Computer vision researchers have demonstrated they can use special light sources and sensors to see around corners or through gauzy filters, enabling them to reconstruct the shapes of unseen objects.
* This article was originally published here
Friday, 21 June 2019
NASA helps warn of harmful algal blooms in lakes, reservoirs
Harmful algal blooms can cause big problems in coastal areas and lakes across the United States. When toxin-containing aquatic organisms multiply and form a bloom, it can sicken people and pets, contaminate drinking water, and force closures at boating and swimming sites.
* This article was originally published here
* 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
* 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
* This article was originally published here
Engineers 3-D print flexible mesh for ankle and knee braces
Hearing aids, dental crowns, and limb prosthetics are some of the medical devices that can now be digitally designed and customized for individual patients, thanks to 3-D printing. However, these devices are typically designed to replace or support bones and other rigid parts of the body, and are often printed from solid, relatively inflexible material.
* This article was originally published here
* This article was originally published here
Acropolis Museum marks 10-year anniversary with new extension
Greece's Acropolis Museum has opened to the public a new section housing the remains of an ancient Athens neighbourhood to mark its 10-year-anniversary, organisers said Friday.
* This article was originally published here
* This article was originally published here
Robot circulatory system powers possibilities
Untethered robots suffer from a stamina problem. A possible solution: a circulating liquid—"robot blood"—to store energy and power its applications for sophisticated, long-duration tasks.
* This article was originally published here
* This article was originally published here
Spintronic memory cells for neural networks
In recent years, researchers have proposed a wide variety of hardware implementations for feed-forward artificial neural networks. These implementations include three key components: a dot-product engine that can compute convolution and fully-connected layer operations, memory elements to store intermediate inter and intra-layer results, and other components that can compute non-linear activation functions.
* This article was originally published here
* This article was originally published here
B chromosome first—mechanisms behind the drive of B chromosomes uncovered
The specific number of chromosomes is one of the defining characteristics of a species. Whilst the common fruit fly carries 8 chromosomes, the genome of bread wheat counts 42 chromosomes. In comparison, the human genome is made out of a total of 46 chromosomes. However, about 15% of all eukaryotic species additionally carry supernumerary chromosomes referred to as "B chromosomes". Other than the essential chromosomes of the genome, B chromosomes are expendable and often preferentially inherited. This leads to a transmission advantage for B chromosomes called "chromosome drive". To date, little knowledge exists about the mechanisms behind this phenomenon. Researchers from the Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) in Gatersleben have now been able to decipher the mechanisms behind the drive of B chromosomes in the goatgrass Aegilops speltoides. The novel insights in the workings of chromosome drive were recently published in New Phytologist.
* This article was originally published here
* This article was originally published here
Google rolled out fix for Nest cam look-through
Finders, weepers. That seemed to be a suitable tweak to the old saying, when the news hit that a former owner of a used Nest Indoor Cam could access the new owner's video feed.
* This article was originally published here
* This article was originally published here
California launches anti-illegal pot campaign
Marijuana shoppers are going to be getting a message from California regulators: Go legal.
* This article was originally published here
* This article was originally published here
Chronic hepatitis B infections in Europe on the rise since 2008
In 2017, the majority (58 percent) of the almost 27,000 newly reported hepatitis B cases in the European Union and European Economic Area were classified as chronic infections. This follows a consistent upward trend in reported chronic hepatitis B cases since 2008.
* This article was originally published here
* This article was originally published here
Rare recessive mutations pry open new windows on autism
Over the past decade, autism spectrum disorder has been linked to mutations in a variety of genes, explaining up to 30 percent of all cases to date. Most of these variants are de novo mutations, which are not inherited, affect just one copy of a gene, and are relatively easy to find. The lab of Timothy Yu, MD, Ph.D., at Boston Children's Hospital chose a road less travelled, tracking rare recessive mutations in which a child inherits two "bad" copies of a gene.
* This article was originally published here
* This article was originally published here
Burnout: Sleepless firefighters at risk of exhaustion and mental health conditions
Sleep disturbances and mental health challenges are putting close to half of America's firefighters at high risk of emotional fatigue and exhaustion, new research shows.
* This article was originally published here
* This article was originally published here
Multi-mobile (M2) computing system makes Android, iOS apps sharable on multiple devices
Computer scientists at Columbia Engineering have developed a new computing system that enables current, unmodified mobile apps to combine and share multiple devices, including cameras, displays, speakers, microphones, sensors, and GPS, across multiple smartphones and tablets. Called M2, the new system operates across heterogeneous systems, including Android and iOS, combining the functionality of multiple mobile systems into a more powerful one that gives users a seamless experience across the various systems.
* This article was originally published here
* This article was originally published here
Rot in peace: Sites lacking for whale corpses amid die-off
So many gray whales are dying off the U.S. West Coast that scientists and volunteers dealing with the putrid carcasses have an urgent request for coastal residents: Lend us your private beaches so these ocean giants can rot in peace.
* This article was originally published here
* This article was originally published here
Not always reaching your potential is okay, but overthinking it is a problem
Having aspirations helps us navigate life in a meaningful and fulfilling way, but it can also cause psychological distress when hopes are left unfulfilled.
* This article was originally published here
* This article was originally published here
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