Tech

DOE rooftop challenge winners offer energy, cost savings

RICHLAND, Wash. – New super-efficient rooftop units that heat and cool commercial buildings offer significant energy and dollar savings, say scientists at the Department of Energy's Pacific Northwest National Laboratory. They found that the devices reduce energy costs an average of about 41 percent compared to units in operation today.

New material for quantum computing discovered out of the blue

A common blue pigment used in the £5 note could have an important role to play in the development of a quantum computer, according to a paper published today in the journal Nature.

The pigment, copper phthalocyanine (CuPc), which is similar to the light harvesting section of the chlorophyll molecule, is a low-cost organic semiconductor that is found in many household products. Crucially, it can be processed into a thin film that can be readily used for device fabrication, a significant advantage over similar materials that have been studied previously.

Enzyme restores function with diabetic kidney disease

Researchers at the University of California, San Diego School of Medicine say that, while a prevailing theory suggests elevated cellular levels of glucose ultimately result in diabetic kidney disease, the truth may, in fact, be quite the opposite. The findings could fundamentally change understanding of how diabetes-related diseases develop – and how they might be better treated.

Nanoscale engineering boosts performance of quantum dot light emitting diodes

LOS ALAMOS, N.M., October 25, 2013—Dramatic advances in the field of quantum dot light emitting diodes (QD-LEDs) could come from recent work by the Nanotechnology and Advanced Spectroscopy team at Los Alamos National Laboratory.

Measuring blood sugar with light

WASHINGTON D.C. October 25, 2013 -- One of the keys to healthful living with Type 1 and Type 2 diabetes is monitoring blood glucose (sugar) levels to ensure they remain at stable levels. People can easily and reliably do this at home using electronic devices that read sugar levels in a tiny drop of blood.

Scientists develop new method to help global coasts adapt to sea-level rise

A team of scientists, led by the University of Southampton, has developed a new method to help the world's coasts adapt to global sea-level rises over the next 100 years.

Future sea-level rise seems inevitable, although the rates and geographical patterns of change remain uncertain. Given the large and growing populations and economic activity in coastal zones, as well as the importance of coastal ecosystems, the potential impacts of sea-level change are far-reaching.

Nano-dwarves turn into tumor assassins

Hair loss, nausea, vomiting, fatigue, loss of appetite, loss of eye lashes and eye brows, susceptibility to infection – the list of possible side effects from chemotherapy is lengthy.

Many cancer patients suffer from the intense effects that accompany the treatment. High dosages of cytostatic agents are injected subcutaneously or administered intravenously to halt the growth of tumors and also to destroy resistant cells.

MTV, AP-NORC Center survey finds that online bullying has declined

New York, NY – October 24, 2013 – MTV and The Associated Press-NORC Center for Public Affairs Research today released the results of a new survey exploring the pervasiveness of digital abuse among teens and young adults, how it is affecting America's youth and how they're responding to it. According to the survey, trends show that the share of young people affected by digital abuse has declined since 2011, with less than half (49 percent) of those surveyed stating that they have experienced digital abuse, compared to 56 percent in 2011.

Researcher is optimistic about meeting 'Grand Challenge' of global prosperity

ITHACA, N.Y. – With ecological viability threatened, world resources draining, population burgeoning and despair running rampant, the end is nigh.

Or not, says Lawrence M. Cathles, Cornell professor of earth and atmospheric sciences.

"In spite of our apparent environmental problems, we stand a remarkable chance of achieving solutions," he says. "Societies all around the world are living longer. We have more access to food, clean water and energy… and we've never been more healthy."

USC study: Google search serves users from 600 percent more locations than a year ago

Over the past 10 months, Google search has dramatically increased the number of sites around the world from which it serves client queries, repurposing existing infrastructure to change the physical way that Google processes web searches, according to a new study from USC.

From October 2012 to late July 2013, the number of locations serving Google's search infrastructure increased from from a little less than 200 to a little more than 1400, and the number of ISPs grew from just over 100 to more than 850, according to the study.

Polycyclic aromatic hydrocarbons in smokeless tobacco products

A new study shows that the concentration of polycyclic aromatichydrocarbons (PAHs) in smokeless tobacco products (STPs) can differ by as much as60 fold, with the highest levels in moist snuff, and dry snuff and soft pellets; the lowestlevels were in snus. Higher levels can be explained by the use of of fire-cured tobaccosin the products. The source of the trace amounts of PAHs in snus and other productsusing non-fire-cured tobaccos was previously unknown. The results of this studyindicate the source to be environmental pollution, such as car exhausts and agriculturaland wood fires.

USC study: Google search serves users from 700 percent more locations than a year ago

Over the past 10 months, Google search has dramatically increased the number of sites around the world from which it serves client queries, repurposing existing infrastructure to change the physical way that Google processes web searches, according to a new study from USC.

From October 2012 to late July 2013, the number of locations serving Google's search infrastructure increased from from a little less than 200 to a little more than 1400, and the number of ISPs grew from just over 100 to more than 850, according to the study.

Team uses forest waste to develop cheaper, greener supercapacitors

CHAMPAIGN, Ill. — Researchers report that wood-biochar supercapacitors can produce as much power as today's activated-carbon supercapacitors at a fraction of the cost – and with environmentally friendly byproducts.

The report appears in the journal Electrochimica Acta.

Early-life exposure of frogs to herbicide increases mortality from fungal disease

The combination of the herbicide atrazine and a fungal disease is particularly deadly to frogs, shows new research from a University of South Florida laboratory, which has been investigating the global demise of amphibian populations.

USF Biologist Jason Rohr said the new findings show that early-life exposure to atrazine increases frog mortality but only when the frogs were challenged with a chytrid fungus, a pathogen implicated in worldwide amphibian declines. The research is published in the new edition of Proceedings of the Royal Society B.

Futuristic copper foam batteries get more bang for the buck

People use their GPS apps, cameras, and mobile internet to navigate strange cities in search of good coffee, record "selfie" commentary while they wait in line, and upload their videos directly to social media sites while they sip their latte. But no amount of high-tech savvy can save a well-loved device from dying when its battery is drained.