Tech

Using magnetism to customize patient drug delivery

Many medical conditions, such as chronic pain, cancer and diabetes, require medications that cannot be taken orally, but must be dosed intermittently, on an as-needed basis, over a long period of time. A few delivery techniques have been developed, using an implanted heat source, an implanted electronic chip or other stimuli as an "on-off" switch to release the drugs into the body. But thus far, none of these methods can reliably do all that's needed: repeatedly turn dosing on and off, deliver consistent doses and adjust doses according to the patient's need.

US tax breaks subsidize foreign oil production

(Washington) The largest U.S subsidies to fossil fuels are attributed to tax breaks that aid foreign oil production, according to research to be released on Friday by the Environmental Law Institute (ELI) in partnership with the Woodrow Wilson International Center for Scholars. The study, which reviewed fossil fuel and energy subsidies for Fiscal Years 2002-2008, reveals that the lion's share of energy subsidies supported energy sources that emit high levels of greenhouse gases.

Hot microbes cause groundwater cleanup rethink

CSIRO researchers have discovered that micro-organisms that help break down contaminants under the soil can actually get too hot for their own good.

While investigating ways of cleaning up groundwater contamination, scientists examined how microbes break down contaminants under the soil's surface and found that subsurface temperatures associated with microbial degradation can become too hot for the microbes to grow and consume the groundwater contaminants.

This can slow down the clean up of the groundwater and even continue the spread of contamination.

Pedestrian crossings could be monitored

A team of researchers from the University of Castilla-La Mancha (UCLM) has developed an intelligent surveillance system able to detect aberrant behaviour by drivers and people on foot crossing pedestrian crossings and in other urban settings. The study, published this month in the journal Expert Systems with Applications, could be used to penalise incorrect behaviour.

TECNALIA presents innovative mobile robots which are autonomous and polyvalent

TECNALIA Technological Corporation has introduced innovative robots at Euskotren's station in Atxuri (Bilbao) and which are mobile, multifunctional, collaborative, autonomous and polyvalent, suitable for a wide range of work from street cleaning and rubbish collection to accompanying elderly people. This new generation of robots is part of the European DUSTBOT research project under the remit of the VI European Framework Programme and in which TECNALIA is participating.

'Green Clean:' Researchers determining natural ways to clean contaminated soil

Researchers at North Carolina State University are working to demonstrate that trees can be used to degrade or capture fuels that leak into soil and ground water. Through a process called phytoremediation – literally a "green" technology – plants and trees remove pollutants from the environment or render them harmless.

45,000 excess deaths annually linked to lack of health insurance: Harvard study

A study published online today [Thursday] estimates nearly 45,000 annual deaths are associated with lack of health insurance. That figure is about two and a half times higher than an estimate from the Institute of Medicine (IOM) in 2002.

The new study, "Health Insurance and Mortality in U.S. Adults," appears in today's [Thursday's] online edition of the American Journal of Public Health.

Smaller isn't always better: Catalyst simulations could lower fuel cell cost

MADISON — Imagine a car that runs on hydrogen from solar power and produces water instead of carbon emissions. While vehicles like this won't be on the market anytime soon, University of Wisconsin-Madison researchers are making incremental but important strides in the fuel cell technology that could make clean cars a reality.

Salmon migration mystery explored on Idaho's Clearwater River

LEWISTON, Idaho – Temperature differences and slow-moving water at the confluence of the Clearwater and Snake rivers in Idaho might delay the migration of threatened juvenile salmon and allow them to grow larger before reaching the Pacific Ocean.

Secrets of locusts' flight may lead to tiny aircraft

Researchers are one step closer to creating a micro-aircraft that flies with the maneuverability and energy efficiency of an insect after decoding the aerodynamic secrets of insect flight.

Biofuel production could undercut efforts to shrink Gulf 'dead zone'

Scientists in Pennsylvania report that boosting production of crops used to make biofuels could make a difficult task to shrink a vast, oxygen-depleted "dead zone" in the Gulf of Mexico more difficult. The zone, which reached the size of Massachusetts in 2008, forms in summer and threatens marine life and jobs in the region. Their study is scheduled for the Oct. 1 issue of ACS' semi-monthly journal Environmental Science & Technology.

National new biology initiative offers potential for 'remarkable and far-reaching benefits'

WASHINGTON -- A report released today by the National Research Council calls on the United States to launch a new multiagency, multiyear, and multidisciplinary initiative to capitalize on the extraordinary advances recently made in biology and to accelerate new breakthroughs that could solve some of society's most pressing problems -- particularly in the areas of food, environment, energy, and health.

Impact of renewable energy on our oceans must be investigated, say scientists

Scientists from the Universities of Exeter and Plymouth are today calling for urgent research to understand the impact of renewable energy developments on marine life. The study, now published in the Journal of Applied Ecology, highlights potential environmental benefits and threats resulting from marine renewable energy, such as off-shore wind farms and wave and tidal energy conversion devices.

Depression care improved

German researchers from the Institutes for General Practice in Frankfurt, Main, and Jena have achieved positive results from a sustainable intervention in the primary care practice Annals of Internal Medicine. The international relevance of the trial is also highlighted in the editorial.

New magnetron may help win battle over advanced electronics

Researchers funded by the Air Force Office of Scientific Research (AFOSR) at the University of Michigan invented a new type of magnetron that may be used to defeat enemy electronics. A magnetron is the type of vacuum tube used as the frequency source in microwave ovens, radar systems, and other high-power microwave circuits.