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Science News Archive 2024 - Page 344


Page 344 of 484

Smoking-related deaths could be reduced if people attending lung cancer screening are offered stop-smoking support

A new study found that offering stop smoking support alongside lung cancer screening can significantly increase quit rates among high-risk individuals. Up to half of those who attend for lung cancer screening currently smoke, and dedicated funding is urged to provide this essential support.

SourceUniversity of Nottingham·JournalEuropean Respiratory Journal·TypeObservational study·DateApr 18, 2024

Following longest known chronic SARS-CoV-2 infection of 613 days, experts highlight the risk of development of novel potentially immune-evasive SARS-CoV-2 variants due to persistent infections in immunocompromised patients

Researchers highlight the risk of novel SARS-CoV-2 variants emerging due to prolonged viral replication in immunocompromised individuals. Close genomic surveillance and early diagnostic tests are crucial to mitigate potential public health threats.

Drawing a line back to the origin of life

The study suggests that graphitisation could provide simplicity and a clean environment required for life, theorising that an object roughly the size of the moon hit early Earth around 4.3 billion years ago, depositing iron and other metals that reacted with water to form useful nitrogen-containing compounds.

SourceUniversity of Cambridge·JournalLife·TypeComputational simulation/modeling·DateApr 18, 2024

Silent flight edges closer to take off, according to new research

Researchers at the University of Bristol have solved the mystery of how futuristic aircraft embedded engines make noise. They discovered that the noise pattern changes depending on the fan's thrust level, with higher thrust producing a noise similar to traditional fans and lower thrust causing the duct itself to make more noise.

SourceUniversity of Bristol·JournalJournal of Fluid Mechanics·TypeExperimental study·DateApr 18, 2024

Occupations that are cognitively stimulating may be protective against later-life dementia

A new study found that people with cognitively stimulating occupations during midlife had a lower risk of mild cognitive impairment (MCI) and dementia after age 70. The researchers analyzed data from over 300 jobs and found that high occupational cognitive demands were related to lower risks of MCI and dementia.

New urine-based test detects high-grade prostate cancer, helping men avoid unnecessary biopsies

Researchers have developed a new urine-based test that identifies high-grade prostate cancer by analyzing 18 genes linked to the disease. The test, called MyProstateScore2.0, was shown to be nearly 100% correct at ruling out aggressive cancers and helped avoid up to 41% of unnecessary biopsies.

SourceMichigan Medicine - University of Michigan·JournalJAMA Oncology·TypeExperimental study·DateApr 18, 2024

Warming and exogenous organic matter input affected temperature sensitivity and microbial carbon use efficiency of agricultural soil respiration on the Qinghai-Tibet Plateau

Research found that soil warming increased respiration rates, but reduced temperature sensitivity and altered microbial carbon use efficiency. Organic matter input enhanced aggregate accumulation and changed respiration patterns among aggregates of different sizes.

SourceHigher Education Press·JournalSoil Ecology Letters·TypeExperimental study·DateApr 17, 2024

Silver-based micromotors that eliminate bacteria moving freely in aqueous media

Researchers have developed microscopic crystals that activate in the presence of light, releasing silver ions with antimicrobial activity. These silver-based micromotors move autonomously through photocatalysis, killing bacteria and providing a promising tool for environmental recovery.

SourceInstitute of Chemical Research of Catalonia (ICIQ)·JournalAdvanced Optical Materials·TypeExperimental study·DateApr 17, 2024

Small changes make a big difference in life cycle diagrams

A new study finds that simple design changes in life cycle diagrams can have a significant impact on undergraduate students' ability to understand ecology and evolution concepts. The study involved 684 undergraduates who were given three different diagram formats, with the linear format showing multiple offspring scoring highest on que...

SourceNorth Carolina State University·JournalEducation Sciences·TypeExperimental study·DateApr 17, 2024

A better view with new mid-infrared nanoscopy

A team at the University of Tokyo has constructed an improved mid-infrared microscope that enables them to see the structures inside living bacteria at the nanometer scale with a resolution of 120 nanometers. This breakthrough can aid multiple fields of research, including into infectious diseases.

SourceUniversity of Tokyo·JournalNature Photonics·TypeExperimental study·DateApr 17, 2024

Exposure to air pollution during the first two years of life is associated with worse attention capacity in children

A study published in Environment International found that exposure to nitrogen dioxide (NO2) during the first two years of life is associated with poorer attentional function in children aged 4-8, particularly in boys. The association persists even after adjusting for other factors.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalEnvironment International·TypeData/statistical analysis·DateApr 17, 2024

Advancing performance assessment of a spectral beam splitting hybrid PV/T system with water-based SiO2 nanofluid

Researchers investigated the effect of design parameters on system performance enhancement in spectral beam splitting hybrid PV/T systems using water-based SiO2 nanofluid. They found that optimal SiO2 nanofluid concentration balances efficiency and cost-effectiveness, with a maximum efficiency of 51.93% at a focusing ratio of 3.

SourceHigher Education Press·JournalFrontiers in Energy·TypeExperimental study·DateApr 17, 2024

Flexibility can support healthy eating behaviors among women

A recent study at the Hebrew University of Jerusalem found that women with restrained eating habits who practiced flexible responses to food cues showed increased positivity towards high-calorie foods. This suggests that a balanced approach to responding and inhibiting food cues can foster more positive emotional reactions to food.

SourceThe Hebrew University of Jerusalem·JournalJournal of Eating Disorders·TypeExperimental study·DateApr 17, 2024

Paper: To understand cognition—and its dysfunction—neuroscientists must learn its rhythms

The study suggests that understanding brain rhythms is critical for developing effective treatments for neurological disorders like schizophrenia, epilepsy, and Parkinson's. Cognition emerges from the coordinated activity of millions of neurons via electric fields, known as brain waves or rhythms.

SourcePicower Institute at MIT·JournalCurrent Opinion in Behavioral Sciences·TypeLiterature review·DateApr 17, 2024

Pennington Biomedical’s Dr. Steven Heymsfield and colleague publish guidance on energy and macronutrients across the lifespan

A study published in the New England Journal of Medicine provides recommendations for protein, carbohydrates, fat, fiber, and water intake at various stages of life to support overall health. The guidance, developed by Dr. Steven Heymsfield and Dr. Sue Shapses, aims to promote personalized diets with key macronutrients.

SourcePennington Biomedical Research Center·JournalNew England Journal of Medicine·DateApr 17, 2024

Spintronics: A new path to room temperature swirling spin textures

Researchers at HZB have developed a new approach to create and stabilize complex spin textures like radial vortices in various compounds. By using superconducting structures to imprint domains and surface defects to stabilize them, they achieve stable magnetic microstructures that can be used for spintronic applications.

SourceHelmholtz-Zentrum Berlin für Materialien und Energie·JournalACS Applied Materials & Interfaces·TypeExperimental study·DateApr 17, 2024

Oxygen vacancies mediated ultrathin Bi4O5Br2 nanosheets as efficient piezocatalyst for synthesis of H2O2 from pure water

Researchers have developed ultrathin Bi4O5Br2 nanosheets with controlled oxygen vacancies, which exhibit high performance for piezocatalytic H2O2 production. The material's unique structure and oxygen vacancies improve the separation and transfer of piezoinduced charges, as well as promote oxygen adsorption and activation on the surface.