environmental 2 4

Tag: "environmental" at biology news

New technologies coming too fast for Indian farmers

... D. Stone, Ph.D., professor of anthropology and of environmental studies, both in Arts & Sciences, at Washington University in St. Louis, has completed the first detailed anthropological fieldwork on these crops and the way they impact ?and are impacted by ?local culture. The study, published in the February...

Are we killing the world's oceans?

...y a role in the collapse of coastal fisheries, and environmental issues surrounding offshore petroleum resource development. There will be opportunities for questions and discussion. Dr. Daniel Pauly, Director of the Fisheries Centre at the University of British Columbia, will kick off the forum with a free pub...

Shedding new light on proteorhodopsin

...bacterial cell's energy balance only under certain environmental conditions, namely when the cell's ability to respire has been impaired," said Jan Liphardt, a biophysicist who holds a joint appointment as a Divisional Fellow in Berkeley Lab's Physical Biosciences Division (PBD) and the Physics Department of UC Be...

Grape expectations for healthier wine

...se these compounds are up-regulated in response to environmental stress in plant cells, it could be that the ozone is perceived as a biochemical insult. Andrew Waterhouse, Chair of the Department of Viticulture at University of California, Davis, said that because wine growers don't store grapes for prolonged p...

Mailman School of Public Health researchers report blood DNA can be early predictor of liver cancer

... team of researchers previously found that several environmental factors including aflatoxin B1, a dietary mold con...corn; polycyclic aromatic hydrocarbons, ubiquitous environmental contaminants; and 4-aminobiphenyl, a carcinogen found in cigarette smoke, are also associated with t...

Darwin's famous finches and Venter's marine microbes

...idly emerging trade of metagenomics (also known as environmental genomics) that seeks to examine genomic snapshots taken directly from the environment. "Metagenomics allows us to sample the 99 percent of all bacteria that won’t grow in the lab," explains Manning. "GOS opens a huge window into biological and ge...

New findings blow a decade of assumptions out of the water

...hat are usable by life ?in order to understand the environmental controls on nitrogen fixation and its likely response to climate change in the past and in the future, says Curtis Deutsch, a University of Washington research assistant and lead author of a paper in the Jan. 11 issue of Nature. The new research, for...

New cell type identified in cancer development

... remain benign or become malignant, depending upon environmental cues. The finding may help define the role of cancer stem cells in the growth and recurrence of the disease as well as offer new options for cancer prevention, detection and treatment. Current cancer stem cell theory holds that tumors are comprised...

Climate change could trigger 'boom and bust' population cycles leading to extinction

... Christopher C. Wilmers, an assistant professor of environmental studies at the University of California, Santa Cruz. Favorable environmental conditions that produce abundant supplies of food and stimulate population booms appear to set the s...

Smoking ban dramatically reduces air pollution in Irish pubs

...ffect of the world's first national smoking ban on environmental tobacco smoke exposure in 42 Dublin pubs and among...arworkers, the self-reported workplace exposure to environmental tobacco smoke was over 40 hours per week pre-ban, but dropped to about 25 minutes post-ban, showing ...

What's in the water? Estrogenic activity documented in fish caught in Pittsburgh's rivers

....H., M.P.H., principal investigator, department of environmental and occupational health, University of Pittsburgh ...lth. "The goals of this project are to use fish as environmental sensors of chemicals in the water and the aquatic food chain, and to determine the origins of these ...

Failure to meet United Nations sanitation target could affect millions of the world's poorest

...er "Jenna" Davis, assistant professor of civil and environmental engineering and a fellow at the Woods Institute for the Environment at Stanford. "[But] on the sanitation side, we're in big trouble. We're probably going to miss that goal by 500 million people." Sanitation, the 'poor cousin' Today, more tha...

Study identifies risk factors for spread of respiratory infections in hospitals

...cially severe outbreaks, the researchers looked at environmental and administrative factors that may have assisted in the transmission of the infection from one patient to another. This new study suggests that hospital beds placed too closely together, hospital staff working while having symptoms of SARS, and the ...

Canada's new government invests $200M in the fight against the mountain pine beetle

...nce of British Columbia to ensure the economic and environmental well-being of our communities and forest resources. We are taking action on this important issue and delivering real results for Canadians." The Government of Canada will work closely with the Province of British Columbia to deliver a comprehensi...

Cancer tip -- Nanoparticles can damage DNA, increase cancer risk

...re no known ways to prevent the harmful effects of environmental nanoparticles. "It is important to know whether the nanoparticles are entering the cell and causing DNA damage directly or if they are acting on the membrane and inducing a cascade of events resulting in DNA damage," Pacheco said. "Once we unders...

How genetic malfunction causes a form of retardation

... protein, SHP-2, that plays a key role in allowing environmental cues such as growth factors to instruct multipotent precursor cells to generate one cell type versus another. Moreover, we have shown that the same constitutively activated SHP-2 that occurs in a subpopulation of NS patients causes aberrant neural de...

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

...'' said Jacobson, associate professor of civil and environmental engineering. ''But our results show that a high bl...to account population distribution and the complex environmental interactions.'' In the experiment, Jacobson ran a series of computer tests simulating atmospheric...

New cigarette designs don't offer lower predicted cancer risks

...onal cigarettes," said Pankow, Ph.D., professor in environmental and biomolecular systems at OHSU's OGI School of Science & Engineering, and a member of the OHSU Cancer Institute. "People have known for a long time that there are carcinogens in tobacco smoke, but if you look at the levels in conventional ci...

Birth rate, competition are major players in hominid extinctions

...ng knives." The Neandertal encountered increasing environmental seasonality with longer cold seasons and shorter p...today, control our cultural behavior to ensure our environmental success," says Jablonski. "Can we control growth and population density, or come up with new techno...

Parasite infection may benefit MS patients

...lerosis (MS) has been noted in recent decades, and environmental factors could be the cause of this increase. One theory, similar to the "hygiene hypothesis" in which an excessively germ-free environment may contribute to an increase in allergies, holds that a decline in infectious diseases may play a role in incr...

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