Portal:Systems science Information
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| Complex systems approach |
Systems science is an interdisciplinary field that studies the nature of systems—from simple to complex—in nature, society, cognition, engineering, technology and science itself. To systems scientists, the world can be understood as a system of systems. The field aims to develop interdisciplinary foundations that are applicable in a variety of areas, such as psychology, biology, medicine, communication, business management, engineering, and social sciences.
Systems science covers formal sciences such as complex systems, cybernetics, dynamical systems theory, information theory, linguistics or systems theory. It has applications in the field of the natural and social sciences and engineering, such as control theory, operations research, social systems theory, systems biology, system dynamics, human factors, systems ecology, systems engineering and systems psychology. Themes commonly stressed in system science are (a) holistic view, (b) interaction between a system and its embedding environment, and (c) complex (often subtle) trajectories of dynamic behavior that sometimes are stable (and thus reinforcing), while at various ' boundary conditions' can become wildly unstable (and thus destructive). Concerns about Earth-scale biosphere/geosphere dynamics is an example of the nature of problems to which systems science seeks to contribute meaningful insights.
Selected article
In mathematics, the polar coordinate system is a two-dimensional coordinate system in which each point on a plane is determined by an angle and a distance. The polar coordinate system is especially useful in situations where the relationship between two points is most easily expressed in terms of angles and distance; in the more familiar Cartesian or rectangular coordinate system, such a relationship can only be found through trigonometric formulae.
As the coordinate system is two-dimensional, each point is determined by two polar coordinates: the radial coordinate and the angular coordinate. The radial coordinate (usually denoted as ) denotes the point's distance from a central point known as the pole (equivalent to the origin in the Cartesian system). The angular coordinate (also known as the polar angle or the azimuth angle, and usually denoted by θ or ) denotes the positive or anticlockwise (counterclockwise) angle required to reach the point from the 0° ray or polar axis (which is equivalent to the positive x-axis in the Cartesian coordinate plane).
Selected picture
An aerial view of a
human ecosystem. Pictured is the city of
Chicago.
Selected systems scientist
W. Ross Ashby (September 6, 1903, London - November 15, 1972) was an English psychiatrist and a pioneer in cybernetics, the study of complex systems. His first name was never used, and generally, he was called 'Ross Ashby'.
Despite being widely influential within cybernetics, systems theory and, more recently, complex systems, he is not nearly as well known as many of the notable scientists his work influenced including Herbert A. Simon, Norbert Wiener, Ludwig von Bertalanffy, Stafford Beer and Stuart Kauffman.
WikiProjects
Did you know
- ...that systems art is an art movement from the 1960s influenced by systems theory, which reflects on natural systems, social systems and social signs of the art world itself?
- ...that a successful experimental system must be stable and reproducible enough for scientists to make sense of the system's behavior, but unpredictable enough that it can produce useful results?
- ... that the anthropologist, linguist, and cyberneticist Gregory Bateson's most noted writings are Steps to an Ecology of Mind (1972) and Mind and Nature (1980).
- ... that a multi-agent system (MAS) is a system composed of multiple interacting intelligent agents, which can be used to solve problems which are impossible for monolithic system to solve.
- ... that the American systems scientist
John Nelson Warfield found
systems science to consist of a hierarchy of sciences.
- Beginning at the base, with a science of description,
- continuing vertically with a science of design,
- then a science of complexity,
- and next a science of action, called "Interactive management".
- ... that self-organization is a process of attraction and repulsion in which the internal organization of a system, normally an open system, increases in complexity without being guided or managed by an outside source?
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