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Science News Archive October 2024 - Page 9


Page 9 of 44

Green growth: 30% of regions worldwide achieve economic growth while reducing carbon emissions

Researchers found that 30% of subnational regions have fully decoupled carbon emissions from economic growth. Decoupling is driven by climate action and has been successful in Europe, but less than half of regions will meet net-zero targets by 2050.

SourcePotsdam Institute for Climate Impact Research (PIK)·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateOct 28, 2024

Intrinsic factors of the CAR-T cells may play a major role on its clinical success

A new study found that CAR-T cell therapy success is predicted by three key features: the CD4/CD8 ratio in infusion products, the presence of T-cell exhaustion signals before infusion, and the expansion of T-cells during therapy. These factors can help improve treatment outcomes.

SourceJosep Carreras Leukaemia Research Institute·JournalCell Reports Medicine·TypeComputational simulation/modeling·DateOct 28, 2024

New study offers refined estimates of permafrost loss in High Mountain Asia under future warming

A new study published in Geophysical Research Letters refines permafrost loss estimates for High Mountain Asia (HMA) under future warming. By adjusting climate sensitivity values, the researchers found that HMA permafrost area could shrink by 37% to 64% under mid- and low-emission scenarios by 2081-2100.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalGeophysical Research Letters·DateOct 28, 2024

A new chemistry for CRISPR

Researchers have discovered a new type of CRISPR chemistry that floods infected cells with toxic molecules and shuts down activity, preventing viruses from spreading. The discovery sheds light on the complex mechanisms of CRISPR systems and their potential applications as diagnostic tools for infection.

SourceRockefeller University·JournalCell·DateOct 28, 2024

Seeing a black hole's jet in a new light

A team of researchers has discovered a new pattern in the high-energy jet of particles blasted by the supermassive black hole at the center of galaxy Centaurus A. The study found that the speed of one knot in the X-ray jet was at least 94% the speed of light, significantly faster than previously measured speeds using radio observations.

SourceUniversity of Michigan·JournalThe Astrophysical Journal·DateOct 28, 2024

A landscape of consciousness

Kuhn's 'landscape of consciousness' explores diverse theories of consciousness, including materialism, non-reductive physicalism, and quantum theories. The taxonomy is designed to examine their impact on ultimate questions like meaning, purpose, and value.

SourceFoundational Questions Institute, FQXi·JournalProgress in Biophysics and Molecular Biology·TypeLiterature review·DateOct 28, 2024

Human papillomavirus type 16 based L1, L2, E6, and E7 peptide microspheres induce encapsulated peptide mixture specific cytotoxic T lymphocytes and tumor regression in a murine model of cervical cancer

Researchers developed HPV16 peptide microspheres to induce specific cytotoxic T lymphocytes, leading to tumor regression in cervical cancer models. The approach combines peptide-based vaccinations with microsphere technology to enhance immune responses and eliminate tumor cells.

SourceXia & He Publishing Inc.·JournalCancer Screening and Prevention·DateOct 28, 2024

Impact of gradient microstructure on strain hardening via activation of multiple deformation mechanisms in CoCrNi medium entropy alloy

Researchers investigated the impact of gradient microstructure on strain hardening in CoCrNi MEA, revealing that fault energy characteristics trigger nanoscale deformation twins and phase transformations to enhance strain hardening ability. Microscopic structures like nanotwin gradients also improve mechanical properties.

SourceSongshan Lake Materials Laboratory·JournalMaterials Futures·TypeExperimental study·DateOct 28, 2024

Molecular data storage

A new method allows direct access to specific bits in synthetic polymer data storage, enabling random access. The researchers encoded a sequence of ones and zeroes into a polymer chain, demonstrating the feasibility of storing and retrieving large amounts of data efficiently.

SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateOct 28, 2024

Global fleet of undersea robots reveal the phytoplankton hidden beneath the ocean's surface

A global network of Biogeochemical (BGC)-Argo floats provides depth-resolved monitoring of Earth's phytoplankton biomass, revealing 50% of biomass lies beyond satellite detection. The study also shows surface Chla does not accurately predict peak annual biomass timing in two-thirds of the ocean.

SourceDalhousie University·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateOct 28, 2024

Magnetic field applied to both sides of brain shows rapid improvement for depression

A magnetic field applied to both sides of the brain has been shown to rapidly treat depression in patients who have not responded to standard treatments. The therapy, known as repetitive transcranial magnetic stimulation (TMS), targets two areas of the brain implicated in depression and corrects imbalances in key processes.

SourceUniversity of Cambridge·JournalPsychological Medicine·TypeRandomized controlled/clinical trial·DateOct 28, 2024

Inhaled reliever therapies for asthma

A network meta-analysis of patients with asthma found that inhaled corticosteroid combinations with formoterol and short-acting β agonists significantly reduced asthma exacerbations. These therapies also improved asthma control compared to short-acting β agonist monotherapy.

SourceJAMA Network·JournalJAMA·DateOct 28, 2024

Climate, dead zones and fish: Solving a 'wicked problem' in Lake Erie and beyond

A new study suggests that regulations designed to protect Lake Erie's water quality may be too restrictive for some species of fish, but still beneficial until the middle of this century. Researchers recommend a systems-level approach to managing ecosystems, considering tradeoffs between fisheries and water quality objectives.

SourceUniversity of Michigan·JournalProceedings of the National Academy of Sciences·DateOct 28, 2024

AI in healthcare: New research shows promise and limitations of physicians working with GPT-4 for decision making

A study of 50 U.S.-licensed physicians found that GPT-4 did not significantly improve clinical reasoning compared to conventional resources. The integration of GPT-4 as a diagnostic aid alongside clinicians showed promising results but required further exploration to understand its potential benefits.

SourceUniversity of Minnesota Medical School·JournalJAMA Network Open·TypeRandomized controlled/clinical trial·DateOct 28, 2024

Lab-grown pork gets support from sorghum grain

Researchers have created a prototype cultured pork using kafirin proteins isolated from red sorghum grain, expanding the options for lab-grown meats. The resulting product contains more protein and saturated fat but fewer mono- and polyunsaturated fats compared to raw lean pork.

SourceAmerican Chemical Society·JournalJournal of Agricultural and Food Chemistry·DateOct 28, 2024

Climate-driven environmental filtering determines hump-shaped elevation pattern of seed plants beta diversity in central Himalayas

Researchers investigated elevational patterns of seed plant beta diversity and its turnover and nestedness components in the Gyirong Valley. They found a hump-shaped pattern driven by climate variables, with taxonomic and phylogenetic beta diversity being lower than expected. Conservation efforts should prioritize elevations with diffe...

SourceKeAi Communications Co., Ltd.·JournalPlant Diversity·TypeObservational study·DateOct 28, 2024

Study finds influential textbooks labeled American actions as imperialist, contradicting American exceptionalism

A new study from the University of Kansas found that influential history textbooks in Texas high schools have long argued that America acted as an empire, particularly in the late 19th and early 20th centuries. The study contradicts the concept of American exceptionalism, which posits that the US is exceptional throughout its history.

SourceUniversity of Kansas·JournalPaedagogica Historica·TypeLiterature review·DateOct 28, 2024

Researchers’ new outreach strategy succeeds, sets blueprint for detecting invasive species in Florida

A targeted outreach initiative in Palm Beach County led to an increase in reported sightings of invasive reptiles, including Nile monitors and Argentine black-and-white tegus. The effort engaged over 112,000 people and resulted in 55 reported sightings, highlighting the effectiveness of community involvement in detecting invasive species.

SourceUniversity of Florida·JournalScientific Reports·DateOct 28, 2024

Finding a new behavioral adaptation in fruit flies

A team of scientists at the University of Pennsylvania discovered a novel courtship behavior in female Drosophila santomea fruit flies, where they spread their wings to signal receptivity. This finding suggests that neural circuits can be reused and adapted to drive new behaviors, offering insights into the evolution of social communic...

SourceUniversity of Pennsylvania·JournalNature Communications·TypeExperimental study·DateOct 28, 2024

Evidence mounts for dark energy from black holes

Researchers found evidence that black holes contain dark energy, which could explain its mysterious nature. The Dark Energy Spectroscopic Instrument provided data showing a correlation between the growth of black holes and the increase in dark energy density over time.

SourceUniversity of Michigan·JournalJournal of Cosmology and Astroparticle Physics·DateOct 28, 2024

AI algorithm accurately detects heart disease in dogs

A machine learning algorithm developed by University of Cambridge researchers can detect and grade heart murmurs in dogs with high accuracy, similar to expert cardiologists. The technology has the potential to empower primary care veterinarians to provide early detection and treatment, improving quality of life for dogs.

SourceUniversity of Cambridge·JournalJournal of Veterinary Internal Medicine·DateOct 28, 2024