József Popp 1,†, Mónika Harangi-Rákos 1,†, Zoltán Gabnai 2,†, Péter Balogh 1,†, Gabriella Antal 1,*,† and Attila Bai 2,† 1 Institute of Sectoral Economics and Methodology, Faculty of Economics and Business, University of Debrecen, Debrecen 4032, Hungary; [email protected] (J.P.); [email protected] (M.H.-R.); [email protected] (P.B.) 2 Institute of Business Economics...

Many business situations such as events, products and services, are often described in a hierarchical structure. When we use case-based reasoning (CBR) techniques to support business decision-making, we require a hierarchical-CBR technique which can effectively compare and measure similarity between two hierarchical cases. This study first defines hierarchical case trees (HC-trees) and discusse...

The purpose of the study has been an investigation students’ attitudes towards teaching business correspondence in English with use imagination and humour, as expressed questionnaire reflected writing. It was assumed that imagination, creativity humour would motivate students to practise writing develop their skills. is based on both analysis actual well a regarding simulation practising corres...

We discuss several tests for duration dependence, and establish a few theoretical relationships among the tests that we examine. Some of our test statistics are new to the econometrics literature, and we make an important distinction between the discrete and continuous time frameworks. We then test for duration dependence in business and stock-market cycles, and compare our results for business...

2,3,7,8-tetrachlorodibenzo-p-dioxin (tcdd) is a by-product o f t he trichlorophenol (herbicide) production and is also produced through a variety of combustion processes. it appears that tcdd is a ubiquitous chemical, particularly in industrialised countries, and the liver is the target organ of its toxicity. the prominent hepatotoxic effect of tcdd is progressive centrilobular necrosis. the is...

The Impact of Job Satisfaction and Employee Empowerment on Loyalty Amongst the Employees, Case A Private University in Kurdistan Region, Iraq Omar Falah Saleem1 Karwan Hushyar Sherwani2 1,2 Business Management Department, Tishk International University, Erbil, Correspondence: [email protected], [email protected] Received: September 25, 2022 | Revised: October 18, Published: […]

The best practice in information system development is to model the business processes that have to be supported and the database of the information system separately. This is inefficient because they are closely related. Therefore we present a framework in which it is possible to derive one from the other. To this end we introduce a special class of Petri nets, called Jackson nets, to model th...

*Correspondence: [email protected] Department of Business Administration, Faculty of Business, Karabuk University, Karabuk, Turkey Abstract In this study, we investigate the discreteness and finiteness of the negative spectrum of the differential operator L in the Hilbert space L2(H, [0, ∞)), defined as Ly = – d 2y dx2 + A(A+I) x2 y – Q(x)y, under the boundary condition y(0) = 0. In th...