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Science News Archive July 2017 - Page 35


Page 35 of 37

Engineers find way to evaluate green roofs

A team of engineers at the University of Illinois has developed a mathematical technique to assess green roof performance, considering factors such as rainfall intensity and soil moisture. The study aims to facilitate communication between stakeholders about the financial risk and environmental benefits of green infrastructure.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Sustainable Water in the Built Environment·DateJul 5, 2017

Bacteria collaborate to propel the ocean 'engine'

Researchers at the University of Warwick discovered that phototrophic and heterotrophic bacteria collaborate to cycle nutrients, feeding the ecosystem. This interaction is crucial for maintaining a balanced nutrient level, supporting half of the planet's primary production and oxygen supply.

SourceUniversity of Warwick·JournalNature Microbiology·DateJul 5, 2017

Figuring out how fast Greenland is melting

A new study from University of Arizona scientists has analyzed Greenland's past temperatures to better understand the island's vast ice sheet melting. The research found that current temperatures are warmer than the 1930s, with a long-term trend for ever-higher surface temperatures.

SourceUniversity of Arizona·JournalThe Cryosphere·DateJul 5, 2017

Probing psychopathic brains

A study by Harvard University researchers found that psychopaths' brains prioritize short-term gains, leading to poor decision-making and violent behavior. The research used brain scans of nearly 50 prison inmates, revealing a specific connection between the ventral striatum and prefrontal cortex.

SourceHarvard University·JournalNeuron·DateJul 5, 2017

Re-making planets after star-death

Astronomers Dr Jane Greaves and Dr Wayne Holland propose a new model for forming planets in the aftermath of a supernova explosion. They suggest that material caught up in the bow-wave around a moving neutron star could provide raw materials for future planet formation. Further data from ALMA is needed to confirm this theory.

SourceRoyal Astronomical Society·JournalMonthly Notices of the Royal Astronomical Society·DateJul 5, 2017

Sex now needs to be included as a biological variable in NIH-funded research, but how?

The National Institutes of Health has instituted a policy to consider sex as a biological variable in funded research, with recommendations provided by coauthors Terri Lynn Cornelison and Janine Austin Clayton. Guidelines include including both male and female subjects in studies and generalizing findings appropriately.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalGender and the Genome·DateJul 5, 2017

Global ocean health relatively stable over past 5 years

A study analyzing five years of Ocean Health Index data for 220 countries found that global ocean health has remained stable, but individual countries have seen changes, particularly in the Arctic and sub-Arctic regions. Improvements in fishery management and marine protected areas may have stabilized ocean health scores in other regions.

SourcePLOS·JournalPLOS ONE·DateJul 5, 2017

V.A. campaign to increase hospice care showing results

A new study found that a V.A. initiative to improve end-of-life care led to a substantial increase in the use of hospice among U.S. veterans. Hospice use grew at a rate twice as fast as the general Medicare population, with an estimated additional 17,046 veterans receiving hospice care between 2010 and 2014.

SourceBrown University·JournalHealth Affairs·DateJul 5, 2017

2-D layered devices can self-assemble with precision

A team of Penn State researchers has created 2D layered devices that can self-assemble at atomistic precision, enabling the production of high-efficiency devices such as flexible electronics and energy storage systems. The devices feature minute spacing between layers, which is crucial for achieving optimal performance.

SourcePenn State·JournalCarbon·DateJul 5, 2017

Local views key to unlocking ways to fairer and more successful nature conservation

Researchers found that an approach to pursuing equity with local communities' perspectives can bring better outcomes for habitats and wildlife, as well as some of the world's poorest people. Current practices are limited in their interpretation of equity, resulting in responses that sustain local perceptions of injustice and miss oppor...

SourceUniversity of East Anglia·JournalConservation Letters·DateJul 4, 2017

Nicking in new nucleotides

A Kyoto University team developed a genome-wide base-editing technology using the CRISPR Nickase system, which reduces inaccurate edits and improves editing accuracy. The system combines a guide RNA and Cas9 nickase to 'nick' the DNA double helix, resulting in faster generation of yeast mutants and increased precision.

SourceKyoto University·JournalScientific Reports·DateJul 4, 2017

Mapping genes could improve cancer diagnosis

Researchers have developed a new method to detect genetic changes in cancer cells using Hi-C, which can identify major genome rearrangements and copy number variations with high accuracy. This approach has the potential to aid targeted treatments and enhance cancer diagnosis.

SourceBabraham Institute·JournalGenome Biology·DateJul 4, 2017

McMaster researchers make data centers more efficient

The project aims to create a system that can effectively monitor data centers and analyze findings with minimal human intervention. Led by McMaster Engineering professors, the team will develop tools to analyze performance in real-time, helping companies make decisions to reduce energy usage and predict system faults and failures.

Genome sequence of a diabetes-prone rodent

The sand rat genome shows a highly divergent GC-rich genomic domain with several essential genes, including the insulin-regulating homeobox gene Pdx1. This region is subject to elevated mutation rates, which could influence evolution and the course of diabetes.

SourceUniversity of Oxford·JournalProceedings of the National Academy of Sciences·DateJul 4, 2017

Extreme weather conditions and climate change account for 40 percent of global wheat production variability

A new study reveals that heat stress concurrent with drought or water excess can explain about 40% of the changes in wheat yields from one year to another. Water excess affects wheat production more than drought in several countries, contributing to reduced yields due to increased pests and diseases.

SourceEuropean Commission Joint Research Centre·JournalEnvironmental Research Letters·DateJul 4, 2017

Through fossil leaves, a step towards Jurassic Park

Using infrared spectroscopy and statistical analysis of organic molecules in fossil leaves, researchers have solved long-standing questions about extinct plant relationships. The study reveals that ancient plant species grouped according to well-established botanical relationships, shedding light on their evolution.

SourceLund University·JournalNature Ecology & Evolution·DateJul 4, 2017

Motivation through punishment

Researcher Andreas Eder found that punishment alone does not suppress undesirable behavior but can even facilitate it. The brain uses behavioral consequences to trigger actions more easily, even if the consequences are disagreeable. Providing clear feedback for desired behavior is crucial in educational practices.

SourceUniversity of Würzburg·JournalJournal of Experimental Psychology·DateJul 4, 2017