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Now showing items 201-210 of 263
Dissertation
The Acceptance of Serious Games by Mental Health Service Users and Mental Health Professionals: An International Comparison Study
(2021)
Research aim. This study investigates which determinants predict the intention to use SG in psychotherapeutic settings among both relevant application groups: mental health service users (individuals with psychotherapy experience either currently or in the past) and mental health professionals. Since ethnicity, socioeconomic status, and culture highly interplay with (e-mental health) technology uptake (Clough et al., 2019), SG acceptability was assessed in several countries (N = 13) by particularly considering the ...
Preprint
Identifying critical demand scenarios for the robust capacitated network design problem using principal component analysis
(2021-11-30)
In this paper, we consider the single-commodity robust network design problem. Given an undirected graph with capacity installation costs on its edges and a set S of scenarios with associated flow balance vectors that represent different scenarios of node supplies and demands, the goal is to find integer edge capacities that minimize the total installation cost and permit a feasible single commodity flow for each scenario. This problem arises, for example, in the design of power networks, which are dimensioned to ...
Dissertation
Untersuchungen zur Synthese, Reaktivität und Struktur von unsymmetrisch substituierten Phospholen
(2021)
In Rahmen dieser Arbeit wurden Phosphole mit unterschiedlichen Funktionalisierungen hergestellt und charakterisiert. Die Verwendung von unsymmetrisch substituierten 1,4-Diinen resultierte in Produkten, die aufgrund ihres Substitutionsmusters ein stereogenes Zentrum am Phosphoratom besitzen. Phosphole, insbesondere ihre β-H-Derivate, zeichnen sich durch ihre exzellenten lumineszenten Eigenschaften aus. Diese machen sie für vielfältige Anwendungen interessant. So gibt es im Bereich der OLED-Entwicklung bereits ...
Dissertation
Kann Selbsthilfe-Wohnungsbau sozial sein?
(LIT-VerlagArchimed Verlag, 2021)
Wohnungen des gewerblichen Sektors sind in den Ländern Lateinamerikas für die Mehrheit der Bevölkerung nicht erschwinglich, während die staatlich geförderten Wohnungen in der Regel nur einen geringen Bruchteil des Bedarfs abdecken. Deswegen wird die Mehrheit aller Wohnungen in Selbsthilfe erstellt. Von vielen Wissenschaftlern wird der faktische Zwang zum Selbstbau als doppelte Ausbeutung marktwirtschaftlich organisierter Ökonomien kritisiert, da der Erlös der seitens der Bevölkerung produzierten Güter bzw. erbrachten ...
Dissertation
Bestimmung der mittleren Clustergröße und ortsspezifischen Zustände homogener Edelgascluster mittels Fluoreszenzspektroskopie
(2021)
Der Übergang von mikroskopischen zu makroskopischen Systemen ist in den Naturwissenschaften von grundlegendem Interesse, da im zugehörigen Übergangsbereich größenabhängige Entwicklungen physikalischer Eigenschaften sowie auch gänzlich neue Prozesse auftreten. Edelgascluster ermöglichen einen experimentellen Zugang zur Untersuchung dieses Zwischenbereichs.
Die durch Van-der-Waals-Kräfte gebundenen inerten Edelgasatome fungieren als Prototypsysteme zur Untersuchung derartiger fundamentaler Prozesse. Sie werden mittels ...
Dissertation
Long-term voltage stability of electric power systems hosting inverter-interfaced energy sources
(2021)
The study of power system dynamics refers to the motion of electro-mechanical and electro-magnetic quantities such as voltages, currents, rotational speeds, angles and powers under the action of forces caused by system disturbances. For decades, such dynamics have been extensively dominated by large Synchronous Generators (SGs). Not a surprising statement, considering that the power systems that we know today were built based on the SG concept since the closing decades of the 19th century. It all began in 1891, when ...
Working paper
The Political-Administrative Elite of the FRG from 1949 to 2017
(2021)
This data report on the political and administrative elité in Germany (West Germany/FRG) is part of the research project "New Elites – Established Personnel? (Dis-) Continuities of German Ministries in System Transformations" at the Chair of Public Management at the University of Kassel. The presentation of the results is divided into the sections social structure, education, career, political activity and and references to political systems. The data report contains frequency analyses of selected variables described ...
Aufsatz
Finding alternatives: Canadian attitudes towards novel foods in support of sustainable agriculture
(2021-09-29)
Global agriculture and farming practices account for roughly a quarter of total atmospheric emissions. Protein agricultural is especially prone to green-house gas emissions. There is a need to find alternatives, both in the form of protein and sustainable practices in providing alternative protein sources. However, sustainable agricultural practices must consider consumer behaviour and attitude towards switching protein sources. In this study, we carried out a survey of 993 Canadians in order to better understand the ...
Aufsatz
Additive Manufacturing of Compositionally-Graded AISI 316L to CoCrMo Structures by Directed Energy Deposition
(2021-08-30)
In the present study, compositionally-graded structures of AISI 316L and CoCrMo alloy are manufactured by powder-based laser-beam directed energy deposition (DED-LB). Through a process-integrated adjustment of powder flow, in situ alloying of the two materials becomes feasible. Thus, a sharp and a smooth transition with a mixture of both alloys can be realized. In order to investigate the phase formation during in situ alloying, a simulation approach considering equilibrium calculations is employed. The findings ...
Zeitschrift
Vol. 9 No. 4 (2021)
(Specialized Partnerships in Sustainable Food Systems and Food Sovereignty, Faculty of Organic Agricultural Sciences, the University of Kassel, Germany and the Federation of German Scientists (VDW), 2021-11)