achiral

Energy-dependent chirality

See also: Achiral glycine Summary: Virus-driven energy theft alters the interactions between physics and chemistry that maintain biophysically constrained biodiversity. That’s how viruses are linked from mutations to all pathology. Nutrient energy-dependent changes in the context of the pheromone-controlled physiology of reproduction biophysically constrain biodiversity via the fixation of amino acid substitutions in supercoiled DNA, which protects organized genomes from virus-driven pathology. Chirality (chemistry) Two enantiomers of a generic amino acid that is chiral The chirality of amino acids is energy-dependent…

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Mutisensory integration: watching the paradigm shift

Multisensory integration and causal inference in the brain Excerpt (with my emphasis):  It is largely unknown how the brain implements prior knowledge and expectations. Various mechanisms have been proposed such as spontaneous activity (Berkes et al., 2011), the fraction of neurons encoding a particular feature (Girshick et al., 2011), their response gain and tuning curves or connectivity and top-down projections from higher order areas (Rao and Ballard, 1999).” My comment: The brain implements prior knowledge and expectations through nutrient-dependent pheromone-controlled…

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Assembling yourself: Molecular self / other recognition

Chiral recognition and selection during the self-assembly process of protein-mimic macroanions Abstract excerpt: “We believe that delicate long-range electrostatic interactions could be responsible for such high-level chiral recognition and selection.” Article excerpt: “This self-assembly allows relatively simple building blocks to organize themselves into larger supramolecular structures, a phenomenon that has parallels with the formation of viral capsids (both in morphology and kinetics)37.” Reported as: Discovery demystifies origin of life chirality phenomenon Excerpt: “The origin of life is still a mystery…

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Quantum Superpositions: let there be light

Ideal Negative Measurements in Quantum Walks Disprove Theories Based on Classical Trajectories Reported as: Atoms can be in two places at the same time Excerpt: “This is not yet a proof that quantum mechanics hold for large objects,” cautions Alberti. My comment: I framed my comments and a question in the context of this article on physics. Their claim of a possible size limit on quantum superpositions seemed to divorce top-down causation from cell–cell communication in mammals. That suggested there…

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Quantum entanglement, mass, and biomass

Joseph Kover seems closer than most other physicists to linking light-induced amino acid substitutions to cell type differentiation and biomass via the biophysically constrained chemistry of protein folding.  Today he posted notice of the following publication with the comment: “… just what I was waiting for…” Entanglement Makes Quantum Particles Measurably Heavier, Says Quantum Theorist Excerpt: The discovery is a long sought-after link between the theories of quantum mechanics and general relativity See also this model by Joseph Kover: I’m…

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Achiral GnRH: no prophesy, just prediction

Predictions build on facts, mysterious “tongues” do not. (1 Corinthians 14:2-4) Effective communication demands that audiences understand what serious scientists and theologians can or cannot predict. Predicting the end of evolutionary theory or the end of the world by focusing on a model of biological facts may be an important aspect of effective communication. A problem may be the words and phrases that pseudoscientists and serious scientists use. Some make biological facts seem like mysteries until the facts are effectively…

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Forces of "Nature" limit dissemination of information

Force of nature gave life its asymmetry Excerpt: “In 2011, Meierhenrich and colleages showed4 that such light could transfer its handedness to amino acids. But even demonstrating how a common physical phenomenon would have favoured left-handed amino acids over right-handed ones would not tell us that this was how life evolved, adds Laurence Barron, a chemist at the University of Glasgow, UK. “There are no clinchers. We may never know.” My comment:I think the clincher is the creation of the…

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