Tag: "debris" at biology news

Duke Ecologist Says Logging Is Creating 'Mahogany Deserts'

...but most of the trees survive."However, the fallen debris provides ample fuel "that ignites in thenext dry season," she added. "And only 15 percent of the treessurvive the subsequent fire." But the odds are especially good that mature mahoganies will be left standing."They're very good survivors," with lar...

New Study Shows Dinosaurs From Gobi Desert Site Killed In Sudden "Sand Slides" Falling From Dunes - Study Also Reports First Dinosaur Tracks From Gobi

...le-known and only recently recognizedphenomenon, a debris flow, or "sand slide," in which a massive quantity...enched with water inheavy rains, triggering sudden debris flows. In talking to residents of thearea he began to hear intriguing stories. In one instance, a ...

MRI Scans Following Heart Attack Could Determine Future Health

...s were partiallyblocked with dying blood cells and debris following a heart attack were morelikely to suffer...t blood vessels and are more easily cloggedby such debris than larger vessels -- arteries and veins. In addition, researchers noted that the more seri...

Echocardiography Is Effective In Measuring Microvascular Damage From Heart Attacks

...uch as during aheart attack, dying blood cells and debris can clog the heart's capillaries --the body's narrowest blood vessels, says Wu. If the vessels stay clogged for along time, the capillaries remain blocked, preventing return of normal bloodflow even after the body recovers from a heart attack. This...

Cholesterol Lowering Drugs Stall Disease Progression In People With Below-Average Blood Cholesterol Level

...erosclerosis -- the build-up of fats andbiological debris in the tissue lining the inside of blood vessels. NewZealand scientists found that no matter how low a person's cholesterol readingis, lowering his or her cholesterol prevented further development of bloodvessel deposits that block blood flow to th...

Researcher Uncovers New Species Of Fungus In Wisconsin Lake

CHAMPAIGN, Ill. -- Among the underwater debris where elusive muskiesdwell in northern Wisconsin, ...tudies the microscopic life that feedson the plant debris he has recovered. After studying the new fungus, he was able to place it within the genus Phomatsop...

Scientist Finds Asteroid Fossil That May Have Caused Global Dinosaur Extinction

...etween Mars and Jupiter. This rocky belt of space debris is thought to be aleftover from the time when the planets first formed. Kyte notes that this particular asteroid moved out of the belt towardsEarth at about 40,000 miles per hour. The resulting impact is thought to havehad devastating conse...

Ancient Antarctic Environment Rocked By Volcanic Eruptions

... The evidence consists of layers of volcanic debris that were eruptedexplosively into the atmosphere a...eafloor. The thickness and coarseness of the main debris layerindicates a large-volume eruption that generated an ash cloud that reached intothe stratosphere...

New targets for nerve diseases, nerve regrowth: It's all in the handshake

...Schnaar adds, regrowth-blocking, myelin-containing debris gets cleaned up quickly by theimmune system in peripheral nerves. The cleanup is slower in the brain andspinal cord than in the peripheral nerves. "Knowing about this handshake' means we might be able to designsomething that could block MAG...

Astrobiologist to hunt small game in Siberia

...on theice of the Matanuska Glacier in Alaska. Rock debris broken from mountains androck surfaces by the moving ice and may also be captured in the ice and promoteice bubble ecosystems. Tracking down an astrobiologist on the move "It may be a cyanobacterium," Richard Hoover said as the electron microscope...

Hurricane Hugo serves as living laboratory for Clemson University forest scientists

... The only remaining evidence of Hugo today is the debris of larger fallentrees and logs that now provide habitat for wildlife and support the growth ofother plants by releasing nutrients into the soil. Three species of treesweathered the hurricane with less damage than others. Not surprisingly, theyare t...

Clemson's Baruch Forest Science Institute tracks forests' recovery from hurricane damage

... research sitesto measure the plant life and woody debris left behind, then inventory the typesof trees in t... The only remaining evidence of Hugo today is the debris of fallen treesand logs that now provide habitat for wildlife and support the growth of otherplants ...

USGS studies wildfire ecology in the western United States

.... Most burned only along the ground, clearing away debris and maintaining open, montane grasslands over large areas. Some of the trees Allen has sampled experienced more than 30 fires over the course of a few hundred years, without being killed. Swetnam and climate change scientist Dr. Julio Betancourt...

As Hurricane Floyd moves up the Atlantic Coast . . . .

...le in 1969, for example, intenserainfall triggered debris flows in Nelson County, Virginia causing 150 death...ne inch per hour for10 hours, is likely to trigger debris flows and other types of landslides onsteep slopes. As of mid-day on September 16, rainfall amounts...

Feeding the world by cleaning the air: study ties heavy regional haze to reductions in China's crop production

.... Agricultural practices involve burning crop debris at the end of the growing season. And China gets hit each spring with dust from desert regions in the western part of the country. The research was done as part of the China-MAP project, supported by the U.S. National Aeronautics and ...

Meet Conan the Bacterium

...ndred million years. Given the presumed sharing of debris generated from meteorite impacts amongst the early planets, origins of D. radiodurans might even be accidentally common between Mars and Earth. "By nature, it is selected to survive radiation damage very well," D. radiodurans can withstand without lo...

Biological legacies a key of ecological rebirth after Mount St. Helens eruption

... plants could sprout, even downed trees as well as debris that offered footholds for other plants to take ho...ing trees, dead snags, downed logs and other woody debris when timber is harvested is one way Franklin and other foresters and landowners are trying to make h...

Research to give authorities new tool in tracking terrorists

...rch for explosive residues by analyzing samples of debris or structures near an explosion. A number of different methods are used. The government-approved method uses liquid chomatography coupled with ultraviolet light detection, with the liquid chromatography separating the explosive from the other compoun...

Bio-X grant recipient explores link between molecular chaperones and serious diseases

...t proteins from folding prematurely or sticking to debris inside the cell,`` she says. ``Without chaperones, some cells get very, very sick.`` Frydman`s research team is investigating the possible link between chaperones and diseases such as cancer, Alzheimer`s and ischemia (insufficient blood supply to t...

December Geology and GSA Today highlights

...atastrophically failed and generated vast flows of debris into the deep sea as a result of the quake. The resulting mass flows reached as much as 1200 km offshore and accumulated in thickness as much as 25 m. The mass flows cover an area up to 3.9 million square kilometers, making them easily the most wides...

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