Researchers have used the popular anti-wrinkle agent Botox to discover a new and important role for a group of molecules that nerve cells use to quickly send messages. This novel role for the molecules, called SNARES, may be a missing piece that scientists have been searching for to fully understand how brain cells communicate...
Medical researchers have manipulated human stem cells into producing types of brain cells known to play important roles in neurodevelopmental disorders such as epilepsy, schizophrenia and autism. The new model cell system allows neuroscientists to investigate normal brain development, as well as to...
As part of a unique study that surveyed 181 middle school physical science teachers and nearly 10,000 students, researchers showed the science teachers were most successful when they could predict their students' wrong answers on standardized tests. Fuente :...
Los datos recogidos de varios tipos de sensores permitirían estimar congestiones y ofrecer vías alternativas en tiempo real. Los recortes amenazan con desmontar el equipo investigador tras cuatro años de trabajo ||| Fuente : http://feedproxy.google.com/~r/materia/noticias/~3...
La luz LED, que crece de forma exponencial tanto en la iluminación ambiente como en los dispositivos domésticos (móviles, televisión...), daña a las células de la retina, un tejido sensible en el fondo del ojo que nunca se regenera.La entrada La exposición continuada a la luz LED daña a la retina...
Un sistema de cuevas atrapó a decenas de mamíferos carnívoros en el yacimiento de Cerro de los Batallones hace nueve millones de años, situado en Torrejón de Velasco (Madrid), según un estudio que publica la revista Plos One.La entrada Un sistema de cuevas atrapó a decenas de animales en el...
En un decenio, 552.879 mujeres y 161.922 varones sufrirán una fractura osteoporótica en España. Un estudio que analiza el riesgo de la población a este respecto revela que la mayor parte de dichas fracturas se producirá a partir de los 70 años. Fuente :...
Progress in American scientific research and reform in American immigration law must go hand in hand, the American Society for Cell Biology declared today in a position paper that outlines four recommendations for modernizing US immigration policy. Fuente : http://www.eurekalert.org/pub_releases/2013-05/asf...
Researchers have discovered the mechanism behind one of the Ebola virus' most dangerous attributes: its ability to disarm the adaptive immune system. Fuente : http://www.eurekalert.org/pub_releases/2013-05/uot...
Boston University researchers have developed a new polymer that promises longer relief for osteoarthritis sufferers than current treatment. Fuente : http://www.eurekalert.org/pub_releases/2013-05/buc...
As barefoot and minimalist running become increasingly popular, a new University of Virginia study is looking at how muscles are affected by the transition from traditional footwear. Fuente : http://www.eurekalert.org/pub_releases/2013-05/uov...
NASA's Tropical Rainfall Measuring Mission or TRMM satellite passed over Cyclone Zane as it was approaching Queensland Australia's Cape York Peninsula and measured rainfall rates within the storm. TRMM data showed a disorganized storm with the strongest rain falling northwest of the center. Fuente :...
New research out of the Lillehei Heart Institute at the University of Minnesota shows that by turning on just a single gene, Mesp1, different cell types including the heart, blood and muscle can be created from stem cells. Fuente : http://www.eurekalert.org/pub_releases/2013-05/uom...
New Geology papers cover ancient iron oceans; the Antarctic and global climate/carbon-cycle feedbacks; evidence of catastrophic spillover from kilometer-deep bodies of water on Mars; the role of volcanic emissions in ozone depletion; "fingerprinting" San Andreas fault sandstone; a climax in Earth's mountain-building cycle; the...
Scientists from the Smithsonian and the University of Rhode Island have found unsuspected linkages between the oxidation state of iron in volcanic rocks and variations in the chemistry of the deep Earth. Not only do the trends run counter to predictions from recent decades of study, they belie a role for carbon circulating in...
A common cancer pathway causing tumor growth is now being targeted by a number of new cancer drugs and shows promising results. A team of researchers at Case Western Reserve University School of Medicine have developed a novel method to disrupt this growth signaling pathway, with findings that suggest a new treatment for...
The tick-borne Lone Star virus has been conclusively identified as part of a family of other tick-borne viruses called bunyaviruses, which often cause fever, respiratory problems and bleeding, according to new research led by scientists at UC San Francisco. Fuente : http://www.eurekalert.org/pub_releases/2013-05/uoc...
Scientists used off-the-shelf printing tools to create a functional ear that can "hear" radio frequencies far beyond the range of normal human capability. The researchers' primary purpose was to explore an efficient and versatile means to merge electronics with tissue. The scientists used 3-D...
In an effort to determine if conditions were ever right on Mars to sustain life, a team of scientists has examined a meteorite that formed on the Red Planet more than a billion years ago. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/C...
A forensic analysis of 17th-century human remains proves that survival cannibalism took place in historic Jamestown, Virginia. The findings answer a long-standing question among historians about the occurrence of cannibalism at Jamestown during the deadly winter of 1609-1610 known as the "starving...
Agricultural researchers are studying whether a naturally occurring soil bacterium, referred to as UD1023, can create an iron barrier in rice roots that reduces arsenic uptake. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/5...
Two studies reveal details about the genomic landscapes of acute myeloid leukemia and endometrial cancer. Both provide new insights into the molecular underpinnings of these cancers with the potential to improve treatment. These studies represent the sixth and seventh in a series of genomes of at...
An experimental drug has shown promise in treating influenza, preventing lung injury and death from the virus in preclinical studies, according to new research. The scientists found that a drug called Eritoran can protect mice from death after they have been infected with a lethal dose of influenza...
A study of adult civilians with PTSD (post-traumatic stress disorder) has shown that individuals with a history of childhood abuse have distinct, profound changes in gene activity patterns, compared to adults with PTSD but without a history of child abuse. Fuente :...
Three years after the Deepwater Horizon oil spill in the Gulf of Mexico, crude oil toxicity continues to sicken a sentinel Gulf Coast fish species, according to new findings. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/t...
An old, somewhat passé, trick used to purify protein samples based on their affinity for water has found new fans: materials scientists are using it to divvy up solutions of carbon nanotubes, separating the metallic nanotubes from semiconductors. They say it's a fast, easy and cheap way to produce...
As markets for miniature, hybrid machines known as MEMS grow and diversify, researchers have introduced a long-awaited measurement tool that will help growing numbers of device designers, manufacturers and customers to see eye to eye on eight dimensional and material property measurements that are...
Una mutación en la enzima caseína quinasa, que altera los patrones de sueño, también causa cambios en la actividad cerebral, lo que puede desencadenar procesos migrañosos. El hallazgo, publicado en la revista Science Traslational Medicine, podría ayudar en el tratamiento de estos intensos dolores de cabeza. Fuente :...
Un estudio pionero, publicado en la revista Nature, imita la evolución de la morfología de forma tridimensional integrando los mecanismos de regulación genética que se dan durante el desarrollo embrionario. El trabajo permite tener en cuenta la complejidad real de las interacciones genéticas...
Los ojos de las hormigas y los escarabajos han inspirado a un equipo de investigadores asiáticos y de EEUU para crear una cámara digital casi semiesférica. Sus 180 elementos de imagen, parecidos a las unidades de los ojos compuestos de los insectos, ofrecen un campo de visión de 160º, según señalan...
El poeta, recientemente galardonado con el Premio Internacional Manuel Acuña de Poesía, conversa en la siguiente entrevista sobre sus dos últimas obras