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Science News Archive 2023 - Page 41


Page 41 of 444

Low-pH-dependent RNA binding and oligomerization of SID-1 transmembrane family proteins: implications for their RNA transport activity

Human SIDT1 and SIDT2 proteins form dimers and higher-order oligomers to bind small RNAs in a pH-dependent manner, enabling their transport into the cytoplasm. This study elucidates the molecular basis of RNA uptake by these proteins, shedding light on their functional regulation.

SourceNanjing University School of Life Sciences·JournalCell Research·TypeExperimental study·DateNov 22, 2023

Unraveling paddy soil secrets: Surprising contribution of nonmicrobial mechanisms to CO2 emissions

Researchers found that non-living processes involving reactive oxygen species play a significant role in paddy soils' CO2 emissions. The study highlights the importance of understanding the interplay between organic carbon and both living and non-living contributors to devise effective strategies against global warming.

SourceNanjing Institute of Environmental Sciences, MEE·JournalEco-Environment & Health·DateNov 22, 2023

Lidocaine may be able to kill certain cancer cells by activating bitter taste receptors

Researchers at the University of Pennsylvania School of Medicine found that lidocaine activates the bitter taste receptor T2R14, which triggers apoptosis in cancer cells. This mechanism could lead to improved treatment options for patients with head and neck cancers, particularly those associated with human papillomavirus.

Pangenomic study of water caltrop — structural variations play a role in speciation and asymmetric subgenome evolution

A pangenomic study of water caltrop has identified structural variations that contribute to its speciation and asymmetric subgenome evolution. The study found that gene clusters related to organ development, organic substance metabolism, and response to stimulus were differentially expressed between the two diploid species.

SourceNanjing Agricultural University The Academy of Science·JournalHorticulture Research·TypeExperimental study·DateNov 22, 2023

Autonomous excavator constructs a 6-meter-high dry-stone wall

Researchers at ETH Zurich developed an autonomous excavator called HEAP to construct a 6-meter-high and 65-meter-long dry-stone wall. The excavator uses sensors, machine vision, and algorithms to place stones in the desired location, achieving a high level of precision and speed.

SourceETH Zurich·JournalScience Robotics·TypeExperimental study·DateNov 22, 2023

Halting a malformation of the heart

A team of scientists has identified the molecular switches involved in halting heart malformations, which could lead to new treatments for tetralogy of Fallot. By targeting the BBLN protein, they aim to prevent defects in four critical areas of the heart.

SourceETH Zurich·JournalNature Cardiovascular Research·TypeExperimental study·DateNov 22, 2023

A computer model of the ear developed at IOCB Prague may help to improve cochlear implants

Researchers from IOCB Prague and MED-EL have created a complete computer model of the ear, allowing for detailed simulation of sound conversion and hearing processes. This model may help improve cochlear implants and better compensate hearing impairments.

SourceInstitute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB Prague)·JournalHearing Research·TypeComputational simulation/modeling·DateNov 22, 2023

The highly efficient removal method of phosphate from wastewater of aquaculture: Adsorption-membrane separation-coordinated strategy

Researchers developed a Zr-modified-bentonite filled polyvinyl chloride membrane for efficient phosphate removal from low-concentration phosphate solutions. The membrane achieved high removal rates of up to 98.5% in SCAW, making it a promising solution for combating eutrophication and alleviating phosphorus shortages.

SourceHigher Education Press·JournalFrontiers of Environmental Science & Engineering·TypeExperimental study·DateNov 21, 2023

Highly active and durable PdFe/Cu nanocatalysts prepared by liquid phase synthesis for ethanol electrooxidation reaction

Researchers designed PdFe/Cu nanocatalysts using a stepwise co-reduction method, exhibiting enhanced oxidation properties and durability. The addition of Cu to the precursor transformed spherical PtFe nanoparticles into chains with improved methanol oxidation capabilities.

SourceBeijing Zhongke Journal Publising Co. Ltd.·JournalAdvanced Sensor and Energy Materials·DateNov 21, 2023

Skin bacteria can save lives

Researchers at UiT The Arctic University of Norway have discovered a new bacteriocin, Romsacin, produced by Staphylococcus haemolyticus, which inhibits the growth of antibiotic-resistant bacteria. This breakthrough could potentially lead to a new medicine for infections with no effective treatment.

SourceUiT The Arctic University of Norway·JournalMicrobiology Spectrum·TypeExperimental study·DateNov 21, 2023

Toward sustainable energy applications with breakthrough in proton conductors

Researchers at Tokyo Institute of Technology have discovered a new strategy to enhance the conductivity and stability of perovskite-type proton conductors, overcoming the 'Norby gap' issue. Donor doping into materials with disordered intrinsic oxygen vacancies enables high proton conduction at intermediate and low temperatures.

SourceTokyo Institute of Technology·JournalNature Communications·TypeExperimental study·DateNov 21, 2023

Unearthing how a carnivorous fungus traps and digests worms

A new study examines how a carnivorous fungus senses, traps, and consumes a worm. The research reveals key biological processes involved in the predation process, including increased DNA replication and secretion of proteins that aid in trap development.

SourcePLOS·JournalPLOS Biology·TypeExperimental study·DateNov 21, 2023

Dynamic z-scanning for ultrafast auto-focusing in laser processing

A team of researchers has developed a fast method to track surface location and adjust optical focus simultaneously without mechanical movement. The dynamic z-scanning technique reduces defocused laser pulses and increases processing speed when processing non-flat or changing samples.

‘Manosphere’ community is misusing scientific research to support its beliefs

A new study by the University of Kent's School of Anthropology and Conservation has found that members of the 'manosphere' community are misusing academic research to justify anti-feminist and sexist beliefs. The research highlights a double standard, where women's behavior is scrutinized while men's behavior is overlooked.

SourceUniversity of Kent·JournalEvolutionary Human Sciences·TypeContent analysis·DateNov 21, 2023

BU study finds long-term acute care hospital closures associated with changes in hospital care practices

A new study from Boston University Chobanian & Avedisian School of Medicine found that hospital discharge patterns changed after long-term acute care hospital closures, with patients receiving prolonged mechanical ventilation discharged to skilled nursing facilities more often. Overall spending on mechanically ventilated patients decre...

SourceBoston University School of Medicine·JournalJAMA Network Open·DateNov 21, 2023

New fossil assemblage highlights complexity of classifying silesaurid phylogeny

A new fossil assemblage in Brazil has added to the complexity of classifying silesaurid phylogeny, a family of dinosauriforms that lived during the Triassic period. The study suggests that these animals were part of the evolutionary history of dinosaurs, but their classification remains uncertain due to ambiguous anatomy.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalJournal of Vertebrate Paleontology·DateNov 21, 2023

Hydrogen detected in lunar samples, points to resource availability for space exploration

Scientists have detected solar-wind hydrogen in lunar samples, indicating that water on the Moon's surface may provide a vital resource for future lunar bases and longer-range space exploration. Hydrogen has the potential to be used directly on the lunar surface when there are more regular or permanent installations.

SourceNaval Research Laboratory·JournalCommunications Earth & Environment·TypeExperimental study·DateNov 21, 2023

Discovery of structural regularity hidden in silica glass

Researchers discovered a mixture of ring shapes unique to glass and those resembling crystals, with specific areas showing degree of order or regularity despite apparent disorder. The findings contribute to understanding phase-transitions and provide mathematical descriptions for controlling material structures and properties.

SourceTohoku University·JournalCommunications Materials·DateNov 21, 2023

Most-cited scientists: Still mostly men, but the gender gap is closing

The gender gap among top-cited scientists is narrowing, with women now representing 32% of top-cited authors in certain fields, according to a study analyzing 5.8 million international scientific authors. However, significant disparities remain, and efforts to address promotion pathways for gifted female researchers are still needed.

SourcePLOS·JournalPLOS Biology·TypeMeta-analysis·DateNov 21, 2023

Syngas photocatalysis made easy

Researchers have developed a novel photocatalyst system that enables the production of syngas from methane steam reforming under atmospheric pressure. The system harnesses sunlight to split methane and water into hydrogen and carbon monoxide, forming syngas.

SourcePNAS Nexus·JournalPNAS Nexus·DateNov 21, 2023