ScienceDaily

 

Chatting coordinates heterogeneity in bacteria

Jul 26 2017

Bacterial populations can, under certain conditions, react in a coordinated manner to chemical messages produced by a minority of their members, as a new theoretical study carried out by biophysicists shows.

Lake Baikal: Protection of a unique ecosystem

Jul 26 2017

Researchers are studying the impact of climate change and environmental toxins on the lake's fauna. They addressed the question of how Baikal amphipods that fulfill important ecological functions in the lake react to pollutants in the water.

Taking technology to the next level

Jul 26 2017

Physicists have developed a new hybrid integrated platform, promising to be a more advanced alternative to conventional integrated circuits. The researchers demonstrated their approach is mass manufacturable, making it possible to integrate the platform into everyday electronic equipment like smartphones. For end users this technical advance means it may lead to faster internet on their next-generation electronic devices.

Adjusting fertilizers vital in claypan ag soils

Jul 26 2017

New research could help claypan farmers improve yields while saving costs.

New approach to hitting the gym: Optimizing weight and endurance training

Jul 26 2017

Sports scientists are warning that fatigue from weight training can carry over to endurance training and the two activities must be better coordinated to maximize athletes' performance.

'Magic Bench' lets users see, hear and feel animated characters

Jul 26 2017

Sit on Disney Research's Magic Bench and you may have an elephant hand you a glowing orb. Or you might get rained on. Or a tiny donkey might saunter by and kick the bench. It's a combined augmented and mixed reality experience, but not the type that involves wearing a head-mounted display or using a handheld device. Instead, the surroundings are instrumented rather than the individual, allowing people to share the 'magical' experience as a group.

Atlantic/Pacific ocean temperature difference fuels US wildfires

Jul 26 2017

A new study shows that difference in water temperature between the Pacific and the Atlantic oceans together with global warming impact the risk of drought and wildfire in southwestern North America.

Solar scientists rough up silicon panels to boost light capture

Jul 26 2017

Scientists enhance conversion efficiency of crystalline Si solar cells by effectively preventing reflection loss, passivating a submicron silicon structure, and adding a rough nanoscale surface texture using simple and inexpensive processes.

Humans identify emotions in the voices of all air-breathing vertebrates

Jul 26 2017

Amphibians, reptiles, mammals -- all of them communicate via acoustic signals. And humans are able to assess the emotional value of these signals. The authors interpreted their findings as evidence that there might be a universal code for the vocal expression and perception of emotions in the animal kingdom.

'Are we there yet?' Explaining ADHD science to children

Jul 26 2017

Researchers reported their latest brain research on ADHD in a scientific journal targeting -- and peer-reviewed by -- children.

Do all people experience similar near-death-experiences?

Jul 26 2017

New research examines how frequently and in what order different aspects of self-reported near-death-experiences occur. By analyzing written first-hand accounts of near-death-experiences, the researchers looked at whether specific aspects of these experiences tend to occur in the same order for different people. They found that even though some events are more common, and some are more likely to follow one another, near-death-experiences tend to be unique to the individual in terms of chronology.

Diffusion dynamics play an essential role in regulating stem cells and tissue development

Jul 26 2017

New work describes vital aspects of diffusion processes in tissue development, including the roles that molecular diffusion gradients have on stem cell signaling pathways along with new modeling tools that describe gradients of nutrients and signaling factors in three-dimensional tissue constructs.

Large-mouthed fish was top predator after mass extinction

Jul 26 2017

The food chains recovered more rapidly than previously assumed after Earth's most devastating mass extinction event about 252 million years ago as demonstrated by the fossilized skull of a large predatory fish called Birgeria americana discovered by paleontologists from the University of Zurich in the desert of Nevada.

Biomarkers for identifying tumor aggressiveness

Jul 26 2017

Future early-stage colon cancer patients could benefit from specific genetic tests that forecast their prognosis and help them make the right decision regarding chemotherapy. Two of the biomarkers are the MACC1 gene, high levels of which promote aggressive tumor growth and the development of metastasis, and a defective DNA mismatch repair (dMMR) system, which plays a role in tumor formation. Life expectancy is longer for patients with dMMR tumors and with low MACC1 gene activity.

Competition for survival signals maintains immune balance

Jul 26 2017

Although scarce, the recently discovered innate lymphoid cells vie with T cells for a shared source of interleukin-7, which helps them to survive. These findings could deepen our understanding of immune memory in vaccine and aging.