Friday 21 June 2019

Your brain activity can be used to measure how well you understand a concept

As students learn a new concept, measuring how well they grasp it has often depended on traditional paper and pencil tests. Dartmouth researchers have developed a machine learning algorithm, which can be used to measure how well a student understands a concept based on his or her brain activity patterns. The findings are published in Nature Communications.

* This article was originally published here

Copernicus Sentinel-1 images the largest delta in the Arctic

The Copernicus Sentinel-1 mission takes us over the Lena River Delta, the largest delta in the Arctic.

* This article was originally published here

Obesity has become the new normal but it's still a health risk

Nike's London store recently introduced a plus-sized mannequin to display its active clothing range which goes up to a size 32.

* This article was originally published here

Reforming pharmacy benefit manager practices may lead to drug cost savings

Efforts to control health care costs in the United States often focus on the listed prescription drug prices, but a perspective published by the Journal of the American Medical Association suggests that unregulated pharmacy benefit manager practices also may contribute to escalating expenses.

* This article was originally published here

Marshall Islanders 'sitting ducks' as sea level rises, says president

Marshall Islands President Hilda Heine stressed Friday the need for dramatic climate action and international support to ensure her people are not left as "sitting ducks" when sea levels inevitably rise.

* This article was originally published here

Women who declined medical care during hospital births report poor treatment overall

A new study involving University of Minnesota School of Public Health (SPH) researchers surveyed mothers nationwide and found many who declined care for themselves or their newborn babies during hospital births were more likely to report experiencing discrimination and other forms of poor treatment.

* This article was originally published here

Antibiotic resistance in spore-forming probiotic bacteria

New research has found that six probiotic Bacillus strains are resistant to several antibiotics. Genetic analysis of other Bacillus strains has shown genes that contribute to antibiotic resistance towards various types of drugs and methods in which they can still grow in their presence. The research is presented at ASM Microbe, the annual meeting of the American Society for Microbiology.

* This article was originally published here

Next-gen solar cells spin in new direction: Phosphorene shows efficiency promise

A nanomaterial made from phosphorus, known as phosphorene, is shaping up as a key ingredient for more sustainable and efficient next-generation perovskite solar cells (PSCs).

* This article was originally published here

Enhancing face recognition tools with generative face completion

Researchers at the USC Information Sciences Institute (ISI) in California have recently carried out a study investigating whether completing obstructed faces using artificial neural networks (ANN) can improve the accuracy of face recognition tools. Their study originated from the IARPA Odin research project, which is aimed at identifying true and false faces in images, ultimately to enhance the performance of biometric authentication tools.

* This article was originally published here

Researchers use facial quirks to unmask 'deepfakes'

After watching hours of video footage of former President Barack Obama delivering his weekly address, Shruti Agarwal began to notice a few quirks about the way Obama speaks.

* This article was originally published here

Detecting problems of the anti-bleeding system in 60 minutes

Various diseases can cause hemorrhages or thromboses, sometimes fatal, resulting in particular from complications during surgery. This may take the form of a dysfunction of the platelets (hemostasis), the blood cells that plug the holes in the damaged blood vessels. Researchers from the University of Geneva (UNIGE), the University of Franche-Comté (UFC) and the Etablissement français du Sang (Bourgogne Franche Comté), have developed a device called BlooDe to study the plugging capacity of platelets.

* This article was originally published here

Study: Lethal plastic trash now common in Greece's whales

A study of whales and dolphins that have washed up dead in Greece over a 20-year period has found alarmingly high levels of plastic trash—mostly bags—in the animals' stomachs, which can condemn them to a slow and painful death.

* This article was originally published here

How you feel about your home is more important than the size

Although home environments affect the way many feel which, in turn, has the potential to influence family relationships, researchers at BYU recently found that how individuals perceive the space (too crowded or too spread out) in their homes has more of an effect on family functioning than actual characteristics, such as the size of the house or number of bedrooms.

* This article was originally published here

Electron-behaving nanoparticles rock current understanding of matter

It's not an electron. But it sure does act like one.

* This article was originally published here

Perovskite solar cells tested for real-world performance—in the lab

It was only ten years ago that metal-halide perovskites were discovered to be photovoltaic materials. Today, perovskite solar cells are almost as efficient as the best conventional silicon ones, and there is much hope that they will become a highly efficient and low-cost alternative, as they can be manufactured by rather simple and fast methods like printing.

* This article was originally published here

Imaging results, health data combine in AI model to predict breast cancer

Women know the drill: Breast cancer is too commonly a cancer diagnosis to be ignored, as early detection could make a difference. While false positives may cause an enormous amount of undue stress, false negatives have an impact on how early a cancer is detected and subsequently treated.

* This article was originally published here

National emergency alerts potentially vulnerable to attack

On October 3, 2018, cell phones across the United States received a text message labeled "Presidential Alert." The message read: "THIS IS A TEST of the National Wireless Emergency Alert System. No action is needed."

* This article was originally published here