In dieser Arbeit wird die Berechnung der farbführenden Zweischleifen-QCD-Korrekturen für die Top-Quark-Paarproduktion mit einem zusätzlichen Jet an einem Lepton-Collider präsentiert. Das Matrixelement wird in Vektor- und Axial-Vektorströme zerlegt und die Ströme werden weiter in Dirac-Spinorstrukturen und Formfaktoren zerlegt. Die Formfaktoren werden mit Projektoren extrahiert. Die auftretenden Feynmanintegrale werden mittels IBP-Identitäten und Dimensionsverschiebungstransformationen durch eine Basis quasi-finiter Masterintegrale in 6−2ϵ Dimensionen ausgedrückt. Die Mehrheit der Feynmanintegrale gehört zu einer Doppelbox-Integralfamilie. Die Berechnung der Masterintegrale erfolgt durch numerisches Lösen von Differentialgleichungen in kinematischen Invarianten. Asymptotische Reihenentwicklungen der Masterintegrale in der Top-Quarkmasse werden verwendet, um die Anfangsbedingungen für die numerischen Lösungen der Differentialgleichungen zu bestimmen. Die führenden Terme dieser Entwicklung werden mit der Expansion-by-Regions-Methode berechnet. Höhere Reihenkoeffizienten werden durch die Anwendung einer Differentialgleichung auf einen Ansatz für die Reihenentwicklung bestimmt. Die renormierten Formfaktoren und die farbführende Zweischleifenamplitude werden an einem Referenzphasenraumpunkt zu hoher Präzision numerisch ausgewertet. Die Resultate werden mit elektroschwachen Ward-Identitäten und durch numerische Vergleiche der IR-Singularitäten mit der erwarteten Singularitätsstruktur überprüft. / In this work, the calculation of the leading-colour two-loop QCD corrections for top-quark pair production with an additional jet at a lepton collider is presented. The matrix element is decomposed into vector and axial-vector currents and the currents are further decomposed into Dirac spinor structures and form factors. The form factors are extracted with projectors. The Feynman integrals are reduced to a quasi-finite basis in 6 − 2ϵ dimensions using IBP identities and dimension-shift transformations. The majority of master integrals belong to a double-box integral family. The master integrals are computed by numerically solving systems of differential equations in the kinematic invariants. Asymptotic expansions of the master integrals in the top-quark mass variable are used to calculate initial conditions for the numerical differential equation solutions. The leading terms of the expansion are obtained with the expansion by regions and the higher orders are calculated by solving a system of equations obtained from applying the differential equation onto an ansatz of the expansion. The renormalized form factors and the leading-colour two-loop amplitude are evaluated numerically to high precision at a benchmark phase space point. The results are cross-checked with electroweak Ward identities and by numerically comparing the IR singularities with the expected singularity structure.

Text in English / Given the high rates of male homicides, victimisation and the perpetration of violence by men in South Africa, the prevention of interpersonal violence among males constitutes a major public health priority. The lack of effective strategies to address the onset and effects of exposure to violence foregrounds the need for innovative strategies to address this problem in South Africa. Within this context, this doctoral study’s primary research objective was to evaluate the processes and steps used to plan, design and develop a community-based violence prevention intervention that mobilised spiritual capacity and religious assets to promote positive forms of masculinity, and peace and safety. This doctoral research was part of a broader study entitled, ‘Spiritual Capacity and Religious Assets for Transforming Community Health by Mobilising Males for Peace and Safety’ (SCRATCHMAPS), which aimed to identify and mobilise spiritual capacity and religious assets, in particular communities in South Africa and the USA, in order to address interpersonal violence. This study was framed by a critical public health lens, and was guided by a Community-based Participatory Research (CBPR) orientation and community engagement strategy throughout every step of the development of the intervention and the initial evaluation of the manual development process. The overall research design was a participatory process evaluation. Methods used for this process evaluation included community asset mapping, surveys, focus group discussions, research-based workshops, diary reflections, a photo-documentary, meeting minutes, process notes and participatory observations. The analysis of the multiple sets of data was conducted appropriately, relevant to the particular data collection methods pursued and the demands of both qualitative and quantitative methods of analysis. Findings from this study confirm the utility and efficacy of using a critical public health framework enacted through CBPR for developing an intervention that addresses the complexity of violence. The results further demonstrated that a strength or asset-based, gender-sensitive approach, with men working alongside women, is conducive to promoting positive forms of masculinity to create safety and peace. / Psychology / Ph. D. (Psychology)

Cette thèse porte sur le calcul des corrections radiatives supersymétriques pour des processus entrants dans le calcul de la densité relique de matière noire, dans le MSSM et le scénario cosmologique standard, ainsi que sur l'influence du choix du schéma de renormalisation du secteur des neutralinos/charginos à partir de la mesure de trois masses physiques. Cette étude a été faite à l'aide d'un programme automatique de calcul à une boucle d'observables physiques dans le MSSM, appelé SloopS. Pour le calcul de la densité relique nous nous sommes penchés sur des scénarios où le candidat supersymétrique le plus étudié, le neutralino, se désintégrait en majoritairement en bosons de jauge. Nous avons couvert les cas où sa masse était de l'ordre de quelques centaines de GeV jusqu'à 2 TeV. Cela a nécessité la prise en compte complète des corrections électrofaibles et fortes, impliquées dans des processus sous-dominants impliquant des quarks. Dans le cas des neutralinos très lourds deux effets importants ont été mis à jour : les amplifications de type Sommerfeld dues aux bosons de jauge massifs et peut-être plus important encore des corrections de type Sudakov.

Text in English / Given the high rates of male homicides, victimisation and the perpetration of violence by men in South Africa, the prevention of interpersonal violence among males constitutes a major public health priority. The lack of effective strategies to address the onset and effects of exposure to violence foregrounds the need for innovative strategies to address this problem in South Africa. Within this context, this doctoral study’s primary research objective was to evaluate the processes and steps used to plan, design and develop a community-based violence prevention intervention that mobilised spiritual capacity and religious assets to promote positive forms of masculinity, and peace and safety. This doctoral research was part of a broader study entitled, ‘Spiritual Capacity and Religious Assets for Transforming Community Health by Mobilising Males for Peace and Safety’ (SCRATCHMAPS), which aimed to identify and mobilise spiritual capacity and religious assets, in particular communities in South Africa and the USA, in order to address interpersonal violence. This study was framed by a critical public health lens, and was guided by a Community-based Participatory Research (CBPR) orientation and community engagement strategy throughout every step of the development of the intervention and the initial evaluation of the manual development process. The overall research design was a participatory process evaluation. Methods used for this process evaluation included community asset mapping, surveys, focus group discussions, research-based workshops, diary reflections, a photo-documentary, meeting minutes, process notes and participatory observations. The analysis of the multiple sets of data was conducted appropriately, relevant to the particular data collection methods pursued and the demands of both qualitative and quantitative methods of analysis. Findings from this study confirm the utility and efficacy of using a critical public health framework enacted through CBPR for developing an intervention that addresses the complexity of violence. The results further demonstrated that a strength or asset-based, gender-sensitive approach, with men working alongside women, is conducive to promoting positive forms of masculinity to create safety and peace. / Psychology / Ph. D. (Psychology)

(in English): The work in this diploma contains an analysis of speech accuracy and fluency of Russian speaking and English speaking students of Czech language, based on case studies. For these case studies two Russian speaking students and two English speaking students were chosen to take part. The results were compared to the results of one native Czech speaker. The accuracy and fluency analysis was carried out based on the language principles of Rod Ellis. Within the accuracy analysis, the number of error free clauses and the average number of mistakes per one hundred words were measured. Accuracy of speech is examined through concrete grammatical phenomena like the usage of reflexive particle se/si and the usage of the verb to be in the past tense. The work in this diploma also considers the ability of analysed speakers to switch between language codes and to distinguish features of formal and spoken Czech language (spoken language in informal situations). The fluency of speech is studied based on the speech rate of all analysed speakers by counting the number of syllables per one hundred words. Subsequently, the number of false starts, repetition of words or phrases, the frequency of usage of parasite words and hesitation sounds were also examined. One of the diploma hypothesis is the statement...

Abstracts in English, Zulu and Shona / The purpose of the study was to examine the role of educators in enhancing the social wellness on juvenile offenders in Zimbabwe. The theoretical framework that underpinned the study was the Wellness Theory of Bill Hettler (1980) used as the lens to explore and generate understanding on how educators enhance the social wellness of juvenile offenders. The study was located within an interpretive paradigm. Qualitative research design and case study approach were used in this study. Moreover, purposive sampling approach was used to select the samples of educators and juvenile learners who responded to the qualitative questionnaires and those who participated in the interviews, which were used for data collection. The research had five educators and ten juvenile offenders who participated at one of the correctional centres in Zimbabwe based on availability and willingness. In addition, the researcher adhered to ethical standards in terms of gaining permission for access, issues of informed consent, voluntary participation, and confidentiality. Data were gathered by means of self-administered qualitative questionnaires with open-ended questions, interviews and observation. The research identified that no research has been carried out in Zimbabwe’s correctional centres to thoroughly explore the role of educators in the enhancement of the social wellness of juvenile offenders. The findings firstly revealed that education promoted the social wellness and resulted in positive behavioural change among juvenile offenders at the correctional centre. Secondly, education promoted the development of various technical skills in juvenile learners, such as agriculture and welding, as well as interpersonal skills such as anger management, respect, problem solving, and communication. The findings revealed that some juvenile offenders developed entrepreneurship skills. Some of the juveniles were making doormats, fence making and plaiting extensions. One of the juveniles had a unique skill in plaiting and braiding. He taught his friends, and now they are plaiting extensions and selling them. Thirdly, the findings revealed that educators are essential in the enhancement of the social wellness of juvenile offenders in an effort to reduce recidivism and facilitation of good and smooth social reintegration into mainstream society after incarceration. The challenges faced by the educators included limited resources and inadequate training as specialists who teach juvenile offenders. It was recommended that educators be empowered through in-service training to enable them to facilitate the capacitation of juvenile learners’ social wellness. / Ucwaningo lolu luphenye ngendima yothisha ekuthuthukisweni kwenhlalonhle yabantu abahlukumezanayo abasebasha eZimbabwe. Lolu cwaningo lugqamisa imfundo yasejele njengengxenye ebalulekile yenqubo yokuvuselela kanye nentuthuko yezoni zabasha. Uhlaka lwethiyori oluqondise lolu cwaningo luyimodeli yokuphila kahle ekaBill Hettler futhi ucwaningo lutholwa phakathi kwomongo wendaba ohumushekayo. Kusetjenziswe ukuhlahlela okuphathelene nesimo kanye nokuhlaziya okubhekane nesimo esisodwa noma nomuntu oyedwa isikhathi esithile okwenziwe esikhungweni esisodwa sokuLungiswa eZimbabwe. Ngaphezu kwalokho, isampula elinenhloso lalisetshenziselwa ukukhetha isampula eyayiqukethe othisha abahlanu nabahlukumezi abasebasha abayishumi. Leli sampula labantu lihanganyele ngokutholakala kanye nokuvuma kwayo. Umcwaningi wenze izinto ngenkambo elungileyo ngocela imvume yokungena endaweni, ukuthola imvume ebhaliwe ebantwini abayingxenye yocwaningo, ukuhlanganyelwa ngokuzikhethela, nokugcina umbiko ngokwemfihlo. Idatha iqoqwe ngohlu lwemibuzo evulekile, izingxoxo kanye nokubukwa. Lokhu okutholiwe kubonisa ukuthi alukho ucwaningo oluyenziwe emajele aseZimbabwe ukuhlola indima yothisha ekuthuthukisweni kwenhlalonhle yabantu abahlukumezanayo abasebasha. Ucwaningo lubonisa ukuthi, okokuqala, imfundo ithuthukisa inhlalonhle yomphakathi, futhi iholele ekuguqukeni kokuziphatha okuhle kubahlukumezi abasebasha. Ngaphezu kwalokho, imfundo ithuthukise amakhono ahlukahlukene wezobuchwepheshe, njengezolimo, ukushisela, namakhono wokusebenzisana nabantu njengokuphatha intukuthelo, inhlonipho, ukuxazulula izinkinga nokukhulumisana. Okunye okutholakele ukuthi abanye abahlulumezi bathuthukise ikhono lokuqala ibhizinisi elizimele. Abanye bayenze izisulelo zasemnyango, ukuyenza ucingo, nokuluka. Omunye wabahlukumezi nokhono olukhethekile lokuqhina izinwele. Wafundisa abangani bakhe, kanti futhi manje baqhina imifakelo yezinwele, bese bayazithengisa. Okwesithathu, ucwaningo lubonisa ukuthi abothisha babalulekile ekuthuthukisweni kwenhlalonhle yabantu abahlukumezanayo abasebasha njengendlela yokugwema ukona ukophindaphindiwe kwabahlukumezi, kanye nokuthuthukisa ukubuyela kwabo ephakathini okukahle emva kwokuboshwa. Ezinye izinselelo ezibhekane nabothisa izinsizakusebenza ezilinganiselwe nokuqeqeshwa okunganele njengongoti abafundisa iziboshwa zentsha. Kululekwe ukuthi othisha banikezwe amandla ngokuqeqeshwa basasebenza okuzokwenza ukuthi balungiselele ukhlomisa kwenhlalonhle yabantu abahlukumezanayo abasebasha. / Chinangwa chetsvakurudzo ino chaiva chekuongorora basa revarairidzi mukuvandudza ukama nemagariro akanaka munharaunda evapari vemhosva vechiki muZimbabwe. Donzvo rakateverwa netsvakurudzo ino raiva ramafungiro ava Bill Hetter (1980) anotaridza zveukama namagariro akanaka ayo akashandiswa semuono wekuferefeta nekubudisa manzwisisiro angavapo pakuti varairidzi vangavandudza sei ukama namagariro akanaka munharaunda evapari vemhosva vechidiki. Tsvakurudzo iyi yakazendama pamafungiro anosimbisa madudzirirwo akanaka epfungwa. Mutsvakurudzi akashandisa maonere anokoshesa kunzwisisa mashoko avanhu munharaunda, maitiro avo nemaonere avo. Mutsvakurudzo iyi, umboo hwakadzika hwakatorwa muzviitiko zvikuru zvakamiririra zviitiko zvakada kufanana nazvo. Pamusoro pazvo, avo vakasharwa kuti vave vapi vepfungwa vakasarudzwa zvichienderana nezvavakambosangana nazvo uyewo zvavanoziva pamusoro pedambudziko riri kuferefetwa. Vapi vepfungwa ava vaisanganisira varairidzi uye vadzidzi vechidiki vemazera epakati nepakati. Ava vakapindura mibvunzo yaiva yakagadzirwa pamagwaro avaizadzisa uye vamwe vakaita zvekupa pfungwa dzavo kupfurikidza nehurukuro dzakarongwa nemutsvakurudzi. Pfungwa dzakabuda mutsvakurudzo iyi dzakabuda kubva kuvarairidzi vashanu nevapari vemhosva vechidiki gumi avo vakasarudzwa kubva munzvimbo dzinochengeterwa vakapara mhosva nechinangwa chekuvavandudza mararamiro avo muZimbabwe zvichienderana neuvepo hwavo uye kuzvisarudzira zvakasunguka kupinda mutsvakurudzo. Mutsvakurudzi akatevera mitemo inomusungira kuremekedza kodzero dzevanhu, uye nzvimbo zvinosanganisira kuwana mvumo yekupinda munzvimbo, kupa vapi vepfungwa ruzivo rwakakwana pamusoro pechinangwa chetsvakurudzo, kupa vapi vepfungwa sununguko yekupinda mutsvakurudzo pasina kumanidzwa uyewo mutsvakurudzi akavimbisa kubata hana nekusashambadzira mazita avanhu vakapinda mutsvakurudzo. Pfungwa dzakaunganidzwa kuchishandiswa magwaro emibvunzo akapiwa kunevamwe vevakapinda mutsvakurudzo. Mutsvakurudzi pachezvake ndiye akagovera magwaro aya kuvapi vepfungwa. Mibvunzo yaiva mumagwaro aya yaipa vapi vepfungwa mukana wekurondedzera maonero avo vakasununguka. Dzimwe nzira dzakashandiswa dzaisanganisira hurukuro pakati pemupi wepfungwa nemutsvakurudzi uye kuongorora kupfurikidza nekucherechedza zvakadzika zviitiko. Tsvakurudzo iyi yakawana kuti hapana tsvakurudzo yati yamboitwa inoongorora basa revarairidzi mukuvandudza ukama nemagaririo akanaka munharaunda evana vemazero epakati nepakati munzvimbo dzinochendeterwa vapari vemhosva nechinangwa chekuvandudza magariro avo akanaka munharaunda. Chekutanga, kwakaonekwa kuti dzidzo inosimudzira ukama nemagariro akanaka munharaunda zvinozoita kuti pave nekushanduka kwakanaka kweunhu hwevapari vemhosva vechidiki vezera repakati nepakati. Chepiri, zvakabuda kuti dzidzo inosimudzira kuvandudzwa kweunyanzvi hwekurima, kupisira simbi, kudyidzana, kuzvidzora pahasha, ruremekedzo, kugadzirisa matambudziko uye kutaurirana. Zvakabuda mutsvakurudzo zvinotaridza kuti vamwe vapari vemhosva vechidiki vakavandudza unyanzvi hwekutanga mibato inovandudza upfumi. Vamwe vechidiki ava vaigadzira zvidhava zvepamikova, mafenzi uye kuruka kwamazuva ano. Umwe wevechidiki ava akataridza unyanzvi hwepamusoro hwekuruka nekukosha bvudzi remvere mumusoro. Akadzidzisa vamwe vake avo vave mubasa rekuruka nekukosha bvudzi remvere vachitengesa. Chetatu, zvakaonekwa kuti varairidzi vakakosha pakuvandudza ukama nemagariro akanaka evadiki vezera rekapati nepakati munharaunda nechinangwa chekudzikisa kupariwazve kwemhosva naavo vakasimbopara mhosva uye kuona kuti kupinda nekukwana zvakare munharaunda kwevakambopara mhosva kwaitwa zvakanaka pasina zvigozhero. Matambudziko anosanganikwa nawo navarairidzi anosanganisira kushaikwa kwezvishandiso uye kushaikwa kwemukana wekudzidza unyanzvi hwakakwana hwekudzidzisa vapari vemhosva vechidiki vezera repakati nepakati. Mutsvakurudzi akapa rairo yekuti varairidzi vapiwe unyanzvi kupfurikidza nekudzidziswa vari pamabasa avo zvingaite kuti vagone kubetsera vechidiki vemazera epakati nepakati ukama nemagarire akanaka munharaunda. / Psychology of Education / M. Ed. (Psychology of Education)

There are approximately 5 million mentally ill detainees across the globe and a further 1 million who suffer from a severe mental illness. Various research has shown that the prevalence of mental illness within the corrections system is more substantive than that of the general population. On average, there is an upsurge by 1 million mentally ill detainees globally per year. Approximately all detainees detained in a correctional facility encounter depression or stress symptoms, however low rates of identification and treatment prevail. Further to this, the quality of the treatment provided to mentally ill offenders is questionable. The aim of the research study is to explore the prevalence of mental illness amongst detainees in South Africa, Nigeria, Germany, and the United States of America. The study investigates the availability of legislation in all four countries using the various international guidelines as a benchmark, the provisioning of rehabilitation programmes, and the challenges in providing rehabilitation, mental health care, and treatment to the mentally ill. Furthermore, the study sets out to ascertain whether the treatment and conditions in detention facilities meet international standards. Whilst considering that not all mentally ill offenders will need specialist psychiatric treatment, differing levels of care should be available on a continuous basis by personnel who are adequately proficient in reducing mental harm and in promoting mental health among offenders. Recommendations include the need to conduct wider-scale national studies to make for easier comparisons and for benchmarking purposes. The availability of mental health legislation in itself is not a panacea for reducing mental health illness, but having to put this into practice is of paramount importance. The corrections system is at the end of the value chain and does not have a choice of closing their doors to offenders. They therefore need to partner with various government departments (criminal justice system, social systems, education systems, and community structures amongst others), to find an integration point to share knowledge and insight into the challenges facing corrections and for the Criminal Justice System to acknowledge that severely mentally ill individuals should never be sent to corrections. / Daar is ongeveer 5 miljoen sielsieke aangehoudenes wêreldwyd en ʼn verdere 1 miljoen wat aan ʼn ernstige geestesversteuring ly. Navorsing toon dat die voorkoms van geestesversteuring in die korrektiewe stelsel meer substantief as by die algemene bevolking is. Daar is jaarliks ʼn gemiddelde styging van 1 miljoen sielsieke aangehoudenes wêreldwyd. Feitlik alle aangehoudenes in ʼn korrektiewe fasiliteit ervaar simptome van depressie of stres, maar die syfers ten opsigte van identifisering en behandeling is laag. Die gehalte van die behandeling wat sielsieke oortreders ontvang, is boonop twyfelagtig. Die oogmerk van hierdie navorsing was om die voorkoms van geestesversteuring onder aangehoudenes in Suid-Afrika, Nigerië, Duitsland en die Verenigde State van Amerika te ondersoek. Die studie het ondersoek ingestel na die beskikbaarheid van wetgewing in al vier die lande, met behulp van die verskillende internasionale riglyne as ʼn maatstaf, die voorsiening van rehabilitasieprogramme en die uitdagings wat met die voorsiening van rehabilitasie, geestesgesondheidsorg en behandeling van die geestesiekes gepaardgaan. Die studie het ook ten doel gehad om te bepaal of die behandeling en toestande in aanhoudingsfasiliteite aan internasionale standaarde voldoen. Met inagneming daarvan dat nie alle sielsieke gevangenes spesialis- psigiatriese behandeling benodig nie, moet verskillende vlakke van sorg deurlopend beskikbaar gestel word deur bekwame personeel wat oor die vermoë beskik om geesteskade te verminder en om gevangenes se geestesgesondheid te bevorder. Aanbevelings sluit die behoefte in om studies op ʼn groter skaal landswyd uit te voer vir doeleindes van makliker vergelykings en vir normstelling. Hoewel die beskikbaarheid van wetgewing oor geestesgesondheid nie opsigself ʼn wondermiddel is vir die vermindering van geestesversteuring nie, is dit uiters noodsaaklik dat die wetgewing in plek moet wees. Die korrektiewe stelsel is aan die einde van die waardeketting, dus is dit nie ʼn opsie om hul deure vir oortreders te sluit nie. Hulle moet dus met verskeie staatsdepartemente (onder andere, strafregsplegingstelsel, maatskaplike stelsels, opvoedingstelsels en gemeenskapstrukture) saamspan om ʼn integrasiepunt te vind om kennis en insig rakende die uitdagings wat die korrektiewe stelsel in die gesig staar te deel, en sodat die strafregsplegingstelsel sal erken dat individue met ernstige geestesversteurings nooit na korrektiewe fasiliteite gestuur moet word nie. / Kukhona abantu abacishe babengu 5 miliyoni abagula ngengqondo abavalelwe kuwo wonke umhlaba, kanti kukhona abanye abangu 1 miliyoni abahlushwa yisifo sengqondo. Ucwaningo lukhombise ukuthi ubukhona besifo sengqondo kwinqubo yezamajele bukhulu kakhulu ukudlula kwisizwe sonkana ngokunabile. Ngokwesilingniso, kukhona ukwenyuka kwabantu abagula ngengqondo abavalelwe abangu 1 miliyoni kuwo wonke umhlaba ngonyaka. Cishe bonke abantu abavalelwe ezindawo zamajele babanokuxineka kwengqondo noma izimpawu zingcindezi, kodwa izinga lokuphawulwa kwabo kanye nokuthola ukwelashwa liphansi. Kanti futhi okunye, iqophelo lokwelashwa elihlinzekwa abantu abonile abagula ngengqondo alilihle. Inhloso yalesi sifundo socwaningo, bekuwukuphenya ngobukhona bokugula ngengqondo kubantu abavalelwe eNingizimu Afrika, eNigeria, eGermany nase-United States of America. Ucwaningo luphenyisise ngobukhona bemithetho kuwo womane amazwe ngokusebenzisa imikhombandlela kazwelonke njenge-benchmark, ukuhlinzekwa kwezinhlelo zokwelapha kanye nezinselele ezikhona ngokuhlinzeka ngokwelapha, unakekelo lwezempilo yengqondo kanye nokwelashwa kwabagula ngengqondo. Kanti futhi okunye, ucwaningo belufuna ukuqinisekisa ukuthi ngabe ukwelashwa nezimo ezikhona ezindaweni zokuvalelwa emajele kuhlangabezana namazinga amazwe omhlaba. Ngisho noma kubonelelwa ukuthi akuyibo bonke ababoshiwe abagula ngengqondo abadinga ukwelashwa ngokwengqondo kwezinga le-psychiatric, kodwa amazinga ehlukene onakekelo, kumele atholakale ngokuqhubekela phambili okunikezwa ngabantu abanolwazi nekhono ngokufanele ekuphunguleni ukulimala kwengqondo kanye nokuqhubekisela phambili impilo yezengqondo kwababoshiwe Izincomo zibandakanya isidingo sokwenza ucwaningo olunabile kumazwe ukwenzela ukuthi kubelula ukuqhathanisa kanye nenhloso yokwenza i-benchmarking. Ubukhona bemithetho yonakekelo lwempilo yengqondo akusona isixazululo sakho konke ngokuphungula ukugula ngengqondo, kodwa ukuba nemithetho esebenzayo kubaluleke kakhulu. Inqubo yezamajele isekugcineni, kanti ayinalo ukhetho lokuvala iminyango kubantu ababoshiwe. Ngakho-ke izikhungo zababoshiwe kumele zisebenzisane neminyango ehlukene kahulumeni (inqubo yezobulingiswa yamajele, izinqubo zenhlalakahle yabantu, izinqubo zemfundo kanye nezakhiwo zemiphakathi, phakathi kokunye) ukuthola indawo ehlangene yokwabelana ngolwazi mayelana nezinselele amajele abhekane nazo kanye nenqubo yezobulungisa yamajele ukwamukela ukuthi abantu abagula kakhulu ngengqondo akumele bathunyelwe emajele. / Go na le bagolegwa ba ka bago 5 milione bao ba lwalago ka monaganong lefaseng ka bophara le ba bangwe ba 1 milione ba ba nago ba lwalago kudu ka monaganong. Dinyakisiso di bontshitse gore go ata ga malwetsi a monagano ka gare ga tshepediso ya ditshokollo go bohlokwa kudu go feta ka gare ga setshaba ka kakaretso. Ka kakaretso, go na le koketsego ya bagolegwa bao ba lwalago ka monaganong ba 1 milione lefaseng ka bophara ka ngwaga. Ba e ka bago bagolegwa ka moka bao ba golegilwego lefelong la tshokollo ba itemogela kgatelelo ya monagano goba dika tsa kgatelelo, eupsa dikelo tsa boitshupo le boitshwaro le kalafo di fase. Go feta mo, boleng bja kalafo ye e fiwago basenyi ba ba lwalago ka monaganong bo a belaetsa. Maikemisetso a dinyakisiso tse e be e le go utolla go ata ga bolwetsi bja monagano gare ga bagolegwa ka Afrika Borwa, Nigeria, Germany le United States of America. Dinyakisiso di nyakisisitse go hwetsagala ga melao dinageng ka moka tse nne go somiswa ditlhahli tsa go fapafapana tsa boditshabatshaba bjalo ka motheo, kabelo ya mananeo a tsosoloso le ditlhohlo tsa go abela tshokollo, tlhokomelo ya maphelo a monagano le kalafo go bao ba lwalago ka monaganong. Go feta moo, dinyakisiso di ile tsa ikemisetsa go netefatsa gore kalafo le maemo a dikgolego a fihlelela maemo a boditshabatshaba. Ge re ntse re nagana gore ga se bagolegwa fela ka moka bao ba lwalago ka monaganong ba tla hloka kalafo ye e kgethegilelego ya malwetsi a monagano, tlhokomelo ye e fapanego e swanetse go hwetsagala ka mo go tswelago pele ke bahlankedi ba ba nago le bokgoni bjo bo lekanego bja go fokotsa dikotsi tsa monagano le go tswetsa pele maphelo a monagano gare ga bagolegwa. Ditigelo di akaretsa tlhokego ya go dira dinyakisiso tse di tseneletsego tsa setshaba go dira dipapiso tse bonolo le bakeng sa merero ya go bea maemo. Go hwetsagala ga molao wa maphelo a monagano ka bowona ga se pheko ya go fokotsa malwetsi a mongano, eupsa go somisa molao wo ke selo se bohlokwa kudu. Tshepediso ya ditshokollo e mafelelong a tatelano ya tshepediso gomme ga e na kgetho ya go tswalelela basenyi ka ntle. Ka gona ba hloka go somisana le dikgoro tsa go fapafapana tsa mmuso (tshepediso ya toka go bosenyi, ditshepediso tsa leago, ditshepediso tsa thuto le dikarolo tsa setshaba, gare ga tse dingwe) go humana ntlha ya kopanyo go abelana tsebo le temoso ditlhohlong tse di lebanego le ditshokollo bakeng sa tshepediso ya toka go bosenyi go amogela gore batho bao ba lwalago kudu ka monaganong le gatee ga ba swanela go romelwa ditshokollong. / Criminology and Security Science / Ph. D. (Criminal Justice)

The main aim of this study is to obtain the Master of Technologiae degree. Secondly, this study gives more clarity on the conditions of detention in maximum security prisons in South Africa and selected countries, namely the United States of America and Australia. Inmates detained in maximum security prisons are those who were sentenced to serve long terms in prison, including those who show violent behavior at lower security prisons. The development and treatment programs offered for inmates detained at maximum security prisons are taken into consideration, while certain negative aspects unique to maximum security prisons are examined as well. This study is important for the South African correctional system, due to the increase in the number of inmates detained in these facilities. / Penology / M.Tech. (Correctional Services Management)

<div>As destinations of missions in both human and robotic spaceflight become more exotic, a foundational understanding the dynamical structures in the gravitational environments enable more informed mission trajectory designs. One particular type of structure, quasi-periodic orbits, are examined in this investigation. Specifically, efficient computation of quasi-periodic orbits and leveraging quasi-periodic orbits as trajectory design alternatives in the Earth-Moon and Sun-Earth systems. First, periodic orbits and their associated center manifold are discussed to provide the background for the existence of quasi-periodic motion on n-dimensional invariant tori, where n corresponds to the number of fundamental frequencies that define the motion. Single and multiple shooting differential corrections strategies are summarized to compute families 2-dimensional tori in the Circular Restricted Three-Body Problem (CR3BP) using a stroboscopic mapping technique, originally developed by Howell and Olikara. Three types of quasi-periodic orbit families are presented: constant energy, constant frequency ratio, and constant mapping time families. Stability of quasi-periodic orbits is summarized and characterized with a single stability index quantity. For unstable quasi-periodic orbits, hyperbolic manifolds are computed from the differential of a discretized invariant curve. The use of quasi-periodic orbits is also demonstrated for destination orbits and transfer trajectories. Quasi-DROs are examined in the CR3BP and the Sun-Earth-Moon ephemeris model to achieve constant line of sight with Earth and avoid lunar eclipsing by exploiting orbital resonance. Arcs from quasi-periodic orbits are leveraged to provide an initial guess for transfer trajectory design between a planar Lyapunov orbit and an unstable halo orbit in the Earth-Moon system. Additionally, quasi-periodic trajectory arcs are exploited for transfer trajectory initial guesses between nearly stable periodic orbits in the Earth-Moon system. Lastly, stable hyperbolic manifolds from a Sun-Earth L₁ quasi-vertical orbit are employed to design maneuver-free transfer from the LEO vicinity to a quasi-vertical orbit.</div>

The main aim of this study is to obtain the Master of Technologiae degree. Secondly, this study gives more clarity on the conditions of detention in maximum security prisons in South Africa and selected countries, namely the United States of America and Australia. Inmates detained in maximum security prisons are those who were sentenced to serve long terms in prison, including those who show violent behavior at lower security prisons. The development and treatment programs offered for inmates detained at maximum security prisons are taken into consideration, while certain negative aspects unique to maximum security prisons are examined as well. This study is important for the South African correctional system, due to the increase in the number of inmates detained in these facilities. / Penology / M.Tech. (Correctional Services Management)