Key gene found responsible for chronic inflammation, accelerated aging and cancer
2012-05-28
NEW YORK, May 24, 2012 – Researchers at NYU School of Medicine have, for the first time, identified a single gene that simultaneously controls inflammation, accelerated aging and cancer.
"This was certainly an unexpected finding," said principal investigator Robert J. Schneider, PhD, the Albert Sabin Professor of Molecular Pathogenesis, associate director for translational research and co-director of the Breast Cancer Program at NYU Langone Medical Center. "It is rather uncommon for one gene to have two very different and very significant functions that tie together ...
LiDAR technology reveals faults near Lake Tahoe
2012-05-28
CARNELIAN BAY, Calif. — Results of a new U.S. Geological Survey study conclude that faults west of Lake Tahoe, Calif., referred to as the Tahoe-Sierra frontal fault zone, pose a substantial increase in the seismic hazard assessment for the Lake Tahoe region of California and Nevada, and could potentially generate earthquakes with magnitudes ranging from 6.3 to 6.9. A close association of landslide deposits and active faults also suggests that there is an earthquake-induced landslide hazard along the steep fault-formed range front west of Lake Tahoe.
Using a new high-resolution ...
Device may inject a variety of drugs without using needles
2012-05-28
MIT researchers have engineered a device that delivers a tiny, high-pressure jet of medicine through the skin without the use of a hypodermic needle. The device can be programmed to deliver a range of doses to various depths — an improvement over similar jet-injection systems that are now commercially available.
The researchers say that among other benefits, the technology may help reduce the potential for needle-stick injuries; the Centers for Disease Control and Prevention estimates that hospital-based health care workers accidentally prick themselves with needles ...
Positive words: The glue to social interaction
2012-05-28
Scientists at ETH Zurich have studied the use of language, finding that words with a positive emotional content are more frequently used in written communication. This result supports the theory that social relations are enhanced by a positive bias in human communication. The study by David Garcia and his colleagues from the Chair of Systems Design is published in the first issue of the new SpringerOpen journal EPJ Data Science, and is freely available to the general public as an Open Access article.
Previous studies focused on word lengths and frequency. They demonstrated ...
University of Florida physicists set new record for graphene solar cell efficiency
2012-05-28
GAINESVILLE, Fla. — Doping may be a no-no for athletes, but researchers in the University of Florida's physics department say it was key in getting unprecedented power conversion efficiency from a new graphene solar cell created in their lab.
Graphene solar cells are one of industry's great hopes for cheaper, durable solar power cells in the future. But previous attempts to use graphene, a single-atom-thick honeycomb lattice of carbon atoms, in solar cells have only managed power conversion efficiencies ranging up to 2.9 percent. The UF team was able to achieve a record ...
Childhood cancer scars survivors later in life
2012-05-28
CHICAGO--- Scars left behind by childhood cancer treatments are more than skin-deep. The increased risk of disfigurement and persistent hair loss caused by childhood cancer and treatment are associated with emotional distress and reduced quality of life in adulthood, according to a new study led by a Northwestern Medicine advanced practice nurse, Karen Kinahan, and based on data from the Childhood Cancer Survivor Study (CCSS).
The largest study of its kind, published May 21 in the Journal of Clinical Oncology, compared scarring, disfigurement and persistent hair loss ...
'Metamaterials,' quantum dots show promise for new technologies
2012-05-28
WEST LAFAYETTE, Ind. - Researchers are edging toward the creation of new optical technologies using "nanostructured metamaterials" capable of ultra-efficient transmission of light, with potential applications including advanced solar cells and quantum computing.
The metamaterial - layers of silver and titanium oxide and tiny components called quantum dots - dramatically changes the properties of light. The light becomes "hyperbolic," which increases the output of light from the quantum dots.
Such materials could find applications in solar cells, light emitting diodes ...
NASA's TRMM satellite sees some heavy rainfall in Typhoon Sanvu
2012-05-28
Tropical Storm Sanvu strengthened overnight as forecast and is now a Typhoon in the western North Pacific Ocean. NASA's Tropical Rainfall Measuring Mission (TRMM) satellite observed that most of the rainfall is falling in the eastern half of the storm.
The TRMM satellite measured the rainfall from Typhoon Sanvu on May 24, 2012.TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) data shows that Sanvu's heaviest rainfall was occurring in its northeastern quadrant where some intense storms were dropping rainfall at a rate greater than 50mm/hr (~2 inches/hr). TRMM ...
NASA satellites feed forecasters information as Bud becomes a hurricane
2012-05-28
Bud has now become the first hurricane of the eastern Pacific Hurricane Season, as NASA visible and infrared satellite imagery revealed an organized structure of spiraling thunderstorms around the eye. Watches and warnings are already in effect for southwestern Mexico as Bud nears.
The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument onboard NASA's Aqua satellite captured a visible image of Hurricane Bud off the southwestern coast of Mexico on May 23 at 2035 UTC (1:35 PDT) before it reached hurricane status. The image showed the outer fringes of Bud's ...
Cyber exercise partners help you go the distance
2012-05-28
EAST LANSING, Mich. — A new study testing the benefits of a virtual exercise partner shows the presence of a moderately more capable cycling partner can significantly boost the motivation – by as much as 100 percent – to stick to an exercise program.
The research out of Michigan State University's Department of Kinesiology shows women taking part in cycling exercises exercised twice as long when working with a virtual partner, results the authors said can be used to help people meet physical activity recommendations.
The work by Brandon Irwin and colleagues is published ...
Stanford psychologists examine how race affects juvenile sentencing
2012-05-28
When it comes to holding children accountable for crimes they commit, race matters.
According to a new study by Stanford psychologists, if people imagine a juvenile offender to be black, they are more willing to hand down harsher sentences to all juveniles.
"These results highlight the fragility of protections for juveniles when race is in play," said Aneeta Rattan, lead author of the study, which appears this week in the journal PLoS ONE.
Historically, the courts have protected juveniles from the most severe sentences. It has been recognized that children are different ...
A nanoclutch for nanobots
2012-05-28
Chinese researchers have designed and tested simulations of a "nanoclutch," a speed regulation tool for nanomotors. The nanoclutch consists of two carbon nanotubes (CNTs), one inside the other, separated by a film of water. Electrowetting forces control the friction between the water and the inner and outer walls of the CNTs. When the two tubes are electrically charged, the water confined between them can transmit the torque from the inner tube to the outer tube, and the device is said to be in the engaged state. When the CNTs are uncharged, the device is in the disengaged ...
Sound increases the efficiency of boiling
2012-05-28
Scientists at the Georgia Institute of Technology achieved a 17-percent increase in boiling efficiency by using an acoustic field to enhance heat transfer. The acoustic field does this by efficiently removing vapor bubbles from the heated surface and suppressing the formation of an insulating vapor film. As reported in the American Institute of Physics' (AIP) journal the Physics of Fluids, bubble removal was enhanced because the acoustic field induces capillary waves on the bubble, causing its contact line to contract and detach the bubble from the surface. The mechanisms ...
Slip-and-slide power generators
2012-05-28
Researchers from Vestfold University College in Norway have created a simple, efficient energy harvesting device that uses the motion of a single droplet to generate electrical power. The new technology could be used as a power source for low-power portable devices, and would be especially suitable for harvesting energy from low frequency sources such as human body motion, write the authors in a paper accepted to the American Institute of Physics' (AIP) journal Applied Physics Letters. The harvester produces power when an electrically conductive droplet (mercury or an ionic ...
Tiny planet-finding mirrors borrow from Webb Telescope playbook
2012-05-28
NASA's next flagship mission — the James Webb Space Telescope — will carry the largest primary mirror ever deployed. This segmented behemoth will unfold to 21.3 feet in diameter once the observatory reaches its orbit in 2018.
A team of scientists at NASA's Goddard Space Flight Center in Greenbelt, Md., now is developing an instrument that would image and characterize planets beyond the solar system possibly from a high-altitude balloon has borrowed a page from the Webb telescope's playbook. It has created an infinitely smaller segmented mirror that currently measures ...
Scientists evaluate different antimicrobial metals for use in water filters
2012-05-28
Porous ceramic water filters are often coated with colloidal silver, which prevents the growth of microbes trapped in the micro- and nano-scale pores of the filter. Other metals such as copper and zinc have also been shown to exhibit anti-microbial activity. Researchers from Princeton University in New Jersey used atomic force microscopy (AFM) measurements to study the adhesion interaction between Escherichia coli (E. coli) bacteria and colloidal silver, silver nanoparticles, and copper nanoparticles, as well as the interactions of the bacteria and the three different types ...
'Personality genes' may help account for longevity
2012-05-28
VIDEO:
Nir Barzilai, M.D., discusses his new research on how personality traits like being outgoing, optimistic, easygoing, and enjoying laughter as well as staying engaged in activities may also be part...
Click here for more information.
May 24, 2012 – (BRONX, NY) – "It's in their genes" is a common refrain from scientists when asked about factors that allow centenarians to reach age 100 and beyond. Up until now, research has focused on genetic variations that offer a physiological ...
Asteroid nudged by sunlight: Most precise measurement of Yarkovsky effect
2012-05-28
Scientists on NASA's asteroid sample return mission, Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx), have measured the orbit of their destination asteroid, 1999 RQ36, with such accuracy they were able to directly measure the drift resulting from a subtle but important force called the Yarkovsky effect – the slight push created when the asteroid absorbs sunlight and re-emits that energy as heat.
"The new orbit for the half-kilometer (one-third mile) diameter 1999 RQ36 is the most precise asteroid orbit ever obtained," ...
Routine care for Crohn's disease in children should include measurement of bone age
2012-05-28
Measuring bone age should be a standard practice of care for pediatric patients with Crohn's disease, in order to properly interpret growth status and improve treatment, according to a new study from the UCSF Benioff Children's Hospital.
"Not only is bone age helpful in predicting a child's remaining growth potential, our study demonstrates that bone age is necessary to correctly interpret a patient's growth status in pediatric Crohn's disease," said lead study researcher Neera Gupta, MD, MAS, a pediatric gastroenterologist at the UCSF Benioff Children's Hospital.
Impaired ...
Ben-Gurion U. researchers successfully test solar desalination system for arid land agriculture
2012-05-28
NEW YORK, May 25, 2012 – Ben-Gurion University of the Negev (BGU) researchers have created a man-made oasis in the desert with the successful application of a solar-powered desalination system that provides water for irrigation in arid regions. The project was made possible with support from American Associates, Ben-Gurion University of the Negev (AABGU).
The solar-powered system uses nanofiltration membranes to treat the local brackish (saline) water, resulting in high-quality desalinated irrigation water. The results of the Josefowitz Oasis Project indicate that irrigation ...
OSIRIS-REx scientists measure Yarkovsky effect
2012-05-28
Scientists with the University of Arizona-led asteroid sample return mission OSIRIS-REx have measured the orbit of their destination asteroid, 1999 RQ36, with such accuracy they were able to directly determine the drift resulting from a subtle but important force called the Yarkovsky effect – the slight push created when the asteroid absorbs sunlight and re-emits that energy as heat.
The new orbit for the half-kilometer (one-third mile) diameter 1999 RQ36 is the most precise asteroid orbit ever obtained, OSIRIS-REx team member Steven Chesley of the NASA Jet Propulsion ...
Cedars-Sinai physician definitively links irritable bowel syndrome and bacteria in gut
2012-05-28
LOS ANGELES (May 25, 2012) – An overgrowth of bacteria in the gut has been definitively linked to Irritable Bowel Syndrome in the results of a new Cedars-Sinai study which used cultures from the small intestine. This is the first study to use this "gold standard" method of connecting bacteria to the cause of the disease that affects an estimated 30 million people in the United States.
Previous studies have indicated that bacteria play a role in the disease, including breath tests detecting methane – a byproduct of bacterial fermentation in the gut. This study was the ...
From stem cell to brain cell – new technique mimics the brain
2012-05-28
A new technique that converts stem cells into brain cells has been developed by researchers at Lund University. The method is simpler, quicker and safer than previous research has shown and opens the doors to a shorter route to clinical cell transplants.
By adding two different molecules, the researchers have discovered a surprisingly simple way of starting the stem cells' journey to become finished brain cells. The process mimics the brain's natural development by releasing signals that are part of the normal development process. Experiments in animal models have shown ...
Like curry? New biological role identified for compound used in ancient medicine
2012-05-28
CORVALLIS, Ore. – Scientists have just identified a new reason why some curry dishes, made with spices humans have used for thousands of years, might be good for you.
New research at Oregon State University has discovered that curcumin, a compound found in the cooking spice turmeric, can cause a modest but measurable increase in levels of a protein that's known to be important in the "innate" immune system, helping to prevent infection in humans and other animals.
This cathelicidin antimicrobial peptide, or CAMP, is part of what helps our immune system fight off various ...
Phone contact with nurses linked with better outcomes for women with gestational diabetes
2012-05-28
OAKLAND, Calif., May 25, 2012 – Among women with gestational diabetes mellitus, referral to a telephone-based nurse management program was associated with lower risk of high baby birth weight and increased postpartum glucose testing, according to Kaiser Permanente researchers.
Investigators for the Kaiser Permanente Northern California Division of Research examined the associations between referral to telephone-based nurse consultation and outcomes in 12 Kaiser Permanente medical centers with variation in the percent of patients referred to telephonic nurse management. ...
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