Quantitative Methoden
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Quantitative Methods In Morphology Quantitative Methoden In Der Morphologie
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Author : Ewald R. Weibel
language : de
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Quantitative Methods In Morphology Quantitative Methoden In Der Morphologie written by Ewald R. Weibel and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Medical categories.
Stereologic techniques begin to play an increasing role in biologic morphology, particularly there where correlation of structure and function on a quantitative basis is sought. These powerful methods have been in use for many years - partly even for many decades - in geology, mineralogy and metallurgy, while attempts to introduce them into histology have remained rather rare until a few years ago. In order to stimulate discussion among anatomists about stereo logic methods the International Society for Stereology, an interdisciplinary society, organized a Sym posium on Quantitative Methods in Morphology which took place on August 10, 1965 in the framework of the Eighth International Congress of Anatomists in Wiesbaden, Germany. The papers presented at this symposium are published in this volume in slightly extended form. Some of the papers of this volume are of rather specialized nature and presume a basic knowledge of stereology. The first chapter on general stereological principles has therefore been considerably extended and short introductory review paragraphs have been added to a few subsequent chapters to help those who are not yet familiar with this new field in understanding the more specialized original articles. Long discussion periods formed an essential part of the symposium. However, they were conducted very informally and hence it would not have been profitable to reproduce them in extenso, particularly since the major results of discussion have been incorporated by the authors into the expanded manuscripts presented here.
Quantitative Linguistik Quantitative Linguistics
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Author : Reinhard Köhler
language : en
Publisher: Walter de Gruyter
Release Date : 2008-07-14
Quantitative Linguistik Quantitative Linguistics written by Reinhard Köhler and has been published by Walter de Gruyter this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-07-14 with Language Arts & Disciplines categories.
Over the past two decades, statistical and other quantitative concepts, models and methods have been increasingly gaining importance and interest in all areas of linguistics and text analysis, as well as in a number of neighboring disciplines and areas of application. The term "quantitative linguistics" comprises all scientific and technical approaches which use such terms and methods in the analysis of or work with language(s), texts and other related subjects. The 71 articles in this handbook, written by internationally-recognized experts, offer a broad, up-to-date overview of the scientific-theoretical principles, the history, the diversity of the subject areas studied, the methods and models used, the results obtained thus far and their applications. The articles are divided up into thirteen chapters: the first chapter includes contributions on the basic principles and the history of the field, nine additional chapters are dedicated to individual descriptions of the levels of linguistic research (from phonology to pragmatics) as well as typological, diachronic and geolinguistic questions. The next two chapters include a description of important models, hypotheses and principles; selected areas of application; and references to neighboring disciplines. The last portion of the handbook is an informative contribution, with information about publication forums, bibliographies, major projects, Internet links, etc. This handbook is useful not only for researchers, teachers and students of all branches of linguistics and the philologies, but also for scientists in neighboring fields, whose theoretical and empirical research touches on linguistic questions (for instance, psychology and sociology), or for those who want to make use of the proven methods or results from quantitative linguistics in their own research.
Quantitative Methoden Der Organisationsforschung
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Author : Stefan Kühl
language : de
Publisher: Springer-Verlag
Release Date : 2005-04-12
Quantitative Methoden Der Organisationsforschung written by Stefan Kühl and has been published by Springer-Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-04-12 with Social Science categories.
Dieses Handbuch verschafft einen Überblick über die quantitativen Methoden der Organisationsforschung. Befragungen, Beobachtungsmethoden, Simulation und Modellierung, Experiment und Planspiel sowie verschiedene Analysemethoden werden im Detail dargestellt. Der Schwerpunkt der Beiträge liegt auf der ausführlichen Beschreibung der Datenerhebung und der Dateninterpretation. Ein Beispiel aus der Praxis der empirischen Organisationsforschung verdeutlicht die Vorgehensweise. In einem eigenen Abschnitt über die Möglichkeiten und Grenzen der jeweiligen Methode wird auf potenzielle Fallstricke hingewiesen. Die übergreifende Struktur, die durchgängige Herangehensweise und der hohe Praxisbezug versetzen Wissenschaftler und Studierende aber auch Praktiker in die Lage, das Methodeninstrumentarium der quantitativen Organisationsforschung gezielt für eigene Zwecke einzusetzen und weiterzuentwickeln.
Moderne Methoden Der Pflanzenanalyse Modern Methods Of Plant Analysis
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Author : K. Paech
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Moderne Methoden Der Pflanzenanalyse Modern Methods Of Plant Analysis written by K. Paech and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
If, following the solvent extraction of a hydrocarbon from a plant, it is not known whether it is one or the other, a method of distinguishing the two is described by HENDRICKS, WILDMAN and JONES (1946). The technique involves the infra-red absorption spectra of the two isomers. At about 12 mp. the relative absorption coefficient of rubber is 42% greater than for gutta. ScHLESINGER and LEPER (1951) describe two procedures for separation of the rubber and gutta hydrocarbons from large quantities of crude chicle. In one, the chicle is extracted with benzene which dissolves both isomers. An excess absolute ethyl acetate is added and the mixture stored at 5° C overnight. The gutta precipitates out and the rubber remains in solution. The other method is as follows: (1) Ten grams of chicle are extracted with acetone for 24 hours in a Soxhlet extraction apparatus. (2) The insoluble material in the thimble is allowed to .. it dry, then immersed in 150 ml. of cold Skellysolve B in a refrigerator at 10° C and· allowed to stand for 48 hours with occasional agitation. (3) The thimble is then removed from the solvent and the enclosed residue washed several times with fresh, cold Skellysolve B. (4) An excess of acetone and a few drops of a concentrated aqueous solution of sodium iodide are added to the combined Skellysolve B extract and washings and allowed to stand overnight in a refrigerator.
Sociolinguistics Soziolinguistik Volume 3
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Author : Ulrich Ammon
language : en
Publisher: Walter de Gruyter
Release Date : 2008-07-14
Sociolinguistics Soziolinguistik Volume 3 written by Ulrich Ammon and has been published by Walter de Gruyter this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-07-14 with Language Arts & Disciplines categories.
No detailed description available for "SOCIOLINGUISTICS (AMMON) 3.TLBD HSK 3.3 2A E-BOOK".
Quantitative Methoden In Der Politikwissenschaft
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Author : Markus Tausendpfund
language : de
Publisher: Springer-Verlag
Release Date : 2018-02-10
Quantitative Methoden In Der Politikwissenschaft written by Markus Tausendpfund and has been published by Springer-Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-02-10 with Political Science categories.
Dieses Lehrbuch bietet eine Einführung in die sozialwissenschaftliche Forschungslogik und den quantitativen Forschungsprozess. Die einzelnen Phasen des Forschungsprozesses – Forschungsthema und Entwicklung einer Forschungsfrage, Konzeptspezifikation, Hypothesenbildung, Operationalisierung, Forschungsdesign, Auswahlverfahren und Datenerhebung – werden anhand politikwissenschaftlicher Beispiele dargestellt und erläutert. Zudem werden wichtige sozialwissenschaftliche Datensätze vorgestellt und die Bedeutung der Sekundäranalyse herausgearbeitet. Das Buch bietet damit zentrale Informationen, die für ein Verständnis der quantitativen Sozialforschung und die Auseinandersetzung mit empirischen Studien erforderlich sind.
Quantitative Methoden Kompakt
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Author : Nicole Burzan
language : de
Publisher: UTB
Release Date : 2015-04-22
Quantitative Methoden Kompakt written by Nicole Burzan and has been published by UTB this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-22 with Social Science categories.
Befragung, Inhaltsanalyse oder Beobachtung – quantitative Methoden sind ein zentrales Werkzeug der empirischen Sozialforschung. Mit vielen anschaulichen Beispielen stellt Nicole Burzan diese Methoden vor. Gleichzeitig ordnet sie sie in den Forschungsprozess von der Operationalisierung des Themas über die Fallauswahl und Datenerhebung bis zur Datenauswertung ein. So erhalten die Leser/innen einen Überblick über die Methoden der Sozialforschung und können Forschungsergebnisse empirischer Studien kritisch hinterfragen. Ein Buch für BA-Studierende, die keine dicken Wälzer lesen, aber trotzdem alles Wichtige über quantitative Sozialforschung wissen wollen.
Modern Methods Of Plant Analysis Moderne Methoden Der Pflanzenanalyse
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Author : K. Paech
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Modern Methods Of Plant Analysis Moderne Methoden Der Pflanzenanalyse written by K. Paech and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.
Energy Terminology
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Author : World Energy Conference
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Energy Terminology written by World Energy Conference and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
In this new edition standard energy terms in worldwide use are presented in 19 sections collectively containing over 1300 terms covering both conventional and modern sources, technology, equipment and supply systems, in English, French, German and Spanish. Three new sections are introduced: Forecasting and Methodology, including general and more specific terms relating to quantitative economic energy forecasting; Uses of Energy, ranging from terms associated with consumers and energy supply to terms concerned with industrial and chemical usage; and Measurement and Control Technology, which covers instrumentation, techniques and safety terminology. Fully indexed and specially designed for rapid cross-reference, this glossary is a useful reference guide for all scientists, technical writers and economists with an interest in this field.
Modern Methods Of Plant Analysis Moderne Methoden Der Pflanzenanalyse
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Author : K. Biemann
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Modern Methods Of Plant Analysis Moderne Methoden Der Pflanzenanalyse written by K. Biemann and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
123 phase and hence have no direct bearing on the retention time of solutes. However in gas-solid chromatography, a considerable quantity of the mobile phase may be adsorbed on the surface of the stationary adsorbent which diminishes the column's effective length and ability to retain solutes. In this respect helium has been found to be preferable to most other gases (GREENE and Roy, 1957) because it is adsorbed to the least extent. 3. Packed columns offer a considerable resistance to flow, which may create a pressure differential between inlet and outlet of sufficient magnitude to cause an unfavorable flow rate through a significant length of the column. A reduced inlet/outlet pressure ratio can be obtained by using light molecular weight gases toward which the column packing shows the greatest permeability. The flow rate of the mobile phase is normally adjusted by altering the column inlet pressure, for which purpose commercial pressure regulators of sufficient accuracy are available. Quantitative measurements of the flow rate can be made by a number of methods, including rotameters, orifice meters, soapfilm flow meters and displacement of water. The former two methods are the most con venient but the least accurate; moreover they create a back pressure and are temperature dependent whereas although the moving soap bubble is cumbersome to employ and unusable for continuous readings, it is preferred when the highest accuracy is required.