Tag: "debris" at biology news
Shorter colds, milder flu may follow from newly revealed immune mechanism
...hage allows the host to ultimately clear the viral debris
and so finally halt the infection. Balancing these cell death and survival pathways can determine whether the virus or the host wins the battle." Next, the researchers will look further at precisely how CCL5 prevents cell death. "In this initial stud...
Study: 'Run-down feeling' with illness may last longer as people age
...ites of injury in the brain to scour away neuronal debris
and begin repairs, and during a peripheral infection the cytokines they produce cause behavioral changes that support convalescence and healing. However, if microglia overreact, the result can be pathological. Johnson's study, which was published in ...
University of Delaware researchers develop cancer 'nanobomb'
... cells, macrophages can effectively clear the cell debris
and the exploded nanotube along with it. Other treatments retain the carbon nanotubes and nanoparticles intact. If the material finds its way to the kidney or accumulates in the blood vessels, the nanoparticles might cause blockage and create probl...
Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests
...t causes a lot of damage in the understory. It's a debris
field down there."...
Selective logging causes widespread destruction of Brazil's Amazon rainforest, study finds
...est is cut down, leaving little behind except wood debris
and a denuded landscape. But a new satellite surv...ge. "When a tree trunk is removed, the crown, wood debris
and vines are left behind to decompose, releasing carbon dioxide gas into the atmosphere," Asner say...
Studies show apo A-I Milano gene transfer and antibody therapy cut atherosclerotic plaque
...lnerable to rupture. If a plaque deposit ruptures, debris
can block the flow of blood, but the bloodstream also can be blocked by the formation of a blood clot the immune system's attempt to heal the rupture. With a growing understanding of the inflammatory processes involved in the development and threat...
Gene linked with precursor to visual loss
...racellular deposits of lipid, protein and cellular debris
in the back of the eye), according to a multinational team of researchers. Several research groups recently showed that CFH increases the risk for advanced AMD. However until this study, the relationship between CFH, soft drusen, and advanced AMD w...
Picking particles faster than one at a time
...es of particles or something else altogether, like debris
or background noise. Therefore "a human still has to go through them and pick out the good ones," Adiga says. Adiga and his colleagues decided that concentrating too much attention on the particle itself in the early stages of picking -- for example...
Modern forests suffer from century-old logging legacy
...smaller trees, along with branches and leaves. The debris
dried out and in effect became kindling; in many c...eaves, tree trunks, branches and roots, and in the debris
that cover a forest floor. Carbon is also stored in soil - microorganisms break down dead leaves and...
ASU geologists suggest Mars features are result of meteorite strikes, not of evaporated lakes
...e base you get a turbulent ground-hugging cloud of debris
that goes out and makes a sedimentary deposit. You get deposits that can go up to almost 100 kilometers from big volcanoes. A big [meteorite] impact can provide deposits over tens of thousands of square kilometers. "Mars is cratered from one end to ...
A year on from the Asian tsunami, satellites are aiding regional rebuilding
...vered damage maps intended to assess the amount of debris
left by waves for towns and village within Aceh province. Tremendous amounts of debris
presented an added burden on reconstruction which needed to be quantified before its removal could b...
Logging may hinder forest regeneration, increase fire risk
...compaction and burial of seedlings by excess woody debris
took a heavy toll on naturally regenerated seedlin.... The logging of dead, burned trees might add more debris
than logging of green trees, researchers said, because without foliage to catch the wind, burned tre...
NHLBI media availability: Treatment shows long-term benefits for cystic fibrosis patients
...ch helps the airways to clear bacteria and inhaled debris
and could limit the number and severity of lung infections. Repeated infections are thought to contribute to lung damage over time. The study results could be particularly important if future research shows that the treatment similarly benefits infan...
Early California: A killing field
...ened to make way for a dance pavilion, eliminating debris
from recent centuries. What was left was a record of refuse containing the kinds of things native Californians hunted and ate from 2,600 to 700 years ago. Emeryville was the largest of some 425 shellmounds identified along San Francisco Bay by 1900....
2005 AAAS ISC Award goes to a team of Russian and American scientists
...operates internationally on space surveillance and debris
contamination of near-Earth space. He has helped develop a theoretical base and method for optimum search of space objects on highly elliptical orbits and in geosynchronous orbit. He co-originated (with Dr. Seidelmann) the series of workshops this aw...
Genetics experts join together to support efforts to identify remaining hurricane Katrina victims
...oodwaters receded and bodies recently recovered as debris
from the hurricane has been removed from the hardest hit areas of New Orleans. Using experience gained in DNA analysis of human remains after the terrorist attacks on Sept. 11, 2001, epidemiologists, clinical geneticists and genetic counselors are su...
Lunar rocks suggest meteorite shower
...omprised primarily of gases. Over time, the space debris
has lessened, either being gravitationally collected into the planets, or smashed into cosmic dust through collisions with other objects. The discovery of this apparent spike in meteorite activity suggests to the authors that a major event took place...
Nanotechnology shows early promise to treat cardiovascular disease
...tacked by white blood cells that scavenge cellular debris
and disease agents. "While these scavengers, called macrophages, perform an essential role in keeping organisms healthy, their interaction with highly oxidized LDL molecules has quite the opposite effect," he said. Mogue explains that macrophages acc...
Study outlines eruption at undersea volcano
... volcanic "bombs," globs of semi-molten sulfur and debris
about 15 centimeters in size that shot out 50 meters above Brimstone Pit. The science team also found microbial mats and hydrothermal vent-dependent animals on Rota, including two different species of alvinocaridid shrimp that numbered as many as 200...
Landfills, chemical weapon debris possibly a good match, computer model suggests
Putting building debris
contaminated by chemical weapons into municipal la...l landfill. Concerns about contaminated building debris
arose following the Sept. 11, 2001, terrorist attacks on the World Trade Center and the Pentagon as ...
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