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Science News Archive July 2023 - Page 5


Page 5 of 36

Transcription factors contribute to subtypes of colorectal cancers

Researchers found that expression of transcription factors contributes to different subtypes of colorectal cancers. The degree of DNA methylation varies across tissue types, with some cancers having high and others low frequency of methylation gains. Studying transcription factor expression may help determine overall survival in patien...

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateJul 27, 2023

Ancient pathogens emerging from melting ice and permafrost risk eroding ecosystems

A new study by Flinders University researchers suggests that only 1% of dormant pathogens could cause major ecological harm, leading to the loss of host organisms worldwide. The simulations showed that these ancient microbes can survive, evolve, and become dominant in modern ecosystems, posing a substantial danger.

SourceFlinders University·JournalPLOS Computational Biology·TypeComputational simulation/modeling·DateJul 27, 2023

Bacteria like cholera may be crucial in the development of new antibiotics

Researchers at the University of Copenhagen have discovered how a bacterium called Vibrio alginolyticus moves using sodium ions, which could lead to new targets for antibiotics. The study provides insights into the flagellum's movement and may help develop novel antibiotics to combat antibiotic resistance.

Motivation and pleasure deficits play important role in social functioning across psychiatric disorders

A recent study published in Nature Mental Health reveals that amotivation and anhedonia are key factors in determining social functioning among individuals with psychiatric disorders. The research found that these negative symptoms have a stronger impact on social functioning than expressive dysfunction, especially in patients with sch...

SourceChinese Academy of Sciences Headquarters·JournalNature Mental Health·TypeExperimental study·DateJul 27, 2023

Teens need consistent positive messaging in multicultural environments

A UC Davis study surveyed 700 teens in multicultural public schools, finding that only 4% received consistent and high levels of multicultural messaging and affirmation. The researchers suggest promoting multicultural socialization across school, peer, and family settings to improve adolescents' academic functioning.

SourceUniversity of California - Davis·JournalJournal of Youth and Adolescence·TypeSurvey·DateJul 27, 2023

Nerve cells in the brain can halt all movement in the body – even breathing

Researchers have discovered a group of nerve cells in the midbrain that can completely stop all forms of movement and slow down breathing and heart rate when stimulated. The study provides valuable insight into how the nervous system controls movement and may help understand Parkinson's disease.

SourceUniversity of Copenhagen - The Faculty of Health and Medical Sciences·JournalNature Neuroscience·TypeExperimental study·DateJul 27, 2023

Johns Hopkins Applied Physics Laboratory restores cold sensation in amputees’ phantom limbs

Researchers at Johns Hopkins Applied Physics Laboratory developed a wearable thin-film thermoelectric cooler that enables amputees to perceive temperature sensations in their phantom limbs. The technology has practical applications for improved prostheses, haptics, and pain management.

SourceJohns Hopkins University Applied Physics Laboratory·JournalNature Biomedical Engineering·TypeObservational study·DateJul 27, 2023

MIND diet study shows 'short-term' impact on cognition

A new study published in The New England Journal of Medicine found that the MIND diet had a significant improvement in cognition during the first two years, but no significant difference in three-year changes. The study enrolled 604 people with suboptimal diets and family history of Alzheimer's disease.

SourceRush University Medical Center·JournalNew England Journal of Medicine·TypeRandomized controlled/clinical trial·DateJul 27, 2023

The genetic heritage of our extinct ancestors

Researchers discovered a 40,000-year-old gene flow event between an extinct gorilla ghost population and the common ancestor of eastern lowland gorillas and mountain gorillas. This exchange introduced genes that are still present in today's eastern gorillas, including a bitter taste receptor gene under positive selection.

SourceUniversity of Vienna·JournalNature Ecology & Evolution·DateJul 27, 2023

Study reveals vital role of supportive managers to minimize physical restraint use in care homes

A Cochrane review reveals that organizational interventions can reduce the use of physical restraints in care home residents by 14%, without increasing falls or fall-related injuries. Supportive managers play a crucial role in implementing these interventions, which improve knowledge, skills, and strategies among frontline staff.

SourceCochrane·JournalCochrane Database of Systematic Reviews·TypeSystematic review·DateJul 27, 2023

Unveiling the potential of radiofrequency-operated 2D biochemical sensor in the internet-of-things era

Researchers have developed ultra-thin and flexible 2D biochemical sensors with high sensitivity for detecting target substances, revolutionizing sensing technology. However, integrating these sensors into comprehensive systems for large-scale industrial manufacturing poses significant challenges.

SourceInternational Journal of Extreme Manufacturing·JournalInternational Journal of Extreme Manufacturing·DateJul 27, 2023

Using cosmic weather to study which worlds could support life

Researchers used a new code to test the capabilities of future giant telescopes, which could help identify potentially habitable planets. The study found that ELT and TMT can make high-resolution observations of brown dwarfs and exoplanets over a single rotation, while GMT's instruments require multiple rounds.

SourceOhio State University·JournalThe Astrophysical Journal·TypeData/statistical analysis·DateJul 27, 2023

Korean Red Ginseng can alleviate addictive effects of alcohol, find Sahmyook University researchers

Researchers found that Korean Red Ginseng (KRG) can restore spatial working memory and reduce withdrawal symptoms in mice exposed to alcohol. KRG suppresses the PKA-CREB signaling pathway and inhibits neuroinflammation, suggesting its potential as a novel therapeutic intervention for treating alcohol use disorder.

SourceSahmyook University·JournalJournal of Ginseng Research·TypeExperimental study·DateJul 26, 2023

Study in journal Nature Communications finds high blood glucose levels sensitizes pancreatic cancer cells to chemotherapy

Researchers discovered that high blood glucose levels make pancreatic cancer cells more sensitive to chemotherapy, which could lead to improved treatment outcomes. In a mouse model and clinical data, the study found a nearly 40% lower risk of death among patients with elevated glucose levels compared to those with normal levels.

SourceUniversity Hospitals Cleveland Medical Center·JournalNature Communications·DateJul 26, 2023

Low binding affinity improves vaccine efficacy

Researchers developed a novel vaccine against SARS-CoV-2 by selecting antigen variants with low binding affinity, resulting in higher neutralizing antibody concentrations. This design strategy may also improve vaccine efficacy for other coronaviruses and herpes viruses.

SourceBIH at Charité·JournalEuropean Journal of Immunology·TypeExperimental study·DateJul 26, 2023

Eight out of ten child deaths in low-income countries could be prevented

A study by the CHAMPS network found that 82% of child deaths in low-income countries could have been prevented through targeted interventions. The research used minimally invasive autopsies to investigate causes of death and highlighted the role of infections, with an infectious agent found in 87% of cases.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalJAMA Network Open·TypeObservational study·DateJul 26, 2023

Bromide ions cause ripples in semiclathrate hydrates

A recent study published in Applied Physics Letters reveals the dynamics of water molecules in tetra-n-butylammonium bromide semiclathrate hydrate using quasi-elastic neutron scattering. The research found that water molecules rapidly reorient, and their motion is consistent with breaking hydrogen bonds.

SourceOsaka University·JournalApplied Physics Letters·TypeExperimental study·DateJul 26, 2023

A symmetric-actuating linear piezoceramic ultrasonic motor capable of producing a scissoring effect

A novel symmetric-actuating linear piezoceramic ultrasonic motor (SLPUM) is developed to generate symmetrical, synchronous opposite or backward movements of two movers with the same velocity. The SLPUM doubles the working efficiency of traditional piezoelectric motors and can produce high-precision scissoring effects in microsurgery.

SourceResearch·JournalResearch·TypeExperimental study·DateJul 26, 2023

Arctic terns may navigate climate dangers

A new study suggests that Arctic terns, which fly on the longest migrations of any animal, may be resilient to climate change due to their vast habitats. However, researchers warn that multiple small effects could harm this long-lived species and other species unable to adapt.

SourceUniversity of Exeter·JournalGlobal Change Biology·TypeObservational study·DateJul 26, 2023

Another step forward in radiocarbon dating and understanding of Earth climate and environmental processes during glacial times

A new study enhances radiocarbon dating by creating a precise record of atmospheric shifts over 14,000 calendar years BP. This improvement allows for more accurate dating of sub-fossil samples, enabling researchers to reconstruct past environmental and climate changes during glacial times.

SourceUniversità di Bologna·JournalCommunications Earth & Environment·DateJul 26, 2023

Study examines struggles of Haitian migrants self-managing diabetes on Dominican Republic sugar cane fields

A new study from the University of Missouri found that poverty, low health literacy, cultural beliefs, lack of infrastructure, and political issues hinder diabetes self-management for Haitian migrants. The researchers suggest targeted interventions, such as community gardens and healthcare education through local priests.

SourceUniversity of Missouri-Columbia·JournalThe Science of Diabetes Self-Management and Care·TypeSurvey·DateJul 26, 2023