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Dust in Biological News

NASA-enhanced dust storm predictions to aid health community

NASA satellite data can improve forecasts of dust storms in the American Southwest in ways that can benefit public health managers. Scientists announced the finding as a five-year NASA-funded project nears its conclusion. Led by investigators Stanley Morain of the University of New Mexico in A...

Climate modelers see modern echo in '30s Dust Bowl

NEW YORK April 30, 2008 Climate scientists using computer models to simulate the 1930s Dust Bowl on the U.S Great Plains have found that dust raised by farmers probably amplified and spread a natural drop in rainfall, turning an ordinary drying cycle into an agricultural collapse. The researcher...

Tiny dust particles from Asian deserts common over western United States

It has been a decade since University of Washington scientists first pinpointed specific instances of air pollution, including Gobi Desert dust, traversing the Pacific Ocean and adding to the mix of atmospheric pollution already present along the West Coast of North America. Now a UW research...

A research work will be the reference to characterize the climatic impact of desert dust

This release is available in Spanish . In the context of the climatic change of the planet, those research works that throw light on global warming are of great interest. That is the case of the studies on atmospheric aerosol, a suspension of solid or liquid particles on a gaseous environm...

Cosmopolitan microbes -- hitchhikers on Darwin's dust

Scientists have analysed aerial dust samples collected by Charles Darwin and confirmed that microbes can travel across continents without the need for planes or trains - rather bacteria and fungi hitch-hike by attaching to dust particles. In a paper published in Environmental Microbiology, Dr. ...

Scientists to track impact of Asian dust and pollution on clouds, weather, climate change

Mice whose brain cells respond to a flash of light are providing insight into the complexities of the sense of smell and may ultimately yield a better understanding of how the human brain works. Investigators at Duke University Medical Center and the Howard Hughes Medical Institute have engineere...

Bacteria in Household Dust May Trigger Asthma Symptoms

New research shows that bacteria lurking in household dust produce chemicals that may trigger asthma and asthma-related symptoms such as wheezing. These bacterial chemicals, called endotoxins, particularly those found on bedroom floors, were linked with increased respiratory problems in adults. Thi...

Carbon nanoparticles toxic to adult fruit flies but benign to young

...toxic effects from fine particles," Rand, a co-corresponding author, said. "It may be like being in a coal mine. You get sick more from the effects of dust particles than from specific toxins in the dust." The scientists immersed adult Drosophila in a control test tube and test tubes containing four di...

AGU journal highlights -- Aug. 6, 2009

...nd nitrous oxide emissions from the ocean Martian dust storms generate lightning Scientists identify lak...x.doi.org/10.1029/2008JD011662 4. Martian dust storms generate lightning dust storms on Earth build up an electric field as...

Restoring a natural root signal helps to fight a major corn pest

...the insecticide chlothianidine. In spring 2008 this insecticide was directly applied on the seeds, but during sowing it was unintentionally emitted as dust from abraded seeds, contaminated flowers, and poisoned 330 million honey-bees. "Instead of using insecticides, the use of natural enemies of the c...

August 2009 Geology and GSA Today media highlights

... Natural and anthropogenic sources of East Asian dust Gaojun Li et al., State Lab of Mineral Deposits ...Densely populated East Asia is often hit by severe dust storms. It has been suggested that the dust particles are blown from the arid lands of norther...

MU researchers create drought conditions to unearth solutions

...world, droughts are the leading cause of crop failure. Droughts increase consumer costs, kill livestock, reduce crop yields, and trigger wildfires and dust storms, which lead to malnutrition and famine, social unrest and political instability. Now, researchers at the University of Missouri College of Agri...

2000-year-old statue of an athlete sheds light on corrosion and other modern challenges

...e current issue of ACS' Crystal Growth & Design , a bi-monthly journal. Best known as "The Scraper," the statue depicts an athlete scraping sweat and dust from his body with a small curved instrument. In the report, Davorin Medakovic and colleagues point out that Apoxyomenos was discovered in 1998 on...

CU-Boulder study shows Maya intensively cultivated manioc 1,400 years ago

...id Sheets. "But manioc, which grows well in poor soils and is highly drought resistant did not. I like to think of manioc like an old Chevy gathering dust in the garage that doesn't get much attention, but it starts right up every time when the need arises." Calculations by Sheets indicate the Ceren p...

Scholar unconvinced new lie-detection methods better than old ones

... CHAMPAIGN, lll. When a crime has been committed, the usual modus operandi for police detectives and their fictional counterparts has been to dust the scene for fingerprints. And once they have a suspect in custody, out comes the polygraph, or lie detector. But in today's forensically sophisti...

Breakthrough made in assessing marine phytoplankton health

...els, but never before confirmed. "Iron is often brought to the oceans by dust coming off terrestrial regions, and is a necessary nutrient that often limi... warming, circulation changes or the growth of deserts change the amount of dust entering the oceans, it will have an impact on marine productivity," Millig...

NASA satellite detects red glow to map global ocean plant health

...nt growth reaches the sea surface on winds blowing dust from deserts and other arid areas, and from upwell...lankton. At the same time, the amount of iron-rich dust delivered by winds is reduced. "On time-scales ...ta to track plankton responses to iron inputs from dust storms and the transport of iron-rich water from i...

UCSD researchers make first direct observations of biological particles in high-altitude ice clouds

...d that they were made up almost entirely of either dust or biological particles such as bacteria, fungal s... crystal residues and found that half were mineral dust and about a third contained nitrogen, phosphorus a... ICE-L team was able to identify the source of the dust as Asia or Africa. "This has really been kind of a...

Wind, salt and water are leading indicators of land degradation in Abu Dhabi

...ause of irreversible land degradation in the arid environment of Abu Dhabi. Wind erosion indicators are formation of fall dunes, blocking of highways, dust storms, nebkha features, reduction of waterways capacity due to deposition of sand, exposure of hardpans at the surface, and gravel lag. Nebkha dunes,...

Princeton geoscientist offers new evidence that meteorite did not wipe out dinosaurs

... Keller suggests that the massive volcanic eruptions at the Deccan Traps in India may be responsible for the extinction, releasing massive amounts of dust and gases that could have blocked sunlight, altered climate and caused acid rain. The fact that the Chicxulub impact seems to have had no effect on bi...

Alzheimer's, asthma, cancer, malaria and TB focus of new Singapore grants

...research institutes at Singapore's Biopolis and Fusionopolis. The common dust mite, Blomia tropicalis, which can have an immense impact on quality of lif...tis and eczema. Optimizing the potency of a genetic vaccine against the dust mite will be the focus of her second grant, while the third project will be...

Live-in domestics: Mites as maids in tropical rainforest sweat bee nests

... Mites not only inhabit the dust bunnies under the bed, they also occupy the nests of tropical sweat bees where they keep fungi in check. Bees and their young are healthier when mites...

UNH: Pavement sealcoat a source of toxins in stormwater runoff

...be a human health issue if people are exposed to it regularly. In addition, dust particles coming from a sealcoated driveway could potentially be troublesom... concern, but nevertheless he and Watts will be investigating PAH levels in dust from sealcoat later this year. "You don't see people falling over from ...

Straw bale house survives violent shaking at earthquake lab

...seven increasingly forceful tests, in the final powerful test the house shook and swayed violently, cracked at the seams and sent out a small cloud of dust and straw...and remained standing. Donovan oversaw the successful series of seismic tests run March 27 at the University's world-renowned Large-Sca...

Lohafex provides new insights on plankton ecology

...ll the silicic acid (the raw material of diatom shells). Iron sources for natural blooms are melting icebergs or terrestrial input from streams or via dust blown off Patagonia. Hence a major finding was that other algal groups, although stimulated by iron fertilization, are unable to make blooms equivalen...

NASA researchers find clues to a secret of life

... GREENBELT, Md. - NASA scientists analyzing the dust of meteorites have discovered new clues to a long-standing mystery about how life works on its most basic, molecular level. "We found more support ...

Carnegie Mellon researchers apply new statistical test

...ith soot from steel and coal-burning home furnaces and locomotives, but pollution controls over the past decade have helped remove much of the visible dust and soot from the air. Still, interest in tiny, almost invisible PM2.5 particles ballooned in the early 1990s, when studies showed a correlation betwe...

New aerosol observing technique turns gray skies to blue

...in California's Simi Valley. In 2005, a J31 research aircraft flew RSP over dust plumes in Oklahoma. In both cases, the airborne data corresponded well ...er aerosols are thought to affect climate more than larger aerosols such as dust and salt. Once Glory launches, scientists expect APS to offer a wealth o...

Dust deposited in oceans may carry elements toxic to marine algae

...od web. But new findings show that some sources of dust also carry toxic elements that can kill marine phy...ta Cruz. "Oceanographers have always thought of dust deposition as good for phytoplankton, because it p...ls from air originating over Africa, which carried dust from the Sahara Desert, had the opposite effect. ...

Mountain on Mars may answer big question

... northeast flank and they may still be there. Thanks to NASA's Phoenix lander, which scratched through the surface to find ice underneath the red dust last year, scientists now know there's water on Mars. So Morgan and McGovern feel it's reasonable to suspect water may be trapped in pores in the sedi...

GUMC young scientist selected postdoc Fellow at National Space Biomedical Research Institute

...avioral and psychosocial factors, remote medical care and related technologies, and habitability and performance issues such as sleep cycles and lunar dust exposure. Research findings also impact the understanding and treatment of similar medical conditions experienced on Earth. ...

American Institute of Physics announces awards for best science writing

... world behind the sneeze, and through them the book takes a larger-than-life look at those things that cause us to sneeze -- pollen, mold, goose down, dust mites, dander, flu, and other invisible irritants magnified 400 to more than 200,000 times. The universal nature of sneezing was the inspiration fo...

Arsenic and old toenails

...ppings. Arsenic occurs naturally in the environment and people can be exposed to it in several ways, for example through contaminated water, food, dust or soil. The risk of exposure is greater in certain areas of the UK where the natural geology and historic mining activities have led to widespread co...

Biotech scientists team with curators to stem decay of world's art, cultural heritage

... further, promoting the use of micro-organisms as biosensors to forewarn curators of potential risks to art objects from such threats as pollution and dust levels. She says fungi and bacteria can be harnessed to warn of significant environmental fluctuations and the impact of too many visitors. Accordi...

National Science Foundation forum to address ecological connectivity and climate in a changing world

...land and water hydrologic connectivity, climate change and nutrient delivery to waters from lakes to the sea connectivity and species change how dust shapes ecosystems biofuels and biodiversity: linking landscape change and ecosystem services Who: LTER Scientists What: Mini-Symposium on res...

TECNALIA uses artificial vision to improve recycling of electronic scrap metal

...is desired. The designed system should also be insulated from water and dust because it is to be used in the recycling industry, where all the machinery has to be strongly protected from great amounts of dust as well as withstand temperatures ranging from - 5C to 35C. Likewise, th...

February 2009 Geology and GSA Today media highlights

... the multiple orbital cycles, would be required. The martian layers could be evidence of a shorter-term process that affects the deposition of ice and dust at the poles, perhaps similar to the way the El Nio Southern Oscillation produces intermittent changes in Pacific Ocean temperatures and rainfall. Per...

Ocean islands fuel productivity and carbon sequestration through natural iron fertilization

...zet experiences only a small, short bloom later in the season. "Our first question was, 'where does the iron come from?'" said Charette. "Airborne dust wasn't the solution there isn't enough exposed soil on Crozet for winds to carry iron from the island to the deep water where the bloom occurs. While...

LOHAFEX: An Indo-German iron fertilization experiment

...rom RV Polarstern in 2000 and 2004, have induced phytoplankton blooms of similar size and composition to natural blooms fertilized by iron in settling dust and from melting icebergs. However, in contrast to the remote oceanic regions previously fertilized, LOHAFEX will be located in a more productive regi...

AGU journal highlights -- Dec. 31, 2008

...captured several cases of carbon dioxide frost and dust cascading down a steep polar scarp near the north ... 9. Influence of biomass burning and mineral dust found in West Africa The African Monsoon Multid... augmented by aircraft measurements as part of the dust and Biomass-Burning Experiment (DABEX) and modelin...
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