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Science News Archive March 2024 - Page 30


Page 30 of 42

JWST reveals a massive and ancient galaxy that challenges our models of the young Universe

Astronomers have made unprecedentedly detailed observations of an early galaxy merger using the James Webb Space Telescope (JWST). The findings suggest that stars developed much faster and more efficiently than expected, contradicting current models of galaxy formation.

SourceARC Centre of Excellence for All Sky Astrophysics in 3D (ASTRO 3D)·JournalNature Astronomy·TypeObservational study·DateMar 12, 2024

More than flying cars

eVTOL batteries require varying amounts of power for flight stages such as climbing, hovering and descent. Researchers developed new energy-dense materials and tested them against the current state-of-the-art version, showing improved performance.

SourceDOE/Oak Ridge National Laboratory·JournalACS Energy Letters·TypeExperimental study·DateMar 12, 2024

Research finds a college degree remains a sound investment despite rising tuition

The study found that earning a college degree still yields strong economic returns, with median rates of return ranging from 8% to 13%. The analysis considered various factors, including college majors and demographics. The findings suggest that selecting high-return majors is a sound financial decision.

SourceAmerican Educational Research Association·JournalAmerican Educational Research Journal·DateMar 12, 2024

Turning “drug” into “phosphor”— tailoring raloxifene into single-component molecular crystals enjoying multilevel stimuli-responsive room-temperature phosphorescence

Researchers designed and synthesized raloxifene analogues, exhibiting dual-emission properties with blue fluorescence and orange phosphorescence. The crystals' RTP behavior is influenced by packing modes, allowing for multilevel stimuli-responsiveness to mechanical force, solvent vapor, and heat.

SourceScience China Press·JournalScience Bulletin·DateMar 12, 2024

Exploring arctic plants and lichens: An important conservation baseline for Nunavut’s newest and largest territorial park

A team of scientists has discovered over 1,000 new plant and lichen species in Agguttinni Territorial Park, including rare species found nowhere else in Canada. The comprehensive checklist provides valuable information for park managers and botanists, aiding in the conservation and management of the protected area.

SourcePensoft Publishers·JournalCheck List·DateMar 12, 2024

Study reveals key mechanisms of rare form of epilepsy

A study identifies a genetic mutation underlying KCNQ2 encephalopathy, a rare and devastating form of epilepsy. The research reveals key mechanisms by which the disorder manifests in patients, including suppression of normal gene function and altered protein distribution.

SourceeLife·JournaleLife·DateMar 12, 2024

Does worsening metabolic syndrome increase the risk of developing cancer?

A new study published in CANCER reveals that individuals with worsening metabolic syndrome are at a higher risk of developing various types of cancer. The study followed 44,115 adults in China and found that those with an elevated-increasing pattern of metabolic syndrome scores had a significantly higher risk of developing multiple typ...

SourceWiley·JournalCancer·DateMar 11, 2024

Serum iron overload activates the SMAD pathway and hepcidin expression of hepatocytes via SMURF1

Researchers investigated the molecular mechanism of serum iron overload-induced BMP/SMAD pathway and hepcidin expression. SMURF1, a master regulatory function, mediates Holo-Tf-induced SMAD1/5 activation and hepcidin expression. The inhibition of SMURF1 may represent a therapeutic strategy for iron overload-related diseases.

SourceXia & He Publishing Inc.·JournalJournal of Clinical and Translational Hepatology·DateMar 11, 2024

Synergistic proton and oxygen-ion transport in fluorite oxide-ion conductor

Scientists have successfully developed a new structure family of oxide proton conductors as an alternative solid oxide fuel cell operated at low temperature. They achieved remarkable proton conductivity of 0.158 S cm−1 at 500°C by surficially transporting protons along oxide-ion conductor GDC particles.

SourceBeijing Institute of Technology Press Co., Ltd·JournalEnergy Material Advances·TypeExperimental study·DateMar 11, 2024

Permitless open carry laws may lead to more firearm-related suicides

A study published by the American College of Surgeons found that permitless open carry laws in states without such restrictions had a significantly higher rate of firearm-related deaths and total suicides. The researchers suggested that the ease of access to firearms under these laws may be responsible for the increase in suicide rates.

SourceAmerican College of Surgeons·JournalJournal of the American College of Surgeons·DateMar 11, 2024

Emergency room culture may deter medical students from selecting specialty

A new UCLA Health study found that women and individuals who don't fit traditional norms in the emergency room environment are underrepresented due to the challenging cultural dynamics. Most medical students who pursued emergency medicine despite this hurdle indicated they needed mentorship, representation, and exposure to the specialty.

SourceUniversity of California - Los Angeles Health Sciences·JournalAcademic Emergency Medicine·TypeSurvey·DateMar 11, 2024

A simple and robust method to add functional molecules to peptides

Researchers from Tohoku University developed a unique chemical reaction to attach two distinct functional molecules to the N-terminus of peptides with a glycine amino acid, achieving site-selective modification and stable carbon-carbon bonds. The method shows potential for labeling diverse peptides and larger proteins for purification,...

SourceTohoku University·JournalAngewandte Chemie International Edition·DateMar 11, 2024

Analysis reveals long-term impact of calcium and vitamin D supplements on health in postmenopausal women

A 20-year analysis found that calcium and vitamin D supplements reduced cancer mortality by 7%, but increased cardiovascular disease mortality by 6% in postmenopausal women. The study suggested that cancer incidence depends on pre-supplementation status, while CVD mortality is higher among supplement users.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeNews article·DateMar 11, 2024

Giving particle detectors a boost

Scientists at Argonne National Laboratory have developed a nanocryotron, a prototype for an on-off switch that can amplify weak electrical signals from tiny particles in collider experiments. The device could help facilitate the operation of new particle colliders and improve the accuracy of observations.

SourceDOE/Argonne National Laboratory·JournalApplied Physics Letters·DateMar 11, 2024

Study: Predicting steps in a random process

Physicists develop new method to efficiently determine all possible first-passage times and their probabilities, capturing randomness of both walker and environment. This approach builds on existing ideas and could improve predictive analyses in fields such as biology, migration systems, and financial markets.

SourceSanta Fe Institute·JournalPhysical Review E·DateMar 11, 2024

Flexible artificial intelligence optoelectronic sensors towards health monitoring

Researchers from Tokyo University of Science developed a flexible paper-based sensor that operates like the human brain, enabling low-power and efficient health monitoring. The device can distinguish 4-bit input optical pulses and generate currents in response to time-series optical input, with rapid response times.

SourceTokyo University of Science·JournalAdvanced Electronic Materials·TypeExperimental study·DateMar 11, 2024

New study finds female entrepreneurs do better with guidance from female mentors

A new study found that female entrepreneurs who receive guidance from female mentors experience significant improvements in performance, including a 32% sales increase. The study suggests that female-to-female mentorship dynamics yield more positive and supportive engagement, leading to better outcomes for female entrepreneurs.

SourceInstitute for Operations Research and the Management Sciences·JournalMarketing Science·TypeCase study·DateMar 11, 2024