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Tag: "debris" at biology news

WHO Warns Of Increased Risk Of Vector-borne Diseases In Tsunami-affected Areas

...to breeding sites in the open water containers and debris around camps and homes", added Dr Samlee. Experts...g activities). WHO also assists in the clean-up of debris in which water collects, to prevent the formation of dengue breeding sites. In India, a number of a...

Genetic therapy reverses nervous system damage in animal model of inherited human disease

... disease. In a lysosomal storage disease, cellular debris accumulates within storage areas of cells called lysosomes. In the case of AMD, children are born with a faulty version of the gene for an enzyme called lysosomal alpha-mannosidase or LAMAN. "Shortly after birth, brain tissue is still physically mat...

Columbia study shows widely used artery clearing device does not help patients during heart attack

...own that a commonly used procedure to remove fatty debris from blocked arteries during a heart attack does n...found that the devices were successful in removing debris from the arteries in angioplasties during heart attacks, but it showed that there was no benefit to ...

Tsunami-damaged coral reefs should be left to recover naturally, say scientists

...kwash ?waves returning to the sea that sucked back debris from the shore such as trees, cars, sediment and p...recommend that, in most cases, simply removing the debris from the reefs would be sufficient to allow them to repair themselves. Only in areas where corals we...

Most common lung cancers may begin in newly discovered cells

...e branches to the lobes. Ciliated cells that catch debris give way to the bronchiolar cells called Clara cells. The airways end with the alveolar cells, which are the grape-cluster-like sacks lined with microscopic vessels, where oxygen and carbon dioxide are exchanged. At the junction of the bronchioles a...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...s in preparation for the event, and swept clear of debris immediately prior to igniting the fires, to contain the fire within the experimental parcel. In the first round of burning last year, the fire was quite low, creeping along the ground burning leaves and small branches that had accumulated on the fore...

Discovering an ecosystem beneath a collapsed Antarctic ice shelf

...stine chemical-based ecosystem to disturbances and debris that have already begun to bury the delicate mats and mollusks established within the underwater environment. He added that there may be a sense of urgency to investigate the unusual seafloor ecology below the Larsen shelf because of the likelihood o...

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." ...

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 prob...

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 st...

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 exampl...

Researchers map out networks that determine cell fate

... indiscriminately engulfing and digesting cellular debris and pathogens. The shorter-lived neutrophils are the immune system's vultures, flocking to the site of an infection to target and ingest invading organisms. Although both cell types come from cells known as myeloid progenitors, each type relies on ...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

... techniques allowed the researchers to distinguish debris from features of interest. ''The real point is that you can do quantitative analysis,'' Boxer said, emphasizing that this research allowed the first high-resolution mapping of chemical features in a region of interest. ''We can analyze a few percent...

The chimpanzee stone age

...; habitual reoccupation of sites where garbage and debris accumulate; and the use of locally available resources. Nut cracking behaviour in chimpanzees is transmitted socially, and the new discoveries presented in this study shows that such behaviour has been transmitted over the course of many chimpanzee g...

In mice, drug protects against diabetes and atherosclerosis

...in macrophages, which scavenge and digest cellular debris and microbes in the blood stream. The aP2 signals encourage macrophages to load up on cholesterol and become "foam cells" that adhere to artery walls, creating dangerous plaques that eventually may rupture and trigger a heart attack. In mice lacking ...

Cells re-energize to come back from the brink of death

...e autophagy—the process by which a cell “chews up” debris and broken components, such as damaged mitochondria. After disposing of damaged mitochondria the cell can replace these vital components. “We found that in the absence of caspase activation, cells that avoided CICD took about a week or so to begi...

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