Applications of operant techniques in treatment and education have proliferated in recent years. Among the various techniques, the token economy has been particu larly popular. The token economy has been extended to many populations included in psychiatry, clinical psychology, education, and the mental health fields in general. Of course, merely because a technique is applied widely does not neces sarily argue for its efficacy. Yet, the token economy has been extensively re searched. The main purpose of this book is to review, elaborate, and evaluate critically research bearing on the token economy. The book examines several features of the token economy including the variables that contribute to its efficacy, the accomplishments, limitations, and potential weaknesses, and recent advances. Because the token economy literature is vast, the book encompasses programs in diverse treatment, rehabilitation, and educational settings across a wide range of populations and behaviors. Within the last few years, a small number of books on token economies have appeared. Each of these books describes a particular token economy in one treatment ,etting, details practical problems encountered, and provides suggestions for ad ministering the program. This focus is important but neglects the extensive scholarly research on token economies. The present book reviews research across diverse settings and clients. Actually, this focus is quite relevant for implementing token economies because the research reveals those aspects and treatment variations that contribute to or enhance client performance.

The Token Economy: A Review and Evaluation (The Plenum Behavior Therapy Series)

Kazdin, Alan E.

Parenting & Relationships

Springer-Verlag New York, Incorporated

This book presents a review of those efforts that have been and are being made to determine the geochemical composition of the moon and planets. The authors have attempted to present both a review as well as their philosophy about the development of flight experiments for geo chemical studies. Their basic premise is that such flight experiments should emphasize the scientific objectives and a total systems approach to meeting these objectives, involving the analytical device, data handling and data interpretation. While the above seems reasonably obvious, many proposals of experiments often tend to begin with an instrument with too little concern about the constraints imposed and whether the data that can be obtained are sufficiently useful to meet the scientific objectives. This book covers the accomplishments in space science exploration, bearing on the history and composition ofthe solar system. 'It also covers the rationale behind the lunar and planetary exploration program. The latter part of the book is concerned with future plans for lunar and planetary exploration instrumentation and techniques in various stages of development. There is an exposition of the methods of remote analysis of the moon and planets, including some concepts developed by the authors as a result of their long term involvement with the space program, from its early inception to the present day preparation for remote geochemical analysis in the Apollo, Mariner and Viking missions.

Geochemical Exploration of the Moon and the Planets

I Adler

Hormones and Resistance Two Volumes

Selye, H.

Ex library book. Hardback in good condition. Spine solid. No dust jacket.

Artistry of the Mentally Ill

Prinzhorn, H.

Von Brockdorff, Eric (translator)

Arts & Photography

The Persian Gulf

Stability of Fluid Motions 2, Springer Tracts in Natural Philosophy Vol. 28

Joseph, D. D.

Since the first French edition of the book emphasized rather the solid facts of Cosmology than the detailed discussions of controversial results, relatively few revisions were necessary for the English edition. They were made early in 1979 and affected about 5% of the text. The main revisions referred to the distance scale, the dlstribution of galaxies, the X-ray observations of clusters, the cosmic time evolution of quasars and radiogalaxies and the 3 K radiation. A new short bibliography presents the recent articles and the latest proceedings of Symposia; from these the reader can easily trace a more complete list of refer­ ences. I am happy to thank Professor Beiglbock for suggestions he made to improve Part lIon Spaces of Constant Curvature, and Drs. S. and J. Mitton for translating the manuscript into English. I also thank with pleasure Marie-Ange Sevin for correcting the final version. J. Heidmann March 1980, Meudon, France Preface The aim of this book is to present the fundamentals of cosmology. Its subject is the study of the universe on a grand scale: - on a grand distance scale, since from the start, we shall be escaping the con­ fines of our own Galaxy to explore space as far as the limits of the observable universe, some ten thousand million light years away; - and on a grand time scale, as we shall look back into the past to the very first moments of the initial expansion, about twelve thousand million years ago.

Relativistic Cosmology: An Introduction

Science & Math

Heidmann, Jean

Astronomy & Space Science

This book presents a comprehensive, unified view of the obseving methods and tools of contemporary astrophysics. The collection of information coming from the celestial sources, the methods to process it, the fundamental laws of physics which control it are the subject of the book. Recent development in spatial interometry, new detectors, image restauration methods are presented. The level is for graduate students and researchers in astrophysics or in engineering.

Observational Astrophysics (Astronomy and Astrophysics Library)

Lena, P.

This book is a collection of the finalized versions of the papers presented at the third Eurographics Workshop on Graphics Hardware. The diversity of the contributions reflects the widening range of options for graphics hardware that can be exploited due to the constant evolution of VLSI and software technologies. The first part of the book deals with the algorithmic aspects of graphics systems in a hardware-oriented context. Topics are: VLSI design strategies, data distribution for ray-tracing, the advantages of point-driven image generation with respect to VLSI implementation, use of memory and ease of parallelization, ray-tracing, and image reconstruction. The second part is on specific hardware, on content addressable memories and voxel-based systems. The third part addresses parallel systems: massively parallel object-based architectures, two systems in which image generated by individual rendering systems are composited, a transputer-based parallel display processor.

Advances in Computer Graphics Hardware III (Eurographic Seminars)

Computers & Technology

A.A.M. Kuijk

Programming

This text gives a complete and comprehensive treatment of the physics of the stellar interior and the underlying fundamental processes and parameters. The models developed to explain the stability, dynamics and evolution of the stars are presented, and great care is taken to detail the various stages in a star's life. The authors have written a unique text based on their own pioneering work in stellar modeling. Since its publication, this textbook has come to be considered a classic by readers and teachers in astrophysics. This study edition is meant for graduate students in astronomy and physics alike.

Stellar Structure and Evolution

Kippenhahn, Rudolph

Weigert, A.

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