Culture

EAST LANSING, Mich. - The United States currently averages 20 mass shootings per year. Researchers from Michigan State University measured the extent to which mass shootings are committed by domestic violence perpetrators, suggesting how firearm restrictions may prevent these tragedies.

Under federal law, when people are convicted of domestic violence misdemeanor crimes, they are prohibited from purchasing and possessing guns for the rest of their lives. However, holes in the system allow potential mass shooters to slip through the cracks.

Online discourse by users of social media can provide important clues about the political dispositions of communities. New research suggests it can even be used by governments as a source of military intelligence to estimate prospective casualties and costs incurred from occupying foreign territories.

LOS ALAMOS, N.M., January 23, 2020--Take biomass-derived acetone--common nail polish remover--use light to upgrade it to higher-mass hydrocarbons, and, voila, you have a domestically generated product that can be blended with conventional jet fuel to fly while providing environmental benefits, creating domestic jobs, securing the nation's global leadership in bioenergy technologies, and improving U.S. energy security.

SAN DIEGO--A Tactile Internet is potentially the next phase of the Internet of Things, in which humans can touch and interact with remote or virtual objects while experiencing realistic haptic feedback.

A team of researchers led by Elaine Wong at the University of Melbourne, Australia, developed a method for enhancing haptic feedback experiences in human-to-machine applications that are typical in the Tactile Internet. The researchers believe their method can be used for forecasting proper feedback in applications ranging from electronic healthcare to virtual reality gaming.

Imagine standing in the grocery store, looking at a pile of bananas. On your side of the pile, the manager has posted yesterday's newspaper flyer, showing bananas at 62¢ per pound--so that's what you pay at the register. But on the other side of the pile, there's an up-to-the-minute screen showing that the price of bananas has now dropped to 48¢ per pound--so that's what the guy over there pays. Exact same bananas, but the price you see depends on which aisle you're standing in.

TORONTO, ON - Anthropologists at the University of Toronto (U of T) have confirmed the existence more than 10,000 years ago of a hunting camp in what is now northeastern Lebanon - one that straddles the period marking the transition from nomadic hunter-gatherer societies to agricultural settlements at the onset of the last stone age.

The ancient Samaria ostraca -- eighth-century BCE ink-on-clay inscriptions unearthed at the beginning of the 20th century in Samaria, the capital of the biblical kingdom of Israel -- are among the earliest collections of ancient Hebrew writings ever discovered. But despite a century of research, major aspects of the ostraca remain in dispute, including their precise geographical origins -- either Samaria or its outlying villages -- and the number of scribes involved in their composition.

TALLAHASSEE, Fla. -- Breathe easy: Concentrations of ozone in the air have decreased over large parts of the country in the past several decades.

But not too easy.

Policies and new technologies have reduced emissions of precursor gases that lead to ozone air pollution, but despite those improvements, the amount of ozone that plants are taking in has not followed the same trend, according to Florida State University researchers. Their findings are published in the journal Elementa: Science of the Anthropocene.

Preliminary results indicate that NASA's OSIRIS-REx spacecraft successfully executed a 0.4-mile (620-m) flyover of site Nightingale yesterday as part of the mission's Reconnaissance B phase activities. Nightingale, OSIRIS-REx's primary sample collection site, is located within a crater high in asteroid Bennu's northern hemisphere.

AUSTIN, Texas -- Sign languages throughout North and South America and Europe have centuries-long roots in five European locations, a finding that gives new insight into the influence of the European Enlightenment on many of the world's signing communities and the evolution of their languages.

Humans began transporting and growing banana in Vanuatu 3000 years ago, a University of Otago scientist has discovered.

The discovery is the earliest evidence of humans taking and cultivating banana in to what was the last area of the planet to be colonised.

In an article published this week in Nature Human Behaviour, Dr Monica Tromp, Senior Laboratory Analyst at the University of Otago's Southern Pacific Archaeological Research (SPAR), found microscopic particles of banana and other plants trapped in calcified dental plaque of the first settlers of Vanuatu.

Australian research collaboration makes first detection of 'ghost particles' from Bose-Einstein condensates made of light and matter.

The ANU/Monash University collaboration study:

Observed 'quantum depletion' for the first time in a non-equilibrium condensate

Discovered that 'light-like' condensates don't behave as we would expect

Observed 'ghost' excitations arising from quantum depletion for the first time.

QUANTUM DEPLETION OBSERVED FOR THE FIRST TIME

Bose-condensed quantum fluids are not forever.

UNIVERSITY PARK, Pa. -- American households waste, on average, almost a third of the food they acquire, according to economists, who say this wasted food has an estimated aggregate value of $240 billion annually. Divided among the nearly 128.6 million U.S. households, this waste could be costing the average household about $1,866 per year.

This inefficiency in the food economy has implications for health, food security, food marketing and climate change, noted Edward Jaenicke, professor of agricultural economics, College of Agricultural Sciences, Penn State.

Olivier Feron, a researcher at the University of Louvain (UCLouvain) Institute of Experimental and Clinical Research, seeks to understand how metastases form from a tumour. He already demonstrated that the most aggressive cancer cells use significant amounts of lipids as energy sources. Now Prof. Feron has discovered that cancer cells store lipids in small intracellular vesicles called 'lipid droplets'. Cancer cells loaded with lipids are more invasive and therefore more likely to form metastases. Prof.

The results have been reported today in the first issue of the journal Cell Reports Physical Science. With the so-called Langmuir technique, the authors transfer the material into a 2D system, and thereby circumvent the complex transport processes that influence the degradation of three-dimensional objects. They created analytical models describing different polymer architectures that are of particular interest for the design of multifunctional implants and determined the kinetic parameters that describe the degradation of these materials.