Electronic Circuits covers all important aspects and applications of modern analog and digital circuit design. The basics, such as analog and digital circuits, on operational amplifiers, combinatorial and sequential logic and memories, are treated in Part I, while Part II deals with applications. Each chapter offers solutions that enable the reader to understand ready-made circuits or to proceed quickly from an idea to a working circuit, and always illustrated by an example. Analog applications cover such topics as analog computing circuits. The digital sections deal with AD and DA conversion, digital computing circuits, microprocessors and digital filters. This editions contains the basic electronics for mobile communications. The accompanying CD-ROM contains PSPICE software, an analog-circuit-simulation package, plus simulation examples and model libraries related to the book topics.
New research in mathematics education deals with the complexity of the mathematics’ classroom. The classroom teaching situation constitutes a pertinent unit of analysis for research into the ternary didactic relationship which binds teachers, students and mathematical knowledge. The classroom is considered as a complex didactic system, which offers the researcher an opportunity to gauge the boundaries of the freedom that is left with regard to choices about the knowledge to be taught and the ways of organizing the students’ learning, while giveing rise to the study of interrelations between three main elements of the teaching process the: mathematical content to be taught and learned, management of the various time dimensions, and activity of the teacher who prepares and manages the class, to the benefit of the students' knowledge and the teachers' own experience. This volume, reprinted from Educational Studies in Mathematics, Volume 59, focuses on classroom situations as a unit of analysis, the work of the teacher, and is strongly anchored in original theoretical frameworks. The contributions are formulated from the perspective of one or more theoretical frameworks but they are tackled by means of empirical investigations.
Electronic Circuits covers all important aspects and applications of modern analog and digital circuit design. The basics, such as analog and digital circuits, on operational amplifiers, combinatorial and sequential logic and memories, are treated in Part I, while Part II deals with applications. Each chapter offers solutions that enable the reader to understand ready-made circuits or to proceed quickly from an idea to a working circuit, and always illustrated by an example. Analog applications cover such topics as analog computing circuits. The digital sections deal with AD and DA conversion, digital computing circuits, microprocessors and digital filters. This editions contains the basic electronics for mobile communications. The accompanying CD-ROM contains PSPICE software, an analog-circuit-simulation package, plus simulation examples and model libraries related to the book topics.
Contributes to the history of Middle Eastern narrative lore and its impact on Western tradition. The Thousand and One Days, a companion collection to The Thousand and One Nights, was published in 1710–1712 by French Orientalist scholar François Pétis de la Croix who advertised it as the faithful, albeit selective translation of a Persian work. Subsequent research has found that The Thousand and One Days is actually the adapted translation of a fifteenth-century anonymous Ottoman Turkish compilation titled Relief after Hardship. This compilation, in turn, is the enlarged translation of an equally anonymous Persian collection of tales that likely dates back to as early as the thirteenth century. The tales in both the Ottoman Turkish and the Persian collections are mostly tales of the marvelous and the strange, a genre that dominated much of the narrative literatures of the pre-modern Muslim world. Ulrich Marzolph's Relief after Hardship: The Ottoman Turkish Model forThe Thousand and One Days is a detailed assessment of the Ottoman Turkish compilation and its Persian precursor. Based upon Andreas Tietze's unpublished German translation of the Ottoman TurkishFerec ba'd es-sidde, it traces the origins of the collection's various tales in the pre-modern Persian and Arabic literatures and its impact on Middle Eastern and world tradition and folklore. Ottoman Turkish literature proves to be a suitable candidate for the transmission of tales from East to West long before the European translation of The Thousand and One Nights. Additionally, the concept of "relief after hardship" has the same basic structure as the European fairy tale, wherein the protagonist undergoes a series of trials and tribulations before he attains a betterment of his status. Marzolph contends that the early reception of these tales from Muslim narrative tradition might well have had an inspiring impact on the nascent genre of the European fairy tale that has come to know international success today. This fascinating compilation of tales is being presented for the first time to an English language audience along with a comprehensive survey of its history, as well as detailed summaries and extensive comparative annotations to the tales that will be of interest to literature and folklore scholars.
A comprehensive exploration of the Middle Eastern roots of Western narrative tradition. Against the methodological backdrop of historical and comparative folk narrative research, 101 Middle Eastern Tales and Their Impact on Western Oral Tradition surveys the history, dissemination, and characteristics of over one hundred narratives transmitted to Western tradition from or by the Middle Eastern Muslim literatures (i.e., authored written works in Arabic, Persian, and Ottoman Turkish). For a tale to be included, Ulrich Marzolph considered two criteria: that the tale originates from or at least was transmitted by a Middle Eastern source, and that it was recorded from a Western narrator's oral performance in the course of the nineteenth or twentieth century. The rationale behind these restrictive definitions is predicated on Marzolph's main concern with the long-lasting effect that some of the "Oriental" narratives exercised in Western popular tradition—those tales that have withstood the test of time. Marzolph focuses on the originally "Oriental" tales that became part and parcel of modern Western oral tradition. Since antiquity, the "Orient" constitutes the quintessential Other vis-à-vis the European cultures. While delineation against this Other served to define and reassure the Self, the "Orient" also constituted a constant source of fascination, attraction, and inspiration. Through oral retellings, numerous tales from Muslim tradition became an integral part of European oral and written tradition in the form of learned treatises, medieval sermons, late medieval fabliaux, early modern chapbooks, contemporary magazines, and more. In present times, when national narcissisms often acquire the status of strongholds delineating the Us against the Other, it is imperative to distinguish, document, visualize, and discuss the extent to which the West is not only indebted to the Muslim world but also shares common features with Muslim narrative tradition. 101 Middle Eastern Tales and Their Impact on Western Oral Tradition is an important contribution to this debate and a vital work for scholars, students, and readers of folklore and fairy tales.
Religion posits one characteristic as an absolute: faith. Compared to faith, all other social distinctions and sources of conflict are insignificant. The New Testament says: 'We are all equal in the sight of God'. To be sure, this equality applies only to those who acknowledge God's existence. What this means is that alongside the abolition of class and nation within the community of believers, religion introduces a new fundamental distinction into the world the distinction between the right kind of believers and the wrong kind. Thus overtly or tacitly, religion brings with it the demonization of believers in other faiths. The central question that will decide the continued existence of humanity is this: How can we conceive of a type of inter-religious tolerance in which loving one's neighbor does not imply war to the death, a type of tolerance whose goal is not truth but peace? Is what we are experiencing at present a regression of monotheistic religion to a polytheism of the religious spirit under the heading of 'a God of one's own'? In Western societies, where the autonomy of the individual has been internalized, individual human beings tend to feel increasingly at liberty to tell themselves little faith stories that fit their own lives to appoint 'Gods of their own'. However, this God of their own is no longer the one and only God who presides over salvation by seizing control of history and empowering his followers to be intolerant and use naked force.
The idea behind this book is to provide the mathematical foundations for assessing modern developments in the Information Age. It deepens and complements the basic concepts, but it also considers instructive and more advanced topics. The treatise starts with a general chapter on algebraic structures; this part provides all the necessary knowledge for the rest of the book. The next chapter gives a concise overview of cryptography. Chapter 3 on number theoretic algorithms is important for developping cryptosystems, Chapter 4 presents the deterministic primality test of Agrawal, Kayal, and Saxena. The account to elliptic curves again focuses on cryptographic applications and algorithms. With combinatorics on words and automata theory, the reader is introduced to two areas of theoretical computer science where semigroups play a fundamental role.The last chapter is devoted to combinatorial group theory and its connections to automata. Contents: Algebraic structures Cryptography Number theoretic algorithms Polynomial time primality test Elliptic curves Combinatorics on words Automata Discrete infinite groups
This book provides first-hand information about the most recent developments in this very hot area of telecommunications media and consumer electronics. The DVB group developed the standards which are being used in Europe, Australia, Southeast Asia, and many other parts of the world. Some 150 major TV broadcasting companies as well as suppliers for technical equipment are members of the project. This standard is expected to be accepted for worldwide digital HDTV broadcasting.
The first part of this research monograph discusses general properties of G-ENRBs - Euclidean Neighbourhood Retracts over B with action of a compact Lie group G - and their relations with fibrations, continuous submersions, and fibre bundles. It thus addresses equivariant point set topology as well as equivariant homotopy theory. Notable tools are vertical Jaworowski criterion and an equivariant transversality theorem. The second part presents equivariant cohomology theory showing that equivariant fixed point theory is isomorphic to equivariant stable cohomotopy theory. A crucial result is the sum decomposition of the equivariant fixed point index which provides an insight into the structure of the theory's coefficient group. Among the consequences of the sum formula are some Borsuk-Ulam theorems as well as some folklore results on compact Lie-groups. The final section investigates the fixed point index in equivariant K-theory. The book is intended to be a thorough and comprehensive presentation of its subject. The reader should be familiar with the basics of the theory of compact transformation groups. Good knowledge of algebraic topology - both homotopy and homology theory - is assumed. For the advanced reader, the book may serve as a base for further research. The student will be introduced into equivariant fixed point theory; he may find it helpful for further orientation.
This second edition provides first-hand information about the most recent developments in the exciting and fast moving field of telecommunications media and consumer electronics. The DVB group developed the standards which are being used in Europe, Australia, Southeast Asia, and many other parts of the world. Some 150 major TV broadcasting companies as well as suppliers for technical equipment are members of the project. This standard is expected to be accepted for worldwide digital HDTV broadcasting. This book is readable for non-experts with a background in analog transmission, and demonstrates the fascinating possibilities of digital technology. For the second edition, the complete text has been up-dated thoroughly. The latest DVB standards are included in three new sections on Interactive Television, Data Broadcasting, and The Multimedia Home Platform.
The 20th Century brought the rise of General Topology. It arose from the effort to establish a solid base for Analysis and it is intimately related to the success of set theory. Many Valued Topology and Its Applications seeks to extend the field by taking the monadic axioms of general topology seriously and continuing the theory of topological spaces as topological space objects within an almost completely ordered monad in a given base category C. The richness of this theory is shown by the fundamental fact that the category of topological space objects in a complete and cocomplete (epi, extremal mono)-category C is topological over C in the sense of J. Adamek, H. Herrlich, and G.E. Strecker. Moreover, a careful, categorical study of the most important topological notions and concepts is given - e.g., density, closedness of extremal subobjects, Hausdorff's separation axiom, regularity, and compactness. An interpretation of these structures, not only by the ordinary filter monad, but also by many valued filter monads, underlines the richness of the explained theory and gives rise to new concrete concepts of topological spaces - so-called many valued topological spaces. Hence, many valued topological spaces play a significant role in various fields of mathematics - e.g., in the theory of locales, convergence spaces, stochastic processes, and smooth Borel probability measures. In its first part, the book develops the necessary categorical basis for general topology. In the second part, the previously given categorical concepts are applied to monadic settings determined by many valued filter monads. The third part comprises various applications of many valued topologies to probability theory and statistics as well as to non-classical model theory. These applications illustrate the significance of many valued topology for further research work in these important fields.
Mathematics of Fuzzy Sets: Logic, Topology and Measure Theory is a major attempt to provide much-needed coherence for the mathematics of fuzzy sets. Much of this book is new material required to standardize this mathematics, making this volume a reference tool with broad appeal as well as a platform for future research. Fourteen chapters are organized into three parts: mathematical logic and foundations (Chapters 1-2), general topology (Chapters 3-10), and measure and probability theory (Chapters 11-14). Chapter 1 deals with non-classical logics and their syntactic and semantic foundations. Chapter 2 details the lattice-theoretic foundations of image and preimage powerset operators. Chapters 3 and 4 lay down the axiomatic and categorical foundations of general topology using lattice-valued mappings as a fundamental tool. Chapter 3 focuses on the fixed-basis case, including a convergence theory demonstrating the utility of the underlying axioms. Chapter 4 focuses on the more general variable-basis case, providing a categorical unification of locales, fixed-basis topological spaces, and variable-basis compactifications. Chapter 5 relates lattice-valued topologies to probabilistic topological spaces and fuzzy neighborhood spaces. Chapter 6 investigates the important role of separation axioms in lattice-valued topology from the perspective of space embedding and mapping extension problems, while Chapter 7 examines separation axioms from the perspective of Stone-Cech-compactification and Stone-representation theorems. Chapters 8 and 9 introduce the most important concepts and properties of uniformities, including the covering and entourage approaches and the basic theory of precompact or complete [0,1]-valued uniform spaces. Chapter 10 sets out the algebraic, topological, and uniform structures of the fundamentally important fuzzy real line and fuzzy unit interval. Chapter 11 lays the foundations of generalized measure theory and representation by Markov kernels. Chapter 12 develops the important theory of conditioning operators with applications to measure-free conditioning. Chapter 13 presents elements of pseudo-analysis with applications to the Hamilton–Jacobi equation and optimization problems. Chapter 14 surveys briefly the fundamentals of fuzzy random variables which are [0,1]-valued interpretations of random sets.
This richly illustrated text covers the ecophysiology of plants of all major tropical ecosystems, from tropical rain forests, epiphytic habitats, mangroves and savannas to salinas, inselbergs and paramos and their ecophysiological adaptation to these different tropical environments. The physiognomy of biotopes and characteristic life forms of plants are depicted with photographs.
This unusual collection of 49 essays gives an overview of the trends and accomplishments of synthetic organic chemistry in recent years. Unique in its approach, it deals with almost every aspect of modern synthesis. The first part of the book describes methods and reagents, with particular emphasis on rapidly developing organometallic and biooriented procedures. In the second part, these tools are applied to the syntheses of interesting target compounds and natural compounds with remarkable physiological properties. Mechanistic discussions and retrosynthetic analyses are included. More than 1000 up-to-date references help the reader to pursue the topics highlighted here. This book gives both the active researcher and the advanced student insight into the competitive atmosphere, creativity, and resourcefulness so characteristic of organic synthesis today.
Minimal Surfaces is the first volume of a three volume treatise on minimal surfaces (Grundlehren Nr. 339-341). Each volume can be read and studied independently of the others. The central theme is boundary value problems for minimal surfaces. The treatise is a substantially revised and extended version of the monograph Minimal Surfaces I, II (Grundlehren Nr. 295 & 296). The first volume begins with an exposition of basic ideas of the theory of surfaces in three-dimensional Euclidean space, followed by an introduction of minimal surfaces as stationary points of area, or equivalently, as surfaces of zero mean curvature. The final definition of a minimal surface is that of a nonconstant harmonic mapping X: \Omega\to\R^3 which is conformally parametrized on \Omega\subset\R^2 and may have branch points. Thereafter the classical theory of minimal surfaces is surveyed, comprising many examples, a treatment of Björling ́s initial value problem, reflection principles, a formula of the second variation of area, the theorems of Bernstein, Heinz, Osserman, and Fujimoto. The second part of this volume begins with a survey of Plateau ́s problem and of some of its modifications. One of the main features is a new, completely elementary proof of the fact that area A and Dirichlet integral D have the same infimum in the class C(G) of admissible surfaces spanning a prescribed contour G. This leads to a new, simplified solution of the simultaneous problem of minimizing A and D in C(G), as well as to new proofs of the mapping theorems of Riemann and Korn-Lichtenstein, and to a new solution of the simultaneous Douglas problem for A and D where G consists of several closed components. Then basic facts of stable minimal surfaces are derived; this is done in the context of stable H-surfaces (i.e. of stable surfaces of prescribed mean curvature H), especially of cmc-surfaces (H = const), and leads to curvature estimates for stable, immersed cmc-surfaces and to Nitsche ́s uniqueness theorem and Tomi ́s finiteness result. In addition, a theory of unstable solutions of Plateau ́s problems is developed which is based on Courant ́s mountain pass lemma. Furthermore, Dirichlet ́s problem for nonparametric H-surfaces is solved, using the solution of Plateau ́s problem for H-surfaces and the pertinent estimates.
Love and family life in the global age: grandparents in Salonika and their grandson in London speak together every evening via Skype. A U.S. citizen and her Swiss husband fret over large telephone bills and high travel costs. A European couple can finally have a baby with the help of an Indian surrogate mother. In their new book, Ulrich Beck and Elisabeth Beck-Gernsheim investigate all types of long-distance relationships, marriages and families that stretch across countries, continents and cultures. These long-distance relationships comprise so many different forms of what they call ‘world families’, by which they mean love and intimate relationships between individuals living in, or coming from, different countries or continents. In all their various forms these world families share one feature in common: they are the focal point in which different aspects of the globalized world become embodied in the personal lives of individuals. Whether they like it or not, lovers and relatives in these families find themselves confronting the world in the inner space of their own lives. The conflicts between the developed and developing worlds come to the surface in world families- they acquire faces and names, creating confusion, surprise, anger, joy, pleasure and pain at the heart of everyday life. This path-breaking book will appeal to a wide readership interested in the changing character of love in our times.
How do I plan my course? How can I inspire students? How do I present myself? How do I want to teach? How do I test correctly? What teaching methods are there? Due to the lack of comprehensive (university) didactic training, teachers too often have to answer these and many other questions for themselves. This book is intended to counteract this and presents practical tips on good university teaching for all disciplines based on the current state of research.
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