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Science News Archive September 2012 - Page 15


Page 15 of 27

China's nuclear dilemma

China's unique deployment of modern conventional ballistic missiles has a decisive effect on its war plan, creating critical uncertainties. The country's military considers conventional missiles as a fundamental source of political and military strength, but this also generates risks of escalation.

SourceSAGE·JournalBulletin of the Atomic Scientists·DateSep 14, 2012

Puberty turned on by brain during deep sleep

A recent study by Harvard researchers found that deep sleep plays a crucial role in the onset of puberty. The study suggests that inadequate or disturbed sleep in children and young adolescents may interfere with normal pubertal maturation, particularly for those with sleep disorders.

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateSep 13, 2012

CDC funds Wayne State University research to understand, prevent teen dating violence

A three-year CDC grant will support a study examining risk and protective factors for intimate partner violence (IPV) in Detroit metro-area youth. The research aims to inform IPV prevention and intervention protocols, as well as school policies, by exploring the complex interplay of individual, relational, and societal processes that l...

Computer program can identify rough sketches

Researchers from Brown University developed a computer program that recognizes sketches as they're drawn in real time, with around 56-percent accuracy. The program uses a large database of sketches to teach a computer how humans sketch objects, enabling better sketch-based interface and search applications.

Sharing the research on car-sharing

Concordia University researchers created a computer model to help car-sharing services grow while reducing congestion and carbon emissions. The model assesses areas with greatest growth potential and simulates various scenarios to predict the best strategy for growth.

SourceConcordia University·JournalExpert Systems with Applications·DateSep 13, 2012

Daily disinfection of isolation rooms reduces contamination of healthcare workers' hands

Daily disinfection of high-touch surfaces in isolation rooms significantly reduces pathogens on healthcare personnel's hands, finding a simple yet effective infection control strategy. The study highlights the importance of environmental cleaning in preventing transmission and patient exposure to harmful pathogens.

SourceSociety for Healthcare Epidemiology of America·JournalInfection Control and Hospital Epidemiology·DateSep 13, 2012

Poorest miss out on benefits, experience more material hardship, since 1996 welfare reform

A new study by University of Chicago and University of Michigan researchers found that the 1996 welfare reform may have made life harder for the very poor, who face multiple barriers to work. The research shows a significant decline in cash assistance for deeply poor families with children, while near poor families receive increased aid.

SourceUniversity of Chicago·JournalChildren and Youth Services Review·DateSep 13, 2012

NASA sees Sanba become a super typhoon

Sanba intensified from Tropical Storm to Super Typhoon on Sept. 12-13, with NASA's Aqua satellite capturing infrared data showing massive thunderstorms and heavy rain over the western North Pacific. The storm featured a large eye surrounded by strong convection and strong thunderstorms, consistent with an annular typhoon

Migratory moths profit from their journey

A new study reveals that migratory insects, such as the Silver Y moth, can survive and thrive in Northern Europe during the summer, thanks to abundant food supplies. This discovery challenges previous assumptions about insect migration and highlights the importance of monitoring these species for pest control and ecosystem balance.

SourceLund University·JournalProceedings of the National Academy of Sciences·DateSep 13, 2012

World's hottest temperature cools a bit

A team of meteorologists has overturned the world's hottest temperature record from 90 years ago, revising it to 134 F (56.7 C) recorded in Death Valley, Calif., due to systematic errors in the original measurement. The investigation found that an inexperienced observer may have made the error with a obsolete thermometer.

SourceArizona State University·JournalBulletin of the American Meteorological Society·DateSep 13, 2012

Snakes minus birds equals more spiders for Guam

A study led by Rice University found that the Pacific island of Guam has a staggering 40 times more spiders than neighboring islands due to the loss of forest birds caused by the invasive brown treesnake. The loss of birds, which consume spiders and compete with them for insects, has led to an increase in spider populations.

SourceRice University·JournalPLOS ONE·DateSep 13, 2012

Surviving without ice

Researchers discovered Arctic crustaceans migrate below sea ice during winter nights, using deep-ocean currents to reach colder areas. This adaptation increases survival and enables them to remain in the Arctic Ocean, a key finding that challenges previous perceptions of ice fauna's vulnerability.

SourceUniversity of Delaware·JournalBiology Letters·DateSep 13, 2012