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Science News Archive December 2012 - Page 21


Page 21 of 24

Cork the key to unlocking the potential of graphene

Researchers have successfully formed graphene into useful three-dimensional structures by mirroring the structure of cork, enabling record-breaking strength and elasticity. The breakthrough, published in Nature Communications, has opened up new avenues for investigations of graphene's potential applications.

SourceMonash University·JournalNature Communications·DateDec 4, 2012

Working towards happiness

A new study by Dr. Elizabeth Mokyr Horner found that individuals experience a large improvement in well-being and life satisfaction after retirement, but this benefit stabilizes at age 70 regardless of the individual's retirement age. The researcher concludes that well-being may be affected minimally by increasing the retirement age.

SourceSpringer·JournalJournal of Happiness Studies·DateDec 4, 2012

Delivered meals help seniors stay in their homes

A Brown University analysis found that states spending more on home-delivered meals under the Older Americans Act have fewer low-care nursing home residents. Home-based meals emerged as a statistically significant factor affecting state-to-state differences in low-care nursing home population.

SourceBrown University·JournalHealth Services Research·DateDec 4, 2012

Rewriting personal history by inventing racist roads not taken

A study by Northwestern University's Kellogg School of Management found that people distort their memories and convince themselves they passed up opportunities for racism, even if none existed. This mental trick increases willingness to express less racially sensitive views and feel licensed to behave in questionable ways.

SourceNorthwestern University - Kellogg School of Management·JournalJournal of Personality and Social Psychology·DateDec 4, 2012

The radical restructuring of brain networks in comatose patients

Researchers found that comatose patients' brain networks are restructured in a radical way, with some regions becoming hubs and others less connected. This changes could be linked to consciousness disorders and may help clinical practitioners diagnose comatose patients more accurately.

SourceINSERM (Institut national de la santé et de la recherche médicale)·JournalProceedings of the National Academy of Sciences·DateDec 4, 2012

Study finds prioritizing rather than canvassing entire plant genome may lead to improved crops

Researchers at Kansas State University have developed a new method for prioritizing genes in plant genomes, which has been shown to improve the likelihood of finding critical genes controlling traits such as drought tolerance and grain yield. By applying genetic-analysis methods used to study humans, scientists were able to identify a ...

SourceKansas State University·JournalGenome Research·DateDec 4, 2012

Bias may exist in rating of medical trainees

A study by UK researchers found that attending physicians tend to rate borderline performances lower when previously exposed to good, rather than poor, performances. This contrast bias may result in biased judgments in competency-based education assessment systems.

SourceJAMA Network·JournalJAMA·DateDec 4, 2012

2012 AAAS Scientific Freedom and Responsibility Award goes to Fukushima nuclear catastrophe investigator Dr. Kiyoshi Kurokawa

Dr. Kurokawa led an independent commission investigating the Fukushima nuclear disaster, exposing regulatory capture and cultural factors that contributed to the accident. The Commission's report was presented to Parliament and has since led to a safety-first standard for the global nuclear sector.

Infants learn to look and look to learn

Researchers at the University of Iowa documented infants' ability to create knowledge by looking at their surroundings, starting nearly from birth. Infants need to dwell on objects to learn about them, and a mathematical model validates this importance.

SourceUniversity of Iowa·JournalCognitive Science·DateDec 4, 2012

Quantum thermodynamics

Researchers found that blackbody radiation shifts caused by surrounding chamber temperature can impose limits on atomic clock precision. The study, led by Charles Clark and Marianna Safronova, explores how ytterbium atoms are affected by this faint form of influence, crucial for future clock recalibrations.

SourceJoint Quantum Institute·JournalPhysical Review Letters·DateDec 4, 2012

Numerical study suggests subsea injection of chemicals didn't prevent oil from rising to sea surface

A new study using 3D models shows that chemical dispersants injected into the Macondo wellhead had little effect on preventing oil from reaching the sea surface. The researchers found that the oil droplets were too small for the dispersants to have a significant impact.