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Tag: "air" at biology news

Record air pollution above the Arctic

...for Polar and Marine Research observed the highest air pollution on record since measurements began in Ny...cular large-scale weather situation. Usually the air is pure and clear above the French-German AWIPEV-Research base in Ny-Ålesund at the western coast of...

Pollutant haze heats the Arctic

... polluted, cloudy episodes than it would be if the air was clean, concludes the study by Tim Garrett, an ... desert-like, and pollution is trapped when warmer air aloft holds down cold air at the ground surface. "The pollution is similar to the haze we get in t...

Air travel and pandemic flu

Restricting air travel from countries where there is a serious inf...s important to estimate how useful restrictions on air travel might be in controlling the spread of a flu virus. Travel restrictions are usually unpopular ...

Melatonin improves mood in winter depression

...-hour) rhythm disturbances, such as those found in air travelers and shift workers, as well as in totally blind people. Lewy and his colleagues in the OHSU Sleep and Mood Disorders Lab set out to test the hypothesis that circadian physiological rhythms become misaligned with the sleep/wake cycle during ...

Solvent exposure linked to birth defects in babies of male painters

...its kind to link concentrations of solvents in the air to these health outcomes, said Dr. Igor Burstyn, a University of Alberta professor of occupational and environmental health, who co-authored the study with researchers from Radboud University Nijmegen Medical Centre in the Netherlands. "This is the f...

Increase in carbon dioxide emissions accelerating

...aser says. Dr Fraser says the 30-year record of air collected at the Australian Bureau of Meteorology's observation station in Cape Grim, showed growth rates of just over one part per million in the early 1980s, but in recent years carbon dioxide has increased at almost twice this rate. "The trend ove...

Steep oxygen decline halted first land colonization by Earth's sea creatures

...here's an explanation for that, and it is that the air sac breathing system in dinosaurs and their descendants, modern birds, is more efficient than systems used by other organisms," Ward said. He and his colleagues tested that hypothesis by examining the breathing system used by birds. They found tha...

Contrary to common wisdom, scientist discovers some mammals can smell objects under water

...n't sniff the way we do," Catania said. "They push air 'out-in out-in' in a fashion strikingly similar to...nevitable that odorant molecules will mix with the air and be drawn into the nose when the bubble is inhaled." Just because the moles are getting whiffs ...

High hourly air pollution levels more than double stroke risk

High hourly levels of air pollution, more than double the risk of one type o... tends to be linked to the average daily amount of air pollution, rather than variations in hourly levels. The researchers assessed data on stroke deaths ...

Renewed dolphin slaughter prompts new campaign

...a brutal manner: speared, hooked, hoisted into the air by their tails, and finally eviscerated alive. The methods, say researchers, result in a long and painful death for these intelligent marine mammals. The Japanese government has made the unsupported claim that the animals compete with local fisher...

NASA study: Alaskan fires affected Houston air quality in 2004

...ne pollution levels increased significantly in the air above Houston on July 19-20, 2004. Researchers att...ine the impact of remotely generated pollutants on air quality in the lower atmosphere. In the summer of 2004, researchers in a NASA-led field research pr...

Asia's odd-ball antelope gets collared

...e is not clear, but it may serve to warm or filter air during Mongolia's frigid winters and notorious dust storms. Today saiga numbers have plummeted by 95 percent from an estimated one million animals just 15 years ago, due to poaching for Chinese medicines and competition with livestock. In an effo...

China's environmental challenges

... problems of energy and water shortages, water and air pollution, cropland and biodiversity losses are es...t by rapid urbanization, particularly on water and air quality. Min Shao et al. (Peking University) predict that by 2020, 50 percent of China's population...

Study finds the air rich with bacteria

Want biodiversity? Look no further than the air around you. It could be teeming with more than 1,8... an innovative DNA test to catalog the bacteria in air samples taken from the Texas cities of San Antonio and Austin. Surprisingly, they found a widely var...

Professors to develop hand-held pathogen testing device

Testing for deadly food, air and water pathogens may get a lot easier and cheap...here that cost-effective testing of food, water or air is needed for a number of pathogens. "Because of the lower cost, there also will be applications ...

Researchers barcode DNA of Venice museum's vast fungi collection

...he fungi present in plants, in the soil and in the air at any time." The project, which began in April, is expected to be completed by the end of 2007. "We do not know of any similar project in Europe, at least of this dimension," said Enrico Ratti, the museum's scientific director. "The importance...

Antioxidant protects against lung damage in silicosis

...capacity. (Vital capacity is the maximum amount of air that can be exhaled after a maximum inhalation, showing the status of lung tissue.) The authors believe that if serum HO-1 derives primarily from lung lesions, it could also represent a novel biomarker for evaluating the severity of silicosis. ...

Friendly bacteria in alcoholic milkshake could fight food allergies

... firm Rigest are looking for backers to develop an air sanitizing system using an enzyme found naturally ...for MRSA. The system could be used to sanitize the air in airplanes and hospital sick bays. ...

The first tree genome is published: Poplar holds promise as renewable bioenergy resource

...s opportunities to improve carbon removal from the air by producing trees that effectively shuttle and store more carbon below ground in their roots and the soil. Moreover, bioenergy crops re-absorb carbon dioxide emitted when biofuels are consumed, creating a cycle that is essentially carbon neutral." ...

Squid-inspired design could mean better handling of underwater vehicles

... has designed a series of other micro vehicles for air and underwater use. A National Science Foundation grant is funding their research....

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