Las ‘lágrimas de San Lorenzo’ o Perseidas de este año podrán disfrutarse mejor la noche del 12 al 13 de agosto. La Luna facilitará su observación, ya que se ocultará en el momento en el que empiecen a caer las ‘estrellas fugaces’. Fuente : http://www.agenciasinc.es/Noticias/Llegan-las-Pers...

Captar en el cerebro de una persona lo que está pensando, un tema muy tratado en la ciencia-ficción, no es posible de manera detallada, pero sí para nociones muy simples y también, como ahora corrobora un nuevo avance científico, para las emociones.Por vez primera, se ha conseguido identificar... Fuente :...

Ciertas diferencias entre algunos meteoritos marcianos y las rocas examinadas por un robot de la NASA en la superficie del Planeta Rojo se pueden explicar si Marte tuvo una atmósfera rica en oxígeno hace 4.000 millones de años, una época muy anterior a la aparición, en cantidades significativas,......

En un proyecto de colaboración internacional, un equipo de científicos ha registrado los lugares del mundo donde suele concentrarse de forma más significativa el plancton oceánico, así como sus niveles de concentración y las épocas del año en que ello ocurre. Todos estos datos han sido... Fuente :...

La fiebre tifoidea es una de las enfermedades con constancia histórica que más tiempo llevan afectando a la humanidad, pero la causa exacta de que sea tan letal ha permanecido oculta tras un telón de misterio a lo largo de los siglos. Esta situación puede que cambie a partir de ahora, ya que en......

Como los humanos cuando sufren el jet lag después de un vuelo, las plantas “resetean” sus relojes biológicos para ajustarlos a los cambios de luz del día o de las estaciones. Ahora, investigadores del Instituto Leloir en Argentina identificaron genes en una planta modelo cuya actividad es clave......

Investigadores del Consejo Superior de Investigaciones Científicas (CSIC), en España, en colaboración con el Instituto Geológico y Minero de España, han reconstruido el proceso de explotación de una de las grandes minas de oro romanas de Galicia, la de Os Biocos, situada en el municipio de San......

Estudios independientes sobre dos nuevos fósiles de animales de la época del Jurásico de China (especímenes de entre 160 y 165 millones de años) han dado lugar a reconstrucciones contradictorias sobre el origen de los mamíferos.Ambos ejemplares, presentados en el último número de la revista......

Entrega del podcast Quilo de Ciencia, realizado por Jorge Laborda (catedrático de Bioquímica y Biología Molecular de la Universidad de Castilla-La Mancha), en Ciencia para Escuchar, que recomendamos por su interés. El primer ser humano que observó un ritmo circadiano (del latín circa,... Fuente :...

An investigational malaria vaccine has been found to be safe, to generate an immune system response, and to offer protection against malaria infection in healthy adults, according to the results of an early-stage clinical trial published Aug. 8 in the journal Science. Fuente :...

Periodic flooding in Texas -- one the most flood-prone states in the nation -- cannot be firmly linked to climate change due to numerous dams and other man-made structures introduced over the years, according to a University of Iowa study published in the August 2013 issue of the Journal of the American Water Resources...

A small group of immune-regulating molecules, when overproduced even moderately, can trigger the blood cancers known as lymphomas, according to a new study led by scientists from the Scripps Research Institute. The new study also identified the major biological pathways through which these...

New research by the Harvard Stem Cell Institute's Alex Meissner, published online as a letter in the journal Nature, describes the dynamics of DNA methylation across a wide range of human cell types. Chemically, these marks are the addition of a methyl group -- one carbon atom surrounded by three hydrogen atoms -- anywhere a...

A team of Berkeley Lab and UC Berkeley researchers have developed a method for accurately predicting the ability of MTV-MOFs (multivariate metal organic frameworks) to scrub carbon dioxide from the exhaust gases of fossil fuel power plants. Fuente : http://www.eurekalert.org/pub_releases/2013-08/dbn...

Astronomers using NASA's Hubble Space Telescope have solved a 40-year mystery on the origin of the Magellanic Stream, a long ribbon of gas stretching nearly halfway around our Milky Way galaxy. Fuente : http://www.eurekalert.org/pub_releases/2013-08/nsf...

NOAA scientists report the discovery of the first known colony of table coral off of the south shore of O'ahu in Hawai'i. Fuente : http://www.eurekalert.org/pub_releases/2013-08/nh-...

If the science behind a drug shows it to be rationally targeted at a cancer-causing genetic mutation, and if early clinical trials show the drug is safe and happens to be especially effective, should the drug be held to the same time-consuming and expensive testing standards of traditional...

Gemini Observatory's latest instrument, a powerful infrared camera and spectrograph at Gemini South, reveals its potential in a series of striking on-sky commissioning images released today. Fuente : http://www.eurekalert.org/pub_releases/2013-08/go-...

A faith-based prisoner re-entry program in Minnesota has saved an estimated $3 million by reducing recidivism, according to a Baylor University study published in the International Journal of Criminology and Sociology. Fuente : http://www.eurekalert.org/pub_releases/2013-08/bu-...

High pressures and temperatures cause materials to exhibit unusual properties, some of which can be special. Understanding such new properties is important for developing new materials for desired industrial uses and also for understanding the interior of Earth, where everything is hot and...

People experiencing sudden cardiac arrest at exercise facilities have a higher chance of survival than at other indoor locations, likely due to early CPR and access to an automated external defibrillator. The findings underscore the importance of having AEDs in places where people exert themselves...

Research on biochemical processes is making it clear that cognitive decline with age is a natural part of life, and scientists are tracking the problem down to highly specific components of the brain. Virtually everyone loses memory-making and cognitive abilities as they age. But of considerable...

Genomic sequencing experts have partnered with pharmacologists to reveal a striking mutational signature of upper urinary tract cancers caused by aristolochic acid, a plant compound contained in herbal remedies used for thousands of years to treat a variety of ailments such as arthritis, gout and...

An experimental drug designed to block the advance of type 1 diabetes in its earliest stages has proven strikingly effective over two years in about half of the patients who participated in the phase 2 clinical trial. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/a...

One of the most basic and intensively studied processes in biology —- one which has been detailed in biology textbooks for decades —- has gained a new level of understanding, thanks to the application of simple math to a problem that scientists never before thought could benefit from mathematics....

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

Un equipo de científicos internacionales ha comprobado que el ácido aristolóquico, un compuesto presente en muchas plantas medicinales chinas, produce daños en el ADN y cáncer. Los investigadores han descubierto que el componente ocasiona tumores del tracto urinario superior e hígado y que es un...

Although librarians adopted Internet technology quickly, they initially dismissed search engines, which duplicated tasks they considered integral to their field. Their eventual embrace of the technology required a reinvention of their occupational identity, according to a study by University of...

Researchers have taken the furthest look back through time yet -- 100 years to 300,000 years after the Big Bang -- and found tantalizing new hints of clues as to what might have happened. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q...