Menu

Blog

Archive for the ‘biotech/medical’ category: Page 39

Jul 25, 2024

What Houston universities gain from DARPA semiconductor award

Posted by in categories: biotech/medical, chemistry, genetics

A new study by scientists at deCODE Genetics shows that sequence variants drive the correlation between DNA methylation and gene expression. The same variants are linked to various diseases and other human traits.

The research is published in the journal Nature Genetics under the title “The correlation between CpG methylation and is driven by sequence variants.”

Nanopore sequencing is a new technology developed by ONT (Oxford Nanopore Technology), that enables us to analyze DNA sequences in . With this technology, DNA molecules are drawn through tiny protein pores, and real-time measurements of electric current indicate which nucleotides in the DNA have passed through the pores. This allows the sequence of nucleotides in the DNA to be read, while also making it possible to detect chemical modifications of the nucleotides from these same measurements.

Jul 25, 2024

The Clinical, Philosophical, Evolutionary and Mathematical Machinery of Consciousness: An Analytic Dissection of the Field Theories and a Consilience of Ideas

Posted by in categories: biotech/medical, evolution, information science, mathematics, neuroscience, quantum physics

The Cartesian model of mind-body dualism concurs with religious traditions. However, science has supplanted this idea with an energy-matter theory of consciousness, where matter is equivalent to the body and energy replaces the mind or soul. This equivalency is analogous to the concept of the interchange of mass and energy as expressed by Einstein’s famous equation [Formula: see text]. Immanuel Kant, in his Critique of Pure Reason, provided the intellectual and theoretical framework for a theory of mind or consciousness. Any theory of consciousness must include the fact that a conscious entity, as far as is known, is a wet biological medium (the brain), of stupendously high entropy. This organ or entity generates a field that must account for the “binding problem”, which we will define. This proposed field, the conscious electro-magnetic information (CEMI) field, also has physical properties, which we will outline. We will also demonstrate the seamless transition of the Kantian philosophy of the a priori conception of space and time, the organs of perception and conception, into the CEMI field of consciousness. We will explore the concept of the CEMI field and its neurophysiological correlates, and in particular, synchronous and coherent gamma oscillations of various neuronal ensembles, as in William J Freeman’s experiments in the early 1970s with olfactory perception in rabbits. The expansion of the temporo-parietal-occipital (TPO) cortex in hominid evolution epitomizes metaphorical and abstract thinking. This area of the cortex, with synchronous thalamo-cortical oscillations has the best fit for a minimal neural correlate of consciousness. Our field theory shifts consciousness from an abstract idea to a tangible energy with defined properties and a mathematical framework. Even further, it is not a coincidence that the cerebral cortex is very thin with respect to the diameter of the brain. This is in keeping with its fantastically high entropy, as we see in the event horizon of a black hole and the conformal field theory/anti-de Sitter (CFT/ADS) holographic model of the universe. We adumbrate the uniqueness of consciousness of an advanced biological system such as the human brain and draw insight from Avicenna’s gendanken, floating man thought experiment. The multi-system high volume afferentation of a biological wet system honed after millions of years of evolution, its high entropy, and the CEMI field variation inducing currents in motor output pathways are proposed to spark the seeds of consciousness. We will also review Karl Friston’s free energy principle, the concept of belief-update in a Bayesian inference framework, the minimization of the divergence of prior and posterior probability distributions, and the entropy of the brain. We will streamline these highly technical papers, which view consciousness as a minimization principle akin to Hilbert’s action in deriving Einstein’s field equation or Feynman’s sum of histories in quantum mechanics. Consciousness here is interpreted as flow of probability densities on a Riemmanian manifold, where the gradient of ascent on this manifold across contour lines determines the magnitude of perception or the degree of update of the belief-system in a Bayesian inference model. Finally, the science of consciousness has transcended metaphysics and its study is now rooted in the latest advances of neurophysiology, neuro-radiology under the aegis of mathematics.

Keywords: anatomy & physiology; brain anatomy; disorders of consciousness; philosophy.

Copyright © 2020, Kesserwani et al.

Jul 25, 2024

New Quantum-Enhanced Microscopy Unveils Cellular Force Secrets

Posted by in categories: biotech/medical, nanotechnology, quantum physics

The project, led by Professor Zhiqin Chu from the Department of Electrical and Electronic Engineering at the University of Hong Kong (HKU), and Professor Qiang Wei from Sichuan University, utilized label-free quantum sensing technology to measure cellular force at the nanoscale. This advancement surpasses the limitations of traditional cellular force measurement tools and provides new insights into cellular mechanics, particularly regarding how cellular adhesion forces affect cancer cell spreading.

The research team has developed a new Quantum-Enhanced Diamond Molecular Tension Microscopy (QDMTM) that offers an effective approach for studying cell adhesion forces. Compared to cell force measurement methods that utilize fluorescent probes, QDMTM has the potential to overcome challenges such as photobleaching, limited sensitivity, and ambiguity in data interpretation. Furthermore, QDMTM sensors can be cleaned and reused, enhancing the absolute accuracy of comparing cell adhesion forces across various samples.

Jul 24, 2024

Space Omics and Medical Atlas (SOMA) across orbits

Posted by in category: biotech/medical

New studies on astronauts and space biology bring humanity one step closer to the final frontier.

The Space Omics and Medical Atlas (SOMA) package of manuscripts, data, protocols, and code represents the largest-ever compendium of data for aerospace medicine and space biology.

Jul 24, 2024

Mom raises critical warning to parents after son contracts serious disease spreading across state: ‘It ravaged his body’

Posted by in category: biotech/medical

In Arizona, cases of valley fever — a disease spread by a fungus that lives in the dirt — have more than doubled in the past year, 12News reported. The spike in cases may be related to conditions brought about by the ongoing overheating of our planet, officials said.

Valley fever is a lung infection that causes symptoms similar to those that come with pneumonia. These symptoms include fatigue, cough, fever, headache, shortness of breath, night sweats, muscle aches, and rash, according to the Centers for Disease Control and Prevention.

Continue reading “Mom raises critical warning to parents after son contracts serious disease spreading across state: ‘It ravaged his body’” »

Jul 24, 2024

Modeling of nanoparticle-sensitized spatially localized dynamic photohyperthermia in a blood vessel under infrared laser irradiation with a scanning beam

Posted by in categories: biotech/medical, nanotechnology

Jul 24, 2024

Nanoparticle-coated catalyst boosts sustainable acetate production

Posted by in categories: biotech/medical, food, nanotechnology

Acetic acid, also known as acetate, and other products that can be developed from acetic acid are used in a variety of industries, from food production to medicine to agriculture. Currently, acetate production uses a significant amount of energy and results in harmful waste products. The efficient and sustainable production of acetate is an important target for researchers interested in improving industrial sustainability.

A paper published in Carbon Future (“CO 2 electroreduction to acetate by enhanced tandem effects of surface intermediate over Co 3 O 4 supported polyaniline catalyst”) outlines a method using a polyaniline catalyst with cobalt oxide nanoparticles to produce acetate through carbon dioxide electroreduction.

This image shows a polyaniline catalyst coated in cobalt oxide nanoparticles and demonstrates how the catalyst facilitates the conversion of carbon dioxide to carbon monoxide to acetate. (Image: Carbon Future)

Jul 24, 2024

Parkinson’s patient sees life-changing results with new drug

Posted by in categories: biotech/medical, neuroscience

By Douglas Whitbread via SWNS

Footage shows a Parkinson’s sufferer’s “life-changing” transformation after taking a new wonder treatment — for just one week.

Damian Gath, 52, who previously went to the gym four times a week, was diagnosed with the incurable brain condition — which causes involuntary shaking — ten years ago.

Jul 24, 2024

Dr. Andrea Choe, MD, Ph.D. — CEO, Holoclara — Worm-Derived Therapeutics For Debilitating Diseases

Posted by in categories: biotech/medical, health

Worm-Derived Therapeutics For Debilitating Diseases — Dr. Andrea Choe, MD, Ph.D. — CEO, Holoclara Inc


Dr. Andrea Choe, MD, Ph.D. is the CEO and Co-Founder of Holoclara (https://www.holoclara.com/), a company focused on creating novel, safe, orally bioavailable worm-derived therapeutics with a focus on indications such as allergies and autoimmune disorders.

Continue reading “Dr. Andrea Choe, MD, Ph.D. — CEO, Holoclara — Worm-Derived Therapeutics For Debilitating Diseases” »

Jul 24, 2024

Stress granules found to play an unsuspected role in blood vessel formation

Posted by in category: biotech/medical

The behavior of the cells that make up our blood vessels is crucial to our well-being. Conditions such as inflammation, oxygen deprivation and viral infection can stress these cells and disrupt the formation of new, often pathological, blood vessels. Now a team of researchers led by Jean-Philippe Gratton, chair of the Department of Pharmacology and Physiology at Université de Montréal and a specialist in vascular biology, has discovered a previously unknown pathway leading to the formation of new blood vessels, a process known as angiogenesis.

Page 39 of 2,682First3637383940414243Last