Push-pull type Co (III) corroles
- Niu, Yingjie, Zhu, Weihua, Mack, John, Dubazana, Nadine, Nyokong, Tebello, Fu, Bo, Xu, Haijun, Liang, Xu
- Authors: Niu, Yingjie , Zhu, Weihua , Mack, John , Dubazana, Nadine , Nyokong, Tebello , Fu, Bo , Xu, Haijun , Liang, Xu
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/190826 , vital:45032 , xlink:href="https://doi.org/10.1142/S1088424621500279"
- Description: The rational design and preparation of three A2B type Co(III)triarylcorroles with push- and pull-substituents are reported. The structure-property relationships were identified by comparing their optically spectroscopic and electrochemical properties to trends predicted in DFT and TD-DFT calculations. The results demonstrate that the Co(III)triarylcorroles are highly efficient catalysts for electrocatalyzed hydrogen evolutions (HERs) and oxygen reductions (ORRs), and that their reactivity can be modulated by changing the meso-B-substituent of the Co(III)Corroles.
- Full Text:
- Date Issued: 2021
- Authors: Niu, Yingjie , Zhu, Weihua , Mack, John , Dubazana, Nadine , Nyokong, Tebello , Fu, Bo , Xu, Haijun , Liang, Xu
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/190826 , vital:45032 , xlink:href="https://doi.org/10.1142/S1088424621500279"
- Description: The rational design and preparation of three A2B type Co(III)triarylcorroles with push- and pull-substituents are reported. The structure-property relationships were identified by comparing their optically spectroscopic and electrochemical properties to trends predicted in DFT and TD-DFT calculations. The results demonstrate that the Co(III)triarylcorroles are highly efficient catalysts for electrocatalyzed hydrogen evolutions (HERs) and oxygen reductions (ORRs), and that their reactivity can be modulated by changing the meso-B-substituent of the Co(III)Corroles.
- Full Text:
- Date Issued: 2021
Sozialistische, monumentalkunst und globale bildtransfers:
- Authors: Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146233 , vital:38507 , ISBN 9783412505745
- Description: Book abstract. Socialist image cultures went far beyond political iconography: beyond hammer and sickle, red banners or stylized portraits of Lenin, they could create normality and have an integrative effect, create identity, but also be subversive. Images emotionally linked the population to the system. The anthology deals with various popular media from late socialism: picture postcards, packaging, shop window decorations and other everyday forms of pictures. The articles describe areas of tension between the political program of a uniform socialist hemisphere and the visual breaks in cultural and social practice. A glossary explains key aesthetic terms.
- Full Text:
- Date Issued: 2019
- Authors: Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146233 , vital:38507 , ISBN 9783412505745
- Description: Book abstract. Socialist image cultures went far beyond political iconography: beyond hammer and sickle, red banners or stylized portraits of Lenin, they could create normality and have an integrative effect, create identity, but also be subversive. Images emotionally linked the population to the system. The anthology deals with various popular media from late socialism: picture postcards, packaging, shop window decorations and other everyday forms of pictures. The articles describe areas of tension between the political program of a uniform socialist hemisphere and the visual breaks in cultural and social practice. A glossary explains key aesthetic terms.
- Full Text:
- Date Issued: 2019
Ultrafast Photodynamics of the Indoline Dye D149 Adsorbed to Porous ZnO in Dye‐Sensitized Solar Cells
- Rohwer, Egmont, Richter, Christoph, Heming, Nadine, Strauch, Kerstin, Litwinski, Christian, Nyokong, Tebello, Schlettwein, Derck, Schwoerer, Heinrich
- Authors: Rohwer, Egmont , Richter, Christoph , Heming, Nadine , Strauch, Kerstin , Litwinski, Christian , Nyokong, Tebello , Schlettwein, Derck , Schwoerer, Heinrich
- Date: 2013
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/242153 , vital:51006 , xlink:href="https://doi.org/10.1002/cphc.201200715"
- Description: We investigate the ultrafast dynamics of the photoinduced electron transfer between surface-adsorbed indoline D149 dye and porous ZnO as used in the working electrodes of dye-sensitized solar cells. Transient absorption spectroscopy was conducted on the dye in solution, on solid state samples and for the latter in contact to a I−/I3− redox electrolyte typical for dye-sensitized solar cells to elucidate the effect of each component in the observed dynamics. D149 in a solution of 1:1 acetonitrile and tert-butyl alcohol shows excited-state lifetimes of 300±50 ps. This signature is severely quenched when D149 is adsorbed to ZnO, with the fastest component of the decay trace measured at 150±20 fs due to the charge-transfer mechanism. Absorption bands of the oxidized dye molecule were investigated to determine regeneration times which are in excess of 1 ns. The addition of the redox electrolyte to the system results in faster regeneration times, of the order of 1 ns.
- Full Text:
- Date Issued: 2013
- Authors: Rohwer, Egmont , Richter, Christoph , Heming, Nadine , Strauch, Kerstin , Litwinski, Christian , Nyokong, Tebello , Schlettwein, Derck , Schwoerer, Heinrich
- Date: 2013
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/242153 , vital:51006 , xlink:href="https://doi.org/10.1002/cphc.201200715"
- Description: We investigate the ultrafast dynamics of the photoinduced electron transfer between surface-adsorbed indoline D149 dye and porous ZnO as used in the working electrodes of dye-sensitized solar cells. Transient absorption spectroscopy was conducted on the dye in solution, on solid state samples and for the latter in contact to a I−/I3− redox electrolyte typical for dye-sensitized solar cells to elucidate the effect of each component in the observed dynamics. D149 in a solution of 1:1 acetonitrile and tert-butyl alcohol shows excited-state lifetimes of 300±50 ps. This signature is severely quenched when D149 is adsorbed to ZnO, with the fastest component of the decay trace measured at 150±20 fs due to the charge-transfer mechanism. Absorption bands of the oxidized dye molecule were investigated to determine regeneration times which are in excess of 1 ns. The addition of the redox electrolyte to the system results in faster regeneration times, of the order of 1 ns.
- Full Text:
- Date Issued: 2013
Utopia, dystopia, neo-utopia: three Generations of contemporary Artists in Angola. Atlantico: Contemporary Art in Angola and its diaspora today
- Authors: Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146332 , vital:38516 , ISBN 9789892088105
- Description: Book abstract. The book Atlantica: Contemporary Art from Angola and its Diaspora marks the start of publisher Hangar Books, specialising in publications within the context of contemporary arts, with particular incidence on southern epistemology.
- Full Text:
- Date Issued: 2019
- Authors: Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146332 , vital:38516 , ISBN 9789892088105
- Description: Book abstract. The book Atlantica: Contemporary Art from Angola and its Diaspora marks the start of publisher Hangar Books, specialising in publications within the context of contemporary arts, with particular incidence on southern epistemology.
- Full Text:
- Date Issued: 2019
Women's experience of abortion : a qualitative study
- Authors: Taylor, Gaye Lesley
- Date: 1998
- Subjects: Abortion , Abortion -- South Africa , Women -- Counseling of
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:708 , http://hdl.handle.net/10962/d1006522 , Abortion , Abortion -- South Africa , Women -- Counseling of
- Description: Abortion is an emotive topic that always raises strong feelings. The purpose of this study, however, is not to focus on the religious, political or moral questions surrounding abortion. Abortion is a reality and in South Africa, where it has only recently become legal, there is a need to have an understanding of the effects on women in order to provide counselling services. There is also a need to provide services for the many women who have had illegal terminations in the past. This study reviewed the most recent literature on the subject and the researcher takes the view that although the scientific literature states there is little long term psychological effect of abortion, the non-positivist literature which records women's experiences tells another story. Some of the problems with the scientific literature is that psychological effects are not defined and there may be political motivation for the study, ie. an attempt is made to prove that the health costs are not high for abortion because there is little long term effect. The researcher, however, feels this does a disservice to women who have had abortions because there is a failure to provide counselling services. Some members of the feminist movement also deserve criticism because in their haste to give women their rights they fail to allow a woman to thoroughly explore her options beforehand and to provide support services afterwards. The researcher, however, also identified a new theme in the literature which has been called a maturing of the feminist viewpoint that along with the right to abortion, women also have a right to the mixed feelings that go with making, what is for many, a very painful decision. There is a recognition that abortion is about loss and thus there is a corresponding need to acknowledge women's need to mourn and to provide services. The study does not include the experience of women who seek abortions for reasons of poverty. It also excludes the experience of women who have abortions as a result of rape, incest or harm to the foetus. It is a qualitative study and a non-probability sampling technique which comprised snowball and purposive methods was used to identify respondents. In-depth semi-structured interviews using a broad theme of questions were conducted with five respondents. The women were asked to tell the stories of their abortions: their and their partner's feelings before and after, how they decided and the actual experience. They were also asked to identify counselling requirements, what they found helpful and what would have helped. The literature and the findings support the researcher's view that women who find themselves with an unexpected pregnancy need an opportunity to objectively consider all their options, namely keeping the baby, adoption or abortion, and to have an objective counsellor assist them in vigorously considering these. If they decide on a termination they need to be given as much information as possible about the procedure and about how they are likely to feel. Afterwards counselling should be made available and women should be encouraged to use the service. They need to be assisted to explore all ways of coming to terms with it such as through dream work, dialogueing with the unborn child through a letter and for those with religious beliefs seeking absolution from the church. There is a great need for a Christian and other religious ministry in this regard. Self-help therapies such as support groups can also be helpful
- Full Text:
- Date Issued: 1998
- Authors: Taylor, Gaye Lesley
- Date: 1998
- Subjects: Abortion , Abortion -- South Africa , Women -- Counseling of
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:708 , http://hdl.handle.net/10962/d1006522 , Abortion , Abortion -- South Africa , Women -- Counseling of
- Description: Abortion is an emotive topic that always raises strong feelings. The purpose of this study, however, is not to focus on the religious, political or moral questions surrounding abortion. Abortion is a reality and in South Africa, where it has only recently become legal, there is a need to have an understanding of the effects on women in order to provide counselling services. There is also a need to provide services for the many women who have had illegal terminations in the past. This study reviewed the most recent literature on the subject and the researcher takes the view that although the scientific literature states there is little long term psychological effect of abortion, the non-positivist literature which records women's experiences tells another story. Some of the problems with the scientific literature is that psychological effects are not defined and there may be political motivation for the study, ie. an attempt is made to prove that the health costs are not high for abortion because there is little long term effect. The researcher, however, feels this does a disservice to women who have had abortions because there is a failure to provide counselling services. Some members of the feminist movement also deserve criticism because in their haste to give women their rights they fail to allow a woman to thoroughly explore her options beforehand and to provide support services afterwards. The researcher, however, also identified a new theme in the literature which has been called a maturing of the feminist viewpoint that along with the right to abortion, women also have a right to the mixed feelings that go with making, what is for many, a very painful decision. There is a recognition that abortion is about loss and thus there is a corresponding need to acknowledge women's need to mourn and to provide services. The study does not include the experience of women who seek abortions for reasons of poverty. It also excludes the experience of women who have abortions as a result of rape, incest or harm to the foetus. It is a qualitative study and a non-probability sampling technique which comprised snowball and purposive methods was used to identify respondents. In-depth semi-structured interviews using a broad theme of questions were conducted with five respondents. The women were asked to tell the stories of their abortions: their and their partner's feelings before and after, how they decided and the actual experience. They were also asked to identify counselling requirements, what they found helpful and what would have helped. The literature and the findings support the researcher's view that women who find themselves with an unexpected pregnancy need an opportunity to objectively consider all their options, namely keeping the baby, adoption or abortion, and to have an objective counsellor assist them in vigorously considering these. If they decide on a termination they need to be given as much information as possible about the procedure and about how they are likely to feel. Afterwards counselling should be made available and women should be encouraged to use the service. They need to be assisted to explore all ways of coming to terms with it such as through dream work, dialogueing with the unborn child through a letter and for those with religious beliefs seeking absolution from the church. There is a great need for a Christian and other religious ministry in this regard. Self-help therapies such as support groups can also be helpful
- Full Text:
- Date Issued: 1998
Electro-catalyzed oxidation of reduced glutathione and 2-mercaptoethanol by cobalt phthalocyanine-containing screen printed graphite electrodes
- Sehlotho, Nthapo, Griveau, Sophie, Ruillé, Nadine, Boujtita, Mohammed, Nyokong, Tebello, Bedioui, Fethi
- Authors: Sehlotho, Nthapo , Griveau, Sophie , Ruillé, Nadine , Boujtita, Mohammed , Nyokong, Tebello , Bedioui, Fethi
- Date: 2008
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/265935 , vital:53902 , xlink:href="https://doi.org/10.1016/j.msec.2007.10.054"
- Description: Electro-catalytic behavior of screen printed graphite electrodes modified with cobalt phthalocyanine (CoPc) towards the oxidation of reduced glutathione (GSH) and 2-mercaptoethanol (2-ME) is reported. We find, by using cyclic voltammetry, that the oxidation of 2-ME occurs at 0.2 V vs Ag/AgCl and − 0.3 vs Ag/AgCl V at pH = 7 and pH = 13, respectively and that of GSH occurs at 0.4 V vs Ag/AgCl and 0.0 V vs Ag/AgCl at pH = 7 and 13, respectively. The electro-catalytic activity depends on the method of electrode modification and the amount of catalyst incorporated in the ink used to fabricate the SPCEs. The highest activity was obtained with electrodes prepared with 2.5% (w:w) of CoPc.
- Full Text:
- Date Issued: 2008
- Authors: Sehlotho, Nthapo , Griveau, Sophie , Ruillé, Nadine , Boujtita, Mohammed , Nyokong, Tebello , Bedioui, Fethi
- Date: 2008
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/265935 , vital:53902 , xlink:href="https://doi.org/10.1016/j.msec.2007.10.054"
- Description: Electro-catalytic behavior of screen printed graphite electrodes modified with cobalt phthalocyanine (CoPc) towards the oxidation of reduced glutathione (GSH) and 2-mercaptoethanol (2-ME) is reported. We find, by using cyclic voltammetry, that the oxidation of 2-ME occurs at 0.2 V vs Ag/AgCl and − 0.3 vs Ag/AgCl V at pH = 7 and pH = 13, respectively and that of GSH occurs at 0.4 V vs Ag/AgCl and 0.0 V vs Ag/AgCl at pH = 7 and 13, respectively. The electro-catalytic activity depends on the method of electrode modification and the amount of catalyst incorporated in the ink used to fabricate the SPCEs. The highest activity was obtained with electrodes prepared with 2.5% (w:w) of CoPc.
- Full Text:
- Date Issued: 2008
The initial grounding of rational numbers : an investigation
- Authors: Brown, Bruce John Lindsay
- Date: 2007
- Subjects: Number theory Numbers, Rational -- Study and teaching (Elementary) Numeracy -- Study and teaching (Elementary) Mathematics -- Study and teaching (Elementary)
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1904 , http://hdl.handle.net/10962/d1006351
- Description: This small scale exploratory research project investigated the grounding of rational number concepts in informal, everyday life situations. A qualitative approach was taken to allow for the identification and then in depth investigation, of issues of importance for such a grounding of rational number understanding. The methodology followed could be seen as a combination of grounded theory and developmental research. And the data was generated through in-depth and clinical interviews structured around a number of grounded tasks related to rational numbers. The research comprised three cycles of interviews that were transcribed and then analysed in detail, interspersed with periods of reading and reflection. The pilot cycle involved a single grade three teacher, the second cycle involved 2 grade three teachers and the third cycle involved 2 grade three children. The research identified a number of different perspectives that were all important for the development of a fundamental intuitive understanding that could be considered personally meaningful to the individual concerned and relevant to the development of rational number concepts. Firstly in order to motivate and engage the child on a personal level the grounding situation needed to be seen as personally significant by the child. Secondly, coordinating operations provided a means of developing a fundamental intuitive understanding, through coordination with affording structures of the situation that are relevant to rational numbers. Finally, goal directed actions that are deliberately structured to achieve explicit goals in a situation are important for the development of more explicit concepts and skills fundamental for rational number understanding. Different explicit structures give rise to different interpretations of rational numbers in grounding situations. In addition to these perspectives, it became evident that building and learning representations was important for developing a more particularly mathematical understanding, based on the fundamental understanding derived from the child's grounded experience. The conclusion drawn in this research as a result of this complexity, is that to achieve a comprehensive and meaningful grounding, children's learning of rational numbers will not follow a simple linear trajectory. Rather this process forms a web of learning, threading coordinating operations for intuitive development, interpretations for explicit grounding and representations to develop more formal mathematical conceptions.
- Full Text:
- Date Issued: 2007
- Authors: Brown, Bruce John Lindsay
- Date: 2007
- Subjects: Number theory Numbers, Rational -- Study and teaching (Elementary) Numeracy -- Study and teaching (Elementary) Mathematics -- Study and teaching (Elementary)
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1904 , http://hdl.handle.net/10962/d1006351
- Description: This small scale exploratory research project investigated the grounding of rational number concepts in informal, everyday life situations. A qualitative approach was taken to allow for the identification and then in depth investigation, of issues of importance for such a grounding of rational number understanding. The methodology followed could be seen as a combination of grounded theory and developmental research. And the data was generated through in-depth and clinical interviews structured around a number of grounded tasks related to rational numbers. The research comprised three cycles of interviews that were transcribed and then analysed in detail, interspersed with periods of reading and reflection. The pilot cycle involved a single grade three teacher, the second cycle involved 2 grade three teachers and the third cycle involved 2 grade three children. The research identified a number of different perspectives that were all important for the development of a fundamental intuitive understanding that could be considered personally meaningful to the individual concerned and relevant to the development of rational number concepts. Firstly in order to motivate and engage the child on a personal level the grounding situation needed to be seen as personally significant by the child. Secondly, coordinating operations provided a means of developing a fundamental intuitive understanding, through coordination with affording structures of the situation that are relevant to rational numbers. Finally, goal directed actions that are deliberately structured to achieve explicit goals in a situation are important for the development of more explicit concepts and skills fundamental for rational number understanding. Different explicit structures give rise to different interpretations of rational numbers in grounding situations. In addition to these perspectives, it became evident that building and learning representations was important for developing a more particularly mathematical understanding, based on the fundamental understanding derived from the child's grounded experience. The conclusion drawn in this research as a result of this complexity, is that to achieve a comprehensive and meaningful grounding, children's learning of rational numbers will not follow a simple linear trajectory. Rather this process forms a web of learning, threading coordinating operations for intuitive development, interpretations for explicit grounding and representations to develop more formal mathematical conceptions.
- Full Text:
- Date Issued: 2007
Nuruddin Farah: variations on the theme of return
- Authors: Naicker, Kamil
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149643 , vital:38871 , https://www.ajol.info/index.php/tvl/article/view/196356
- Description: This article explores the role of the returnee protagonist in selected works of Nuruddin Farah. Nadine Gordimer described Farah as “one of the real interpreters” of Africa and this article argues that Farah’s returnees operate as interpreters themselves, their liminality working to mediate between international readers and “local” subject matter. However, it also observes that Farah, who spent decades in exile, is often as preoccupied with writing non-belonging as he is with rendering Somalia itself. Farah’s returnee narratives are, broadly, novels of redress, in which characters enact their return in an attempt to seek out the missing, rebuild the lost or reclaim the stolen, with imperfect results. In exploring these variations on homecoming, the paper investigates the ways in which Farah’s body of work reflects shifts in identity politics over time, and the unique pressures these shifts exert on the homecoming arc.
- Full Text:
- Date Issued: 2020
- Authors: Naicker, Kamil
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149643 , vital:38871 , https://www.ajol.info/index.php/tvl/article/view/196356
- Description: This article explores the role of the returnee protagonist in selected works of Nuruddin Farah. Nadine Gordimer described Farah as “one of the real interpreters” of Africa and this article argues that Farah’s returnees operate as interpreters themselves, their liminality working to mediate between international readers and “local” subject matter. However, it also observes that Farah, who spent decades in exile, is often as preoccupied with writing non-belonging as he is with rendering Somalia itself. Farah’s returnee narratives are, broadly, novels of redress, in which characters enact their return in an attempt to seek out the missing, rebuild the lost or reclaim the stolen, with imperfect results. In exploring these variations on homecoming, the paper investigates the ways in which Farah’s body of work reflects shifts in identity politics over time, and the unique pressures these shifts exert on the homecoming arc.
- Full Text:
- Date Issued: 2020
Jesus, Che, Luaty: on the relationship between a digital picture and an iconic image in political iconography in Angola
- Authors: Siegert, Nadine
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145919 , vital:38478 , DOI: 10.2979/africatoday.65.1.04
- Description: This essay makes a close examination of a selection of images of the Angolan rapper Luaty Beirão, who became internationally known as a political activist during his imprisonment in June 2015, accused of staging a coup d'état. By analyzing and interpreting images that were highly mediatized during that period, this article shows how political iconography can be traced back to Christian iconography and other images. Such filiations of images and their mediatization invoke a power that contributes to the formation of political and popular icons. This article analyzes this nexus by deconstructing the transmutation of a photograph into a popular icon.
- Full Text:
- Date Issued: 2018
- Authors: Siegert, Nadine
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145919 , vital:38478 , DOI: 10.2979/africatoday.65.1.04
- Description: This essay makes a close examination of a selection of images of the Angolan rapper Luaty Beirão, who became internationally known as a political activist during his imprisonment in June 2015, accused of staging a coup d'état. By analyzing and interpreting images that were highly mediatized during that period, this article shows how political iconography can be traced back to Christian iconography and other images. Such filiations of images and their mediatization invoke a power that contributes to the formation of political and popular icons. This article analyzes this nexus by deconstructing the transmutation of a photograph into a popular icon.
- Full Text:
- Date Issued: 2018
The experiences of pregnant teenagers as related to ante-natal care
- Authors: Pienaar, Nadine
- Date: 2011
- Subjects: Pregnant teenagers -- South Africa -- Nelson Mandela Metropolitan Municpality , Prenatal diagnosis
- Language: English
- Type: Thesis , Masters , MCur
- Identifier: vital:10028 , http://hdl.handle.net/10948/1321 , Pregnant teenagers -- South Africa -- Nelson Mandela Metropolitan Municpality , Prenatal diagnosis
- Description: The experiences of pregnant teenagers as related to ante-natal care were researched. The primary objective of the study was to explore and describe the experiences pregnant teenagers had of their ante-natal care. The researcher recommended measures based on the findings of the study to midwives to encourage ante-natal care clinic attendance amongst pregnant teenagers. The recommendations were such that even nurses at Primary Health Care clinics could utilise them as they also come into contact with pregnant teenagers. An increasing number of pregnant teenagers in the Nelson Mandela Metropolitan Municipality area are admitted to referral hospitals with complications during pregnancy and labour. Some of these teenagers are un-booked or had only a few ante-natal clinic visits. The researcher therefore wanted to obtain first hand information related to the reluctance of pregnant teenagers to attend ante-natal care clinics. Attendance at ante-natal care clinics plays an important part in enabling the staff to screen pregnant mothers for health problems and so limit complications. Hence the concern and need to develop measures to motivate pregnant teenagers to attend ante-natal clinics.
- Full Text: false
- Date Issued: 2011
- Authors: Pienaar, Nadine
- Date: 2011
- Subjects: Pregnant teenagers -- South Africa -- Nelson Mandela Metropolitan Municpality , Prenatal diagnosis
- Language: English
- Type: Thesis , Masters , MCur
- Identifier: vital:10028 , http://hdl.handle.net/10948/1321 , Pregnant teenagers -- South Africa -- Nelson Mandela Metropolitan Municpality , Prenatal diagnosis
- Description: The experiences of pregnant teenagers as related to ante-natal care were researched. The primary objective of the study was to explore and describe the experiences pregnant teenagers had of their ante-natal care. The researcher recommended measures based on the findings of the study to midwives to encourage ante-natal care clinic attendance amongst pregnant teenagers. The recommendations were such that even nurses at Primary Health Care clinics could utilise them as they also come into contact with pregnant teenagers. An increasing number of pregnant teenagers in the Nelson Mandela Metropolitan Municipality area are admitted to referral hospitals with complications during pregnancy and labour. Some of these teenagers are un-booked or had only a few ante-natal clinic visits. The researcher therefore wanted to obtain first hand information related to the reluctance of pregnant teenagers to attend ante-natal care clinics. Attendance at ante-natal care clinics plays an important part in enabling the staff to screen pregnant mothers for health problems and so limit complications. Hence the concern and need to develop measures to motivate pregnant teenagers to attend ante-natal clinics.
- Full Text: false
- Date Issued: 2011
Rethinking the dialectics of rural and urban in African art and scholarship:
- Siegenthaler, Fiona, Nzewi, Ugochukwu-Smooth C, Siegert, Nadine
- Authors: Siegenthaler, Fiona , Nzewi, Ugochukwu-Smooth C , Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146022 , vital:38488 , DOI: 10.1080/19301944.2018.1538856
- Description: This issue of Critical Interventions is dedicated to rethinking the dialectics of the rural and the urban in African art and scholarship. Inspired by the general theme of the European Conference of African Studies (ECAS/AEGIS) in Basel (June 28 to July 1, 2017), Urban Africa – Urban Africans: New Encounters of the Rural and the Urban, the guest editors of this issue hosted two panels on the relationship of urban-based artists and their interest in rural topographies, aesthetics, and cultural practices.
- Full Text:
- Date Issued: 2019
- Authors: Siegenthaler, Fiona , Nzewi, Ugochukwu-Smooth C , Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146022 , vital:38488 , DOI: 10.1080/19301944.2018.1538856
- Description: This issue of Critical Interventions is dedicated to rethinking the dialectics of the rural and the urban in African art and scholarship. Inspired by the general theme of the European Conference of African Studies (ECAS/AEGIS) in Basel (June 28 to July 1, 2017), Urban Africa – Urban Africans: New Encounters of the Rural and the Urban, the guest editors of this issue hosted two panels on the relationship of urban-based artists and their interest in rural topographies, aesthetics, and cultural practices.
- Full Text:
- Date Issued: 2019
Another world is possible: the socialist mural in Luanda as Visual Anticipation of a New Socialist Society. We travel the SpaceWay-Black Imagination, Fragments and Diffractions
- Authors: Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146309 , vital:38514 , ISBN 9783960915300
- Description: Book abstract. From the visual politics of the FRELIMO-liberation script in Mozambique via the brooms and spoons of Le Balai Citoyen in Burkina Faso, to the updating of images from past revolutions on Twitter and Facebook, often in the diaspora – images play a key role in the envisioning of futures and social utopia. And more than that: Revolutions, understood as moments of radical social and cultural change, are driven by images, as empirical investigations on- and offline show. But what actually constitutes the 'seismographic power' of images, and the sustainability of icons from past ruptures in terms of radicalism, such as the portraits of Burkina Faso's and Mozambiques first presidents' Thomas Sankara and Samora Machel?.
- Full Text:
- Date Issued: 2019
- Authors: Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146309 , vital:38514 , ISBN 9783960915300
- Description: Book abstract. From the visual politics of the FRELIMO-liberation script in Mozambique via the brooms and spoons of Le Balai Citoyen in Burkina Faso, to the updating of images from past revolutions on Twitter and Facebook, often in the diaspora – images play a key role in the envisioning of futures and social utopia. And more than that: Revolutions, understood as moments of radical social and cultural change, are driven by images, as empirical investigations on- and offline show. But what actually constitutes the 'seismographic power' of images, and the sustainability of icons from past ruptures in terms of radicalism, such as the portraits of Burkina Faso's and Mozambiques first presidents' Thomas Sankara and Samora Machel?.
- Full Text:
- Date Issued: 2019
Intervening into the future script: a conversation about fiction, magic, and the speculative power of Images1
- Authors: Henda, K K , Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146299 , vital:38513 , ISBN 9783839446010
- Description: Book abstract. A new take on Afrofuturism, this book gathers together a range of contemporary voices who, carrying legacies of 500 years of contact between Africa, Europe, and the Americas, reach towards the stars and unknown planets, galaxies, and ways of being. Writing from queer and feminist perspectives and circumnavigating continents, they recalibrate definitions of Afrofuturism. The editors and contributors of this exciting volume thus reflect upon the re-emergence of Black visions of political and cultural futures, proposing practices, identities, and collectivities.
- Full Text:
- Date Issued: 2019
- Authors: Henda, K K , Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146299 , vital:38513 , ISBN 9783839446010
- Description: Book abstract. A new take on Afrofuturism, this book gathers together a range of contemporary voices who, carrying legacies of 500 years of contact between Africa, Europe, and the Americas, reach towards the stars and unknown planets, galaxies, and ways of being. Writing from queer and feminist perspectives and circumnavigating continents, they recalibrate definitions of Afrofuturism. The editors and contributors of this exciting volume thus reflect upon the re-emergence of Black visions of political and cultural futures, proposing practices, identities, and collectivities.
- Full Text:
- Date Issued: 2019
Art topples monuments: artistic practice and colonial/postcolonial relations in the public space of Luanda
- Authors: Siegert, Nadine
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147014 , vital:38585
- Description: Even though there have been very few modern and contemporary artworks in the urban space of Luanda in the years after independence in 1975—and especially after the end of the civil war in 2002—there are two works by Angolan artists that are of particular interest: the sculpture Mitologias II (1984) by António Ole (b. 1951) and the photographic series Redefining the Power (2011) by Kiluanji Kia Henda (b. 1978). Both works address the possibility of using contemporary art as a symbolic form of the replacement of power, since both are built on pedestals that had previously supported monuments of Portuguese colonial power. They might, therefore, be read as a form of substitution for monuments that would commemorate and celebrate independence or the end of colonialism. This article also discusses whether these two artworks can also be regarded as counter-monuments and this contributes to the discourse on the visual and material culture of Lusophone Africa.
- Full Text:
- Date Issued: 2018
- Authors: Siegert, Nadine
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147014 , vital:38585
- Description: Even though there have been very few modern and contemporary artworks in the urban space of Luanda in the years after independence in 1975—and especially after the end of the civil war in 2002—there are two works by Angolan artists that are of particular interest: the sculpture Mitologias II (1984) by António Ole (b. 1951) and the photographic series Redefining the Power (2011) by Kiluanji Kia Henda (b. 1978). Both works address the possibility of using contemporary art as a symbolic form of the replacement of power, since both are built on pedestals that had previously supported monuments of Portuguese colonial power. They might, therefore, be read as a form of substitution for monuments that would commemorate and celebrate independence or the end of colonialism. This article also discusses whether these two artworks can also be regarded as counter-monuments and this contributes to the discourse on the visual and material culture of Lusophone Africa.
- Full Text:
- Date Issued: 2018
(Re) activated heritage:
- Authors: Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146321 , vital:38515 , ISBN 9780429624353
- Description: Book abstract. Securing Urban Heritage considers the impact of securitization on access to urban heritage sites. Demonstrating that symbolic spaces such as these have increasingly become the location of choice for the practice and performance of contemporary politics in the last decade, the book shows how this has led to the securitization of urban public space. Highlighting specific changes that have been made, such as the installation of closed-circuit television or the limitation of access to certain streets, plazas and buildings, the book analyses the impact of different approaches to securitization.
- Full Text:
- Date Issued: 2019
- Authors: Siegert, Nadine
- Date: 2019
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146321 , vital:38515 , ISBN 9780429624353
- Description: Book abstract. Securing Urban Heritage considers the impact of securitization on access to urban heritage sites. Demonstrating that symbolic spaces such as these have increasingly become the location of choice for the practice and performance of contemporary politics in the last decade, the book shows how this has led to the securitization of urban public space. Highlighting specific changes that have been made, such as the installation of closed-circuit television or the limitation of access to certain streets, plazas and buildings, the book analyses the impact of different approaches to securitization.
- Full Text:
- Date Issued: 2019
Self, family and society in Nadine Gordimer's Burger's Daughter, Rachel Zadok's Gem Squash Tokoloshe, and Doris Lessings's The Grass is Singing
- Authors: O'Brien, Lauren Leigh
- Date: 2013 , 2013-09-08
- Subjects: Gordimer, Nadine. Burger's daughter -- Criticism and interpretation Zadok, Rachel. Gem Squash Tokoloshe -- Criticism and interpretation Lessing, Doris May, 1919-- The grass is singing -- Criticism and interpretation South African fiction (English) -- 20th century -- History and criticism South African fiction (English) -- 21st century -- History and criticism South Africa -- In literature South Africa -- Social life and customs Identification (Psychology) in literature
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2271 , http://hdl.handle.net/10962/d1006771
- Description: This dissertation examines Nadine Gordimer’s Burger’s Daughter, Rachel Zadok’s Gem Squash Tokoloshe, and Doris Lessing’s The Grass is Singing. It focuses on the development of each of the protagonists’ identities in three realms: the individual, the familial and the societal. Additionally, it is concerned with the specific socio-political contexts in which the novels are set. It employs psychoanalytic and historical materialist frameworks in order to engage with the disparate areas of identity with which it is concerned. The introduction establishes the analytical perspective of the dissertation and explores the network of theoretical frames on which the dissertation relies. Additionally, it contextualises each of the novels, within their historical contexts, as well as in relation to the theory. The first chapter examines Nadine Gordimer’s Burger’s Daughter. It focuses on the protagonist’s assertion of an identity independent of her father’s role as a political activist, and her eventual acceptance of the universal difficulty in negotiating a life which is both private and political. The second chapter, on Rachel Zadok’s Gem Squash Tokoloshe, examines the relationship between the protagonist’s traumatic experiences as a child and her inability to assert an identity as an adult. The similarities between the protagonist’s attempts to address her traumas and thereby create herself anew and South Africa’s employment of the Truth and Reconciliation Commission as a means to acknowledge and engage with its traumatic history is of import. The third chapter which deals with Doris Lessing’s The Grass is Singing traces the life of its protagonist, whose identifications remain childish as a result of having witnessed her parents’ difficult relationship. Her understanding of the world is informed by a rigid, binary understanding, which is ultimately disrupted by her relationship with a black employee. She is incapable of readjusting her frame of reference, however, and ultimately goes mad. I conclude that, while my focus has been on personal, familial and social identifications, the standard terms in which identity is examined, namely, race, class, and gender, are present in each of the three tiers of identity with which I have been concerned.
- Full Text:
- Date Issued: 2013
- Authors: O'Brien, Lauren Leigh
- Date: 2013 , 2013-09-08
- Subjects: Gordimer, Nadine. Burger's daughter -- Criticism and interpretation Zadok, Rachel. Gem Squash Tokoloshe -- Criticism and interpretation Lessing, Doris May, 1919-- The grass is singing -- Criticism and interpretation South African fiction (English) -- 20th century -- History and criticism South African fiction (English) -- 21st century -- History and criticism South Africa -- In literature South Africa -- Social life and customs Identification (Psychology) in literature
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2271 , http://hdl.handle.net/10962/d1006771
- Description: This dissertation examines Nadine Gordimer’s Burger’s Daughter, Rachel Zadok’s Gem Squash Tokoloshe, and Doris Lessing’s The Grass is Singing. It focuses on the development of each of the protagonists’ identities in three realms: the individual, the familial and the societal. Additionally, it is concerned with the specific socio-political contexts in which the novels are set. It employs psychoanalytic and historical materialist frameworks in order to engage with the disparate areas of identity with which it is concerned. The introduction establishes the analytical perspective of the dissertation and explores the network of theoretical frames on which the dissertation relies. Additionally, it contextualises each of the novels, within their historical contexts, as well as in relation to the theory. The first chapter examines Nadine Gordimer’s Burger’s Daughter. It focuses on the protagonist’s assertion of an identity independent of her father’s role as a political activist, and her eventual acceptance of the universal difficulty in negotiating a life which is both private and political. The second chapter, on Rachel Zadok’s Gem Squash Tokoloshe, examines the relationship between the protagonist’s traumatic experiences as a child and her inability to assert an identity as an adult. The similarities between the protagonist’s attempts to address her traumas and thereby create herself anew and South Africa’s employment of the Truth and Reconciliation Commission as a means to acknowledge and engage with its traumatic history is of import. The third chapter which deals with Doris Lessing’s The Grass is Singing traces the life of its protagonist, whose identifications remain childish as a result of having witnessed her parents’ difficult relationship. Her understanding of the world is informed by a rigid, binary understanding, which is ultimately disrupted by her relationship with a black employee. She is incapable of readjusting her frame of reference, however, and ultimately goes mad. I conclude that, while my focus has been on personal, familial and social identifications, the standard terms in which identity is examined, namely, race, class, and gender, are present in each of the three tiers of identity with which I have been concerned.
- Full Text:
- Date Issued: 2013
An IPA study of the integration and work conditions of white teachers in historically black (township) schools
- Authors: Seane, Boitumelo Seville
- Date: 2017
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/4606 , vital:20698
- Description: This interpretative phenomenological analysis study focuses on analyzing the lived experiences of white teachers with regards to their integration and work conditions within the context of historically black (township) schools. It consists of four aims: a) what are the experiences of white teachers teaching in previously disadvantaged schools; b) what do they experience to be major obstacles towards the day to day process of teaching and learning; c) what are the positive highlights and accomplishments they experienced while teaching in previously disadvantaged schools; d) what aspects do they deem essential for an efficient culture of teaching and learning. Five semi-structured interviews were conducted with regards to the experiences of the teachers. The methodology chapter will cement the notion of the use of semi-structured interviews as a function within IPA. As a result, this should not be inadvertently be confused to be an aspect of thematic analysis which is distinctive from IPA. Four of the participants were females and one was male. The interview questions were centered on the main aims of the study. Data was analyzed using Interpretative Phenomenological Analysis (IPA). The results and interpretations of narratives revealed 6 super ordinate themes. They are: a) reinforces; b) enablers and desirable principles; c) social ills and other challenges; d) organization and administration factors; e) challenges with regards to teaching and learning and lastly, f) systemic and systematic issues. The following are the key findings that emerged during the interviews: Most of the teachers felt that they were well integrated in their schools. There was one exception. There were similarities with regards to adapting to working in previously disadvantaged schools. There were variations with the length or duration of service in the teaching profession from a minimum of less than a year, an average of 14 years and a maximum of 30 years. The teachers shared major challenges with regards to discipline among learners. Most of the teachers shared that their schools were variable with regards to lack of amenities and lack of finances. The dominant aspect was that some previously disadvantaged schools had many deprivations or encountered many difficult circumstances. Most of the teachers shared concerns that learning difficulties where being overlooked and there was lack of capacity to correctly intervene with regards to them. Various social ills emerged as having some level of impact on the lives of learners within their schools. Teachers reflected on the experiences about racism and racial intolerance; racial stereotypes and myths as well as no experiences of being marginalized. There were various experiences to diversity, culture and gender. Finally, various systemic and systematic issues that pose a challenge towards education within previously disadvantaged schools emerged. This study is based on the theoretical frameworks of assimilation, integration, multi-cultural education and anti-racist education.
- Full Text:
- Date Issued: 2017
- Authors: Seane, Boitumelo Seville
- Date: 2017
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/4606 , vital:20698
- Description: This interpretative phenomenological analysis study focuses on analyzing the lived experiences of white teachers with regards to their integration and work conditions within the context of historically black (township) schools. It consists of four aims: a) what are the experiences of white teachers teaching in previously disadvantaged schools; b) what do they experience to be major obstacles towards the day to day process of teaching and learning; c) what are the positive highlights and accomplishments they experienced while teaching in previously disadvantaged schools; d) what aspects do they deem essential for an efficient culture of teaching and learning. Five semi-structured interviews were conducted with regards to the experiences of the teachers. The methodology chapter will cement the notion of the use of semi-structured interviews as a function within IPA. As a result, this should not be inadvertently be confused to be an aspect of thematic analysis which is distinctive from IPA. Four of the participants were females and one was male. The interview questions were centered on the main aims of the study. Data was analyzed using Interpretative Phenomenological Analysis (IPA). The results and interpretations of narratives revealed 6 super ordinate themes. They are: a) reinforces; b) enablers and desirable principles; c) social ills and other challenges; d) organization and administration factors; e) challenges with regards to teaching and learning and lastly, f) systemic and systematic issues. The following are the key findings that emerged during the interviews: Most of the teachers felt that they were well integrated in their schools. There was one exception. There were similarities with regards to adapting to working in previously disadvantaged schools. There were variations with the length or duration of service in the teaching profession from a minimum of less than a year, an average of 14 years and a maximum of 30 years. The teachers shared major challenges with regards to discipline among learners. Most of the teachers shared that their schools were variable with regards to lack of amenities and lack of finances. The dominant aspect was that some previously disadvantaged schools had many deprivations or encountered many difficult circumstances. Most of the teachers shared concerns that learning difficulties where being overlooked and there was lack of capacity to correctly intervene with regards to them. Various social ills emerged as having some level of impact on the lives of learners within their schools. Teachers reflected on the experiences about racism and racial intolerance; racial stereotypes and myths as well as no experiences of being marginalized. There were various experiences to diversity, culture and gender. Finally, various systemic and systematic issues that pose a challenge towards education within previously disadvantaged schools emerged. This study is based on the theoretical frameworks of assimilation, integration, multi-cultural education and anti-racist education.
- Full Text:
- Date Issued: 2017
Fish utilization of surf-zones. Are they changing? A case study of the sheltered, warm-temperate King’s Beach
- Rishworth, Gavin M, Strydom, Nadine A, Potts, Warren M
- Authors: Rishworth, Gavin M , Strydom, Nadine A , Potts, Warren M
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124504 , vital:35619 , https://doi.org/10.1080/15627020.2014.11407616
- Description: Surf-zone fish communities and their shifts over time are generally poorly understood. The aim of this study was to compare the current surf-zone fish assemblage at King’s Beach, South Africa, to a similar study conducted three decades ago, before the collapse of many exploited shore fishes in the region. Beach seine nets (mesh sizes of 10 and 50 mm) were used to target juvenile and adult fishes bimonthly from February to August 2011 over the high tide around sunset. A total of 14 species were recorded in both the 30mand 100mseine nets. The catch in these seine nets was dominated by Pomadasys olivaceus and Liza richardsonii, and this was significantly different to three decades ago, when P. olivaceus, Sarpa salpa and Diplodus capensis dominated the catch. Important linefish species belonging to the Sparidae and Sciaenidae families were significantly smaller and less abundant in this study. Two sparids, S. salpa and Lithognathus mormyrus, which made a large contribution to the surf-zone catch three decades ago were absent during this study. Reasons for the significant shifts in the surf-zone fish community, including overexploitation of the linefish and potential habitat modification, are discussed.
- Full Text:
- Date Issued: 2015
- Authors: Rishworth, Gavin M , Strydom, Nadine A , Potts, Warren M
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124504 , vital:35619 , https://doi.org/10.1080/15627020.2014.11407616
- Description: Surf-zone fish communities and their shifts over time are generally poorly understood. The aim of this study was to compare the current surf-zone fish assemblage at King’s Beach, South Africa, to a similar study conducted three decades ago, before the collapse of many exploited shore fishes in the region. Beach seine nets (mesh sizes of 10 and 50 mm) were used to target juvenile and adult fishes bimonthly from February to August 2011 over the high tide around sunset. A total of 14 species were recorded in both the 30mand 100mseine nets. The catch in these seine nets was dominated by Pomadasys olivaceus and Liza richardsonii, and this was significantly different to three decades ago, when P. olivaceus, Sarpa salpa and Diplodus capensis dominated the catch. Important linefish species belonging to the Sparidae and Sciaenidae families were significantly smaller and less abundant in this study. Two sparids, S. salpa and Lithognathus mormyrus, which made a large contribution to the surf-zone catch three decades ago were absent during this study. Reasons for the significant shifts in the surf-zone fish community, including overexploitation of the linefish and potential habitat modification, are discussed.
- Full Text:
- Date Issued: 2015
Rhodos, Vol. 4, No. 7
- Date: 1992-05-14
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14840 , http://hdl.handle.net/10962/d1019079
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1992-05-14
- Date: 1992-05-14
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14840 , http://hdl.handle.net/10962/d1019079
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1992-05-14
Rhodos, Vol. 4, No. 12
- Date: 1992-07-30
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14845 , http://hdl.handle.net/10962/d1019084
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1992-07-30
- Date: 1992-07-30
- Subjects: Rhodes University -- Rhodos , Grahamstown -- Newspapers
- Language: English
- Type: Text
- Identifier: vital:14845 , http://hdl.handle.net/10962/d1019084
- Description: The Rhodos newsletter carries news and information about events, awards, projects and developments both on and off campus. Ten editions of Rhodos are printed throughout the academic year for distribution among staff members of the University
- Full Text:
- Date Issued: 1992-07-30