Gun violence in the United States can be substantially reduced if Congress expands requirements for background checks on retail gun sales to cover firearm transfers between private parties, a new report concludes. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/n...

El consumo de homeopatía no es inocuo y puede llegar a provocar la muerte. Un estudio ha recopilado todos los casos descritos de efectos secundarios causados por el uso de esta pseudomedicina ||| Fuente : http://esmateria.com/2013/02/20/el-uso-de-producto...

Los primeros datos sobre el impacto de un asteroide en Rusia, el mayor del último siglo, el pasado día 15 de febrero comienzan a estar claros. La ESA está evaluando cuidadosamente esta información, un aporte fundamental para el desarrollo del programa de la Agencia para la monito... Fuente :...

An international research team co-led by cancer prevention researcher Ulrike "Riki" Peters, Ph.D., M.P.H., and biostatistician Hsu Li, Ph.D., at Fred Hutchinson Cancer Research Center has identified variations in four genes that are linked to an increased risk of colorectal cancer. Peters and...

US veterans diagnosed with gastroesophageal reflux disease are frequently prescribed doses of proton pump inhibitors, such as omeprazole (commonly known by brand names such as Prilosec), that are much higher than recommended -- and they are kept on the drug far too long, according to a new...

Over the course of Feb. 19-20, 2013, scientists watched a giant sunspot form in under 48 hours. It has grown to over six Earth diameters across but its full extent is hard to judge since the spot lies on a sphere not a flat disk. Fuente : http://www.eurekalert.org/pub_releases/2013-02/nsf...

Eruptive events on the sun can be wildly different. Some come just with a solar flare, some with an additional ejection of solar material called a coronal mass ejection, and some with complex moving structures in association with changes in magnetic field lines that loop up into the sun's...

A new study from the Regenstrief Institute has measured the awareness, adoption and use of electronic medical record systems and health information exchange by hospital-based infection preventionists to report and share information critical to public health. The researchers found these...

Cyclone Haruna strengthened into a cyclone and quickly developed an eye that became apparent on visible and infrared imagery from NASA's Aqua satellite. NASA's TRMM satellite analyzed Haruna's heavy rainfall, and NASA and NOAA's Suomi NPP satellite captured a night-time image that verified the...

A male fairy-wren's low pitch song indicates body size, a new international study has shown. Fuente : http://www.eurekalert.org/pub_releases/2013-02/uom...

A study combining genetic data with brain imaging, designed to identify genes associated with the amyloid plaque deposits found in Alzheimer's disease patients, has not only identified the APOE gene -- long associated with development of Alzheimer's -- but has uncovered an association with a second...

In a method that is more efficient and inexpensive than current models, researchers at The University of Texas at Arlington are using carbon dioxide, copper oxide nanowires and simulated sunlight to create methanol. Fuente : http://www.eurekalert.org/pub_releases/2013-02/uot...

Gravity remains the dominant force on large astronomical scales, but when it comes to stars in young star clusters the dynamics in these crowded environments cannot be simply explained by the pull of gravity. Fuente : http://www.eurekalert.org/pub_releases/2013-02/tkf...

Gun violence in the United States can be substantially reduced if Congress expands requirements for background checks on retail gun sales to cover firearm transfers between private parties, a new report by the director of the UC Davis Violence Prevention Research Program concludes. Fuente :...

Workplace-based programs that include dietary advice coupled with behavioral counseling appear to be a promising approach for men and women with significant weight loss goals, based on the results of a pilot study conducted by researchers at Tufts University. Employees enrolled in the intervention arm of a randomized...

A University of Missouri researcher found that South African men and women viewed their health more positively when they began receiving their pensions, but their heightened sense of well-being faded over time. The researcher says her study might give researchers and policymakers in the United States an idea of how aging...

Scientists have identified a molecular signaling pathway that plays an important role in the development of fetal alcohol spectrum disorder. Fuente : http://www.eurekalert.org/pub_releases/2013-02/hms...

As part of an ongoing effort to improve commercial scale algae biofuel production, a group of scientists, led by crude oil producer Sapphire Energy Inc. today announced the completion of a collaborative study (published in PLOS ONE journal) which identified the morphology, ultrastructure, and life...

Although an intravenous fluid that paramedics in Japan often give to patients in cardiac arrest before they reach hospital may help restore circulation, it may also be linked to reduced survival with minimal neurological or physical damage one month later, according to a new study. Fuente :...

New findings suggest that along with amyloid deposits, white matter hyperintensities may be a second necessary factor for the development of Alzheimer's disease. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/P...

Male rat pups have more of a specific brain protein associated with language development than females, according to a new study. The study also found sex differences in the brain protein in a small group of children. The findings may shed light on sex differences in communication in animals and...

Understanding how and why diversification occurs is important for understanding why there are so many species on Earth. Researchers show that similar -- or even identical -- mutations can occur during diversification in completely separate populations of E. coli evolving in different environments...

Researchers have identified a biological marker in the immune system that -- beginning at about age 22 -- predicts our ability to fight off the common cold. The study found that the length of telomeres -- protective cap-like protein complexes at the ends of chromosomes -- predicts resistance to...

On Feb. 14, 2013, the shift crew in the CERN Control Centre extracted the beams from the Large Hadron Collider, bringing the machine's first three-year running period to a successful conclusion. The LHC's first run has seen major advances in physics, including the discovery of a new particle that...

During a chance encounter with what appears to be an unusually strong blast of solar wind at Saturn, NASA's Cassini spacecraft detected particles being accelerated to ultra-high energies. This is similar to the acceleration that takes place around distant supernovas. Fuente :...

An initial sequence of radar images of asteroid 2012 DA14 was obtained on the night of Feb. 15/16, 2013, by NASA scientists using the 230-foot (70-meter) Deep Space Network antenna at Goldstone, Calif. Each of the 72 frames required 320 seconds of data collection by the Goldstone radar. Fuente :...

Species facing widespread and rapid environmental changes can sometimes evolve quickly enough to dodge the extinction bullet. Scientists consider the genetic underpinnings of such an "evolutionary rescue." Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/T...

Chemists have developed a compound that holds much promise in the laboratory in fighting renal (kidney) cancer. Named TIR-199, the compound targets the "proteasome," a cellular complex in kidney cancer cells, similar to the way the drug bortezomib, approved by the Food and Drug Administration, targets the proteasome in multiple...

Scientists have developed a system for observing real-time brain activity in a live mouse. The device could prove useful in studying new treatments for neurodegenerative diseases, such as Alzheimer's. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/R...