Montage : eine Bibliographie

Kompiliert von Hans J. Wulff Inhalt: 1. Montage 2. Montageexperiment

Das Wisconsin Projekt : zwischen Neoformalismus, Kognitivismus und historischer Poetik ; eine Bibliographie

Das folgende Verzeichnis listet alle uns bekannt gewordenen Arbeiten des "Wisconsin-Projektes" auf. Rezensionen und Rezensionsartikel sind nur dann einzeln verzeichnet, wenn sie unserer Meinung nach eine nennenswerte Auseinandersetzung mit dem Entwurf einer historischen Poetik des Films beinhalten. Andere Rezensionen finden sich unter dem Eintrag der Monographien

Formalismus & Filmtheorie : eine Arbeitsbibliographie

Die folgende Bibliographie gibt ein relativ umfassendes Bild der filmtheoretischen Arbeiten der Formalisten und ihrer breiten und heterogenen Rezeption. Hinweise zahlreicher Kollegen sind eingegangen. Dank gilt insbesondere Ludger Kaczmarek

Formation and Reactions of Brønsted and Lewis Acid Adducts with Electron-Rich Heteroaromatic Compounds

Electron-rich heteroaromatics, such as furan, thiophene and pyrrole, as well as their benzo-condensed derivatives, are of great interest as components of natural products and as starting substances for various products including high-tech materials. Although their reactions with Brønsted and Lewis acids play important roles, in particular as the primary step of various transformations, they are often disregarded and mechanistically not understood. The present publication gives a first overview about this chemistry focusing on the parent compounds. It comprises reactions with strong Brønsted acids forming adducts that can undergo intramolecular proton and/or substituent transfer reactions, ring openings or ring transformations into other heterocycles, depending on their structure. Interactions with weak Brønsted acids usually initiate oligomerizations/polymerizations. A similar behaviour is observed in reactions of these heteroaromatics with Lewis acids. Special effects are achieved when the Lewis acids are activated through primary protonation. Deuterated Brønsted acids allow straight forward deuteration of electron-rich heteroaromatics. Mercury salts as extremely weak Lewis acids cause direct metalation in a straight forward way replacing ring H-atoms yielding organomercury heterocycles. This review will provide comprehensive information about the chemistry of adducts of such heterocycles with Brønsted and Lewis acids enabling chemists to understand the mechanisms and the potential of this field and to apply the findings in future syntheses.This research received no external fundingPeer Reviewe

Effect of composition changes on the structure and properties of phosphate glasses in the pyrophosphate region

The structures of phosphate glasses in the ultra- and polyphosphate region are well-investigated. Discontinuous changes of the properties in the composition ränge around 50 mol% P₂O₅ (transition from network to chain-like structures) are known. The present work is concerned with the structural transition of chain-like phosphate glasses to pyrophosphate glasses. ³¹P MAS N M R in vestigations were used for the quantitative structural analyses of pyrophosphate and mixed pyrophosphate/orthophosphate glasses. Several chemical and physical properties of these glasses were determined in dependence on composition and structure. The in vestigated phosphate invert glasses are very sensitive to additives. Therefore, some important properties of phosphate invert glasses and glass-ceramics can be controlled by addition of relatively small and highly charged cations

Phosphate glasses and glass-ceramics for medical applications

Modified calcium phosphate glass Systems meet the requirements for the development of different biomaterials. Bioactive, longterm stable phosphate glass-ceramics and resorbable phosphate glasses were prepared in the Systems P₂O₅ - CaO - Al₂O₃ - Na₂O and P₂O₅ - CaO - MgO - Na₂O . Due to their high thermal expansion coefficients the bioactive phosphate glass-ceramics are excellently suited for coating metals. Using a salt-sintering process, porous resorbable glasses can be obtained. The properties of glassceramic coatings on cobalt/chromium alloys and the production of porous resorbable phosphate invert glasses are described

structural investigations of SiO₂-containing phosphate glasses

The incorporation of SiO₂ into phosphate glasses is interesting in view of the development of phosphatic biomaterials. The present investigation is concerned with the incorporation of SiO₂ into phosphate base glasses possessing different phosphate structures. Due to their structural characteristics, they can be classified into three groups: glasses with long phosphate chains or rings formed by Q² phosphate structural groups, glasses with shorter phosphate chains formed by Q² and Q¹ groups and glasses with phosphate invert glass structure, possessing ortho(Q°)- and pyrophosphate groups (two Q¹ groups) exclusively. The structures of these glasses in dependence on the incorporated silica were investigated by transmission electron microscopy and by ³¹P MAS NMR. The principles of incorporation are discussed

Täter-Opfer-Ausgleich in Deutschland. Auswertung der bundesweiten Täter-Opfer-Ausgleichs-Statistik für die Jahrgänge 2006 bis 2009, mit einem Rückblick auf die Entwicklung seit 1993

Ziel des Projektes ist die bundesweite Erfassung von Täter-Opfer-Ausgleich im Jugend- und Erwachsenenstrafrecht und die Erstellung einer Bundesstatistik über diese strafrechtliche Maßnahme der Diversion