Tech

Fathers can lower their children's risk of going hungry by staying involved

Fathers who don't live with their children can actually lower their son's or daughter's risk of not having enough food by just maintaining involvement in the child's life. And if the father provides support beyond money, such as gifts, groceries and other offerings, the child's risk of food insecurity may be further reduced.

Renewable energy market share climbs despite 2013 dip in investments

Frankfurt / New York, 7 April 2014 – Renewable energy's share of world electricity generation continued its steady climb last year despite a 14 per cent drop in investments to US$214.4 billion, according to a new report released today.

Fatty acid composition in blood reflects the quality of dietary carbohydrates in children

Recently published research in the University of Eastern Finland found that fatty acid composition in blood is not only a biomarker for the quality of dietary fat but also reflects the quality of dietary carbohydrates. For example the proportion of oleic acid was higher among children who consumed a lot of candy and little high-fibre grain products. Earlier studies on the topic have mainly concentrated on the association of the quality of dietary fat with fatty acid composition in blood.

Why do we get allergies? The science of springtime sniffling and sneezing (video)

WASHINGTON, April 7, 2014 — Spring has sprung, and with it comes blooming flowers, shorts and t-shirts and, for the millions who suffer from allergies, a runny nose, puffy eyes and general misery. In the American Chemical Society's (ACS') latest Reactions video, we explain the science behind the allergies that spoil spring for so many people. The video is available at http://youtu.be/vFZlxQU0Pyk.

Perceptions of student ability, testing pressures hinder some science teachers

Chestnut Hill, MA (April 5, 2014) – A survey of science teachers finds they support a new approach to science education, but they struggle to believe that all students are capable of exploring science using a method called argumentation, according to researchers from the Lynch School of Education at Boston College.

Grandparents may worsen some moms' baby blues

Does living with grandparents ease or worsen a mothers' baby blues? The answer may depend on the mother's marital status, a new study from Duke University suggests.

Married and single mothers suffer higher rates of depression when they live in multi-generational households in their baby's first year of life, the study found. But for moms who live with their romantic partners but aren't married, having one or more grandparents in the house is linked to lower rates of depression.

To bridge LEDs' green gap, scientists think small... really small

Nanostructures half the breadth of a DNA strand could improve the efficiency of light emitting diodes (LEDs), especially in the "green gap," a portion of the spectrum where LED efficiency plunges, simulations at the U.S. Department of Energy's National Energy Research Scientific Computing Center (NERSC) have shown.

Off the shelf, on the skin: Stick-on electronic patches for health monitoring

CHAMPAIGN, Ill. — Wearing a fitness tracker on your wrist or clipped to your belt is so 2013.

Engineers at the University of Illinois at Urbana-Champaign and Northwestern University have demonstrated thin, soft stick-on patches that stretch and move with the skin and incorporate commercial, off-the-shelf chip-based electronics for sophisticated wireless health monitoring.

'Unzipping' poplars' biofuel potential

EAST LANSING, Mich. — What began 20 years ago as an innovation to improve paper industry processes and dairy forage digestibility may now open the door to a much more energy- and cost-efficient way to convert biomass into fuel.

Scientists say new computer model amounts to a lot more than a hill of beans

CHAMPAIGN, Ill. — Crops that produce more while using less water seem like a dream for a world with a burgeoning population and already strained food and water resources. This dream is coming closer to reality for University of Illinois at Urbana-Champaign researchers who have developed a new computer model that can help plant scientists breed better soybean crops.

Tiny power generator runs on spit

Saliva-powered micro-sized microbial fuel cells can produce minute amounts of energy sufficient to run on-chip applications, according to an international team of engineers.

Bruce E. Logan, Evan Pugh Professor and Kappe Professor of Environmental Engineering, Penn State, credited the idea to fellow researcher Justine E. Mink. "The idea was Justine's because she was thinking about sensors for such things as glucose monitoring for diabetics and she wondered if a mini microbial fuel cell could be used," Logan said. "There is a lot of organic stuff in saliva."

How electrodes charge and discharge

CAMBRIDGE, Mass-- The electrochemical reactions inside the porous electrodes of batteries and fuel cells have been described by theorists, but never measured directly. Now, a team at MIT has figured out a way to measure the fundamental charge transfer rate — finding some significant surprises.

Americans using more energy according to Lawrence Livermore analysis

Americans used more renewable, fossil and even nuclear energy in 2013, according to the most recent energy flow charts released by Lawrence Livermore National Laboratory.

Each year, the Laboratory releases energy flow charts that illustrate the nation's consumption and use of energy. Overall, Americans used 2.3 quadrillion thermal units more in 2013 than the previous year.

From Martian rocks, a planet's watery story emerges

After 18 months on Mars, the rover Curiosity has taken more than 120,000 measurements of surface rocks and soil, painting a more detailed image of how much water was once on the Red Planet. An article in Chemical & Engineering News (C&EN) describes the technique scientists are using to analyze the rocks and what they've found.

Food pantry clients struggle to afford diapers, detergent, other non-food items

URBANA, Ill. - Many food-insecure families also struggle to afford basic non-food household goods, such as personal care, household, and baby-care products, according to a new University of Illinois study published in the Journal of Family and Economic Issues.