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Ancient Brazilian pit house occupied continuously for centuries

A study published in PLOS ONE found that a proto-Jê pit house in southern Brazil was continually occupied and extended over two centuries. The researchers used radiocarbon dating and Bayesian modeling to analyze the site, which revealed twelve well-preserved floors with different types of ceramics and renovation techniques.

SourcePLOS·JournalPLOS ONE·DateJul 14, 2016

Energy-dense food consumption declines after Mexico's tax

A study published in PLOS Medicine found that Mexico's nonessential food tax led to a significant decline in energy-dense food purchases, primarily among low and medium SES households. The study showed a 5.1% decline in taxed food sales beyond pre-tax trends, with lower SES households experiencing an even greater reduction of 10.2%.

SourcePLOS·JournalPLOS Medicine·DateJul 5, 2016

Study: How we explain things influences what we think is right

A new study found that when people focus on the inherent traits of something, they are more likely to assume that the patterns they see around them are good. However, when participants were exposed to information about external factors, they became more flexible in their thinking and less likely to think that the way things are is good.

Building a better bowtie

Researchers created bowtie-shaped silver nanoparticles to study quantum phenomena, enabling strong coupling between photons and single quantum systems. The ability to control this coupling could lead to the development of more powerful computing and encryption devices.

SourceWeizmann Institute of Science·JournalNature Communications·DateJul 3, 2016

Refugees can offer economic boost to their host countries

A recent study by UC Davis and UN World Food Program found that refugees receiving cash aid can create significant economic benefits for their host countries. The researchers discovered that each additional refugee increased local income by up to 96% in one of the camps, with most of this money spent on goods and services outside the c...

SourceUniversity of California - Davis·JournalProceedings of the National Academy of Sciences·DateJun 20, 2016

Polymer 'pens'

The University of Delaware-DuPont team has received an NSF grant to investigate a new approach to manufacturing small-scale structures that are cheaper, lighter and defect-free. The research aims to create ultra-small features using self-assembling macromolecules and block copolymers.