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Science News for May 1, 2012


OSC's Tomko to champion high-performance computing

Karen Tomko, a senior researcher at the Ohio Supercomputer Center, has been designated a Campus Champion to empower researchers and educators in advancing scientific discovery through national high performance computing opportunities and resources. The XSEDE designation will provide direct access to XSEDE resources and support for rese...

Experts write on the risks of low-level radiation

A special issue of the Bulletin of the Atomic Scientists examines the debate over low-dose radiation risk, focusing on areas of agreement and disagreement. The issue includes essays from top experts in their fields, exploring topics such as the linear non-threshold theory (LNT) and its implications for policy.

SourceSAGE·JournalBulletin of the Atomic Scientists·DateMay 1, 2012

Dopamine impacts your willingness to work

A Vanderbilt University study found that individual differences in dopamine levels in specific brain areas affect motivation and willingness to work for rewards. The research provides new insights into the role of dopamine in human behavior and may have implications for treating mental illnesses like depression and schizophrenia.

Where touch meets hearing

A recent study published in PLOS Biology reveals that touch sensitivity is hereditary and linked to genetic mechanisms that support hearing. The research found a strong correlation between touch and hearing acuity in healthy human populations, suggesting that a single mutation may impair both senses.

SourcePLOS·JournalPLOS Biology·DateMay 1, 2012

Scientists make stunning inner space observations

Researchers have made a groundbreaking observation of cellular architecture using high-powered microscopes, revealing the structure of microtubules during gamete formation. The findings could impact the treatment of diseases caused by misregulation of microtubule structures, including Down syndrome and cancer.

SourceUniversity of Leicester·JournalCurrent Biology·DateMay 1, 2012

Research yields new clues to how brain cancer cells migrate and invade

Researchers have discovered that the NKCC1 protein may hold key to understanding how glioblastoma, the deadliest type of brain cancer, moves and invades healthy brain tissue. Blocking NKCC1 with a cheap FDA-approved drug slows movement of glioblastoma cells, suggesting a potential new approach to treat this aggressive cancer.

SourcePLOS·JournalPLOS Biology·DateMay 1, 2012

Smart gas sensors for better chemical detection

Researchers at the University of Michigan have developed a new smart gas sensor that can detect airborne chemicals with higher sensitivity and consume less power. The sensor uses a novel approach to separate chemicals in the gas mixture, allowing for more accurate identification and analysis.

SourceUniversity of Michigan·JournalAnalytical Chemistry·DateMay 1, 2012

Spot a bot to stop a botnet

Computer scientists in India have developed a two-pronged algorithm to detect and block botnets. The standalone algorithm uses heuristic approaches to spot suspicious activity, while the network algorithm analyzes network traffic to identify malicious behavior.

SourceInderscience Publishers·JournalInternational Journal of Wireless and Mobile Computing·DateMay 1, 2012

Researchers gain better understanding of mechanism behind tau spreading in the brain

A research group led by Giulio Maria Pasinetti has discovered that misfolded tau released by neurons can spread to surrounding cells, promoting the progression of neurodegenerative disorders. A grape-seed extract enriched in polyphenols was also found to prevent cell-to-cell spread of tau pathology.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalJournal of Biological Chemistry·DateMay 1, 2012

Use of dedicated pediatric imaging departments for pediatric CT reduces radiation dose

The study found that dedicated pediatric imaging departments significantly reduce radiation doses in pediatric CT scans, with compliance rates improving and patient doses decreasing. The use of specialized technologists and protocols tailored to child size and organ system scanned contribute to these benefits.

SourceAmerican College of Radiology·JournalJournal of the American College of Radiology·DateMay 1, 2012

It takes a village to keep teens substance free

A new study by Penn State researchers reveals that parenting behaviors and adolescents' substance-use behaviors are significantly correlated. Higher levels of parental knowledge and disciplinary consistency lead to a lower likelihood of substance use, while inconsistent parents and aware peers can increase the risk of substance use.

SourcePenn State·JournalJournal of Studies on Alcohol and Drugs·DateMay 1, 2012

Thwarting the cleverest attackers

Researchers at MIT have developed a technique to mitigate side-channel attacks, which can steal computer secrets by analyzing time it takes for a computer to store data or measure its power consumption. This approach obscures computational details, making it difficult for attackers to infer information about the program.

Treating childhood obesity: A family affair

A study by Wake Forest Baptist Medical Center found limited use of family theories in pediatric obesity research, but suggests that increased use could lead to better treatments. The researchers propose a new approach that incorporates the entire family into treatment, rather than just focusing on individual patients.

SourceAtrium Health Wake Forest Baptist·JournalInternational Journal of Obesity·DateMay 1, 2012