Tech

Green-energy community projects need better government backing

Community-led sustainable energy projects are not taken seriously enough by the government, according to a new report from the University of East Anglia.

Published today, the report looks at how initiatives such as community-owned solar panels, wind turbines and hydro-electricity generators, as well as energy-saving projects, could make big differences in tackling climate change.

Flexible supercapacitor raises bar for volumetric energy density

Scientists have taken a large step toward making a fiber-like energy storage device that can be woven into clothing and power wearable medical monitors, communications equipment or other small electronics.

The device is a supercapacitor—a cousin to the battery. This one packs an interconnected network of graphene and carbon nanotubes so tightly that it stores energy comparable to some thin-film lithium batteries—an area where batteries have traditionally held a large advantage.

UGA research examines fate of methane following the Deepwater Horizon spill

Athens, Ga. – The 2010 Deepwater Horizon blowout discharged roughly five million gallons of oil and up to 500,000 tons of natural gas into Gulf of Mexico offshore waters over a period of 84 days. In the face of a seemingly insurmountable cleanup effort, many were relieved by reports following the disaster that naturally-occurring microbes had consumed much of the gas and oil.

Study validates air sampling techniques to fight bioterrorism

ST. LOUIS – Air and surface sampling techniques currently used by the US government are effective in fighting bioterrorism and potentially saving lives, a Saint Louis University researcher finds.

Back to the future to determine if sea level rise is accelerating

Scientists have developed a new method for revealing how sea levels might rise around the world throughout the 21st century to address the controversial topic of whether the rate of sea level rise is currently increasing.

Study strengthens link between neonicotinoids and collapse of honey bee colonies

Boston, MA — Two widely used neonicotinoids—a class of insecticide—appear to significantly harm honey bee colonies over the winter, particularly during colder winters, according to a new study from Harvard School of Public Health (HSPH). The study replicated a 2012 finding from the same research group that found a link between low doses of imidacloprid and Colony Collapse Disorder (CCD), in which bees abandon their hives over the winter and eventually die. The new study also found that low doses of a second neonicotinoid, clothianidin, had the same negative effect.

Common test used on heart patients who need defibrillator implants unnecessary: Study

Hamilton, ON (May 8, 2014) – New research from McMaster University suggests that a commonly performed test during certain types of heart surgery is not helpful and possibly harmful.

Fueling aviation with hardwoods

A key challenge in the biofuels landscape is to get more advanced biofuels—fuels other than corn ethanol and vegetable oil-based biodiesel—into the transportation pool. Utilization of advanced biofuels is stipulated by the Energy Independence and Security Act; however, current production levels lag behind proposed targets. Additionally, certain transportation sectors, such as aviation, are likely to continue to require liquid hydrocarbon fuels in the long term even as light duty transportation shifts to alternative power sources.

Scientists find solution to 2 long-standing mysteries of cuprate superconductivity

UPTON, NY—Scientists seeking to understand the intricacies of high-temperature superconductivity—the ability of certain materials to carry electrical current with no energy loss—have been particularly puzzled by a mysterious phase that emerges as charge carriers are added that appears to compete with superconductivity. It's also been a mystery why, within this "pseudogap" phase, the movement of superconducting electrons appears to be restricted to certain directions. So exploring the pseudogap and whether and how it affects the movement of electrons has been a pivotal challenge.

Just keep your promises: Going above and beyond does not pay off

May 8, 2014 - If you are sending Mother's Day flowers to your mom this weekend, chances are you opted for guaranteed delivery: the promise that they will arrive by a certain time. Should the flowers not arrive in time, you will likely feel betrayed by the sender for breaking their promise. But if they arrive earlier, you likely will be no happier than if they arrive on time, according to new research. The new work suggests that we place such a high premium on keeping a promise that exceeding it confers little or no additional benefit.

This FIB doesn't lie: New NIST microscope sees what others can't

Microscopes don't exactly lie, but their limitations affect the truths they can tell. For example, scanning electron microscopes (SEMs) simply can't see materials that don't conduct electricity very well, and their high energies can actually damage some types of samples.

In an effort to extract a little more truth from the world of nanomaterials and nanostructures, researchers at the National Institute of Standards and Technology (NIST) have built the first low-energy focused ion beam (FIB) microscope that uses a lithium ion source.*

Urine test best detects alcohol use in liver transplant candidates, recipients

Researchers from Italy confirm that urinary ethyl glucuronide (uEtG) accurately detects alcohol consumption in liver transplant candidates and recipients.

Luminescent nanocrystal tags enable rapid detection of multiple pathogens in a single test

WEST LAFAYETTE, Ind. — A research team using tunable luminescent nanocrystals as tags to advance medical and security imaging have successfully applied them to high-speed scanning technology and detected multiple viruses within minutes.

The research, led by Macquarie University in Sydney, Australia and Purdue University, builds on the team's earlier success in developing a way to control the length of time light from a luminescent nanocrystal lingers, which introduced the dimension of time in addition to color and brightness in optical detection technology.

Improving air quality in NYC would boost children's future earnings

Reducing air pollution in New York City would result in substantial economic gains for children as a result of increasing their IQs. The study is the first to estimate the costs of IQ loss associated with exposure to air pollution, and is based on prior research on prenatal exposure to air pollutants among low-income children by Frederica Perera, PhD, lead author of the current study, and colleagues at the Columbia Center for Children's Environmental Health at the Mailman School of Public Health.

Population screening for SCD in young people: Feasible with basic screening program

Amsterdam, 8 May 2014. Despite fears over cost, the wide-scale screening of young people to detect risk of sudden cardiac death (SCD) is feasible and cost effective, according to a study presented at EuroPRevent 2014.(1) More than 12,000 people aged between 14 and 35 were screened at a cost of £35 (40 euro) each; rates of subsequent referral for further investigation were low and considered of "a relative low additional cost" to health services.