A feature selection method for text categorization

Credit: Petr Kratochvil/public domain For text categorization, it is necessary to select a set of features (terms) with high discrimination by using feature selection. In text feature selection, Accuracy2 (ACC2)…

How solid air can spur sustainable development

Credit: International Institute for Applied Systems Analysis The green hydrogen economy is a sustainable alternative to fossil fuels. However, one of the challenges of constructing a global hydrogen economy is…

Cannabis-derived products like delta-8 THC and delta-10 THC have flooded the US market – two immunologists explain the medicinal benefits and potential risks

These days you see signs for delta-8 THC, delta-10 THC and CBD, or cannabidiol, everywhere – at gas stations, convenience stores, vape shops and online. Many people are rightly wondering…

Climate Weekly – US-China talks stall but survive

When Presidents Biden and Xi sat down together at the G20 in Bali last December and agreed to co-operate on climate change despite differences on Taiwan, the climate world celebrated.…

NYC transit agency ends Twitter alerts, says it’s unreliable

The Twitter application is seen on a digital device, April 25, 2022, in San Diego. Credit: AP Photo/Gregory Bull, File New York City’s Metropolitan Transit Agency, which for 14 years…

What to know about tick, Lyme season following a mild winter

This undated photo provided by the U.S. Centers for Disease Control and Prevention (CDC) shows a blacklegged tick, which is also known as a deer tick. Ticks will be more…

Are endocrine-disrupting chemicals causing a decline in fertility in men? Here’s how ideology corrupts evidence-based science

Attempts to make science conform to ideology have enjoyed a long and dispiriting history. For many centuries, religion was the main perpetrator, and scientists and philosophers who ran afoul of…

Older drivers drinking or using drugs up to four times likelier to be at fault during a car crash

Credit: Pixabay/CC0 Public Domain Substance use among older drivers increases the probability of them being at-fault two to four times during a crash, a new study, analyzing nine years’ worth…

Cheap cobalt catalyst makes record ammonia

Newswise — Ammonia (NH3) is one of the most widely produced chemicals in the world, with a production of over 187 million tons in 2020. About 85% of it is…

US should begin laying the foundation for new and advanced nuclear reactors, says new report

Credit: CC0 Public Domain New and advanced types of nuclear reactors could play an important role in helping the U.S. meet its long-term climate goals, but a range of technical,…