Researchers at the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) created a solar cell with a record 39.5% efficiency under 1-sun global illumination. This is the highest efficiency solar cell of any type, measured using standard 1-sun conditions. Golden, co., May 25, 2022.- «The new cell is moreContinuar Leyendo
Scientists from Scripps Institution of Oceanography at the University of California San Diego, the University of São Paulo and UC Santa Cruz collaborated to discover and validate the enzymes responsible for the production ofone of the most toxic and fast-acting neurotoxins associated with freshwater harmful algal blooms in lakes andContinuar Leyendo
Preventing atherosclerosis, the underlying cause of heart disease, means scientists need to understand how immune cells drive inflammation in the arteries. La Jolla, May 21, 2022.- The challenge is that the T cells involved in atherosclerosis are very rare and extremely hard to find in the bloodstream. «This is aContinuar Leyendo
Mysterious fast radio bursts release as much energy in one second as the Sun pours out in a year and are among the most puzzling phenomena in the universe. Now researchers at Princeton University, the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) and the SLAC National AcceleratorContinuar Leyendo
Spanning from 2003 to 2021, this collection of images from the NASA/ESA Hubble Space Telescope features galaxies that are all hosts to both Cepheid variables and supernovae. These two celestial phenomena are both crucial tools used by astronomers to determine astronomical distance, and have been used to refine our measurementContinuar Leyendo
Tumors send out signals that impair normal blood flow, which makes them hard to treat with every type of cancer treatment, including radiation and chemo-, targeted and immunotherapy. Impaired blood supply creates an environment low in oxygen levels — hypoxia — that causes the tumors to take on aggressive characteristicsContinuar Leyendo
Statins have been hailed as a wonder drug; the cholesterol-lowering drugs have been prescribed to tens of millions of people since their approval in the late 1980s to prevent heart attack and stroke. But the drugs may yet have additional benefits, some research has hinted, including on mental health. Now,Continuar Leyendo
A comparison of four COVID-19 vaccinations shows that messenger RNA (mRNA) vaccines — Pfizer-BioNTech and Moderna — perform better against the World Health Organization’s variants of concern (VOCs) than viral vector vaccines — AstraZeneca and J&J/Janssen. Although they all effectively prevent severe disease by VOCs, the research, publishing May 17Continuar Leyendo
Reusable space technology has led to a rise in space transportation at a lower cost, as popularized by commercial spaceflights of companies like SpaceX and Virgin Galactic. What is poorly understood, however, is rockets’ propulsion emissions creating significant heating and compositional changes in the atmosphere. Melville, May 18, 2022.- InContinuar Leyendo
In a new study, a team of researchers from the University of Missouri, Georgia Tech and Harvard University has demonstrated the successful use of a novel Type 1 diabetes treatment in a large animal model. Their approach involves transplanting insulin-producing pancreas cells — called pancreatic islets — from a donorContinuar Leyendo
