Anthropologist predicts major threat to species within 50 years
...reater the diversity, he said, the more likely his estimate could be wrong because of the greater number of species still unknown to science. McKee's prediction that the United States would face 10 additional threatened species in the next half-century may seem minimal, he said, but it isn't. "The loss of an ...ESA providing Kyoto estimates of French Guianas tropical forests
...ch and ESA, at Kourou. "The final objective is to estimate afforestation, deforestation and land-use changes," stated Alain Chaudron, technical advisor for international forests affairs at the French Ministry of Agriculture, Food, Fisheries and Rural Affairs. "The project is a continuation in tropical forest...Ancient pollen yields insight into forest biodiversity
...rhaps several hundred generations of trees--we can estimate long-term growth rates," said Clark. According to Clark, the neutral model would predict that the variation among the sites would increase over time, as random chance caused different species to go extinct in some areas but not others. Some sites, ju...Protein critical for development in fruit flies found to aid healing of cuts and wounds in mammals
...he U.S. Centers for Disease Control and Prevention estimate that the number of diagnosed cases will increase 165 percent by 2050, as the number of overweight adults and children climbs in the United States. Geneticists have long been aware of the role played by "c-Jun"-a protein called a "transcription factor...Study says government counts of tigers in India are inaccurate
...ce showed protection had deteriorated. "Trying to estimate tiger numbers across India using the pugmark census is an impossible task," said the paper's lead author Dr. Ullas Karanth, a WCS conservation zoologist who has studied tigers for the past 20 years. "Money and effort spent on counting pugmarks can b...Dairy farmers protect groundwater, save money
...eed the animals.But because it hasn't been easy to estimate nitrogen and other plantnutrients in the manure, the farmers typically played it safe andsupplemented the manure with commercial fertilizer. That was expensive for the farmers, and raised the risks of excessnitrogen and salts seeping into the valley'...Scientists use DNA fragments to trace the migration of modern humans
...merican Journal of Human Genetics, the researchers estimate that the entire population of ancestral humans at ...n consisted of only about 2,000 individuals. "This estimate does not preclude the presence of other populations of Homo sapiens sapiens [modern humans] in Afric...Just how many species are there, anyway?
...are sampled. This could "at last enable ecology to estimate worldwide species diversity," say Michael Rosenzwe...h of the ecoregions (11 out of 110). The best such estimate yielded nearly all of the known butterfly species (556 out of 561). While the researchers found that...Study: Adults maintain significant improvement in ADHD with long-term use of amphetamine
...-day activities such as driving a car." Experts estimate that as many as 8 million U.S. adults have ADHD, which can lead to psychological maladjustment, as well as occupational and social impairment. Proper diagnosis and treatment of ADHD in adults can help improve self-esteem, work performance and skills,...Scientists predict swift end to vCJD epidemic
...vCJD epidemic will continue to decline with a best estimate of only 40 future cases". These are expected with...ars. The group have also come up with a meaningful estimate for the incubation time of vCJD -12.6 years. This is a similar to the incubation period of Kuru, th...No detectable risk from mercury in seafood, study shows
...of exposure to mercury for most people. Scientists estimate that about half the mercury in the Earth and its atmosphere originates from natural sources such as volcanoes, and about half comes from man-made sources. People receive most of their mercury exposure by eating ocean fish like tuna, swordfish and sh...Pregnant African American teens need more calcium for healthy fetal bone development
...d prenatal care. Using a 24-hour dietary recall to estimate the number of dairy products the girls consumed daily, the dietician ranked their calcium intake as either "adequate" (4 or more servings per day), "fair" (2-3 servings per day) or "poor" (0-1 serving per day), with each serving contributing approxim...Novel method identifies 'hidden' genes
...mputational method that provides a reliable way to estimate the total number of miRNA genes in different anima...mportant in the study of human genetics. They also estimate that miRNA genes comprise nearly one percent of the human genome, making miRNA genes one of the more...Physical activity in the elderly ruled in part by genetics
...ic determination, as described above, were used to estimate the broad-sense heritability for physical activity level during this portion of the lifespan for female mice. The broad-sense heritability with interclass coefficients ranged between 0.23 and 0.43 and the coefficient of genetic determination ranged ...In some patients with chronic fatigue syndrome, left ventricular function may be involved
...gamma camera. The emission counts are processed to estimate volumes of blood in the left ventricle (the heart's main chamber) at the end of relaxation and at the end of contraction periods. Their ratio (called the ejection fraction, or EF) is a measure of myocardial contractility, and is considered to be the ...Wild ape population undergoing 'catastrophic' decline
...ar," said Walsh. "Ours is a rigorous, quantitative estimate that I hope people will pay attention to. If you a...emphasized that the researchers did not attempt to estimate the actual number of apes that exist in the study region, which was mainly in the country of Gabon. ...Encrustation provides clues about ancient seas
...ers have even suggested that they could be used to estimate the amount of nutrients and plankton available in ancient seas." At the meeting of the Southeastern Sections of the Geological Society of America (GSA) in Memphis March 12-14, Rodland presented a comparison of the encrustation of a bivalve mollusk (...Fire frequency determines forest carbon storage
...which trees respire will help scientists to better estimate the trees' contributions to the global carbon cycle. This is especially important because of the changing climate. "Increased fire frequency, as predicted from global warming scenarios, has the potential to significantly impact the contribution borea...In vitro fertilization may be linked to bladder defects
... children during the same time period, researchers estimate the incidence of these birth defects are up to 7.3 times more common in the IVF population. The most common defect of the exstrophy-epispadias complex is bladder exstrophy, a condition in which the bladder is exposed, inside out, and protrudes throug...MIT research in Hawaii could impact state's management of fresh water
...roundwater is flowing into the ocean, you can then estimate how much fresh water is available and develop strategies for sustainable management of groundwater use," said Sheila Frankel, assistant director of MIT's Parsons Lab in the Department of Civil and Environmental Engineering. Frankel organized and led...