The anti-inflammatory drug hydroxychloroquine does not significantly reduce admission to intensive care or death in patients hospitalized with pneumonia due to COVID-19, finds a study from France. And a randomized clinical trial from China shows that hospitalized patients with mild to moderate persistent covid-19 who received hydroxychloroquine did not clear the virus more quickly than those...

Ocean breathability, which combines the oxygen levels, a species' oxygen needs and the water temperature, matches the shifts in northern anchovy populations from the 1950s to today. Under climate change, this key forage fish may no longer be able to survive in the southern part of its range, off Mexico and southern California.

In the Grand Canyon reach of the Colorado River, two species play an outsized role in the fate of mercury in the aquatic ecosystem, and their numbers are altered by flood events.

New research reaffirms that modern sea-level rise is linked to human activities and not to changes in Earth's orbit. Surprisingly, the Earth had nearly ice-free conditions with carbon dioxide levels not much higher than today and had glacial periods in times previously believed to be ice-free over the last 66 million years, according to a new article.

Moisture is the main environmental factor that triggers the degradation of the masterpiece The Scream (1910) by Edvard Munch, according to new findings using a combination of in situ non-invasive spectroscopic methods and synchrotron X-ray techniques.

Radiologists from Shanghai discuss modifying exam process and disinfecting exam room, while outlining personal protection measures during the coronavirus disease outbreak.

Scientists have reconstructed the paleoecology the Paleo-Agulhas Plain, a now-drowned landscape on the southern tip of Africa that was high and dry during glacial phases of the last 2 million years and may have been instrumental in shaping the evolution of early modern humans.

Scientists have shown that the brain suppresses information from the outside world, such as the sound of a conversation, during the sleep phase linked to dreaming. This ability could be one of the protective mechanisms of dreams.

Until now, electron spins and orbitals were thought to go hand in hand in a class of materials that's the cornerstone of modern information technology; you couldn't quickly change one without changing the other. But a new study shows that a pulse of laser light can dramatically change the spin state of one important class of materials while leaving its orbital state intact.

A new article highlights early research on blood clotting evaluation work that may help identify and treat dangerous complications of the infection.

A new study modeled shrub encroachment on a sloping landscape and reached a startling conclusion: Shrub encroachment on slopes can increase the amount of water that goes into groundwater storage. The effect of shrubs is so powerful that it even counterbalances the lower annual rainfall amounts expected during climate change.

An international research team has observed light emission from a new type of transition between electronic valleys, known as intervalley transmissions. The research provides a new way to read out valley information, potentially leading to new types of devices.

Scientists have pioneered a new technique to expose hidden biochemical pathways involving single molecules at the nanoscale.

A new species of fungus has been discovered via Twitter and christened accordingly -- Troglomyces twitteri. This unique fungal parasite grows around the reproductive organs of millipedes.

Researchers developed a computer simulation that revealed beef supply chain vulnerabilities that need safeguarding -- a realistic concern during the COVID-19 pandemic.

A major global cooling event that occurred 4,200 years ago may have led to the evolution of new rice varieties and the spread of rice into both northern and southern Asia, an international team of researchers has found.

A new guide from emergency medicine doctors details the potentially deadly cardiovascular complications COVID-19 can cause.

A team of researchers has developed a reliable and accurate blood test to track individual fat intake, a tool that could guide public health policy on healthy eating.

Photonic chips have huge potential for the future of computers and telecommunications. Physicists have now developed hybrid architecture to overcome some of the engineering hurdles facing this technology.

Research shows for the first time that interferon-alpha2b improves virus clearance and decreases levels of inflammatory markers in COVID-19 patients.

Scientists have solved a 20-year-old genetics puzzle that could result in ways to protect wheat, barley, and other crops from a devastating infection.

As unemployment rates skyrocket around the world due to the COVID-19 pandemic, a new study out of Australia and Sweden has found social venture start-ups not only alleviate social problems but are also much more important for job creation than previously thought.

New research highlights the impacts of benthic species assemblages on the giant clams Tridacna maxima.

Since the beginning of March, public life in Germany has been severely restricted due to the coronavirus pandemic. Following the encouraging decline in the number of new cases of COVID-19, the debate on the effectiveness of interventions taken to date and on further relaxation of the restrictions is meanwhile gaining momentum.