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Novel physical reservoir computing device mimics human synaptic behavior for efficient edge AI processing

Researchers at Tokyo University of Science have developed a solar cell-based optoelectronic device that mimics human synapses for efficient edge AI processing.


Artificial intelligence (AI) is becoming increasingly useful for the prediction of emergency events such as heart attacks, natural disasters, and pipeline failures. This requires state-of-the-art technologies that can rapidly process data. In this regard, reservoir computing, specially designed for time-series data processing with low power consumption, is a promising option.

It can be implemented in various frameworks, among which physical reservoir computing (PRC) is the most popular. PRC with optoelectronic artificial synapses (junction structures that permit a nerve cell to transmit an electrical or chemical signal to another cell) that mimic human synaptic elements are expected to have unparalleled recognition and processing capabilities akin to the human visual system.

However, PRC based on existing self-powered optoelectronic synaptic devices cannot handle time-series data across multiple timescales, present in signals for monitoring infrastructure, natural environment, and health conditions.

New gene drive reverses insecticide resistance in pests… then disappears

Insecticides have been used for centuries to counteract widespread pest damage to valuable food crops. Eventually, over time, beetles, moths, flies and other insects develop genetic mutations that render the insecticide chemicals ineffective.

Escalating resistance by these mutants forces farmers and vector control specialists to ramp up use of poisonous compounds at increasing frequencies and concentrations, posing risks to human health and damage to the environment since most insecticides kill both ecologically important insects as well as pests.

To help counter these problems, researchers recently developed powerful technologies that genetically remove insecticide-resistant variant genes and replace them with genes that are susceptible to pesticides. These gene-drive technologies, based on CRISPR gene editing, have the potential to protect valuable crops and vastly reduce the amount of chemical pesticides required to eliminate pests.

Researchers discover a new face-detecting brain circuit

Scientists at the National Institutes of Health (NIH) have uncovered a brain circuit in primates that rapidly detects faces. The findings help not only explain how primates sense and recognize faces, but could also have implications for understanding conditions such as autism, where face detection and recognition are often impaired from early childhood.

The newly discovered circuit first engages an evolutionarily ancient part of the brain called the superior colliculus, which can then trigger the eyes and head to turn for a better look. This better view enables different brain areas in the to engage in more complex facial recognition. The study was published in the journal Neuron.

“Quick recognition of faces is a key skill in humans and other primates,” said Richard Krauzlis, Ph.D., of NIH’s National Eye Institute (NEI) and senior author of the study.

Nationwide IV fluid shortage could change how hospitals manage patient hydration

Hospitals around the country are conserving critical intravenous fluid supplies to cope with a shortage that may last months. Some hospital administrators say they are changing how they think about IV fluid hydration altogether.

Hurricane Helene, which hit North Carolina in September, wrecked a Baxter International facility that produces 60% of the IV fluids used in the U.S., according to the American Hospital Association.

The company was forced to stop production and is rationing its products. In an update posted Nov. 7, Baxter said its North Cove facility had resumed producing some IV fluids. In an email to KFF Health News, the company wrote that customers will be able to order normal quantities of “certain IV solutions products” by the end of the year, but there is no timeline for when the North Cove facility will be back to prehurricane production levels.

Top 5 AI Therapists in 2025

As we move into 2025, mental health continues to be a vital aspect of overall well-being in an increasingly fast-paced and complex world.


- CBT-based exercises that help users manage anxiety, depression, and emotional stress.

- Daily check-ins with an AI chatbot to track moods and thoughts, enabling users to gain insights into their emotional health.

- Progress tracking to help users monitor improvements and identify recurring mental health challenges.

Scientists use ‘sleep age’ to infer longterm health

Numbers tell a story. From your credit score to your age, metrics predict a variety of outcomes, whether it’s your likelihood to get a loan or your risk for heart disease. Now, Stanford Medicine researchers have described another telling metric — one that can predict mortality. It’s called sleep age.

Sleep age is a projected age that correlates to one’s health based on their quality of sleep. So for instance, if you analyze the sleep characteristics of dozens of 55-year-olds and average them out, you’ll have an idea of what sleep looks like at that age. For instance, someone who’s 55 and sleeps soundly through the night with good quality REM cycles could, theoretically, might have a sleep age of 45.

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