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Science News Archive 2024 - Page 276


Page 276 of 484

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