News tagged with oxygen level
New bacterium forms intracellular minerals
A new species of photosynthetic bacterium has come to light: it is able to control the formation of minerals (calcium, magnesium, barium and strontium carbonates) within its own organism. Published in Science on Apr ...
May 11, 2012 |
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Power without the cord
Cell phones and flashlights operate by battery without trouble. Yet because of the limited lifespan, battery power is not a feasible option for many applications in the fi elds of medicine or test engineering, ...
Apr 02, 2012 |
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When dinosaurs roamed a fiery landscape
The dinosaurs of the Cretaceous may have faced an unexpected hazard: fire! In a paper published online today, researchers from Royal Holloway University of London and The Field Museum of Natural History in Chicago have shown ...
Other Sciences / Archaeology & Fossils
Mar 29, 2012 |
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Bubble-propelled microrockets could operate in the human stomach
(PhysOrg.com) -- Recently, researchers have been designing a wide variety of self-propelled micromotors, many of which operate using an oxygen-bubble propulsion mechanism that requires a high concentration ...
Jan 18, 2012 |
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Algae for your fuel tank: New process for producing biodiesel from microalgae oil
The available amount of fossil fuels is limited and their combustion in vehicle motors increases atmospheric carbon dioxide levels. The generation of fuels from biomass as an alternative is on the rise. In ...
Jan 10, 2012 |
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Scientists find microbes in lava tube living in conditions like those on Mars
(PhysOrg.com) -- A team of scientists from Oregon has collected microbes from ice within a lava tube in the Cascade Mountains and found that they thrive in cold, Mars-like conditions.
Space & Earth / Space Exploration
Dec 15, 2011 |
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Rise of atmospheric oxygen more complicated than previously thought
The appearance of oxygen in the Earth's atmosphere probably did not occur as a single event, but as a long series of starts and stops, according to an international team of researchers who investigated rock ...
Space & Earth / Earth Sciences
Dec 01, 2011 |
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Health check on the road
Safety in traffic depends on a number of factors. One decisive aspect is how fit the driver is. A research team at the Technische Universitaet Muenchen (TUM), in collaboration with researchers at the BMW Group, ...
Nov 03, 2011 |
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Breakthrough in the production of flood-tolerant crops
As countries such as Pakistan, Bangladesh, Vietnam and parts of the United States and United Kingdom have fallen victim to catastrophic flooding in recent years, tolerance of crops to partial or complete submergence ...
Oct 23, 2011 |
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Oxygen inactivates the enzyme function in three phases: study
Scientists from the Faculty of Biology and Biotechnology at the RUB have published a report in the Journal of Biological Chemistry explaining why enzymes used for the production of hydrogen are so sensitive to oxygen. In col ...
Oct 12, 2011 |
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Study shows humans still evolving
(PhysOrg.com) -- A new study published in the Proceedings of the National Academy of Sciences provides evidence of human evolution and rapid genetic changes suggesting that, contrary to modern claims, technological and cu ...
Oct 04, 2011 |
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Reefs recovered faster after mass extinction than first thought
Metazoan-dominated reefs only took 1.5 million years to recover after the largest species extinction 252 million years ago, an international research team including paleontologists from the University of Zurich ...
Space & Earth / Earth Sciences
Sep 30, 2011 |
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Airtight box and plant experiment ends in blinding headaches
(PhysOrg.com) -- Iain Stewart, a professor of geoscience at Plymouth University, spent the weekend carrying out an experiment in Cornwall at the Eden Project. Stewart was locked in an airtight chamber for 48 hours with nothing ...
Sep 19, 2011 |
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Scientists air new views on how oxygenation affects aquatic life
Recent work at Plymouth University on how animals breathe underwater suggests that decreases in water quality and oxygenation will have an even greater impact on the diversity of aquatic life than was previously thought.
Sep 16, 2011 |
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Cruising the Chesapeake for water and air quality
A NASA-led team of scientists took to the Chesapeake Bay this summer to study a diverse yet close-to-home ecosystem in a field campaign that will help the agency determine how to study ocean health and air ...
Space & Earth / Earth Sciences
Sep 09, 2011 |
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