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17. Effects of ideological and relational psychological contract breach and fulfilment on volunteers’ work effort.

Author

Vantilborgh, T., Bidee, J., Pepermans, R., Willems, J., Huybrechts, G., and Jegers, M.

Subjects
PSYCHOLOGICAL contracts (Employment), RESPONSE surfaces (Statistics), VOLUNTEERS, BREACH of contract, EMPLOYEES
Abstract

The ideological psychological contract (PC) describes perceived obligations related to an organization’s mission, values, and principles. The lack of research regarding ideological PC breach and fulfilment is surprising, as theory states that this PC type has distinct effects on outcomes. We address this gap in the literature and investigate how ideological PC breach and fulfilment influence volunteers’ work effort and whether this effect differs from relational PC breach and fulfilment. We measured promised and delivered ideological and relational inducements on two separate occasions and used polynomial regressions and response surface analyses to test our hypotheses. In the case of ideological PC fulfilment, results indicated that work effort increases in situations of mutual-low and mutual-high obligations. In the case of ideological PC breach, work effort increases in situations of under- and overfulfilment. We conclude that underfulfilment of ideological PCs differed from relational PCs, as work effort decreases in the case of the latter. Hence, our findings demonstrate the importance of considering the unique nature of ideological obligations in the PC literature. [ABSTRACT FROM PUBLISHER]

Published
2014
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42. THE CHLORINE PHOTOSENSITIZED OXIDATION OF HYDROCARBONS AT LOW TEMPERATURES.

Author

BRUSSELS UNIV (BELGIUM), Martens,G., Huybrechts,G., Meyers,L., Olbregts,J., BRUSSELS UNIV (BELGIUM), Martens,G., Huybrechts,G., Meyers,L., and Olbregts,J.

Abstract

The oxygen effect on the photochlorination of ethane was studied at 310 K. Due to the extremely long chain of the uninhibited reaction the effect is quite high and can be explained by the reaction of an ethyl chain carrier with the oxygen molecule. The rate constant of this step C2H5 + O2 (yields) C2H5O2 was measured. The rate dependence on concentrations and light intensity are discussed. The chlorine photosensitized oxidation of trichloroethylene and the competition chlorination-oxidation were studied. In the present stage only overall rate equations can be given which can be explained by different mechanisms. In mixtures of chlorine, oxygen and trichloroethylene an after effect appears when the actinic light is cut after a small illumination time. This dark reaction seems to consume only chlorine and trichloroethylene but the explanation of the phenomenon requires more experimental data. These will be obtained by mass-spectrometric measurements performed at the present time. (Author)

Published
1964

43. Software Note OPTKIN - Mechanistic Modeling by Kinetic and Thermodynamic Parameter Optimization

Author

Huybrechts, G., Guy Van Assche, and Physical Chemistry and Polymer Science

Subjects
Optimization, reaction Mechanisms, Chemistry (miscellaneous), chemical kinetics, Software, Simulation
Abstract

A program package OPTKIN is presented for the user-friendly development and analysis of complex reaction mechanisms on personal computers. OPTKIN can (1) simulate the evolution with time of the composition of a reaction mixture, (2) optimize rate parameters and/or thermodynamic properties, (3) search for redundant reaction steps, and (4) perform sensitivity analyses.

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