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All-optical multiplane quantitative phase imaging design eliminates the need for digital phase recovery algorithms.

UCLA researchers have introduced a breakthrough in 3D quantitative phase imaging that utilizes a wavelength-multiplexed diffractive optical processor to enhance imaging efficiency and speed. This method enables label-free, high-resolution imaging across multiple planes and has significant potential applications in biomedical diagnostics, material characterization, and environmental analysis.

Introduction to Quantitative Phase Imaging.

When we form a new memory, the brain undergoes physical and functional changes known collectively as a “memory trace.” A memory trace represents the specific patterns of activity and structural modifications of neurons that occur when a memory is formed and later recalled.

But how does the brain “decide” which neurons will be involved in a ? Studies have suggested that the inherent excitability of neurons plays a role, but the currently accepted view of learning has neglected to look inside the command center of the neuron itself, its nucleus. In the nucleus, there seems to be another dimension altogether that has gone unexplored: epigenetics.

Inside every cell of a given living organism, the genetic material encoded by the DNA is the same, yet the various cell types that make up the body, like , , or nerve cells each express a different set of genes. Epigenetics is the mechanism of how cells control such gene activity without changing the DNA sequence.

Microwave technology has dramatically progressed, marked by the arrival of the 5G era, owing to the advantages of electromagnetic waves in long-distance, wireless, and high-speed transmissions. However, electromagnetic wave pollution problems such as electromagnetic wave interference and electromagnetic wave radiation are becoming increasingly serious.

Electromagnetic wave pollution not only affects the normal operation of electronic equipment, greatly threatens the information security of the scientific community, but also endangers human health and is a possible cause of cancer and sensitized diseases.

SiOC precursor ceramics have great application potential in electromagnetic protection because of their advantages such as lightweight, high-temperature resistance, and molecular designability. The main challenge of polymer-derived ceramic-based composites for electromagnetic wave absorption is the single loss mechanism, resulting in inferior electromagnetic wave attenuation ability.

I like what Fahy says here most.


RAADfest is the largest and most immersive event in the world focused on super-longevity for a general audience. Bringing together cutting-edge science, inspiration, entertainment and fun, RAADfest is more than just a conference – it’s a celebration of life. From brain longevity and sexual health, to senolytics, personalized medicine and helping your pets live longer too, RAADfest provides the information and inspiration to enable people to take charge of their longevity.

For more info, visit: https://www.raadfest.com/

Produced by the Coalition for Radical Life Extension, RAADfest also includes RAADcity, the international product expo. RAADcity features leading brands sharing demos and deals on their longevity products and services with the people who want and need them the most.

When: Sept 5th to 8th, 2024

I have a new essay out via the wonderful site Merion West. The article is based on some of my experimental writings at Oxford. I hope you’ll read and consider it. I’m highly worried life extension science isn’t moving forward fast enough!


“Sadly, biological humans are likely to be mortal for centuries more, unless a dramatic increase of both resources and life extension scientists are marshaled.”

Certain well-known gerontologists and longevity experts around the world believe that sometime in this century—probably in the next 15–50 years—medicine will likely overcome and cure most forms of disease, and even death itself. Billionaires such as Meta’s Mark Zuckerberg, Amazon’s Jeff Bezos, Alphabet’s Larry Page, and Oracle’s Larry Ellison have jumped on board, pledging billions of dollars to “conquering all disease by this century” and mortality altogether.

These business titans hope age reversal techniques via genetic editing therapies, stem cell rejuvenation, 3D bioprinting of organs, and the widespread creation of synthetic organs like artificial hearts could keep people indefinitely young and healthy. If biological human death from disease and aging are overcome, then only catastrophic accidental death—such as an airplane crash or incineration—can kill people. (Accidental death in this vein accounts for about seven percent of all deaths in the United States.)

Transhumanists believe that the human being is like a machine—an entity that can be fixed and made to overcome nearly all biological death. The question is how fast can this be done? If the human being is indeed a machine-like entity as nearly all credible scientists propose, then the answer almost certainly rests not in the limits of biology but, rather, in the amount of work and resources put into the life extension field.

An international team of scientists, led by Trinity College Dublin, has devised an innovative imaging method using state-of-the-art microscopes that significantly reduces the time and radiation required. Their work represents a significant breakthrough that will benefit several disciplines, from materials science to medicine, as the method promises to deliver improved imaging for sensitive materials such as biological tissues that are especially vulnerable to damage.

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