Abstract: Wittgenstein's philosophy is a puzzling subject mainly because Wittgenstein himself does not appear to have given a full, explicit account of what he means by his `phenomenology', `phenomenological language' or `phenomenological problems'. This book examines the idea of phenomenology throughout the different stages of Wittgenstein's philosophical development. The author argues that Wittgenstein's entire philosophical life was mainly concerned with what is immediately given in one's experience. Early interpretations of the phenomenological elements in Wittgenstein's philosophy usually emphasized the unique nature of his later work. However, the author here convincingly makes the case that Wittgenstein's concern with immediate experience and the way we describe it guided his philosophical journey through the phenomenological problems that pervade his work. The author offers many intriguing ideas and philosophical insights for Wittgenstein scholars and students, and philosophers interested in phenomenology who wish to study one of the most distinguished but least understood philosophers of the twentieth century. Audience: Philosophers, philosophers interested in phenomenology, Wittgenstein scholars

Abstract: The Law of Causality and its Limits (1931) a principal work from the classical period of the Vienna Circle, was written by Philipp Frank, a physicist and philosopher, to clarify the strengths and weaknesses of the notion of causal explanation. The book contains analyses of central issues in the philosophy of science: meaning of general statements, determinism, vitalism, lawfulness in biology and physical science, irreversibility, cause and chance, among others

Abstract: This collection celebrates the centenary of the Lvov-Warsaw school, established by Kazimierz Twardowski in Lvov in 1895. This school belongs to analytic philosophy and successfully worked in all branches of philosophy. The Warsaw school of logic became perhaps the most important part of Twardowski's heritage. Lesniewski, Lukasiewicz and Tarski, leading Polish logicians, achieved results which essentially influenced the development of contemporary logic. A close connection of logic and philosophy was a typical feature of the Lvov-Warsaw school. The papers included in the collection deal with all directions of research undertaken by Polish analytic philosophers. Special attention is paid to logic and comparisons with other philosophical movements, particularly with Brentanism, which was one of the sources of the Lvov-Warsaw school

Abstract: These essays by his friends, students, colleagues, and admirers honor Marx Wartofsky on his 65th birthday by their humane and rigorous investigations of themes from his own broad range of interests. Art and science, ethics and history, from the great Enlightenment through the 19th century to our time of failed hopes and ironic successes, and especially human self-understanding through praxis, Wartofsky's joys, sorrows, curiosity and intelligence find their reflections in these insightful and original contributions. The authors include Joseph Agassi, Andrew Buchwalter, Peter Caws, Robert S. Cohen, William Earle, Bernard Elevitch, Paul Feyerabend, Roger S. Gottlieb, Carol C. Gould, Hilde Hein, Jaakko Hintikka, Gregg Horowitz, Michael Kelly, Peter Kivy, Erazim Kohak, Douglas Lackey, Berel Lang, Isaac Levi, Joseph Margolis, Gyorgy Markus, Alasdair MacIntyre, William McBride, Thomas McCarthy, Joëlle Proust, Roshdi Rashed, Cheyney Ryan, Abner Shimony, Kristin Shrader-Frechette, Lorenzo Simpson, Gary Smith, John Stachel, and Willis Truitt

Abstract: Featuring the Gestalt Model and the Perspectivist conception of science, this book is unique in its non-relativistic development of the idea that successive scientific theories are logically incommensurable. This edition includes four new appendices in which the central ideas of the book are applied to subatomic physics, the distinction between laws and theories, the relation between absolute and relative conceptions of space, and the environmental issue of sustainable development

Abstract: 1. Introduction -- 2. Chemical Lists and List Descriptions -- 3. Cross-Reference Indexes of Chemical Names and Synonyms -- B. Regulatory Summaries -- Appendix: Key to RCRA “F”- and “K”- Series Wastes.

Abstract: The Regulated Chemicals Directory"lM is meant to be a convenient source of information for everyone who needs to keep up-to-date regarding the regulations and recommendations that pertain to chemical substances. The RCD™ is designed to be the first reference book to consult when beginning compliance efforts. Every regulatory or advisory list used in the RCD™ is keyed to its source, to help readers who need more detailed information on regulations, recommendations, or guidelines readily locate source documents. Some organizations now center their compliance efforts on computerized information stored in cross-referenced databases. A unique feature of the RCDTM is the availability of an electronic version suitable for use on IBM-compatible personal computers, download onto mainframes and CD-ROM players. Both the print and electronic versions are updated with the same timeliness. For more information on the electronic versions of the Regulated Chemicals DirectoryTM, contact Chapman & Hall directly (One Penn Plaza, New York, NY 10119, fax-212-564-1505). Many companies working on product development need information on what may be regulated in the future. The RCD™ provides selected information on pending regulations and in-progress testing lists, which can provide a starting place for tracking future regulatory considerations. Information for the RCD™ is continually gathered and updated. Suggestions from readers for information that should be added to the RCD™ or for other ways to improve the book are welcomed by Chapman & Hall. - Patricia L. Dsida, Pres. ChemADVISOR® , Inc. ix Part A. Chemical Lists and Indexes Section 1.

Abstract: There is a consensus among Christian theologians that the symbol of the `kingdom of God', inherited from the Judaic tradition, is the key to understanding Christianity. But theologians have for millenia differed among themselves as to the interpretation of this symbol. Political ramifications of, or reactions to, this Judaeo-Christian idea have included the Holy Roman Empire, the Crusades, the `Third Rome', American Manifest Destiny, Zionism, the Third Reich, and Liberation Theology. This book focuses on the question of whether the kingdom of God is necessarily related to certain political implications, and its possible implications for democracy and democratic theory. It examines the development of the symbol in the Old and New Testaments, the diversity of related theological interpretations and political concomitants, and the significance of the `kingdom of God' in the development of present and future political formations and political theory

Abstract: A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W -- X -- Y -- Z.

Abstract: This edition of over 60 000 entries, including significantly more than 20% new or revised material, not only updates its predecessor but also continues the policy of extending coverage to areas dealt with only sparsely in previous editions. Special attention has been paid to the Far East, Australasia and Latin America in general, and to the People's Republic of China in particular. The cross-referencing between a defunct organization and its successor (indicated by ex and now) introduced into the last edition, has been extended. Otherwise the policies adopted in previous editions have been retained. All kinds of organizations are included - international, national, governmental, individual, large or small - but strictly local organizations have been omitted. The subject scope includes activities of all kinds, in the fields of commerce and industry, education, law, politics, public administration, religion, recreation, medicine, science and technology. The country of origin of a national organization is given in brackets, unless it is the home country of the title language or can be deduced readily from the title itself. Acronyms of parent bodies of subsidiary organizations are also added in brackets. Equivalences are used to link acronyms in different languages for the same organization. A select bibliography guides the reader to specialist works providing more detailed information.

Abstract: 1 Introduction to the chemistry, synthesis, manufacture and characterization of epoxy resins -- 2 Curing agents for epoxy resins -- 3 The kinetics of cure and network formation -- 4 Additives and modifiers for epoxy resins -- 5 Fracture behaviour of epoxy resins -- 6 Electrical properties of epoxy resins -- 7 Epoxy resin adhesives -- 8 Composite materials -- 9 Coatings and other applications of epoxy resins.

Abstract: Epoxy resins have been commercially available for about 45 years and now have many major industrial applications, especially where technical advantages warrant their somewhat higher costs. The chemistry of these resins is fascinating and has attracted study by many very able scientists. The technological applications of the epoxy resins are very demanding and there are many new developments each year. The aims of the present book are to present in a compact form both theoretical and practical information that will assist in the study, research and innovations in the field of epoxy resin science and technology. The literature on epoxy resins is so vast that it is not possible to be encyclopaedic and that is not the function of the present text. It is the editor's hope that the selection of topics discussed will provide an up-to-date survey. There is some overlap in the chapters but this is minimal and so each chapter is essentially self contained. As with all chemicals there are toxicological and other hazards. These are not dealt with in this text since a little knowledge can be dangerous, but material supplied can provide information regarding any safety precautions that may be necessary. However, often these precautions are not onerous and epoxy resins, or more specifically the hardeners, can be handled readily. It is hoped that this text will provide an up-to-date outline of the science and technology of epoxy resins and stimulate further research into unsolved problems and assist further technological developments.

Abstract: 1 Introduction -- 2 The Wiggler Field and Electron Dynamics -- 3 Incoherent Undulator Radiation -- 4 Coherent Emission: Linear Theory -- 5 Coherent Emission: Nonlinear Theory -- 6 Sideband Instabilities -- 7 Coherent harmonic Radiation -- 8 Optical Guiding -- 9 OScillator Configurations -- 10 Electromagnetic-wave Wigglers -- 11 Chaos in Free-electron Lasers -- Author Index.

Abstract: At the time that we decided to begin work on this book, several other volumes on the free-electron laser had either been published or were in press. The earliest work of which we were aware was published in 1985 by Dr T. C. Marshall of Columbia University [1]. This book dealt with the full range of research on free-electron lasers, including an overview of the extant experiments. However, the field has matured a great deal since that time and, in our judgement, the time was ripe for a more extensive work which includes the most recent advances in the field. The fundamental work in this field has largely been approached from two distinct and, unfortunately, separate viewpoints. On the one hand, free-electron lasers at sub-millimetre and longer wavelengths driven by low-energy and high-current electron beams have been pursued by the plasma physics and microwave tube communities. This work has confined itself largely to the high-gain regimes in which collective effects may play an important role. On the other hand, short-wavelength free-electron lasers in the infrared and optical regimes have been pursued by the accelerator and laser physics community. Due to the high-energy and low-current electron beams appropriate to this spectral range, these experiments have operated largely in the low-gain single-particle regimes. The most recent books published on the free-electron laser by Dr C. A.

Abstract: 1 Introduction -- 2 A simple factorial grazing experiment measured on 27 occasions -- 3 A 3 × 3 factorial with quantitative levels -- 4 Definable within-individual comparisons -- 5 Covariance -- 6 Pre-treatment observations in the design of experiments -- 7 Weighted regression, goodness-of-fit and related topics -- 8 Environmental variables -- 9 Correlation between series of random variables -- 10 Response (reaction) times -- Bibliographical note.

Abstract: There are many excellent books on general statistical methods in agricul­ tural and biological research. These books cover a broad range of methods without going into detail on specialized topics. A number of topics including regression analysis, design of experiments, biological assay and categorical analysis have received in-depth treatment in specialized texts. Little appears in standard textbooks on experiments in which observations form sequences. The live weights of animals during a long-term experiment provide a familiar example of data forming a sequence, but many others occur: for example, moisture content of segments of soil cores, successive counts of insects in an orchard and hormone levels in blood over a period. Correla­ tions are likely to be found among the observations in all these examples. The book by Goldstein (1979) provided the first systematic coverage of the principles involved in longitudinal studies, but is mainly concerned with observational studies on humans. The main aims of this book are to provide research workers with methods of analysing data from comparative experiments with sequential obser­ vations and to demonstrate special features of the design of such experi­ ments. These aims are achieved by working through sets of data.

Abstract: One Systems -- 1 Overview of manufacturing systems analysis in the technological age -- 2 Systems concepts -- Two Manufacturing -- 3 A conceptual model of a manufacturing system -- Three Systems Engineering -- 4 The general systems approach to problem-solving -- 5 Computer simulation in manufacturing systems analysis -- Four Manufacturing Systems -- 6 A design and evaluation methodology of manufacturing systems -- Appendices -- A Survey of traditional and current methods used for production planning and control of manufacturing systems -- A.1 Overview of production planning and control -- A.2 Traditional methodologies -- A.3 Integrated production planning and control -- A.4 Conclusion -- B Sample company document defining the system requirements for the control of supplies and services -- B.1 Introduction -- B.2 Objective -- B.3 Requirement of quality system -- C The PCModel instruction set -- C.1 Object movement -- C.2 Routeing control -- C.3 Arithmetic operation -- C.4 Data input/output -- References.

Abstract: A technological book is written and published for one of two reasons: it either renders some other book in the same field obsolete or breaks new ground in the sense that a gap is filled. The present book aims to do the latter. On my return from industry to an academic career, I started writing this book because I had seen that a gap existed. Although a great deal of information appeared in the published literature about various technical aspects of advanced manufacturing technology (AMT), surprisingly little had been written about the systems con­ text within which the sophisticated hardware and software of AMT are utilized to increase efficiency. Therefore, I have attempted in this book to show how structured approaches in the design and evaluation of modern manufacturing plant may be adopted, with the objective of improving the performance of the factory as a whole. I hope this book will be a contribution to the newly recognized, multidisciplinary engineering function known as manufacturing sys­ tems engineering. The text has been designed specifically to demonstrate the systems aspects of modern manufacturing operations, including: systems con­ cepts of manufacturing operation; manufacturing systems modelling and evalua­ tion; and the structured design of manufacturing systems~ One of the major difficulties associated with writing a text of this nature stems from the diversity of the topics involved. I have attempted to solve this problem by adopting an overall framework into which the relevant topics are fitted.

Abstract: Reductionism as Negation of the Scientific Spirit -- The Power and Limits of Reduction -- Theory of Antireductionist Arguments:The Bohr Case Study -- A Short History of Emergence and Reductionism -- The Technical Problem of “Full Abstractness” as a Model for an Issue in Reductionism -- A Neutral Reduction: Analytical Method and Positivism -- Reductionism and Reduction in Logic and in Mathematics -- Reductionism in Biology -- Reductionism: Palaver without Precedent -- Must a Science of Artificial Intelligence be Necessarily Reductionist? -- Can Psychological Software be Reduced to Physiological Hardware? -- On the Problem of Reducing Value-Components in Epistemology -- Index Of Names.

Abstract: The topic to which this book is devoted is reductionism, and not reduction. The difference in the adoption of these two denominations is not, contrary to what might appear at first sight, just a matter of preference between a more abstract (reductionism) or a more concrete (reduction) terminology for indicating the same sUbject matter. In fact, the difference is that between a philosophical doctrine (or, perhaps, simply a philosophical tenet or claim) and a scientific procedure. Of course, this does not mean that these two fields are separated; they are only distinct, and this already means that they are also likely to be interrelated. However it is useful to consider them separately, if at least to better understand how and why they are interconnected. Just to give a first example of difference, we can remark that a philosophical doctrine is something which makes a claim and, as such, invites controversy and should, in a way, be challenged. A scientific procedure, on the other hand, is something which concretely exists, and as such must be first of all described, interpreted, understood, defined precisely and analyzed critically; this work may well lead to uncovering limitations of this procedure, or of certain ways of conceiving or defining it, but it does not lead to really challenging it.

Abstract: One Life-history Strategies -- 1 The life strategies of mites -- 2 Life-history evolution of spider mites -- 3 Life-cycle strategies in unpredictably varying environments: genetic adaptations in a colonizing mite -- 4 The evolutionary transformation of osmotic regulation in the life cycle of freshwater mites (Hydrachnidia) -- 5 Development and life-history strategies in mussel mites (Hydrachnellae: Unionicolidae) -- Two Reproduction -- 6 Spermatology in the Acari: systematic and functional implications -- 7 The distribution, mechanisms and evolutionary significance of parthenogenesis in oribatid mites -- 8 Indirect sperm transfer in prostigmatic mites from a phylogenetic viewpoint -- 9 Spermatophore deposition in relation to atmospheric humidity among terrestrial Parasitengonae (Prostigmata) -- 10 The role of Adlerocystis sp. in the reproduction of argasid ticks -- 11 A scanning electron-microscopy study of spermatogenesis in Pergamasus barbarus Berl. (Gamasida -- 12 Precise sex-ratio control in the pseudo-arrhenotokous phytoseiid mite, Typhlodromus occidentalis Nesbitt -- 13 Sex ratio, fitness and capacity for population increase in Pyemotes tritici (L.-F. and M.) (Pyemotidae) -- 14 Preliminary observations of ovoviviparity in the gallforming mite, Aceria caulobius (Nal.) (Eriophyidea: Eriophyidae) -- 15 Laboratory observations on duration of copulation and egg production of three phytoseiid species fed on pollen -- 16 Precopulatory mate guarding in the spider mite, Tetranychus cinnabarinus (Boisd.) (Tetranychidae) -- Three Diapause, Development and Trophic Relations -- 17 Physiological aspects of diapause in plant-inhabiting mites -- 18 Repeated induction and termination of diapause in the predacious mite, Amblyseius potentillae (Garman) (Phytoseiidae) -- 19 Inheritance of photoperiodic responses controlling diapause in the two-spotted spider mite, Tetranychus urticae Koch -- 20 Some observations on diapause in winter eggs of Panonychus ulmi (Koch) (Tetranychidae) -- 21 Reproduction, embryonic and postembryonic development of Trichouropoda obscurasimilis Hirschmann and Zirngiebl-Nicol 1961 (Anactinotrichida: Uropodina) -- 22 Resource allocation and utilization contrasts in Hypoaspis aculeifer (Can.) and Alliphis halleri (G. and R. Can.) (Mesostigmata) with emphasis on food source -- 23 The influence of different host plants on the reproductive potential of Tyrophagus putrescentiae (Schrank) and Tyrophagus neiswanderi Johnston and Bruce (Acaridae) -- 24 The relationship between house-dust mites and fungi -- 25 How plants maintain body-guards: plant exudate as a food source for phytoseiid mites -- Four Systematic, Morphology, Physiology and Behaviour -- 26 Distribution of characters and phylogenetic age — systematic problems in the higher taxa of the Oribatida -- 27 A new approach to the systematics of the genus Steganacarus (Oribatida) -- 28 The morphology of the immature stages of Phthiracaroidea (Oribatida) -- 29 A new interpretation of the epimeral theory of Grandjean -- 30 A comparison of the sclerotized parts of the reproductive organs of house-dust mites of the genus Dermatophagoides using scanning electron microscopy -- 31 Reproductive systems in Acaridida — some peculiar features -- 32 A respiratory apparatus in eggs of certain mites -- 33 Fine structure and functions of the mouthparts involved in the feeding mechanisms in Cenopalpus pulcher (Canestrini and Fanzago) (Tetranychoidea: Tenuipalpidae) -- 34 The alveolar salivary glands of the active phases of trombiculid mites (Trombiculidae) -- 35 Pigmentation in water mites of the genera Limnochares Latr. and Hydrodroma Koch (Hydrachnidia) -- 36 Biomass studies of water mites of the genera Limnochares Latr. and Hydrodroma Koch (Hydrachnidia) -- 37 The saltatory capacity of an oribatid mite -- 38 Thanatosis or feigning death in mites of the family Scutacaridae -- Five Field Studies and Applied Aspects -- 39 The effects of spider-mite feeding on plant performance in relation to biological control -- 40 Dispersion indices and constant precision sampling programmes for Panonychus ulmi (Koch) and Amblyseius andersoni (Chant) in Spanish apple orchards -- 41 Herbicides and the reproduction of Tetranychus urticae Koch -- 42 Phytoseiid mites associated with vines in Sicilian vineyards -- 43 Studies on mites associated with lucerne in Greece -- 44 Vertical distribution and life stages of oribatid communities on beech trees -- 45 Histiostoma murchiei Hughes and Jackson (Anoetidae) as a parasite in the cocoons of some Danish earthworms -- 46 Rearing deutonymphs of Iphidosoma fimetarium (J. Müller), a mesostigmatic mite associated with carabid beetles -- 47 Mites of the House mouse, Mus musculus L., in the north-eastern part of the Iberian Peninsula in Spain -- 48 Records of Ixodoidea from the Trentino-Alto Adige region in northern Italy -- 49 Seasonal and spatial variation in food intake by the oribatid mites of beech woodland soil -- 50 The effects of ploughing and rotary cultivation on soil mites with particular reference to the Mesostigmata -- 51 The influence of soil cultivation methods on the edaphic fauna, and especially the Gamasina (Mesostigmata), in two southern German vineyards with different cultural treatments -- 52 The density of Tarsonemida in cropped arable soil in relation to fertilizer and crop-protection treatments -- 53 Soil mites and acidification: a comparative study of four forest stands near Heidelberg -- 54 Reactions of mite populations to the influence of environmental chemicals in a beech-wood floor -- 55 Population studies on the house-dust mite. Euroglyphus maynei (Cooreman 1950) (Pyroglyphidae) -- 56 Management of mite development in the home -- 57 An indirect effect of cleaning on house-dust mites. (Dermatophagoides spp.) in carpets -- 58 Astigmatic and prostigmatic mites of grain stores, mills and sawmills in Finland -- Index to plant genera and species -- Index to animal genera and species -- Author index.

Abstract: During the Inaugural Meeting of the European Association of Acarol­ ogists (EURAAC), held in Amsterdam in 1987, it was decided that the holding of a Symposium at regular intervals should be a major objective. With this in view, it was agreed that Professor Reinhart Schuster, the senior editor, be invited to accept the Presidency of the Association and, arising from that Office, to organize the first Symposium in Austria in 1988. There was strong support for a main theme focused on a particular aspect of acarology. From these discussions there emerged the proposal that emphasis be placed on aspects of reproduction, development and life-history strategies of the Acari. These were topics in the forefront of the discipline with exciting developments of interest not only to acarologists but to a wider audience because of the light they cast on fundamental processes in physiology, ecology and evolutionary biology. The object then was to invite a small number of key workers to present extended papers related to the main theme. There were seven of these all of which appear in the book. The remaining 51 contributions were offered papers a number of which fit within the framework of the Symposium theme.

Abstract: 1 Botany -- 2 The cultivated hop -- 3 Production methods -- 4 Harvesting -- 5 Pests and diseases: historical review -- 6 Pests -- 7 Fungal diseases -- 8 Virus diseases -- 9 Varieties and breeding -- 10 The hop trade -- References.

Abstract: It is 25 years since Dr Burgess wrote his invaluable book on hops and in the intervening period there have been very many advances in hop research and hop production techniques. When invited to produce a replacement for that book, therefore, the problem was not finding enough new material but deciding on what to include. People interested in reading about the hop are likely to fall into very diverse categories. Hop growers will be looking for practical advice on production methods while research workers with specialist knowledge in one field may want detailed information about research in other disciplines. In addition, there are many people for whom hops are of much more general interest and for them a source of basic information about the crop will be required. The aim has not been to produce a detailed growers' handbook, since techniques vary considerably from district to district and I believe that it is better to obtain advice from neighbouring growers or from specialist advisers than from any book. What I have attempted is to outline the basic principles upon which production methods should be based. At the same time, I have tried to include material that will be of general interest both to those who work with hops and to those to whom they might otherwise remain a complete mystery. In doing this my own personal interests have inevitably played an important part.

Abstract: 1 Getting started -- 2 Passive circuits -- 3 Introducing active devices -- 4 File and analysis features -- 5 Output options -- 6 Multivalued resistors -- 7 Circuit waveforms and frequency response: Nyquist plot -- 8 Linear circuits: square waves and step functions -- 9 Non-linear circuits and waveform shaping -- Appendix A Control codes -- Appendix B HSpice Discrete Components library -- Appendix C Answers.

Abstract: After many years of teaching circuit theory and analogue electronic circuits the author believes that for most students the main path to obtaining a good understanding of the principles involved, as measured by their ability to apply them in a correct and intelligent manner, is through problem solving and design exercises. In an ideal world the student would be able to construct the circuit being analysed or designed, and so directly test the calculated or pre­ dicted results. Indeed, experience leads to the conclusion that typical students like to see their own circuits perform as intended, with a con­ sequent increase in motivation. At present, however, time and facility constraints mean that most of this work is of the pencil and paper variety, students having few opportunities to see the consequences of their efforts in a practical situation. At best they have to accept sample solutions or simply num­ erical answers. This path can seem tedious to all but the most motivated of students, so an alternative which can provide many of the benefits of direct circuit testing within the time and resources available is of im­ mediate interest. This is where the MINNIE and HSpice simulation package can assist the undergraduate teaching activity.

Abstract: 1 Introduction -- 2 History -- 3 Occurrence and isolation -- 4 Biological activities -- 5 Carbohydrate specificity -- 6 Molecular properties -- 7 Three dimensional structures -- 8 Biosynthesis -- 9 Applications -- 10 Lectin resistant cells -- 11 Functions in nature -- 12 Epilogue.

Abstract: A characteristic property of most, or perhaps all, proteins is their ability to combine specifically and reversibly with various substances. Well known examples are enzymes that bind substrates and inhibitors, and antibodies that bind antigens. This book deals with lectins, a class of proteins that bind carbohydrates. Another characteristic property of lectins is that they agglutinate cells or precipitate polysaccharides and glycoproteins. This is because lectins are polyvalent, i.e. each lectin molecule has at least two carbohydrate binding sites to allow crosslinking between cells (by combining with sugars on their surfaces) or between sugar containing macromolecules. The agglutinating and precipitating activities of lectins are very similar to those of antibodies. They can likewise be specifically inhibited by low molecular weight compounds (haptens), which in the case of lectins are sugars or sugar containing compounds (Fig. 1.1). Not surprisingly, therefore, many of the methods used in lectin research are based on immunochemical techniques. Nevertheless, lectins are different from antibodies in several important aspects. Many lectins are found in plants, microorganisms and viruses, which do not synthesize immunoglobulins. In fact, they are found in almost all living organisms (Table 1.1) and are not confined to specific organs or tissues. Another marked difference between the two classes of compound is that antibodies are structurally similar, whereas lectins are structurally diverse. In general, lectins are oligomeric proteins composed of subunits, usually with one sugar binding site per subunit.

Abstract: Content -- Theory and Measurement -- Vom Henker, vom Lügner und von ihrem Ende -- On the Current Status of the Issue of Scientific Realism -- Situation Semantics and the “Slingshot” Argument -- Notes on the Well-Made World -- Logical Foundations of Psychoanalytic Theory -- Friedlands Sterne oder Facta und Ficta -- Mathematics, the Empirical Facts, and Logical Necessity -- Quines Ontologiekriterium -- Zufall und Notwendigkeit in Wittgensteins Tractatus -- Moralbegründung ohne Metaphysik -- Probability as a Quasi-Theoretical Concept — J.V. Kries’ Sophisticated Account after a Century -- Valuations for Direct Propositional Logic -- Logical Semantics for Natural Language -- On How the Distinction between History and Philosophy of Science Should Not Be Drawn -- Vagueness and Alternative Logic -- The Rationalist Theory of Double Causality as an Object of Hume’s Criticism -- A Modest Concept of Moral Sense Perception -- Structuralism and Scientific Realism -- Deterministic and Probabilistic Reasons and Causes -- The Meaning of Probability Statements -- Normative Principles of Rational Communication -- Persönliche Anmerkungen.