14th South African Marine Science Symposium/49th Estuarine and Coastal Sciences Association International Conference: welcome & opening
- Authors: Badat, Saleem
- Date: 2011-04-04
- Language: English
- Type: Text
- Identifier: vital:7806 , http://hdl.handle.net/10962/d1015999
- Full Text:
- Date Issued: 2011-04-04
- Authors: Badat, Saleem
- Date: 2011-04-04
- Language: English
- Type: Text
- Identifier: vital:7806 , http://hdl.handle.net/10962/d1015999
- Full Text:
- Date Issued: 2011-04-04
1820 Settler ship "Chapman"
- Subjects: British Settlers of 1820 (South Africa) -- Photographs , Chapman (Ship)
- Type: Image
- Identifier: vital:14001 , http://hdl.handle.net/10962/d1017568 , CD 55 , MS 10 542 , PIC/SL 4804
- Description: Photograph of a painting of the "Chapman", The original frame has an inscription: Trasport (sic) Chapman. John Milbank Master _ 558 Tons.
- Full Text: false
- Subjects: British Settlers of 1820 (South Africa) -- Photographs , Chapman (Ship)
- Type: Image
- Identifier: vital:14001 , http://hdl.handle.net/10962/d1017568 , CD 55 , MS 10 542 , PIC/SL 4804
- Description: Photograph of a painting of the "Chapman", The original frame has an inscription: Trasport (sic) Chapman. John Milbank Master _ 558 Tons.
- Full Text: false
1968: SASO and the Revival of Black Political Opposition
- Authors: Badat, Saleem
- Date: 2011-09-05
- Language: English
- Type: Text
- Identifier: vital:7812 , http://hdl.handle.net/10962/d1016005
- Full Text:
- Date Issued: 2011-09-05
- Authors: Badat, Saleem
- Date: 2011-09-05
- Language: English
- Type: Text
- Identifier: vital:7812 , http://hdl.handle.net/10962/d1016005
- Full Text:
- Date Issued: 2011-09-05
1975 SAU Baseball Tournament
- Authors: Henderson, Derek Scott
- Language: English
- Type: Text
- Identifier: vital:7334 , http://hdl.handle.net/10962/d1017062
- Full Text:
- Authors: Henderson, Derek Scott
- Language: English
- Type: Text
- Identifier: vital:7334 , http://hdl.handle.net/10962/d1017062
- Full Text:
1st Annual DST/Mintek Nanotechnology Innovation Centre - Sensors Workshop Grahamstown, 11th & 12th September 2008
- Authors: Nyokong, Tebello
- Identifier: vital:7228 , http://hdl.handle.net/10962/d1006043
- Description: 1st Annual DST/Mintek Nanotechnology Innovation Centre - Sensors Workshop Grahamstown, 11th & 12th September 2008
- Full Text: false
- Authors: Nyokong, Tebello
- Identifier: vital:7228 , http://hdl.handle.net/10962/d1006043
- Description: 1st Annual DST/Mintek Nanotechnology Innovation Centre - Sensors Workshop Grahamstown, 11th & 12th September 2008
- Full Text: false
2008 Rhodes University graduation ceremonies address
- Authors: Badat, Saleem
- Date: 2008-03-27
- Language: English
- Type: Text
- Identifier: vital:7669 , http://hdl.handle.net/10962/d1015814
- Full Text:
- Date Issued: 2008-03-27
- Authors: Badat, Saleem
- Date: 2008-03-27
- Language: English
- Type: Text
- Identifier: vital:7669 , http://hdl.handle.net/10962/d1015814
- Full Text:
- Date Issued: 2008-03-27
2009 L'Oreal-UNESCO Award for Women in Science: Africa-Arab State
- Language: English
- Type: Article
- Identifier: vital:7190 , http://hdl.handle.net/10962/d1006354
- Description: Old Rhodians in the news
- Full Text:
- Language: English
- Type: Article
- Identifier: vital:7190 , http://hdl.handle.net/10962/d1006354
- Description: Old Rhodians in the news
- Full Text:
2009 Rhodes University Graduation ceremonies address
- Authors: Badat, Saleem
- Date: 2009-04-16
- Subjects: Rhodes University
- Language: English
- Type: Text
- Identifier: vital:7744 , http://hdl.handle.net/10962/d1015892
- Full Text:
- Date Issued: 2009-04-16
- Authors: Badat, Saleem
- Date: 2009-04-16
- Subjects: Rhodes University
- Language: English
- Type: Text
- Identifier: vital:7744 , http://hdl.handle.net/10962/d1015892
- Full Text:
- Date Issued: 2009-04-16
2009/2010 CEO (Celebrating excellence in organisations) Most Influential Women in Business and Government (MIW) in the Education and Teaching Sector
- Authors: Rhodes University
- Subjects: Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7178 , http://hdl.handle.net/10962/d1006184 , Nyokong, Tebello
- Description: Professor Tebello Nyokong was awarded the 2009/2010 CEO (Celebrating excellence in organisations) Most Influential Women in Business and Government (MIW) in the Education and Teaching Sector and was named as a runner-up in the Quality of Life category of the Department of Science and Technology's (DST) 2009 Distinguished Woman Scientist Award. Holding a DST/NRF South African Research Chairs Initiative Chair in Medicinal Chemistry and Nanotechnology, she is also the Director of the DST/Mintek Nanotechnology Innovation Centre (NIC) for Sensors. Her pioneering research into photodynamic therapy to harness light for cancer therapy and the early detection of human diseases and environmental clean-up continues to draw attention for more reasons than are immediately apparent.
- Full Text:
- Authors: Rhodes University
- Subjects: Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7178 , http://hdl.handle.net/10962/d1006184 , Nyokong, Tebello
- Description: Professor Tebello Nyokong was awarded the 2009/2010 CEO (Celebrating excellence in organisations) Most Influential Women in Business and Government (MIW) in the Education and Teaching Sector and was named as a runner-up in the Quality of Life category of the Department of Science and Technology's (DST) 2009 Distinguished Woman Scientist Award. Holding a DST/NRF South African Research Chairs Initiative Chair in Medicinal Chemistry and Nanotechnology, she is also the Director of the DST/Mintek Nanotechnology Innovation Centre (NIC) for Sensors. Her pioneering research into photodynamic therapy to harness light for cancer therapy and the early detection of human diseases and environmental clean-up continues to draw attention for more reasons than are immediately apparent.
- Full Text:
23rd Annual Congress of the New Testament Society of South Africa dinner
- Authors: Henderson, Derek Scott
- Date: 1987-04-23
- Language: English
- Type: Text
- Identifier: vital:7559 , http://hdl.handle.net/10962/d1018436
- Description: Welcome address by Dr D.S. Henderson, at the 23rd Annual Congress of the New Testament Society of South Africa dinner event.
- Full Text:
- Date Issued: 1987-04-23
- Authors: Henderson, Derek Scott
- Date: 1987-04-23
- Language: English
- Type: Text
- Identifier: vital:7559 , http://hdl.handle.net/10962/d1018436
- Description: Welcome address by Dr D.S. Henderson, at the 23rd Annual Congress of the New Testament Society of South Africa dinner event.
- Full Text:
- Date Issued: 1987-04-23
300 grams
- Authors: Ainslie, Michelle
- Date: 2020
- Subjects: South African fiction (English) -- 21st century
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/140597 , vital:37903
- Description: This document consists of two (2) parts:Part A: Thesis (Creative Work)Part B: Portfolio.
- Full Text:
- Date Issued: 2020
- Authors: Ainslie, Michelle
- Date: 2020
- Subjects: South African fiction (English) -- 21st century
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/140597 , vital:37903
- Description: This document consists of two (2) parts:Part A: Thesis (Creative Work)Part B: Portfolio.
- Full Text:
- Date Issued: 2020
5-hydroxytryptamine and sexual behaviour in rhesus monkeys
- Authors: Gradwell, Peter Bertram
- Date: 1976
- Subjects: Rhesus monkey -- Behavior Sexual behavior in animals
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3210 , http://hdl.handle.net/10962/d1012086
- Description: Selective inhibition of 5-hydroxytryptamine by parachlorophenylalanine (PCPA) is able to restore sexual receptivity in female rhesus monkeys made unreceptive by bilateral adrenalectomy. PCPA in the doses used reduces the levels of 5-hydroxyindoleacetic acid (5HIAA) in the cerebrospinal fluid to 40 per cent of the normal oestradioltreated condition. Both the increased sexual receptivity and the lowered 5HIAA levels "in the CSF are in turn reversed by 5-hydroxytryptophal (5HTP), the irrmediate precursor of 5HT and the substance whose synthesis is inhibited by PCPA. 5HTP on its own reduces sexual receptivity and increases 5HIAA levels in the CSF of ovariectomised, oestradiol-treated (but otherwise intact) female rhesus monkeys. A substance other than an adrenal androgen has therefore been shown to restore sexual receptivity in adrenalectomised female monkeys . Testosterone propionate and oestradiol benzoate both lower the turnover rates of 5HT in the brains of ovariectomised female monkeys, as measured by the 2 hour probenecid test. Taken together, these findings suggest that adrenal androgens could act on specific sites in the female monkey brain via 5HT-containing neural systems, to control (or at least influence) sexual receptivity. All the results of administering oestradiol to ovariectomised monkeys in these experiments are consistent with the established roles of this hormone in female sexual attractiveness and in the gonadotrophin- controlling systems of the hypothalamo-hypophyseal axis. In contrast to these findings on 5HT and sexual receptivity in female monkeys, no clear role for 5HT- containing neural systems could be demonstrated in the grooming, aggressive or social behaviours of female monkeys. No clear role for 5HT could be demonstrated in the refractory period following ejaculation in male monkeys , or when testosterone replacement is given to castrated male monkeys.
- Full Text:
- Date Issued: 1976
- Authors: Gradwell, Peter Bertram
- Date: 1976
- Subjects: Rhesus monkey -- Behavior Sexual behavior in animals
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3210 , http://hdl.handle.net/10962/d1012086
- Description: Selective inhibition of 5-hydroxytryptamine by parachlorophenylalanine (PCPA) is able to restore sexual receptivity in female rhesus monkeys made unreceptive by bilateral adrenalectomy. PCPA in the doses used reduces the levels of 5-hydroxyindoleacetic acid (5HIAA) in the cerebrospinal fluid to 40 per cent of the normal oestradioltreated condition. Both the increased sexual receptivity and the lowered 5HIAA levels "in the CSF are in turn reversed by 5-hydroxytryptophal (5HTP), the irrmediate precursor of 5HT and the substance whose synthesis is inhibited by PCPA. 5HTP on its own reduces sexual receptivity and increases 5HIAA levels in the CSF of ovariectomised, oestradiol-treated (but otherwise intact) female rhesus monkeys. A substance other than an adrenal androgen has therefore been shown to restore sexual receptivity in adrenalectomised female monkeys . Testosterone propionate and oestradiol benzoate both lower the turnover rates of 5HT in the brains of ovariectomised female monkeys, as measured by the 2 hour probenecid test. Taken together, these findings suggest that adrenal androgens could act on specific sites in the female monkey brain via 5HT-containing neural systems, to control (or at least influence) sexual receptivity. All the results of administering oestradiol to ovariectomised monkeys in these experiments are consistent with the established roles of this hormone in female sexual attractiveness and in the gonadotrophin- controlling systems of the hypothalamo-hypophyseal axis. In contrast to these findings on 5HT and sexual receptivity in female monkeys, no clear role for 5HT- containing neural systems could be demonstrated in the grooming, aggressive or social behaviours of female monkeys. No clear role for 5HT could be demonstrated in the refractory period following ejaculation in male monkeys , or when testosterone replacement is given to castrated male monkeys.
- Full Text:
- Date Issued: 1976
53 stitches : sustainability, ecology and social engagement in contemporary art
- Authors: Salton, Bronwen Lauren
- Date: 2013
- Subjects: Crocheting Community development -- South Africa Ecology in art
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2390 , http://hdl.handle.net/10962/d1001580
- Description: Through an exploration of both the sculptural and socially-engaged art practices undertaken in creating my Master of Fine Art exhibition, 53 Stitches, I unpack some of the possibilities pertaining to the practice of sustainability, ecology and social engagement in contemporary art. This thesis explores the history and concepts of sustainable development and what the implications are of the far-reaching global consideration of sustainability for contemporary art production. Looking at the writings of Felix Guattari’s (2000 [1989]) and Suzi Gablik’s (1992) on the effects of the economic model of capitalism on our environmental, social and mental ecologies, I discuss the necessary paradigm shift of the artists’ identity from the ‘individual self’ towards the ‘relational self’, affirming our interdependence upon our social and natural environments. With reference to the writings of Maja and Reuben Fowkes (2008), I explore the principles of sustainability in contemporary art and discuss the notion of ‘sustainability of form’ through insight into dematerialisation, recycling and the prospect of artists now becoming knowledge producers/facilitators. This is supportive of my personal exploration and experimentation with recyclable materials as a creative medium, used as a means of knowledge and skills facilitation in socially-engaged arts practice and the process of art-making as research. I refer to the sculptural and ‘painterly’ constructions of Sofi Zezmer and Mbongeni Buthelezi, respectively, as a means to elucidate a practical contextualisation of my practical work, particularly with regard to the use of plastic as a constructive medium. Looking at the works of Linda Weintraub (2006), Marnie Badham (2010) and Miwon Kwon (2002), I expand on the theoretical discourse pertaining to sociallyengaged art practices, and elucidate the reconfiguration of the role of the artist towards now becoming a cultural service administrator, organiser and knowledge facilitator. With reference to Arjen Wals and Johnson et al., I further discuss the role of education in sustainability and explore the necessary reconciliation between university institutions and the social and environmental context in which they are located, in the form of place-based capacity building and service learning. I explore within this thesis the concepts and processbased research of my own sculptures
- Full Text:
- Date Issued: 2013
- Authors: Salton, Bronwen Lauren
- Date: 2013
- Subjects: Crocheting Community development -- South Africa Ecology in art
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2390 , http://hdl.handle.net/10962/d1001580
- Description: Through an exploration of both the sculptural and socially-engaged art practices undertaken in creating my Master of Fine Art exhibition, 53 Stitches, I unpack some of the possibilities pertaining to the practice of sustainability, ecology and social engagement in contemporary art. This thesis explores the history and concepts of sustainable development and what the implications are of the far-reaching global consideration of sustainability for contemporary art production. Looking at the writings of Felix Guattari’s (2000 [1989]) and Suzi Gablik’s (1992) on the effects of the economic model of capitalism on our environmental, social and mental ecologies, I discuss the necessary paradigm shift of the artists’ identity from the ‘individual self’ towards the ‘relational self’, affirming our interdependence upon our social and natural environments. With reference to the writings of Maja and Reuben Fowkes (2008), I explore the principles of sustainability in contemporary art and discuss the notion of ‘sustainability of form’ through insight into dematerialisation, recycling and the prospect of artists now becoming knowledge producers/facilitators. This is supportive of my personal exploration and experimentation with recyclable materials as a creative medium, used as a means of knowledge and skills facilitation in socially-engaged arts practice and the process of art-making as research. I refer to the sculptural and ‘painterly’ constructions of Sofi Zezmer and Mbongeni Buthelezi, respectively, as a means to elucidate a practical contextualisation of my practical work, particularly with regard to the use of plastic as a constructive medium. Looking at the works of Linda Weintraub (2006), Marnie Badham (2010) and Miwon Kwon (2002), I expand on the theoretical discourse pertaining to sociallyengaged art practices, and elucidate the reconfiguration of the role of the artist towards now becoming a cultural service administrator, organiser and knowledge facilitator. With reference to Arjen Wals and Johnson et al., I further discuss the role of education in sustainability and explore the necessary reconciliation between university institutions and the social and environmental context in which they are located, in the form of place-based capacity building and service learning. I explore within this thesis the concepts and processbased research of my own sculptures
- Full Text:
- Date Issued: 2013
75th anniversary: Chartered Institute of Secretaries and Administrators
- Authors: Henderson, Derek Scott
- Date: 1984-08-22
- Subjects: Chartered Institute of Secretaries and Administrators -- South Africa
- Language: English
- Type: Text
- Identifier: vital:7468 , http://hdl.handle.net/10962/d1018345
- Full Text:
- Date Issued: 1984-08-22
- Authors: Henderson, Derek Scott
- Date: 1984-08-22
- Subjects: Chartered Institute of Secretaries and Administrators -- South Africa
- Language: English
- Type: Text
- Identifier: vital:7468 , http://hdl.handle.net/10962/d1018345
- Full Text:
- Date Issued: 1984-08-22
[iLahleko - Loss]
- Authors: Qhali, Itumeleng
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , Xhosa poetry 21st century , South African poetry (English) 21st century , Short stories, South African (English) 21st century , Loss (Psychology) in literature , Poetry History and criticism , Bilingual authors , Bilingualism and literature , Bilingualism in literature
- Language: English , Xhosa
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191825 , vital:45169
- Description: My thesis is a collection of poems and prose that explores the disjunction of losses for women and children across the two languages I inhabit, isiXhosa and English. Ukulahlekelwa lithemba, ukudukelwa yingqondo, ukholo, ubuwena, umzimba nothando. For me, isiXhosa captures the innate musicality and deep emotions within a word or a sound that are not available in English. On the other hand, English readily produces visceral images that are more difficult for me to access in isiXhosa. Kolu phononongo ndikwasebenzisa namagama emboleko ukuze ndikhulise isigama. Ndisebenzisa amagama azibeka zinjalo iimvakalelo, angqalileyo kuncwadi lwesiXhosa. Ndisebenzisa zombini ilyric form kunye neprozi ngenxa yesingqi esiphuhliswa yilyric, nangenxa yenkululeko umbali ayifumanayo kwiprozi. As a bilingual writer ndifuthelwe sisingqi nobunzulu bentlungu obufumaneka in the translated and bilingual works of Isabella Motadinyane, noMarina Ivanovna Tsvetaeva, imibongo yeDaikwan eguqulwe nguStephen Watson ethi Song of the Broken String; iimbongi zespanish ezinjengo Antonia Machado; ngendlela abasebenzisa ngayo ulwimi lwabo ukunabisa nokugqithisa umyalezo ngeentlungu abadibana nazo, bakwanaso nesingqi somculo othuthuzelayo kwimibongo yabo. The structure of my thesis is inspired by the innovative mixed genre layout of Sindiswa Busuku-Mathese’s Loud and Yellow Laughter, and the new formats of isiXhosa writing presented in Mthunzikazi Mbugwana’s poetry. My work has also been shaped by the visceral imagery and briefly captured moments of loss in imisebenzi ka S.S Mema, Nontsizi Mgqwetho, noPascale Petit, novangile gantsho. Imisebenzi yabo ikuzobela umfanekiso ngqondweni ophilayo. Bonke abababhali bahambe indlela endinika umdla nendifuna ukuyihamba nam njengombhali omtsha obhala ngeelwimi ezimbini. , My thesis is a collection of poems and prose that explores the disjunction of losses for women and children across the two languages I inhabit, isiXhosa and English. For me, isiXhosa captures the innate musicality and deep emotions within a word or a sound that are not available to me in English. On the other hand, English readily produces visceral images that are more difficult for me to find in isiXhosa. My poems use the music and introspection of the lyric form, as well as the emotional outpouring that prose poetry allows. As a bilingual writer, I am influenced by the transference of musicality and gravity of loss conveyed in the translated and bilingual work of Isabella Motadinyane, the Russian Marina Tsvetaeva, Stephen Watson’s Song of the Broken String, as well as the Spanish poets Antonio Machado. The structure of my thesis is inspired by the innovative mixed genre layout of Sindiswa Busuku-Mathese’s Loud and Yellow Laughter, and the new formats of isiXhosa writing presented in Mthunzikazi Mbugwana’s poetry. My work has also been shaped by the visceral imagery and briefly captured moments of loss in the work of South African poets vangile gantsho, S.S. Mema, and Nontsizi Mgqwetho, as well as the English poet, Pascale Petit. , Thesis (MA) -- Faculty of Humanitites, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Qhali, Itumeleng
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , Xhosa poetry 21st century , South African poetry (English) 21st century , Short stories, South African (English) 21st century , Loss (Psychology) in literature , Poetry History and criticism , Bilingual authors , Bilingualism and literature , Bilingualism in literature
- Language: English , Xhosa
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191825 , vital:45169
- Description: My thesis is a collection of poems and prose that explores the disjunction of losses for women and children across the two languages I inhabit, isiXhosa and English. Ukulahlekelwa lithemba, ukudukelwa yingqondo, ukholo, ubuwena, umzimba nothando. For me, isiXhosa captures the innate musicality and deep emotions within a word or a sound that are not available in English. On the other hand, English readily produces visceral images that are more difficult for me to access in isiXhosa. Kolu phononongo ndikwasebenzisa namagama emboleko ukuze ndikhulise isigama. Ndisebenzisa amagama azibeka zinjalo iimvakalelo, angqalileyo kuncwadi lwesiXhosa. Ndisebenzisa zombini ilyric form kunye neprozi ngenxa yesingqi esiphuhliswa yilyric, nangenxa yenkululeko umbali ayifumanayo kwiprozi. As a bilingual writer ndifuthelwe sisingqi nobunzulu bentlungu obufumaneka in the translated and bilingual works of Isabella Motadinyane, noMarina Ivanovna Tsvetaeva, imibongo yeDaikwan eguqulwe nguStephen Watson ethi Song of the Broken String; iimbongi zespanish ezinjengo Antonia Machado; ngendlela abasebenzisa ngayo ulwimi lwabo ukunabisa nokugqithisa umyalezo ngeentlungu abadibana nazo, bakwanaso nesingqi somculo othuthuzelayo kwimibongo yabo. The structure of my thesis is inspired by the innovative mixed genre layout of Sindiswa Busuku-Mathese’s Loud and Yellow Laughter, and the new formats of isiXhosa writing presented in Mthunzikazi Mbugwana’s poetry. My work has also been shaped by the visceral imagery and briefly captured moments of loss in imisebenzi ka S.S Mema, Nontsizi Mgqwetho, noPascale Petit, novangile gantsho. Imisebenzi yabo ikuzobela umfanekiso ngqondweni ophilayo. Bonke abababhali bahambe indlela endinika umdla nendifuna ukuyihamba nam njengombhali omtsha obhala ngeelwimi ezimbini. , My thesis is a collection of poems and prose that explores the disjunction of losses for women and children across the two languages I inhabit, isiXhosa and English. For me, isiXhosa captures the innate musicality and deep emotions within a word or a sound that are not available to me in English. On the other hand, English readily produces visceral images that are more difficult for me to find in isiXhosa. My poems use the music and introspection of the lyric form, as well as the emotional outpouring that prose poetry allows. As a bilingual writer, I am influenced by the transference of musicality and gravity of loss conveyed in the translated and bilingual work of Isabella Motadinyane, the Russian Marina Tsvetaeva, Stephen Watson’s Song of the Broken String, as well as the Spanish poets Antonio Machado. The structure of my thesis is inspired by the innovative mixed genre layout of Sindiswa Busuku-Mathese’s Loud and Yellow Laughter, and the new formats of isiXhosa writing presented in Mthunzikazi Mbugwana’s poetry. My work has also been shaped by the visceral imagery and briefly captured moments of loss in the work of South African poets vangile gantsho, S.S. Mema, and Nontsizi Mgqwetho, as well as the English poet, Pascale Petit. , Thesis (MA) -- Faculty of Humanitites, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
[Research projects]
- Authors: Muluse, Lungile J
- Date: 2001
- Subjects: History -- Study and teaching -- South Africa -- Textbooks -- Evaluation History -- Study and teaching South Africa -- History -- Textbooks Toise Senior Secondary School High schools -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1739 , http://hdl.handle.net/10962/d1003623
- Description: This study is a situational analysis of a school located at Nonkcampa village, just ten kilometres from King William’s Town, west of the national road between Peddie and King William’s Town. Toise Senior Secondary School is in the former Ciskei region. The Bulembu / Bisho airport is just next to our school. My focus on Toise Senior Secondary School, provides me as the principal of the school with a golden opportunity to find out more about the school. As a relative newcomer to the school this study also enables me to look at the school community, from this particular focal point. As this is a situational analysis, my focus will be on the history, the biophysical and socio-political aspects that influenced the development of the school to the present. In this way I will be able to analyse the school’s readiness to implement the new Out-Comes-Based Education (OBE) Curriculum soon to be implemented at secondary school level.
- Full Text:
- Date Issued: 2001
- Authors: Muluse, Lungile J
- Date: 2001
- Subjects: History -- Study and teaching -- South Africa -- Textbooks -- Evaluation History -- Study and teaching South Africa -- History -- Textbooks Toise Senior Secondary School High schools -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1739 , http://hdl.handle.net/10962/d1003623
- Description: This study is a situational analysis of a school located at Nonkcampa village, just ten kilometres from King William’s Town, west of the national road between Peddie and King William’s Town. Toise Senior Secondary School is in the former Ciskei region. The Bulembu / Bisho airport is just next to our school. My focus on Toise Senior Secondary School, provides me as the principal of the school with a golden opportunity to find out more about the school. As a relative newcomer to the school this study also enables me to look at the school community, from this particular focal point. As this is a situational analysis, my focus will be on the history, the biophysical and socio-political aspects that influenced the development of the school to the present. In this way I will be able to analyse the school’s readiness to implement the new Out-Comes-Based Education (OBE) Curriculum soon to be implemented at secondary school level.
- Full Text:
- Date Issued: 2001
A 150 MHz all sky survey with the Precision Array to Probe the Epoch of Reionization
- Authors: Chege, James Kariuki
- Date: 2020
- Subjects: Epoch of reionization -- Research , Astronomy -- Observations , Radio interferometers
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/117733 , vital:34556
- Description: The Precision Array to Probe the Epoch of Reionization (PAPER) was built to measure the redshifted 21 cm line of hydrogen from cosmic reionization. Such low frequency observations promise to be the best means of understanding the cosmic dawn; when the first galaxies in the universe formed, and also the Epoch of Reionization; when the intergalactic medium changed from neutral to ionized. The major challenges to these observations is the presence of astrophysical foregrounds that are much brighter than the cosmological signal. Here, I present an all-sky survey at 150 MHz obtained from the analysis of 300 hours of PAPER observations. Particular focus is given to the calibration and imaging techniques that need to deal with the wide field of view of a non-tracking instrument. The survey covers ~ 7000 square degrees of the southern sky. From a sky area of 4400 square degrees out of the total survey area, I extract a catalogue of sources brighter than 4 Jy whose accuracy was tested against the published GLEAM catalogue, leading to a fractional difference rms better than 20%. The catalogue provides an all-sky accurate model of the extragalactic foreground to be used for the calibration of future Epoch of Reionization observations and to be subtracted from the PAPER observations themselves in order to mitigate the foreground contamination.
- Full Text:
- Date Issued: 2020
- Authors: Chege, James Kariuki
- Date: 2020
- Subjects: Epoch of reionization -- Research , Astronomy -- Observations , Radio interferometers
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/117733 , vital:34556
- Description: The Precision Array to Probe the Epoch of Reionization (PAPER) was built to measure the redshifted 21 cm line of hydrogen from cosmic reionization. Such low frequency observations promise to be the best means of understanding the cosmic dawn; when the first galaxies in the universe formed, and also the Epoch of Reionization; when the intergalactic medium changed from neutral to ionized. The major challenges to these observations is the presence of astrophysical foregrounds that are much brighter than the cosmological signal. Here, I present an all-sky survey at 150 MHz obtained from the analysis of 300 hours of PAPER observations. Particular focus is given to the calibration and imaging techniques that need to deal with the wide field of view of a non-tracking instrument. The survey covers ~ 7000 square degrees of the southern sky. From a sky area of 4400 square degrees out of the total survey area, I extract a catalogue of sources brighter than 4 Jy whose accuracy was tested against the published GLEAM catalogue, leading to a fractional difference rms better than 20%. The catalogue provides an all-sky accurate model of the extragalactic foreground to be used for the calibration of future Epoch of Reionization observations and to be subtracted from the PAPER observations themselves in order to mitigate the foreground contamination.
- Full Text:
- Date Issued: 2020
A 22 GHz radio telescope
- Authors: Mutch, Laurence Ian
- Date: 1976
- Subjects: Radio telescopes , Paraboloid , Radio astronomy
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5532 , http://hdl.handle.net/10962/d1012919
- Description: This thesis reports on the design, construction, testing and operation of the spectral line and continuum receivers built for the 22 GHz Radio Telescope. First results from 'the telescope were obtained and have been analysed to give an estimate of system efficiency. Tests have been performed on the front end and in particular on the 22 GHz mixer in order to determine the minimum detectable temperature. The Sun, Moon and major planets are sources suitable for antenna alignment and consequently a literature survey of emission at 22 GHz from elements of the Solar system has been made.
- Full Text:
- Date Issued: 1976
- Authors: Mutch, Laurence Ian
- Date: 1976
- Subjects: Radio telescopes , Paraboloid , Radio astronomy
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5532 , http://hdl.handle.net/10962/d1012919
- Description: This thesis reports on the design, construction, testing and operation of the spectral line and continuum receivers built for the 22 GHz Radio Telescope. First results from 'the telescope were obtained and have been analysed to give an estimate of system efficiency. Tests have been performed on the front end and in particular on the 22 GHz mixer in order to determine the minimum detectable temperature. The Sun, Moon and major planets are sources suitable for antenna alignment and consequently a literature survey of emission at 22 GHz from elements of the Solar system has been made.
- Full Text:
- Date Issued: 1976
A 22 GHz water maser radiometer
- Authors: Nunn, Brian J
- Date: 1975
- Subjects: Masers , Radiometers
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5535 , http://hdl.handle.net/10962/d1012987
- Description: This thesis describes the properties of interstellar water maser sources, and other sources near 22 GHz. Calculations based on manufacturer's specifications of the 22 GHz mixer, which was to be used in a water radiometer, and on the size antenna aperture of the proposed antenna aperture, show the viability of constructing such a radiometer for spectral line and continuum work. Various sections of the radiometer were constructed, including the Cassegrain feed system and its support, an intermediate frequency amplifier and buffer, a timing control unit, and a data processor. These units are part of the radiometer, which is almost ready for observations of sources.
- Full Text:
- Date Issued: 1975
- Authors: Nunn, Brian J
- Date: 1975
- Subjects: Masers , Radiometers
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5535 , http://hdl.handle.net/10962/d1012987
- Description: This thesis describes the properties of interstellar water maser sources, and other sources near 22 GHz. Calculations based on manufacturer's specifications of the 22 GHz mixer, which was to be used in a water radiometer, and on the size antenna aperture of the proposed antenna aperture, show the viability of constructing such a radiometer for spectral line and continuum work. Various sections of the radiometer were constructed, including the Cassegrain feed system and its support, an intermediate frequency amplifier and buffer, a timing control unit, and a data processor. These units are part of the radiometer, which is almost ready for observations of sources.
- Full Text:
- Date Issued: 1975
A baculovirus-mediated expression system for the analysis of HaSV RNA packaging
- Authors: Mendes, Adriano
- Date: 2012
- Subjects: RNA , Baculoviruses , Helicoverpa armigera , Plasmids
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4025 , http://hdl.handle.net/10962/d1004085 , RNA , Baculoviruses , Helicoverpa armigera , Plasmids
- Description: The Helicoverpa armigera stunt virus (HaSV) is a member of a family of small nonenveloped (+) ssRNA insect viruses currently known as the Tetraviridae. This family is unique in terms of the T=4 quasi-symmetry of its capsid particles and the unusually narrow host range and tissue tropism. Assembly of tetraviral particles has been well characterised and involves the combination of 240 copies of a single capsid precursor protein (VCap) into a procapsid followed by autoproteolytic cleavage to yield the major (β) and minor (γ) capsid subunits within the mature particle. HaSV has two genomic RNAs, RNA 1 encoding the replicase and RNA 2 encoding VCap and p17, the ORF of which lies upstream of and overlaping with the 5’ end of the VCap ORF. Prior to this study, Vlok (2009) used a plasmid expression system to study RNA packaging in HaSV VLPs assembled in Spodoptera frugiperda 9 (Sf9) cells co-expressing p17 and VCap. The study showed that the p17 ORF was required for the packaging of RNA 2 during capsid assembly but it was unclear whether p17 expression was required for packaging. In addition, expression from the transfected plasmids was sub-optimal affecting both the yield of VLPs and the detection of p17. The aim of this study was to use the plasmid system to test whether p17 expression was required for plasmid-derived VLP RNA packaging and then develop a baculovirus-mediated system to test this hypothesis. By using a plasmid in which the start codon of p17 was mutated, it was shown that p17 expression was required for RNA 2 packaging into plasmid-VLPs. For the baculovirus system, four recombinant baculoviruses based upon the pFastBac Dual expression system, were constructed. These included Bac20, expressing wild type RNA 2, Bac21, RNA 2 with p17 silenced, Bac23, RNA 2 and p17 expressed on a separate transcript and Bac24, RNA 2 with p17 silenced plus p17 expressed on a separate transcript. Assembly of VLPs was more efficient using the baculovirus expression system and p17 expression was observed in cells infected with Bac20, Bac23 and Bac24, but not Bac21. In contrast to the plasmid-VLPs, bac-VLPs did not require p17 for the encapsidation of RNA 2. In addition to RNA 2, Bac23 and Bac24 packaged the p17 mRNA transcribed separately from RNA 2. This insinuated that bac-VLPs may be packaging RNA non-selectively. It was proposed that p17 may play a role in packaging in an RNA-limiting environment (plasmid system) but functioned differently when viral RNA was in excess (baculovirus system). This data points to the importance of developing a replication system for the analysis of the packaging pathways of these viruses and this study has laid down the foundations for such a system in which RNA 1 and RNA 2 can be introduced into a single cell by means of a single recombinant virus.
- Full Text:
- Date Issued: 2012
- Authors: Mendes, Adriano
- Date: 2012
- Subjects: RNA , Baculoviruses , Helicoverpa armigera , Plasmids
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4025 , http://hdl.handle.net/10962/d1004085 , RNA , Baculoviruses , Helicoverpa armigera , Plasmids
- Description: The Helicoverpa armigera stunt virus (HaSV) is a member of a family of small nonenveloped (+) ssRNA insect viruses currently known as the Tetraviridae. This family is unique in terms of the T=4 quasi-symmetry of its capsid particles and the unusually narrow host range and tissue tropism. Assembly of tetraviral particles has been well characterised and involves the combination of 240 copies of a single capsid precursor protein (VCap) into a procapsid followed by autoproteolytic cleavage to yield the major (β) and minor (γ) capsid subunits within the mature particle. HaSV has two genomic RNAs, RNA 1 encoding the replicase and RNA 2 encoding VCap and p17, the ORF of which lies upstream of and overlaping with the 5’ end of the VCap ORF. Prior to this study, Vlok (2009) used a plasmid expression system to study RNA packaging in HaSV VLPs assembled in Spodoptera frugiperda 9 (Sf9) cells co-expressing p17 and VCap. The study showed that the p17 ORF was required for the packaging of RNA 2 during capsid assembly but it was unclear whether p17 expression was required for packaging. In addition, expression from the transfected plasmids was sub-optimal affecting both the yield of VLPs and the detection of p17. The aim of this study was to use the plasmid system to test whether p17 expression was required for plasmid-derived VLP RNA packaging and then develop a baculovirus-mediated system to test this hypothesis. By using a plasmid in which the start codon of p17 was mutated, it was shown that p17 expression was required for RNA 2 packaging into plasmid-VLPs. For the baculovirus system, four recombinant baculoviruses based upon the pFastBac Dual expression system, were constructed. These included Bac20, expressing wild type RNA 2, Bac21, RNA 2 with p17 silenced, Bac23, RNA 2 and p17 expressed on a separate transcript and Bac24, RNA 2 with p17 silenced plus p17 expressed on a separate transcript. Assembly of VLPs was more efficient using the baculovirus expression system and p17 expression was observed in cells infected with Bac20, Bac23 and Bac24, but not Bac21. In contrast to the plasmid-VLPs, bac-VLPs did not require p17 for the encapsidation of RNA 2. In addition to RNA 2, Bac23 and Bac24 packaged the p17 mRNA transcribed separately from RNA 2. This insinuated that bac-VLPs may be packaging RNA non-selectively. It was proposed that p17 may play a role in packaging in an RNA-limiting environment (plasmid system) but functioned differently when viral RNA was in excess (baculovirus system). This data points to the importance of developing a replication system for the analysis of the packaging pathways of these viruses and this study has laid down the foundations for such a system in which RNA 1 and RNA 2 can be introduced into a single cell by means of a single recombinant virus.
- Full Text:
- Date Issued: 2012