Add BrightSurf on Google Email

Science News Archive July 2016 - Page 21


Page 21 of 36

Molecular switch for controlling color and fluorescence

Researchers at Kumamoto University discovered a new method for drastically changing the color and fluorescence of a compound using oxygen and hydrogen gases. The technique uses energy from gases themselves, producing only water as a byproduct and has potential applications in detection sensors and organic semiconductors.

SourceKumamoto University·JournalAngewandte Chemie International Edition·DateJul 14, 2016

A federal origin of Stone Age farming

A recent study published in Science found that early farming populations had deep genetic differences, indicating distinct ancestries. The research identified similarities between Neolithic farmer's DNA and living people from southern Asia, suggesting a federal origin of farming.

SourceUniversity College London·JournalScience·DateJul 14, 2016

Is artificial lighting making us sick? New evidence in mice

A new study found that constant artificial lighting leads to severe disruption of health parameters in mice, including pro-inflammatory activation of the immune system, muscle loss, and early signs of osteoporosis. However, the effects are reversible when the environmental light-dark cycle is restored.

SourceCell Press·JournalCurrent Biology·DateJul 14, 2016

Genomes from Zagros mountains reveal different Neolithic ancestry of Europeans & South Asians

A recent study published in Science reveals that populations in the ancient Fertile Crescent are the ancestors of modern-day South Asians, but not of Europeans. The earliest farmers from the Zagros mountains in Iran showed a genetically distinct group that only very distantly related to the first farmers of western Anatolia and Europe.

Corneal transplants, men and women don't see eye to eye

A new study suggests that donor and recipient gender incompatibility may lead to poorer corneal transplant outcomes for women. Incompatible grafts were found to fail or be rejected more frequently in men-to-female mismatched transplants, highlighting the importance of gender matching in improving patient success rates.

SourceUniversity of Liverpool·JournalAmerican Journal of Transplantation·DateJul 14, 2016

Extracting the content of single living cells

Researchers at ETH Zurich have developed a new method for extracting the content of single living cells, enabling scientists to study individual cells at the molecular level. The technique allows for precise extraction of intracellular material, preserving live cells for repeated sampling and analysis.

SourceETH Zurich·JournalCell·DateJul 14, 2016

Rock salt holds the key to a paradigm shift

Researchers measured oxygen content in ancient atmosphere trapped in halite (rock salt) and found it to be a key component in determining the origin and evolution of higher life forms. The discovery has applications beyond origins of life, including tracking atmospheric changes and finding economic metal deposits.

SourceGeological Society of America·JournalGeology·DateJul 14, 2016

Negative stereotypes affect female soccer performance

A new study found that subjecting female soccer players to negative stereotypes about their abilities reduced their dribbling speed significantly. The researchers discovered no significant relationship between reading negative stereotypes and flow or worry, but found that girls who felt more worried spent less time on the task.

SourceElsevier·JournalPsychology of Sport and Exercise·DateJul 14, 2016

Co-invented by OHSU's Dr. David Huang 25 years ago, OCT technology helps stop blindness

The Association for Research in Vision and Ophthalmology published a special issue commemorating the 25th anniversary of Optical Coherence Tomography (OCT) technology. OCT has revolutionized eye disease diagnosis and treatment, enabling early detection of devastating conditions like age-related macular degeneration and glaucoma.

SourceOregon Health & Science University·JournalInvestigative Ophthalmology & Visual Science·DateJul 14, 2016

Researchers uncover new light harvesting potentials

A quantum-confined bandgap narrowing mechanism has been found to extend UV absorption into the visible light range, enabling design of high-efficiency paintable solar cells and water purification using sunlight. The researchers mixed TiO2 particles with graphene quantum dots, resulting in a composite that absorbs visible light.

SourceGriffith University·JournalChemical Communications·DateJul 13, 2016

Study finds first evidence that PD-1 antibody could help men with metastatic prostate cancer

Researchers at the OHSU Knight Cancer Institute have reported promising results from a Phase II clinical trial of pembrolizumab, a PD-1 antibody, in men with metastatic prostate cancer. Three out of ten participants showed significant responses to treatment, including rapid decreases in PSA levels and tumor shrinkage.

SourceOregon Health & Science University·JournalOncoTargets and Therapy·DateJul 13, 2016