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Science News Archive October 2014 - Page 32


Page 32 of 35

Continuous fabrication system for highly aligned polymer films provides method for tuning mechanical and thermal properties in bulk polymers

Researchers at MIT demonstrated a novel automated fabrication process for producing highly aligned polymer films (HAPFs) with superior mechanical and thermal properties. The process involves sol-gel extrusion, structure freezing and drying, and mechanical drawing, resulting in uniform alignment of molecular chains.

SourceWorld Scientific·JournalTECHNOLOGY·DateOct 3, 2014

Study questions the prescription for drug resistance

A new study reviewing nearly 70 antimicrobial resistance studies suggests that aggressive treatment may not always be the best way to prevent resistant pathogens. The review found that varying drug dosages and treatment durations may affect resistance emergence, and moderate treatment could be a more effective strategy for some diseases.

Cattle code cracked in detail

Scientists have created a global database that increases detailed knowledge of the cattle genome by several orders of magnitude. The database contains genomes of over 1,200 animals from various breeds, providing a comprehensive resource for studying cattle genetics and livestock history.

SourceAarhus University·JournalNature Genetics·DateOct 3, 2014

Intestinal failure-associated liver disease -- new position paper in Journal of Pediatric Gastroenterology and Nutrition

Intestinal failure-associated liver disease (IAFLD) in children is characterized by gradual and often symptomless liver injury, with mortality rates up to 40%. Early enteral feeding and referral to specialized intestinal failure centers are key to prevention and treatment.

SourceWolters Kluwer Health·JournalJournal of Pediatric Gastroenterology and Nutrition·DateOct 3, 2014

Falling asleep: Revealing the point of transition

Scientists developed a new statistical method to track the continuous changes in wakefulness during sleep onset, identifying healthy subjects who behave as though awake despite being clinically asleep. The study suggests that understanding how one falls asleep is crucial for improving sleep diagnosis and treatment.

SourcePLOS·JournalPLOS Computational Biology·DateOct 2, 2014

Parents drive kids' car choices

A new study by Michigan State University economist Soren Anderson found that children are 39% more likely to buy a particular car brand if their parents bought that brand. This inherited brand loyalty could impact automakers' marketing strategies, with potential implications for pricing and product offerings.

SourceMichigan State University·JournalJournal of Industrial Economics·DateOct 2, 2014

How curiosity changes the brain to enhance learning

Research reveals that curiosity activates brain regions involved in learning and memory, leading to improved retention of information. Curiosity also recruits the reward system and interactions between the hippocampus and reward circuit enhance learning, suggesting new approaches for treating memory disorders.

SourceCell Press·JournalNeuron·DateOct 2, 2014

Discovery helps to spot what makes a good drug

Researchers developed a new test that determines which drugs are unlikely to work by analyzing their structural similarity to naturally occurring substances. The 'rule of 0.5' shows a strong correlation between marketed drugs and metabolites, indicating that molecules with low similarity are unlikely to succeed.

SourceUniversity of Manchester·JournalMetabolomics·DateOct 2, 2014

Drug-food interactions in mountaineering

A recent study by the University of the Basque Country highlights the risks of drug-food interactions in mountaineering, particularly at high altitudes. The researchers emphasize the importance of controlling medications and nutritional ergogenic aids to prevent adverse reactions and ensure safe ascent.

SourceUniversity of the Basque Country·JournalRevista Internacional de Medicina y Ciencias de la Actividad Física y del Deporte·DateOct 2, 2014

Making oxygen before life

Researchers at UC Davis have found a way to form oxygen in one step by using a high-energy vacuum ultraviolet laser to excite carbon dioxide. This process could be occurring naturally on Mars and Venus, where carbon dioxide dominates the atmosphere. The discovery adjusts models of planetary atmosphere evolution.

HIV pandemic's origins located

A new study reconstructs the genetic history of HIV-1 group M and concludes that it originated in Kinshasa around 1920. The team's analysis suggests a 'perfect storm' of factors, including urban growth, transport links, and social changes, contributed to the emergence of HIV from Kinshasa and its spread across Africa and the world.

SourceUniversity of Oxford·JournalScience·DateOct 2, 2014