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Statistical analysis on the evolution of OpenStreetMap road networks in Beijing

Zhao, Pengxiang; Jia, Tao; Qin, Kun; Shan, Jie; Jiao, … - In: Physica A: Statistical Mechanics and its Applications 420 (2015) C, pp. 59-72

evolution of OSM road networks in Beijing, China, from four aspects. First, findings from general analysis indicate that (1) the … indicate that (5) OSM road networks resemble the growth of real road networks and are undergoing an evolution process depicted … evolution process of continuous strong exploration accompanied by weak densification. …

Persistent link: https://www.econbiz.de/10011117885

Analyzing the structure of earthquake network by k-core decomposition

He, Xuan; Zhao, Hai; Cai, Wei; Li, Guang-Guang; Pei, … - In: Physica A: Statistical Mechanics and its Applications 421 (2015) C, pp. 34-43

of earthquake networks. On observation of the evolution of the maximum coreness, it is found that it has some sudden …

Persistent link: https://www.econbiz.de/10011194069

Computer simulation of arising of diploid genomes

Tretyakov, Victor S.; Tretyakov, Nikolay P. - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 16, pp. 4215-4222

The haploid–diploid cycle where, under unfavorable conditions the population becomes diploid, is modeled by a Monte-Carlo method in the framework of the Jan–Stauffer–Moseley hypothesis. Diploidy and sex may have first arisen as a way to escape death, when a simple unicellular individual is...

Persistent link: https://www.econbiz.de/10010872040

Protein folding as an evolutionary process

Sharma, Vivek; Kaila, Ville R.I.; Annila, Arto - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 6, pp. 851-862

surrounding density-in-energy. Evolution toward more probable states, eventually attaining the stationary state, naturally selects …

Persistent link: https://www.econbiz.de/10010872071

Evolutionary computer simulations

Oliveira, Paulo Murilo Castro de - In: Physica A: Statistical Mechanics and its Applications 306 (2002) C, pp. 351-358

during the process, in order to study its long-term consequences. Second, evolution necessarily follows a critical dynamics …

Persistent link: https://www.econbiz.de/10010872083

A nice wrong model for the evolution of DNA base frequencies

Lobry, J.R - In: Physica A: Statistical Mechanics and its Applications 273 (1999) 1, pp. 99-102

Assuming that the evolution of DNA bases frequencies is governed by a symmetric process with respect to the two DNA …

Persistent link: https://www.econbiz.de/10010872789

Self organization in a minority game: the rôle of memory and a probabilistic approach

Burgos, E; Ceva, Horacio - In: Physica A: Statistical Mechanics and its Applications 284 (2000) 1, pp. 489-495

A minority game whose strategies are given by probabilities p, is replaced by a ‘simplified’ version that makes no use of memories at all. Numerical results show that the corresponding distribution functions are indistinguishable. A related approach, using a random walk formulation, allows...

Persistent link: https://www.econbiz.de/10010873280

Bit-string models for parasex

Moss de Oliveira, S; de Oliveira, P.M.C; Stauffer, D - In: Physica A: Statistical Mechanics and its Applications 322 (2003) C, pp. 521-530

We present different bit-string models of haploid asexual populations in which individuals may exchange part of their genome with other individuals (parasex) according to a given probability. We study the advantages of this parasex concerning population sizes, genetic fitness and diversity. We...

Persistent link: https://www.econbiz.de/10010874158

Universal mortality law and immortality

Azbel', Mark Ya. - In: Physica A: Statistical Mechanics and its Applications 341 (2004) C, pp. 629-637

Well-protected human and laboratory animal populations with abundant resources are evolutionarily unprecedented. Physical approach, which takes advantage of their extensively quantified mortality, establishes that its dominant fraction yields the exact law, which is universal for all animals...

Persistent link: https://www.econbiz.de/10010874414

Extremum properties of entropy to determine dynamics of growth and evolution in complex systems

Sieniutycz, Stanislaw - In: Physica A: Statistical Mechanics and its Applications 340 (2004) 1, pp. 356-363

. Evolution for animals with multiple organs is considered. A variational problem is that of maximum entropy subject to the …

Persistent link: https://www.econbiz.de/10010874787