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Lecture Notes on Beam Instrumentation and DiagnosticsBy Peter Forck
Petroleum Geoscience is a comprehensive introduction to the application of geology and geophysics to the search for and production of oil and gas. Uniquely, this book is structured to reflect the sequential and cyclical processes of exploration, appraisal, development and production. Chapters dedicated to each of these aspects are further illustrated by case histories drawn from the authors' experiences. Petroleum Geoscience has a global and 'geo-temporal' backdrop, drawing examples and case histories from around the world and from petroleum systems ranging in age from late-Pre-Cambrian to Pliocene. In order to show how geoscience is integrated at all levels within the industry, the authors stress throughout the links between geology and geophysics on the one hand, and drilling, reservoir engineering, petrophysics, petroleum engineering, facilities design, and health, safety and the environment on the other. Petroleum Geoscience is designed as a practical guide, with the basic theory augmented by case studies from a wide spread of geographical locations. Covers all the key aspects of the origin of petroleum, exploration, and production. It takes account of the modern emphasis on the efficient utilisation of reserves, on new methods in exploration (such as 3-D seismics). Book takes 'value-chain' approach to Petroleum Geoscience. First new text on petroleum geology for geology undergraduates to be published in the last ten years. Packed full of real-life case studies from Petroleum industry.
A comprehensive yet accessible introduction to the conceptual tools used to explore real-world environmental problems Environment and Society: A Critical Introduction, Third Edition demonstrates how theoretical approaches such as environmental ethics, political economy, and social construction work as conceptual tools to identify and clarify contemporary environmental issues. Assuming no background knowledge in the subject, this reader-friendly textbook uses clear language and engaging examples to first describe nine key conceptual tools, and then apply them to a variety of familiar objects—from bottled water and French fries to trees, wolves, and carbon dioxide. Throughout the text, highly accessible chapters provide insight into the relationship between the environment and present-day society. Divided into two parts, the text begins by explaining major theoretical approaches for interpreting the environment-society relationship and discussing different perspectives about environmental problems. Part II examines a series of objects, each viewed through a sample of the theoretical tools from Part I, helping readers think critically about critical environmental topics such as deforestation, climate change, the global water supply, and hazardous e-waste. This fully revised third edition stresses a wider range of competing ways of thinking about environmental issues and features additional cases studies, up-to-date conceptual understandings, and new chapters in Part I on racializd environments and feminist approaches. Environment and Society: A Critical Introduction, Third Edition: Covers theoretical lenses such as commodities, environmental ethics, and risks and hazards, and applies them to touchstone environment-society objects like wolves, tuna, trees, and carbon dioxide Uses a conversational narrative to explain key historical events, topical issues and policies, and scientific concepts Features substantial revisions and updates, including new chapters on feminism and race, and improved maps and illustrations Includes a wealth of in-book and online resources, including exercises and boxed discussions, chapter summaries, review questions, references, suggested readings, an online test bank, and internet links Provides additional instructor support such as suggested teaching models, full-color PowerPoint slides, and supplementary teaching material Retaining the innovative approach of its predecessors, Environment and Society: A Critical Introduction, Third Edition remains the ideal textbook for courses in environmental issues, environmental science, and nature and society theory.
This volume covers the current knowledge base on the role of signaling and environmental pathways that control the normal development of germline stem cells, meiotic progression of oocytes, events of oocyte maturation and fertilization, and the birth of an embryo. Germ cells are uniquely poised to sustain life across generations through the fusion of oocyte and sperm. Because of the central importance of germ cells to life, much work has been dedicated to obtaining a clear understanding of the molecular and signaling events that control their formation and maintenance. Germ cells are set aside from somatic cells in the embryo and go through specialized meiotic cell cycles as the animal matures. These cell cycles are interspersed with long periods of arrest. In human females, meiosis I is initiated in the fetus. At birth, oocytes are arrested in meiosis I; after puberty, every month an oocyte initiates meiosis II – ovulation. Upon sperm availability these cells are fertilized, generate an embryo, and the cycle-of-life continues. During meiotic I progression and arrest, the fitness of oocytes and their progeny are likely influenced by environmental cues and signaling pathways. A lot of recent work has focused on understanding the mechanisms that regulate oocyte fitness and quality in humans and vertebrates. Much of our understanding on the events of meiosis I and germline stem cell populations comes from work in invertebrates, wherein the germline stem cells produce oocytes continuously through adult development. In both inverbrates and vertebrates nutritional and signaling pathways control the regulation of stem cells in such a manner so as to couple production of gametes with the nutritional availability. Additionally, mature oocytes arrest both in meiosis I and meiosis II, and signaling and nutritional pathways have been shown to regulate their formation, and maintenance, such that despite long periods of arrest, the oocyte quality is assured and errors in chromosome segregation and varied cytoplasmic events are minimal.