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Science News Archive April 2024 - Page 22


Page 22 of 41

Twisted pollen tubes induce infertility

Researchers at ETH Zurich discovered a previously unrecognised mechanism for reduced fertility in polyploids, where twisted pollen tubes fail to reach the egg cells. The study found two genes controlling pollen tube growth, which are highly conserved and could be applied to plant breeding.

SourceETH Zurich·JournalScience·DateApr 16, 2024

In-situ alloying of NiTiNb shape memory alloys by additive manufacturing

Scientists at Shandong University have created a novel approach to fabricate high-performance NiTiNb shape memory alloys using laser powder bed fusion. The in-situ alloying process yields good mechanical and functional properties, surpassing conventional casting methods. By integrating material synthesis and structure forming, research...

SourceInternational Journal of Extreme Manufacturing·JournalInternational Journal of Extreme Manufacturing·DateApr 16, 2024

Revolutionizing plant grafting: Unveiling the role of TOR signalling in enhancing graft success and crop vigor

A research study investigates the role of TOR signalling in regulating seedling vigor, graft junction healing, and shoot-to-root communications. The study highlights the potential for improving grafting techniques and understanding plant communication to impact agricultural productivity and sustainability.

SourceMaximum Academic Press·JournalVegetable Research·TypeExperimental study·DateApr 16, 2024

How AI improves physician and nurse collaboration

A new AI-based model at Stanford Hospital predicts patient decline and flags physicians and nurses, enhancing communication and intervention. The study saw a significant improvement in clinical outcomes, with a 10.4% decrease in deterioration events among high-risk patients.

SourceStanford Medicine·JournalJAMA Internal Medicine·TypeObservational study·DateApr 16, 2024

Small extracellular vesicles from young blood, one of the most potent rejuvenating factors, extend lifespan by 22.7% and restore whole-body physiological functions

Small extracellular vesicles from young blood have been shown to dramatically extend lifespan, rejuvenate whole-body physiology, and reverse age-related degenerative changes in mice. The study demonstrates that these vesicles stimulate the expression of PGC-1  through their miRNA cargoes, ultimately improving mitochondrial functions.

SourceNanjing University School of Life Sciences·JournalNature Aging·TypeExperimental study·DateApr 16, 2024

Scientists identify cell vulnerability ‘fingerprint’ related to Parkinson’s, Lewy body dementia

Researchers at Van Andel Institute have identified a gene expression pattern, akin to a disease-related fingerprint, in brain cells with Lewy bodies. This finding sheds light on the molecular changes that occur in these cells, which are key pathological hallmarks of Parkinson's disease and some dementias.

SourceVan Andel Research Institute·JournalNature Communications·TypeExperimental study·DateApr 16, 2024

Working arrangements for locum doctors pose significant patient safety challenges

Qualitative research finds that locum doctors face significant patient safety challenges due to unfamiliar work environments, lack of support, and inadequate governance arrangements. The study calls on NHS leaders to rethink their approaches to engaging and supporting locums, and for locums themselves to reflect on their experiences.

SourceBMJ Group·JournalBMJ Quality & Safety·TypeCommentary/editorial·DateApr 16, 2024

Novel therapeutic bispecific antibodies for B-cell lymphoma

Researchers developed novel therapeutic bispecific antibodies targeting IgM and B-cell surface antigens, which directly inhibited cell proliferation via cell-cycle arrest and apoptosis in vitro. These findings suggest that anti-IgM/B-cell surface antigen-binding specific antibodies are promising therapeutic agents for B-cell malignancies.

SourceImpact Journals LLC·JournalOncotarget·TypeExperimental study·DateApr 16, 2024

Evidence of a pan-tissue decline in stemness during human aging

Researchers found that ~60% of tissues exhibit a significant negative correlation between age and stemness score, indicating a pan-tissue decline in stemness. This study adds weight to the idea that stem cell deterioration contributes to human aging, with hematopoietic stem cells from older individuals showing higher stemness scores.

SourceImpact Journals LLC·JournalAging-US·TypeObservational study·DateApr 16, 2024

Researchers at the University of Granada demonstrate the positive effect of melatonin in the prevention of obesity

The study found that chronic administration of melatonin prevents obesity and reduces visceral obesity by around 3%. Melatonin also enhances weight loss when combined with cold water bathing. The researchers recommend incorporating melatonin, natural light exposure, and physical activity into daily routines to manage obesity.

SourceUniversity of Granada·JournalBiomedicine & Pharmacotherapy·TypeExperimental study·DateApr 16, 2024

CNIC scientists identify therapeutic targets for the prevention of heart injury linked to cancer treatment

Scientists at CNIC have identified mechanisms by which anthracyclines damage the hearts of cancer patients, leading to cardiac injury. The study suggests that a protein-enriched diet may prevent muscle atrophy caused by anthracycline chemotherapy.

SourceCentro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)·JournalJACC CardioOncology·TypeExperimental study·DateApr 16, 2024

New study shows corporate misconduct at home hurts sales overseas

A new study in the Global Strategy Journal shows that corporate misconduct, such as corruption and discrimination, can negatively impact foreign subsidiary performance. The research monitored 335 subsidiaries in 109 countries over nine years, finding that social irresponsibility hurts sales regardless of where the incident occurred.

SourceStrategic Management Society·JournalGlobal Strategy Journal·TypeData/statistical analysis·DateApr 15, 2024

Improved AI confidence measure for autonomous vehicles

Researchers at Bar-Ilan University developed a new AI confidence measure that distinguishes between high- and low-confidence decision making in deep learning architectures. This breakthrough enables the creation of safer and more reliable autonomous vehicles by prioritizing human intervention when confidence levels are lower.

SourceBar-Ilan University·JournalPhysica A Statistical Mechanics and its Applications·DateApr 15, 2024

How blue-green algae manipulate microorganisms

Cyanobacteria have been found to manipulate microorganisms to promote their own photosynthesis by regulating nitrogen and carbohydrate metabolism. This newly discovered gene, NirP1, plays a key role in this process, allowing cyanobacteria to export nitrite that stimulates the growth of beneficial microorganisms.

SourceUniversity of Freiburg·JournalNature Communications·DateApr 15, 2024

Scientists develop innovative maleic acid-treated bacterial cellulose gel enhancing bone repair

Scientists have developed a novel maleic acid-treated bacterial cellulose gel that significantly improves bone repair outcomes. The gel's enhanced biocompatibility and osteogenic gene expression promote cell proliferation and differentiation, paving the way for potential applications in tissue engineering.

SourceJournal of Bioresources and Bioproducts·JournalJournal of Bioresources and Bioproducts·TypeExperimental study·DateApr 15, 2024

AI to improve cataract surgery in the Global South

Researchers develop AI-assisted algorithm to analyze surgical videos of cataract surgeries in Global South, aiming to improve surgical outcomes and training. The algorithm can work with conventional image material and smartphone videos, addressing the need for resource-saving solutions in these countries.

SourceUniversitatsklinikum Bonn·JournalTranslational Vision Science & Technology·DateApr 15, 2024

Security vulnerability in browser interface allows computer access via graphics card

Researchers at Graz University of Technology discovered three side-channel attacks on WebGPU browser interface, allowing them to access a computer's cache memory and extract sensitive information. The attacks were fast enough to succeed during normal surfing behavior, highlighting the need for browsers to address GPU security and priva...

SourceGraz University of Technology·TypeComputational simulation/modeling·DateApr 15, 2024

From ashes to adversity: Lessons from South Australia's business recovery amidst bushfires and pandemic

Research by UniSA economists explores how small businesses in South Australia's Kangaroo Island and Barossa Valley regions adapted to disaster recovery, highlighting the importance of financial stability, online presence, and community support. The study found that a 'dynamic capabilities approach' is key to long-term recovery, and reg...

SourceUniversity of South Australia·JournalRegional Studies Regional Science·TypeCase study·DateApr 15, 2024

New colorful plastic films for versatile sensors and electronic displays

Scientists from Osaka University create borane molecules that exhibit red-shifted light emission upon binding to fluoride, enabling versatile materials for electronic display and chemical sensing applications. The researchers also achieve fine-tuning of the color of light emission by adjusting the quantity of added fluoride.

SourceOsaka University·JournalAngewandte Chemie International Edition·TypeExperimental study·DateApr 15, 2024

Unlocking the ‘chain of worms’

A team of scientists has created a single-cell atlas for the highly regenerative worm Pristina leidyi, revealing new insights into its regenerative abilities. The study characterizes all major annelid cell types and provides molecular signatures that could inform stem cell technologies and regenerative medicine.

SourceWashington University in St. Louis·JournalNature Communications·TypeExperimental study·DateApr 15, 2024

Multiple pollutants from crop and livestock production in the Yangtze River: status and challenges

The Yangtze River Basin faces severe water quality issues due to excessive fertilizer and pesticide use, as well as the inappropriate disposal of agricultural waste. The study highlights the need for balancing green agriculture with development to ensure food security and water quality.

SourceHigher Education Press·JournalFrontiers of Agricultural Science and Engineering·TypeExperimental study·DateApr 15, 2024

Epilepsy drug prevents brain tumors in mice with NF1

A study by researchers at Washington University School of Medicine has found that a drug used to treat epilepsy can prevent brain tumor formation and growth in mice with neurofibromatosis type 1 (NF1). The drug, lamotrigine, was shown to be effective at lower doses than those used for epilepsy, and its effects were lasting. The finding...

SourceWashU Medicine·JournalNeuro-Oncology·TypeExperimental study·DateApr 15, 2024

Stretchable quantum dot display

Researchers from the Institute for Basic Science created QLEDs using a ternary nanocomposite film that enhances carrier delivery to quantum dots, resulting in optimal device performance. The devices exhibit high brightness and low threshold voltage, with no damage when stretched up to 1.5 times.

SourceInstitute for Basic Science·JournalNature Electronics·TypeExperimental study·DateApr 15, 2024

Advances in microRNA-mediated regulation of cardiomyocyte injury after coronary microembolization

Researchers investigated the role of microRNAs in regulating cardiomyocyte injury after coronary microembolization. They found that changes in miRNA levels decrease myocardial autophagy and worsen cardiac prognosis. This study suggests a potential strategic pathway for therapeutic intervention in CME management.

SourceCompuscript Ltd·JournalCardiovascular Innovations and Applications·DateApr 15, 2024

Medical economic consequences, predictors, and outcomes of immediate atrial fibrillation recurrence after radiofrequency ablation

A study of 898 patients with atrial fibrillation found that immediate recurrence during the blanking period after radiofrequency catheter ablation correlates with greater costs, hospitalization duration, and elevated 1-year cumulative AF recurrence rate. IEC was identified as an independent predictor of Im-Recurr.

SourceCompuscript Ltd·JournalCardiovascular Innovations and Applications·DateApr 15, 2024

Hidden threat: Global underground infrastructure vulnerable to sea-level rise

A recent study by University of Hawaii at Manoa researchers highlights the hidden threat of global underground infrastructure vulnerability to sea-level rise. Shallow and saltier groundwater exacerbates corrosion and failure of critical systems such as sewer lines, roadways, and building foundations in cities worldwide.

SourceUniversity of Hawaii at Manoa·JournalAnnual Review of Marine Science·TypeData/statistical analysis·DateApr 15, 2024