725,353 articles

How important is speech in transmitting coronavirus?

Normal speech by individuals who are asymptomatic but infected with coronavirus may produce enough aerosolized particles to transmit the infection, according to aerosol scientists. Although it's not yet known how important this is to the spread of COVID-19, it underscores the need for strict social distancing measures -- and for virologists, epidemiologists and engineers who study aerosols and...

New temperature sensing mechanism in plants

Cell biologists reveal the phytochrome B molecule has unexpected dynamics activated by temperature, and behaves differently depending on the temperature and type of light. As climate change warms the world, crop growth patterns and flowering times will change. A better understanding of how phytochromes regulate the seasonal rhythms of plant growth will help scientists develop crops for optimal...

What's Up - April 2020

What are some astronomy highlights in the sky in April 2020? This month, Venus visits the Pleiades; Mars, Jupiter and Saturn begin their breakup; and we ask, "What is the Moon illusion?" News Article Type: Homepage ArticlesPublished: Friday, April 3, 2020 -...

Unsustainable food systems: Can we reverse current trends?

As rural masses migrate to urban areas, populations grow, and people work toward better living standards, global food system sustainability is jeopardized, according to a new analysis spanning low- to high-income countries. The study, which was published April 3 in the scientific journal PLOS ONE, shows that only one major global driver—the increase in international trade flows—appears to have...

The Guardian view on immunity passports: an idea whose time has not come | Editorial

A phone app seems better than a passport as a way out of the lockdown. This system will need to be temporary, installed at users’ discretion and have privacy at its coreCoronavirus – latest updatesSee all our coronavirus coverageIf ministers think immunity passports or wristbands are the answer to resolving the immediate coronavirus crisis, they are asking the wrong question. Such a system, if...

Coronavirus deaths of two nurses lead to calls for more protection

One nurse in north London resigns after being prevented from wearing mask she bought herselfCoronavirus – latest updatesSee all our coronavirus coverageDemands for better protection for healthcare workers are growing following the death of two nurses in their 30s, while another frontline worker quit her job after being forbidden from wearing a face mask.Areema Nasreen, 36, died shortly after...

Removing the novel coronavirus from the water cycle

Researchers have called for more research to determine the best ways to keep SARS-CoV-19 out of the water cycle. They also suggest that developed nations should finance water treatment systems in the developing world to help prevent future COVID-19 pandemics.

More Covid-19 patients needed for drug trials, says Matt Hancock

Health secretary says trials are being set up with ‘breathtaking speed’ to find treatmentsCoronavirus – latest updatesSee all our coronavirus coverageMore patients with Covid-19 are needed to take part in clinical trials to find licensed drugs that could be effective in treating the virus, the health secretary has said, welcoming “the breathtaking speed” with which the experiments were...