Friday, 21 June 2019

Applying active inference body perception to a humanoid robot

A key challenge for robotics researchers is developing systems that can interact with humans and their surrounding environment in situations that involve varying degrees of uncertainty. In fact, while humans can continuously learn from their experiences and perceive their body as a whole as they interact with the world, robots do not yet have these capabilities.

* This article was originally published here

PizzaGAN gets the picture on how to make a pizza

Is nothing sacred? Who would dare to even attempt to talk about a machine-learning experiment that results in the perfect (gasp) pizza? It is difficult to contemplate, but a research quintet did not shy away from trying, and they worked to teach a machine how to make a great pie.

* This article was originally published here

Structural development of the brain

In a recent study published in The Journal of Neuroscience, researchers reveal how the basic structure of the brain is formed.

* 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

2018 to 2019 influenza season in U.S. was longest in 10 years

In the United States, the 2018 to 2019 influenza season was of moderate severity and lasted 21 weeks, according to research published in the June 21 issue of the U.S. Centers for Disease Control and Prevention Morbidity and Mortality Weekly Report.

* 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

Scientists map huge undersea fresh-water aquifer off US Northeast

In a new survey of the sub-seafloor off the U.S. Northeast coast, scientists have made a surprising discovery: a gigantic aquifer of relatively fresh water trapped in porous sediments lying below the salty ocean. It appears to be the largest such formation yet found in the world. The aquifer stretches from the shore at least from Massachusetts to New Jersey, extending more or less continuously out about 50 miles to the edge of the continental shelf. If found on the surface, it would create a lake covering some 15,000 square miles. The study suggests that such aquifers probably lie off many other coasts worldwide, and could provide desperately needed water for arid areas that are now in danger of running out.

* This article was originally published here

Dental microwear provides clues to dietary habits of lepidosauria

High-resolution microscopic images of the surface of dental enamel of lepidosauria, which is a subclass of reptile including monitor lizards, iguanas, lizards and tuatara, allow scientists to determine their dietary habits. The enamel wear patterns reveal significant differences between carnivores and herbivores, but also allow finer distinctions, such as between algae-, fruit-, and mollusk-eating species. These findings are the result of research by a team led by scientists at Johannes Gutenberg University Mainz (JGU). They point out that it has hitherto been difficult to make such fine distinctions between dietary behavior on the basis of dental or skeletal remains alone, particularly in the case of extinct species, because in many reptiles the teeth are of similar shape.

* This article was originally published here

Eat like the locals: How scurvy undid last crusader king

He was the last of the crusader kings who was thought to have died of the plague as he made one last—rather roundabout—attempt to recover the Holy Land for the Christianity.

* This article was originally published here

Researchers see around corners to detect object shapes

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

This assistive robot is controlled via brain-computer interface

Researchers at the University of Cassino and Southern Lazio, in Italy, have recently developed a cutting-edge architecture that enables the operation of an assistive robot via a P300-based brain computer interface (BCI). This architecture, presented in a paper pre-published on arXiv, could finally allow people with severe motion disabilities to perform manipulation tasks, thus simplifying their lives.

* 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

Artificial intelligence learns to recognize nerve cells by their appearance

Is it possible to understand the brain? Science is still far from answering this question. However, since researchers have started training artificial intelligence on neurobiological analyses, it seems at least possible to reconstruct the cellular structure of a brain. New artificial neural networks developed by the Max Planck Institute of Neurobiology and Google AI can now even recognize and classify nerve cells independently based on their appearance.

* 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

Using game theory to model poisoning attack scenarios

Poisoning attacks are among the greatest security threats for machine learning (ML) models. In this type of attack, an adversary tries to control a fraction of the data used to train neural networks and injects malicious data points to hinder a model's performance.

* 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

Miracle machine makes heroic rescues and leaves patients in limbo

The latest miracle machine in modern medicine—whose use has skyrocketed in recent years—is saving people from the brink of death: adults whose lungs have been ravaged by the flu; a trucker who was trapped underwater in a crash; a man whose heart had stopped working for an astonishing seven hours.

* This article was originally published here

How you lock your smartphone can reveal your age: study

Older smartphone users tend to rely more on their phones' auto lock feature compared to younger users, a new UBC study has found. They also prefer using PINs over fingerprints to unlock their phones.

* This article was originally published here