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Science News Archive September 2015 - Page 31


Page 31 of 35

Rice researchers demo solar water-splitting technology

Researchers have developed a system that captures energy from 'hot electrons' to split water molecules into oxygen and hydrogen, offering a promising means of harnessing renewable energy. The process uses light-activated gold nanoparticles and efficiently increases solar-to-electric power-conversion efficiencies.

SourceRice University·JournalNano Letters·DateSep 4, 2015

Do antipsychotic medications affect cortical thinning?

A meta-analysis of 1155 patients with schizophrenia and 911 healthy controls found progressive cortical gray matter loss relative to healthy controls, related to cumulative antipsychotic intake. Second-generation antipsychotics showed a neuroprotective effect, reducing progressive loss.

SourceElsevier·JournalBiological Psychiatry·DateSep 3, 2015

A switch for health heart muscle

Researchers at the Centre for Genomic Regulation have discovered a unique genetic switch that guides stem cells into developing specialized heart muscle. The discovery of the Mel18 protein is expected to reveal underlying causes of heart defects and potentially lead to new methods for controlling stem cells in the laboratory.

SourceCenter for Genomic Regulation·JournalCell Stem Cell·DateSep 3, 2015

Study shows that teens lose sleep after change to daylight saving time

A new study finds that high school students lose an average of 32 minutes of sleep per night following the springtime change to daylight saving time. This leads to increased daytime sleepiness and decreased vigilance, posing a risk to teen drivers. The study suggests that this can further restrict their already limited sleep schedules.

SourceAmerican Academy of Sleep Medicine·JournalJournal of Clinical Sleep Medicine·DateSep 3, 2015

Unraveling the Web

A new video game called VERITAS aims to improve deception detection skills by training players to identify heuristics and detect deception through questioning. The game, developed by UCSB researcher Norah Dunbar, is designed for law enforcement and intelligence communities.

New findings move flexible lighting technology toward commercial feasibility

Researchers at Pohang University of Science and Technology have made significant advancements in organic light-emitting diodes (OLEDs) for solid-state lighting. The team developed flexible electrodes using graphene, conducting polymers, and silver nanowires, which demonstrated good electrical, optical, and mechanical performance.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Photonics for Energy·DateSep 3, 2015

D.C. needle exchange program prevented 120 new cases of HIV in 2 years

A study published in AIDS and Behavior found that the D.C. needle exchange program prevented 70% of newly diagnosed HIV cases and saved an estimated $44 million over two years by reducing the need for costly treatment. The program also provided access to health services, including HIV testing and addiction treatment.

Microscopic animals inspire innovative glass research

Researchers at the University of Chicago have discovered a new type of glass by studying the properties of microscopic animals, including tardigrades. The team found that these creatures can create glassy molecules under extreme conditions, leading to potential breakthroughs in electronic devices and material science.

SourceUniversity of Chicago·JournalThe Journal of Chemical Physics·DateSep 3, 2015

Shared habitats

Researchers found that two common antibiotic-resistant bacteria coexist peacefully in the gut, occupying distinct niches that satisfy their metabolic needs. Fecal transplants from healthy donors effectively cleared one pathogen, but not the other, highlighting potential for targeted therapies to eradicate specific superbugs.

SourcePLOS·JournalPLOS Pathogens·DateSep 3, 2015

Not on my watch: Chimp swats film crew's drone

A chimpanzee at the Royal Burgers' Zoo in the Netherlands deliberately used a stick as a weapon to bring down an aerial drone. This incident highlights the apes' ability to plan ahead and utilize tools in innovative ways, even without explicit training.

SourceSpringer·JournalPrimates·DateSep 3, 2015

Huddling rats behave as a 'super-organism'

A new study published in PLOS Computational Biology found that rodents behave like a self-organizing system when huddling together to regulate their temperature. This allows the group to better adapt to changing temperatures, with individual behaviors improving the ability of the whole group to regulate its temperature.

SourcePLOS·JournalPLOS Computational Biology·DateSep 3, 2015

California rising

A study by UC Santa Barbara scientist Alex Simms has found that the Pacific coast of North America is not uplifting as rapidly as previously thought. The researchers recalculated uplift rates for California and other areas, applying a correction for glacio-isostatic adjustment, which affects ocean levels due to past ice sheets.

SourceUniversity of California - Santa Barbara·JournalGeological Society of America Bulletin·DateSep 3, 2015