(University of Massachusetts Amherst) As physicians and families know too well, though Alzheimer's disease has been intensely studied for decades, too much is still not known about molecular processes in the brain that cause it. Now researchers at the University of Massachusetts Amherst say new insights from analytic theory and molecular simulation techniques offer a better understanding of amyloid fibril growth and brain pathology.

(Rutgers University) A Rutgers engineer has created a mathematical model that accurately estimates the death toll linked to the COVID-19 pandemic in the United States and could be used around the world.

(The Institute of Medical Science, The University of Tokyo) Understanding the principles of cancer evolution is important in designing a therapeutic strategy. A research group at The Institute of Medical Science, The University of Tokyo (IMSUT) announced a new simulation model that describes various modes of cancer evolution in a unified manner.

(U.S. Army Research Laboratory) A US Army-funded project is identifying how officials at different levels of government can work together to encourage protective behaviors to prevent the spread of COVID-19.

(Rice University) Rice University researchers have discovered a hidden symmetry in the chemical kinetic equations scientists have long used to model and study many of the chemical processes essential for life.

(Keck School of Medicine of USC) A new USC study suggests that temporarily suppressing the body's immune system during the early stages of COVID-19 could help a patient avoid severe symptoms. That's because the research shows that an interaction between the body's two main lines of defense may be causing the immune system to go into overdrive in some patients.

(Northwestern University) Northwestern University researchers are using artificial intelligence (AI) to speed up the search for COVID-19 treatments and vaccines. The AI-powered tool makes it possible to prioritize resources for the most promising studies -- and ignore research that is unlikely to yield benefits.

(DOE/Pacific Northwest National Laboratory) Software vulnerabilities are more likely to be discussed on social media before they're revealed on a government reporting site, a practice that could pose a national security threat, according to computer scientists at Pacific Northwest National Laboratory.

(Carnegie Mellon University) A new study sought to determine how the impact of recommender systems (also called recommenders) is affected by factors such as product type, attributes, and other sources of information about products on retailers' websites. The study found that recommenders increased the number of consumer views of product pages as well as the number of products consumers consider, but that the increase was moderated by product attributes and review ratings.

(University of Colorado at Boulder) What can researchers do when their mathematical models of the spread of infectious diseases don't match real-world data? One research team is working on a solution.

(Queensland University of Technology) Your house number could be the key to the safe relaxation of COVID-19-related restrictions if governments follow a new exit strategy proposal published today in the British Medical Journal. Co-authored by QUT statistician Professor Adrian Barnett, the paper proposes the use of an 'odds-and-evens' approach to allowing people to head back to work and enjoy other activities after weeks of lockdown.

(Simon Fraser University) SFU professor Caroline Colijn’s research and data modelling to map the spread of COVID-19 in British Columbia has helped her procure funding from Genome B.C., a non-profit research organization that leads genomics innovation on Canada’s West Coast.

(Goethe University Frankfurt) According to modern particle physics, matter produced when neutron stars merge is so dense that it could exist in a state of dissolved elementary particles. This state of matter, called quark-gluon plasma, might produce a specific signature in gravitational waves. Physicists at Goethe University Frankfurt and the Frankfurt Institute for Advanced Studies have now calculated this process using supercomputers.

(Cornell University) To help future scientists make sense of what their telescopes are showing them, Cornell University astronomers have developed a spectral field guide for rocky worlds orbiting white dwarf stars.

(Brown University) Strange spots scattered across the moon's nearside where bedrock is conspicuously exposed are evidence of seismic activity set in motion 4.3 billion years ago that could be ongoing today, the researchers say.

(University of British Columbia) Mars had a global magnetic field much earlier -- and much later -- than previously known. Analysis of new satellite data found clear evidence of a magnetic field coming from a lava flow that formed less than 3.7 billion years ago, half a billion years after many people thought the Martian dynamo had ceased. The researchers also detected low-intensity magnetic fields over the Borealis Basin, believed to be one of the oldest features on Mars.

(Northumbria University ) Researchers from Northumbria University have been awarded £1.2m to help advance our understanding of the Sun and its impact on the planets within our solar system.

(University of Arkansas) Giant elliptical galaxies are not as likely as disk-shaped galaxies, such as our own Milky Way, to be cradles of technological civilizations, according to a recent paper by a University of Arkansas astrophysicist.

(Kudos Innovations Ltd) Kudos helps researchers maximize reach and visibility of research by opening up Kudos Pro. The platform helps showcase work to a range of target audiences, supporting researchers in fields where conferences have been cancelled -- and those with COVID-19-relevant work that needs rapid communication. Over 2,000 researchers have already signed up.

(University of California - Irvine) Cyanobacteria living in rocks in Chile's Atacama Desert extract water from the minerals they colonize and, in doing so, change the phase of the material from gypsum to anhydrite. Researchers at the University of California, Irvine and Johns Hopkins University gained verification of this process through experiments, and the work points to possible strategies for humans to stay hydrated in harsh environments.

(DOE/Lawrence Berkeley National Laboratory) A new study, led by researchers at Berkeley Lab and UC Berkeley, suggests new paths for catching the signals of dark matter particles that have their energy absorbed by atomic nuclei.

(King's College London) A study of female astronauts has assessed the risk of blood clots associated with spaceflight.The study, published in Aerospace Medicine and Human Performance, in collaboration with King's College London, the Centre for Space Medicine Baylor College of Medicine, NASA Johnson Space Centre and the International Space University, examines the potential risk factors for developing a blood clot (venous thromboembolism) in space.

(ESO) Astronomers have discovered a black hole lying just 1,000 light-years from Earth. The black hole is closer to our solar system than any other found to date and forms part of a triple system that can be seen with the naked eye. The astronomers found evidence for the invisible object by tracking its two companion stars using the MPG/ESO 2.2-meter telescope at ESO's La Silla Observatory in Chile. They say this system could just be the tip of the iceberg.

(Yale University) The 2020 Gruber Cosmology Prize recognizes Lars Hernquist, Center for Astrophysics | Harvard & Smithsonian, and Volker Springel, Max Planck Institute for Astrophysics, for their defining contributions to cosmological simulations, a method that tests existing theories of, and inspires new investigations into, the formation of structures at every scale from stars to galaxies to the universe itself.

(International Astronomical Union) The Gruber Cosmology Prize, which is co-sponsored by the IAU, recognises scientists whose discoveries have driven fundamental advances in our understanding of the Universe. The 2020 prize has been awarded to Lars Hernquist and Volker Springel for their pioneering work on cosmological simulations, which have not only led to their own discoveries, but also become an invaluable resource used widely by other researchers.

(SCALE Nanotech) ESA-backed researchers demonstrate the laser-propulsion of graphene sails in microgravity. The light sails use a scalable micro-membrane design that minimizes their mass and hence increases their thrust upon light irradiation. To demonstrate the new sail concept, the scientists gained access to ZARM Drop Tower. There, the sail prototypes were set in vacuum and microgravity, and 1W-lasers caused their acceleration up to 1 m/s2.

(Rutgers University) Rutgers Professor Gregory W. Moore, a renowned physicist who seeks a unified understanding of the basic forces and fundamental particles in the universe, has been elected to the prestigious National Academy of Sciences.

(NASA/Goddard Space Flight Center) NASA has selected a new pathfinding CubeSat mission to gather data not collected since the agency flew the Dynamics Explorer in the early 1980s.

(DOE/Argonne National Laboratory) A group of the world's best X-ray science facilities has developed a strategy for cooperatively combating COVID-19.

(Kobe University) Hydrogen is a possible next generation energy solution, and it can be produced from sunlight and water using photocatalysts. A research group from Kobe University has developed a strategy that greatly increases the amount of hydrogen produced using hematite photocatalysts. In addition to boosting the high efficiency of what is thought to be the world's highest performing photoanode, this strategy will be applied to artificial photosynthesis and solar water-splitting technologies via university-industry collaborations.

(Universitat Autonoma de Barcelona) More than 500 researchers from all around the world will gather virtually tomorrow Wednesday May 6 at the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB) to discuss and propose how society should adopt more sustainable and low-carbon forms of lifestyle that contribute to mitigating climate change.

(American Chemical Society) Modern society relies on polymers, such as polypropylene or polyethylene plastic, for a wide range of applications, from food containers to automobile parts to medical devices. However, like people, polymers age, and when they do, the materials become prone to cracking or breaking. Now, researchers reporting in ACS Central Science have developed a method to visualize variations in polymers that arise with age.

(University of California - Davis) In the tropical atmosphere, cold air rises due to an overlooked effect -- the lightness of water vapor. This effect helps to stabilize tropical climates, and the impacts of a warming climate would be much worse without it.

(University of Warwick) Warm winter spells have increased in frequency and duration two- to three times over since 1878, according to scientists led by the University of Warwick.

(Boston University School of Medicine) A new Boston University School of Public Health (BUSPH) study published in the journal Environmental Research finds detectable levels of DDE (what DDT becomes when metabolized in the body) and other banned organochlorine pesticides (OCPs) in the blood of over 60 percent of a cohort of black women of reproductive age in the Detroit area, with higher levels in women who smoked cigarettes daily, drank more alcohol, and drank more water.

(University of Johannesburg) Fly ash generated by coal-fired power stations is a global environmental headache, creating groundwater and air pollution from vast landfills and ash dams. The waste product can be repurposed into geopolymer concrete, such as precast heat-cured structural elements for buildings. However, a critical durability problem has been low resistance to extreme alkali attack. UJ researchers found that high temperature heat-treatment at 200 degrees Celsius can halve this harmful mechanism in fly ash geopolymer concretes.

(University of Michigan) The coronavirus pandemic has highlighted just how reliant the United States and other countries are on Chinese manufacturing, with widespread shortages of protective medical gear produced there.

(Tokyo University of Science) Plastic waste often ends up in river bodies and oceans, posing a serious threat to the marine ecosystem. To prevent the accumulation of plastic debris, we must find out where plastic emission is prevalent. To this end, scientists in Japan have come up with a new method to track plastic emissions from inland areas to sea. This method is useful to identify the 'hotspots' of plastic emission and can even help to implement appropriate measures to avoid plastic pollution.

(Florida Museum of Natural History) Florida and Georgia archaeologists have discovered the location of Fort San Antón de Carlos, home of one of the first Jesuit missions in North America. The Spanish fort was built in 1566 in the capital of the Calusa, the most powerful Native American tribe in the region, on present-day Mound Key in the center of Estero Bay on Florida's Gulf Coast.

(University of Chicago Press Journals) A recent study confirms that Mesoamerican priests ripped the hearts out of their still-living victims in three different ways. New forensic evidence, historic witness accounts and native representations now show that the most common form of native heart extraction was from beneath the rib cage, second was forceful chest penetration between two ribs and at mid-chest level between the nipples, and thirdly, a mid-chest opening of one single blow, extracting the heart from the front.

(University of Helsinki) A multidisciplinary research group coordinated by the University of Helsinki dated the bones of dozens of Iron Age residents of the Levänluhta site in Finland, and studied the carbon and nitrogen stable isotope ratios. The results provide an overview of the dietary habits based on terrestrial, marine and freshwater ecosystems, as well as of sources of livelihoods throughout the Levänluhta era.

(University of York) An international team of scientists, led by researchers at the University of York, analysed the molecular remains of food left in pottery used by the first farmers who settled along the Atlantic Coast of Europe from 7,000 to 6,000 years ago.

(American Friends of Tel Aviv University) The research reveals that hunter-gatherer societies expressed a deep emotional and psychological connection with the animal species they hunted, especially after their disappearance. The study will help anthropologists and others understand the profound environmental changes taking place in our own lifetimes.

(Molecular Biology and Evolution (Oxford University Press)) In a new paper, Dang Liu, Mark Stoneking and colleagues have analyzed newly generated genome-wide SNP data for the Kinh and 21 additional ethnic groups in Vietnam, encompassing all five major language families in MSEA, along with previously published data from nearby populations and ancient samples.

(Bentham Science Publishers) Two authors representing environmental geomorphology and historical archaeology collaborated in an investigation that aimed to examine the material culture still evident in urban burial sites with dated, upstanding headstone memorials.

(University of Warwick) 21st century X-ray technology has allowed University of Warwick scientists to peer back through time at the production of the armour worn by the crew of Henry VIII's favoured warship, the Mary Rose.

(PLOS) The ancient cemetery of Mözs-Icsei d?l? in present-day Hungary holds clues to a unique community formation during the beginnings of Europe's Migration Period, according to a study published April 29, 2020 in the open-access journal PLOS ONE by Corina Knipper from the Curt-Engelhorn-Center for Archaeometry, Germany, István Koncz, Tivadar Vida from the Eötvös Loránd University, Budapest, Hungary and colleagues.

(Max Planck Institute for the Science of Human History) What makes our species unique compared to other hominins? High profile genetic, fossil and material culture discoveries present scientists working in the Late Pleistocene with an ever-more complex picture of interactions between early hominin populations. One distinctive characteristic of Homo sapiens, however, appears to be its global distribution. Exploring how Homo sapiens colonized most of the world's continents in a relatively short period could reveal the exceptional capacities of humans relative to other hominins.

(Stony Brook University) In evolutionary terms, islands are the stuff of weirdness. It is on islands where animals evolve in isolation, often for millions of years, with different food sources, competitors, predators, and parasites...indeed, different everything compared to mainland species. As a result, they develop into different shapes and sizes and evolve into new species that, given enough time, spawn yet more new species.

(Cell Press) In a study appearing April 30 in the journal Current Biology, scientists tell the story of three 16th century African slaves identified from a mass burial site in Mexico City. Using a combination of genetic, osteological, and isotope analyses, the scientists determined from where in Africa they were likely captured, the physical hardships they experienced as slaves, and what novel pathogens they may have carried with them across the Atlantic.