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Jul 5, 2019

T Cells Infiltrate the Aging Brain

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

As published in a recent study, researchers have discovered that neural stem cells are impeded by the invasion of T cells, immune cells that are not normally present in the neural stem cell niche.

The neural stem cell niches

Our brains contain neural stem cells (NSCs); like their name suggests, these cells are responsible for the formation of new neurons within the brain. This process, which continues throughout life, is known as neurogenesis. These stem cells live in particular niches, which contain a panoply of different cell types, including stem cells in different phases of development and multiple types of immune cells. However, the researchers discovered a startling fact: the brains of older mice contain many specific immune cells known as T cells, while the brains of younger mice contain very few – and, as the study explains, this is true for humans as well.

Jul 5, 2019

Magnets shown to create more power in electrical generators

Posted by in category: biotech/medical

Electric generators have a plethora of uses—ranging from automotive to aircraft to microgrids. There is currently a strong desire to reduce the size and increase the efficiency of the devices.

Researchers at Purdue University have come up with an effective way to reduce the size and increase the efficiency of the moderate- to low-power electric generators used in those applications.

A wound rotor synchronous machine contains a field winding—a group of insulated current-carrying coils—on the rotor used to create a rotating and regulate the output voltage. Associated with this winding are losses, which generate heat that must be removed from the spinning rotor. Permanent magnets can also be used to generate the magnetic field with much less loss and heat generation, but this approach does not facilitate output voltage regulation.

Jul 5, 2019

Multiplex Automated Genomic Engineering (MAGE)

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

A machine that speeds up evolution is revolutionizing genome design and selection of designer microbes.

Jul 5, 2019

Holograms from electrons scattered

Posted by in categories: holograms, quantum physics

The quantum interference of electrons that have been scattered by light has been used to produce holograms of the underlying electromagnetic fields — and might open up methods for studying materials at high temporal and spatial resolution. A fresh approach to imaging light fields.

Jul 5, 2019

Scientists are trying to open a portal to a parallel universe

Posted by in category: cosmology

Does a mysterious mirror world lurk in the shadows of perceived reality? It could explain a lot.

Jul 5, 2019

Amazon’s 25th Anniversary Marks a History of Unprecedented Growth

Posted by in category: futurism

When Jeff Bezos and his first Amazon staff began selling books from his garage, they started an enterprise that is now the largest online retailer in much of the world. As Amazon celebrates its 25th birthday, it’s the world’s most valuable public company and Bezos is the richest person on the planet.

Jul 5, 2019

Neutral Theory of Evolution Challenged

Posted by in categories: biotech/medical, evolution

For 50 years, evolutionary theory has emphasized the importance of neutral mutations over adaptive ones in DNA. Real genomic data challenge that assumption.

Jul 5, 2019

Amazon is Selling Tiny Homes for Less Than $20,000

Posted by in category: habitats

Amazon is selling a slew of tiny homes on its Website for different price points including ones that are under $20,000.

Jul 5, 2019

The bite that cures: how we’re turning venom into medicine

Posted by in category: biotech/medical

How can bee stings help in the battle against HIV? Could snake venom be used to treat high blood pressure? Kath Nightingale investigates.

Jul 5, 2019

Dr. Steffanie Strathdee PhD. — UCSD Center for Innovative Phage Applications and Therapeutics (IPATH) — ideaXme — Ira Pastor

Posted by in categories: aging, bioengineering, biotech/medical, counterterrorism, defense, disruptive technology, existential risks, genetics, health, life extension