Two new themes: "Geodynamics and Consequences of Lithospheric Removal in the Sierra Nevada, California" and "The 36-18 Ma southern Great Basin, USA, ignimbrite province and flareup: Swarms of subduction-related supervolcanoes " add new content to Geosphere's already dynamic lineup. Also in the Apr....

Move over dancing bears -- Ronan the sea lion really does know how to boogie to the beat. Fuente : http://www.eurekalert.org/pub_releases/2013-04/apa...

An elusive step in the process of human DNA replication has been observed, for the first time, by scientists at Penn State University. The results of the research will be published in the journal eLife on Apr. 2, 2013. The step, which is crucial for DNA replication in humans and other forms of...

As the long-term impact of the Arab Spring continues to take shape, research from political scientists at Princeton University and New York University warns that the protests that swept across the Middle East and North Africa could mark more of an isolated occurrence than a permanent rise of people...

Using the same strategy that a common virus employs to evade the human immune system, researchers at Wake Forest Baptist Medical Center's Institute for Regenerative Medicine have modified adult stem cells to increase their survival -- with the goal of giving the cells time to exert their natural...

Researchers at Sanford-Burnham Medical Research Institute found that the enzyme PKCζ controls the activation of a pro-tumor gene called c-Myc. Normally, PKCζ's alteration keeps c-Myc in check. But PKCζ levels are low in prostate and other cancers, leaving c-Myc free to enhance cell...

Geckos' ability to stick to trees and leaves during rainforest downpours has fascinated scientists for decades, leading a group of University of Akron researchers to solve the mystery. Fuente : http://www.eurekalert.org/pub_releases/2013-04/uoa...

Almost 4 million people die annually from the household air pollution (HAP) caused by exposure to the combustion of biomass fuels, kerosene, or coal. A new article explains the need for studies into biomarkers of HAP exposure and predictors of respiratory disease. Fuente :...

Although guns are used in over half of all American suicides, a new study shows many emergency room doctors do not routinely ask suicidal patients about their access to firearms. Fuente : http://www.eurekalert.org/pub_releases/2013-04/uoc...

Even if you didn't eat your veggies or drink your milk as a child, your height is still in your hands. Using unique data from 17,708 adults, the researchers show for the first time that lifestyle choices we make in adulthood -- and not just the hand we're dealt as children -- influence how tall we...

In a first-of-its-kind experiment using microvesicles generated from mesenchymal bone marrow cells (MSCs) to treat cancer, neurological researchers at Henry Ford Hospital have discovered a novel approach for treatment of tumor. Specifically, the research team found that introducing genetic material...

Although sildenafil is best known for promoting erections, it may also serve as a weight loss aid by coaxing our bodies to store more healthy "brown fat" relative to unhealthy "white fat" than it would otherwise do on its own. Fuente : http://www.eurekalert.org/pub_releases/2013-04/foa...

If you're pulling and all-nighter to finish a term paper, a new parent up all night with a fussy baby, or simply can't sleep like you once could, then you may be snoozing on good health. Fuente : http://www.eurekalert.org/pub_releases/2013-04/foa...

Pharmaceuticals commonly found in the environment are disrupting streams, with unknown impacts on aquatic life and water quality. So reports a new Ecological Applications paper, which highlights the ecological cost of pharmaceutical waste and the need for more research into environmental impacts....

US adolescents' lack of heart-healthy behaviors may increase their chances of heart disease as adults. More than 80 percent of them had a poor diet and many were not physically active. Improving risk factors or preventing risk factors from developing during adolescence is the key to preventing...

Initial studies at the University of California, San Diego School of Medicine indicate that a self-help treatment program for overweight children and their parents, guided by clinical experts, may be an effective solution. The study, led by Kerri Boutelle, Ph.D., associate professor of pediatrics...

Chicken pox, the childhood affliction of earlier generations, has been largely neutralized by the varicella vaccine, according to a new study by the Kaiser Permanente Vaccine Study Center, which appears in the current online issue of Pediatrics. Fuente :...

By middle age, most people have age-related declines in near vision requiring bifocals or reading glasses. An emerging technique called hyperopic orthokeratology may provide a new alternative for restoring near vision without the need for glasses, according to a study, "Refractive Changes from...

Scientists have discovered a new biological pathway of innate immunity that ramps up inflammation and then identified agents that can block it, leading to increased survival and improved lung function in animal models of pneumonia. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/_...

New research predicts that rising temperatures will lead to a massive "greening," or increase in plant cover, in the Arctic. In a new paper, scientists reveal new models projecting that wooded areas in the Arctic could increase by as much as 50 percent over the next few decades. The researchers...

Seismic measurements show that in some regions of the Earth's mantle, plate tectonics stagnates. The causes of the 'congestion' of the subducted plate are still unknown. In a new study, mineralogists from Germany explain the phenomenon for the first time. Fuente :...

Scientists say they have evidence from animal studies that a type of central nervous system cell other than motor neurons plays a fundamental role in the development of amyotrophic lateral sclerosis (ALS), a fatal degenerative disease. The discovery holds promise, they say, for identifying new...

La teoría del caos extiende su aplicación desde la meteorología hasta la criptografía. Se cumplen 50 años de la formulación científica del llamado "efecto mariposa" ||| Fuente : http://feedproxy.google.com/~r/materia/noticias/~3...

Seismic measurements show that in some regions of the Earth's mantle, plate tectonics stagnates. The causes of the 'congestion' of the subducted plate are still unknown. In the current issue of the science magazine Nature Geoscience mineralogists from Germany explain the phenomenon for the first...

Johns Hopkins scientists say they have evidence from animal studies that a type of central nervous system cell other than motor neurons plays a fundamental role in the development of amyotrophic lateral sclerosis, a fatal degenerative disease. The discovery holds promise, they say, for identifying...

New research predicts that rising temperatures will lead to a massive "greening," or increase in plant cover, in the Arctic. In a paper published on March 31 in Nature Climate Change, scientists reveal new models projecting that wooded areas in the Arctic could increase by as much as 50 percent...

Scientists at the University of Pittsburgh School of Medicine have discovered a new biological pathway of innate immunity that ramps up inflammation and then identified agents that can block it, leading to increased survival and improved lung function in animal models of pneumonia. They reported...

Currently, the low detection efficiency of Bulk-Micromegas neutron detectors limits its use in neutron imaging systems. To overcome this, three novel converters were proposed and validated using Monte Carlo simulations. One of these converters, a matrix of 45 degree inclined parallel pillars,...

The widely used strategy of endowing crops with redundant toxins to fend off pests rests on flawed assumptions, researchers have discovered. Their study helps explain why pests are evolving resistance much faster than predicted and offers solutions for better agricultural management. Fuente :...