Self-driving vehicles offer the promise of significant benefits, but raise several policy challenges, including the need to update insurance liability regulations and privacy concerns. Fuente : http://www.eurekalert.org/pub_releases/2014-01/rc-...

Mating and meiosis -- the specialized cell division that reduces the number of chromosomes in a cell -- are related, but in most yeasts they are regulated separately. Not so in Candida lusitaniae, where the two programs work in unison, according to a new study. Comparison with other species...

Considéré jusqu’à présent comme une source d’émissions de gaz à effet de serre, captant via les sols du bassin versant le CO2 fixé par la forêt tropicale pour le relarguer vers l’atmosphère, le fleuve Amazone révèle en fait un bilan carbone équilibré. En effet, une nouvelle étude montre que le CO2...

Le virus Chikungunya, récemment identifié dans les Antilles, vient d’être séquencé par une équipe marseillaise associant l’IRBA, l’IRD et Aix-Marseille Université Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Dans le cadre d’un consortium international, l'IRD, le CNRS, l’INRA-AgroParisTech , l'Institut agronomique néo-calédonien (IAC) et l'université de la Nouvelle-Calédonie (UNC) publient le 20 décembre 2013 dans la revue Science des résultats sur l’emblématique Amborella . Cet arbuste endémique de la...

Lejos de beneficiar, las dietas llamadas “milagro” perjudican la salud de personas desesperadas por deshacerse del sobrepeso. Incluso, si alguno de estos regímenes alimenticios se mantiene durante un lapso prolongado, los problemas pueden ser mayores, pues no es raro que se presente envejecimiento...

Mexico is considered one of the leading countries in papaya productions, however its crops are usually affected by the virus of the ringed spot, which leaves ring marks in the skin of the fruit and causes softening of the papaya, where fungi start to digest it. This is why the Center of Research...

Four ancient cockroach species in the Ectobius genus were recently discovered in the 49-million-year-old Green River Formation near Rifle, Colo., and it now appears that Ectobius may have originated in the New World. Fuente : http://www.eurekalert.org/pub_releases/2014-01/eso...

Last year's gigantic landslide at a Utah copper mine probably was the biggest nonvolcanic slide in North America's modern history, and included two rock avalanches that happened 90 minutes apart and surprisingly triggered 16 small earthquakes, University of Utah scientists discovered. Fuente :...

Mating and meiosis -- the specialized cell division that reduces the number of chromosomes in a cell -- are related, but in most yeasts they are regulated separately. Not so in Candida lusitaniae, where the two programs work in unison, according to a new study in Nature. Comparison with other...

Until recently, how supervolcanos become active remained a mystery. Geologists from ETH Zurich have now used synchrotron X-rays to demonstrate that the pressure generated through the difference in density between magma and the surrounding rock alone can be sufficient to cause one of these...

The discovery of a millisecond pulsar -- a superdense neutron star -- in a triple system with two white dwarfs gives astronomers the most precise tool yet for studying the gravitational three-body problem. In addition, the nature of the stars and their interactions may give an unprecedented clue...

Factors determining the frequency and magnitude of volcanic phenomena have been uncovered by an international team of researchers. Fuente : http://www.eurekalert.org/pub_releases/2014-01/uob...

Stable population trends are a prerequisite for species' range expansion, according to new research led by scientists at the University of York. Fuente : http://www.eurekalert.org/pub_releases/2014-01/uoy...

El cambio climático tiene diversas aristas, desde el punto de vista social, el Centro de Investigaciones y Estudios Superiores en Antropología Social (CIESAS) ha estudiado el comportamiento de grupos campesinos quienes se movilizan frente a la alteración del clima. Fuente :...

Las mujeres representan casi la mitad de los estudiantes en todos los niveles, pero al terminar los estudios e incorporarse a la fuerza laboral, el porcentaje disminuye. Con el fin de establecer sinergias para impulsar y evaluar políticas públicas que incidan en el bienestar de las mujeres y la...

A new study appearing in Annals of the Entomological Society of America examines storage techniques for the predator Podisus nigrispinus, a beneficial stink bug used to control other insects. Fuente : http://www.eurekalert.org/pub_releases/2014-01/eso...

A Duke scientist has reconstructed the most comprehensive family tree to date of the monkeys that arrived in South America 37 or more million years ago and their subsequent evolution. The research uncovered several patterns, suggesting, among other things, that sea level rise and the arrival of...

The first Monday after the holidays can be a depressing time for people coping with post-holiday letdown or depression triggered by short days called seasonal affective disorder (SAD). This year, First Monday will be especially blue, due to the added stress of the brutal cold in many parts of the...

Scientists couldn't find any visitors from another century, but they had a very interesting time trying. They selected search terms relating to two recent phenomena, Pope Francis and Comet ISON, and began looking for references to them before they were known to exist. Their work was exhaustive:...

New social networking research investigates how individuals use Facebook to maintain their friendships. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/f...

Researchers have found that dysfunction in a single gene in mice causes fasting hyperglycemia, one of the major symptoms of type 2 diabetes. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/I...

Researchers have found an easy way to modify the molecular structure of a polymer commonly used in solar cells. Their modification can increase solar cell efficiency by more than 30 percent. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/6...

New research finds that the Throne Room floor in the Bronze Age Palace of Nestor located in what is today Pylos, Greece, is an unusual example of artistic innovation for its time. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y...

A 100-million-year old piece of amber has been discovered which reveals the oldest evidence of sexual reproduction in a flowering plant -- a cluster of 18 tiny flowers from the Cretaceous Period -- with one of them in the process of making some new seeds for the next generation. Fuente :...

Many people can recall reading at least one cherished story that they say changed their life. Now researchers have detected what may be biological traces related to this feeling: Actual changes in the brain that linger, at least for a few days, after reading a novel. Their findings, that reading a...

Researchers use brute force supercomputing to identify dozens of platinum-group alloys that were previously unknown to science but could prove beneficial in a wide range of applications. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/O...

Un grupo con multimillonarias inversiones en Estados Unidos lanzó una campaña para exigir a  grandes grupos transnacionales, como las tiendas Walmart, la aerolínea Delta y la red hotelera Hyatt que sus filiales en todo el mundo dejen de facilitar el trabajo forzado y la trata de personas, entre otros abusos a los derechos...

Las lenguas electrónicas pueden convertirse en un aliado del agricultor vitivinícola para conocer con detalle el grado de maduración de la uva y mejorar la competitividad del sector. Así se deriva de un estudio desarrollado por investigadores de la Universitat Politècnica de València, en colaboración con Torre Oria. Las...