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52 articles from ScienceDaily

Joyful screams perceived more strongly than screams of fear or anger

The human scream signals more than fear of imminent danger or entanglement in social conflicts. Screaming can also express joy or excitement. For the first time, researchers have demonstrated that non-alarming screams are even perceived and processed by the brain more efficiently than their alarming counterparts.

Life expectancy lower near superfund sites

Living near a hazardous waste or Superfund site could cut your life short by about a year, according to a new study. The study is the first nationwide review of all hazardous waste sites and not just the 1,300 sites on the national priority list managed by the federal government.

Giant electronic conductivity change driven by artificial switch of crystal dimensionality

Scientists demonstrate the artificial control of crystal structure dimensionality to switch electronic conductivity in three orders of magnitude. The scientist succeeded to induce the direct phase transition between three dimensional and two dimensional crystal structures in a lead-tin-selenide alloy semiconductor, which shows the abrupt band structure switch from a gap-less metallic state to a...

New way to monitor and prevent nerve cell deterioration after TBI

Researchers have discovered a new way to prevent brain nerve cells from deteriorating after injury, which also revealed a potential mechanistic link between TBI and AD. Their discovery also yielded a new blood biomarker of nerve cell degeneration after injury, which is significant because there is an urgent need for mechanism-based blood biomarkers that can diagnose TBI and stage its severity.

COVID-19 in our dust may help predict outbreaks, study finds

A study done in rooms where COVID-19 patients were isolated shows that the virus's RNA can persist up to a month in dust. The study did not evaluate whether dust can transmit the virus to humans. It could, however, offer another option for monitoring COVID-19 outbreaks in specific buildings, including nursing homes, offices or schools.

Amoeba biology reveals potential treatment target for lung disease

In a series of experiments that began with amoebas -- single-celled organisms that extend podlike appendages to move around -- scientists say they have identified a genetic pathway that could be activated to help sweep out mucus from the lungs of people with chronic obstructive pulmonary disease a widespread lung ailment.

New method for putting quantum correlations to the test

An international team of physicists has identified a new technique for testing the quality of quantum correlations. Quantum computers run their algorithms on large quantum systems by creating quantum correlations across all of them. It is important to verify the quantum correlations achieved are of the desired quality. However, carrying out checks is resource-intensive so the team has proposed a...

Tremors triggered by typhoon talas tell tales of tumbling terrain

A new method was developed for high-resolution detection of landslides based on seismic data. This method was applied to detect landslides that occurred during the transit of Typhoon Talas across western Japan in 2011. Multiple landslides were detected and located, including one in Shizuoka Prefecture, 400 km east of the typhoon's track. The results show that large and small landslides may follow...

Machine learning can help slow down future pandemics

Artificial intelligence could be one of the keys for limiting the spread of infection in future pandemics. In a new study, researchers have investigated how machine learning can be used to find effective testing methods during epidemic outbreaks, thereby helping to better control the outbreaks.

New approach to centuries-old 'three-body problem'

The "three-body problem," the term coined for predicting the motion of three gravitating bodies in space, is essential for understanding a variety of astrophysical processes as well as a large class of mechanical problems, and has occupied some of the world's best physicists, astronomers and mathematicians for over three centuries. Their attempts have led to the discovery of several important...