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Science News Archive October 2024 - Page 38


Page 38 of 44

Systematic review highlights decline in mental health care and increase in suicides following FDA youth antidepressant warnings

A systematic review found that FDA-issued warnings about antidepressant use among youth led to a decline in pediatric mental health care and an increase in suicides. The study suggests that these warnings, intended to encourage physician vigilance, had unintended consequences.

SourceHarvard Pilgrim Health Care Institute·JournalHealth Affairs·TypeSystematic review·DateOct 7, 2024

HPV vaccination switch to 1-dose gender-neutral approach

A new Canadian study models a 1-dose HPV vaccination approach and finds it could prevent a similar number of cervical cancers as 2 doses if vaccine protection remains high. The switch is projected to be a more efficient use of vaccine doses, potentially eliminating cervical cancer in Canada by 2040.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·TypeComputational simulation/modeling·DateOct 7, 2024

Aussies above 50 are living longer, while younger people are suffering

New research from the Australian National University reveals that Australians under 50 are experiencing stagnating life expectancy, while older cohorts are living longer. The study found that external causes of death, such as substance use disorders and traffic accidents, were major contributors to this trend.

SourceAustralian National University·JournalInternational Journal of Epidemiology·TypeMeta-analysis·DateOct 7, 2024

A compost in the sea that produces oxygen

A study on Posidonia seagrass meadows in the Mediterranean Sea reveals surprising results: dead leaves break down like compost, producing oxygen through photosynthetic organisms. The researchers also found a two-way exchange between macroalgae on rocks and seagrass, with organic molecules diffusing between them.

Decoding bacterial genomes using single-cell genomics

Researchers developed a novel single-cell genome approach to analyze microbial diversity and genetic features, recovering 300 missed bacterial species and providing insights into antibiotic resistance genes and gene exchange networks. The study has potential applications in public health, environmental monitoring, and agriculture.

SourceWaseda University·JournalMicrobiome·TypeExperimental study·DateOct 7, 2024

Revealing disparities in hepatitis C care for reproductive-aged women to break cycle of viral transmission

A study published in Clinical Infectious Diseases reveals that Asian and Black individuals are less likely to be tested for hepatitis C, while American Indian/Alaska Native women are more likely to receive treatment. The findings highlight the need to prioritize equity in healthcare approaches to ensure timely diagnosis and effective t...

SourceBoston Medical Center·JournalClinical Infectious Diseases·DateOct 7, 2024

Scientists discover a secret to regulating our body clock, offering new approach to end jet lag

Researchers identified a protein called Casein Kinase 1 delta (CK1δ) that regulates our biological clock by tagging other proteins to fine-tune circadian rhythms. The discovery highlights how a small part of CK1δ can greatly influence its overall activity, opening new avenues for treating disorders related to the body clock.

SourceDuke-NUS Medical School·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateOct 6, 2024

Super-strong bacterial cellulose macrofibers made simple with TAT technique

Researchers have developed a novel method to fabricate high-performance macrofibers with exceptional mechanical properties and humidity response using the TAT technique. The resulting fibers exhibit record tensile strength and rapid actuation in response to environmental moisture, making them ideal for various industries.

SourceJournal of Bioresources and Bioproducts·JournalJournal of Bioresources and Bioproducts·TypeExperimental study·DateOct 5, 2024

Unveiling the future of sustainable materials: cellulose-MXene composites

The integration of MXene with cellulose creates a material with enhanced photothermal, electrothermal, biocidal, and piezoelectric characteristics. The composite showcases remarkable pressure sensitivity, efficient electromagnetic interference shielding, and superior antibacterial activity.

SourceJournal of Bioresources and Bioproducts·JournalJournal of Bioresources and Bioproducts·TypeCommentary/editorial·DateOct 5, 2024

Chestnut tannin: A sustainable bioresource for diverse applications

Recent research highlights the multifaceted potential of chestnut tannin in various sectors, including its use as a replacement for antibiotics in animal feed and as a biostimulant and biofertilizer in agriculture. The compound's high biological activity is attributed to its ortho-phenolic groups.

SourceJournal of Bioresources and Bioproducts·JournalJournal of Bioresources and Bioproducts·TypeLiterature review·DateOct 5, 2024

New molecule can mimic the effects of fasting and exercise

Researchers have developed a molecule called LaKe that can mimic the metabolic response to regular exercise and fasting by increasing lactate and ketone levels in the blood. This molecule has the potential to alleviate concentration difficulties, treat brain trauma, Parkinson's, and dementia, and improve overall health.

SourceAarhus University·JournalJournal of Agricultural and Food Chemistry·TypeExperimental study·DateOct 4, 2024

When dogs and humans find a common language

Researchers found that dogs slow down their speech rate when addressed by humans, while humans' speech rhythms meet in the middle. Dogs process human language only within the delta band (1-3 Hz) and with phonological content, debunking myths about prosody sensitivity.

SourceInstitut Pasteur·JournalPLOS Biology·TypeExperimental study·DateOct 4, 2024

Antarctic ‘greening’ at dramatic rate

The Antarctic Peninsula has experienced a dramatic increase in vegetation cover over the last four decades, with satellite data showing an acceleration of 30% in recent years. This 'greening' trend is attributed to climate change and has significant implications for the region's ecosystem and environmental future.

SourceUniversity of Exeter·JournalNature Geoscience·DateOct 4, 2024

Federal government may be paying twice for care of veterans enrolled in Medicare Advantage plans

Researchers at Brown University found that the federal government may be paying more than $78 billion annually to care for U.S. military veterans enrolled in Medicare Advantage plans, raising questions about federal overpayments to those private plans. The study suggests that dual enrollment of some veterans could result in more federa...

SourceBrown University·JournalJAMA·TypeData/statistical analysis·DateOct 4, 2024

Black, Hispanic, and American Indian adolescents likelier than white adolescents to be tested for drugs, alcohol at pediatric trauma centers

A study by researchers at UCLA found that Black, Hispanic, and American Indian adolescents are more likely to be tested for drugs and alcohol than white adolescents at pediatric trauma centers. The study suggests that clinician biases may contribute to these disparities.

SourceUniversity of California - Los Angeles Health Sciences·JournalJAMA Network Open·TypeData/statistical analysis·DateOct 4, 2024

Virginia Tech researchers publish real-time data to understand what happens when people lose their balance

Virginia Tech researchers publish real-time data to better understand what happens when people lose their balance. The study uses wrist-worn voice recorders to capture immediate, self-reported data from participants, providing a more reliable understanding of the circumstances surrounding balance loss among older adults.

SourceVirginia Tech·JournalJournal of the American Geriatrics Society·DateOct 4, 2024

Moffitt study unveils the role of gamma-delta T cells in cancer immunology

Researchers at H. Lee Moffitt Cancer Center & Research Institute analyzed gamma-delta T-cell receptor landscape across 11,000 tumors, providing insights into their role in patient outcomes and treatment efficacy. The study's findings suggest that diversity and clonality of gamma-delta T cells can significantly impact patient survival.

SourceH. Lee Moffitt Cancer Center & Research Institute·JournalCell·TypeObservational study·DateOct 4, 2024

Pterosaurs needed feet on the ground to become giants

A University of Leicester study has found that the ability to walk efficiently on the ground played a crucial role in determining how large pterosaurs could grow. Early pterosaurs were adapted for climbing, but later species developed changes to their hands and feet that allowed them to thrive on land, leading to some becoming gigantic.

SourceUniversity of Leicester·JournalCurrent Biology·DateOct 4, 2024

Groundbreaking wastewater treatment research led by Oxford Brookes targets global challenge of toxic ‘forever chemicals’

Researchers at Oxford Brookes University have developed a groundbreaking method to tackle the global challenge of toxic PFAS chemicals in water supplies. The new machine uses bubbles to remove these harmful substances, showing promising results with nearly a 36% degradation rate in just 30 minutes.

SourceOxford Brookes University·JournalChemical Engineering Journal·TypeExperimental study·DateOct 4, 2024

Life on Earth was more diverse than classical theory suggests 800 million years ago, a Brazilian study shows

A Brazilian study published in PNAS suggests that life on Earth was more diverse than classical theory suggests 800 million years ago, with multiple lineages of amoebae and ancestors of plants, algae, and animals already established. The study's findings challenge the long-held paradigm for the Neoproterozoic period and provide new ins...

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalProceedings of the National Academy of Sciences·DateOct 4, 2024