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Tag: "gas" at biology news

Poplar trees redirect resources in response to simulated attack

...sed chamber. They then administered carbon dioxide gas "labeled" with radioactive carbon-11 to individual...the scientists detected in isoprene, a hydrocarbon gas that is a byproduct of sugar synthesis in the leaves. That research, reported in Plant, Cell & E...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

...fe levels, and that they then substantially reduce gas exchange to maintain the oxygen at these safe valu...ries of tubes that carry air directly to cells for gas exchange. Using a respirometer (an instrument for measuring respiration that consists of a chamber w...

New research indicates a 'troubled' greenhouse is brewing

...llion years, was a catastrophic release of natural gas from undersea ices and permafrost. "In a remarkable parallel to modern hydrocarbon pollution of the atmosphere, this natural methane oxidized to carbon dioxide and created a global greenhouse event," he explains. "The past methane outburst dwarfed e...

Scientists discover how fish evolved to float at different sea depths

...llows fishes to keep the swimbladder inflated with gas even at great water pressure in the depths of the ... has a closed swimbladder that is inflated through gas secretion even when they are in high water pressures. My aim was to find out how these systems came ...

LUCA technologies confirms real-time methane generation

...roduction to the ongoing farming of clean, natural gas an attractive consideration," said Robert Pfeiffer... partnerships with active Operators in the oil and gas industry and potentially on its own. If successfully developed, Luca believes this approach has the ...

Live fast, die young true for forests too

...earch. Atmospheric carbon dioxide, a heat-trapping gas implicated in climatic warming, increases as carbon storage in forests decreases, and decreases as carbon storage in forests increases. Information regarding such potential changes is therefore needed to reduce uncertainties in predicting future clim...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

...plants is that they can metabolize selenium into a gas called dimethyl selenide," said Terry. "This is so...nhance in our lab. Getting inorganic selenium into gas form will allow it to just dissipate harmlessly into the atmosphere. No other form of remediation ca...

Buying Time Through Hibernation on Demand

...ng animal," Roth said. "The cool thing about this gas we're using, hydrogen sulfide, is that it isn't something manufactured that we're taking down from a shelf ?it isn't 'better living through chemistry' ?it's simply an agent that all of us make in our bodies all the time to buffer our metabolic flexib...

U-M team recovers ancient whale in Egyptian desert

...ng animal," Roth said. "The cool thing about this gas we're using, hydrogen sulfide, is that it isn't something manufactured that we're taking down from a shelf ?it isn't 'better living through chemistry' ?it's simply an agent that all of us make in our bodies all the time to buffer our metabolic flexib...

NASA study finds snow melt causes large ocean plant blooms

...ous oxide is 310 times more potent as a greenhouse gas than carbon dioxide. Thus, as very large phytoplankton blooms deplete more oxygen from the water, the creation of nitrous oxide in the Arabian Sea could exacerbate climate change, Goes said. ...

Growth in biomass could put US on road to energy independence

Relief from soaring prices at the gas pump could come in the form of corncobs, cornstalk...il, a potential 10 percent reduction in greenhouse gas emissions and an improved rural economic picture. Current production of ethanol is about 3.4 billio...

Human Cells Filmed Instantly Messaging for First Time

Relief from soaring prices at the gas pump could come in the form of corncobs, cornstalk...il, a potential 10 percent reduction in greenhouse gas emissions and an improved rural economic picture. Current production of ethanol is about 3.4 billio...

Anammox bacteria produce nitrogen gas in oceans' snackbar

... of the global conversion of nutrients to nitrogen gas occurs in these areas. In 'The Proceedings of the ...nly partly succeed in fixing the released nitrogen gas to form new nutrients that can be fed into the nutrient cycle again. In the article in PNAS, resear...

Africa to take it on chin again with climate change

...g, partly consistent with the impact of greenhouse gas increases, is the main factor behind the Sahel's recent swing from drought to moist conditions, the researchers believe. "Changes in the Indian and Atlantic oceans are causing large regional effects in Africa, and these have substantial impacts on p...

NASA probe could reveal comet life, scientists claim

...ts outer layers, producing a crater and a plume of gas and dust. UK astronomers involved in monitoring the comet before, during and after the impact and interpreting the results include Cardiff University's Professor Chandra Wickramasinghe and Dr Max Wallis at the Cardiff Centre for Astrobiology. They w...

Grass makes environmentally friendly biofuel

...t less greenhouse gases than oil, coal and natural gas do. Furthermore, he says, grass is perennial, does not require fertilization and can be grown on marginal farmland. "Any mixture of grasses can be used, cut in mid- to late summer, left in the field to leach out minerals, then baled and pelleted. Dr...

Study of energy and health in Africa focuses spotlight on charcoal and forest management

...rategies to reduce mortality as well as greenhouse gas emissions from household fuel sources. They gather...ction would lead to severe increases in greenhouse gas emissions, they said, with over 15 billion tons of carbon released into the atmosphere by 2050. "Mo...

Amazon source of 5-year-old river breath

...are "breathing" far harder ?cycling the greenhouse gas carbon dioxide more quickly ?than anyone realized.... because they never dated the invisible greenhouse gas as it is literally exhaled by the river organisms." "River breath is much deeper and faster than an...

Deep sea algae connect ancient climate, carbon dioxide and vegetation

...ng of Earth's climate system under high greenhouse gas conditions." The findings were based on calibration of carbon-containing compounds produced by ancient sea surface algae that were recently isolated in deep sea drill cores. The data indicates that between 45 - 34 million years ago the atmospheric c...

Invasive parasite destroying fish species

...ng of Earth's climate system under high greenhouse gas conditions." The findings were based on calibration of carbon-containing compounds produced by ancient sea surface algae that were recently isolated in deep sea drill cores. The data indicates that between 45 - 34 million years ago the atmospheric c...

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