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Science News for July 20, 2018


The genes are not to blame

A systematic literature analysis by TUM researchers found no evidence for genetic factors affecting total calorie, carbohydrate, or fat consumption. However, genes like FTO and MC4R were linked to energy intake in some studies, but the findings were inconsistent.

SourceTechnical University of Munich (TUM)·JournalAdvances in Nutrition·DateJul 20, 2018

Wave energy converters are not geared towards the increase in energy over the last century

Researchers found that wave energy converters did not take full advantage of available energy, especially during extreme events, and their design needs to be adapted to handle increasing ocean activity. The study suggests a 40% increase in marine energy over the last century, with the largest increase occurring in the last 20 years.

SourceUniversity of the Basque Country·JournalApplied Energy·DateJul 20, 2018

Can greening vacant urban land improve mental health?

A cluster randomized trial in Philadelphia found that greening vacant urban land improved self-reported mental health, with participants experiencing less depression and anxiety after the intervention. The study's results suggest that investing in green spaces can have a positive impact on mental wellbeing in urban areas.

SourceJAMA Network·JournalJAMA Network Open·DateJul 20, 2018

Current noises of Majorana fermions

Majorana fermions, which are self-antiparticles, can be detected using current noise in a topological Josephson junction. The study found that the non-equilibrium current noises exhibit peaks at specific frequencies, indicating the presence of these particles. This method provides a direct detection method for Majorana fermions.

Urgent change needed to regulate the environmental impacts of chemicals

The research identifies 22 key questions to address the most pressing knowledge gaps in chemical regulation, including identifying hotspots of contaminants and developing methods to protect biodiversity. Scientists emphasize the need for a holistic approach to assessing the effects of combinations of chemicals on ecological communities.

SourceUniversity of Sheffield·JournalEnvironmental Toxicology and Chemistry·DateJul 20, 2018

When political ideology shapes luxury buying

New research shows that conservative shoppers are more likely to purchase luxury items to maintain their social status. The study found a direct link between the political orientation of high-status individuals and their likelihood to buy luxury goods, with conservatives spending significantly more on luxury cars than liberals.

SourceINSEAD·JournalJournal of Marketing·DateJul 20, 2018

New findings on intercellular communication

Researchers at Université libre de Bruxelles have discovered a decoding mechanism for Wnt7 ligands, enabling precise interpretation of cell signals. This breakthrough has significant implications for understanding Wnt signaling and its regulation, potentially leading to new treatments for diseases like cancers and neurovascular disorders.

SourceUniversité libre de Bruxelles·JournalScience·DateJul 20, 2018