Friday, 21 June 2019

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

Algorithm quickly finds hidden objects in dense point clouds

A new MIT-developed technique enables robots to quickly identify objects hidden in a three-dimensional cloud of data, reminiscent of how some people can make sense of a densely patterned "Magic Eye" image if they observe it in just the right way.

* This article was originally published here

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

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

Exposure to others' suffering even worse than being shot at

We usually think that trauma from war is related to the fact that soldiers have been under constant threat of death. New research shows a slightly different picture.

* This article was originally published here

Hydrogen-natural gas hydrates harvested by natural gas

A hydrogen-natural gas blend (HNGB) can be a game changer only if it can be stored safely and used as a sustainable clean energy resource. A recent study has suggested a new strategy for stably storing hydrogen, using natural gas as a stabilizer. The research proposed a practical gas phase modulator based synthesis of HNGB without generating chemical waste after dissociation for the immediate service.

* This article was originally published here

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

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

A clear vision for cancer diagnosis

While reading an article about Sen. John McCain's glioblastoma diagnosis, Kavya Kopparapu was shocked to learn that the prognosis for this aggressive brain cancer has not improved over the past 30 years. With standard treatment, glioblastoma patients typically survive for only about 11 months after diagnosis, according to the American Brain Tumor Association.

* 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

SPFCNN-Miner: A new classifier to tackle class-unbalanced data

Researchers at Chongqing University in China have recently developed a cost-sensitive meta-learning classifier that can be used when the training data available is high-dimensional or limited. Their classifier, called SPFCNN-Miner, was presented in a paper published in Elsevier's Future Generation Computer Systems.

* This article was originally published here

Shaken and stirred: Scientists capture the deformation effect of shock waves on a material

Understanding how shock waves affect structures is crucial for advancements in material science research, including safety protocols and novel surface modifications. Using X-ray diffraction probes, scientists at the Institute of Materials Structure Science of KEK, Tokyo of Tech, Kumamoto University, and University of Tsukuba studied the deformation of polycrystalline aluminum foil when subjected to a laser-driven shock wave.

* This article was originally published here

New time-banking system utilizes blockchain tech to measure one's value to society

Citizens from the island of Aneityum in the Republic of Vanuatu are working with faculty from Binghamton University, State University of New York to test their true value as humans.

* 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

Tailor-made prosthetic liners could help more amputees walk again

Researchers at the University of Bath have developed a new way of designing and manufacturing bespoke prosthetic liners, in less than a day.

* This article was originally published here

Ariane 5's second launch of 2019

An Ariane 5 has delivered the T-16 and Eutelsat-7C telecom satellites into their planned orbits.

* This article was originally published here

Assembly of the human oral microbiome age 1 to 12

At the 97th General Session & Exhibition of the International Association for Dental Research (IADR), held in conjunction with the 48th Annual Meeting of the American Association for Dental Research (AADR) and the 43rd Annual Meeting of the Canadian Association for Dental Research (CADR), Ann Griffen, Ohio State University, Columbus, gave an oral presentation on "Assembly of the Human Oral Microbiome Age 1 to 12." The IADR/AADR/CADR General Session & Exhibition is held at the Vancouver Convention Centre West Building in Vancouver, BC, Canada from June 19-22, 2019.

* 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

From one brain scan, more information for medical artificial intelligence

MIT researchers have devised a novel method to glean more information from images used to train machine-learning models, including those that can analyze medical scans to help diagnose and treat brain conditions.

* This article was originally published here

Cities are key to saving monarch butterflies

It's easy to think of cities as being the enemy of nature. When we talk about escaping the skyscrapers and car horns, we have visions of breathing in fresh mountain air while hiking through forests in mind. But for Monarch butterflies, the busy cities we know could be key to their survival.

* This article was originally published here