Add BrightSurf on Google Email

Science News Archive 2019 - Page 46


Page 46 of 486

Genetic studies reveal how rat lungworm evolves

Researchers found transposable elements and gene expansions related to antioxidants in the rat lungworm parasite, suggesting adaptive evolution. The study also discovered convergent evolution of a key enzyme with flukes, which share similar host requirements.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateNov 21, 2019

New algorithms train AI to avoid specific bad behaviors

Researchers at Stanford and UMass Amherst develop a new technique to create machine-learning algorithms that can learn to avoid undesirable outcomes such as gender bias and excessive risk. Their approach, called the Seldonian algorithm, enables users to specify what behaviors they want an AI system to avoid with high probability.

SourceStanford University·JournalScience·DateNov 21, 2019

Who is left behind in Mass Drug Administration?

Research reveals that MDA programmes often fail to reach marginalized communities due to inequitable treatment delivery, affecting PC NTD prevention. The study highlights the need for consideration of gender and equity issues in health systems to address these disparities.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateNov 21, 2019

Illinois researcher's theory of pore-scale transport to enable improved flow batteries

A new theory by Assistant Professor Kyle Smith predicts how fluid flow affects molecule reaction at porous electrode surfaces in redox flow batteries. The research enables prediction of mass transfer coefficients based on microscopic pore structure, enabling engineers to design optimal structures.

SourceUniversity of Illinois Grainger College of Engineering·JournalJournal of The Electrochemical Society·DateNov 21, 2019

Brain biomarker predicts compulsive drinking

Researchers at Salk Institute discover a brain circuit controlling alcohol drinking behavior in mice, which can predict compulsive drinking. The study found that neural communication patterns between two brain regions are related to the development of compulsive drinking.

SourceSalk Institute·JournalScience·DateNov 21, 2019

Neighborhood matters for fentanyl-involved overdose deaths

A study by Columbia University Mailman School of Public Health found that fentanyl-involved overdose deaths are concentrated in resource-deprived neighborhoods. The research used census block group-level data to examine the local geographic distribution of drug overdoses, revealing a unique perspective on overdose locations.

SourceColumbia University's Mailman School of Public Health·JournalAmerican Journal of Public Health·DateNov 21, 2019

Predicting metastasis from primary tumor size

A new mathematical model predicts the presence of undetectable metastases based on primary tumor size, which is associated with a poorer prognosis. The model accurately reflects clinical study data for several cancer types, highlighting the potential dangers of delays in surgery for smaller tumors.

SourcePLOS·JournalPLOS Computational Biology·DateNov 21, 2019

New Alzheimer's risk gene discovered

A new study has identified a genetic variation in the Mucin 6 gene that may contribute to late-onset Alzheimer disease. The findings suggest a strong association between the genetic variant and the disease, implying a large effect size and opening up possibilities for future therapeutic targets.

SourceOxford University Press USA·JournalJournal of Neuropathology & Experimental Neurology·DateNov 21, 2019

Algorithm for preventing 'undesirable behavior' works in gender fairness and health tests

A new framework for designing machine learning algorithms helps prevent undesirable behavior, including biases in medical diagnoses and financial predictions. The approach shifts the burden from users to designers, making it easier to create 'well-behaved' algorithms without requiring extensive domain knowledge or complex data analysis.