This book explores the history of abstract algebra. It shows how abstract algebra has arisen in attempting to solve some of these classical problems, providing a context from which the reader may gain a deeper appreciation of the mathematics involved.

The first comprehensive publication exploring the life and art of pioneering American abstract artist Alice Trumbull Mason is perfect for audiences eager to discover unsung yet brilliantly talented women artists. A groundbreaking artist, Alice Trumbull Mason (1904-1971) was one of the earliest painters of the twentieth century to embrace abstract painting in America. Mason's early paintings have been compared to those of Gorky, Kandinsky, and Miró, and in 1936 she became a founding member of the American Abstract Artists (AAA) and one of its leaders in the promotion of abstract work by artists such as Josef Albers, Ad Reinhardt, Piet Mondrian, and many others. Mason was a true artist's artist whose efforts helped lead to the great movements of later twentieth-century art, such as Abstract Expressionism, Pop Art, Post-Modernism, and Conceptual Art. Alice Trumbull Mason features essays that illuminate and contextualize the artist's multifaceted work and personal life through her paintings, prints, poetry, and letters. The book reveals the full life story of a seminal abstractionist, making a sound argument for adding her to the annals of great twentieth-century artists.

The present monograph is the fourth of six volumes which review the Hypotricha, a major group of the spirotrichs. The book is about the Gonostomatidae, the Kahliellidae, and some taxa of unknown position in the hypotrichs. Gonostomum was previously misclassified in the Oxytrichidae because its type species Gonostomum affine has basically an 18-cirri pattern, which is dominant in the oxytrichids. A new hypothesis, considering also molecular data, postulates that this 18-cirri pattern evolved in the last common ancestor of the hypotrichs and therefore it appears throughout the Hypotricha tree. The simple dorsal kinety pattern, composed of only three bipolar dorsal kineties, and gene sequence analyses strongly suggest that Gonostomum branches off rather early in the phylogenetic tree. Thus, the Gonostomatidae, previously synonymised with the oxytrichids, are reactivated to include the name-bearing type genus and other genera (e.g., Paragonostomum, Wallackia, Cladotricha) which have the characteristic gonostomatid oral apparatus. The Kahliellidae are a rather vague group mainly defined via the preservation of parts of the parental infraciliature. The kahliellids preliminary comprise, besides the name-bearing type genus Kahliella, genera such as Parakahliella and its African pendant Afrokahliella or the monotypic Engelmanniella. In total 68 species distributed in 21 genera and subgenera are revised. As in the previous volumes almost all morphological, morphogenetic, molecular, faunistic, and ecological data, scattered in almost 700 papers, are compiled so that the four volumes (Oxytrichidae, Urostyloidea, Amphisiellidae and Trachelostylidae, Gonostomatidae and Kahliellida) provide a detailed insight into the biology of almost 500 species of hypotrichs. The series is an up-to-date overview about this highly interesting taxon of spirotrichous ciliates mainly addressed to taxonomists, cell biologists, ecologists, molecular biologists, and practitioners.

Opening -- Part I. Metarealism. How the real world became a fable, or, The realities of social construction -- Part II. Process social ontology. Concepts in disintegration & strategies for demolition ; Process social ontology ; Social kinds -- Part III. Hylosemiotics. Hylosemiotics : the discourse of things -- Part IV. Knowledge and value. Zetetic knowledge ; The revaluation of values -- Conclusion : becoming metamodern.

This is the second book of a series treating the hypotrichs, a major part of the spirotrichous ciliates. It summarises 230 years of morphological, morphogenetic, faunistic, and ecological data, heretofore scattered in some 1,300 references around the world. The book provides taxonomists, cell biologists, and ecologists with a thorough survey supplying synonyms, nomenclature and systematics, and an extensive description of morphology and ecology, including almost all published records, for each species.