Tag: "air" at biology news
Essential smell gene may provide key to new insect repellents
...le, molecules from the fruit must waft through the air
to specialized nerve cells that detect them. In hu... a fly, then puffed the odorant molecules into the air
nearby. In normal flies, a dip registered on the electroantennogram (similar to the chart that recor...
Modest climate change could lead to substantially more and larger fires
...s and the combination of high temperatures and dry air
associated with the Santa Ana winds, not temperature by itself, McKenzie says. At the other extreme are Montana, Wyoming and New Mexico. Montana is the most sensitive, with the models predicting a 5-fold increase in mean area burned over the observe...
Analysis of biological clock may lead to greater understanding of human disease
...ative feedback loop similar to that employed by an air
conditioning thermostat system. It reacts when the temperature gets too cold by reducing the cooling. The engineers are looking for the principles underlying the architecture of the fruit fly's system that enables it to be so robust, according to co...
Professor calls for a new branch of learning
...metre, are already present in large numbers in the air
from natural sources and from vehicle exhaust emissions. They are also found in sunblocks, boot polish, tyres and photocopier toner. In future, however, they may be used in clothing manufacture, to purify water, clean up contaminated ground, deliver ...
Better living through urban ecology
...ts include investigating how urban trees influence air
quality, how improving Baltimore's sewer system affects ecological processes, and documenting the ecological effects of restoring urban watersheds. The City of Baltimore will be investing 1 billion dollars in the sewer infrastructure project; nearly...
Environmental costs of home construction lower with wise choice, reuse of building materials
...re using energy, you're polluting water, polluting air
and kicking out carbon dioxide emissions." Indeed, the carbon emissions associated with energy use represented one of the more important environmental impacts, the report says. The researchers considered, for example, carbon dioxide, methane and nit...
What actually influences air pollution over the Indian Ocean?
...ing the winter monsoon period in 1999 to study how air
pollution affects climate processes over the tropi...olluted northern hemisphere with the more pristine air
of the southern hemisphere (Fig. 1a). Research on southern Asian pollution at the Max Planck Institu...
Clemson University spin-off uses corn to make plastics, provide cleaner air
...le plastics discarded by consumers. And reduce the air
pollutants from plants that produce plastics for everything from cars to airplanes to golf clubs. "By finding commercial applications for Clemson research, Tetramer is fueling South Carolina's knowledge-based economy," said Earl H. Wagener, CEO of Te...
Managing occupational exposures to potential bioterrorist agents
...ies are sterilized as they leave the facility, and air
is filtered by dedicated air
handling systems. In addition, a series of work practice controls, barriers, and engineering systems...
New understanding of the machinery of flinching
...corded how the monkeys responded to a mild puff of air
to the face. The researchers found that the activa... well as to effects on the sensory response to the air
puff. The researchers concluded that their findings help reveal the role of the polysensory zone (PZ...
Near-zero-energy buildings blessing to owners, environment
...s Oak Ridge National Laboratory. In Tennessee, air
pollution is of special concern as the state ranke...rs. The houses also provide high indoor air
quality and mold, mildew and moisture control. In fact, the advanced construction techniques make th...
Size does matter when choosing a mate
...pecies, such as Dunlins, battles take place in the air
and agility and smallness become more important factors. The result is that Dunlin males are smaller than the females. Although biologists thought that sexual selection must be playing a role in driving Rensch's rule, until now nobody had been able t...
Physics gravity model applicable to disease spread
...gy. "Today, it is very different. Even excluding air
transportation, someone like me is more likely to go to New York City than Lewistown, Pa., even though Lewistown is closer to where I live." Borrowing from physics and transportation theory, the researchers are using an empirical gravity model along...
Dispute over life in Antarctic lake
...at it has been pumped full of oxygen released from air
bubbles in the overlying ice. None can escape, so oxygen concentrations are thought to have rocketed to around 50 times the norm for lakes. "Oxygen is very toxic at these concentrations," says Bulat. Added to this, he says, the probable concentration...
New England forests at greater risk from air pollution
PORTLAND - When it comes to forests, air
pollution is not an equal opportunity hazard. While dirty air
spreads across large areas of the New England region, it's more scattered in the southeastern part o...
Ecologist calls for creation of an international panel to assess human behavior
.... ''But there is no parallel effort to examine and air
what is known about how human cultures, and especially ethics, change, and what kinds of changes might be instigated to lessen the chances of a catastrophic global collapse.'' Ethics and humanity Although modeled on the ecosystem assessment project...
Annals of internal medicine tip sheet, July 20, 2004
...lines show how heart patients can travel safely by air
After reviewing literature on heart patients traveling by airplane, authors discuss effects of air
travel and security devices on pacemakers and implantable automatic defibrillators; preflight screen...
New 20-year study links COPD and asthma
...ng exposure to risk factors like tobacco smoke and air
pollution may delay disease progression to COPD. Effective antiinflammatory therapy at the onset of asthma may also decrease the likelihood of COPD developing years later," added article coauthor Robert A. Barbee, MD, FCCP, University of Arizona, Co...
When sun's too strong, plankton make clouds
...ompounds. Sulfur in the DMS sticks together in the air
and creates tiny dust-like particles. These particles are just the right size for water to condense on, which is the beginning of how clouds are formed. So, indirectly, plankton help create more clouds, and more clouds mean less direct light reaches ...
Researchers discover how worms' noses sense oxygen
...iscovered that the worm doesn't like as much fresh air
as people thought. While nematodes grown in labora...ame oxygen concentration humans breathe in ambient air
- 21 percent - nematodes appear to prefer only 6 percent oxygen. "It was totally unexpected that the...
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