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ScienceDaily: Latest Science News |
| Posted: 26 Aug 2021 10:05 AM PDT COVID-19 survivors report significantly higher symptoms of post-traumatic stress, and these symptoms are associated with changes to the brain's connectivity, according to a new study. |
| One in three Americans had COVID-19 by the end of 2020, study estimates Posted: 26 Aug 2021 08:17 AM PDT A new study estimates that 103 million Americans, or 31 percent of the U.S. population, had been infected with SARS-CoV-2 by the end of 2020. Researchers modeled the spread of the coronavirus, finding that fewer than one-quarter of infections (22 percent) were accounted for in cases confirmed through public health reports based on testing. |
| Posted: 26 Aug 2021 08:17 AM PDT An analysis of data from 1.5 million people has identified 579 locations in the genome associated with a predisposition to different behaviors and disorders related to self-regulation, including addiction and child behavioral problems. |
| Protect habitat ‘stepping stones’ to help species cope with climate change Posted: 26 Aug 2021 08:17 AM PDT Safe passages for species adapting to climate change aren't always being protected, a new study warns. |
| Secrets of COVID-19 transmission revealed in turbulent puffs Posted: 26 Aug 2021 08:17 AM PDT Researchers have developed a new model that explains how turbulent puffs, like coughs, behave under different environmental conditions. They found that at environmental temperatures 15°C or lower, the puffs behaved with newly observed dynamics, showing more buoyancy and traveling further. Their findings could help scientists better predict how turbulence and the environment affect airborne transmission of viruses like SARS-CoV-2. |
| Volcanic eruptions may have spurred first ‘whiffs’ of oxygen in Earth’s atmosphere Posted: 26 Aug 2021 08:17 AM PDT A new analysis of 2.5-billion-year-old rocks from Australia finds that volcanic eruptions may have stimulated population surges of marine microorganisms, creating the first puffs of oxygen into the atmosphere. This would change existing stories of Earth's early atmosphere, which assumed that most changes in the early atmosphere were controlled by geologic or chemical processes. |
| Diverse DNA signatures linked to heart disease Posted: 26 Aug 2021 08:17 AM PDT Risk for heart disease does not look the same on the genetic level for different population groups, report an international team of researchers. The studY begins to outline gene activity patterns that could serve as early warning indicators for cardiovascular disease. |
| Tropical forest vulnerability index Posted: 26 Aug 2021 08:17 AM PDT New research will detect and evaluate the vulnerability of global tropical rainforests by focusing specifically on threats from changes to land-use and climate. |
| Will it be safe for humans to fly to Mars? Posted: 26 Aug 2021 08:17 AM PDT A human space mission would be viable if it doesn't exceed four years, an international research team concludes in new research. |
| A mechanism underlying most common cause of epileptic seizures revealed Posted: 26 Aug 2021 08:17 AM PDT An interdisciplinary team studying neurogenetics, neural networks, and neurophysiology has revealed how dysfunctions in even a small percentage of cells can cause disorder across the entire brain. |
| Restoring 'chaperone' protein may prevent plaque build-up in Alzheimer’s Posted: 26 Aug 2021 08:17 AM PDT Researchers have shown how restoring levels of the protein DAXX and a large group of similar proteins prevents the misfolding of the rogue proteins known to drive Alzheimer's and other neurodegenerative diseases, as well as certain mutations that contribute to cancers. |
| Cytokine APRIL protects from atherosclerotic cardiovascular disease Posted: 26 Aug 2021 08:17 AM PDT Heart attacks and strokes are the main causes of death and loss of productive years globally. These clinical complications are caused by atherosclerosis, which is a chronic disease that leads to the accumulation of LDL cholesterol and immune cells in the inner layer of arteries and thereby resulting in the build-up of atherosclerotic plaques. Researchers have now identified that a cytokine called A Proliferation Inducing Ligand (APRIL) plays a major protective role against the formation of atherosclerotic plaques. |
| Promising candidates revealed for next-generation LED-based data communications Posted: 26 Aug 2021 08:16 AM PDT A new article has detailed how two relatively unexplored semiconducting materials can satisfy the telecommunication industry's hunger for enormous amounts of data at ever-greater speeds. |
| From couch to ultra-marathon – mental imagery technique can aid running challenge completion Posted: 26 Aug 2021 08:16 AM PDT A motivational intervention known as functional imagery training (FIT) can help self-professed non-runners to complete an ultra-marathon (50km plus), according to new research. |
| Female hummingbirds avoid harassment by looking as flashy as males Posted: 26 Aug 2021 08:16 AM PDT Much like in human society, female hummingbirds have taken it into their own hands to avoid harassment. By watching white-necked Jacobin hummingbirds in Panama, researchers discovered that over a quarter of females have the same brightly colored ornamentation as males, which helps them avoid aggressive male behaviors during feeding, such as pecking and body slamming. |
| Research reveals how subtle changes in a microRNA may lead to ALS Posted: 26 Aug 2021 08:16 AM PDT This latest research on microRNAs (miRNAs), regulatory molecules that act like brakes to reduce the production of proteins, has implications for studying and treating the underlying causes of amyotrophic lateral sclerosis (ALS) and other neurological and psychiatric disorders. The work could also be applicable to a wide range of diseases involving changes in gene expression levels, like cancer. |
| Engineers create double layer of borophene Posted: 26 Aug 2021 08:16 AM PDT Engineers have created a double layer of atomically flat borophene, a feat that defies the natural tendency of boron to form non-planar clusters beyond the single-atomic-layer limit. |
| Osteoarthritis: New genetic risk factors and novel drug targets Posted: 26 Aug 2021 08:16 AM PDT Researchers have found new genetic risk factors for osteoarthritis and identified novel drug targets. Their finding is a milestone towards the development of the first ever curative treatment for osteoarthritis. |
| Plants evolved ability to actively control water-loss earlier than previously thought Posted: 26 Aug 2021 08:16 AM PDT New research has shed light on when plants first evolved the ability to respond to changing humidity in the air around them, and was probably a feature of a common ancestor of both flowering plants and ferns. |
| Fewer El Niño and La Niña events in a warmer world Posted: 26 Aug 2021 08:16 AM PDT The cycling between warm El Niño and cold La Niña conditions in the eastern Pacific has persisted without major interruptions for at least the last 11,000 years. This may change in the future. |
| New study unveils thermoelectric ink that turns car exhaust pipes into power generators Posted: 26 Aug 2021 06:50 AM PDT A recent study has resulted in the development of a thermoelectric technology method to produce power-generating tubes using 3D printing techniques. |
| Carnivore interactions are a game of risk and reward Posted: 26 Aug 2021 06:50 AM PDT Coyotes can eat by scavenging cougars' prey but it's a risky proposition as coyotes often end up killed by cougars too, a new study of predator interactions shows. |
| Underlying instincts: An appetite for survival Posted: 26 Aug 2021 06:50 AM PDT Microscopic roundworms may hold the key to understanding what is happening in the brain when the instinct of an animal changes in order to survive. |
| Posted: 26 Aug 2021 06:08 AM PDT A new study supports the FDA recommendation that patients keep any consumer electronic devices that may create magnetic interference, including cell phones and smart watches, at least six inches away from implanted medical devices, in particular pacemakers and cardiac defibrillators. |
| Mobile alert app for missing people with dementia Posted: 26 Aug 2021 05:17 AM PDT Researchers are working with community leaders to develop a mobile alert app to help locate missing people with dementia. |
| Artificial intelligence to help predict Arctic sea ice loss Posted: 26 Aug 2021 05:17 AM PDT A new AI (artificial intelligence) tool is set to enable scientists to more accurately forecast Arctic sea ice conditions months into the future. The improved predictions could underpin new early-warning systems that protect Arctic wildlife and coastal communities from the impacts of sea ice loss. |
| MOGONET provides more holistic view of biological processes underlying disease Posted: 26 Aug 2021 05:17 AM PDT To fully utilize the advances in omics technologies to achieve a more comprehensive understanding of the biological processes underlying human diseases, researchers have developed and tested MOGONET, a novel multi-omics data analysis algorithm and computational methodology. Integrating data from various omics provides a more holistic view of biological processes underlying human diseases. The creators have made MOGONET open source, free and accessible to all researchers. |
| More efficient electricity distribution thanks to new insulation material Posted: 26 Aug 2021 05:17 AM PDT High-voltage direct current cables which can efficiently transport electricity over long distances play a vital role in our electricity supply. Optimizing their performance is therefore an important challenge. With that aim in mind, scientists present a new insulation material up to three times less conductive, offering significant improvements to the properties and performance of such cables. |
| New class of habitable exoplanets represent a big step forward in the search for life Posted: 25 Aug 2021 06:12 PM PDT A new class of exoplanet very different to our own, but which could support life, has been identified by astronomers, which could greatly accelerate the search for life outside our Solar System. |
| Physical activity in children can be improved through ‘exergames’ Posted: 25 Aug 2021 06:12 PM PDT Physical activity among young people can be improved by well-designed and delivered online interventions such as 'exergames' and smartphone apps, new research shows. |
| Brain organoids mimic head size changes associated with type of autism Posted: 25 Aug 2021 06:12 PM PDT Stem cell models derived from people with specific genomic variation recapitulate aspects of their autism spectrum disorder, providing a valuable model to study the condition and look for therapeutic interventions. |
| Biomarker may help predict benefits of immunotherapy Posted: 25 Aug 2021 12:37 PM PDT A group of researchers reported that a specific pattern, or 'signature,' of markers on immune cells in the blood is a likely biomarker of response to checkpoint immunotherapy. Within this immune signature, a molecule LAG-3 provided key information identifying patients with poorer outcomes. |
| Men and women of Roman Herculaneum had different diets, new research shows Posted: 25 Aug 2021 11:31 AM PDT Archaeologists examining the Herculaneum skeletal remains of the victims of Vesuvius say they have helped shed new light on the eating habits of ancient Romans -- with food differentiated along gender lines and revealing women ate more animal products and locally grown fruit and vegetables while the men dined on more expensive fish. |
| Engineering new cell functionalities on thin films Posted: 25 Aug 2021 11:30 AM PDT Researchers have developed a method to engineer new functionalities into cells. |
| Scientists turn pollen into 3D printing ink for biomedical applications Posted: 25 Aug 2021 11:30 AM PDT Scientists have found a way to use sunflower pollen to develop a 3D printing ink material that could be used to fabricate parts useful for tissue engineering, toxicity testing and drug delivery. |
| Posted: 25 Aug 2021 11:30 AM PDT A new commentary reinforces the need to engage the public in understanding the importance of menstrual health. This includes sufficient funding and more research to educate young people, their parents and communities about the process of menstruation, along with the clinicians who serve them. |
| COVID-19 is most transmissible 2 days before and 3 days after symptoms appear Posted: 25 Aug 2021 08:36 AM PDT A new study has found that individuals infected with the COVID-19 virus are most contagious two days before, and three days after, they develop symptoms. The study also finds that infected individuals are more likely to be asymptomatic if they contracted the virus from someone who was asymptomatic. |
| How firefighters deal with heat stress and fatigue Posted: 25 Aug 2021 08:36 AM PDT A new study asked more than 470 firefighters how they recover in the field, especially in situations of greatest heat stress. |
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