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Science News Archive March 2023 - Page 30


Page 30 of 44

Northern and southern resident orcas hunt differently, which may help explain the decline of southern orcas

A new study reveals that northern and southern resident orcas differ in their hunting behaviors, with males catching more salmon per hour than females. Southern resident males outperform females by 152%, highlighting a distinct pattern of foraging that may contribute to the population decline.

SourceUniversity of Washington·JournalBehavioral Ecology·TypeObservational study·DateMar 10, 2023

Wayne State researcher publishes new research to bring Brillouin microscopy closer to widespread use in diagnostic medicine

Researchers have improved Brillouin microscopy to acquire mechanical images of cells and tissues at speeds 50-100 times faster than existing methods. This innovation enables the investigation of cell behaviors in real-time, with potential applications in cancer diagnosis and embryonic tissue development.

SourceWayne State University - Office of the Vice President for Research·JournalNature Methods·TypeImaging analysis·DateMar 10, 2023

Meta-analysis shows association between autism in children and cardiometabolic diseases

A meta-analysis of 34 studies found a significant association between autism spectrum disorder (ASD) and increased risks of developing diabetes, dyslipidemia, and heart disease. Children with ASD were more likely to develop these metabolic complications, prompting clinicians to monitor them closely.

SourceTexas Tech University Health Sciences Center·JournalJAMA Pediatrics·TypeMeta-analysis·DateMar 10, 2023

Cause of leukemia in trisomy 21

Children with Down syndrome are highly vulnerable to developing aggressive leukaemia due to a defect in the RUNX1 gene, which regulates blood cell formation. Researchers have identified a specific variant of the gene that promotes leukaemia development and discovered potential therapeutic approaches to correct this malfunction.

SourceGoethe University Frankfurt·JournalBlood·TypeExperimental study·DateMar 10, 2023

Some stirring required: fluid mixing enables scalable manufacturing of soft polymer structures

The new technique allows for the production of a dozen different soft polymer material morphologies, including ribbons, nanoscale sheets, rods, and branched particles. By precisely controlling three sets of parameters during manufacturing, researchers can fine-tune the morphology of polymeric materials at the micro- and nano-scale.

SourceNorth Carolina State University·JournalAdvanced Materials·TypeExperimental study·DateMar 10, 2023

Earth Map works in tandem with its users to achieve a more conscious, climate-aware and environmental-friendly world

Earth Map provides users with intuitive remote sensing data and enables a broader range of actors to take an active role in monitoring lands impacted by human activities. The tool aims to inform decision-makers about the current state of climate and resource management, driving meaningful policy changes and sustainable livelihoods.

SourceJournal of Remote Sensing·JournalNational Remote Sensing Bulletin·TypeCase study·DateMar 10, 2023

Remarkable squirting mussels captured on film

Cambridge researchers observe Unio crassus mussels squirting water jets up to a meter away from the riverbed to increase the chances of their larvae attaching to specific host fishes. This behavior has never been seen in any other mussel species and may be crucial for the endangered species' survival.

SourceUniversity of Cambridge·JournalEcology·TypeObservational study·DateMar 10, 2023

How to assemble a complete jaw

A USC-led team of scientists identified the key gene Nr5a2, essential for opening up genome regions that enable neural crest cells to form tendons and salivary glands. Zebrafish and mice lacking this gene exhibited skeletal and tendon defects, as well as failed salivary gland development.

SourceKeck School of Medicine of USC·JournalDevelopmental Cell·TypeExperimental study·DateMar 10, 2023

MSU-led international research network welcomes new Ibero-American partner to advance nuclear astrophysics

The International Research Network for Nuclear Astrophysics (IReNA) has partnered with the Ibero-American Network of Nuclear Astrophysics (IANNA) to enhance knowledge in nuclear astrophysics. The new collaboration will enable researchers from both networks to access cutting-edge technology and combine their expertise, resources, and ac...

SourceMichigan State University Facility for Rare Isotope Beams·TypeComputational simulation/modeling·DateMar 10, 2023

Immune cells have a backup mechanism

Researchers at University of Bonn discover a backup mechanism in immune cells that ensures efficient antiviral responses despite TBK1 enzyme mutations or complete loss. This mechanism relies on the stability of IKKepsilon protein, which compensates for TBK1 deficiency.

SourceUniversity of Bonn·JournalFrontiers in Immunology·TypeExperimental study·DateMar 10, 2023

HKU Marine Scientist contributes to research assessing the potential risks of ocean-based climate intervention technologies on deep-sea ecosystems

A research team led by Dr Lisa Levin assessed the potential risks of OBCIs on deep-sea ecosystems, raising substantial concern about their impacts on biodiversity and biogeochemistry. The study highlights the need for an integrated research framework to carefully consider the cost and benefits of each intervention.

SourceThe University of Hong Kong·JournalScience·TypeExperimental study·DateMar 10, 2023

Researchers find access to new fluorescent materials

Researchers have found a way to increase the efficiency of fluorescence in phosphole-based compounds by modifying them with sulfonyl isocyanates. This modification method has been shown to significantly enhance the optical properties of these substances, making them suitable for use as efficient dyes or markers.

SourceUniversität Leipzig·JournalChemical Science·TypeExperimental study·DateMar 10, 2023

Hotter than infinity – light pulses can behave like an exotic gas

Researchers at the Universities of Jena and Central Florida have created a photon gas that exhibits behavior similar to a conventional gas, with particles moving at different speeds but maintaining a mean velocity defined by temperature. This phenomenon, known as negative temperature, can be cooled or heated, allowing for the creation ...

SourceFriedrich-Schiller-Universitaet Jena·JournalScience·TypeExperimental study·DateMar 10, 2023

Shape memory for nano-sized objects

Researchers at ETH Zurich have successfully applied the shape-memory effect to nano-sized objects, overcomes the limitation of objects needing to be larger than 50 nanometers. The material ferroic oxides showed a free-standing nanoscale structure made of ferroic oxides that are highly elastic and resilient.

SourceETH Zurich·JournalNature Communications·DateMar 9, 2023

Complex learned social behavior discovered in bee’s ‘waggle dance’

Researchers at the University of California - San Diego found that honey bees use a 'waggle dance' to communicate the location of food sources, and that this behavior is improved by learning and culturally transmitted. The study demonstrates the importance of early social signal learning in non-human spatial referential communication.

SourceUniversity of California - San Diego·JournalScience·TypeExperimental study·DateMar 9, 2023

Electrocatalysis under the atomic force microscope

Researchers have developed a new approach to correlative atomic force microscopy, allowing for the simultaneous measurement of electrocatalyst properties. This study focuses on nanostructured copper-gold electrocatalysts and provides insights into catalyst-electrolyte interfaces, enabling targeted optimization.

SourceHelmholtz-Zentrum Berlin für Materialien und Energie·JournalJournal of the American Chemical Society·TypeExperimental study·DateMar 9, 2023

UK study reveals ethnic differences in obstetric anesthesia care

A UK study found that Black Caribbean-British women are 58% more likely than white women to receive general anaesthesia during elective caesarean births, while Bangladeshi-British and Pakistani-British women are less likely to have epidurals. The study also reveals differences in assisted deliveries and emergency caesarean births betwe...

SourceAAGBI·JournalAnaesthesia·DateMar 9, 2023