Tag: "dust" at biology news
Fact sheet: the Report on Carcinogens - 9th edition
...ilica (respirable size), which is primarily quartz dust
occurring in industrial and occupational settings in the form of fine, breathable particles, was also upgraded to a "known human carcinogen." Respirable crystalline silica results from mining and grinding coal. Comments were received expressing con...
Asteroid devastation possibly worse than feared
...ormous devastation, huge tidal waves, and a global dust
cloud that would block the sun and choke the plane...teroid impact and even the impact winter which its dust
cloud would create," Blaustein said. "But our study suggests thats just the beginning of the ecologi...
Lung ailments come with the paycheck for wide swath of workers
...stress. More common culprits include latex gloves, dust
kicked up during construction, and everyday cleani...ndustry. Mites and fungi often piggyback onto food dust
and can infiltrate the lungs, causing allergies and asthma. . Hospitals. The chemicals used to steri...
Road dust: Rural vehicles emit more pollutants than urban ones
...raffic outside the city and there are greater road dust
emissions in rural areas because of the proximity ...for higher rural readings," Turner explains. Road dust
is more than the simple dirt a vehicle stirs up as it moves along the road. Besides dirt from soil,...
NASA'S Earth Science highlights for the 80th Annual AMS Meeting
... Salt Lake City tornadic thunderstorms. See raging dust
storms in Africa and huge smoke plumes from raging...acks of Dust and Climate - The impact of airborne dust
on regional temperatures, atmospheric circulation, and ocean temperature are investigated to determi...
DFG to set up 21 new collaborative research centres in 2000
...f studying the development of interstellar gas and dust
matter. Speaker: Prof. Dr. Gisbert Winnewisser, I. Physikalisches Institut, tel.: 0221/470 3567 Engineering Sciences The collaborative research centre "Form-Memory Technology: Basic Principles, Design, Production" at Bochum University combines ...
Feeding the world by cleaning the air: study ties heavy regional haze to reductions in China's crop production
...g season. And China gets hit each spring with dust
from desert regions in the western part of the country. The research was done as part of the China-MAP project, supported by the U.S. National Aeronautics and Space Administration (NASA) as part of its long-term climate studies. The s...
Scientists discover how to make nanostructures assemble themselves
...researchers were pressing a mask into polymer when dust
prevented the two pieces from coming together. Afterwards, when they examined the polymer, they found that it contained a pattern of pillars even though the mask never touched it. Not only had the pillars grown by themselves, they had arranged themse...
Clemson forum may help decide design of future space suits
...at will withstand sharp edge abrasions, punctures, dust
adhesion and even ultra-violet effects. And unlike the moon, Mars has an atmosphere and gravity, which means the suits can't simply be updated versions of what has been used on previous missions to the moon. Gravity will also subject the astronauts ...
Media Advisory: The Geological Society of America 1999 Annual Meeting
... coastline environments; mapping aerosols, such as dust
and smokepalls; mapping faults and volcanoes with photographs and radar; integratingimagery over the world's coral reefs into a global database for better reefmanagement; using historical and recent images for landcover mapping andvalidation; and des...
UI study suggests genetics and gender affect human response to endotoxin
...t of agricultural dust, airpollution and household dust
-- causes or exacerbates asthma and other lungprob...or the current study, showedthat the inhalation of dust
containing endotoxin can cause problems forindividuals with asthma or other lung conditions. A poiso...
Microbial janitors tackle nuclear clean-up problems
...e ofradioactively contaminated concrete rubble and dust
to dispose of when they'redone. In some cases, radiation fields may be too high for human exposure, even for afew minutes, or the configuration of the space may not allow safe human accessat all. Then, the only alternative for facility operators m...
Astrobiologist to hunt small game in Siberia
...d by sunlight and melt the ice. The water and rock dust
is ideal forthe growth of cyanobacteria, diatoms, bacteria, fungi, and even mosses. "I found orange mosses covered with black films of cyanobacteria growing on theice of the Matanuska Glacier in Alaska. Rock debris broken from mountains androck surfa...
Congress briefs: International congress on ecosystem health
...icles are less than 10microns in size. These tiny dust
particles, which often make up most of theparticul...ng biodiversity, reducing pesticide use, buffering dust
and chemicals,and controlling weeds, erosion and nutrient loss. Tuesday, Aug. 17, 1:15 p.m. Sess...
New UNC-CH study explains variations in onset of ice ages
... that spawned theglaciers. Periodic dipping into a dust
ring that also circles the sun might haveshaded and chilled the planet instead, they said. Rial, who believed Milankovitch was correct, mathematically re-analyzedrecords showing when ice ages occurred during the past million years andcompared...
Discovery might boost cystic fibrosis therapy
...ke structures called cilia that continuously sweep dust
andbacteria out of the lungs in a natural cleansing mechanism, Knowles said.Infections and the resulting lung damage eventually kill young patients. A report on the findings appears in Thursday's issue (July 15) of theNew England Journal of...
African dust called a major factor affecting southeast U.S. air quality
...r Miami, Florida, according to a new study.African dust
can on certain days push the total number of airbo...al site in Miami. Hebelieves the impact of African dust
is comparable throughout the southeasternUnited States. His study was funded in part by the National...
Montana Hantavirus Study Looks At Why The Mouse Goes Into The House
...s in each side, a grid on the floor andfluorescent dust
at every entry. The dust
coats the rodents so researchers cancount the squares the mice visit. One building is baite...
Sandia, University Of Montana Researchers Try Training Bees To Find Buried Landmines
... the hive in all directions. "Bees are like flying dust
mops," says Bromenshenk."Wherever they go, they pick up dust, airborne chemicals,and other samples. If it's out there, they'll find it andbring it back." All landmines leak small amounts of explosives into nearbysoil or water. Sandia's mine-detection...
Study Suggests New Approach To Asthma
...gic response.In this scenario, an allergen such as dust
or mold provokes immune cells tosecrete chemicals -- cytokines -- that rally more immune cells to the site,triggering inflammation. Holtzman notes that many asthmatic patients don't suffer from allergies and thatmost patients with allergies don't de...
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