The Educational Journal
- Date: 1984-11
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/37093 , vital:34102 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1984-11
- Date: 1984-11
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/37093 , vital:34102 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1984-11
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 Educational Journal
- Date: 1985-12
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/36232 , vital:33909 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1985-12
- Date: 1985-12
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/36232 , vital:33909 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1985-12
The geology and geochemistry of the Palaeoproterozoic Makganyene diamictite
- Polteau, S, Moore, John M, Tsikos, Harilaos
- Authors: Polteau, S , Moore, John M , Tsikos, Harilaos
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6740 , http://hdl.handle.net/10962/d1007556
- Description: The Palaeoproterozoic Earth experienced a global glacial event at 2400 Ma that occurred during the transitional period from anoxic to aerobic conditions in the atmosphere and oceans. The Transvaal Supergroup in the Griqualand West Basin, South Africa, hosts glacial deposits and associated major iron and manganese deposits that are apparently related to these global changes. The focus of this study is to assess the stratigraphy and geochemistry of the glaciogenic Makganyene Formation, in order to constrain its palaeoenvironmental settings. The Makganyene Formation forms the base of the Postmasburg Group and has been regarded as resting on an erosive regional unconformity throughout the Northern Cape Province. Systematic regional field observations and regional mapping carried out during this study demonstrate that this stratigraphic relationship is not universal. The Makganyene Formation is, in fact, conformable with underlying formations of the Koegas Subgroup in the deep southern Prieska basin and rests on an unconformity only on the shallow Ghaap platform to the north-east. The Makganyene Formation displays lateral facies changes that reflect the palaeogeography of the study area, and the advance and retreat of ice sheets/shelves. Geochemical investigations of glacial strata of the Makganyene Formation demonstrate that underlying banded iron formations of the Transvaal Supergroup acted as the main clastic source for the diamictite detritus. Geographic variations in bulk composition of the diamictites correlate well with field observations, and show that sorting processes were controlled largely by the morphology of the palaeobasin. Carbon isotope results emphasize the transitional nature of the Makganyene Formation in terms of the environmental conditions that resulted in widespread global glaciation in the Palaeoproterozoic. On the basis of the above geological evidence, it is proposed that the Transvaal Supergroup in the Northern Cape Province represents a continuous depositional event that lasted approximately 250 Ma and hence provides a unique opportunity for assessing the transitional changes experienced by the Palaeoproterozoic Earth.
- Full Text:
- Date Issued: 2006
- Authors: Polteau, S , Moore, John M , Tsikos, Harilaos
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6740 , http://hdl.handle.net/10962/d1007556
- Description: The Palaeoproterozoic Earth experienced a global glacial event at 2400 Ma that occurred during the transitional period from anoxic to aerobic conditions in the atmosphere and oceans. The Transvaal Supergroup in the Griqualand West Basin, South Africa, hosts glacial deposits and associated major iron and manganese deposits that are apparently related to these global changes. The focus of this study is to assess the stratigraphy and geochemistry of the glaciogenic Makganyene Formation, in order to constrain its palaeoenvironmental settings. The Makganyene Formation forms the base of the Postmasburg Group and has been regarded as resting on an erosive regional unconformity throughout the Northern Cape Province. Systematic regional field observations and regional mapping carried out during this study demonstrate that this stratigraphic relationship is not universal. The Makganyene Formation is, in fact, conformable with underlying formations of the Koegas Subgroup in the deep southern Prieska basin and rests on an unconformity only on the shallow Ghaap platform to the north-east. The Makganyene Formation displays lateral facies changes that reflect the palaeogeography of the study area, and the advance and retreat of ice sheets/shelves. Geochemical investigations of glacial strata of the Makganyene Formation demonstrate that underlying banded iron formations of the Transvaal Supergroup acted as the main clastic source for the diamictite detritus. Geographic variations in bulk composition of the diamictites correlate well with field observations, and show that sorting processes were controlled largely by the morphology of the palaeobasin. Carbon isotope results emphasize the transitional nature of the Makganyene Formation in terms of the environmental conditions that resulted in widespread global glaciation in the Palaeoproterozoic. On the basis of the above geological evidence, it is proposed that the Transvaal Supergroup in the Northern Cape Province represents a continuous depositional event that lasted approximately 250 Ma and hence provides a unique opportunity for assessing the transitional changes experienced by the Palaeoproterozoic Earth.
- Full Text:
- Date Issued: 2006
New Unity Movement Bulletin
- Date: 1997-08
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10948/31676 , vital:31708 , Bulk File 7
- Description: The Bulletin was the official newsletter of the New Unity Movement. It was published about twice a year and contained articles reflecting the organisation's views on resistance to the Apartheid government.
- Full Text: false
- Date Issued: 1997-08
- Date: 1997-08
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10948/31676 , vital:31708 , Bulk File 7
- Description: The Bulletin was the official newsletter of the New Unity Movement. It was published about twice a year and contained articles reflecting the organisation's views on resistance to the Apartheid government.
- Full Text: false
- Date Issued: 1997-08
Visible Wars and Invisible Women: interrogating women's roles during wartime in Goretti Kyomuhendo's Waiting: a novel of Uganda at war
- Authors: Spencer, Lynda G
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/138880 , vital:37682 , https://0-hdl.handle.net.wam.seals.ac.za/10520/EJC177790
- Description: Goretti Kyomuhendo's Waiting: A Novel of Uganda at War explores the atrocities that ordinary people experience during wartime by placing emphasis on the private suffering and humiliation inflicted on women in the domestic space of the home. This article argues that even if women do not actively feature on the battleground, they are still inadvertently drawn into the war, which has an adverse impact on their lives. Kyomuhendo draws on the experiences of different female characters to problematize the inherently ambiguous symbolic image of the mother, and shows that the violence performed on women's bodies is a result of the interplay between two hegemonic forces, patriarchal authority and state power.
- Full Text:
- Date Issued: 2015
- Authors: Spencer, Lynda G
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/138880 , vital:37682 , https://0-hdl.handle.net.wam.seals.ac.za/10520/EJC177790
- Description: Goretti Kyomuhendo's Waiting: A Novel of Uganda at War explores the atrocities that ordinary people experience during wartime by placing emphasis on the private suffering and humiliation inflicted on women in the domestic space of the home. This article argues that even if women do not actively feature on the battleground, they are still inadvertently drawn into the war, which has an adverse impact on their lives. Kyomuhendo draws on the experiences of different female characters to problematize the inherently ambiguous symbolic image of the mother, and shows that the violence performed on women's bodies is a result of the interplay between two hegemonic forces, patriarchal authority and state power.
- Full Text:
- Date Issued: 2015
The Educational Journal
- Date: 1982-11
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/38459 , vital:34817 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1982-11
- Date: 1982-11
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/38459 , vital:34817 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1982-11
New Unity Movement Bulletin
- Date: 1988-07
- Subjects: Government, Resistance to -- South Africa , South Africa -- Politics and government
- Language: English
- Type: text , journal
- Identifier: http://hdl.handle.net/10948/30822 , vital:31169 , Bulk File 7
- Description: The New Unity Movement Bulletin was the mouthpiece of the New Unity Movement during the period of apartheid.
- Full Text: false
- Date Issued: 1988-07
- Date: 1988-07
- Subjects: Government, Resistance to -- South Africa , South Africa -- Politics and government
- Language: English
- Type: text , journal
- Identifier: http://hdl.handle.net/10948/30822 , vital:31169 , Bulk File 7
- Description: The New Unity Movement Bulletin was the mouthpiece of the New Unity Movement during the period of apartheid.
- Full Text: false
- Date Issued: 1988-07
MARS: Motif Assessment and Ranking Suite for transcription factor binding motifs
- Kibet, Caleb K, Machanick, Philip
- Authors: Kibet, Caleb K , Machanick, Philip
- Date: 2016
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61155 , vital:27985 , http://dx.doi.org/10.1101/065615
- Description: We describe MARS (Motif Assessment and Ranking Suite), a web-based suite of tools used to evaluate and rank PWM-based motifs. The increased number of learned motif models that are spread across databases and in different PWM formats, leading to a choice dilemma among the users, is our motivation. This increase has been driven by the difficulty of modelling transcription factor binding sites and the advance in high-throughput sequencing technologies at a continually reducing cost. Therefore, several experimental techniques have been developed resulting in diverse motif-finding algorithms and databases. We collate a wide variety of available motifs into a benchmark database, including the corresponding experimental ChIP-seq and PBM data obtained from ENCODE and UniPROBE databases, respectively. The implemented tools include: a data-independent consistency-based motif assessment and ranking (CB-MAR), which is based on the idea that `correct motifs' are more similar to each other while incorrect motifs will differ from each other; and a scoring and classification-based algorithms, which rank binding models by their ability to discriminate sequences known to contain binding sites from those without. The CB-MAR and scoring techniques have a 0.86 and 0.73 median rank correlation using ChIP-seq and PBM respectively. Best motifs selected by CB-MAR achieve a mean AUC of 0.75, comparable to those ranked by held out data at 0.76 { this is based on ChIP-seq motif discovery using five algorithms on 110 transcription factors. We have demonstrated the benefit of this web server in motif choice and ranking, as well as in motif.
- Full Text:
- Date Issued: 2016
- Authors: Kibet, Caleb K , Machanick, Philip
- Date: 2016
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61155 , vital:27985 , http://dx.doi.org/10.1101/065615
- Description: We describe MARS (Motif Assessment and Ranking Suite), a web-based suite of tools used to evaluate and rank PWM-based motifs. The increased number of learned motif models that are spread across databases and in different PWM formats, leading to a choice dilemma among the users, is our motivation. This increase has been driven by the difficulty of modelling transcription factor binding sites and the advance in high-throughput sequencing technologies at a continually reducing cost. Therefore, several experimental techniques have been developed resulting in diverse motif-finding algorithms and databases. We collate a wide variety of available motifs into a benchmark database, including the corresponding experimental ChIP-seq and PBM data obtained from ENCODE and UniPROBE databases, respectively. The implemented tools include: a data-independent consistency-based motif assessment and ranking (CB-MAR), which is based on the idea that `correct motifs' are more similar to each other while incorrect motifs will differ from each other; and a scoring and classification-based algorithms, which rank binding models by their ability to discriminate sequences known to contain binding sites from those without. The CB-MAR and scoring techniques have a 0.86 and 0.73 median rank correlation using ChIP-seq and PBM respectively. Best motifs selected by CB-MAR achieve a mean AUC of 0.75, comparable to those ranked by held out data at 0.76 { this is based on ChIP-seq motif discovery using five algorithms on 110 transcription factors. We have demonstrated the benefit of this web server in motif choice and ranking, as well as in motif.
- Full Text:
- Date Issued: 2016
Spatio-temporal patterns in maturation of the chokka squid (Loligo vulgaris reynaudii) off the coast of South Africa
- Olyott, L J H, Sauer, Warwick H H, Booth, Anthony J
- Authors: Olyott, L J H , Sauer, Warwick H H , Booth, Anthony J
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6763 , http://hdl.handle.net/10962/d1007930
- Description: Knowledge of the temporal and spatial characteristics of chokka squid (Loligo vulgaris reynaudii) biology in South African waters is limited, so the possibility of there being a geographically fragmented stock was examined by investigating the distribution of maturity patterns for the species, covering all known spawning areas and using both historical and recent data. Gonadosomatic indices (GSI) varied between year-round consistency and apparent seasonal peaks in both summer and winter; there was no clear spatial pattern. Monthly percentage maturity provided further evidence for two peak reproductive periods each year, although mature squid were present throughout. Sex ratios demonstrated great variability between different areas and life history stages. Male-biased sex ratios were only apparent on the inshore spawning grounds and ranged between 1.118:1 and 4.267:1. Size at sexual maturity was also seasonal, squid maturing smaller in winter/spring than in summer/autumn. Also, squid in the east matured smaller than squid in the west. Although the results from the present study do not provide conclusive evidence of distinct geographic populations, squid likely spawn over a significantly larger area of the Agulhas Bank than previously estimated, and squid on the west coast of South Africa may return to spawn on the western portion of the Agulhas Bank. It remains likely, however, that the east and west coast populations are a single stock and that migration of juveniles to the west coast and their subsequent return as sub-adults is an integral but non-essential and variable part of the life history.
- Full Text:
- Date Issued: 2006
- Authors: Olyott, L J H , Sauer, Warwick H H , Booth, Anthony J
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6763 , http://hdl.handle.net/10962/d1007930
- Description: Knowledge of the temporal and spatial characteristics of chokka squid (Loligo vulgaris reynaudii) biology in South African waters is limited, so the possibility of there being a geographically fragmented stock was examined by investigating the distribution of maturity patterns for the species, covering all known spawning areas and using both historical and recent data. Gonadosomatic indices (GSI) varied between year-round consistency and apparent seasonal peaks in both summer and winter; there was no clear spatial pattern. Monthly percentage maturity provided further evidence for two peak reproductive periods each year, although mature squid were present throughout. Sex ratios demonstrated great variability between different areas and life history stages. Male-biased sex ratios were only apparent on the inshore spawning grounds and ranged between 1.118:1 and 4.267:1. Size at sexual maturity was also seasonal, squid maturing smaller in winter/spring than in summer/autumn. Also, squid in the east matured smaller than squid in the west. Although the results from the present study do not provide conclusive evidence of distinct geographic populations, squid likely spawn over a significantly larger area of the Agulhas Bank than previously estimated, and squid on the west coast of South Africa may return to spawn on the western portion of the Agulhas Bank. It remains likely, however, that the east and west coast populations are a single stock and that migration of juveniles to the west coast and their subsequent return as sub-adults is an integral but non-essential and variable part of the life history.
- Full Text:
- Date Issued: 2006
MAWU and the industrial council
- Authors: MAWU, FOSATU
- Date: Feb 1993
- Subjects: FOSATU, MAWU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/110364 , vital:33272
- Description: This is a booklet to explain why M A W U has decided to join the Industrial Council for the Iron, Steel Engineering and Metallurgical Industry. In South Africa at present there are 104 Industrial Councils. However, the one for the Iron, Steel, Engineering and Metallurgical Industries is the largest and most important covering nearly 500 000 workers. But only about 100 000 of these workers belong to trade unions. At the Industrial Council the employers and trade unions negotiate an agreement that covers all 500 000 workers. At present on the union side there are 14 trade unions - M A W U will make it 15. But most of these unions are racial unions and what are called craft unions - that is their members only do certain kinds of jobs e.g. boilermakers or electricians etc. On the employer side nearly all the 8400 factories in the industry are members of the employer association SEIFSA. It is SEIFSA - which is the largest and most powerful employer association in South Africa - that negotiates for employers on the Industrial Council.
- Full Text:
- Date Issued: Feb 1993
- Authors: MAWU, FOSATU
- Date: Feb 1993
- Subjects: FOSATU, MAWU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/110364 , vital:33272
- Description: This is a booklet to explain why M A W U has decided to join the Industrial Council for the Iron, Steel Engineering and Metallurgical Industry. In South Africa at present there are 104 Industrial Councils. However, the one for the Iron, Steel, Engineering and Metallurgical Industries is the largest and most important covering nearly 500 000 workers. But only about 100 000 of these workers belong to trade unions. At the Industrial Council the employers and trade unions negotiate an agreement that covers all 500 000 workers. At present on the union side there are 14 trade unions - M A W U will make it 15. But most of these unions are racial unions and what are called craft unions - that is their members only do certain kinds of jobs e.g. boilermakers or electricians etc. On the employer side nearly all the 8400 factories in the industry are members of the employer association SEIFSA. It is SEIFSA - which is the largest and most powerful employer association in South Africa - that negotiates for employers on the Industrial Council.
- Full Text:
- Date Issued: Feb 1993
New Unity Movement Bulletin
- Date: 2005-05
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10948/31756 , vital:31743 , Bulk File 7
- Description: The Bulletin was the official newsletter of the New Unity Movement. It was published about twice a year and contained articles reflecting the organisation's views on resistance to the Apartheid government.
- Full Text: false
- Date Issued: 2005-05
- Date: 2005-05
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10948/31756 , vital:31743 , Bulk File 7
- Description: The Bulletin was the official newsletter of the New Unity Movement. It was published about twice a year and contained articles reflecting the organisation's views on resistance to the Apartheid government.
- Full Text: false
- Date Issued: 2005-05
Himantura draco, a new species of stingray (Myliobatiformes: Dasyatidae) from South Africa: with a key to the Dasyatidae and the first record of Dasyatis kuhlii (Müller & Henle, 1841) from southern Africa
- Compagno, Leonard J V, Heemstra, Phillip C, J.L.B. Smith Institute of Ichthyology
- Authors: Compagno, Leonard J V , Heemstra, Phillip C , J.L.B. Smith Institute of Ichthyology
- Date: 1984-01
- Subjects: Fishes -- South Africa -- Classification , Stingrays -- Africa, Southern
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/70050 , vital:29610 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 33 , Himantura draco sp.n is described from an immature male specimen of 56 cm disc width collected at Durban. Dasyatis kuhlii is reported from southern Africa based on three specimens from Natal. Records of H. fava, H. imbricata and H. jenkinsii from southern Africa appear to be erroneous, the latter two being misidentifications of H. gerrardi, and the first a misidentified specimen of H. uarnak. Records of H. purpurea are apparently based on Dasyatis violacea and Himantura sp. (possibly H. fai). A key to the 13 species of dasyatids known from southern Africa is presented.
- Full Text:
- Date Issued: 1984-01
- Authors: Compagno, Leonard J V , Heemstra, Phillip C , J.L.B. Smith Institute of Ichthyology
- Date: 1984-01
- Subjects: Fishes -- South Africa -- Classification , Stingrays -- Africa, Southern
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/70050 , vital:29610 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 33 , Himantura draco sp.n is described from an immature male specimen of 56 cm disc width collected at Durban. Dasyatis kuhlii is reported from southern Africa based on three specimens from Natal. Records of H. fava, H. imbricata and H. jenkinsii from southern Africa appear to be erroneous, the latter two being misidentifications of H. gerrardi, and the first a misidentified specimen of H. uarnak. Records of H. purpurea are apparently based on Dasyatis violacea and Himantura sp. (possibly H. fai). A key to the 13 species of dasyatids known from southern Africa is presented.
- Full Text:
- Date Issued: 1984-01
Looking underneath: deconstruction in Hogarth's Industry and Idleness
- Authors: Herbst, Michael
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147803 , vital:38674 , https://doi.org/10.1080/00043389.2003.11877010
- Description: In Hogarth's engraved series Industry and Idleness two young men from lower-class backgrounds are apprenticed to Mr West, a weaver. The first plate (1) lays bare the two apprentices' marked difference in temperament: Francis Goodchild works contentedly at his well-lit loom with his 'Prentice's Guide- a standard manual of instruction and advice for London apprentices in various trades - open on the floor below him. In the gloomy foreground Thomas Idle snores crassly at his loom, oblivious of his 'Prentice's Guide, which has apparently been reduced to tatters by the cat that now toys with the abandoned shuttle.
- Full Text:
- Date Issued: 2017
- Authors: Herbst, Michael
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147803 , vital:38674 , https://doi.org/10.1080/00043389.2003.11877010
- Description: In Hogarth's engraved series Industry and Idleness two young men from lower-class backgrounds are apprenticed to Mr West, a weaver. The first plate (1) lays bare the two apprentices' marked difference in temperament: Francis Goodchild works contentedly at his well-lit loom with his 'Prentice's Guide- a standard manual of instruction and advice for London apprentices in various trades - open on the floor below him. In the gloomy foreground Thomas Idle snores crassly at his loom, oblivious of his 'Prentice's Guide, which has apparently been reduced to tatters by the cat that now toys with the abandoned shuttle.
- Full Text:
- Date Issued: 2017
M 87 at metre wavelengths: the LOFAR picture
- Smirnov, Oleg M, De Gasperin, F, Orrú, E, Murgia, M, Merloni, A, Falcke, H, Beck, R, Beswick, R, Bîrzan, L, Bonafede, A, Brüggen, M
- Authors: Smirnov, Oleg M , De Gasperin, F , Orrú, E , Murgia, M , Merloni, A , Falcke, H , Beck, R , Beswick, R , Bîrzan, L , Bonafede, A , Brüggen, M
- Date: 2012
- Subjects: radiation mechanisms: non-thermal, galaxies: active, galaxies: individual: M 87, galaxies: clusters: individual: Virgo, galaxies: jets, radio continuum: galaxies
- Language: English
- Type: Article
- Identifier: vital:6821 , http://hdl.handle.net/10962/d1004434
- Description: Context.M 87 is a giant elliptical galaxy located in the centre of the Virgo cluster, which harbours a supermassive black hole of mass 6.4 × 109 M⊙, whose activity is responsible for the extended (80 kpc) radio lobes that surround the galaxy. The energy generated by matter falling onto the central black hole is ejected and transferred to the intra-cluster medium via a relativistic jet and morphologically complex systems of buoyant bubbles, which rise towards the edges of the extended halo. Aims. To place constraints on past activity cycles of the active nucleus, images of M 87 were produced at low radio frequencies never explored before at these high spatial resolution and dynamic range. To disentangle different synchrotron models and place constraints on source magnetic field, age and energetics, we also performed a detailed spectral analysis of M 87 extended radio-halo. Methods. We present the first observations made with the new Low-Frequency Array (LOFAR) of M 87 at frequencies down to 20 MHz. Three observations were conducted, at 15−30 MHz, 30−77 MHz and 116−162 MHz. We used these observations together with archival data to produce a low-frequency spectral index map and to perform a spectral analysis in the wide frequency range 30 MHz–10 GHz. Results. We do not find any sign of new extended emissions; on the contrary the source appears well confined by the high pressure of the intra-cluster medium. A continuous injection of relativistic electrons is the model that best fits our data, and provides a scenario in which the lobes are still supplied by fresh relativistic particles from the active galactic nuclei. We suggest that the discrepancy between the low-frequency radio-spectral slope in the core and in the halo implies a strong adiabatic expansion of the plasma as soon as it leaves the core area. The extended halo has an equipartition magnetic field strength of ≃10 μG, which increases to ≃13 μG in the zones where the particle flows are more active. The continuous injection model for synchrotron ageing provides an age for the halo of ≃40 Myr, which in turn provides a jet kinetic power of 6−10 × 1044 erg s-1.
- Full Text:
- Date Issued: 2012
- Authors: Smirnov, Oleg M , De Gasperin, F , Orrú, E , Murgia, M , Merloni, A , Falcke, H , Beck, R , Beswick, R , Bîrzan, L , Bonafede, A , Brüggen, M
- Date: 2012
- Subjects: radiation mechanisms: non-thermal, galaxies: active, galaxies: individual: M 87, galaxies: clusters: individual: Virgo, galaxies: jets, radio continuum: galaxies
- Language: English
- Type: Article
- Identifier: vital:6821 , http://hdl.handle.net/10962/d1004434
- Description: Context.M 87 is a giant elliptical galaxy located in the centre of the Virgo cluster, which harbours a supermassive black hole of mass 6.4 × 109 M⊙, whose activity is responsible for the extended (80 kpc) radio lobes that surround the galaxy. The energy generated by matter falling onto the central black hole is ejected and transferred to the intra-cluster medium via a relativistic jet and morphologically complex systems of buoyant bubbles, which rise towards the edges of the extended halo. Aims. To place constraints on past activity cycles of the active nucleus, images of M 87 were produced at low radio frequencies never explored before at these high spatial resolution and dynamic range. To disentangle different synchrotron models and place constraints on source magnetic field, age and energetics, we also performed a detailed spectral analysis of M 87 extended radio-halo. Methods. We present the first observations made with the new Low-Frequency Array (LOFAR) of M 87 at frequencies down to 20 MHz. Three observations were conducted, at 15−30 MHz, 30−77 MHz and 116−162 MHz. We used these observations together with archival data to produce a low-frequency spectral index map and to perform a spectral analysis in the wide frequency range 30 MHz–10 GHz. Results. We do not find any sign of new extended emissions; on the contrary the source appears well confined by the high pressure of the intra-cluster medium. A continuous injection of relativistic electrons is the model that best fits our data, and provides a scenario in which the lobes are still supplied by fresh relativistic particles from the active galactic nuclei. We suggest that the discrepancy between the low-frequency radio-spectral slope in the core and in the halo implies a strong adiabatic expansion of the plasma as soon as it leaves the core area. The extended halo has an equipartition magnetic field strength of ≃10 μG, which increases to ≃13 μG in the zones where the particle flows are more active. The continuous injection model for synchrotron ageing provides an age for the halo of ≃40 Myr, which in turn provides a jet kinetic power of 6−10 × 1044 erg s-1.
- Full Text:
- Date Issued: 2012
The Educational Journal
- Date: 1982-08
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/36664 , vital:34031 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1982-08
- Date: 1982-08
- Subjects: Education –- South Africa , South Africa -- Politics and government , Government, Resistance to -- South Africa
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/36664 , vital:34031 , Bulk File 7
- Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa.
- Full Text: false
- Date Issued: 1982-08
[A] girl from the village: totally unspoilt
- Authors: Naidu, Samantha
- Date: 2020
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/158057 , vital:40144 , ISBN 9781498591775
- Description: The South Asian women’s diaspora engages in spatio-temporal interactions and power differentials in a variety of narratives, articulating agency, multiplicities of belonging and culturally integrative practices, highlighting homing paradigms. The sense of alienness in a new homeland, rather in worldwide home places, triggers rethinking of diasporic conceptions and epistemes of individual and group histories, personal and collective experiences. Some of the questions that this anthology seeks to consider are: How do women from the South Asian diaspora represent cultural negotiations and alienness of the adopted homeland in various narratives? What are the themes/issues they select to portray their perceptions of foreignness? How do culture, history and politics intervene in their portrayal of lived experiences? How do they locate themselves in the matrix of foreignness and diaspora? The contributors to this anthology examine narratives depicting South Asian women, their complexly positioned voices, gesturing at the proliferating challenges and reflecting the grim realities of a globalized world.
- Full Text:
- Date Issued: 2020
- Authors: Naidu, Samantha
- Date: 2020
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/158057 , vital:40144 , ISBN 9781498591775
- Description: The South Asian women’s diaspora engages in spatio-temporal interactions and power differentials in a variety of narratives, articulating agency, multiplicities of belonging and culturally integrative practices, highlighting homing paradigms. The sense of alienness in a new homeland, rather in worldwide home places, triggers rethinking of diasporic conceptions and epistemes of individual and group histories, personal and collective experiences. Some of the questions that this anthology seeks to consider are: How do women from the South Asian diaspora represent cultural negotiations and alienness of the adopted homeland in various narratives? What are the themes/issues they select to portray their perceptions of foreignness? How do culture, history and politics intervene in their portrayal of lived experiences? How do they locate themselves in the matrix of foreignness and diaspora? The contributors to this anthology examine narratives depicting South Asian women, their complexly positioned voices, gesturing at the proliferating challenges and reflecting the grim realities of a globalized world.
- Full Text:
- Date Issued: 2020
Futures studies for the southern African region : ‘from Africa’ not ‘on Africa’
- Fox, Roddy C, Rowntree, Kate M, Kaskinen, J
- Authors: Fox, Roddy C , Rowntree, Kate M , Kaskinen, J
- Date: 2012
- Language: English
- Type: Conference paper
- Identifier: vital:6668 , http://hdl.handle.net/10962/d1006685
- Description: Futures studies is well established in the Nordic region and its history can be readily charted, but in Africa it barely exists in an institutional form and its evolution and impact is little known or understood. The first two sections of our paper briefly examine the history of futures studies, spending most attention on the African experience. We go on to show that the Higher Education landscape in the Southern African Development Community (SADC) region is very different to that in the Nordic region. Recent futures reports present forecasts and scenarios that show a differentiated Higher Education landscape in the SADC; there are few Higher Education Institutions (HEIs) and even the most optimistic forecasts show that the region as a whole will not meet the international enrollment norm of 30% by 2050. The last part of the paper examines our experience of collaboration with Finland and its well developed linkages between state and Universities. One outcome of three years of collaboration from 2007 to 2009 between two SANORD members, the Finland Futures Research Centre (now a part of the University of Turku) and Rhodes University, was a proposal to develop a multi-disciplinary, inter-institutional futures studies program intended to help Africa find its own voice in futures studies. The final part of our presentation reflects on the unsuccessful experiences that we have had to date in finding funding. We conclude by asking whether our experience can be seen as highlighting some of the challenges SANORD may be positioned to overcome if the SADC region’s HEIs are to achieve the Knowledge Village scenario and begin to match their Nordic counterparts.
- Full Text:
- Date Issued: 2012
- Authors: Fox, Roddy C , Rowntree, Kate M , Kaskinen, J
- Date: 2012
- Language: English
- Type: Conference paper
- Identifier: vital:6668 , http://hdl.handle.net/10962/d1006685
- Description: Futures studies is well established in the Nordic region and its history can be readily charted, but in Africa it barely exists in an institutional form and its evolution and impact is little known or understood. The first two sections of our paper briefly examine the history of futures studies, spending most attention on the African experience. We go on to show that the Higher Education landscape in the Southern African Development Community (SADC) region is very different to that in the Nordic region. Recent futures reports present forecasts and scenarios that show a differentiated Higher Education landscape in the SADC; there are few Higher Education Institutions (HEIs) and even the most optimistic forecasts show that the region as a whole will not meet the international enrollment norm of 30% by 2050. The last part of the paper examines our experience of collaboration with Finland and its well developed linkages between state and Universities. One outcome of three years of collaboration from 2007 to 2009 between two SANORD members, the Finland Futures Research Centre (now a part of the University of Turku) and Rhodes University, was a proposal to develop a multi-disciplinary, inter-institutional futures studies program intended to help Africa find its own voice in futures studies. The final part of our presentation reflects on the unsuccessful experiences that we have had to date in finding funding. We conclude by asking whether our experience can be seen as highlighting some of the challenges SANORD may be positioned to overcome if the SADC region’s HEIs are to achieve the Knowledge Village scenario and begin to match their Nordic counterparts.
- Full Text:
- Date Issued: 2012
How to be or not to be? A critical dialogue on the limitations and opportunities of academic development in the current higher education context
- Behari-Leak, Kasturi, Chitanand, N, Padayachee, Kershree, Masehela, L, Vorster, Jo-Anne E, Ganas, Rieta, Merckel, Vanessa
- Authors: Behari-Leak, Kasturi , Chitanand, N , Padayachee, Kershree , Masehela, L , Vorster, Jo-Anne E , Ganas, Rieta , Merckel, Vanessa
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124217 , vital:35577 , https://hdl.handle.net/10520/EJC-13671ff578
- Description: In the tumultuous time we find ourselves, debates about pedagogy have taken centre stage once again. Concerns raised by the student protests of 2015 and 2016 have highlighted the urgent need to re-think traditional teaching, learning and assessment practices, as well as the development of decolonised and transformative curricula.Traditional notions of academic and professional development are now being tested and contested, insofar as they are able to respond to student challenges in appropriate, responsive, legitimate and relevant ways. As a professional organisation dedicated to supporting learning and teaching, the executive team of HELTASA responded to the challenge in this article by engaging with perspectives on the purpose, role and conceptualisation of academic development in the current decolonial moment in the South African Higher Education landscape. Critical processes that enable academics to engage, share thoughts and debate epistemological, pedagogical and methodological options to support students and academics are much needed. And the context and spirit in which these debates occur may be as important as the debates themselves.At its annual conference, the executive team facilitated a critical dialogue with conference delegates on the limitations and opportunities of AD in our current context. Given the diverse teaching and learning contexts and institutional differentiation in the sector, this article explores individual and collective theorised observations, reflections and experiences of the seven facilitators who led the CD. These reflections were analysed and discussed against the backdrop of AD as well as the affordances of CD as a participatory learning and engagement methodology. The findings showed that there is dire need to re-imagine, not only AD’s role but alternative forms of critical engagement in the sector.
- Full Text:
- Date Issued: 2018
- Authors: Behari-Leak, Kasturi , Chitanand, N , Padayachee, Kershree , Masehela, L , Vorster, Jo-Anne E , Ganas, Rieta , Merckel, Vanessa
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124217 , vital:35577 , https://hdl.handle.net/10520/EJC-13671ff578
- Description: In the tumultuous time we find ourselves, debates about pedagogy have taken centre stage once again. Concerns raised by the student protests of 2015 and 2016 have highlighted the urgent need to re-think traditional teaching, learning and assessment practices, as well as the development of decolonised and transformative curricula.Traditional notions of academic and professional development are now being tested and contested, insofar as they are able to respond to student challenges in appropriate, responsive, legitimate and relevant ways. As a professional organisation dedicated to supporting learning and teaching, the executive team of HELTASA responded to the challenge in this article by engaging with perspectives on the purpose, role and conceptualisation of academic development in the current decolonial moment in the South African Higher Education landscape. Critical processes that enable academics to engage, share thoughts and debate epistemological, pedagogical and methodological options to support students and academics are much needed. And the context and spirit in which these debates occur may be as important as the debates themselves.At its annual conference, the executive team facilitated a critical dialogue with conference delegates on the limitations and opportunities of AD in our current context. Given the diverse teaching and learning contexts and institutional differentiation in the sector, this article explores individual and collective theorised observations, reflections and experiences of the seven facilitators who led the CD. These reflections were analysed and discussed against the backdrop of AD as well as the affordances of CD as a participatory learning and engagement methodology. The findings showed that there is dire need to re-imagine, not only AD’s role but alternative forms of critical engagement in the sector.
- Full Text:
- Date Issued: 2018
Reflections on the appropriate use of unjustly conferred privilege:
- Authors: Matthews, Sally
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/142714 , vital:38104 , DOI: 10.3167/th.2013.6013502
- Description: What ought beneficiaries of injustice to do with the privileges unjustly conferred upon them? This article examines how those who have been privileged as a consequence of injustice can best contribute to struggles for justice. In particular, I ask whether we ought to renounce privileges which have been unjustly conferred, or whether it may be better to use such privileges in ways that help bring about justice. The article engages in particular with feminist literature on the topic of privilege, building on arguments provided in this literature to argue that in many cases the best contribution the privileged can make to struggles for justice, is to use unjustly conferred privileges in a way that ultimately undermines the unjust systems and structures that conferred them. I tentatively outline some ways in which the privileged can develop the sensibilities which will allow them to use their privilege in this way.
- Full Text:
- Date Issued: 2013
- Authors: Matthews, Sally
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/142714 , vital:38104 , DOI: 10.3167/th.2013.6013502
- Description: What ought beneficiaries of injustice to do with the privileges unjustly conferred upon them? This article examines how those who have been privileged as a consequence of injustice can best contribute to struggles for justice. In particular, I ask whether we ought to renounce privileges which have been unjustly conferred, or whether it may be better to use such privileges in ways that help bring about justice. The article engages in particular with feminist literature on the topic of privilege, building on arguments provided in this literature to argue that in many cases the best contribution the privileged can make to struggles for justice, is to use unjustly conferred privileges in a way that ultimately undermines the unjust systems and structures that conferred them. I tentatively outline some ways in which the privileged can develop the sensibilities which will allow them to use their privilege in this way.
- Full Text:
- Date Issued: 2013