Add BrightSurf on Google Email

Science News Archive November 2018 - Page 9


Page 9 of 42

Using microcredit to increase rice yield in Bangladesh

A study by Kyoto University found that microcredit programs in Bangladesh increased rice yield and overall crop farm income. Households also showed a higher adoption of hybrid and high-yield rice varieties. Additionally, there was a positive effect on cultivating owned land and livestock ownership.

SourceKyoto University·JournalAmerican Journal of Agricultural Economics·DateNov 26, 2018

Complex systems help explain how democracy is destabilised

Economic inequality and political divergence can lead to instability in democracies. Social media algorithms also play a role in distorting public opinion and creating false consensus effects. The researchers argue that a better understanding of complex systems is needed to preserve democratic institutions.

SourceIOP Publishing·JournalEuropean Journal of Physics·DateNov 26, 2018

Smarter AI: Machine learning without negative data

Researchers developed a new machine learning method that allows AI to make classifications without negative data, a crucial component in traditional classification technology. This breakthrough enables AI systems to function effectively even when limited by data regulation or business constraints.

SourceRIKEN·DateNov 26, 2018

Environment turns molecule into a switch

Physicists from the University of Würzburg have successfully manipulated a molecule into two stable states by controlling its environment using an electrical field. This breakthrough could enable the creation of molecular switches for spintronics applications, a promising technology for future data processing.

SourceUniversity of Würzburg·Journalnpj Quantum Materials·DateNov 26, 2018

Something to chew on

A team of scientists found that herbivory has a complex relationship with plant diversity, but is crucial for maintaining biodiversity when dominant species are present. In some grasslands, herbivores help regulate the growth of fast-growing plants and promote smaller, slower-growing species.

SourceUniversity of California - Santa Barbara·JournalNature Ecology & Evolution·DateNov 26, 2018

How common are eating disorders in young children?

A study of 4,500 US children aged 9-10 found an overall frequency of eating disorder diagnoses at 1.4%, with no significant differences between girls and boys. The prevalence of specific disorders varied, including anorexia nervosa (0.1%), binge-eating disorder (0.6%), and other specified feeding and eating disorders (0.7%).

SourceJAMA Network·JournalJAMA Pediatrics·DateNov 26, 2018

Mutations boost immunity: Toward a cancer vaccine

Researchers develop method to identify tumor-specific factors in blood that can elicit a protective immune response, potentially leading to an effective vaccine against cancer. The technique relies on peptide arrays and frameshift mutations, which have been shown to be more effective stimulators of immune response than point mutations.

SourceArizona State University·JournalScientific Reports·DateNov 26, 2018

Childhood physical inactivity reaches crisis levels around the globe

A global report by the Active Healthy Kids Global Alliance shows that childhood physical inactivity is a pervasive public health problem affecting children worldwide. The report grades 49 countries on their physical activity levels, revealing that excessive screen time and urbanization are major contributors to this issue.

SourceChildren's Hospital of Eastern Ontario Research Institute·JournalJournal of Physical Activity and Health·DateNov 26, 2018

Microbes 'MacGyver' membrane transport

E. coli's KdpFABC transport system uses a unique combination of pore and transporter to import potassium ions into the cell, blurring the boundaries between passive transport and active transport complexes. This discovery challenges the long-held dogma that these two systems are mutually exclusive.

SourceUniversity of Groningen·JournalNature Communications·DateNov 26, 2018

Citrate-based biomaterial fuels bone healing with less rejection

Researchers at Penn State have discovered that citrate, a natural product found in bones and citrus fruit, can fuel bone healing by providing extra energy for stem cells. This understanding will help develop slow-release biomaterials to speed up bone repair and reduce inflammation.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateNov 26, 2018

New way to analyze metagenome

Researchers created Knomics-Biota to analyze metagenomic data, identifying bacteria types, proportions, and beneficial substances. The platform allows users to visualize results and compare data with thousands of other samples, facilitating international collaborations in microbiome analysis.

SourceITMO University·JournalBioData Mining·DateNov 26, 2018