Using a novel, newly developed mouse model that mimics the development of Alzheimer’s disease in humans, Johns Hopkins researchers say they have been able to determine that a one-two punch of major biological “insults” must occur in the brain to cause the dementia that is the hallmark of the disease
A variety of normally harmless bacteria can cause bleaching disease in seaweeds when the seaweeds become stressed by high water temperatures, UNSW Australia researchers have discovered.
A course at the Uniformed Services University of the Health Sciences (USU), in Bethesda, Md., is teaching students global health care delivery in a unique way that’s sure to be a “thriller.”
The APL-built JEDI is one of several instruments aboard NASA’s Juno spacecraft — set to enter Jupiter orbit on July 4 — that will help scientists answer fundamental questions about the solar system’s largest planet, Earth and the universe.
New research has identified clear signs that the hole in the Antarctic ozone layer is beginning to close.
Plants can grow faster as atmospheric carbon dioxide concentrations increase, but only if they have enough nitrogen or partner with fungi that help them get it, according to new research published this week in Science.
A European study led by Umeå University Professor Lars Nyberg, has shown that the dopamine D2 receptor is linked to the long-term episodic memory, which function often reduces with age and due to dementia. This new insight can contribute to the understanding of why some but not others are affected by memory impairment. The results have been published in the journal PNAS.
The Universe is becoming gradually cleaner as more and more cosmic dust is being mopped up by the formation of stars within galaxies, an international team of astronomers has revealed.
Knowing when an asteroid could impact Earth would be nice, but learning more about the impact a super volcano eruption at Yellowstone would have on civilization — and how to be ready for it — might be more prudent.
Researchers have identified immune cells vital for protecting us from potentially fatal C. difficile infection. Surprisingly, those cells are often vilified for their role in causing asthma and allergies. But when it comes to C. difficile, they could be the difference in life and death.
University of Delaware researchers project that approximately 30 percent of current Adélie penguin colonies may be in decline by 2060 and approximately 60 percent may be in decline by 2099. The declines are associated with warming - many regions of Antarctica have warmed too much and further warming is no longer positive for the species.
A common close partnership which sees baby fish sheltering from predators among the poisonous tentacles of jellyfish will be harmed under predicted ocean acidification, a new University of Adelaide study has found.
Rising sea temperatures in the Mediterranean are encouraging alien lionfish species to invade and colonise new territories with potentially serious ecological and socioeconomic impacts.
A new study led by scientists at SBP describes a technology that could lead to new therapeutics for traumatic brain injuries. The discovery provides a means of homing drugs or nanoparticles to injured areas of the brain.
University of Wisconsin–Madison researchers studying monkeys have shown that one infection with Zika virus protects against future infection, though pregnancy may drastically prolong the time the virus stays in the body.
Numerical models show hot, rocky exoplanets can change their chemistry by vaporizing rock-forming elements in steam atmospheres that are then partially lost to space.
Scientists led by Durham University's Institute for Computational Cosmology ran the huge cosmological simulations that can be used to predict the rate at which gravitational waves caused by collisions between the monster black holes might be detected.
Coffee is enjoyed by millions of people every day and the ‘coffee experience’ has become a staple of our modern life and culture. While the current body of research related to the effects of coffee consumption on human health has been contradictory, a study in the June issue of Comprehensive Reviews in Food Science and Food Safety, which is published by the Institute of Food Technologists (IFT), found that the potential benefits of moderate coffee drinking outweigh the risks in adult consumers for the majority of major health outcomes considered.
Monumental Roman Gate Discovered at Sussita National Park, Following Discovery of Unique Mask of the God Pan. Expedition head Dr. Michael Eisenberg of the University of Haifa: “Now that the whole gate has been exposed, we not only have better information for dating the mask, but also a clue to its function. Are we looking at a gate that led to the sacred compound of the god Pan?”
Sparrows form pair bonds that are normally monogamous, but many females are unfaithful to their partner and have offspring with other males.
Research teams on both sides of the Atlantic have shown that precise modeling of the universe and its contents will change the detailed understanding of the evolution of the universe and the growth of structure in it.
Experts from WCS (Wildlife Conservation Society) and the National University of Singapore (NUS) have made a surprising discovery that could subvert the significance of traditional criteria used for species classification.
The GRAVITY instrument is now operating with the four 8.2-metre Unit Telescopes of ESO's Very Large Telescope (VLT - http://www.eso.org/public/teles-instr/paranal/) , and even from early test results it is already clear that it will soon be producing world-class science.
Xi Chen, associate professor of earth + environmental engineering at Columbia Engineering, and Klaus Lackner at Arizona State University, reports an unconventional reversible chemical reaction in a confined nanoenvironment. The discovery, a milestone in clarifying the scientific underpinnings of moisture-swing chemical reaction, is critical to understanding how to scrub CO2 from the Earth's atmosphere; the researchers have already used it to capture CO2 more efficiently and at a much lower cost than other methods.
Our universe came to life nearly 14 billion years ago in the Big Bang — a tremendously energetic fireball from which the cosmos has been expanding ever since. Today, space is filled with hundreds of billions of galaxies, including our solar system's own galactic home, the Milky Way. But how exactly did the infant universe develop into its current state, and what does it tell us about our future?
Roughly 90 percent of the biggest black holes in the known universe are dormant, meaning that they are not actively devouring matter and, consequently, not giving off any light or other radiation. But sometimes a star wanders too close to a dormant black hole and the ensuing feeding frenzy, known as a tidal disruption event, sets off spectacular fireworks.
Since gun law reform and the Firearms Buyback program 20 years ago, Australia has seen an accelerating decline in intentional firearm deaths and an absence of fatal mass shootings, the Journal of the American Medical Association (JAMA) reports today in a landmark study.
Many West Nile encephalitis survivors suffer long-term neurological problems such as memory loss. New research from Washington University School of Medicine shows that the patients’ own immune systems may have destroyed parts of their neurons, and that intervening in the immune response may help.
New research suggests for the first time that wild boars and wart hogs have an internal magnetic compass that helps them orient themselves as they forage for food and inhabit new areas.
Israel Science Foundation, Human Frontier Science Program, Jacob Blaustein Center for Scientific Cooperation, and the Society of Experimental Biology
In a five-year study on primary school children in Singapore, researchers from the National University of Singapore found that children with intrusive parents had a higher tendency to be overly critical of themselves, and this tendency increased over the years.
Researchers from the University of Chicago have shown that microbiota—the bacteria, viruses and other microbes living on the skin and in the digestive system—play an important role in the body’s ability to accept transplanted skin and other organs.
Earth's magnetosphere, the region of space dominated by Earth's magnetic field, protects our planet from the harsh battering of the solar wind. Like a protective shield, the magnetosphere absorbs and deflects plasma from the solar wind which originates from the Sun. When conditions are right, beautiful dancing auroral displays are generated. But when the solar wind is most violent, extreme space weather storms can create intense radiation in the Van Allen belts and drive electrical currents which can damage terrestrial electrical power grids. Earth could then be at risk for up to trillions of dollars of damage.
When it comes to baking bread, the bigger the loaf, the better. But to determine the baking performance of wheat flour, food scientists had to bake a loaf of bread. That may not be necessary, thanks to a new mathematical model that uses specific dough parameters to predict loaf volume. That saves time and money.
Researchers at Washington University in St. Louis have found a way to give photons, or light packets, their marching orders.
Giant Ice Age species including elephant-sized sloths and powerful sabre-toothed cats ¬that once roamed the windswept plains of Patagonia, southern South America, were finally felled by a perfect storm of a rapidly warming climate and humans, a new study has shown.
Despite predictions that expanding Medicaid would crowd doctor’s offices with new patients, and crowd out patients with other kinds of insurance, a new University of Michigan study finds no evidence of that effect.
The brains of teenagers with serious antisocial behaviour problems differ significantly in structure to those of their peers, providing the clearest evidence to date that their behaviour stems from changes in brain development in early life, according to new research led by the University of Southampton and the University of Cambridge, in collaboration with the University of Rome “Tor Vergata” in Italy.
Halfway between Hawaii and American Samoa lies a group of small islands and inlets. Among them is Palmyra Atoll, an almost 5-square-mile ring of coral.
Environmental scientists from the University of Stirling have found beech forests across western Europe are increasingly at risk from drought - with areas of southern England worst affected.
In the lead up to the World Barista Championships, University of Bath scientists say brewing more flavoursome coffee could be as simple as chilling the beans before grinding.
According to data from the large, multinational LEADER clinical trial, the glucose-lowering drug liraglutide safely and effectively decreases the overall risk of heart attack, stroke, or cardiovascular death, kidney disease, and death from all causes for people with type 2 diabetes.
For plants and animals fleeing rising temperatures, varying precipitation patterns and other effects of climate change, the eastern United States will need improved “climate connectivity” for these species to have a better shot at survival.
Carbon dioxide emissions from dry and oxygen-rich environments will likely strengthen the climate forcing impact of thawing permafrost on top of methane release from oxygen-poor wetlands in the Arctic, according to a study led by Northern Arizona University assistant research professor Christina Schädel.
A prototype system that will test a planned array of 5,000 robots for a sky-mapping instrument is taking shape at Berkeley Lab. Dubbed ProtoDESI, the scaled-down, 10-robot system will run through a series of tests on a telescope in Arizona from August-September.
The Botox toxin has a sweet tooth, and it’s this craving for sugars – glycans, to be exact – that underlies its extreme ability target neuron cells in the body … while giving researchers an approach to neutralize it.
If climate change continues on its current trajectory, the probability that any summer between 2061 and 2080 will be warmer than the hottest on record is 80 percent across the world's land areas, according to a study by the National Center for Atmospheric Research. If greenhouse gas emissions are reduced, however, that probability drops to 41 percent, according to the study.
A new nano-fabricated platform for observing brain cancer cells provides a much more detailed look at how the cells migrate and a more accurate post-surgery prognosis for brain cancer (glioblastoma) patients.
Researchers are investigating a new material that might help in nuclear fuel recycling and waste reduction by capturing certain gases released during reprocessing. Conventional technologies to remove these radioactive gases operate at extremely low, energy-intensive temperatures. By working at ambient temperature, the new material has the potential to save energy, make reprocessing cleaner and less expensive. The reclaimed materials can also be reused commercially.
The new ALMA observation is the first direct evidence that cold dense clouds can coalesce out of hot intergalactic gas and plunge into the heart of a galaxy to feed its central supermassive black hole. It also reshapes astronomers' views on how supermassive black holes feed, in a process known as accretion.
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