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Feb 21, 2017

Study offers novel principle to reroute neurons for brain repair

Posted by in categories: biotech/medical, life extension, neuroscience

Restorative neuroscience, the study to identify means to replace damaged neurons and recover permanently lost mental or physical abilities, is a rapidly advancing scientific field considering our progressively aging society. Redirecting immature neurons that reside in specific brain areas towards the sites of brain damage is an appealing strategy for the therapy of acute brain injury or stroke. A collaborative effort between the Center for Brain Research of Medical University of Vienna and the National Brain Research Program of Hungary/Semmelweis University in Budapest revealed that some mature neurons are able to reconfigure their local microenvironment such that it becomes conducive for adult-born immature neurons to extensively migrate. Thus, a molecular principle emerges that can allow researchers to best mobilize resident cellular reserves in the adult brain and guide immature neurons to the sites of brain damage.

The adult brain has limited capacity of self-repair.

In the aging Western society, acute brain damage and chronic neurodegenerative conditions (e.g. Alzheimer’s and Parkinson’s diseases) are amongst the most debilitating diseases affecting hundreds of millions of people world-wide. Nerve cells are particularly sensitive to microenvironmental insults and their loss clearly manifests as neurological deficit. Since the innate ability of the adult human brain to regenerate is very poor and confined to its few specialized regions, a key question in present-day neurobiology is how to establish efficient strategies that can replace lost neurons, guide competent cells to the sites of injury and facilitate their functional integration to regain lost functionality. “Cell replacement therapy” thus offers frontline opportunities to design potent therapeutic interventions.

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Feb 21, 2017

One-Step Optogenetics for Hacking the Nervous System

Posted by in categories: biotech/medical, genetics

This is one breakthrough we need badly to help finally solve Dystonia, and other Central Nervous System disorders and diseases.


Researchers squeeze a three-step optogenetics process into one nifty probe and demonstrate it in mice.

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Feb 21, 2017

Researchers Validate Bipolar Candidate Gene In Mice

Posted by in category: neuroscience

Researchers have shown that mice without the gene for PLCγ1 in their forebrains exhibit manic-like behaviors.

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Feb 21, 2017

ESA Satellite Spots Brightest Known Pulsar

Posted by in category: space

ESA’s XMM-Newton satellite has detected the most ultra x-ray bright and most distant pulsar yet known.

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Feb 21, 2017

Proposed test would offer strongest evidence yet that the quantum state is real

Posted by in categories: information science, quantum physics

(Phys.org)—Physicists are getting a little bit closer to answering one of the oldest and most basic questions of quantum theory: does the quantum state represent reality or just our knowledge of reality?

George C. Knee, a theoretical physicist at the University of Oxford and the University of Warwick, has created an algorithm for designing optimal experiments that could provide the strongest evidence yet that the quantum state is an ontic state (a state of ) and not an epistemic state (a state of knowledge). Knee has published a paper on the new strategy in a recent issue of the New Journal of Physics.

While physicists have debated about the nature of the quantum state since the early days of quantum theory (with, most famously, Bohr being in favor of the ontic interpretation and Einstein arguing for the epistemic one), most modern evidence has supported the view that the quantum state does indeed represent reality.

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Feb 21, 2017

Quantum matter — shaken, but not stirred

Posted by in category: quantum physics

A team of researchers led by physics professor Immanuel Bloch has experimentally realized an exotic quantum system which is robust to mixing by periodic forces (Nature Physics, “Periodically driving a many-body localized quantum system”).

martini

When James Bond asks the barkeeper for a Martini (“shaken, not stirred”), he takes it for granted that the ingredients of the drink are miscible. If he were to place the order in a bar in the quantum realm, however, Agent 007 might be in for a surprise!

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Feb 21, 2017

NI Science Festival

Posted by in categories: biological, computing, food, neuroscience, quantum physics, science, space

Combines, space, poetry, optics, stories, TV, cognitive computing, atomic food safety, astrophysics and quantum biology in a fun-packed programme for everyone.

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Feb 21, 2017

Quantum Systems, Channels, Information: A Mathematical Introduction [Repost]

Posted by in categories: computing, encryption, mathematics, quantum physics

Published: 2012/11/01 | ISBN: 311027325X | PDF | 349 pages | 12.06 MB

The subject of this book is theory of quantum system presented from information science perspective. The central role is played by the concept of quantum channel and its entropic and information characteristics. Quantum information theory gives a key to understanding elusive phenomena of quantum world and provides a background for development of experimental techniques that enable measuring and manipulation of individual quantum systems. This is important for the new efficient applications such as quantum computing, communication and cryptography. Research in the field of quantum informatics, including quantum information theory, is in progress in leading scientific centers throughout the world. This book gives an accessible, albeit mathematically rigorous and self-contained introduction to quantum information theory, starting from primary structures and leading to fundamental results and to exiting open problems.

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Feb 21, 2017

Time crystals: how scientists created a new state of matter

Posted by in category: futurism

Scientists theorised, disproved, revamped and finally created a bizarre new form of matter in just five years.

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Feb 21, 2017

Pres. Trump Chooses Science Advisor

Posted by in categories: chemistry, climatology, military, physics, science, space

Congrats Dr. Happer.


I’ve been waiting to find out who will be Pres. Trump’s science adviser. It appears to be physicist Dr. William Happer, a physicist currently teaching at Princeont University, and former Director of the U.S. Department of Energy’s Office of Science from 1991–1993. He’s no slouch as a scientist. His work for the Air Force on the sodium guidestar laser platform for the military’s missile defense program provided information on the tropopause layer in the upper atmosphere, which is where atmospheric wave fronts distort both starlight and laser emissions, and where heat either begins to leak into space or does not, depending on how much and what kind of gas is blocking heat radiation.

The tropopause is the boundary between the troposphere, where we live and where weather takes place, and the stratosphere. The layers above that are the stratosphere, where stratocirrus clouds form as floating clouds of ice, the mesosphere, the thermosphere and the top, very thin layer, the exosphere. Beyond that is space.

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