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Science News Archive July 2019 - Page 28


Page 28 of 41

Ped EM docs at risk for developing compassion fatigue, burnout, low compassion satisfaction

A study published in Academic Emergency Medicine found that pediatric emergency medicine physicians are at risk for developing compassion fatigue, burnout, and low compassion satisfaction. The researchers recommend improving interpersonal relationships, work environment, and self-care to enhance provider well-being and patient care.

SourceSociety for Academic Emergency Medicine·JournalAcademic Emergency Medicine·DateJul 10, 2019

Giving nanowires a DNA-like twist

Scientists at Argonne National Laboratory discovered a DNA-like twisted crystal structure created with germanium sulfide nanowires, resembling the organic DNA structure. The twist causes the wire to elongate and widen into a helical structure, with segments resembling helically stacked bricks.

Chemical makers oppose new tariffs

Chemical manufacturers in the US are opposing new tariffs proposed by the Trump administration on $300 billion worth of Chinese goods. The additional taxes could hurt US companies' competitiveness and pricing advantage over foreign firms that do not have to pay tariffs.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateJul 10, 2019

Astronomers expand cosmic 'cheat sheet' in hunt for life

Researchers have created a new tool to understand exoplanet evolution, using Earth's biosignatures as a 'cheat sheet' to detect signs of life. By analyzing the colors produced by different organisms on Earth, scientists can now look beyond vegetation and detect surface biota dating back billions of years.

SourceCornell University·JournalThe Astrophysical Journal Letters·DateJul 10, 2019

No more trial-and-error when choosing an electrolyte for metal-air batteries

Researchers at Washington University in St. Louis have developed a novel parameter to select electrolytes for metal-air batteries, reducing trial-and-error testing. The 'Electrochemical' Thiele Modulus measures ion transport and reaction kinetics, allowing rational development of high-performance electrolytes.

SourceWashington University in St. Louis·JournalProceedings of the National Academy of Sciences·DateJul 10, 2019

Terahertz technology escapes the cold

Researchers at ETH Zurich have demonstrated a terahertz quantum cascade laser that operates without cryogenic cooling, reaching temperatures of up to 210 K. This breakthrough removes the main obstacles to widespread use in various applications, including non-invasive imaging and quality control.

SourceETH Zurich Department of Physics·JournalApplied Physics Letters·DateJul 10, 2019

Using artificial intelligence to detect discrimination

Researchers developed an AI tool to detect discrimination in salaries and policing, using causality-based counterfactual inference algorithms. The tool was tested on various datasets and found evidence of gender-based discrimination in salary, with women having lower odds of receiving a salary over $50,000 per year.

Puzzling on a quantum chessboard

A quantum computer has solved a complex chess puzzle using quantum physics, with the solution determined by atomic microscopy. The experiment was designed to demonstrate quantum supremacy for certain optimization problems, and its feasibility is now within reach of laboratory implementation.

SourceUniversity of Innsbruck·JournalQuantum·DateJul 10, 2019

Will your future computer be made using bacteria?

Scientists have developed a method to produce graphene materials using bacteria, overcoming a major hurdle in adopting this revolutionary nanomaterial. The bacterially-produced graphene material retains its amazing properties, making it suitable for innovative technologies such as field-effect transistor biosensors and conductive inks.

SourceUniversity of Rochester·JournalChemistryOpen·DateJul 10, 2019

Anaphylactic shock: IgG antibodies and neutrophils play an unexpected role

Researchers have identified a new pathological mechanism responsible for 10-20% of unexplained anaphylactic cases involving IgG antibodies that activate neutrophils, releasing harmful vasodilating mediators. This discovery may help improve diagnosis and treatment for patients with anaphylactic shock.