Add BrightSurf on Google Email

Science News Archive 2024 - Page 44


Page 44 of 484

USTC finds γ rays drive the conversion of aqueous-phase methane to complex organic molecules including glycine

A research group at USTC found that γ rays can facilitate the conversion of aqueous-phase methane to diverse products, including hydrocarbons, oxygenated compounds, and amino acids like glycine. The reaction rate is contingent on free radical concentrations and does not significantly influence temperature.

SourceUniversity of Science and Technology of China·JournalAngewandte Chemie International Edition·TypeExperimental study·DateNov 26, 2024

Shape-shifting antenna poised to transform communications

Researchers at Johns Hopkins University Applied Physics Laboratory have created a shape-shifting antenna that can change its shape based on temperature, transforming communications capabilities. The technology has transformative potential in military, scientific and commercial applications, enabling dynamic RF band adaptability.

SourceJohns Hopkins University Applied Physics Laboratory·JournalACS Applied Engineering Materials·TypeExperimental study·DateNov 26, 2024

Pharmacokinetics comparison of aumolertinib, Osimertinib, gefitinib and their major metabolites in mouse model and NSCLC patients

This study compares the pharmacokinetics of aumolertinib, osimertinib, and gefitinib in mouse models and NSCLC patients. Aumolertinib exhibits better pharmacokinetic profiles, with higher concentrations in plasma and tissues, making it a promising candidate for EGFR mutation-positive NSCLC treatment.

To catch financial rats, a better mousetrap

Researchers propose a new and more effective way to gauge earnings quality, identifying companies that may be using accounting tricks to cover up problems. The Earnings Quality Score (EQSCORE) model has been shown to outperform existing approaches in predicting fraud, providing valuable insights for investors and regulators.

SourceUniversity of Texas at Austin·JournalContemporary Accounting Research·DateNov 26, 2024

Improved catalyst turns harmful greenhouse gases into cleaner fuels, chemical feedstocks

Researchers at ORNL have developed a catalyst that can convert two polluting greenhouse gases into valuable building blocks for cleaner fuels and feedstocks. The catalyst, made of zeolite material, is resistant to degradation at high temperatures and has been shown to provide outstanding performance with extremely slow deactivation.

SourceDOE/Oak Ridge National Laboratory·JournalNature Communications·TypeExperimental study·DateNov 26, 2024

USTC develops high-entropy-alloy catalyst to boost propane dehydrogenation efficiency

A USTC research team has developed a Pt-based high-entropy-alloy catalyst that significantly enhances the efficiency of propane dehydrogenation. The catalyst achieved propylene formation rates of 256 and 390 mol C₃H₆ gₚₜ⁻¹ h⁻¹ at 550 °C and 600 °C, respectively, with high selectivity for propylene in a long-term stability test.

SourceUniversity of Science and Technology of China·JournalAngewandte Chemie International Edition·DateNov 26, 2024

Alcohol use and antiobesity medication treatment

A cohort study found that nearly half of participants who consumed alcohol at baseline decreased their alcohol use after initiating anti-obesity medication treatment. The medications, such as naltrexone and glucagon-like peptide-1 receptor agonists (GLP-1 RAs), may have properties that lead to reduced cravings for alcohol.

SourceJAMA Network·JournalJAMA Network Open·DateNov 26, 2024

Irregular sleep-wake cycle linked to heightened risk of major cardiovascular events

Research published in the Journal of Epidemiology & Community Health found that irregular sleep-wake cycles are associated with a heightened risk of major cardiovascular events. People with regular sleep patterns were 26% less likely to experience these events than those with irregular patterns, even if they met recommended sleep quotas.

SourceBMJ Group·JournalJournal of Epidemiology and Community Health·TypeObservational study·DateNov 26, 2024

Heterogeneous photocatalyst achieves record-breaking performance for CO2 conversion

A new microwave-assisted synthesis route has improved the performance of a coordination polymer photocatalyst, achieving a record-breaking value for CO2-to-formate conversion with a nearly ten-fold increase in apparent quantum yield. The improvements are attributed to well-crystallized material and surface area increases.

SourceInstitute of Science Tokyo·JournalAdvanced Functional Materials·TypeExperimental study·DateNov 26, 2024

Team unlocks new insights on pulsar signals

A study published in The Astrophysical Journal reveals that pulsar signals change as they move through the interstellar medium, highlighting a need for updates to current ISM density models. The research found that models incorporating galactic structures tend to better fit the data, but predictions of newly discovered pulsars were worse.

SourceSETI Institute·JournalThe Astrophysical Journal·DateNov 26, 2024

Moffitt study shows how cancer cell death may harm the immune system and promote tumor growth

Researchers found that a type of cancer cell death called necroptosis can release a molecule called interleukin-1α, weakening the immune response and allowing tumors to grow faster. By blocking this molecule, cancer treatments like chemotherapy and immunotherapy may become more effective.

SourceH. Lee Moffitt Cancer Center & Research Institute·JournalCancer Cell·TypeObservational study·DateNov 26, 2024

The lasting influence of experiences

Researchers find that experiences can create lasting mental imprints affecting future well-being and decision-making. Memorable consumption choices are influenced by both immediate utility and the ongoing utility derived from memory.

SourceBocconi University·JournalGames and Economic Behavior·DateNov 26, 2024

Simple secret to living a longer life

A new study led by Griffith University researchers found that increasing physical activity could add up to five years to an individual's life, with the most active quarter having a 73% lower risk of death. Even modest increases in movement could lead to significant life-extension benefits.

SourceGriffith University·JournalBritish Journal of Sports Medicine·TypeData/statistical analysis·DateNov 26, 2024

New study reveals genetic drivers of early onset type 2 diabetes in South Asians

A new study from Queen Mary University of London has identified the genetic drivers of early onset type 2 diabetes in South Asians, revealing a strong link to lower insulin production and unfavorable body fat distribution. The research also sheds light on treatment responses, highlighting the need for precision medicine approaches.

SourceQueen Mary University of London·JournalNature Medicine·TypeObservational study·DateNov 26, 2024

Photodynamic therapy with annatto colorant found to be effective against bad breath

A study published in PLOS ONE found that antimicrobial photodynamic therapy using annatto colorant was effective in treating halitosis in mouth-breathing children. The researchers used a LED light source to target the annatto, which generated reactive oxygen species that killed bacteria on the tongue, leading to improved oral health.

Wild boars could be a potential source of hepatitis E transmission to humans in the Barcelona metropolitan area

A study by University of Barcelona researchers found a close molecular similarity between wild boar and human hepatitis E virus strains. The researchers recommend avoiding contact with wild boars, washing hands after contact, and taking precautions in areas frequented by pets to prevent transmission.

SourceUniversity of Barcelona·JournalScience of The Total Environment·TypeExperimental study·DateNov 26, 2024

Understanding the thermoelectric transport properties of organic semiconductors through the perspective of polarons

Researchers investigated the thermoelectric transport properties of organic semiconductors using a polaronic charge conduction model. They linked experimental observations to build a unified picture of thermoelectric transport physics in organic semiconductors, showcasing promising applications like thermoelectric radiation sensing.

SourceAdvanced Devices & Instrumentation·JournalAdvanced Devices & Instrumentation·TypeNews article·DateNov 26, 2024

Using antibiotics alone to treat children with appendicitis is a cost-effective and safe alternative to surgery, study shows

A study published in the Journal of the American College of Surgeons found that using antibiotics alone to treat children with uncomplicated appendicitis is a cost-effective and safe alternative to surgery. This approach resulted in lower costs and similar quality-of-life scores compared to upfront surgery.

SourceAmerican College of Surgeons·JournalJournal of the American College of Surgeons·DateNov 26, 2024

New era in amphibian biology

Researchers at ISTA and Columbia University developed a technique using adeno-associated viruses (AAVs) to track a frog's nervous system throughout its metamorphosis, shedding light on the neural circuit and behavior changes during this transition. The breakthrough can help usher amphibian neurobiology into a new era.

SourceInstitute of Science and Technology Austria·JournalDevelopmental Cell·TypeExperimental study·DateNov 26, 2024

Moving ‘hotspot’ created world’s longest straight underwater mountain belt

Researchers at Curtin University found that the Ninetyeast Ridge, the Earth's longest straight underwater mountain chain, formed as a massive volcanic chain between 83 and 43 million years ago. High-precision dating revealed that the hotspot responsible for the ridge moved by several hundred kilometres within the mantle over time.

SourceCurtin University·JournalNature Communications·TypeObservational study·DateNov 26, 2024

Sports betting and financial market data show how people misinterpret new information in predictable ways

Researchers found a pattern in how people interpret new information, overreacting to weak signals and underreacting to strong ones. This bias holds true across various settings, including financial markets, according to a study analyzing millions of betting transactions and prices on options contracts.

SourceUniversity of California - Berkeley Haas School of Business·JournalThe Quarterly Journal of Economics·TypeData/statistical analysis·DateNov 26, 2024

Engineering hypoallergenic cats

A team of scientists used CRISPR technology to investigate the role of Fel d 1, a gene that triggers cat allergies. By analyzing genetic diversity and expression levels, they found that cats genetically modified to lack CH2 were healthy, suggesting that the allergen may not be essential for feline health.

SourcePNAS Nexus·JournalPNAS Nexus·DateNov 26, 2024

World’s oldest lizard wins fossil fight

A fossilized skeleton found in Bristol has been identified as Cryptovaranoides microlanius, a tiny lizard with sharp teeth, and dated to the Triassic period. The discovery shifts the origin of the Squamata group back by 35 million years, confirming its relationship to modern anguimorphs.

SourceUniversity of Bristol·JournalRoyal Society Open Science·TypeComputational simulation/modeling·DateNov 26, 2024

Brain test shows that crabs process pain

Researchers at the University of Gothenburg have conducted a groundbreaking study on shore crabs, revealing that they possess pain receptors and neural reactions in response to painful stimuli. The findings provide conclusive evidence for the existence of pain in crustaceans, highlighting the need for more humane treatment methods.

SourceUniversity of Gothenburg·JournalBiology·TypeExperimental study·DateNov 26, 2024

New issue of Advances in Dental Research explores the role of women in dental, clinical, and translational research

The new issue of Advances in Dental Research explores the impact of sex biology on women's health, highlighting disparities in dental disease prevalence. The meeting emphasized the need for a comprehensive approach to address these issues, including access to care and preventive measures.

New framework enhances remote sensing image fusion with frequency-independent feature learning

A new framework for remote sensing image fusion was developed, using frequency decoupled domain-independent feature learning. The approach analyzes domain-independent information distribution in image amplitude and phase components to improve image fusion and quality.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalIEEE Transactions on Circuits and Systems for Video Technology·DateNov 26, 2024

Study unravels another piece of the puzzle in how cancer cells may be targeted by the immune system

Researchers have identified a form of Vitamin B6 bound to MR1 as a means of engaging tumour-reactive immune cells, suggesting that altered cellular metabolism/metabolite levels may distinguish cancer cells. Understanding the breadth of MR1-mediated immunity could illuminate routes for therapeutic intervention with broad utility.

SourceMonash University·JournalProceedings of the National Academy of Sciences·DateNov 26, 2024

ISS National Lab publication highlights groundbreaking physical science research in space

Researchers on the ISS National Lab have leveraged microgravity to study fundamental physical phenomena, such as heat transfer, combustion, and fluid dynamics. These discoveries hold potential for advances in pharmaceuticals, energy production, materials manufacturing, and more.

SourceInternational Space Station U.S. National Laboratory·JournalGravitational and Space Research·TypeMeta-analysis·DateNov 26, 2024