Mercaptopyridine-substituted indium, zinc, and metal-free phthalocyanines: nonlinear optical studies in solution and on polymer matrices
- Bankole, Owolabi M, Nyokong, Tebello
- Authors: Bankole, Owolabi M , Nyokong, Tebello
- Date: 2015
- Language: English
- Type: Article
- Identifier: vital:7278 , http://hdl.handle.net/10962/d1020313
- Description: In this article, the nonlinear optical characterizations and optical limiting properties of metal-free (2), zinc (3), and indium (4) tetra 4-(2-mercaptopyridine) phthalocyanines are discussed. Nonlinear optical properties of the samples were evaluated using Z-scan at 532 nm and 10 ns pulse in CHCl3, and doped on poly(bisphenol A carbonate) (PBC) thin films. Thin films for 2, 3, and 4 are represented as 2-PBC, 3-PBC, and 4-PBC, respectively. We observed two-photon absorption (2PA) and strong reverse saturable absorption as the dominant mechanisms at nanosecond laser excitation in solution and thin films. By virtue of the magnitude of absorption coefficients and other nonlinear optical parameters estimated in this work, sample 4 was found to exhibit strongest nonlinear optical properties followed by 3, while 2 is the weakest nonlinear absorber of the studied samples. Large third-order susceptibility (1.46 × 10−9 esu and 7.74 × 10−10 esu) and hyperpolarizability (2.13 × 10−28 and 8.37 × 10−29 esu) were estimated for 4-PBC and 3-PBC, respectively. Our studies show that these molecules are suitable candidates for practical passive optical limiters. , Original publication is available at http://dx.doi.org/10.1080/00958972.2015.1077237
- Full Text: false
- Date Issued: 2015
- Authors: Bankole, Owolabi M , Nyokong, Tebello
- Date: 2015
- Language: English
- Type: Article
- Identifier: vital:7278 , http://hdl.handle.net/10962/d1020313
- Description: In this article, the nonlinear optical characterizations and optical limiting properties of metal-free (2), zinc (3), and indium (4) tetra 4-(2-mercaptopyridine) phthalocyanines are discussed. Nonlinear optical properties of the samples were evaluated using Z-scan at 532 nm and 10 ns pulse in CHCl3, and doped on poly(bisphenol A carbonate) (PBC) thin films. Thin films for 2, 3, and 4 are represented as 2-PBC, 3-PBC, and 4-PBC, respectively. We observed two-photon absorption (2PA) and strong reverse saturable absorption as the dominant mechanisms at nanosecond laser excitation in solution and thin films. By virtue of the magnitude of absorption coefficients and other nonlinear optical parameters estimated in this work, sample 4 was found to exhibit strongest nonlinear optical properties followed by 3, while 2 is the weakest nonlinear absorber of the studied samples. Large third-order susceptibility (1.46 × 10−9 esu and 7.74 × 10−10 esu) and hyperpolarizability (2.13 × 10−28 and 8.37 × 10−29 esu) were estimated for 4-PBC and 3-PBC, respectively. Our studies show that these molecules are suitable candidates for practical passive optical limiters. , Original publication is available at http://dx.doi.org/10.1080/00958972.2015.1077237
- Full Text: false
- Date Issued: 2015
Public foetal images and the regulation of middle-class pregnancy in the online media : a view from South Africa
- Macleod, Catriona I, Howell, Simon
- Authors: Macleod, Catriona I , Howell, Simon
- Date: 2015
- Language: English
- Type: Article
- Identifier: vital:6307 , http://hdl.handle.net/10962/d1018803 , http://www.tandfonline.com/doi/full/10.1080/13691058.2015.1046138
- Description: Ultrasonography images and their derivatives have been taken up in a range of ‘public’ spaces, including medical textbooks, the media, anti-abortion material, advertising, the Internet and public health facilities. Feminists have critiqued the personification of the foetus, the bifurcation of the woman’s body and the reduction of the pregnant woman to a disembodied womb. What has received less attention is how these images frequently intersect with race, class, gender and heteronormativity in the creation of idealised and normative understandings of pregnancy. This paper focuses on the discursive positioning of pregnant women as ‘mothers’ and foetuses as ‘babies’ in online media targeted at a South African audience, where race and class continue to intersect in complex ways. We show how the ontologically specific understandings of ‘mummies’ and ‘babies’ emerge through the use of foetal images to construct specific understandings of the ‘ideal’ pregnancy. In the process, pregnant women are made responsible for ensuring that their pregnancy conforms to these ideals, which includes the purchasing of the various goods advertised by the websites. Not only does this point to a commodification of pregnancy, but also serves to reinforce a cultural understanding of White, middle-class pregnancy as constituting the normative ‘correct’ form of pregnancy. , Full text access on publisher website: http://www.tandfonline.com/doi/full/10.1080/13691058.2015.1046138
- Full Text: false
- Date Issued: 2015
- Authors: Macleod, Catriona I , Howell, Simon
- Date: 2015
- Language: English
- Type: Article
- Identifier: vital:6307 , http://hdl.handle.net/10962/d1018803 , http://www.tandfonline.com/doi/full/10.1080/13691058.2015.1046138
- Description: Ultrasonography images and their derivatives have been taken up in a range of ‘public’ spaces, including medical textbooks, the media, anti-abortion material, advertising, the Internet and public health facilities. Feminists have critiqued the personification of the foetus, the bifurcation of the woman’s body and the reduction of the pregnant woman to a disembodied womb. What has received less attention is how these images frequently intersect with race, class, gender and heteronormativity in the creation of idealised and normative understandings of pregnancy. This paper focuses on the discursive positioning of pregnant women as ‘mothers’ and foetuses as ‘babies’ in online media targeted at a South African audience, where race and class continue to intersect in complex ways. We show how the ontologically specific understandings of ‘mummies’ and ‘babies’ emerge through the use of foetal images to construct specific understandings of the ‘ideal’ pregnancy. In the process, pregnant women are made responsible for ensuring that their pregnancy conforms to these ideals, which includes the purchasing of the various goods advertised by the websites. Not only does this point to a commodification of pregnancy, but also serves to reinforce a cultural understanding of White, middle-class pregnancy as constituting the normative ‘correct’ form of pregnancy. , Full text access on publisher website: http://www.tandfonline.com/doi/full/10.1080/13691058.2015.1046138
- Full Text: false
- Date Issued: 2015
The development of Palladium(II)-specific amine-functionalized silica-based microparticles : adsorption and column separation studies
- Fayemi, Omolola E, Ogunlaja, Adeniyi S, Antunes, Edith M, Nyokong, Tebello, Tshentu, Zenixole R
- Authors: Fayemi, Omolola E , Ogunlaja, Adeniyi S , Antunes, Edith M , Nyokong, Tebello , Tshentu, Zenixole R
- Date: 2015
- Language: English
- Type: Article
- Identifier: vital:7270 , http://hdl.handle.net/10962/d1020285
- Description: The adsorption and separation of platinum(IV) and palladium(II) chlorido species ([PtCl6]2− and [PdCl4]2−) on silica-based microparticles functionalized with ammonium centers based on ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetriamine (TETA) and tris-(2-aminoethyl)amine (TAEA) were investigated. The functionalized sorbent materials were characterized using SEM, XPS, BET, and FTIR. The sorbents were used in the batch and column study for adsorption and selective separation of [PtCl62− and PdCl4]2−. The adsorption model for both [PtCl6]2− and [PdCl4]2− on the different sorbent materials fitted the Freundlich isotherm with R2 values > 0.99. The S-TETA sorbent material was palladium(II) specific. Pd(II) loaded on the silica column was recovered using 3% m/v thiourea solution as the eluting agent. Separation of platinum and palladium was achieved by selective stripping of [PtCl6]2− with 0.5 M of NaClO4 in 1.0 M HCl while Pd(II) was eluted with 0.5 M thiourea in 1.0 M HCl. The separation of palladium (Pd) from a mixture containing platinum (Pt), iridium (Ir), and rhodium (Rh) was successful on silica functionalized with triethylenetriamine (TETA) showing specificity for palladium(II) and a loading capacity of 0.27 mg/g. S-TETA showed potential for use in the recovery of palladium from platinum group metals such as from solutions of worn out automobile emission control catalytic convertors and other secondary sources. , Original publication is available at http://dx.doi.org/10.1080/01496395.2014.978017
- Full Text: false
- Date Issued: 2015
- Authors: Fayemi, Omolola E , Ogunlaja, Adeniyi S , Antunes, Edith M , Nyokong, Tebello , Tshentu, Zenixole R
- Date: 2015
- Language: English
- Type: Article
- Identifier: vital:7270 , http://hdl.handle.net/10962/d1020285
- Description: The adsorption and separation of platinum(IV) and palladium(II) chlorido species ([PtCl6]2− and [PdCl4]2−) on silica-based microparticles functionalized with ammonium centers based on ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetriamine (TETA) and tris-(2-aminoethyl)amine (TAEA) were investigated. The functionalized sorbent materials were characterized using SEM, XPS, BET, and FTIR. The sorbents were used in the batch and column study for adsorption and selective separation of [PtCl62− and PdCl4]2−. The adsorption model for both [PtCl6]2− and [PdCl4]2− on the different sorbent materials fitted the Freundlich isotherm with R2 values > 0.99. The S-TETA sorbent material was palladium(II) specific. Pd(II) loaded on the silica column was recovered using 3% m/v thiourea solution as the eluting agent. Separation of platinum and palladium was achieved by selective stripping of [PtCl6]2− with 0.5 M of NaClO4 in 1.0 M HCl while Pd(II) was eluted with 0.5 M thiourea in 1.0 M HCl. The separation of palladium (Pd) from a mixture containing platinum (Pt), iridium (Ir), and rhodium (Rh) was successful on silica functionalized with triethylenetriamine (TETA) showing specificity for palladium(II) and a loading capacity of 0.27 mg/g. S-TETA showed potential for use in the recovery of palladium from platinum group metals such as from solutions of worn out automobile emission control catalytic convertors and other secondary sources. , Original publication is available at http://dx.doi.org/10.1080/01496395.2014.978017
- Full Text: false
- Date Issued: 2015
The Development of Palladium(II)-Specific Amine-Functionalized Silica-Based Microparticles: Adsorption and Column Separation Studies
- Fayemi, Omolola E, Ogunlaja, Adeniyi S, Antunes, Edith M, Nyokong, Tebello, Tshentu, Zenixole R
- Authors: Fayemi, Omolola E , Ogunlaja, Adeniyi S , Antunes, Edith M , Nyokong, Tebello , Tshentu, Zenixole R
- Date: 2015
- Language: English
- Type: Article
- Identifier: vital:7269 , http://hdl.handle.net/10962/d1020278
- Description: The adsorption and separation of platinum(IV) and palladium(II) chlorido species ([PtCl6]2− and [PdCl4]2−) on silica-based microparticles functionalized with ammonium centers based on ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetriamine (TETA) and tris-(2-aminoethyl)amine (TAEA) were investigated. The functionalized sorbent materials were characterized using SEM, XPS, BET, and FTIR. The sorbents were used in the batch and column study for adsorption and selective separation of [PtCl62− and PdCl4]2−. The adsorption model for both [PtCl6]2− and [PdCl4]2− on the different sorbent materials fitted the Freundlich isotherm with R2 values > 0.99. The S-TETA sorbent material was palladium(II) specific. Pd(II) loaded on the silica column was recovered using 3% m/v thiourea solution as the eluting agent. Separation of platinum and palladium was achieved by selective stripping of [PtCl6]2− with 0.5 M of NaClO4 in 1.0 M HCl while Pd(II) was eluted with 0.5 M thiourea in 1.0 M HCl. The separation of palladium (Pd) from a mixture containing platinum (Pt), iridium (Ir), and rhodium (Rh) was successful on silica functionalized with triethylenetriamine (TETA) showing specificity for palladium(II) and a loading capacity of 0.27 mg/g. S-TETA showed potential for use in the recovery of palladium from platinum group metals such as from solutions of worn out automobile emission control catalytic convertors and other secondary sources. , Original publication is available at http://dx.doi.org/10.1080/01496395.2014.978017
- Full Text: false
- Date Issued: 2015
- Authors: Fayemi, Omolola E , Ogunlaja, Adeniyi S , Antunes, Edith M , Nyokong, Tebello , Tshentu, Zenixole R
- Date: 2015
- Language: English
- Type: Article
- Identifier: vital:7269 , http://hdl.handle.net/10962/d1020278
- Description: The adsorption and separation of platinum(IV) and palladium(II) chlorido species ([PtCl6]2− and [PdCl4]2−) on silica-based microparticles functionalized with ammonium centers based on ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetriamine (TETA) and tris-(2-aminoethyl)amine (TAEA) were investigated. The functionalized sorbent materials were characterized using SEM, XPS, BET, and FTIR. The sorbents were used in the batch and column study for adsorption and selective separation of [PtCl62− and PdCl4]2−. The adsorption model for both [PtCl6]2− and [PdCl4]2− on the different sorbent materials fitted the Freundlich isotherm with R2 values > 0.99. The S-TETA sorbent material was palladium(II) specific. Pd(II) loaded on the silica column was recovered using 3% m/v thiourea solution as the eluting agent. Separation of platinum and palladium was achieved by selective stripping of [PtCl6]2− with 0.5 M of NaClO4 in 1.0 M HCl while Pd(II) was eluted with 0.5 M thiourea in 1.0 M HCl. The separation of palladium (Pd) from a mixture containing platinum (Pt), iridium (Ir), and rhodium (Rh) was successful on silica functionalized with triethylenetriamine (TETA) showing specificity for palladium(II) and a loading capacity of 0.27 mg/g. S-TETA showed potential for use in the recovery of palladium from platinum group metals such as from solutions of worn out automobile emission control catalytic convertors and other secondary sources. , Original publication is available at http://dx.doi.org/10.1080/01496395.2014.978017
- Full Text: false
- Date Issued: 2015
Visible light transformation of Rhodamine 6G using tetracarbazole zinc phthalocyanine when embedded in electrospun fibers and in the presence of ZnO and Ag particles
- Khoza, Phindile, Nyokong, Tebello
- Authors: Khoza, Phindile , Nyokong, Tebello
- Date: 2015
- Language: English
- Type: Article
- Identifier: vital:7246 , http://hdl.handle.net/10962/d1020251
- Description: Herein, we report the photocatalytic transformation of Rhodamine 6G (Rh 6G) using tetracarbazole zinc phthalocyanine (TCbZnPc) when alone or when conjugated with ZnO macroparticles (ZnOMPs) and silver nanoparticles (AgNPs), represented as TCbZnPc–ZnOMPs and TCbZnPc–AgNPs, respectively. The photocatalysts were supported onto electrospun polystyrene fibers. The efficiency of TCbZnPc was improved by the presence of both ZnOMPs and AgNPs. HPLC equipped with UV–vis was used to study phototransformation products. The mechanism of transformation was via the N-de-ethylation of Rh 6G. , Original publication is available at http://dx.doi.org/10.1080/00958972.2015.1013944
- Full Text: false
- Date Issued: 2015
- Authors: Khoza, Phindile , Nyokong, Tebello
- Date: 2015
- Language: English
- Type: Article
- Identifier: vital:7246 , http://hdl.handle.net/10962/d1020251
- Description: Herein, we report the photocatalytic transformation of Rhodamine 6G (Rh 6G) using tetracarbazole zinc phthalocyanine (TCbZnPc) when alone or when conjugated with ZnO macroparticles (ZnOMPs) and silver nanoparticles (AgNPs), represented as TCbZnPc–ZnOMPs and TCbZnPc–AgNPs, respectively. The photocatalysts were supported onto electrospun polystyrene fibers. The efficiency of TCbZnPc was improved by the presence of both ZnOMPs and AgNPs. HPLC equipped with UV–vis was used to study phototransformation products. The mechanism of transformation was via the N-de-ethylation of Rh 6G. , Original publication is available at http://dx.doi.org/10.1080/00958972.2015.1013944
- Full Text: false
- Date Issued: 2015
Effects of pyrene on the photophysical and two-photon absorption-based nonlinear optical properties of indium(III) phthalocyanines
- Sanusi, Kayode, Nyokong, Tebello
- Authors: Sanusi, Kayode , Nyokong, Tebello
- Date: 2014
- Language: English
- Type: Article
- Identifier: vital:7314 , http://hdl.handle.net/10962/d1020540
- Description: Photophysical and two-photon-dependent nonlinear absorption properties of two chloroindium(III) phthalocyanines bearing pyrene units have been investigated. The tetra- (3) and the tri- (4) pyrene-substituted phthalocyanines exhibit strong triplet absorption with high triplet yields () of 0.79 and 0.83, respectively. The measured nonlinear optical data, such as the two photon absorption cross-sections, the third- and second-order nonlinearities were found to be comparable with those of literature, thus, making the compounds promising candidates for a broad range of nonlinear optical applications. , Original publication is available at http://dx.doi.org/10.1080/00958972.2014.959509
- Full Text: false
- Date Issued: 2014
- Authors: Sanusi, Kayode , Nyokong, Tebello
- Date: 2014
- Language: English
- Type: Article
- Identifier: vital:7314 , http://hdl.handle.net/10962/d1020540
- Description: Photophysical and two-photon-dependent nonlinear absorption properties of two chloroindium(III) phthalocyanines bearing pyrene units have been investigated. The tetra- (3) and the tri- (4) pyrene-substituted phthalocyanines exhibit strong triplet absorption with high triplet yields () of 0.79 and 0.83, respectively. The measured nonlinear optical data, such as the two photon absorption cross-sections, the third- and second-order nonlinearities were found to be comparable with those of literature, thus, making the compounds promising candidates for a broad range of nonlinear optical applications. , Original publication is available at http://dx.doi.org/10.1080/00958972.2014.959509
- Full Text: false
- Date Issued: 2014
Men and talk about legal abortion in South Africa : equality, support and rights discourses undermining reproductive ‘choice’
- Macleod, Catriona I, Hansjee, Jateen
- Authors: Macleod, Catriona I , Hansjee, Jateen
- Date: 2013
- Language: English
- Type: Article
- Identifier: vital:6295 , http://hdl.handle.net/10962/d1014770 , http://www.tandfonline.com/doi/full/10.1080/13691058.2013.802815
- Description: Discursive constructions of abortion are embedded in the social and gendered power relations of a particular socio-historical space. As part of research on public discourses concerning abortion in South Africa where there has been a radical liberalisation of abortion legislation, we collected data from male group discussions about a vignette concerning abortion, and newspaper articles written by men about abortion. Our analysis revealed how discourses of equality, support and rights may be used by men to subtly undermine women's reproductive right to ‘choose’ an abortion. Within an Equal Partnership discourse, abortion, paired with the assumption of foetal personhood, was equated with violating an equal heterosexual partnership and a man's patriarchal duty to protect a child. A New Man discourse, which positions men as supportive of women, was paired with the assumption of men as rational and women as irrational in decision-making, to allow for the possibility of men dissuading women from terminating a pregnancy. A Rights discourse was invoked to suggest that abortion violates men's paternal rights.
- Full Text:
- Date Issued: 2013
- Authors: Macleod, Catriona I , Hansjee, Jateen
- Date: 2013
- Language: English
- Type: Article
- Identifier: vital:6295 , http://hdl.handle.net/10962/d1014770 , http://www.tandfonline.com/doi/full/10.1080/13691058.2013.802815
- Description: Discursive constructions of abortion are embedded in the social and gendered power relations of a particular socio-historical space. As part of research on public discourses concerning abortion in South Africa where there has been a radical liberalisation of abortion legislation, we collected data from male group discussions about a vignette concerning abortion, and newspaper articles written by men about abortion. Our analysis revealed how discourses of equality, support and rights may be used by men to subtly undermine women's reproductive right to ‘choose’ an abortion. Within an Equal Partnership discourse, abortion, paired with the assumption of foetal personhood, was equated with violating an equal heterosexual partnership and a man's patriarchal duty to protect a child. A New Man discourse, which positions men as supportive of women, was paired with the assumption of men as rational and women as irrational in decision-making, to allow for the possibility of men dissuading women from terminating a pregnancy. A Rights discourse was invoked to suggest that abortion violates men's paternal rights.
- Full Text:
- Date Issued: 2013
Culture as a discursive resource opposing legal abortion
- Macleod, Catriona I, Sigcau, Nomakhosi, Luwaca, Pumeza
- Authors: Macleod, Catriona I , Sigcau, Nomakhosi , Luwaca, Pumeza
- Date: 2011
- Language: English
- Type: Article
- Identifier: vital:6293 , http://hdl.handle.net/10962/d1014721 , http://dx.doi.org/10.1080/09581596.2010.492211
- Description: The notion of ‘culture’ features in the abortion literature to explicate, first, contestation of the meaning of abortion (as in the ‘culture wars’ about abortion), second, the normalisation of abortion in certain countries (as in ‘abortion culture’), third, the response of women to abortion within a particular social milieu and fourth, cross-cultural variability in attitudes towards and experiences of abortion. What is missing is an exploration of how ‘culture’ may be deployed as a discursive resource to oppose legal abortion. In this article, we report on a study conducted in a rural area of South Africa. We conducted focus group discussions utilising hypothetical vignettes to stimulate talk. Although, inconsistencies were evident in participants’ talk, in the context of cultural discussions, abortion was constructed as killing and inevitably destructive of cultural values and traditions. Abortion was equated with colonialist interventions and as something that should be opposed in the preservation of culture. Furthermore, cultural opposition to abortion was rooted in fears around the breakdown of gendered and generational power relations. Examples of how culture may be used in everyday interactions to induce shame and negative experiences are also discussed.
- Full Text:
- Date Issued: 2011
- Authors: Macleod, Catriona I , Sigcau, Nomakhosi , Luwaca, Pumeza
- Date: 2011
- Language: English
- Type: Article
- Identifier: vital:6293 , http://hdl.handle.net/10962/d1014721 , http://dx.doi.org/10.1080/09581596.2010.492211
- Description: The notion of ‘culture’ features in the abortion literature to explicate, first, contestation of the meaning of abortion (as in the ‘culture wars’ about abortion), second, the normalisation of abortion in certain countries (as in ‘abortion culture’), third, the response of women to abortion within a particular social milieu and fourth, cross-cultural variability in attitudes towards and experiences of abortion. What is missing is an exploration of how ‘culture’ may be deployed as a discursive resource to oppose legal abortion. In this article, we report on a study conducted in a rural area of South Africa. We conducted focus group discussions utilising hypothetical vignettes to stimulate talk. Although, inconsistencies were evident in participants’ talk, in the context of cultural discussions, abortion was constructed as killing and inevitably destructive of cultural values and traditions. Abortion was equated with colonialist interventions and as something that should be opposed in the preservation of culture. Furthermore, cultural opposition to abortion was rooted in fears around the breakdown of gendered and generational power relations. Examples of how culture may be used in everyday interactions to induce shame and negative experiences are also discussed.
- Full Text:
- Date Issued: 2011
Why we should avoid the use of the term “Post-Abortion Syndrome” : commentary on Boulind and Edwards (2008)
- Authors: Macleod, Catriona I
- Date: 2009
- Language: English
- Type: Article
- Identifier: vital:6277 , http://hdl.handle.net/10962/d1008277
- Description: Boulind and Edwards (2008) present a case study of Grace, a women suffering, in their words, from post-abortion syndrome (PAS). In this commentary I argue that while Boulind and Edwards’ (2008) report is useful in terms of documenting the therapeutic processes engaged in, they would have been better served in not hanging the distress experienced by Grace on the diagnostic category of post-abortion syndrome. Reasons for this are that: PAS is not a recognised category of diagnosis, despite having been initially proposed in 1981; applying a PTSD framework to abortion is questionable; PAS focuses attention on the abortion itself in isolation from the fact that abortion occurs in the context of severely problematic pregnancies and other important socio-cultural stressors; PAS, in the very manner in which it is formulated, invokes to a very complex politics of the foetus. Boulind and Edwards (2008) are careful in their documentation of the complexities of the case, and thus their use of PAS is unfortunate.
- Full Text:
- Date Issued: 2009
- Authors: Macleod, Catriona I
- Date: 2009
- Language: English
- Type: Article
- Identifier: vital:6277 , http://hdl.handle.net/10962/d1008277
- Description: Boulind and Edwards (2008) present a case study of Grace, a women suffering, in their words, from post-abortion syndrome (PAS). In this commentary I argue that while Boulind and Edwards’ (2008) report is useful in terms of documenting the therapeutic processes engaged in, they would have been better served in not hanging the distress experienced by Grace on the diagnostic category of post-abortion syndrome. Reasons for this are that: PAS is not a recognised category of diagnosis, despite having been initially proposed in 1981; applying a PTSD framework to abortion is questionable; PAS focuses attention on the abortion itself in isolation from the fact that abortion occurs in the context of severely problematic pregnancies and other important socio-cultural stressors; PAS, in the very manner in which it is formulated, invokes to a very complex politics of the foetus. Boulind and Edwards (2008) are careful in their documentation of the complexities of the case, and thus their use of PAS is unfortunate.
- Full Text:
- Date Issued: 2009
Waging war : discourses of HIV/AIDS in South African media
- Connelly, Mark, Macleod, Catriona I
- Authors: Connelly, Mark , Macleod, Catriona I
- Date: 2003
- Language: English
- Type: Article
- Identifier: vital:6255 , http://hdl.handle.net/10962/d1007873
- Description: This paper explores a discourse of war against HIV/AIDS evident in the Daily Dispatch, a South African daily newspaper, from 1985 to 2000, and discusses the implications of this in terms of the way in which HIV/AIDS is constructed. The discursive framework of the war depends, fundamentally, on the personification of HIV/AIDS, in which agency is accorded to the virus, and which allows for its construction as the enemy. The war discourse positions different groups of subjects (the diseased body, the commanders, the experts, the ordinary citizens) in relations of power. The diseased body, which is the point of transmission, the polluter or infector, is cast as the 'Other', as a dark and threatening force. This takes on racialised overtones. The government takes on the role of commander, directing the war through policy and intervention strategies. Opposition to government is couched in a struggle discourse that dove-tails with the overall framework of war. Medical and scientific understandings pre-dominate in the investigative practices and expert commentary on the war, with alternative voices (such as those of people living with HIV/AIDS) being silenced. The ordinary citizen is incited to take on prevention and caring roles with a strong gendered overlay.
- Full Text:
- Date Issued: 2003
- Authors: Connelly, Mark , Macleod, Catriona I
- Date: 2003
- Language: English
- Type: Article
- Identifier: vital:6255 , http://hdl.handle.net/10962/d1007873
- Description: This paper explores a discourse of war against HIV/AIDS evident in the Daily Dispatch, a South African daily newspaper, from 1985 to 2000, and discusses the implications of this in terms of the way in which HIV/AIDS is constructed. The discursive framework of the war depends, fundamentally, on the personification of HIV/AIDS, in which agency is accorded to the virus, and which allows for its construction as the enemy. The war discourse positions different groups of subjects (the diseased body, the commanders, the experts, the ordinary citizens) in relations of power. The diseased body, which is the point of transmission, the polluter or infector, is cast as the 'Other', as a dark and threatening force. This takes on racialised overtones. The government takes on the role of commander, directing the war through policy and intervention strategies. Opposition to government is couched in a struggle discourse that dove-tails with the overall framework of war. Medical and scientific understandings pre-dominate in the investigative practices and expert commentary on the war, with alternative voices (such as those of people living with HIV/AIDS) being silenced. The ordinary citizen is incited to take on prevention and caring roles with a strong gendered overlay.
- Full Text:
- Date Issued: 2003
Racializing teenage pregnancy : ‘culture’ and ‘tradition’ in the South African scientific literature
- Macleod, Catriona I, Durrheim, Kevin
- Authors: Macleod, Catriona I , Durrheim, Kevin
- Date: 2002
- Language: English
- Type: Article
- Identifier: vital:6260 , http://hdl.handle.net/10962/d1007878
- Description: The signifiers, ‘race’, ‘culture’ or ‘ethnicity’ are utilized in the teenage pregnancy literature (1) to highlight ‘differences’ in adolescent sexual and reproductive behaviour and (2) as explanatory tools. When ‘white’ teenagers are the focus of research, psychological explanations are usually invoked, while for ‘black’ teenagers, explanations are socio-cultural in nature. In this paper, we explore how, through a process of racialization, the psycho-medical literature on teenage pregnancy in South Africa contributes to the entrenchment of ‘race’, ‘culture’ and ‘ethnicity’ as fixed, ‘natural’ signifiers. We utilize Derrida’s notion of différance, together with Phoenix and Woollett’s adaptation – ‘normalized absence/pathologized presence’ – to indicate how ‘black’ people are cast as the Other, the pathologized presence which relies on the normalized absent trace, ‘whiteness’, for definition. We analyse how the notions of ‘tradition’ and ‘culture’ are deployed to sanitize or disguise the underlying racializing project. ‘Black’ is exoticized and rendered strange and thus open to scrutiny, monitoring and intervention. ‘Culture’ and ‘tradition’ appeal to the myth of origin, thus providing pseudo-historical explanations which essentialize and naturalize racialized collectivities. , Rhodes University
- Full Text:
- Date Issued: 2002
Racializing teenage pregnancy : ‘culture’ and ‘tradition’ in the South African scientific literature
- Authors: Macleod, Catriona I , Durrheim, Kevin
- Date: 2002
- Language: English
- Type: Article
- Identifier: vital:6260 , http://hdl.handle.net/10962/d1007878
- Description: The signifiers, ‘race’, ‘culture’ or ‘ethnicity’ are utilized in the teenage pregnancy literature (1) to highlight ‘differences’ in adolescent sexual and reproductive behaviour and (2) as explanatory tools. When ‘white’ teenagers are the focus of research, psychological explanations are usually invoked, while for ‘black’ teenagers, explanations are socio-cultural in nature. In this paper, we explore how, through a process of racialization, the psycho-medical literature on teenage pregnancy in South Africa contributes to the entrenchment of ‘race’, ‘culture’ and ‘ethnicity’ as fixed, ‘natural’ signifiers. We utilize Derrida’s notion of différance, together with Phoenix and Woollett’s adaptation – ‘normalized absence/pathologized presence’ – to indicate how ‘black’ people are cast as the Other, the pathologized presence which relies on the normalized absent trace, ‘whiteness’, for definition. We analyse how the notions of ‘tradition’ and ‘culture’ are deployed to sanitize or disguise the underlying racializing project. ‘Black’ is exoticized and rendered strange and thus open to scrutiny, monitoring and intervention. ‘Culture’ and ‘tradition’ appeal to the myth of origin, thus providing pseudo-historical explanations which essentialize and naturalize racialized collectivities. , Rhodes University
- Full Text:
- Date Issued: 2002
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