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36 articles from ScienceDaily
Genomic analysis reveals many animal species may be vulnerable to SARS-CoV-2 infection
- ScienceDaily
- 20/8/21 22:14
Analysis of ACE2, the main receptor that SARS-CoV-2 uses to bind and enter cells, across 410 vertebrate species reveals that many are potentially susceptible to infection by the novel coronavirus. They include a number of endangered and threatened species, notably apes and old world primates. The study could also reveal potential intermediate hosts and animal models for the virus.
Nutrients make coral bleaching worse
- ScienceDaily
- 20/8/21 21:57
Nutrients can aggravate the already negative effects of climate change on corals to trigger mass coral bleaching. A study suggests ecosystem managers can reduce the impacts of coral bleaching by implementing strategies to reduce nutrient stress in areas subject to thermal stress.
Nasal vaccine against COVID-19 prevents infection in mice
- ScienceDaily
- 20/8/21 21:57
Scientists have developed a vaccine that targets the SARS-CoV-2 virus, can be given in one dose via the nose and is effective in preventing infection in mice susceptible to the novel coronavirus. The investigators next plan to test the vaccine in nonhuman primates and humans to see if it is safe and effective in preventing COVID-19 infection.
Arctic ocean moorings shed light on winter sea ice loss
- ScienceDaily
- 20/8/21 21:57
The eastern Arctic Ocean's winter ice grew less than half as much as normal during the past decade, due to the growing influence of heat from the ocean's interior, researchers have found.
The age of Earth's inner core revised
- ScienceDaily
- 20/8/21 21:57
By creating conditions akin to the center of Earth inside a laboratory chamber, researchers have improved the estimate of the age of our planet's solid inner core, putting it at 1 billion to 1.3 billion years old.
Early NK cell-mediated immune response may contribute to severe COVID-19
- ScienceDaily
- 20/8/21 21:57
Researchers may have come one step closer toward understanding how the immune system contributes to severe COVID-19. In a new study, researchers show that so-called natural killer (NK) cells were strongly activated early after SARS-CoV-2 infection but that the type of activation differed in patients with moderate and severe COVID-19. The discovery contributes to our understanding of development of...
Researchers generate attosecond light from industrial laser
- ScienceDaily
- 20/8/21 21:57
Researchers are making the cutting-edge field of attosecond science more accessible to researchers from all disciplines.
Gaps in early surveillance of coronavirus led to record-breaking US trajectory
- ScienceDaily
- 20/8/21 21:57
New research provides insight into how limited testing and gaps in surveillance during the initial phase of the COVID-19 epidemic resulted in so many cases going undetected.
Tiny engineered therapeutic delivery system safely solves genetic problems in mice
- ScienceDaily
- 20/8/21 20:13
Inserting genetic material into the body to treat diseases caused by gene mutations can work, scientists say - but getting those materials to the right place safely is tricky. Scientists now report that the lipid-based nanoparticles they engineered, carrying two sets of protein-making instructions, showed in animal studies that they have the potential to function as therapies for two genetic...
Ozone across northern hemisphere increased over past 20 years
- ScienceDaily
- 20/8/21 20:13
In a first-ever study using ozone data from commercial aircraft, researchers found that levels of the pollutant in the lowest part of Earth's atmosphere have increased across the Northern Hemisphere over the past 20 years. That's even as tighter controls on emissions of ozone precursors have lowered ground-level ozone in some places, including North America and Europe.
Bioluminescent tag to detect DNA break repair
- ScienceDaily
- 20/8/21 20:11
A new bioluminescent reporter that tracks DNA double stranded break (DSB) repair in cells has been developed.
Hubble snaps close-up of celebrity comet NEOWISE
- ScienceDaily
- 20/8/21 19:41
The Hubble Space Telescope has snapped the closest images yet of the sky's latest visitor to make headlines, comet NEOWISE, after it passed by the Sun. This is the first time Hubble has photographed a comet of this brightness at such resolution after this close of a pass by the Sun.
Long-acting, injectable drug could strengthen efforts to prevent, treat HIV
- ScienceDaily
- 20/8/21 19:41
Scientists have developed an injectable drug that blocks HIV from entering cells. They say the new drug potentially offers long-lasting protection from the infection with fewer side effects. The drug, which was tested in non-human primates, could eventually replace or supplement components of combination drug 'cocktail' therapies currently used to prevent or treat the virus.
Cliff collapse reveals 313-million-year-old fossil footprints in Grand Canyon National Park
- ScienceDaily
- 20/8/21 18:07
Paleontological research has confirmed a series of recently discovered fossils tracks are the oldest recorded tracks of their kind to date within Grand Canyon National Park. In 2016, a geology professor was hiking with his students when he made a surprising discovery. Lying next to the trail, in plain view of the many hikers, was a boulder containing conspicuous fossil footprints.
Understanding how birds respond to extreme weather can inform conservation efforts
- ScienceDaily
- 20/8/21 18:00
How do different bird species respond to extreme weather events that occur for different amounts of time, ranging from weekly events like heat waves to seasonal events like drought? And how do traits unique to different species -- for example, how far they migrate or how commonly they occur -- predict their vulnerability to extreme weather?
Unveiling rogue planets with NASA's Roman Space Telescope
- ScienceDaily
- 20/8/21 17:37
New simulations show that NASA's Nancy Grace Roman Space Telescope will be able to reveal myriad rogue planets -- freely floating bodies that drift through our galaxy untethered to a star.
A new molecular guardian of intestinal stem cells
- ScienceDaily
- 20/8/21 16:39
Researchers investigated how intestinal stem cells are controlled at the molecular level to remain stem cells or to develop into one of various intestinal cells. By studying mice lacking the protein IRF2, the researchers found a blunted regenerative response and an increased development of immature Paneth cells upon intestinal inflammation and infection. These findings help clarify the molecular...
New insights into lung tissue in COVID-19 disease
- ScienceDaily
- 20/8/21 16:39
Researchers have developed a new three-dimensional imaging technique to visualize tissue damage in severe COVID-19.
Sea-level rise linked to higher water tables along California coast
- ScienceDaily
- 20/8/21 16:39
Researchers modeled the effects of rising sea levels along the California coast. While results varied with local topography, the study indicates an increased threat to populated areas already at risk from rising water tables, and the possibility of flooding in unexpected inland areas.
Spinning black hole powers jet by magnetic flux
- ScienceDaily
- 20/8/21 16:38
A new letter has been found in the mysterious alphabet of black holes.
'Selfies' could be used to detect heart disease
- ScienceDaily
- 20/8/21 16:38
Sending a 'selfie' to the doctor could be a cheap and simple way of detecting heart disease, according to researchers. Their study is the first to show that it's possible to use a deep learning computer algorithm to detect coronary artery disease (CAD) by analyzing four photographs of a person's face.
Skat and poker: More luck than skill?
- ScienceDaily
- 20/8/21 16:38
Chess requires playing ability and strategic thinking; in roulette, chance determines victory or defeat, gain or loss. But what about skat and poker? Are they games of chance or games of skill in game theory? This classification also determines whether play may involve money. Economists have studied this question and developed a rating system similar to the Elo system used for chess.
More than politics or age, psychological disease avoidance linked to preventative behavior, study finds
- ScienceDaily
- 20/8/21 16:38
More than other factors, strong feelings of germ aversion and pathogen disgust are significantly associated with concern about COVID-19 and preventative behavior, according to a new study. The findings are part of a year-long examination of how behavior and social attitudes change, and what factors influence those changes, when people in the United States are faced with the threat of widespread...
Electron movements in liquid measured in super-slow motion
- ScienceDaily
- 20/8/21 15:49
Electrons are able to move within molecules, for example when they are excited from outside or in the course of a chemical reaction. For the first time, scientists have now succeeded in studying the first few dozen attoseconds of this electron movement in a liquid.
Why babies don't always remember what they have learned
- ScienceDaily
- 20/8/21 15:48
If and how babies recall what they have learned depends on their mood: what they've learned when feeling calm is inaccessible when they're acitive and vice versa. This was shown in a study with 96 children aged nine months.