Un nuevo compuesto incrementa la capacidad para correr de un grupo de ratones en un 50%, tanto en distancia como en tiempo ||| Fuente : http://feedproxy.google.com/~r/materia/noticias/~3...

A través de la transferencia de cuatro genes al interior de fibroblastos de ratón, un equipo de científicos ha conseguido producir células muy parecidas a las células madre hematopoyéticas, las cuales constituyen una población muy importante, capaz de producir millones de nuevas células... Fuente :...

Se ha presentado la revisión más detallada hasta la fecha de pterosaurios dentados del Periodo Cretácico de Inglaterra.Este estudio, realizado por los paleontólogos Taissa Rodrigues, de la Universidad Federal de Espírito Santo, y Alexander W. A. Kellner, del Museo Nacional de la Universidad......

Aunque a finales del siglo XX se mantenía que comer más de dos huevos a la semana aumentaba el colesterol, en los últimos años los expertos han ido desmintiendo este mito. Ahora, un nuevo estudio concluye que comer más huevos no se relaciona con un mayor colesterol plasmático en adolescentes,...

El consumo de alcohol constituye una problemática de gran relevancia en diferentes áreas ya que, además de afectar la salud individual, se relaciona con una multiplicidad de fenómenos contraproducentes para la sociedad. Conocer los factores que conducen al consumo y abuso de esta sustancia es......

Fuente : http://noticiasdelaciencia.com/not/7724//...

Biópolis, compañía biotecnológica, ha desarrollado un nuevo modelo de investigación in vivo para la identificación de ingredientes activos contra la obesidad. El desarrollo científico, llevado a cabo por el Departamento de Biotecnología Agroalimentaria de Biópolis, ha constatado que el modelo......

Los métodos de levitación suelen explotar principios ópticos, magnéticos o electrostáticos para generar la fuerza que se requiere para contrarrestar la gravedad y mantener en el aire partículas, en general micrométricas o con propiedades físicas especiales.Pero un equipo del centro ETH Zúrich......

Artículo, del blog Pirulo Cósmico, que recomendamos por su interés. El universo no es un entorno precisamente pacífico, aunque vivamos ajenos a los peligros que tiene. Junto a cometas, asteroides errantes, pedruscos que nos pasan rozando, explosiones de supernovas y demás, tenemos un arma......

Creating and promoting foods that contain natural inhibitors of unhealthy angiogenesis -- the formation of blood vessels that feed and promote disease, obesity and inflammation -- is the "new frontier in dietary health," according to a presentation at the 2013 Institute of Food Technologists Annual Meeting & Food Expo in...

Physicians and patients who are wary of addiction to pain medication and opioids may soon have a healthier and more natural alternative. A Duke University study revealed that a derivative of DHA (docosahexaenoic acid), a main ingredient of over-the-counter fish oil supplements, can sooth and prevent neuropathic pain caused by...

It's common knowledge that high school can be a cruel environment where attractive students are considered "popular," and unattractive kids often get bullied. And, while that type of petty behavior is expected to vanish with adulthood, new research proves it does not. Colleagues can be just as immature as classmates. Fuente :...

Poor sleep quality and quantity during pregnancy can disrupt normal immune processes and lead to lower birth weights and other complications, finds a University of Pittsburgh School of Medicine study published today in the journal Psychosomatic Medicine. Women with depression also are more likely than non-depressed women to...

UC Irvine microbiologists have learned how a probiotic bacterium used to treat irritable bowel syndrome can soothe gut bacterial infections caused by salmonella, paving the way for potential relief from foodborne illnesses that affect millions of people annually. Fuente : http://www.eurekalert.org/pub_releases/2013-07/uoc...

Archaeologists tunneling beneath the main temple of the ancient Maya city of El Perú-Waka' in northern Guatemala have discovered an intricately carved stone monument with hieroglyphic text detailing the exploits of a little-known sixth-century princess whose progeny prevailed in a bloody, back-and-forth struggle between two of...

A NASA engineer has achieved yet another milestone in his quest to advance an emerging super-black nanotechnology that promises to make spacecraft instruments more sensitive without enlarging their size. Fuente : http://www.eurekalert.org/pub_releases/2013-07/nsf...

We may be closer to predicting who is at risk for a heart attack, according to a recently published Spectrum Health study. Researchers with Spectrum Health's Frederik Meijer Heart & Vascular Institute used new imaging technology on patients being treated for heart attacks. Fuente :...

The Side-Out Foundation's breast cancer pilot study, led by the Translational Genomics Research Institute, Translational Drug Development and Scottsdale Healthcare, has shown that cancer patients do better when their treatment is guided by molecular profiling. Specifically, 52 percent of patients with advanced breast cancer...

Molecular biologists in the School of Medicine at The University of Texas Health Science Center San Antonio have found a novel way to fine-tune the activity of cells' protein-disposing machinery, with potentially cancer-fighting effects. Fuente : http://www.eurekalert.org/pub_releases/2013-07/uot...

A technology used by NASA to protect crews working around hazardous gases soon could be called on for a number of life-saving applications as well as the agency's new human spaceflight endeavors. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/B...

The National Oceanic and Atmospheric Administration's next generation of GOES satellites, beginning with GOES-R, will have the ability to take full-disk images of Earth at five-minute intervals. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/F...

In the summer of 2007, Tropical Storm Erin stumped meteorologists. Most tropical cyclones dissipate after making landfall, weakened by everything from friction and wind shear to loss of the ocean as a source of heat energy. Not Erin. The storm intensified as it tracked through Texas. Erin is an...

Los ensayos con animales, a pesar de sus ventajas, pueden estar sometidos a sesgos que afecten a su validez, como el no publicar los resultados negativos o elegir la metodología que más convenga. Investigadores de la Universidad de Deusto publican hoy un ‘metanálisis de metanálisis’ que demuestra...

A researcher cautions against too much weight early into pregnancy, which leads to larger, chubbier babies. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/7...

Scientists have identified a self-perpetuating signaling circuit inside connective tissue cells that allows these cells to form a front and a back and propel themselves in a particular direction over a long period of time. This propulsion is the same movement that tumor cells use to invade healthy...

Researchers have discovered the fossilized remains of an elasmosaur. A subgroup of the late Cretaceous plesiosaurs, the elasmosaurid plesiosaurs are recognized by their large body size and shape. This find is only the second elasmosaurid specimen containing more than one or two bones found in...

Researchers have unlocked some of the mysteries of West Nile virus outbreaks and shown that use of a mosquito vector-index rating system works well to identify the best time for early intervention. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/-...

Researchers have coaxed stem cells into forming networks of new blood vessels in the laboratory, then successfully transplanted them into mice. The stem cells are made by reprogramming ordinary cells, so the new technique could potentially be used to make blood vessels genetically matched to...

Environmental conditions have a stronger influence on the mix of microbes living in your body than does competition between species. Instead of excluding each other, microbes that fiercely compete for similar resources are more likely to cohabit the same individual. The findings are a step toward...