Add BrightSurf on Google Email

Science News Archive 2021 - Page 50


Page 50 of 510

Flavoured vapes less harmful to young people than smoking, and could help teen smokers quit

A systematic review of over 500,000 under 18s found that flavoured vapes are an important aspect of vaping enjoyed by young people, potentially encouraging them to switch from tobacco smoking to less harm vaping. However, the study warns that more needs to be done to prevent young non-smokers from being attracted to vaping.

SourceUniversity of East Anglia·JournalAddiction·TypeSystematic review·DateNov 16, 2021

Commonly prescribed treatment regimen after stent procedures may be outdated

A recent study published in Circulation found that patients receiving a combination of antiplatelet drugs for many months (up to 2.5 years) after stent procedures may not receive the full benefit of treatment. The researchers compared characteristics of 8,864 patients from an older trial to 568,540 contemporary patients and determined ...

SourceMassachusetts General Hospital·JournalCirculation·TypeObservational study·DateNov 16, 2021

Simultaneous repair of heart valves may benefit some adults

A two-year follow-up of participants found that those who had both their mitral valve and tricuspid valve repaired at the same time experienced better outcomes, including less progression to moderate or severe leakage. This study provides high-level evidence for surgeons on how to perform tricuspid valve repair in these patients.

SourceJohns Hopkins Medicine·JournalNew England Journal of Medicine·DateNov 16, 2021

Unvaccinated: The kids aren’t alright

A study found that vaccination rates among Indian children improved significantly between 1992 and 2016, with a 70% drop in child mortality from vaccine-preventable diseases. However, zero-dose children remained concentrated among disadvantaged groups, including low-income households and mothers with limited education.

SourceUniversity of Montreal·JournalThe Lancet·TypeData/statistical analysis·DateNov 16, 2021

A frugal way to study complex systems and materials

Researchers at Stanford University have developed a new method for rapidly prototyping complex geometries mirroring symmetries present in problems of interest. This technique uses a mixture of water and propylene glycol, along with a slippery surface, to create droplet lattices that can be manipulated and observed over time.

SourceStanford University·JournalProceedings of the National Academy of Sciences·DateNov 16, 2021

An ironclad future

Researchers at the University of Basel have developed a new family of iron-based sensitizers for dye-sensitized solar cells, promising a low-cost supplement to traditional photovoltaic systems. The new materials achieve overall efficiency of 1 percent, but represent a milestone in further research and development.

SourceUniversity of Basel·JournalDalton Transactions·TypeExperimental study·DateNov 16, 2021

Increased religious competition worsens armed conflict in Colombia

A new study by the University of Kent's School of Economics found that religious competition substantially increases the probability of conflict-related violence in Colombia. The presence of a new religion group makes potential contributors or soldiers more scared, leading to violent action from armed groups.

SourceUniversity of Kent·JournalJournal of Economic Behavior & Organization·TypeObservational study·DateNov 16, 2021

OSU study yields a first in fossil research: Seeds sprouting from an amber-encased pine cone

Researchers have uncovered the first fossil evidence of a rare botanical condition known as precocious germination, where seeds sprout before leaving the fruit. A 40-million-year-old pine cone encased in Baltic amber shows embryonic stems emerging from the seeds, providing insight into plant biology and ecology.

SourceOregon State University·JournalHistorical Biology·TypeObservational study·DateNov 16, 2021

Turning the sticky to slippery

A new coating developed by researchers at the University of Illinois Chicago uses thermoresponsive properties to create a hygroscopic slippery layer that prevents harmful substances from coming into contact with surfaces. This technology delays ice and frost formation, outperforming commercial products by up to ten times.

SourceAmerican Physical Society·JournalAdvanced Materials·DateNov 16, 2021

Woodland and hedgerow creation can play crucial role in action to reverse declines in pollinators

A major new study found that woodland and hedgerow creation can support higher numbers of pollinators, including bees, hoverflies, and butterflies. The survey, which covered hundreds of sites across Wales, revealed the importance of carefully managed habitats in land management incentive schemes.

SourceUK Centre for Ecology & Hydrology·JournalJournal of Applied Ecology·TypeObservational study·DateNov 16, 2021

Is watching believing?

A new study by MIT researchers finds that video clips have a modestly larger impact on political persuasion than the written word, but only by one-third. Participants were more likely to believe events occurred when shown in a video, but this advantage was limited to changing attitudes and behavior.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateNov 16, 2021

Game theory and economics show how to steer evolution in a better direction

Researchers use game theory and economics to steer evolution in a better direction, identifying conditions for improved outcomes through policy changes and coordination. The study provides a mathematical formula to determine when evolution managers will have sufficient incentive to steward biological resources.

SourcePLOS·JournalPLOS Biology·TypeComputational simulation/modeling·DateNov 16, 2021

Mason researchers receive funding for project aimed at advancing content-integrated education for English learners with a STEM focus (ACE-STEM)

George Mason University researchers will provide a professional development program to enhance Northern Virginia teachers' content-integrated instruction for culturally and linguistically diverse students. The ACE-STEM project aims to improve STEM literacy development and family literacy programs for English learners.

In a cross-adoption experiment researchers at Tel Aviv University found that adopted baby fruit bats behave like their adoptive mothers

Researchers at Tel Aviv University conducted a cross-adoption experiment with fruit bat pups to determine whether boldness is genetic or learned. The findings indicate that the pups behave like their adoptive mothers, not biological mothers, suggesting that boldness is an acquired trait passed on through mother's milk.

SourceTel-Aviv University·JournalBMC Biology·DateNov 16, 2021

A new approach to identify mammals good at learning sounds

A recent study found that most vocal learners, such as dolphins and whales, sound higher than expected based on their body size, not lower. This challenges the idea that faking body size is linked to vocal learning and suggests a different evolutionary scenario for vocal communication in mammals.

SourceMax Planck Institute for Psycholinguistics·JournalPhilosophical Transactions of the Royal Society B Biological Sciences·TypeObservational study·DateNov 16, 2021

Outcomes for hospitalized COVID-19 patients taking immunosuppressive medications similar to non-immunosuppressed patients

A nationwide study found that hospitalized COVID-19 patients taking immunosuppressive medications did not have a significantly increased risk of dying from COVID-19 or being put on a ventilator compared to non-immunosuppressed patients. However, patients taking rituximab were at a substantially increased risk of death.

SourceJohns Hopkins Bloomberg School of Public Health·JournalThe Lancet Rheumatology·DateNov 16, 2021

Do you need a COVID-19 booster shot?

A new study from the University of Georgia found that vaccination results in a more robust immune response than natural infection. Even with waning antibodies, vaccinated individuals still have protective immunity against severe disease and hospitalization.

SourceUniversity of Georgia·JournalFrontiers in Immunology·DateNov 16, 2021

Similar follow-up after telehealth and office visits

The study of 2.2 million primary care visits found similar rates of follow-up care for all three visit types, including emergency department visits and hospitalizations. Virtual visits were shown to be a convenient and safe way to address some primary care needs without generating many follow-up office visits.

SourceKaiser Permanente·JournalJAMA Network Open·DateNov 16, 2021

UCLA scientists make strides toward an ‘off-the-shelf’ immune cell therapy for cancer

Researchers produce large quantities of powerful cancer-fighting iNKT cells using stem cell engineering and organoid technology, offering a potential solution for mass-producing an off-the-shelf immune cell therapy. The therapy, which uses hematopoietic stem cell-engineered iNKT cells, has been shown to be effective in killing multiple...

SourceUniversity of California - Los Angeles Health Sciences·JournalCell Reports Medicine·TypeExperimental study·DateNov 16, 2021