To be published online Monday, Mar. 3, a special issue of the Journal of the American College of Radiology focuses on improving the safety of computed tomography exams through careful radiation dose optimization. The issue was guest edited by Rebecca Smith-Bindman, M.D., from the University of California San Francisco and John...

A new article published in Arthritis Care & Research, a journal of the American College of Rheumatology, explores the risks associated with using herbal cannabis for medicinal purposes and advises healthcare providers to discourage rheumatology patients from using this drug as therapy. Fuente :...

Children's food allergies are gradually increasing, but they may be as much as doubling among black children. According to a study published in the March issue of Annals of Allergy, Asthma and Immunology, the scientific publication of the American College of Allergy, Asthma and Immunology, self-reported food allergy nearly...

The bark of the Amur cork tree has traveled a centuries-long road with the healing arts. Now it is being put through its paces by science in the fight against pancreatic cancer, with the potential to make inroads against several more. Fuente : http://www.eurekalert.org/pub_releases/2014-03/uot...

An Indiana University study found that elite college athletes often struggle to stay active in later years, facing limitations to their day-to-day activities in middle age that could be a result of injuries during their athletic career. Researchers knew that compared to non-athletes, college athletes experience more severe...

Black bears in Yosemite National Park and elsewhere are notorious for seeking out human food, even breaking into cars and cabins for it. A new study reveals just how much human food has contributed to the diets of Yosemite bears over the past century. Researchers estimated the proportion of human-derived food in bears' diets by...

A new study shows that the 1970s polynya within the Antarctic sea ice pack of the Weddell Sea may have been the last gasp of what was previously a more common feature of the Southern Ocean, and which is now suppressed due to the effects of climate change on ocean salinity. Fuente :...

Some children who outgrow one type of food allergy may then develop another type of allergy, more severe and more persistent, to the same food. The more severe allergy is eosinophilic esophagitis (EoE), which has been increasing in recent years. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/p...

A Cambridge-Maryland team follows up on a landmark domestic violence arrest experiment and finds that African-American victims who had partners arrested rather than warned were twice as likely to die young. Fuente : http://www.eurekalert.org/pub_releases/2014-03/uoc...

Some children who outgrow one type of food allergy may then develop another type of allergy, more severe and more persistent, to the same food. A new study by pediatric allergy experts suggests that health care providers and caregivers carefully monitor children with food allergies to recognize...

Researchers at the Institute of Photonic Sciences have invented nano-optical tweezers capable of trapping and moving an individual nano-object in three dimensions using only the force of light. Fuente : http://www.eurekalert.org/pub_releases/2014-03/iio...

A new methodology for rapidly measuring the level of antibiotic drug molecules in human blood serum has been developed, paving the way to applications within drug development and personalized medicine. Fuente : http://www.eurekalert.org/pub_releases/2014-03/ucl...

An international research team has discovered a potentially clean, low-cost way to convert carbon dioxide into methanol, a key ingredient in the production of plastics, adhesives and solvents, and a promising fuel for transportation. Scientists from Stanford, SLAC and the Technical University of...

Researchers at Columbia University have made a significant step toward visualizing small biomolecules inside living biological systems with minimum disturbance, a longstanding goal in the scientific community. In a study published March 2 in Nature Methods, assistant professor of chemistry Wei...

A new study led by researchers from McGill University suggests that the the 1970s polynya in the Antarctic sea ice pack of the Weddell Sea may have been the last gasp of what was previously a more common feature of the Southern Ocean, and which is now suppressed due to the effects of climate change...

An international team led by researchers at the Broad Institute and Massachusetts General Hospital has identified mutations in a gene that can reduce the risk of developing type 2 diabetes, even in people who have risk factors such as obesity and old age. Fuente :...

Scientists from CSHL demonstrate for the first time a way to observe how our experiences shape sensory information in awake animals. The team was able to measure the activity of a group of inhibitory neurons that links the odor-sensing area of the brain with brain areas responsible for thought and...

In an advance for HIV vaccine research, a scientific team has discovered how the immune system makes a powerful antibody that blocks HIV infection of cells by targeting a site on the virus called V1V2. Fuente : http://www.eurekalert.org/pub_releases/2014-03/nio...

Break-up of the supercontinent Gondwana about 130 Million years ago could have lead to a completely different shape of the African and South American continent with an ocean south of today's Sahara desert. Fuente : http://www.eurekalert.org/pub_releases/2014-03/ggp...

Neuroblastoma is one of the most common and lethal types of childhood cancers. In a paper published online today in OncoTarget, a researcher at the University of Texas Health Science Center at San Antonio unveils an improved screening technique that shows the important role of microRNAs in...

An essential weapon in the body's fight against infection has come into sharper view. Researchers have discovered the 3-D structure of an enzyme that cuts to ribbons the genetic material of viruses and helps defend against bacteria. The discovery of the structure of this enzyme, a first-responder...

Break-up of the supercontinent Gondwana about 130 Million years ago could have led to a completely different shape of the African and South American continent with an ocean south of today’s Sahara desert, as geoscientists have shown through the use of sophisticated plate tectonic and...

Combined use of iron oxide nanoparticles and an alternating magnetic field can induce local hyperthermia in tumors in a controlled and uniform manner. The results Induced anti-tumor immune response that reduced the risk of recurrence and metastasis. Standard cancer care involves surgery, but...

Los habitantes de la capital de Somalia temen por  su seguridad desde que el ejército dio de baja a cientos de soldados, pues muchos de ellos siguen armados. Jefes militares dijeron a comienzos de febrero que 700 soldados habían sido “relevados de sus responsabilidades” en el marco de una...

An observational study has found that prostate cancer patients who undergo robotic-assisted prostate surgery have fewer instances of cancer cells at the edge of their surgical specimen and less need for additional cancer treatments like hormone or radiation therapy than patients who have...

The true-color image above, from the Moderate Resolution Imaging Spectroradiometer on NASA's Aqua satellite, shows the mostly frozen state of the Great Lakes on Feb. 19. On that date, ice spanned 80.3 percent of the lakes. The ice reached an even greater extent on Feb. 13, when it covered about 88...

Three-dimensional imaging of two different mouse models of Apert Syndrome shows that cranial deformation begins before birth and continues, worsening with time, according to a team of researchers who studied mice to better understand and treat the disorder in humans. Fuente :...

A new study of Gulf War veterans found an association between poor sleep quality and reduced gray matter volume in the brain's frontal lobe, which helps control important processes such as working memory and executive function. "This study emphasizes the importance of seeking medical help if you...

Children who suffer from frequent nightmares or bouts of night terrors may be at an increased risk of psychotic experiences in adolescence, according to new research. shows that children reporting frequent nightmares before the age of 12 were three and a half times more likely to suffer from...