Keeping pace with explosive developments in the field, Colloidal Science of Flotation reviews and updates the fundamentals of the bubble-particle collection phenomenon using a self-consistent approach that helps readers understand the hydrodynamic aspects of bubble-particle collection. The authors examine bubble rise velocity, water velocity around air bubbles, the thinning of intervening liquid films, the stability of particle-bubble aggregates, and macroscopic processes in froth. They also survey the applicability of emerging technologies in industrial flotation deinking, wastewater treatment, flotation of plastics, and improvements in minerals and coal flotation.

Internationally recognized Bach authority Hans-Joachim Schulze authored a 225-part series on the cantatas of Johann Sebastian Bach. In this collection, James A. Brokaw II translates a selection of the essays, illuminating a wide range of biographical and cultural features of Bach’s life and creative milieu. Schulze’s lively and engaging discussions provide a wealth of rewarding insights and perspectives focusing on individual cantatas, their texts, and the questions of chronology and context that attend them. The University of Illinois Press has paired the volume with a special web-based companion overseen by the translator and hosted by the Illinois Open Publishing Network. This online resource includes Brokaw’s translations of all 225 of Schulze’s essays alongside digital tools for searching, sorting, and bundling the commentaries according to date of composition, position within the liturgical church year sequence, and librettist.

The book treats the C -hydrocarbons and their secondary products as a contribution 4 to chemical engineering economics, applying this field of teaching and research to the technical processes for making and processing this group of products, so important to the chemical industry. As early as tpe 1950s the then director of the Institute for Technical Chemistry of the Berlin Technical University, Professor Herbert Kolbel, took the' initiative in the domain of Chemical Engineering Economics and began systematic studies of Project Engineering and Cost Estimation in connection with chemical plants. He also started a course on technical chemical processes in 1966. Properties, production procedures, plant equipment, and also the uses of technically interesting products are the central features of Chemical Technology. The information is to be found in the large encyclopedias of Technical Chemistry. On the other hand, Chemical Engineering Economics deals with all the economic conditions of usage of the raw materials, possibilities of utilizing co-products, and the integration of these products into definite production programmes, from the stand point of the chemical and technical fundamentals of the processes. Further important viewpoints are the costs of the products, taking into consideration important and variable influences on these costs, the situation and development of the market for the products and, of increasing significance, also the ecological global conditions for procuring raw materials and the production and marketing of the particular products."

The book series Beihefte zur Zeitschrift fur romanische Philologie, founded by Gustav Groeber in 1905, is among the most renowned publications in Romance Studies. It covers the entire field of Romance linguistics, including the national languages as well as the lesser studied Romance languages. The editors welcome submissions of high-quality monographs and collected volumes on all areas of linguistic research, on medieval literature and on textual criticism. The publication languages of the series are French, Spanish, Portuguese, Italian and Romanian as well as German and English. Each collected volume should be as uniform as possible in its contents and in the choice of languages.

Mit der Behandlung literarischer Texte im Schulunterricht werden Wertvorstellungen vermittelt, deren Wahrnehmung und Verstandnis von entwicklungspsychologischen Voraussetzungen abhangig ist. Die Geltungsanspruche dieser Handlungsimperative koennen in einer Lerngruppe unterschiedlich wirksam sein und zu Kontroversen fuhren - das 4-Phasen-Modell von Kreft sichert hier den methodischen Rahmen fur eine geleitete Erschliessung von normativen Textinhalten. Dennoch erwirbt weniger als ein Viertel eines Jahrgangs eine literar-asthetische Kompetenz, es wird deshalb ein Kurssystem nach finnischem oder neuseelandischem Vorbild vorgeschlagen.

This book presents a standardized framework for the analysis of family development and family policies in Europe. It offers an accessible and coherent account of how harmonized--or not--the various countries are in terms of cultural and political attitudes towards the family, as well as institutions.

This is a comparative study of family change in Europe and its dependency on social policy regimes. The authors explore family discourse, family law, single parents, gender relations, the 'new fathers', divorce, and abortion within the framework of national policies vis-à-vis the family.

Fiir die Wirtschaftlichkeit chemischer Anlagen sind weder das chemische Ver- fahren noch die technische Anlagengestaltung allein maBgebIich. Hieriiber ent- scheiden erst die wirtschaftlichen Daten Kapitalbedarf, Kosten und Ertrag. In dem vor einem Jahrzehnt erschienenen Werk "Projektierung und Vorkalkulation in der chemischen Industrie" haben wir uns besonders mit der Ermittlung des Kapitalbedarfs, der Kosten und der Wirtschaftlichkeitsdaten befaBt, die Fragen der Ertragsgestaltung jedoch weitgehend ausgeklammert. Der sich aus den realisierbaren Absatzmengen und Verkaufspreisen ergebende Ertrag aber ist die groBte Unbekannte in allen Vorausberechnungen und Planungen. Dber ihn ent- scheidet nicht nur die Eigeninitiative, sondern vor aHem der Absatzmarkt mit seiner Vielzahl von schwer faBbaren EinfluBgroBen. Zudem werden die Absatz- chancen immer mehr zum entscheidenden Engpa(3 des wirtschaftlichen Erfolges. Was in anderen Industriezweigen bereits seit langem selbstverstandlich ist, be- ginnt sich heute im Zuge wachsender Konkurrenz auch in der chemischen Indu- strie abzuzeichnen: die notwendige Ausrichtung alier betrieblichen Denkweisen und Handlungen am Absatzmarkt im Sinne des Marketing. Die erstmalige zusammenfassende Bearbeitung des Absatzes in der chemischen I ndustrie erscheint damit als eine notwendige FortfUhrung unseres friiheren Werkes.

Die chemische Industrie ist durch ein aussergewoehnliches Entwickhmgs tempo gekennzeichnet. Bei vielen namhaften Gesellschaften betragt der Anteil der nach 1948 neu entwickelten Produkte mehr als 40% der Ge samterzeugung. Bei der starken Konkurrenz und der oft nur beschrankten Nutzungsdauer neuer Produktionsverfahren hangt der wirtschaftliche Erfolg wesentlich von der Schnelligkeit der Investitionsentscheidung und der Errichtung der Anlagen ab. Die Ermittlung des Kapitalbedarfs fur die neuen Anlagen, die Vorkalkulation der Kosten der neuen Produkte, die Beurteilung der Wirtschaftlichkeit und die Technik der Projektierung neuer Anlagen sind hierfur von entscheidender Bedeutung. Es erschien daher notwendig und an der Zeit zu versuchen, die Pro bleme und Methoden der Vorkalkulation und Projektierung bei der aus gedehnten chemischen Industrie Deutschlands zusammenfassend dar zustellen. Im Gegensatz zu dem grossen Umfang amerikanischer Spezial literatur fehlt es namlich bisher an entsprechenden deutschsprachigen Werken, wenn man von Einzelveroeffentlichungen absieht, unter denen besonders die Arbeiten von K. SCHOENEMANN zu beachten sind.

Internationally recognized Bach authority Hans-Joachim Schulze authored a 225-part series on the cantatas of Johann Sebastian Bach. In this collection, James A. Brokaw II translates a selection of the essays, illuminating a wide range of biographical and cultural features of Bach’s life and creative milieu. Schulze’s lively and engaging discussions provide a wealth of rewarding insights and perspectives focusing on individual cantatas, their texts, and the questions of chronology and context that attend them. The University of Illinois Press has paired the volume with a special web-based companion overseen by the translator and hosted by the Illinois Open Publishing Network. This online resource includes Brokaw’s translations of all 225 of Schulze’s essays alongside digital tools for searching, sorting, and bundling the commentaries according to date of composition, position within the liturgical church year sequence, and librettist.

In Bach in America, volume 5 of Bach Perspectives, nine scholars track Johann Sebastian Bach's reputation in America from an artist of relative obscurity to a cultural mainstay whose music has spread to all parts of the population, inspired a wealth of scholarship, captivated listeners, and inspired musicians.

More than a hundred years passed after Bach's death in 1750 before his music began to be known and appreciated in the United States. Barbara Owen surveys Bach's early reception in America and Matthew Dirst focuses on John Sullivan Dwight's role in advocating Bach's work. Michael Broyles considers the ways Bach's music came to be known in Boston and Mary J. Greer offers a counterpoint in her study of Bach's reception in New York.

The volume continues with Hans-Joachim Schulze's essay linking the American descendants of August Reinhold Bach to J. S. Bach through a common sixteenth-century ancestor. Christoph Wolff focuses on Bach's descendants in America, particularly Friederica Sophia Bach, the daughter of Bach's eldest son, Wilhelm Friedemann. Peter Wollny evaluates several manuscripts not included in Gerhard Herz's study of Bach Sources in America. The book concludes with examinations of Bach's considerable influence on American composers. Carol K. Baron compares the music of Bach and Charles Ives and Stephen A. Crist measures Bach's influence on the jazz pianist and composer Dave Brubeck.