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Science News Archive July 2023 - Page 33


Page 33 of 36

Scientists unlock the dog epigenome

Researchers have successfully mapped the dog epigenome, creating a high-quality reference map that provides insights into gene regulation and environmental influences. The study offers fresh perspectives on complex traits, genetic disorders, and diseases like cancer, with potential implications for human health.

SourceSeoul National University·JournalScience Advances·DateJul 5, 2023

Webb locates dust reservoirs in two supernovae

Researchers use Webb to detect large amounts of dust within supernova ejecta, supporting the theory that supernovae supply dust to the early universe. The study reveals over 5,000 Earth masses of dust in one supernova, rivaling previous measurements and suggesting dust can survive internal shocks.

SourceNASA/Goddard Space Flight Center·JournalMonthly Notices of the Royal Astronomical Society·DateJul 5, 2023

Practitioners report that greater integration of lifestyle medicine into their medical practice helps manage and reduce burnout

A study found that lifestyle medicine clinicians experienced a 43% decrease in burnout and reported positive impacts on professional satisfaction. Practitioners credited factors such as improved patient outcomes, increased patient satisfaction, and personal fulfillment for their reduced burnout.

SourceAmerican College of Lifestyle Medicine·JournalAmerican Journal of Health Promotion·DateJul 5, 2023

Five steps to a world of intelligent life

The study reveals five distinct brain types, each suited for its purpose, from a jellyfish's diffuse neural network to the human brain's reflective capabilities. Researchers suggest that autonomous machines can learn from coordination in bees, rapid thinking in birds, and single-mindedness in worms.

SourceMacquarie University·JournalProceedings of the Royal Society B Biological Sciences·TypeCommentary/editorial·DateJul 5, 2023

Treating childhood ADHD with stimulant meds not associated with increased substance use later in life, study finds

Researchers at the University of Pittsburgh School of Medicine found no evidence that prescription stimulant treatment in childhood increases the risk of substance use disorder (SUD) later in life. The study, published in JAMA Psychiatry, suggests that stimulants are an effective treatment for ADHD with few side effects.

SourceUniversity of Pittsburgh·JournalJAMA Psychiatry·DateJul 5, 2023

“Telekinesis”: Scientists develop new technology for targeted cancer therapy

Researchers have developed a new technology that uses acoustic tweezers to precisely control bacterial clusters in live mice, demonstrating a promising approach for targeted drug delivery and cellular therapy in cancer treatment. The technology, called PAHAT, enables precise non-contact manipulation of cells in living organisms.

SourceChinese Academy of Sciences Headquarters·JournalNature Communications·DateJul 5, 2023

Scent of a woman: Hand odor can reveal a person’s sex

A new study using mass spectrometry analyzed hand scent compounds from 60 individuals and achieved a 96.67% accuracy rate in predicting sex. The analysis can be used to uncover details about a potential perpetrator, such as age and racial or ethnic group, when other evidence is lacking.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateJul 5, 2023

International migrants left behind in HIV response: study

A recent study found that international migrants in Australia are at increased risk of HIV infection due to reduced access to PrEP, a highly effective prevention measure. The study identified multiple barriers, including lack of awareness, low risk perception, and provider discrimination, which hinder their ability to access PrEP.

SourceMonash University·JournalThe Lancet Public Health·TypeSystematic review·DateJul 5, 2023

Testing for chronic traumatic encephalopathy among former professional football players

A new study investigated the use of positron emission tomography (PET) with radiotracer (18F)-Flortaucipir to detect chronic traumatic encephalopathy (CTE) in former professional American-style football players. The study found no significant differences in (18F)-FTP uptake between former players and age-matched male control participan...

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalJournal of Neurotrauma·TypeExperimental study·DateJul 5, 2023

Fossils reveal how ancient birds molted their feathers— which could help explain why ancestors of modern birds survived when all the other dinosaurs died

Researchers studying ancient bird fossils discovered that molting, the process of shedding and regrowing feathers, was more complex than previously thought. The discovery sheds light on how ancient birds, including those that survived the mass extinction event, developed this crucial survival strategy.

SourceField Museum·JournalCommunications Biology·DateJul 5, 2023

Black Americans may face relatively accelerated biological aging because they tend to experience lower socioeconomic status, more neighborhood deprivation and higher air pollution than White Americans

A recent study suggests that Black Americans experience accelerated biological aging compared to White Americans, primarily due to lower socioeconomic status and exposure to air pollution. The findings highlight the significant impact of environmental factors on epigenetic aging disparities between racial groups.

SourcePLOS·JournalPLOS ONE·DateJul 5, 2023

Utah seismologists peer into Earth's inner core

Scientists have confirmed that Earth's inner core is not a homogenous mass, but rather a textured solid metal sphere. The research, led by Guanning Pang and Keith Koper, used seismic data from naturally occurring earthquakes to study the inner core's structure.

SourceUniversity of Utah·JournalNature·TypeObservational study·DateJul 5, 2023

Cannabis use associated with increased risk of surgical complications, according to UTHealth Houston study

A UTHealth Houston study found that regular cannabis users are more likely to experience complications before, during, and after surgery. Patients with a cannabis use disorder (CUD) were approximately 20% more likely to suffer significant postoperative complications than those without CUD.

SourceUniversity of Texas Health Science Center at Houston·JournalJAMA Surgery·TypeData/statistical analysis·DateJul 5, 2023

Why the day is 24 hours long: Astrophysicists reveal why Earth’s day was a constant 19.5 hours for over a billion years

For over a billion years, the sun's atmospheric tide countered the moon's gravitational pull, keeping Earth's rotational rate steady and day length at 19.5 hours. This balance was disrupted by climate change, resulting in our current 24-hour day stretching to over 60 hours if not for the pause.

SourceUniversity of Toronto·JournalScience Advances·TypeComputational simulation/modeling·DateJul 5, 2023

Earth formed from dry, rocky building blocks

A study by Caltech scientists reveals that Earth primarily consisted of dry, rocky materials during its early stages, with a major addition of life-essential volatiles occurring only in the last 15% of its formation. This finding provides crucial insights into the planet's formation process and has important implications for theories o...

SourceCalifornia Institute of Technology·JournalScience Advances·DateJul 5, 2023

Study shines light on why companies use a variety of dark money strategies

Researchers found that companies use a variety of strategies to hide their political activities, including those below the surface not observable by public, according to McCombs School of Business Associate Professor Tim Werner. The study provides insight into corporate decision-making and can inform policies related to transparency

SourceUniversity of Texas at Austin·JournalAcademy of Management Review·TypeComputational simulation/modeling·DateJul 5, 2023

Fewer than half of new drugs add substantial therapeutic value over existing treatments

Fewer than half of new drugs approved for multiple indications in the US and Europe between 2011 and 2020 offered significant benefits over existing treatments. A study found that supplemental approvals were substantially less effective, suggesting a need to clearly communicate this information to patients and reflect it in drug prices.

SourceBMJ Group·JournalThe BMJ·TypeObservational study·DateJul 5, 2023