21838 research outputs found
Sort by
Interfacial electron redistribution in 2D/3D MoS2/CuBi2O4 p-n heterojunction for visible light assisted reduction of Cr(VI) and oxidation of antibiotics
No full textWe report the successful design of a heterojunction comprising p-type CuBi2O4 (CBO) and n-type MoS2 semiconductors. This was achieved through a hydrothermal and calcination method, resulting in the uniform deposition of three-dimensional CBO nano-cubes onto the surface of two-dimensional MoS2 nanosheets. Under visible light, the best MoS2/CBO composite exhibited the maximum catalytic efficacy for both the reduction of Cr (VI) and the oxidation of tetracycline hydrochloride (TC) at a molar ratio of 10:1. For tetracycline degradation the heterostructure achieved 83 % efficiency and a rate constant of 0.00412 min-1 after 180 min, while complete reduction of Cr(VI) was achieved, with a rate constant of 0.11 min-1 after 40 min. The efficiency of MoS2/CBO was averagely 1.4 times higher than that of the pristine materials for TCE degradation, while the activity was almost 1.8 times of the pristine materials for Cr(VI) reduction. The remarkable catalytic activity can be ascribed to the combined effects of electron redistribution and charge transfer between 2D MoS2 and 3D CuBi2O4 leading to the formation of a heterostructure and thereby facilitating strong interfacial interactions among the components
causing effective absorption of visible light and improved separation of photogenerated electron-hole pairs. It is important to note that MoS2/CBO demonstrated excellent stability and reusability after 6 cycles. The primary reactive species responsible for TC degradation were identified as photo-generated h+, and •O2- . Additionally, e- was found to be mainly liable for Cr (VI) photoreduction. Furthermore, we propose a plausible photocatalytic
reaction pathway for the elimination of both TC and Cr(VI). This research provides valuable inroads into the development of heterojunction photocatalysts for efficient water de-toxification
Investigating the challenges of the offender rehabilitation path (ORP) implementation and its impact on Kirkwood community of Eastern Cape
No full textText in English with abstracts in English and ZuluThis study explores the challenges and effectiveness of the Offender Rehabilitation Path (ORP) in Kirkwood, South Africa, focusing on offenders, correctional staff, and rehabilitation program coordinators. Through qualitative research, data were collected using semi-structured interviews and analysed thematically. Key challenges identified include overcrowding, limited resources, inadequate staff training, and insufficient post-release support, all of which contribute to high rates of recidivism. Additionally, a disconnect between rehabilitation programs and societal reintegration expectations poses a significant barrier, particularly for disadvantaged offenders.
To address these issues, the study recommends the need to align rehabilitation programs more closely with societal reintegration strategies. the study also recommends improving staff training, resource allocation, and post-release support systems. It also emphasizes that further research should investigate the long-term outcomes of rehabilitation efforts and the impact of community-based reintegration programs.Olu phandolwazi /uphonononga imingeni kunye nokusebenza kweNkqubo yokuLulekwa kwaBaphulimthetho (iORP) eKirkwood, eMzantsi Afrika, lugxininisa kubaphulimthetho, abasebenzi bezolu/eko, kunye nabaququzeleli benkqubo yoluleko. ldatha iqokelelwe ngodliwanondlebe olucwangciswe mayane yaze yahlalutywa ngokwemixho/o kusetyenziswa uphandontyilazwi. lmingeni engundoqo echongiweyo ibandakanya ukuxinana, ukunqongopha/a kwezibonelelo, ukunqongophala koqeqesho lwabasebenzi, kunye nokunqongophala kwenkxaso emva kokukhululwa kwabaphulimthetho. Yonke le mingeni inegalelo kumazinga aphezulu okwaphula umthetho kwakhona. Ukongeza, kukho ukungahambelani phakathi kweenkqubo zoluleko kunye nokulindelwe luluntu ekubuyiselweni kwabaphulimthetho eluntwini okubeka umqobo obonakalayo, ngakumbi kwabaphulimthetho abahle/elekileyo.
Ukuqubulisana nale miba, olu phandolwazi lucebisa imfuneko yokulunge/elaniswa kweenkqubo zolu/eko ngokusondeleyo ngakumbi kwizicwangcisoqhinga zokubuyiselwa kwabaphulimthetho eluntwini. O/u phandolwazi lukwacebisa ukuphuculwa koqeqesho lwabasebenzi, ukwabiwa kwezibonelelo, kunye neenkqubo zenkxaso yasemva kokukhululwa kwabaphulimthetho. Lugxininisa ukuba kufuneka uphandolwazi olongezelelweyo luphande iziphumo zexesha elide zeenzame zoluleko kunye nefuthe leenkqubo zokubuyiselwa kwabaphulimthetho eluntwini.M.A. (Correctional Management)Corrections Managemen
Enhanced thermal conductivity of Ag-H20 nanofluid by pulsed laser ablation in liquid (PLAL)
No full textIn this study, we present a straightforward, one-step pulsed laser ablation in liquid (PLAL) method for creating a surfactant-free nanofluid with silver nanoparticles suspended in water (AgNPs-H2O). The ND-YAG laser of 1064 nm wavelength is used to ablate a pure silver (Ag) target's surface in a deionized water base fluid under standard conditions. Six AgNPs-H2O nanofluids were synthesized, with concentrations corresponding to varied ablation periods (ta = 2.5; 5; 10; 15; 20; and 25 min). The synthesized nanofluid was characterised for morphology, composition, optical properties, stability tests, thermal properties, and surface tension. The nanoparticles in the water organised into an aggregate network of spherical nanoparticles, with sizes averaging between 21 and 37 nm. Apart for carbon from coating during SEM and EDS examinations, no contaminants are detected from a basic study in the fluid that is produced. AgNPs are dispersed throughout our water host fluid, as evidenced by a plasmonic peak in the UV-vis spectrum at 400 nm. Unfortunately, these nanofluids are not stable with time, at higher concentration of AgNPs in water, they settle under gravitation. That is why we lose some plasmonic peaks at high concentration (ta = 10; 15; 20; and 25 min) and only at low concentration (ta = 2.5 and 5 min) where AgNPs are stable even after 5 months.). The thermal characteristics of the generated samples were evaluated using thermal conductivity measurements, which were carried out at various nanoparticle concentrations and at temperatures ranging from 25 °C to 45 °C. The results showed that the thermal rise of Ag-water nanofluid was larger than that of pure water. When temperature rises, nanofluids become more thermally conductive. The thermal conductivity improvement was found to be around 19.45% at a temperature of 45°C and a nanoparticle volume percent of ta = 5 min. This results from the instability of AgNP at higher concentrations. Also, we assessed the contact angle, which unmistakably demonstrates that it is concentration dependant. So, even at low concentrations, the presence of silver nanoparticles will have an impact on the flow of the silver-water nanofluid. Also, it is demonstrated that a tube's surface will influence fluid flow, demonstrating the importance of careful designM.Sc. (Physics)Physic
The emotional contagion and emotional labour experiences of sales representatives in a telemarketing organization
No full textM. Com. (Industrial and Organizational Psychology)Industrial and Organisational Psycholog
Exploring the perspectives of Physical Science teachers on technology utilization : a case study in Makhutswe circuit
No full textThe use of technology in mainstream education has gained recognition around the world as an effective tool to improve teaching and learning across the educational curriculum system. This study aimed to explore the perspectives of Physical Science teachers on the use of technology in their classrooms in the Makhutswe circuit. To explore these perspectives the study examined teachers’ knowledge about technology, the challenges they encountered when using technology, and the impact of the COVID-19 pandemic on their engagement with technology during and post-COVID-19 lockdown.
The study employed an interpretative research paradigm to interpret and understand physical science teachers’ perspectives when using technology in their classrooms. A qualitative research approach was adopted in this study to better understand teachers’ perspectives within their context. The study used a case study design as each teacher was treated as a unique case. Participants in this study were selected from the Makhutswe circuit population using a convenience sampling method because they were easy to access. Data was collected through semi-structured interviews, classroom observations, and document analysis from six Physical Science teachers out of ten in the Makhutswe circuit. To generate meaningful findings, each case was analyzed separately using thematic analysis.
The study findings revealed that most of the teachers had knowledge about technology use in their Physical Science classrooms. Some of them used technological tools such as laptops and projectors to conduct their lessons. However, some challenges prevented them from fully using it. Some of the barriers they mentioned were a lack of technological resources, teacher training, and adequate internet connectivity. Future research may focus on doing small-scale international comparative research on physical science teachers’ perspectives on the use of technology in their classrooms. The study recommends that the Department of Basic Education make provision for technological tools, proper internet connectivity and effective teacher training for teachers, especially in rural schools. This would improve teaching and learning in rural areas.M. Ed. (Natural Science Education)Science and Technology Educatio
Indigenous knowledge in Africa : an organic intervention to healthcare problems in Africa
Get PDFInformation Scienc
Critical analysis of the effectiveness of Military Police Division training in South Africa
No full textAbstracts in English, Tsonga and SwaziThis study sought to critically explore and analyse the effectiveness (or lack thereof) of the current Military Police Division (MPD) training initiatives or curriculum on the practical workplace skills and experience of the Military Police Officials (MPOs) within the South African National Defence Force (SANDF). The term ‘training effectiveness’ describes the efficacy of training in supporting knowledge transfers, which is a post-training measurement of discernible improvements in knowledge, abilities, and attitudes.
The study adopted the mixed-methods research design approach, inspired by its pragmatist philosophical perspective. A three-phased data collection process was applied in order to triangulate the quantitative and qualitative data from the questionnaires and semi-structured interviews. The first phase involved quantitative research instrumentation through questionnaire surveys aimed at assessing the efficacy of the MPD officers’ training in the SANDF. The second phase involved qualitative semi-structured individual interviews aimed at confirming the questionnaire results in respect of the quality and efficacy of the MPD training. A total of 123 participants were involved in the study, 103 of whom were selected for participation in the quantitative phase through the probability systematic sampling strategy. Meanwhile, 20 participants were selected by means of the simple random sampling technique for participation in the qualitative phase through telephonically conducted semi-structured interviews since the study was actually conducted during the COVID-19 era in the country.
Various objectives were fulfilled in this study, namely:
• To explore and describe the mandate of the MPD;
• To determine whether the current MPD training initiatives are sufficiently effective to provide Military Police Officials (MPOs) with the necessary workplace skills;
• To explore, describe and analyse international and local best police training practices;
• To explore, describe and analyse the current MPD training challenges and needs; and
• To develop a conceptual framework of practical guidelines, procedures and recommendations for the Military Police to effectively enhance the MPD training.
The findings of this study revealed that a number of challenges exist within the MPD training, including the lack of relevant training resources, unfulfilled learner expectations, misaligned MPD training to the National Qualifications Framework and required workplace skills, as well as inappropriate support structures and mechanisms for realistic on-the-job experiences. Most importantly, the findings enabled the researcher to develop an integrated conceptual training framework for recommendation to the MPD’s training to serve as a guideline for the development of a single curriculum that integrates theoretical knowledge, practical skills, and work experience. This would ensure that the MPOs are fully capacitated prior to their assessment in preparation for their occupational responsibilities. In that regard, MPOs are more closely associated with the practical value of the learning theoretical concepts. Finally, this study contributes to the training value and sustainable solution of the South African National Defence Force, the MPD, and the MPOs.Dyondzo leyi yi lave ku valanga hi vukheta na ku xopaxopa ku humelela (kumbe ku kayivela) ka migingiriko ya sweswi ya ndzetelo wa xiyenge xa Maphorisa ya Vusocha kumbe kharikhulamu eka vuswikoti byo endla ntirho bya le ntirhweni na ntokoto wa Vaofisiri va Maphorisa ya Vusocha(MPO) eka Vuthu ra Vuhlayiseki ra Afrika Dzonga (SANDF). Theme ra ‘ku humelela ka ndzetelo’ ri hlamusela ku tirha kahle ka ndzetelo eka ku seketela ku hundziseriwa ka vutivi, leswi ku nga mpimo wa le ndzhaku ka ndzetelo wa ku antswisiwa loku vonakaka eka vutivi, vuswikoti na mavonelo.
Dyondzo yi tirhisile dezayini ya endlelo ra ndzavisiso wo hlanganisiwa, leri hlohleteriwaka hi vonelo ra filosofi ya pragmatist. Endlelo ra swiyenge swinharhu ro hlengeleta datara ri tirhisiwile ku endlela ku endla matlhelo manharhu ya datara ya nhlayo na ya xiyimo ku suka eka milongoloko ya swivutiso na tiinthavhiyu to vulavurisana. Xiyenge xosungula xi katsa switirhisiwa swa ndzavisiso wa nhlayo hi ku tirhisa ndzavisiso wa swivutiso lowu kongomisiweke eka ku kambela ku tirha kahle ka ndzetelo wa vaofisiri wa Maphorisa ya Vusocha eka SANDF. Xiyenge xavumbirhi xi katsile tiinthavhiyu ta xiyimo xa munhu hi yexe leti kongomisiweke eka ku tiyisisa mivuyelo ya swivutiso hi mayelana na nkoka na ku tirha kahle ka vaofisiri va Xiyenge xa Maphorisa ya Vusocha. Nhlayo yo ringana vatekaxiave va 123 yi nghenelerile, eka dyondzo, lava eka vona 103 va nga hlawuriwa ku tekaxiave eka xiyenge xa nhlayo hi ku tirhisa xitirateji xa sampulu ya nkumbetelo. Loko, vatekaxiave va 20 va hlawuriwile hi ku tirhisa thekiniki ya sampulu yo tlovatlova ku tekaxiave eka xiyenge xa xiyimo hi ku tirhisa tiinthavhiyu to vulavurisana hi tiqinghjo ku sukela loko dyondzo yi endliwa hi nkarhi wa COVID 19 etikweni.
Swikongomelo swo hambanahambana swi hetisisiwile eka dyondzo leyi, ku nga:
• Ku valanga na ku hlamusela xileriso xa Xiyenge xa Masocha ya Vuphorisa;
• Ku kumisisa loko migingiriko ya sweswi ya ndzetelo wa MPD yi ri leyi tirhaka hi ndlela yo ringanela ku nyika vaofisiri va MP vuswikoti lebyi lavekaka bya le ntirhweni;
• Ku valanga, hlamusela na ku xopaxopa maendlelo lamanene ya ndzetelo wa maphorisa ya le kaya na matiko ya le handle; na
• Ku valanga, hlamusela na ku xopaxopa mitlhontlho ya sweswi ya ndzetelo wa MPD, swilaveko na ku hluvukisa rimba ra mianakanyo.
Leswi kumiweke eka dyondzo leyi swi humeserile erivaleni leswaku nhlayo ya mitlhontlho yi kona eka ndzetelo wa Xiyenge xa Maphorisa ya Vusocha, ku katsa ku kayivela ka switirhisiwa leswi faneleke swa ndzetelo, swilangutelo swa mudyondzi leswi nga hetisisiwangiku, ndzetelo wa MPD lowu nga fambelaniku na Rimba ra Tikhwalifikhexini ta Rixaka na vuswikoti bya le ntirhweni lebyi lavekaka, na swivumbeko leswi nga fanelangiku swa nseketelo na endlelo ra ntokoto wa xiviri eka ntirho. Xankoka, leswi kumiweke swi endlile leswaku mulavisisi a kota ku hluvukisa rimba ra ndzetelo wa mianakanyo leyi hlanganisiweke ku bumabumeriwa eka ndzetelo wa Xiyenge xa Vusocha bya Maphorisa ku letela ku hluvukisiwa ka kharikhulamu yin'we leyi hlanganisaka vutivi bya thiyori, vuswikoti byo endla ntirho, na ntokoto wa ntirho. Leswi swi ta tiyisisa leswaku tiMPO ti na vuswikoti byotala ti nga se kamberiwa hi ku lulamisela vutihlamuleri bya tona bya ntirho. Hi ndlela yaleyo, tiMPO ti ta hlangana swinene na nkoka lowu tirhaka wo dyondza tikhonsepe ta thiyori. Xohetelela, dyondzo yi ta nghenisa xiave eka nkoka wa ndzetelo na nhlamulo ya nkarhi woleha eka Vuthu ra Vusirhelelri ra Afrika Dzonga, Xiyenge xa Maphorisa ya Vusocha, na Vaofisiri va Maphorisa ya Vusocha.Lesifundvolucwaningo sihlose kuhlwaya ngeliso lekuhlaba nekuhlatiya (imphumelelo (nome kubete kwayo) kwemitamo yekucecesha Luphiko Lwetemaphoyisa Lwetemphi (i-MPD) nome ikharikhulamu lemayalena nemakhono laphatsekako asendzaweni yekusebenta kanye naloko Tiphatsimandla Temaphoyisa Etemphi (ema-MPO) lahlangabetana nako ekhatsi eMbutfweni Wavelonkhe waseNingizimu Afrika Wetekuvikela (i-SADF). Leligama lelitsi ‘kucecesha ngemphumelelo’ lichaza kukhipha umphumela lodzingekako wekuceceshwa ekwesekeleni kwendluliselwa lwati, lokusikalo sangemuva kwekuceceshwa setintfutfuko letibonakalako telwati, temakhono netimongcondvo.
Lesifundvolucwaningo silandzele tindlela letibhicene tesichamukelo selisu lelucwaningo, legcugcutelwe yindlela yekubuka tintfo ngekwebufilosofi yebuphragmathiki. Inchubo yetigaba letintsatfu yekugcogca idatha isetjentisiwe kute kwehlukanise katsatfu idatha yelizinga nelinani levela kumaphephambuto kanye nakuma-inthaviyu lasakuhleleka. Sigaba sekucala sifake ekhatsi indlela yelucwaningo lwelinani ngekusebentisa luklayo lwemaphephambuto lokuhloswe ngawo kuhlola kukhipha umphumela lodzingekako wekucecshwa kwetiphatsimandla teLuphiko Lwetemaphoyisa Lwetemphi ku-SANDF Sigaba sesibili sifake ekhatsi ema-inthaviyu elizinga lasakuhleleka alowo nalowo lokuhloswe ngawo kucinisekisa imiphumela yemaphephambuto macondzana nelizingasimo nekukhipha umphumela lodzingekako wetiphatsimandla teLuphiko Lwemaphoyisa Etemphi. Linani selilonkhe lebantfu la-123 labebatibandzakanyile kulesifundvolucwaningo, laba-103 babo bakhetfwa kutsi batibandzakanye kusigaba selizinga ngekusebentisa lisibuciko lembonakaliso lohlelekile. Ngaleso sikhatsi, kwakhetfwa labatibandzakanyako lbange-20 ngekutsi kusetjentiswe lisu lelilula lekukobola umbokakaliso kute batibandzakanye esigabeni selizinga nge-ma-inthaviyu lasakuhleleka labanjwe ngekusebentisa lucingo njengaloku lesifundvolucwaningo sentiwa ngesikhatsi se-COVID-19 kulelive.
Tinjongo letahlukahlukene tafezekiswa kulesifundvolucwaningo, letibitwa ngekutsi:
• Kuhlwaya nekuchaza linguyakwenta leLuphiko Lwemaphoyisa Lwetemphi;
• Kuncuma kutsi ngabe lemitamo lekhona yekucecesha iMPD yenele ngekwemphumelelo kunika tikhulu te-MP emakhono ladzingekako asendzaweni yekusebenta;
• Kuhlwaya, kuchaza nekuhlatiya tindlela letincono kakhulu tasekhaya netemave emhlaba tekucecesha emaphoyisa; kanye
• Nekuhlwaya, kuchaza nekuhlatiya tinsayeya letikhona tekucecesha i-MPD, tidzingo kanye nekusungula luhlakamsebenti.
Lokutfolwe ngulesifundvolucwaningo kuvete kutsi kunelinyenti letinsayeya letikhona ekucecesheni Luphiko Lwemaphoyisa Lwetemphi, lokufaka ekhatsi kweswelakala kwemitfombolusito lefanele yekucecesha, tifiso temfundzi letingakafezekiswa, kungahambisa kwekuceceshwa kwe-MPD neLuhlakamsebenti Lwavelonkhe Lweticu Temfundvo kanye nemakhono ladzingekako asemsebentini, kanye netinhlaka tekwesekela letingakafaneli kanye netindlela letiphatsekako letimayelana naloko lokuhlangabetanwa nako emsebentini. Lokubaluleke kakhulu, lokolokutfoliwe kusite umcwaningi kutsi akhone kusungula umcondvo weluhlakamsebenti loluhlanganisiswe kute aluncome ekucecesheni Luphiko Lwetemaphoyisa Lwemphi kute likhombe indlela ekusunguleni ikharikhulamu yinye lehlanganisa lwati lwetiyori, emakhono lentekako kanye naloko lokuhlangabetanwa nako emsebentini. Loku kutawucinisekisa kutsi ema-MPO anikwa ngalokuphelele emakhono ekusebenta ngembikwekutsi ahlolwe ekubalungiseleleni tibopho temsebenti wabo. Ngaleyo ndlela-ke, ema-MPO ayawuhambisana kakhulu nelizingagugu lelentekako lekufundza imicondvo yetetiyori. Kwekugcina, lesifundvolucwaningo sitawufaka ligalelo kulizingagugu lekucecesha kanye nesisombululo lesisimeme seMbutfo Wavelnkhe waseNingizimu Afrika Wetekuvikela, Luphiko Lwemaphoyisa Lwetemphi, kanye neTiphatsimandla Temaphoyisa Etemphi.D. Litt. et Phil. (Police Science)Police Practic
Housebreaking in Crystal Park Extension 32 : a victim risk perspective
No full textAbstract in English, Northen Sotho and ZuluThis research explored the phenomenon of housebreaking at Crystal Park Extension 32 from a victim risk perspective. Crystal Park Extension 32 area was developed more than 12 years ago and it is located on the eastern side of Benoni, Ekurhuleni Municipality (Gauteng Province). This area is a semi-suburb with 400± households. A year or two after the area was established, it was struck by a string of housebreaking incidents which left residents desperate for help. This triggered need to conduct this study. To accomplish this task, the qualitative approach, which applied the case study research design, was utilised. Since this research was qualitative in nature, two non-probability research methods were used to select participants. Convenience sampling was utilised to select eight (8) victims, the primary units of analysis, while purposive sampling was used to sample five (5) subject matter experts (SMEs), the secondary units of analysis. The SMEs included three (3) SAPS members from Crystal Park Police Station,Nyakisiso ye e sekasekile ditiragalo tse di diregilego ka Extension 32 Crystal Park tsa bohodu bja go thuba ka dintlong, go tswa go maitemogelo a batswasehlabelo. Lefelo la Crystal Park Extension 32 le hlomilwe mengwaga ya go feta ye 12 ye e fetilego gomme le ka lehlakoreng la ka bohlabela bja Benoni, Mmasepaleng wa Ekurhuleni (Profense ya Gauteng). Lefelo le ke lefelo la ka thoko ga toropo leo le nago le malapa a ka bago a 400. Ngwaga goba ye mebedi ka morago ga gore lefelo le le hlongwe, go ile gwa ba le ditiragalo tsa go thuba dintlo tseo di ilego tsa dira gore badudi ba hloke thuso. Se se ile sa dira gore go be le tlhokego ya go dira nyakisiso ye. Mokgwa wa khwalithethifi o somisitswe go kgoboketsa datha ka mokgwa wa go kgetha dikemedi fela go tswa go batswasehlabelo ba seswai (8), le go kgetha dikemedi ka morero ka go kgetha batseakarolo ba ditsebi ba ba hlano (5). Batseakarolo ba ditsebi bao ba somisitswego go nyakisiso ke maloko a mararo (3) a SAPS go tswa Seteiseneng sa Maphodisa sa Crystal Park, leloLolu cwaningo luhlole isenzeko sokugqekezwa kwezindlu e-Crystal Park Extension 32, ngokombono wengozi yesisulu. Indawo yase-Crystal Park Extension 32 yakhiwa eminyakeni engaphezu kweyi-12 edlule futhi itholakala ohlangothini olusempumalanga neBenoni, ngaphansi kwaMasipala Ekurhuleni (eSifundazweni sase-Gauteng). Le ndawo iyindawo esadolobha elinamakhaya angama-400±. Ngemva konyaka owodwa noma emibili kusukela le ndawo isunguliwe, kwahlaselwa uhide lwezigameko zokugqekezwa kwezindlu nokwashiya izakhamuzi zikhungathekile futhi zidinga usizo. Lokhu-ke kudale ukuthi kube nesidingo sokwenza lolu cwaningo. Ukufeza lo msebenzi, kwathathwa indlela yocwaningo echazayo futhi kwasetshenziswa nomklamo wocwaningo lwendaba. Njengoba lolu bekuwucwaningo lwendlela echazayo, kusetshenziswe izindlela ezimbili zocwaningo ezingalindelekile ukuze kukhethwe abahlanganyeli. Ukusampula kokuqoqwa kweminininigwane okufinyelela kalula kwasetshenziswa ukuze kukhethwe izisulu eziyisishiyagalombili (8), okungamayunithi ayinhloko okuhlaziyM.A. (Criminology)Criminology and Security Scienc
Developing of Tshivenda scientific language register for teaching agricultural sciences
No full textSouth Africa is a country known for its diversity, boasting 12 official languages, including Tshivenda, XiTsonga, SeSotho, SeTswana, SiSwati, SePedi, IsiNdebele, IsiZulu, IsiXhosa, Sign language, English, and Afrikaans. However, despite this linguistic richness, English and Afrikaans dominate as the primary languages of instruction in most schools, particularly in the teaching of Agricultural Sciences, which lack scientific language registers in indigenous languages. The South African government aims to rectify this by introducing indigenous languages as mediums of instruction in schools, presenting a significant opportunity for black African learners to engage with Agricultural Sciences in their native languages. Yet, the readiness and availability of teaching and learning resources in languages like Tshivenda pose critical challenges.
To address this gap, a study was undertaken to develop a Tshivenda scientific language register specifically tailored for teaching Animal Studies at the grade 10 levels. In its development, the researcher collaborated with various stakeholders, including Tshivenda curriculum advisors, teachers, textbook authors, and community elders. Their input was invaluable in identifying and creating Agricultural Sciences terms were lacking in Tshivenda. The study, conducted as a qualitative interpretative case study, aimed to explore the development and application of the Tshivenda scientific language register for Animal Studies. Through observations, semi-structured interviews, and diary entries, data were collected from teachers, learners, and parents using purposive sampling techniques.
Guided by social constructivism theory, which emphasizes language as a critical tool for communication and thought development through social interaction, the study revealed that the absence of Agricultural Sciences terminology in Tshivenda initially raised skepticism among some stakeholders. However, with collaborative efforts and a positive attitude towards indigenous languages, progress is evident. Despite challenges, the implementation of the Tshivenda scientific language register has shown promise in shaping classroom interactions and fostering meaningful learning experiences, ultimately leading to improved performance in Agricultural Sciences. The study recommends further development of scientific language registers for Agricultural Sciences, extending beyond Animal Studies to encompass other topics.Science and Technology Educatio
A framework for the adoption of digital solutions in South African state-owned enterprises (SOEs)
No full textAbstract in English, Sepedi and AfrikaansLike other countries, South Africa has several enterprises wholly or partially owned by the state, known as state-owned enterprises (SOEs). The South African Public Finance Management Act of 1999 (PFMA) indicates that there are nine Schedule 1 (constitutional) entities, 21 Schedule 2 (major public) entities, 155 Schedule 3 (other national public entities) entities, and 72 provincial entities. Digitalisation, especially through Fourth Industrial Revolution (4IR) technologies, promises numerous opportunities for SOEs, but it is uncertain to what extent they are positioned to embrace these opportunities to address their challenges. Following an inductive research approach and a qualitative research choice, scholarly literature on SOEs was researched, and sets of qualitative propositions were formulated. These propositions and existing technology adoption frameworks, notably the Technology-Organisation-Environment (TOE) framework, were used to define a conceptual digitalisation framework for 4IR adoption by SA SOEs. Executives from various SOEs were interviewed to enhance and validate the framework and explore the readiness of SOE leadership to accept digitalisation. The validation of the conceptual framework focused on six components: governance and leadership; digitalisation strategies; 4IR technologies; skills and training; the environment; and collaboration. Governance and risk management were noted as interrelated components. The SOE executives welcomed the framework, highlighting several challenges in their SOEs: change management; digitally savvy leadership; digital skills; regulation or policies; funding; and general support and willingness. The importance of adopting 4IR components, such as Blockchain, advanced analytics, artificial intelligence, the internet of things, robotic process automation, drones, and the like, was indicated as a pipe dream by most SOE executives, although some were already exploring certain 4IR initiatives. Also, the COVID-19 pandemic was found to be a wake-up call for SOE leadership, forcing them to think more about digitalisation. Executive collaboration was recommended at all levels regarding strategies, funding (collective buying), skills sharing, and research in 4IR, among other things. The interview findings prompted the definition of a set of additional propositions, which were used to enhance the framework. Future work in this area is noted as developing an SOE digitalisation strategy and developing toolsets to assist SOEs in 4IR digital adoption.Go swana le ka dinageng tse dingwe, Afrika Borwa e na le dikgwebo tse mmalwa tseo di lego tsa mmuso ka botlalo goba ka seripa, tseo di tsebjago bjalo ka dikgwebo tsa mmuso (di-SOE). Molao wa Taolo ya Ditshelete tsa Setshaba wa 1999 (PFMA) o laetsa gore go na le dihlongwa tse senyane tsa Setule ya 1 (tsa molaotheo), dihlongwa tsa Setule ya 2 (tse kgolo tsa setshaba), dihlongwa tse 155 tsa Setule ya 3 (dihlongwa tse dingwe tsa setshaba tsa bosetshaba), le dihlongwa tse 72 tsa diphrobentshe. Go tsenya lenaneong la titsithale, kudu ka go dirisa ditheknolotsi tsa Lebakanako la Tiriso ya Dikhomphutha go dira Mesomo (4IR), di tshephisa dibaka tse mmalwa tsa di-SOE, eupsa ga go na le bonnete bja gore di fihlile kae fao e lego gore di kgona go dirisa dibaka tse go rarolla ditlhohlo tsa tsona. Go latela mokgwa wa dinyakisiso wa go tla ka diphetho go ya ka maitemogelo le kgetho ya dinyakisiso tsa boleng, dingwalwa tsa dirutegi ka ga di-SOE di ile tsa nyakisiswa, gomme dikarolo tsa ditshisinyo tsa boleng di ile tsa hlangwa. Ditshisinyo tse le metheo ye e lego gona ya tiriso ya theknolotsi, tse e lego motheo wa Seemo sa Mekgatlo ya Theknolotsi (TOE), di ile tsa diriswa go hlalosa motheo wa go dirisa titsithale phethagatsong ya 4IR ka di-SOE tsa Afrika Borwa. Bahlankediphethisi go tswa ka go di-SOE tsa mehutahuta ba ile ba botsiswa dipotsiso ka nepo ya go maatlafatsa le go tiisetsa motheo wo le go lekola go itokisetsa ga baetapele ba di-SOE go amogela tiriso ya titsithale. Tiisetso ya motheo wo wa kgopolo e ile ya nepisa dikarolo tse tshela tse e lego: puso le boetapele; mekgwa ya tiriso ya titsithale; ditheknolotsi tsa 4IR; mabokgoni le tlhahlo; tikologo; le tirisano. Puso le taolo ya dikotsi di ile tsa lemogwa bjalo ka dikarolo tse di amanego. Bahlankediphethisi ba di-SOE ba ile ba amogela motheo wo, gomme ba laetsa ditlhohlo tse mmalwa ka go di-SOE tsa bona: taolo ya diphetogo; boetapele bjo bo amogelago tiriso ya titsithale; mabokgoni a tsa titsithale; melawana goba melaotshepetso; thuso ya ditshelete; le thekgo ka kakaretso le go nyaka. Bohlokwa bja go dirisa dikarolo tsa 4IR, go swana le Blockchain, ditshekatsheko tse di gatetsego pele, bohlale bja kekiso ya ditiro tsa batho ka metshene, tiriso ya inthanete, tiriso ya maitiriso a diroboto, diteroune, bjalobjalo, e laeditswe bjalo ka toro ya kgole ka bontsi bja bahlankediphethisi ba di-SOE, le ge e le gore ba bangwe ba sa lekola maithomelo a mangwe a 4IR. Gape, leuba la COVID-19 le ile la hwetsa e le temoso go baetapele ba di-SOE, gomme se sa ba gapaeletsa gore ba nagane kudu ka ga tiriso ya titsithale. Tirisano ya bahlankediphethisi e akantswe ka maemong ka moka mabapi le tiriso ya mekgwa, thuso ya ditshelete (go reka ka seboka), kabelano ya mabokgoni, le dinyakisiso ka go 4IR, gareng ga tse dingwe. Dikutollo tsa dipotsiso tseo di bego di botsiswa bahlankediphethisi di ile tsa hlohleletswa gore go be le tlhaloso ya sehlopha sa ditshisinyo tsa tlaleletso, tseo di
somisitswego go maatlafatsa motheo. Mosomo wa ka moso ka mo lekaleng le o bonwe bjalo ka go hlabolla leano la tiriso ya titsithale ka di-SOE le go tsweletsa ditlabelo tsa go thusa di-SOE ka go tiriso ya titsithale ka go 4IR.Suid-Afrika het, nes ander lande, verskeie ondernemings wat ten volle of gedeeltelik besit word deur die staat, bekend as staatsbeheerde ondernemings (SBO’s). Kragtens die Suid-Afrikaanse Wet op Openbare Finansiele Bestuur van 1999 is daar nege Skedule 1- (konstitusionele) entiteite, 21 Skedule 2- (hoof- publieke) entiteite, 155 Skedule 3- (ander nasionale publieke) entiteite en 72 provinsiale entiteite. Digitalisering, veral deur tegnologiee van die Vierde Industriele Revolusie, verseker verskeie geleenthede vir SBO’s, maar dit is onseker tot watter mate hulle geposisioneer is om hierdie geleenthede aan te gryp om hulle uitdagings aan te pak. Daar is ’n induktiewe navorsingsbenadering en ’n kwalitatiewe navorsingskeuse gevolg, en wetenskaplike literatuur oor SBO’s is nagevors, en stelle kwalitatiewe voorstelle is geformuleer. Hierdie voorstelle en bestaande raamwerke vir die aanname van tegnologie, veral die Tegnologie-Organisasie-Omgewing-raamwerk (Technology-Organisation-Environment (TOE) framework) is gebruik om ’n konseptuele digitaliseringsraamwerk te definieer vir Vierde Industriele Revolusie-aanname deur Suid-Afrikaanse SBO’s. Daar is onderhoude gevoer met bestuursamptenare van verskeie SBO’s om die raamwerk te bevorder en geldig te verklaar, en om die gereedheid van SBO-leierskap te verken om digitalisering te aanvaar. Die geldigverklaring van die konseptuele raamwerk het op ses komponente gefokus: regering en leierskap; digitaliseringstrategiee; Vierde Industriele Revolusie-tegnologiee; opleiding en vaardighede; die omgewing; en samewerking. Regering en risikobestuur is aangeteken as onderling verbonde komponente. Die SBO-bestuursbeamptes het die raamwerk verwelkom, en verskeie uitdagings in hulle SBO’s beklemtoon: hantering van verandering; digitaal kundige leierskap; digitale vaardighede; regulering van beleide; befondsing; en algemene ondersteuning en gewilligheid. Die belangrikheid om Vierde Industriele Revolusie-komponente aan te neem, soos blokketting (blockchain), gevorderde ontleedkunde, kunsmatige intelligensie, die Internet van Dinge (Internet of Things), robotagtige proses-outomatisering, hommeltuie (drones) en so meer, is aangedui as ’n dagdroom (pipe dream) vir die meeste SBO-bestuursbeamptes, hoewel sommige bestuursbeamptes reeds sekere Vierde Industriele Revolusie-inisiatiewe verken. Die COVID-19-pandemie was ook ’n wekroep vir SBO-leierskap, en het hulle gedwing om meer te dink oor digitalisering. Uitvoerende samewerking is aanbeveel op alle vlakke wat betref strategiee, befondsing (gesamentlike aankope), die deel van vaardighede, en navorsing oor die Vierde Industriele Revolusie, onder andere. Die onderhoud-bevindings het gelei tot die definisie van ’n stel bykomende voorstelle, wat gebruik is om die raamwerk te bevorder. Daar is aangeteken dat toekomstige werk op hierdie gebied die ontwikkeling van ’n SBO-digitaliseringstrategie en ontwikkeling van hulpmiddels om SBO’s te help met digitale aanname in die Vierde Industriele Revolusie insluit.D.B.L. (Business Leadership)Graduate School of Business Leadershi