Thursday 16 May 2019

Teens with obesity find artificial intelligence coach helpful in weight-loss program

Researchers at Nemours Children's Health System have found that an artificial intelligence (AI) behavioral coach, nicknamed Tess (X2ai, Inc), is feasible and useful for behavioral counseling of adolescent patients in a weight management program. The study, published today in the journal Translational Behavioral Medicine, demonstrates adolescents' willingness and positive reaction to engaging in SMS text conversations with the chatbot technology that simulates human interactions.

* This article was originally published here

New security flaw in Intel chips could affect millions

Intel has revealed another hardware security flaw that could affects millions of machines around the world.

* This article was originally published here

Children who use asthma tracking app have better disease control and fewer hospital visits

An app that allows parents and doctors to monitor a child's asthma has a big impact on managing the disease. When families monitored symptoms with eAsthma Tracker and adjusted care accordingly, children had better asthma control and made fewer visits to the emergency department. Using the app also meant that children missed fewer days of school and parents took fewer days off work, improving quality of life. Results of the study were published online in the journal Pediatrics.

* This article was originally published here

Malnourished fruit flies preserve genital size to ensure reproductive success

In most animals, body size shrinks when food becomes scarce, but some parts are protected from shrinkage. In humans without enough food, the body becomes small, but the size of the head stays the same, hinting at biological mechanisms that act to preserve the all-important brain.

* This article was originally published here

New Horizons team publishes first Kuiper Belt flyby science results

NASA's New Horizons mission team has published the first profile of the farthest world ever explored, a planetary building block and Kuiper Belt object called 2014 MU69.

* 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

Video: How do plants communicate with each other?

Spring is in the air! It's time to mow the lawn and breathe in the smell of freshly cut grass.

* This article was originally published here

Microsoft alerts hospitals to fix potential security risk

Computer experts inside hospitals were working diligently on Wednesday to address a serious new security vulnerability in older versions of the Windows operating system, which is still used in many health care devices even though Microsoft hasn't actively supported the older software in years.

* This article was originally published here

NTSB: Autopilot was in use before Tesla hit semitrailer

A Tesla Model S involved in a fatal crash with a semitrailer in Florida March 1 was operating on the company's semi-autonomous Autopilot system, federal investigators have determined.

* This article was originally published here

Study paves way for better treatment of lingering concussion symptoms

A La Trobe University study has lifted the lid on the debilitating effects of persistent post-concussion symptoms (PCS) felt by many—10% of concussion-sufferers—after a knock to the head.

* This article was originally published here

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

Exploring people's perception of geometric features, personalities and emotions in videos with virtual humans

Researchers at Pontifical Catholic University of Rio Grande do Sul have recently carried out a study aimed at evaluating people's perceptions of geometric features, personalities and emotions presented in video sequences with virtual humans. Their study, outlined in a paper pre-published on arXiv, merges computer science tools with psychology research practices.

* This article was originally published here

Cancer drugs promote stem cell properties of colorectal cancer

Scientists from the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ) and the Mannheim University Medical Center have now discovered that a certain group of cancer drugs (MEK Inhibitors) activates the cancer-promoting Wnt signaling pathway in colorectal cancer cells. This can lead to the accumulation of tumor cells with stem cell characteristics that are resistant to many therapies and can lead to relapses. The researchers thus provide a possible explanation for why these drugs are not effective in colorectal cancer.

* This article was originally published here

Framework improves 'continual learning' for artificial intelligence

Researchers have developed a new framework for deep neural networks that allows artificial intelligence (AI) systems to better learn new tasks while "forgetting" less of what it has learned regarding previous tasks. The researchers have also demonstrated that using the framework to learn a new task can make the AI better at performing previous tasks, a phenomenon called backward transfer.

* This article was originally published here

Tester eyes unhackable claim on USB flash drive

When the unhackable turns hackable you know there will be lots of noise. Case in point: The eyeDisk USB flash drive. Passwords exposed in clear text were discovered.

* This article was originally published here

Energy-free superfast computing invented by scientists using light pulses

Superfast data processing using light pulses instead of electricity has been created by scientists.

* This article was originally published here

Calling attention to gender bias dramatically changes course evaluations

With growing evidence of gender bias on student course evaluations, a new intervention developed by Iowa State University researchers may help reduce bias against women instructors.

* This article was originally published here