And while I have sought to shew the naturalist how a few mathematical concepts and dynamical principles may help and guide him, I have tried to shew the mathematician a field for his labour—a field which few have entered and no man explored. Here may be found homely problems, such as often tax the highest skill of the mathematician, and reward his ingenuity all the more for their trivial associ...

A guide for those who wish to understand and to work with the hydro-geochemical equilibrium code CHESS together with introductory aspects of thermodynamic principles and surface com-plexation chemistry. The CHESS model was initially written at the Ecole des Mines de Paris within the framework of the R&D program on Management and Storage of Radioactive Waste

The five papers that comprise this special issue entitled ‘‘The conceptual change approach to mathematics learning and teaching,’’ attempt to demonstrate that the conceptual change approach can be a fruitful component of a theory of mathematical learning and instruction. Some of them focus on issues of learning i.e., on presenting evidence that the conceptual change approach provides a powerful...

We investigate the relation between two quantitative measures characterizing short term memory in input driven dynamical systems, namely the short term memory capacity (MC) [2] and the Fisher memory curve (FMC) [1]. We show that under some assumptions, the two quantities can be interpreted as squared ‘Mahalanobis’ norms of images of the input vector under the system’s dynamics and that even tho...

Der folgende Artikel gibt einen Kurzüberblick über ein Promotionsvorhaben im Bereich der Quantitativen Modellierung. In der Dissertation soll die Modellierungsmethodik FMC-QE (Fundamental Modeling Concepts for Quantitative Evaluation) beschrieben werden. FMC-QE basiert auf der Modellierungssprache FMC sowie den Modellierungsund Berechnungsmethoden der Warteschlangentheorie und der Zeitbehaftete...

Teaching mathematics in a high school and in a community college in the New York City, I have noticed that students grasp mathematical concepts more quickly and understand them better when a connection between the concept and the world of business is established. Students were visibly more interested and involved when business applications were presented first, laying the groundwork for technol...

Fixed–mobile convergence (FMC) is a radical innovation for telecommunication companies because it requires them to move into unknown territories that are beyond traditional business lines and underlying technologies. In the meantime, understanding what types of telecommunication companies are better at doing business through the early adoption of FMC has become increasingly important in the con...

happiness is among the concepts which were subject of empirical studies in 1960s. this concept has been used interchangeably with such concepts as joy, satisfaction with life and the like. while meaningfully correlating with the feeling of joy and satisfaction with life, as indicated by numerous researches, the feeling of happiness is affected by different factors and situations. the present re...

Objective: The objective of the article is to refer thesis about need modify main paradigm economic sciences - by which we mean mainstream economics with all its consequences that influence whole sciences. We posit for modification how are practiced in ontological, epistemological, and methodological aspects. results from impact several factors appeared even pre-pandemic period, Covid-19 may be...