Tag: "explosions" at biology news
Sardines may prevent toxic gas eruptions off the California and African coasts
...point," possibly ripe for phytoplankton population explosions
followed by their gaseous demise. "This study demonstrates that overfishing one species of fish, such as sardines, can profoundly alter an entire marine ecosystem in ways that may be difficult or impossible to reverse," says Ellen Pikitch, executiv...
Coastal dead zones may lead to ecosystem-based fisheries management
...e Gulf, these fertilizer nutrients fuel population explosions
among microscopic marine plants. As the marine algae grow and then die, they consume most available oxygen in bottom layers. Crowder described how fish and shrimp can evade death simply by relocating to the zone's edge. "Basically, it's the same as t...
Oceans more vulnerable to agricultural runoff than previously thought, study finds
...ertilizer runoff from big farms can trigger sudden explosions
of marine algae capable of disrupting ocean ecosystems and even producing "dead zones" in the sea. Now a new study by Stanford University scientists presents the first direct evidence linking large-scale coastal farming to massive algal blooms in th...
University of Delaware researchers develop cancer 'nanobomb'
...properties, and found we could trigger microscopic explosions
of nanotubes in wide variety of conditions." Exp... the localized thermal energy imbalance to set off explosions
that are intrinsic in nature. Panchapakesan said the nanobombs are just that, tiny bombs on the na...
Highlights from October ESA journals
...in the South Pacific Ocean. Controlled underground explosions
kept radiation from reaching fish; pressure waves from the testing killed them. Using nearby study sites, French scientists discovered fish in coral reefs can recover from massive die-offs within five years of a major incident. For the fish populati...
ASU geologists suggest Mars features are result of meteorite strikes, not of evaporated lakes
...atory, say that base surges resulting from massive explosions
caused by meteorite strikes offer a simpler and more consistent explanation for the rock formations and sediment layers found at the Opportunity site. The researchers published their findings in the current issue of Nature. The research could impact...
18 million hours of supercomputing time awarded to 15 teams for large-scale scientific computing
...el the first-ever full-star simulations of stellar explosions
in three dimensions. Another group from UC Berkeley and Lawrence Berkeley National Lab used their INCITE allocation to study key aspects of photosynthesis to better understand this sustainable energy source. A third group from Georgia Tech was able t...
Controlling algal blooms
...duction in the oceans, undergo seasonal population explosions
called phytoplankton blooms that attract billions of krill, copepods, and other grazing predators. As a defense, wounded diatoms release aldehyde compounds that minimize future diatom casualties by compromising the hatching success of grazers. But th...
Biodesign Institute participates in first-of-its-kind 'coyote' disaster preparedness drill
...e greater Scottsdale area. The scenario began with explosions
in Nevada to knock out large power grid in the Southwestern U.S.; large explosions
at several sites in Scottsdale; blackouts in Scottsdale and Paradise Valley; the Arizona Canal breac...
Study outlines eruption at undersea volcano
...d fluctuate in volume and intensity, punctuated by explosions
of sulfurous clouds. The researchers also describe...activity never before directly observed, including explosions
of lava from a crater accompanied by a red glow and voluminous volcanic gases and ejected rocks," Em...
DOE announces $60 million in projects to accelerate scientific discovery through advanced computing
... physics from the tiniest particles to the massive explosions
of supernovae. Advanced computing is a critica...lated the conditions which trigger massive stellar explosions
know as Type 1a supernovae, which are critical to understanding the nature of our universe. Climate...
Space radiation threats to astronauts addressed in federal research study
...mic rays -- thought to come from distant supernova explosions
-- as well as energetic particles from the sun and charged particles trapped in Earth's magnetic field, he said. Potential health effects include leukemia and other cancers, and degenerative tissue effects like cataracts, heart disease, digestive d...
Climate scientists to discuss the chilling consequences of nuclear war
...has changed from a big war in the North to smaller explosions
in the political South." Detonation of nuclear weapons in the tropics could have harsher effects than a war in the northern latitudes, Schneider explained, because heat from the sun could loft plumes of smoke higher into the atmosphere, where it co...
Battlefield and terrorist explosions pose new health risks
...haled for even very brief periods following fires, explosions
of military munitions or detonations of terrorist devices could cause serious lung damage, scientists reported today at the 233rd national meeting of the American Chemical Society. Dr. Zengfa Gu, M.D., Ph.D., and colleagues at the Walter Reed Arm...
ACS News Service Weekly PressPac -- March 21, 2007
...y from hydrogen in air Battlefield and terrorist explosions
pose new health risks Toward improved forms of a...:00 p.m., Central Time Battlefield and terrorist explosions
pose new health risks High concentrations of nitrogen dioxide gas inhaled for even very brief per...