Study finds Viagra increases release of key reproductive hormone
Researchers at the University of Wisconsin-Madison report this month that sildenafil increases the amount of oxytocin released by stimulation of the posterior pituitary gland, a small structure directly underneath the brain that regulates hormone levels in response to neural signals. view more (2007-08-27)
Are walruses right-handed?
Walruses are 'right-flippered', according to research published this week in BMC Ecology. The first study of walrus feeding behaviour in the wild showed that the animals preferentially use their right flipper to remove sediment from buried food. This is the first time that any aquatic animal has been shown to prefer using one flipper to the other... view more... (2003-10-17)
Organised wind chaos on Jupiter
Jupiter, the largest planet of our solar system, offers a fascinating view. A number of Bands of different coloured clouds seem to embrace the planet like belts. view more (2005-11-10)
Using magnetism to turn drugs on and off
Many medical conditions, such as chronic pain, cancer and diabetes, require medications that cannot be taken orally, but must be dosed intermittently, on an as-needed basis, over a long period of time. view more (2009-09-21)
Money Doesn't Grow on Trees, But Gasoline Might
Researchers have made a breakthrough in the development of "green gasoline," a liquid identical to standard gasoline yet created from sustainable biomass sources like switchgrass and poplar trees. view more (2008-04-08)
Invading black holes explain cosmic flashes
Black holes are invading stars, providing a radical explanation to bright flashes in the universe that are one of the biggest mysteries in astronomy today. view more (2009-09-21)
Quieter jet engines â€" and kinder to the environment
The jet airliners of the future will be significantly quieter and more environmentally friendly with the help of engineers at The University of Nottingham. view more (2005-02-23)
UK approval procedures will drive research overseas
Approval procedures for UK research will "accelerate the migration of clinical studies to other parts of the world," warn researchers in a letter to this week's BMJ. view more (2005-04-06)
Light-induced hormone surge points to benefits of light therapy
A report in the November Cell Metabolism reveals powerful effects of light on the adrenal glands, a finding that might explain the broad benefits of bright light therapy for a variety of conditions, including sleep and depressive disorders, according to researchers. view more (2005-11-09)
From Sugar to Gasoline
Following independent paths of investigation, two research teams are announcing this month that they have successfully converted sugar-potentially derived from agricultural waste and non-food plants-into gasoline, diesel, jet fuel and a range of other valuable chemicals. view more (2008-09-22)
The quiet explosion
A European-led team of astronomers are providing hints that a recent supernova may not be as normal as initially thought. Instead, the star that exploded is now understood to have collapsed into a black hole, producing a weak jet, typical of much more violent events, the so-called gamma-ray bursts. view more (2008-07-25)
Uncovering the mechanisms of lightning varieties
The mechanism behind different types of lightning may now be understood, thanks to a combination of direct observation and computer modeling reported by a team of researchers from New Mexico Tech and Penn State. view more (2008-03-31)
Gamma-ray birth cries suggest massive magnetic engines
Several times a week, astronomers detect the violent death cry of a massive star — an extraordinarily energetic release of gamma rays that takes place in just a matter of seconds to minutes, called a gamma-ray burst (GRB). view more (2007-03-09)
Fake diamonds help jet engines take the heat
Engineers are developing a technology to coat jet engine turbine blades with zirconium dioxide -- commonly called zirconia, the stuff of synthetic diamonds -- to combat high-temperature corrosion. The zirconia chemically converts sand and other corrosive particles that build up on the blade into a new, protective outer coating. In effect, the... view more... (2008-03-18)
Scripps research scientists model 3D structures of proteins that control human clock
In an Early Edition issue of The Proceedings of the National Academy of Sciences (PNAS) on April 9, 2009, the researchers report that they have been able to determine the molecular structure of a plant photolyase protein that is surprisingly similar to two cryptochrome proteins that control the "master clock" in humans and other mammals. view more (2009-04-13)
U-M discovery about biological clocks overturns long-held theory
University of Michigan mathematicians and their British colleagues say they have identified the signal that the brain sends to the rest of the body to control biological rhythms, a finding that overturns a long-held theory about our internal clock. view more (2009-10-09)
New Cassini images show Northern Lights of Saturn
New images of Saturn obtained by a University of Colorado at Boulder-led team on June 21 using an instrument on the Cassini spacecraft show auroral emissions at its poles similar to Earth's Northern Lights. view more (2005-08-08)
Greenhouse Gases - Nothing To Blame For?
In the nearest future we may witness global cooling in spite of increasing concentration of greenhouse gases in the atmosphere. That can happen, if the following hypothesis is correct: not the growth of greenhouse gases concentration provokes temperature to rise, but vice versa. It is generally believed nowadays that greenhouse gases are... view more... (2004-07-30)
Wistar scientists find key to keeping killer T cells in prime shape for fighting infection, cancer
Like tuning a violin to produce strong, elegant notes, researchers at The Wistar Institute have found multiple receptors on the outside of the body's killer immune system cells which they believe can be selectively targeted to keep the cells in superb infection- and disease-fighting condition. view more (2008-12-01)
New Scripps Research study finds T-cell multiplication unexpectedly delayed after infection
In a surprising outcome that overturns the conventional wisdom on the body's immune response to infection, scientists at The Scripps Research Institute have shown that T cells do not begin proliferation until up to three days after infection. view more (2008-04-11)
|
|
