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Science News for June 6, 2024


JWST uncovers features of very-low-mass star’s protoplanetary disk that influence planet composition

The James Webb Space Telescope has found a carbon-rich chemistry with 13 carbon-bearing molecules in the protoplanetary disk surrounding ISO-ChaI 147, a young 0.11-solar-mass star. This high carbon/oxygen ratio suggests radial transport of material within the disk, potentially affecting planet composition.

First-of-its-kind test can predict dementia up to nine years before diagnosis

Researchers at Queen Mary University of London developed a predictive test using fMRI scans that detects changes in the brain's 'default mode network' to predict dementia. The test showed accurate predictions up to nine years before an official diagnosis, with greater than 80% accuracy and a two-year margin of error.

SourceQueen Mary University of London·JournalNature Mental Health·TypeObservational study·DateJun 6, 2024

Tropical forests adjust strategies to thrive even when soils are nutrient poor

A new study suggests that tropical forests can overcome the challenge of scarce nutrients by adjusting their strategies for acquiring phosphorus. Forests of different ages respond differently to nutrient additions, with younger forests investing in nitrogen-based strategies and older forests relying on phosphatase to access phosphorus.

SourceCary Institute of Ecosystem Studies·JournalNew Phytologist·TypeExperimental study·DateJun 6, 2024

Determining sex in ants

A noncoding gene has been identified as the deciding factor in determining sex in Argentine ants, with a specific genomic region being crucial to this process. The gene does not encode a protein but rather produces an RNA that influences sex determination.

SourceJohannes Gutenberg Universitaet Mainz·JournalScience Advances·DateJun 6, 2024

Calcium oxide’s quantum secret: nearly noiseless qubits

A team of researchers has found a way to create nearly noiseless qubits in calcium oxide, a promising material for quantum computing and communication. The discovery was made using theoretical and computational approaches, and the results show that the qubits can store information with extremely low levels of noise for an extended period.

SourceUniversity of Chicago·JournalNature Communications·DateJun 6, 2024

Pertussis outbreak in neonates and young infants across Italy, January to May 2024: implications for vaccination strategies

A recent pertussis outbreak in Italy has highlighted the critical need for public health interventions such as maternal immunization and early vaccination of infants. The study found that most cases occurred in unvaccinated children, with a significant increase in hospitalizations compared to previous years.

SourceEuropean Centre for Disease Prevention and Control (ECDC)·JournalEurosurveillance·TypeSurvey·DateJun 6, 2024

Silkworms help grow better organ-like tissues in labs

Researchers at Duke University created an ultrathin silk membrane that helps cells grow into functional tissues used for research, enabling the development of kidney disease models. The new membrane improves communication and growth between cells, mimicking natural human organ structures.

SourceDuke University·JournalScience Advances·TypeExperimental study·DateJun 6, 2024

Adding nurse case managers to telehealth significantly lowers blood pressure in Black and Hispanic stroke survivors

Low-income Black and Hispanic stroke survivors with uncontrolled hypertension experienced a more than two-fold reduction in blood pressure when tracked at home and sent readings to a nurse. Nurse case management enhanced telehealth programs showed significant benefits for this vulnerable population.

Seeking social proximity improves flight routes among pigeons

A study by Dr. Edwin Dalmaijer found that pigeons' desire for social proximity leads to improved flight paths as younger birds learn from older ones. This generational improvement in route efficiency is similar to those seen in real-life data, suggesting a key role for social factors in navigation.

SourcePLOS·JournalPLOS Biology·TypeComputational simulation/modeling·DateJun 6, 2024

Trust and acceptance among gastroenterologists for AI to be used in clinics and hospitals, finds NTU Singapore study

A recent NTU Singapore study found that eight in ten gastroenterologists accept and trust the use of AI-powered tools in diagnosing and assessing colorectal polyps. The study, which surveyed 165 doctors in the Asia-Pacific region, also found that more experienced gastroenterologists perceived a lower risk of AI tools.

SourceNanyang Technological University·JournalJournal of Controlled Release·DateJun 6, 2024

Mapping noise to improve quantum measurements

Researchers developed a new method, Fourier Transform Noise Spectroscopy (FTNS), to analyze the noise affecting qubits, revealing its frequency spectrum. This approach handles various types of noise, including complex patterns, making it a more practical solution for widespread use.

SourceJILA·Journalnpj Quantum Information·TypeComputational simulation/modeling·DateJun 6, 2024

Fish in schools have an easier time swimming in rough waters

A recent study found that schooling fish expend up to 79% less energy while swimming in turbulent water compared to solitary fish. This suggests that traveling in schools allows fish to shield each other from disruptive water currents, making it easier to swim through rough waters.

SourcePLOS·JournalPLOS Biology·TypeExperimental study·DateJun 6, 2024

Novel diamond quantum magnetometer for ambient condition magnetoencephalography

Researchers have developed a highly sensitive diamond quantum magnetometer that can achieve practical ambient condition magnetoencephalography. The novel magnetometer uses a single crystalline diamond to detect magnetic fields, achieving record sensitivities of up to 9.4 pT Hz-1/2 in the frequency range of 5 to 100 Hz.

SourceTokyo Institute of Technology·JournalPhysical Review Applied·TypeExperimental study·DateJun 6, 2024

Innovative combination therapy shows promise for bladder cancer patients unresponsive to standard treatment

A novel combination of oncolytic virus and immune checkpoint inhibitor has shown remarkable efficacy in treating non-muscle invasive bladder cancer, with a complete response rate of 57.1% at 12 months. The therapy demonstrated durable responses, with a median duration of response not yet reached after a median follow-up of 26.5 months.

SourceH. Lee Moffitt Cancer Center & Research Institute·JournalNature Medicine·TypeRandomized controlled/clinical trial·DateJun 6, 2024

Flavor restrictions affect tobacco buyers differently depending on socioeconomic status, researchers say

Researchers found that restricting menthol flavor in cigarettes while making nicotine replacement therapy more available can decrease socioeconomic disparities in tobacco use. The study used an online platform to simulate the effects of policy changes on purchase behavior, showing that policies must consider interplay to be effective.

SourceVirginia Tech·JournalNicotine & Tobacco Research·TypeData/statistical analysis·DateJun 6, 2024

Political connections fuel innovation in emerging markets, but talent makes the difference

A new study from the University of Surrey reveals that political connections can drive innovation in emerging markets, but only with highly skilled employees. The research analyzed over 3,200 Chinese-listed businesses and found that companies with talented teams can better utilize resources and knowledge from political connections, lea...

SourceUniversity of Surrey·JournalInternational Business Review·DateJun 6, 2024

Diagnosing damaged infrastructure from space

Researchers at Texas A&M University have developed a method of monitoring infrastructure using Synthetic Aperture Radar (SAR) remote sensing systems. This technology allows for early detection of issues, reducing the need for time-consuming repairs.

SourceTexas A&M University·JournalTransportation Research Record Journal of the Transportation Research Board·DateJun 6, 2024

Association for Molecular Pathology publishes evidence-based recommendations for tumor mutational burden testing

The Association for Molecular Pathology has published guidelines for tumor mutational burden (TMB) testing, aiming to standardize calculation and reporting of TMB as a predictive biomarker for immune checkpoint inhibitor therapies. These recommendations emphasize the importance of comprehensive methodological descriptions in publications.

SourceAssociation for Molecular Pathology·JournalJournal of Molecular Diagnostics·DateJun 6, 2024

Frequent, low-severity fire supports habitat for threatened owls: Collaborative research yields insights for wildlife habitat management

A collaborative research study found that frequent, low-severity fires support Mexican spotted owl habitat, while high-severity fire is detrimental. This finding suggests that restoring historic fire regimes could benefit both owl conservation and forest resilience.

SourceUSDA Forest Service - Rocky Mountain Research Station·JournalFire Ecology·TypeObservational study·DateJun 6, 2024

The first example of cellular origami

Researchers Manu Prakash and Eliott Flaum have discovered a new geometric mechanism in the single-cell organism Lacrymaria olor, enabling it to produce complex morphodynamics through curved-crease origami. The cell's cytoskeletal structure encodes this behavior, which is driven by a singularity that acts as a controller.

SourceStanford University·JournalScience·DateJun 6, 2024

Study identifies potential pathway to reducing breast cancer brain metastases

A study led by researchers from the University of Arizona Cancer Center identified a biological mechanism that could lead to more effective treatments for breast cancer that has metastasized to the brain. By targeting the autophagy pathway, the researchers were able to disrupt breast cancer cells' ability to form brain metastases.

SourceUniversity of Arizona Health Sciences·JournalClinical and Translational Medicine·TypeRandomized controlled/clinical trial·DateJun 6, 2024

Doctors advise caution as energy drinks may trigger life-threatening cardiac arrhythmias in patients with genetic heart diseases

A study published in Heart Rhythm examined the potential dangers of energy drink consumption in patients with genetic heart diseases. The research found a temporal relationship between energy drink consumption and sudden cardiac arrest events, but caution is advised due to the small relative risk.

SourceElsevier·JournalHeart Rhythm·TypeData/statistical analysis·DateJun 6, 2024

Increased lifespan of individuals living with cerebral palsy necessitates a broader perspective on care

A special issue of the Journal of Pediatric Rehabilitation Medicine explores cerebral palsy beyond childhood, highlighting topics like mental health, sexuality, and independence in adults. The issue aims to address long-overlooked aspects of CP care, promoting a broader perspective for improved patient outcomes.

SourceIOS Press·JournalJournal of Pediatric Rehabilitation Medicine·TypeExperimental study·DateJun 6, 2024

Harposporium incensis sp. nov., a South American cordycipitoid species exhibiting inter-phylum host-jumping and having potential as a biological control agent for pest management

A new species of cordycipitoid fungi, Harposporium incensis sp. nov., has been identified with the ability to parasitize both Lepidoptera insects and nematodes, showcasing inter-phylum host-jumping capabilities. This finding suggests potential as a biological control agent for managing pest diseases.

SourceTsinghua University Press·JournalMycology: An International Journal on Fungal Biology·DateJun 6, 2024

Researchers develop microneedle patch to reverse hair loss caused by autoimmune disease

A new microneedle patch has been developed to treat autoimmune disease alopecia areata by delivering immune regulators to affected skin areas, promoting lasting hair regrowth. The approach restores immune balance and resolves T cell attack on hair follicles, offering a potential long-term solution without compromising the immune system.

SourceBrigham and Women's Hospital·JournalAdvanced Materials·DateJun 6, 2024

Heavy lifetime cannabis use and mortality by sex

A recent study published in JAMA Network Open found a positive association between heavy lifetime cannabis use and cardiovascular disease mortality among female participants. The study suggests that long-term cannabis use may have negative effects on mortality rates, highlighting the need for further research.

SourceJAMA Network·JournalJAMA Network Open·DateJun 6, 2024

Widespread use of high-assay low-enriched uranium raises significant nuclear security concerns

The widespread adoption of high-assay low-enriched uranium (HALEU) threatens the international system of controls preventing nuclear weapons proliferation for over 30 years. HALEU's high enrichment levels pose significant security risks, making it possible for a single reactor to contain enough material for a nuclear weapon.

Scientists in Brazil and India collaborate on research to create promising treatment for solid tumors

Researchers created nanomicelles containing substances already approved for human use, which reduced inflammation in the tumor microenvironment and facilitated the action of the immune system. The treatment induced a reduction of over five times in tumor volume compared to untreated tumors.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalJournal of Controlled Release·DateJun 6, 2024

Breaking data transmission barriers: Innovations in data center interconnects

Researchers have developed a groundbreaking solution to overcome DAC challenges, achieving record-breaking data transmission performance. The innovative approach enables the transmission of signals at rates exceeding 124 GBd PAM-4/6 and 112 GBd PAM-8 over long distances using low-cost digital-to-analog converters.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics Nexus·DateJun 6, 2024

Analysis finds high assay low-enriched uranium fuel to be produced for small nuclear power reactors poses a greater proliferation threat than previously acknowledged

An analysis published in Science found that high assay low-enriched uranium (HALEU) fuel can be used directly to make nuclear weapons, posing a significant threat to terrorism and nuclear proliferation. Many proposed reactors could contain enough HALEU to make a nuclear weapon, increasing security risks.

SourceUnion of Concerned Scientists·JournalScience·DateJun 6, 2024

New study challenges 'pop psychology' myths about habits

Researchers at the University of Surrey challenge common misconceptions about habits, suggesting they are mental links between situations and actions. Forming new habits can help, but doesn't guarantee success; instead, strategies like avoiding triggers or replacing bad habits with good ones can increase chances of long-term change.

SourceUniversity of Surrey·JournalSocial and Personality Psychology Compass·DateJun 6, 2024

How does oxygen depletion disrupt memory formation in the brain?

Scientists at Okinawa Institute of Science and Technology identify a positive glutamate-NO-glutamate feedback loop that blocks long-term potentiation and impairs learning and memory. The study suggests that this loop may explain memory loss in stroke patients and potentially offer a solution for treatment.

HKUST researcher developed liquid metal-based electronic logic device that mimics intelligent prey-capture mechanism of Venus flytrap

A research team led by HKUST developed a liquid metal-based electronic logic device that mimics the intelligent prey-capture mechanism of Venus flytraps. The device exhibits memory and counting properties, allowing it to respond intelligently to stimulus sequences without additional components.

SourceHong Kong University of Science and Technology·JournalNature Communications·TypeExperimental study·DateJun 6, 2024

New technology gives people a better sense of what they’re breathing

Scientists developed a miniaturized micro-spectrometer to detect multiple toxic and greenhouse gases, offering increased control over individual exposure. The technology uses machine learning and metasurface spectral filter arrays to create a compact sensor that can be integrated into wearable devices.

SourceARC Centre of Excellence for Transformative Meta-Optical Systems·JournalMicrosystems & Nanoengineering·TypeExperimental study·DateJun 6, 2024

Low doses of kretek cigarette smoke altered rat lung histometric, and overexpression of the p53 gene

A study found that low doses of filtered kretek cigarette smoke altered rat lung histometric measurements, increasing the size of respiratory bronchioles. P53 gene overexpression was also observed in response to exposure. The findings suggest potential health risks from even low levels of kretek cigarette smoke.

SourceBentham Science Publishers·JournalThe Open Respiratory Medicine Journal·DateJun 6, 2024

Desert hero unveiled: Cissus quadrangularis genome decodes drought survival tactics

A recent study has unlocked the genetic secrets of Cissus quadrangularis, a desert-dwelling plant with extraordinary drought tolerance. The discovery sheds light on its Crassulacean acid metabolism (CAM) pathway and genetic adaptations, providing insights into developing crops that can withstand water scarcity.

The butterfly effect: excessive vegetation in Arabia triggered massive butterfly migrations in 2019 across Europe and Africa

A 2019 study found that high vegetation growth in the Middle East attracted painted lady butterflies, which then migrated across Europe and Africa. Pollen analysis revealed the origins of the migration routes, highlighting the importance of citizen science and monitoring insect migrations.

SourceSpanish National Research Council (CSIC)·JournalCurrent Biology·TypeExperimental study·DateJun 6, 2024

The body’s own lipids affect mental disorders: Can specific inhibitors help?

Research suggests that altered lipid signaling in brain cells contributes to mental disorders, with specific inhibitors showing promise in rebalancing this mechanism. The study found similar changes in both human patients and healthy relatives, as well as mice with genetic disorders, opening up new treatment opportunities.

SourceUniversity of Cologne·JournalMolecular Psychiatry·TypeExperimental study·DateJun 6, 2024

Rensselaer researchers upend theory about the formation of the Milky Way Galaxy

Heidi Jo Newberg and Tom Donlon's research using Gaia data reveals the Milky Way Galaxy's last major collision occurred billions of years later than previously thought. The team found that the galaxy's wrinkles, formed by collisions with other galaxies, dissipated over time, allowing them to trace the timing of the final collision.

SourceRensselaer Polytechnic Institute·JournalMonthly Notices of the Royal Astronomical Society·DateJun 6, 2024

The rise of horse power ~4,200 years ago

Researchers found that domestic horses were produced in large numbers around 4200 years ago, marking the start of a new era in human history. This led to unprecedented exchanges and interactions among diverse cultures across Eurasia.

SourceCNRS·JournalNature·TypeData/statistical analysis·DateJun 6, 2024

How do you know where a fish goes?

A new method developed by researchers at Florida Atlantic University and the Smithsonian Environmental Research Center improves the accuracy of acoustic tracking in marine animals. The method uses a movement model to reconstruct animal tracks, even in regions with uneven receiver coverage.

SourceFlorida Atlantic University·JournalMethods in Ecology and Evolution·TypeComputational simulation/modeling·DateJun 6, 2024

Omega-3 therapy prevents birth-related brain injury in newborn rodents

A study by Columbia University researchers found that an injectable omega-3 emulsion can prevent brain damage in newborn rodents after oxygen deprivation near birth. The therapy, which enhances omega-3 fatty acids' ability to penetrate the blood-brain barrier, reduced brain damage and preserved neurologic function.

SourceColumbia University Irving Medical Center·JournalBiomedicine & Pharmacotherapy·TypeExperimental study·DateJun 6, 2024

Can big cats sing parsley, sage, rosemary, and thyme?

A study by Kyoto University found that snow leopards consume the plant genus Myricaria in their feces when hungry. This suggests a link between prey and plant intake in these large alpine cat carnivores. The research provides insight into improved captive environments and suitable conservation plans for snow leopards.

SourceKyoto University·JournalRoyal Society Open Science·TypeData/statistical analysis·DateJun 6, 2024

Only around half of individuals disclose or believe they should reveal having an STI prior to sexual intercourse, research to-date suggests

A review of research suggests that only around half of individuals feel comfortable disclosing their STI diagnosis to a partner before engaging in sexual activity. Comprehensive sex education is needed to prevent the spread of infections and support individuals with diagnosed STIs.

SourceTaylor & Francis Group·JournalThe Journal of Sex Research·TypeLiterature review·DateJun 6, 2024

The molecular profile of Rheumatoid Arthritis patients at increased cardiovascular risk is identified

Researchers have established a molecular profile of Rheumatoid Arthritis patients who are at increased risk of cardiovascular events. The study analyzed blood serum samples from over 300 patients and identified three groups with similar patterns, revealing that one group is more likely to develop cardiovascular diseases.

SourceUniversity of Córdoba·JournalBiomedicine & Pharmacotherapy·DateJun 6, 2024