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Impacts of fractional and fractal differential operators in applied sciences
No full textMathematical Science
Integration of ethnomathematics in the teaching of probability in secondary school mathematics in Zimbabwe
No full textUnderpinned by the social constructivism theory and the praxis of integrating ethnomathematics in the teaching of probability, this PAR developed a policy framework for facilitating the integration of ethno-mathematics in secondary school mathematics in the teaching of probability in Zimbabwe. A qualitative method approach was used in a case study of one rural secondary school. The study targeted rural secondary school mathematics teachers who were teaching Form Three classes. The school was purposively selected and so were the three form three mathematics teachers and the form three learners at that school who participated in this study. The study triangulated the research instruments which included semi-structured interviews, lesson observation schedules and post-lesson reflection interviews. The study developed an ethnomathematics instructional model which was found to successfully guide the participants to integrate ethnomathematics in the teaching of probability. Thematic analysis was used to analyse data which was wholly qualitative. Findings of this study reveal that the use of the ethnomathematics instructional models helped the participants to integrate ethnomathematics in the teaching of probability effectively. Teaching probability concepts using the ethnomathematics instructional model was also found to trigger improvements in the learners’ performance in probability. The two theories namely, Determination of Randomness Theory and Determination of Independent Outcome Theory which emerged from this study can guide mathematics teachers when incorporating cultural games in the teaching of probability concepts. Based on the findings of this study I conclude that the ethnomathematics instructional model when implemented properly improves the mathematics teachers’ ability to integrate ethnomathematics in the teaching of probability. The findings in this study have the potential to inform mathematics teachers, policy makers, and curriculum developers on the significance of implementing the ethnomathematics instructional model used in this study in schools. It is also advisable to carry out further studies to find out how the ethnomathematics instruction model can be used in other topics in mathematics.D. Phil. (Mathematics Education)Mathematics Educatio
Supply chain risks in a bulk import supply chain of commodity chemicals
No full textSummaries in English, Afrikaans and ZuluIn modern day supply chains, it has become important for all role players to not only be
aware of the risks associated with import supply chains in general, but more also
specifically in the commodity trade. Due to the nature and small margins in the commodity
trade industry it is crucial for the relevant role players to not only take note of these risks,
but to also develop strategies and techniques to mitigate and /or reduce these risks when
possible. In the ever-changing world where demand fluctuates, and the only constant is
change, it requires a supply chain that can adapt to external forces with techniques and
strategies that are suitable at that time. In order to understand risks and how to manage
them better, this dissertation will focus on the key risks involved in the bulk import supply
chain of soda ash, which is used in the manufacturing of many products, including wellknown
consumer products.
The study investigated various risks, supply chain risk management, and strategies to
manage these risks in a proactive and reactive way through collaboration, agility,
robustness, stability and flexibility. This study also tries to indicate the role and importance
of collaboration, integration and supply chain resilience. A quantitative research design
was used to gather the data, which included a questionnaire with close-ended questions
with scales from which respondents had to select the options with which they mostly
agreed. The major risks identified in the study are pandemics (COVID-19), port delays,
logistics outsourcing, labour strikes and infrastructure deterioration. The top five risk
mitigation strategies employed are flexible transport, collaboration with
suppliers/customers, resilient supply chain, works toward integration with
suppliers/customers and robust supply chain.In hedendaagse voorsieningskettings het dit belangrik geword vir alle rolspelers om nie
net bewus te wees van die risiko’s wat oor die algemeen met invoervoorsieningskettings
gepaardgaan nie, maar ook spesifiek in die kommoditeitshandel. Vanweë die aard van dié
bedryf en die klein marges in kommoditeitshandel, is dit noodsaaklik dat die relevante
rolspelers van hierdie risiko’s moet kennis dra, en strategieë en tegnieke moet ontwikkel
om die risiko’s te temper en/of te verminder waar moontlik. In die voortdurend
veranderende wêreld waar aanvraag wissel en waar verandering die enigste konstante is,
moet ’n voorsieningsketting in staat wees om by eksterne kragte te kan aanpas – met
tegnieke en strategieë wat op daardie tydstip geskik is. Om risiko’s te verstaan en beter
te kan bestuur, sal hierdie verhandeling fokus op die sleutelrisiko’s wat ter sake is in die
grootmaat-invoervoorsieningsketting van soda-as, wat gebruik word in die vervaardiging
van vele produkte, waaronder bekende verbruikersprodukte.
Die studie het ondersoek ingestel na verskillende risiko’s,
voorsieningskettingrisikobestuur, en strategieë om hierdie risiko’s proaktief en reaktief te
bestuur, deur samewerking, lenigheid, robuustheid, stabiliteit en soepelheid. Daar is ook
gepoog om die rol en belangrikheid van samewerking, integrering en
voorsieningskettingveerkrag aan te dui. ’n Kwantitatiewe navorsingsontwerp is gebruik om
die data in te samel, insluitende ’n vraelys met geslote vrae en skale waar respondente
dié opsies moes kies waarmee hulle die meeste saamstem. Die vernaamste risiko’s wat in
hierdie studie geïdentifiseer is, is pandemies (soos COVID-19), oponthoude by hawens,
logistieke uitkontraktering, werkstakings, en vervalle infrastruktuur. Die topvyfrisikotemperingstrategieë
wat ingespan word is buigsaamheid ten opsigte van vervoer,
samewerking met verskaffers en/of klante, veerkragtige voorsieningsketting, gerigtheid op
integrering met verskaffers en/of klante, en ’n kragtige voorsieningsketting.Uchungechunge lokuhlinzeka ezinsuku zanamuhla, sekubalulekile kubo bonke
ababambiqhaza ukuthi bangagcini nje ngokuqaphela ubungozi obuhambisana okulethwa
kochungechunge lokuhlinzeka kwempahla kwamanye amazwe ngokujwayelekile, kodwa
futhi, ikakhulukazi, ekuhwebeni kwempahla. Ngenxa yesimo kanye nemikhawulo
emincane embonini yohwebo lwempahla, kubalulekile ukuthi ababambiqhaza
abathintekayo bangagcini nje ngokuqaphela lezi zingozi, kodwa futhi bakhe amasu
nezindlela zokunciphisa kanye/noma zokwehlisa lezi zingozi uma kungenzeka. Emhlabeni
oguquguqukayo lapho isidingo sishintshashintsha, futhi okuwukuphela kwenguquko
engaguquki, kudinga uchungechunge lokuhlinzeka olungakwazi ukuzivumelanisa
namandla angaphandle ngamasu nezindlela ezifanele ngaleso sikhathi. Ukuze kuqondwe
ubungozi kanye nendlela yokuphatha kangcono, le ncwadi izogxila ezingozini ezibalulekile
ezikhona ochungechungeni lokuhlinzekwa kwenqwaba yesoda kwamanye amazwe,
olusetshenziswa ekukhiqizeni imikhiqizo eminingi, kuhlanganisa nemikhiqizo yabathengi
eyaziwayo.
Ucwaningo luphenye ubungozi obuhlukahlukene, ukuphathwa kwengcuphe
yochungechunge lokuhlinzeka, kanye namasu okulawula lobu bungozi ngendlela
esheshayo nesebenzayo ngokusebenzisana, ukushesha, ukuqina, ukuzinza
nokuvumelana nezimo. Lolu cwaningo luphinde luzame ukukhombisa indima kanye
nokubaluleka kokubambisana, ukuhlanganiswa kanye nokuqina kochungechunge
lokuhlinzeka. Kusetshenziswe idizayini yocwaningo lokulinganisa ukuze kuqoqwe idatha,
ehlanganisa nohlu lwemibuzo olunemibuzo evalekile enezilinganiso lapho abaphendulayo
bekufanele bakhethe khona abavumelana ngazo kakhulu. Izingozi ezinkulu eziphawulwe
ocwaningweni yizifo eziyiphandemikhi (ezifana ne-COVID-19), ukubambezeleka
kwechweba, ukukhishwa kwemisebenzi yezokuthutha, iziteleka zabasebenzi kanye
nokuwohloka kwengqalasizinda. Amasu amahlanu aphezulu okunciphisa ubungozi
asetshenziswayo kwezokuthutha ezivumelana nezimo, ukusebenzisana nabahlinzeki
kanye/noma amakhasimende, uchungechunge lokuhlinzeka kwempahla eqinile,
lusebenzela ukuhlanganiswa nabahlinzeki kanye/noma amakhasimende, kanye
nochungechunge oluqinile lokuhlinzeka ngezinto.M. Com. (Business Management)Business Managemen
Academic integrity, technical presentation and communication theory
No full textThis video provides guidance on academic integrity, technical presentation and communication theory.Communication Scienc
How do you expect us to survive? Lamentation of female sex workers in Zimbabwe during COVID-19 lockdown
No full textThe restrictive measures taken to curb and mitigate the spread of the corona virus of 2019 (COVID-19) had negative implications on the vulnerable populations. The most severely affected group among the vulnerable population were sex workers, whose work venues and customers were locked down. This descriptive phenomenological study explored effects of COVID-19 on female sex workers in Bulawayo, Zimbabwe. Snowballing sampling was used to recruit participants. Data were collected through in-depth face-to-face individual interviews with ten female sex workers. The sample size was determined by data saturation. Colaizzi's seven-step content analysis approach was followed to guide data analysis. Rigour was ensured by adhering to Guba and Lincoln's trustworthiness criteria. The study found that the lockdown measures impacted negatively on sex workers’ income, making it difficult for them to get money for food and rentals. In order to survive, sex workers adopted innovative entrepreneurship. Others engaged in risky sexual behaviours, further aggravating their situation emotionally and psychologically. It is recommended that the government and policy makers provide psychosocial and economic support to protect the rights of female sex workers in order to maintain the gains made in HIV response.College of Human Science
The relationship between employee well-being and organisational effectiveness in a bond origination company in South Africa
No full textAbstracts in English, Afrikaans and ZuluThe well-being of employees influenced the way in which they performed and ultimately impacted the effectiveness of an organisation. The interdependent and mutually beneficial relationship between an organisation and its employees needs to be addressed to adequately adapt to the increased change, competition and volatility within today’s world of work.
The overall objective of this study was to determine the relationship between the concepts of Employee Well-being (EWB) and Organisational Effectiveness (OE) in a bond origination company in South Africa. More specifically, the relationship between the constructs of EWB (namely Job satisfaction, Work engagement, Burnout and Workaholism) and a Composite OE Score. The measuring instruments used included the Job Satisfaction Questionnaire (JSQ), the Utrecht Work Engagement Scale (UWES), the Dutch Workaholism Scale (DWS), the Oldenburg Burnout Inventory (OBI) and the Organisational Performance Questionnaire (OPQ). A convenience sample of 203 respondents was achieved and included employees of all genders and managerial and non-managerial positions.
Results indicated that three of the four constructs of EWB, namely Burnout (r = -.452, p < .001), Job satisfaction (r = .667; p < .001) and Work Engagement (r = .587; p < .001) were found to be statistically significantly related to a Composite OE Score. The relationship between Workaholism and OE (r = -.060, p = .394) was weak, negative and not statistically significant. Furthermore, three of the four constructs of EWB are statistically significant predictors of a Composite OE Score, accounted for 99.3% of the variance of a Composite OE Score.Die welstand van werknemers beïnvloed hoe hulle presteer en uiteindelik die doeltreffendheid van 'n organisasie. Die interafhanklike en wedersydse voordelige verhouding tussen 'n organisasie en sy werknemers moet aangespreek word om genoegsaam aan te pas by die toenemende verandering, mededinging en onbestendigheid in die huidige wêreld van werk.
Die algehele doel van hierdie studie was om die verhouding tussen die beginsels van werknemerwelstand en organisatoriese doeltreffendheid in 'n verbandmakelaarmaatskappy in Suid-Afrika te bepaal. Meer spesifiek, om die verhouding te bepaal tussen die konstrukte van werknemerwelstand (naamlik werkbevrediging, werksbetrokkenheid, uitbranding en werkholisme) as 'n saamgestelde telling vir organisatoriese doeltreffendheid. Die meetinstrumente wat gebruik is sluit die werkbevredigingvraelys (JSQ), die Utrecht-werksbetrokkenheidskaal (UWES), die Nederlandse werkholismeskaal (DWS), die Oldenburg-uitbrandinginventaris (OBI) en die organisatoriese prestasievraelys (OPQ) in. 'n Gerieflikheidsteekproef van 203 respondente is bereik en sluit werknemers van alle geslagte en bestuurders en nie-bestuurders in.
Resultate toon dat drie van die vier konstrukte van werknemerwelstand, naamlik uitbranding (r = -.452; p < .001), werkbevrediging (r = -.667; p < .001) en werksbetrokkenheid (r = -.587; p < .001) bevind is om statisties beduidend te wees. Die verhouding tussen werkholisme en organisatoriese doeltreffendheid (r = -.060, p = .394) was swak, negatief en statisties nie beduidend nie. Verder is drie van die vier konstrukte van werknemerwelstand statisties beduidende voorspellers van 'n saamgestelde telling vir organisatoriese doeltreffendheid en is verantwoordelik vir 99.3% van die afwyking van 'n saamgestelde telling vir organisatoriese doeltreffendheid.Impilonhle yabasebenzi inomthelela kwindlela abasebenza ngayo kanye nokuba nomthelela ekusebenzeni kahle kwenhlangano. Ukuxhumana kanye nenzuzo kwinhlangothi zombili kubudlelwane phakathi kwenhlangano kanye nabasebenzi bayo kudinga ukuthi kubhekwane nakho ukwenza kuhambelana noshintsho olwenyukayo, ukuqhudelana kanye nezinguquko ezinkulu kumhlaba womsebenzi wanamuhla.
Injongo enkulukazi yalolu cwaningo bekuwukubona ubudlelwane phakathi kwemiqondo ye-Employee Well-being (EWB) kanye ne-Organisational Effectiveness (OE) kubumbano lobusunguli bezinkampani eNingizimu Afrika. Ikakhulukazi ukubona ubudlelwane phakathi komqondo we-EWB (okusho ukuneliseka ngomsebenzi, ukuzibandakanya emsebenzini, ukukhathala okukhulu kanye nokusebenza njalo ngokuzimisela okukhulu - workaholism) kanye ne-Composite OE Score. Ama-instrumenti okukala asetshenzisiwe abandakanya okubizwa nge-Job Satisfaction Questionnaire (JSQ) i-Utrecht Work Engagement Scale (UWES) kanye ne-Dutch Workaholism Scale (DWS), i-Oldenburg Burnout Inventory (OBI) kanye ne-Organisational Performance Questionnaire (OPQ). Kufinyelwe abaphendulu abangu 203 ngesampuli elula kanye nokubandakanya abasebenzi babo bonke ubulili kanye nabasebenzi emkhakheni wamamininjela (abaphathi) nabasebenzi abangebona abaphathi.
Imiphumela ikhombisa ukuthi imiqondo emithathu kwemine ye-EWB, okuyi-burnout (r = -.452, p < .001), i-job satisfaction (r = .667; p < .001) kanye ne-work engagement (r = .587; p < .001) kutholakale kuhambelana ne-Composite OE Score. Ubudlelwane phakathi kwe-Workaholism kanye ne-OE (r = -.060, p = .394) bebungaqinile kakhulu, ku-negative kanti futhi kungabalulekile kakhulu ngokwamanani. Okunye futhi, imiqondo emithathu kwemine ye-EWB ibaluleke kakhulu kwi-Composite OE Score kanti ibonise amanani ka 99.3% kwi-variance ye-Composite OE Score.M. Com. (Industrial and Organisational Psychology)Industrial and Organisational Psycholog
A social work study on factors contributing to a high rate of depression amongst university students from the age of 19 - 23 years
No full textEnglish and Afrikaans abstractsOver the past few decades, the increase in depression amongst university students has become a global concern. In attempting to understand the increase in the prevalence of depression amongst university students, it is therefore important to look at the key contributory factors resulting in this phenomenon. The high rate of depression and other mental health conditions among university students also indicates the need for preventative social work intervention, with the development of adequate and appropriate social support services for students. This study suggests a need to address a variety of factors affecting the mental health state of students. The purpose of this research highlights factors that explain the recent increase in depression among this generation. The findings, conclusion and recommendations of this study are hoped to help explain the factors behind the increasing rate of depression among university students. The aim of this study was to explore and describe the factors contributing to an increase in the rate of depression amongst university students in the age group of 19-23 years.
A qualitative research approach was utilised to gain an understanding of the factors contributing to the high rate in depression amongst university students from the age of 19-23 years. A case study, specifically collective case study research design, was employed. The sample was selected using purposive sampling. Data was acquired from students by means of in-depth interviews, through the virtual platform. Data was analysed according to thematic analysis and Lincoln and Guba’s model (1999) was employed to ensure the trustworthiness of the study. Throughout the study, the ethical considerations observed were informed consent, privacy, confidentiality, anonymity, the right not to be harmed, preparation of participants and management of information. Becks’ Cognitive Theory of Depression was used as a theoretical framework to guide this study.
It was revealed that there are a number of factors that contribute to the development of depression amongst university students. The study revealed that participants’ background and early life, high school experiences, participants’ personal circumstances and living arrangements and personal factors were contributory factors to depression among university students in the age group of 19-23 years. The study also revealed that support systems like family support, support provided on campus and strong faith, played a significant role in assisting students to manage depression more effectively.Oor die afgelope paar dekades is die toename in depressie onder universiteitstudente 'n wêreldwye bekommernis. In 'n poging om die toename in die voorkoms van depressie onder universiteitstudente te verstaan, is dit dus belangrik om te kyk na die belangrikste bydraende faktore wat tot hierdie verskynsel lei. Die hoë koers van depressie en ander geestesgesondheidstoestande onder universiteitstudente dui ook op die behoefte aan voorkomende maatskaplikewerk-intervensie, met die ontwikkeling van voldoende en toepaslike maatskaplike ondersteuningsdienste vir studente. Hierdie studie dui op 'n behoefte om 'n verskeidenheid faktore aan te spreek wat die geestesgesondheidstoestand van studente beïnvloed. Die doel van hierdie navorsing beklemtoon faktore wat die onlangse toename in depressie onder hierdie generasie verklaar. Die bevindinge, gevolgtrekking en aanbevelings van hierdie studie word gehoop om 'n begrip te gee van die faktore agter die toenemende koers van depressie onder universiteitstudente. Die doel van hierdie studie was om die faktore wat bydra tot 'n toename in die koers van depressie onder universiteitstudente in die ouderdomsgroep van 19-23 jaar te verken en te beskryf.
'n Kwalitatiewe navorsingsbenadering is gebruik om 'n begrip te verkry van die faktore wat bydra tot hoë koers in depressie onder universiteitstudente vanaf die ouderdom van 19-23 jaar. 'n Gevallestudie, spesifiek kollektiewe gevallestudie-navorsingsontwerp, is gebruik. Die monster is geselekteer met behulp van doelgerigte steekproefneming. Data is van studente ingesamel deur middel van in-diepte onderhoude, deur die virtuele platform. Data is volgens tematiese analise, ontleed en Lincoln en Guba se model (1999) is aangewend om die betroubaarheid van die studie te verseker. Dwarsdeur die studie is die volgende etiese oorwegings waargeneem: ingeligte toestemming, privaatheid, vertroulikheid, anonimiteit, die reg om nie benadeel te word nie, voorbereiding van deelnemers en bestuur van inligting. Becks se kognitiewe teorie van depressie is as 'n teoretiese raamwerk gebruik om hierdie studie te rig.
Dit is aan die lig gebring dat daar 'n aantal faktore bydra tot die ontwikkeling van depressie onder universiteitstudente. Die studie het aan die lig gebring dat deelnemers se agtergrond en vroeë lewe, hoërskoolervarings, deelnemers se persoonlike omstandighede en lewensreëlings en persoonlike faktore bydraende faktore was tot depressie onder universiteitstudente in die ouderdomsgroep van 19-23 jaar. Die studeer het ook aan die lig gebring dat ondersteuningstelsels soos gesinsondersteuning, ondersteuning op kampus en sterk geloof 'n beduidende rol gespeel het om studente te help om depressie meer effektief te oorkom.M.A. (Social Work)Social Wor
Setting, plot structure and narrative point of view in J.S. Shole's short story collection Ofoo, ke fano!
No full textThis study evaluates Shole's short stories in respect of setting, plo t structure and narrative point of view. It assesses how Shole manipulates these three aspects in the process of creating his narrative an. In analysing setting, attention is paid not only to the geographical position and time of the events, but also on the relationship between the place and the characters, as well as to the functionality of setting. The structure of the stories is evaluated according to the three phases, namely, exposition, developme nt and resolution. T he " focus is on whether these stories show the essentials of each of the three phases. The study also discusses how Shole uses flashback and foreshadowing to promote suspense and the interrelatedness of events. It examines how Shole manipulates the first person point of view to create a sense of involvement and closeness in the characters of the stories. It also discusses the author's utilisation of the third person omniscient point of view and dramatic point of view, and how the author probes the inner thoughts of the characters. The weaknesses of the author in using these points of view are also highlighted.M.A. (African Languages)African Language
An exploration of the integration of social media with organisational communication in a non-profit organisation: A case study of People Opposing Women Abuse (POWA)
Get PDFIn offering a platform for dialogue, social media has transformed one-way organisational communication with stakeholders into interactive communication. A review of the literature reveals that there is scant evidence concerning social media integration with organisational communication in non-profit organisations. The study sought to fill this gap by exploring this integration and proposing a framework for social media integration with organisational communication in a non-profit organisation. The proposed framework has the potential to be beneficial for non-profit organisations, as it can be used as a guideline for integrating social media with organisational communication. It can also be used as a yardstick to establish whether non-profit organisations have achieved their objectives of integrating social media with organisational communication.
A single case study approach through semi-structured interviews, focus group interviews and secondary data sources was used to collect data at People Opposing Women Abuse (POWA). The case study approach allowed the exploration of the integration of social media with organisational communication and revealed insights that could encourage non-profit organisations to adopt this approach to integration. Findings revealed that communication through cross media planning enables non-profit organisations to communicate consistent messages to stakeholders. In addition to that, evidence suggests that when organisational communication is integrated with social media, POWA is able to communicate consistent messages across the organisation.Communication Scienc
On the study of nuclear reaction mechanisms using exotic nuclei
Get PDFWe investigated the breakup dynamics of the 8B + 208Pb, 11Be + 64Zn, 11Be + 208Pb,
37Mg + 208Pb, 15C + 208Pb, 6Li + 209Bi reactions using the continuum discretized coupled
channels (CDCC) method. Additionally, we investigated the interesting few-body reaction
4He2 + 4He ! 4He + 4He + 4He using the CDCC. At a practical level, our choice of these
reactions was in
uenced by the availability of the experimental data on breakup, fusion,
and elastic scattering cross sections on one hand, and of the theoretical data on the other
which will make the comparison of our results easier. At the fundamental level, these
reactions give a window to explore the dynamics of the nuclear reaction mechanisms of
exotic nuclei.
It is found that the breakup cross section at deep sub-barrier energies is enhanced when the
continuum-continuum couplings are included for the 8B + 208Pb reaction. The complete
fusion cross section is also enhanced at sub-barrier energies but suppressed at abovebarrier
energies due to the continuum-continuum couplings. The breakup observables such
as total reaction, fusion and breakup cross sections, become almost independent of the
ground-state binding energy in the limit approaches zero for the 11Be+64Zn reaction.
It is observed that the rst-order perturbation theory can not explain the breakup of
a system whose ground state wave function becomes unbound whereas, in the CDCC
calculation, when the pure scattering wave function is replaced by the square-integral bin
wave functions, the breakup matrix elements have no convergence issues for both 11Be +
208Pb and 37Mg + 208Pb reactions. We found that the continuum-continuum couplings
and higher-order multipole transitions strongly suppress the nuclear breakup cross section
compared to the Coulomb breakup cross section in the reaction of 15C nucleus on heavy
target. It is found that the resonant states are strongly dominant for lower energies while
the non-resonant states are dominant for higher energies for 6Li+209Bi reaction. A strong
effect of the Helium-dimer continuum-continuum couplings is found on the elastic and
dissociation cross sections in the 4He2 + 4He ! 4He + 4He + 4He reaction. We thenconclude that these couplings are as important in atomic reactions as they are in nuclear reactions, and should be given attention in the analysis of reactions involving loosely-bound molecules.Ph. D. (Physics)Physic