Sentences with phrase «population studies once»

It's going to take some large population studies once there's a mildly representative population of SERP's with top ranked G + results.

Not exact matches

One should bear in mind that studies of populations show that condom use for contraceptive purposes has a failure rate of 12 \ % [6]- where «failure» means conception, which can occur only once a month, whereas HIV can be transmitted any day of the year.

New research from Harvard University actually suggests that attending «religious services» at least once a week will significantly lower your risk of dying over the next decade and a half — and these results have been replicated in enough studies and populations to be considered highly reliable.

«With the outcome of this study it would in principal be possible to improve the seismic hazard estimates for any transform fault near a population center, once its maturity can be quantified,» said Bohnhoff.

Wolf populations on the island, once numbering about 50, are at their lowest level since the study began in 1958.

Says Hákon Jónsson, PhD - student at the Centre for GeoGenetics, co-leading author of the study: «The recent near extinction of the Przewalski's horse population resulted in the persistence of deleterious mutations in the population, following the same mechanism that once led to the accumulation of deleterious mutations in the genomes of domesticated horses.

The Gulf of Maine coastline, historically home to one of the richest shellfish populations in the U.S., is undergoing a dramatic change, with once - flourishing wild blue mussels all but disappearing, according to a study led by University of California, Irvine ecologists.

A new study of how men approach their golden years found that how happy individuals are remains relatively stable for some 80 percent of the population, but perceptions of unhappiness — or dealing with «hassles» — tends to get worse once you are about 65 - 70 years old.

Once they used clusters of dates to track patterns of population growth and decline at archaeological sites in Europe, they calibrated their method by studying patterns in the types and dates of pollen found at the sites, which reflect when farmers cleared land of trees to grow crops.

Rather than safely becoming middle - class melting pots, however, the once majority - white suburbs in Kye's study appeared especially sensitive to the growth and emergence of non-white populations.

Once on their own, something nearly wiped them out entirely; the genetic data shows the population passed through a severe bottleneck, never observed in previous studies.

Once an entire population has experienced the extinction of key bacterial species, simply «eating right» may no longer be enough to restore these lost species to the guts of individuals in that population, the study suggests.

Once a quiet trading post on the fringes of the silk route, for the past ten years it has been the country's new capital and the population has exploded as people move to the city to work and study.

Steven C. Amstrup, the federal biologist who led an analysis last year concluding that the world's polar bear population could shrink two thirds by 2050 under moderate projections for retreating summer sea ice, is once again in the field along Alaska's Arctic coast, studying this year's brood of cubs, yearlings and mothers.

Once again, where are the comparative impact studies and current population figures?