Tag: "dust" at biology news
Researchers identify key molecular signal in plant pollination
...d on the surface of a flower, it's like a speck of dust
landing on the skin," said Preuss. "The fertilization process is unlike that in animals, in which the sperm swim through a well-defined cavity. Instead, this pollen grain somehow has to grow a tube from the stigma of the flower, digesting tissue to b...
Air dried sperm could allow home storage
...hat the sample remained uncontaminated by airborne dust
or micro-organisms. The dried sperm can then be stored at normal room temperature or in a normal refrigerator and do not seem to require any other special storage conditions. Just prior to injection by ICSI into an egg, the sperm film can be re-suspe...
Xyzal shows significant improvements in quality of life for persistent allergic rhinitis sufferers
...tinue well into the autumn due to persistent house dust
mite allergy." The XPERT TM trial also showed that fewer patients treated with Xyzal® suffered from a co-morbid disease, such as asthma and upper respiratory tract infections, compared to patients treated with placebo (54% vs. 71% respectively...
Five studies look at risks of differing particulate matter, including exposures on 9/11
...Miller says what was only a small component of the dust
after the collapse of the towers were the far more...e literally lifted out of the area by the gigantic dust
plume visible in all the photographs and television images. It shot up for thousands of feet, initia...
Science Picks--Leads, Feeds and Story Seeds (April 2003)
...60, firstname.lastname@example.org ) Dust on the Wind -- African dust
is being carried half way around the world by ridi... are investigating how millions of tons of African dust
may be contributing to the demise of coral reefs and causing diseases in manatees, sea turtles and d...
Natural Science and Public Health: Prescription for a Better Environment
...Africa : Each year, millions of tons of air-borne dust
cross the Atlantic from Africa, and arrive in part...which has dramatically increased the quantities of dust
making it across the ocean. Scientists are trying to determine whether increases in asthma are caus...
Good things, small packages
...ironments, Sammakia said. At this scale, an errant dust
particle can completely obliterate from view the elements researchers are most trying to look at. "The good news" Sammakia noted, "is that an assembly line may require considerably less space than a traditional assembly line." Working at this scale ...
Scientists re-evaluating the meaning of 'desertification,' Duke ecologist says
...roaching into grasslands in southern New Mexico to dust
storms in China." He noted that the United Nations established a convention in 1994 to target what it termed "poverty, drought and food insecurity in dry land countries experiencing desertification." However, "the variety of spins put on what is mea...
Researchers respond to threat, look for anthrax
...ale mail sorting machines that generate background dust
- just as you would find in a real sorting facility," Dr. Andrew McFarland, Wyatt Professor of Mechanical Engineering in the Dwight Look College of Engineering at Texas A&M University, said. As mail goes through a sorter, it moves through rollers tha...
Discovery of size changes of Bacillus spores may lead to simpler, faster anthrax detector
...smic rays in special glasses and of interplanetary dust
grains in aerogels, and more recently, searching for unusual microbes in Greenland and Antarctic ice. In researching what is known about spore size, they found that most measurements have been very rough and have not taken account of humidity or othe...
Scientists find geochemical fingerprint of World Trade Center collapse
...World Trade Center and the resulting deposition of dust
and ash into the Hudson River have provided scientists with a definitive geochemical signal. This research provides valuable information on geochemical processes in New York Harbor and the Hudson River estuary, and has applications to other estuarie...
Study may direct solutions for air pollution disease affecting agricultural, industrial workers
...with high concentrations in organic dusts, such as dust
from grain, and air-pollution particles. Several s...s. In fact, healthy study subjects challenged with dust
from animal-confinement buildings develop airflow obstruction and an increase in the serum concentra...
Asian dust storm causes plankton to bloom in the North Pacific
...cean after a passing storm had deposited iron-rich dust
from the Gobi Desert. The carbon measurements, rep...first direct observation of wind-blown terrestrial dust
fertilizing the growth of aquatic plant life. A group of scientists led by oceanographer James K. B...
New study of Ground Zero air shows indoor spaces can be cleaned; diesel pollution remains a threat
... Gulf War oil fires, volcanic eruptions and global dust
storms. In February, the DELTA Group released what is still the most thorough analysis of the dust
and smoke blown through lower Manhattan after the trade center collapse. That analysis found unprece...
Imaging apparatus characterizes drops in 'dirty' laboratory environments
...the University of Arizona," Scheeline said. "Coal dust
from experiments and sand from the desert were all...enclosure. "Despite months of experiments on coal dust
combustion taking place in the laboratory -- which left a thick layer of dust
on the outside of the ...
Science picks - leads, feeds and story seeds
...of workers and passersby fleeing from the storm of dust
that followed the Sept. 11 collapse of the World T...ed a remote sensing and mineralogical study of the dust
deposited in lower Manhattan around the WTC. View the full report at http://geology.cr.usgs.gov/pu...
UCSD researchers fabricate tiny 'smart dust' particles
...u can have something that's as small as a piece of dust
with some intelligence built into it so that it co... at UCSD who headed the research effort. "When the dust
recognizes what kinds of chemicals or biological agents are present, that information can be read li...
World Trade Center clean-up workers report acute respiratory problems
...ratory problems may be associated with exposure to dust
and airborne contaminants at "Ground Zero." Since ...actively the debris was being removed, or how well dust
suppression was being conducted. Responses to the questionnaire indicate that respiratory symptoms,...
Scientists confirm age of the oldest meteorite collision on Earth
...ry large impact, it would send enormous amounts of dust
into the atmosphere, and the climate might cool. Such a scenario may have contributed to the extinction of dinosaurs. They're really big guys and they're very strong, but they're actually much more susceptible to environmental changes than microbes a...
A thermodynamic history traces temperature's effect on Universe, Earth and humans
...se universe. Along the way, the warm interstellar dust
near our newborn sun condensed into moderately sized planets, while much lower temperatures further afield froze the primordial soup into giants like Saturn and Jupiter. Segr, a Penn professor since 1967, describes physics as his "family business." ...
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