Milica Arsić

The effect of TQM on employee loyalty in transition economy, Serbia

The concept of total quality management (TQM) emphasises continuous improvement which requires the participation of every individual in the company. Although much has already been said about people being the primary resource in an organisation practicing TQM, this area has been neglected by companies implementing TQM. The aim of this study was to determine critical factors of TQM practice that would positively impact employee satisfaction. Data for this study were obtained from three manufacturing companies, which have accepted TQM philosophy. Using structural equation modeling, the relationships between structural determinants of job satisfaction and employee loyalty were investigated. The results suggest that five, out of six, determinants are positively related to job satisfaction.

Evaluation of Variations in Ground-Level Ozone (O3) Concentrations

ABSTRACT This article presents the results of measuring the concentrations of ground-level ozone (O3) in ambient air and meteorological parameters (atmospheric pressure, temperature, wind speed, and relative humidity during the year 2008. The measurements were performed at measuring station located near Campo Grande, away from local sources of O3. Fourier analysis, Principal Component Analysis (PCA) and Multiple Linear Regression (MLR) were used as tools for mathematical analysis of the indicated occurrence. The results of Fourier analysis indicate that not only the daily cycles but also the weekly and monthly cycles are visible in all periods as well as the 12-h cycles. The statistical analysis of the obtained data, based on PCA have shown that approximately 60% of the variance in the measured values can be described with two factors. The attempt of O3 distribution modeling, using MLRA, resulted in a linear model whose coefficient of determination was equal to R2 = 0.98. The results of the study indicate that all these methods are useful for understanding the impact of meteorological parameters on variations of ozone concentration over time.