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Science News Archive July 2018 - Page 3


Page 3 of 38

Extreme conditions in semiconductors

Researchers from the Universities of Konstanz and Paderborn have successfully demonstrated Wannier-Stark localization in a high-purity gallium arsenide crystal. This state results in drastic changes to the electronic structure of the crystal, leading to extreme optical nonlinearity and potential chemical reactivity.

SourceUniversity of Konstanz·JournalNature Communications·DateJul 30, 2018

Supercomputing the 'how' of chemical reactions

The Atesins used supercomputers at the Texas Advanced Computing Center to study organometallic compounds and understand the structure of a palladium catalyst. Their research revealed that the most stable form of the molecule is chair-shaped, and repulsion between this conformation and the substrate dictates the final product.

SourceUniversity of Texas at Austin, Texas Advanced Computing Center·JournalComputational and Theoretical Chemistry·DateJul 30, 2018

Poor mental health days may cost the economy billions of dollars

A study by Penn State researchers found that poor mental health days can lead to a 1.84% drop in per capita real income growth rate, resulting in $53 billion less total income each year. Investing in mental health resources may help mitigate these effects, particularly in rural counties with limited access to services.

SourcePenn State·JournalReview of Regional Studies·DateJul 30, 2018

New electrocatalyst developed for ORR

A team of researchers from Beihang University has fabricated a new type of nonprecious metal-based electrocatalyst, VNQD-NG, for oxygen reduction reaction. The material exhibits high electrocatalytic activity, long durability, and high selectivity for ORR.

SourceWorld Scientific·JournalNANO·DateJul 30, 2018

Nano-optic endoscope sees deep into tissue at high resolution

Researchers have developed a new class of endoscopic imaging catheters that overcome the limitations of current systems, achieving higher resolution and functionality. The nano-optic endoscope incorporates metalenses into its design, enabling high-resolution imaging at extended depth of focus without complex optical components.

Climate taxes on agriculture could lead to more food insecurity than climate change itself

A new IIASA-led research suggests that climate mitigation schemes in agriculture could lead to more widespread hunger and food insecurity than the direct impacts of climate change. The study highlights the need for smarter, inclusive policies that prioritize development goals alongside emissions reduction.

Australia facing increased intense rain storms

A landmark study by Newcastle University researchers finds that heavy, short rain storms are intensifying rapidly in Australia, leading to increased flash flood and urban flooding risks. The study, published in Nature Climate Change, shows that these extreme events are substantially larger than expected under climate change.

SourceNewcastle University·JournalNature Climate Change·DateJul 30, 2018

ASU research finds silicon-based, tandem photovoltaic modules can compete in solar market

New solar energy research from Arizona State University demonstrates that silicon-based tandem photovoltaic modules can become increasingly attractive in the US market, with potential to reduce costs and increase efficiency. The study found that 32% efficient anticipated tandem modules can cost more than three times that of projected 2...

SourceArizona State University·JournalNature Energy·DateJul 30, 2018

In a Weyl thermopile

Physicists at the University of Tokyo have discovered a new method to generate electricity in special materials called Weyl magnets, exploiting temperature gradients. This could lead to the creation of low-power, low-maintenance electronic devices.

SourceUniversity of Tokyo·JournalNature Physics·DateJul 30, 2018

Study: Student loans hamper wealth accumulation among black, Hispanic adults

A new study suggests that student loans hinder wealth accumulation among black and Hispanic adults. By age 30, these individuals had significantly lower net worth ($36,000) and financial assets ($11,780), compared to their peers without debt. The study highlights the importance of college education in building wealth among minority you...

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalChildren and Youth Services Review·DateJul 30, 2018