Participation in Peace Support Operations (PSOs) is one of the most common military duties assigned to present-day Western soldiers. Previous research concerned with the psychological effects of these missions on the individual soldier has focused on issues of mental health and how to ensure military effectiveness. This study takes a different perspective, and examines how PSOs affect the political psychology of the peace soldier, asking: how and to what extent do the sociopolitical psychological orientations of the individual soldier change as a consequence of peace support operations? The study combines theory from clinical, social, and personality psychology to construct a framework for understanding how and why the values and the attitudes toward violence of the soldier may be affected by PSO deployments. It is argued that although combat exposure may cause changes in attitudes and values, these variables will overall remain stable across the deployment. Stability is predicted to be the norm due to the importance of certain attitudes and values to the soldierly identity, and owing to the good person-environment fit that the deployment provides for the soldiers. It is also argued that the individual’s personality traits will predict levels of change and stability. Empirically, two Swedish contingents deployed to northern Afghanistan under the auspices of NATO’s ISAF mission are analyzed. Change and stability are examined by combining statistical analyses of surveys with in-depth interviews carried out at both the pre- and post-deployment stages. As hypothesized, the study finds that both values and attitudes exhibit high levels of stability across the mission. Contrary to expectations the soldiers’ experiences of combat exposure had little to no effect on attitudes and values. Combat exposure was, however, limited during the deployments studied. Finally, the individual’s personality traits are identified as being relatively potent factors for inducing change and stability. By demonstrating that low-exposure PSOs have only minor effects on the sociopolitical psychological orientations of soldiers, the study advances knowledge of the political psychology of the peace soldier and provides additional contributions to the fields of value and personality psychology. Among other things, the study demonstrates the stability of values in a very challenging environment, and how personality traits affect change and stability in values.

The accounting profession continually has problems with hiring and keeping qualified staff; and many accounting scandals have shown a lack of ethical behavior on the part of Certified Public Accountants (CPA). This suggest a misfit between those in the profession and the ethics that the profession strives towards. Research has shown that the congruity of personal values with organizational values, person-organization fit (P-O fit), is an important factor in the hiring, socialization, and retention of employees. In addition, ethical behavior has been found related to P-O fit. Accounting educators have been called upon to address these problems by inculcating accounting students with the values of the accounting profession. This research firstly reports on the results of a comparison of the personal values of upper level accounting students in Georgia with the personal values of CPA leaders in Georgia. Personal value priorities were measured with the Rokeach Value Survey (RVS). The findings indicated that these samples of Georgia CPA leaders (N = 193) and accounting students (N = 516) significantly differed in the priority given to 24 of the 36 (66.7%) RVS values. This result suggests a lack of P-O fit between accounting students and the accounting profession. Secondly, this research reports on the effectiveness of two education interventions designed to improve the P-O fit of accounting students: a Curriculum Modification Intervention and a Value Self-Confrontation (VSC) Intervention. These education interventions were delivered online as part of the content of two distance learning classes on accounting ethics. The curriculum of both classes were augmented with content aimed at increasing the priority given to the value of courageous. The two classes were designated as either Group 1 or Group 2. Group 1 received only the Curriculum Modification Intervention. Group 2 received both the Curriculum Modification Intervention and the VSC Intervention, which was targeted at increasing the priority given to the four values of capable, courageous. honest, and responsible—values related to the Code of Professional Conduct and Bylaws (2012) of the American Institute of Certified Public Accountants. The results indicated that Group 1, from the beginning to the end of class (short-term value change), did not increase the priority given to courageous. Thus, the stand-alone Curriculum Modification Intervention did not result in the desired effect. Group 2, on the other hand, did increase the short-term priority given to all four of the targeted values. Moreover, Group 2 increased the long-term priority given to two of the four targeted values: capable and courageous. The higher priority given to these values at the end of class persisted for 15-16 weeks. The effect sizes indicated practical significance. These results suggest that the VSC Intervention was effective at inducing both short-term and long-term value change in the priority given to values of importance to the ethics of the accounting profession. These findings have implications for CPA firms, specifically with regard to hiring ethically “fitting” staff and fostering an ethical culture in accounting firms. The results of this research also provide input that may be helpful in improving accounting pedagogy, especially the pedagogy of accounting ethics education and distance education. Key words: person-organization fit, P-O fit, CPA firm turnover, personal values, value change, value self-confrontation, VSC, Rokeach Value Survey, RVS, Certified Public Accountant, CPA, ethics education, accounting students, online education, distance learning. / Business Management / D.B.L.

Produced water is the largest waste product by volume in the oil industry and its treatment in onshore or offshore fields poses bigger and different challenges than what water engineers are used to encounter. Process to achieve reuse quality of this water is very expensive with many technical hurdles to overcome making the optimization of the treatment steps necessary. Electrocoagulation (EC) generates coagulants in-situ responsible for destabilizing oil droplets, suspended particles, and common pollutant in produced water. Furthermore, EC is a very efficient technology compared with traditional primary treatments used in the oil & gas industry and has several advantages such as: no hazardous chemical handling (which diminishes the risk of accident and logistic costs), high efficiency potential concerning boron removal, potential small footprint and less sludge generation. In this research, the treatment of produced water using EC was investigated in a practical manner for the oilfield to aim for a cleaner effluent for further processing and help to achieve a reuse quality. For this, an EC cell was designed using different parameters normally used in the literature to fit this scenario. After preliminary tests, the treatment time was set to 3 seconds. Response surface method (RSM) was employed to optimize the operating conditions for TOC removal on a broad quality of synthetic produced water while varying: salinity, initial oil concentration and initial pH. TOC was chosen to be the main response because of its importance in legislation and sensibility on the method. Furthermore, turbidity removal, change of pH value after EC in water with lack of buffer capacity, aluminum concentration and preliminary tests involving boron removal and influence of hydrogen carbonate were also studied. Real produced water was treated with EC to assess the optimum conditions obtained by the RSM showing the results were closely related. Finally, an estimation of volume required and operating cost for EC in the different types of produced water was made to assess how realistic it is for onshore and offshore applications.:ERKLÄRUNG DES PROMOVENDEN I ACKNOLEDGEMENT III ABSTRACT V TABLE OF CONTENT VII LIST OF FIGURES IX LIST OF TABLES X LIST OF EQUATIONS XII ABBREVIATIONS XIV 1. INTRODUCTION 1 2. PRODUCED WATER 6 2.1 Characterization of Oilfield Produced Water 6 2.2 Produced Water Management 10 2.2.1 Discharge and Regulations 10 2.2.2 Efforts on Reuse 11 2.2.3 Cost 14 3. PRODUCED WATER TREATMENT 17 3.1 Most Common Primary Treatment 17 3.1.1 Hydrocyclones 17 3.1.2 Flotation unit 18 3.2 Further Water Treatment Technologies 19 3.2.1 Membrane Process 19 3.2.1.1 Microfiltration 19 3.2.1.2 Ultrafiltration 21 3.2.1.3 Nanofiltration 23 3.2.1.4 Reverse Osmosis 24 3.2.1.5 Forward osmosis 24 3.2.2 Electrodialysis 25 3.2.3 Biological treatment 28 3.2.3.1 Aerobic and anaerobic process 28 3.2.3.2 Combining membrane and bio-reactor 29 3.2.4 Oxidative process 30 3.2.4.1 Oxidation process 30 3.2.4.2 Anodic oxidation 32 3.2.5 Thermal technology 34 3.2.5.1 Evaporation 34 3.2.5.2 Eutectic freeze crystallization 35 3.2.6 Adsorption and ion-exchange 36 3.3 Electrocoagulation 39 3.3.1 Colloidal Stability Theory 39 3.3.2 Theory of Electrocoagulation 40 3.3.3 Mechanism of Abatement of Impurities 44 3.3.4 Operational parameters and efficiency 49 4. MATERIALS AND METHODS 51 4.1 Analytical Techniques and Synthetic Solutions 51 4.1.1 Analytical Techniques 51 4.1.2 Synthetic Produced Water 51 4.2 Design of Experiment and Models 54 4.3 Experimental Protocol for EC 56 4 .4 Development of the new Electrocoagulation cell 57 4.5 Real Produced water 58 5. RESULTS AND DISCUSSION 59 5.1 Designing EC Cell Process 59 5.1.1 Computational Fluid Dynamics for EC manufacturing 59 5.2 Preliminary Experiments 61 5.2.1 TOC Removal and Residence Time Determination 61 5.2.2 Aluminum Concentration 64 5.3 Models Quality and Range of Validity 66 5.3.1 TOC Removal 66 5.3.2 Turbidity Removal 69 5.3.3 Final pH value 71 5.3.4 Ionic Strength and Interpolation for Different Salinities 73 5.3.5 Partial Conclusions 76 5.4 Evolution of the Final pH Value 78 5.5 Operation Region for Effective Treatment of Produced Water with EC 80 5.5.1 Produced Water with Low Salinity 80 Organic Compounds Removal 80 Turbidity Removal 83 5.5.2 Produced Water with Medium Salinity 84 Organic Compounds Removal 84 Turbidity Removal 86 5.5.3 Produced Water with High Salinity 87 Organic Compounds Removal 87 5.6 Influence of Hydrogen Carbonate 90 5.7 Real Produced water 91 5.8 Boron Removal 93 5.9 Estimation of the Size for EC in Full scale 94 5.10 Produced Water with Very Low Salinity and EC 95 5.11 Estimation of Operation Cost 96 6. CONCLUSION AND RECOMMENDATIONS 98 6.1 Conclusion 98 6.2 Recommendations for Future Work 101 Scale up on EC for upstream 101 Further processing and reuse 101 Online optimization for EC 101 Recommendations for any research related to upstream produced water 101 BIBLIOGRAPHY 102 APPENDIX A 117 APPENDIX B 120

Die 21ste eeuse postmodeme samelewing word gekenmerk deur dinamiese veranderinge op aile gebiede wat die kwaliteit van die gesinslewe en opvoedingsbegeleiding binne gesinne bepaaL Hierdie studie poog om aan die hand van 'n omvangryke literatuurstudie en kwalitatiewe ondersoek, die aard, omvang en invloed van sodanige samelewingsverskynsels op verhoudingstigting- en onderhouding en die kwaliteit van opvoedingsbegeleiding in eietydse stadsgesinne te bepaal. Bevindinge toon dat sommige gesinne, as gevolg van hierdie veranderinge, uiters kwesbaar is, dat verhoudinge ontaard en opvoedingsbegeleiding ontoereikend voltrek. Die verval van norme en waardes is veral verswarend vir opvoeding en volwassewordingshulp. Ouers en kinders moet onder verswarende omstandighede die verantwoordelikheid opneem om harmoniese en Iiefdevolle verhoudinge in die gesin te stig en te onderhou. Ondersteunings- en begeleidingsprogramme vir ouers en kinders om toereikende opvoedingsbegeleiding en selfaktualisering te verseker, word aanbeveel. Hierdie programme moet op die mikro-, meso- en makrovlak van die samelewing geloods word. / The post-modem society of the 21st century is characterized by dynamic changes which determine the quality of family life and educational support in families. This study aims to determine, by means of a comprehensive literature study and qualitative investigation, the nature, extent and influence of social phenomena on the constitution and maintenance of relationships as well as the quality of educational support in contemporary urban families. Findings show that some families are vulnerable, that relationships deteriorate and that educational support is inadequate as a result of these changes. The decline of norms and values is an aggravating factor in education and adolescence support. Parents and children have to take responsibility to establish harmonious and loving relationships in the family. Support and guidance programmes are recommended for parents and children to ensure adequate educational support and self-actualization. These programmes must be launched on the micro, meso and macro level of society. / Educational studies / M. Ed. (Sosio-Opvoedkunde)

Die 21ste eeuse postmodeme samelewing word gekenmerk deur dinamiese veranderinge op aile gebiede wat die kwaliteit van die gesinslewe en opvoedingsbegeleiding binne gesinne bepaaL Hierdie studie poog om aan die hand van 'n omvangryke literatuurstudie en kwalitatiewe ondersoek, die aard, omvang en invloed van sodanige samelewingsverskynsels op verhoudingstigting- en onderhouding en die kwaliteit van opvoedingsbegeleiding in eietydse stadsgesinne te bepaal. Bevindinge toon dat sommige gesinne, as gevolg van hierdie veranderinge, uiters kwesbaar is, dat verhoudinge ontaard en opvoedingsbegeleiding ontoereikend voltrek. Die verval van norme en waardes is veral verswarend vir opvoeding en volwassewordingshulp. Ouers en kinders moet onder verswarende omstandighede die verantwoordelikheid opneem om harmoniese en Iiefdevolle verhoudinge in die gesin te stig en te onderhou. Ondersteunings- en begeleidingsprogramme vir ouers en kinders om toereikende opvoedingsbegeleiding en selfaktualisering te verseker, word aanbeveel. Hierdie programme moet op die mikro-, meso- en makrovlak van die samelewing geloods word. / The post-modem society of the 21st century is characterized by dynamic changes which determine the quality of family life and educational support in families. This study aims to determine, by means of a comprehensive literature study and qualitative investigation, the nature, extent and influence of social phenomena on the constitution and maintenance of relationships as well as the quality of educational support in contemporary urban families. Findings show that some families are vulnerable, that relationships deteriorate and that educational support is inadequate as a result of these changes. The decline of norms and values is an aggravating factor in education and adolescence support. Parents and children have to take responsibility to establish harmonious and loving relationships in the family. Support and guidance programmes are recommended for parents and children to ensure adequate educational support and self-actualization. These programmes must be launched on the micro, meso and macro level of society. / Educational studies / M. Ed. (Sosio-Opvoedkunde)