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Now showing items 221-230 of 246
Aufsatz
Discriminating the quality of local pork from crossbred pork from extensive production of ethnic minorities in mountainous northern Vietnam
(Kassel University Press, 2017-03-07)
Developing short food supply chains for products from local pig (Sus scrofa domesticus) breeds may offer chances for smallholders in rural areas to participate in niche markets and obtain additional income. Because the authenticity and distinctness of products are crucial for establishing marketing, this study compared selected product characteristics of pork from the Vietnamese Ban breed with pork from crossbreds, each derived at their typical market weight and from their respective extensive and semi-extensive ...
Aufsatz
Droughts and debts: The domestic tea value chain and vulnerable livelihoods in Girimukti village, West Java, Indonesia
(Kassel University Press, 2017-03-23)
This article is concerned with the linkages between the livelihoods of tea smallholders and domestic value chains in Indonesia. Theoretically, our empirical inquiry is informed by an integration of the sustainable livelihoods approach and value chain analyses. This enables a better investigation of micro (livelihoods) — meso (industry) — macro (national and international trends and political economy) interdependencies and interactions. In addition to value chains and socioeconomic challenges, tea smallholders in ...
Buch
Where have all the classes gone?
(Rainer Hampp Verlag, Augsburg, München, 2017)
Numerous uprisings and social movements in recent decades sprawled in seemingly disconnected political landscapes, from Turkey to Brazil, from South Africa to China, from Argentina to Portugal. These social protests centered on issues as varied as the right to affordable transportation, land dispossession or minority rights. The place of the working class in them seemed increasingly insignificant, and the framework of class analysis outdated. But did the concept of class really become obsolete? Are these social ...
Buch
The Ends of Union Solidarity: Undocumented Labor and German Trade Unions
(Rainer Hampp Verlag, Augsburg, München, 2017)
Unionists part ways when it comes to the practical meaning of solidarity with workers who lack work permits. To some union members, undocumented migrant workers ought to be included in the bonds of union solidarity by virtue of being workers. To others, undocumented migrant workers are primarily illegal and unfair competitors undermining existing institutions of solidarity. In this controversial context, six union centers for undocumented migrant workers called MigrAr (German "Migration & Arbeit", English "migration ...
Dissertation
Interessenvertretung im föderalen System: Kommunale Spitzenverbände in Hessen und Niedersachsen
(2017-08-08)
Im föderalen System der Bundesrepublik steht dem zweiteiligen Staatsaufbau mit Bund und Ländern ein dreiteiliger Verwaltungsaufbau gegenüber, der die Kommunen als dritte Ebene umfasst. Wenn auch ohne Staatqualität, so spielen diese doch eine wichtige Rolle im politischen Prozess. Anders als die Länder, die auf nationaler Ebene im Bundesrat vertreten sind, ist für die Kommunen kein eigenes Vertretungsorgan im Grundgesetz vorgesehen. In der Praxis findet ihre Einbindung über die so genannten kommunalen Spitzenverbände ...
Dissertation
Modellierung von raum-zeitlichen Eigenschaften der Windenergieeinspeisung für wetterdatenbasierte Windleistungssimulationen
(2017-02-08)
This thesis describes statistical and mathematical models for the quantification of today’s and the representation of future characteristics of the wind power generation in time and space.
These models serve particularly for the quantification of the spatial distribution of installed wind power capacities, the calculation of the average hub heights of wind farms, the development of wind energy scenarios, the inserting of wind speed fluctuations into given wind speed time series, the modeling of the intermittent ...
Dissertation
Application and Analysis of physical and data-driven stochastic hydrological Simulation-Optimization Methods for the optimal Management of Surface-Groundwater Resources Systems: Iranian Cases Studies
(2017-08-09)
Application of physical and data-driven stochastic hydrological simulation-optimization techniques is a major title in water resources planning for the prediction of future water-affecting events and conditions. Appropriate models and algorithms such as conceptual surface-groundwater models, artificial intelligence models (ANN), swarm intelligence and fuzzy logic have been developed and used in many research projects of conjunctive management of surface-groundwater resources in recent years. The use of these models ...
Dissertation
Optimierung von Nanostrukturen in Dielektrika für biomedizinische und technische Applikationen durch zeitlich geformte Femtosekunden-Laserpulse
(2017-09-28)
Das Ablationsverhalten von Dielektrika wird in Abhängigkeit von unterschiedlich zeitlich geformten Femtosekunden-Laserpulsen analysiert. Dabei entstehen unterschiedlich tiefe Strukturen im Nano- und Mikrometerbereich. In zwei Anwendungsbeispielen wird deren Anwendbarkeit für biomedizinische und technische Applikationen beschrieben.
Dissertation
Role of grassland in phosphorus-flows in mixed organic farms
(2017-09-28)
The aim of the study is to analyze the role of grassland in phosphorus (P) flows in mixed organic farms. The research farm of the Thünen Institute of Organic Farming, Trenthorst, located in northern Germany was used for the analyses. The farm converted to organic farming in 2001 and had no P-fertilizer import. Grassland-related P flows (by grazing and harvesting) were estimated with a specific method using a calibrated rising plate meter (DM = 100.41 x h + 1 (r²=0.7549; n=396)). Inner farm nutrient cycles were ...
Dissertation
Computing Quot Schemes
(2017-02-27)
The main goal of this thesis is to develop computational methods which allow effective computations on Hilbert and Quot schemes. At first we introduce marked bases over modules. They may be considered as a form of Gröbner basis which do not depend on a term order. Instead, one chooses for each generator some term as head module term such that the head module terms generate a prescribed monomial module. We show that the involutive normal form algorithm with respect to Pommaret division will terminate if the prescribed ...