Científicos del Centro de Medicina Regenerativa de Barcelona (CMRB) y del Salk Institute de California (EE UU), liderados por Juan Carlos Izpisúa Belmonte, han descubierto un nuevo método que facilita el proceso de obtención de células madre a partir de células adultas humanas.Este hallazgo, que......

Investigadores del Instituto Vasco de Investigación y Desarrollo Agrario, Neiker-Tecnalia, han comprobado que el subproducto resultante de la gestión de residuos orgánicos puede tener un aprovechamiento óptimo para la fertilización de suelos destinados a maíz forrajero y trigo blando de invierno....

Artículo, del blog Psy’n'thesis, que recomendamos por su interés. Cuando pensamos en acontecimientos traumáticos, es habitual que se nos vengan a la cabeza accidentes de tráfico, personas expuestas a la violencia, actos terroristas o, incluso, la imagen de un veterano de guerra que no puede......

Research from the Regenstrief Institute and the Indiana University Center for Aging Research has found that many family caregivers of older adults with dementia are willing to consider stopping cancer screening of the elderly individual; they are also relieved when the older adult's physician brings it up. Fuente :...

A protein found in the membranes of ancient microorganisms that live in desert salt flats could offer a new way of using sunlight to generate environmentally friendly hydrogen fuel, according to a new study by researchers at the US Department of Energy's Argonne National Laboratory. Fuente :...

An international experiment with contributions from physicists at York University and the University of Toronto today announced a new breakthrough in understanding neutrinos -- nature's most elusive particles. Speaking at the European Physical Society meeting in Stockholm, Sweden, Michael Wilking of Canada's TRIUMF laboratory...

Researchers at the University of Minnesota have identified infection-fighting and inflammation-suppressing functions for a gene associated with human autoimmune disease. The discovery, centered on a gene known as PTPN22, could set into motion new treatment approaches for autoimmune diseases like lupus, rheumatoid arthritis and...

Nighttime heat waves -- events where the nighttime low is unusually hot for at least three days in a row -- are becoming more common in western Washington and Oregon. Fuente : http://www.eurekalert.org/pub_releases/2013-07/uow...

A gene related to neural tube defects in dogs has for the first time been identified by researchers at the University of California, Davis, and University of Iowa. The gene may be an important risk factor for human neural tube defects, including anencephaly and spina bifida. Fuente :...

Stem-cell researchers at UC San Francisco have found a key role for a protein called BMI1 that may help scientists direct the development of tissues to replace damaged organs in the human body. Fuente : http://www.eurekalert.org/pub_releases/2013-07/uoc...

The life-threatening MERS coronavirus that has emerged in the Middle East could spread faster and wider during two international mass gatherings involving millions of people in the next few months, according to researchers who describe the most likely pathways of international spread based upon worldwide patterns of air travel....

Most of the time, it takes decades of accumulating genetic errors for a tumor to develop. While this explains the general occurrence of cancer in adults, it leaves a gap in understanding of the cause of pediatric tumors. Fuente : http://www.eurekalert.org/pub_releases/2013-07/nch...

The European Space Agency/NASA Solar and Heliospheric Observatory, or SOHO, captured an image of a gigantic coronal hole hovering over the sun's north pole on July 18, 2013, at 9:06 a.m. EDT. Coronal holes are dark, low density regions of the sun's outermost atmosphere, the corona. They contain little solar material, have lower...

Gingivae represent a unique soft tissue that serves as a biological barrier to cover the oral cavity side of the maxilla and mandible. Recently, the gingivae were identified as containing mesenchymal stem cells (GMSCs). However, it is unknown whether the GMSCs are derived from cranial neural crest...

Researchers have developed a novel technique to affect mood through ultrasound vibrations applied to the brain. Their findings could potentially lead to new treatments for psychological and psychiatric disorders. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/v...

Biologists have worked out the details of a mechanism that leads undifferentiated blood stem cells to become macrophages -- immune cells that attack bacteria and other foreign pathogens. The process involves an unexpected cycle in which cell division slows, leading to an increased accumulation of a...

A visual notation is a graphical representation. It consists of graphical symbols, their definitions, and a visual grammar. Some examples of graphical symbols are: lines, surfaces, volumes, textual labels and spatial relationships. These elements are used to build the visual vocabulary of a...

If you squeeze a normal object in all directions, it shrinks in all directions. But a few strange materials will actually grow in one dimension when compressed. Chemists have now discovered a structure that takes this property to a new level, expanding more dramatically under pressure than any...

Social media has expanded to reach an unlikely new target: molecules. Scientists have created networks of molecular data similar to Facebook’s recently debuted graph search feature. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/a...

Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Un experimento sugiere que los grandes simios tienen memoria autobiográfica y no viven atrapados en el presente ||| Fuente : http://feedproxy.google.com/~r/materia/noticias/~3...

Hexagonal graphene "onion rings" are the product of growing two-dimensional carbon in a high-pressure, hydrogen-rich environment. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z...

A pair of new papers report measurements of the Martian atmosphere's composition by NASA's Curiosity rover, providing evidence about loss of much of Mars' original atmosphere. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/b...

Researchers have identified a genetic cause of severe obesity that, though rare, raises new questions about weight gain and energy use in the general obese population. The research involved genetic surveys of several groups of obese humans and experiments in mice. Fuente :...

Researchers identified two proteins in the inner ear, critical for hearing that cause hearing loss when damaged by genetic mutations. The findings from 30 years' research shows that the proteins encoded by the genes form channels that turn mechanical sound waves into electrical signals that talk to...

Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

El descubrimiento de un nuevo virus que se sitúa como el más grande del mundo, tanto en tamaño físico como en su genoma, cuestiona los límites del mundo viral. Los Pandoravirus, nombre propuesto para este nuevo género, infectan protistas, tienen forma ovoidal y son del tamaño de los eucariotas...

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Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...