Philip R. Larson's Books

The Vascular Cambium

Development and Structure

By: Philip R. Larson

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The Vascular Cambium

Development and Structure

By: Philip R. Larson

The cambium has been variously defined as follows: "The actively dividing layer of cells that lies between, and gives rise to, secondary xylem and phloem (vascular cambium)" (IAWA 1964); "A meristem with products of periclinal divisions commonly contributed in two directions and arranged in radial files. Term pre ferably applied only to the two lateral meristems, the vascular cambium and cork cambium, or phellogen" (Esau 1977); and, "Lateral meristem in vascular plants which produces secondary xylem, secondary phloem, and parenchyma, usually in radial rows; it consists of one layer of initials and their undifferentiated deriva tives" (Little and Jones 1980). Clearly, the cambium is a diverse and extensive meristem, and no one defini tion will encompass all manifestations of what anatomists consider cambium. Its diversity and extent are further exemplified by a single plant, such as a temperate zone tree, in which procambium is initiated in the embryo and perpetuated throughout every lateral, primary meristem before giving rise to cambium in the secondary body. The cambium thereafter performs its meristematic task of producing daughter cells that differentiate to specialized tissue systems. The cam bium, however, does not remain static. Its derivatives vary either in form, or TImc tion, or rate of production at different positions on the tree, with age of the tree, and with season of the year. Moreover, the cambium responds both to internal sig nals and to external stimuli such as environment or wounding.

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Page Count

737

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642784666

ISBN 13

9783642784668

The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies

Proceedings of the 126th Symposium of the International Astronomical Union, Held in Cambridge, Massachusetts, U.S.A., August 25–29, 1986

By: Jonathan E. Grindlay,A.G. Davis Philip

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The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies

Proceedings of the 126th Symposium of the International Astronomical Union, Held in Cambridge, Massachusetts, U.S.A., August 25–29, 1986

By: Jonathan E. Grindlay,A.G. Davis Philip

In the centennial year, 1985-86, of Harlow Shapley's birth, the study of globular clusters was no less important to the development of astronomy than in 1915, when Shapley first noted their concentration on the sky. By 1917 Shapley had used the properties of the system of globular clusters to complete the Copernican revolution and locate the solar system, and its Earth-bound observers, far from the center of the Galaxy and the globular cluster distribution. Seven decades later, in the year of these proceedings, globular cluster research and the study of the system of globular clusters in our own and distant galaxies is undergoing a renaissance of activity. The introduction of new observational tools, particularly CCD imagers and digital spectrographs, as well as powerful theoretical methods have transformed the study of globular clusters into one of the main line areas of modern astrophysics. Thus it seemed particularly appropriate to one of us, when considering how the Harvard College Observatory might mark the Shapley centennial, to propose and plan for an IAU Symposium on Globular Cluster Systems in Galaxies. Planning for the Shapley Symposium, as it came to be called, was even more drawn out than the preparation of this volume. The Symposium was originally proposed to the IAU Secretariat in time for it to be held in August, 1985, so that it might occur in the centennial (calendar) year.

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767

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Springer Science & Business Media

Published Date

ISBN 10

9401511047

ISBN 13

9789401511049

Connectionism and Psychology

A Psychological Perspective on New Connectionist Research

By: Philip T. Quinlan

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Connectionism and Psychology

A Psychological Perspective on New Connectionist Research

By: Philip T. Quinlan

The rapid growth of neural network research has led to a major reappraisal of many fundamental assumptions in cognitive and perceptual psychology. This text—aimed at the advanced undergraduate and beginning postgraduate student—is an in-depth guide to those aspects of neural network research that are of direct relevance to human information processing. Examples of new connectionist models of learning, vision, language and thought are described in detail. Both neurological and psychological considerations are used in assessing its theoretical contributions. The status of the basic predicates like exclusive-OR is examined, the limitations of perceptrons are explained and properties of multi-layer networks are described in terms of many examples of psychological processes. The history of neural networks is discussed from a psychological perspective which examines why certain issues have become important. The book ends with a general critique of the new connectionist approach. It is clear that new connectionism work provides a distinctive framework for thinking about central questions in cognition and perception. This new textbook provides a clear and useful introduction to its theories and applications.

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320

Publisher

University of Chicago Press

Published Date

ISBN 10

0226699609

ISBN 13

9780226699608

Adventures in the Spirit

God, World, Divine Action

By: Philip Clayton

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Adventures in the Spirit

God, World, Divine Action

By: Philip Clayton

In Adventures in the Spirit, respected and influential theologian Philip Clayton argues that two major intellectual movements of our day-panentheism and emergence-are converging and that together they offer exciting new vistas for theological reflection. On the one hand, over the last decades many theologians have been re-conceiving the God-world relation panentheistically, affirming a radical indwelling of God within the world and the world within God. On the other hand, scientists have begun to abandon the reductionist ideology that characterized much of the modern period, with a new emphasis on emergence. Their study of how new, novel structures and entities arise throughout the evolutionary process yields a much more open-ended, holistic vision of reality, Clayton argues.

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322

Publisher

Fortress Press

ISBN 10

1451416040

ISBN 13

9781451416046

Basin Analysis

Principles and Application to Petroleum Play Assessment

By: Philip A. Allen,John R. Allen

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Basin Analysis

Principles and Application to Petroleum Play Assessment

By: Philip A. Allen,John R. Allen

Basin Analysis is an advanced undergraduate and postgraduate text aimed at understanding sedimentary basins as geodynamic entities. The rationale of the book is that knowledge of the basic principles of the thermo-mechanical behaviour of the lithosphere, the dynamics of the mantle, and the functioning of sediment routing systems provides a sound background for studying sedimentary basins, and is a pre-requisite for the exploitation of resources contained in their sedimentary rocks. The third edition incorporates new developments in the burgeoning field of basin analysis while retaining the successful structure and overall philosophy of the first two editions. The text is divided into 4 parts that establish the geodynamical environment for sedimentary basins and the physical state of the lithosphere, followed by a coverage of the mechanics of basin formation, an integrated analysis of the controls on the basin-fill and its burial and thermal history, and concludes with an application of basin analysis principles in petroleum play assessment, including a discussion of unconventional hydrocarbon plays. The text is richly supplemented by Appendices providing mathematical derivations of a wide range of processes affecting the formation of basins and their sedimentary fills. Many of these Appendices include practical exercises that give the reader hands-on experience of quantitative solutions to important basin analysis processes. Now in full colour and a larger format, this third edition is a comprehensive update and expansion of the previous editions, and represents a rigorous yet accessible guide to problem solving in this most integrative of geoscientific disciplines. Additional resources for this book can be found at: www.wiley.com/go/allen/basinanalysis.

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Page Count

645

Publisher

John Wiley & Sons

Published Date

ISBN 10

1118450302

ISBN 13

9781118450307

Tourists, Tourism and the Good Life

By: Philip Pearce,Sebastian Filep,Glenn Ross

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Tourists, Tourism and the Good Life

By: Philip Pearce,Sebastian Filep,Glenn Ross

The recent surge in positive psychology has tremendous potential to augment current tourism study. This book examines the linkages between tourists, tourism and positive psychology and will interest those who study and practise tourism as well as scholars in a range of disciplines such as psychology, business and sociology.

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Page Count

243

Publisher

Routledge

Published Date

ISBN 10

1136930272

ISBN 13

9781136930270

Book's by Philip R. Larson

The Vascular Cambium

The Vascular Cambium

The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies

The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies

Connectionism and Psychology

Connectionism and Psychology

Adventures in the Spirit

Adventures in the Spirit

Basin Analysis

Basin Analysis

Tourists, Tourism and the Good Life

Tourists, Tourism and the Good Life

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