Technology

Nanoparticles Seen as Artificial Atoms

Berkeley Lab Researchers Observations of Nanorod Crystal Growth Points Way to Next Generation Energy Devices

In the growth of crystals, do nanoparticles act as “artificial atoms” forming molecular-type building blocks that can assemble into complex structures? This is the contention of a major but controversial theory to explain nanocrystal growth. A study by researchers at the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) may resolve the controversy and point the way to energy devices of the future.

Led by Haimei Zheng, a staff scientist in Berkeley Lab’s Materials Sciences Division, the researchers used a combination of transmission electron microscopy and advanced liquid cell handling techniques to carry out real-time observations of the growth of nanorods from nanoparticles of platinum and iron. Their observations support the theory of nanoparticles acting like artificial atoms during crystal growth. (more…)

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A Woman’s Journey

You know, I never thought I wanted kids. My little brother is seven years younger than I am. My mother worked full-time and my father was mostly absent, so the child-rearing duties frequently fell to me. I was also the oldest of the cousins, who, since their parents didn’t have money for childcare, also ended up in my lap. Oh, I’m not saying I was left alone with them at the tender age of eight or so. My grandmother watched us all, taking us from house to house as she worked as a maid.

So, my grandmother worked, and I watched the kids during the summer and after school. (more…)

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EU5 Map Usage via Smartphone Growing 7x Faster Than Classic Web

UK Has Highest Penetration of Smartphone Map Users in EU5

LONDON, UK, 31 May 2012 – comScore, Inc., a leader in measuring the digital world, today released an overview of mobile and computer usage of Maps across the five leading European markets (France, Germany, Italy, Spain and the United Kingdom) using the comScore MobiLens and comScore MMX services. The study showed that 35.0 percent of smartphone users in EU5 reported accessing maps via their device in March 2012, compared to 49.6 percent of the internet audience accessing Maps sites on their computers. Across EU5 markets, the smartphone Map audience increased 55 percent over the past year while map access via computer grew just 8 percent.

“Smartphones are quickly becoming the primary platform for on-the-go services such as maps and navigation. With apps such as Google Maps coming pre-installed on many phones it’s becoming second nature for many of us to rely on the smart device in our pocket to show us the way. The days of checking routes in advance and printing maps to take with us will soon be in our rear view mirror,” said Hesham Al-Jehani, European mobile product manager at comScore. (more…)

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Engineered Microvessels Provide a 3-D Test Bed for Human Diseases

Mice and monkeys don’t develop diseases in the same way that humans do. Nevertheless, after medical researchers have studied human cells in a Petri dish, they have little choice but to move on to study mice and primates.

University of Washington bioengineers have developed the first structure to grow small human blood vessels, creating a 3-D test bed that offers a better way to study disease, test drugs and perhaps someday grow human tissues for transplant.

The findings are published online this week in the Proceedings of the National Academy of Sciences. (more…)

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Marriage May Make People Happier

EAST LANSING, Mich. — Married people may be happier in the long run than those who aren’t married, according to new research by Michigan State University scientists.

Their study, online in the Journal of Research in Personality, finds that although matrimony does not make people happier than they were when they were single, it appears to protect against normal declines in happiness during adulthood.

“Our study suggests that people on average are happier than they would have been if they didn’t get married,” said Stevie C.Y. Yap, a researcher in MSU’s Department of Psychology. (more…)

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