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Acute Sleep Deprivation Leads To Changes In Nighttime Urine
Our body's production of urine follows a circadian rhythm. During the day, we experience greater urinary frequency; at night, urine production declines, enabling us to get uninterrupted sleep. view more (2007-08-09)
Custom-sized microlenses
Optical components have joined the trend towards miniaturization. There have, however, been no methods available thus far to produce custom-sized glass lenses. A new process now enables the low-cost, high-volume manufacture of microlenses with extreme dimensions. view more (2004-08-27)
Sandia's Z machine exceeds two billion degrees Kelvin
Sandia's Z machine has produced plasmas that exceed temperatures of 2 billion degrees Kelvin - hotter than the interiors of stars. view more (2006-03-09)
New method for HIV testing holds promise for developing world
A new technique that detects the HIV virus early and monitors its development without requiring refrigeration may make AIDS testing more accessible in sub-Saharan Africa. view more (2009-07-22)
Scientists solve 30-year-old aurora borealis mystery
UCLA space scientists and colleagues have identified the mechanism that triggers substorms in space; wreaks havoc on satellites, power grids and communications systems; and leads to the explosive release of energy that causes the spectacular brightening of the aurora borealis, also known as the northern lights. view more (2008-07-25)
Humans may be losers if technological nature replaces the real thing
There are Web cams focused on falcons, ferrets and fish, virtual tours of the Grand Canyon and Yosemite, and robotic dogs, seals and even dinosaurs. But what about the real deal: observing animals in their natural habitat, hiking the John Muir Trail or a playing with a live pet? view more (2009-04-02)
Magnetic Storms And Earthquakes
For years scientists have been studying the impact of different geophysical fields on the earthquakes occurrence. It has been assumed that the fields, generated due to the solar activity, earth flows fluctuations, the Earth`s speed of rotation and even the launch of magnetohydrodynamic generators affect the strained state of the earth`s crust,... view more... (2002-03-21)
Who is the arch-criminal in the development of hepatopulmonary syndrome?
The hepatopulmonary syndrome (HPS) develops when an arterial oxygenation deficiency occurs due to intra-pulmonary vascular dilatations that are often associated with severe hepatic disease. HPS occurs in 15-20% of patients with liver cirrhosis undergoing evaluation for orthotopic liver transplantation. view more (2007-12-20)
Coffee Addicts At Reduced Risk Of Type 2 Diabetes? (p 1477)
High coffee consumption could be associated with a rduced risk of type 2 diabetes, suggest Dutch authors of a research letter in this week's issue of THE LANCET. Caffeine is known to reduce sensitivity to insulin (responsible for the metabolism of glucose), although other components of coffee such as magnesium and chlorogenic acid could offer some... view more... (2002-11-06)
Technique used commonly in physics finds application in neuroscience
o understand how brain cells release compounds (or transmitters) used when the cells communicate with each other, Vladimir Parpura, associate professor of neuroscience, and Umar Mohideen, professor of physics at UC Riverside, devised a new technique, used commonly in physics, that can be applied now to the study of a wide range of biological... view more... (2006-08-07)
Shire bioequivalence study results of SPD465, investigational drug for adults with ADHD
Shire plc (LSE: SHP, NASDAQ: SHPGY, TSX: SHQ) announced today that a single once-daily morning dose of the investigational amphetamine compound SPD465, extended release triple-bead mixed amphetamine salts, designed to reduce symptoms of Attention-Deficit/Hyperactivity Disorder (ADHD) in adults for up to 16 hours, was bioequivalent to a dose of... view more... (2006-11-17)
Link found between immune system and high plasma lipid levels
Researchers at the University of Chicago have found an unsuspected link between the immune system and high plasma lipid levels (cholesterol and triglycerides in the blood) in mice. The finding could lead to new ways to reduce the risk of heart disease by lowering elevated lipid levels. view more (2007-04-13)
Study uncovers significant functional differences of novel estrogen receptor
Because of these differences, this new estrogen receptor could become an important therapeutic target and may play a further signaling role in other estrogen target tissues, including uterus and prostate tissues. view more (2006-06-09)
St. Jude finds mechanism for faulty protein disposal
A discovery by St. Jude Children's Research Hospital scientists offers new insights into how myeloma cells dispose of defective or excess proteins and could lead to new cancer treatments. view more (2007-12-07)
US researchers find first conclusive evidence that lead is linked to male infertility
US fertility experts today (Thursday 6 February) published the first conclusive evidence that lead is linked to male infertility. A report in Europe's leading reproductive medicine journal Human Reproduction[1] concludes that exposure to lead damages sperm function and may be a contributory cause of unexplained male infertility.[2] The findings... view more... (2003-02-02)
Saturn's aurora - not as we thought! Comment from UK scientists
Results which combine data from the joint NASA/ESA/ASI Cassini Huygens space mission and the Hubble Space Telescope, published in Nature today (17th February 2005), reveal that Saturn's auroras, long thought to be a cross between those of Earth and Jupiter, are in fact different and may even be unique to Saturn. view more (2005-02-17)
Cluster and Double Star uncover more on bright aurorae
Cluster data has helped provide scientists with a new view of magnetospheric processes, challenging existing theories about magnetic substorms that cause aurorae and perturbations in GPS signals. view more (2007-09-12)
Einstein researchers discover gene mutations linked to longer lifespans
Mutations in genes governing an important cell-signaling pathway influence human longevity, scientists at the Albert Einstein College of Medicine of Yeshiva University have found. view more (2008-03-05)
LANL Roadrunner models nonlinear physics of high-power lasers
For years scientists have struggled with the difficult physics of inertial confinement fusion. This is the attempt to compress a target capsule containing isotopes of hydrogen with high-powered lasers to high enough pressure and temperature to initiate fusion burn. view more (2009-10-29)
Laser scientists take step towards making fusion energy a reality
Scientists from the UK and Japan may have taken us one step further to the reality of fusion energy with a new answer to an old problem. Research by Dr Ryosuke Kodama and his colleagues at Osaka University, Japan and the UK team published in Nature on Thursday 23 August details a new technique for using lasers to start the fusion reaction. The... view more... (2001-08-20)
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