نتایج جستجو برای: evolution
تعداد نتایج: 341553 فیلتر نتایج به سال:
Determining the optimal location of wells with the aid of an automated search algorithm is a significant and difficult step in the reservoir development process. It is a computationally intensive task due to the large number of simulation runs required. Therefore,the key issue to such automatic optimization is development of algorithms that can find acceptable solutions with a minimum numbe...
Evolutionary theorists since Darwin have been interested in the parallels and interactions between biological and cultural evolution. Recent applications of empirical techniques originally developed to analyze molecular genetic data to linguistic data offer new insights into the historical evolution of language, revealing fascinating parallels between language change and biological evolution. T...
The purpose of this paper is to explore the significance for legal thought of recent developments in evolutionary theory which are associated with the notion of ‘memetics’. ‘Memetics’ aims to account for processes of cultural transmission and change using a version of the ‘genetic metaphor’. This is the idea that patterns of cultural evolution are closely analogous to those which occur in the n...
Lightweight Structural Summarization as an Aid to Software Evolution
This study presents the results of a 19-item questionnaire distributed to all high school biology departments in the state of Ohio. The results indicated that Ohio high school biology teachers are far more likely to support the teaching of evolution, and far less likely to support the teaching of creationism than is the public at large. Most biology courses in the state include some evolutionar...
In this paper we consider a kind of higher-order evolution equation as^{kt^{k} + ^{k&minus1}u/t^{k&minus1} +• • •+ut &minus{delta}u= f (u, {delta}u,x). For this equation, we investigate nonglobal solution, blow-up in finite time and instantaneous blow-up under some assumption on k, f and initial data. In this paper we employ the Test function method, the eneralized convexity method an...
One of the new area of research emerging in the field of statistics is the shape analysis. Shape is defined as all the geometrical information of an object whose location, scale and orientation is not of interest. Diffusion in shape analysis can be studied via either perturbation of the key coordinates identifying the initial object or random evolution of the shape itself. Reviewing the f...
The meiotic chromosomes of 10 species (Pohlia elongata, Anomobryum cymbifolium, Brachymenium acuminatum, B. ochianum, B. sikkimense, Bryum cellulare, B. pseudotriquetrum, B. apiculatum, B. capillare and B. atrovirense), in four genera of the family Bryaceae of acrocarpous mosses are studied with special emphasis on their evolution, polyploidy and cytological features with reference to interrela...
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