Text in English / The issue of offenders’ re-integration has become an important topic to the Department of Correctional Services in South Africa due to high number of incarcerated individuals who need to return back into the society as law abiding citizens. Around the world, scholars have researched about offenders’re- integration. However, they tend to focus on adult ex-offenders, neglecting young adult male ex-offenders’ experiences of the family re-entry process. Scholars neglected that the consequences of being incarcerated at a young age (age 19-34) puts young people at overwhelming risks of future incarceration, unemployment, poor physical and mental health. Therefore, this study focused on seven young adult male ex-offenders in Sekhukhune district, aged between 24 and 34 years who returned to their families after incarceration. Participants were selected using purposive sampling and volunteer self-selection sampling, through the assistance of Tswelopele Ex-Offenders Forums in Sekhukhune area. This study explored, described and interpreted the meaning, benefits, challenges and coping strategies of the young adult males in regard to their family re-entry processes. This goal was achieved by adopting the interpretive phenomenological analysis (IPA) research design and conducting individual semi-structured interviews with the young adult ex-offenders. The IPA data analysis guidelines were followed to analyse data and the Person-environment (P-E) fit theory grounded this analysis as the emerging themes were further interpreted in light of the assumptions of this theory. The findings show that the process of family re-entry was an emotional rollercoaster for the young men concerning moving forward post their incarceration. They specifically experienced different moments of ambivalence, which was due to reuniting with family members on the one hand, but having to rely on family members for support, on the other hand. While being back in the family led to emotions of happiness and satisfaction, not being able to meet their family expectations and to perform the roles expected of people of their age led to various negative emotions, including sadness and anxiety. / Psychology / M.A. (Research Consultation (Psychology))

The re-entry space vehicles encounter high temperatures when they enter the earth atmosphere and the high temperature air in the shock layer around the body undergoes partial dissociation. Also, the gas molecules injected into the shock layer from the ablative thermal protection system (TPS) undergo pyrolysis which helps in reducing the net heat flux to the vehicle surface. The chemical species due to the pyrolysis add complexity to the stagnation flow chemistry (52 chemical reactions) models which include species like NOx, CO and hydrocarbons (HCs). Although the ablative TPS is responsible for the safety of re-entry space vehicle, the induced chemical species result in variety of adverse effects on environment such as global warming, acid rain, green house effect etc. The well known three-way-catalyst (TWC) involves simultaneous removal of all the three gases (i.e, NOx, CO, Hydrocarbons) present in the shock layer. Interaction of such three-way-catalyst on the heat shield materials or on the wall of the re-entry space vehicle is to reduce the heat flux and to remove the gases in the shock layer, which is an important issue. For the re-entry vehicle the maximum aerodynamic heating occurs at an altitude ranging about 68 to 45 km during which the vehicle is surrounded by high temperature dissociated air. Then the simplest real gas model of air is the five species model which is based on N2, O2, O, NO and N. This five species model assumes no ionization and no pyrolysis gases are emitted from the heat shield materials. The experimental research work presented in this thesis is directed towards the understanding of catalytic and non-catalytic surface reactions on high temperature materials in presence of strong shock heated test gas. We have also explored the possibility of using shock tube as a high enthalpy device for synthesis of new materials. In the first Chapter, we have presented an overview of re-entry space vehicles, thermal protection system (TPS) and importance of real gas effects in the shock layer. Literature survey on TPS, ablative materials and aerothermochemistry at the stagnation point of reentry capsule, in addition to catalytic and non-catalytic surface reactions between the wall and dissociated air in the shock layer are presented. In Chapters 2 and 3, we present the experimental techniques used to study surface reactions on high temperature materials. A brief description of HST2 shock tunnel is presented and this shock tunnel is capable of generating flow stagnation enthalpies ranging from 0.7 to 5 MJ/kg and has an effective test time of ~ 800 µs. High speed data acquisition system (National Instruments and Yokogawa) used to acquire data from shock tube experiments. The experimental methods like X-ray Photoelectron Spectroscopy (XPS), Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), Raman and FTIR spectroscopy have been used to characterize the shock-exposed materials. Preliminary research work on surface nitridation of pure metals with shock heated nitrogen gas is discussed in Chapter 2. Surface nitridation of pure Al thin film with shock heated N2 is presented in Chapter 3. An XPS study shows that Al 2p peak at 74.2 eV is due to the formation AlN on the surface of Al thin film due to heterogeneous non-catalytic surface reaction. SEM results show changes in surface morphology of AlN film due to shock wave interaction. Thickness of AlN film on the surface increased with the increase in temperature of the shock heated nitrogen gas. However, HST2 did not produce sufficient temperature and pressure to carry out real conditions of re-entry. Therefore design and development of a new high enthalpy shock tunnel was taken up. In Chapter 4, we present the details of design and fabrication of free piston driven shock tunnel (FPST) to generate high enthalpy test gas along with the development of platinum (Pt) and thermocouple sensors for heat transfer measurement. A free piston driven shock tunnel consists of a high pressure gas reservoir, compression tube, shock tube, nozzle, test section and dump tank connected to a vacuum pumping system. Compression tube has a provision to fill helium gas and four ports, used to mount optical sensors to monitor the piston speed and pressure transducer to record pressure at the end of the compression tube when the piston is launched. Piston can attain a maximum speed of 150 m/s and compress the gas inside the compression tube. The compressed gas bursts the metal diaphragm and generates strong shock wave in the shock tube. This tunnel produces total pressure of about 300 bar and temperature of about 6000 K and is capable of producing a stagnation enthalpy up to 45 MJ/kg. The calibration of nozzle was carried out by measuring the pitot tube pressure in the dump tank. Experimentally recorded P5 pressure at end of the shock tube is compared with Numerical codes. Calibrated pressure P5 values are used to calculate the temperature T5 of the reflected shock waves. This high pressure and high temperature shock heated test gas interacts with the surface of the high temperature test materials. For the measurement of heat transfer rate, platinum thin film sensors are developed using DC magnetron sputtering unit. Hard protective layer of aluminum nitride (AlN) on Pt thin film was deposited by reactive DC magnetron sputtering to measure heat transfer rate in high enthalpy tunnel. After the calibration studies, FPST is used to study the heat transfer rate and to investigate catalytic/non-catalytic surface reaction on high temperature materials. In Chapter 5, an experimental investigation of non-catalytic surface reactions on pure carbon material is presented. The pure carbon C60 films and conducting carbon films are deposited on Macor substrate in the laboratory to perform shock tube experiments. These carbon films were exposed to strong shock heated N2 gas in the shock tube portion of the FPST tunnel. The typical shock Mach number obtained is about 7 with the corresponding pressure and temperature jumps of about 110 bar and 5400 K after reflection at end of the shock tube. Shock exposed carbon films were examined by different experimental techniques. XPS spectra of C(1s) peak at 285.8 eV is attributed to sp2 (C=N) and 287.3 eV peak is attributed to sp3 (C-N) bond in CNx due to carbon nitride. Similarly, N(1s) core level peak at 398.6 eV and 400.1 eV observed are attributed to sp3-C-N and sp2-C=N of carbon nitride, respectively. SEM study shows the formation of carbon nitride crystals. Carbon C60 had melted and undergone non-catalytic surface reaction with N2 while forming carbon nitride. Similar observations were made with conducting carbon films but the crystals were spherical in shape. Micro Raman and FTIR study gave further evidence on the formation of carbon nitride film. This experimental investigation confirms the formation of carbon nitride in presence of shock-heated nitrogen gas by non-catalytic surface reaction. In Chapters 6 and 7, we present a novel method to understand fully catalytic surface reactions after exposure to shock heated N2, O2 and Ar test gas with high temperature materials. We have employed nano ZrO2 and nano Ce0.5Zr0.5O2 ceramic high temperature materials to investigate surface catalytic reactions in presence of shock heated test gases. These nano crystalline oxides are synthesized by a single step solution combustion method. Catalytic reaction was confirmed for both powder and film samples of ZrO2. As per the theoretical model, it is known that the catalytic recombination reaction produces maximum heating on the surface of re-entry space vehicles. This was demonstrated in this experiment when a metastable cubic ZrO2 changed to stable monoclinic ZrO2 phase after exposure to shock waves. The change of crystal structure was seen using XRD studies and needle type monoclinic crystal growth with aspect ratio (L/D) more than 15 was confirmed by SEM studies. XPS of Zr(3d) core level spectra show no change in binding energy before and after exposure to shock waves, confirming that ZrO2 does not change its chemical nature, which is the signature of catalytic surface reaction. When a shock heated argon gas interacted with Ce0.5Zr0.5O2 compound, there was a change in colour from pale yellow to black due to reduction of the compound, which is the effect of heat transfer from the shock wave to the compound in presence of argon gas. The reduction reaction shows the release of oxygen from the compound due to high temperature interaction. The XPS of Ce(3d) and Zr(3d) spectra confirm the reduction of both Ce and Zr to lower valent states. The oxygen storage and release capacity of the Ce0.5Zr0.5O2 compound was confirmed by analyzing the reduction of Ce4+ and Zr4+ with high temperature gas interaction. When Ce0.5Zr0.5O2 (which is same as Ce2Zr2O8) in cubic fluorite structure was subjected to strong shock, it changed to pyrochlore (Ce2Zr2O7) structure by releasing oxygen and on further heating it changed to Ce2Zr2O6.3 which is also crystallized in pyrochlore structure by further releasing oxygen. If this heating is carried out in presence of argon test gas, fluorite structure can easily change to pyrochlore Ce2Zr2O6.3 structure, which is a good electrical conductor. Due to its oxygen storage capability (OSC) and redox (Ce4+/Ce3+) properties, Ce0.5Zr0.5O2 had been used as oxygen storage material in three-way-catalyst. Importance of these reactions is that the O2 gas released from the compound will react with gas released from the heat shield materials, like NOx, CO and hydrocarbon (HCs) species which results in reduction of temperature in the shock layer of the re-entry space vehicle. The compound Ce0.5Zr0.5O2 changes its crystal structure from fluorite to pyrochlore phase in presence of shock heated test gas. The results presented in these two Chapters are first of their kind, which demonstrates the surface catalytic reactions. In Chapter 8, we present preliminary results of the oxygen recombination on the surface of heat shield material procured from Indian Space Research Organization (ISRO) used as TPS in re-entry space capsule (Space capsule Recovery Experiment SRE-1) and on thin film SiO2 deposited on silicon substrate. The formation of SiO between the junctions of SiO2/Si was confirmed using XPS study when shock exposed oxygen reacted on these materials. The surface morphology of the ablated SiO2 film was studied using SEM. The damage induced due to impact of shock wave in presence of oxygen gas was analyzed using Focused Ion Beam (FIB) microscope. The results reveal the damage on the surface of SiO2 film and also in the cross-section of the film. We are further investigating use of FIB, particularly related to residual stress developed on thin films due to high pressure and high temperature shock wave interaction. In Chapter 9, conclusions on the performance of FPST, synthesis of high temperature materials, catalytic and non-catalytic surface reactions on the high temperature material due to shock-heated test gases are presented. Possible scope for future studies is also addressed in this Chapter.

When conducting research on crime, scholars are generally inclined to focus on the aetiology, hence our comprehension of biological and/or environmental factors as antecedents of crime. In this study, however, acknowledgement was given to ex-offenders who, once released from prison showed positive signs of disengagement from crime and posed the following questions: what are the lived experiences of ex-offenders who desist from crime and what are the reasons influencing their decisions to stop offending? Four adult male ex-offenders of African descent between the ages of 30 and 42 participated in the study. The researcher, inspired by his insider position as an ex-offender aimed to explore and describe the lived experiences of other ex-offenders who had stopped offending, or who were in the process of disengaging from crime. An interpretive phenomenological approach including three theories of criminal desistance were used to ground the study. Data were collected via semi-structured interviews and analysed thematically. Results showed that the processes of criminal desistance are unique and contextual, particular rather than universal, and that change can be attributed to intra-individual factors facilitated by strong quality social bonds / Psychology / M.A. (Psychology)

Text in English / South Africa has a high level of Crime and thus also has a high level of recidivism. The high rate of crime contributes to overcrowding in prison. The Department of Correctional Services has programmes for the offenders such as rehabilitation, parole, probation, re-entry and reintegration. These programmes are not effective to an extent that they are not changing the offenders’ behaviour. The qualitative aim of this study was to explore recidivism through the application of concepts and theories. The significant impact that rehabilitation, parole, re-entry, probation and reintegration exerted on recidivism cause more problems for the Department Correctional Services. Ineffectiveness of these programmes has a negative impact on the escalation of recidivism. The study revealed that programmes are not effective or adequate and that recidivism is the end-product. The recommendation from the study indicates that Correctional Services should encourage offenders to participate in these programmes. The department should also review policies on these programmes and align them with international standards. The study also recommended that more research needs to be conducted on recidivism in order to understand its impact into the community and Correctional Services. The recommendations on this study indicates that recidivists should have their own specific facilities and offenders that have committed different type of crimes be treated and offered a programme designed for a particular offender and not to use a “one size fits all” approach. / Corrections Management / M.A. (Corrections Management)

The context of this thesis is the numerical simulation of turbulent flows at moderate Reynolds numbers and the improvement of the capabilities of an in-house 3D unsteady and incompressible flow solver called SFELES to simulate such flows.<p>In addition to this abstract, this thesis includes five other chapters.<p><p>The second chapter of this thesis presents the numerical methods implemented in the two CFD solvers used as part of this work, namely SFELES and PHASTA.<p><p>The third chapter concentrates on the implementation of a new library called FlexMG. This library allows the use of various types of iterative solvers preconditioned by algebraic multigrid methods, which require much less memory to solve linear systems than a direct sparse LU solver available in SFELES. Multigrid is an iterative procedure that relies on a series of increasingly coarser approximations of the original 'fine' problem. The underlying concept is the following: low wavenumber errors on fine grids become high wavenumber errors on coarser levels, which can be effectively removed by applying fixed-point methods on coarser levels.<p>Two families of algebraic multigrid preconditioners have been implemented in FlexMG, namely smooth aggregation-type and non-nested finite element-type. Unlike pure gridless multigrid, both of these families use the information contained in the initial fine mesh. A hierarchy of coarse meshes is also needed for the non-nested finite element-type multigrid so that our approaches can be considered as hybrid. Our aggregation-type multigrid is smoothed with either a constant or a linear least square fitting function, whereas the non-nested finite element-type multigrid is already smooth by construction. All these multigrid preconditioners are tested as stand-alone solvers or coupled with a GMRES (Generalized Minimal RESidual) method. After analyzing the accuracy of the solutions obtained with our solvers on a typical test case in fluid mechanics (unsteady flow past a circular cylinder at low Reynolds number), their performance in terms of convergence rate, computational speed and memory consumption is compared with the performance of a direct sparse LU solver as a reference. Finally, the importance of using smooth interpolation operators is also underlined in this work.<p><p>The fourth chapter is devoted to the study of subgrid scale models for the large eddy simulation (LES) of turbulent flows.<p>It is well known that turbulence features a cascade process by which kinetic energy is transferred from the large turbulent scales to the smaller ones. Below a certain size, the smallest structures are dissipated into heat because of the effect of the viscous term in the Navier-Stokes equations.<p>In the classical formulation of LES models, all the resolved scales are used to model the contribution of the unresolved scales. However, most of the energy exchanges between scales are local, which means that the energy of the unresolved scales derives mainly from the energy of the small resolved scales.<p>In this fourth chapter, constant-coefficient-based Smagorinsky and WALE models are considered under different formulations. This includes a classical version of both the Smagorinsky and WALE models and several scale-separation formulations, where the resolved velocity field is filtered in order to separate the small turbulent scales from the large ones. From this separation of turbulent scales, the strain rate tensor and/or the eddy viscosity of the subgrid scale model is computed from the small resolved scales only. One important advantage of these scale-separation models is that the dissipation they introduce through their subgrid scale stress tensor is better controlled compared to their classical version, where all the scales are taken into account without any filtering. More precisely, the filtering operator (based on a top hat filter in this work) allows the decomposition u' = u - ubar, where u is the resolved velocity field (large and small resolved scales), ubar is the filtered velocity field (large resolved scales) and u' is the small resolved scales field. <p>At last, two variational multiscale (VMS) methods are also considered.<p>The philosophy of the variational multiscale methods differs significantly from the philosophy of the scale-separation models. Concretely, the discrete Navier-Stokes equations have to be projected into two disjoint spaces so that a set of equations characterizes the evolution of the large resolved scales of the flow, whereas another set governs the small resolved scales. <p>Once the Navier-Stokes equations have been projected into these two spaces associated with the large and small scales respectively, the variational multiscale method consists in adding an eddy viscosity model to the small scales equations only, leaving the large scales equations unchanged. This projection is obvious in the case of a full spectral discretization of the Navier-Stokes equations, where the evolution of the large and small scales is governed by the equations associated with the low and high wavenumber modes respectively. This projection is more complex to achieve in the context of a finite element discretization. <p>For that purpose, two variational multiscale concepts are examined in this work.<p>The first projector is based on the construction of aggregates, whereas the second projector relies on the implementation of hierarchical linear basis functions.<p>In order to gain some experience in the field of LES modeling, some of the above-mentioned models were implemented first in another code called PHASTA and presented along with SFELES in the second chapter.<p>Finally, the relevance of our models is assessed with the large eddy simulation of a fully developed turbulent channel flow at a low Reynolds number under statistical equilibrium. In addition to the analysis of the mean eddy viscosity computed for all our LES models, comparisons in terms of shear stress, root mean square velocity fluctuation and mean velocity are performed with a fully resolved direct numerical simulation as a reference.<p><p>The fifth chapter of the thesis focuses on the numerical simulation of the 3D turbulent flow over a re-entry Apollo-type capsule at low speed with SFELES. The Reynolds number based on the heat shield is set to Re=10^4 and the angle of attack is set to 180º, that is the heat shield facing the free stream. Only the final stage of the flight is considered in this work, before the splashdown or the landing, so that the incompressibility hypothesis in SFELES is still valid.<p>Two LES models are considered in this chapter, namely a classical and a scale-separation version of the WALE model. Although the capsule geometry is axisymmetric, the flow field in its wake is not and induces unsteady forces and moments acting on the capsule. The characterization of the phenomena occurring in the wake of the capsule and the determination of their main frequencies are essential to ensure the static and dynamic stability during the final stage of the flight. <p>Visualizations by means of 3D isosurfaces and 2D slices of the Q-criterion and the vorticity field confirm the presence of a large meandering recirculation zone characterized by a low Strouhal number, that is St≈0.15.<p>Due to the detachment of the flow at the shoulder of the capsule, a resulting annular shear layer appears. This shear layer is then affected by some Kelvin-Helmholtz instabilities and ends up rolling up, leading to the formation of vortex rings characterized by a high frequency. This vortex shedding depends on the Reynolds number so that a Strouhal number St≈3 is detected at Re=10^4.<p>Finally, the analysis of the force and moment coefficients reveals the existence of a lateral force perpendicular to the streamwise direction in the case of the scale-separation WALE model, which suggests that the wake of the capsule may have some <p>preferential orientations during the vortex shedding. In the case of the classical version of the WALE model, no lateral force has been observed so far so that the mean flow is thought to be still axisymmetric after 100 units of non-dimensional physical time.<p><p>Finally, the last chapter of this work recalls the main conclusions drawn from the previous chapters. / Doctorat en Sciences de l'ingénieur / info:eu-repo/semantics/nonPublished

In contrast to mammals, some fish and amphibians have retained the ability to regenerate complex body structures or organs, such as the limb, the tail, the eye lens or even parts of the heart. One major difference in the response to injury is the appearance of a mesenchymal growth zone or blastema in these regenerative species instead of the scarring seen in mammals. This blastema is thought to largely derive from the dedifferentiation of various functional cell types, such as skeletal muscle, skin and cartilage. In the case of multinucleated skeletal muscle fibres, cell cycle re-entry into S-phase as well as fragmentation into mononucleated progenitors is observed both in vitro and in vivo. In order to identify molecules that initiate dedifferentiation of cells at the wound site in amphibians we have established a cellular assay with a cultured newt myogenic cell line. Using this assay we have found a serum activity that stimulates cell cycle re-entry in differentiated multinucleated newt myotubes. The activity is present in serum of all mammalian species tested so far and, interestingly, thrombin proteolysis amplifies the activity from both serum and plasma. We think this serum factor provides a link between wounding and regeneration and its identification will be a key step in understanding the remarkable differences in wound healing between mammals and amphibians. In the course of this PhD thesis we have characterized the serum factor as a thermo-labile, pH- and proteinase K-sensitive, high molecular weight protein that is resistant to denaturing conditions such as SDS, urea or organic solvents. Surprisingly, under denaturing conditions the activity behaves as a low molecular weight protein that displays charge heterogeneity on isoelectric focusing. Using these characteristics of the serum factor we have performed a systematic investigation of commonly used protein chromatography modes and separation techniques to develop a successful purification procedure. After four column chromatography steps -- cation exchange, hydrophobic interaction, heparin affinity and size exclusion chromatography under denaturing conditions -- we have achieved a 2,000-fold purification starting from a commercially available Crude Bovine Thrombin preparation. This represents about 40,000-fold purification over bovine serum. Silver stained gels of the most purified fractions revealed ten major protein bands. In order to finally identify the cell cycle re-entry factor, we are currently analyzing the purification by quantitative mass spectrometry by correlating the abundance of tryptic peptides with activity in sequential fractions across a chromatography run.

This thesis provides the first rigorous history of the concept of midlife crisis. It highlights the close connections between understandings of the life course and social change. It reverses accounts of popularization by showing how an idea moved from the public sphere into academia. Above all, it uncovers the feminist origins of the concept and places this in a historically little-studied tradition of writing about middle age that rejected the gendered "double standard of aging." Constructions of middle age and life-planning were not always oppressive, but often used for feminist purposes. The idea of midlife crisis became popular in the United States with journalist Gail Sheehy's Passages (1976), a critique of Erik Erikson's male-centered model of ego development and psychoanalytic constructions of gender and identity more generally. Drawing on mid-century notions of middle life as the time of a woman's entry into the public sphere, Sheehy's midlife crisis defined the onset of middle age, for men and women, as the end of traditional gender roles. As dual-earner families replaced the male breadwinner model, Passages circulated widely, read by women and men of different generations, including social scientists. Three psychoanalytic experts-Daniel Levinson, George Vaillant, and Roger Gould-rebutted Sheehy by putting forward a male-only concept of midlife as the end of a man's family obligations; they banned women from reimagining their lives. Though this became the dominant meaning of midlife crisis, it was not universally accepted. Feminist scholars, most famously the psychologist and ethicist Carol Gilligan, drew on women's experiences to challenge the midlife crisis, turning it into a sign of emotional instability, immaturity, and egotism. Resonating with widespread understandings of mental health and social responsibility, and confirmed by large-scale surveys in the late 1990s, this relegated the midlife crisis to a chauvinist cliché. It has remained a contested concept for negotiating the balances between work and life, production and reproduction into the present day.

Research on entrepreneurship focuses on success which ignores the high failure rate of new ventures. Many new ventures fail so how entrepreneurs deal with it when their venture fails? Successful entrepreneurs praising the advantages of failure as a valuable teacher. The result of failure is regularly filled with economic, social, psychological, and physical health disorder. The aim of this research is to assessment venture failure experiences for entrepreneurs, from the instant result through to recovery for coping with entrepreneurial failure and exit for impact of the closed venture. In this research, aspects of life affected by entrepreneurial failure examine economically, socially and psychologically in highlighting factors that may influence the amount of costs of failure. Next, the research describes how entrepreneurs learn from failure. It presents on the outcomes of venture failure, including coping with failure and recovery together with cognitive and behavioral outcomes. The main objective of the research study is to understand the failure from entrepreneurs who have experienced it and also to make a theoretical framework of failure based on entrepreneurial venture failure experiences. Every entrepreneur starts up a venture with high expectations of achieving success. Failure can be emotionally disturbing, devastating, painful, distressing and costly for the entrepreneur who may have to aspect the stigma of failure and the loss of reputation. The entrepreneur can get involved in grief, heartache, anxiety, depression, shame, rejection and discouragement (Politis &amp; Gabrielsson, 2009). The purpose of the research is to investigate how entrepreneurs realize and react to venture failure. Moreover, entrepreneurs are looking for positive aspects of failure as enhancing experiences that help their coping with entrepreneurial failure, learning from failure, the willingness to begin a new venture and also trigger changes in upcoming decision-making. The purpose of the research is to take a view of the existed experience of failure, taking into consideration impact from the entrepreneurship. / Forskning om entreprenörskap fokuserar på framgång som ignorerar den höga felfrekvensen av nya företag. Många nya företag misslyckas så hur entreprenörer hantera det när deras företag misslyckas? Framgångsrika entreprenörer prisar fördelarna med misslyckande som en värdefull lärare. Resultatet av misslyckande regelbundet fylld med ekonomiska, sociala, psykologiska och fysiska hälsoproblem. Syftet med denna forskning är att bedöma företagets misslyckande upplevelser för företagare, från det ögonblick resultatet genom att återhämtningen för att hantera företagande fel och avsluta för påverkan av den slutna företag. I denna forskning aspekter av livet som påverkas av entreprenörs fel undersöka ekonomiskt, socialt och psykologiskt att belysa faktorer som kan påverka mängden av kostnaderna för ett misslyckande. Därefter beskriver forskningen hur entreprenörer lära av misslyckanden. Den presenterar på resultaten av företagets misslyckande, inklusive hantera fel och återhämtning tillsammans med kognitiva och beteendemässiga utfall.

Abstract in English, Venda and Tsonga / Released prisoners in Kenya have a 75% likelihood of committing another crime and a 50% probability of going to jail two years after their discharge from prison custody. From the trend of recidivism in Kenya, there are a staggeringly high number of offenders being incarcerated and eventually released back to the community, and the high risk of re-arrest and reincarceration is a concern for policymakers, criminologists and correctional managers. This study examined the influence of offender characteristics, offender reintegration and community perception and attitude regarding recidivism in Kakamega County, Kenya. The study adopted a survey research design. Findings reveal a statistically significant relationship between offender characteristics and recidivism. In addition, offender reintegration and community perception and attitude towards offenders greatly influence recidivism. From the study, it is recommended that the government provide correctional officers with the required resources to use the actuarial risk assessment model. The model is applied to the released offenders to predict the future probability of recidivism. In addition, it is recommended that the government and the various correctional stakeholders come up with an integrated approach that specifically targets successful re-entry of offenders upon release from prison. Finally, it is recommended that the government develop programmes targeting awareness of the community members to desist from stigmatising ex-offenders. / Vhafariwa vho vhofhololwaho ngei Kenya vha na khonadzeo ya 75% ya u ita vhuṅwe vhutshinyi na 50% ya khonadzeo ya u ya dzhele miṅwaha mivhili nga murahu ha u bva tshiṱokisini. U bva kha nzulele ya u tshinya fhafhu ngei Kenya, hu na u mangadza huhulwane ha tshivhalo tshi re nṱha tsha vhatshinyi vha re dzhele vhane vha fhedzisela vho vhofhololelwa murahu kha tshitshavha, khohakhombo khulwane ya u dovha u farwa hafhu na u valelwa hafhu dzhele zwi vhilaedzisa vhabveledzi vha mbekanyamaitele, vhaḓivhi vha zwa vhutshinyi na vhalanguli vha vhululamisi. Ngudo i ṱola ṱhuṱhuwedzo ya zwiṱaluli zwa mutshinyi, mbuedzedzo ya mutshinyi na zwine tshitshavha tsha mudzhiisa zwone na vhuvha zwi tshi ya kha u tshinya hafhu kha Dzingu ḽa Kakamega, Kenya. Ngudo yo shumisa tsedzuluso ya pulane yo dzudzanywaho ya ṱhoḓisiso. Mawanwa o dzumbulula tshivhalo tsha vhushaka ha ndeme vhukati ha zwiṱaluli zwa mutshinyi na u tshinya hafhu. U ḓadzisa khazwenezwo, mbuedzedzo y mutshinyi na zwine tshitshavha tsha mudzhiisa zwone na vhuvha zwi tshi ya kha vhatshinyi zwi ṱuṱuwedza nga huhulu u tshinya hafhu. U bva kha ngudo, hu themendelwa uri muvhuso u ṋetshedze vhaofisiri vha ndulamiso zwiko zwine zwa ṱoḓea u shumisa tshiedziso tsha u ṱola khohakhombo tsha vhukuma. Tshiedziso tshi shumiswa u vhofholola vhafariwa u humbulela khonadzeo ya vhumatshelo ya u tshinyahafhu. U ḓadzisa kha zwenezwo, hu themendelwa uri muvhuso na vhadzhiamukovhe vho fhambanaho vha vhululamisi vha ḓe na kuitele kwo ṱanganelaho kwo livhiswaho tshoṱhe kha u dzhena hafhu ha vhatshinyi musi vha tshi tou bva dzhele. Tsha u fhedzisela, hu themendelwa uri muvhuso u bveledzise mbekanyamushumo dzo livhiswaho kha u tsivhudza miraḓo ya tshitshavha u sa i sa phanḓa na u fara vhatshinyi vha kale nga nḓila i si yavhuḓi. / Vakhotsiwa lava tshunxiwaka eKenya va na 75% wa ntolovelo wa leswo va nga endla vugevenga byin’wana na 50% ta nkoteko wa ku ya ejele nakambe endzhaku ka ku tshunxiwa ka vona ejele. Kusuka eka ntolovelo wa ku vuyelela ku endla vugevenga nakambe eKenya, ku na nhlayo ya le henhla hindlela yo hlamarisa ya vaonhi lava va nga eku pfaleriweni ekhotsweni naswona endzhaku ka swona va tshunxiwa ku vuyela eka tindhawu ta vaaki, naswona ku na nxungeto wa le henhla wa ku khomiwa nakambe na ku pfaleriwa ekhotsweni nakambe hi vuntshwa, leswi i xivileriso eka vaendlatipholisi, vativi hi swa vugevenga na vafambisi va makhotso. Ndzavisisadyondzo lowu wu kambele nhlohlotelo wa swihlawulekisi swa vaonhi, ku hlanganisa nakambe vaonhi na vanhu eka tindhawu ta vaakandhawu na mavonelo na maehleketelo ya vaakandhawu hi mayelana na ku vuyelela ka swigevenga ku endla vugevenga eka Xifundza xa Kakamega, eKenya. Ndzavisisadyondzo lowu wu tirhise dizayini ya ndzavisiso wa mbalango ku nga survey research design. Leswi kumiweke swi paluxe vuxaka bya le henhla hindlela ya tinhlayonhlayo exikarhi ka swihlawulekisi swa vaonhi na vuyelelo bya ku endla vugevenga nakambe. Na le henhla ka sweswo, ku hlanganisa hi vuntshwa vaonhi na vaakandhawu nakambe hi vuntshwa na mavonelo na maehleketelo ya vaakandhawu eka vaonhi swi hlohlotela swinene vuyelelo bya ku endla vugevenga nakambe. Kusuka eka ndzavisisadyondzo, ku bumabumeriwa leswaku mfumo wu nyika vaofisiri va makhotso swipfuno leswi lavekaka ku tirhisa modlolo wa nhlahluvo wa nxungeto wa xiakichuwari ku nga actuarial risk assessment model. Modlolo lowu wu tirhisiwa eka vaonhi lava tshunxiweke ku vhumba nkoteko wa nkarhi lowu taka wa vuyelelo bya vugevenga nakambe. Ku tlhela nakambe ku bumabumeriwa leswaku mfumo na vakhomaxiave va makhotso vo hambanahambana va va na endlelo leri hlanganisiweke leri kongomisiwaka ngopfungopfu ku humeleka kahle ka ku vuyela ka vaonhi eka tindhawu ta vaaki loko vaonhi va tshunxiwa ekhotsweni. Xo hetelela, ku bumabumeriwa leswaku mfumo wu endla minongonoko leyi kongomisiweke eka vulemukisi bya vaakandhawu leswaku va tshika ku nyenyemuka khale ka vaonhi lava a va khotsiwile. / Corrections Management / Ph. D. (Criminal Justice)