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Self-replication is a fundamental feature of life. It was proposed that self-replication emerged in the evolution of life when a molecule similar to a double-stranded polynucleotide (possibly like RNA) dissociated into single-stranded polynucleotides and each of these acted as a template for synthesis of a complementary strand producing two double stranded copies. [4]
CA) is a discrete model of computation studied in automata theory. Cellular automata are also called cellular spaces, tessellation automata, homogeneous structures, cellular structures, tessellation structures, and iterative arrays. [2] Cellular automata have found application in various areas, including physics, theoretical biology and ...
Hypercycle (chemistry) – Cyclic sequence of self-reproducing single cycles; Information metabolism – Psychological theory of interaction between biological organisms and their environment; Loschmidt's paradox – Conflict between known physical principles (time symmetry and entropy) Niklas Luhmann – German sociologist (1927–1998)
Von Neumann's System of Self-Replication Automata with the ability to evolve (Figure adapted from Luis Rocha's Lecture Notes at Binghamton University [6]).i) the self-replicating system is composed of several automata plus a separate description (an encoding formalized as a Turing 'tape') of all the automata: Universal Constructor (A), Universal Copier (B), operating system (C), extra ...
The primary use of the chemoton model is in the study of the chemical origin of life. This is because the chemoton itself can be thought of as a primitive or minimal cellular life as it satisfies the definition of what a cell is (that it is a unit of biological activity enclosed by a membrane and capable of self-reproduction).
Neumann wrote a paper entitled "The general and logical theory of automata" for the Hixon Symposium in 1948. [11] Ulam was the one who suggested using a discrete system for creating a reductionist model of self-replication. [8]: 3 [12]: xxix Ulam and von Neumann created a method for calculating liquid motion in the late 1950s. The driving ...
Thus, once a loop is surrounded, it is incapable of reproducing, resulting in a coral-like colony with a thin layer of reproducing organisms surrounding a core of inactive "dead" organisms. The maximum population will be asymptotic to ⌊ A 121 ⌋ {\displaystyle \textstyle \left\lfloor {\frac {A}{121}}\right\rfloor } , where A is the total ...
Their original purpose was to provide insight into the logical requirements for machine self-replication, and they were used in von Neumann's universal constructor. Nobili cellular automaton is a variation of von Neumann's cellular automaton, augmented with the ability for confluent cells to cross signals and store information. The former ...