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Tag: "dust" at biology news

Growth in the sea comes down to a struggle for iron

...ily. Since prevailing winds tend to blow iron rich dust off the Asian continent into the Pacific, it may be that phytoplankton closer to the source of that dust may be primed to respond differently. Wells and his colleagues will be studying the possibility tha...

What's really making you sick? Plant pathologists offer the science behind Sick Building Syndrome

...h in its infancy to control it." Apart from mold, dust and other antigens also cause SBS. This makes SBS a complex problem and requires objective inspections for possible causes to detect and manage SBS. Skaria cites a need for more plant pathologists and mycologists to study building-related mold growth...

NASA probe could reveal comet life, scientists claim

...ed from a mixture of ices and organic interstellar dust at the time the solar system was formed some 4.6 billion years ago. "This material is quite porous, so it is daring again to predict that subsurface ponds or lakes form transiently due to heat penetrating the exterior crust. We can thus expect biolo...

Life detection instrument passes key test on road to Mars

...de of grass or a bug for ages, and contending with dust and temperature extremes that left her either freezing or sweating, Skelley ran 340 tests that proved the instrument could unambiguously detect amino acids, the building blocks of proteins. More importantly, she and Mathies were able to detect the pr...

Millennium Ecosystem Assessment: Many of 2 billion dryland dwellers at risk as land degrades

...livelihoods. And a rising number of large, intense dust storms plaguing many areas menace the health of pe...ountries. "An increase in desertification-related dust storms is widely considered to be a cause of ill-health (fever, coughing, sore eyes) during the dry ...

Researchers find ways to turn manure into power

...re harvesting by scraping is an accepted method of dust control." ...

Bacteria in Household Dust May Trigger Asthma Symptoms

... research shows that bacteria lurking in household dust produce chemicals that may trigger asthma and asth...nment, and it involved analysis of more than 2,500 dust samples from 831 homes across the U.S. Researchers at NIEHS and the University of Iowa found a stro...

Breath of the dragon: ERS-2 and Envisat reveal impact of economic growth on China's air quality

.... This is the same type of phenomenon that carries dust from the Gobi Desert across to the West Coast of t...ace gases, ozone and related chemicals, clouds and dust particles throughout the atmosphere. With a 960-km swath and alternate limb and nadir observations, ...

Pillows - a hot bed of fungal spores

...: "We know that pillows are inhabited by the house dust mite which eats fungi, and one theory is that the fungi are in turn using the house dust mites' faeces as a major source of nitrogen and nutrition (along with human skin scales). There cou...

The dangerous legacy of lead

...where children come in contact with lead paint and dust and, as a result, may experience intellectual impairment, behavioral problems and lifelong health issues. The effects of lead in children are irreversible, so public health officials are primarily focused on preventing these exposures. ...

UCR environmental scientists propose chemical solution to cleaning California's Salton Sea

...hrink, exposing lake sediments that could generate dust and worsen air quality. Fish and fish-eating birds would disappear in 10-30 years, and be replaced perhaps by birds that eat brine shrimp. And the sea would continue to smell, which might even get worse. Doing something to address the Salton Sea's pr...

NASA study solves ocean plant mystery

...ater is mixed by the wind. Iron also can come from dust blowing in the air. Approximately half of the photosynthesis on Earth occurs in the oceans, and the remainder on land. Ocean and land plants share the same basic requirements for photosynthesis and growth. These requirements include water, light an...

Iron critical to ocean productivity, carbon uptake

...from the air, but it also enters the ocean through dust deposited by the wind. Windstorms blowing sand and dust off large deserts are a major source of iron for the world's oceans. "It's like dumping a load of G...

Microbes hitchhike across Atlantic on desert dust

...rica to the Americas by hitchhiking on microscopic dust particles kicked up by storms in the Sahara, accor...vents is capable of dispersing large quantities of dust across oceans and continents. Since a gram of desert soil may contain as many as 1 billion bacteria...

Tropical forest CO2 emissions tied to nutrient increases

...atterns, sometimes riding on huge transcontinental dust clouds, said Townsend, who also is associated with...dence that humans are increasing the size of these dust clouds as both land-use patterns and climate change, which in turn can change the availability of nu...

Airborne mold spores increase kids' risk for multiple allergies

... more likely to develop allergies to mold, pollen, dust mites, pet dander and certain foods as they grew older. This is the first study to show a relationship between specific airborne fungal spores and an increased risk for multiple allergies in children, the UC team reports in an upcoming edition of P...

Allergy battle could be won in five years, says scientist

...lungs," he said. "Allergens from pollen or house dust mites are inhaled and then dissolve the binding material between the cells that form these protective linings; they can then enter the body by passing between the cells to cause an allergic response. "The drugs we are developing -- called Allergen ...

Dust to gust

More than half of the dust needed for fertilizing the Brazilian rainforest is...es might be responsible for making it such a major dust provider. It has been known for more than a decade that the existence of the Amazon rainforest depe...

Asia's odd-ball antelope gets collared

...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 effort to safeguard remaining populations, WCS, along wi...

Study finds the air rich with bacteria

...ere. This process is already occurring. Wind-blown dust and biomass from Africa's expanding Sahara desert ...significant quantities. Recent research links this dust to an increase in asthma cases in the Caribbean. "We need to determine what's in the air, so we ...

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