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الصفحة 4
الصفحة 4
Algèbre, Chapitres 1 à 3 = Algebra, Chapters 1 to 3
To do algebra is essentially to calculate, that is to say to perform, on elements of a set, (<algebraic operations n, the best-known example of which is provided by the (<four rules)) of elementary arithmetic. This is not the place to retrace the slow process of progressive abstraction by which the notion of algebraic operation, initially restricted to natural integers and to measurable quantities, gradually widened its field, as it grew. at the same time generalized the notion of ((number O, until, going beyond the latter, it came to apply to elements which no longer had any character ((numeric)>, for example to permutations of a - seems (see Historical Note in chap. 1).
Acid Rain - Deposition to Recovery
Acid rain is still with us. Although it is a problem that people have worked diligently to solve, there are still many problem areas throughout the world. In reality the focus of acid rain research has shifted, and this book adds new vision to the topic. It contains papers, selected from Acid Rain 2005, the 7th International Conference on Acid Deposition, that take a broad perspective of the issues, emphasizing a number of themes: - the emission, concentration and deposition of pollutants / - nitrogen and trace elements in ecosystems and their effects on forests, water and soil / - studies of material damage and recovery - critical loads / The book is aimed at scientists and researchers who are working in the area of acid rain and its effects, and on nutrient cycling. This latest research will be of value to those concerned with the mitigation of acid rain effects.
A Pan-Chromatic View of Clusters of Galaxies and the Large-Scale Structure
The reviews presented in this volume cover a wide-range of cluster of galaxies topics like the physics of the ICM gas, the internal cluster dynamics, the detection of clusters using different observational techniques, the great advances in analytical or numerical modeling of clusters, weak and strong lensing effects, the large scale structure as traced by clusters, the cosmological significance of clusters as well as the formation and evolution of clusters within the new cosmological paradigm.
25 Years of Transformations of Higher Education Systems in Post-Soviet Countries : Reform and Continuity
A result of the first ever study of the transformations of the higher education institutional landscape in fifteen former USSR countries after the dissolution of the Soviet Union in 1991. It explores how the single Soviet model that developed across the vast and diverse territory of the Soviet Union over several decades has evolved into fifteen unique national systems, systems that have responded to national and global developments while still bearing some traces of the past. The book is distinctive as it presents a comprehensive analysis of the reforms and transformations in the region in the last 25 years; and it focuses on institutional landscape through the evolution of the institutional types established and developed in Pre-Soviet, Soviet and Post-Soviet time. It also embraces all fifteen countries of the former USSR, and provides a comparative analysis of transformations of institutional landscape across Post-Soviet systems.
