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Science News Archive November 2023 - Page 33


Page 33 of 40

Window to the past: New microfossils suggest earlier rise in complex life

A team of scientists discovered microfossils in Western Australia that hint at a surge in complex life around the Great Oxidation Event, roughly 2.4 billion years ago. The findings provide a rare window into the planet's biosphere during this time, suggesting a burst of life and diversity.

SourcePenn State·JournalGeobiology·TypeImaging analysis·DateNov 7, 2023
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

An ammonia trail to exoplanets

A team of researchers has detected ammonia isotopologues in the atmosphere of a cold brown dwarf, providing new clues to understanding gas giant formation. The ratio of two isotopologues reveals that the exoplanet formed through gravitational collapse, challenging traditional theories.

SourceETH Zurich·JournalNature·DateNov 7, 2023

Study highlights optimal timing for assessing orthostatic hypotension in older adults and its impact on fall risk

A new study found that orthostatic hypotension assessments conducted after 4-6 minutes of standing are more informative for predicting fall risk in older adults. This timely assessment can help clinicians identify those at highest risk and institute appropriate interventions to reduce falls.

SourceHebrew SeniorLife Hinda and Arthur Marcus Institute for Aging Research·JournalJournal of the American Geriatrics Society·DateNov 6, 2023

Firearm injuries among children and adolescents lead to huge mental and behavioral health consequences

A study by Massachusetts General Hospital researchers found that child and adolescent survivors of firearm injuries experience significant increases in pain disorders, psychiatric disorders, and substance use disorders. Families of victims also face substantial mental health effects, including increased psychiatric disorders and health...

SourceMassachusetts General Hospital·JournalHealth Affairs·DateNov 6, 2023

Success of Wolbachia-infected mosquitoes in fighting dengue may be underestimated

Researchers analyzed a World Mosquito Program trial and found that excluding transmission dynamics likely underestimates the impact of Wolbachia-infected mosquitoes. The study suggests that true efficacy may be higher than initially reported, with potential reductions in dengue fever cases ranging from 77% to 94-97%.

SourceUniversity of Notre Dame·JournalBMJ Global Health·TypeComputational simulation/modeling·DateNov 6, 2023
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Frogs were Florida’s first-known vertebrates from the Caribbean

Frogs from the genus Eleutherodactylus are geologically the oldest Caribbean vertebrates to be found in Florida. They arrived in North America much earlier than previously thought, with evidence suggesting they reached the peninsula through overwater dispersal on flotsam or other buoyant debris.

SourceFlorida Museum of Natural History·JournalZoological Journal of the Linnean Society·DateNov 6, 2023
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Viano receives NSF CAREER Award

Samantha Viano, an Assistant Professor at George Mason University, has received a $1,044,599 NSF CAREER Award to investigate school policies and access to high school STEM credit recovery. The project aims to develop a theoretical framework for policymakers to improve outcomes for minoritized students in online credit recovery programs.

SourceGeorge Mason University·DateNov 6, 2023
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Future therapies for managing inflammatory bowel disease

Recent advances in IBD pathophysiology and treatment development have led to the emergence of new therapies for moderate-to-severe IBD. These novel medications show promising efficacy results for patients who have previously failed to respond to multiple drugs, offering a glimmer of hope for improved management.

SourceFirst Hospital of Jilin University·JournaleGastroenterology·DateNov 6, 2023

Uptake of methylmercury by phytoplankton is controlled by thiols

A new study reveals that methylmercury uptake in phytoplankton is influenced by the presence of thiols in water. Thiols bind mercury strongly, limiting its availability to organisms. This process can result in dramatic enrichment of methylmercury levels in aquatic environments.

SourceUmea University·JournalNature Communications·TypeCommentary/editorial·DateNov 6, 2023
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Improving the efficacy of cancer immunotherapy with modified CAR-T cells

Researchers at the University of Freiburg have developed modified CAR-T cells that prevent exhaustion and significantly enhance therapy effectiveness in a preclinical animal model. The new approach uses the delta chain signaling subunit instead of the zeta chain, which triggers a more balanced immune response.

SourceUniversity of Freiburg·JournalNature Immunology·DateNov 6, 2023

Doctors get tips on how to make healthcare greener

A new series by The BMJ offers actionable advice for doctors to make healthcare systems more sustainable. Practical actions include reducing nitrous oxide waste, using reusable vaginal speculums for cervical screening, and prescribing tablets over intravenous drugs.

SourceBMJ Group·JournalThe BMJ·TypeNews article·DateNov 6, 2023

Brain implant may enable communication from thoughts alone

A new speech prosthetic developed by Duke neuroscientists and engineers can translate brain signals into spoken words, improving communication for people with neurological disorders. The device achieved an accuracy rate of 40% in predicting intended speech from 90 seconds of brain activity.

SourceDuke University·JournalNature Communications·TypeExperimental study·DateNov 6, 2023

Higher risk of 17 cancers after high BMI in late teens

Men who are overweight or obese at age 18 have a higher risk of developing 17 different cancers later in life. Higher BMI is also associated with an increased risk of mortality after cancer diagnosis for certain types of cancer.

SourceUniversity of Gothenburg·JournalObesity·TypeObservational study·DateNov 6, 2023
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

New study sheds light on Adélie penguins' reliance on declining sea ice during molt

Researchers have discovered a potential bottleneck in Adélie penguins' annual cycle, which could be exacerbated as the climate continues to change. The study found that seasonal Antarctic sea ice plays a crucial role in the penguins' molting periods, with low sea ice concentration signaling extended gaps in post-breeding diving activity.

SourcePoint Blue Conservation Science·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateNov 6, 2023

The health and economic toll of gun violence in youth

A new study reveals that gunshot injuries among youth lead to significant increases in psychiatric disorders and healthcare spending. Family members of survivors experience long-lasting trauma effects, including a sharp increase in fathers' mental health visits after the loss of a child.

SourceHarvard Medical School·JournalHealth Affairs·TypeData/statistical analysis·DateNov 6, 2023
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Fossils tell tale of last primate to inhabit North America before humans

Paleontologists uncover the story of Ekgmowechashala, a mysterious primate that defied extinction, through fossil teeth and jaws found in Nebraska and China. The discovery resolves the debate over its classification and origin, revealing it was an immigrant species that evolved in Asia and migrated to North America via Beringia.

SourceUniversity of Kansas·JournalJournal of Human Evolution·DateNov 6, 2023

Shorter white blood cell telomeres linked to higher dementia risk

Researchers found that shorter white blood cell telomeres are associated with a higher risk of dementia, including Alzheimer's disease and vascular dementia. The study also reveals linear associations between telomere length and brain structure volume, highlighting telomere length as a potential biomarker of brain health.

SourceShanghai Jiao Tong University Journal Center·JournalGeneral Psychiatry·TypeRandomized controlled/clinical trial·DateNov 6, 2023

New algae species rewrites understanding of reef systems

Researchers identified four new algae species, challenging previous taxonomic assumptions, with far-reaching implications for coral reef ecosystem management. The discovery highlights the importance of continued research and conservation efforts to protect this unique biodiversity.

SourceGriffith University·JournalJournal of Phycology·DateNov 6, 2023

New study finds electric vehicles are driven less than gas cars

A large study of used cars and SUVs found battery electric vehicles driven almost 4,500 fewer miles than gas cars annually. This challenges current assumptions about emissions savings from EVs, highlighting the need for better understanding of driver behavior to accurately predict emissions reductions.

SourceGeorge Washington University·JournalJoule·DateNov 6, 2023
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Black women teaching science find formula for incorporating anti-racist practices, study finds

A new study by NYU researchers found that Black women teaching science are finding innovative ways to combine traditional curricula with lessons on race, gender, and class inequities. They make cultural connections to science, encourage critical thinking, and provide historical contexts to help students understand the impact of systemi...

SourceNew York University·JournalJournal of Research in Science Teaching·TypeObservational study·DateNov 6, 2023

First wireless map of worm’s nervous system revealed

A team of scientists has created the first comprehensive map of a worm's nervous system, showing how neurons communicate wirelessly through neuropeptides. The study reveals complex networks with distinct hubs and connections that transcend traditional synaptic pathways.

SourceUK Research and Innovation·JournalNeuron·DateNov 6, 2023

Threatened sharks and rays caught off Cyprus

Researchers found 22 globally threatened elasmobranch species in Cyprus' coastal waters, with simple measures like limiting net lengths crucial for sustainability. Local authorities have banned trading of 15 species, and conservation efforts are underway to protect the marine ecosystem.

SourceUniversity of Exeter·JournalFrontiers in Marine Science·TypeObservational study·DateNov 6, 2023

Model suggests that mammalian sperm cells have two modes of swimming

A new mathematical model suggests that mammalian sperm cells exhibit two distinct swimming modes, which may be linked to fertilization. The model captures the interactions between motor kinetics and flagella deformations, revealing a second mode with stronger wave-shaped beating.

SourceUniversity of California - San Diego·JournalPhysical Review Fluids·TypeComputational simulation/modeling·DateNov 6, 2023
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Chicago community violence intervention program shown to reduce gun violence

A study led by Northwestern University found that a Chicago-based community violence intervention program reduced gun violence involvement by over 73% among participants. The program's alumni showed the best outcomes, with a significant decrease in assaults, robberies, and other gun-related violence.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateNov 6, 2023

Scientists use SERS technology to accurately monitor single-molecule diffusion behavior

Researchers successfully monitored the diffusion behavior of a single molecule using SERS technology, enabling real-time analysis. The study found that crystalline violet molecules can be confined in sub-nanometer space, providing insights into molecular interactions and chemical reactions.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalThe Journal of Physical Chemistry Letters·DateNov 6, 2023

A cutting-edge approach to tackling pollution in Houston and beyond

A University of Houston research team integrated machine learning with SHAP analysis to identify the city's air pollution sources more accurately. The study found that the oil and gas industry had the highest impact on emissions, while shortwave radiation and relative humidity were key influencing factors for overall ozone concentration.

SourceUniversity of Houston·JournalEnvironmental Pollution·DateNov 6, 2023

Gas-rich baby galaxies set the early Universe alight

Researchers found almost 90% of early universe galaxies had glowing gas, triggering intense star formation. The James Webb Space Telescope provided unprecedented clarity to study these infant galaxies, revealing their role in shaping the Universe.

SourceARC Centre of Excellence for All Sky Astrophysics in 3D (ASTRO 3D)·JournalThe Astrophysical Journal·TypeObservational study·DateNov 6, 2023

Parkinson's: New hope when treatment options seem exhausted

Researchers found that changing treatment can lead to significant improvement in mobility and quality of life for patients with advanced Parkinson's disease. A nationwide registry is planned to develop scientifically sound guidelines for combination therapies.

SourceTechnical University of Munich (TUM)·JournalNeurology·TypeData/statistical analysis·DateNov 6, 2023
Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Decarbonizing light-duty transportation in the US: U-M study reveals strategies to achieve goal

A University of Michigan study found that meeting the 50% electric vehicle sales target by 2030 is possible, but not just through increased EV sales. The study suggests implementing additional strategies such as reducing vehicle production emissions and promoting walkable, bikeable cities to accelerate emission reduction. By 2035, a 45...

SourceUniversity of Michigan·JournalNature Communications·DateNov 6, 2023

Study shines light on the health of American moms in the year after birth

A recent study by Columbia University's Mailman School of Public Health found that approximately 1 in 5 mothers delayed or forgoed needed care in the postpartum year. Medicaid beneficiaries reported lower health care use and higher social needs, such as food insecurity and intimate partner violence.

SourceColumbia University's Mailman School of Public Health·JournalHealth Affairs·DateNov 6, 2023

Antibiotic prescribing in outpatient telemedicine

A new report highlights the need for improved antibiotic stewardship in outpatient telemedicine settings, where up to 28% of antibiotics are prescribed unnecessarily. The study's findings suggest that incorporating CDC core elements can optimize antibiotic use and reduce adverse events.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalTelemedicine and e-Health·TypeCase study·DateNov 6, 2023
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Two fins are better than one: Fish synchronize tail fins to save energy

Researchers from Tohoku University developed a model that simulates fish tail fin motion and reveals the underlying mechanisms behind synchronized swimming. The study found that synchronizing fin movements reduces energy dissipation, but the optimal timing may not always lead to conservation of energy.

SourceTohoku University·JournalPhysics of Fluids·DateNov 6, 2023

European wildcats avoided introduced domestic cats for 2,000 years

Research reveals that European wildcats and domestic cats generally avoided mating for 2,000 years after domestic cat introduction. However, rates of interbreeding rose rapidly around 50 years ago in Scotland, likely due to dwindling wildcat populations and habitat loss.

SourceUniversity of Oxford·JournalCurrent Biology·TypeObservational study·DateNov 6, 2023

Location of strong sense of discomfort in brain found

A new neural circuit has been discovered in the brain that produces a strong sense of discomfort when activated. The study found that the subthalamic nucleus, which controls voluntary movements, also plays a role in the development of depression.

SourceUppsala University·JournalCell Reports·TypeExperimental study·DateNov 6, 2023
Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Want the secret to less painful belly flops? These researchers have the answer.

A Brown University research team investigated belly flop mechanics, finding that flexible impactors can sometimes increase the maximum impact force on the body, contradicting conventional thinking. The study's findings have implications for naval and marine engineering applications.

SourceBrown University·JournalJournal of Fluid Mechanics·TypeExperimental study·DateNov 6, 2023

High-performance surface enhanced raman scattering substrate proposed based on 2H-TaS2 and single-atom-layer gold clusters

Researchers have proposed a novel SERS substrate by intercalating single-atom-layer gold clusters into bilayer 2H-TaS2, achieving two orders of magnitude enhancement. The team found that the d-orbital electrons on the Au surface couple with neighboring 2H-TaS2, creating a strong local electromagnetic field.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·JournalThe Journal of Physical Chemistry Letters·DateNov 6, 2023
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.