Genetic Variation and the Generalized Frequency-Dependent Model

1973 ◽  
Vol 107 (958) ◽  
pp. 800-802 ◽  
Author(s):  
Philip W. Hedrick
Keyword(s):  
Genetic Variation ◽  
Frequency Dependent ◽  
Dependent Model ◽  
Frequency Dependent Model

scholarly journals MAINTENANCE OF GENETIC VARIATION WITH A FREQUENCY-DEPENDENT SELECTION MODEL AS COMPARED TO THE OVERDOMINANT MODEL

Genetics ◽  
1972 ◽  
Vol 72 (4) ◽  
pp. 771-775 ◽  
Author(s):  
Philip W Hedrick
Keyword(s):  
Genetic Variation ◽  
Finite Population ◽  
Selection Model ◽  
Frequency Change ◽  
Fourth Moment ◽  
Frequency Dependent ◽  
Frequency Dependent Selection ◽  
Infinite Population ◽  
Dependent Model ◽  
Frequency Dependent Model

ABSTRACT A frequency-dependent selection model proposed by Huang, Singh and Kojima (1971) was found to be more effective at maintaining genetic variation in a finite population than the overdominant model. The fourth moment parameter of the distribution of unfixed states showed that there was a more platykurtic distribution for the frequency-dependent model. This agreed well with the expected gene frequency change found for an infinite population.

Nonlinear Frequency-Dependent Model for Microinductors With Magnetic Core

2013 ◽  
Vol 34 (2) ◽  
pp. 304-306 ◽  
Author(s):  
Steven Gaskill ◽  
Andrei Papou ◽  
Anuraag Mohan ◽  
William French ◽  
Andreas Weisshaar
Keyword(s):  
Magnetic Core ◽  
Nonlinear Frequency ◽  
Frequency Dependent ◽  
Dependent Model ◽  
Frequency Dependent Model

scholarly journals Time- and frequency-dependent model of time-resolved coherent anti-Stokes Raman scattering (CARS) with a picosecond-duration probe pulse

2014 ◽  
Vol 140 (2) ◽  
pp. 024316 ◽  
Author(s):  
Hans U. Stauffer ◽  
Joseph D. Miller ◽  
Mikhail N. Slipchenko ◽  
Terrence R. Meyer ◽  
Benjamin D. Prince ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Probe Pulse ◽  
Frequency Dependent ◽  
Time Resolved ◽  
Dependent Model ◽  
Frequency Dependent Model ◽  
Anti Stokes

The Migration Concept for Ionic Motion in Materials With Disordered Structures

2002 ◽  
Vol 756 ◽  
Author(s):  
K. Funke ◽  
R. D. Banhatti
Keyword(s):  
Rate Equations ◽  
Ion Dynamics ◽  
Frequency Dependent ◽  
Elementary Processes ◽  
Disordered Structures ◽  
Ionic Motion ◽  
Dependent Model ◽  
Particle Process ◽  
Mobile Ions ◽  
Frequency Dependent Model

ABSTRACTThe dynamics of the mobile ions in materials with disordered structures are a challengingly complicated many-particle process. In this paper, we consider characteristic frequency-dependent conductivities and permittivities of such materials and show that they can be well reproduced within the framework of the MIGRATION concept. The meaning of the acronym is MIsmatch Generated Relaxation for the Accommodation and Transport of IONs. In the MIGRATION concept, we attempt to grasp the essence of the ion dynamics in a simple set of rules which convey a physical picture of the most relevant elementary processes. The rules are expressed in terms of three coupled rate equations which then form the basis for deriving frequency-dependent model conductivities and permittivities.

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