Since its inception in the famous 1936 paper by Birkhoff and von Neumann entitled "The logic of quantum mechanics" quantum logic, i.e. the logical investigation of quantum mechanics, has undergone an enormous development. Various schools of thought and approaches have emerged and there are a variety of technical results.
Quantum logic is a heterogeneous field of research ranging from investigations which may be termed logical in the traditional sense to studies focusing on structures which are on the border between algebra and logic. For the latter structures the term quantum structures is appropriate.
The chapters of this Handbook, which are authored by the most eminent scholars in the field, constitute a comprehensive presentation of the main schools, approaches and results in the field of quantum logic and quantum structures. Much of the material presented is of recent origin representing the frontier of the subject.
The present volume focuses on quantum structures. Among the structures studied extensively in this volume are, just to name a few, Hilbert lattices, D-posets, effect algebras MV algebras, partially ordered Abelian groups and those structures underlying quantum probability.
- Written by eminent scholars in the field of logic
- A comprehensive presentation of the theory, approaches and results in the field of quantum logic
- Volume focuses on quantum structures

Seminar paper from the year 2006 in the subject Business economics - Marketing, Corporate Communication, CRM, Market Research, Social Media, grade: 1,7, LMU Munich, language: English, abstract: This paper investigates the evaluation of the measurement properties of collage research. After a classification and an introduction about the qualitative and visual research, the collage technique is described. Different characteristics and aspects of a collage are shown. Then, the classical measurement properties are explained in detail: Objectivity, reliability and validity. A conclusion is always pointed out of the results for the collage research. All in all, the classical measurement properties cannot be adapted simply to the collage technique. Finally, the most important issues are resumed and an outlook for further researches is taken. The analysis is focused on expert literature like market research papers and different textbooks. The difficulty was to develop guidelines for the collage research based on the classical measurement properties. Besides, a discussion with a researcher enforced the results in a qualitative way. Finally the soundness of the findings is guaranteed due to the continuous review of the sources and the data.

This monograph is an investigation into certain new logical structures implicit in the formalism of quantum mechanics. Its message rests on two pillars. The first pillar is the dynamic view of propositions. Propositions are viewed as acting on states of the world and changing them rather than just being true or false in them. The second pillar is a logical enquiry into the nature of the states of a dynamic framework in general and thus the nature of physical states in particular. It turns out that a physical state viewed as a logical entity must encode other states and also itself. The main logical structures under investigation are that of an M-algebra and that of a holistic logic. In a sense to be made precise the latter structures reflect the 'holistic' nature of quantum mechanics.

Studienarbeit aus dem Jahr 2007 im Fachbereich BWL - Allgemeines, Note: 2,0, Ludwig-Maximilians-Universitat Munchen, Sprache: Deutsch, Abstract: Diese Seminararbeit beschaftigt sich mit dem Wettbewerb bei Arzten, wobei zwischen niedergelassenen Arzten und Gruppenpraxen bzw. Partnerschaften unterschieden wird. Es erfolgt eine Darstellung, inwiefern agglomerative Grunde und Marktwettbewerbsgrunde bei der Standortwahl des Arztes von Relevanz sind. Die Hauptfolgen von Wettbewerb, die gleichzeitig auch die Grunde fur ein Marktversagen sein konnen, sind die angebotsinduzierte Nachfrage und die ungleiche geographische Aufteilung. Es gibt verschiedene Vor- und Nachteile von Wettbewerb bei Arzten, und das Thema ist ein ausserst wichtiger Bestandteil zukunftiger politischer Entscheidungen im Gesundheitsmarkt. Die Literatursuche fokussierte sich vornehmlich auf fachspezifische Studien und Zeitschriften, aber auch das Internet und verschiedene Online-Magazine dienten als Recherchequellen. Daruber hinaus wurde der Markt aufgrund von branchenspezifischen Untersuchungen und einer ausfuhrlichen Presseanalyse sowohl von der Angebots-, als auch von der Nachfrageseite betrachtet. Ein Expertengesprach erganzte die Recherchen qualitativ und quantitativ. Die Validitat der Ergebnisse wurde durch einen standigen Quellenabgleich und der Datenuberprufung gewahrleistet. ...