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1.
Production control of a polymerization plant based on production performance indicators
Dejan Gradišar, Sebastjan Zorzut, Vladimir Jovan, 2008, izvirni znanstveni članek

Opis: The specifics of process manufacturing have a great influence on production management. The focus of process-production control is to maintain stable and cost-effective production within given constraints. The synthesis of production-control structures is thus recognized as one of the most important design problems in process-production management. This article proposes a closed-loop control structure with the utilization of production-performance indicators (pPIs) as a possible solution to this problem. Suggested concept takes into account also economic issues of production. pPIs represent the translation of operating objectives, such as the minimization of production costs, to a reduced set of control variables that can then be used in a feedback control. The idea of production-feedback control using production pPIs as controlled variables was implemented on a procedural model of a production process for a polymerization plant. Preliminary results demonstrate the usefulness of the proposed methodology. At the implementation stage we must be aware that appropriate IT system has to be available which ensures needed online production data.
Ključne besede: production management, production control, production performance indicators, model-based control
Objavljeno: 10.01.2018; Ogledov: 23; Prenosov: 0
.pdf Celotno besedilo (963,78 KB)

2.
Predictors of users' satisfaction with E-payment system
Adeyinka Tella, Abdulmumin Isah, 2015, izvirni znanstveni članek

Opis: Background and Purpose: Many organisations are using the e-payment system; however, its effectiveness has not been determined particularly in the Nigeria context. The University of Ilorin as educational organisation started using e-payment system in 2010 and up till now there has been limited or no study conducted to examine whether or not workers are satisfied with the new payment system together with other related ones they are familiar with. It is in the light of this that this study examined users’ satisfaction with the e-payment system at the University of Ilorin, Nigeria. Design/Methodology/Approach: A sample of 260 academic and non-academic staff was taken from six out 12 faculties that made up the university. Using a survey research approach data was collected with a modified questionnaire. Five research questions were developed to guide the study. Results: The results revealed that, respondents (93.5%) were adequately satisfied, satisfied and moderately satisfied, while, only (6.5%) of the respondents were less satisfied and dissatisfied. Perceived speed was identified as the characteristics users mostly satisfied with, followed by system security, traceability, and convenience. Moreover, there is significant correlation among the entire e-payment characteristics/factors (perceived speed, security, anonymity, traceability, perceived ease of payment, and convenience); and that all the six factors jointly predict users’ satisfaction with the e-payment system. In order of magnitude of the prediction/contribution to e-payment, users’ satisfaction, perceived speed made the most significant prediction/contribution. Conclusion: Based on the findings, the study concluded a considerable percentage of the respondents (93.5%) are satisfied with the e-payment system at the University of Ilorin, Nigeria. In lieu of this therefore, there is need to improve the e-payment system so that all and sundry could be satisfied.
Ključne besede: users' satisfaction, e-commerce, electronic payment system (EPS), salary, University of Ilorin
Objavljeno: 10.01.2018; Ogledov: 21; Prenosov: 1
.pdf Celotno besedilo (548,21 KB)

3.
Practical applications of quality tools in Polish manufacturing companies
Beata Starzyńska, 2014, izvirni znanstveni članek

Opis: Background and Purpose: Modern companies have found themselves in a situation where the ability for the dynamic adaptation to the changing market conditions is a key competitive advantage. Therefore they are continually searching for intensive ways of improvement of their processes and products. The basis for the implementation of such strategy is the efficient use of information resources. In quality management, appropriate tools and techniques equip decision-makers with information, necessary to take: correction, corrective, preventive, and finally – improvement actions. Design/Methodology/Approach: The paper presents the results of the survey, conducted on a representative sample of manufacturing companies in Great Poland (region of Poland). The main goal of the survey was to ascertain, from the quality assurance perspective, what kind of problems, at which stage of production process are the most frequent and what kind of quality tools and techniques are used by practitioners for their solutions. Furthermore, the respondents evaluated the importance of appearing problems as well as the effectiveness of used tools. Results: The results of the survey show that quality tools are most frequently implemented at the manufacturing phase of the production process, then at the production set-up stage and measurement phase. On the manufacturing phase example it was shown, which of the tools included in the survey, are effectively used for problem solutions, concerning the process inputs, process performance and management of the processes. Conclusion: The obtained results allow contradicting the thesis spreading quality tools universality. In the context of production process stages, some of them are oriented towards selected phases and, such as, may be effectively used by practitioners.
Objavljeno: 10.01.2018; Ogledov: 19; Prenosov: 0
.pdf Celotno besedilo (700,50 KB)

4.
Perceived factors and obstacles to cognitive schema change during economic crisis
Ana Arzenšek, 2011, izvirni znanstveni članek

Opis: The main objective is to present the perceived factors in cognitive schema change as experienced by participants from two Slovenian sectors and to compare them with factors from schema change theory in order to evaluate specific circumstances and obstacles to effective cognitive schema change. 31 interviews with participants from six companies were conducted twice during the 2008 economic crisis. The prevalent perceived antecedents of schema change lie within an organisation and in the business environment. Stimulating factors are also economic and financial crises and personal characteristics. The prevalent obstacles to schema change, as perceived by participants, are stability of current cognitive schemas, personal characteristics of management, and rigidity.
Ključne besede: cognitive schema, change, factors, obstacles, economic crisis
Objavljeno: 10.01.2018; Ogledov: 20; Prenosov: 0
.pdf Celotno besedilo (544,86 KB)

5.
Outline of implemented eco-innovation activities
Jana Hojnik, Mitja Ruzzier, Aleš Lipnik, 2014, izvirni znanstveni članek

Opis: Background and Purpose: Providing a win-win situation for enterprises and the environment is raising the importance of eco-innovation. This article sheds light on the eco-innovation activities implemented within the clusters of the South Eastern European region (hereafter the SEE region). The main objective of this paper is to provide an outline of the situation pertaining to the implementation of eco-innovation activities in analyzed clusters. Methodology: Empirical evidence is provided through the performance of survey research with a sample of 52 clusters, encompassing 11 countries of the SEE region. The basic research method used in this research was a questionnaire developed for cluster organizations, with which we gathered the data and afterwards conducted descriptive statistics. Results: The findings demonstrate that the majority of analyzed clusters implement eco-innovation activities. The results indicate that 40 clusters out of 52 in all have set objectives with regard to eco-innovation support in their national or regional programs, followed by 35 clusters, which include objectives related to eco-innovation in their cluster strategies, and lastly, only 15 clusters are primarily focused on eco-innovation. Hence, our study depicting the current situation regarding the implementation of eco-innovation activities in analyzed clusters and clusters' orientation towards eco-innovation leads to us the discussion of why such differences in clusters occur. Conclusion: The huge differences related to the implementation of eco-innovation activities in clusters of the SEE region, can also reflect the level of the national/regional development in terms of economic indicators such as GDP and, at the same time, offer room for a lot of improvement, and an exchange of best practice.
Ključne besede: eco-innovation, clusters, SEE region
Objavljeno: 10.01.2018; Ogledov: 19; Prenosov: 0
.pdf Celotno besedilo (413,80 KB)

6.
Organizational mental map and conative competences
Darko Kovač, Andrej Bertoncelj, 2008, izvirni znanstveni članek

Opis: Employees with their knowledge, skills, behavior and personal traits impact the organizational learning. The concept of organizational mental map and conative competences, as inborn underlying characteristic that is influenced by employees being involved as well as endogenous and exogenous factors, is presented. Three Slovene small to mid-sized companies were studied in respect to the individual factors, especially conative competences, of their employees. The study suggests that conative side of mind and thus conative competences can actually influence the organizational learning. What matters in contemporary management practice is how hidden potentials are set free and how they intrinsically motivate employees according to their personal differences in capabilities. As conative competences are inborn and can not be learned but only encouraged, contrary to cognitive competences, it is important to better understand employees' personal traits.
Ključne besede: organizational learning, SME, conation, conatice competences, organizational mental map
Objavljeno: 10.01.2018; Ogledov: 21; Prenosov: 0
.pdf Celotno besedilo (2,00 MB)

7.
Organizational and managerial challenges of reforming Slovenian public agencies
Polonca Kovač, 2014, izvirni znanstveni članek

Opis: Introduction: Agencies are among the key contemporary public organizations, prospering within reforms carried out worldwide to increase professionalism and rationalism in public administration (PA). Hence, countries have been establishing agencies and delegating them public tasks in order to achieve expertise-based instead of politically-driven and thus more efficient public policies. In such context, the present article addresses the most important strategic documents related to public administration reform (PAR) in Slovenia, analyzing their goals in terms of agencification and the main implementation results and gaps. Research Design: The research is dedicated to exploring the governmental approach to agencification as a key aspect of PAR. It analyzes (1) the main PAR strategic documents on public agencies in Slovenia since the mid-90s, and (2) the perceived implementation of structural and managerial autonomy as the declared goal of agencification. Combined research methods are applied, including descriptive analysis, regional comparisons, structural interviews among representatives of public agencies and their parent ministries, and selected statistical data analysis. Results: As proven by different research methods, the hypothesis whereby agencification goals in Slovenia are largely achieved as part of PAR documents in terms of autonomous organizational structure was confirmed. A more elaborated agencification in PAR documents relates to higher implementation of autonomy. Conclusion: Nevertheless, the professionalism of Slovenian agencies is still an on-going process, particularly as regards the efficiency implementation gap. As for the future, a more consistent PAR incorporating cross-sectoral policy on agencies is required to pursue the development of a democratic and efficient PA.
Ključne besede: public administration reform, agencies, autonomy, organization, management, Slovenia
Objavljeno: 10.01.2018; Ogledov: 8; Prenosov: 0
.pdf Celotno besedilo (459,56 KB)

8.
Organizational ambidexterity, exploration, exploitation and firms innovation performance
Mladenka Popadić, Matej Černe, Ines Milohnić, 2015, izvirni znanstveni članek

Opis: Background and Purpose: The construct of organizational ambidexterity (OA) has attracted the growing attention in management research. Previous empirical research has investigated the effect of organisational ambidexterity on performance from various perspectives. This study aims to resolve the contradictory previous research findings on the relationship between organisational ambidexterity and innovation performance. We unpack this construct with combined dimension of ambidexterity, which relates to a combination of high levels of both exploration and exploitation (introduction of products or services that were new to the market and new to the firm). Methodology: We frame our ambidexterity hypothesis in terms of firm’s innovation orientation. The hypothesis is tested by using Community Innovation Survey (CIS) 2006 micro data at the organizational level in twelve countries. To operationalize an ambidexterity and firms innovation outcome, we used self-reported measures of innovativeness. Results: To test our hypothesis, we developed a set of models and tested them with multiple hierarchical linear regression analyses. The results indicate that exploration and exploitation are positively related to firm’s innovation performances which supports our assumption that both are complementary. Furthermore, we find that above and over their independent effects, through combining them into a single construct of organizational ambidexterity, this variable remains negatively and significantly related to innovation performance. Conclusion: These results provides the managers with an idea of when managing trade-offs between exploration and exploitation would be more favorable versus detrimental. For firms with lower organizational ambidexterity, the relationship between exploration-exploitation and the firm’s innovation performance is a more positive one.
Ključne besede: enterprises, entrepreneurs, entrepreneurship, organizational ambidexterity, exploration, exploitation, innovation performance
Objavljeno: 10.01.2018; Ogledov: 6; Prenosov: 0
.pdf Celotno besedilo (413,65 KB)

9.
Organization in finance prepared by stohastic differential equations with additive and nonlinear models and continuous optimization
Pakize Taylan, Gerhard-Wilhelm Weber, 2008, izvirni znanstveni članek

Opis: A central element in organization of financal means by a person, a company or societal group consists in the constitution, analysis and optimization of portfolios. This requests the time-depending modeling of processes. Likewise many processes in nature, technology and economy, financial processes suffer from stochastic fluctuations. Therefore, we consider stochastic differential equations (Kloeden, Platen and Schurz, 1994) since in reality, especially, in the financial sector, many processes are affected with noise. As a drawback, these equations are hard to represent by a computer and hard to resolve. In our paper, we express them in simplified manner of approximation by both a discretization and additive models based on splines. Our parameter estimation refers to the linearly involved spline coefficients as prepared in (Taylan and Weber, 2007) and the partially nonlinearly involved probabilistic parameters. We construct a penalized residual sum of square for this model and face occuring nonlinearities by Gauss-Newton's and Levenberg-Marquardt's method on determining the iteration step. We also investigate when the related minimization program can be written as a Tikhonov regularization problem (sometimes called ridge regression), and we treat it using continuous optimization techniques. In particular, we prepare access to the elegant framework of conic quadratic programming. These convex optimation problems are very well-structured, herewith resembling linear programs and, hence, permitting the use of interior point methods (Nesterov and Nemirovskii, 1993).
Ključne besede: stochastic differential equations, regression, statistical learning, parameter estimation, splines, Gauss-Newton method, Levenberg-Marquardt's method, smoothing, stability, penalty methods, Tikhonov regularization, continuous optimization, conic quadratic programming
Objavljeno: 10.01.2018; Ogledov: 8; Prenosov: 0
.pdf Celotno besedilo (364,34 KB)

10.
Organisational factors of rapid growth of Slovenian dynamic enterprises
Viljem Pšeničny, Riko Novak, 2013, izvirni znanstveni članek

Opis: The authors provide key findings on the internal and external environmental factors of growth that affect the rapid growth of dynamic enterprises in relation to individual key organisational factors or functions. The key organisational relationships in a growing enterprise are upgraded with previous research findings and identified key factors of rapid growth through qualitative and quantitative analysis based on the analysis of 4,511 dynamic Slovenian enterprises exhibiting growth potential. More than 250 descriptive attributes of a sample of firms from 2011 were also used for further qualitative analysis and verification of key growth factors. On the basis of the sample (the study was conducted with 131 Slovenian dynamic enterprises), the authors verify whether these factors are the same as the factors that were studied in previous researches. They also provide empirical findings on rapid growth factors in relation to individual organisational functions: administration - management - implementation (entrepreneur - manager - employees). Through factor analysis they look for the correlation strength between individual variables (attributes) that best describe each factor of rapid growth and that relate to the aforementioned organisational functions in dynamic enterprises. The research findings on rapid growth factors offer companies the opportunity to consider these factors during the planning and implementation phases of their business, to choose appropriate instruments for the transition from a small fast growing firm to a professionally managed growing company, to stimulate growth and to choose an appropriate growth strategy and organisational factors in order to remain, or become, dynamic enterprises that can further contribute to the preservation, growth and development of the Slovenian economy.
Ključne besede: entrepreneurship, dinamic enterprises, environment, organisational factors
Objavljeno: 10.01.2018; Ogledov: 10; Prenosov: 0
.pdf Celotno besedilo (203,30 KB)

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