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Science News for May 22, 2024


Omnidirectional color wavelength tuning of stretchable chiral liquid crystal elastomers

Scientists have developed a method for achieving omnidirectional wavelength control, enabling simultaneous and multidirectional structural color tuning with highly flexible wavelength control. This breakthrough innovation promises to revolutionize tunable photonic applications, including electronic skin and optical sensing.

Building-kit catalyst

A metal-free organic framework catalyst has been developed for the electrocatalytic production of ethylene from carbon dioxide. The catalyst, based on a nitrogen-containing covalent organic framework (COF), demonstrated high selectivity and performance for the production of ethylene.

SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateMay 22, 2024

A simpler method for precise molecular orbital visualization

A new method for visualizing molecular orbitals has been developed, enabling scientists to analyze molecular dynamics and deformations in molecular films more easily. The technique, called PhaseLift-based photoemission orbital tomography (POT), allows for precise visualization of electronic states with a single set of measurements.

SourceChiba University·JournalThe Journal of Physical Chemistry A·TypeExperimental study·DateMay 22, 2024

Dispelling severe “morning sickness” myths—it’s not normal or harmless, but prevention and treatment might be on the way

Research reveals morning sickness is caused by hormone GDF15, linked to life-threatening hyperemesis gravidarum (HG). HG can lead to postnatal depression, preterm birth, autism spectrum disorder, and other complications. Expert Marlena Fejzo discusses potential treatments targeting GDF15 hormonal pathway.

SourceCell Press·JournalTrends in Molecular Medicine·TypeCommentary/editorial·DateMay 22, 2024

A new Transactions of Nonferrous Metals Society of China study unveils strategy for improving mechanical properties of aluminum composites

A new study from China reveals a novel strategy for enhancing the strength-ductility synergy of particle-reinforced aluminum matrix composites. The approach involves regulating the heterostructure of the matrix grain and particle distribution to achieve a balance between strength and ductility.

SourceCactus Communications·JournalTransactions of Nonferrous Metals Society of China·TypeExperimental study·DateMay 22, 2024

Extreme temperatures may increase risk of stroke mortality, especially in low-income countries

A new study found that extreme temperatures are associated with increased risks of death from ischemic and hemorrhagic strokes, particularly in low-income countries. The researchers analyzed data from over 3.4 million ischemic stroke deaths and 2.4 million hemorrhagic stroke deaths across 522 cities in 25 countries.

SourceHarvard T.H. Chan School of Public Health·JournalStroke·TypeObservational study·DateMay 22, 2024

UArizona Health Sciences professor uses CT network to promote public access to open science

Researchers are working to make publicly funded data collection in computed tomography widely available and understandable by diverse communities. The Non-Clinical Tomography Users Research Network aims to improve data handling across scientific disciplines and standardize data acquisition, handling, and sharing.

SourceUniversity of Arizona Health Sciences·JournalTomography of Materials and Structures·TypeComputational simulation/modeling·DateMay 22, 2024

Atypia of undetermined significance in thyroid fine needle aspiration cytology revisited

A 8-year retrospective review found that atypia of undetermined significance (AUS) in thyroid fine needle aspiration cytology diagnoses have a risk of malignancy after repeat sampling. Nuclear atypia is associated with upgrading and surgery, while architectural patterns are less predictive of malignancy.

SourceXia & He Publishing Inc.·JournalJournal of Clinical and Translational Pathology·DateMay 22, 2024

Gene could unlock big wheat yields for a growing population

Researchers have identified two transcription factors that can be edited to influence the number and arrangement of grain-bearing spikelets in wheat, potentially leading to increased yields. This discovery builds upon a traditional gene used to control wheat-flowering behavior, offering new avenues for improving crop productivity.

SourceUniversity of Adelaide·JournalCurrent Biology·TypeExperimental study·DateMay 22, 2024

Machine learning accelerates discovery of high-performance metal oxide catalysts

Researchers have developed a machine learning model to identify high-performance multicomponent metal oxide electrocatalysts for the oxygen reduction reaction. The study found that certain features, such as itinerant electrons and configuration entropy, are critical for achieving high current density in ORR.

SourceAdvanced Institute for Materials Research (AIMR), Tohoku University·JournalJournal of Materials Chemistry A·DateMay 22, 2024

Gentler cell therapies for blood cancer

Researchers have developed an approach to 'delete' a diseased blood system while building up a new, healthy one with donor blood stem cells. This process involves targeting specific antibodies coupled to a cytotoxic drug that recognize and destroy diseased blood cells while sparing healthy ones.

SourceUniversity of Basel·JournalNature·TypeExperimental study·DateMay 22, 2024

Twitter may be overlooking misinformation "superspreaders" - political pundits, low-credibility media outlets, and influencers who use more toxic language than the typical misinformation spreader

Researchers identify superspreaders of low-credibility content on Twitter, including political pundits and low-credibility media outlets that spread toxic language. The study suggests that these individuals and groups are overlooked by Twitter's algorithm despite being more effective at spreading misinformation.

SourcePLOS·JournalPLOS ONE·DateMay 22, 2024

Stroke-care metrics improve with stroke center certification and coordinators

Researchers found that hospitals with stroke center certification and coordinators have substantially better door-to-needle times for stroke patients, improving outcomes. The study highlights the importance of foundational infrastructure in telestroke programs, particularly for smaller hospitals.

SourceMedical University of South Carolina·JournalJournal of Stroke and Cerebrovascular Diseases·TypeData/statistical analysis·DateMay 22, 2024

Excavation reveals ‘major’ ancient migration to Timor Island

Researchers have re-evaluated the route of early human migration to Australia, finding that ancient humans arrived on Timor Island at least 50,000 years ago. The discovery of thousands of stone artefacts and animal bones in a deep cave in Timor Island suggests that humans used New Guinea as a stepping stone for their crossing.

SourceAustralian National University·JournalNature Communications·TypeComputational simulation/modeling·DateMay 22, 2024

The role of three-dimensional power doppler for detecting ovarian cancer in adnexal masses

This meta-analysis evaluated the diagnostic performance of three-dimensional power Doppler (3DPD) for detecting ovarian cancer in adnexal masses. The results show that 3DPD has good sensitivity and specificity, particularly in complex or suspicious masses. However, it does not add significant value to current 2D US-based approaches.

SourceXia & He Publishing Inc.·JournalOncology Advances·DateMay 22, 2024

Insights into functions of micronutrient transporters may pave way for new treatments for neurological diseases

Scientists have discovered the transporters responsible for delivering essential nutrients choline and ethanolamine to human cells. The study sheds light on the atomic structure of these transporters and their role in distributing micronutrients throughout the body, providing a foundation for new therapeutic approaches.

Learning neural operators on Riemannian manifolds

A new neural operator concept, NORM, has been proposed to learn operators defined on irregular Riemannian manifolds. The proposed method demonstrated superior performance in solving partial differential equations and engineering cases, including blood flow dynamics prediction and composite workpiece deformation.

SourceScience China Press·JournalNational Science Open·DateMay 22, 2024

U-M study: Using 'tweezers' to control active fluids

Researchers at the University of Michigan have devised a way to manipulate active fluids by controlling their topological defects using tweezers-like technology. This allows for the systematic control of individual components within the fluid, opening up new possibilities for controlling and manipulating complex systems.

SourceUniversity of Michigan·JournalProceedings of the National Academy of Sciences·DateMay 22, 2024

Health and economic benefits of breastfeeding quantified

A new study published in PLOS ONE found that exclusively breastfed infants used fewer healthcare services and incurred lower costs compared to formula-fed infants. This could have avoided £10 million in healthcare costs if all formula-fed infants were exclusively breastfed for the first 6-8 weeks of life.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateMay 22, 2024

25-year longitudinal study shows mothers’ empathy for teens may predict teens’ empathy for friends and future parenting

A new study tracks three generations of family relationships, finding that mothers' empathetic responses to their teenage children can predict the teens' empathetic behavior towards their closest friends. This long-term study highlights the importance of adolescent friendships in developing essential social skills like empathy and supp...

SourceSociety for Research in Child Development·JournalChild Development·TypeObservational study·DateMay 22, 2024

Bolstering environmental data science with equity-centered approaches

This article introduces and validates two methodologies, the Systemic Equity Framework and Wells-Du Bois Protocol, to integrate socioecological equity into environmental data science and machine learning. These tools aim to mitigate inequity and ensure fair benefits for all communities, particularly marginalized groups.

SourceHigher Education Press·JournalFrontiers of Environmental Science & Engineering·TypeExperimental study·DateMay 22, 2024

Discernible disparities in atmospheric circulation and precursor anomalies exerting influence on extreme precipitation events across diverse regions of the Tibetan Plateau

Researchers identified three distinct spatial types of summer extreme precipitation on the Tibetan Plateau, each influenced by unique atmospheric circulation patterns and precursor anomalies. The study provides a more robust foundation for predicting extreme precipitation events during the summer season in this region.

SourceScience China Press·JournalScience China Earth Sciences·DateMay 22, 2024

Can diet help with advanced breast cancer? All indications are positive, researchers say

A small study at the University of Rochester Medical Center found that women with stage 4 breast cancer who followed a whole-foods plant-based diet experienced significant weight loss, improved cholesterol levels, and reduced fatigue. The diet also showed promise in reducing inflammation and changes in blood levels of amino acids.

SourceUniversity of Rochester Medical Center·JournalBreast Cancer Research and Treatment·TypeRandomized controlled/clinical trial·DateMay 22, 2024

Researchers find key differences in brain development between autistic boys and girls

A new study found significant differences in brain development between autistic boys and girls, with autistic females showing a thicker cortex at age 3 and faster cortical thinning into middle childhood. The findings highlight the need for longitudinal studies that include both sexes to better understand sex-specific changes in autism.

SourceUniversity of California - Davis Health·JournalMolecular Psychiatry·DateMay 22, 2024

New resource pinpoints inner workings of sorghum plant cells

A new resource has been created to provide a deeper understanding of the bioenergy crop sorghum and its potential for genetic modification. The study identified gene expression patterns in sorghum stem cells, which can help researchers design cell-type specific promoters for targeted gene expression.

Controlling the chaos of active fluids

Physicists at UCSB and collaborators have created a framework to manipulate self-sustained chaotic flows in active fluids by controlling topological defects. This allows for the engineering of self-powered fluids with tunable flows, paving the way for applications in biological processes, soft robotics, and fluid-based logic devices.

SourceUniversity of California - Santa Barbara·JournalProceedings of the National Academy of Sciences·DateMay 22, 2024

Climate-smart marine spatial planning in Antarctica can be a model for the global ocean

Researchers propose comprehensive strategy for climate-smart marine spatial planning (MSP) in the Southern Ocean, integrating diverse interests and addressing climate stressors. MSP can serve as a testbed for international waters, informing implementation of the UN Agreement on marine biodiversity beyond national jurisdiction.

HPV testing for cervical cancer may be safe at longer intervals than what current guidelines recommend

A study found that the risk of detecting cervical precancer eight years after a negative HPV screening was similar to the risk after three years after a negative cytology screening. Longer intervals between HPV screens showed lower risk of cervical precancer after six and eight years.

SourceAmerican Association for Cancer Research·JournalCancer Epidemiology Biomarkers & Prevention·DateMay 22, 2024

New evidence suggests link between teen cannabis use and psychotic disorders may be stronger than previously thought

A new study suggests that teens using cannabis are at an 11 times higher risk of developing a psychotic disorder compared to those not using cannabis. The research found a strong association between cannabis use and risk of psychotic disorder in adolescence, but not in young adulthood.

SourceInstitute for Clinical Evaluative Sciences·JournalPsychological Medicine·TypeObservational study·DateMay 22, 2024

GZ17-6.02 kills PDX isolates of uveal melanoma

Researchers found that GZ17-6.02 killed uveal melanoma cells by enhancing autophagy, inactivating key proteins, and reducing growth factors. The compound also interacted with doxorubicin and ERBB inhibitors to enhance tumor cell killing, suggesting potential as a single agent or combination therapy.

SourceImpact Journals LLC·JournalOncotarget·TypeExperimental study·DateMay 22, 2024

New AI accurately predicts fly behavior

A new AI model developed by Cold Spring Harbor Laboratory's Benjamin Cowley and team uses a 'population code' to predict fruit fly behavior, revealing that multiple neurons combine to sculpt actions. The breakthrough enables the AI to accurately predict how real flies will behave in response to visual stimuli.

Investigating the dynamic creep and the tensile performance of zeolitic tuff-modified warm asphalt mixtures

This study investigates the impact of Zeolitic tuffs on the dynamic creep and tensile performance of Superpave asphalt mixtures. The results show that incorporating Zeolitic tuffs improves the mixtures' resistance to rutting and fatigue, with enhanced performance at 25% and 50% filler concentrations.

SourceBentham Science Publishers·JournalThe Open Transportation Journal·DateMay 22, 2024

Mimicking infection in pregnant mice provokes persistent changes in juvenile brains

Researchers at Harvard University have identified a specific cell type in the mouse embryonic brain that responds to an immune response in the mother, altering gene regulation and persisting in juvenile mice. This study provides new insights into how maternal immune responses might influence brain development in embryos, potentially sh...

SourceThe Company of Biologists·JournalDevelopment·TypeExperimental study·DateMay 22, 2024

Roots are a key to drought-tolerant maize

A study led by the University of Bonn analyzed over 9,000 maize varieties to identify their root structures and adaptability to dry conditions. The researchers found that seminal roots, which absorb nutrients rapidly, vary in number depending on the variety's ability to cope with drought.

SourceUniversity of Bonn·JournalNature Genetics·TypeExperimental study·DateMay 22, 2024

Study: Social networks can influence perception of climate-change risk

New research from the University of Illinois found that social networks can influence flood insurance sign-ups nationwide depending on how socially connected a county was to flooded areas. Exposure to disaster information through social media feeds prompts people to update their views on climate change risks, leading to changes in loca...

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalEconomic Inquiry·TypeData/statistical analysis·DateMay 22, 2024

Chlorine radical-mediated photocatalytic C(sp3)−H bond oxidation of aryl ethers to esters

Researchers developed a novel photocatalytic strategy for functionalizing ether C(sp3−H bonds in aryl ethers, resulting in high yields of ester products. The method uses chlorine radicals generated from various chloride sources to activate aryl ether C(sp3−H bonds through hydrogen atom transfer.

I’ll have what she’s having!

A new study from Flinders University found that feeling connected to a social group can lead people to make healthier food choices. The research tested the idea that people are more likely to adopt healthy eating habits if they feel like they belong to the same group as those promoting healthy eating.

SourceFlinders University·JournalAppetite·TypeSurvey·DateMay 22, 2024

Gene cluster expression index and potential indications for targeted therapy and immunotherapy for lung cancers

A novel gene cluster expression analysis was introduced to potentially expand treatments for more lung cancer patients. The study found that a gene cluster expression index can classify cancers with dramatically different recurrence risks, with higher risk groups suitable for targeted therapy or immunotherapy.

SourceXia & He Publishing Inc.·JournalCancer Screening and Prevention·DateMay 22, 2024

Using wobbling stellar material, astronomers measure the spin of a supermassive black hole for the first time

Researchers at MIT have developed a new method to measure the spin of supermassive black holes by tracking the pattern of X-ray flashes produced during tidal disruption events. By analyzing the wobble of the accretion disk, they were able to determine that the nearby black hole was spinning at less than 25% the speed of light.

Autistic-led study reveals urgent priorities for supporting autistic girls and gender diverse youth

A new study reveals the challenges faced by autistic girls, women and gender diverse people in healthcare, education and society. Autistic young people express a pressing need for tailored support at school, better understanding of their experiences and strengths, and specialised mental health services.

SourceUniversity of Technology Sydney·JournalJournal of Autism and Developmental Disorders·TypeSurvey·DateMay 22, 2024

Subtle cognitive decline precedes end to driving for older adults

A new study found that subtle cognitive changes can foreshadow the decision for many seniors to stop driving. Routine cognitive testing may help older adults and their physicians make decisions about driving to maximize safety while preserving independence. Women are more likely to stop driving than men, according to the findings.

SourceWashU Medicine·JournalNeurology·TypeObservational study·DateMay 22, 2024

Wearable ultrasound patch enables continuous, non-invasive monitoring of cerebral blood flow

Researchers developed a wearable ultrasound patch that provides three-dimensional data on cerebral blood flow, addressing clinical standard limitations. The device offers hands-free, continuous monitoring and was tested on healthy volunteers with accurate results, paving the way for potential use in patients with neurological conditions.

How a multi-lens telescope enables daytime astronomy observations

Astronomers at Macquarie University have successfully tested a new technique for observing celestial objects during the day using the Huntsman Telescope. The array of camera lenses can accurately measure stars, satellites, and other targets even when the Sun is high overhead, allowing continual monitoring of bright stars like Betelgeuse.

SourceMacquarie University·JournalPublications of the Astronomical Society of Australia·TypeObservational study·DateMay 22, 2024

Signatures of heart attack

The study identified specific patterns in blood samples of patients who had different clinical outcomes after a heart attack. These patterns, known as 'immune signatures', are associated with either better or worse recovery of heart function. The findings could lead to the development of new diagnostics and treatments for heart failure.

SourceLudwig-Maximilians-Universität München·JournalNature Medicine·DateMay 22, 2024

Navigating the future of secure and efficient intelligent transportation systems using AI and blockchain

Researchers investigate traditional encryption limitations in practical communication scenarios, exploring the effectiveness of Deep Reinforcement Learning (DRL) and Blockchain technology in autonomous vehicles. DRL and Blockchain integration improves performance, lowers training costs, and creates secure, globally accessible transport...

SourceBentham Science Publishers·JournalThe Open Transportation Journal·DateMay 22, 2024

Novel high-performance and sustainable paper coating material created by KAIST-Yonsei University research team to reduce microplastic​ pollution​

The KAIST-Yonsei University research team has developed a novel, high-performance paper coating material made from biodegradable plastic that improves the sustainability of paper packaging. The coating material was tested for its biodegradability and found to achieve 59-82% biodegradation in marine environments.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalGreen Chemistry·TypeMeta-analysis·DateMay 22, 2024

Realizing high-efficiency thermoelectric module by suppressing donor-like effect and improving preferred orientation in n-type Bi2(Te, Se)3

By introducing extra Cu and employing a two-step hot deformation process, researchers improve the carrier mobility of n-type Bi2(Te,Se)3, leading to enhanced thermoelectric properties. This results in high-efficiency thermoelectric modules with superior cooling and generation capabilities.

SourceScience China Press·JournalScience Bulletin·DateMay 22, 2024

Strings that can vibrate forever (kind of)

Scientists from TU Delft and Brown University engineer string-like resonators capable of vibrating for extended periods at room temperature, enabling sensitive sensing applications. The innovation uses advanced nanotechnology techniques and machine learning algorithms to create ultra-long strings with minimal energy loss.

SourceDelft University of Technology·JournalNature Communications·TypeExperimental study·DateMay 22, 2024

How do migrants choose their destinations?

A new mathematical model developed by researchers at the Complexity Science Hub shows how diaspora size affects migration flows. The study reveals that people migrate to smaller destinations if their diaspora is present, highlighting the importance of social influence in shaping migration patterns.

SourceComplexity Science Hub·JournalPNAS Nexus·TypeComputational simulation/modeling·DateMay 22, 2024

Future climate impacts put whale diet at risk

A new study predicts that future climate change will disrupt humpback whales' krill-heavy diet, as their primary prey item Antarctic krill becomes less abundant. The research found that all tested whale populations relied on Antarctic krill, which is essential for their migratory lifestyle.

SourceGriffith University·JournalScience of The Total Environment·DateMay 22, 2024

University of Bath scientists develop new battery-free lactic acid sensor

The researchers created a chemosensor that detects lactic acid levels in saliva without the need for an electrical power source, opening up possibilities for easy use in remote locations. The sensor uses graphene foam technology to measure changes in quantum capacitance when lactate binds, allowing for lower-cost and more reliable trac...

SourceUniversity of Bath·JournalACS Sensors·TypeExperimental study·DateMay 22, 2024

San Francisco study explores the growing culture of fentanyl smoking

A new study explores the growing fentanyl smoking culture in San Francisco, highlighting individual experiences and local trends. Participants reported fear of overdose and challenges with injecting as motivations for switching to smoking, but some expressed concerns about hygiene and residue risks.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateMay 22, 2024

How a landscape intervention method can be used to address inequalities in electronic waste treatment process?

This study introduces a landscape intervention method to address unequal e-waste treatment, focusing on ecological restoration and local community benefits. The proposed approach combines five concepts: ecological restoration, flood management, stormwater purification, spatial programs, and livelihood income.

SourceHigher Education Press·JournalLandscape Architecture Frontiers·TypeExperimental study·DateMay 22, 2024

New insights into the degradation dynamics of organic material in the seafloor

Researchers found that microbial communities can stimulate decomposition of both fresh and old organic matter, with significant implications for the marine carbon cycle. The study suggests that increased input of fresh organic matter due to climate change could lead to a disproportionate effect on degradation of refractory organic matter.

Female judges tend to hand down harsher sentences in cases involving sex offences

A recent study by researchers at the Universitat Oberta de Catalunya (UOC) found that female judges tend to hand down longer sentences in cases involving sexual abuse and assault. The study analyzed over 2,200 cases and concluded that the sex of the presiding judge has a significant impact on sentence length.

SourceUniversitat Oberta de Catalunya (UOC)·JournalCriminology and Criminal Justice·TypeData/statistical analysis·DateMay 22, 2024

Unlocking the secrets of supercritical fluids

A team of international researchers has measured the molecular diffusion coefficient of a supercritical fluid, revealing a gradual transition from gas-like to liquid-like behavior across the Widom line. This study contributes to our understanding of supercritical fluid dynamics and holds implications for planetary science.

SourceInstitut Laue-Langevin·JournalNature Communications·TypeExperimental study·DateMay 22, 2024