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| Why are people with allergic asthma less susceptible to severe COVID? Posted: 30 Mar 2022 01:45 PM PDT Scientists show how cells packed with SARS-CoV-2 detach from the upper airway and spread deep into lungs where severe COVID can take root. They also discovered how an asthmatic reaction to allergens battles the virus to hold severe COVID at bay. |
| Critical signature sound when rocks crack Posted: 30 Mar 2022 01:45 PM PDT Finding the specific sound a rock makes when it cracks and breaks seems impossible when surrounded by other subsurface noises. But researchers have now discovered a way to hear and validate that sound. |
| Predicting sudden cardiac arrest Posted: 30 Mar 2022 11:14 AM PDT Clinician-scientists have developed a clinical algorithm that, for the first time, distinguishes between treatable sudden cardiac arrest and untreatable forms of the condition. |
| Researchers’ novel tool to help develop safer pesticides Posted: 30 Mar 2022 11:14 AM PDT Researchers have developed a new computational approach to rapidly screen pesticides for safety, performance and how long they will endure in the environment. Moreover, and most importantly, the new approach will aid in the design of next-generation molecules to develop safer pesticides. |
| When a band falls flat: Searching for flatness in materials Posted: 30 Mar 2022 11:14 AM PDT The world's first catalog of flat band materials could reduce the serendipity in the search for new materials with exotic quantum properties, such as magnetism and superconductivity, with applications in memory devices or in long-range dissipationless transport of power. |
| Personality traits are associated with well-being and satisfaction in life after work Posted: 30 Mar 2022 11:14 AM PDT A new study has identified novel associations between older adults' personality traits, the routes they took to leave their jobs, and their well-being after exiting the workforce. |
| Tools reveal patterns of Neandertal extinction in the Iberian Peninsula Posted: 30 Mar 2022 11:14 AM PDT Neandertal populations in the Iberian Peninsula were experiencing local extinction and replacement even before Homo sapiens arrived, according to a new study. |
| SARS-CoV-2 spike protein more stable, slower changing than earlier version Posted: 30 Mar 2022 11:13 AM PDT New computational simulations of the behavior of SARS-CoV-1 and SARS-CoV-2 spike proteins prior to fusion with human cell receptors show that SARS-CoV-2, the virus that causes COVID-19, is more stable and slower changing than the earlier version that caused the SARS epidemic in 2003. |
| Posted: 30 Mar 2022 10:05 AM PDT A new study found that specific genetic mutations occurring in just the right locations in the brain are behind the formation of cavernous angiomas, which can bleed and cause strokes and seizures. |
| Audio files are being used as 'digital drugs', survey suggests Posted: 30 Mar 2022 10:05 AM PDT A new study sheds light on the little-known phenomenon of binaural beats, where sounds purportedly evoke psychoactive effects. |
| Record broken: Hubble spots farthest star ever seen Posted: 30 Mar 2022 09:46 AM PDT NASA's Hubble Space Telescope has established an extraordinary new benchmark: detecting the light of a star that existed within the first billion years after the universe's birth in the big bang -- the farthest individual star ever seen to date. |
| Deserts 'breathe' water vapor, study shows Posted: 30 Mar 2022 09:14 AM PDT Deserts may seem lifeless and inert, but they are very much alive. Sand dunes, in particular, grow and move -- and according to a decades long research project, they also 'breathe' humid air. |
| Engineering researchers develop porous nanoparticles for regenerative medicine Posted: 30 Mar 2022 09:14 AM PDT Stem cells can develop into many different types of cells in the body. For instance, when a person is injured, stem cells come to the site of the injury and aid in healing damaged tissues. New nanotechnology could leverage the body's regenerative potential by directing stem cells to form bone tissue. |
| Living donation opens new doors for colorectal cancer patients in need of liver transplants Posted: 30 Mar 2022 09:14 AM PDT A study is the first in North America to demonstrate that living-donor liver transplant is a viable option for patients who have systemically controlled colorectal cancer and liver tumors that cannot be surgically removed. |
| Hands, feet, and fins: The connection that explains acral melanoma Posted: 30 Mar 2022 09:14 AM PDT Scientists are using zebrafish to understand human skin cancer that attacks the hands and feet. |
| When worlds collide: Studying impact craters to uncover the secrets of the solar system Posted: 30 Mar 2022 09:13 AM PDT While for humans the constants might be death and taxes, for planets the constants are gravity and collisions. Astronomers are using information about impacts to understand the history and the composition of planets, moons, asteroids and meteorites throughout the solar system. |
| Posted: 30 Mar 2022 09:12 AM PDT Until now, proteins have been the target of most medications for the prevention and treatment of human disease. Drug developers have perceived RNA to be too unstable to target with drug therapy. However, a screen of 50,000 compounds has revealed drug-like activity against an RNA prototype called Xist, a result that opens the door for development of new medications. |
| Anti-cancer dream cream shrinks oral tumors Posted: 30 Mar 2022 08:14 AM PDT Researchers have found that treatment with miR-634 reduces the resistance of oral squamous cell carcinoma cells to cisplatin, resulting in increased tumor cell killing. An ointment containing miR-634 had a similar effect in mice, suggesting that this simple topical treatment could be used to improve the prognosis of patients with advanced oral cancer. |
| Posted: 30 Mar 2022 08:13 AM PDT Power functional theory is a new approach that makes it possible to describe precisely the dynamics of many-particle systems over time. |
| Telehealth: Bridging or perpeatuating health inequities? Posted: 30 Mar 2022 08:13 AM PDT Health inequities among Black Indigenous People of Color, immigrant and low-income communities is driven largely by inadequate healthcare access. Telehealth offers an opportunity to increase healthcare access and reduce health inequities. However, according to researchers, telehealth has unwittingly become a 'double-edged sword,' whereby the technology with potential to reduce health inequities also holds the key to exacerbate structural inequities. |
| Oxytocin treatment can take lions from ferocious to friendly Posted: 30 Mar 2022 08:13 AM PDT Lions typically aren't keen on making new friends. The giant cats guard their territory fiercely and can mortally wound a foe with a single swipe. While aggression is an advantage for apex predators in the wild, it poses real challenges for lions on reserves or in captivity, a number that is growing due to habitat loss. Researchers working on a wildlife reserve in Dinokeng, South Africa found that an intranasal application of the 'love hormone' oxytocin could make lion meet-cutes less life-threatening. |
| Where we grow up influences our sense of direction Posted: 30 Mar 2022 08:13 AM PDT New researcher has demonstrated that people's spatial navigation ability is influenced by their geographical origin. Growing up in rural or urban areas, or in cities of varying complexity, influences our sense of direction in adulthood. These results were obtained using data collected from the video game Sea Hero Quest. |
| Researchers discover new model for 'global' DNA repair Posted: 30 Mar 2022 08:13 AM PDT Two studies provide a radically new picture of how bacterial cells continually repair damaged sections (lesions) in their DNA. |
| Molecular 'blueprint' illuminates how plants perceive light Posted: 30 Mar 2022 08:13 AM PDT Plants rely on their ability to sense light for survival. But unlike animals, plants don't have eyes full of photoreceptors to capture and convey messages from visual stimuli. Instead, plants are coated with a network of light-sensing photoreceptors that detect different wavelengths of light, allowing them to regulate their lifecycles and adjust to environmental conditions. Now, scientists have determined the molecular structure of one of these vital photoreceptors -- a protein known as PhyB -- revealing a wholly different structure than previously known. The findings may have implications for agricultural and 'green' bioengineering practices. |
| Researchers find topological phenomena at high, technologically relevant frequencies Posted: 30 Mar 2022 07:33 AM PDT A new study describes topological control capabilities in an acoustic system at high technologically relevant frequencies. This work has implications for applications such as 5G communications and quantum information processing. |
| Flowers' unseen colors can help ensure pollination, survival Posted: 30 Mar 2022 07:33 AM PDT You can't see it, but different substances in the petals of flowers create a 'bulls-eye' for pollinating insects, according to a scientist whose research sheds light on chemical changes in flowers which helps them respond to environmental changes, including climate change, that might threaten their survival. |
| Alzheimer‘s: Amyloid and tau are a perilous couple Posted: 30 Mar 2022 07:33 AM PDT In the course of Alzheimer's disease, two proteins called 'amyloid' and 'tau' accumulate in the brain. A new study with more than 200 participants now provides insights into the interaction of these pathological phenomena. The data suggest that tau load in the brain impairs memory functions only when amyloid burden is also high. These findings therefore support therapeutic approaches aimed at removing amyloid from the brain in the early stages of Alzheimer's disease. |
| Time to shift research focus from 'bikini medicine' to what is really ailing women Posted: 30 Mar 2022 07:33 AM PDT A new study has found that women's health research remains disproportionately focused on the reproductive years -- particularly on pregnancy -- with few articles on the major causes of illness and death in women. |
| Argon found in air of ancient atmosphere Posted: 30 Mar 2022 07:33 AM PDT Researchers have discovered argon trapped in air-hydrate crystals in ice cores, which can be used to reconstruct past temperature changes and climate shifts. |
| Programmed assembly of wafer-scale atomically thin crystals Posted: 30 Mar 2022 07:33 AM PDT A research team develops an assembly method for atomically thin crystals at the wafer-scale. |
| An automatic information extraction system for scientific articles on COVID-19 Posted: 30 Mar 2022 07:32 AM PDT VIGICOVID is a system that uses natural language questions to get answers in the avalanche of information on COVID-19 and SARS-CoV-2. |
| Eating two servings of avocados a week linked to lower risk of cardiovascular disease Posted: 30 Mar 2022 07:32 AM PDT A 30-year study of more than 110,000 health professionals found that participants who ate at least two servings of avocado a week had a lower risk of cardiovascular disease compared to those who rarely ate avocados. Replacing animal products like butter, cheese or bacon with avocado was also associated with a lower risk of cardiovascular disease events. |
| Study shows critical protein may play a role in origin of mesothelioma Posted: 30 Mar 2022 07:32 AM PDT Researchers have discovered that a protein critical in the embryonic stages of life is reactivated in certain cases of mesothelioma, offering clues into the origin of this aggressive cancer. |
| The worrying arrival of the invasive Asian needle ant in Europe Posted: 30 Mar 2022 07:32 AM PDT A research team has, for the first time in Europe, identified a specimen of Asian needle ant (Brachyponera chinensis), a highly invasive species. |
| New algorithm will improve bowel-cancer patient care Posted: 30 Mar 2022 07:32 AM PDT An algorithm which can predict how long a patient might spend in hospital if they're diagnosed with bowel cancer could save the money and help patients feel better prepared. |
| Most face masks don't expose wearers to harmful levels of PFAS, study says Posted: 30 Mar 2022 07:32 AM PDT Face masks are important for slowing the spread of COVID-19 and protecting against smoke. Per- and polyfluoroalkyl substances (PFAS) are added to many products to repel fluids, but their presence in face masks hasn't been thoroughly studied. Now, researchers have found that most face masks tested contain low or negligible levels of PFAS, except for one marketed to firefighters, which could pose health risks in certain situations. |
| Common coronavirus infections don't generate effective antibodies against SARS-CoV-2, study finds Posted: 30 Mar 2022 07:32 AM PDT Researchers have shown that infections with two different common human coronaviruses (HCoVs) don't generate antibodies that effectively cross-react with SARS-CoV-2. So, prior infection with HCoVs is unlikely to protect against COVID-19 or worsen a SARS-CoV-2 infection through antibody-dependent enhancement (ADE), the researchers say. |
| Stabilizing low blood sugar in infancy prevents long-term brain damage Posted: 30 Mar 2022 07:32 AM PDT Low blood sugar in infancy is serious, but treatment can ward off long-term brain damage in infants, a new study has found. |
| Americans love football, but differ on whether kids should play Posted: 30 Mar 2022 07:32 AM PDT Football may be America's most popular sport, but the nation is deeply divided about whether youth should play the tackle version of the game. |
| The Rule of Two helps make spaces sound better Posted: 30 Mar 2022 07:32 AM PDT Researchers developed a new acoustic measurement technique in a room with more acoustic combinations than there are ants on Earth. |
| Engineering the quantum states in solids using light Posted: 30 Mar 2022 07:31 AM PDT A research team has developed a platform that can control the properties of solid materials with light and measure them. |
| Exercise may reduce depression symptoms, boost effects of therapy Posted: 30 Mar 2022 07:17 AM PDT Exercising for half an hour may reduce symptoms of depression for at least 75 minutes post-workout and amplify the benefits of therapy, according to two new studies. |
| From lab to slab: Rubber concrete flexes into the residential market Posted: 29 Mar 2022 04:27 PM PDT A novel approach to rubber recycling could see end-of-life tyres repurposed into concrete for residential constructions as new research shows that it can provide an economically viable and sustainable alternative to conventional concrete. |
| European earthworms reduce insect populations in North American forests Posted: 29 Mar 2022 04:17 PM PDT Earthworms introduced into northern North America have a negative impact on the insect fauna above ground. Soil ecologists found this impact for abundance as well as for biomass and species richness of insects. Their results indicate that changes in insect communities can have causes that have previously received little attention. |
| Posted: 29 Mar 2022 11:25 AM PDT The poor function of microglia, the brain's immune cells in individuals exposed to early life adversity (ELA) promotes aberrant responses to stress in adulthood that may be linked to mental illness, according to a new study. During brain development, microglia prune unnecessary synapses resulting in the formation of refined, functional circuits. Disruption of that process leaves too many synapses, changing the behavioral and hormonal responses to further stresses later in life. |
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