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Science News for April 16, 2024


Cancer treatment: Experts propose specific and suited guidelines for the use and regulation of artificial intelligence

The authors suggest a regulatory approach that accommodates the unique characteristics of generalist AI models while ensuring patient safety and supporting physician decision-making. This is crucial as rigid frameworks may hinder progress in AI-driven healthcare, while hybrid approaches could be viable solutions.

SourceTechnische Universität Dresden·JournalNature Reviews Cancer·DateApr 16, 2024

UC Irvine researchers shine light on rapid changes in Arctic and boreal ecosystems

Studies show increasing wildfires accelerate changes in northern forests, replacing slow-growing black spruce forests with faster-growing deciduous shrubs. Additionally, Arctic-boreal ecosystems are experiencing increased growth of bigger deciduous shrubs, decreased organic soil layers, and escalating isoprene emissions, which affect t...

SourceUniversity of California - Irvine·JournalGlobal Change Biology·DateApr 16, 2024

Riesling wines: Human odorant receptor for characteristic petrol note identified for the first time

Researchers have identified the human odorant receptor responsible for the characteristic petrol note in German Riesling wines. The receptor, OR8H1, is triggered by UV exposure and high levels of carotenoids in grapes. This discovery may lead to new sensor technologies for food aromas and quality control purposes.

SourceLeibniz-Institut für Lebensmittel-Systembiologie an der TU München·JournalJournal of Agricultural and Food Chemistry·TypeExperimental study·DateApr 16, 2024

Physicists explain—and eliminate—unknown force dragging against water droplets on superhydrophobic surfaces

Researchers from Aalto University have identified the previously unidentified physics at play when water droplets move on superhydrophobic surfaces. By adapting a novel force measurement technique, they eliminated the drag-like force and proposed a solution to improve the performance of hydrophobic surfaces.

SourceAalto University·JournalProceedings of the National Academy of Sciences·DateApr 16, 2024

Following cellular lineage

A study published in Nature reveals the existence of source inhibitory neurons (dInNs) in humans that differ from other species. The researchers used mosaic variants to trace the lineage of brain cells and found that inhibitory and excitatory neurons share a common family name, indicating they share a cellular relationship.

Cooler transformers could help electric grid

A new study models the impact of high thermal conductivity paper on power transformer performance and life. The research aims to improve transformer efficiency by reducing hotspot temperatures, potentially doubling or tripling lifespan. Researchers used Stampede2 supercomputer simulations to test the effectiveness of engineered paper.

SourceUniversity of Texas at Austin·JournalHeliyon·TypeComputational simulation/modeling·DateApr 16, 2024

CO2 worsens wildfires by helping plants grow

A recent study by the University of California - Riverside found that carbon dioxide is driving an increase in the severity and frequency of wildfires by fueling the growth of plants that become kindling. This process occurs because plants use the extra CO2 to make carbohydrates, leading to an increase in biomass that burns.

SourceUniversity of California - Riverside·JournalCommunications Earth & Environment·DateApr 16, 2024

Discovery of bacterial proteins that induce asexual reproduction in insects

Researchers have identified two bacterial proteins, PifA and PifB, that mediate asexual reproduction in insect hosts by interfering with host chromosome segregation and gene expression. The discovery provides new avenues for studying Wolbachia-mediated reproductive manipulation.

SourceSMBE Journals (Molecular Biology and Evolution and Genome Biology and Evolution)·JournalGenome Biology and Evolution·TypeObservational study·DateApr 16, 2024

Water main breaks are rarely due to a single factor, new Concordia research finds

A study by Concordia researchers analyzed data from 13 Canadian utilities covering 26,000 km of pipes and 62,000 failures. They found age, material, and diameter were the most associated factors with breaks, but also revealed less well-known effects of pipe protection methods, soil types, and seasonal variations.

SourceConcordia University·JournalENVIRONMENTAL SYSTEMS RESEARCH·TypeData/statistical analysis·DateApr 16, 2024

Dual-beamline photoelectron momentum microscopy upgrade revolutionizes valence orbital analysis

Researchers upgraded a photoelectron momentum microscope to use two undulator beamlines, enabling element-selective measurements and precise analyses of valence orbitals. This innovation provides deeper insights into the behavior of electrons in materials, advancing fields like condensed matter physics and materials science.

SourceNational Institutes of Natural Sciences·JournalJournal of Synchrotron Radiation·TypeExperimental study·DateApr 16, 2024

New findings in JNCCN illustrate pathway for screening high-risk individuals for pancreatic cancer in PRECEDE study

The PRECEDE study found that nearly 80% of participants in the highest-risk cohort completed baseline imaging, highlighting the feasibility of improving early detection and prevention for pancreatic cancer. Researchers recommend sorting individuals into three groups based on family history and genetic mutations to tailor surveillance.

SourceNational Comprehensive Cancer Network·JournalJournal of the National Comprehensive Cancer Network·DateApr 16, 2024

New review offers first recommendations on accurately assessing the carbon footprint of coffee farming

A new scientific review published in Sustainable Production and Consumption explores how to accurately assess the carbon footprint of coffee farming. The study provides guidance on measuring green coffee's environmental impact, including identifying representative measurements and applying land use change modeling.

SourceKaizo·JournalSustainable Production and Consumption·TypeSystematic review·DateApr 16, 2024

Researchers reveal oceanic black carbon sink effect driven by seawater microdroplets

Researchers identify a degradation process that accelerates refractory pyrogenic carbon in coastal sediments. Seawater microdroplets facilitate this electrochemical degradation through interfacial electron transfer pathways, contributing to the ocean's carbon cycle.

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalJournal of the American Chemical Society·TypeCommentary/editorial·DateApr 16, 2024

Control of temperature dependent viscosity for manufacturing of Bi-doped active fiber

Researchers developed a novel temperature-dependent viscosity mediated strategy to control Bi dopant deactivation during fiber drawing. A borate glass system with faster viscosity changing rate was created, resulting in the first demonstration of on-off gain in a Bi-doped borate fiber system.

SourceInternational Journal of Extreme Manufacturing·JournalInternational Journal of Extreme Manufacturing·DateApr 16, 2024

Biodiversity is key to the mental health benefits of nature, new study finds

A new study from King's College London found that environments with a diverse range of natural features are associated with stronger improvements in mental wellbeing. The research, published in Scientific Reports, used citizen science data from nearly 2000 participants and found that the benefits can last for up to eight hours.

SourceKing's College London·JournalScientific Reports·TypeObservational study·DateApr 16, 2024

A new understanding of ion exchange

A team from the Liu Lab has shown that there is a general pathway for lithium and sodium ion exchange in layered oxide cathode materials. This discovery enables researchers to predict intermediate states and create more efficient processes for synthesizing materials.

SourceUniversity of Chicago·JournalNature Materials·TypeExperimental study·DateApr 16, 2024

Most massive stellar black hole in our galaxy found

Astronomers have identified a massive stellar black hole with a mass of 33 solar masses, making it the most massive found in the Milky Way. The black hole is located at 2000 light-years away and was discovered using data from the European Space Agency's Gaia mission.

SourceESO·JournalAstronomy and Astrophysics·DateApr 16, 2024

New tagging method provides bioadhesive interface for marine sensors on diverse, soft, and fragile species

A new tagging method, Bioadhesive Interface for Marine Sensors (BIMS), provides a rapid, non-invasive way to track marine animal movements and behaviors. BIMS uses a soft hydrogel-based adhesive that forms strong bonds with animal tissues, allowing for long-term monitoring of fragile species.

SourceWoods Hole Oceanographic Institution·JournalNature Communications·TypeObservational study·DateApr 16, 2024

Multidisciplinary research team creates computational models to predict heart valve leakage in children

A multidisciplinary team is developing computational models to predict heart valve leakage in children with specific birth defects. The models use 2D and 3D echocardiogram data to simulate the shape of valves and potential weak spots, enabling surgeons to plan surgeries more effectively.

SourceUniversity of Oklahoma·JournalAnnals of Biomedical Engineering·TypeComputational simulation/modeling·DateApr 16, 2024

Golden-hour water use efficiency: Pioneering crop productivity and sustainability in the face of water scarcity

A research team proposes a method to quantify the 'golden-hour water use efficiency' (GHW) trait, aiming to breed high-yielding and water-efficient crop varieties. The study focuses on the importance of balancing water conservation with biomass output in crops, offering a greener alternative for agricultural productivity.

SourceMaximum Academic Press·JournalVegetable Research·TypeExperimental study·DateApr 16, 2024

Reproductive success improves after a single generation in the wild for descendants of some hatchery-origin Chinook salmon

Researchers found that first-generation, wild-born descendants of hatchery-origin Chinook salmon produced more adult offspring than hatchery-origin salmon, improving reproductive success. This study offers hope for recovering endangered populations using hatchery-origin salmon.

SourceOregon State University·JournalEvolutionary Applications·TypeData/statistical analysis·DateApr 16, 2024

In search for alien life, purple may be the new green

A team of scientists has discovered that purple bacteria, which thrive in low-energy light, could be a sign of life on Earth-like planets. Using this knowledge, researchers have created models of purple worlds with varying conditions and cloud cover, revealing intense colored biosignatures from both wet and dry purple bacteria.

SourceCornell University·JournalMonthly Notices of the Royal Astronomical Society·DateApr 16, 2024

Island bats are valuable allies for farmers

A new study reveals that three island bat species feed on over 40% of agricultural pests, including banana moths and turnip moths. This finding highlights the importance of bats in maintaining ecosystem balance and suggests that encouraging these mammals can be a win-win for conservation and local farmers.

SourceUniversity of Oxford·JournalJournal of Mammalogy·DateApr 16, 2024

Older males out-compete young males when it comes to extra-marital breeding

A study found that when adult male blue tits were absent, young males had higher success rates in fathering offspring outside of their breeding pair. Young males' poor performance was due to competition with older males, not lack of experience. In the absence of adult males, 33% of young males fathered at least one extra-pair offspring.

SourcePLOS·JournalPLOS Biology·TypeExperimental study·DateApr 16, 2024

Care home staff and residents need ‘family’ bonds to thrive

The study found that staffing considerations such as stable and consistent staff, sufficient staff for family-like relationships, supporting staff, and key staff leading by example improve quality of care. Care homes with experienced care staff and higher staff-to-bed ratios are more likely to receive positive CQC ratings.

SourceUniversity of Leeds·JournalHealth and Social Care Delivery Research·DateApr 16, 2024

Twisted pollen tubes induce infertility

Researchers at ETH Zurich discovered a previously unrecognised mechanism for reduced fertility in polyploids, where twisted pollen tubes fail to reach the egg cells. The study found two genes controlling pollen tube growth, which are highly conserved and could be applied to plant breeding.

SourceETH Zurich·JournalScience·DateApr 16, 2024

In-situ alloying of NiTiNb shape memory alloys by additive manufacturing

Scientists at Shandong University have created a novel approach to fabricate high-performance NiTiNb shape memory alloys using laser powder bed fusion. The in-situ alloying process yields good mechanical and functional properties, surpassing conventional casting methods. By integrating material synthesis and structure forming, research...

SourceInternational Journal of Extreme Manufacturing·JournalInternational Journal of Extreme Manufacturing·DateApr 16, 2024

Revolutionizing plant grafting: Unveiling the role of TOR signalling in enhancing graft success and crop vigor

A research study investigates the role of TOR signalling in regulating seedling vigor, graft junction healing, and shoot-to-root communications. The study highlights the potential for improving grafting techniques and understanding plant communication to impact agricultural productivity and sustainability.

SourceMaximum Academic Press·JournalVegetable Research·TypeExperimental study·DateApr 16, 2024

How AI improves physician and nurse collaboration

A new AI-based model at Stanford Hospital predicts patient decline and flags physicians and nurses, enhancing communication and intervention. The study saw a significant improvement in clinical outcomes, with a 10.4% decrease in deterioration events among high-risk patients.

SourceStanford Medicine·JournalJAMA Internal Medicine·TypeObservational study·DateApr 16, 2024

Small extracellular vesicles from young blood, one of the most potent rejuvenating factors, extend lifespan by 22.7% and restore whole-body physiological functions

Small extracellular vesicles from young blood have been shown to dramatically extend lifespan, rejuvenate whole-body physiology, and reverse age-related degenerative changes in mice. The study demonstrates that these vesicles stimulate the expression of PGC-1  through their miRNA cargoes, ultimately improving mitochondrial functions.

SourceNanjing University School of Life Sciences·JournalNature Aging·TypeExperimental study·DateApr 16, 2024

Scientists identify cell vulnerability ‘fingerprint’ related to Parkinson’s, Lewy body dementia

Researchers at Van Andel Institute have identified a gene expression pattern, akin to a disease-related fingerprint, in brain cells with Lewy bodies. This finding sheds light on the molecular changes that occur in these cells, which are key pathological hallmarks of Parkinson's disease and some dementias.

SourceVan Andel Research Institute·JournalNature Communications·TypeExperimental study·DateApr 16, 2024

Working arrangements for locum doctors pose significant patient safety challenges

Qualitative research finds that locum doctors face significant patient safety challenges due to unfamiliar work environments, lack of support, and inadequate governance arrangements. The study calls on NHS leaders to rethink their approaches to engaging and supporting locums, and for locums themselves to reflect on their experiences.

SourceBMJ Group·JournalBMJ Quality & Safety·TypeCommentary/editorial·DateApr 16, 2024

Novel therapeutic bispecific antibodies for B-cell lymphoma

Researchers developed novel therapeutic bispecific antibodies targeting IgM and B-cell surface antigens, which directly inhibited cell proliferation via cell-cycle arrest and apoptosis in vitro. These findings suggest that anti-IgM/B-cell surface antigen-binding specific antibodies are promising therapeutic agents for B-cell malignancies.

SourceImpact Journals LLC·JournalOncotarget·TypeExperimental study·DateApr 16, 2024

Evidence of a pan-tissue decline in stemness during human aging

Researchers found that ~60% of tissues exhibit a significant negative correlation between age and stemness score, indicating a pan-tissue decline in stemness. This study adds weight to the idea that stem cell deterioration contributes to human aging, with hematopoietic stem cells from older individuals showing higher stemness scores.

SourceImpact Journals LLC·JournalAging-US·TypeObservational study·DateApr 16, 2024

Researchers at the University of Granada demonstrate the positive effect of melatonin in the prevention of obesity

The study found that chronic administration of melatonin prevents obesity and reduces visceral obesity by around 3%. Melatonin also enhances weight loss when combined with cold water bathing. The researchers recommend incorporating melatonin, natural light exposure, and physical activity into daily routines to manage obesity.

SourceUniversity of Granada·JournalBiomedicine & Pharmacotherapy·TypeExperimental study·DateApr 16, 2024

CNIC scientists identify therapeutic targets for the prevention of heart injury linked to cancer treatment

Scientists at CNIC have identified mechanisms by which anthracyclines damage the hearts of cancer patients, leading to cardiac injury. The study suggests that a protein-enriched diet may prevent muscle atrophy caused by anthracycline chemotherapy.

SourceCentro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)·JournalJACC CardioOncology·TypeExperimental study·DateApr 16, 2024