Tierra (computer Simulation)

picture info	Tierra (computer Simulation) Tierra is a computer simulation developed by ecologist Thomas S. Ray in the early 1990s in which computer programs compete for time (central processing unit ( CPU) time) and space (access to main memory). In this context, the computer programs in Tierra are considered to be evolvable and can mutate, self-replicate and recombine. Tierra's virtual machine is written in C. It operates on a custom instruction set designed to facilitate code changes and reordering, including features such as jump to template (as opposed to the relative or absolute jumps common to most instruction sets). Simulations The basic Tierra model has been used to experimentally explore '' in silico'' the basic processes of evolutionary and ecological dynamics. Processes such as the dynamics of punctuated equilibrium, host-parasite co-evolution and density-dependent natural selection are amenable to investigation within the Tierra framework. A notable difference between Tierra and more conventional mode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Tierra Tierra may refer to: Astronomy Earth in the Spanish and Asturian language Computing and games Tierra (computer simulation), a computer simulation of life by the ecologist Thomas S. Ray * Tierra Entertainment, now known as AGD Interactive, a non-profit game company specializing in remakes of classic adventure games by Sierra Entertainment Film * ''Tierra'' (film), a 1996 movie by the Spanish filmmaker Julio Medem Music * Tierra (band), a Latin R&B band from the 1970s and 1980s Albums * ''Tierra'' (Tierra album), a 1973 album by Tierra * ''Tierra'' (L'Arc-en-Ciel album), a 1994 album by the Japanese rock band L'Arc-en-Ciel See also * Tiara A tiara (from la, tiara, from grc, τιάρα) is a jeweled head ornament. Its origins date back to ancient Greece and Rome. In the late 18th century, the tiara came into fashion in Europe as a prestigious piece of jewelry to be worn by women ... , a type of crown or headpiece {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Natural Selection Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations. Charles Darwin popularised the term "natural selection", contrasting it with selective breeding, artificial selection, which in his view is intentional, whereas natural selection is not. Genetic diversity, Variation exists within all populations of organisms. This occurs partly because random mutations arise in the genome of an individual organism, and their offspring can inherit such mutations. Throughout the lives of the individuals, their genomes interact with their environments to cause variations in traits. The environment of a genome includes the molecular biology in the Cell (biology), cell, other cells, other individuals, populations, species, as well as the abiotic environment. Because individuals with certain variants of the trait tend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Systems Biology Systems biology is the computational modeling, computational and mathematical analysis and modeling of complex biological systems. It is a biology-based interdisciplinary field of study that focuses on complex interactions within biological systems, using a holistic approach (holism instead of the more traditional reductionist, reductionism) to biological research. Particularly from the year 2000 onwards, the concept has been used widely in biology in a variety of contexts. The Human Genome Project is an example of applied systems thinking in biology which has led to new, collaborative ways of working on problems in the biological field of genetics. One of the aims of systems biology is to model and discover emergent property, emergent properties, properties of cell (biology), cells, tissue (biology), tissues and organisms functioning as a system whose theoretical description is only possible using techniques of systems biology. These typically involve metabolic networks or cell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Mathematical Model A mathematical model is a description of a system using mathematical concepts and language. The process of developing a mathematical model is termed mathematical modeling. Mathematical models are used in the natural sciences (such as physics, biology, earth science, chemistry) and engineering disciplines (such as computer science, electrical engineering), as well as in non-physical systems such as the social sciences (such as economics, psychology, sociology, political science). The use of mathematical models to solve problems in business or military operations is a large part of the field of operations research. Mathematical models are also used in music, linguistics, and philosophy (for example, intensively in analytic philosophy). A model may help to explain a system and to study the effects of different components, and to make predictions about behavior. Elements of a mathematical model Mathematical models can take many forms, including dynamical systems, statisti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Russell K Russell may refer to: People * Russell (given name) * Russell (surname) * Lady Russell (other) * Lord Russell (other) Places Australia Russell, Australian Capital Territory Russell Island, Queensland (other) Russell Island (Moreton Bay) Russell Island (Frankland Islands) Russell Falls, Tasmania A former name of Westerway, Tasmania Canada Russell, Ontario, a township in Ontario Russell, Ontario (community), a town in the township mentioned above. Russell, Manitoba Russell Island (Nunavut) New Zealand Russell, New Zealand, formerly Kororareka Okiato or Old Russell, the first capital of New Zealand Solomon Islands Russell Islands United States Russell, Arkansas Russell City, California, formerly Russell Russell, Colorado Russell, Georgia Russell, Illinois Russell, Iowa Russell, Kansas Russell, Kentucky, in Greenup County Russell, Louisville, Kentucky Russell, Massachusetts, a New England town Russell (CDP), Massachusetts, ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]