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Science News Archive May 2013 - Page 19


Page 19 of 30

Bacterium counteracts 'coffee ring effect'

Researchers from KU Leuven discovered how a bacterium produces substances that counteract the coffee ring effect at the microscopic level. The findings reveal that adding surfactants to materials can create a more uniform distribution of particles during evaporation.

SourceKU Leuven·JournalNature Communications·DateMay 14, 2013

Using clay to grow bone

Synthetic silicate nanoplatelets induce stem cell differentiation into bone cells, providing a potential therapeutic tool for tissue repair and regeneration. The study's findings offer new insights into the use of bioactive materials in medicine and biotechnology.

SourceBrigham and Women's Hospital·JournalAdvanced Materials·DateMay 14, 2013

Mining the botulinum genome

Researchers analyzed the genome of C. botulinum bacteria to understand how they acquired their deadly neurotoxin gene cluster. The study found that the bacteria picked up the cluster in a single event and discovered fragments of other toxin genes, suggesting a 'hotspot' for gene transfer.

SourceNorwich BioScience Institutes·JournalGenome Biology and Evolution·DateMay 14, 2013

CLABSI prevention efforts result in up to 200,000 infections prevented in intensive care units

Research estimates that CLABSI prevention strategies have prevented up to 200,000 central line-associated bloodstream infections among ICU patients in the US since 1990. New technologies and guidelines have improved central line insertion and maintenance practices, reducing healthcare-associated infections nationwide.

SourceSociety for Healthcare Epidemiology of America·JournalInfection Control and Hospital Epidemiology·DateMay 13, 2013

Brain frontal lobes not sole centre of human intelligence

Research from Durham University suggests that brain frontal lobes are not disproportionately enlarged relative to other areas in humans and other species. The study found that supposedly 'primitive' areas like the cerebellum played an equally important role in expanding the human brain.

SourceDurham University·JournalProceedings of the National Academy of Sciences·DateMay 13, 2013

Non-smoking hotel rooms still expose occupants to tobacco smoke

A study found that non-smoking hotel rooms can be polluted with third-hand smoke, even if the hotel has a partial smoking ban. Non-smokers who stayed at these hotels had higher levels of nicotine and other pollutants in their urine and finger wipes compared to those staying in total smoking banned hotels.

SourceBMJ Group·JournalTobacco Control·DateMay 13, 2013

Urbanization and surface warming in eastern China

A recent study found that urbanization significantly affects surface warming in eastern China, particularly in the Yangtze River Delta (YRD) region. The study revealed a remarkable summer warming rate of 0.132-0.250°C per decade, accounting for 36%-68% of regional warming. In contrast, the Beijing-Tianjin-Hebei (BTH) region experienced...

SourceScience China Press·JournalChinese Science Bulletin·DateMay 13, 2013

Using earthquake sensors to track endangered whales

A study published in the Journal of the Acoustical Society of America uses seafloor seismic data to analyze fin whale calls, revealing new information on their movement patterns and communication habits. The research also sheds light on the animals' feeding behaviors and potential collisions with ships.

SourceUniversity of Washington·JournalThe Journal of the Acoustical Society of America·DateMay 13, 2013

Job stress, unhealthy lifestyle increase risk of coronary artery disease

A recent study published in the Canadian Medical Association Journal found that people with job stress and an unhealthy lifestyle are at a higher risk of coronary artery disease. The study analyzed data from 7 cohort studies involving 102,128 participants and found that those with job strain had a 10-year incidence rate of 18.4 per 100...

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMay 13, 2013

Productivity increases with species diversity

New research from University of Toronto Scarborough confirms that environments with distantly related plant species are more productive. The study suggests that such diversity can enhance species function and fill different environmental niches, leading to increased carbon drawdown and potential climate benefits.

SourceUniversity of Toronto·JournalProceedings of the National Academy of Sciences·DateMay 13, 2013

Binghamton researcher studies oldest fossil hominin ear bones ever recovered

A study led by Binghamton University anthropologist Rolf Quam analyzed two species of early human ancestor in South Africa, revealing a human-like malleus that suggests changes in the bone occurred early in human evolution. The findings provide new insight into human origins and may need to be updated to include changes in this bone.

SourceBinghamton University·JournalProceedings of the National Academy of Sciences·DateMay 13, 2013