## General System Theory: Foundations, Development, ApplicationsAn attempt to formulate common laws that apply to virtually every scientific field, this conceptual approach has had a profound impact on such widely diverse disciplines as biology, economics, psychology, and demography. |

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Page 125

where the ratio between the phases remains

may attain (certain conditions presupposed) a time-independent steady state,

where the system remains

where the ratio between the phases remains

**constant**. An open chemical systemmay attain (certain conditions presupposed) a time-independent steady state,

where the system remains

**constant**as a whole and in its (macroscopic) phases, ...Page 130

ing to zero for certain relations between

the other hand, there is a time-independent steady state expressed by Qu in (5.9)

, Qu must suffice the time-independent equation: T, H-P, = 0 (5.10) From this we ...

ing to zero for certain relations between

**constants**and limiting conditions. If, onthe other hand, there is a time-independent steady state expressed by Qu in (5.9)

, Qu must suffice the time-independent equation: T, H-P, = 0 (5.10) From this we ...

Page 136

If k is a

weight); similar, with m as

weight increase defined by the difference of these magnitudes: dw dt ms – kw.

If k is a

**constant**for catabolism per unit mass, total catabolism will be kw (w =weight); similar, with m as

**constant**per unit surface, anabolism will be ms, andweight increase defined by the difference of these magnitudes: dw dt ms – kw.

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### Contents

Introduction | 8 |

On the History of Systems Theory | 10 |

Trends in Systems Theory | 17 |

Copyright | |

56 other sections not shown

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### Common terms and phrases

allometric animals appears applied approach aspects atoms basic Bertalanffy biological catabolism causality cell characteristics chemical classical classical physics closed systems complex components consideration considered constant contrast cultural cybernetics defined differential equations dynamic elements energy entities entropy equifinality equilibrium essentially evolution example existence experience expressed fact feedback fields formulation function game theory graph theory growth curves homeostasis homeostatic human behavior important increase individual information theory interaction isomorphic kinetics language laws living organism Lotka machine mathematical means mechanisms mechanistic mental metabolic rate modern nature open systems organismic phenomena philosophy physics physiological possible present principle problems processes protein psychology psychophysical quantitative reaction reality regulations relations scientific sense servomechanisms similar so-called social sciences society specific steady structure symbolic system concept system theory teleology theoretical theory of open thermodynamics tion Unity of Science vitalistic Volterra whole world picture

### References to this book

The Roots of Modern Environmentalism David Pepper,John W. Perkins,Martyn J. Youngs No preview available - 1984 |