Search Results - subject:"„mutations”"

A la recherche des certitudes perdues ... Anthropologie du travail et des affaires dans une Europe en mutation

Müller, Birgit - HAL - 1996

Actes des séminaires, automne et hiver 1994/95 ayant réuni, au Centre Marc Bloch à berlin, des chercheurs en sciences sociales de l'Europe de l'Ouest et de l'Est, sur la question des changements sociaux et économiques dans les usines et les entreprises.

Persistent link: https://www.econbiz.de/10008790794

NEUTRAL NETWORKS OF INTERACTING RNA SECONDARY STRUCTURES

ATTOLINI, CAMILLE STEPHAN-OTTO; STADLER, PETER F. - In: Advances in Complex Systems (ACS) 08 (2005) 02, pp. 275-283

secondary structures. We investigate the patterns of neutral mutations in RNAs whose function is the interaction with other RNAs …

Persistent link: https://www.econbiz.de/10004977685

Topological effects of fitness landscapes on the process of fixation of advantageous mutations

Oliveira, Viviane M. de; Campos, Paulo R.A. - In: Physica A: Statistical Mechanics and its Applications 346 (2005) 3, pp. 451-458

We investigate the dependence of the dynamics of fixation of advantageous mutations on the topology of fitness … for small to intermediate values of selective effect of beneficial mutations s, and another for high values of s. In the … former, the likelihood of ultimate fixation of advantageous mutations, when we consider uncorrelated or low correlated …

Persistent link: https://www.econbiz.de/10011062092

Dynamics of fixation of advantageous mutations

Oliveira, Viviane M. de; Campos, Paulo R.A. - In: Physica A: Statistical Mechanics and its Applications 337 (2004) 3, pp. 546-554

We investigate the process of fixation of advantageous mutations in an asexual population. We assume that the effect of … each new deleterious mutation reduces the fitness of the organism independent on the previous number of mutations. We use … function of the rate of deleterious mutations U, whereas the probability Pfix is a decreasing function of U. The mean value …

Persistent link: https://www.econbiz.de/10011061768

Contagion and State Dependent Mutations

Lee, In Ho; Szeidl, Adam; Valentinyi, Akos - In: Advances in Theoretical Economics 3 (2003) 1

Early results of evolutionary game theory showed that the risk dominant equilibrium is uniquely selected in the long run under the best-response dynamics with mutation. Bergin and Lipman (1996) qualified this result by showing that for a given population size, the evolutionary process can select...

Persistent link: https://www.econbiz.de/10014588988

Contagion and State Dependent Mutations

Lee, In Ho; Szeidl, Adam; Valentinyi, Akos - In: Advances in Theoretical Economics 3 (2003) 1, pp. 1063-1063

Persistent link: https://www.econbiz.de/10005178509

Secondary Structure Prediction for Aligned RNA Sequences

Hofacker, Ivo l.; Fekete, Martin; Stadler, Peter F. - Santa Fe Institute - 2001

Most functional RNA molecules have characteristic secondary structures that are highly conserved in evolution. Here we present a method for computing the consensus structure of a set aligned RNA sequences taking into account both thermodynamic stability and sequence covariation. Comparison with...

Persistent link: https://www.econbiz.de/10005790892

Stochastic Evolution with Slow Learning.

Beggs, A. - Department of Economics, Oxford University - 2000

This paper studies the extent to which diffusion approximations provide a reliable guide to equilibrium selection results in finite games. It is shown that they do for a class of finite games with weak learning provided that limits are taken in a certain order. The paper also shows that making...

Persistent link: https://www.econbiz.de/10005047749

Analysis of DNA sequences using methods of statistical physics

Buldyrev, S.V.; Dokholyan, N.V.; Goldberger, A.L.; … - In: Physica A: Statistical Mechanics and its Applications 249 (1998) 1, pp. 430-438

We review the present status of the studies of DNA sequences using methods of statistical physics. We present evidence, based on systematic studies of the entire GenBank database, supporting the idea that the DNA sequence in genes containing noncoding regions is correlated, and that the...

Persistent link: https://www.econbiz.de/10010871874

Model of unequal chromosomal crossing over in DNA sequences11This work is supported by NIH-HGP.

Dokholyan, Nikolay V.; Buldyrev, Sergey V.; Havlin, Shlomo - In: Physica A: Statistical Mechanics and its Applications 249 (1998) 1, pp. 594-599

It is known that some dimeric tandem repeats (DTR) are very abundant in noncoding DNA. We find that certain DTR length distribution functions in noncoding DNA can be fit by a power law function. We analyze a simplified model of unequal chromosomal crossing over and find that it produces a stable...

Persistent link: https://www.econbiz.de/10011059603