158 articles from MONDAY 1.8.2022
Enzyme, proteins work together to tidy up tail ends of DNA in dividing cells
Researchers at the University of Wisconsin–Madison have described the way an enzyme and proteins interact to maintain the protective caps, called telomeres, at the end of chromosomes, a new insight into how a human cell preserves the integrity of its DNA through repeated cell division.
The many versions of a female scientist
- ScienceDaily
- 22/8/1 19:31
Depictions of women in science, technology, engineering and mathematics (STEM) are powerful sources of inspiration for young women who aspire to a career in those fields. But stereotypes of female scientists persist, and we have some way to go to vanquish them, say the authors of a new paper.
Advancing dynamic brain imaging with AI
- ScienceDaily
- 22/8/1 19:31
New research introduces a novel, AI-based dynamic brain imaging technology alternative which could map out rapidly changing electrical activity in the brain with high speed, high resolution, and low cost.
Study finds nickelate superconductors are intrinsically magnetic
Electrons find each other repulsive. Nothing personal—it's just that their negative charges repel each other. So getting them to pair up and travel together, like they do in superconducting materials, requires a little nudge.
Iron buildup in brain linked to higher risk for movement disorders
- ScienceDaily
- 22/8/1 19:31
Researchers report that individuals with two copies of a gene mutation show evidence of substantial iron buildup in regions of the brain, raising risk for movement disorders like Parkinson's disease.
New 3D printing process is faster and more precise than conventional methods
- ScienceDaily
- 22/8/1 19:31
Engineers have created a way to 3D print large and complex parts at a fraction of the cost of current methods.
New molecule may prevent age-related diseases and increase life expectancy and wellness, study suggests
- ScienceDaily
- 22/8/1 19:31
Researchers have identified a group of molecules that enable cells to repair damaged components, making it possible for those tissues to retain proper function.
Using iPSCs, researchers create cells that represent the airways of cystic fibrosis patients
- ScienceDaily
- 22/8/1 19:31
Cystic fibrosis (CF) is caused by a mutation of the CFTR gene. While there are many hundreds of known mutations, not all of them are currently treatable which means a significant number of CF patients lack targeted therapies. In an effort to identify new treatments for these patients, researchers from Boston University School of Medicine (BUSM) set out to use blood cells from individuals with CF...
New dog food? Study shows Fido's gut bacteria could turn over within a week
- ScienceDaily
- 22/8/1 19:31
When a dog starts a new diet, the community of microbes in its gut changes. Wallflower bacteria multiply to dominate the scene, with the old guard slinking off in defeat. As microbial species jostle for control, their metabolic byproducts, many of which are critical for Fido's overall health, change as well. The dynamic dance between nutrients, microbes, and their chemical products is well...
Researchers develop miniature lens for trapping atoms
Atoms are notoriously difficult to control. They zigzag like fireflies, tunnel out of the strongest containers and jitter even at temperatures near absolute zero.
Scientists uncover mechanism that shapes centromere distribution
- ScienceDaily
- 22/8/1 19:31
Since the 1800s, scientists have observed the configuration of centromeres -- a special chromosomal region that is vital during certain types of cell division -- in the nucleus. Up until this point, however, the determining mechanisms and the biological significance of centromere distribution were poorly understood. A team has recently proposed a two-step regulatory mechanism that shapes...
Fewer people tried to quit smoking during COVID-19 pandemic, study shows
- ScienceDaily
- 22/8/1 19:31
A new study shows serious smoking cessation activity declined among adults in the United States immediately after the onset of COVID-19 and persisted for over a year. Declines in attempts to quit smoking were largest among persons experiencing disproportionately negative outcomes during COVID-19, including Black people, people with comorbidities, middle-aged people, and lower educated people.
Variant type and patient sex affect molnupiravir efficacy, study finds
- ScienceDaily
- 22/8/1 19:30
SARS-CoV-2 variants of concern and the biological sex of patients affect the efficacy of molnupiravir, the first orally available drug approved for outpatient use against COVID-19, according to a new study.
When heart-assisting implants could save a life, patients who are Black or female don't get them as often
- ScienceDaily
- 22/8/1 19:30
Black people and women with severe heart failure who might be good candidates for surgery to implant a heart-assisting device have a lower chance of actually getting that operation than white patients, or male patients, a new study finds.
Fast-acting immune cells provide powerful protection against stroke
- ScienceDaily
- 22/8/1 19:30
CD8+ regulatory-like T cells reach the brain within 24 hours after stroke onset, where they release molecules that provide direct neuroprotective effects, as well as limit inflammation and secondary brain damage.
Engineers repurpose 19th-century photography technique to make stretchy, color-changing films
- ScienceDaily
- 22/8/1 19:30
A new technique opens a door to manufacturing of pressure-monitoring bandages, shade-shifting fabrics, or touch-sensing robots
Life expectancy drops for Native Americans due to COVID-19
- ScienceDaily
- 22/8/1 19:30
The pandemic reduced Native American life expectancy at birth from the already low 72 years in 2019 to about 67 years in 2020 and about 65 years in 2021 for both sexes combined.
Nickelate superconductors are intrinsically magnetic
- ScienceDaily
- 22/8/1 19:30
Scientists embedded elementary particles called muons into a many-layered nickel oxide superconductor to learn more about its magnetic properties. They discovered that waves of flip-flopping electron spins create magnetic excitations that sweep through the nickel layer of the compound whether it's superconducting or not. This is in sharp contrast to what happens in the best-known family of...
US hails ‘Antipodean Adventure’ and Australia silent as second spy satellite set to launch from New Zealand
Some in space industry bewildered by Australia’s lack of fanfare about the launch of the satellites, which will be used to collect intelligence for allied nationsGet our free news app, morning email briefing and daily news podcastA second spy satellite built by Australia and the United States is scheduled for liftoff on Tuesday from a launch site in New Zealand.The first of the two satellites,...
Most but not all Texas coaches say they'll plan for climate change
A survey of coaches and athletic officials in Texas indicates many of them would be wise to think harder about the risks their students face as the climate changes, according to Rice University researchers who conducted the statewide study.
Signaling 'stressed-out' plants
A plant scientist from the University of Missouri has discovered a new way of measuring stress in plants, which comes at a time when plants are experiencing multiple stressors from heat, drought and flooding because of extreme weather events.
VegSense makes sense for forest studies
Rice researchers set up a Microsoft HoloLens as a mixed-reality sensor to feed VegSense, their application to measure understory vegetation, plant life that grows between the forest canopy and floor.
Engineers repurpose 19th-century photography technique to make stretchy, color-changing films
Imagine stretching a piece of film to reveal a hidden message. Or checking an arm band's color to gauge muscle mass. Or sporting a swimsuit that changes hue as you do laps. Such chameleon-like, color-shifting materials could be on the horizon, thanks to a photographic technique that's been resurrected and repurposed by MIT engineers.
The many versions of a female scientist
Depictions of women in science, technology, engineering and mathematics (STEM) are powerful sources of inspiration for young women who aspire to a career in those fields. But stereotypes of female scientists persist, and we have some way to go to vanquish them. So says Alexandra Phillips, a researcher at UC Santa Barbara's National Center for Ecological Analysis and Synthesis (NCEAS), in a paper...
Profits over planet? Experts eye companies at crucial moment for climate change fight
June 1 marked the start of another perilous hurricane season in the eastern United States.