The National Commission of Special Needs in Education and Training (NCSNET) Document (1997) which portrays the new Education Policy in South Africa. clearly states that one of the crucial outcomes is that all possible barriers to learning must be eliminated so that all learners are able to actualise their full potential. Inclusive education, as embedded within the Education Policy, is regarded as an approach which will allow learners to actualise their full potential. This study is a critical reflection on whether inclusive education is practised in primary schools in the Thohoyandou area. The research findings indicated that inclusive education is not practised in the Thohoyandou area. A major factor or barrier in this regard is that teachers and principals are not empowered in terms ofknowledge to practise inclusive education. Other factors acting as barriers to the implementation of inclusive education are that the school buildings do not cater for physically and visually impaired learners as well as the attitudes of teachers, parents and peers are inclined to be negative towards learners experiencing barriers to learning. The community should also be educated and empowered to assist and understand these learners, who will become the future members of the community, more effectively, As inclusive education is one of the means whereby all learners are given the opportunity to actualise their full potential, these barriers must be addressed so that inclusive education can be practised in all primary schools in the Thohoyandou area. A few strategies to implement inclusive education in the Thohoyandou area are suggested by the researcher. / Educational Studies / M. Ed. (Special Needs Education)

The National Commission of Special Needs in Education and Training (NCSNET) Document (1997) which portrays the new Education Policy in South Africa. clearly states that one of the crucial outcomes is that all possible barriers to learning must be eliminated so that all learners are able to actualise their full potential. Inclusive education, as embedded within the Education Policy, is regarded as an approach which will allow learners to actualise their full potential. This study is a critical reflection on whether inclusive education is practised in primary schools in the Thohoyandou area. The research findings indicated that inclusive education is not practised in the Thohoyandou area. A major factor or barrier in this regard is that teachers and principals are not empowered in terms ofknowledge to practise inclusive education. Other factors acting as barriers to the implementation of inclusive education are that the school buildings do not cater for physically and visually impaired learners as well as the attitudes of teachers, parents and peers are inclined to be negative towards learners experiencing barriers to learning. The community should also be educated and empowered to assist and understand these learners, who will become the future members of the community, more effectively, As inclusive education is one of the means whereby all learners are given the opportunity to actualise their full potential, these barriers must be addressed so that inclusive education can be practised in all primary schools in the Thohoyandou area. A few strategies to implement inclusive education in the Thohoyandou area are suggested by the researcher. / Educational Studies / M. Ed. (Special Needs Education)

The purpose of the study was to develop best practice guidelines to prevent permanent hearing loss associated with the management of multi-drug resistant tuberculosis (MDR-TB) through raised awareness and monitoring. The Human Immunodeficiency Virus (HIV) and MDR-TB are global public health problems requiring urgent scale-up of treatment services. Irreversible sensorineural hearing loss (SNHL) is one of the adverse drug reactions of the current World Health Organization (WHO) recommended MDR-TB chemotherapy fuelling another public health problem, that disabling hearing loss, which is the second highest contributor of Years Lived with Disability (YLD) according to the World Health Report (2003). Expansion of MDR-TB treatment threatens to increase incidence of SNHL unless there is urgent implementation of intervention towards preservation of hearing for patients on treatment. This empirical study determined and documented the incidence of SNHL in HIV positive and HIV negative patients on MDR-TB treatment, the risk factors for SNHL, from the time treatment initiation to SNHL. Based on the findings, developed and improved the understanding of best practice guidelines for monitoring and prevention of MDR-TB treatment-related SNHL. The empirical study recruited a cohort of 173 patients with normal hearing status, after diagnosis with MDR-TB and enrolled on MDR-TB therapy over thirteen month period. Patients in the cohort received monthly hearing sensitivity testing during the intensive MDR-TB therapy when injectable aminoglycoside antibiotics are part of the treatment regimen. The three study endpoints included completion of the eight-month intensive treatment phase without developing hearing loss, development incident hearing loss or loss to follow up. Data was analysed using STATA statistical software and summarised using frequencies, means, proportions, and rates. The study documented incidence of SNHL, time to hearing loss and risk factors for hearing loss. Recommendations to prevent and monitor hearing loss are made based on the the study findings. / Health Studies / D. Litt. et Phil. (Health Studies)

Adaptability and invisibility are hallmarks of modern terrorism, and keeping pace with its dynamic nature presents a serious challenge for societies throughout the world. Innovations in computer science have incorporated applied mathematics to develop a wide array of predictive models to support the variety of approaches to counterterrorism. Predictive models are usually designed to forecast the location of attacks. Although this may protect individual structures or locations, it does not reduce the threat—it merely changes the target. While predictive models dedicated to events or social relationships receive much attention where the mathematical and social science communities intersect, models dedicated to terrorist locations such as safe-houses (rather than their targets or training sites) are rare and possibly nonexistent. At the time of this research, there were no publically available models designed to predict locations where violent extremists are likely to reside. This research uses France as a case study to present a complex systems model that incorporates multiple quantitative, qualitative and geospatial variables that differ in terms of scale, weight, and type. Though many of these variables are recognized by specialists in security studies, there remains controversy with respect to their relative importance, degree of interaction, and interdependence. Additionally, some of the variables proposed in this research are not generally recognized as drivers, yet they warrant examination based on their potential role within a complex system. This research tested multiple regression models and determined that geographically-weighted regression analysis produced the most accurate result to accommodate non-stationary coefficient behavior, demonstrating that geographic variables are critical to understanding and predicting the phenomenon of terrorism. This dissertation presents a flexible prototypical model that can be refined and applied to other regions to inform stakeholders such as policy-makers and law enforcement in their efforts to improve national security and enhance quality-of-life.

Information flow properties are away of specifying security properties of systems ,dating back to the work of Goguen and Meseguer in the eighties. In this framework ,a system is modeled as having high-level (or confidential)events as well as low-level (or public) events, and a typical property requires that the high-level events should not “influence ”the occurrence of low-level events. In other words, the sequence of low-level events observed from a system execution should not reveal “too much” information about the high-level events that may have taken place. For example, the trace-based “non-inference” property states that for every trace produced by the system, its projection to low-level events must also be a possible trace of the system. For a system satisfying non-inference, a low-level adversary (who knows the language generated by the system) viewing only the low-level events in any execution cannot infer any in-formation about the occurrence of high-level events in that execution. Other well-known properties include separability, generalized non-interference, non-deducibility of outputs etc. These properties are trace-based. Similarly there is another class of properties based on the structure of the transition system called bisimulation-based information flow properties, defined by Focardiand Gorrieriin1995. In our thesis we study the problem of model-checking the well-known trace-based and bisimulation-based properties for some popular classes of infinite-state system models. We first consider trace-based properties. We define some language-theoretic operations that help to characterize language-inclusion in terms of satisfaction of these properties. This gives us a reduction of the language inclusion problem for a class of system models, say F, to the model-checking problem for F, whenever F, is effectively closed under these language-theoretic operations. We apply this result to show that the model-checking problem for Petri nets, push down systems and for some properties on deterministic push down systems is undecidable. We also consider the class of visibly pushdown systems and show that their model-checking problem is undecidable in general(for some properties).Then we show that for the restricted class of visibly pushdown systems in which all the high (confidential) event are internal, the model-checking problem becomes decidable. Similarly we show that the problem of model-checking bisimulation-based properties is undecidable for Petrinets, pushdown systems and process algebras. Next we consider the problem of detecting information leakage in programs. Here the programs are modeled to have low and high inputs and low outputs. The well known definition of“ non-interference” on programs says that in no execution should the low outputs depend on the high inputs. However this definition was shown to be too strong to be used in practice, with a simple(and considered to be safe)“password-checking” program failing it.“Abstract non-interference(ANI)”and its variants were proposed in the literature to generalize or weaken non-interference. We call these definitions qualitative refinements of non-interference. We study the problem of model-checking many classes of finite-data programs(variables taking values from a bounded domain)for these refinements. We give algorithms and show that this problem is in PSPACE for while, EXPTIME for recursive and EXPSPACE for asynchronous finite-data programs. We finally study different quantitative refinements of non-interference pro-posed in the literature. We first characterize these measures in terms of pre images. These characterizations potentially help designing analysis computing over and under approximations for these measures. Then we investigate the applicability of these measures on standard cryptographic functions.

This study was designed to understand the meaning of the lived experiences of incarcerated male juveniles who had committed drug-related crimes and to suggest guidelines for their rehabilitation with specific reference to their health care needs. In order to achieve these objectives, the researcher used Parse’s (1998) Theory of Human Becoming as a theoretical framework for the study and Parse’s (1998, 2005) phenomenological-hermeneutic research method. This study was restricted to three juvenile correctional centres in the Gauteng province, Republic of South Africa (RSA). A sample of 15 male juveniles (5 at each of the three juvenile correctional centres) was used for the purpose of individual dialogical engagements with the participants. Focus group interview sessions were held with two groups (5 members per group) at two identified juvenile correctional centres. A qualitative content analysis according to methods recommended by Graneheim and Lundman (2004) was performed on the data that was collected from the individual dialogical-engagements and the focus group interviews. The researcher attempted to elucidate the meanings that the participants attached to their experiences of incarceration as narrated by them and analysed the data according to Parse’s (1998; 2005) phenomenological-hermeneutic method comprising of extraction-synthesis and heuristic interpretation. The findings of this research confirm that problems of drug abuse and criminal activity represent a multifaceted, complex and often intractable phenomenon. The research also confirmed that the participants suffer from a variety of emotional and psychological problems such as depression, anxiety, fear, guilt, remorse, regret and a craving for the drugs that they had abused before their incarceration. It appears that the participants find it extremely difficult to deal effectively with these disorders on their own and that they are generally averse to asking for professional help and assistance. Interventions to alleviate these problems are crucial for the success of the current rehabilitation programmes being pursued in the correctional centres where the participants are accommodated. / Health Studies / D. Litt. et Phil. (Health Studies)

Behaviour problems are a problem in many secondary schools in Zimbabwe. This study attempts to investigate the causes and manifestations of behaviour problems of adolescent learners and to develop guidelines for teachers on how to assist learners with behaviour problems in the classroom. This is a qualitative study using focus group and semi-structured interviews. The main findings contributing to the causes of behaviour problems among adolescent learners are environmental factors, such as the family and the school and peer pressure. Behaviour problems are manifested by adolescents as disruptive behaviour, aggressive and antisocial behaviour, telling lies and theft. The findings highlight important guidelines, which teachers can use to assist and understand learners with behaviour problems in the classroom. The guidelines present an endeavour to solve problem behaviour in the classroom. / Educational Studies / M.Ed. (Special Needs Education)

Behaviour problems are a problem in many secondary schools in Zimbabwe. This study attempts to investigate the causes and manifestations of behaviour problems of adolescent learners and to develop guidelines for teachers on how to assist learners with behaviour problems in the classroom. This is a qualitative study using focus group and semi-structured interviews. The main findings contributing to the causes of behaviour problems among adolescent learners are environmental factors, such as the family and the school and peer pressure. Behaviour problems are manifested by adolescents as disruptive behaviour, aggressive and antisocial behaviour, telling lies and theft. The findings highlight important guidelines, which teachers can use to assist and understand learners with behaviour problems in the classroom. The guidelines present an endeavour to solve problem behaviour in the classroom. / Educational Studies / M.Ed. (Special Needs Education)