A hybrid model building on prolepsis for effective practice teaching in pre-service life sciences teacher education
- De Beer, Josef, Gravett, Sarah
- Authors: De Beer, Josef , Gravett, Sarah
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/463784 , uj:41403 , Citation: De Beer, J. & Gravett, S., 2020, ‘A hybrid model building on prolepsis for effective practice teaching in pre-service life sciences teacher education’, in J. De Beer, N. Petersen & H.J. Van Vuuren (eds.), Becoming a teacher: Research on the work-integrated learning of student teachers (NWU Self-Directed Learning Series Volume 4), pp. 323–356, AOSIS, Cape Town. , DOI: https://doi.org/10.4102/aosis.2020.BK215.11
- Description: Abstract: The need for this research is substantiated by two sets of research literature, namely, literature that belabours the so-called ‘theory–practice divide’ in teacher education and, secondly, literature on the dismal state of science education in South Africa. This chapter critically looks at the pre-service education of life sciences student teachers and reports on an intervention that was conceptualised and implemented by the UJ to address some of the shortcomings of the customary school practice experience (or WIL). Teacher education institutions are often criticised as being distant from practice and therefore ineffective in preparing student teachers for the demands of the teaching profession. This is especially true in the teaching of the natural sciences (including life sciences and physical sciences) – a national priority in a country that is not performing well in international benchmark tests. This chapter reports on an innovative intervention of the UJ whereby undergraduate student teachers were given the opportunity to teach life sciences (FET Grades 10–12) to learners from a top-performing school that did not offer life sciences as a subject. The authors will indicate how this intervention addressed three fundamental problems associated with learning to teach, namely, (1) the problem of the apprenticeship of observation; (2) the problem of enactment and (3) the problem of complexity. This qualitative research focussed on how this intervention contributed to the 81 student teachers’ (who participated) professional development. The Japanese lesson study approach, where student teachers prepared and presented lessons in groups of four, were further enhanced with the technique of prolepsis, which involves structuring learning opportunities in a way that assumes that the student teachers know more than they actually do. By using such a prolepsis approach in teacher education, the teacher educator can explore the optimal distance between the student teacher’s actual and potential development...
- Full Text:
- Authors: De Beer, Josef , Gravett, Sarah
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/463784 , uj:41403 , Citation: De Beer, J. & Gravett, S., 2020, ‘A hybrid model building on prolepsis for effective practice teaching in pre-service life sciences teacher education’, in J. De Beer, N. Petersen & H.J. Van Vuuren (eds.), Becoming a teacher: Research on the work-integrated learning of student teachers (NWU Self-Directed Learning Series Volume 4), pp. 323–356, AOSIS, Cape Town. , DOI: https://doi.org/10.4102/aosis.2020.BK215.11
- Description: Abstract: The need for this research is substantiated by two sets of research literature, namely, literature that belabours the so-called ‘theory–practice divide’ in teacher education and, secondly, literature on the dismal state of science education in South Africa. This chapter critically looks at the pre-service education of life sciences student teachers and reports on an intervention that was conceptualised and implemented by the UJ to address some of the shortcomings of the customary school practice experience (or WIL). Teacher education institutions are often criticised as being distant from practice and therefore ineffective in preparing student teachers for the demands of the teaching profession. This is especially true in the teaching of the natural sciences (including life sciences and physical sciences) – a national priority in a country that is not performing well in international benchmark tests. This chapter reports on an innovative intervention of the UJ whereby undergraduate student teachers were given the opportunity to teach life sciences (FET Grades 10–12) to learners from a top-performing school that did not offer life sciences as a subject. The authors will indicate how this intervention addressed three fundamental problems associated with learning to teach, namely, (1) the problem of the apprenticeship of observation; (2) the problem of enactment and (3) the problem of complexity. This qualitative research focussed on how this intervention contributed to the 81 student teachers’ (who participated) professional development. The Japanese lesson study approach, where student teachers prepared and presented lessons in groups of four, were further enhanced with the technique of prolepsis, which involves structuring learning opportunities in a way that assumes that the student teachers know more than they actually do. By using such a prolepsis approach in teacher education, the teacher educator can explore the optimal distance between the student teacher’s actual and potential development...
- Full Text:
COVID-19 education responses and OER–OEP policy in the commonwealth
- Authors: Isaacs, Shafika
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/459590 , uj:40867 , Citation: Isaacs, S. 2020. COVID-19 education responses and OER–OEP policy in the commonwealth.
- Description: Abstract: Please refer to full text to view abstract.
- Full Text:
- Authors: Isaacs, Shafika
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/459590 , uj:40867 , Citation: Isaacs, S. 2020. COVID-19 education responses and OER–OEP policy in the commonwealth.
- Description: Abstract: Please refer to full text to view abstract.
- Full Text:
Decentralizing emerging markets to prepare for Industry 4.0 : modernizing policies and the role of higher education
- Lambrechts, Wynand, Sinha, Saurabh, Marwala, Tshilidzi
- Authors: Lambrechts, Wynand , Sinha, Saurabh , Marwala, Tshilidzi
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/460204 , uj:40944 , Citation: Lambrechts, W., Sinha, S. & Marwala, T. 2020. Decentralizing emerging markets to prepare for Industry 4.0 : modernizing policies and the role of higher education.
- Description: Abstract: This chapter investigates socioeconomic policies, technical focus, and academic necessities in core competencies and skills development to prepare emerging markets for the technological disruption of the Fourth Industrial Revolution (Industry 4.0 or 4IR). This chapter reviews the potential that Industry 4.0 has on creating sustainable work opportunities in emerging markets that have typically not benefitted equally (compared to developed markets) in earlier industrial revolutions. Industry 4.0 is unique in its ubiquity through the internet and allows remote participation in Industry 4.0. Emerging markets are urged to address challenges in adapting Industry 4.0 early and prepare for its maturation. Policy gaps in broadband connectivity and equal gender distribution in the information and communications industry are reviewed and presented in this chapter. Following this review, the role that higher education must play in skills development for Industry 4.0. Brazil, Russia, India, China, and South Africa have been identified as significant role-players in addressing policy gaps that could hinder Industry 4.0 development in emerging markets. Through Industry 4.0, a global shift towards a decentralized industry is occurring and this chapter additionally reviews the factors that influence this shift.
- Full Text:
- Authors: Lambrechts, Wynand , Sinha, Saurabh , Marwala, Tshilidzi
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/460204 , uj:40944 , Citation: Lambrechts, W., Sinha, S. & Marwala, T. 2020. Decentralizing emerging markets to prepare for Industry 4.0 : modernizing policies and the role of higher education.
- Description: Abstract: This chapter investigates socioeconomic policies, technical focus, and academic necessities in core competencies and skills development to prepare emerging markets for the technological disruption of the Fourth Industrial Revolution (Industry 4.0 or 4IR). This chapter reviews the potential that Industry 4.0 has on creating sustainable work opportunities in emerging markets that have typically not benefitted equally (compared to developed markets) in earlier industrial revolutions. Industry 4.0 is unique in its ubiquity through the internet and allows remote participation in Industry 4.0. Emerging markets are urged to address challenges in adapting Industry 4.0 early and prepare for its maturation. Policy gaps in broadband connectivity and equal gender distribution in the information and communications industry are reviewed and presented in this chapter. Following this review, the role that higher education must play in skills development for Industry 4.0. Brazil, Russia, India, China, and South Africa have been identified as significant role-players in addressing policy gaps that could hinder Industry 4.0 development in emerging markets. Through Industry 4.0, a global shift towards a decentralized industry is occurring and this chapter additionally reviews the factors that influence this shift.
- Full Text:
Gender diversity and the transformation of research excellence
- Authors: Kraemer-Mbula, Erika
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/445911 , uj:39030 , Citation: Kraemer-Mbula, E. 2020. Gender diversity and the transformation of research excellence.
- Description: Abstract: Please refer to full text to view abstract.
- Full Text:
- Authors: Kraemer-Mbula, Erika
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/445911 , uj:39030 , Citation: Kraemer-Mbula, E. 2020. Gender diversity and the transformation of research excellence.
- Description: Abstract: Please refer to full text to view abstract.
- Full Text:
High value-added metal-organic frameworks from polyethylene terephthalate waste as linker source
- Dyosiba, Xoliswa L., Ren, Jianwei
- Authors: Dyosiba, Xoliswa L. , Ren, Jianwei
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/462676 , uj:41264 , Citation: Dyosiba, X.L. & Ren, J. 2020. High value-added metal-organic frameworks from polyethylene terephthalate waste as linker source.
- Description: Abstract: Metal-organic frameworks (MOFs), in particular 1,4-benzenedicarboxylic acid (BDC)-based MOFs, have been explored as one of the most important prototype MOFs for various applications. The applications vary from gas storage, catalysts, nuclear wastewater treatment, and detoxifi cation of chemical warfare agents, etc. due to their high moisture stability, good thermal stability, unusually large pore volume and surface area. However, one of the impediments in the industrial application of these MOFs is a lack of cheap, environmentally benign and scalable synthesis methods. With the intent of contributing towards attaining a solution, the development of a facile, highly reproducible and environmentally friendly way to synthesize BDC-based MOFs using polyethylene terephthalate (PET) waste as a direct precursor is explored. The synthesized PET-derived MOFs are proposed as possible adsorbents for removal of radioactive isotopes or/and heavy metals from water.
- Full Text:
- Authors: Dyosiba, Xoliswa L. , Ren, Jianwei
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/462676 , uj:41264 , Citation: Dyosiba, X.L. & Ren, J. 2020. High value-added metal-organic frameworks from polyethylene terephthalate waste as linker source.
- Description: Abstract: Metal-organic frameworks (MOFs), in particular 1,4-benzenedicarboxylic acid (BDC)-based MOFs, have been explored as one of the most important prototype MOFs for various applications. The applications vary from gas storage, catalysts, nuclear wastewater treatment, and detoxifi cation of chemical warfare agents, etc. due to their high moisture stability, good thermal stability, unusually large pore volume and surface area. However, one of the impediments in the industrial application of these MOFs is a lack of cheap, environmentally benign and scalable synthesis methods. With the intent of contributing towards attaining a solution, the development of a facile, highly reproducible and environmentally friendly way to synthesize BDC-based MOFs using polyethylene terephthalate (PET) waste as a direct precursor is explored. The synthesized PET-derived MOFs are proposed as possible adsorbents for removal of radioactive isotopes or/and heavy metals from water.
- Full Text:
Liberationist conversion and ethnography in the decolonial moment : a finnish theologian/ethicist reflects in South Africa
- Authors: Hankela, Elina
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/433011 , uj:37426 , ISSN: 1876-2247 , Citation: Hankela, E. 2020. Liberationist conversion and ethnography in the decolonial moment : a finnish theologian/ethicist reflects in South Africa. , DOI:10.1163/9789004412255_005
- Description: Abstract: Please refer to full text to view abstract
- Full Text:
- Authors: Hankela, Elina
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/433011 , uj:37426 , ISSN: 1876-2247 , Citation: Hankela, E. 2020. Liberationist conversion and ethnography in the decolonial moment : a finnish theologian/ethicist reflects in South Africa. , DOI:10.1163/9789004412255_005
- Description: Abstract: Please refer to full text to view abstract
- Full Text:
Modelling nanoparticles parameters for antimicrobial activity
- Razanamahandry, L.C., Bashir, A.K.H., Kaviyarasu, K., Mekuto, Lukhanyo, Ntwampe, S.K.O., Maaza, M.
- Authors: Razanamahandry, L.C. , Bashir, A.K.H. , Kaviyarasu, K. , Mekuto, Lukhanyo , Ntwampe, S.K.O. , Maaza, M.
- Date: 2020
- Subjects: Antimicrobial activity , Multiple correspondence analysis , Nanoparticles
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/438962 , uj:38173 , Citation: Razanamahandry, L.C. et al. 2020. Modelling nanoparticles parameters for antimicrobial activity.
- Description: Abstract: Current studies reveal the antimicrobial activity effectiveness of various nanoparticles (NPs) towards numerous microorganism. The present study reports on statistical models which define suitable parameters to improve the efficacy of NPs antimicrobial activity. Data on NPs antimicrobial activity were collected, focusing on parameters such as the NPs type and size (nm), bacterial strains and its initial density (O.D.600nm), inhibition zone (IZ) size (mm), contact time (h), well and disc diffusion size (mm) and Minimum Inhibitory Concentration (MIC) (μg/mL). Correlation between these parameters were modelled by using multiple correspondence analysis (MCA) and principal component analysis (PCA) for qualitative and quantitative analyses, respectively. Results showed a significant positive correlation between the IZ size and the following parameters: MIC, well size and disc diffusion size with a Pearson ratio 95.98 %, 93.99 % and 94.82 % (α = 0.5), respectively. Antibacterial affinity between Ag, SiO2 and ZnO NPs with the IZ of strain bacteria gram-positive was obtained. In addition, bacteria gram negative and Fungi have an affinity with the La-ZnO and Ag NPs. Antimicrobial tests with NPs could be improved by varying not only the NPs concentration but also the well or disc diffusion size. The NPs type should be chosen as a function of the bacteria gram stain type for higher efficacy.
- Full Text:
- Authors: Razanamahandry, L.C. , Bashir, A.K.H. , Kaviyarasu, K. , Mekuto, Lukhanyo , Ntwampe, S.K.O. , Maaza, M.
- Date: 2020
- Subjects: Antimicrobial activity , Multiple correspondence analysis , Nanoparticles
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/438962 , uj:38173 , Citation: Razanamahandry, L.C. et al. 2020. Modelling nanoparticles parameters for antimicrobial activity.
- Description: Abstract: Current studies reveal the antimicrobial activity effectiveness of various nanoparticles (NPs) towards numerous microorganism. The present study reports on statistical models which define suitable parameters to improve the efficacy of NPs antimicrobial activity. Data on NPs antimicrobial activity were collected, focusing on parameters such as the NPs type and size (nm), bacterial strains and its initial density (O.D.600nm), inhibition zone (IZ) size (mm), contact time (h), well and disc diffusion size (mm) and Minimum Inhibitory Concentration (MIC) (μg/mL). Correlation between these parameters were modelled by using multiple correspondence analysis (MCA) and principal component analysis (PCA) for qualitative and quantitative analyses, respectively. Results showed a significant positive correlation between the IZ size and the following parameters: MIC, well size and disc diffusion size with a Pearson ratio 95.98 %, 93.99 % and 94.82 % (α = 0.5), respectively. Antibacterial affinity between Ag, SiO2 and ZnO NPs with the IZ of strain bacteria gram-positive was obtained. In addition, bacteria gram negative and Fungi have an affinity with the La-ZnO and Ag NPs. Antimicrobial tests with NPs could be improved by varying not only the NPs concentration but also the well or disc diffusion size. The NPs type should be chosen as a function of the bacteria gram stain type for higher efficacy.
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Moments of the discounted aggregate claims with delay inter-occurrence distribution and dependence introduced by a FGM Copula
- Authors: Adékambi, Franck
- Date: 2020
- Subjects: Compound delay-Poisson process , Discounted aggregrate claims , Moments
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/415938 , uj:35164
- Description: Abstract: , In this chapter, with renewal argument, we derive higher simple moments of the Discounted Compound Delay Renewal Risk Process (DCDRRP) when introducing dependence between the inter-occurrence time and the subsequent claim size. To illustrate our results, we assume that the inter-occurrence time is following a delayPoisson process and the claim amounts is following a mixture of Exponential distribution, we then provide numerical results for the first two moments. The dependence structure between the inter-occurrence time and the subsequent claim size is defined by a Farlie-Gumbel-Morgenstern copula. Assuming that the claim distribution has finite moments, we obtain a general formula for all the moments of the DCDRRP process.
- Full Text:
- Authors: Adékambi, Franck
- Date: 2020
- Subjects: Compound delay-Poisson process , Discounted aggregrate claims , Moments
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/415938 , uj:35164
- Description: Abstract: , In this chapter, with renewal argument, we derive higher simple moments of the Discounted Compound Delay Renewal Risk Process (DCDRRP) when introducing dependence between the inter-occurrence time and the subsequent claim size. To illustrate our results, we assume that the inter-occurrence time is following a delayPoisson process and the claim amounts is following a mixture of Exponential distribution, we then provide numerical results for the first two moments. The dependence structure between the inter-occurrence time and the subsequent claim size is defined by a Farlie-Gumbel-Morgenstern copula. Assuming that the claim distribution has finite moments, we obtain a general formula for all the moments of the DCDRRP process.
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Open innovation in Africa : current realities, future scenarios, and scalable solutions
- De Beer, Jeremy, Armstrong, Chris, Elahi, Shirin, Kawooya, Dick, Kramer-Mbula, Erika, Ncube, Caroline, Oguamanam, Chidi, Rizk, Nagla, Rutenberg, Isaac, Schonwetter, Tobias
- Authors: De Beer, Jeremy , Armstrong, Chris , Elahi, Shirin , Kawooya, Dick , Kramer-Mbula, Erika , Ncube, Caroline , Oguamanam, Chidi , Rizk, Nagla , Rutenberg, Isaac , Schonwetter, Tobias
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/446166 , uj:39060 , Citation: De Beer, J. et al. 2020. Open innovation in Africa : current realities, future scenarios, and scalable solutions.
- Description: Abstract: Please refer to full text to view abstract
- Full Text:
- Authors: De Beer, Jeremy , Armstrong, Chris , Elahi, Shirin , Kawooya, Dick , Kramer-Mbula, Erika , Ncube, Caroline , Oguamanam, Chidi , Rizk, Nagla , Rutenberg, Isaac , Schonwetter, Tobias
- Date: 2020
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/446166 , uj:39060 , Citation: De Beer, J. et al. 2020. Open innovation in Africa : current realities, future scenarios, and scalable solutions.
- Description: Abstract: Please refer to full text to view abstract
- Full Text:
Positive and negative feelings of learning with digital technologies among higher education students in Ghana
- Armah, Justice, Van Der Westhuizen, Duan
- Authors: Armah, Justice , Van Der Westhuizen, Duan
- Date: 2020
- Subjects: Digital technology , Negative feelings , Positive feelings
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/438994 , uj:38177 , Citation: Armah, J. & Van Der Westhuizen, D. 2020. Positive and negative feelings of learning with digital technologies among higher education students in Ghana.
- Description: Abstract:
- Full Text:
- Authors: Armah, Justice , Van Der Westhuizen, Duan
- Date: 2020
- Subjects: Digital technology , Negative feelings , Positive feelings
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/438994 , uj:38177 , Citation: Armah, J. & Van Der Westhuizen, D. 2020. Positive and negative feelings of learning with digital technologies among higher education students in Ghana.
- Description: Abstract:
- Full Text:
Post digital dialogue and activism in the public sphere
- Benecke, Dalien René, Verwey, Sonja
- Authors: Benecke, Dalien René , Verwey, Sonja
- Date: 2020
- Subjects: Post digital dialogue , Activism , Biopower
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/456810 , uj:40481 , Citation: Benecke, D.R. & Verwey, S. 2020. Post digital dialogue and activism in the public sphere.
- Description: Abstract: Dialogue in the public sphere includes the biopower of the individual, his or her agency and legitimacy as an activist. Digital technology and social media platforms provide individuals and groups with opportunities to communicate their personal experiences, and to share their opinions and views within various continually evolving digital networks that may or may not consist of structures that can facilitate protest action. Digital dialogue has drastically altered our social and political realities as well as our modes of participation within the virtual public spheres. The purpose with this conceptual paper is to explore the opportunities dialogue in the virtual public sphere offers political protestors to influence more diverse groups, increase their resistance of normative hierarchies and improve quality of participation from like-minded citizens. The discussion is contextualised within a political protest in the Alexandra Township, South Africa.
- Full Text:
- Authors: Benecke, Dalien René , Verwey, Sonja
- Date: 2020
- Subjects: Post digital dialogue , Activism , Biopower
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/456810 , uj:40481 , Citation: Benecke, D.R. & Verwey, S. 2020. Post digital dialogue and activism in the public sphere.
- Description: Abstract: Dialogue in the public sphere includes the biopower of the individual, his or her agency and legitimacy as an activist. Digital technology and social media platforms provide individuals and groups with opportunities to communicate their personal experiences, and to share their opinions and views within various continually evolving digital networks that may or may not consist of structures that can facilitate protest action. Digital dialogue has drastically altered our social and political realities as well as our modes of participation within the virtual public spheres. The purpose with this conceptual paper is to explore the opportunities dialogue in the virtual public sphere offers political protestors to influence more diverse groups, increase their resistance of normative hierarchies and improve quality of participation from like-minded citizens. The discussion is contextualised within a political protest in the Alexandra Township, South Africa.
- Full Text:
Tweeting the July 2018 Elections in Zimbabwe
- Munoriyarwa, Allen, Chambwera, Collen
- Authors: Munoriyarwa, Allen , Chambwera, Collen
- Date: 2020
- Subjects: Elections , Hashtag , MDC
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/436196 , uj:37828 , Citation: Munoriyarwa A., Chambwera C. (2020) Tweeting the July 2018 Elections in Zimbabwe. In: Ndlela M., Mano W. (eds) Social Media and Elections in Africa, Volume 1. Palgrave Macmillan, Cham. https://doi.org/10.1007/978-3-030-30553-6_5
- Description: Abstract: This chapter discusses the use of Twitter in mediating Zimbabwe’s 2018 elections. It provides an understanding of how two visible and contesting groups appropriated the platform during this period. The chapter responds to two specific questions: In what ways did the contesting groups make use of Twitter during the election period? What themes emerged from this use of the platform? It finds that Twitter became a space where the physical violence prevalent in Zimbabwe’s previous elections was enacted through discourse. It was also a space where opposition supporters challenged the hegemony of the ruling party and provided a space for political resistance. It further finds that there is an overall decline in civility on the platform with regard to election discourses.
- Full Text: false
- Authors: Munoriyarwa, Allen , Chambwera, Collen
- Date: 2020
- Subjects: Elections , Hashtag , MDC
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/436196 , uj:37828 , Citation: Munoriyarwa A., Chambwera C. (2020) Tweeting the July 2018 Elections in Zimbabwe. In: Ndlela M., Mano W. (eds) Social Media and Elections in Africa, Volume 1. Palgrave Macmillan, Cham. https://doi.org/10.1007/978-3-030-30553-6_5
- Description: Abstract: This chapter discusses the use of Twitter in mediating Zimbabwe’s 2018 elections. It provides an understanding of how two visible and contesting groups appropriated the platform during this period. The chapter responds to two specific questions: In what ways did the contesting groups make use of Twitter during the election period? What themes emerged from this use of the platform? It finds that Twitter became a space where the physical violence prevalent in Zimbabwe’s previous elections was enacted through discourse. It was also a space where opposition supporters challenged the hegemony of the ruling party and provided a space for political resistance. It further finds that there is an overall decline in civility on the platform with regard to election discourses.
- Full Text: false
Work-integrated learning and teaching schools : the University of Johannesburg teaching school experience
- Ramsaroop, Sarita, Petersen, Nadine, Gravett, Sarah
- Authors: Ramsaroop, Sarita , Petersen, Nadine , Gravett, Sarah
- Date: 2020
- Subjects: Teaching schools , Work-integrated learning , Theory
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/462660 , uj:41262 , Citation: Ramsaroop, S., Petersen, N. & Gravett, S., 2020, ‘Work-integrated learning and teaching schools: The University of Johannesburg teaching school experience’, in J. De Beer, N. Petersen & H.J. Van Vuuren (eds.), Becoming a teacher: Research on the work-integrated learning of student teachers (NWU Self-Directed Learning Series Volume 4), pp. 89–114, AOSIS, Cape Town. https://doi.org/10.4102/aosis.2020.BK215.04
- Description: Abstract: In this chapter, we report on a study that employed a generic qualitative research design to explore how learning in and from practice, in a curriculum designed to achieve congruence between coursework and fieldwork, relates to student teachers’ learning at other schools they attend for WIL. When the University of Johannesburg (UJ), Faculty of Education established a ‘teaching school’ (TS) in 2010, the staff had no existing model based on which to plan. We worked from the idea that student teachers’ practicum in the TS could work in tandem with their WIL at other schools, in order to promote learning in and from practice, for practice. A shared vision of the kind of teacher we wished to produce was key, both within the programme itself and in terms of how coursework and practical experience/fieldwork were brought together. The central organising principle of child study not only brought cohesion to the programme but was also dependent on strong partnerships with expert teachers in the two settings who could operate as good mentors. Although such a vision is achievable at a TS, we found that building a relationship of equivalence demands a great deal of commitment and the willingness to compromise by both parties. This kind of relationship building was not possible at the WIL schools. However, we were motivated by the opportunity to combine practice in both TS and WIL schools for enabling student teachers to learn in and from practice at the TS to provide a solid foundation for learning during WIL at other schools. The data point to considerable congruence between student teachers learning in the TS and in coursework, but student teachers learning at WIL are more often a source of tension. We reasoned that if they have a vision of what good teaching is about from their experience at the TS, it would provide them with a benchmark of what to aspire for when placed in schools where this was absent.
- Full Text:
- Authors: Ramsaroop, Sarita , Petersen, Nadine , Gravett, Sarah
- Date: 2020
- Subjects: Teaching schools , Work-integrated learning , Theory
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/462660 , uj:41262 , Citation: Ramsaroop, S., Petersen, N. & Gravett, S., 2020, ‘Work-integrated learning and teaching schools: The University of Johannesburg teaching school experience’, in J. De Beer, N. Petersen & H.J. Van Vuuren (eds.), Becoming a teacher: Research on the work-integrated learning of student teachers (NWU Self-Directed Learning Series Volume 4), pp. 89–114, AOSIS, Cape Town. https://doi.org/10.4102/aosis.2020.BK215.04
- Description: Abstract: In this chapter, we report on a study that employed a generic qualitative research design to explore how learning in and from practice, in a curriculum designed to achieve congruence between coursework and fieldwork, relates to student teachers’ learning at other schools they attend for WIL. When the University of Johannesburg (UJ), Faculty of Education established a ‘teaching school’ (TS) in 2010, the staff had no existing model based on which to plan. We worked from the idea that student teachers’ practicum in the TS could work in tandem with their WIL at other schools, in order to promote learning in and from practice, for practice. A shared vision of the kind of teacher we wished to produce was key, both within the programme itself and in terms of how coursework and practical experience/fieldwork were brought together. The central organising principle of child study not only brought cohesion to the programme but was also dependent on strong partnerships with expert teachers in the two settings who could operate as good mentors. Although such a vision is achievable at a TS, we found that building a relationship of equivalence demands a great deal of commitment and the willingness to compromise by both parties. This kind of relationship building was not possible at the WIL schools. However, we were motivated by the opportunity to combine practice in both TS and WIL schools for enabling student teachers to learn in and from practice at the TS to provide a solid foundation for learning during WIL at other schools. The data point to considerable congruence between student teachers learning in the TS and in coursework, but student teachers learning at WIL are more often a source of tension. We reasoned that if they have a vision of what good teaching is about from their experience at the TS, it would provide them with a benchmark of what to aspire for when placed in schools where this was absent.
- Full Text:
Empowering learners using active learning in higher education institutions
- Sewagegn, Abatihun Alehegn, Diale, Boitumelo M.
- Authors: Sewagegn, Abatihun Alehegn , Diale, Boitumelo M.
- Date: 2019
- Subjects: Active learning , Empowerment , Higher education institution
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/404591 , uj:33936 , Citation: Sewagegn, A.A. & Diale, B.M. 2019. Empowering learners using active learning in higher education institutions.
- Description: Abstract: Higher education institutions are expected to produce skillful, problem solver, and competent graduates. This becomes possible when the instructors are using the appropriate teaching methodology and the learners are active and empowered in the teachinglearning process. In relation to this, constructivism theory emphasized that the learner is the center of the learning and the instructors playing an advising and facilitating role. In the teaching-learning process, when the learners are empowered using the appropriate teaching methodology, they feel a sense of confidence, capability, competence, and self-esteem, enabling them to meet life’s challenges more effectively. Therefore, a shift in theory (education theory) to a more student-centered approach using active learning is recommended because this approach has its own role to make the students creative and competent in their study. Thus, this chapter of a book tried to address the contribution of active learning in the empowerment of learners in higher education institutions.
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- Authors: Sewagegn, Abatihun Alehegn , Diale, Boitumelo M.
- Date: 2019
- Subjects: Active learning , Empowerment , Higher education institution
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/404591 , uj:33936 , Citation: Sewagegn, A.A. & Diale, B.M. 2019. Empowering learners using active learning in higher education institutions.
- Description: Abstract: Higher education institutions are expected to produce skillful, problem solver, and competent graduates. This becomes possible when the instructors are using the appropriate teaching methodology and the learners are active and empowered in the teachinglearning process. In relation to this, constructivism theory emphasized that the learner is the center of the learning and the instructors playing an advising and facilitating role. In the teaching-learning process, when the learners are empowered using the appropriate teaching methodology, they feel a sense of confidence, capability, competence, and self-esteem, enabling them to meet life’s challenges more effectively. Therefore, a shift in theory (education theory) to a more student-centered approach using active learning is recommended because this approach has its own role to make the students creative and competent in their study. Thus, this chapter of a book tried to address the contribution of active learning in the empowerment of learners in higher education institutions.
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Evaluation of trace elemental levels as pollution indicators in an abandoned gold mine dump in Ekurhuleni Area, South Africa
- Okereafor, Godwin, Makhatha, Mamookho, Mekuto, Lukhanyo, Mavumengwana, Vuyo
- Authors: Okereafor, Godwin , Makhatha, Mamookho , Mekuto, Lukhanyo , Mavumengwana, Vuyo
- Date: 2019
- Subjects: Mine tailings , Trace metal , Pollution
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/406531 , uj:34183 , Citation: Okereafor, G. et al. 2019 : Evaluation of trace elemental levels as pollution indicators in an abandoned gold mine dump in Ekurhuleni Area, South Africa.
- Description: Abstract : In the Blesbokspruit area of Ekuhurleni, South Africa, previous gold mining activities resulted in many tailings dump sites. 20 representative soil samples were used in describing the distribution of metals. The soils were very strongly acidic ranging from 3.86 to 4.34 with a low cation exchange capacity (CEC). Based on X-ray fluorescence (XRF) analysis, elemental composition of the soils revealed average values of major elements such as Na2O (0.18%), MgO (0.63%), Al2O3 (6.51%), SiO2 (81.83%), P2O5 (0.04%), SO3 (3.40%), K2O (1.98%), CaO (0.45%), TiO2 (0.51%), Cr2O3 (0.17%), MnO (0.04%), Fe2O3 (3.59%), NiO (0.04%), As2O3 (0.02%), with Rb2O and SrO falling below 0.01%. Trace metals (TM) contamination levels in the soils were evaluated using various pollution indices which revealed that over 60% of the soils were between the high degree and the ultra-high degree of contamination classes. The concentration of various trace metals varies from 860.3–862.6 mg/kg for Cr; 324.9–328.4 mg/kg for Al; 200.9– 203.4 mg/kg for As; 130.1–136.2 mg/kg for Fe; 121.9–125.8 mg/kg for Pb; 27.3–30.2 mg/kg for Co; 23.8–26.8 mg/kg for Ni; 7.2–9.2 mg/kg for Ti; 7.1–9.2 mg/kg for Cd; 4.0–5.6 mg/kg for Zn and 0.1–0.6 mg/kg for Cu.
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- Authors: Okereafor, Godwin , Makhatha, Mamookho , Mekuto, Lukhanyo , Mavumengwana, Vuyo
- Date: 2019
- Subjects: Mine tailings , Trace metal , Pollution
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/406531 , uj:34183 , Citation: Okereafor, G. et al. 2019 : Evaluation of trace elemental levels as pollution indicators in an abandoned gold mine dump in Ekurhuleni Area, South Africa.
- Description: Abstract : In the Blesbokspruit area of Ekuhurleni, South Africa, previous gold mining activities resulted in many tailings dump sites. 20 representative soil samples were used in describing the distribution of metals. The soils were very strongly acidic ranging from 3.86 to 4.34 with a low cation exchange capacity (CEC). Based on X-ray fluorescence (XRF) analysis, elemental composition of the soils revealed average values of major elements such as Na2O (0.18%), MgO (0.63%), Al2O3 (6.51%), SiO2 (81.83%), P2O5 (0.04%), SO3 (3.40%), K2O (1.98%), CaO (0.45%), TiO2 (0.51%), Cr2O3 (0.17%), MnO (0.04%), Fe2O3 (3.59%), NiO (0.04%), As2O3 (0.02%), with Rb2O and SrO falling below 0.01%. Trace metals (TM) contamination levels in the soils were evaluated using various pollution indices which revealed that over 60% of the soils were between the high degree and the ultra-high degree of contamination classes. The concentration of various trace metals varies from 860.3–862.6 mg/kg for Cr; 324.9–328.4 mg/kg for Al; 200.9– 203.4 mg/kg for As; 130.1–136.2 mg/kg for Fe; 121.9–125.8 mg/kg for Pb; 27.3–30.2 mg/kg for Co; 23.8–26.8 mg/kg for Ni; 7.2–9.2 mg/kg for Ti; 7.1–9.2 mg/kg for Cd; 4.0–5.6 mg/kg for Zn and 0.1–0.6 mg/kg for Cu.
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Risk-neutral densities and their application in the Piterbarg Framework
- Levendis, Alexis, Venter, Pierre
- Authors: Levendis, Alexis , Venter, Pierre
- Date: 2019
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/424226 , uj:36271
- Description: Abstract: In this paper we consider two well-known interpolation schemes for the construction of the JSE Shareholder Weighted Top 40 implied volatility surface. We extend the Breeden and Litzenberger formula to the derivative pricing framework developed by Piterbarg post the 2007 financial crisis. Our results show that the statistical moments of the constructed risk-neutral densities are highly dependent on the choice of interpolation scheme. We show how the risk-neutral denity surface can be used to price options and briefly describe how the statistical moments can be used to inform trading strategies.
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- Authors: Levendis, Alexis , Venter, Pierre
- Date: 2019
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/424226 , uj:36271
- Description: Abstract: In this paper we consider two well-known interpolation schemes for the construction of the JSE Shareholder Weighted Top 40 implied volatility surface. We extend the Breeden and Litzenberger formula to the derivative pricing framework developed by Piterbarg post the 2007 financial crisis. Our results show that the statistical moments of the constructed risk-neutral densities are highly dependent on the choice of interpolation scheme. We show how the risk-neutral denity surface can be used to price options and briefly describe how the statistical moments can be used to inform trading strategies.
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Spirituality and leadership in a South African context
- Authors: Makka, Anoosha
- Date: 2019
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/409643 , uj:34348 , Citation: Makka, A. 2019: Spirituality and leadership in a South African context. DOI: https://doi.org/10.1007/978-3-319-98884-9_5.
- Description: Abstract: This chapter discusses spirituality and leadership in a South African context. Leadership theories that are situated in the spiritual paradigm such as authentic, servant, spiritual and transformational leadership are considered in this chapter. It is argued that leadership practices and styles in South Africa are heavily influenced by British and American approaches. The notion of “ubuntu,” which is a central component of Afrocentric leadership is thus largely ignored in literature on the topic. This chapter draws attention to the influence of Western approaches on leadership in South African organisations with particular reference to the Afrocentric notion of ubuntu. It is recommended that further research be undertaken on ubuntu leadership in the South African context and beyond. Another recommendation is that research should be undertaken on blending Afrocentric and Eurocentric leadership styles in order to identify how this combined leadership approach can be implemented in South Africa.
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- Authors: Makka, Anoosha
- Date: 2019
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/409643 , uj:34348 , Citation: Makka, A. 2019: Spirituality and leadership in a South African context. DOI: https://doi.org/10.1007/978-3-319-98884-9_5.
- Description: Abstract: This chapter discusses spirituality and leadership in a South African context. Leadership theories that are situated in the spiritual paradigm such as authentic, servant, spiritual and transformational leadership are considered in this chapter. It is argued that leadership practices and styles in South Africa are heavily influenced by British and American approaches. The notion of “ubuntu,” which is a central component of Afrocentric leadership is thus largely ignored in literature on the topic. This chapter draws attention to the influence of Western approaches on leadership in South African organisations with particular reference to the Afrocentric notion of ubuntu. It is recommended that further research be undertaken on ubuntu leadership in the South African context and beyond. Another recommendation is that research should be undertaken on blending Afrocentric and Eurocentric leadership styles in order to identify how this combined leadership approach can be implemented in South Africa.
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The cold war in the classroom : international perspectives on textbooks and memory practices
- Christophe, Barbara, Gautschi, Peter, Thorp, Robert
- Authors: Christophe, Barbara , Gautschi, Peter , Thorp, Robert
- Date: 2019
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/403815 , uj:33853 , Citation: Christophe, B., Gautschi, P. & Thorp, R. 2019. The cold war in the classroom : international perspectives on textbooks and memory practices.
- Description: Abstract: There is no education without some form of media. The field of educational media is a growing area of interest in education, as educational policy papers on the ‘digital agenda’, the rapid expansion of media sections in national and international educational research associations, and the range of academic books on media in education show. Educational media are crucial to producing knowledge and shaping educational practices. Conflicts over the contents of textbooks and curricula, widely discussed in the daily news, illustrate how many different stakeholders are invested in sharing their particular understandings of our (shared) past, the current society and potential imagined futures with the younger generation. Policymakers, politicians and activists regard educational media as important tools which not only foster young people’s media skills and world knowledge, but which also shape which ways of living are considered desirable or even legible. Textbooks and other educational media are deeply embedded in the socio-political contexts in which they are developed and used. Given this context, alongside the emerging interest in digital technology in education, the Palgrave Studies in Educational Media series takes stock of current research on educational media by focusing on three issues: First, today’s vibrant and dynamic research and scholarship on technology stems from a broad range of disciplines, including sociology,..
- Full Text:
- Authors: Christophe, Barbara , Gautschi, Peter , Thorp, Robert
- Date: 2019
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/403815 , uj:33853 , Citation: Christophe, B., Gautschi, P. & Thorp, R. 2019. The cold war in the classroom : international perspectives on textbooks and memory practices.
- Description: Abstract: There is no education without some form of media. The field of educational media is a growing area of interest in education, as educational policy papers on the ‘digital agenda’, the rapid expansion of media sections in national and international educational research associations, and the range of academic books on media in education show. Educational media are crucial to producing knowledge and shaping educational practices. Conflicts over the contents of textbooks and curricula, widely discussed in the daily news, illustrate how many different stakeholders are invested in sharing their particular understandings of our (shared) past, the current society and potential imagined futures with the younger generation. Policymakers, politicians and activists regard educational media as important tools which not only foster young people’s media skills and world knowledge, but which also shape which ways of living are considered desirable or even legible. Textbooks and other educational media are deeply embedded in the socio-political contexts in which they are developed and used. Given this context, alongside the emerging interest in digital technology in education, the Palgrave Studies in Educational Media series takes stock of current research on educational media by focusing on three issues: First, today’s vibrant and dynamic research and scholarship on technology stems from a broad range of disciplines, including sociology,..
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Advanced manufacture of compositionally composite graded materials : an overview
- Mahamood, R.M., Akinlabi, Esther Titilayo, Abdulrahman, K.O., Owolabi, M.G.
- Authors: Mahamood, R.M. , Akinlabi, Esther Titilayo , Abdulrahman, K.O. , Owolabi, M.G.
- Date: 2018
- Subjects: Additive manufacturing , Functionally graded materials , Selective laser melting
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/291077 , uj:31601 , Citation: Mahamood, R.M., Akinlabi, E.T. & Abdulrahman, K.O. 2018. Advanced manufacture of compositionally composite graded materials : an overview.
- Description: Abstract: Compositionally graded composite materials are advanced materials that consists of inhomogeneous composition as well as structure that varies across the entire volume and with changing properties. Functionally graded materials are produced through different manufacturing processes which include centrifugal method, powder metallurgy method, and additive manufacturing technology. Additive Manufacturing (AM) is an advanced manufacturing process used to produce three dimensional objects simply by adding materials in layers using the digital image of the component. In this chapter, the production of compositionally graded composite materials using an advanced manufacturing method, laser additive manufacturing technologies, which include selective laser melting/sintering and laser metal deposition/laser material deposition (LMD) processes are reviewed and the recent research progress are also presented.
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- Authors: Mahamood, R.M. , Akinlabi, Esther Titilayo , Abdulrahman, K.O. , Owolabi, M.G.
- Date: 2018
- Subjects: Additive manufacturing , Functionally graded materials , Selective laser melting
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/291077 , uj:31601 , Citation: Mahamood, R.M., Akinlabi, E.T. & Abdulrahman, K.O. 2018. Advanced manufacture of compositionally composite graded materials : an overview.
- Description: Abstract: Compositionally graded composite materials are advanced materials that consists of inhomogeneous composition as well as structure that varies across the entire volume and with changing properties. Functionally graded materials are produced through different manufacturing processes which include centrifugal method, powder metallurgy method, and additive manufacturing technology. Additive Manufacturing (AM) is an advanced manufacturing process used to produce three dimensional objects simply by adding materials in layers using the digital image of the component. In this chapter, the production of compositionally graded composite materials using an advanced manufacturing method, laser additive manufacturing technologies, which include selective laser melting/sintering and laser metal deposition/laser material deposition (LMD) processes are reviewed and the recent research progress are also presented.
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Disability porn : the fetishisation and liberation of disabled sex
- Authors: Ebrahim, Sumayya
- Date: 2018
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/291255 , uj:31625 , Citation: Ebrahim, S. 2018. Disability porn : the fetishisation and liberation of disabled sex.
- Description: Abstract: Set against dominant ableist discourses of sexuality, engaging in sex in the face of physical disabilities seems not only impossible but also highly improbable. Long-standing myths and discriminatory stereotypes around the sexuality of people with disabilities are commonplace, in part due to the sheer unknowns about the sexual lives and practises of people with disabilities. In recent years, members of the disabled community have emerged professing to thriving sex lives, and one avenue that provides evidence of not only the existence of disabled sexuality but also the multitude of possibilities within disabled sexuality is in the burgeoning genre of disability pornography. While disability and sex merge in pornography, there is limited interchange in the scholarship on disabled sexuality and pornography. In this chapter, I aim to address this privation by examining the intersection of pornography and disabled sexuality. I conclude that disability pornography not only has positive spinoffs, such as enfranchisement of disabled sex, but also negative upshots, which include the fetishisation of disabled sexuality...
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- Authors: Ebrahim, Sumayya
- Date: 2018
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/291255 , uj:31625 , Citation: Ebrahim, S. 2018. Disability porn : the fetishisation and liberation of disabled sex.
- Description: Abstract: Set against dominant ableist discourses of sexuality, engaging in sex in the face of physical disabilities seems not only impossible but also highly improbable. Long-standing myths and discriminatory stereotypes around the sexuality of people with disabilities are commonplace, in part due to the sheer unknowns about the sexual lives and practises of people with disabilities. In recent years, members of the disabled community have emerged professing to thriving sex lives, and one avenue that provides evidence of not only the existence of disabled sexuality but also the multitude of possibilities within disabled sexuality is in the burgeoning genre of disability pornography. While disability and sex merge in pornography, there is limited interchange in the scholarship on disabled sexuality and pornography. In this chapter, I aim to address this privation by examining the intersection of pornography and disabled sexuality. I conclude that disability pornography not only has positive spinoffs, such as enfranchisement of disabled sex, but also negative upshots, which include the fetishisation of disabled sexuality...
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