estimates 2 6

Tag: "estimates" at biology news

Good times ahead for dinosaur hunters, according to U of Penn scientist's dinosaur census

...s a finite limit to what can be discovered, so our estimates show that the child's grandchildren won't be so fo...slice of time before the extinction event." Their estimates for total dinosaur diversity take into account the number of dinosaurs already found, the rate of di...

New study finds chocolate chip cookies lower cholesterol

...ith cholesterol. The American Heart Association estimates at least 50 percent of the American adult population has high cholesterol. The study revealed eating two Right Direction Cookies daily showed a ten percent decrease in LDL cholesterol as well as shifting the LDL particles toward a less atherogenic pa...

Ongoing collapse of coral reef shark populations

...que combination of fisheries-independent abundance estimates and measurements of the survival and reproduction of individual sharks. Their findings show that reef shark abundance on reefs open to fishing are about ten times lower than on unfished reefs. Moreover, high reef shark abundance was only apparent on ...

Triple threat: World fin trade may harvest up to 73 million sharks per year

... study of sharks harvested for their valuable fins estimates as few as 26 million and as many as 73 million sharks are killed each year worldwide--three times higher than was reported originally by the United Nations, according to a paper published as the cover story in the October 2006 edition of Ecology Lett...

HIV dementia alarmingly high in Africa

...a patients in other parts of the world --- current estimates of the number of HIV-positive patients who have dementia range from 9 percent to 54 percent. ...

Fruit flies and global warming -- Some like it hot

...osed to different heat hardening treatments to get estimates of a fitness component in the wild. They used the likelihood to be caught at baits in field sites without natural resources as an estimate of fitness in Drosophila. The results showed that heat treated flies were much more often caught at the baits a...

Hay fever can send work productivity down the drain

...tion the associated economic costs,?she said. Some estimates suggest that nearly 4 million days of missed work each year due to allergy symptoms. Hay fever symptoms can disrupt all areas of life, and study participants cited a lack of sleep and a negative impact on their overall health as the two main reaso...

Salamanders suffer delayed effects of common herbicide

...als within and between species that can affect our estimates of safe chemical concentrations." Atrazine is one of the most widely used pesticides in the United States, and possibly the world. It is relatively long-lived and is even found at the poles. According to the U.S Environmental Protection Agency, i...

Quitting smoking reduces risk of lung cancer mortality by 70 percent

... It aims to produce region-, age- and sex-specific estimates of the cardiovascular disease risks associated with blood pressure, smoking, cholesterol, diabetes and other major risk factors. ...

Antivirals effectively curb influenza virus

...rs stress that the numbers were small and combined estimates from two studies for each drug were used in both instances. Furthermore, oseltamivir treatment of ill persons did not appear to reduce the frequency of influenza infection in their contacts. In exploring the reasons for oseltamivir's greater effec...

Ethanol vehicles pose a significant risk to human health, study finds

...l Protection Agency. The World Health Organization estimates that 800,000 people die each year from ozone and other chemicals in smog. ''In our study, E85 increased ozone-related mortalities in the United States by about 200 deaths per year compared to gasoline, with about 120 of those deaths occurring in L...

Procedure predicts embryos most likely to result in pregnancy

... McGill University have developed a procedure that estimates the reproductive potential of individual embryos, possibly leading to a decrease in multiple-infant births and a higher success rate in women undergoing IVF. Over 100,000 in-vitro fertilization procedures are performed each year in the United States...

Global 'sunscreen' has likely thinned, report NASA scientists

...ls in the lower atmosphere, a unique set of global estimates funded by NASA. Scientists at GISS created the Glo... natural and some produced by humans. While global estimates of total aerosols are improving and being extended with new observations by NASA's latest generation...

Large size crucial for Amazon forest reserves

... and colonization of species. The species-specific estimates of effects of area and isolation on extinction and colonization processes permit prediction of effects of future fragmentation on bird communities in these Amazon landscapes. Area is important because the forest is spatially diverse. "What might l...

Smoking ban dramatically reduces air pollution in Irish pubs

...pean countries were to adopt a similar policy, she estimates that between 5 to 10 million premature deaths from smoking could be prevented over the next generation. Although Dr. Godfrey admits that the impact of the Irish ban has been "enormous," she also highlights several "important caveat[s]" to the stu...

UW launches study testing adult stem cells for heart damage repair

...he heart muscle. The American Heart Association estimates that every year, between 125,000 and 250,000 individuals with coronary artery disease develop chronic myocardial ischemia (CMI), one of the most severe forms of coronary artery disease, which can cause unstable angina, heart attacks and progressive h...

Are one-third of costly implanted heart devices unnecessary? New study suggests yes

...ents who were eligible for ICD therapy, leading to estimates that 50,000 new patients each year can qualify for the devices based on criteria relating to their heart rhythm and pumping capability. But if every Medicare participant who qualified for an ICD under current guidelines received one, it would cost th...

ConocoPhillips establishes $22.5M biofuels research program at Iowa State

...of specific projects have yet to be determined. He estimates the research program will involve 10 faculty members plus graduate students in the first year with additional researchers added in subsequent years. He noted that ConocoPhillips turned to Iowa State as a research partner, in part, because of Iowa Sta...

Study calculates patient time costs associated with cancer care

...roximately $2.3 billion," the authors write. These estimates could be combined with estimates of direct and indirect costs to better understand the overall burden of cancer in the United States,...

It's OK for men with high blood pressure to have a drink or two, new study finds

...rial writers say, "we cannot assume that corrected estimates of diet-disease associations in any single study are definitive." ...

1 2 3 4 5 6 7