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Replicator (other)
Replicator may refer to: Science * Replicator (evolution unit), the theoretical basic unit of evolution in the gene-centered view of evolution * Replicator (self-replication), a component that facilitates self-replication ** DNA replication, the process of producing two identical copies from one original DNA molecule * Replicator (nanotechnology), a device to precisely position molecules to guide chemical reactions * Clanking replicator, an artificial self-replicating system that relies on conventional large-scale technology and automation * Replicator equation, a deterministic monotone non-linear and non-innovative game dynamic used in evolutionary game theory * Replicator (cellular automaton) In cellular automata, a replicator is a pattern that produces copies of itself. In the one-dimensional Rule 90 cellular automaton, every pattern is a replicator. The same is true in the life-like cellular automaton rule Replicator (B1357/S135 ..., a pattern In military use * R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replicator (evolution Unit)
The gene-centered view of evolution, gene's eye view, gene selection theory, or selfish gene theory holds that adaptive evolution occurs through the differential survival of competing genes, increasing the allele frequency of those alleles whose phenotypic trait effects successfully promote their own propagation. The proponents of this viewpoint argue that, since heritable information is passed from generation to generation almost exclusively by DNA, natural selection and evolution are best considered from the perspective of genes. Proponents of the gene-centered viewpoint argue that it permits understanding of diverse phenomena such as altruism and intragenomic conflict that are otherwise difficult to explain from an organism-centered viewpoint. Some proponents claim that the gene-centered view is the aspect of evolutionary theory that is the most empirically validated, has the greatest predictive power, and has the broadest applicability. The gene-centered view of evoluti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replicator (self-replication)
Self-replication is any behavior of a dynamical system that yields construction of an identical or similar copy of itself. Biological cells, given suitable environments, reproduce by cell division. During cell division, DNA is replicated and can be transmitted to offspring during reproduction. Biological viruses can replicate, but only by commandeering the reproductive machinery of cells through a process of infection. Harmful prion proteins can replicate by converting normal proteins into rogue forms. Computer viruses reproduce using the hardware and software already present on computers. Self-replication in robotics has been an area of research and a subject of interest in science fiction. Any self-replicating mechanism which does not make a perfect copy (mutation) will experience genetic variation and will create variants of itself. These variants will be subject to natural selection, since some will be better at surviving in their current environment than others and will ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNA Replication
In molecular biology, DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all life, living organisms, acting as the most essential part of heredity, biological inheritance. This is essential for cell division during growth and repair of damaged tissues, while it also ensures that each of the new cells receives its own copy of the DNA. The cell possesses the distinctive property of division, which makes replication of DNA essential. DNA is made up of a nucleic acid double helix, double helix of two Complementary DNA, complementary DNA strand, strands. DNA is often called double helix. The double helix describes the appearance of a double-stranded DNA which is composed of two linear strands that run opposite to each other and twist together. During replication, these strands are separated. Each strand of the original DNA molecule then serves as a template for the production of its counterpart, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replicator (nanotechnology)
A molecular assembler, as defined by K. Eric Drexler, is a "proposed device able to guide chemical reactions by positioning reactive molecules with atomic precision". A molecular assembler is a molecular machine. Some biological molecules such as ribosomes fit this definition as biological machines. This is because they receive instructions from messenger RNA and then assemble specific sequences of amino acids to construct protein molecules. History Beginning in 2007, the British Engineering and Physical Sciences Research Council has funded development of ribosome-like molecular assemblers. Clearly, molecular assemblers are possible in this limited sense. A technology roadmap project, led by the Battelle Memorial Institute and hosted by several U.S. National Laboratories has explored a range of atomically precise fabrication technologies, including both early-generation and longer-term prospects for programmable molecular assembly; the report was released in December, 2007. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clanking Replicator
A self-replicating machine is a type of autonomous robot that is capable of reproducing itself autonomously using raw materials found in the environment, thus exhibiting self-replication in a way analogous to that found in nature. The concept of self-replicating machines has been advanced and examined by Homer Jacobson, Edward F. Moore, Freeman Dyson, John von Neumann, Konrad Zuse and in more recent times by K. Eric Drexler in his book on nanotechnology, '' Engines of Creation'' (coining the term clanking replicator for such machines) and by Robert Freitas and Ralph Merkle in their review ''Kinematic Self-Replicating Machines'' which provided the first comprehensive analysis of the entire replicator design space. The future development of such technology is an integral part of several plans involving the mining of moons and asteroid belts for ore and other materials, the creation of lunar factories, and even the construction of solar power satellites in space. The von Neuman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replicator Equation
In mathematics, the replicator equation is a type of dynamical system used in evolutionary game theory to model how the frequency of strategies in a population changes over time. It is a deterministic, monotone, non-linear, and non-innovative dynamic that captures the principle of natural selection in strategic interactions. The replicator equation describes how strategies with higher-than-average fitness increase in frequency, while less successful strategies decline. Unlike other models of replication—such as the quasispecies model—the replicator equation allows the fitness of each type to depend dynamically on the distribution of population types, making the fitness function an endogenous component of the system. This allows it to model frequency-dependent selection, where the success of a strategy depends on its prevalence relative to others. Another key difference from the quasispecies model is that the replicator equation does not include mechanisms for mutation or th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replicator (cellular Automaton)
In cellular automata, a replicator is a pattern that produces copies of itself. In the one-dimensional Rule 90 cellular automaton, every pattern is a replicator. The same is true in the life-like cellular automaton rule Replicator (B1357/S1357)... Highlife (B36/S23) rule has a simple replicator. On November 23, 2013, Dave Greene built the first replicator in Conway's Game of Life The Game of Life, also known as Conway's Game of Life or simply Life, is a cellular automaton devised by the British mathematician John Horton Conway in 1970. It is a zero-player game, meaning that its evolution is determined by its initial ... (B3/S23). References External linksCellular Automata: Replicators Cellular automaton patterns {{Comput ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replicator (United States Military)
Replicator is the name of a United States Department of Defense program intended to pioneer ways to cheaply produce large amounts of weapons or systems for the U.S. military. It was announced on Aug. 23, 2023, by Deputy Defense Secretary Kathleen Hicks Kathleen Anne Holland Hicks (born September 25, 1970) is a former American civil servant who served as the United States deputy secretary of defense from 2021 to 2025. She is the first Senate-confirmed woman in this role and is the highest-ranki ... as a means of quickly producing weapons to deter and counter China. In her announcement, Hicks said the first type of weapons to be produced under Replicator were to be autonomous systems; she did not specify whether these would be, for example, aerial drones or unmanned vessels. The Replicator program announced its first batch of contracts on May 6, 2024; they included purchases of uncrewed watercraft, aerial drones, and anti-drone defenses "of various sizes and payloads from sever ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replicator (Stargate)
Over its decade of existence, science fiction TV series ''Stargate SG-1'' developed an extensive and detailed backdrop of diverse characters. Many of the characters are members of alien species discovered while exploring the galaxy through the Stargate, although there are an equal number of characters from offworld human civilizations. While ''Stargate SG-1'', ''Stargate Atlantis'' and ''Stargate Universe'' are separate shows, they take part in the same fictional universe, so no character is internally show-specific. Main characters Except for the commanders of the top-secret Stargate Command military base (SGC), all main characters of ''Stargate SG-1'' are members of the SG-1 team, the primary unit of the SGC in the show. SG-1's duties include first contact, reconnaissance and combat, diplomacy, initial archaeological surveying, and technological assessment. The composition of SG-1 changes several times during the series run and varies in several alternative universes. Jack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replicator (Star Trek)
In ''Star Trek'' a replicator is a machine that can create (and recycle) things. Replicators were originally seen to simply synthesize meals on demand, but in later series much larger non-food items appear. The technical aspects of replicated versus "real" things is sometimes a plot element. Origins and limitations Although previous sci-fi writers had speculated about the development of "replicating" or "duplicating" technology, the term "replicator" was not itself used until '' Star Trek: The Next Generation''. In simple terms, it was described as a 24th century advancement from the 23rd century "food synthesizer" seen in '' Star Trek: The Original Series''. In ''Star Trek: The Original Series'', food was created in various colored cubes. In '' Star Trek: The Animated Series'' (1974), various types of realistic-looking food could be requested, as in the episode entitled "The Practical Joker". The mechanics of these devices were never clearly explained on that show. The subsequ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replicator (band)
Replicator was an American noise rock band from Oakland, California. The band consisted of Conan Neutron (electric guitar/vocals/tape deck operation), Ben Adrian (bass guitar/vocals/keyboard), and Chris Bolig (drums). The band was joined by Todd Grant on rhythm guitar for live performances in later years. The band members were advocates of the DIY punk ethic, as popularized by bands such as Fugazi and The Minutemen. Replicator started as a bay area Indie rock band of little distinction before finding their signature sound, often compared to bands such as Shellac, The Jesus Lizard, Steel Pole Bathtub, and the Melvins. The band had multiple songs influenced by literary works, including those of Kurt Vonnegut, Stephen King, Philip K. Dick and Neal Stephenson. Largely ignored by both the mainstream and underground music world, their irreverent attitude, and "cleverness" won them over a very small but dedicated fanbase, including a handful of famous fans, including comedian Patton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
