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Latest Science News -- ScienceDaily

Published: Oct 20, 2020 11:00:01 PM
  • Oct 20, 2020 10:41:34 PM
    NASA's Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx) spacecraft unfurled its robotic arm Tuesday, and in a first for the agency, briefly touched an asteroid to collect dust and pebbles from the surface for delivery to Earth in 2023.
  • Oct 20, 2020 8:12:15 PM
    Strategies meant to motivate people in the workplace may have unintended consequences -- depending on who's in charge. Recent research shows that empowerment initiatives aren't necessarily the answer for business leaders hoping to motivate their employees.
  • Oct 20, 2020 8:12:02 PM
    Artificial light abnormally increases mosquito biting behavior at night in a species that typically prefers to bite people during the day, according to new research.
  • Oct 20, 2020 7:05:14 PM
    A paleoseismic trench dug across the Gales Creek fault, located about 35 kilometers (roughly 22 miles) west of Portland, Oregon, documents evidence for three surface-rupturing earthquakes that took place about 8,800, 4,200 and 1,000 years ago.
  • Oct 20, 2020 7:05:12 PM
    Researchers have elucidated how Rubisco activase works. As the name indicates, this enzyme is critical for repairing Rubisco once it has lost its activity.
  • Oct 20, 2020 7:05:09 PM
    Researchers have linked a brain region to what they call neural polarization, offering a glimpse into the partisan brain in the weeks leading up to what is arguably the most consequential U.S. presidential election in modern history.
  • Oct 20, 2020 5:56:44 PM
    With a new material, the greenhouse gas carbon dioxide (CO2) can be specifically separated from industrial waste gases, natural gas, or biogas, and thereby made available for recycling. The separation process is both energy efficient and cost-effective.
  • Oct 20, 2020 5:56:37 PM
    A preclinical study by neuroscientists indicates that an antigen-presenting dendritic vaccine with a specific antibody response to oligomeric A-beta may be safer and offer clinical benefit in treating Alzheimer's disease. The vaccine uses immune cells known as dendritic cells loaded with a modified A beta peptide as the antigen.
  • Oct 20, 2020 5:14:03 PM
    A team of geologists believes they have found the lost plate known as Resurrection in northern Canada by using existing mantle tomography images.
  • Oct 20, 2020 5:14:01 PM
    Scientists report a breakthrough in developing a next-generation thermochromic window that not only reduces the need for air conditioning but simultaneously generates electricity.
  • Oct 20, 2020 5:13:59 PM
    A cutting-edge technique that allows scientists to zoom into tiny details in a 3D image of a whole animal heart may lead to new insights on congenital heart disease.
  • Oct 20, 2020 5:13:55 PM
    As the world grapples with COVID-19, the Ebola virus is again raging. Researchers are using supercomputers to simulate the inner workings of Ebola (as well as COVID-19), looking at how molecules move, atom by atom, to carry out their functions. Now, they have revealed structural features of the Ebola virus's protein shell to provide therapeutic targets to destabilize the virus and knock it out with an antiviral treatment.
  • Oct 20, 2020 5:13:53 PM
    For the first time, researchers have mapped the biological diversity of marine sediment, one of Earth's largest global biomes. The research team discovered that microbial diversity in the dark, energy-limited world beneath the seafloor is as diverse as in Earth's surface biomes.
  • Oct 20, 2020 5:13:47 PM
    More than half of young adults at risk for alcohol-related harm report symptoms of insomnia. Cognitive behavioral therapy (CBT) is one of the first-line treatments for insomnia, but it's never been tested on young adults who are actively drinking. Researchers evaluated CBT's effect on young adult binge drinkers with insomnia to determine if this treatment can improve their sleep and potentially affect alcohol use outcomes.
  • Oct 20, 2020 5:13:45 PM
    A new national policy was created to make determining who receives a heart transplant more fair. But new data shows it changed some practice patterns, too.
  • Oct 20, 2020 5:13:40 PM
    A new study highlights potential global hesitancy to accept a COVID-19 vaccine. Based on data collected with the previously validated COVID-SCORE survey of a sample of over 13,400 individuals from 19 countries that have been hard-hit by the virus, the investigators found that 72 percent of participants would likely take the vaccine. Of the remaining 28 percent, 14 percent would refuse, while 14 percent would hesitate, which translates into tens of millions of potential vaccine avoiders.
  • Oct 20, 2020 5:13:38 PM
    Intranasal administration of an anti-inflammatory drug helped reduce disease progression in a preclinical model of multiple sclerosis, according to recent research.
  • Oct 20, 2020 5:13:36 PM
    The discovery of the cause of a rare liver disease in babies led to uncovering a novel cellular mechanism for disposing of misfolded proteins that has implications for neurodegenerative conditions of older age.
  • Oct 20, 2020 3:13:29 PM
    Decades-old data is being used to describe the propagation of tiny droplets. Now a fluid dynamics team has developed new models: Masks and distancing are good, but not enough. Even with a mask, infectious droplets can be transmitted over several meters and remain in the air longer than previously thought.
  • Oct 20, 2020 3:13:27 PM
    In birds and other species alike, pairs can face considerable difficulties with reproduction. Scientists have now shown in an extensive analysis of 23,000 zebra finch eggs that infertility is mainly due to males, while high embryo mortality is more a problem of the females. Inbreeding, age of the parents and conditions experienced when growing up had surprisingly little influence on reproductive failures.
  • Oct 20, 2020 2:55:53 PM
    In the search to discover the origins of our solar system, an international team including planetary scientists has compared the composition of the sun to the composition of the most ancient materials that formed in our solar system: refractory inclusions in unmetamorphosed meteorites.
  • Oct 20, 2020 2:55:51 PM
    Gene editing for the development of new treatments, and for studying disease as well as normal function in humans and other organisms, may advance more quickly with a new tool for cutting larger pieces of DNA out of a cell's genome, according to a new study.
  • Oct 20, 2020 2:55:45 PM
    Now that autumn is upon us, there is a large temperature gap between day and night. This is due to the temperature inversion caused by radiative cooling on the Earth's surface. Heat from the sun during the day causes its temperature to rise and when the sun sets during the night, its temperature cools down. Recently, a research team has demonstrated a daytime radiative cooling effect which exhibits lower temperatures than its surroundings even during the day.
  • Oct 20, 2020 2:55:43 PM
    A new study by a bevy of expert mosquito researchers offers an important warning to consumers: Products claiming to reduce mosquito populations with salt-water solutions are ineffective. In a series of lab tests using nine mosquito species, researchers found no evidence that adult mosquitoes are killed by salt ingested at concentrations used in several popular mosquito-control products.
  • Oct 20, 2020 2:55:42 PM
    Astrophysicists have discovered a series of telltale shell-like formations of stars in the vicinity of the Virgo constellation, evidence of a radial merger between a dwarf galaxy and the Milky Way, and the first such 'shell structures' to be found in the Milky Way.
  • Oct 20, 2020 2:55:38 PM
    Researchers developed an integrated hydrologic computer model to evaluate the impact of different types of wastewater disposal facilities on the Edwards Aquifer, the primary water source for San Antonio and its surrounding communities. The research results will guide authorities on what actions to take to protect the quality and quantity of water entering the aquifer.
  • Oct 20, 2020 2:55:36 PM
    Researchers have created a surface that repels every other element of human blood except an elusive cytokine critical to understanding the progress of COVID-19 in individual patients.
  • Oct 20, 2020 2:55:30 PM
    Over the past three decades, the depths of the Antarctic Weddell Sea have warmed five times faster than the rest of the ocean at depths exceeding 2,000 meters.
  • Oct 20, 2020 2:55:26 PM
    The coronavirus SARS-CoV-2 is known to infect cells via the receptor ACE2. Researchers have now identified neuropilin-1 as a factor that can facilitate SARS-CoV-2 entry into the cells' interior. Neuropilin-1 is localized in the respiratory and olfactory epithelia.
  • Oct 20, 2020 2:55:24 PM
    Biologists have discovered how tomato plants identify Cuscuta as a parasite. The plant has a protein in its cell walls that is identified as 'foreign' by a receptor in the tomato.
  • Oct 20, 2020 2:55:22 PM
    Researchers have potentially identified what makes SARS-CoV-2 highly infectious and able to spread rapidly in human cells. The findings describe how the virus's ability to infect human cells can be reduced by inhibitors that block a newly discovered interaction between virus and host, demonstrating a potential anti-viral treatment.
  • Oct 20, 2020 12:17:43 PM
    Having subtler symptoms, a form of epilepsy that affects only one part of the brain often goes undiagnosed long enough to cause unexpected seizures that contribute to car crashes, a new study finds.
  • Oct 20, 2020 12:17:40 PM
    Older adults with higher physical activity and lower sitting time have better overall physical and mental health, according to a new study.
  • Oct 20, 2020 12:17:37 PM
    Mussels, barnacles, and snails are declining in the Gulf of Maine, according to a new article by biologists. Their 20-year dataset reveals that the populations' steady dwindling matches up with the effects of climate change on the region.
  • Oct 20, 2020 12:17:35 PM
    Membranes with microscopic pores are useful for water filtration. The effect of pore size on water filtration is well-understood, as is the role of ions, charged atoms, that interact with the membrane. For the first time, researchers have successfully described the impact water molecules have on other water molecules and on ions as part of the filtration mechanism. The researchers detail a feedback system between water molecules which opens up new design possibilities for highly selective membranes. Applications could include virus filters.
  • Oct 20, 2020 12:17:33 PM
    People with obsessive-compulsive disorder (OCD) report that the severity of symptoms was reduced by about half within four hours of smoking cannabis. After smoking cannabis, users with OCD reported it reduced their compulsions by 60%, intrusions, or unwanted thoughts, by 49% and anxiety by 52%. The study also found that higher doses and cannabis with higher concentrations of CBD were associated with larger reductions in compulsions.
  • Oct 19, 2020 8:49:47 PM
    Tropical cyclones, regionally known as hurricanes or typhoons, have been moving across ocean basins faster since 1982, according to a new study.
  • Oct 19, 2020 8:49:44 PM
    Scientists demonstrated the first use of a method called self-calibration to remove contamination from gravitational lensing signals. The results should lead to more accurate cosmological models of the universe.
  • Oct 19, 2020 8:49:42 PM
    Sex, age, and severity of disease may be useful in identifying COVID-19 survivors who are likely to have high levels of antibodies that can protect against the disease.
  • Oct 19, 2020 8:49:39 PM
    A recent report provides new evidence that fear and anxiety reflect overlapping brain circuits. The findings run counter to popular scientific accounts, highlighting the need for a major theoretical reckoning.
  • Oct 19, 2020 7:59:26 PM
    Researchers who analyzed thousands of documents covering a 300-year span of plague outbreaks in London, England, have estimated that the disease spread four times faster in the 17th century than it had in the 14th century.
  • Oct 19, 2020 7:59:22 PM
    A breakthrough study results in the restoration of retinal and visual functions of mice models suffering from inherited retinal disease.
  • Oct 19, 2020 7:59:20 PM
    For recreational fishing enthusiasts, the thrill of snagging their next catch comes with discovering what's hooked on the end of the line. In many freshwater streams and rivers -- across the central and eastern parts of the U.S. -- anglers are often catching a popular freshwater game fish: the smallmouth bass. Now, scientists have discovered a new level of biodiversity within that species.
  • Oct 19, 2020 7:59:18 PM
    New research has revealed that, in the mutually beneficial relationship between with the Hawaiian bobtail squid and the luminescent bacterium, Vibrio fischeri, an immune protein called 'macrophage migration inhibitory factor' is the maestro of daily rhythms.
  • Oct 19, 2020 7:57:59 PM
    Rocks from the Rio Grande continental rift have provided a rare snapshot of active geology deep inside Earth's crust, revealing new evidence for how continents remain stable over billions of years, according to a team of scientists.
  • Oct 19, 2020 6:55:55 PM
    Nanophotonics researchers have demonstrated a novel technique for modulating light at terahertz frequencies with plasmonic metasurfaces.
  • Oct 19, 2020 6:55:51 PM
    The sign of a healthy personal relationship is one that is equally mutual - where you get out just as much as you put in. Nature has its own version of a healthy relationship. A team of researchers investigated these interactions, known as mutualisms, and why they are so critical for healthy environments.
  • Oct 19, 2020 6:55:49 PM
    New research shows that as species across the world adjust where they live in response to climate change, they will come into competition with other species that could hamper their ability to keep up with the pace of this change.
  • Oct 19, 2020 6:55:46 PM
    Just like humans, microbes have equipped themselves with tools to recognize and defend themselves against viral invaders. In a continual evolutionary battle between virus and host, CRISPR-Cas act as a major driving force of strain diversity in host-virus systems.
  • Oct 19, 2020 6:55:44 PM
    The development of a new method to make non-volatile computer memory may have unlocked a problem that has been holding back machine learning and has the potential to revolutionize technologies like voice recognition, image processing and autonomous driving.
  • Oct 19, 2020 5:37:00 PM
    Engineers have demonstrated how a deep learning algorithm can be applied to a conventional computerized tomography (CT) scan in order to produce images that would typically require a higher level of imaging technology known as dual-energy CT.
  • Oct 19, 2020 5:36:58 PM
    A signaling system implicated in liver fibrosis and immune activation is better understood thanks to this creative chemical fishing lure.
  • Oct 19, 2020 5:36:52 PM
    A recent report lays out gaps in the biology education field and proposes leveraging an existing research coordination network called Equity and Diversity in Undergraduate STEM (EDU-STEM) to tackle them.
  • Oct 19, 2020 5:36:48 PM
    Twenty years after the release of the human genome, the genetic 'blueprint' of human life, an international research team has now mapped the first draft sequence of the human proteome.
  • Oct 19, 2020 5:36:46 PM
    When the air outside is bad, office workers are more likely to order food delivery than go out for lunch, which in turn increases plastic waste from food packaging, according to a study by researchers from the National University of Singapore.
  • Oct 19, 2020 5:36:44 PM
    Two prominent early intervention models for toddlers with autism show a very similar impact, whether delivered at 15-hours or 25-hours per week intensities, a study has found.
  • Oct 19, 2020 4:55:37 PM
    Artificial intelligence isn't perfect. In fact, it's only as good as the methods and data built into it. Researchers have detailed a new approach to artificial intelligence that builds uncertainty, error, physical laws, expert knowledge and missing data into its calculations and leads ultimately to much more trustworthy models.
  • Oct 19, 2020 4:55:34 PM
    Researchers have developed and validated predictive criteria for early identification of COVID-19 patients who are developing hyperimmune responses, raising the possibility for early therapeutic intervention.
  • Oct 19, 2020 4:55:24 PM
    Using luminescence dating of ancient river sediments, a new study presents evidence for river activity at Nal Quarry in the central Thar Desert starting from approx. 173 thousand years ago. These findings represent the oldest directly dated phase of river activity in the region and indicate Stone Age populations lived in a distinctly different Thar Desert landscape than we encounter today.
  • Oct 19, 2020 4:55:22 PM
    A chip-based technology that modulates intensive sound pressure profiles with high resolution opens up new possibilities for ultrasound therapy.