Quantitative analysis of time-resolved infrared stimulated luminescence in feldspars
- Pagonis, Vasilis, Ankjærgaard, Christina, Jain, Mayank, Chithambo, Makaiko L
- Authors: Pagonis, Vasilis , Ankjærgaard, Christina , Jain, Mayank , Chithambo, Makaiko L
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124616 , vital:35638 , DOI: 10.1016/j.physb.2016.06.013
- Description: Time-resolved infrared-stimulated luminescence (TR-IRSL) from feldspar samples is of importance in the field of luminescence dating, since it provides information on the luminescence mechanism in these materials. In this paper we present new analytical equations which can be used to analyze TR-IRSL signals, both during and after short infrared stimulation pulses. The equations are developed using a recently proposed kinetic model, which describes localized electronic recombination via tunneling between trapped electrons and recombination centers in luminescent materials. Recombination is assumed to take place from the excited state of the trapped electron to the nearest-neighbor center within a random distribution of luminescence recombination centers. Different possibilities are examined within the model, depending on the relative importance of electron de-excitation and recombination. The equations are applied to experimental TR-IRSL data of natural feldspars, and good agreement is found between experimental and modeling results.
- Full Text:
- Date Issued: 2016
- Authors: Pagonis, Vasilis , Ankjærgaard, Christina , Jain, Mayank , Chithambo, Makaiko L
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124616 , vital:35638 , DOI: 10.1016/j.physb.2016.06.013
- Description: Time-resolved infrared-stimulated luminescence (TR-IRSL) from feldspar samples is of importance in the field of luminescence dating, since it provides information on the luminescence mechanism in these materials. In this paper we present new analytical equations which can be used to analyze TR-IRSL signals, both during and after short infrared stimulation pulses. The equations are developed using a recently proposed kinetic model, which describes localized electronic recombination via tunneling between trapped electrons and recombination centers in luminescent materials. Recombination is assumed to take place from the excited state of the trapped electron to the nearest-neighbor center within a random distribution of luminescence recombination centers. Different possibilities are examined within the model, depending on the relative importance of electron de-excitation and recombination. The equations are applied to experimental TR-IRSL data of natural feldspars, and good agreement is found between experimental and modeling results.
- Full Text:
- Date Issued: 2016
The IMSSA Review Number 8
- INDEPENDENT MEDIATION SERVICE OF SOUTH AFRICA (IMSSA)
- Authors: INDEPENDENT MEDIATION SERVICE OF SOUTH AFRICA (IMSSA)
- Date: 1989
- Subjects: IMSSA
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/176085 , vital:42658
- Description: The first six months of 1989 has proved to be as busy as predicted, and the demand for mediation and arbitration services has increased steadily during this period. Year on year, whereas there were some 120 mediations and 75 arbitrations during the first six months of 1988, there were 195 mediations and 117 arbitrations during the first six months of 1989. This increase in demand may be attributed to a number of factors. In the first place, with the ever increasing unionisation of workers in South Africa a wider range of parties are resorting to third party intervention to resolve disputes. Secondly, labour and management who have had experience of mediation and arbitration, have continued to use third party neutrals to assist them in the process of dispute resolution. And thirdly, given the current political climate and the attitude of the major trade union federations to the recent amendments to the Labour Relations Act, it is apparent that parties are turning with greater frequency to independent third party neutrals to assist them resolve conflict. There are, for example, an increasing number of recognition agreements which require that conflicts of right be adjudicated through private arbitration under the auspices of IMSSA. Some German multinationals have, in accordance with the IG Metaal Code of Conduct for German investors in South Africa, agreed to refer disputes of right to private arbitration. IMSSA has for some time now been cited in the disputes procedures of many recognition agreements as the source of mediators.
- Full Text:
- Date Issued: 1989
- Authors: INDEPENDENT MEDIATION SERVICE OF SOUTH AFRICA (IMSSA)
- Date: 1989
- Subjects: IMSSA
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/176085 , vital:42658
- Description: The first six months of 1989 has proved to be as busy as predicted, and the demand for mediation and arbitration services has increased steadily during this period. Year on year, whereas there were some 120 mediations and 75 arbitrations during the first six months of 1988, there were 195 mediations and 117 arbitrations during the first six months of 1989. This increase in demand may be attributed to a number of factors. In the first place, with the ever increasing unionisation of workers in South Africa a wider range of parties are resorting to third party intervention to resolve disputes. Secondly, labour and management who have had experience of mediation and arbitration, have continued to use third party neutrals to assist them in the process of dispute resolution. And thirdly, given the current political climate and the attitude of the major trade union federations to the recent amendments to the Labour Relations Act, it is apparent that parties are turning with greater frequency to independent third party neutrals to assist them resolve conflict. There are, for example, an increasing number of recognition agreements which require that conflicts of right be adjudicated through private arbitration under the auspices of IMSSA. Some German multinationals have, in accordance with the IG Metaal Code of Conduct for German investors in South Africa, agreed to refer disputes of right to private arbitration. IMSSA has for some time now been cited in the disputes procedures of many recognition agreements as the source of mediators.
- Full Text:
- Date Issued: 1989
Good faith and procedural unfairness in contract: Eerste Nationale Bank van Suidelike Afrika Bpk v Saayman 1997 (4) SA 302 (A)
- Authors: Glover, Graham B
- Date: 1998
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/155975 , vital:39937 , https://heinonline.org/HOL/Page?collection=journalsamp;handle=hein.journals/tyromhldre61amp;id=358amp;men_tab=srchresults
- Description: "It is unlikely that Bank of Lisbon will remain the last word on the matter of good faith and contract law" (Zimmermann "Good faith and equity" in Zimmermann and Visser (eds) Southern cross: Civil law and common law in South Africa (1996) 256). These words have proved to be prophetic in the light of the recent decision handed down by the Supreme Court of Appeal in Eerste Nasionale Bank van Suidelike Afrika Bpk v Saayman.
- Full Text: false
- Date Issued: 1998
- Authors: Glover, Graham B
- Date: 1998
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/155975 , vital:39937 , https://heinonline.org/HOL/Page?collection=journalsamp;handle=hein.journals/tyromhldre61amp;id=358amp;men_tab=srchresults
- Description: "It is unlikely that Bank of Lisbon will remain the last word on the matter of good faith and contract law" (Zimmermann "Good faith and equity" in Zimmermann and Visser (eds) Southern cross: Civil law and common law in South Africa (1996) 256). These words have proved to be prophetic in the light of the recent decision handed down by the Supreme Court of Appeal in Eerste Nasionale Bank van Suidelike Afrika Bpk v Saayman.
- Full Text: false
- Date Issued: 1998
Campaigns Bulletin : The government is starving us to death!
- SAMWU
- Authors: SAMWU
- Date: May 2001
- Subjects: SAMWU
- Language: English, Zulu, Swati, Xhosa, sePedi, seSotho and Afrikaans
- Type: text
- Identifier: http://hdl.handle.net/10962/113537 , vital:33799
- Description: The wage talks are resuming on May 8th 2001. At the time of going to print, all provinces were holding marches all over the country to highlight our demands for a living wage. Currently on the table is a proposal by the conciliator that all parties should agree to accept an 8% across the board increase, and an increase in the minimum wage to R1900. Firstly this proposal has not yet been accepted by the employer. At the conciliation, the employer stuck to 5% only. Secondly this falls short of our demand. It means we will not get the R300 across the board. Any worker earning below R3800 per month is going to get an increase of less than R300. The hardest hit will be workers earning from R1700 - R3000 who will only get R136 - R240. There is nothing more we can get from conciliation or negotiations. It is now up to YOU the workers to decide if you will accept the 8% offer put on the table by the conciliator!
- Full Text:
- Date Issued: May 2001
- Authors: SAMWU
- Date: May 2001
- Subjects: SAMWU
- Language: English, Zulu, Swati, Xhosa, sePedi, seSotho and Afrikaans
- Type: text
- Identifier: http://hdl.handle.net/10962/113537 , vital:33799
- Description: The wage talks are resuming on May 8th 2001. At the time of going to print, all provinces were holding marches all over the country to highlight our demands for a living wage. Currently on the table is a proposal by the conciliator that all parties should agree to accept an 8% across the board increase, and an increase in the minimum wage to R1900. Firstly this proposal has not yet been accepted by the employer. At the conciliation, the employer stuck to 5% only. Secondly this falls short of our demand. It means we will not get the R300 across the board. Any worker earning below R3800 per month is going to get an increase of less than R300. The hardest hit will be workers earning from R1700 - R3000 who will only get R136 - R240. There is nothing more we can get from conciliation or negotiations. It is now up to YOU the workers to decide if you will accept the 8% offer put on the table by the conciliator!
- Full Text:
- Date Issued: May 2001
Victimisation in the lives of lesbian-identified women in South Africa : implications for clinical assessment and treatment
- Padmanabhanunni, A, Edwards, David J A
- Authors: Padmanabhanunni, A , Edwards, David J A
- Date: 2013
- Language: English
- Type: Article
- Identifier: vital:6237 , http://hdl.handle.net/10962/d1007787
- Description: Few clinical studies have examined victimisation in the lives of lesbian women in South Africa and whether there are distinct implications for psychological treatment. This paper presents the assessment and treatment of a lesbian-identified South African survivor of childhood sexual abuse who, as an adult, was raped and later gang raped. Her victimisation in adulthood represented ‘corrective rape’ motivated by the prejudiced assumption that the sexuality of lesbian women is pathological and should be ‘corrected’ through rape. This paper lends insights into the role of heterosexism in shaping vulnerability to victimisation and the process of recovery. It provides recommendations for work with sexual minority clients and highlights the implications when there is an absence of safety and support in the external environment.
- Full Text:
- Date Issued: 2013
- Authors: Padmanabhanunni, A , Edwards, David J A
- Date: 2013
- Language: English
- Type: Article
- Identifier: vital:6237 , http://hdl.handle.net/10962/d1007787
- Description: Few clinical studies have examined victimisation in the lives of lesbian women in South Africa and whether there are distinct implications for psychological treatment. This paper presents the assessment and treatment of a lesbian-identified South African survivor of childhood sexual abuse who, as an adult, was raped and later gang raped. Her victimisation in adulthood represented ‘corrective rape’ motivated by the prejudiced assumption that the sexuality of lesbian women is pathological and should be ‘corrected’ through rape. This paper lends insights into the role of heterosexism in shaping vulnerability to victimisation and the process of recovery. It provides recommendations for work with sexual minority clients and highlights the implications when there is an absence of safety and support in the external environment.
- Full Text:
- Date Issued: 2013
SADSAWU - International workers day
- SADSAWU
- Authors: SADSAWU
- Date: June 2012
- Subjects: SADSAWU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/117975 , vital:34581
- Description: A year has gone by, after the adoption of International Labour Organisation's (ILO) Convention 189 for Domestic Workers. We have worked so hard for nearly four years, to ensure that our work is recognised as decent work! On 16th June 2011 we made history when Convention 189 was adopted. In this year gone by, only one government has signed the ratification of Convention 189. We set ourselves a goal: We want at least 12 governments to sign, one each month as part of the international 12 to 12 Campaign with the International Trade Union Congress (ITUC) and International Domestic Workers' Network (IDWN). South Africa shcAild be the second government to sign and ratify 189, meaning it becomes labour law, as South Africa was the most supportive and vocal government leading the campaign for Convention 189 at the International Labour Conference.
- Full Text:
- Date Issued: June 2012
- Authors: SADSAWU
- Date: June 2012
- Subjects: SADSAWU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/117975 , vital:34581
- Description: A year has gone by, after the adoption of International Labour Organisation's (ILO) Convention 189 for Domestic Workers. We have worked so hard for nearly four years, to ensure that our work is recognised as decent work! On 16th June 2011 we made history when Convention 189 was adopted. In this year gone by, only one government has signed the ratification of Convention 189. We set ourselves a goal: We want at least 12 governments to sign, one each month as part of the international 12 to 12 Campaign with the International Trade Union Congress (ITUC) and International Domestic Workers' Network (IDWN). South Africa shcAild be the second government to sign and ratify 189, meaning it becomes labour law, as South Africa was the most supportive and vocal government leading the campaign for Convention 189 at the International Labour Conference.
- Full Text:
- Date Issued: June 2012
Incorporation of Ni(II)-dimethylglyoxime ion-imprinted polymer into electrospun polysulphone nanofibre for the determination of Ni(II) ions from aqueous samples
- Rammika, M, Darko, G, Torto, N
- Authors: Rammika, M , Darko, G , Torto, N
- Date: 2011
- Language: English
- Type: Article
- Identifier: vital:6589 , http://hdl.handle.net/10962/d1004172
- Description: Ni(II)-dimethylglyoxime ion-imprinted polymer (Ni(II)-DMG IIP) was encapsulated in polysulphone and electrospun into nanofibres with diameters ranging from 406 to 854 nm. The structures of the Ni(II)-DMG encapsulated-IIP nanofibre, non-imprinted encapsulated-polymer nanofibre and polysulphone nanofibre mats were observed by scanning electron microscopy and evaluated by infrared spectroscopy. Electrospinning increased the specific surface area of the Ni(II)-DMG encapsulated-IIP nanofibre mats, as was evidenced by the low masses of the Ni(II)-DMG encapsulated-IIP nanofibre mats used. The accuracy of the method was validated by analysing a custom solution of certified reference material (SEP-3); the concentration of Ni(II) obtained was close to the certified one. The limit of detection was found to be 4.0x10-4 μg∙mℓ−1 while the limit of quantification was found to be 1.2x10-3 μg∙mℓ−1. The recovery of Ni(II) achieved using the Ni(II)-DMG imprinted nanofibre mats in water samples was found to range from 83 to 89%, while that of non-imprinted nanofibre mats was found to range from 59 to 65%, and that of polysulphone from 55 to 62%.
- Full Text:
- Date Issued: 2011
- Authors: Rammika, M , Darko, G , Torto, N
- Date: 2011
- Language: English
- Type: Article
- Identifier: vital:6589 , http://hdl.handle.net/10962/d1004172
- Description: Ni(II)-dimethylglyoxime ion-imprinted polymer (Ni(II)-DMG IIP) was encapsulated in polysulphone and electrospun into nanofibres with diameters ranging from 406 to 854 nm. The structures of the Ni(II)-DMG encapsulated-IIP nanofibre, non-imprinted encapsulated-polymer nanofibre and polysulphone nanofibre mats were observed by scanning electron microscopy and evaluated by infrared spectroscopy. Electrospinning increased the specific surface area of the Ni(II)-DMG encapsulated-IIP nanofibre mats, as was evidenced by the low masses of the Ni(II)-DMG encapsulated-IIP nanofibre mats used. The accuracy of the method was validated by analysing a custom solution of certified reference material (SEP-3); the concentration of Ni(II) obtained was close to the certified one. The limit of detection was found to be 4.0x10-4 μg∙mℓ−1 while the limit of quantification was found to be 1.2x10-3 μg∙mℓ−1. The recovery of Ni(II) achieved using the Ni(II)-DMG imprinted nanofibre mats in water samples was found to range from 83 to 89%, while that of non-imprinted nanofibre mats was found to range from 59 to 65%, and that of polysulphone from 55 to 62%.
- Full Text:
- Date Issued: 2011
Optically stimulated luminescence and spectral emission features of radioluminescence and thermoluminescence of natural kunzite:
- Alatishe, M A, Ogundare, F O, Folley, Damilola E, Chithambo, Makaiko L, Chikwembani, S
- Authors: Alatishe, M A , Ogundare, F O , Folley, Damilola E , Chithambo, Makaiko L , Chikwembani, S
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/160478 , vital:40449 , https://doi.org/10.1016/j.radmeas.2020.106457
- Description: Features of luminescence optically stimulated from natural kunzite using 470 nm blue light are reported. Preparatory measurements of its X-ray excited radioluminescence and thermoluminescence show that the sample has two main bands centered at 360 nm and 600 nm. The optically stimulated luminescence discussed in this report was monitored in the UV region and is presumed to be the same 360 nm emission that appears in the radioluminescence and thermoluminescence spectra. The glow curve shows at least three peaks at 74, 202, 432 oC for heating at 1 oC and the third one is a composite of two. Only the first two peaks are deduced to contribute most of the optically stimulated luminescence.
- Full Text:
- Date Issued: 2020
- Authors: Alatishe, M A , Ogundare, F O , Folley, Damilola E , Chithambo, Makaiko L , Chikwembani, S
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/160478 , vital:40449 , https://doi.org/10.1016/j.radmeas.2020.106457
- Description: Features of luminescence optically stimulated from natural kunzite using 470 nm blue light are reported. Preparatory measurements of its X-ray excited radioluminescence and thermoluminescence show that the sample has two main bands centered at 360 nm and 600 nm. The optically stimulated luminescence discussed in this report was monitored in the UV region and is presumed to be the same 360 nm emission that appears in the radioluminescence and thermoluminescence spectra. The glow curve shows at least three peaks at 74, 202, 432 oC for heating at 1 oC and the third one is a composite of two. Only the first two peaks are deduced to contribute most of the optically stimulated luminescence.
- Full Text:
- Date Issued: 2020
Employing safe bets: reflections on attracting, developing and retaining the next generation of academics
- Authors: Hlengwa, Amanda I
- Date: 2015
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/142145 , vital:38053 , ISBN 9781869142902 , https://books.google.co.za/books?id=49o8rgEACAAJanddq=Being+at+home:+Race,+institutional+culture+and+transformation+at+South+African+higher+education+institutionandhl=enandsa=Xandved=0ahUKEwiPgsa6mpjjAhXNN8AKHbNwAtoQ6AEIKDAA
- Description: This edited work has gathered together contributions on how to transform universities in South Africa; as many are struggling to shift their institutional culture. In a South African context, transformation means to attempt to change higher education institutions such that they no longer reflect the values promoted by apartheid but rather reflect the values embodied in South Africa's 1996 Constitution. Institutional culture is the main subject for discussion in this book. In order to transform South Africa's universities, the contributors begin by analyzing the idea of what a university is, and relatedly, what its ideal aims are. A second theme is to understand what institutional culture is and how it functions. Moreover, transformation cannot occur without transforming the broader cultures of which they are a part. Related to this theme is a general concern about how contemporary moves towards the instrumentalization of higher education affect the ability to transform institutions. These institutions are being pushed to conform to goals that are outside the traditional idea of a university, such as concerns that universities are being 'bureaucratized' and becoming corporations, instead of a place of learning open to all. In conclusion it can be said that the contemporary South African academic community has an opportunity to recreate itself as the end of apartheid created space for engaging in transformative epistemic projects. The transformation of the tertiary sector entails a transformation of institutional cultures.
- Full Text:
- Date Issued: 2015
- Authors: Hlengwa, Amanda I
- Date: 2015
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/142145 , vital:38053 , ISBN 9781869142902 , https://books.google.co.za/books?id=49o8rgEACAAJanddq=Being+at+home:+Race,+institutional+culture+and+transformation+at+South+African+higher+education+institutionandhl=enandsa=Xandved=0ahUKEwiPgsa6mpjjAhXNN8AKHbNwAtoQ6AEIKDAA
- Description: This edited work has gathered together contributions on how to transform universities in South Africa; as many are struggling to shift their institutional culture. In a South African context, transformation means to attempt to change higher education institutions such that they no longer reflect the values promoted by apartheid but rather reflect the values embodied in South Africa's 1996 Constitution. Institutional culture is the main subject for discussion in this book. In order to transform South Africa's universities, the contributors begin by analyzing the idea of what a university is, and relatedly, what its ideal aims are. A second theme is to understand what institutional culture is and how it functions. Moreover, transformation cannot occur without transforming the broader cultures of which they are a part. Related to this theme is a general concern about how contemporary moves towards the instrumentalization of higher education affect the ability to transform institutions. These institutions are being pushed to conform to goals that are outside the traditional idea of a university, such as concerns that universities are being 'bureaucratized' and becoming corporations, instead of a place of learning open to all. In conclusion it can be said that the contemporary South African academic community has an opportunity to recreate itself as the end of apartheid created space for engaging in transformative epistemic projects. The transformation of the tertiary sector entails a transformation of institutional cultures.
- Full Text:
- Date Issued: 2015
Applications of lead phthalocyanines embedded in electrospun fibers for the photoinactivation of Escherichia coli in water
- Osifeko, Olawale L, Nyokong, Tebello
- Authors: Osifeko, Olawale L , Nyokong, Tebello
- Date: 2014
- Language: English
- Type: Article
- Identifier: vital:7304 , http://hdl.handle.net/10962/d1020381
- Description: Lead (II) pyridyloxyphthalocyanine (PbTpyPc) and its quaternized form (PbTepyPc) were synthesized and the photophysical behavior examined. Low fluorescence quantum yields (ΦF) of 0.01 and 0.02 were observed for PbTepyPc and PbTpyPc, respectively. The singlet oxygen quantum yields (ΦΔ) were 0.60 and 0.68, for PbTepyPc and PbTpyPc, respectively using DPBF as a quencher in DMF. Singlet oxygen production of the embedded sensitizers in electrospun fiber were quantified using ADMA and were found to be ΦΔ = 0.41 and ΦΔ = 0.21 for PbTepyPc and PbTpyPc, respectively. Photodynamic inactivation of Escherichia coli (E. coli) with the quaternized photosensitizer at 5 μM, totally inactivated the E. coli (with log CFU = 10 decrease). Only 0.4 log CFU decrease was obtained with PbTpyPc. The embedded non-quaternized photosensitizer (PbTpyPc) was less active on the gram negative bacteria but the quaternized photosensitizer (PbTepyPc) was effective towards inactivation of E. coli. , Original publication is available at http://dx.doi.org/10.1016/j.dyepig.2014.05.010
- Full Text: false
- Date Issued: 2014
- Authors: Osifeko, Olawale L , Nyokong, Tebello
- Date: 2014
- Language: English
- Type: Article
- Identifier: vital:7304 , http://hdl.handle.net/10962/d1020381
- Description: Lead (II) pyridyloxyphthalocyanine (PbTpyPc) and its quaternized form (PbTepyPc) were synthesized and the photophysical behavior examined. Low fluorescence quantum yields (ΦF) of 0.01 and 0.02 were observed for PbTepyPc and PbTpyPc, respectively. The singlet oxygen quantum yields (ΦΔ) were 0.60 and 0.68, for PbTepyPc and PbTpyPc, respectively using DPBF as a quencher in DMF. Singlet oxygen production of the embedded sensitizers in electrospun fiber were quantified using ADMA and were found to be ΦΔ = 0.41 and ΦΔ = 0.21 for PbTepyPc and PbTpyPc, respectively. Photodynamic inactivation of Escherichia coli (E. coli) with the quaternized photosensitizer at 5 μM, totally inactivated the E. coli (with log CFU = 10 decrease). Only 0.4 log CFU decrease was obtained with PbTpyPc. The embedded non-quaternized photosensitizer (PbTpyPc) was less active on the gram negative bacteria but the quaternized photosensitizer (PbTepyPc) was effective towards inactivation of E. coli. , Original publication is available at http://dx.doi.org/10.1016/j.dyepig.2014.05.010
- Full Text: false
- Date Issued: 2014
Condition Report 3: Art History in Africa: debating localization,legitimization and new solidarities
- Simbao, Ruth K, Kouoh, Koyo, Nzewi, Ugochukwu-Smooth C, Sousa, Suzana, Koide, Emi
- Authors: Simbao, Ruth K , Kouoh, Koyo , Nzewi, Ugochukwu-Smooth C , Sousa, Suzana , Koide, Emi
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146055 , vital:38491 , https://0-doi.org.wam.seals.ac.za/10.1162/afar_a_00456
- Description: Following on from the African Arts dialogue, “Zimbabwe Mobilizes: ICAC's Shift from Coup de Grăce to Cultural Coup” (Simbao et al. 2017) this dialogue considers another important event in the visual arts that recently took place on the African continent. Like the International Conference on African Cultures (ICAC) that was held in Harare in 2017, this event in Dakar contributes in important ways towards a shift of the center of gravity of the global academy, particularly the study of art history in and of Africa.
- Full Text:
- Date Issued: 2019
Condition Report 3: Art History in Africa: debating localization,legitimization and new solidarities
- Authors: Simbao, Ruth K , Kouoh, Koyo , Nzewi, Ugochukwu-Smooth C , Sousa, Suzana , Koide, Emi
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146055 , vital:38491 , https://0-doi.org.wam.seals.ac.za/10.1162/afar_a_00456
- Description: Following on from the African Arts dialogue, “Zimbabwe Mobilizes: ICAC's Shift from Coup de Grăce to Cultural Coup” (Simbao et al. 2017) this dialogue considers another important event in the visual arts that recently took place on the African continent. Like the International Conference on African Cultures (ICAC) that was held in Harare in 2017, this event in Dakar contributes in important ways towards a shift of the center of gravity of the global academy, particularly the study of art history in and of Africa.
- Full Text:
- Date Issued: 2019
Centralised bargaining now! - CWIU NBC OUTLINES PROGRAMME OF ACTION
- CWIU
- Authors: CWIU
- Date: May 1992
- Subjects: CWIU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/110172 , vital:33239
- Description: Over 150 delegates from different sectors and branches of CWIU met at Wits University on 4/ 5 April to plot the way forward within the industry. This was the unions second National Bargaining Conference. The key issue at the conference was how to fight for centralised bargaining. Keynote addresses were delivered by the Acting General Secretary, Cde Muzi Buthelezi, Cde Jay Naidoo COSATU General Secretary and CWIU President, Cde Don Gumede. Cde Gumede outlined the purposes of the conference “to assess progress and problems, to plan our path in order to provide a clear programme towards centralised bargaining as a result of proper analysis”, He urged delegates “to push employers into joint employers forums to negotiate on proper wages, job creation and an end to retrenchments”. Cde Jay Naidoo addressed the conference on the burning issues of the day. He spoke about VAT, the National Economic Negotiating Forum, trade union unity and CODESA. Cde Naidoo stressed that future economic and political policies must be formulated on the basis of daily and immediate issues facing the working people.
- Full Text:
- Date Issued: May 1992
- Authors: CWIU
- Date: May 1992
- Subjects: CWIU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/110172 , vital:33239
- Description: Over 150 delegates from different sectors and branches of CWIU met at Wits University on 4/ 5 April to plot the way forward within the industry. This was the unions second National Bargaining Conference. The key issue at the conference was how to fight for centralised bargaining. Keynote addresses were delivered by the Acting General Secretary, Cde Muzi Buthelezi, Cde Jay Naidoo COSATU General Secretary and CWIU President, Cde Don Gumede. Cde Gumede outlined the purposes of the conference “to assess progress and problems, to plan our path in order to provide a clear programme towards centralised bargaining as a result of proper analysis”, He urged delegates “to push employers into joint employers forums to negotiate on proper wages, job creation and an end to retrenchments”. Cde Jay Naidoo addressed the conference on the burning issues of the day. He spoke about VAT, the National Economic Negotiating Forum, trade union unity and CODESA. Cde Naidoo stressed that future economic and political policies must be formulated on the basis of daily and immediate issues facing the working people.
- Full Text:
- Date Issued: May 1992
Fundamentals of Information Systems: IFS 121 & 121E
- Authors: Boucher, D , Wayi, N
- Date: 2010-11
- Subjects: Information resources management
- Language: English
- Type: Examination paper
- Identifier: vital:17479 , http://hdl.handle.net/10353/d1010347
- Description: Fundamentals of Information Systems: IFS 121 & 121E, Supplementary examination November 2010.
- Full Text: false
- Date Issued: 2010-11
- Authors: Boucher, D , Wayi, N
- Date: 2010-11
- Subjects: Information resources management
- Language: English
- Type: Examination paper
- Identifier: vital:17479 , http://hdl.handle.net/10353/d1010347
- Description: Fundamentals of Information Systems: IFS 121 & 121E, Supplementary examination November 2010.
- Full Text: false
- Date Issued: 2010-11
A programme for the alliance
- COSATU
- Authors: COSATU
- Date: 1996
- Subjects: COSATU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/155650 , vital:39902
- Description: From Cosatu’s inception in 1985, the federation developed a close association with the Congress movement. Conditions in the country dictated the need to go beyond bread and butter issues to embrace national and class struggle. This perspective was formally endorsed with Cosatu’s adoption of the Freedom Charter in 1987. The 1987 Congress agreed Cosatu should build alliances with mass-based organisations with a track record of struggle and whose principles did not conflict with those of Cosatu. After the unbanning of the liberation movement, Cosatu’s 1991 Congress resolved that the Federation should join the ANC and SACP in alliance in place of Sactu, thus becoming part of the Tripartite Alliance as we know it today.
- Full Text:
- Date Issued: 1996
- Authors: COSATU
- Date: 1996
- Subjects: COSATU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/155650 , vital:39902
- Description: From Cosatu’s inception in 1985, the federation developed a close association with the Congress movement. Conditions in the country dictated the need to go beyond bread and butter issues to embrace national and class struggle. This perspective was formally endorsed with Cosatu’s adoption of the Freedom Charter in 1987. The 1987 Congress agreed Cosatu should build alliances with mass-based organisations with a track record of struggle and whose principles did not conflict with those of Cosatu. After the unbanning of the liberation movement, Cosatu’s 1991 Congress resolved that the Federation should join the ANC and SACP in alliance in place of Sactu, thus becoming part of the Tripartite Alliance as we know it today.
- Full Text:
- Date Issued: 1996
Evaluation of kinetic parameters of traps in thermoluminescence phosphors
- Ogundare, F O, Balogun, F A, Hussain, L
- Authors: Ogundare, F O , Balogun, F A , Hussain, L
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6798 , http://hdl.handle.net/10962/d1003924 , http://dx.doi.org/10.1016/j.radmeas.2006.06.014
- Description: A method for evaluating trap depth E, order of kinetics b and frequency factor s from a thermoluminescence (TL) glow peak has been developed. The method is based on using intensities and temperatures at any three points on the glow peak. Unlike similar techniques that provide no expression for frequency factor, the present formulation provides such an expression. The expression does not require knowledge of the temperature at which maximum intensity occurs, a parameter not usually known accurately from experimental glow peak data. For the method, it is found that use of points in the ascending part of the glow peak where the intensities are less than 10% maximum intensity gives parameter values closest to the true ones. Possible reasons for getting less accurate results when points are taken beyond this region are discussed. Values of the activation energy calculated using the present technique were always close to the true value. However, the frequency factor only approaches the true value as the dose given to the sample approaches saturation. When the three data points are selected in the initial-rise region, the equation for evaluating E in the method described in this paper becomes a two-point version of the initial-rise method. The advantage of the present technique over the initial-rise method is that it also gives b and hence s. The method is used to analyse the TL glow curve of a gamma-irradiated sample from Ijero-Ekiti, Nigeria.
- Full Text:
- Date Issued: 2006
- Authors: Ogundare, F O , Balogun, F A , Hussain, L
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6798 , http://hdl.handle.net/10962/d1003924 , http://dx.doi.org/10.1016/j.radmeas.2006.06.014
- Description: A method for evaluating trap depth E, order of kinetics b and frequency factor s from a thermoluminescence (TL) glow peak has been developed. The method is based on using intensities and temperatures at any three points on the glow peak. Unlike similar techniques that provide no expression for frequency factor, the present formulation provides such an expression. The expression does not require knowledge of the temperature at which maximum intensity occurs, a parameter not usually known accurately from experimental glow peak data. For the method, it is found that use of points in the ascending part of the glow peak where the intensities are less than 10% maximum intensity gives parameter values closest to the true ones. Possible reasons for getting less accurate results when points are taken beyond this region are discussed. Values of the activation energy calculated using the present technique were always close to the true value. However, the frequency factor only approaches the true value as the dose given to the sample approaches saturation. When the three data points are selected in the initial-rise region, the equation for evaluating E in the method described in this paper becomes a two-point version of the initial-rise method. The advantage of the present technique over the initial-rise method is that it also gives b and hence s. The method is used to analyse the TL glow curve of a gamma-irradiated sample from Ijero-Ekiti, Nigeria.
- Full Text:
- Date Issued: 2006
NUMSA Proposals on the APE Co-ordinating Forum.
- NUMSA
- Authors: NUMSA
- Date: Jan 1996
- Subjects: NUMSA
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/134850 , vital:37210
- Description: Managament/employee consultative committees are an important tool for improving plant productivity, increasing employee involvement In decision making and preventing Industrial disputes. Properly structured they are the basic building block of productivity. Consultation, worker participation, co-ordinating forums and so on are ail variations on the Idea of establishing forums composed of management and labour to discuss a broader range of issues than "traditional" industrial relations. NUMSA believes that it is^neither side long term interest to establish a Coordinating Forum that is not directly connected to the House Agreement negotiations.
- Full Text:
- Date Issued: Jan 1996
- Authors: NUMSA
- Date: Jan 1996
- Subjects: NUMSA
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/134850 , vital:37210
- Description: Managament/employee consultative committees are an important tool for improving plant productivity, increasing employee involvement In decision making and preventing Industrial disputes. Properly structured they are the basic building block of productivity. Consultation, worker participation, co-ordinating forums and so on are ail variations on the Idea of establishing forums composed of management and labour to discuss a broader range of issues than "traditional" industrial relations. NUMSA believes that it is^neither side long term interest to establish a Coordinating Forum that is not directly connected to the House Agreement negotiations.
- Full Text:
- Date Issued: Jan 1996
Computerized Cataloguing: INF 323
- Chitsamatanga, N, Ondari-Okemwa, E
- Authors: Chitsamatanga, N , Ondari-Okemwa, E
- Date: 2012-01
- Language: English
- Type: Examination paper
- Identifier: vital:18027 , http://hdl.handle.net/10353/d1010611
- Description: Computerized Cataloguing: INF 323, supplementary degree examination January 2012.
- Full Text: false
- Date Issued: 2012-01
- Authors: Chitsamatanga, N , Ondari-Okemwa, E
- Date: 2012-01
- Language: English
- Type: Examination paper
- Identifier: vital:18027 , http://hdl.handle.net/10353/d1010611
- Description: Computerized Cataloguing: INF 323, supplementary degree examination January 2012.
- Full Text: false
- Date Issued: 2012-01
English Method 2: EDL 222
- Authors: Botha, E K , Mdaka, V N
- Date: 2012-01
- Language: English
- Type: Examination paper
- Identifier: vital:18307 , http://hdl.handle.net/10353/d1011416
- Description: English Method 2: EDL 222, supplementary examinations January 2012.
- Full Text: false
- Date Issued: 2012-01
- Authors: Botha, E K , Mdaka, V N
- Date: 2012-01
- Language: English
- Type: Examination paper
- Identifier: vital:18307 , http://hdl.handle.net/10353/d1011416
- Description: English Method 2: EDL 222, supplementary examinations January 2012.
- Full Text: false
- Date Issued: 2012-01
Rhodes University 2007 Graduation Ceremonies Address
- Authors: Badat, Saleem
- Date: 2007
- Subjects: Rhodes University
- Language: English
- Type: Text
- Identifier: vital:7628 , http://hdl.handle.net/10962/d1012595
- Full Text:
- Date Issued: 2007
- Authors: Badat, Saleem
- Date: 2007
- Subjects: Rhodes University
- Language: English
- Type: Text
- Identifier: vital:7628 , http://hdl.handle.net/10962/d1012595
- Full Text:
- Date Issued: 2007
China-Africa relations: research approaches
- Authors: Simbao, Ruth K
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147503 , vital:38644 , https://doi.org/10.1162/afar.2012.45.2.1
- Description: About to board a plane in Johannesburg, I handed my temporary boarding pass to the flight attendant who exclaimed,“Simbao, you have a fong kong boarding pass!” Fong kong is a slang term used in South Africa meaning fake, cheap, or low quality and is often associated with Chinese imports. In this case, the term was used to refer to a temporary pass issued earlier on my journey that needed to be replaced with a new boarding pass in Johannesburg.
- Full Text:
- Date Issued: 2012
- Authors: Simbao, Ruth K
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147503 , vital:38644 , https://doi.org/10.1162/afar.2012.45.2.1
- Description: About to board a plane in Johannesburg, I handed my temporary boarding pass to the flight attendant who exclaimed,“Simbao, you have a fong kong boarding pass!” Fong kong is a slang term used in South Africa meaning fake, cheap, or low quality and is often associated with Chinese imports. In this case, the term was used to refer to a temporary pass issued earlier on my journey that needed to be replaced with a new boarding pass in Johannesburg.
- Full Text:
- Date Issued: 2012