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Sleep or sex? How the fruit fly decides

Jul 28 2017

Choosing between sex or sleep presents a behavioral quandary for many species, including the fruit fly. A multi-institution team has found that, in Drosophila at least, males and females deal with these competing imperatives in fundamentally different ways.

New data mining strategy spots those at high risk of Alzheimer's

Jul 28 2017

The push to develop treatments for Alzheimer's disease has yielded a greater understanding of the disease, but has failed to generate successful new drugs. To blame are the many undefined subtypes of mild cognitive impairment, a precursor to Alzheimer's disease. But if scientists grouped people with similar types of cognitive impairment, they could more precisely test the impact of investigational drugs.

Death rate for depressed heart patients double than for non-depressed heart patients

Jul 28 2017

People who are diagnosed with coronary artery disease and then develop depression face a risk of death that's twice as high as heart patients without depression, according to a major new study.

Trigeminal nerve stimulation shows promise for management of traumatic brain injury

Jul 28 2017

New research findings could have implications for the treatment of many neurological conditions, including severe traumatic brain injury (TBI).

ABBA sequence in tennis tiebreaking serves is proven to be fair

Jul 28 2017

Serving first does not impact winning in tennis tiebreaks that follow the ABBA sequence. In fact, the sequence should be considered in other sequential contests, such as soccer penalty shootouts or even presidential debates, according to a new report.

On-chip pumps achieve high-speed sorting of large cells

Jul 28 2017

Researchers have developed a high-speed cell sorting method of large cells with high-viability using dual on-chip pumps. The microfluidic chip has three-branched microchannels. Target cells are sorted into one of two interest channels by the high-speed flow produced by the on-chip pumps, while non-target cells enter a waste channel without pump actuation. The technique overcomes the limitation of many on-chip cell sorting methods in achieving the sorting of large cells at a high throughput.

A molecule for proper neural wiring in the cerebellum

Jul 28 2017

A molecule produced by insulating glial cells facilitates the functional wiring of brain cells involved in motor coordination, scientists have discovered.

Repairing damaged nerves, tissue, with spider threads

Jul 28 2017

The golden orb-weaver spider from Tanzania spins such strong webs that Tanzanian fishermen use them for fishing. Their spider silk is more tear-resistant than nylon and four times more elastic than steel, is heat-stable up to 250° C, extremely waterproof and, on top of that, has antibacterial properties. These characteristics also make it attractive from the point of view of biomedical research.

Aggressive spiders are quick at making accurate decisions, better at hunting unpredictable preys

Jul 28 2017

Spiders, like humans and many other animals, have distinct personalities. Two studies have unveiled interesting findings about the relationship between personality traits of spiders and their decision-making as well as hunting styles.