the first gene in posttraumatic stress disorder
...ptake of dopamine released into the synaptic cleft limits the extent and duration of dopamine receptor activation. Researchers found a common mutation in the DAT gene to show an increased frequency among trauma survivors who developed chronic PTSD, and add a small significant contribution to the risk for ...Treating precancerous breast cells may prevent onset of cancer
...ls with chemopreventive agents, such as tamoxifen, limits the development of breast cancer in genetically predisposed women, according to a study presented at the American Association for Cancer Research's (AACR) annual Frontiers in Cancer Prevention meeting. Precancerous breast cells may also provide an e...Oregon power companies offset carbon through investment in Ecuadors rainforest
...r patterns resulting from climate change. The law limits the net amount of carbon dioxide that a new power plant can release. One way new plants can meet these standards is by investing in carbon offsets projects through The Climate Trust, a nonprofit organization formed in 1997 in response to the Oregon...Biodiversity hotspots, centres of endemicity, and the conservation of coral reefs
...are just as common on low-diversity reefs near the limits of reef growth. These new finding have critical implications for conservation of coral reefs. The authors recommend a two-pronged approach, where both high and low biodiversity regions are targeted for conservation....$3.2 million project to document dioxin levels in Houston ship channel
...contaminants might be." Rifai says the regulatory limits for acceptable dioxin concentrations are extremely small, and until recently the technology did not exist to detect such minute quantities in water. "Because of the lack of sampling technologies, we don't actually know what the dioxin concentrations ...Scientists discover ancient protein and DNA sequences in the same fossil
... is somewhat imprecise because they are beyond the limits of radiocarbon dating. The Siberian fossil ultimately revealed both mitochondrial DNA and a complete sequence of osteocalcin, a protein found in all bones that is involved in bone formation. The researchers demonstrate, using immunological data, th...Warming study indicates water problems in the West
...tive "Water may be the resource that defines the limits of sustainable development," states a 2001 United Nations Population Fund report, which noted that water use has grown six-fold over the past 70 years. Nowhere is that more true than in the western United States, where existing water resources alread...Acoustic technique could disinfect medical instruments without heat or harsh chemicals
...a liquid depends on the surface area, there may be limits to the volume that can be treated by inducing energy from the boundaries. They also need new power electronics and transducers that can operate continuously. Beyond sterilization of medical instruments, Cunefare also sees potential applications in t...Observing proteins and cells in the wild
...ed to trigger the first dye. Such spectral overlap limits the use of fluorophores to two, sometimes three, i...ent-colored dots. Thus, spectral overlap no longer limits the number of colors that can be used at once in an experiment. In addition, quantum dots do not sto...Biologists raising baby loggerhead turtles for conservation find disturbing gender trend
...t annually, Crowder said. From Jacksonville to the limits of their northern range in North Carolina, however, female loggerhead inventories are still decreasing by up to 3 percent annually. Scientists are paying special attention to the northern subpopulation of loggerhead hatchlings because it was though...A new study sheds light on how the tongue restores its ability to taste following surgery
...is restricted to fusiform cells located within the limits of the taste bud, and the immunopositive cells are thought to represent mature, functional taste receptor cells. Results The findings demonstrate that two distinct functional "sensitive periods" exist for the regenerated nerve. This research reve...Effects of global warming already being felt on plants and animals worldwide
...g we might do now is to consider adjusting the bag limits for hunters so we don't add insult to injury in the coming years. Because anticipation of changes improves our capacity to manage, it behooves us to increase our understanding about the responses of plants and animals to a changing climate." Other co...Finding life away from Earth will be tough task, says noted paleontologist
...somewhere else, could be so tiny that it is at the limits of or beyond current capabilities in optic microscopic resolution. Those life forms might have existed without hard bodies, so fossil evidence would be exceedingly difficult to find and might consist only of poorly preserved organic polymers. He no...Researchers tie worldwide biodiversity threats to growth in households
...prevalent, the authors believe there may be severe limits on efforts to conserve species, thus "degrading the ecosystem services that biodiversity delivers to humanity." In the past, the business community took most of the heat for many environmental problems, Liu explains. "While there is still a need to ...Monkeys show sophisticated learning abilities
...s. The scientists said they have not yet found the limits of the monkeys' learning capacity. The researcher...ates that the researchers have not yet reached the limits of the animals' abilities, said Brannon. "It was only an initial guess on our part that seven-item ...Animal study demonstrates carbon monoxide may help heart patients
...sulting in angina (chest pain) that often severely limits their activities and puts them at risk for heart attacks, the leading cause of mortality in the United States. "The findings reported in this study suggest that [prophylactic use of ] carbon monoxide may prove to be useful during angioplasty or heart...More people are getting sick from eating fresh fruits
... the sporadic nature of most contamination further limits the effectiveness of testing. "Plant disease scientists know a lot about how other microorganisms interact with plants and the environment to create an outbreak," says Buck. "This same knowledge can be applied to human pathogens as well. An exchange......ral environment by the wavelength of light, which limits the smallest volume of a sample that can be observed. This, in turn, limits the lowest number of molecules that can be observed in the microscope's focal spot to more than 1,00...Researchers discover that DNA packaging in living cells is dynamic
...ought. This packaging is one way in which the cell limits which genes are turned on, 'locking-in' different patterns of gene expression in different cell types. Dr Richard Festenstein from Imperial College London and the MRC Clinical Sciences Centre, at the Hammersmith Hospital comments: "Although this res...NPF says FDA approval of new psoriasis drug signals new era of care
...me also have the potential for side effects, which limits their use. According to a recent survey conducted by the Psoriasis Foundation, 75 percent of people with moderate to severe psoriasis said that their psoriasis is a large problem in their life. Seventy-eight percent of those surveyed say they don't u...