News tagged with excess
Racial profiling, killings of arrestees by local police increase: study
Deadly police shootings, racial profiling and discriminatory law enforcement are once again in the forefront of national debate. Police killings of unarmed civilians in New Orleans and Seattle have generated local protests ...
Other Sciences / Social Sciences
Apr 17, 2012 |
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Ultrafast laser pulses shed light on elusive superconducting mechanism
An international team that includes University of British Columbia physicists has used ultra-fast laser pulses to identify the microscopic interactions that drive high-temperature superconductivity.
Mar 29, 2012 |
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Sex-deprived fruit flies drink more alcohol: New study could uncover answers for human addictions
Sexually deprived male fruit flies exhibit a pattern of behavior that seems ripped from the pages of a sad-sack Raymond Carver story: when female fruit flies reject their sexual advances, the males are driven ...
Mar 15, 2012 |
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'Artificial leaf' eyed as holy grail in energy research
Turbo-charging photosynthesis -- by which plants and bacteria turn sunlight into food and energy -- in an "artificial leaf" could yield a vast commercial power source, scientists said.
Technology / Energy & Green Tech
Feb 20, 2012 |
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Earth's energy budget remained out of balance despite unusually low solar activity
(PhysOrg.com) -- A new NASA study underscores the fact that greenhouse gases generated by human activity -- not changes in solar activity -- are the primary force driving global warming.
Space & Earth / Earth Sciences
Jan 30, 2012 |
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Solutions for a nitrogen-soaked world
Nitrogen is both an essential nutrient and a pollutant, a byproduct of fossil fuel combustion and a fertilizer that feeds billions, a benefit and a hazard, depending on form, location, and quantity. Agriculture, industry ...
Jan 17, 2012 |
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Acid rain poses a previously unrecognized threat to Great Lakes sugar maples
(PhysOrg.com) -- The number of sugar maples in Upper Great Lakes forests is likely to decline in coming decades, according to University of Michigan ecologists and their colleagues, due to a previously unrecognized ...
Jan 16, 2012 |
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Nitrogen fertilizers' impact on lawn soils
Nitrogen fertilizers from farm fields often end up in aquatic ecosystems, resulting in water quality problems, such as toxic algae and underwater 'dead zones'. There are concerns that fertilizers used on lawns may also contribute ...
Nov 04, 2011 |
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Study shows Alzheimer's disease-related peptides form toxic calcium channels in the plasma membrane
Alzheimer's disease is triggered by the inappropriate processing of amyloid precursor protein to generate excess amounts of short peptide fragments called A-beta. For many years, the neurodegeneration associated with Alzheimer's ...
Oct 24, 2011 |
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Researchers discover technique to improve solar cell technology
A multi-disciplinary team of scientists at the Naval Research Laboratory has discovered a way to tailor nanostructures that could result in low-cost, high efficiency solar cells. The research appears in the ...
Oct 12, 2011 |
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Mississippi mud: More water behind river's sediment rise
(PhysOrg.com) -- During the past several decades, upper Midwest state and local agencies have spent hundreds of millions of dollars on extraordinary conservation efforts to prevent the Upper Mississippi River ...
Sep 29, 2011 |
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Scientists lay out plans for efficient harvesting of solar energy
Solar power could be harvested more efficiently and transported over long distances using tiny molecular circuits, according to research inspired by new insights into natural photosynthesis.
Sep 23, 2011 |
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Controversial energy-generating system lacking credibility (w/ video)
(PhysOrg.com) -- It's been seven months since Italian physicists Andrea Rossi and Sergio Focardi publicly demonstrated a device that they claimed could generate large amounts of excess heat through some kind of low-energy ...
Aug 11, 2011 |
4 / 5 (29) |
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Researchers decipher the molecular basis of blue-green algae
Under normal conditions, cyanobacteria, also termed blue-green algae, build up energy reserves that allow them to survive under stress such as long periods of darkness. They do this by means of a molecular switch in an enzyme. ...
Aug 01, 2011 |
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NTT DoCoMo plans green-energy cellphone masts
Japan's largest mobile phone operator, NTT DoCoMo, plans to start powering its cellphone tower network with renewable energy such as solar, wind or biomass, the company said Friday.
Technology / Energy & Green Tech
Jul 08, 2011 |
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