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The contemplation of truth and beauty is the proper object for which we were created, which calls forth the most intense desires of the soul, and of which it never tires -Hazlitt In his Nobel lecture Purcell commented that when he saw snow in New England after the discovery of NMR, it appeared like "heaps of protons quietly precessing in earth's magnetic field. " If he were to make the comment in the context of how NMR is being used today, he could have conjured up an image of hydrogen, carbon, and nitrogen nuclei in proteins of an earthbound 8rganism subtly orchestrating a quiet symphony of frequencies, from 150 Hz to 2 kHz, carrying clues to the three-dimensional structure of the macromolecules. The manner in which the basic discoveries of Bloch and Purcell have led to the emergence of NMR, several decades later, as a major technique of biological and medical physics (and chemistry) is a striking example of the power of basic research. It is also a fascinating saga whereby whenever it was felt that the field had reached a plateau, new directions, new technologies, and sometimes serendipity produced new developments that revolutionized the technique and enhanced its capability. As Richard Ernst points out "NMR is intellectually attractive, . . . the practical importance of NMR is enormous, and can justify much of the playful activities of an addicted spectroscopist" (Nobel lecture).

The study of nuclear dynamics is now in one of its most interesting phases. The investigation of this phase dia gram, including all of the interesting phase transitions predicted from theoretical grounds, is the focus of most of the theoretical and experimental investigations of nuclear dynamics conducted today.

''A must for anyone interested in metal-containing polymers and all its aspects.'' ---American Scientist ''Nicely organized...well-written....An excellent shapshot of the current state of this field.'' ---MRS Bulletin, July 1998

Progress in Cell Cycle Research is a new annual series designed to be the source for up-to-date research on this rapidly expanding field. Researchers as well as advanced undergraduate and graduate students in cell biology, biochemistry, and molecular biology will benefit from this series.

Energy recoil detection using high-energy heavy ions is unique in its ability to provide quantitative profiles of light and medium mass elements.

International researchers summarize the current understanding of peptic disease and trace the development of a novel new drug for peptic disease therapy-sucralfate. Articles discuss the history of sucralfate's development, mechanisms of action, clinical efficacy, and future directions for research.

The 39th Annual Denver X-Ray Conference on Applications of X-Ray Analysis was held July 30 -August 3, 1990, at the Sheraton Steamboat Resort and Conference Center, Steamboat Springs, Colorado.

Proceedings of a conference held at the New York University School of Medicine, New York City, December 8--9, 1989

Proceedings of the Third International Symposium on Neurotransmitter Receptors, held in Hiroshima, Japan, February 5--8, 1990

Research on metal-containing polymers began in the early 1960's when several workers found that vinyl ferrocene and other vinylic transition metal TI -complexes would undergo polymerization under the same conditions as conventional organic monomers to form high polymers which incorporated a potentially reactive metal as an integral part of the polymer structures. Some of these materials could act as semi­ conductors and possessed one or two dimensional conductivity. Thus applications in electronics could be visualized immediately. Other workers found that reactions used to make simple metal chelates could be used to prepare polymers if the ligands were designed properly. As interest in homogeneous catalysts developed in the late 60's and early 70's, several investigators began binding homogeneous catalysts onto polymers, where the advantage of homogeneous catalysis - known reaction mechanisms and the advantage of heterogeneous catalysis - simplicity and ease of recovery of catalysts could both be obtained. Indeed the polymer matrix itself often enhanced the selectivity of the catalyst. The first symposium on Organometallic Polymers, held at the National Meeting of the American Chemical Society in September 1977, attracted a large number of scientists interested in this field, both established investigators and newcomers. Subsequent symposia in 1977, 1979, 1983, and 1987 have seen the field mature. Hundreds of papers and patents have been published.

This book contains the proceedings of the 1989 Crafoord Symposium organized by the Royal Swedish Academy of Sciences. Van Allen, and his specially invited lecture: "Active Experiments in Magnetospheric Physics" follows in these proceedings two papers on the achievements of magnetospheric research hitherto.

Proceedings of a conference held in Plattsburgh, New York, May 25--26, 1989

The overall sequence is as follows: Genome structure, Gene Structure and Expression, Nucleolar Genes, Structure and Proteins, Chromatin and Nuclear Granules, Nuclear Matrix and Nuclear Proteins, Replication and Transcription and finally Nuclear Envelope and Nuclear Cytoplasmic Transport.

Proceedings of a Muscular Dystrophy Association International Conference held in New York City, June 10--12, 1989

This is the proceedings of the Sixth Symposium on Empirical Foundations of Information and Software Sciences (EFISS), which was held in Atlanta, Georgia, on October 19-21, 1988. The purpose of the symposia is to explore subjects and methods of scientific inquiry which are of common interest to information and software sciences, and to identify directions of research that would benefit from the mutual interaction of these two disciplines. The main theme of the sixth symposium was modeling in information and software engineering, with emphasis on methods and tools of modeling. The symposium covered topics such as models of individual and organizational users of information systems, methods of selecting appropriate types of models for a given type of users and a given type of tasks, deriving models from records of system usage, modeling system evolution, constructing user and task models for adaptive systems, and models of system architectures. This symposium was sponsored by the School of Information and Computer Science of the Georgia Institute of Technology and by the U.S. Army Institute for Research in Management Information, Communications, and Computer Sciences (AIRMICS). 17le Editors vii CONTENTS 1 I. KEYNOTE ADDRESS ............................................. .

This volume presents the contributions of the participants in the Sixth International Swarm Seminar, held August 2-5, 1989, at the Webb Institute in Glen Cove, New York.

The term biomimetic is comparatively new on the chemical scene, but the concept has been utilized by chemists for many years. In a simi lar manner, the term biomimetic polymers means creating synthetic poly mers which imitate the activity of natural bioactive polymers. Thus, biomimetic polymers imitate the life process in many ways.

in words the total experience While it is difficult to convey of this innovative therapeutic approach, this volume enables the reader to become a part of these therapy sessions and to learn to "know" and appreciate these fruitful methods.

The Plenary Session on x-ray analysis of thin films did not just happen this year but really began four years ago with Paul Predecki suggesting a special session devoted to thin film techniques. They were invited speakers for the 1985 special session on thin films and instructors for the 1987 workshop on epitaxial thin films.

The increasing application of integrated circuits in situations where high reliability is needed places a requirement on the manufacturer to use methods of testing to eliminate devices that may fail on service.

The papers in this book represent the proceedings for the International Conference on Oxygen Disorder Effects in High~Tc Superconductors, held April 18-21, 1989 at the International Centre for Theoretical Physics, Trieste, Italy.

This volume documents the proceedings of the Symposium on Polymers in Information Storage Technology held as a part of the American Chemical Society meeting in Los Angeles, September 25-30, 1988.

In one of the symposia, Professor Pierre-Gilles de Gennes of College de France was honored as the 1988 recipient of the Amer ican Chemical Society Polymer Chemistry Award, sponsored by Mobil Chemical Corporation.

Proceedings of the Second Symposium held in Santa Clara, California, July 18-22, 1988

This and its companion volumes 7,8, and 9 document the proceedings of the 6th International Symposium on Surfactants in Solution (SIS) held in New Delhi, India, August 18-22, 1986 under the joint auspices of the Indian Society for Surface Science and Technology, and Indian Institute of Technology, Delhi.

This and its companion volumes 7,8, and 10 document the proceedings of the 6th International Symposium on Surfactants in Solution (SIS) held in New Delhi, India, August 18-22, 1986 under the joint auspices of the Indian Society for Surface Science and Technology, and Indian Institute of Technology, Delhi.

See preceding entry. Volume 8 contains 36 chapters, some of which continue v.7's treatment of aggregation of surfactants and the structure, dynamics, and characterization of micelles; others study biological amphiphiles. Annotation copyright Book News, Inc. Portland, Or.

This and its companion volumes 8,9, and 10 document the proceedings of the 6th International Symposium on Surfactants in Solution (SIS) held in New Delhi, India, August 18-22, 1986 under the joint auspices of the Indian Society for Surface Science and Technology, and Indian Institute of Technology, Delhi.