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Aug 17, 2023

Brains with Alzheimer’s disease have subnormal levels of important dietary antioxidants

Posted by in categories: biotech/medical, education, food, neuroscience

Since this book is about what I consider intellectual subject matter, I think it’s relevant to keep brains in top shape and thought it would be important to share this. You probably know about this sort of thing but I didn’t know the specific nutrients needed and what was lacking in people with Alzheimer’s. Best wishes.


Alzheimer’s disease is a progressive neurodegenerative disease estimated to affect 6 million Americans and 33 million people worldwide. Large numbers of those affected have not yet been diagnosed.

A new study published in the Journal of Alzheimer’s Disease by a Virginia Tech Carilion School of Medicine faculty member shows that brain levels of dietary , zeaxanthin, lycopene, and vitamin E in those with Alzheimer’s disease are half those in normal brains. Higher dietary levels of lutein and zeaxanthin have been strongly linked to better cognitive functions and lower risk for dementia or Alzheimer’s disease.

Continue reading “Brains with Alzheimer’s disease have subnormal levels of important dietary antioxidants” »

Aug 17, 2023

An energy-efficient analog chip for AI inference

Posted by in category: robotics/AI

We’re just at the beginning of an AI revolution that will redefine how we live and work. In particular, deep neural networks (DNNs) have revolutionized the field of AI and are increasingly gaining prominence with the advent of foundation models and generative AI. But running these models on traditional digital computing architectures limits their achievable performance and energy efficiency. There has been progress in developing hardware specifically for AI inference, but many of these architectures physically split the memory and processing units. This means the AI models are typically stored in a discrete memory location, and computational tasks require constantly shuffling data between the memory and processing units. This process slows down computation and limits the maximum achievable energy efficiency.

Dunno if anyone has already posted this.


The chip showcases critical building blocks of a scalable mixed-signal architecture.

Aug 17, 2023

Scientists trap light inside a magnet

Posted by in categories: materials, quantum physics

A new study led by Vinod M. Menon and his group at the City College of New York shows that trapping light inside magnetic materials may dramatically enhance their intrinsic properties. Strong optical responses of magnets are important for the development of magnetic lasers and magneto-optical memory devices, as well as for emerging quantum transduction applications.

In their new article in Nature, Menon and his team report the properties of a layered magnet that hosts strongly bound excitons—quasiparticles with particularly strong optical interactions. Because of that, the material is capable of trapping light—all by itself.

As their experiments show, the optical responses of this material to magnetic phenomena are orders of magnitude stronger than those in typical magnets. “Since the light bounces back and forth inside the magnet, interactions are genuinely enhanced,” said Dr. Florian Dirnberger, the lead-author of the study.

Aug 17, 2023

Scientists Believe Light Speed Travel Is Possible. Here’s How

Posted by in category: space travel

A functioning warp drive would allow humans to reach the far ends of the cosmos in the blink of an eye.

Aug 17, 2023

An enormous study links intelligence and personality in surprising ways

Posted by in category: futurism

Are fools happy and geniuses disorganized — or is that a mistaken stereotype? A study of two million people yields intriguing insights.

Aug 17, 2023

Can Cells Think? The Magic of Developmental Biology

Posted by in categories: biological, cosmology, evolution, neuroscience

The John Templeton Foundation recently invited biologist Michael Levin to speak to a small group about the presence of agency and cognition in the most fundamental forms of life, even at the levels of cells and tissues. In the recorded video, Dr. Levin, who directs a developmental biology lab at Tufts University, discusses with Philip Ball, a science writer and author of the newly published Book of Minds: How to Understand Ourselves and Other Beings.

Founded in 1987, the John Templeton Foundation supports research and dialogue on the deepest and most perplexing questions facing humankind. The Foundation funds work on subjects ranging from black holes and evolution to creativity, forgiveness, and free will. It also encourages civil, informed dialogue among scientists, philosophers, theologians, and the public at large.

Continue reading “Can Cells Think? The Magic of Developmental Biology” »

Aug 17, 2023

Webb Confirms Two Very Luminous Galaxies in Early Universe

Posted by in category: space

During the first 500 million years of cosmic history, the first stars and galaxies formed, seeding the Universe with heavy elements and eventually reionizing the intergalactic medium.

Aug 17, 2023

Organoids shown to speed glycoengineered vaccine development

Posted by in categories: biotech/medical, chemistry, engineering

Testing the efficacy of a vaccine candidate is typically a long process, with the immune response of an animal model taking around two months.

A multi-institution team, led by Matt DeLisa, the William L. Lewis Professor in the Smith School of Chemical Biomolecular Engineering, at Cornell Engineering, is developing a method that is more than an order of magnitude faster.

Using a biomaterials-based organoid, developed in the lab of former Cornell professor Ankur Singh, now at the Woodruff School of Mechanical Engineering at the Georgia Institute of Technology, the team was able to assess the strength of the immune response in just days.

Aug 17, 2023

Cervavac, India’s own HPV vaccine for cervical cancer, is now in pvt hospitals: Who should get it first? What’s its efficacy?

Posted by in category: biotech/medical

Plans are already under way to roll it out for the public sector too by the end of the year. With a 2–3 million dose production capacity, a single dose of the two-dose vial is priced at Rs 2,000 currently. Vaccine effective against high risk types of the cancer-causing virus, say oncologists.

Aug 17, 2023

Scientists Have Summoned a Massless Demon Particle

Posted by in categories: materials, particle physics

It’ll help unlock the inner workings of superconductors.