The aim of this study was to evaluate the "beautification of schools" programme as an environmental management tool with a view to facilitating the improvement thereof wherever necessary. An in-depth literature review on theoretical perspectives in environmental management indicated that these partially addressed the problem of the study, namely, to comply with some principles of environmental management system, but not to implement them fully. The theory developed from the literature review facilitated the development of an empirical research. Qualitative research was conducted to evaluate the "beautification of schools" programme as an environmental management tool with a view to facilitating the improvement thereof wherever necessary. It emerged from the findings of the research, that some schools do not have environmental policies. Those schools with environmental policies lack environmental policy objectives. They do not have time frames according to which environmental programmes of action need to be reviewed. Although some schools have used the environmental management strategies in the "beautification of schools" campaign as a management tool, they have never taken proactive measures to better manage the environment of their schools. / Thesis (M. Environmental Management)--North-West University, Potchefstroom Campus, 2005.

Abstract: The aim of the study was to evaluate the indoor air quality (IAQ) of a semi-airtight (the building only utilises mechanical means to ventilate the occupied spaces however an airtight seal is not established as a result of infiltration due to building design) office building that is situated in central Johannesburg that exclusively uses a heating, ventilation and air-conditioning (HVAC) system for ventilation. This implies a system that only utilises mechanical ventilation to heat, cool, humidify and clean the air for comfort, safety and health of employees. This includes the control of odour levels, and also the maintenance of carbon dioxide (CO2) below stipulated levels. Methods: The building is divided into two sections; west and east. Each section has its own ventilation supply. A randomisation process was used to ascertain which offices needed to be sampled, in which section as well as on which floor. For this study, five offices per section were measured. Thus, ten offices per floor were measured and measurements were taken on every second floor. All measurements were done in accordance with the specific requirements of the manufacturer of any specific instrument used and measurements were taken over an eight hour period (full work shift). Results were compared to the available standard, as well as compared to the ambient concentrations. Results: None of the monitored contaminants’ concentration were above the provided standards (ASHRAE or ACGIH). Where standards were unavailable, the HVAC system maintained an indoor contaminant concentration that is substantially lower when compared to the outdoor air concentrations. Conclusion: The buildings’ HVAC system maintains indoor air quality at a healthy level it is unlikely that any one of these contaminants may lead to SBS amongst the employees. / MSc (Occupational Hygiene), North-West University, Potchefstroom Campus, 2014

The aim of this study was to evaluate the "beautification of schools" programme as an environmental management tool with a view to facilitating the improvement thereof wherever necessary. An in-depth literature review on theoretical perspectives in environmental management indicated that these partially addressed the problem of the study, namely, to comply with some principles of environmental management system, but not to implement them fully. The theory developed from the literature review facilitated the development of an empirical research. Qualitative research was conducted to evaluate the "beautification of schools" programme as an environmental management tool with a view to facilitating the improvement thereof wherever necessary. It emerged from the findings of the research, that some schools do not have environmental policies. Those schools with environmental policies lack environmental policy objectives. They do not have time frames according to which environmental programmes of action need to be reviewed. Although some schools have used the environmental management strategies in the "beautification of schools" campaign as a management tool, they have never taken proactive measures to better manage the environment of their schools. / Thesis (M. Environmental Management)--North-West University, Potchefstroom Campus, 2005.

The telecommunication industry is dominating the world. Most recently there have been technological advancements made in mobile telecommunication. There are currently a few telecommunication organizations in South Africa. These organizations each have their own unique approach to service delivery. The strong competitive nature of the telecommunication industry is taking telecommunications in South Africa to greater heights. All these advancements necessitate the need for better security and controls of the telecommunications networks. RICA legislation was brought into effect to accomplish just this. The research focuses on the contingent use of systems development methodologies in the telecommunication industry in South Africa. The study determines how these telecommunication organizations choose a systems development methodology when developing systems. This study looks at how these organizations are currently implementing system development methodologies to keep up with the changes and competition within the industry. An interpretive approach was used to conduct the research. Four of the leading telecommunication organizations in South Africa were studied by using case studies. Each case study focused on a single telecommunication organization to gain in depth data regarding the use of systems development methodologies. The case studies were conducted by using structured interviews to gain data from multiple sources within the organizations. The data was analyzed using ATLAS.ti and a cross case analysis was done to answer the research questions. The results indicate that there is a contingent use of systems development methodologies within telecommunication organizations. The telecommunication organizations each use criteria to determine which systems development methodology to use. The results of the study indicate that there are different levels of contingency, and it examines how this is accomplished by each organization individually. Each of the organizations has a unique approach when selecting systems development methodologies. The systems development methodologies that are used by the telecommunication organizations are also tailored in some cases. / Thesis (M.Sc. (Computer Science))--North-West University, Potchefstroom Campus, 2011.

The telecommunication industry is dominating the world. Most recently there have been technological advancements made in mobile telecommunication. There are currently a few telecommunication organizations in South Africa. These organizations each have their own unique approach to service delivery. The strong competitive nature of the telecommunication industry is taking telecommunications in South Africa to greater heights. All these advancements necessitate the need for better security and controls of the telecommunications networks. RICA legislation was brought into effect to accomplish just this. The research focuses on the contingent use of systems development methodologies in the telecommunication industry in South Africa. The study determines how these telecommunication organizations choose a systems development methodology when developing systems. This study looks at how these organizations are currently implementing system development methodologies to keep up with the changes and competition within the industry. An interpretive approach was used to conduct the research. Four of the leading telecommunication organizations in South Africa were studied by using case studies. Each case study focused on a single telecommunication organization to gain in depth data regarding the use of systems development methodologies. The case studies were conducted by using structured interviews to gain data from multiple sources within the organizations. The data was analyzed using ATLAS.ti and a cross case analysis was done to answer the research questions. The results indicate that there is a contingent use of systems development methodologies within telecommunication organizations. The telecommunication organizations each use criteria to determine which systems development methodology to use. The results of the study indicate that there are different levels of contingency, and it examines how this is accomplished by each organization individually. Each of the organizations has a unique approach when selecting systems development methodologies. The systems development methodologies that are used by the telecommunication organizations are also tailored in some cases. / Thesis (M.Sc. (Computer Science))--North-West University, Potchefstroom Campus, 2011.

With parts of SA in a malaria endemic area, a preventative way of fighting malaria is with the use of pesticides such as 1,1,1–Trichloro–2,2–bis(pclorophenyl) ethane, also known as DDT. DDT is listed under the persistent organic pollutants (POPs) and considered an endocrine disruptive compound (EDC) under the Stockholm Convention. SA registered an exemption to use DDT as means to fight malaria. DDT and its isomers are, however, known EDCs. Combined with their ability to persist in the environment while not being target specific motivates further studies into possible detrimental effects. The present study aimed to establish if ED was present by comparing the male reproductive organs from snails from an area currently sprayed with DDT (for malaria control) to an area not sprayed with DDT in the Limpopo Province. A possible endpoint (the penis sheath/preputium length ratio or PSPLR) was identified for the freshwater snail Bulinus tropicus. B. tropicus and sediment samples were collected from DDT–sprayed and nonsprayed areas located close together. The snails were dissected and various morphometric parameters measured. Sediments from the sites where the snails were collected were analysed for DDT using GC–MS. Statistical analysis showed significant differences in PSPLR (and therefore possible ED) between snails from the two areas. The difference in PSPLR values was mainly due to a relatively shorter preputium for the snails from the DDT–sprayed area. Even though the sediment samples showed that DDT was present in most of the DDT–sprayed sites and not in the non–DDT sprayed sites, causality of the possible ED could not be established from this field study. This study indicated the possibility of using the PSPLR as endpoint for ED. Recommendations are made for further development of the PSPLR and B. tropicus as biological indicators for endocrine disruption, but causality must first be established. / Thesis (M.Sc (Environmental Science))--North-West University, Potchefstroom Campus, 2011.

With parts of SA in a malaria endemic area, a preventative way of fighting malaria is with the use of pesticides such as 1,1,1–Trichloro–2,2–bis(pclorophenyl) ethane, also known as DDT. DDT is listed under the persistent organic pollutants (POPs) and considered an endocrine disruptive compound (EDC) under the Stockholm Convention. SA registered an exemption to use DDT as means to fight malaria. DDT and its isomers are, however, known EDCs. Combined with their ability to persist in the environment while not being target specific motivates further studies into possible detrimental effects. The present study aimed to establish if ED was present by comparing the male reproductive organs from snails from an area currently sprayed with DDT (for malaria control) to an area not sprayed with DDT in the Limpopo Province. A possible endpoint (the penis sheath/preputium length ratio or PSPLR) was identified for the freshwater snail Bulinus tropicus. B. tropicus and sediment samples were collected from DDT–sprayed and nonsprayed areas located close together. The snails were dissected and various morphometric parameters measured. Sediments from the sites where the snails were collected were analysed for DDT using GC–MS. Statistical analysis showed significant differences in PSPLR (and therefore possible ED) between snails from the two areas. The difference in PSPLR values was mainly due to a relatively shorter preputium for the snails from the DDT–sprayed area. Even though the sediment samples showed that DDT was present in most of the DDT–sprayed sites and not in the non–DDT sprayed sites, causality of the possible ED could not be established from this field study. This study indicated the possibility of using the PSPLR as endpoint for ED. Recommendations are made for further development of the PSPLR and B. tropicus as biological indicators for endocrine disruption, but causality must first be established. / Thesis (M.Sc (Environmental Science))--North-West University, Potchefstroom Campus, 2011.

Protective, as well as punitive legal measures applicable to education, are embedded in various acts. Despite these legal measures, incidences of educator misconduct occur at schools and often go unpunished. The implied situation, namely that the legal measures are not applied correctly, as well as the effect that educator misconduct has on educator security, is a cause for concern. This study is embedded in Education Law as the subject area and aimed to determine the effect of educator misconduct on educator security. Factors contributing to the phenomenon of non-punishment of educator misconduct were also investigated and determined. By utilising a qualitative research design and participants from a specific geographical area, a variety of findings have been made. The most important finding is that particular instances of educator misconduct has a detrimental effect on educator security which manifests on the physical as well as psychological levels of the participants in this study. Educator misconduct not only impacts educator security, but may also lead to a dysfunctional equilibrium, rendering schools ineffective. Some reasons for not applying legal measures include an unacceptably low standard of legal knowledge among employees, union involvement, ubuntu and the tribal hierarchy system. These reasons have, however, been found to be perfunctory. The deep-seated reason can be attributed to the quest for modernisation. Not all societies have fully modernised and rural societies, in particular, are still trapped in a transition period. The expectancy levels for service delivery and professionalism in these societies are low, thus contributing to educators‟ misconduct and unprofessional behaviour. / MEd (Education Law), North-West University, Potchefstroom Campus, 2015

Protective, as well as punitive legal measures applicable to education, are embedded in various acts. Despite these legal measures, incidences of educator misconduct occur at schools and often go unpunished. The implied situation, namely that the legal measures are not applied correctly, as well as the effect that educator misconduct has on educator security, is a cause for concern. This study is embedded in Education Law as the subject area and aimed to determine the effect of educator misconduct on educator security. Factors contributing to the phenomenon of non-punishment of educator misconduct were also investigated and determined. By utilising a qualitative research design and participants from a specific geographical area, a variety of findings have been made. The most important finding is that particular instances of educator misconduct has a detrimental effect on educator security which manifests on the physical as well as psychological levels of the participants in this study. Educator misconduct not only impacts educator security, but may also lead to a dysfunctional equilibrium, rendering schools ineffective. Some reasons for not applying legal measures include an unacceptably low standard of legal knowledge among employees, union involvement, ubuntu and the tribal hierarchy system. These reasons have, however, been found to be perfunctory. The deep-seated reason can be attributed to the quest for modernisation. Not all societies have fully modernised and rural societies, in particular, are still trapped in a transition period. The expectancy levels for service delivery and professionalism in these societies are low, thus contributing to educators‟ misconduct and unprofessional behaviour. / MEd (Education Law), North-West University, Potchefstroom Campus, 2015

Rotavirus infection causes gastroenteritis, specifically severe gastroenteritis, affecting children younger than five globally, regardless of hygiene and water quality. Current licensed, live, attenuated vaccines do not contain the G9 genotype, which is a prevalent rotavirus strain circulating in sub-Saharan Africa, a region that carries a high rotavirus disease burden. Rotavirus-like particles (RV-VLPs) is an attractive non-live vaccine candidate, which has shown promising results in animal studies. Previously, dsRNA was extracted from a stool sample containing a South African human G9P[6] neonatal strain, and amplified cDNA using a sequence-independent procedure. The consensus sequence was obtained for the genome segments using 454® pyrosequencing. The insect-cell-codon-optimized genome segments 2 (VP2), 4 (VP4), 6 (VP6) and 9 (VP7) were cloned into a modified pFASTBACquad vector (pFBq). Several combinations of the genome segments were cloned to produce double-layered particles (DLP; pFBqVP2VP6) or triple-layered particles (TLP; pFBqVP2VP6VP7). In the current study, a ΔTLP (pFBqdVP2-VP8*VP6VP7) construct was generated. The first 92 amino acids of VP2 are not necessary for the conformation of recombinant RV-VLPs. The ORF of VP8*, which contains immune important epitopes, was fused to the 5’ end of the dVP2 coding region resulting in a dVP2-VP8* fused protein which was expressed in the presence of VP6 and VP7 to produce ΔTLPs. The Bac-to-Bac® Baculovirus Expression System and Spodoptera frugiperda (Sf) 9 insect cells were used for expression. All the proteins were successfully expressed. VP2, VP6, VP4 and the dVP2-VP8* fused protein were visible on Coomassie stained SDS-PAGE. Expression of VP7 could only be confirmed with western blot analysis. Particle formation, as assessed by transmission electron microscopy (TEM), was observed for DLPs. No TLPs of dVP2-8*/6/7 or VP2/6/7 were visualized due to the lower expression level of VP7 and the lack of calcium supplements during the assembly process. In conclusion, it was possible to produce RV-DLPs derived from the consensus sequence determined for a G9P[6] rotavirus directly from stool without prior propagation in cell culture or virus isolation. This strain contains both the G9 and P[6] genotypes that are currently prevalent in sub-Saharan Africa. / Thesis (MSc (Biochemistry))--North-West University, Potchefstroom Campus, 2013.