Add BrightSurf on Google Email

Science News for August 7, 2011


New resource to unlock the role of microRNAs

Researchers have developed a new resource, mirKO, to investigate the role of microRNAs in human health. The resource provides tools to delete specific microRNA genes in mice or cells, allowing researchers to study their significance and biological function.

SourceWellcome Trust Sanger Institute·JournalNature Biotechnology·DateAug 7, 2011

Bullying may contribute to lower test scores

Research suggests a bullying climate may play an important role in student test performance and academic success. Schools with severe bullying climates had significantly lower scores on standardized tests.

SourceAmerican Psychological Association·DateAug 7, 2011
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

UNC-Duke ties lead to collaborative finding about cell division & metabolism

A collaborative study between UNC and Duke scientists reveals that disruptions in protein signals can lead to improper mitochondrial distribution during cell division, resulting in reduced ATP levels. This finding has implications for diseases such as cancer and neurodegenerative disorders.

SourceUniversity of North Carolina Health Care·JournalNature Cell Biology·DateAug 7, 2011

The nanoscale secret to stronger alloys

Researchers at Berkeley Lab have discovered a way to create strong, heat-resistant aluminum alloys by controlling nanoparticle size and shape. The alloy's properties are highly dependent on the uniformity of the nanoparticles and their stability when heated.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Materials·DateAug 7, 2011
Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Brain's map of space falls flat when it comes to altitude

Scientists studied brain cells in rats and found that only place cells were sensitive to height, with weak responsiveness. The brain's sense of space is more accurate in horizontal directions, suggesting a flat map of space for altitude.

SourceUniversity College London·JournalNature Neuroscience·DateAug 7, 2011

Cell-based alternative to animal testing

Researchers developed a cell-based test that can classify chemicals as sensitizing or non-sensitizing, predicting the strength of allergic responses. This alternative to animal testing aims to reduce suffering from skin conditions such as eczema.

SourceBMC (BioMed Central)·JournalBMC Genomics·DateAug 7, 2011

How yeast chromosomes avoid the bad breaks

Researchers found a novel system involving Pch2 and Orc1 proteins protecting yeast rDNA from inappropriate meiotic recombination. This protective repeat-associated heterochromatin makes the DNA segments near its boundary particularly vulnerable to recombination.

SourceWhitehead Institute for Biomedical Research·JournalNature·DateAug 7, 2011