Cultural adaptations of Dance Movement Psychotherapy experiences: from a UK higher education context to working with communities in southern Africa facing water related inequality
- Copteros, Athina, Karkou, Vicky, Palmer, Carolyn G
- Authors: Copteros, Athina , Karkou, Vicky , Palmer, Carolyn G
- Date: 2017
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/141995 , vital:38022 , ISBN 9780199949298 , https://doi.org/10.1093/oxfordhb/9780199949298.001.0001
- Description: Water plays a key role in all our lives and in South Africa epitomizes a space in which political inequalities have played themselves out with devastating consequences. The current ecological crisis demands new ways of engaging with ourselves, each other and nature. This research is an initial exploration on the use of a body-based creative movement approach within a transdisciplinary complex social-ecological systems researcher group. The research objective discussed in this chapter is to develop culturally relevant themes from professional Dance Movement Psychotherapy (DMP) training in the UK for application in a South African water resource management context. Interpretative Phenomenological Analysis was used to identify culturally relevant themes based on the recorded perceptions of the phenomenon of the training while it was taking place. The themes of: Awareness of Power and Difference; Therapeutic Adaptability; Sharing Leadership and Connecting with the Environment were identified. Artistic Inquiry was used to creatively reflect on the themes and add an embodied response to the discussion. The cultural adaptations of DMP can contribute to a more engaged and non-hierarchical collaboration between practitioners and the people and communities they serve, which would facilitate a therapeutic practice that works with both internal, external (and even transcendental) factors.
- Full Text:
- Authors: Copteros, Athina , Karkou, Vicky , Palmer, Carolyn G
- Date: 2017
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/141995 , vital:38022 , ISBN 9780199949298 , https://doi.org/10.1093/oxfordhb/9780199949298.001.0001
- Description: Water plays a key role in all our lives and in South Africa epitomizes a space in which political inequalities have played themselves out with devastating consequences. The current ecological crisis demands new ways of engaging with ourselves, each other and nature. This research is an initial exploration on the use of a body-based creative movement approach within a transdisciplinary complex social-ecological systems researcher group. The research objective discussed in this chapter is to develop culturally relevant themes from professional Dance Movement Psychotherapy (DMP) training in the UK for application in a South African water resource management context. Interpretative Phenomenological Analysis was used to identify culturally relevant themes based on the recorded perceptions of the phenomenon of the training while it was taking place. The themes of: Awareness of Power and Difference; Therapeutic Adaptability; Sharing Leadership and Connecting with the Environment were identified. Artistic Inquiry was used to creatively reflect on the themes and add an embodied response to the discussion. The cultural adaptations of DMP can contribute to a more engaged and non-hierarchical collaboration between practitioners and the people and communities they serve, which would facilitate a therapeutic practice that works with both internal, external (and even transcendental) factors.
- Full Text:
Customary management as TURFs: social challenges and opportunities
- Authors: Aswani, Shankar
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145403 , vital:38435 , DOI: 10.5343/bms.2015.1084
- Description: There is a growing interest in working with customary management (CM) systems to effectively manage benthic resources and small-scale fisheries. The underlying notion is that CM institution as territorial use rights in fisheries (TURFs) can be sufficiently adaptive and dynamic to create the local incentives that are necessary for promoting sustainable fishing practices and marine conservation more generally in a given region. This paper reviews the social opportunities and challenges of working with CM systems as a form of TURF, particularly in Oceania. A key conclusion is that policy makers and managers not only need to recognize natural interconnectivity in any one marine space, but also consider the social interconnectivity of stakeholders that covers customary TURFs. Only by recognizing and working with the existing social networks that overlay any given marine territory can the operational principles of CM (as reviewed in this paper) be effectively deployed for achieving some kind of bioeconomic efficiency and creating an equitable rights-based fisheries management system.
- Full Text:
- Authors: Aswani, Shankar
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145403 , vital:38435 , DOI: 10.5343/bms.2015.1084
- Description: There is a growing interest in working with customary management (CM) systems to effectively manage benthic resources and small-scale fisheries. The underlying notion is that CM institution as territorial use rights in fisheries (TURFs) can be sufficiently adaptive and dynamic to create the local incentives that are necessary for promoting sustainable fishing practices and marine conservation more generally in a given region. This paper reviews the social opportunities and challenges of working with CM systems as a form of TURF, particularly in Oceania. A key conclusion is that policy makers and managers not only need to recognize natural interconnectivity in any one marine space, but also consider the social interconnectivity of stakeholders that covers customary TURFs. Only by recognizing and working with the existing social networks that overlay any given marine territory can the operational principles of CM (as reviewed in this paper) be effectively deployed for achieving some kind of bioeconomic efficiency and creating an equitable rights-based fisheries management system.
- Full Text:
Dance as a tool for emotional well-being
- Authors: Conchar, Lauren
- Date: 2017
- Subjects: Dance therapy , Well-being , Happiness , Adolescent psychology , Dance -- Social aspects -- South Africa -- Cape Flats , Dance -- Psychological aspects -- South Africa -- Cape Flats , Dance -- Psychological aspects -- South Africa -- Cape Flats -- Case studies , Community development, Urban -- Psychological aspects -- South Africa -- Cape Flats -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/5129 , vital:20779
- Description: Dance has numerous benefits for emotional well-being. For young people specifically it can serve as a prosocial activity where they can engage in a purposeful activity, in a safe space with consistent boundaries and discipline, while surrounded by peers, teachers and positive role models. Recreational spaces that allow young people to feel safe and express themselves is especially important in low socioeconomic areas where there are limited resources and exposure to heightened levels of crime as young people may be less likely to engage in negative behaviours when they have access to alternative, positive activities. This research aimed to explore the lived experiences of a group of young people who participate in dance classes at a community dance project in the Western Cape. The sample group consisted of four young people between the ages of 16 and 20. Semi-structured interviews were conducted with the participants and the interviews were analysed using interpretative phenomenological analysis. Three major themes emerged from the data, namely 1) My exposure to dance - The impact of context, 2) What motivates me to continue attending classes - The fulfilment of the three basic psychological needs, and 3) How does dance make me feel - The experience of emotional well-being through dance. The discussion of the findings yielded many similarities between the experiences of the participants and the relevant literature. Further, it appears that all four participants experience the satisfaction of the three basic psychological needs (competence, autonomy and relatedness) at the centre. This may serve as a motivator to continue attending classes as well as contribute to sustained eudaimonic wellbeing. Recommendations include further studies being conducted with groups of young people engaging in dance projects in different socioeconomic contexts and in different parts of South Africa. This could give us a more rounded understanding of how people young people experience dance class and how it contributes to emotional well-being. Further research could also be conducted with recreational projects that offer other activities in under-resourced areas in order to better inform the development of such recreational activities.
- Full Text:
- Authors: Conchar, Lauren
- Date: 2017
- Subjects: Dance therapy , Well-being , Happiness , Adolescent psychology , Dance -- Social aspects -- South Africa -- Cape Flats , Dance -- Psychological aspects -- South Africa -- Cape Flats , Dance -- Psychological aspects -- South Africa -- Cape Flats -- Case studies , Community development, Urban -- Psychological aspects -- South Africa -- Cape Flats -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/5129 , vital:20779
- Description: Dance has numerous benefits for emotional well-being. For young people specifically it can serve as a prosocial activity where they can engage in a purposeful activity, in a safe space with consistent boundaries and discipline, while surrounded by peers, teachers and positive role models. Recreational spaces that allow young people to feel safe and express themselves is especially important in low socioeconomic areas where there are limited resources and exposure to heightened levels of crime as young people may be less likely to engage in negative behaviours when they have access to alternative, positive activities. This research aimed to explore the lived experiences of a group of young people who participate in dance classes at a community dance project in the Western Cape. The sample group consisted of four young people between the ages of 16 and 20. Semi-structured interviews were conducted with the participants and the interviews were analysed using interpretative phenomenological analysis. Three major themes emerged from the data, namely 1) My exposure to dance - The impact of context, 2) What motivates me to continue attending classes - The fulfilment of the three basic psychological needs, and 3) How does dance make me feel - The experience of emotional well-being through dance. The discussion of the findings yielded many similarities between the experiences of the participants and the relevant literature. Further, it appears that all four participants experience the satisfaction of the three basic psychological needs (competence, autonomy and relatedness) at the centre. This may serve as a motivator to continue attending classes as well as contribute to sustained eudaimonic wellbeing. Recommendations include further studies being conducted with groups of young people engaging in dance projects in different socioeconomic contexts and in different parts of South Africa. This could give us a more rounded understanding of how people young people experience dance class and how it contributes to emotional well-being. Further research could also be conducted with recreational projects that offer other activities in under-resourced areas in order to better inform the development of such recreational activities.
- Full Text:
Dangers of generic pedagogical panaceas: implementing sevice-learning differently in diverse disciplines
- Hlengwa, Amanda I, McKenna, Sioux
- Authors: Hlengwa, Amanda I , McKenna, Sioux
- Date: 2017
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61051 , vital:27933 , http://joe.ukzn.ac.za/Libraries/No_67_2017/Dangers_of_generic_pedagogical_panaceas_Implementing_service-learning_differently_in_diverse_disciplines.sflb.ashx
- Description: Descriptions of service-learning in the literature tend to position it as a powerful pedagogic tool as well as an exemplar of ‘best practice’ applicable across all disciplines and institutional contexts. Furthermore service-learning is couched as a moral imperative. In the South African context, this moral imperative is translated into policy pronouncements driving institutions of higher education to demonstrate responsiveness to the transformation needs of broader society. In this article, two departments, Philosophy and Environmental Science, at one university are used as case studies to interrogate what enables the uptake of service-learning as a pedagogic tool. Drawing on the work of Fairclough, this paper identifies the dominant discourses at play and considers how they constrain or enable the uptake of service-learning. We advocate for the infusion of service-learning in curricula, but argue that institutional culture, disciplinary values and the structure of knowledge impact on its uptake and should not be dismissed in the implementation process.
- Full Text:
- Authors: Hlengwa, Amanda I , McKenna, Sioux
- Date: 2017
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61051 , vital:27933 , http://joe.ukzn.ac.za/Libraries/No_67_2017/Dangers_of_generic_pedagogical_panaceas_Implementing_service-learning_differently_in_diverse_disciplines.sflb.ashx
- Description: Descriptions of service-learning in the literature tend to position it as a powerful pedagogic tool as well as an exemplar of ‘best practice’ applicable across all disciplines and institutional contexts. Furthermore service-learning is couched as a moral imperative. In the South African context, this moral imperative is translated into policy pronouncements driving institutions of higher education to demonstrate responsiveness to the transformation needs of broader society. In this article, two departments, Philosophy and Environmental Science, at one university are used as case studies to interrogate what enables the uptake of service-learning as a pedagogic tool. Drawing on the work of Fairclough, this paper identifies the dominant discourses at play and considers how they constrain or enable the uptake of service-learning. We advocate for the infusion of service-learning in curricula, but argue that institutional culture, disciplinary values and the structure of knowledge impact on its uptake and should not be dismissed in the implementation process.
- Full Text:
Data compression, field of interest shaping and fast algorithms for direction-dependent deconvolution in radio interferometry
- Authors: Atemkeng, Marcellin T
- Date: 2017
- Subjects: Radio astronomy , Solar radio emission , Radio interferometers , Signal processing -- Digital techniques , Algorithms , Data compression (Computer science)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/6324 , vital:21089
- Description: In radio interferometry, observed visibilities are intrinsically sampled at some interval in time and frequency. Modern interferometers are capable of producing data at very high time and frequency resolution; practical limits on storage and computation costs require that some form of data compression be imposed. The traditional form of compression is simple averaging of the visibilities over coarser time and frequency bins. This has an undesired side effect: the resulting averaged visibilities “decorrelate”, and do so differently depending on the baseline length and averaging interval. This translates into a non-trivial signature in the image domain known as “smearing”, which manifests itself as an attenuation in amplitude towards off-centre sources. With the increasing fields of view and/or longer baselines employed in modern and future instruments, the trade-off between data rate and smearing becomes increasingly unfavourable. Averaging also results in baseline length and a position-dependent point spread function (PSF). In this work, we investigate alternative approaches to low-loss data compression. We show that averaging of the visibility data can be understood as a form of convolution by a boxcar-like window function, and that by employing alternative baseline-dependent window functions a more optimal interferometer smearing response may be induced. Specifically, we can improve amplitude response over a chosen field of interest and attenuate sources outside the field of interest. The main cost of this technique is a reduction in nominal sensitivity; we investigate the smearing vs. sensitivity trade-off and show that in certain regimes a favourable compromise can be achieved. We show the application of this technique to simulated data from the Jansky Very Large Array and the European Very Long Baseline Interferometry Network. Furthermore, we show that the position-dependent PSF shape induced by averaging can be approximated using linear algebraic properties to effectively reduce the computational complexity for evaluating the PSF at each sky position. We conclude by implementing a position-dependent PSF deconvolution in an imaging and deconvolution framework. Using the Low-Frequency Array radio interferometer, we show that deconvolution with position-dependent PSFs results in higher image fidelity compared to a simple CLEAN algorithm and its derivatives.
- Full Text:
- Authors: Atemkeng, Marcellin T
- Date: 2017
- Subjects: Radio astronomy , Solar radio emission , Radio interferometers , Signal processing -- Digital techniques , Algorithms , Data compression (Computer science)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/6324 , vital:21089
- Description: In radio interferometry, observed visibilities are intrinsically sampled at some interval in time and frequency. Modern interferometers are capable of producing data at very high time and frequency resolution; practical limits on storage and computation costs require that some form of data compression be imposed. The traditional form of compression is simple averaging of the visibilities over coarser time and frequency bins. This has an undesired side effect: the resulting averaged visibilities “decorrelate”, and do so differently depending on the baseline length and averaging interval. This translates into a non-trivial signature in the image domain known as “smearing”, which manifests itself as an attenuation in amplitude towards off-centre sources. With the increasing fields of view and/or longer baselines employed in modern and future instruments, the trade-off between data rate and smearing becomes increasingly unfavourable. Averaging also results in baseline length and a position-dependent point spread function (PSF). In this work, we investigate alternative approaches to low-loss data compression. We show that averaging of the visibility data can be understood as a form of convolution by a boxcar-like window function, and that by employing alternative baseline-dependent window functions a more optimal interferometer smearing response may be induced. Specifically, we can improve amplitude response over a chosen field of interest and attenuate sources outside the field of interest. The main cost of this technique is a reduction in nominal sensitivity; we investigate the smearing vs. sensitivity trade-off and show that in certain regimes a favourable compromise can be achieved. We show the application of this technique to simulated data from the Jansky Very Large Array and the European Very Long Baseline Interferometry Network. Furthermore, we show that the position-dependent PSF shape induced by averaging can be approximated using linear algebraic properties to effectively reduce the computational complexity for evaluating the PSF at each sky position. We conclude by implementing a position-dependent PSF deconvolution in an imaging and deconvolution framework. Using the Low-Frequency Array radio interferometer, we show that deconvolution with position-dependent PSFs results in higher image fidelity compared to a simple CLEAN algorithm and its derivatives.
- Full Text:
Data structures and algorithms for bioinformatics
- Authors: Machanick, Philip
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/439172 , vital:73552 , https://homes.cs.ru.ac.za/philip/Courses/BioinfMScAlgorithms/BioinfAlgorithms.pdf
- Description: WHY THIS MATERIAL? Bioinformatics is a difficult subject because it integrates so much from multiple disciplines. The emphasis here is on algorithmic thinking–working from a problem to an implementation while thinking analytically about efficiency concerns. The picture illustrates a general plan for algorithmic thinking. Anything that can be classed as an algorithm can be analysed and your design choices are not always to find the most efficient algorithm possible. The aim is to solve a problem as efficiently as possible; if it is something you do only once, that results in a rather different set of choices than if you are going to do it many times. And–of course–size counts. That is what this course is am I doing this once
- Full Text:
- Authors: Machanick, Philip
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/439172 , vital:73552 , https://homes.cs.ru.ac.za/philip/Courses/BioinfMScAlgorithms/BioinfAlgorithms.pdf
- Description: WHY THIS MATERIAL? Bioinformatics is a difficult subject because it integrates so much from multiple disciplines. The emphasis here is on algorithmic thinking–working from a problem to an implementation while thinking analytically about efficiency concerns. The picture illustrates a general plan for algorithmic thinking. Anything that can be classed as an algorithm can be analysed and your design choices are not always to find the most efficient algorithm possible. The aim is to solve a problem as efficiently as possible; if it is something you do only once, that results in a rather different set of choices than if you are going to do it many times. And–of course–size counts. That is what this course is am I doing this once
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Death of the PhD: when industry partners determine doctoral outcomes
- Frick, Liezel, McKenna, Sioux, Muthama, Evelyn
- Authors: Frick, Liezel , McKenna, Sioux , Muthama, Evelyn
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/66680 , vital:28981 , ISSN 1469-8366 , https://doi.org/10.1080/07294360.2017.1263467
- Description: Pre-print , The PhD is the highest formal qualification and signifies a scholar’s rite of passage as a legitimate contributor of new knowledge in a field. Examiner reports make claims about what is legitimate in a thesis and what is not and thus articulate the organising principles through which participation in a field is measured. The authors analysed 39 examiners’ reports on 13 PhDs produced over a five-year period by scholars from the Higher Education Research doctoral studies programme at Rhodes University in South Africa. Drawing on aspects of Karl Maton’s Legitimation Code Theory (LCT), this study uses the dimensions of LCT:Specialisation and LCT:Semantics to explore what kinds of knowledge, skills and procedures and what kinds of knowers are validated in the field of Higher Education Research through the examination process. The study found that despite concerns in the literature about the a-theoretical nature of the Higher Education Studies field, examiners valued high-level theoretical and meta-theoretical engagement as well as methodological rigour. In addition, examiners prized the ability to demonstrate a strong ideological position, to use a clear doctoral voice, and to recognise the axiological drive of the field. The analysis showed that examiners were interested in strong contextualisation of the problem-spaces in higher education in South Africa but also commented positively on candidates’ ability to move from troubling an issue within its context to being able to abstract findings so as to contribute to the field as a whole.
- Full Text:
- Authors: Frick, Liezel , McKenna, Sioux , Muthama, Evelyn
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/66680 , vital:28981 , ISSN 1469-8366 , https://doi.org/10.1080/07294360.2017.1263467
- Description: Pre-print , The PhD is the highest formal qualification and signifies a scholar’s rite of passage as a legitimate contributor of new knowledge in a field. Examiner reports make claims about what is legitimate in a thesis and what is not and thus articulate the organising principles through which participation in a field is measured. The authors analysed 39 examiners’ reports on 13 PhDs produced over a five-year period by scholars from the Higher Education Research doctoral studies programme at Rhodes University in South Africa. Drawing on aspects of Karl Maton’s Legitimation Code Theory (LCT), this study uses the dimensions of LCT:Specialisation and LCT:Semantics to explore what kinds of knowledge, skills and procedures and what kinds of knowers are validated in the field of Higher Education Research through the examination process. The study found that despite concerns in the literature about the a-theoretical nature of the Higher Education Studies field, examiners valued high-level theoretical and meta-theoretical engagement as well as methodological rigour. In addition, examiners prized the ability to demonstrate a strong ideological position, to use a clear doctoral voice, and to recognise the axiological drive of the field. The analysis showed that examiners were interested in strong contextualisation of the problem-spaces in higher education in South Africa but also commented positively on candidates’ ability to move from troubling an issue within its context to being able to abstract findings so as to contribute to the field as a whole.
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Decolonisation as future frame for environmental and sustainability education: embracing the commons with absence and emergence
- Authors: Lotz-Sisitka, Heila
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/437466 , vital:73386 , ISBN 9789086868469 , https://doi.org/10.3920/978-90-8686-846-9_2
- Description: This chapter considers how engagement with decolonization history, theory and practice may provide an interesting future frame for Environmental and Sustainability Education (ESE). The chapter provides an overview of some of the key dynam-ics of decolonization thinking that are circulating at present, and considers particularly the problematique of absence and emergence. It argues for giving attention not only to critical analysis of colonization concerns (ie identification of absence), but also to expansive, emergent theories of learning which we might mobilise in environmental and sustainability education (ESE) out of our existing forms of being in order to re-imagine new becomings that are oriented to the common good (ie pro-cesses of emergence). In situating the argument within wider discourses around education and the common good, this chapter argues that decolonisation is a project that concerns us all (not only those in the global South), given the contempo-rary realities and geopolitics of resource flows, hypercapitalism, colonization by market logic, and the privatisation of the commons.
- Full Text:
- Authors: Lotz-Sisitka, Heila
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/437466 , vital:73386 , ISBN 9789086868469 , https://doi.org/10.3920/978-90-8686-846-9_2
- Description: This chapter considers how engagement with decolonization history, theory and practice may provide an interesting future frame for Environmental and Sustainability Education (ESE). The chapter provides an overview of some of the key dynam-ics of decolonization thinking that are circulating at present, and considers particularly the problematique of absence and emergence. It argues for giving attention not only to critical analysis of colonization concerns (ie identification of absence), but also to expansive, emergent theories of learning which we might mobilise in environmental and sustainability education (ESE) out of our existing forms of being in order to re-imagine new becomings that are oriented to the common good (ie pro-cesses of emergence). In situating the argument within wider discourses around education and the common good, this chapter argues that decolonisation is a project that concerns us all (not only those in the global South), given the contempo-rary realities and geopolitics of resource flows, hypercapitalism, colonization by market logic, and the privatisation of the commons.
- Full Text:
Decoupled reciprocal subsidies of biomass and fatty acids in fluxes of invertebrates between a temperate river and the adjacent land:
- Moyo, Sydney, Chari, Lenin D, Villet, Martin H, Richoux, Nicole B
- Authors: Moyo, Sydney , Chari, Lenin D , Villet, Martin H , Richoux, Nicole B
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140843 , vital:37923 , DOI: 10.1007/s00027-017-0529-0
- Description: Streams and riparian areas are tightly coupled through reciprocal trophic subsidies, and there is evidence that these subsidies affect consumers in connected ecosystems. Most studies of subsidies consider only their quantity and not their quality. We determined the bidirectional exchange of organisms between the Kowie River and its riparian zone in South Africa using floating pyramidal traps (to measure insect emergence) and pan traps (to capture infalling invertebrates).
- Full Text:
- Authors: Moyo, Sydney , Chari, Lenin D , Villet, Martin H , Richoux, Nicole B
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140843 , vital:37923 , DOI: 10.1007/s00027-017-0529-0
- Description: Streams and riparian areas are tightly coupled through reciprocal trophic subsidies, and there is evidence that these subsidies affect consumers in connected ecosystems. Most studies of subsidies consider only their quantity and not their quality. We determined the bidirectional exchange of organisms between the Kowie River and its riparian zone in South Africa using floating pyramidal traps (to measure insect emergence) and pan traps (to capture infalling invertebrates).
- Full Text:
Deep wounds... left... in hearts and minds: South African public history
- Authors: Wells, Julia C
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/69742 , vital:29574 , http://dx.doi.org/10.5130/phrj.v24i0.5781
- Description: Public history practise in South Africa holds out much promise of further things to come. It can close the gulf between history and heritage. This chapter argues that the role of the public historian should not be conflated with the dynamics of the heritage sector, but suggests how trained academics can indeed put their skills to work in a society that is passionately interested in understanding itself and how its pasts created the present. The student movement sharply raised the image of universities in crisis, requiring a whole new, relevant curriculum and rethinking the ways that universities relate to their publics. Public historians can work towards creating invented spaces for co-production of knowledge, moving beyond the traditional oral history interview. The divide between academia and communities is huge and needs to be constantly tackled, providing access to the secluded information of the professional world. I suggest that due to their privileged place in society, many historians have been unable or unwilling to engage with the recovery agenda – the massive need for affirmation of African identity, capacity and culture. A handful of dedicated public historians do not fit this mould and have been exemplary in rolling up their sleeves and boldly engaging with the messy complications of dealing with non-academic communities to produce new forms of historical knowledge, based on inclusiveness.
- Full Text:
- Authors: Wells, Julia C
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/69742 , vital:29574 , http://dx.doi.org/10.5130/phrj.v24i0.5781
- Description: Public history practise in South Africa holds out much promise of further things to come. It can close the gulf between history and heritage. This chapter argues that the role of the public historian should not be conflated with the dynamics of the heritage sector, but suggests how trained academics can indeed put their skills to work in a society that is passionately interested in understanding itself and how its pasts created the present. The student movement sharply raised the image of universities in crisis, requiring a whole new, relevant curriculum and rethinking the ways that universities relate to their publics. Public historians can work towards creating invented spaces for co-production of knowledge, moving beyond the traditional oral history interview. The divide between academia and communities is huge and needs to be constantly tackled, providing access to the secluded information of the professional world. I suggest that due to their privileged place in society, many historians have been unable or unwilling to engage with the recovery agenda – the massive need for affirmation of African identity, capacity and culture. A handful of dedicated public historians do not fit this mould and have been exemplary in rolling up their sleeves and boldly engaging with the messy complications of dealing with non-academic communities to produce new forms of historical knowledge, based on inclusiveness.
- Full Text:
Deliberations on a changing curriculum landscape and emergent environmental and sustainability education practices in South Africa
- Authors: Schudel, Ingrid J
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/436206 , vital:73239 , ISBN 978-3-319-45989-9 , https://doi.org/10.1007/978-3-319-45989-9_3
- Description: This chapter describes Environmental and Sustainability Edu-cation (ESE) in South Africa against the backdrop of a chang-ing educational system. It discusses changing educational im-peratives in post-apartheid South Africa and how these have been interpreted and applied in three curriculum revisions in South Africa since 1994: Curriculum 2005, the Revised Na-tional Curriculum Statements and the Curriculum Assessment Policy Statement. The narrative also examines a changing pic-ture of teacher professional development in South Africa high-lighting how constructivist and social realist understandings of education, development and learning have entered the dis-course and influenced practice in South Africa. The chapter concludes with highlighting how a relational approach to learn-ing, as evident in ESE practices in South Africa, can help to avoid a pendulum swing between the dichotomies of compet-ing discourses.
- Full Text:
- Authors: Schudel, Ingrid J
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/436206 , vital:73239 , ISBN 978-3-319-45989-9 , https://doi.org/10.1007/978-3-319-45989-9_3
- Description: This chapter describes Environmental and Sustainability Edu-cation (ESE) in South Africa against the backdrop of a chang-ing educational system. It discusses changing educational im-peratives in post-apartheid South Africa and how these have been interpreted and applied in three curriculum revisions in South Africa since 1994: Curriculum 2005, the Revised Na-tional Curriculum Statements and the Curriculum Assessment Policy Statement. The narrative also examines a changing pic-ture of teacher professional development in South Africa high-lighting how constructivist and social realist understandings of education, development and learning have entered the dis-course and influenced practice in South Africa. The chapter concludes with highlighting how a relational approach to learn-ing, as evident in ESE practices in South Africa, can help to avoid a pendulum swing between the dichotomies of compet-ing discourses.
- Full Text:
Demobilisation and the civilian reintegration of women ex-combatants in post-apartheid South Africa: the aftermath of transnational guerrilla girls, combative mothers and in- betweeners in the shadows of a late twentieth-century war
- Authors: Magadla, Siphokazi
- Date: 2017
- Subjects: South Africa. National Defence Force , Umkhonto we Sizwe (South Africa) -- Demobilization , Azanian People's Liberation Army -- Demobilization , Amabutho Self-Defence Unit -- Demobilization , South Africa. Army -- Women , Women soldiers -- South Africa , Government, Resistance to -- South Africa -- History , Women veterans -- South Africa -- History , Women veterans -- South Africa -- Interviews
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/41775 , vital:25133
- Description: This study examines the state assisted demobilisation and civilian reintegration of women excombatants in post-apartheid South Africa. The study is based on life history interviews conducted with 36 women who fought for Umkhonto we Sizwe (MK), Azanian People’s Liberation Army (APLA) and Amabutho Self-Defence Unit. There is agreement across the literature that the armed struggle against apartheid falls within the category of guerilla warfare, fought in multiple terrains, that blur conventional distinctions of civilian and combatant, homefront and battlefront, as well as the domestic and transnational. Located within feminist International Relations theory, the study argues that the formal process that led to the integration of statutory and non-statutory forces to form the South African National Defence Force, which facilitated the demobilisation process, was framed in ways that did not reflect the unconventional nature of the armed struggle against apartheid. The few women who participated in this process were the transnationally trained combatants of MK and APLA. The majority of women who participated in the multiple and overlapping sites of the domestic and international apartheid battlefront were left out of this process. It is argued that women’s roles in the armed struggle were shaped by various factors, such as age, space and period of struggle. Three categories, guerilla girls, combative mothers and the in-betweeners, are introduced in order to demonstrate the different spaces from within which women fought, and the methods they used, all of which were central to the success of the People’s War strategy. In this regard, the venerated transnationally trained woman combatant, like their male counterpart, is argued to be an exception, as the majority of women were thrust into the armed struggle without military training. Furthermore, it is argued that conservative feminist readings of black women’s relationship with nationalism in the anti-apartheid struggle have misrecognised and undermined women’s combatant contributions, by inscribing their forms of resistance as maternal, and outside the war effort. The study shows that the majority of women combatants have transitioned to civilian life without formal state recognition and assistance. The erasure of women’s role as combatants also means that they are excluded from the current legislative framework facilitated by the Department of Military Veterans to support the welfare of former combatants. As such, the study builds on Jacklyn Cock’s (1991) pioneering study on war and gender in South Africa; it is the first study that exclusively focuses on women ex-combatants’ experiences in postapartheid South Africa.
- Full Text:
- Authors: Magadla, Siphokazi
- Date: 2017
- Subjects: South Africa. National Defence Force , Umkhonto we Sizwe (South Africa) -- Demobilization , Azanian People's Liberation Army -- Demobilization , Amabutho Self-Defence Unit -- Demobilization , South Africa. Army -- Women , Women soldiers -- South Africa , Government, Resistance to -- South Africa -- History , Women veterans -- South Africa -- History , Women veterans -- South Africa -- Interviews
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/41775 , vital:25133
- Description: This study examines the state assisted demobilisation and civilian reintegration of women excombatants in post-apartheid South Africa. The study is based on life history interviews conducted with 36 women who fought for Umkhonto we Sizwe (MK), Azanian People’s Liberation Army (APLA) and Amabutho Self-Defence Unit. There is agreement across the literature that the armed struggle against apartheid falls within the category of guerilla warfare, fought in multiple terrains, that blur conventional distinctions of civilian and combatant, homefront and battlefront, as well as the domestic and transnational. Located within feminist International Relations theory, the study argues that the formal process that led to the integration of statutory and non-statutory forces to form the South African National Defence Force, which facilitated the demobilisation process, was framed in ways that did not reflect the unconventional nature of the armed struggle against apartheid. The few women who participated in this process were the transnationally trained combatants of MK and APLA. The majority of women who participated in the multiple and overlapping sites of the domestic and international apartheid battlefront were left out of this process. It is argued that women’s roles in the armed struggle were shaped by various factors, such as age, space and period of struggle. Three categories, guerilla girls, combative mothers and the in-betweeners, are introduced in order to demonstrate the different spaces from within which women fought, and the methods they used, all of which were central to the success of the People’s War strategy. In this regard, the venerated transnationally trained woman combatant, like their male counterpart, is argued to be an exception, as the majority of women were thrust into the armed struggle without military training. Furthermore, it is argued that conservative feminist readings of black women’s relationship with nationalism in the anti-apartheid struggle have misrecognised and undermined women’s combatant contributions, by inscribing their forms of resistance as maternal, and outside the war effort. The study shows that the majority of women combatants have transitioned to civilian life without formal state recognition and assistance. The erasure of women’s role as combatants also means that they are excluded from the current legislative framework facilitated by the Department of Military Veterans to support the welfare of former combatants. As such, the study builds on Jacklyn Cock’s (1991) pioneering study on war and gender in South Africa; it is the first study that exclusively focuses on women ex-combatants’ experiences in postapartheid South Africa.
- Full Text:
Density-dependent effects on body size, Philopatry, and dispersal in the Damaraland mole-rat (Fukomys damarensis)
- Authors: Finn, Kyle T
- Date: 2017
- Subjects: Fukomys damarensis , Fukomys damarensis -- Reproduction , Fukomys damarensis -- Growth , Rodents -- Reproduction -- South Africa -- Northern Cape , Rodents -- Growth -- South Africa -- Northern Cape , Rodent populations -- South Africa -- Northern Cape
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/50495 , vital:25993
- Description: Population density may exert changes in a variety of behavioural and physiological characters in animals. However, the effects of density-dependence and dispersal are poorly studied in subterranean rodents due to the difficulties involved in observing such effects in wild populations. Using the cooperative breeding Damaraland mole-rat (Fukomys damarensis) as a model species, the effects of population density on body size, growth rates, group size, recruitment, philopatry and dispersal were investigated at two sites (one with low density and one with high density) in the Northern Cape of South Africa. Group size, litter size and the probability of recapture were independent of population density. However, individual body size, recruitment, dispersal rate and dispersal distance were density-dependent. Individuals were significantly larger, juveniles exhibited a significantly higher growth rate, and juvenile recruitment was significantly greater when population density was low. At higher densities, significantly more individuals were lost between capture events which may be indicative of increased rates of dispersal. Mean dispersal distances in mole-rats were reduced at higher densities and increased at lower densities. While both sexes dispersed equally, males were significantly more likely to join an established colony and females created new burrow systems. In addition, four times as many single females were found when population density was low. The apparent differences in the study populations may be attributed to variable annual rainfall or food availability. The greater annual rainfall at the high-density site may provide better habitat conditions and therefore result in an increase in the population density and an increased dispersal rate due to the relaxed ecological constraints such as reduced energetic costs to burrowing. However, the larger body size found at the low-density site may indicate that the available food at that location is of better quality. This study revealed that mole-rats were able to disperse over 1km and therefore a much larger study area would be required in capture-mark-recapture studies to ensure the recapture of the majority of dispersers. Lastly, a surprising find of this study was that females may survive a solitary existence for over two years while awaiting the arrival of a mate.
- Full Text:
- Authors: Finn, Kyle T
- Date: 2017
- Subjects: Fukomys damarensis , Fukomys damarensis -- Reproduction , Fukomys damarensis -- Growth , Rodents -- Reproduction -- South Africa -- Northern Cape , Rodents -- Growth -- South Africa -- Northern Cape , Rodent populations -- South Africa -- Northern Cape
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/50495 , vital:25993
- Description: Population density may exert changes in a variety of behavioural and physiological characters in animals. However, the effects of density-dependence and dispersal are poorly studied in subterranean rodents due to the difficulties involved in observing such effects in wild populations. Using the cooperative breeding Damaraland mole-rat (Fukomys damarensis) as a model species, the effects of population density on body size, growth rates, group size, recruitment, philopatry and dispersal were investigated at two sites (one with low density and one with high density) in the Northern Cape of South Africa. Group size, litter size and the probability of recapture were independent of population density. However, individual body size, recruitment, dispersal rate and dispersal distance were density-dependent. Individuals were significantly larger, juveniles exhibited a significantly higher growth rate, and juvenile recruitment was significantly greater when population density was low. At higher densities, significantly more individuals were lost between capture events which may be indicative of increased rates of dispersal. Mean dispersal distances in mole-rats were reduced at higher densities and increased at lower densities. While both sexes dispersed equally, males were significantly more likely to join an established colony and females created new burrow systems. In addition, four times as many single females were found when population density was low. The apparent differences in the study populations may be attributed to variable annual rainfall or food availability. The greater annual rainfall at the high-density site may provide better habitat conditions and therefore result in an increase in the population density and an increased dispersal rate due to the relaxed ecological constraints such as reduced energetic costs to burrowing. However, the larger body size found at the low-density site may indicate that the available food at that location is of better quality. This study revealed that mole-rats were able to disperse over 1km and therefore a much larger study area would be required in capture-mark-recapture studies to ensure the recapture of the majority of dispersers. Lastly, a surprising find of this study was that females may survive a solitary existence for over two years while awaiting the arrival of a mate.
- Full Text:
Deriving norms for learners in the disadvantaged schools of the peri-urban areas of the Eastern Cape: the case of the Vassiliou Mathematics Proficiency Test (VASSI)
- Masango, Siphesihle Polkadot
- Authors: Masango, Siphesihle Polkadot
- Date: 2017
- Subjects: VASSI Mathematics Proficiency Test , Mathematical ability -- Testing -- South Africa , Educational tests and measurements -- South Africa , Children with social disabilities -- Education -- South Africa , Children with social disabilities -- Education -- South Africa -- Makhanda -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/49929 , vital:25943
- Description: This study builds on South African cross-cultural research which highlights the need for careful stratification of normative samples for quality of education and geographical location. The aim of the present study was to produce an expanded set of preliminary norms for learners in the disadvantaged schools of the peri-urban areas of the Eastern Cape, Grahamstown, on the Vassiliou Mathematics Foundation Phase Test (VASSI) and Vassiliou Mathematics Proficiency Test (VASSI), respectively. The test was administered to Grade 1-6 learners in four different schools all within Joza location, Grahamstown. For the learners’ convenience the tests were translated into isiXhosa, the translations were provided together with the original English questions. Archival data collected by honours students was also incorporated in this study. The total number of participants was N=724 which was comprised of 147 grade 1s, 123 grade 2s, 117 grade 3s, 128 grade 4s, 113 grade 5s and 96 grade 6s. Norm-referenced criterion was used in analysing the data. The results of this study are in accordance with those purporting the low performance of disadvantaged learners on the school subject, mathematics. Stanines for the various grades (Grade 1 to 6) were calculated and are presented in the study. This study has demonstrated that although gender, language and other ethnic variables have an impact on mathematics performance, quality of education and socioeconomic status have a significant effect. Further research is needed on the effect of quality of education and socioeconomic status on learners in disadvantaged schools on this test in particular.
- Full Text:
- Authors: Masango, Siphesihle Polkadot
- Date: 2017
- Subjects: VASSI Mathematics Proficiency Test , Mathematical ability -- Testing -- South Africa , Educational tests and measurements -- South Africa , Children with social disabilities -- Education -- South Africa , Children with social disabilities -- Education -- South Africa -- Makhanda -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/49929 , vital:25943
- Description: This study builds on South African cross-cultural research which highlights the need for careful stratification of normative samples for quality of education and geographical location. The aim of the present study was to produce an expanded set of preliminary norms for learners in the disadvantaged schools of the peri-urban areas of the Eastern Cape, Grahamstown, on the Vassiliou Mathematics Foundation Phase Test (VASSI) and Vassiliou Mathematics Proficiency Test (VASSI), respectively. The test was administered to Grade 1-6 learners in four different schools all within Joza location, Grahamstown. For the learners’ convenience the tests were translated into isiXhosa, the translations were provided together with the original English questions. Archival data collected by honours students was also incorporated in this study. The total number of participants was N=724 which was comprised of 147 grade 1s, 123 grade 2s, 117 grade 3s, 128 grade 4s, 113 grade 5s and 96 grade 6s. Norm-referenced criterion was used in analysing the data. The results of this study are in accordance with those purporting the low performance of disadvantaged learners on the school subject, mathematics. Stanines for the various grades (Grade 1 to 6) were calculated and are presented in the study. This study has demonstrated that although gender, language and other ethnic variables have an impact on mathematics performance, quality of education and socioeconomic status have a significant effect. Further research is needed on the effect of quality of education and socioeconomic status on learners in disadvantaged schools on this test in particular.
- Full Text:
Design and application of link: A DSL for network frame manipulation
- Pennefather, Sean, Irwin, Barry V W
- Authors: Pennefather, Sean , Irwin, Barry V W
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/429230 , vital:72569 , https://ieeexplore.ieee.org/abstract/document/8251774
- Description: This paper describes the design and application of Link, a Domain Specific Language (DSL) targeting the development of network applications focused on traffic manipulation at the frame level. The development of Link is described through the identification and evaluation of intended applications and an example translator is implemented to target the FRAME board which was developed in conjunction with this research. Four application examples are then provided to help describe the feasibility of Link when used in conjunction with the implemented translator.
- Full Text:
- Authors: Pennefather, Sean , Irwin, Barry V W
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/429230 , vital:72569 , https://ieeexplore.ieee.org/abstract/document/8251774
- Description: This paper describes the design and application of Link, a Domain Specific Language (DSL) targeting the development of network applications focused on traffic manipulation at the frame level. The development of Link is described through the identification and evaluation of intended applications and an example translator is implemented to target the FRAME board which was developed in conjunction with this research. Four application examples are then provided to help describe the feasibility of Link when used in conjunction with the implemented translator.
- Full Text:
Design of a Message Passing Model for Use in a Heterogeneous CPU-NFP Framework for Network Analytics. Southern Africa Telecommunication Networks and Applications Conference (SATNAC) 2017, 3-10 September 2017
- Pennefather, Sean, Bradshaw, Karen L, Irwin, Barry V W
- Authors: Pennefather, Sean , Bradshaw, Karen L , Irwin, Barry V W
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/460011 , vital:75884 , ISBN 9780620767569 , http://dx.doi.org/10.18489/sacj.v31i2.692
- Description: Currently, network analytics requires direct access to network packets, normally through a third-party application, which means that obtaining realtime results is difficult. We propose the NFP-CPU heterogeneous framework to allow parts of applications written in the Go programming language to be executed on a Network Flow Processor (NFP) for enhanced performance. This paper explores the need and feasibility of implementing a message passing model for data transmission between the NFP and CPU, which is the crux of such a heterogeneous framework. Architectural differences between the two domains are highlighted within this context and we present a solution to bridging these differences.
- Full Text:
- Authors: Pennefather, Sean , Bradshaw, Karen L , Irwin, Barry V W
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/460011 , vital:75884 , ISBN 9780620767569 , http://dx.doi.org/10.18489/sacj.v31i2.692
- Description: Currently, network analytics requires direct access to network packets, normally through a third-party application, which means that obtaining realtime results is difficult. We propose the NFP-CPU heterogeneous framework to allow parts of applications written in the Go programming language to be executed on a Network Flow Processor (NFP) for enhanced performance. This paper explores the need and feasibility of implementing a message passing model for data transmission between the NFP and CPU, which is the crux of such a heterogeneous framework. Architectural differences between the two domains are highlighted within this context and we present a solution to bridging these differences.
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Determination of species and instars of the larvae of the Afrotropical species of Thanatophilus Leach, 1817 (Coleoptera, Silphidae)
- Daniel, Claire A, Midgley, John M, Villet, Martin H
- Authors: Daniel, Claire A , Midgley, John M , Villet, Martin H
- Date: 2017
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/59682 , vital:27638 , doi: 10.3897/afrinvertebr.58.12966
- Description: Thanatophilus micans and T. mutilatus have significance for forensic entomology. Their larvae are therefore described and a key is provided for identifying the larvae of Afrotropical Silphidae based on morphological characters. It is shown that seven common species of Thanatophilus can be distinguished by a 360 bp mtDNA sequence from the cytochrome oxidase I gene.
- Full Text:
- Authors: Daniel, Claire A , Midgley, John M , Villet, Martin H
- Date: 2017
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/59682 , vital:27638 , doi: 10.3897/afrinvertebr.58.12966
- Description: Thanatophilus micans and T. mutilatus have significance for forensic entomology. Their larvae are therefore described and a key is provided for identifying the larvae of Afrotropical Silphidae based on morphological characters. It is shown that seven common species of Thanatophilus can be distinguished by a 360 bp mtDNA sequence from the cytochrome oxidase I gene.
- Full Text:
Determination of species and instars of the larvae of the Afrotropical species of Thanatophilus Leach, 1817 (Coleoptera, Silphidae)
- Daniel, Claire A, Midgley, John M, Villet, Martin H
- Authors: Daniel, Claire A , Midgley, John M , Villet, Martin H
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/440652 , vital:73800 , https://doi.org/10.3897/ AfrInvertebr.58.12966
- Description: Thanatophilus micans and T. mutilatus have significance for forensic entomology. Their larvae are therefore described and a key is provided for identifying the larvae of Afrotropical Silphidae based on morphological characters. It is shown that seven common species of Thanatophilus can be distinguished by a 360 bp mtDNA sequence from the cytochrome oxidase I gene.
- Full Text:
- Authors: Daniel, Claire A , Midgley, John M , Villet, Martin H
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/440652 , vital:73800 , https://doi.org/10.3897/ AfrInvertebr.58.12966
- Description: Thanatophilus micans and T. mutilatus have significance for forensic entomology. Their larvae are therefore described and a key is provided for identifying the larvae of Afrotropical Silphidae based on morphological characters. It is shown that seven common species of Thanatophilus can be distinguished by a 360 bp mtDNA sequence from the cytochrome oxidase I gene.
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Developing academic literacies through understanding the nature of disciplinary knowledge
- Clarence, Sherran, McKenna, Sioux
- Authors: Clarence, Sherran , McKenna, Sioux
- Date: 2017
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61062 , vital:27942 , https://doi.org/10.18546/LRE.15.1.04
- Description: Much academic development work that is framed by academic literacies, especially that focused on writing, is concerned with disciplinary conventions and knowledges: conceptual, practical, and procedural. This paper argues, however, that academic literacies work tends to conflate literacy practices with disciplinary knowledge structures, thus obscuring the structures from which these practices emanate. This paper demonstrates how theoretical and analytical tools for conceptualizing disciplinary knowledge structures can connect these with academic literacies development work. Using recent studies that combine academic literacies and theories of knowledge in novel ways, this paper will show that understanding the knowledge structures of different disciplines can enable academic developers to build a stronger body of practice. This will enable academic developers working within disciplinary contexts to more ably speak to the nature of coming to know in higher education.
- Full Text:
- Authors: Clarence, Sherran , McKenna, Sioux
- Date: 2017
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61062 , vital:27942 , https://doi.org/10.18546/LRE.15.1.04
- Description: Much academic development work that is framed by academic literacies, especially that focused on writing, is concerned with disciplinary conventions and knowledges: conceptual, practical, and procedural. This paper argues, however, that academic literacies work tends to conflate literacy practices with disciplinary knowledge structures, thus obscuring the structures from which these practices emanate. This paper demonstrates how theoretical and analytical tools for conceptualizing disciplinary knowledge structures can connect these with academic literacies development work. Using recent studies that combine academic literacies and theories of knowledge in novel ways, this paper will show that understanding the knowledge structures of different disciplines can enable academic developers to build a stronger body of practice. This will enable academic developers working within disciplinary contexts to more ably speak to the nature of coming to know in higher education.
- Full Text:
Development and assessment of gastric-retentive sustained release metronidazole microcapsules
- Authors: Makan, Anjana
- Date: 2017
- Subjects: Metronidazole , Drug delivery systems , Helicobacter pylori , High performance liquid chromatography , Gas chromatography , Drugs , Drugs Controlled release
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/59240 , vital:27491
- Description: Helicobacter pylori is one of the most common pathogenic bacterial infections and is the leading cause of gastritis, gastroduodenal ulcer disease and gastric cancers. Studies have revealed the prevalence of Helicobacter pylori is high in many countries around the globe. Although Helicobacter pylori is highly sensitive to antimicrobial agents in vitro the clinical eradication rate of the disease is still low. The instability of API at gastric pH, low concentration of API in the gastric mucosa and short gastric residence times are the main reasons for poor eradication rates. The high prevalence rate of this disease necessitates the design and development of gastric-retentive site specific oral dosage forms for the optimized delivery of existing therapeutic molecules and may be an approach to improving the eradication rate of Helicobacter pylori. Metronidazole (MTZ) is a 5-nitroimidazole derivative that exhibits antibiotic and antiprotozoal activity. MTZ is used in combination with other compounds for the treatment of Helicobacter pylori in peptic ulcer disease. MTZ is a potential candidate for inclusion in a sustained release gastric-retentive delivery system that acts in the stomach and since it is unstable in the intestinal/colonic environment enhancing gastric residence time would be a therapeutic advantage. MTZ is a cost-effective therapy that exhibits good anti-microbial activity and has a favourable pharmacokinetic profile. A sustained release gastric-retentive formulation is therefore proposed as an approach to enhance the local delivery of MTZ and improve treatment outcomes for patients infected with Helicobacter pylori. A stability indicating Reversed-Phase High Performance Liquid Chromatography (RP- HPLC) method for the quantitation of MTZ in pharmaceutical dosage forms was developed and optimised using a Central Composite Design (CCD) approach. The RP-HPLC method was found to be linear, accurate, precise, sensitive, selective, and was applied to the analysis of MTZ in commercially available medicines. Preformulation studies were conducted as preparative work prior to manufacture gastric- retentive sustained release MTZ microcapsules. The experiments conducted were tailored for the development of sustained release MTZ microcapsules using a solvent evaporation method. The particle size and shape of the microcapsules was investigated using Scanning Electron Microscopy (SEM). MTZ- excipient compatibility studies were performed using Fourier Transform Infra-red Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC) and X-Ray Diffraction (XRD). The results revealed that no definite interaction between MTZ and intended excipients to be used for manufacture of MTZ formulations occurred. A solvent evaporation procedure was used for the manufacture of MTZ microcapsules. Preliminary formulations were manufactured using two different grades of Methocel® at various levels. In addition the impact of processing parameters on performance was also investigated. The formulations were assessed in terms of in vitro release, buoyancy, yield, encapsulation efficiency and microcapsule size. Formulation optimisation was undertaken using a CCD approach and numerical optimisation was used to predict an optimised formulation composition that would produce minimal initial MTZ release, maximum MTZ release at 12 hours and maximum buoyancy, encapsulation efficiency and yield. The kinetics of MTZ release from microcapsules was established by fitting in vitro release data to different mathematical models. Higuchi model and first-order model appeared to best fit the data as majority of the formulation batches had highest R2 values for these models. Short-term stability assessment of the optimised formulation was established by undertaking stability studies at 25°C/60% RH and 40°C/75%RH. No significant changes in any of the CQA were observed over 30 days of stability testing. A gas chromatographic (GC) method was developed and validated for the quantitation of residual acetone and n-hexane. The optimised formulation contained 213.60 ppm/g acetone and 25.23 ppm/g n-hexane which are well below the limits set for residual solvents. In conclusion, gastric-retentive sustained release MTZ microcapsules with potential for further development and optimisation have been successfully developed and assessed in these studies. , Thesis (MSc) -- Faculty of Pharmacy, Pharmacy, 2017
- Full Text:
- Authors: Makan, Anjana
- Date: 2017
- Subjects: Metronidazole , Drug delivery systems , Helicobacter pylori , High performance liquid chromatography , Gas chromatography , Drugs , Drugs Controlled release
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/59240 , vital:27491
- Description: Helicobacter pylori is one of the most common pathogenic bacterial infections and is the leading cause of gastritis, gastroduodenal ulcer disease and gastric cancers. Studies have revealed the prevalence of Helicobacter pylori is high in many countries around the globe. Although Helicobacter pylori is highly sensitive to antimicrobial agents in vitro the clinical eradication rate of the disease is still low. The instability of API at gastric pH, low concentration of API in the gastric mucosa and short gastric residence times are the main reasons for poor eradication rates. The high prevalence rate of this disease necessitates the design and development of gastric-retentive site specific oral dosage forms for the optimized delivery of existing therapeutic molecules and may be an approach to improving the eradication rate of Helicobacter pylori. Metronidazole (MTZ) is a 5-nitroimidazole derivative that exhibits antibiotic and antiprotozoal activity. MTZ is used in combination with other compounds for the treatment of Helicobacter pylori in peptic ulcer disease. MTZ is a potential candidate for inclusion in a sustained release gastric-retentive delivery system that acts in the stomach and since it is unstable in the intestinal/colonic environment enhancing gastric residence time would be a therapeutic advantage. MTZ is a cost-effective therapy that exhibits good anti-microbial activity and has a favourable pharmacokinetic profile. A sustained release gastric-retentive formulation is therefore proposed as an approach to enhance the local delivery of MTZ and improve treatment outcomes for patients infected with Helicobacter pylori. A stability indicating Reversed-Phase High Performance Liquid Chromatography (RP- HPLC) method for the quantitation of MTZ in pharmaceutical dosage forms was developed and optimised using a Central Composite Design (CCD) approach. The RP-HPLC method was found to be linear, accurate, precise, sensitive, selective, and was applied to the analysis of MTZ in commercially available medicines. Preformulation studies were conducted as preparative work prior to manufacture gastric- retentive sustained release MTZ microcapsules. The experiments conducted were tailored for the development of sustained release MTZ microcapsules using a solvent evaporation method. The particle size and shape of the microcapsules was investigated using Scanning Electron Microscopy (SEM). MTZ- excipient compatibility studies were performed using Fourier Transform Infra-red Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC) and X-Ray Diffraction (XRD). The results revealed that no definite interaction between MTZ and intended excipients to be used for manufacture of MTZ formulations occurred. A solvent evaporation procedure was used for the manufacture of MTZ microcapsules. Preliminary formulations were manufactured using two different grades of Methocel® at various levels. In addition the impact of processing parameters on performance was also investigated. The formulations were assessed in terms of in vitro release, buoyancy, yield, encapsulation efficiency and microcapsule size. Formulation optimisation was undertaken using a CCD approach and numerical optimisation was used to predict an optimised formulation composition that would produce minimal initial MTZ release, maximum MTZ release at 12 hours and maximum buoyancy, encapsulation efficiency and yield. The kinetics of MTZ release from microcapsules was established by fitting in vitro release data to different mathematical models. Higuchi model and first-order model appeared to best fit the data as majority of the formulation batches had highest R2 values for these models. Short-term stability assessment of the optimised formulation was established by undertaking stability studies at 25°C/60% RH and 40°C/75%RH. No significant changes in any of the CQA were observed over 30 days of stability testing. A gas chromatographic (GC) method was developed and validated for the quantitation of residual acetone and n-hexane. The optimised formulation contained 213.60 ppm/g acetone and 25.23 ppm/g n-hexane which are well below the limits set for residual solvents. In conclusion, gastric-retentive sustained release MTZ microcapsules with potential for further development and optimisation have been successfully developed and assessed in these studies. , Thesis (MSc) -- Faculty of Pharmacy, Pharmacy, 2017
- Full Text: