Foram realizados três experimentos com o objetivo de determinar os efeitos do aumento da PDR da ração por meio do uso de fontes nitrogenadas com diferentes taxas de degradação ruminal. Exp. 1: 28 cordeiros da raça Santa Inês foram utilizados para avaliação do desempenho, características da carcaça e da carne e parâmetros sanguíneos. Além disso, foi avaliada a capacidade do SRNS em predizer o CMS e o GMD dos animais. O farelo de soja foi substituído pela uréia nos teores de 0,7%; 1,4% e 2,1% da MS. Não houve alteração no CMS e nos parâmetros de carcaça e da carne avaliados. Entretanto, o GMD e o peso final dos animais reduziu linearmente na medida que a uréia substituiu o farelo de soja. Por outro lado, a conversão alimentar e a concentração de nitrogênio uréico plasmático apresentou aumento linear com a adição de uréia nas rações. O modelo SRNS apresentou tendência de subestimar o CMS e superstimar o GMD. Exp. 2: 16 cordeiros da raça Santa Inês, canulados no rúmen, foram mantidos em gaiolas metálicas para ensaio de metabolismo e alimentados com as mesmas rações utilizadas no Exp. 1. Não houve diferença no consumo e nos coeficientes de digestibilidade aparente da MS, MO, PB e FDN, bem como no pH ruminal. Houve efeito quadrático para a concentração de acetato e para a produção total de AGCC, enquanto que a concentração de amônia ruminal aumentou linearmente com adição de uréia nas rações. O uso da uréia não alterou o metabolismo do nitrogênio, a excreção urinária de derivados de purina, a produção de nitrogênio microbiano e a eficiência de síntese microbiana. Embora tenha reduzido o GMD em 14,3%, a uréia pode ser utilizada com fonte exclusiva de nitrogênio na alimentação de cordeiros confinados. Exp. 3: 48 ovelhas da raça Santa Inês em lactação foram utilizadas para determinar os efeitos do uso de fontes nitrogenadas com diferentes taxas de degradação ruminal. O farelo de soja, a protenose mais uréia, o refinazil mais uréia ou a uréia foram utilizados como fontes de N, resultando em rações contendo 9,88; 10,4; 12,0 ou 13,4% de PDR, respectivamente. O CMS foi maior, a produção de leite e de leite corrigido para gordura tendeu ser maior (P<0,10) e o teor de gordura do leite foi menor para a ração contendo o farelo de soja. A produção diária de proteína foi maior e o teor de uréia no leite foi menor para as rações contendo o farelo de soja ou a protenose mais uréia como fontes nitrogenadas. A menor eficiência de utilização do N está associada com a alta taxa de degradação da proteína no rúmen, uma vez que as rações contendo 12,0 ou 13,4% de PDR resultaram na redução da produção de proteína do leite, maior concentração de uréia no leite, perda de peso e de condição corporal dos animais. Além disso, o aumento da PDR da ração com a substituição total da proteína verdadeira pela uréia comprometeu o consumo de matéria seca e a produção de ovelhas em lactação. / Three trials were conducted to evaluate the effects of increasing dietary RDP through the use of nitrogen sources with differents rumen degration rates. Trial 1: Twenty-eight Santa Ines ram lambs were used to evaluate the effects of replacing soybean meal by urea in high grain diets on performance, carcass characteristics, meat quality and blood parameters. In addition, were assessed the ability of SRNS to predict dry matter intake and average daily gain of lambs. Soybean meal in control diet was replaced by urea at 0.7; 1.4 e 2.1% on a DM basis. There were no differences among experimental diets for dry matter intake, carcass characteristics and meat parameters. However, average daily gain and final weight decreased linearly as the urea replaced soybean meal. Likewise, feed conversion and plasma urea nitrogen concentration increased linearly with the addition of urea in experimental diets. The SRNS model tended to underestimate dry matter intake and overestimate the average daily gain. Trial 2: Sixteen ruminally cannulated Santa Ines ram lambs were placed in metabolism crates and fed the same TMR used in Trial 1. There was no effect on DM intake, apparent digestibility of dry matter, organic matter, crude protein and neutral detergent fiber, as well as, ruminal pH. Acetate concentration and total short-chain fatty acids concentration showed a quadratic response, while ruminal ammonia concentration increased linearly with urea inclusion to the diet. The nitrogen metabolism, urinary excretion of purine derivatives, microbial nitrogen production and microbial protein synthesis was not influenced with the replacement of soybean meal by urea. Although decreased average daily gain in 14.3%, urea can be used as an exclusive N source in high grain diets fed to feedlot lambs. Trial 3: Forty-eight Santa Ines lactating ewes were used to determine the effects of diets containing N sources with different ruminal degradability. Soybean meal, corn gluten meal plus urea, corn gluten feed plus urea or urea were used as N source, resulting in diets with 9.88, 10.4, 12.0 and 13.4 % of RDP, respectively. Dry matter intake was higher, milk production and fat-corrected milk tended to be higher (P<0.10) and milk fat content was lower for soybean meal diet. Daily milk protein production was higher, and milk urea nitrogen content was lower for diets containing soybean meal or corn gluten meal plus urea as N source. The lower N efficiency was associated with high protein ruminal degradation rate, once the diets containing 12.0 or 13.4% RDP resulted in reduced milk protein production, higher milk urea concentration and loss of weight and body condition score. Furthermore, a higher RDP with the total replacement of the true protein by urea affected dry matter intake and milk production of lactating ewes.

The work focuses on the analysis of EU funds. Described is also the general functioning of the European community in terms of politics, economics, geographical kontext, regional policy and economics and social cohesion. Subsequently, the theoretical part of the work is devoted to tourism and choosing suitable program for derive financial resources for tourism development. The aim of this work is to draft a specific project based on information obstained from the analysis of the Rural Development Program in the Czech republic. Another objective is to assess the effects and benefits resulting from the project. The project proposal is developed in the practical part of the thesis. Finances are drawn from the European Agricultural Fund for Rural Development (EAFRD) through the Rural Development Program (RDP). The entire project is analyzed and evaluated in particular in economic and financial terms. Social and development aspect, creating new jobs and the overall of the project are evaluated too.

Foram realizados três experimentos com o objetivo de determinar os efeitos do aumento da PDR da ração por meio do uso de fontes nitrogenadas com diferentes taxas de degradação ruminal. Exp. 1: 28 cordeiros da raça Santa Inês foram utilizados para avaliação do desempenho, características da carcaça e da carne e parâmetros sanguíneos. Além disso, foi avaliada a capacidade do SRNS em predizer o CMS e o GMD dos animais. O farelo de soja foi substituído pela uréia nos teores de 0,7%; 1,4% e 2,1% da MS. Não houve alteração no CMS e nos parâmetros de carcaça e da carne avaliados. Entretanto, o GMD e o peso final dos animais reduziu linearmente na medida que a uréia substituiu o farelo de soja. Por outro lado, a conversão alimentar e a concentração de nitrogênio uréico plasmático apresentou aumento linear com a adição de uréia nas rações. O modelo SRNS apresentou tendência de subestimar o CMS e superstimar o GMD. Exp. 2: 16 cordeiros da raça Santa Inês, canulados no rúmen, foram mantidos em gaiolas metálicas para ensaio de metabolismo e alimentados com as mesmas rações utilizadas no Exp. 1. Não houve diferença no consumo e nos coeficientes de digestibilidade aparente da MS, MO, PB e FDN, bem como no pH ruminal. Houve efeito quadrático para a concentração de acetato e para a produção total de AGCC, enquanto que a concentração de amônia ruminal aumentou linearmente com adição de uréia nas rações. O uso da uréia não alterou o metabolismo do nitrogênio, a excreção urinária de derivados de purina, a produção de nitrogênio microbiano e a eficiência de síntese microbiana. Embora tenha reduzido o GMD em 14,3%, a uréia pode ser utilizada com fonte exclusiva de nitrogênio na alimentação de cordeiros confinados. Exp. 3: 48 ovelhas da raça Santa Inês em lactação foram utilizadas para determinar os efeitos do uso de fontes nitrogenadas com diferentes taxas de degradação ruminal. O farelo de soja, a protenose mais uréia, o refinazil mais uréia ou a uréia foram utilizados como fontes de N, resultando em rações contendo 9,88; 10,4; 12,0 ou 13,4% de PDR, respectivamente. O CMS foi maior, a produção de leite e de leite corrigido para gordura tendeu ser maior (P<0,10) e o teor de gordura do leite foi menor para a ração contendo o farelo de soja. A produção diária de proteína foi maior e o teor de uréia no leite foi menor para as rações contendo o farelo de soja ou a protenose mais uréia como fontes nitrogenadas. A menor eficiência de utilização do N está associada com a alta taxa de degradação da proteína no rúmen, uma vez que as rações contendo 12,0 ou 13,4% de PDR resultaram na redução da produção de proteína do leite, maior concentração de uréia no leite, perda de peso e de condição corporal dos animais. Além disso, o aumento da PDR da ração com a substituição total da proteína verdadeira pela uréia comprometeu o consumo de matéria seca e a produção de ovelhas em lactação. / Three trials were conducted to evaluate the effects of increasing dietary RDP through the use of nitrogen sources with differents rumen degration rates. Trial 1: Twenty-eight Santa Ines ram lambs were used to evaluate the effects of replacing soybean meal by urea in high grain diets on performance, carcass characteristics, meat quality and blood parameters. In addition, were assessed the ability of SRNS to predict dry matter intake and average daily gain of lambs. Soybean meal in control diet was replaced by urea at 0.7; 1.4 e 2.1% on a DM basis. There were no differences among experimental diets for dry matter intake, carcass characteristics and meat parameters. However, average daily gain and final weight decreased linearly as the urea replaced soybean meal. Likewise, feed conversion and plasma urea nitrogen concentration increased linearly with the addition of urea in experimental diets. The SRNS model tended to underestimate dry matter intake and overestimate the average daily gain. Trial 2: Sixteen ruminally cannulated Santa Ines ram lambs were placed in metabolism crates and fed the same TMR used in Trial 1. There was no effect on DM intake, apparent digestibility of dry matter, organic matter, crude protein and neutral detergent fiber, as well as, ruminal pH. Acetate concentration and total short-chain fatty acids concentration showed a quadratic response, while ruminal ammonia concentration increased linearly with urea inclusion to the diet. The nitrogen metabolism, urinary excretion of purine derivatives, microbial nitrogen production and microbial protein synthesis was not influenced with the replacement of soybean meal by urea. Although decreased average daily gain in 14.3%, urea can be used as an exclusive N source in high grain diets fed to feedlot lambs. Trial 3: Forty-eight Santa Ines lactating ewes were used to determine the effects of diets containing N sources with different ruminal degradability. Soybean meal, corn gluten meal plus urea, corn gluten feed plus urea or urea were used as N source, resulting in diets with 9.88, 10.4, 12.0 and 13.4 % of RDP, respectively. Dry matter intake was higher, milk production and fat-corrected milk tended to be higher (P<0.10) and milk fat content was lower for soybean meal diet. Daily milk protein production was higher, and milk urea nitrogen content was lower for diets containing soybean meal or corn gluten meal plus urea as N source. The lower N efficiency was associated with high protein ruminal degradation rate, once the diets containing 12.0 or 13.4% RDP resulted in reduced milk protein production, higher milk urea concentration and loss of weight and body condition score. Furthermore, a higher RDP with the total replacement of the true protein by urea affected dry matter intake and milk production of lactating ewes.

Philosophiae Doctor - PhD / This research project, in which social welfare constitutes the central focus of study, is undertaken within the broad field of development studies. The basic concern of the study is to determine the role and the place of social welfare in a post-apartheid South Africa. The study therefore seeks to produce some of the policy-making knowledge and a framework for formulating alternative social policies. With the emergence of the post-apartheid South Africa, social welfare as a system, and social policy in particular, finds itself at a water-shed. For many years social welfare has been practised on a racially-differentiated basis. Social policies were firmly rooted in the prevailing political ideology of apartheid. During its formal inception in the 193Q's, the primary objective of social welfare was to solve the Poor White problem. Currently we have reached a critical turning point in the history of our country. The establishment of an inclusive democracy should have a direct impact on the welfare of all citizens. In this new context we have to deal with mass poverty - the basic human needs of many South Africans not being met - and extreme inequalities. Meanwhile we are saddled with different models of welfare based on the fragmented social policies of the past. Various themes pertaining to social welfare are examined with the view to proposing some solutions to the dilemma. Theories of development constitute the frame of reference for the analysis and development of alternative social policies. Applying these theoretical foundations, a special study is made of the emergence and structuring of social welfare in South Africa. In an empirical study the views of stakeholders in the field are gathered using qualitative methodology. Theories of development, the Reconstruction and Development Programme, the idea of social welfare as a system to meet human needs, and the views of stakeholders, form the basis for the development of alternative social policies in the post-apartheid South Africa. Using this conceptual framework and analysis of contemporary realities, certain policy proposals are examined for their appropriateness to address post-apartheid challenges. The study demonstrates that a paradigm shift is absolutely necessary in order to deal with emerging realities in South Africa. This paradigm shift entails that social welfare adopt a developmental approach within an integrated policy framework.

>Magister Scientiae - MSc / Physiotherapy services for disabled children and their families have conventionally been received at a hospital or school for children with special educational needs in the main towns and cities of South Africa. Community-Based Rehabilitation (CBR) programmes were proposed and established as an additional approach to Institutional-Based Rehabilitation to address the need for accessible resources for these families. In this study the author evaluated two CBR programmes for disabled children and their main caregivers in two separate low socioeconomic peri-urban areas of Cape Town. The programme, a weekly group meeting, included physiotherapy interventions to assist the development and functional abilities of the children by means of activities that the caregivers could include in daily home care. They handled their own children following demonstrations and correction of handling skills by the author. The majority of the caregivers were mothers. Their children, less than 13 years old, were severely intellectually impaired. Some with concomitant physical disabilities. The author implemented the interventions of the CBR programme and she required to understand the impact on the particpants in a study using qualiative research methods. In the pilot programme the attendant members were individually interviewed, after her withdrawal, for their opinions of the outcomes. Evaluation documentation.ofjheir children and CBR programme records were related to the caregivers' responses. From the pilot study experiences the author felt that additional methods of data collection would result in a greater understanding of the impacts of the interventions. Expanded methods of research were utilised in the study of the second group. During the interventions at group meetings the author used field notes to record observations. Participant observation allowed the author to analysis the responses of the participants. Focus group interviews assisted in understanding external factors influencing the participants as well as their needs. Individual interviews, after the closure of the CBR programme, allowed the participants to express their views of the interventions. Documentation of the individual evaluation of each child was related to the views expressed by the caregivers. Common meanings and themes were explored in the analysis of the various data collected. Analysis revealed that interventions of education and training for the caregivers improved their knowledge and understanding of the impairments and disability of their children. The children benefited functionally from their families increased skills and knowledge. Through discussion with other families at group meetings, the caregivers had an understanding of other disabilities in children and developmental outcomes possible for their own child. The caregivers were more confident to address the negative perceptions of disability in their communities. It is recommended that physiotherapists implementing any interventions for disabled children should ensure that the caregivers are partners in planning and selection of interventions and that their needs are addressed. Community participation in Community-Based Rehabilitation programmes was required for the participants to become self-reliant and solve their own needs as well as for the programme to be sustainable. This was demonstrated in only one of the programmes.

Poverty is the most problematic social problem facing the South African society today. Its causes have been associated with many factors such as the high rate of unemployment, HIV/AIDS, low educational backgrounds of people and others. In order to reduce poverty and other conditions of exclusion, government has introduced the Reconstruction and Development Programme (RDP) which is concentrated on the mobilization of resources from government institutions and non-governmental organizations towards the improvement of the quality of life of the communities, especially those which were historically disadvantaged. The RDP is realized through a number of different programmes which are conducted by different government departments and nongovernmental organizations. One of these programmes is the Poverty Relief Programme (PRP) which was formulated by the Department of Social Development and implemented and evaluated by some of the provincial departments of Health and Welfare. This study is about the evaluation of the formulation, implementation and evaluation of the PRP in the Limpopo Province within the context of the RDP from a social work perspective. In order to successfully evaluate the PRP, the researcher has categorized this study into three objectives, which form this report. The first objective was to conduct an extensive literature investigation regarding poverty as a social problem, public policy and the RDP and the PRP. Poverty was identified as a social problem because it is a condition of deprivation which affects a large number of people and communities due to the previous South African apartheid dispensation. Poverty is said to affect the poor due to their cultural orientation because they are lazy to work, they fail to suppress their immediate gratification, they consume large amounts of substances, they keep large family households which have the highest incidents of domestic violence and child and wife physical and sexual abuse, they do not obtain the opportunities available to them for their development and they have high rates of divorce. The second analogous view of poverty is that it is caused by the inadequate social policies and social programmes, which are developed to assist the poor. This view explains that poverty is evident due to the reason that the social policies and social programmes are weak in eradicating it. At this level, the researcher attempted to distinguish between the concepts public policy, social policy and a social programme. The public policy is every policy which is developed by cabinet, which when closely viewed, it has types such as the social policy, economic policy, defense policy, foreign policy and the environmental policy. The RDP is a social policy which is realized through a number of social programmes, one of them being the PRP. This study conceptualized the public policy through discussions of its theoretical models, namely; the descriptive and prescriptive models regarding public policy making. The former is aimed at explaining the public policy making process whilst the latter explains the outcomes or the impacts associated with public policy making. This study suggested that public policy making is made possible when it is conducted through a specific process which has five phases, namely; the policy agenda, policy formulation, policy adoption, policy implementation and policy evaluation. The RDP has already been mentioned as a social policy, which could be realized through social programmes, one of them being the PRP. The PRP is a social programme, which has an aim of alleviating poverty within South African communities. It is effective in achieving its mission through conducting a number of projects which are as follows: food security initiatives, community development structures, development of the self-help organizations, the aged and child care, the disabled, youth who are deviant, financial planning and management and monitoring and evaluation. This study was aimed at evaluating whether the objectives of the PRP were adequately formulated, implemented and evaluated towards the eradication of poverty in the South African context. The second objective of this study was to conduct an empirical investigation with regard to the formulation, implementation and evaluation of the PRP in the Limpopo Province. The researcher utilized the exploratory research design because the evaluation of the PRP in the Limpopo Province has not been done before. The research project utilized the quantitative and qualitative research methodologies, which were combined into a mixed methodological design model. The populations for the study were a PRP framework, the key-informants who participated during the implementation of the projects and the community development officers who participated during the formulation, implementation and evaluation of the PRP. This also called for a variety of the sampling methods, namely; the judgmental sampling method, the stratified random sampling method and the simple random sampling method which were used to select the key-informants, and the systematic random sampling method which was used to select the community development officers. The research data were also collected through a variety of data collection methods, namely; content analysis was used to collect quantitative data regarding the formulation of the PRP as document; semi-structured interviews were utilized to collect both quantitative and qualitative data regarding the implementation of the PRP from the key-informants; and the self-administered questionnaires were used to collect the quantitative and qualitative data regarding the formulation, implementation and evaluation of the PRP from the community development officers. The data for this study were analysed through two methods, namely: the quantitative data were analysed manually and were expressed into tables and figures and the qualitative data were analysed through the coding process which was contributed by Creswell (1998). The empirical investigation for this study purported the following important research findings regarding the formulation, implementation and evaluation of the PRP in the Limpopo Province: (i) the content analysis revealed that the PRP has objectives which are not related to the reduction of poverty in the communities, such as the community development structures which are not an objective but rather a prerequisite for every project, youth who are deviant, the aged and child care which could be effective if developed into programmes already available in the field of gerontology and the child support grant, financial planning and management, monitoring and evaluation which is a phase of the community development project. (ii) the semi-structured interviews revealed that community development projects and community needs are being identified by the community development officers on behalf of communities and that most of the projects are inadequately funded and as such they fail to sustainably develop communities. (iii) the self-administered questionnaires revealed that most community development officers hold standard ten as their highest educational qualification which is highly available in the communities they serve, they do not have a professional background and are not registered with the professional council which is recognized in the country, the PRP was formulated centrally at the Department of Social Development and is being implemented and evaluated by some of the provincial departments of Health and Welfare and that the funding for the community development projects is insufficient. The third objective of the study was to make conclusions and recommendations based on the research findings with regard to the effective formulation, implementation and evaluation of the PRP in the Limpopo Province. It has been concluded in this study that the poor implementation and evaluation of the PRP in the Limpopo Province is due to the absence of a specific framework, and the researcher recommended that such a document must be developed. Poor implementation and evaluation of the PRP in the Limpopo Province is due to the centralization of the programme and therefore the researcher recommends that the department of Social Development must be decentralized to the provinces. The researcher concluded that the grassroots are denied an opportunity to actively participate in the formulation, implementation and evaluation of the PRP, and he therefore recommended that the grassroots must be involved in the identification of their community needs and projects, their planning, implementation and evaluation. Another limitation of the PRP was mentioned as poor funding of the community development projects, and the researcher maintained that if the projects are adequately funded, they will sustainably develop communities. The researcher is of the opinion that community development practitioners must hold high educational qualifications which are not available in the communities they serve and that immediately such practitioners interact with the communities, they must be required to be registered with a recognized professional council. / Thesis (DPhil (Social Work))--University of Pretoria, 2004. / Social Work and Criminology / Unrestricted

In South Africa, democracy has brought transformative improvement in the system of governance. The Constitution of the Republic of South Africa (1996) implemented in the post-apartheid era, has raised the status of the lowest sphere of government, by granting these authorities delegated responsibilities. This sphere of governance is known as local government (municipal government) and in the present context developmental local government is both democratically elected and decentralized. The restructuring of local governance requires municipalities to serve the communities within their areas of jurisdiction. This has brought capacity challenges for the municipalities. They are charged with delivering acceptable standards of services to the residents. The current lack of deliverance is evident in the widespread protests, with community members showing their dissatisfaction with sub-standard service delivery and backlogs. Furthermore, municipalities are required to formulate their own by-laws improve the lives of community members, and to implement their legislative mandates satisfactorily. In order for the municipalities to perform more effectively, a transformative model is necessary. The quality of services currently delivered at municipal level must be reviewed. Monitoring and evaluation are the key elements of assessment which must be undertaken. The rationale behind this monitoring and evaluation is to make the system of governance more effective through an even-handed assessment of policies, programmes, projects, strategies, performance of personnel, and the organization as a whole. For the purpose of this study, the researcher explored the challenges regarding monitoring and evaluation and its impact on sustainable development in Sedibeng District Municipality utilizing the quantitative research approach. A model is proposed for improvement called as Monitoring and Evaluation for Sustainable Development (MESD). / PhD (Public Management and Governance), North-West University, Vaal Triangle Campus, 2014

In South Africa, democracy has brought transformative improvement in the system of governance. The Constitution of the Republic of South Africa (1996) implemented in the post-apartheid era, has raised the status of the lowest sphere of government, by granting these authorities delegated responsibilities. This sphere of governance is known as local government (municipal government) and in the present context developmental local government is both democratically elected and decentralized. The restructuring of local governance requires municipalities to serve the communities within their areas of jurisdiction. This has brought capacity challenges for the municipalities. They are charged with delivering acceptable standards of services to the residents. The current lack of deliverance is evident in the widespread protests, with community members showing their dissatisfaction with sub-standard service delivery and backlogs. Furthermore, municipalities are required to formulate their own by-laws improve the lives of community members, and to implement their legislative mandates satisfactorily. In order for the municipalities to perform more effectively, a transformative model is necessary. The quality of services currently delivered at municipal level must be reviewed. Monitoring and evaluation are the key elements of assessment which must be undertaken. The rationale behind this monitoring and evaluation is to make the system of governance more effective through an even-handed assessment of policies, programmes, projects, strategies, performance of personnel, and the organization as a whole. For the purpose of this study, the researcher explored the challenges regarding monitoring and evaluation and its impact on sustainable development in Sedibeng District Municipality utilizing the quantitative research approach. A model is proposed for improvement called as Monitoring and Evaluation for Sustainable Development (MESD). / PhD (Public Management and Governance), North-West University, Vaal Triangle Campus, 2014

In this thesis the feasibility of making social transfers conditional in South Africa is examined with specific focus on the Child Support Grant. Currently, there are more than 8.7 million children receiving Child Support Grants, which is impacting positively on poverty alleviation. Yet, social outcomes, especially in health and education are poor. The conditionality of transfers will compel the parents/guardians of these children to ensure that the children regularly attend school and also utilise the health services. Conditional cash transfers, by their nature, attempt to address the low demand for these services, which are available but are not being utilised. The National Income Dynamic Study (NIDS) is employed to test empirically whether it will be feasible to institute conditionality to the CSG. The methodology adopted is to determine if there is any statistically significant difference (education and health outcomes) between the recipients of the CSG with non-recipients of the CSG. Moreover, the population (as extrapolated from the sample) is separated into four groups, namely, children that qualify and receive the grant (QR), children that qualify and do not receive the grant (QNR), children that do not qualify and receive the grant (NQR) and children that do not qualify and do not receive the grant (NQNR). Subsequently, educational and health outcomes are compared between these groups to determine if there is any statistically significant difference between them. The results demonstrate that school attendance is high among children, and there is no significant difference in school attendance between the recipients and non-recipients of the CSG; as well as between the QR, QNR, NQR and NQNR. Moreover, there is no substantial difference in education outcomes (grade repetition) between the recipients and non-recipients of the CSG; as well as between the four groups. Similar results are found for health where there is no statistically significant difference between the groups regarding utilisation of health services as well as health outcomes. Therefore, conditionality of the CSG would not be feasible, as it does not address the causes of poor health and education outcomes, which are mainly due to supply-side deficiencies. Government should rather strengthen current poverty alleviation policies which seem to be impacting positively on poverty reduction. / Economics / D. Com (Economics)

Cette thèse porte sur le diagnostic des systèmes à événements discrets modélisés par des Réseaux de Petri labellisés (RdP-L). Les problèmes de diagnostic monolithique et de diagnostic modulaire sont abordés. Des contributions sont proposées pour résoudre les problèmes d'explosion combinatoire et de complexité de calcul. Dans le cadre de l'analyse de la diagnosticabilité monolithique, certaines règles de réduction sont proposées comme un complément pour la plupart des techniques existantes de l'analyse de la diagnosticabilité, qui simplifient le modèle RdP-L tout en préservant sa propriété de diagnosticabilité. Pour un RdP-L sauf et vivant, une nouvelle condition suffisante pour la diagnosticabilité est proposée. Pour un RdR-L borné et non bloquant après l'occurrence d'une faute, l'analyse à-la-volée est améliorée en utilisant la notion d'explications minimales qui permettent de compacter l'espace d'état ; et en utilisant des T-semiflots pour trouver rapidement un cycle indéterminé. Une analyse à-la-volée utilisant Verifier Nets (VN) est proposée pour analyser à la fois les RdP-L bornés et non-bornés, ce qui permet d'obtenir un compromis entre efficacité du calcul et limitation des explosions combinatoires. Dans le cadre de l'analyse de la diagnosticabilité modulaire, une nouvelle approche est proposée pour les RdP-Ls décomposés. Les règles de réduction, qui préservent la propriété de la diagnosticabilité modulaire, sont appliquées pour simplifier le modèle initial. La diagnosticabilité locale est analysée en construisant le VN et le Graphe d'Accessibilité Modifié (MAG) du modèle local. La diagnosticabilité modulaire est vérifiée en construisant la composition parallèle du MAG et des graphes d'accessibilités d'autres modules du système. La complexité de calcul est inférieure à celles des autre approches dans la littérature. D'autre part, l'explosion combinatoire est également réduite en utilisant la technique de ε-réduction / This thesis deals with fault diagnosis of discrete event systems modeled by labeled Petri nets (LPN). The monolithic diagnosability and modular diagnosability issues are addressed. The contributions are proposed to reduce the combinatorial explosion and the computational complexity problems. Regarding monolithic diagnosability analysis, some reduction rules are proposed as a complement for most diagnosability techniques, which simplify the LPN model and preserve the diagnosability property. For a safe and live LPN, a new sufficient condition for diagnosability is proposed. For a bounded LPN that does not deadlock after a fault, the on-the-fly diagnosability analysis is improved by using minimal explanations to compact the state space; and by using T-invariants, to find quickly an indeterminate cycle. An on-the-fly diagnosability analysis using Verifier Nets (VN) is proposed to analyze both bounded and unbounded LPN, which achieves a compromise between computation efficiency and combinatorial explosion limitation. Regarding modular diagnosability analysis, a new approach is proposed for decomposed LPNs model. Reduction rules, that preserve the modular diagnosability property, are applied to simplify the model. The local diagnosability is analyzed by building the VN and the Modified Reachability Graph (MRG) of the local model. The modular diagnosability is verified by building the parallel composition of the MRG and the reachability graphs of other modules of the system. We prove in this study that the computational complexity of our approach is lower than existing approaches of literature. The combinatorial explosion is also reduced by using the ε -reduction technique.