Un equipo de investigadores de la Universidad de Barcelona (UB) y del Instituto Español de Oceanografía (IEO) ha descrito una nueva especie de Osedax, un tipo de invertebrado marino que se alimenta de huesos, al que se ha denominado Osedax deceptionensis.Esta nueva especie, junto con la especie......

Dr. David Pollock has a simple message for fellow hypertension researchers: Think endothelin. Fuente : http://www.eurekalert.org/pub_releases/2013-09/mco...

The cyclic wobble of the Earth on its axis controls the production of a nutrient essential to the health of the ocean, according to a new study. The discovery of factors that control this nutrient, known as "fixed" nitrogen, gives researchers insight into how the ocean regulates its own...

The solar system is crowded with small objects like asteroids and comets. Most have stable orbits which keep them out of harm’s way, but a small proportion of them are in orbits that risk them colliding with planets. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/I...

In synthetic chemistry, making the best possible use of the needed ingredients is key to optimizing high-quality production at the lowest possible cost. The element rhodium is a powerful catalyst — a driver of chemical reactions — but is also one of the rarest and most expensive. In addition to its...

In a few days, a balloon-borne telescope sensitive to the polarization of high-energy “hard” X-rays will ascend to the edge of the atmosphere above Fort Sumner, N.M. Once aloft, the telescope will stare at black holes, neutron stars and other exotic astronomical objects that shine brightly in the...

Physicists have discovered that simple methods can result in surprising and environmentally friendly high-tech outcomes during their experiments with spider silk and carbon nanotubes. Spider silk coated with nanotubes can act as a humidity sensor, a strain sensor, an actuator (a device that acts as...

Before there was life on Earth, there were molecules. A primordial soup. At some point a few specialized molecules began replicating. This self-replication, scientists agree, kick-started a biochemical process that would lead to the first organisms. But exactly how that happened -- how those...

The solar system is crowded with small objects like asteroids and comets. Most have stable orbits which keep them out of harm’s way, but a small proportion of them are in orbits that risk them colliding with planets. The giant planet Jupiter -- a big target with tremendous gravitational attraction...

A clinical study of healthy adult volunteers who consented to be infected with the 2009 H1N1 influenza virus under carefully controlled conditions has provided researchers with concrete information about the minimum dose of virus needed to produce mild-to-moderate illness. Fuente :...

In the first study to closely examine the polyunsaturated fatty acid intake among US children under the age of five, researchers have found what might be a troubling deficit in the diet of many youngsters. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/F...

After a journey of almost ten years, the Rosetta mission has just a few months left to wait before beginning its rendezvous with a time capsule. Comet 67P/Churymov-Gerasimenko is a dirty snowball of ice and dust that preserves material from the formation of the Solar System 4.5 billion years ago....

Aram Chaos, the lumpy, bumpy floor of an ancient impact crater on Mars, formed as a result of catastrophic melting and outflow of a buried ice lake. A new study combines observations from satellite photos of the 280 kilometer wide and four kilometer deep crater plus models of the ice melting...

Researchers review available evidence that links orange juice with cancer chemoprevention, including the putative mechanisms involved in the process, the potential toxicity of orange juice, and the available data in terms of evidence-based medicine.   Fuente :...

Believed to be eradicated from the United States in 2000, measles have been brought into the country and can infect those who are not vaccinated. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/8...

In the hunt for a better treatment for macular degeneration, studies using mice and a class of drugs known as MDM2 inhibitors proved highly effective at regressing the abnormal blood vessels responsible for the vision loss associated with the disease. Fuente :...

Aram Chaos, the lumpy, bumpy floor of an ancient impact crater on Mars, formed as a result of catastrophic melting and outflow of a buried ice lake. A new study combines observations from satellite photos of the 280 kilometre wide and four kilometre deep crater plus models of the ice melting...

After a journey of almost ten years, the Rosetta mission has just a few months left to wait before beginning its rendezvous with a time capsule. Comet 67P/Churymov-Gerasimenko is a dirty snowball of ice and dust that preserves material from the formation of the Solar System 4.5 billion years ago....

Changes in surface brightness on Titan observed over four years by NASA’s Cassini spacecraft have added to evidence that cryovolcanism is active on Saturn’s largest Moon. Anezina Solomonidou has presented results at the European Planetary Science Congress (EPSC) 2013 in London. The authors compared...

26/09/2013, Ron Dembo (Zerofootprint) e Michael Renner (World Watch Institute): la nostra impronta ecologica e lo stato del nostro mondo. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Using colloidal lead sulfide nanocrystal quantum dot substances, researchers have achieved the highest recorded open-circuit voltages for quantum dot solar cells to date. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/9...

Even though Danish students have equal access to education, their choice of studies is still influenced by social class. Young people from working class backgrounds are motivated by studies with a clear job profile and high income, while prestige and studies with a strong identity appeal to young...

Results of a study show that vaccination with GM2/KLH-QS-21 does not benefit patients with stage II melanoma. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/5...

Computers will someday soon automatically provide short video digests of a day in your life, your family vacation or an eight-hour police patrol, say computer scientists. Researchers are working to develop tools to help make sense of the vast quantities of video that are going to be produced by...

It may be time to let software, rather than hardware, manage the high-speed on-chip memory banks known as "caches." Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/O...

Investigadores españoles han descubierto una nueva especie de un tipo de invertebrado marino que se alimenta de huesos, al que se ha denominado Osedax deceptionensis. El O. deceptionensis, descubierto a 20 m, es el primero encontrado a tan poca profundidad. Fuente :...

La presión arterial debe ser más alta por el día que por la noche, puesto que lo contrario se asocia a un mayor riesgo cardiovascular. Ahora, un amplio estudio realizado con pacientes españoles demuestra que el ejercicio físico regular contribuye al descenso de la presión arterial en horas...

Una investigación en la que ha participado el Museo Nacional de Ciencias Naturales del CSIC ha evaluado las consecuencias a corto y largo plazo de la primera comida ingerida por la lagartija de turbera. Los autores han demostrado que un hecho tan sencillo como es la primera comida tras el...

Suecia, Alemania, Irlanda y Luxemburgo son los Estados miembros de la UE que sacan mayor partido de la innovación, según un nuevo indicador propuesto por la Comisión Europea. El nuevo parámetro mide hasta qué punto las ideas procedentes de sectores innovadores pueden plasmarse en el mercado y...