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Tag: "estimates" at biology news

Researchers: Treated wood poses long-term threat

... been taken out of service, Townsend said. "These estimates provide decision-makers with information that helps them decide whether or not CCA-treated wood should go into lined or unlined landfills," he said. Unfortunately, however, that won't end the problem. A mathematical model based on the researchers' e...

Role of microRNA identified in thyroid cancer

...creasing slightly over the past several years. It estimates that about 25,000 new cases will be diagnosed in the United States this year. "This is just the beginning of our work identifying the role of miRNAs in thyroid cancer," says He. "But we are encouraged by these findings. We feel that they help poin...

Tsunami + 1 year: Reviving exhausted fisheries should trump replacing boats, gear, experts say

...cale fishing fleet and associated gear. Indonesia estimates damages to its capture fisheries sector at US$ 52 million. WorldFish Director-General Stephen Hall says that while delivery of aid has varied significantly from one location to another across the tsunami-affected region, infrastructure replacement i...

Sahara's edge studied from ground, air and space to improve water management

...er extent and dynamics, digital terrain models and estimates of water consumption and extraction. These require...F AG. "From there it is planned to derive improved estimates of water consumption in agriculturally-utilised areas. AquiferEx also provides a baseline dataset fo...

New methods offer insight into regulatory DNA

...enetic variation developed through the HapMap with estimates of gene activity obtained from cell cultures from 60 individuals who provided samples for the HapMap. More than 630 genes were studied, of which 374 were active in the cell cultures. If gene activity in a cell culture was skewed from the average, it ...

Hepatitis B accounts for 40 percent of 'missing' Asian women

...ing data on viral prevalence by country as well as estimates of the effect of hepatitis on birth sex, Oster concludes that hepatitis B can account for about 45 percent of the "missing women" ?or, more specifically, for as many as 50 percent of the "missing women" in Egypt and West Asia; under 20 percent in Ban...

Study shows AIDS drugs cost-effective, care underfunded

...patients, researchers previously relied on modeled estimates of health care expenditures. Now, using actual healthcare utilization data, researchers at the University of Alabama at Birmingham (UAB) have analyzed a year's worth of total health care expenditures for 635 HIV-infected patients, including HAART and...

HIV/AIDS rates in Tijuana, Mexico increasing at alarming rate

...n and Control of HIV, extrapolated with population estimates based on the 2000 Mexican census. The dramatic rise in HIV infection may be linked to a number of factors including Tijuana's proximity to the United States, which creates economic opportunities that attract migrants from elsewhere Mexico. Such mig...

Ocean 'dead zones' trigger sex changes in fish, posing extinction threat

...u says. The United Nations Environmental Programme estimates nearly 150 permanent and recurring dead zones exist worldwide, including 43 in U.S. coastal waters. In the Gulf of Mexico, for instance, a dead zone the size of New Jersey, some 7,000 square miles, develops each summer. Other affected areas of the ...

Marine mammals are on the frontline of failing ocean health

...use of death due to food borne disease in the US: estimates indicate that up to 25% of the population may be infected with the parasite, but people rarely show symptoms or are simply hit with a flu-like illness. However, if women are infected when they are pregnant, it can lead to miscarriages or developmenta...

Medical experts: US unlikely to have enough vaccines to stop avian flu

... and 180 million worldwide. Their median best-case estimates were 500,000 dead in the United States and 20 mill...ations to halt a pandemic. "The medical experts' estimates suggest this is a bigger risk than anything else we are facing," said Baruch Fischhoff, a study co-a...

Rhinos clinging to survival in the heart of Borneo, despite poaching

...tate that weren't covered in this survey. Previous estimates of rhino numbers had suggested there were 30 to 70 rhinos on the island of Borneo. Populations in other parts of the island are believed to be extinct. There are believed to be fewer than 300 Sumatran rhinos left in the world and they are considere...

Stanford/Packard scientist's data-mining technique strikes genetic gold

... Dewey decimal and other systems," said Butte, who estimates that the contents of the databases are more than doubling each year. "We need to write software now that will help scientists assign the proper concepts to each experiment." Microarray experiments allow researchers to compare the expression patterns...

Plant-derived vaccines safeguard against deadly plague

...o manmade threats, the Centers for Disease Control estimates 1,000 to 3,000 outbreaks still occur in the world every year as a result of people coming into close contact with rodents infected with fleas that harbor the bacteria. Particularly worrisome to human health is the pneumonic form of the disease, whi...

UMaine teams with fishermen to study affects of trawling on seafloor ecology

...tom trawling for two, four, and six years, Watling estimates that it will take roughly a decade for the surface-dwelling organisms to reestablish themselves, but cautioned that a full recovery of the habitat would take much longer. "I am pretty firmly convinced that if the groundfishing industry doesn't soon...

Alzheimer's found to be mostly genetic

...erside and the University of South Florida. Past estimates of Alzheimer's risk varied widely, with the highes...with skepticism. "Our finding confirms the higher estimates that have been suggested previously. The important thing is that no one has had this large a sample ...

Genetically engineered mosquitoes show resistance to dengue fever virus

...ecies Aedes aegypti. The World Health Organization estimates 50 million cases of dengue infection each year. Approximately 20,000 people die annually from the disease. James, a professor of microbiology and molecular genetics, and of molecular biology and biochemistry, has made a number of significant advance...

Tandem transcripts team together

... Compugen (Tel Aviv, Israel) independently derived estimates that at least 2-5% of the genes in the human genome are involved in these events. "In a certain way, this phenomenon challenges our very concept of a gene," points out Guigó. "The 'one gene, one protein' rule has been fundamental to molecular biolo...

Pesticides in the nation's streams and ground water

...rk for aquatic life. Water-quality benchmarks are estimates of concentrations above which pesticides may have adverse effects on human health, aquatic life, or fish-eating wildlife. Insecticides, particularly diazinon, chlorpyrifos, and malathion frequently exceeded aquatic-life benchmarks in urban streams. ...

The critical importance of mangroves to ocean life

...e the amount estimated from previous smaller-scale estimates of the carbon released into the ocean. Mangrove foliage, however, has declined by nearly half over the past several decades because of increasing coastal development and damage to its habitat. As the habitat has changed, ever-smaller quantities of m...

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