... is done. It does not seem to depend on interruption of the fibres actually conveying the afferent data, but on interruption of fine “C‐fibres” accompanying them and apparently having some organisational function. Video Population Internet Ecology A well‐produced and very welcome and useful...

...Mian‐yun Chen; Yi Lin; Hejing Xiong; Lu Caimei; Hao Yonghong; Wang Xuemeng Purpose The purpose of this paper is to apply grey system theory to population system and project China's population. Design/methodology/approach The paper applies the GM(1,1) model to China's population projections...

...Soucheng OuYang; Yi Lin In the community of “chaos” theory, a phenomenon, appearing in the study of a modified population evolutionary model, i.e. “one‐dimensional iteration”, under certain restrictions, is called “classical chaos”. In fact, the properties of this model can be discussed through...

...Chao Li; Soucheng OuYang; Yi Lin Based on the concept of blown‐ups of evolution, introduced by OuYang in 1995, for nonlinear models, the logistic model and its modification of population evolutions are analyzed analytically and numerically. Presents results that imply: (1) There does not exist...

... of the shell from control theory and gives an application of the equation to immigration control by the customs. © MCB UP Limited 1995 Cybernetics Entropy Population Systems theory Kybernetes 24,6 44 Short papers Modelling of a system boundary Hong-Xing Cao Chinese Academy of Meterological...

...R. PEREZ; M.A. GIL; P. GIL This paper is concerned with the problem of estimating the uncertainty associated with a variable in a finite population. The study of this problem leads to the following conclusion: The classical measure of uncertainty, Shannon's entropy, is not suitable for sampling...