Geochemistry of Sedimentary Ore Deposits

Geochemistry of Sedimentary Ore Deposits
Author: J.B. Maynard
Publisher: Springer Science & Business Media
Total Pages: 297
Release: 2012-12-06
Genre: Science
ISBN: 1461394937
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This book is an outgrowth of my interest in the chemistry of sedimentary rocks. In teaching geochemistry, I realized that the best examples for many chemical processes are drawn from the study of ore deposits. Consequently, we initiated a course at The University of Cincinnati entitled "Sedimentary Ore Deposits," which serves as the final quarter course for both our sedimentary petrology and our ore deposits sequence, and this book is based on that teaching experience. Because of my orientation, the treatment given is perhaps more sedimentological than is usually found in books on ore deposits, but I hope that this proves to be an advantage. It will also be obvious that I have drawn heavily on the ideas and techniques of Robert Garrels. A number of people have helped with the creation of this book. I am especially grateful to my students and colleagues at Cincinnati and The Memorial University of Newfoundland for suffering through preliminary versions in my courses. I particularly thank Bill Jenks, Malcolm Annis, and Dave Strong. For help with field work I thank A. Hallam, R. Hiscott, J. Hudson, R. Kepferle, P. O'Kita, A. Robertson, C. Stone, and R. Stevens. I am also deeply indebted to Bob Stevens for many hours of insightful discussion.

Introduction to Natural Language Processing

Introduction to Natural Language Processing
Author: Jacob Eisenstein
Publisher: MIT Press
Total Pages: 535
Release: 2019-10-01
Genre: Computers
ISBN: 0262042843
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A survey of computational methods for understanding, generating, and manipulating human language, which offers a synthesis of classical representations and algorithms with contemporary machine learning techniques. This textbook provides a technical perspective on natural language processing—methods for building computer software that understands, generates, and manipulates human language. It emphasizes contemporary data-driven approaches, focusing on techniques from supervised and unsupervised machine learning. The first section establishes a foundation in machine learning by building a set of tools that will be used throughout the book and applying them to word-based textual analysis. The second section introduces structured representations of language, including sequences, trees, and graphs. The third section explores different approaches to the representation and analysis of linguistic meaning, ranging from formal logic to neural word embeddings. The final section offers chapter-length treatments of three transformative applications of natural language processing: information extraction, machine translation, and text generation. End-of-chapter exercises include both paper-and-pencil analysis and software implementation. The text synthesizes and distills a broad and diverse research literature, linking contemporary machine learning techniques with the field's linguistic and computational foundations. It is suitable for use in advanced undergraduate and graduate-level courses and as a reference for software engineers and data scientists. Readers should have a background in computer programming and college-level mathematics. After mastering the material presented, students will have the technical skill to build and analyze novel natural language processing systems and to understand the latest research in the field.

The History of CARE

The History of CARE
Author: Wallace J. Campbell
Publisher: Praeger
Total Pages: 288
Release: 1990-09-10
Genre: History
ISBN:
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This book offers a highly personal, detailed, and richly anecdotal history of the organization known worldwide as CARE. The author, who is a founding member of CARE and was active in its development, also served as the organization's President and Treasurer. Now President Emeritus, he is in a unique position to provide an intimate look at the events that transformed CARE from a food package service to Europe following World War II into an international series of organizations interested in relief, school lunch programs and nutritional education, refugee assistance, and development assistance around the world. Throughout, the author emphasizes the pivotal role that private voluntary organizations like CARE can play in international relief and their impact on the process of economic growth and development so critical to world peace and stability. Campbell tells us how, when, and why CARE was formed in the United States in the aftermath of the devastation left by World War II; what the problems were; how people responded to the effort; how the cooperative organization and its problems grew and changed from a limited system of food package deliveries to broader efforts in the fields of food aid, disaster and emergency relief, and promoting development; and how people in some countries formerly aided by CARE became part of today's 11 nation network of national CARE organizations dedicated to helping meet the needs of the developing world. Because this is a personal account, Campbell focuses on the men and women who founded and continue to sustain CARE--people who believe it is not enough simply to support the concept of help for those in need, but who reinforce that concept with a personal commitment to action. Writing partly from his own records, partly from materials compiled for CARE archives by employees and officials, and partly from personal recollections, Campbell has provided a unique memoir of a unique organization--one that will be welcomed enthusiastically by CARE employees and contributors, development policy planners, and anyone who has been involved in the activities of the organization during its 45-year history.

American Philanthropy Abroad

American Philanthropy Abroad
Author: Merle Curti
Publisher: Transaction Publishers
Total Pages: 702
Release: 1988-01-01
Genre: Social Science
ISBN: 9781412817011
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This book tells for the first time, in rich detail, and without apologetics, what Americans have done, in the voluntary sector and often without official sanction, for human welfare in all parts of the world. Beneath the currently fashionable rhetoric of anti-colonialism is the story of people who have aided victims of natural disasters such as famines and earthquakes, and what they contributed to such agencies of cultural and social life as libraries, schools, and colleges. The work of an assortment of individuals, from missionaries to foundation executives, has advanced public health, international education, and technical assistance to the Third World. These people have also assisted in relief and relocation of refugees, displaced persons, and those who suffered religious and racial persecution. These activities were especially noteworthy following the two world wars of the twentieth century. The United States established great foundations--Carnegie, Rosenwald, Phelps-Stokes, Rockefeller, Ford, among others--which provided another face of capitalist accumulation to those in backward economic regions and those suffering political persecution. These were meshed with religious relief agencies of all denominations that also contributed to make possible what Arnold Toynbee called "a century in which civilized man made the benefits of progress available to all mankind." This is a massive work requiring more than five years of research, drawing upon a wide array of hitherto unavailable materials and source documents.