Lifeboat Foundation

A water-activated disposable paper battery is presented in a proof-of-principle study in Scientific Reports. The authors suggest that it could be used to power a wide range of low-power, single-use disposable electronics—such as smart labels for tracking objects, environmental sensors and medical diagnostic devices—and minimize their environmental impact.

The battery, devised by Gustav Nyström and colleagues, is made of at least one cell measuring one centimeter squared and consisting of three inks printed onto a rectangular strip of paper. Sodium chloride salt is dispersed throughout the strip of paper and one of its shorter ends has been dipped in wax. An ink containing graphite flakes, which acts as the positive end of the battery (cathode), is printed onto one of the flat sides of the paper while an ink containing zinc powder, which acts as the negative end of the battery (anode), is printed onto the reverse side of the paper. Additionally, an ink containing graphite flakes and carbon black is printed on both sides of the paper, on top of the other two inks. This ink connects the positive and negative ends of the battery to two wires, which are located at the wax-dipped end of the paper.

When a small amount of water is added, the salts within the paper dissolve and charged ions are released. These ions activate the battery by dispersing through the paper, resulting in zinc in the ink at the negative end of the battery releasing electrons. Attaching the wires to an electrical device closes the circuit so that electrons can be transferred from the negative end—via the graphite and carbon black-containing ink, wires and device—to the positive end (the graphite-containing ink) where they are transferred to oxygen in the surrounding air. These reactions generate an electrical current that can be used to power the device.

A research group from the Graduate School of Informatics, Nagoya University, has taken a big step towards creating a neural network with metamemory through a computer-based evolution experiment. Their paper appears in Scientific Reports.

In recent years, there has been rapid progress in designing artificial intelligence technology using neural networks that imitate brain circuits. One goal of this field of research is understanding the evolution of metamemory to use it to create artificial intelligence with a human-like mind.

Metamemory is the process by which we ask ourselves whether we remember what we had for dinner yesterday and then use that memory to decide whether to eat something different tonight. While this may seem like a simple question, answering it involves a complex process. Metamemory is important because it involves a person having knowledge of their own memory capabilities and adjusting their behavior accordingly.

A novel bioremediation technology for cleaning up per-and polyfluoroalkyl substances, or PFAS, chemical pollutants that threaten human health and ecosystem sustainability, has been developed by Texas A&M AgriLife researchers. The material has potential for commercial application for disposing of PFAS, also known as “forever chemicals.”

Published July 28 in Nature Communications, the research was a collaboration of Susie Dai, Ph.D., associate professor in the Texas A&M Department of Plant Pathology and Microbiology, and Joshua Yuan, Ph.D., chair and professor in Washington University in St. Louis Department of Energy, Environmental and Chemical Engineering, formerly with the Texas A&M Department of Plant Pathology and Microbiology.

Removing PFAS contamination is a challenge

Continue reading “New bioremediation material can clean ‘forever chemicals’” »

The lab will work in areas such as quantum computing, explainable artificial intelligence (AI) that presents data in a manner that can be understood by humans, and Metaverse, a virtual world where people can connect through their digital avatars.

Tech Mahindra already has 10 Makers Lab across the world and the new unit at Mahindra University will be the 11th facility globally and second in Hyderabad, said the company.

“With the launch of Makers Lab, we will provide many talented and skilled individuals, with the opportunity to progress for a greater cause,” said CP Gurnani, MD & CEO, Tech Mahindra.

IT major Tech Mahindra (TechM) and Mahindra University have signed a memorandum of understanding (MoU) to set up a new ‘Makers Lab’ for research and development. The lab will work in areas such as quantum computing, explainable artificial intelligence (AI) that presents data in a manner that can be understood by humans, and Metaverse, a virtual world where people can connect through their digital avatars.

Tech Mahindra already has 10 Makers Lab across the world and the new unit at Mahindra University will be the 11th facility globally and second in Hyderabad, said the company.

“With the launch of Makers Lab, we will provide many talented and skilled individuals, with the opportunity to progress for a greater cause,” said CP Gurnani, MD & CEO, Tech Mahindra.

What do we know about cortical columns? A neuroscience (and artificial intelligence) discussion with Jeff Hawkins of Numenta.

Facebook.

Part of the cognitive neuroscience bitesize series. This is a follow-up of ‘basics of fMRI’ that considers exciting developments in mapping the human connect…

I promise you: this post is going to tell a scientifically coherent story that involves all five topics listed in the title. Not one can be omitted.

My story starts with a Zoom talk that the one and only Lenny Susskind delivered for the Simons Institute for Theory of Computing back in May. There followed a panel discussion involving Lenny, Edward Witten, Geoffrey Penington, Umesh Vazirani, and your humble shtetlmaster.

Continue reading “On black holes, holography, the Quantum Extended Church-Turing Thesis, fully homomorphic encryption, and brain uploading” »

Dr. Arye Elfenbein, MD, PhD, is the Co-Founder of Wildtype (https://www.wildtypefoods.com/), a biotechnology company which produces cultured seafood (with a focus on cultivated Pacific salmon) from fish cells, sustainably and cost effectively, with the nutritional benefits, but without common contaminants such as mercury, microplastics, antibiotics, or pesticides, and without relying on commercial fishing or fish farming.

Born in Israel and raised in Australia, Dr. Elfenbein combines his deep passion for medicine and unique childhood connection to the ocean to fuel Wildtype’s health and environmental mission.

Continue reading “Dr. Arye Elfenbein, MD, PhD — Co-Founder, Wildtype — Building A Better Food System” »