The development of renewable energies such as wind energy and solar energy is limited by their inherently random and intermittent nature. However, the vanadium flow battery (VFB) offers a cost- and energy-efficient, long-life energy storage technology that can store and smoothly output power from renewable energies. The VFB energy storage system mainly comprises the stack,…
Ten days in May. Twenty-four churches around New York City. Nearly 20,000 coronavirus tests. Over the past few weeks, churches serving communities of color have been transformed overnight into mini-clinics offering free coronavirus tests to all comers. The initiative, a partnership of the churches, Gov. Andrew M. Cuomo’s office and Northwell Health, is an effort…
Here’s what you need to know: ImageLuke Phillips, an employee at the Fontainebleau Miami Beach hotel on Sunday. The resort reopened this month, even as Florida saw persistent growth in coronavirus cases.Credit…Josh Ritchie for The New York Times KEY DATA OF THE DAY Cases surpass 2 million in the U.S., with new hot spots emerging.…
In the past decade, studies have found that taking vitamin D can lower the odds of developing respiratory infections like the cold and the flu, especially among people who have documented deficiencies. Now scientists are trying to find out whether vitamin D might also help protect against Covid-19. Some scientists believe that people with vitamin…
When we exercise, the levels of thousands of substances in our bloodstream rise and drop, according to an eye-opening new study of the immediate, interior impacts of working out. The study is the most comprehensive cataloging to date of the molecular changes that occur during and after exercise and underscores how consequential activity — and…
ImageInstalling a crown at a dental office in Vinton, Iowa, last month. In many places, dentists have gone back to work.Credit…Andy Abeyta/The Gazette, via Associated Press If not for coronavirus, you’d expect your local dentist office to be doing just fine. Dentist offices tend to be stable businesses that stick around for decades, unlike restaurants…
My granddaughter was a few months past 3 years old when she first asked the question, as we sat on the floor playing with blocks. “Bubbe, are you going to die?” Nobody is as blunt as a toddler. “Yes, I am going to die one day,” I said, trying to remain matter-of-fact. “But probably not…
Here’s what you need to know: ImageA Covid-19 field hospital on the outskirts of Sao Paulo, Brazil, on Tuesday.Credit…Andre Penner/Associated Press As the virus pushes Latin America ‘to the limit,’ coup threats rattle Brazil. The outbreak is spreading rapidly in Latin America and the Caribbean, prompting Dr. Carissa F. Etienne, the director of the Pan…
A large international study coordinated by University Hospital Regensburg and Charité – Universitätsmedizin Berlin has demonstrated the safety of new cell therapy approaches for use in kidney transplant recipients. Transplant recipients were shown to require lower levels of immunosuppression in order to prevent organ rejection. This reduces the risk of side effects such as viral…
Our sense of direction tends to decline with age. In the scientific journal “Nature Communications“, researchers from the German Center for Neurodegenerative Diseases (DZNE) and experts from the USA report on new insights into the causes of this phenomenon. According to their findings, the main source of errors in determining spatial position and apparently the…