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Aug 5, 2023

Dopamine Neurons More Diverse than Previously Thought

Posted by in categories: biotech/medical, genetics, neuroscience

Dopamine is a type of neurotransmitter that can provide an intense feeling of reward. It has been a long-standing assumption that most, if not all, dopamine neurons solely respond to rewards or reward-predicting cues. However, a study in mice led by researchers at Northwestern University reveals dopamine may also control movements. The researchers uncovered that one genetic subtype fires when the body moves and that these neurons do not respond to rewards at all.

The findings are published in Nature Neuroscience in an article titled, “Unique functional responses differentially map onto genetic subtypes of dopamine neurons,” and shed new light on the brain which may lead to new research on Parkinson’s disease, which is characterized by the loss of dopamine neurons yet affects the motor system.

“Dopamine neurons are characterized by their response to unexpected rewards, but they also fire during movement and aversive stimuli,” the researchers wrote. “Dopamine neuron diversity has been observed based on molecular expression profiles; however, whether different functions map onto such genetic subtypes remains unclear. In this study, we established that three genetic dopamine subtypes within the substantia nigra pars compacta, characterized by the expression of Slc17a6 (Vglut2), Calb1, and Anxa1, each have a unique set of responses to rewards, aversive stimuli, and accelerations and decelerations, and these signaling patterns are highly correlated between somas and axons within subtypes.”

Aug 5, 2023

Police use drone to find missing person with dementia

Posted by in categories: biotech/medical, drones, engineering, neuroscience

The device was equipped with infrared technology.

A police drone equipped with infrared capabilities has risen as a hero in the search for a missing person with dementia that disappeared from a Delta hospital on July 29. Delta is a city located in British Columbia, Canada.

This is according to a report by Global News published on Wednesday.

Continue reading “Police use drone to find missing person with dementia” »

Aug 5, 2023

This new robot cleans solar panels without using any water

Posted by in categories: robotics/AI, solar power, sustainability

It reduces water wastage and carbon emissions.

“When it comes to photovoltaics, dust is the enemy. This is not a trivial concept, even if it may seem so at first glance; actually, the problem of soiling – the accumulation of dust, dirt or sand on PV panels – can decrease, sometimes significantly, the performance of solar power systems,” stated an Enel Green Power press release published on Friday.

Desert areas

Continue reading “This new robot cleans solar panels without using any water” »

Aug 5, 2023

China’s top SUV maker to add ChatGPT-like bot into cars

Posted by in categories: robotics/AI, transportation

Great Wall Motor will use Baidu’s Ernie 3.5 foundational language model which rivals OpenAI’s ChatGPT4.

Marking the entry of AI systems into mass-market cars, Chinese automaker Great Wall Motor (GWM) is set to integrate Baidu’s ChatGPT-like AI system, which enables conversation between driver and car.

According to South China Morning Post (SCMP). GMW has partnered with technology firm Baidu to produce automobiles integrated with the latter’s chatbot tool, Ernie Bot, bolstering a push to make cars more intelligent and user-friendly.

Aug 5, 2023

Meta to launch AI-powered chatbots with ‘personas’ in September

Posted by in category: robotics/AI

Mark Zuckerberg is set to enter the AI space and join the AI hype by launching chatbots on Facebook’s social media platforms.

With tech giant companies joining the artificial intelligence race to keep up with the new technology demand, Meta’s owner is all set to launch a variety of AI-backed chatbots.

Financial Times (FT) reported earlier today (2 Aug 2023) that the chatbots will launch as soon as next month. With the ambition to boost engagement, the tech giant has been designing new persona-based chatbot prototypes that can have humanlike discussions with its nearly four billion users.

Aug 5, 2023

Elon Musk says X will keep ad revenue from content creators who don’t have a Blue premium subscription

Posted by in category: Elon Musk

“The ad money will otherwise be kept by X if you are not an X Premium (Blue) subscriber,” Musk said in a post.

To be eligible for the program, creators also need to be at least 18 years old, have a minimum of 500 followers, and have 15 million or more “organic impressions” on posts within the last three months.

The price of an X premium subscription starts at $8 per month, or $84 a year, and it gives users access to extra features such as “Edit.”

Aug 5, 2023

Tomorrow Bio

Posted by in category: biotech/medical

At Tomorrow Bio, we use the latest technology to preserve you for however long it takes until medical technology can extend your life.

Aug 5, 2023

Photonic Computing System Rethinks How to Power Familiar AI Tool

Posted by in category: robotics/AI

Researchers from MIT have demonstrated a photonics-based computing system that could lead to machine-learning programs several orders of magnitude more powerful than the one behind ChatGPT. The researchers reported a greater than 100-fold improvement in energy efficiency and a 25-fold improvement in compute density — a measure of system power — over state-of-the-art digital computers for machine learning.

In the near term, the researchers’ experimental, laser-based system could be further developed to improve these metrics by two more orders of magnitude, the researchers said.

Aug 5, 2023

Future cities: Urban planners get creative | DW Documentary

Posted by in categories: climatology, education, robotics/AI, sustainability

The future of cities as seen by architects and urban planners. Future cities: Urban planners get creative | DW DocumentaryYOUTUBE.COMFuture cities: Urban planners get creative | DW Documentary.


Will the cities of the future be climate neutral? Might they also be able to actively filter carbon dioxide out of the air? Futurologist Vincente Guallarte thinks so. In fact, he says, our cities will soon be able to absorb CO2, just like trees do.

Continue reading “Future cities: Urban planners get creative | DW Documentary” »

Aug 5, 2023

Unleashing Photonic Power: Groundbreaking Advancements in Optical Computing

Posted by in categories: materials, robotics/AI

In a breakthrough for optical computing, researchers developed a nanosecond-scale volatile modulation scheme integrating a phase-change material.

Technological advancements such as autonomous driving and computer vision have spurred a significant increase in demand for computational power. Optical computing, characterized by its high throughput, energy efficiency, and low latency, has attracted significant interest from both academia and industry. However, current optical computing chips are hampered by their power consumption and size, which limit the scalability of optical computing networks.

Nonvolatile integrated photonics has emerged to address these issues, offering optical computing devices the ability to perform in-memory computing while operating with zero static power consumption. Phase-change materials (PCMs), with their high refractive index contrast between different states and reversible transitions, have become promising candidates for enabling photonic memory and nonvolatile neuromorphic photonic chips. This makes PCMs ideally suited for large-scale nonvolatile optical computing chips.