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Sulaimon Olanrewaju Adebiyi, Emmanuel Olateju Oyatoye and Joseph Nnamdi Mojekwu

. R. (1997). Markov Chains . Cambridge: Cambridge University Press. Oyatoye, E. O.; Adebiyi, S. O.; Amole. B. B. (2015). Modeling switching behaviour of Nigeria global system for mobile communication multiple SIMs subscribers’ using Markov chain analysis. The IUP Journal of Operations Management 14(1): 7–31. Reinartz, W. J.; Kumar, V. (2003). The impact of customer relationship characteristics on profitable lifetime duration. Journal of Marketing 67(1): 77–99. SAS Institute. (2000). Best Practice in Churn Prediction . A SAS Institute White

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Marianna Greta and Mieczysław Pakosz

. Kyrylych Y. (2015), Macroeconomic Strategy of Ukrainian Behaviour in: Contemporary trends in international relations: politics, economics, law: Collection of the materials of the IV Annual International Scientific-Practical Conference, Lviv. Razumkov Centre Report (2015), Ukraine 2014: A Year of Hardship, Kyiv. National Statistics Service of Ukraine: ukrstat.gov.ua . Sachs J. D. (2005), The End of Poverty. How We Can Make It Happen in Our Lifetime , Wydawnictwo Naukowe PWN SA, Warsaw. Szczerbaniuk O. (2013), Modernisation of national

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Jiří Balcar, Lenka Filipová and Zuzana Machová

a Synthetic Lifetime. In Elisabetta Ruspini and Angela Dale. The Gender Dimension of Social Change (pp. 111-131). Bristol: The Policy Press. JUHN, C., MURPHY, K. M., PIRCE, B. (1993). Wage Inequality and the Rise in Returns to Skill. Journal of Political Economy , 101(3), pp. 410-442. JURAJDA, Š. (2005). Gender segregation and wage gap: An east-west comparison. Journal of the European Economic Association , 3(2-3), pp. 598-607. JURAJDA, Š. (2003). Gender wage gap and segregation in enterprises and the public

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Ján Kortiš, Ľuboš Daniel, Milan Škarupa and Maroš Ďuratný

Abstract

The experimental modal analysis is often used to validate the accuracy of dynamic numerical models. It is also a good tool to obtain valuable information about current condition of the structures that could help to determine residual lifetime. The quality of modal testing results is highly dependent on the proper estimation of the natural frequencies from the frequency response function. This article presents the experimental modal test of the laboratory steel structure in which the natural frequencies and mode shapes are determined.

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Oto Makýš, Peter Krušinský, Renáta Korenková and Dominika Šrobárová

Abstract

The paper deals with the lifetime of wooden poles, situated in the archaeological open-air museum Liptovská Mara - Havránok, which were erected outdoors about 12 years ago. It is aimed at diagnosing their condition using sonic tomography. The poles differ from each other in the location, anchorage, and positioning in terms of the terrain slope. Investigation was focused on the free-standing poles (quasi sacrifice poles) and the poles that are part of the fortification (gates and walls). Measurements were carried out using the device Fakopp ArborSonic 3D Sonic Tomograph that has 18 sensors. It measures the sonic response (sound velocity) in a tree stem. Sound wave velocity within sound wood depends on its species, moisture content, and the direction of measurement. Measurements brought remarkable results.

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Josef Vičan, Jozef Gocál, Jaroslav Odrobiňák and Peter Koteš

Abstract

The article describes general principles and basis of evaluation of existing railway bridges based on the concept of load-carrying capacity determination. Compared to the design of a new bridge, the modified reliability level for existing bridges evaluation should be considered due to implementation of the additional data related to bridge condition and behaviour obtained from regular inspections. Based on those data respecting the bridge remaining lifetime, a modification of partial safety factors for actions and materials could be respected in the bridge evaluation process. A great attention is also paid to the specific problems of determination of load-caring capacity of steel railway bridges in service. Recommendation for global analysis and methodology for existing steel bridge superstructure load-carrying capacity determination are described too.

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Josef Vičan, Jozef Jošt and Jozef Gocál

.- GOCÁL, J.- MELIŠ, B.: Fatigue assessment of existing bridge members. In Communications -Scientific letters of University of Žilina, vol. 9, No. 3, 2007, pp. 11-15, ISSN 1335-4205. [4] VIČAN, J. - GOCÁL, J. - MELIŠ, B. - KOTEŠ, P. - KOTULA, P.: Real behaviour and Remaining Lifetime of Bridge Structures, In Communications - Scientific Letters of the University of Zilina, vol. 10, No. 2, 2008, pp. 30-37, ISSN 1335-4205.

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Sulaimon Olanrewaju Adebiyi, Emmanuel Olateju Oyatoye and Owolabi Lateef Kuye

, Management Science , Vol. 36, No. 3, pp. 269–273. Hennig-Thurau, T., Hansen, U. (2000), Relationship marketing: Gaining competitive advantage through customer satisfaction and customer retention , Germany, Springer. Hurley, T. (2004), Managing Customer Retention in the Health and Fitness Industry: A Case of Neglect, Irish Marketing Review , Vol. 17, No. 1/2, pp. 14–34. Jain, D., Singh, S. S. (2002), Customer Lifetime Value Research in Marketing: A Review and Future Directions, Journal of Interactive Marketing , Vol. 16, No. 2, pp. 34–46. Joseph

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Michaela Jánská and Petra Olšová

Science, 21(2), 256–76. Shimp, T.A, Andrews, J.C. (2013). Advertising Promotion and Other Aspects of Integrated Marketing Communications. Mason: South-Western. Smith, P., et al. (1999). Strategic Marketing Communications: New Ways to Build and Integrate Communications. London: Kogan Page Limited. Spilková, J. (2012). Geografie maloobchodu a spotřeby: věda o nakupování. Praha: Karolinum. Varey, R. J. (2002). Marketing communications: Principles a practice. London: Routledge. Venkatesan, R., Kumar, V. (2004). A Customer Lifetime Value

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Ján Jerga and Ľudovít Krajči

carbonation. Proceedings: 7th International Conference on Non-Destructive Testing and Experimental Stress Analysis of Concrete Structures, Košice, 1998, 135-140. [21] JANOTKA, I. - KRAJČI, Ľ.: Sulphate resistance and passivation ability of the mortar made from pozzolan cement with zeolite. Journal of Thermal Analysis and Calorimetry 94 (2008), 7-14. [22] JENSEN, A. D. - CHATTERJI, S.: RILEM TC 122-MLC, State of the art report on micro-cracking and lifetime of concrete - Part 1. Materials and Structures, 29 (1996), 3-8. [23