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Recent Developments in the Field of Modified Patankar-Runge-Kutta-methods
(2021-12-14)
Modified Patankar-Runge-Kutta (MPRK) schemes are numerical one-step methods for the solution of positive and conservative production-destruction systems (PDS). They adapt explicit Runge-Kutta schemes in a way to ensure positivity and conservation of the numerical approximation irrespective of the chosen time step size. Due to nonlinear relationships between the next and current iterate, the stability analysis for such schemes is lacking. In this work, we introduce a strategy to analyze the MPRK22(α)-schemes in the ...
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Vibrotaktile Codierung von Standardfunktionen einer Menüführung
(2020-03-03)
Tactons sind taktile Nachrichten, die dem Nutzer Informationen über den haptischen Sinneskanal übermitteln, und können beispielsweise bei der Interaktion mit Touchscreens von Nutzen sein. In dieser Studie wird die systematische Erarbeitung eines Tacton-Sets für Standardfunktionen einer Menüführung (im Einzelnen die Funktionen Beenden, Bestätigen, Hauptmenü, Hilfe, Korrektur, Lauter, Leiser sowie Zurück) vorgestellt. Neben existierenden Erkenntnissen aus der Literatur wurden bei der Gestaltung des Tacton-Sets ebenfalls ...
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Improving Animal Health on Organic Dairy Farms: Stakeholder Views on Policy Options
(2020-04-09)
Although ensuring good animal health is a stated aim of organic livestock farming and an important reason why consumers purchase organic products, the health states actually achieved are comparable to those in conventional farming. Unfortunately, there have been no studies to date that have assessed stakeholder views on different policy options for improving animal health on organic dairy farms. To address this deficit, stakeholder consultations were conducted in four European countries, involving 39 supply-chain ...
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Durability Properties of Ultra-High Performance Lightweight Concrete (UHPLC) with Expanded Glass
(2021-10-05)
It is important to ensure the durability and safety of structures. In the case of newly developed materials that are outside the current rules, it is important to investigate all aspects of structural safety. The material studied in the following is a structural lightweight concrete with an ultra-high-performance matrix and expanded glass as a lightweight aggregate. The material, with a compressive strength of 60–100 MPa and a bulk density of 1.5–1.9 kg/dm³, showed high capillary porosities of 12 vol% (ultra-high-performance ...
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Developing and publishing strong empirical research in sustainability management - adressing the intersection of theory, method, and empirical field
(2021-02-05)
Students starting their research into sustainability management are often driven by a normative assumption of wanting “to do something good” or “save the world” from this or that problem. This also holds for many researchers, where the pressure to do research that has an immediate impact on the local business or natural environment is paramount. This often gets into the way of developing sound research that might pass the review process in strong academic journals. Good (empirical) research builds on the interplay ...
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Hybride Wissensarbeit
(2021-04-30)
Aufgrund der Fortschritte im Bereich der künstlichen Intelligenz (KI) ergeben sich neue Gestaltungsmöglichkeiten zur Reorganisation von Wissensarbeit an der Schnittstelle von Menschen und Maschine. Durch die Verschmelzung von menschlicher und künstlicher Intelligenz können komplementäre Stärken zum Lösen von Arbeitsaufgaben gebündelt werden. Neuartige Wissensarbeitssysteme sind erforderlich, die Wissensarbeitende sowohl bei der Ausübung von Routineaufgaben als auch Nichtroutineaufgaben unterstützen.
Der Schlagwortartikel ...
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Establishing a Sustainable Waste Management System in a Transitional Economic Context: Analysis of the Socio-Economic Dynamics
(2020-05-09)
Establishing a sustainable waste management system concerns multiple aspects of the prospected geo-locations. Among them, the dynamics of the socio-economy play a crucial role. Based on the idea of circular economy (CE), the amount of waste, in general, should be reduced and the process of social involvement is embedded. This study aims to examine the social willingness towards a sustainable waste management system at a local level in Georgia. The research study was conducted with waste management analyses in Marneuli ...
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Rechtsverträgliche und qualitätszentrierte Gestaltung für "KI made in Germany"
(2020-02-21)
Künstlich intelligente (KI) Systeme erfreuen sich immer größerer Beliebtheit. Insbesondere smarte persönliche Assistenten (SPAs) von Amazon, Google und vielen weiteren verzeichnen ein stetiges Marktwachstum. Den vielfältigen Potenzialen dieser KI-Systeme stehen jedoch auch zahlreiche Risiken gegenüber. Berichte von Datenpannen und -lecks häufen sich und haben bei Nutzern eine zunehmende Skepsis zur Folge, was zu einem gespaltenen Bild von KI in der Gesellschaft beiträgt. Diesem Problem stellt sich das Forschungsprojekt ...
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A Study of Extensions of Classical Summation Theorems for the Series ₃F₂ and ₄F₃ with Applications
(2021-03-16)
Very recently, Masjed-Jamei & Koepf [Some summation theorems for generalized hypergeometric functions, Axioms, 2018, 7, 38, 10.3390/axioms 7020038] established some summation theorems for the generalized hypergeometric functions. The aim of this paper is to establish extensions of some of their summation theorems in the most general form. As an application, several Eulerian-type and Laplace-type integrals have also been given. Results earlier obtained by Jun et al. and Koepf et al. follow special cases of our main findings.
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Complex dynamics in psychosocial work with unaccompanied minor refugees with uncertain future prospects: A case study
(2020-09-09)
This case study explores the arriving process of an unaccompanied minor refugee in Germany and his perception of the psychosocial support he received. The aim is to elaborate possibilities to support refugee adolescents' arrival processes adequately. Two interviews—theme‐centered and narrative—were conducted and afterwards examined by a group of five researchers who used experts' validation as the analyzing tool. Four main dimensions were identified contributing to the complex dynamics in psychosocial work with ...