After presenting the foundation and the basic equations of a new 5-dimensional projective unified field theory, the problem of incorporating spinor fields into this framework is investigated. Apart from Pauli's method, we propose a new approach which leads to a consistent 5-dimensional spinor theory with a series of physical consequences (variability of the 4-dimensional “rest mass,” instability of 4-dimensional “stationary states,” etc.).

According to the great discovery by e. noether in 1918 there exists an intrinsic connection between the mathematical symmetries of the laws of nature and the conservation laws. the two kinds of symmetries, namely the continuous and the discrete ones, are discussed. the physical background of these symmetries is illustrated. finally, we sketch some topical conservation problems in elementary particle physics.

As a distortion of God's created designs, sexual abuse carries a unique devastation-factor. Abuse that is sexual in nature damages a spectrum of internal and external aspects of personhood. In particular, the core realities of: self-identity, community, and spiritual communion with God can be deeply fractured through SA. In light of the significance of the image of God, movement toward healing includes strengthening personal agency, processing profound boundary ruptures, and managing disillusionment with God. Due to the multi-faceted trauma of sexual (...) abuse spiritual formation programs must not only plan for the unique profile of abuse victims, but also need to incorporate a fuller understanding and praxis of the realities of embodiment, ritual, and theocentric metaphor into their transformational goals. Analysis includes first-person experience, anthropological science, and theological reflection. (shrink)

Comprehensive evaluation and study of man's theories and knowledge of genetical characteristics and the evolutionary processes.

Explores the development of the ideas of evolutionary biology, particularly as affected by the increasing understanding of genetics and of the chemical basis of inheritance.

Published just after the Second World War, European Literature and the Latin Middle Ages is a sweeping exploration of the remarkable continuity of European literature across time and place, from the classical era up to the early nineteenth century, and from the Italian peninsula to the British Isles. In what T. S. Eliot called a "magnificent" book, Ernst Robert Curtius establishes medieval Latin literature as the vital transition between the literature of antiquity and the vernacular literatures of later centuries. (...) The result is nothing less than a masterful synthesis of European literature from Homer to Goethe. European Literature and the Latin Middle Ages is a monumental work of literary scholarship. In a new introduction, Colin Burrow provides critical insights into Curtius's life and ideas and highlights the distinctive importance of this wonderful book. (shrink)

Provides a philosophical analysis of such biological concepts as natural selection, adaptation, speciation, and evolution.

I analyze a number of widespread misconceptions concerning species. The species category, defined by a concept, denotes the rank of a species taxon in the Linnaean hierarchy. Biological species are reproducing isolated from each other, which protects the integrity of their genotypes. Degree of morphological difference is not an appropriate species definition. Unequal rates of evolution of different characters and lack of information on the mating potential of isolated populations are the major difficulties in the demarcation of species taxa.

In the Preface of Animal Species and Evolution (1963), I wrote that it was "an attempt to summarize and review critically what we know about the biology and genetics of animal species and their role in evolution." The result was a volume of XIV ...

This collection of revised and new essays argues that biology is an autonomous science rather than a branch of the physical sciences. Ernst Mayr, widely considered the most eminent evolutionary biologist of the 20th century, offers insights on the history of evolutionary thought, critiques the conditions of philosophy to the science of biology, and comments on several of the major developments in evolutionary theory. Notably, Mayr explains that Darwin's theory of evolution is actually five separate theories, each with its (...) own history, trajectory and impact. Ernst Mayr, commonly referred to as the "Darwin of the 20th century" and listed as one of the top 100 scientists of all-time, is Professor Emeritus at Harvard University. What Makes Biology Unique is the 25th book he has written during his long and prolific career. His recent books include This is Biology: The Science of the Living World (Belknap Press, 1997) and What Evolution Is (Basic Books, 2002). (shrink)

Provides a thorough overview of historical and contemporary theories of evolution, discusses key concepts and terms, and argues that our understanding of evolution has changed the beliefs and values of modern humankind. Reprint. 30,000 first printing.