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New neurons continue to form in the adult human hippocampus: Study

A study in the journal Science presents compelling new evidence that neurons in the brain’s memory center, the hippocampus, continue to form well into late adulthood. The research from Karolinska Institutet in Sweden provides answers to a fundamental and long-debated question about the human brain’s adaptability.

The hippocampus is a brain region that is essential for learning and memory and involved in emotion regulation. Back in 2013, Jonas Frisén’s research group at Karolinska Institutet showed in a high-profile study that can form in the hippocampus of adult humans. The researchers then measured carbon-14 levels in DNA from , which made it possible to determine when the cells were formed.

First Step Towards an Artificial Human Genome Now Underway

As if sequencing a full human genome wasn’t tricky enough, scientists are now attempting to reconstruct our species’ genetic material from the ground up.

It’s an ambitious and controversial project called the Synthetic Human Genome (SynHG) project, and work has already begun on a proof-of-concept.

The goal of this crucial first step is to use the human genome blueprint to write the genetic code for a single, enormously long strand of DNA in just one of our chromosomes – making up approximately 2 percent of our total genome.

“There is only one interpretation of quantum mechanics” | David Deutsch FULL INTERVIEW

David Deutsch, known as the ‘father of quantum computing’, explains how accepting the reality of quantum mechanics means accepting the multiverse.

How are the branches of a multiverse different from each other?

With a free trial, you can watch David Deutsch debate infinity with George Ellis and Sara Walker at https://iai.tv/video/the-edge-of-the-universe?utm_source=You…of-reality.

The many-worlds interpretation of quantum mechanics says that all possible outcomes of quantum measurements are physically realised in different worlds. These many worlds have proved extremely contentious, with critics arguing that they are mere fantasy. In this exclusive interview, leading physicist David Deutsch explains the philosophy behind the many-worlds interpretation and argues that not only is it the best interpretation of quantum mechanics – it is the only interpretation.

#quantum #quantummechanics #quantumphysics #quantumcomputing.

David Deutsch is a theoretical physicist best known as the founding father of quantum computation and as a key figure and advocate for the many-worlds interpretation of quantum mechanics. Deutsch is a Visiting Professor of physics at the Centre for Quantum Computation and the Clarendon Laboratory, Oxford University. Interviewed by Charlie Barnett, Senior Producer at the IAI.

Continue reading ““There is only one interpretation of quantum mechanics” | David Deutsch FULL INTERVIEW” | >

“Uncharted Waters”: Large Hadron Collider Begins Colliding Oxygen For The First Time

For example, when studying heavier ion collisions and xenon-xenon collisions, scientists at ATLAS saw “jet quenching”, as high-energy particles lose energy as they negotiate the quark-gluon plasma. Jet quenching was not seen in proton-lead collisions, which formed a smaller quark-gluon plasma system.

“Theory predicts we should see the onset of jet quenching in oxygen–oxygen collisions,” Longo added. “If we observe even modest suppression, it could pin down the critical system size at which jet quenching begins.”

Also of interest in these studies is the “collective flow” seen in the collective motion of particles that emerge from the quark-gluon plasma. Studying oxygen collisions could help tell us more about this collective behavior, whilst also telling us about the geometrical structure of oxygen nuclei. Meanwhile, colliding neon could tell us about its structure too, thought to be roughly in the shape of a bowling pin. The shape itself could have an impact on the formation of quark-gluon plasma.

DNA Nanotubule‐Based Nanodevices with ATP‐Responsive Gating for Direct Cytosolic Delivery of Nucleic Acids and Proteins

Schematic illustration of two pathways for macromolecular therapeutics delivery: nanoparticle-adopted endocytosis (left) and DNA nanotubule-mediated cytosolic delivery (right). By bypassing conventio…

Inside baseball: The founder’s guide to funding health and science organizations

Investors sign hundreds of term sheets over their careers. Founders only do so a handful of times. When you’re raising money to bring your idea to life, there are a myriad of decisions you need to make — what sources of funding to pursue, how to structure your company, what timeline you should work towards. […]

OpenAI co-founder Sutskever sets up new AI company devoted to ‘safe superintelligence’

(AP) — Ilya Sutskever, one of the founders of OpenAI who was involved in a failed effort to push out CEO Sam Altman, said he’s starting a safety-focused artificial intelligence company.

Sutskever, a respected AI researcher who left the ChatGPT maker last month, said in a social media post Wednesday that he’s created Safe Superintelligence Inc. with two co-founders. The company’s only goal and focus is safely developing “superintelligence” — a reference to AI systems that are smarter than humans.

The company vowed not to be distracted by “management overhead or product cycles,” and under its business model, work on safety and security would be “insulated from short-term commercial pressures,” Sutskever and his co-founders Daniel Gross and Daniel Levy said in a prepared statement.