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Science News Archive September 2019 - Page 9


Page 9 of 43

Brain stimulation prevents anxiety-induced decrease in motor performances

Researchers discover a new neural mechanism involving the dorsal anterior cingulate cortex that explains how anxiety deteriorates physical performance. Transcranial magnetic stimulation to this region rescues performance deterioration, providing a potential therapeutic strategy for athletes and musicians.

We are all mutants, more or less

A new study published in eLife shows that children inherit a varying number of genetic mutations from their parents, with older fathers passing on more mutations to their offspring. The study analyzed data from 603 individuals from 33 three-generation families and found significant variability in mutation rates among families.

Impostor syndrome is more common than you think; Study finds best way to cope with it

A new study by Brigham Young University researchers found that 20% of college students experience strong feelings of impostorism. Seeking social support from individuals outside their major is a highly effective way to reduce these feelings, as opposed to seeking support within the same academic group. The study also highlights the imp...

SourceBrigham Young University·JournalJournal of Vocational Behavior·DateSep 24, 2019

Converting absorbed photons into twice as many excitons: Successful high-efficiency energy conversion with organic monolayer on gold nanocluster surface

A research group converts absorbed photons into twice as many excitons with an organic monolayer on a gold nanocluster surface, achieving high-efficiency energy conversion. The researchers also found that the newly formed excitons have a significantly longer lifetime compared to conventional surfaces.

SourceKobe University·JournalJournal of the American Chemical Society·DateSep 24, 2019

Some high-cholesterol genes differ between countries

A new UCL-led study found that some genes predicting high cholesterol don't apply to people from Uganda as they do in European populations. The researchers investigated genetic variants affecting blood fat levels and found that only 10% of markers were implicated in cardiovascular risk factors among Ugandan participants.

SourceUniversity College London·JournalNature Communications·DateSep 24, 2019

Outcomes of birth options after a previous cesarean section

A large cohort study found attempting a vaginal birth after previous cesarean section increases the risk of serious maternal complications, including uterine rupture and sepsis. The study suggests that planning another cesarean may be a safer option for women with a history of cesarean section.

SourcePLOS·JournalPLOS Medicine·DateSep 24, 2019

Outer hair cells regulate ear's sensitivity to sound

In a study published in eLife, researchers found that outer hair cells adjust the sensitivity of neighboring inner hair cells to sound levels rather than amplifying them. This discovery could lead to better interventions to protect hearing and develop new ways to prevent hearing loss.

SourceeLife·DateSep 24, 2019

Eyeballing a black hole's mass

Astrophysicists from the Moscow Institute of Physics and Technology have devised a new way to indirectly measure the mass of a black hole, testing it on the Messier 87 active galaxy. The method combines theoretical modeling, computer calculations, and telescope observations to estimate black hole mass and spin.

SourceMoscow Institute of Physics and Technology·JournalMonthly Notices of the Royal Astronomical Society·DateSep 24, 2019

Commit a crime? Loved ones got your back

A recent University of Michigan study reveals that people tend to prioritize protecting close relationships over reporting immoral acts, even in cases of theft and sexual harassment. Researchers found that this bias can be attenuated by adopting a psychologically distanced perspective.

SourceUniversity of Michigan·JournalPersonality and Social Psychology Bulletin·DateSep 24, 2019

Large-scale enhanced recovery program improves outcomes for bariatric surgery patients

A large-scale implementation of an enhanced recovery program (ERP) reduced rates of extended hospitalization for bariatric surgery patients by nearly half. The protocol, known as ENERGY, improved patient outcomes through measures such as minimizing fluid overload and implementing opioid-sparing pain management strategies.

SourceAmerican College of Surgeons·JournalSurgery for Obesity and Related Diseases·DateSep 24, 2019