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PLOS


Sunrise and sunset guide daily activities of city-dwellers

Researchers used 'reality mining' to analyze mobile phone records of one million people, finding that the timing of sunrise and sunset still guides daily activities. The study also reveals sex differences in sleep duration, with women sleeping more than men as they age.

SourcePLOS·JournalPLOS Computational Biology·DateNov 21, 2017

Second HIV test helps prevent incorrect HIV diagnosis in infants

A new study suggests that a second HIV test can substantially reduce incorrect diagnoses in infants, saving costs on unnecessary treatment. The study found that confirmatory testing reduces the number of infants incorrectly diagnosed with HIV by 99.6%, leading to cost savings over a lifetime.

SourcePLOS·JournalPLOS Medicine·DateNov 21, 2017

Health care reforms fail to lower hospitalizations in England

A new study published in PLOS Medicine found that recent health care reforms in England did not lead to the expected decrease in hospitalisations and specialist visits. In fact, there was an increase in outpatient specialist visits, resulting in 3.7 million additional specialist visits between 2012 and 2015.

SourcePLOS·JournalPLOS Medicine·DateNov 14, 2017

Young bats learn bat 'dialects' from their nestmates

A new study shows that young bats adopt a specific 'dialect' spoken by their colonies, even when it differs from their mother tongue. Researchers used playback recordings to expose pups to different vocalizations and found they developed a dialect resembling the one they were exposed to.

SourcePLOS·JournalPLOS Biology·DateOct 31, 2017

Does cutting weekend allied health services hurt patients?

A study published in PLOS Medicine found that removing weekend allied health services from hospitals had no significant effect on patients' length of stay or adverse events. In fact, having no services was associated with a 2% reduction in length of stay and a 3% decrease in adverse events.

SourcePLOS·JournalPLOS Medicine·DateOct 31, 2017

First Jurassic ichthyosaur fossil found in India

A nearly complete Jurassic ichthyosaur fossil was discovered in India, measuring over 5.5 meters in length. The fossil is believed to belong to the Ophthalmosauridae family and is thought to have lived between 165-90 million years ago.

SourcePLOS·JournalPLOS ONE·DateOct 25, 2017

Universities should actively support open scholarship

A new article in PLOS Biology argues that universities should support the sharing of educational resources to benefit society. The author proposes several ways institutions can counter practices that inhibit open information flow, including awarding faculty prizes for community engagement.

SourcePLOS·JournalPLOS Biology·DateOct 24, 2017

Studying insect behavior? Make yourself an ethoscope!

A new low-cost, easy-to-use, and self-made customizable piece of equipment called the ethoscope has been invented to study flies' behavior. Ethoscopes can automatically record fly movements and even manipulate them, saving researchers time and enabling more efficient studies.

SourcePLOS·JournalPLOS Biology·DateOct 19, 2017

Gut bacterium indirectly causes symptoms by altering fruit fly microbiome

A new study found that CagA, a protein produced by the bacterium Helicobacter pylori, can alter the population of microbes living in the fruit fly gut, leading to disease symptoms. The researchers suggest that manipulating the balance of microbes in the gut may be able to mitigate the harmful effects of infection with H. pylori.

SourcePLOS·JournalPLOS Pathogens·DateOct 19, 2017

High blood pressure boosts risk of common heart valve disorder

Researchers found a significant association between elevated systolic blood pressure and the development of mitral regurgitation, a condition where the heart valve leaks. The study suggests that controlling blood pressure may be crucial in preventing this common heart valve disorder.

SourcePLOS·JournalPLOS Medicine·DateOct 17, 2017

Pumas living near human development expend more energy

A study found that pumas in developed areas are more active at night, expending 10-11% more energy daily. This increased activity affects their ability to hunt and feed their young, highlighting the importance of conservation strategies in human-dominated landscapes.

SourcePLOS·JournalPLOS ONE·DateOct 11, 2017