Menu

Blog

Page 3168

Nov 8, 2022

Incredible story of woman who came back to life after being dead for 17 hours

Posted by in categories: biotech/medical, neuroscience

A woman once baffled doctors when she came back to life after being dead for more than 17 hours. Velma Thomas had a heart attack at her home in Virginia in 2008 and was rushed to hospital. While there she had two more heart attacks and was placed on life support — in all, her heart stopped beating three times and she was clinically dead, with no brain activity, for 17 hours.

Nov 8, 2022

Last-resort cancer therapy holds back disease for more than a decade

Posted by in category: biotech/medical

Two of the first people treated with CAR-T-cell cancer therapies are still in remission 12 years on.

Nov 8, 2022

Reprogrammed CRISPR-Cas13b suppresses SARS-CoV-2 replication and circumvents its mutational escape through mismatch tolerance Communications

Posted by in category: biotech/medical

Cas13b can be harnessed to target and degrade RNA transcripts inside a cellular environment. Here the authors reprogram Cas13b to target SARSCoV-2 transcripts in infected mammalian cells and reveal its resilience to variants thanks to single mismatch tolerance.

Nov 8, 2022

Dr. James Revill, Ph.D. — Head of Weapons of Mass Destruction & Space Security Programs, UNIDIR

Posted by in categories: biological, chemistry, evolution, military, policy, space, terrorism

Building A More Secure World — Dr. James Revill, Ph.D. — Head of Weapons of Mass Destruction & Space Security Programs, UNIDIR, UN Institute for Disarmament Research United Nations.


Dr. James Revill, Ph.D. (https://unidir.org/staff/james-revill) is the Head of the Weapons of Mass Destruction (WMD) and Space Security Program, at the UN Institute for Disarmament Research (UNIDIR).

Continue reading “Dr. James Revill, Ph.D. — Head of Weapons of Mass Destruction & Space Security Programs, UNIDIR” »

Nov 8, 2022

Quantum materials enable next-generation photonics and mobile networks in the terahertz regime

Posted by in categories: quantum physics, security

Terahertz light, radiation in the far-infrared part of the emission spectrum, is currently not fully exploited in technology, although it shows great potential for many applications in sensing, homeland security screening, and future (sixth generation) mobile networks.

Indeed, this radiation is harmless due to its small photon energy, but it can penetrate many materials (such as skin, packaging, etc.). In the last decade, a number of research groups have focused their attention on identifying techniques and materials to efficiently generate THz electromagnetic waves: among them is the wonder material graphene, which, however, does not provide the desired results. In particular, the generated terahertz output power is limited.

Better performance has now been achieved by topological insulators (TIs)—quantum materials that behave as insulators in the bulk while exhibiting conductive properties on the surface—according to a paper recently published in Light: Science & Applications.

Nov 8, 2022

Scientists Are Using the “Dark Matter” of the Human Genome To Help Cure Cancer

Posted by in categories: biotech/medical, genetics

In Switzerland, cancer is the second-leading cause of death. Non-small cell lung cancer (NSCLC) is the cancer form that kills the most people and is still mostly incurable. Unfortunately, only a small percentage of patients survive the metastatic stage for a long time, and even recently approved therapies can only prolong patients’ lives by a few months. As a result, researchers are looking for innovative cancer treatments. Researchers from the University of Bern and the Insel Hospital identified new targets for drug development for this cancer type in a recent study published in the journal Cell Genomics.

They searched for novel targets in the poorly understood class of genes known as “long noncoding RNAs (Ribonucleic acids)” (lncRNAs). LncRNAs are abundant in the “Dark Matter,” or non-protein-coding DNA

DNA, or deoxyribonucleic acid, is a molecule composed of two long strands of nucleotides that coil around each other to form a double helix. It is the hereditary material in humans and almost all other organisms that carries genetic instructions for development, functioning, growth, and reproduction. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Nov 8, 2022

Galaxies collide in stunning new Webb Telescope image

Posted by in category: space

Webb’s instruments shed new light on the merger between two galaxies and a brilliant burst of star formation.

Nov 8, 2022

Digital Doubles and Second Selves

Posted by in categories: augmented reality, automation, big data, computing, cyborgs, evolution, futurism, information science, innovation, internet, life extension, machine learning, neuroscience, posthumanism, robotics/AI, singularity, software, supercomputing

This time I come to talk about a new concept in this Age of Artificial Intelligence and the already insipid world of Social Networks. Initially, quite a few years ago, I named it “Counterpart” (long before the TV series “Counterpart” and “Black Mirror”, or even the movie “Transcendence”).

It was the essence of the ETER9 Project that was taking shape in my head.

Over the years and also with the evolution of technologies — and of the human being himself —, the concept “Counterpart” has been getting better and, with each passing day, it makes more sense!

Imagine a purely digital receptacle with the basics inside, like that Intermediate Software (BIOS(1)) that computers have between the Hardware and the Operating System. That receptacle waits for you. One way or another, it waits patiently for you, as if waiting for a Soul to come alive in the ether of digital existence.

Continue reading “Digital Doubles and Second Selves” »

Nov 8, 2022

Novel scanner hooks to a smartphone to detect viruses

Posted by in categories: biotech/medical, mobile phones

Knowing that current methods to detect viruses and other biological markers of disease are effective, yet large and expensive (such as fluorescence microscopes), a team of researchers at the University of Tokyo (Tokyo, Japan) has developed and tested a miniaturized virus-scanning system that makes use of low-cost components and a smartphone. The researchers hope the system could aid those who tackle the spread of diseases faster, as current tools—while highly accurate at counting viruses—are too cumbersome for many situations, especially when rapid diagnosis is required.

The newly developed device, which scans biological samples for real viruses, is portable, low-cost, and battery-powered. Yoshihiro Minagawa from the University of Tokyo, who led the development, tested the device with viruses, but says it could also detect other biological markers.

“I wanted to produce a useful tool for inaccessible or less-affluent communities that can help in the fight against diseases such as influenza,” says Minagawa. “Diagnosis is a critical factor of disease prevention. Our device paves the way for better access to essential diagnostic tools.”

Nov 8, 2022

An antibody from single human VH-rearranging mouse neutralizes all SARS-CoV-2 variants through BA.5

Posted by in category: biotech/medical

A humanized antibody from a recently-developed mouse model potently neutralizes SARS-CoV-2 variants by inhibiting membrane fusion.