Spaniards choose stable jobs over ones related to their training
2010-09-28
"If you study, you are more likely to get a stable job, even if it doesn't have anything to do with your training". This is the thinking of workers living in Spain, according to a research study by the Pompeu Fabra University (UPF), which studied the level of over-education in Spain, Italy and France, and the relationship between this and temporary work.
"This can be explained by the high levels of employment insecurity in Spain in comparison with other European countries", Luis Ortiz, author of the study and a researcher at the UPF, tells SINC.
The study, which has ...
Novel mechanism discovered for communication between proteins that cause 'cell suicide'
2010-09-28
A recent study undertaken by investigators at five research centres, amongst which is the CSIC-University of the Basque Country Biophysics Unit, provides new clues for the understanding of the 'cell suicide' process. The research was published in the latest issue of the prestigious Cell journal.
Our bodies daily eliminate in a controlled manner more than 100 million defective cells, by means of a procedure known as 'cell suicide' or apoptosis. This is a highly complicated process, any imbalances thus arising causing serious diseases, prominent amongst which is cancer. ...
Red light regulates nectar secretion
2010-09-28
Flowering plants produce nectar to attract insect pollinators. Some plant species, such as Lima bean, also secrete nectar from so-called extrafloral nectaries to attract ants which in turn fend off herbivores. Scientists of the Max Planck Institute in Jena, Germany, have discovered that the production of extrafloral nectar is light dependent. They have shown that the plants are able not only to distinguish between day and night, but also to adapt their nectar secretion to current light conditions by using a special photoreceptor, the phytochrome. Phytochrome probably influences ...
Surgery found effective for patients with aggressive prostate cancer
2010-09-28
ROCHESTER, Minn. -- In one of the first studies to focus exclusively on the outcomes after treatment for patients with high-risk prostate cancer,(http://www.mayoclinic.org/prostate-cancer/) researchers have found that surgery provides high survival rates. Collaborating researchers at Mayo Clinic and Fox Chase Cancer Center (http://www.fccc.edu/) in Philadelphia discovered that patients with the most aggressive forms of prostate cancer who had radical prostatectomy procedures had a 10-year cancer-specific survival rate of 92 percent and an overall survival rate of 77 percent.
The ...
Computer model shows US vulnerable to MDR-TB epidemic
2010-09-28
While the U.S. has made great progress in the prevention and treatment of tuberculosis, the nation has become more susceptible to potential epidemics of multidrug-resistant tuberculosis (MDR-TB), according a study led by Johns Hopkins researchers. Computer simulations show that as TB prevalence falls, the risk for more extensive MDR-TB increases. In addition, the simulation also showed that higher detection of TB cases without proper treatment of cases also increased risk. The study findings are published in the September 22 edition of the journal PLoS ONE. An interactive ...
Study shows patient-specific vaccines for metastatic melanoma may induce durable complete regression
2010-09-28
Newport Beach, CA – September 27, 2010 – Hoag Memorial Hospital Presbyterian recently announced encouraging clinical study results for patient-specific vaccine therapy to treat metastatic melanoma. The study is ongoing, but the report concludes that patient-specific vaccines can sometimes induce durable complete regression of progressing soft-tissue melanoma metastases, as demonstrated in one particular patient who participated in the trial.
The study report, entitled: "Durable Complete Response of Refractory, Progressing, Metastatic Melanoma after Treatment with a ...
Diving deeper into the gene pool
2010-09-28
About ten years ago, the discovery of microRNAs ― tiny cellular molecules that regulate our genetic code ― unlocked a world of scientific possibilities, including a deeper understanding of human disease. One new analytical technology is "deep sequencing," which gives scientists the ability to discover invaluable information about human diseases at a genetic level. Now, Tel Aviv University researchers have developed the cutting-edge technology to better analyze these results.
The software, called miRNAkey, was developed by Roy Ronen as part of a team of researchers ...
Elevated nitrogen and phosphorus still widespread in much of the nation's streams and groundwater
2010-09-28
Elevated concentrations of nitrogen and phosphorus, nutrients that can negatively impact aquatic ecosystems and human health, have remained the same or increased in many streams and aquifers across the Nation since the early 1990's, according to a new national study by the U.S. Geological Survey.
"This USGS report provides the most comprehensive national-scale assessment to date of nitrogen and phosphorus in our streams and groundwater," said Marcia McNutt, USGS Director. "For years we have known that these same nutrients in high concentrations have resulted in 'dead ...
Tile drainage directly related to nitrate loss
2010-09-28
URBANA – Tile drainage in the Mississippi Basin is one of the great advances of the 19th and 20th centuries, allowing highly productive agriculture in what was once land too wet to farm. In fact, installation of new tile systems continues every year, because it leads to increased crop yields. But a recent study shows that the most heavily tile-drained areas of North America are also the largest contributing source of nitrate to the Gulf of Mexico, leading to seasonal hypoxia. In the summer of 2010 this dead zone in the Gulf spanned over 7,000 square miles.
Scientists ...
Urban gardeners beware: There may be lead in your soil and food
2010-09-28
INDIANAPOLIS – Not since victory gardens helped World War II era Americans on the home front survive food shortages have urban gardens been as necessary and popular as they are today. With more food production in cities, the safety of the produce grown there becomes increasingly important.
As city dwellers across the country are harvesting fruits and vegetables for family consumption and planning ahead for the next planting season, geochemist Gabriel Filippelli, Ph.D., professor of earth sciences at the School of Science at Indiana University-Purdue University Indianapolis, ...
A shot to the heart: Nanoneedle delivers quantum dots to cell nucleus
2010-09-28
CHAMPAIGN, Ill. — Getting an inside look at the center of a cell can be as easy as a needle prick, thanks to University of Illinois researchers who have developed a tiny needle to deliver a shot right to a cell's nucleus.
Understanding the processes inside the nucleus of a cell, which houses DNA and is the site for transcribing genes, could lead to greater comprehension of genetics and the factors that regulate expression. Scientists have used proteins or dyes to track activity in the nucleus, but those can be large and tend to be sensitive to light, making them hard ...
Study: Electric cars hold greater promise for reducing emissions and lowering US oil imports
2010-09-28
Electric cars hold greater promise for reducing emissions and lowering U.S. oil imports than a national renewable portfolio standard, according to research conducted by Rice University's Baker Institute for Public Policy.
This assessment is among several contained in a new major policy study the Baker Institute Energy Forum will release at a Sept. 27-28 conference titled "Energy Market Consequences of an Emerging U.S. Carbon Management Policy." The study comprises several academic working papers on a variety of topics, such as carbon pricing, the wind industry, global ...
How injured nerves grow themselves back
2010-09-28
Unlike nerves of the spinal cord, the peripheral nerves that connect our limbs and organs to the central nervous system have an astonishing ability to regenerate themselves after injury. Now, a new report in the October 1st issue of Cell, a Cell Press publication, offers new insight into how that healing process works.
"We know a lot about how various cell types differentiate during development, but after a serious injury like an amputation, nerves must re-grow," said Allison Lloyd of University College London. "They need a new mechanism to do that because the developmental ...
Rain or shine, Sandia researchers find new ways to forecast large photovoltaic power plant output
2010-09-28
ALBUQUERQUE, N.M. – Sandia National Laboratories researchers have developed a new system to monitor how clouds affect large-scale solar photovoltaic (PV) power plants. By observing cloud shape, size and movement, the system provides a way for utility companies to predict and prepare for fluctuations in power output due to changes in weather. The resulting models will provide utility companies with valuable data to assess potential power plant locations, ramp rates and power output.
Sandia researchers' work is currently focused at the 1.2-megawatt La Ola Solar Farm on ...
New guideline finds no evidence for a popular back procedure
2010-09-28
Rosemont, Ill. – As a patient safety best practice and endorsement of evidence-based medicine, the American Academy of Orthopaedic Surgeons (AAOS) Board of Directors approved and released a clinical practice guideline, which found a strong recommendation against a popular procedure called vertebroplasty as a way to treat fractures in the spine. Clinical practice guidelines are one avenue the Academy uses to ensure that patients receive high quality care.
Vertebroplasty is a surgical procedure developed to reduce or eliminate the pain associated with compression fractures ...
Sugary sports drinks mistakenly associated with being healthy, say UTHealth researchers
2010-09-28
HOUSTON (Sept. 27, 2010) – Children who practice healthy lifestyle habits such as eating fruits and vegetables and engaging in physical activity may be negatively impacting their health because they tend to consume large amounts of flavored and sports beverages containing sugar, according to research at The Michael & Susan Dell Center for Healthy Living at The University of Texas Health Science Center at Houston (UTHealth).
"Children and parents associate these drinks with a healthy lifestyle despite their increased amount of sugar and lack of nutritional value," said ...
Onconova Therapeutics presents new data demonstrating radioprotection by Ex-RAD at RRS annual meeting
2010-09-28
Newtown, PA, September 27, 2010 – Onconova Therapeutics, Inc. is presenting new data in five posters and an oral presentation this week summarizing several studies with the company's radioprotectant Ex-RAD® at the 56th Annual Meeting of the Radiation Research Society (RRS), September 25-29 in Maui, Hawaii. In vivo studies show that Ex-RAD®, upon oral administration, produced a significant increase in survival versus placebo-treated groups in mice exposed to lethal whole body irradiation (WBI), for both prophylactic pre-treatment and mitigation post-treatment. ...
'Gold' fish thrive, cancers die
2010-09-28
Rice University physicist Dmitri Lapotko has demonstrated that plasmonic nanobubbles, generated around gold nanoparticles with a laser pulse, can detect and destroy cancer cells in vivo by creating tiny, shiny vapor bubbles that reveal the cells and selectively explode them.
A paper in the October print edition of the journal Biomaterials details the effect of plasmonic nanobubble theranostics on zebra fish implanted with live human prostate cancer cells, demonstrating the guided ablation of cancer cells in a living organism without damaging the host.
Lapotko and his ...
Family, culture affect whether intelligence leads to education
2010-09-28
Intelligence isn't the only thing that predicts how much education people get; family, culture, and other factors are important, too. A new study published in Psychological Science, a journal of the Association for Psychological Science, compares identical and fraternal twins in Minnesota and Sweden to explore how genetic and environmental factors involved in educational differ in countries with different educational systems. Family background can get an education even for people of low intelligence, the authors conclude—but helps much more in Minnesota, than in Sweden.
The ...
Right or left? Brain stimulation can change which hand you favor
2010-09-28
BERKELEY — Each time we perform a simple task, like pushing an elevator button or reaching for a cup of coffee, the brain races to decide whether the left or right hand will do the job. But the left hand is more likely to win if a certain region of the brain receives magnetic stimulation, according to new research from the University of California, Berkeley.
UC Berkeley researchers applied transcranial magnetic stimulation (TMS) to the posterior parietal cortex region of the brain in 33 right-handed volunteers and found that stimulating the left side spurred an increase ...
Pan-STARRS discovers its first potentially hazardous asteroid
2010-09-28
The Panoramic Survey Telescope & Rapid Response System (Pan-STARRS) PS1 telescope has discovered an asteroid that will come within 4 million miles of Earth in mid-October. The object is about 150 feet in diameter and was discovered in images acquired on September 16, when it was about 20 million miles away.
It is the first "potentially hazardous object" (PHO) to be discovered by the Pan-STARRS survey and has been given the designation "2010 ST3."
"Although this particular object won't hit Earth in the immediate future, its discovery shows that Pan-STARRS is now the ...
Wider statin use could be cost-effective preventive measure, Stanford study finds
2010-09-28
STANFORD, Calif. - A new analysis suggests that broader statin use among adult patients may be a cost-effective way to prevent heart attack and stroke. The Stanford University School of Medicine study also found that using a popular test - a screening for high sensitivity C-reactive protein, or CRP - to identify patients who may benefit from statin therapy would be cost-effective, but only under certain scenarios.
"If statins are really as safe and effective as they appear to be, broadening the indications for statin therapy would be an effective and cost-effective strategy," ...
Mayo collaboration finds source of breast drug side effect
2010-09-28
ROCHESTER, Minn. -- Mayo Clinic researchers and their international colleagues have discovered genetic variants that lead to severe arthritis for a subset of women when taking aromatase inhibitors to treat their breast cancer. This serious side effect is so painful that many women halt their lifesaving medication. The findings appear today in the online issue of Journal of Clinical Oncology.
"Many women stop taking aromatase inhibitors due to the accompanying joint pain," says James Ingle, M.D., Mayo Clinic oncologist and senior author of the study. "We used the latest ...
No link between genetic ancestry, asthma response in African-Americans
2010-09-28
DETROIT ¬¬– Genetic ancestry has no discernible influence on how African American patients with asthma respond to medication, according to a Henry Ford Hospital study.
Researchers found that improved lung function in patients after taking inhaled steroids was related to a series of baseline breathing function measures, not genetic ancestry. The study is published online at the Journal of Allergy & Clinical Immunology, http://www.aaaai.org/media/jaci/
Advances in genetics have led to the development of ancestry markers spread across the human genome, which allow genetic ...
Semiconductor could turn heat into computing power
2010-09-28
COLUMBUS, Ohio – Computers might one day recycle part of their own waste heat, using a material being studied by researchers at Ohio State University.
The material is a semiconductor called gallium manganese arsenide. In the early online edition of Nature Materials, researchers describe the detection of an effect that converts heat into a quantum mechanical phenomenon – known as spin – in a semiconductor.
Once developed, the effect could enable integrated circuits that run on heat, rather than electricity.
This research merges two cutting-edge technologies: thermo-electricity ...
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