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Science News Archive October 2014 - Page 12


Page 12 of 35

Cause of aging remains elusive

A recent study aimed to determine the role of free radicals in aging, but was refuted due to limitations with the measurement tool used. The researchers found that changes in pH levels inside mitochondria, rather than free radical release, were responsible for the signals detected by the probe.

SourceUniversity of Bonn·JournalNature·DateOct 22, 2014

New window on the early universe

Researchers at the University of Bonn and Cardiff develop a new observational strategy for imaging extremely distant galaxies, using ALMA radio telescope data. This method improves upon previous efforts by accurately estimating molecular hydrogen presence in these galaxies, providing insights into galaxy formation and star creation.

SourceUniversity of Bonn·JournalMonthly Notices of the Royal Astronomical Society·DateOct 22, 2014

Indiana Project screenings show need for more mental health services in youth detention

A recent study by Indiana University School of Medicine found that nearly 21% of youths screened positive for mental health issues requiring follow-up. Female detainees were more likely to screen positive than male detainees, with significant disparities in service utilization based on race/ethnicity. The findings underscore the need f...

SourceIndiana University·JournalAmerican Journal of Public Health·DateOct 22, 2014

Brain simulation raises questions

Researchers discuss the limitations of brain simulations, citing the need to account for individual experience and social context. They also raise concerns about the potential creation of artificial consciousness and the technical challenges of simulating complex biological systems.

SourceUppsala University·JournalNeuron·DateOct 22, 2014

Sopping up proteins with thermosponges

The study demonstrates that thermosponge nanoparticles can effectively deliver a variety of proteins while preserving their biological activity. The new platform is designed to eliminate the need for harsh solvents and shows promise for delivering protein-based drugs for human therapeutics.

SourceBrigham and Women's Hospital·JournalNano Letters·DateOct 22, 2014

Rapid test to diagnose severe sepsis

A new rapid test developed by University of British Columbia researchers can predict severe sepsis within an hour, allowing timely treatment to begin. The genetic signature associated with the disease has been identified and can be tested as soon as a patient arrives in the emergency ward.

SourceUniversity of British Columbia·JournalEBioMedicine·DateOct 22, 2014

Trans fats still weighing Americans down

A study found that American consumers consume more than 1% of their daily calories from trans fats, exceeding the American Heart Association's recommendation. Omega-3 fatty acids have not changed significantly over the past thirty years and may help improve cardiovascular disease risk.

SourceAmerican Heart Association·JournalJournal of the American Heart Association·DateOct 22, 2014

Ph.D. designs new devices based on metamaterials

The researcher designed and manufactured new devices based on epsilon-near-zero (ENZ) metamaterials, achieving high speed transmission and radiation focusing properties. The devices have potential applications in nanocircuits, electrical levitation, invisibility, and multiple-frequency spectroscopy experiments.

SourceElhuyar Fundazioa·JournalJournal of Optics·DateOct 22, 2014

Animal therapy reduces anxiety, loneliness symptoms in college students

A study published in the Journal of Creativity in Mental Health found that animal-assisted therapy significantly reduced anxiety and loneliness symptoms among college students. The program, led by Dr. Leslie Stewart, involved interacting with a registered therapy dog named Sophie, resulting in a 60% decrease in self-reported symptoms.

SourceGeorgia State University·JournalJournal of Creativity in Mental Health·DateOct 21, 2014

Large variation in cesarean rates across US hospitals

A study analyzing 1.5 million births in US hospitals found significant variation in cesarean delivery rates, with rates ranging from 8% to 48% across hospitals. The analysis adjusted for maternal factors and hospital characteristics but did not account for parity or gestational age.

SourcePLOS·JournalPLOS Medicine·DateOct 21, 2014

Extremely high-resolution magnetic resonance imaging

The researchers have developed a novel measurement technique for MRI signals using a diamond sensor chip, detecting the signal from a single hydrogen atom and achieving an accuracy of better than one angstrom. This breakthrough brings them closer to imaging at the level of single molecules, with potential applications in structural bio...

SourceETH Zurich·JournalScience·DateOct 21, 2014