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Science News Archive July 2024 - Page 36


Page 36 of 41

A garnet-rich lunar mantle?

Researchers found sound velocities compatible with seismic profiles at depths of 740-1260 km, supporting garnet presence. The results have significant implications for the Moon's composition and formation, as well as its interior temperature and dynamo.

SourceEhime University·JournalEarth and Planetary Science Letters·DateJul 3, 2024

PolyU study reveals the mechanism of bio-inspired control of liquid flow, enlightening breakthroughs in fluid dynamics and nature-inspired materials technologies

Scientists studied Crassula muscosa and found its unique leaves pack tiny fins that manipulate the meniscus to direct liquid transport. An artificial mimic, CMIAs, mimics this effect, enabling real-time directional control of fluid flow in various technologies.

SourceThe Hong Kong Polytechnic University·JournalScience·TypeExperimental study·DateJul 3, 2024

3D covalent organic frameworks with zyg topology for photocatalytic synthesis of hydrogen peroxide

Researchers developed novel 3D covalent organic frameworks (COFs) with zyg topology, which facilitate light-induced charge separation and boost the photocatalytic synthesis of hydrogen peroxide. The synthesized COFs showed enhanced photocatalytic activity, with one example yielding a H2O2 synthesis rate of 3324 μmol g−1 h−1.

SourceScience China Press·JournalNational Science Review·DateJul 3, 2024

Wastewater is a viable medium for growing lettuce in hydroponic systems, study shows

Researchers found that combining aquaponic wastewaters with hydrothermal liquefaction aqueous phase (HTL-AP) solutions up to 8% can support plant growth without inhibiting germination. This alternative nutrient source has the potential to increase circularity in food production systems and reduce reliance on chemical fertilizers.

Scientists pinpoint strategies that could stop cats from scratching your furniture

Research reveals that environmental and behavioral factors such as the presence of children, play levels, and personality traits significantly impact cats' scratching behavior. Providing safe hiding places, elevated observation spots, and ample play opportunities can help alleviate stress and engage cats in constructive activities.

SourceFrontiers·JournalFrontiers in Veterinary Science·TypeSurvey·DateJul 3, 2024

Fighting COVID-19 with a cancer drug

Scientists identify PI3K gamma as a key player in recruiting damaging myeloid cells to infected tissues, and show that inhibiting this enzyme with eganelisib can prevent excessive inflammation. The study provides a new approach to preventing irreversible organ damage in infectious diseases like COVID-19.

SourceUniversity of California - San Diego·JournalScience Translational Medicine·DateJul 3, 2024

Smoking behavior is linked to personality traits

Researchers found that smokers are more extraverted but less conscientious and agreeable than non-smokers. Cigar smokers tend to exhibit lower neuroticism and higher openness compared to other types of smokers.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateJul 3, 2024

Already 30 minutes of exercise increases the proportion of tumor-killing white blood cells in blood

A new Finnish study from University of Turku shows that already a 30-minute exercise can increase the proportion of tumor-killing white blood cells in the bloodstream of breast cancer patients. The amount of several different white blood cell types increased during exercise, with cytotoxic T cells and natural killer cells rising the most.

SourceUniversity of Turku·JournalFrontiers in Immunology·DateJul 3, 2024

Deep machine-learning speeds assessment of fruit fly heart aging and disease, a model for human disease

Researchers at UAB have developed a method to assess cardiac dynamics in fruit flies using deep learning and high-speed video microscopy. The study uses this approach to analyze the effects of aging and dilated cardiomyopathy on heart function, with potential applications for human cardiovascular research.

SourceUniversity of Alabama at Birmingham·JournalCommunications Biology·TypeExperimental study·DateJul 3, 2024

Research spotlight: Uncovering how a cellular miscommunication leads to cognitive impairment in female patients with Alzheimer’s disease

A study found that APOE4 impairs communication between immune cells, leading to cognitive decline in female Alzheimer's patients. The researchers identified a new subset of neutrophils interacting with microglia associated with cognitive impairment, which could be targeted for therapeutic intervention.

SourceBrigham and Women's Hospital·JournalNature Medicine·DateJul 3, 2024

Compact cities have lower carbon emissions, but poorer air quality, less green space and higher mortality rates

A study by ISGlobal analyzed 919 European cities, identifying four urban configurations: compact-high density, open lowrise-medium density, open lowrise-low density, and green-low density. Compact high-density cities have lower carbon footprints but higher mortality rates due to poorer air quality and less green space.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalThe Lancet Planetary Health·TypeData/statistical analysis·DateJul 3, 2024