Tag: "coarse" at biology news
Researchers improve predictions of cloud formation for better global climate modeling
...te change from human activities. "Because of their coarse
resolution, computer models produce values on large spatial scales (hundreds of kilometers) and can only represent large cloud systems," Nenes said. Aerosol particles, however, are extremely small and measured in micrometers. This means predictive m...
Pinatubo's rivers show the danger isn't over when volcanic eruption ends
...igh terraces formed from a combination of fine and coarse
material, which stand above the river level but erode into the river during heavy rainfall and eventually can be stabilized by vegetative growth. The third source is high cliffs that are unstable and can drop large chunks of sediment into the water a...
'Sinkers' provide missing piece in deep-sea puzzle
...ctively called its "house." The outer filter traps coarse
particles, and can be up to one meter (three feet) across. The inner filter is slightly more dense, and traps small particles that the animals eats. The larvacean constantly pumps water through both filters, which typically become clogged after about...
Virginia Tech, Nanjing Institute researchers discover half-billion year-old fossils
...fossils are mostly preserved in sandstone, and the coarse
sand grains limit how much we can learn about the fine-scale morphologies of these fossils." Partly because of this limitation, scientists cannot agree on the fine-scale anatomy of Ediacara organisms and have been debating for decades their relation...
Coming to grips with robot learning
...ys Knoll. "The learner would then try to mimic the coarse
motions of the instructor and adapt them to achieve the same goal." Exploring the functional and neuropsychological mechanisms of imitation learning was the aim of the ArteSImit project funded by the Future and Emerging Technologies initiative of the...
Logging may hinder forest regeneration, increase fire risk
... did cause a significant increase in both fine and coarse
woody fuel loads, elevating the short term fire risk, the report said. "Postfire logging may conflict with ecosystem recovery goals," the authors concluded....
Magdalenian Girl is a woman and therefore has oldest recorded case of impacted wisdom teeth
... during the stone ages, scientists say, due to the coarse
diet of the period. This coarse
diet would have required more chewing and higher bite forces, which could have stimulated growth of ...
A gene predisposing to pituitary tumors identified
...egaly or gigantism. Acromegaly is characterized by coarse
facial features, protruding jaw, and enlarged extremities. The potentially severe symptoms of untreated acromegaly, develop slowly and the condition is difficult to diagnose early. Gigantism refers to excessive linear growth occurring due to GH overs...
Climate change not the only factor controlling distribution of plant species
...at the spatial distribution of plant species, at a coarse
resolution, mainly reflects each species' climatic requirements. However, few studies have carefully matched maps of a species distribution with maps of climatic variables to see where climate may fail to predict a species distribution, thus suggesti...
The LouseBuster kills
... of eggs. -- Aplastic hand piece with 10 coarse
teeth (not like fine-toothed nit combs) was attached to the end of the LouseBuster hose and raked through hair while hot air blew the opposite direction. All areas of the scalp were raked and exposed to hot air for at least 30 seconds. The LouseBuste...
TIGER workshop highlights project results
...st SHARE products are ready an archive containing coarse
resolution soil moisture has been compiled for the SADC region from 1992 to 2000, a near-real time processor for more recent data has been set up and currently data is being processed for North West Africa and made available within three-day interval...
Rats on a road trip reveal pollution-heart disease risk
...trafines. They are 60,000 times more numerous than coarse
particles found in air pollution. Ultrafines in ambient air are especially harmful because they mix with reactive gases and are taken deep into the lungs as aerosols. At that point, they may interact with the cells that line the blood vessels and ent...
National Academy of Engineering announces winners of $1M challenge
...er. A top bucket is filled with locally available coarse
river sand and a composite iron matrix (CIM). The sand filters coarse
particles and imparts mechanical stability, while the CIM removes inorganic arsenic. The water then...
MIT model helps researchers 'see' brain development
...er to identify the age at which each type of fold, coarse
or fine, developed, and how quickly. She found that the coarse
folds, equivalent to the largest folds in a crumpled piece of paper, develop earlier and more slowly...
Coarse particulate matter in air may harm hearts of asthma sufferers, UNC study finds
CHAPEL HILL -- Breathing air containing coarse
particulate matter such as road or construction du...nd that in people with asthma, a small increase in coarse
particulate matter in outdoor air raised bad cholesterol and increased the count of inflammation-lin...