equilibrium

Equilibrium is the condition of a system in which competing influences are balanced and it may refer to:

Biology

• Equilibrioception, the sense of balance present in humans and animals
• Homeostasis, the ability of an open system, especially living organisms, to regulate its internal environment
• Genetic equilibrium, theoretical state in which a population is not evolving
• Punctuated equilibrium, theory in evolutionary biology
• Sedimentation equilibrium, analytical ultracentrifugation method for measuring protein molecular masses in solution
• Ecological homeostasis, a property of some ecosystems

Chemistry

• Chemical equilibrium, the state in which the concentrations of the reactants and products have no net change over time
• Diffusion equilibrium, when the concentrations of the diffusing substance in the two compartments are equal
• Donnan equilibrium, the distribution of ion species between two ionic solutions separated by a semipermeable membrane or boundary
• Dynamic equilibrium, the state in which two reversible processes occur at the same rate
• Equilibrium constant, a quantity characterizing a chemical equilibrium in a chemical reaction
• Equilibrium unfolding, the process of unfolding a protein or RNA molecule by gradually changing its environment
• Partition equilibrium, a type of chromatography that is typically used in GC
• Quasistatic equilibrium, the quasi-balanced state of a thermodynamic system near to equilibrium in some sense or degree
• Schlenk equilibrium, a chemical equilibrium named after its discoverer Wilhelm Schlenk taking place in solutions of Grignard reagents
• Solubility equilibrium, any chemical equilibrium between solid and dissolved states of a compound at saturation
• Thermodynamic equilibrium, the state of a thermodynamic system which is in thermal, mechanical, and chemical equilibrium

Economics

• Competitive equilibrium, economic equilibrium when all buyers and sellers are small relative to the market
• Economic equilibrium, a condition in economics
• Equilibrium price, the price at which supply equals demand
• General equilibrium, a branch of theoretical microeconomics
• Intertemporal equilibrium, an equilibrium concept over time
• Lindahl equilibrium, a method proposed by Erik Lindahl for financing public goods
• Partial equilibrium, one part of the general economic equilibrium
• Radner equilibrium, an economic concept defined by economist Roy Radner in the context of general equilibrium
• Static equilibrium (economics), the intersection of supply and demand in any market
• Sunspot equilibrium, an economic equilibrium in which nonfundamental factors affect prices or quantities
• Underemployment equilibrium, a situation in Keynesian economics with a persistent shortfall relative to full employment and potential output

Game theory

• Correlated equilibrium, a solution concept in game theory that is more general than the well known Nash equilibrium
• Nash equilibrium, a solution concept in game theory involving two or more players
  • Quasi-perfect equilibrium, a refinement of Nash Equilibrium for extensive form games due to Eric van Damme
  • Sequential equilibrium, a refinement of Nash Equilibrium for extensive form games due to David M. Kreps and Robert Wilson
• Symmetric equilibrium, in game theory, an equilibrium where all players use the same strategy
• Trembling hand perfect equilibrium assumes that the players, through a "slip of the hand" or tremble, may choose unintended strategies

Music

• Equilibrium (band), a German Viking metal band
• "IX Equilibrium", the third LP by the Black metal band Emperor
• Equilibrium (record label), a Portuguese record label

Philosophy

• Rexist Equilibrium of Life, refers to a philosophical, psychological and mathematical concept that uses the idea of equilibrium states to explain, reveal and make connections about human existence, happiness, spirituality and the beyond.

Physics

• Equilibrium mode distribution, involves light traveling in an optical waveguide or fiber
• Hydrostatic equilibrium, the state of a system in which compression due to gravity is balanced by a pressure gradient force
• Hyperbolic equilibrium point, a mathematical concept in physics
• Mechanical equilibrium, the state in which the sum of the forces, and torque, on each particle of the system is zero
• Secular equilibrium, a state of radioactive elements in which the production rate of a daughter nucleus is balanced by its own decay rate

Other

• Equilibrium (2002 film), a science-fiction film
• "Equilibrium" (seaQuest 2032 episode), episode of seaQuest 2032
• "Equilibrium" (DS9 episode), an episode of Star Trek: Deep Space Nine
• Equilibrium moisture content, the moisture content at which the wood is neither gaining nor losing moisture
• Equilibrium point, node in mathematics
• Patterson equilibrium, a theory used in highway traffic modelling, air-traffic modelling, business modelling, and electrical grid operation
• Reflective equilibrium, the state of balance or coherence among a set of beliefs arrived at by a process of deliberative mutual adjustment
• Social equilibrium, a system in which there is a dynamic working balance among its interdependent parts
• Equilibrium (puzzle), a 3D interlocking type puzzle made of 6 half circle pieces
• Equilibration is the means of cognitive development in Jean Piaget's cognitive developmental theory.

See also

• Stability
• Steady state (disambiguation)
• Equilibristics, e.g. juggling

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.

Donate to Wikimedia