- ScienceDaily
- 20/10/27 21:17
Scientists have discovered a massive detached coral reef in the Great Barrier Reef, measuring more than 500 meters high -- taller than the Empire State Building, the Sydney Tower and the Petronas Twin Towers.
Scientists have discovered a massive detached coral reef in the Great Barrier Reef, measuring more than 500 meters high -- taller than the Empire State Building, the Sydney Tower and the Petronas Twin Towers.
To build the machinery that enables bacteria to swim the flagellum is assembled piece by piece, ending with the helix called flagellar filament, composed of six different subunits called flagellins. Microbiologists have demonstrated that adding sugar to the flagellins is crucial for the flagellum's assembly and functionality. Among the six flagellins, one is the special one serving a signalling...
Across the western US, severe wildfires fueled by tinder-dry vegetation have already burned more than 3.2 million hectares (8 million acres) -- an area the size of Maryland -- as of the end of October, 2020, and nearly six times that area burned this year in Australia. And even though neither country's worst-ever fire year is not yet over, concerns are already mounting regarding the next hazard...
Scientists have shown that a potent antibody from a COVID-19 survivor interferes with a key feature on the surface of the coronavirus's distinctive spikes and induces critical pieces of those spikes to break off in the process.
The loss of huge ice masses can contribute to the warming that is causing this loss and further risks. A new study now quantifies this feedback by exploring long-term if-then-scenarios.
An international team of coastal scientists has dismissed suggestions that half the world's beaches could become extinct over the course of the 21st century.
New possibilities for future developments in electronic and optical devices have been unlocked by recent advancements in two-dimensional (2D) materials.
Researchers have discovered a new inflammatory disorder called vacuoles, E1 enzyme, X-linked, autoinflammatory and somatic syndrome (VEXAS), which is caused by mutations in the UBA1 gene. VEXAS causes symptoms that included blood clots in veins, recurrent fevers, pulmonary abnormalities and vacuoles (unusual cavity-like structures) in myeloid cells.
Scientists have recently scrutinized organic solar cells and derived design rules for light-absorbing dyes that can help to make these cells more efficient, while tailoring the absorption spectrum of the cells to the needs of the chosen application.
Do we always want people to show empathy? Not so, said researchers. A recently published article suggests that although empathy is often portrayed as a virtue, people who express empathy are not necessarily viewed favorably.
Treating cancer without debilitating side effects has long been the holy grail of oncologists, and researchers may have found it.
Some of the largest birds in history, called pelagornithids, arose a few million years after the mass extinction that killed off the dinosaurs and patrolled the oceans with giant wingspans for some 60 million years. A team of paleontologists has found two fossils -- each from individual pelagornithids with wingspans of 20 feet or more -- that show this gigantism arose at least 50 million years ago...
To meet the Paris Agreement's goal of preventing Earth's average temperature from rising more than 2 degrees Celsius above preindustrial level, one of the best options for the energy economy will involve a shift to 100% renewable energy using solar energy and other clean energy sources. Researchers describe a model developed to predict what is necessary for the solar industry to meet Paris...
Perovskite materials are increasingly popular as the active layer in solar cells, but internal forces in these materials cause distortions in their crystal structures, reducing symmetry and contributing to their intrinsic instability. Researchers examined the mechanisms at play, as well as several degradation factors that influence the performance of perovskite photovoltaics. They clarified the...
In a retrospective study of asymptomatic patients, all of whom had a negative 3-D mammogram within the previous 11 months, abbreviated MRI detected roughly 27 cancers per 1,000 women screened.
Using a new technique, a team of researchers has found tiny and previously undetectable 'hot spots' of extremely high stiffness inside aggressive and invasive breast cancer tumors. Their findings suggest, for the first time, that only very tiny regions of a tumor need to stiffen for metastasis to take place. Though still in its infancy, the researchers believe that their technique may prove useful...
Aerosol microdroplets do not appear to be extremely efficient at spreading the virus that leads to COVID-19. While the lingering microdroplets are certainly not risk-free, due to their small size they contain less virus than the larger droplets that are produced when someone coughs, speaks, or sneezes directly on us, said researchers.
Scientists have discovered why dividing a large population into multiple subpopulations that do not intermix can help contain outbreaks without imposing contact restrictions within those local communities.
A new study shows the disproportionate impact of COVID-19 on Hispanic groups within the United States, with the most severe outcomes, including death and intensive care, among Hispanic Black individuals.
New findings unveil that a 'hidden' layer of regulation by which the intrinsic dynamic ensemble of miRNA processing intermediates can direct the outcome of important biological processes in response to environmental and cellular stimuli in the absence of protein factors. If these processes go awry, then disease could result. Understanding the roles of miRNAs in disease is a needed step in finding...
Death rates from people with severe COVID-19 in hospital have dropped to around a half of the rate at the peak of the pandemic, new research has revealed.
Astronomers have identified one of the rarest known classes of gamma-ray emitting galaxies, called BL Lacertae, within the first 2 billion years of the age of the universe.
ALMA telescope conducts largest survey yet of distant galaxies in the early universe.
Understanding the role of antibiotic use patterns and patient transfers in the emergence of drug-resistant microbes is essential to crafting effective prevention strategies, suggests a new study.
Females are able to clear asymptomatic malaria infections at a faster rate than their male counterparts, says a new study.