6,170 articles mezi dny 1.8.2020 a 31.8.2020
How 'swapping bodies' with a friend changes our sense of self
- ScienceDaily
- 20/8/26 17:03
A new study shows that, when pairs of friends swapped bodies in a perceptual illusion, their beliefs about their own personalities became more similar to their beliefs about their friends' personalities. The findings suggest that this tie between our psychological and physical sense of self is involved in memory function: when our mental self-concept doesn't match our physical self, our memory can...
Antarctica ice shelves vulnerable to meltwater that could cut ice 'like a knife,' study finds
Meltwater could undermine the walls of ice holding back Antarctica's glaciers, scientists reported on Wednesday, a finding that underscores concern about the potential for a significant sea level rise. The ice shelves, formed over thousands of years, serve as dams to prevent much of the continent's snow and ice from flowing toward the ocean. Scientists found that about 60% of the ice shelf area...
Antarctica: 60% of ice shelves at risk of fracture, research suggests
Collapse of shelves would accelerate loss of Antarctic ice sheet and increase sea-level riseApproximately 60% of Antarctica’s ice shelves could be vulnerable to fracture, accelerating the loss of the Antarctic ice sheet and increasing sea-level rise, according to a paper.Antarctica’s ice shelves, floating extensions of the ice sheet, help slow the flow of ice into the ocean. But if these...
How cold was the ice age? Researchers now know
A University of Arizona-led team has nailed down the temperature of the last ice age—the Last Glacial Maximum of 20,000 years ago—to about 46 degrees Fahrenheit (7.8 C).
How plants shut the door on infection
Plants have a unique ability to safeguard themselves against pathogens by closing their pores—but until now, no one knew quite how they did it. Scientists have known that a flood of calcium into the cells surrounding the pores triggers them to close, but how the calcium entered the cells was unclear.
Antarctic ice shelves vulnerable to sudden meltwater-driven fracturing, says study
A new study says that many of the ice shelves ringing Antarctica could be vulnerable to quick destruction if rising temperatures drive melt water into the numerous fractures that currently penetrate their surfaces. The shelves help slow interior glaciers' slide toward the ocean, so if they were to fail, sea levels around the world could surge rapidly as a result. The study appears this week in the...
Cosmic rays may soon stymie quantum computing
The practicality of quantum computing hangs on the integrity of the quantum bit, or qubit.
Link between cognitive impairment and worse prognosis in heart failure patients
- ScienceDaily
- 20/8/26 16:42
Despite new treatments such as modern medicines and defibrillators, the mortality rate with heart failure is still high and the prognosis worse than for certain cancers. A new study now shows a link between cognitive impairment and an increased risk for rehospitalization, or an early death, in heart failure patients.
Moderna COVID-19 vaccine appears to work as well in older adults in early study
The latest data from an early Phase I study includes an analysis from 20 additional people detailing how the vaccine performed in older adults. The analysis looked at subjects given the 100-microgram dose being tested in the much larger Phase III trial. Moderna said the immune responses in those aged between ages 56 and 70, above age 70 and those 18 to 55-years-old were...
New study warns: We have underestimated the pace at which the Arctic is melting
- ScienceDaily
- 20/8/26 16:40
Arctic sea ice is melting more quickly than once assumed. Today's climate models have yet to incorporate the steep rise in temperatures that have occurred over the past 40 years.
Changing ties that naturally bind: How information, disease, and social evolution are linked
Animals use social information for a variety of reasons, including identifying new foraging areas or of threats from predators.
Atmospheric scientists study fires to resolve ice question in climate models
When fossil fuel or biomass burns, soot—also known as black carbon—fills the air. Black carbon is an important short-term climate driver because it absorbs solar energy and can affect the formation and composition of clouds.
Sandwich catalysts offer higher activity and durability
The sandwich is a food concocted by the 18th-centutry nobles to play card games uninterrupted. Meat or vegetables were layered then tucked between bread to be eaten quickly while engaged in the game. This efficient food also delivered ample calories and nutrition. A POSTECH research team has discovered that layering like the sandwich is an excellent way to obtain hydrogen energy, an alternative...
Confusion over face masks as some schools in England could relax rules within days
Government criticised as schools to get only 10 Covid testing kits for start of term next weekCoronavirus – latest updatesSee all our coronavirus coverageMore than 300,000 students in England will be required to wear face coverings when schools reopen next week – although thousands of pupils could be told within days that they are no longer mandatory.There was confusion among MPs after Gavin...
Novel alkaline hydrogel advances skin wound care
- ScienceDaily
- 20/8/26 16:16
Effective wound care requires the maintenance of optimal conditions for skin and tissue regeneration. Hydrogels provide many of these conditions, but not an alkaline environment. Now, in a breakthrough study, scientists have developed a new method that requires no specialized equipment and can be performed at room temperature to produce an alkaline hydrogel in five minutes, allowing its easy...
NBA playoff format is optimizing competitive balance by eliminating travel
- ScienceDaily
- 20/8/26 16:16
In addition to helping protect players from COVID-19, the NBA 'bubble' in Orlando may be a competitive equalizer by eliminating team travel. Researchers analyzing the results of nearly 500 NBA playoff games over six seasons found that a team's direction of travel and the number of time zones crossed were associated with its predicted win probability and actual game performance.
Atmospheric scientists study fires to resolve ice question in climate models
- ScienceDaily
- 20/8/26 16:16
Black carbon from fires is an important short-term climate driver because it can affect the formation and composition of clouds. Scientists are figuring out how.
Sandwich catalysts offer higher activity and durability
- ScienceDaily
- 20/8/26 16:16
A professor has developed a double-layered nanoporous platinum catalyst that activates hydrogen generation.
How are information, disease, and social evolution linked?
- ScienceDaily
- 20/8/26 16:16
In all social animals, gaining valuable information requires physical contact among individuals, an action that risks spreading contagion. New research describes the opposing evolutionary forces that give rise to the social networks of which we are a part. They developed a dynamic theoretical framework where individuals constantly update their social behaviors to reflect both the benefits and...
SARS-CoV-2 RNA detected in untreated wastewater from Louisiana
- ScienceDaily
- 20/8/26 16:16
Scientists have detected genetic material from SARS-CoV-2 in untreated wastewater samples collected in April 2020 from two wastewater treatment plants in Louisiana.
Seizures during menstrual cycle linked to drug-resistant epilepsy
- ScienceDaily
- 20/8/26 16:16
More frequent seizures during the menstrual cycle in women with genetic generalized epilepsy have been linked for the first time to drug-resistant epilepsy, when anti-seizure medications don't work, according to a new study that may help lead to tailored treatments.
Fear of missing out impacts people of all ages
- ScienceDaily
- 20/8/26 16:16
The social anxiety that other people are having fun without you, also known as FoMO, is more associated with loneliness, low self-esteem and low self-compassion than with age, according to a recent study.
Scientists use fruit peel to turn old batteries into new
- ScienceDaily
- 20/8/26 16:16
Scientists have developed a novel method of using fruit peel waste to extract and reuse precious metals from spent lithium-ion batteries in order to create new batteries. The scientists say that their waste-to-resource approach tackles both food waste and electronics waste, supporting the development of a circular economy with zero waste.
Domesticated chickens have smaller brains
- ScienceDaily
- 20/8/26 16:16
Researchers suggest a process by which the timid junglefowl from the rain forest could have become today's domesticated chicken. When the scientists selectively bred the junglefowl with least fear of humans for 10 generations, the offspring acquired smaller brains and found it easier to become accustomed to frightening but non-hazardous events. The results shed new light over how domestication may...
Tailored hardening of bulk metallic glass induced by 2-D gradient rejuvenation
A team at Tohoku University have perfected a new heat treatment technique with rapid heating and asymmetrical cooling processes in metallic glass. This technique enabled the team to induce a gradient of local glassy structure, bringing an apparent work hardening behavior.