Tech

Deepwater Horizon: Identifying harmful elements of persisting oil

On 20 April 2010, a floating oil rig in the Gulf of Mexico called Deepwater Horizon suddenly exploded, leading to the largest accidental marine oil disaster in the world. Collaborating scientists at EPFL in Switzerland and the Woods Hole Oceanographic Institution (WHOI) in the United States have analyzed the composition of eight oil-soaked sand patties that were collected along the Gulf shores from April until November in 2011. They determined and classified the chemical composition of these oil residues, showing that they contain harmful compounds.

New poll finds diabetes top health concern for Latino families

Boston, MA – A new NPR/Robert Wood Johnson Foundation/Harvard School of Public Health poll was released today on the views of Latinos in America about their health and health care, communities, financial situation, and discrimination in their lives. The poll found that Latinos see diabetes as the biggest health problem for their own families.

UT Austin engineer converts yeast cells into 'sweet crude' biofuel

AUSTIN, Texas — Researchers at The University of Texas at Austin's Cockrell School of Engineering have developed a new source of renewable energy, a biofuel, from genetically engineered yeast cells and ordinary table sugar. This yeast produces oils and fats, known as lipids, that can be used in place of petroleum-derived products.

Staying cool in the nanoelectric universe by getting hot

BUFFALO, N.Y. – As smartphones, tablets and other gadgets become smaller and more sophisticated, the heat they generate while in use increases. This is a growing problem because it can cause the electronics inside the gadgets to fail.

Conventional wisdom suggests the solution is to keep the guts of these gadgets cool.

But a new University at Buffalo research paper hints at the opposite: that is, to make laptops and other portable electronic devices more robust, more heat might be the answer.

Many CV devices approved by process that often does not require new clinical data

Many cardiac implantable electronic device models currently in use were approved via a Food and Drug Administration review process in which the models were assumed safe and effective based on approval of prior versions of the device, according to a study in the January 22/29 issue of JAMA.

Mediterranean diet associated with lower risk of peripheral artery disease

A multicenter study that previously reported a reduction in heart attack and stroke with a Mediterranean diet supplemented with extra-virgin olive oil or with nuts now also reports a lower risk of peripheral artery disease, according to a study in the January 22/29 issue of JAMA.

The hypothesis that a Mediterranean diet may reduce the risk of peripheral artery disease (PAD) has never been tested in a randomized trial, according to background information in the article.

Study: Electric drive vehicles have little impact on US pollutant emissions

A new study from North Carolina State University indicates that even a sharp increase in the use of electric drive passenger vehicles (EDVs) by 2050 would not significantly reduce emissions of high-profile air pollutants carbon dioxide, sulfur dioxide or nitrogen oxides.

"EDVs" is a catch-all term that includes hybrid, plug-in hybrid and battery electric vehicles.

Understanding the functioning of a new type of solar cell

Photovoltaic energy conversion offers one of the best means for the future of renewable energy in the world. The efficiency of solar cells depends heavily upon the light-absorbing materials they use. Photovoltaic systems based on lead halide perovskite are a new, revolutionary type of device with efficiencies currently exceeding 16%. However, a detailed description of how these solar cells turn light into electrical current is still lacking.

Peekaboo... I see through!

Picture the Louvre pyramid: the iconic glass pyramid that serves as main entrance and skylight to the landmark museum. The pyramid is illuminated at night, creating a magical ambience. Imagine strolling next to it while a video about the museum is projected on the glass in front of you, adding information while preserving the elegance of the structure. This seems like a scene taken from The Avengers or other sci-fi movies: although some technology for transparent displays exists, in practice it has many limitations.

Arctic warmth unprecedented in 44,000 years, reveals ancient moss

When the temperature rises on Baffin Island, in the Canadian high Arctic, ancient Polytrichum mosses, trapped beneath the ice for thousands of years, are exposed. Using radiocarbon dating, new research in Geophysical Research Letters has calculated the age of relic moss samples that have been exposed by modern Arctic warming. Since the moss samples would have been destroyed by erosion had they been previously exposed, the authors suggest that the temperatures in the Arctic are warmer than during any sustained period since the mosses were originally buried.

Anti-swine flu vaccination linked to increased risk of narcolepsy in young adults

Pandemrix is an influenza vaccination, created in 2009 to combat H1N1, known as Swine Flu. Now, a team of Swedish clinicians testing the vaccine for links to immune-related or neurological diseases have linked Pandemrix to an increased risk of narcolepsy in young adults.

Using a population-based prospective cohort study, the team analyzed data from regional vaccination registries and national health registries, covering seven healthcare regions and 61% of the Swedish population.

Virginia Tech researcher develops energy-dense sugar battery

A Virginia Tech research team has developed a battery that runs on sugar and has an unmatched energy density, a development that could replace conventional batteries with ones that are cheaper, refillable, and biodegradable.

The findings from Y.H. Percival Zhang, an associate professor of biological systems engineering in the College of Agriculture and Life Sciences and the College of Engineering, were published today in the journal Nature Communications.

Lasting consequences of World War II means more illness, less education for survivors

A novel examination of the long-lasting consequences that World War II had on continental Europeans finds that living in a war-torn country increased the likelihood of a number of physical and mental problems later in life.

Energy storage in miniaturized capacitors may boost green energy technology

WASHINGTON D.C. Jan. 17, 2014 -- The capacitors of electronic circuits function something like batteries – storing electrical charge that can be quickly dumped to power devices like camera flashes. So-called "supercapacitors" take the energy-storing abilities of capacitors a step further, storing a far greater charge in a much smaller package.

1 step at a time, researchers learning how humans walk

CORVALLIS, Ore. – Humans and some of our hominid ancestors such as Homo erectus have been walking for more than a million years, and researchers are close to figuring out how we do it.