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As eyes are like windows to the soul, writing is like a door. You get more than a glimpse; you are being invited into a person's innermost thoughts, desires and dreams.Percy Glover has seen and experienced a lot in life, and has proven time and again that your current position does not dictate your future success.-- Danielle E. Ward, author of Warning Signs: what every woman should know
Marxist geographer and professor of anthropology and geography at the Graduate
The Voronoi diagram of a set of sites is a partition of the plane into regions, one to each site, such that the region of each site contains all points of the plane that are closer to this site than to the other ones. Such partitions are of great importance to computer science and many other fields. The challenge is to compute Voronoi diagrams quickly. The problem is that their structure depends on the notion of distance and the sort of site. In this book the author proposes a unifying approach by introducing abstract Voronoi diagrams. These are based on the concept of bisecting curves, which are required to have some simple properties that are actually possessed by most bisectors of concrete Voronoi diagrams. Abstract Voronoi diagrams can be computed efficiently and there exists a worst-case efficient algorithm of divide-and-conquer type that applies to all abstract Voronoi diagrams satisfying a certain constraint. The author shows that this constraint is fulfilled by the concrete diagrams based on large classes of metrics in the plane.
The book presents an integral Marxist conception of the dialectics and methodology of scientific theoretical cognition, of the dialectical interrelation between the abstract and the concrete, of the unity of the historical and the logical, of the correlat
This up-to-date introductory treatment employs category theory to explore the theory of structures. Its unique approach stresses concrete categories and presents a systematic view of factorization structures, offering a unifying perspective on earlier work and summarizing recent developments. Numerous examples, ranging from general to specific, illuminate the text. 1990 edition, updated 2004.
In recent years knowledge of concrete and concrete structures has increased, as has its applications. New types of concrete challenged scientists and engineers, and ecological constraints encouraged the implementation of life cycle design of concrete structures, moving the focus more and more to maintenance and uprating of structures. And since bui
The book is intended as an invitation to the topic of relations on a rather general basis. It fills the gap between the basic knowledge offered in countless introductory papers and books (usually comprising orders and equivalences) and the highly specialized monographs on mainly relation algebras, many-valued (fuzzy) relations, or graphs. This is done not only by presenting theoretical results but also by giving hints to some of the many interesting application areas (also including their respective theoretical basics).This book is a new — and the first of its kind — compilation of known results on binary relations. It offers relational concepts in both reasonable depth and broadness, and also provides insight into the vast diversity of theoretical results as well as application possibilities beyond the commonly known examples.This book is unique by the spectrum of the topics it handles. As indicated in its title these are:
Radical political shifts that raged throughout Cuba in the 1950s coincided with the development of Cuban geometric abstraction and, notably, the formation of Los Diez Pintores Concretos (Ten Concrete Painters). The decade was marked by widespread turmoil and corruption following the 1952 military coup and by rising nationalist sentiments. At the same time, Havana was undergoing rapid urbanization and quickly becoming an international city. Against this vibrant backdrop, artists sought a new visual language in which art, specifically abstract art, could function as political and social practice. Concrete Cuba marks one of the first major presentations outside of Cuba to focus exclusively on the origins of concretism in the country. It includes important works from the late 1940s through the early 1960s by the twelve artists who were at different times associated with the short-lived group: Pedro Álvarez, Wifredo Arcay, Mario Carreño, Salvador Corratgé, Sandú Darié, Luis Martínez Pedro, Alberto Menocal, José M. Mijares, Pedro de Oraá, José Ángel Rosabal, Loló Soldevilla, and Rafael Soriano. Many of the group’s members had traveled widely in the preceding years and corresponded with those at the forefront of European and South American abstract movements. Produced on the occasion of the major exhibition at David Zwirner, Concrete Cuba is the first in-depth catalogue on the subject to be published in English; the show offered a “wonderful taste of a very complicated history,” according to Roberta Smith of The New York Times. With an extensive plate section, which includes works from the exhibition and a selection of important pieces from the permanent collection of Museo Nacional de Bellas Artes, Havana, this volume provides readers with a rich visual experience of this crucial period in modernism’s history. The catalogue also features an extensively researched illustrated chronology, compiled by Susanna Temkin, which tracks the development of the period artistically and politically from 1939 through 1964. New scholarship by Abigail McEwen offers an interpretative framework for this group of artists, and a deeper understanding of the forces behind the development of this movement. Also included is a conversation between Lucas Zwirner and Pedro de Oraá, one of the central members of Los Diez.