Abstract: Starting from the earlier notions of stationary action principles, these tutorial notes shows how Schwinger’s Quantum Action Principle descended from Dirac’s formulation, which independently led Feynman to his path-integral formulation of quantum mechanics. Part I brings out in more detail the connection between the two formulations, and applications are discussed. Then, the Keldysh-Schwinger time-cycle method of extracting matrix elements is described. Part II will discuss the variational formulation of quantum electrodynamics and the development of source theory.
Abstract: The importance of mathematics in the undergraduate biology curriculum is ever increasing, as is the importance of biology within the undergraduate applied mathematics curriculum. This ambitious forward thinking book strives to make concrete connections between the two fields at the undergraduate level, bringing in a wide variety of mathematical methods such as signal processing, systems identification, and stochastic differential equations to an undergraduate audience interested in biological dynamics. The presentation stresses a practical hands-on approach: important concepts are introduced using linear first- or second-order differential equations that can be solved using “pencil and paper”; next, these are extended to “real world” applications through the use of computer algorithms written in Scientific Python or similar software. This book developed from a course taught by Professor John Milton at the University of Chicago and developed and continued over many years with Professor Toru Ohira at the Claremont Colleges. The tone of the book is pedagogical, engaging, accessible, with lots of examples and exercises. The authors attempt to tread a line between accessibility of the text and mathematical exposition. Online laboratories are provided as a teaching aid. At the beginning of each chapter a number of questions are posed to the reader, and then answered at the conclusion of the chapter. Milton and Ohira’s book is aimed at an undergraduate audience, makes close ties to the laboratory, and includes a range of biological applications, favoring physiology. This makes it a unique contribution to the literature. This book will be of interest to quantitatively inclined undergraduate biologists, biophysicists and bioengineers and in addition through its focus on techniques actually used by biologists, the authors hope this text will help shape curricula in biomathematics education going forward. Review: "Based on the authors' experience teaching biology students, this book introduces a wide range of mathematical techniques in a lively and engaging style. Examples drawn from the authors' experimental and neurological studies provide a rich source of material for computer laboratories that solidify the concepts. The book will be an invaluable resource for biology students and scientists interested in practical applications of mathematics to analyze mechanisms of complex biological rhythms." (Leon Glass, McGill University, 2013)
Abstract: "Knowledge Acquisition in Practice is the first book to provide a detailed step-by-step guide to the methods and practical aspects of acquiring, modelling, storing and sharing knowledge. The reader is led through 17 steps from the inception of a project to its successful conclusion. Each step is described in terms of the reasons for the step, the required resources, the activities to be undertaken, and the solutions to common problems. In addition, each step has a checklist which lists the key items that should be achieved during the step." "Knowledge Acquisition in Practice will be of value to knowledge engineers, knowledge workers, knowledge officers and ontological engineers. The book will also be of interest to students and researchers of AI, computer science and business studies."--Jacket.
Abstract: This book discusses the costs and benefits of repairing ecosystem goods and services in natural and socioecological systems. The business and practice of restoring natural capital is examed, and it is seeked to establish common ground between economists and ecologists with respect to the restoration of degraded ecosystems and landscapes and the still broader task of restoring natural capital. Challenges and achievements in setting targets, refining approaches to finding and implementing restoration projects, and using restoration of natural capital as an economic opportunity is illustrated in several case studies. Throughout, the case made that the restoration of natural capital requires close collaboration among scientists from across disciplines as well as local people, and when successfully executed represents a practical, realistic, and essential tool for achieving lasting sustainable development.
Abstract: Annotation---This is a graduate level textbook on the theory of electromagnetic radiation and its application to waveguides, transmission lines, accelerator physics and synchrotron radiation. It has grown out of lectures and manuscripts by Julian Schwinger prepared during the war at MIT's Radiation Laboratory, updated with material developed by Schwinger at UCLA in the 1970s and 1980s, and by Milton at the University of Oklahoma since 1994.nbsp;nbsp; The book includes a great number of straightforward and challenging exercises and problems. It is addressed to students in physics, electrical engineering, and applied mathematics seeking a thorough introduction to electromagnetism with emphasis on radiation theory and its applications. A hardcover edition containing additionally the reprints of more than 15 papers by Schwinger on these topicsnbsp;is available separately.
horticulture - horticultural crops - fruit crops - vegetables - exports - export promotion - training - suriname - netherlands - supply chain management - capacity building - development cooperation
Abstract: In het project Surituin is een stakeholder workshop gehouden waarin relevante stakeholders zijn uitgenodigd deel te nemen aan een discussie betreffende kansen en knelpunten in de exportketen van groenten uit Suriname naar Nederland.
Abstract: Lowland raised bogs are an important and declining habitat throughout Western Europe. The majority of lowland raised bogs in the UK have been damaged to varying degrees and by various human activities over a very long period. The classification and categorisation of the extent of this damage, the extent of natural or near natural active peat growth and the ability to restore active peat formation is central to the management of remaining sites and the application of appropriate restoration measures on degraded sites. Existing categorisations are varied and based largely on field inventories and surveys. The adoption of remote sensed techniques allows the potential for consistent assessment of the condition of sites over a wider area. However, such approaches will only be effective if the level of discrimination and classification is appropriate to the determination of the impacts and the indicators of the land cover classes (in terms of degree of degradation). This project seeks to assess the capability of remote sensing to discriminate these classes or to generate classes that approximate closely to those of the Lowland Bog Resource Inventory (LRBI) and EU Habitat Directive classes. Raised bog surfaces pose a significant challenge to current remote sensing techniques. The areas involved are relatively small, and the spectral differences between plant communities are very subtle and change seasonally. However, in the UK at least, the major part of the raised bog habitat is characterised by a short, open sward that lends itself to detailed analysis using remote-sensing techniques. The habitat is thus more intrinsically amenable to such investigation than more structurally complex habitats such as woodland, scrubland or even tall sedge-fen. Raised bog is also a habitat generally characterised by low surface gradients. Consequently the typical problems associated with remote sensing in upland areas, such as extreme slope angles, markedly differing aspects, and hill shadows, do not generally arise. Indeed there is every reason to believe that as remote sensing becomes more capable, so raised bog sites will yield to the unique advantages that it offers. In particular, remote sensing has the potential to determine the surface extent and configuration of bogs, their species composition, and physical variables such as surface moisture content and the degree of humification of exposed peat. This report describes the results from a contract which set out to achieve three things: to review the current approaches to raised lowland bog classification and to identify how remote sensing might provide an information source for such classifications; to develop a cost-effective method of using the best currently available civilian satellite sensor data to produce habitat maps for raised bogs, to a level of accuracy appropriate for management; to investigate the opportunities offered by advanced airborne sensors currently available for hire in the UK (e.g. ATM, lidar);
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