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Jul 3, 2021
Scientists publish a how-to guide for creating mouse-human chimeric embryos
Posted by Quinn Sena in categories: biotech/medical, innovation
A year after University at Buffalo scientists demonstrated that it was possible to produce millions of mature human cells in a mouse embryo, they have published a detailed description of the method so that other laboratories can do it, too.
The ability to produce millions of mature human cells in a living organism, called a chimera, which contains the cells of two species, is critical if the ultimate promise of stem cells to treat or cure human disease is to be realized. But to produce those mature cells, human primed stem cells must be converted back into an earlier, less developed naive state so that the human stem cells can co-develop with the inner cell mass in a mouse blastocyst.
The protocol outlining how to do that has now been published in Nature Protocols by the UB scientists. They were invited to publish it because of the significant interest generated by the team’s initial publication describing their breakthrough last May.
Jul 3, 2021
Canada Day: Discovery of more unmarked graves fuel calls to cancel holiday
Posted by Quinn Sena in category: energy
The remains of 182 people in unmarked Indigenous graves were found on the eve of Canada Day.
Jul 3, 2021
‘Time Cells’ Identified in Our Brains Encode The Flow of Time, Scientists Say
Posted by Quinn Sena in category: neuroscience
How does the human brain keep track of the order of events in a sequence?
New research suggests that ‘time cells’ – neurons in the hippocampus thought to represent temporal information – could be the glue that sticks our memories together in the right sequence so that we can properly recall the correct order in which things happened.
Evidence for these kinds of sequence-tracking time cells was previously found in rats, where specific neuron assemblies are thought to support the recollection of events and the planning of action sequences – but less is known about how episodic memory is encoded in the human brain.
Jul 3, 2021
A Crystal Made Exclusively of Electrons – “Holy Grail” Wigner Crystals Observed for First Time
Posted by Quinn Sena in categories: particle physics, quantum physics
Researchers at ETH Zurich have succeeded in observing a crystal that consists only of electrons. Such Wigner crystals were already predicted almost ninety years ago but could only now be observed directly in a semiconductor material.
Crystals have fascinated people through the ages. Who hasn’t admired the complex patterns of a snowflake at some point, or the perfectly symmetrical surfaces of a rock crystal? The magic doesn’t stop even if one knows that all this results from a simple interplay of attraction and repulsion between atoms and electrons. A team of researchers led by Ataç Imamoğlu, professor at the Institute for Quantum Electronics at ETH Zurich, have now produced a very special crystal. Unlike normal crystals, it consists exclusively of electrons. In doing so, they have confirmed a theoretical prediction that was made almost ninety years ago and which has since been regarded as a kind of holy grail of condensed matter physics. Their results were recently published in the scientific journal Nature.
A decades-old prediction
Jul 3, 2021
WO2001057881A1 — Technical and theoretical specifications for warp drive technology
Posted by Quinn Sena in categories: innovation, space travel
Warp drive patent.
The present invention relates to the use of technical drive systems, which operate by the modification of gravitational fields. These drive systems do not depend on the emission of matter to create thrust but create a change in the curvature of space-time, in accordance with general relativity. This allows travel by warping space-time to produce an independent warp drive system. Differential electron flow through a body in rotation is directed so as to simultaneously pass through a said body in its direction of rotation and contrary to its direction of rotation so as to release a directed flow of gravitons.
Jul 3, 2021
NASA Might Use Magnetic Shield to Grow Life-Sustaining Atmosphere on Mars
Posted by Quinn Sena in category: space
Dipole shield could shield #Mars
The Martian atmosphere is a decimated shred of what it once was, thanks to the fact that a disappearing magnetic field allowed solar winds to pummel the red planet’s skies over millions of years. So naturally, one solution to making Mars more habitable may be to resurrect its magnetosphere — and it’s a crazy idea NASA scientists are actually looking into.
At Wednesday’s Planetary Science Vision 2050 Workshop at the NASA headquarters in Washington, D.C., NASA’s Planetary Science Division Director Jim Green spoke about how this magnetic shield would work.
Continue reading “NASA Might Use Magnetic Shield to Grow Life-Sustaining Atmosphere on Mars” »
Jul 3, 2021
Non-toxic supercapacitors go fully recyclable
Posted by Saúl Morales Rodriguéz in categories: materials, sustainability
3D-printed devices made from a biodegradable paper-like material could power the Internet of Things in a more sustainable way.
Jul 3, 2021
New gate optimization strategy could boost efficiency in trapped-ion quantum computers
Posted by Saúl Morales Rodriguéz in categories: computing, quantum physics
Protocol for performing two-qubit entangling gates trades laser power for speed with little loss of fidelity.