Twitter lets people leave tips for some tweeters

Twitter on Thursday began letting some users add virtual tip jars to accounts so people can support their tweets by tossing in money.

Veggie satay: Singapore lab cooks up Asian favourites, minus the meat

From faux-chicken satay to imitation beef rendang, a high-tech Singapore laboratory is replicating popular Asian dishes with plant-based meat alternatives to feed the region's growing appetite for sustainable food.

EXPLAINER: Why patents on COVID vaccines are so contentious

The Biden administration's call to lift patent protections on COVID-19 vaccines to help poor parts of the world get more doses has drawn praise from some countries and health advocates.

Indonesia's Sinabung spews column of volcanic ash into sky

Indonesia's rumbling Mount Sinabung erupted Friday, spewing a thick column of volcanic ash 2.8 kilometers (1.7 miles) into the sky.

PCB contamination in Icelandic orcas: A matter of diet

A new study from McGill University suggests that some Icelandic killer whales have very high concentrations of PCBs (polychlorinated biphenyls) in their blubber. But it seems that other orcas from the same population have levels of PCBs that are much lower. It mainly depends on what they eat.

Transforming atmospheric carbon into industrially useful materials

Plants are unparalleled in their ability to capture CO2 from the air, but this benefit is temporary, as leftover crops release carbon back into the atmosphere, mostly through decomposition. Researchers have proposed a more permanent, and even useful, fate for this captured carbon by turning plants into a valuable industrial material called silicon carbide (SiC)—offering a strategy to turn an atmospheric greenhouse gas into an economically and industrially valuable material.

Feeling younger buffers older adults from stress, protects against health decline

People who feel younger have a greater sense of well-being, better cognitive functioning, less inflammation, lower risk of hospitalization and even live longer than their older-feeling peers. A study published by the American Psychological Association suggests one potential reason for the link between subjective age and health: Feeling younger could help buffer middle-aged and older adults against the damaging effects of stress.

What consumers mean when they say your products are authentic

Researchers from University of Southern California, Bocconi University, and Vrije Universitei Amsterdam published a new paper in the Journal of Marketing that explains the six types of judgements consumers make when determining a product's authenticity and how marketers can use this insight to deliver more authentic offerings.

Swiping, swabbing elevates processing plant food safety

By swiping surfaces in commercial food processing plants with specially designed rapid-testing adenosine triphospate (ATP) swabs—which produce a light similar to the glow of fireflies in the presence of microorganisms—spoilage and foodborne illness could diminish, according to a new study from Cornell University food scientists.

Why do some neurons degenerate and die in Alzheimer's disease, but not others?

In the brain of a person with Alzheimer's disease, neurons degenerate and die, slowly eliminating memories and cognitive skills. However, not all neurons are impacted equally. Some types of neurons in certain brain regions are more susceptible, and even among those subtypes—mysteriously—some perish and some do not.

Study reveals how opioid supply shortages shape emergency department prescribing behaviors

When evaluating the opioid crisis, research reveals that external factors—such as the volume of pre-filled syringes, or a default number of opioid tablets that could easily be ordered at discharge for the patient—can shift prescribing and compel emergency department (ED) physicians to administer or prescribe greater quantities of opioids. A new study published in the Journal of Medical Toxicology reveals that opioid prescribing behavior can also be decreased by external factors, such as a supply shortage.

The Lancet: Once-in-a-generation opportunity to strengthen the NHS and invest in UK health and care

Post-pandemic, there is a historic opportunity to strengthen the NHS and improve health and care for all, according to a new LSE-Lancet Commission on the future of the NHS. The report is the first comprehensive analysis of the initial phases of the COVID-19 response and the main opportunities and challenges facing the NHS.

Systemic inequalities driving exposure to high indoor air pollution in London

Systemic inequalities mean that low-income households in London are more likely to be exposed to higher levels of indoor air pollution, according to a report by UCL researchers.

Scientists discover how to trick cancer cells to consume toxic drugs

New research led by a team at Massachusetts General Hospital (MGH) points to a promising strategy to boost tumors' intake of cancer drugs, thereby increasing the effectiveness of chemotherapy treatments. The group's findings are published in Nature Nanotechnology.

Pandemic-driven telehealth proves popular at safety net health system

As state and federal authorities decide whether to continue reimbursing for telehealth services that were suddenly adopted last spring in response to the coronavirus pandemic, a new study out of UC San Francisco has found that clinicians in the San Francisco Health Network (SFHN) overwhelmingly support using these services for outpatient primary care and specialty care visits.

A bridge from classroom to providing actual patient care: A study of the Regenstrief tEMR

As electronic medical records (EMRs) are increasingly used across the United States, the next generation of physicians, nurses, social workers, pharmacists and other clinicians need to acquire new knowledge and competencies related to use of EMRs early in their clinical education. But training is not routinely provided.

Japan to extend virus emergency as India posts record infections

Japan was set to extend a virus state of emergency on Friday, just months ahead of the Olympics because of growing cases, as India logged yet another record number of infections.