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First-principles studies of impurity defects formation and their implications on electronic and magnetic properties in a two-dimensional solid : the case of silicene
Get PDFWe report on first-principles density functional theory (DFT) calculations of interactions between extrinsic defects and intrinsic structural defects in silicene. Specifically, we investigate the stability, structural, magnetic and electronic properties of a monolayer silicene containing vanadium (V), hydrogen (H) and oxygen (O) atoms. Vanadium is a magnetic transition-metal and its incorporation in silicene lattice introduces magnetization. Thus, we have considered various configurations of vanadium either as interstitial or substitutional atoms, and their interactions with silicene vacancies. Hydrogen and oxygen are ubiquitous elements which are inadvertently introduced during material synthesis. Therefore, for practical purposes, it is important to investigate how their presence impact on the host material which in this case, are silicene or silicene containing vanadium impurities.
We show that a monovacancy introduces a magnetic moment of 2.02 μB in an otherwise non-magnetic monolayer silicene. Nonetheless, the vacancy possesses a significant formation energy of 3.52 eV, which suggest that it may only be produced through external perturbation such as electron irradiation. Also, we show that a divacancy is more stable than a single vacancy, but unlike a single vacancy, it has a zero magnetic moment. Also, divacancies at different separation in silicene lattice have a similar formation energy irrespective of their separation. Furthermore, when a silicene atom is substituted by a vanadium atom, the latter makes the monolayer silicene metallic while introducing a magnetic moment of 2.61 μB. The presence of a vacancy at a different atomic separation from vanadium shows that the nearest-neighbour vanadium-vacancy defect complex, that is, vanadium in a divacancy has the highest stability, however, all the substitutional vanadium-vacancy configurations are stable and both types of defects can co-exist in a monolayer silicene.
Regarding small vanadium clusters consisting of a pair of vanadium at varying separations, we found that the relative stability of the V-V pair is sublattice dependent, which oscillates between ferromagnetic (FM) and antiferromagnetic (AFM) configuration as the substitutional lattice sites of the V-V pair varies. When the V-V dimer are on a similar sublattice type, they prefer to couple together antiferromagnetically. However, when they are on a different sublattice type, the V-V dimer prefer to be in ferromagnetic configuration.
Comparison between the binding energy of substitutional V-vacancy pair and V-V pair shows that vanadium clustering is more probable without the vacancy than with vacancy. Consideration of interstitial hole V-V pair, that is, V-V pair at the centre of silicene hexagons affirms that indeed, small V-V pair are stable without vacancies. The presence of V atoms, however, induces finite magnetic moment in monolayer silicene, while annihilating the Dirac point and opening a narrow band gap of under 0.1 eV in the monolayer silicene electronic band structures.
We found that the V atom attracts the O and H either in atomic or molecular form, and when adsorbed they impact on the magnetization of V-doped monolayer silicene by reducing or annihilating its magnetic moment. Furthermore, a V-doped silicene having adsorbed atomic H and O behaves like a ferromagnetic semiconductor. On the other hand, molecular H2 and O2 adsorbed on a V-doped silicene do not result in a ferromagnetic semiconductor, although the resulting structures are metallic with a finite magnetization. We also found that the impact of H and O on the electronic and magnetic properties of V-doped silicene depends on their respective lattice locations, that is, whether these adsorbates are on the V atom or on the silicene atom near to the V dopant.Ph. D. (Physics)Physic
Flood susceptibility analysis in Oshakati and Ongwediva within the Cuvelai-Etosha Basin (CEB), north-central Namibia, using remote sensing and GIS techniques
No full textFloods are a major problem affecting many parts of the world. Generally, the Cuvelai Etosha Basin (CEB) of north-central Namibia and specifically Oshakati and Ongwediva towns are no exceptions to this problem. Floods have ravaged the study area throughout the past and continue to do so in present times. Flood analysis in Oshakati and Ongwediva was carried out to map and determine drainage patterns, inundated zones and flood susceptibility. The research relied on collected geographic datasets of satellite images, YXZ survey points of the study area from which the DEM was created, cadastral data and participants' perceptions through a participatory GIS questionnaire. Remote sensing and GIS were used in the research. ArcGIS, Model Maker and Microsoft Excel were used in this research.
Remote sensing techniques through the use of onscreen digitising was used to map shallow depressions, streams and inundated zones. Flood susceptibility was generated in ArcGIS after classifying the DEM into five elevation categories, from which flood susceptibility classes were deduced. Participatory GIS was used to further determine flood impact and rank flood susceptibility in Oshakati and Ongwediva towns.
Parts of the study area were found to fall within shallow depressions and streams. Using
onscreen digitisation, it was found that 18.60% of the entire towns of Oshakati and Ongwediva was situated within shallow depressions and streams, leaving 81.40% of Oshakati and Ongwediva shallow depressions and stream free. Considering the two towns individually, 21.0% of Oshakati town is in shallow depressions and streams, while 15.40% of Ongwediva town is situated in shallow depressions and streams. Shallow depressions features are primarily found in the town of Oshakati, degenerating into streams towards the southern part of the town as they flow towards Etosha pan in the south. Stream features are concentrated in the Ongwediva town, mainly in the eastern part of the town running through settlements such as the Sky location.
An inundation map showed that 23% of Oshakati and Ongwediva towns was inundated during the 2009 flood season. The towns of Oshakati and Ongwediva is subjected to different flood susceptibility classes ranging from very high to very low. The very high flood susceptibility class occupied 6.54% of the two towns, while 24.48% of the Oshakati and Ongwediva towns is situated in high flood susceptible zones. Further, 32.70%, 24.52% and 11.76% of Oshakati and Ongwediva are respectively located in moderate, low, and very low flood-susceptible zones. Looking at the individual towns, Oshakati town is more susceptible to flooding than Ongwediva town, given that more of its land is situated in very high and high flood susceptible zones compared to Ongwediva town.
Several institutions, businesses, public places and critical infrastructure fell into very high and high flood-susceptible zones, especially in Oshakati. In Ongwediva town, most institutions, businesses, and public places did not fall into flood-susceptible zones; they were used to being surrounded by flood water, which restricted access to them. Of all the participants in participatory GIS, 16% were never affected by floods, while 84% reported being affected by floods. Oshoopala, Uupindi and Oneshila are the most flood affected settlements in Oshakati, whereas Efidi location, Sky location and western extensions of 12-17&20 are the most flood affected in Ongwediva town based on participatory GIS data. Ekuku location in Oshakati town and the CBD and the suburbs for both towns are the least affected by floods based on participants, perceptions.
Results of data analysis has indicated that Oshakati town is more prone to flooding than
Ongwediva town. This is evident from very high and high flood susceptibility classes that
occupies a larger area in Oshakati town than in Ongwediva town. Moreover, Oshakati town has more of its land falling within shallow depressions, streams and inundation in comparison to Ongwediva town.M. Sc. (Geography)Geograph
Developing a strategic framework for effective budgeting in primary schools in South Africa: A critical evaluation of budgeting practices
Get PDFIn this dissertation titled: Developing a strategic framework for effective budgeting in primary schools in South Africa: A critical evaluation of budgeting practices, I investigated budgeting practices in two rural public schools of the Maleboho Central Circuit in Limpopo Province using a qualitative research approach. I took an interpretative stance and used a multiple case study design to study budgeting contextually at two schools, comparing and confirming the findings across the cases. Participants who could be reasonably assumed to be knowledgeable about budgeting were purposefully sampled. Convinced that participatory budgeting is the best theoretical grounding for effective budgeting in a democratic context, I grounded the study in this theory. I discovered that the fundamental building blocks of effective budgeting such as budget planning, drawing up, implementation, monitoring and control are being ignored. Prior to budgeting, neither of the school does any planning. Documents such as the schools' vision and mission statements, previous year's financial accounts, and development plans are not considered and deliberated on. Budgeting is thus done without anyone knowing how much money is available, without anyone considering the school's aims, and without any money being allocated for development. Finance policies are developed to meet departmental requirements rather than to guide the governing body members in handling school funds. The credibility of both schools’ audit reports is compromised by the exclusion of members of the governing body during the appointment of the auditors who are alleged to be friends of the principals. The findings of the study confirm that participatory budgeting, which at the very least requires the involvement of all stakeholders, is not practised. Although the governing body members of both schools are not equipped to adopt their schools’ budgets, the Limpopo Department of Education does little to provide them with the skills needed to practise effective budgeting in their schools. The need for a strategic framework to guide schools’ governing body members, or at least their finance committees to effectively budget was thus confirmed. With consideration of the legal prescripts and the empirical findings, I developed a strategic framework based on the essential building blocks for effective budgeting, namely planning, drawing, implementation, monitoring and control.Mo nyakišišong ye thaetlele ya yona e rego Go hlabolla tlhako ya maano a go dira ditekanyetšo tše di šomago gabotse dikolong tša praemari ka Afrika Borwa: Tekolo ye bohlokwa ya mekgwa ya go beakanya ditekanyetšo, ke nyakišišitše mekgwa ya go beakanya ditekanyetšo dikolong tše pedi tša mmušo tša dinagamagaeng tša Sedikothuto sa Bogare sa Maleboho ka Profenseng ya Limpopo ke šomiša mokgwa wa nyakišišo ya khwalithethifi. Ke tšeere boemo bja tlhathollo le go šomiša tlhamo ya nyakišišo ya ditiragalo tše ntši go ithuta tekanyetšo maemong a dikolo tše pedi, ke bapetša le go tiišetša dikutullo go akaretša maemo. Batšeakarolo bao go ka tšewago gore bana le tsebo ya go amogelega mabapi le tekanyetšo ba ile ba sampolwa go ya ka morero. Ka go kgodišega gore tekanyetšo ya go dumelela botšeakarolo ke lebaka le lekaone la teori ya tekanyetšo ye e šomago ga botse ka gare ga temokrasi, ke theile nyakišišo godimo ga teori ye. Ke utullotše gore dikago tša motheo tša tekanyetšo ye e šomago ga botse go swana le peakanyo, go ngwala, phethagatšo, go hlokomela le taolo di a hlokomologwa. Pele go beakanywa tekanyetšo, ga go na sekolo se se dirago peakanyo efe goba efe. Ditokomane tša go swana le dipego tša pono le thomo ya dikolo, diakhaonto tša ditšhelete tša ngwaga woo o fetilego, le maano a tlhabollo ga di laetšwe. Ka go realo go beakanya tekanyetšo go dirwa ntle le gore batho ba bangwe ba tsebe gore ke tšhelete ye kaakang yeo e lego gona, ntle le gore batho ba ele hloko maikemišetšo a dikolo, le ntle le gore go be le tšhelete ye e abelwago tlhabollo. Melawana ya ditšhelete e hlamilwe go fihlelela dinyakwa tša kgoro go ena le go hlahla maloko a lekgotlataolo la sekolo ka tshwaro ya ditšhelete tša sekolo. Tshephagalo ya dipego tša balekodi ba dipuku tša dikolo ka bobedi go bewa kotsing ke go se akaretšwe ga maloko a lekgotlataolo la sekolo nakong ya go thwala balekodi ba dipuku bao ba gopolelwago gore ke bagwera ba dihlogo tša dikolo. Dikutullo tša nyakišišo di tiišetša gore tekanyetšo ya go dumelela botšeakarolo, yeo bonnyane e nyakago go akaretšwa ga bakgathatema ka moka, ga e dirwe. Le ge e le gore maloko a lekgotlataolo a dikolo ka bobedi ga se a hlahlelwa go amogela ditekanyetšo tša dikolo tša bona, Kgoro ya Thuto ya Limpopo ga e dire ka mo go lekanego go ba fa mabokgoni ao a nyakegago go dira tekanyetšo ye e šomago ga botse dikolong tša bona. Go nyakega ga tlhako ya maano, go hlahla maloko a lekgotlataolo la dikolo, goba bonnyane dikomiti tša ona tša ditšhelete, go dira tekanyetšo ka tshwanelo go a tiišetšwa ka go realo. Ka kelotlhoko ya ditaelo tša molao le dikutullo tša diphihlelelo, ke tšweleditše tlhako ya maano yeo e theilwego godimo ga dikarolo tše bohlokwa tša go aga tša tekanyetšo ye e šomago ga botse, e lego peakanyo, go ngwala, phethagatšo, go hlokomela le taolo.In hierdie verhandeling, getitel Developing a strategic framework for effective budgeting in primary schools in South Africa: A critical evaluation of budgeting practices, het ek deurmiddel van die kwalitatiewe navorsings benadering ondersoek ingestel na die begrotingspraktyke in twee landelike openbare skole van die Maleboho Sentrale Kring in die Limpopo-provinsie. Ek het ‘n interpretatiewe standpunt ingeneem en ‘n veelvuldige gevallestudie-ontwerp gebruik om begrotingstelsels kontekstueel by twee skole te bestudeer, en die bevindings oor die gevalle heen te vergelyk en bevestig. Doelgerigte steekproefneming is gedoen met deelnemers van wie redelikerwys aanvaar kon word dat hulle kundig en ingelig is op die gebied van begrotingsprosesse. Ek was daarvan oortuig dat ‘n deelnemende begrotingstelsel die beste teoretiese basis vir effektiewe begroting in ‘n demokratiese konteks is, en het dus die studie op hierdie teorie gegrond. Ek het ontdek dat die fundamentele boublokke van ‘n effektiewe begrotingstelsel, soos beplanning, opstelling, implementering, monitering en beheer, geïgnoreer word. Nie een van die skole doen enige beplanning voordat die begrotingsproses begin nie. Daar word nie besin oor dokumente soos die skole se missie- en visie verklarings, vorige jare se finansiële rekeninge, of ontwikkelingsplanne nie. Begrotings word dus opgestel en geïmplementeer sonder dat enigiemand weet hoeveel geld beskikbaar is sonder dat enigiemand die skool se doelwitte in aanmerking neem, en sonder dat enige geld vir ontwikkeling toegewys word. Finansiële beleide word ontwikkel om aan departementele vereisteste voldoen eerder as om as riglyn te dien vir die lede van die beheerliggaam oor hoe om die skool se fondse te hanteer. Die geloofwaardigheid van albei skole se ouditverslae word onder verdenking gebring deur die uitsluiting van lede van die beheerliggaam gedurende die aanstelling van die ouditeure, wat na bewering die skoolhoofde se vriende is. Die bevindings van die studie bevestig dat deelnemende begrotingstelsels, wat as ‘n minimum vereis dat alle belanghebbers betrokke is, nie toegepas word nie. Alhoewel die lede van die beheerliggaam van beide skole nie bekwaam is om hulle skole se begrotingste aanvaar nie, doen die Limpopo Departement van Onderwys bitter min om hulle toe te rus met die nodige vaardighede om effektiewe begrotingstelsels in hul skole toe te pas. Die behoefte aan ‘n strategiese raamwerk om as riglyn te dien vir die lede van skole se beheerliggame, of minstens hul finansiële komitees ten einde effektief te kan begroot, is dus bevestig. Met inagneming van die regsvoorskrifte en die empiriese bevindings, het ek ‘n strategiese raamwerk ontwikkel op grond van die sleutelboublokke vir effektiewe begrotingstelsels, naamlik beplanning, opstelling, implementering, monitering en beheer.D. Phil. (Education Management)Educational Leadership and Managemen
An analysis of the incorporation of Western practice in Black South African traditional weddings
No full textBlack South Africans conduct their matrimonial ceremonies by practising African indigenous traditional customs, however, they simultaneously conduct white weddings in addition to their African traditional customs. The celebration of white weddings by black people should be understood within the context of their colonial history which has had an impact on cultural practices. This study aimed to gain a critical understanding of, and to explain the reasons that motivate black people to conduct white wedding customs in conjunction with traditional ones in South Africa. It traced the history of wedding conduct or practices of black South Africans and the dialectical process of those practices. The researcher employed a qualitative research methodology, utilising a focus group discussion for data collection and a critical discourse analysis for analysing the research results. The results of the study are discourses focusing on opposition, societal pressure, legal discourses, religious imperialism, economic discourses, and condemnation of African culture. These results pivot towards an overarching discourse centering on the impact of colonisation on African marriage which leads to its incorporation of Western practice. This is causing incongruence of thoughts, feelings, and behaviour in black people’s marriage conduct, where black people exist in a double conscious experience, particularly in terms of marriage conduct.M.A. (Psychology)Psycholog
Test of CP-invariance of the Higgs boson in vector-boson fusion production and in its decay into four leptons
No full textAbstract
A search for CP violation in the decay kinematics and vector-boson fusion production of the Higgs boson is performed in the H → ZZ* → 4ℓ (ℓ = e, μ) decay channel. The results are based on proton-proton collision data produced at the LHC at a centre-of-mass energy of 13 TeV and recorded by the ATLAS detector from 2015 to 2018, corresponding to an integrated luminosity of 139 fb−1. Matrix element-based optimal observables are used to constrain CP-odd couplings beyond the Standard Model in the framework of Standard Model effective field theory expressed in the Warsaw and Higgs bases. Differential fiducial cross-section measurements of the optimal observables are also performed, and a new fiducial cross-section measurement for vector-boson-fusion production is provided. All measurements are in agreement with the Standard Model prediction of a CP-even Higgs boson
Developing a work engagement framework for employees in the tertiary education sector in Zimbabwe
No full textAbstract in English, Xhosa and ZuluThe study focused on the construction of a work engagement framework, by investigating the relationship between perceived organisational justice, the psychological contract, work engagement and socio-demographic variables (age, gender, employment status and employment category). This is to inform work engagement strategies for different socio-demographic groups of employees in the context of the tertiary education environment in Zimbabwe. A quantitative survey was conducted on a sample of academic and non-academic (permanent and contract) staff (n = 336) at the selected tertiary institution. The post-positivist philosophy and the census sampling technique were adopted. The bivariate correlations indicated strong relationships between perceived organisational justice, the psychological contract, and work engagement. Stepwise regression analysis revealed perceived organisational justice and the psychological contract to be the strongest predictors of work engagement. Moderated hierarchical regression analysis revealed that the identified socio-demographic variables did not moderate the relationships between perceived organisational justice, the psychological contract, and work engagement. Spearman’s bivariate correlation and regression analyses informed structural equation modelling and revealed a good fit between perceived organisational justice, the psychological contract, and work engagement. Statistically significant differences were found in respect of the socio-demographic variables. From a theoretical standpoint, the study enhanced deeper comprehension of the hypothesised work engagement framework; on an empirical standpoint, the study developed an empirically tested work engagement framework; and on a practical level, individual-level and organisation-level interventions pertaining to the work engagement framework are recommended for human resource managers.Esi sifundo sagxila ekwakheni isikhokelo somsebenzi ngokuphanda ulwalamano phakathi kobulungisa bequmrhu obucingelwayo, isivumelwano sesimo sengqondo nokusebenza nemiba yezobalo loluntu (ubudala, isini, uhlanga, nesimo sengqesho). Oku kwenzelwa ukuyila amacebo okungena emsebenzini kwabantu abaziindidi ezahlukeneyo kwicandelo lezemfundo ephakamileyo eZimbabwe. Kwaqhutywa uhlolo zimvo oluqwalasela amanani kwisampulu yabasebenzi abafundisayo nabangafundisiyo (abazizigxina nabangezozigxina) (n = 336) kwiziko elithile lemfundo ephakamileyo. Ukufana kwemiba emibini kwabonakalisa ulwalamano olunamandla phakathi kobulungisa bequmrhu obucingelwayo, isivumelwano sesimo sengqondo kunye nokuzimisela emsebenzini. Uhlalutyo lwamanani akhethwe ngokwenkqubo eyaziwa ngokuba yistepwise regression lwadulisa ukuba ubulungisa bequmrhu obucingelwayo kunye nesivumelwano sesimo sengqondo zizo izinto ezikhokelela ekuzinikeleni emsebenzini. Uhlalutyo oluhleliweyo lokulandelelana kwamanani akhethwe ngenkqubo yeregression lwavelisa ukuba imiba echingiweyo yezobalo loluntu ayinanxaxheba kulwalamano oluphakathi kobulungisa bequmrhu obucingelwayo, isivumelwano sesimo sengqondo kunye nokuzimisela emsebenzini. Iindidi zohlalutyo lothelekiso lwemiba emibini nolweregression zasekela uhlalutyo lweendidi ngeendidi zokwakheka kwemiba, kwaveza nokuba kukho ulwalamano oluhle phakathi kobulungisa bequmrhu obucingelwayo, isivumelwano sesimo sengqondo kunye nokuzimisela emsebenzini. Kwafumaniseka umahluko othe vetshe phakathi kwemiba yobalo kwezoluntu. Kwizinga leengcingane/iithiyori, esi sifundo saqinisa ukuqonda ngesikhokelo esakhokela iingcinga ezimalunga nokuzimisela emsebenzini. iii
Kwizinga lezifundo ezinobungqina, isifundo saphuhlisa isikhokelo esivavanywe sanobungqina malunga nokuzimisela emsebenzini kwizinga lokuphathekayo okanye okwenzekayo, kwenziwa iingcebiso kubalawuli becandelo lokulawula abaqeshwa, ngcebiso ezo yayizezokuncedisana nomqeshwa ngamnye kunye nequmrhu malunga nesikhokelo sokuzimisela emsebenzini.Ucwaningo lugxile ekwakhiweni kohlaka lokuzibandakanya emsebenzini, ngokuphenya ubudlelwano phakathi kobulungiswa benhlangano obucatshangwayo, inkontileka yengqondo nokuzibandakanya komsebenzi kanye nokuhlukahluka kwenhlalo yabantu (iminyaka yobudala, ubulili, uhlanga kanye nesimo sokuqashwa). Lokhu, ukwazisa amasu okuxoxisana nesisebenzi emaqenjini ahlukene enhlalo yabantu ngokwesimo semfundo ephakeme eZimbabwe. Inhlolovo yenani yenziwe ngesampula labasebenzi bezemfundo nabangezona kwezemfundo (izisebenzi ezihlala unomphela nezesikhashana) (n = 336) esikhungweni semfundo ephakeme esikhethiwe. Ukuhlobana kokuguquguquka kabili kubonise ubudlelwano obuqinile phakathi kobulungiswa benhlangano obubonwayo, inkontileka yengqondo nokuzibandakanya komsebenzi. Ukuhlaziywa kwesinyathelo esihlakaniphile kwembule ubulungisa benhlangano obubonwayo kanye nenkontileka yezengqondo ukuze kube izibikezelo eziqine kakhulu zokuzibandakanya komsebenzi. Ukuhlaziya okulinganiselwe kwesinyathelo esihlakaniphile sokwehla kwamndla emali nomnotho kwembula ukuthi okuguquguqukayo okukhonjiwe kwenhlalo yabantu akuzange kulinganisele ubudlelwano phakathi kokucatshangwayo kobulungiswa benhlangano, inkontileka yengqondo nokuzibandakanya emsebenzini. Ukuhlaziya kokuguquguquka kabili kanye nokwehla kwamndla emali nomnotho yazisa imodeli yezibalo zesakhiwo futhi yembula ukuvumelana okuhle phakathi okucatshangwayo kobulungisa benhlangano, inkontileka yengqondo nokuzibandakanya komsebenzi. Umehluko omkhulu utholakale maqondana nokuguquguquka kwenhlalo yabantu. Ngokwezinga lethiyori, ucwaningo lwathuthukisa ukuqonda kohlaka lokuzibandakanya komsebenzi okucatshangelwayo; ngezinga v
lokucwaninga, ucwaningo lwenze uhlaka lokuzibandakanya emsebenzini oluvivinywe ngokwamandla; futhi ngokwezinga elingokoqobo, ukungenelela komuntu ngamunye kanye nenhlangano ngokohlaka lokusebenzelana kwanconywa kubaphathi bezabasebenzi.Ph. D. (Management Studies)Human Resource Managemen
De-migranticizing as methodology: rethinking migration studies through immobility and liminality
No full textAbstract
De-migranticization is becoming a core strategy for overcoming the fetishization of migrants in migration studies. However, this shift in perspectives raises questions about what categories to use instead. This paper contributes to these debates by considering the potential of studying immobility as a tool for de-migranticization. It looks at immobility through the lens of liminality: as a transitory phase, as a transformative stage and as one which enables epistemological subversion. In doing so, it goes beyond other border spanning terms to offer methodological insights into using immobility and liminality to de-migranticize. The paper suggests that these qualities of reading immobility through theories of liminality has implications for when, where and how to study migration. The empirical case draws on 165 semi-structured interviews with distance education students from Zimbabwe, Namibia and Nigeria studying at the University of South Africa (UNISA)
The sermon in Russian German Pentecostal churches: sermon analyses of the free gospel Christian congregations in Germany
Get PDFText in German with abstract in English and RussianAn dieser Stelle möchte ich mich herzlich bei all denen bedanken, die mich unterstützt
haben, diese Forschung durchzuführen und zu schreiben. Einige möchte ich hier namentlich
erwähnen.
Ein ganz besonderer und großer Dank gilt meinem Supervisor, Dr. Manfred Baumert.
Er hat mich mit seiner großen fachlichen Kompetenz unterstützt, gefördert und
mich zugleich als Mensch mit meinen Aufgaben, Sorgen und Grenzen nie aus den
Augen verloren. In schweren Phasen danke ich ihm besonders für den zugesprochenen
Mut und die schnelle und intensive Beratung. Auch danke ich meinem Co-Supervisor,
Prof. Dr. Jaco S. Dreyer, für seine fachlich kompetente Unterstützung.
Für die schnellen, zuverlässigen und genauen Korrekturen am Text danke ich Inna
Ruhl. Mein Dank gilt auch Frau Birgit Currlin für das Lektorieren der Arbeit.
Ein besonderer Dank geht an einen anonymen Spender, der mir das zweite Studienjahr
finanziert hat. Ohne diese Spende wäre diese Forschungsarbeit nie zum Abschluss
gekommen.
Ich danke den Laienpredigern der BFECG, die mich zum Forschungsthema dieser
Arbeit angeregt haben. Ich bewundere ihren Mut, ihren Eifer und ihre Opferbereitschaft
auf der Kanzel. Ich danke auch Dr. Leonnard Frank für seine Ratschläge; besonders
für die historische Analyse waren seine Hinweise hilfreich.
Besonders danke ich meiner Frau Angelika Hildebrand, die mich schon durch manche
schwere Phase meines Lebens begleitet hat und niemals den Glauben an mich
verloren hat. Ich danke ihr, dass sie mich freigestellt und unterstützt hat, damit ich
diese Forschungsarbeit schreiben konnte. Ich danke auch meinen Kindern Linus Joel,
Rosalie und Justus, dass sie mich für eine gewisse Zeit entbehren konnten.
Zuletzt möchte ich auch meinem himmlischen Vater danken, der mir Menschen in
den Weg stellte und andere Ressourcen schenkte, damit diese Forschungsarbeit umgesetzt
werden konnte.Wissenschaftliche Untersuchungen zu russlanddeutschen Freikirchen sind selten, insbesondere
zu russlanddeutschen Pfingstgemeinden. Diese wurden bisher sowohl in
der Missionswissenschaft als auch in der wissenschaftlichen Praktischen Theologie –
dem Bezugsrahmen der vorliegenden Arbeit – kaum erforscht. Die Forschungsfrage
dieser Studie konzentriert sich auf freikirchliche russlanddeutsche Pfingstler und untersucht,
welche (praktisch-)theologischen Inhalte in den Predigten vermittelt wurden,
die während der Pandemie ab dem Jahr 2020 digital, über YouTube, an ihre Gemeinden
übermittelt oder in Gottesdiensten gehalten wurden.
Auffällig ist, dass während der Corona-Pandemie einige empirische Untersuchungen
zu Gottesdiensten in Groß- und Freikirchen durch das neue mediale Format verstärkt
Interesse geweckt haben. Diese Forschungsarbeit reiht sich zwar in diesen Kontext
ein, hebt sich jedoch durch ihren spezifischen Fokus auf die Predigten innerhalb
russlanddeutscher Pfingstgemeinden ab. Hinzu kommt eine weitere Besonderheit: Im
Gegensatz zu den beiden großen Landeskirchen und den meisten evangelischen Freikirchen
in Deutschland wird der Verkündigungsdienst in den russlanddeutschen
Pfingstgemeinden überwiegend von Laien wahrgenommen.
Ein Ergebnis der vorliegenden Arbeit besteht darin, dass die theologischen Inhalte
der Predigten untrennbar mit der historischen Entwicklung und der Erinnerungskultur
der russlanddeutschen Pfingstler verbunden sind. Der Bezugsrahmen reicht von der
praktisch-theologischen Prägung – sowie teilweise normativen Prämissen in biblischer
Lehre und Lebensführung – zurück bis zu Erfahrungen im Russischen Reich (1721-
1917) und beeinflusst die Predigtinhalte ebenso stark wie die gegenwärtig noch andauernde
Integrationsphase.Academic studies on Russian German free churches, particularly on Russian German
Pentecostal congregations, are rare. These congregations have hardly been researched
to date, both in missiology and academic practical theology, which is the
frame of reference for this study. The research question of this study focuses on freechurch
Russian German Pentecostals. It examines the (practical) theological content
conveyed in the sermons transmitted digitally via YouTube to their congregations or
held in church services during the pandemic from 2020 onwards.
It is noteworthy that during the coronavirus pandemic, some empirical studies on
church services in large and free churches have attracted increased interest due to the
new media format. Although this research fits into this context, it stands out due to its
specific focus on sermons within Russian German Pentecostal congregations. Another
distinctive feature: in contrast to the two large regional churches and most Protestant
free churches in Germany, the preaching ministry in the Russian German Pentecostal
congregations is predominantly carried out by laypeople.
One result of this study is that the theological content of the sermons is inextricably
linked to the historical development and the culture of remembrance of the Russian
German Pentecostals. The frame of reference ranges from the practical theological
formation and partly normative premises in biblical teaching and lifestyle to experiences
in former Russia. It influences the sermon content as strongly as the ongoing
integration phase.M.A. (Practical Theology)Practical Theolog
Towards dismantling heteronormativity at South African universities : heterosexual students’ perceptions of heteronormative ideologies and LGBTIQ+ identities
Get PDFSouth African literature demonstrates that heteronormative ideologies are evident at universities and inform various discriminations against LGBTIQ+ students. These heteronormative ideologies emanate from the traditional heteronormative socialisation in the South African society. While there is notable literature based on the experiences and perceptions of LGBTIQ+ students at universities, not much research pays attention to heterosexual students’ perceptions. It is imperative to consider heterosexual students’ perceptions of LGBTIQ+ identities to challenge heteronormative ideologies and transform universities into inclusive spaces. This article is based on heterosexual university students’ non-heteronormative perceptions of LGBTIQ+ identities. I argue that there is the potential to dismantle heteronormativity at universities since the heterosexual students in this research are critical of heteronormative ideologies and question stereotypes about sexual minority identities. Through semi-structured interviews with 10 self-identifying heterosexual students, the article established that students’ perceptions of LGBTIQ+ identities were affirming as they resisted traditional norms of sexuality and gender and demonstrated sensitivity to sexual diversity. The paper calls for further research to critically engage heterosexual students in conversations around heteronormativity to advance the acceptance, tolerance, and inclusion of LGBTIQ+ students at South African universities.SociologyNational Institute for the Humanities and Social Sciences (NIHSS
Examining water governance and water efficiency strategies in 3 - 5 star graded game lodges and associated residential beneficiation: The case of reflexive water governance at the Dinokeng Game Reserve in Gauteng, South Africa
Get PDFText in EnglishThe world is facing a global water crisis, with many regions experiencing intense
competition for limited water supplies among various stakeholders, including game lodges,
residents, agriculture, and various other industries. This crisis is exacerbated by water
scarcity, mismanagement, and climate change which necessitates robust water governance
for sustainable development. Addressing these issues requires a holistic and collaborative
approach that considers the needs of local communities, involved stakeholders and the
environment while promoting equitable and efficient water use. Tourism is a significant
global economic contributor, and any disruption in the availability of water in areas such as
game lodges can have a cascading effect on the overall tourism sector and local economies
and employment. Effective is crucial for sustainable development in water-scarce areas, as
conflicts over water use between these stakeholders can contribute to broader concerns
related to social equity and justice.
Sustainable water management is imperative for environmental conservation and the
longevity of game lodges and is integral to the tourism industry as water scarcity directly
impacts their operations. Most game lodges are situated in remote, ecologically sensitive
areas that are crucial for biodiversity conservation with little to no infrastructure, relying on
rivers, dams, and boreholes as water sources. Due to their remote locations, game lodges
face unique challenges, relying heavily on water for guests and employees. Staff members
residing nearby contribute to high water consumption. Thus, game lodges must ensure a
sufficient water supply, educate visitors and employees on water usage, and reduce
imbalances for neighboring residents. Such residents play an important role in managing
available water resources to prevent social tensions that can impact community relations and
the overall stability between game lodges, residents, and other water users. In South Africa, where water is a scarce resource, effective water management strategies are
crucial, especially in arid areas hosting game lodges. This study explored the reflexive water
governance practices adopted by game lodges and neighboring residents to enhance efficient
water use, mitigate scarcity, and achieve sustainable water management. Data were
collected from key study participants representing the government, water companies, water authorities, residents, and the game lodge owners who answered questions in semistructured
interviews. Secondary data were also used to provide information about the
governance and sustainable management of water in the study area. Findings demonstrated
the intricate relationship between game lodges, neighboring residents, and water resource
management that, if not optimally managed, could lead to pollution and degradation of
water quality, affecting not only the immediate environment but also all water users.
According to the study, poor water governance, particularly for residents in local
communities, resulted from corruption, a lack of efficient policies, inadequate monitoring
and evaluation systems, a lack of water awareness, insufficient efforts to reduce water
consumption, and inadequate water management. While multiple game lodges with 3–5-star
ratings equipped themselves with water efficiency systems, a lack of government policy
enforcement and stakeholder collaboration hindered the adoption of water measures such as
the efficient use of taps and toilets. On the other hand, residents in local communities who
faced an intermittent water supply increased their water supply by adopting water
conservation efforts through reuse, reduction, and recycling because the municipality in
their neighborhood did not provide enough water and there were limited water resources.
The study findings also indicated that the game lodges made provisional access for their
employees to obtain water but there was no community beneficiation implemented towards
improving water access in a sustainable and equitable manner. Overall, the benefits of the
use of reflexive governance and the water governance framework which require a
collaborative and sustainable approach was suggested as a means of managing water
resources between game lodges and residents. This research contributes to the ongoing
discourse on responsible tourism, emphasizing the need for reflexive water governance as
an integral component in the pursuit of sustainable development within the context of game
lodges and their associated residents. It is crucial to ensure that the core right to access water
for basic needs is met for everyone, and any additional initiatives should contribute to
overall social welfare without compromising this fundamental right. A variety of strategies
for better water governance in the region were suggested by the study.Ph. D. (Environmental Science)Environmental Science