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Tag: "estimates" at biology news

Veterinary scientists explore poultry virus as cancer killer

...ding to the American Cancer Society (ACS). The ACS estimates there will be almost 219,000 new cases of prostate cancer reported in the United States in 2007. According to Subbiah, the use of poultry viruses as cancer therapy poses no threat to humans and several other oncolytic viruses are currently being ...

30+ AIDS vaccine clinical trials in 24 countries, research occurring on every continent

...oint United Nations Programme on HIV/AIDS (UNAIDS) estimates that 4.3 million people were newly infected with HIV last year—bringing the total number of HIV-infected individuals to 40 million people worldwide. Explosive HIV epidemics also continue in Eastern Europe and Central Asia. Throughout the world, a pre...

Paper challenges 1491 Amazonian population theories

...igh end." For example, he says 1950s population estimates were 1 million, in the 70s that estimate drifted up to 4 million; and in the 1990s drifted up to 10 million. "We've now got a polarized community," he says. At one end, he says, is Anna Roosevelt of the Field Museum in Chicago (she argues for l...

In Iran, cheetahs collared for the first time

...n Iran, the Department of Environment/CACP project estimates their remaining numbers between 60 and 100 animals...on by only the thinnest of threads. In the 1970s, estimates of the number of cheetahs in Iran ranged from 100 to 400 animals. But widespread poaching of cheeta...

Fused nasal bones helped tyrannosaurids dismember prey

...e metres in the air. And that's with conservative estimates of the creature's muscle force, says Snively. "We kept the muscle numbers down because we thought they couldn't possibly be that powerful, but Tyrrell museum colleagues showed that a T. rex's lower jaw could apply 200,000 newtons of force—that's like...

Study shows continued success for new HPV vaccine against virus responsible for cervical cancer

... to the vaccine appear to be rare. According to estimates from the Centers for Disease Control and Prevention (CDC) more than 20 million men and women in the US are infected with HPV, and more than six million new infections are reported each year, making it the most common sexually transmitted disease in t...

Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems

...f global warming. Jetz and Buckley gathered 643 estimates of lizard abundance from around the world for their survey, the first extensive global study of island densities for any animal group. Analyzing these estimates, they determined that lizards were consistently more than ten times more abundant on isla...

Scientists close in on missing carbon sink

...s captured carbon sinks, focusing in particular on estimates produced by a recent international study into glob.... The research team compared the air samples to estimates of airborne carbon dioxide concentrations generated by the computer models. The scientists found tha...

Researchers discover 'acquired' DNA key to certain bacterial infection

... Centers for Disease Control and Prevention, which estimates that 1 out of 100,000 persons may be affected. However, CDC also notes that the bacterium’s resistance to antibiotics – already a problem – may be increasing. In contrast, the incidence of lung infection in patients with chronic lung diseases and cys...

Massive herds of animals found to still exist in Southern Sudan

...tical techniques of extrapolation, they calculated estimates of how many animals there were on a landscape. T...y adviser, USAID/Sudan. Other species population estimates included 250,000 Mongalla gazelle, 160,000 tiang, 13,000 reedbuck, 8,900 buffalo and 2,800 ostrich. ...

Envisat captures first image of Sargassum from space

...te 5-years worth of MERIS data to determine global estimates of Sargassum biomass and its contribution to ocean productivity. "So far, we have found two things (Sargassum and Antarctic superblooms) that have never been seen from space before," said King. "It is really very exciting."...

Gene therapy delivery of nerve growth factors reverses erectile dysfunction in animal model

...tercourse. Because of the variability of symptoms, estimates of the incidence of ED vary but range from 15 million to 30 million affected men in the United States. ED is frequently associated with damage to the cavernous nerve that results from surgery for prostate cancer. Even if a patient receives a nerve-sp...

Blood test may help signal tumor's remission, return in throat cancer patients

...experiencing the largest spikes. (For this reason, estimates of relative risk of death were adjusted to exclude the compounding effects of smoking.) Because the production of these growth factors and cytokines is controlled by the same “master switch”—a regulator protein known as nuclear factor kappa B (NF-...

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