Monday 20 May 2019

Researchers find way to build potassium-oxygen batteries that last longer

Researchers have built a more efficient, more reliable potassium-oxygen battery, a step toward a potential solution for energy storage on the nation's power grid and longer-lasting batteries in cell phones and laptops.

* This article was originally published here

Do family members belong in ICU during procedures? Study finds clinicians mixed on practice

Do family members of loved ones who are critically ill and being treated in an intensive care unit at a hospital belong there when clinicians are performing bedside procedures? A new study from Intermountain Healthcare researchers finds many critical care clinicians have conflicting feelings about the practice.

* This article was originally published here

Just like toothpaste: Fluoride radically improves the stability of perovskite solar cells

Solar cells made of perovskite hold much promise for the future of solar energy. The material is cheap, easy to produce and almost as efficient as silicon, the material traditionally used in solar cells. However, perovskite degrades quickly, severely limiting its efficiency and stability over time. Researchers from Eindhoven University of Technology, energy research institute DIFFER, Peking University and University of Twente have discovered that adding a small amount of fluoride to the perovskite leaves a protective layer, increasing stability of the materials and the solar cells significantly. The solar cells retain 90 percent of their efficiency after 1000 hours operation at various extreme testing conditions. The findings are published today in the leading scientific journal Nature Energy.

* This article was originally published here

New computer-based predictive tool more accurately forecasts outcomes for respiratory patients

Are electronic health records and computer calculations a better, more accurate way to predict clinical outcomes for patients with chronic obstructive pulmonary disease?

* This article was originally published here

Shedding light on cancer metabolism in real-time with bioluminescence

EPFL scientists have invented a new way to quantify—in real-time—glucose metabolism of cancerous tumors by making them bioluminesce. This new light probe is not radioactive and works on living organisms such as mice that carry the tumor cells. The technique requires tagged tumor cells, two jabs and a camera. The results are published in Nature Methods.

* This article was originally published here

PAL: A wearable system for context-aware health and cognition support

Researchers at MIT Media Lab have developed a wearable platform that provides real-time, personalized, and context-aware health and cognition support. Their system, called personalized active learner (PAL), was presented in a paper pre-published on arXiv.

* This article was originally published here

Studies: Benralizumab not effective reducing exacerbations in moderate to very severe COPD

More than 15.3 million people in the U.S. suffer from chronic obstructive pulmonary disease (COPD), which is the third leading cause of death in this country, according to the American Lung Association. Patients often experience potentially life-threatening exacerbations, which can include days-long flare-ups of symptoms including shortness of breath that occur when the airways narrow from muscle tightness, swelling and mucus.

* This article was originally published here