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Tag: "estimating" at biology news

Small species back-up giant marsupial climate change extinction claim

...tion of species, it might have predictive value in estimating the effects of possible future climate changes and its impacts on modern species." Megafauna roamed the globe in the Pleistocene epoch, between 1.8 million and 10,000 years ago. In the northern hemisphere species such as the woolly mammoth and sabr...

Diabetic nerve therapy shows 'striking' results

...g dramatically, with the World Health Organisation estimating that some 300 million people worldwide could be affected by 2025. The causes of diabetic neuropathy are not fully understood but researchers investigating the effect of glucose on nerves believe it is likely to be a combination of factors. Sangamo'...

Vietnam war technology could aid elephant conservation

...proved by more accurate methods for monitoring and estimating the size of elephant populations or other large mammals in central Africa, as these populations are relatively small and threatened by poaching," Wood says. The team will now work on improving the system by using an array of geophones which will all...

Space matters: Estimating species diversity in the fossil record

...rea effect, or to even know whether it applies, in estimating paleodiversity because of various confounding factors. But, in a new study, published in the premier open access journal PLoS Biology, Anthony Barnosky, Marc Carrasco, and Edward Davis are able to test this assumption and discover that the golden rul...

Neanderthal teeth grew no faster than comparable modern humans'

...f tooth growth has become a more-accepted tool for estimating the length of childhood among hominids, the finding is the latest evidence suggesting that Neanderthals may not have been as different from modern humans as some researchers have thought. The study by Debbie Guatelli-Steinberg, assistant professor ...

NASA satellite data provides rapid analysis of Amazon deforestation

...While high resolution imagery is still needed when estimating the total area of deforestation or when identifying small clearings, "the most exciting finding of this study is that it shows MODIS can permit regional analyses of land cover in a matter of days, a substantial reduction in effort in comparison to th...

Genetic link confirmed between Polynesians and indigenous Taiwanese

...lynesians and other Southeast Asian populations by estimating how much mtDNA different populations have in common. Early results were conflicting or inconclusive; however, the research by Trejaut et al. has finally nailed this down. Trejaut et al. analyzed mtDNA from people in China, Southeast Asia, Polynesia, ...

High-Throughput GoMiner

...lynesians and other Southeast Asian populations by estimating how much mtDNA different populations have in common. Early results were conflicting or inconclusive; however, the research by Trejaut et al. has finally nailed this down. Trejaut et al. analyzed mtDNA from people in China, Southeast Asia, Polynesia, ...

Scientists narrow the time limits for the human and chimpanzee split

...as taken into account all of the error involved in estimating time with the molecular-clock method," said Sudhir Kumar, lead author on the report, which was published early online in the journal, Proceedings of the National Academy of Sciences. The team describes its new statistical technique as a "multifactor...

Skin disease common among Hispanic farmworkers in North Carolina, research shows

... were examined by a dermatologist with the goal of estimating the prevalence and predictors of skin disease. The results are reported in the May issue of the Journal of Agricultural Safety and Health. A second study, which involved in-depth interviews with 30 farmworkers from across the state, was designed to ...

Mobile phone use not linked to increased risk of glioma brain tumours

...s) quite small. This study had limited numbers for estimating the risk of using a phone over a long period. Early mobile phones were designed to use analogue signals and emitted higher power than current digital phones but the study showed no increased risk of glioma brain tumours with the use of analogue phon...

Trial success for diabetic nerve therapy

...ng dramatically with the World Health Organisation estimating that some 300 million people worldwide could be affected by 2025. The causes of diabetic neuropathy are not fully understood but researchers investigating the effect of glucose on nerves believe it is likely to be a combination of factors. ...

What's nature worth? New computer models tell all

...t, these models will be informed by new methods of estimating the value of ecosystems. Conventional economics has relied on the rather clunky notion of "willingness to pay" to determine how much a product is worth. This approach doesn't apply well to many ecosystem services that are either indispensable--like a...

'Mindless autopilot' drives people to underestimate food decisions

... upcoming dessert. You'll also be more accurate at estimating the number of calories you consumed. Sit next to the slowest eater at the table: Use that person as a benchmark as to how slow you should eat. Always be the last one to start eating, and set your fork down after every bite. Embrace your comfo...

To slow AIDS in Russia, treat HIV-positive addicts, Stanford study says

... be to treat HIV-infected drug users. A new model estimating the spread of HIV in Russia suggests that treating injection drug users with antiretroviral medication will slow transmission of the virus among the general population. The study, which will appear in the December issue of the journal AIDS, was ...

Sequencing of the oyster mushroom genome

...tal genome, a small part but a significant one for estimating the general parameters of the genome such as how many genes there are or how they are organised. The complete genome for the oyster mushroom has 70 million "letters" or bases, distributed throughout two equivalent copies, given that this fungus has...

Biologists call for better choice of model organisms in 'evo-devo'

...cestor, because this information can be helpful in estimating how much an organism’s phenotype has changed." Dr Wills added: "Establishing criteria for choosing model organisms is important in this field, especially given the pressure on available funding sources. "We encourage evo-devo workers to commun...

Satellites shed light on global warming

...observed at Larsen Ice Shelf are very relevant for estimating the future response to climatic warming of the much larger ice masses of West Antarctica, which contain freshwater equivalent to several metres of sea-level rise," Rott added. Satellites have been extremely beneficial to scientists in understandi...

How to look at dinosaur tracks

... during dry season or wet season. For example, estimating foot length from tracks can be inaccurate without these considerations ?the more erosion that has occurred, the larger the apparent dimensions of the track. Applications of this apparently larger foot size derived from an undertrack may lead to calcu...

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