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Tag: "fuels" at biology news

Special Imaging Study Shows Failing Hearts Are 'Energy Starved'

... adenosine triphosphate (ATP) is the chemical that fuels heart contractions and that creatine kinase (CK) is the enzyme for one of the sources of ATP, we believe this is the first time someone has actually measured the flux of ATP produced by CK reaction in the beating human heart.?/p> Specifically, Bo...

Growth in biomass could put US on road to energy independence

...ase in ethanol production would see transportation fuels from biomass increase from 0.5 percent of U.S. consumption in 2001 to 4 percent in 2010, 10 percent in 2020 and 20 percent in 2030. In fact, depending on several factors, biomass could supply 15 percent of the nation's energy by 2030. Meanwhile, bio...

Human Cells Filmed Instantly Messaging for First Time

...ase in ethanol production would see transportation fuels from biomass increase from 0.5 percent of U.S. consumption in 2001 to 4 percent in 2010, 10 percent in 2020 and 20 percent in 2030. In fact, depending on several factors, biomass could supply 15 percent of the nation's energy by 2030. Meanwhile, bio...

Grizzlies set to invade high Arctic?

...ortherly sighting of a grizzly bear. The discovery fuels mounting evidence that Canada's High Arctic is no longer the sole preserve of the polar bear -- Nanuk is having to make room for its southern cousin. The evidence of the barren ground grizzly bear (Ursus arctos) was discovered on Melville Island, an...

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

...ying the mix of wood, charcoal and petroleum-based fuels used in households and improving the sustainabilit...tion in Africa would be to transition from biomass fuels to petroleum-based fossil fuels such as kerosene and liquid propane gas, the authors noted, which co...

MERIS monitoring tracks planetary photosynthesis levels

... perspective on vegetation growth. Forget fossil fuels and nuclear plants: on a global scale solar power is the dominant source of energy. Across land and sea, our world's plant life uses the process called photosynthesis to convert incoming sunlight into chemical energy, along the way producing all the ...

World-first technology enables study of ancient bacteria

... contains more carbon than all conventional fossil fuels and, therefore, a potentially enormous energy source. However, we know little about gas hydrates as they melt during recovery due to the fall in pressure. Professor R. John Parkes, of the School of Earth, Ocean and Planetary Sciences at Cardiff Univ...

Ethanol and biodiesel from crops not worth the energy

...road, because you use more energy to produce these fuels than you get out from the combustion of these products." Although Pimentel advocates the use of burning biomass to produce thermal energy (to heat homes, for example), he deplores the use of biomass for liquid fuel. "The government spends more than ...

Using the genomic shortcut to predict bacterial behavior

...road, because you use more energy to produce these fuels than you get out from the combustion of these products." Although Pimentel advocates the use of burning biomass to produce thermal energy (to heat homes, for example), he deplores the use of biomass for liquid fuel. "The government spends more than ...

Lactic acid not athlete's poison, but an energy source - if you know how to use it

...aerobic metabolism, used to burn lactate and other fuels in the body's tissues. Experiments with dead frogs in the 1920s seemed to show that lactate build-up eventually causes muscles to stop working. But Brooks in the 1980s and '90s showed that in living, breathing animals, the lactate moves out of muscl...

Carbon cycle was already disrupted millions of years ago

... as a consequence of the large-scale use of fossil fuels in the industrial era. This has apparently brought about a stronger relative increase in the light carbon isotope 12C. Due to this the ratio of the stable carbon isotopes 13C/12C has show a clearly measurable decrease of 0.1%. However in the Jurassic...

Biofuels can replace about 30 percent of fuel needs with significant research and policy effort

...flict-related supply interruptions, other types of fuels and technologies are needed to help pick up the sl...like a petroleum refinery, which produces multiple fuels and products from petroleum. The group based its recommendations on research studies, including stu...

Salmonella bacteria use RNA to assess and adjust magnesium levels

...nes and reactants in an energy-making process that fuels most cells. "Magnesium ions are essential to the stability of several different critical processes and structures in the cell, so there has to be a fairly intricate set of regulators to maintain consistent levels of it," says senior investigator Ed...

Ocean acidification threatens cold-water coral ecosystems

...stems." Only a decrease in the burning of fossil fuels is likely to slow this trend, say Guinotte and colleagues. ...

Research highlights how bacteria produce energy

...be used to create electricity, produce alternative fuels like ethanol and even boost the output of existing oil wells, according to research being presented this week at the 106th General Meeting of the (ASM) American Society for Microbiology in Orlando, Florida. "Microbial fuel cells show promise for con...

Science captures the essence of fruit

...ant on increasingly expensive and polluting fossil fuels for energy. What's more, chemical synthesis can never truly recreate nature; the flavour or fragrance will typically be slightly different to that found naturally in fruits and flowers. "Extraction is expensive and produces only limited quantities ...

Pollutant haze heats the Arctic

...-burning power plants and smelters and from fossil fuels burned by automobiles and other sources in cities. The Arctic haze, noted by explorers more than 200 years ago, resembles that seen during winter inversions in the Salt Lake City area. Both areas are desert-like, and pollution is trapped when warme...

K-Staters design and build a low-cost remote sensing tool for environmental studies

...aid. "Battery power eliminates emissions and messy fuels that could compromise the data collection systems and greatly reduces vibration." According to Schinstock, the remote sensing tool will meet a need shared by thousands of environmental scientists worldwide. For just a few thousand dollars, researche...

Producing bio-ethanol from agricultural waste a step closer

...search for alternatives to the current, oil-based, fuels is the focus of great interest around the world. One of the most attractive alternatives is bio-ethanol - alcohol produced from agricultural crops. At present, bio-ethanol is only made from sugars derived from corncobs, sugar beets, grain and sugarca...

UCSD study reveals how plants respond to elevated carbon dioxide

...sions of carbon dioxide from the burning of fossil fuels is that the elevated carbon dioxide will stimulate plants to grow faster. The assumption is that plants will take up excess carbon dioxide to produce carbohydrates--their stored energy source. However, studies have shown that, contrary to expectati...

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