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Science News Archive 2023 - Page 8


Page 8 of 444

Protein allows poison dart frogs to accumulate toxins safely

Scientists have discovered the protein that enables poison dart frogs to accumulate and store potent toxins in their skin for self-defence against predators. The findings may suggest potential therapeutic strategies for treating humans poisoned with similar molecules.

SourceeLife·JournaleLife·TypeExperimental study·DateDec 19, 2023

New study explores how young people with early-onset psychosis view substance use and interventions

A new study by Southern Methodist University's Neely Myers found that young people with early-onset psychosis are ambivalent about stopping substance use. Participants offered feedback on ways to improve care, including more information about substance use and strategies for addressing psychological and physical pain.

SourceSouthern Methodist University·JournalEarly Intervention in Psychiatry·TypeCase study·DateDec 19, 2023

Treatment with bendamustine prior to CAR T-cell therapy in patients with refractory large B-cell lymphoma associates with poorer treatment outcomes

A study found that patients with refractory large B-cell lymphoma who received bendamustine before CAR T-cell therapy had a shorter progression-free survival and overall response rate compared to those who did not receive bendamustine. The use of bendamustine should be avoided in these patients when possible.

SourceVall d'Hebron Institute of Oncology·JournalJournal of Clinical Oncology·DateDec 19, 2023

Who wrote it? The AI ghostwriter effect

A new study investigates how people perceive and claim authorship of artificially generated texts, revealing that perceived ownership does not always align with declared authorship. Researchers found that participants who wrote the text themselves felt a stronger sense of ownership, while those who relied on AI ghostwriters did not.

SourceLudwig-Maximilians-Universität München·JournalACM Transactions on Computer-Human Interaction·DateDec 19, 2023

Giant bacterium uses unique processes to power itself

The giant bacterium Epulopiscium viviparus has modified its metabolism to make the most of its environment, using a rare method to produce energy and harvest nutrients from its host's gut. This unique approach allows it to thrive in extreme conditions, with similarities to how mitochondria function in more complex organisms.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateDec 18, 2023

NIH researchers create genetic atlas detailing early stages of zebrafish development

A new genetic atlas details the gene expression programs that drive zebrafish development, revealing insights into human embryonic growth and the origins of diseases such as gastrointestinal disorders. The atlas provides a comprehensive resource for studying cell development and differentiation in vertebrates.

Exoplanets’climate – it takes nothing to switch from habitable to hell

Scientists simulated the runaway greenhouse effect, transforming habitable climates into hostile environments, with significant changes in atmospheric structure and cloud coverage. The study provides key insights for the search of life elsewhere, as it demonstrates a critical water vapor threshold beyond which a planet cannot cool down.

SourceUniversité de Genève·JournalAstronomy and Astrophysics·TypeNews article·DateDec 18, 2023

Understanding the relationship between the performance of Proton Exchange Membrane Fuel Cells and hydrogen partial pressure

Researchers have made significant strides in understanding the relationship between hydrogen partial pressure and PEMFC performance, revealing a pronounced decline in performance as hydrogen partial pressure decreased. The study aims to simplify fuel cell quality testing, cost reduction, and reduced safety requirements.

SourceIndustrial Chemistry & Materials·JournalIndustrial Chemistry and Materials·TypeExperimental study·DateDec 18, 2023

Barbie should expand her range of medical and scientific professions

A study published in The BMJ analyzed Barbie's medical and scientist dolls and found they largely depicted white, adult, female doctors with limited specialties. The research highlights the need for more diverse and accurate representations of medical professionals and scientists in toys to inspire young girls.

SourceBMJ Group·JournalThe BMJ·TypeImaging analysis·DateDec 18, 2023

New method could help estimate wildlife disease spread

A new method can help estimate the prevalence of disease in free-ranging wildlife by accounting for animal clustering. This approach may reduce the number of samples needed to detect a disease. The researchers focused on Chronic Wasting Disease (CWD) in deer, which tends to cluster in family groups, making this method particularly useful.

SourceCornell University·JournalJournal of Agricultural Biological and Environmental Statistics·DateDec 18, 2023

ASU research reveals regions in U.S. where heat adaptation and mitigation efforts can most benefit future populations

New ASU research models the benefits of combining heat adaptation strategies with mitigation efforts to lessen extreme heat exposure in major US cities. The study finds that Northeast and Midwest regions can expect greater benefits, while Sun Belt cities face limited reductions.

SourceArizona State University·JournalNature Cities·TypeComputational simulation/modeling·DateDec 18, 2023

Pancreatic replacement therapy improves maladaptive behavior in preschool children with autism, according to research

Researchers found that pancreatic enzymatic replacement improved behavioral function in preschoolers with ASD, including reduced irritability, hyperactivity, and lethargy. The treatment had minimal side effects and demonstrated potential for addressing co-occurring maladaptive behaviors.

Few patients receive opioid agonist therapy after opioid overdose, despite benefits

Only 4.1% of hospital encounters for opioid overdoses led to opioid agonist therapy (OAT) initiation within a week of discharge from hospital, highlighting missed opportunities to prevent future mortality and morbidity related to opioid use disorder. Studies show that prompt OAT initiation in the emergency department is crucial to redu...

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·TypeObservational study·DateDec 18, 2023

International recognition played a crucial role in giving Libyan political actors sovereignty, study shows

A new study reveals that international recognition played a crucial role in shaping Libya's conflict, with contact and support from other countries affecting political actors' identity, resources, and legitimacy. The study argues that non-recognition can create change and is geopolitically inevitable.

SourceUniversity of Exeter·JournalInternational Studies Review·TypeSurvey·DateDec 18, 2023

Lexical simplification via single-word generation

A novel lexical simplification (LS) method, PaGeLS, is proposed to simplify sentences by generating substitute words without altering meaning. The method achieves state-of-the-art results, surpassing previous LS methods in candidate ranking and word substitution accuracy.

SourceHigher Education Press·JournalFrontiers of Computer Science·TypeExperimental study·DateDec 18, 2023

Using AI-related technologies can significantly enhance human cognition, finds new study

A new study published in Frontiers in Artificial Intelligence found that training in Interlingual Respeaking, a new practice combining human collaboration with speech recognition software, can improve language professionals' cognitive abilities. The research, conducted by the University of Surrey, showed significant enhancements in wor...

SourceUniversity of Surrey·JournalFrontiers in Artificial Intelligence·TypeExperimental study·DateDec 18, 2023

New possibilities for a healing toxin

PSI researchers develop antibody-like proteins that accelerate Botox's effects on nerve signals, suggesting faster pain relief. The discovery opens new options for therapeutic use of botulinum toxin A1 in treating conditions like cramping muscles and faulty nerve signals.

SourcePaul Scherrer Institute·JournalNature Communications·TypeExperimental study·DateDec 18, 2023

Researchers from NTU Singapore and National Centre for Infectious Diseases locate two compounds in blood that could identify patients at risk of severe dengue

Researchers have identified sST2 and suPAR in the blood of dengue patients, which could accurately predict patients at risk of severe dengue. The test kits would improve patient outcomes by distinguishing between non-life-threatening cases and severe dengue, requiring hospitalization.

SourceNanyang Technological University·JournalClinical Infectious Diseases·TypeExperimental study·DateDec 18, 2023

Doctor Who festive specials linked to lower death rates

A new Doctor Who episode aired during the festive period is associated with lower death rates in the subsequent year across the UK. The study highlights the positive effect doctors can have when working during the holiday season, suggesting that watching a doctor care for people may encourage health-seeking behavior.

SourceBMJ Group·JournalThe BMJ·TypeCommentary/editorial·DateDec 18, 2023

Toothbrushing tied to lower rates of pneumonia among hospitalized patients

A new study found that daily toothbrushing among hospitalized patients is associated with lower rates of hospital-acquired pneumonia and ICU mortality. The study, which analyzed data from over 2,700 patients, also showed that toothbrushing was linked to shorter durations of mechanical ventilation and ICU length of stay.

SourceBrigham and Women's Hospital·JournalJAMA Internal Medicine·TypeRandomized controlled/clinical trial·DateDec 18, 2023

First systematic analysis of NIH finds funding gaps for TB risk factors

A systematic analysis by researchers at Boston University School of Medicine finds that funding for key TB risk factors, such as undernutrition and alcohol use, is significantly lacking. The study highlights the need for increased NIH funding to address these comorbidities and realize global TB elimination goals.

SourceBoston University School of Medicine·JournalOpen Forum Infectious Diseases·TypeLiterature review·DateDec 18, 2023