Journalism takes flight developments
- Authors: Berger, Guy J E Gough
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/455026 , vital:75397 , https://hdl.handle.net/10520/EJC139933
- Description: A kind of bird flu is back, albeit in different guise. It's afflicting millions with addiction and dizziness. It's converting otherwise sane people into an ever-expanding flock of Twitterers whizzing around like the swallows of an eve at Durban's new airport. Maybe now, as swine flu gains ground, we'll start to see the media piggies heaving into the air, leaving their pokes to be prodded on Facebook.
- Full Text:
- Authors: Berger, Guy J E Gough
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/455026 , vital:75397 , https://hdl.handle.net/10520/EJC139933
- Description: A kind of bird flu is back, albeit in different guise. It's afflicting millions with addiction and dizziness. It's converting otherwise sane people into an ever-expanding flock of Twitterers whizzing around like the swallows of an eve at Durban's new airport. Maybe now, as swine flu gains ground, we'll start to see the media piggies heaving into the air, leaving their pokes to be prodded on Facebook.
- Full Text:
Language shift in Grahamstown: A case study of selected Xhosa-speakers
- Authors: De Klerk, Vivian A
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158106 , vital:40149 , https://0-doi.org.wam.seals.ac.za/10.1515/ijsl.2000.146.87
- Description: A number of scholars (Fasold 1984; Aitchison 1991; Denison 1977; Dorian 1980; Gal 1979) have examined the issue of language maintenance and shift, trying to discover why certain languages (or language variants) sometimes replace each other among some Speakers, particularly in certain domains of linguistic behaviour under some conditions or intergroup contact. This article provides an overview of the main factors that have been identified as playing an important role in influencing language shift and then reports on the relative importance of these factors in a survey that examined the experiences and attitudes of Xhosa-speaking parents who have recently chosen to send their children to English-medium schools in Grahamstown (Eastern Cape, South Africa). The research was carried out during 1998, and the project was a multifaceted quantitative and qualitative longitudinal study involving responses to a postal questionnaire sent to all non-English parents at English-medium schools in the town, and follow-up Interviews with 26 parents.
- Full Text:
- Authors: De Klerk, Vivian A
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158106 , vital:40149 , https://0-doi.org.wam.seals.ac.za/10.1515/ijsl.2000.146.87
- Description: A number of scholars (Fasold 1984; Aitchison 1991; Denison 1977; Dorian 1980; Gal 1979) have examined the issue of language maintenance and shift, trying to discover why certain languages (or language variants) sometimes replace each other among some Speakers, particularly in certain domains of linguistic behaviour under some conditions or intergroup contact. This article provides an overview of the main factors that have been identified as playing an important role in influencing language shift and then reports on the relative importance of these factors in a survey that examined the experiences and attitudes of Xhosa-speaking parents who have recently chosen to send their children to English-medium schools in Grahamstown (Eastern Cape, South Africa). The research was carried out during 1998, and the project was a multifaceted quantitative and qualitative longitudinal study involving responses to a postal questionnaire sent to all non-English parents at English-medium schools in the town, and follow-up Interviews with 26 parents.
- Full Text:
Local Knowledge as a Source of Community Resilience: IKS community Development and Resilience
- Shava, Soul, Zazu, Clayton, Tidball, Keith, O'Donoghue, Rob B
- Authors: Shava, Soul , Zazu, Clayton , Tidball, Keith , O'Donoghue, Rob B
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/433052 , vital:72928 , xlink:href="https://hdl.handle.net/10520/EJC61567"
- Description: Local knowledge can serve a source of local community resilience that provides an enabling capacity for people to sustain their livelihoods and adapt to environmental changes or new environments. This knowledge was evidenced as capable of resurfacing when contingent opportunities arise. This contribution draws upon case studies of emerging self-mobilised social learning processes in the recollection and application of agricultural knowledge as revealed in immigrant gardeners' narratives in New York City, United States and narratives from relocated farming communities in Sebakwe, Zimbabwe. In these narratives the communities draw upon their reserves of local knowledge to respond to changes within their local environments. Such knowledge can serve as a source of community resilience through enabling people to sustain their livelihoods and community wellbeing, and thus adapt to environmental changes and displacement.
- Full Text:
- Authors: Shava, Soul , Zazu, Clayton , Tidball, Keith , O'Donoghue, Rob B
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/433052 , vital:72928 , xlink:href="https://hdl.handle.net/10520/EJC61567"
- Description: Local knowledge can serve a source of local community resilience that provides an enabling capacity for people to sustain their livelihoods and adapt to environmental changes or new environments. This knowledge was evidenced as capable of resurfacing when contingent opportunities arise. This contribution draws upon case studies of emerging self-mobilised social learning processes in the recollection and application of agricultural knowledge as revealed in immigrant gardeners' narratives in New York City, United States and narratives from relocated farming communities in Sebakwe, Zimbabwe. In these narratives the communities draw upon their reserves of local knowledge to respond to changes within their local environments. Such knowledge can serve as a source of community resilience through enabling people to sustain their livelihoods and community wellbeing, and thus adapt to environmental changes and displacement.
- Full Text:
Making familiar the unfamiliar: doing better journalism
- Authors: Gess, Harold
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/455074 , vital:75400 , https://hdl.handle.net/10520/EJC139907
- Description: Photographic souvenir books of towns and cities around the world were very popular during the late 19th and early 20th centuries. These vol-umes, printed to a high standard and bound in a superior quality bind-ing, showed off commercial and civic buildings, churches, schools and views of the surrounding natural environment. Grocott and Sherry, a firm of Grahamstown printers and publishers, published a number of these souvenirs of Grahamstown, the last one appearing in 1898. Earli-er this year an exhibition was mounted in Grahamstown's Albany Mu-seum to celebrate 140 years since the founding of the Grocott's Mail, a newspaper published until 2003 by the firm of Grocott and Sherry and since then owned and operated by the Rhodes University School of Journalism and Media Studies.
- Full Text:
- Authors: Gess, Harold
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/455074 , vital:75400 , https://hdl.handle.net/10520/EJC139907
- Description: Photographic souvenir books of towns and cities around the world were very popular during the late 19th and early 20th centuries. These vol-umes, printed to a high standard and bound in a superior quality bind-ing, showed off commercial and civic buildings, churches, schools and views of the surrounding natural environment. Grocott and Sherry, a firm of Grahamstown printers and publishers, published a number of these souvenirs of Grahamstown, the last one appearing in 1898. Earli-er this year an exhibition was mounted in Grahamstown's Albany Mu-seum to celebrate 140 years since the founding of the Grocott's Mail, a newspaper published until 2003 by the firm of Grocott and Sherry and since then owned and operated by the Rhodes University School of Journalism and Media Studies.
- Full Text:
Making the Invisible Visible: Ameliorating Poverty through Natural Resource Commercialisation
- Authors: Shackleton, Sheona E
- Date: 2009
- Language: English
- Type: text
- Identifier: vital:6618 , http://hdl.handle.net/10962/d1016226
- Description: [From Introduction] The majority of households in South Africa, especially those in the rural communal areas, live in abject poverty. Some 70% of rural households can be classified as poor, while 18-24% fall into the chronically poor category. Unlike many other developing nations, South Africa's rural communal areas are characterised by relatively poor availability of agricultural land, with only about 40% of rural households involved in field cropping. This results in high levels of integration and dependence on the cash economy. Unemployment levels are amongst the highest in the world at about 30%. Unemployment amongst women tends to be greater than amongst men resulting in a poverty rate amongst rural female-headed households of over 60%; double that of male-headed households. The scourge of HIV/AIDS is devastating already poor households' ability to cope. More than half of HIV/AIDS affected households have insufficient food (UNDP 2003). Impacts of the pandemic include not only the loss of income, but also increased expenditure particularly on medical care and funerals. The need to care for ill household members or orphaned children also limits the choices of occupation that other household members can pursue, and may restrict labour availability for food production. Household assets are often sold for cash eroding the few safety nets people have. HIV/AIDS is expected to contribute to a chronic impoverishment of 26-33% more households than would be the case in its absence (Aliber 2003). , Endnote: This policy brief is based on the original brief made available for a workshop in August 2006. It is derived, amongst other sources, from the findings of nine case studies of local natural resource commercialisation undertaken as part of a project funded by the South Africa-Netherlands Programme on Alternatives in Development (SANPAD), BP South Africa and the National Research Foundation (NRF). Case studies on woodcraft, furniture production, weaving, broom production and the sale of wild foods and traditional marula beer were completed by Zwoitwa Makhado (UWC), Sibongile Mavimbela (Rhodes), Taryn Pereira (Rhodes), Sheona Shackleton (Rhodes) and Jabulile Sithole (WSU). CIFOR with support from SIDA, provided the funding to share these findings with key stakeholders. The opinions expressed in these policy briefs are those of the author and research team and should not necessarily be attributed to funders and partner institutions.
- Full Text:
- Authors: Shackleton, Sheona E
- Date: 2009
- Language: English
- Type: text
- Identifier: vital:6618 , http://hdl.handle.net/10962/d1016226
- Description: [From Introduction] The majority of households in South Africa, especially those in the rural communal areas, live in abject poverty. Some 70% of rural households can be classified as poor, while 18-24% fall into the chronically poor category. Unlike many other developing nations, South Africa's rural communal areas are characterised by relatively poor availability of agricultural land, with only about 40% of rural households involved in field cropping. This results in high levels of integration and dependence on the cash economy. Unemployment levels are amongst the highest in the world at about 30%. Unemployment amongst women tends to be greater than amongst men resulting in a poverty rate amongst rural female-headed households of over 60%; double that of male-headed households. The scourge of HIV/AIDS is devastating already poor households' ability to cope. More than half of HIV/AIDS affected households have insufficient food (UNDP 2003). Impacts of the pandemic include not only the loss of income, but also increased expenditure particularly on medical care and funerals. The need to care for ill household members or orphaned children also limits the choices of occupation that other household members can pursue, and may restrict labour availability for food production. Household assets are often sold for cash eroding the few safety nets people have. HIV/AIDS is expected to contribute to a chronic impoverishment of 26-33% more households than would be the case in its absence (Aliber 2003). , Endnote: This policy brief is based on the original brief made available for a workshop in August 2006. It is derived, amongst other sources, from the findings of nine case studies of local natural resource commercialisation undertaken as part of a project funded by the South Africa-Netherlands Programme on Alternatives in Development (SANPAD), BP South Africa and the National Research Foundation (NRF). Case studies on woodcraft, furniture production, weaving, broom production and the sale of wild foods and traditional marula beer were completed by Zwoitwa Makhado (UWC), Sibongile Mavimbela (Rhodes), Taryn Pereira (Rhodes), Sheona Shackleton (Rhodes) and Jabulile Sithole (WSU). CIFOR with support from SIDA, provided the funding to share these findings with key stakeholders. The opinions expressed in these policy briefs are those of the author and research team and should not necessarily be attributed to funders and partner institutions.
- Full Text:
Management, Processing and Analysis of Cryptographic Network Protocols
- Cowie, Bradley, Irwin, Barry V W, Barnett, Richard J
- Authors: Cowie, Bradley , Irwin, Barry V W , Barnett, Richard J
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428687 , vital:72529 , https://d1wqtxts1xzle7.cloudfront.net/30968790/ISSA2009Proceedings-libre.pdf?1393060231=andresponse-content-disposi-tion=inline%3B+filename%3DAN_ANALYSIS_OF_AUTHENTICATION_FOR_PASSIV.pdfandExpires=1714732172andSignature=Ei8RhR2pCSUNGCNE40DugEyFamcyTxPuuRq9gslD~WGlNqPEgG3FL7VFRQCKXhZBWyAfGRjMtBmNDJ7Sjsgex12WxW9Fj8XdpB7Bfz23FuLc-t2YRM-2joKOHJQLxWJlfZiOzxDvVGZeM3zCHj~f3NUeY1~n6PtVtLzNdL8glIg5dzDTTIE6ms2YlxmnO6JvlzQwOWdHaUbHsZzMGOV19UPtBk-UJzHSq3NRyPe4-XNZQLNK-mEEcMGsLk6nkyXIsW2QJ7gtKW1nNkr6EMkAGSOnDai~pSqzb2imspMnlPRigAPPISrNHO79rP51H9bu1WvbRZv1KVkGvM~sRmfl28A__andKey-Pair-Id=APKAJLOHF5GGSLRBV4ZA#page=499
- Description: The use of cryptographic protocols as a means to provide security to web servers and services at the transport layer, by providing both en-cryption and authentication to data transfer, has become increasingly popular. However, we note that it is rather difficult to perform legitimate analysis, intrusion detection and debugging on cryptographic protocols, as the data that passes through is encrypted. In this paper we assume that we have legitimate access to the data and that we have the private key used in transactions and thus we will be able decrypt the data. The objective is to produce a suitable application framework that allows for easy recovery and secure storage of cryptographic keys; including ap-propriate tools to decapsulate traffic and to decrypt live packet streams or precaptured traffic contained in PCAP files. The resultant processing will then be able to provide a clear-text stream which can be used for further analysis.
- Full Text:
- Authors: Cowie, Bradley , Irwin, Barry V W , Barnett, Richard J
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428687 , vital:72529 , https://d1wqtxts1xzle7.cloudfront.net/30968790/ISSA2009Proceedings-libre.pdf?1393060231=andresponse-content-disposi-tion=inline%3B+filename%3DAN_ANALYSIS_OF_AUTHENTICATION_FOR_PASSIV.pdfandExpires=1714732172andSignature=Ei8RhR2pCSUNGCNE40DugEyFamcyTxPuuRq9gslD~WGlNqPEgG3FL7VFRQCKXhZBWyAfGRjMtBmNDJ7Sjsgex12WxW9Fj8XdpB7Bfz23FuLc-t2YRM-2joKOHJQLxWJlfZiOzxDvVGZeM3zCHj~f3NUeY1~n6PtVtLzNdL8glIg5dzDTTIE6ms2YlxmnO6JvlzQwOWdHaUbHsZzMGOV19UPtBk-UJzHSq3NRyPe4-XNZQLNK-mEEcMGsLk6nkyXIsW2QJ7gtKW1nNkr6EMkAGSOnDai~pSqzb2imspMnlPRigAPPISrNHO79rP51H9bu1WvbRZv1KVkGvM~sRmfl28A__andKey-Pair-Id=APKAJLOHF5GGSLRBV4ZA#page=499
- Description: The use of cryptographic protocols as a means to provide security to web servers and services at the transport layer, by providing both en-cryption and authentication to data transfer, has become increasingly popular. However, we note that it is rather difficult to perform legitimate analysis, intrusion detection and debugging on cryptographic protocols, as the data that passes through is encrypted. In this paper we assume that we have legitimate access to the data and that we have the private key used in transactions and thus we will be able decrypt the data. The objective is to produce a suitable application framework that allows for easy recovery and secure storage of cryptographic keys; including ap-propriate tools to decapsulate traffic and to decrypt live packet streams or precaptured traffic contained in PCAP files. The resultant processing will then be able to provide a clear-text stream which can be used for further analysis.
- Full Text:
Meeting democracy’s challenge developments:
- Authors: Dugmore, Harry
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159389 , vital:40293 , https://hdl.handle.net/10520/EJC139935
- Description: In a context of declining public participation, can mobile phone technology and 'new media' be used to involve more people in local decision-making, asks Harry Dug more in this exploration of the implications of mobile communication on journalism in the developing world.
- Full Text:
- Authors: Dugmore, Harry
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159389 , vital:40293 , https://hdl.handle.net/10520/EJC139935
- Description: In a context of declining public participation, can mobile phone technology and 'new media' be used to involve more people in local decision-making, asks Harry Dug more in this exploration of the implications of mobile communication on journalism in the developing world.
- Full Text:
Metal (Co, Fe) tribenzotetraazachlorin–fullerene conjugates
- Ozoemena, Kenneth I, Mamuru, Solomon A, Fukuda, Takamitsu, Kobayashi, Nagao, Nyokong, Tebello
- Authors: Ozoemena, Kenneth I , Mamuru, Solomon A , Fukuda, Takamitsu , Kobayashi, Nagao , Nyokong, Tebello
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/263464 , vital:53630 , xlink:href="https://doi.org/10.1016/j.elecom.2009.04.011"
- Description: Novel hexabutylsulphonyltribenzotetraazachlorin–fullerene (C60) complexes of iron (FeHBSTBTAC–C60) and cobalt (CoHBSTBTAC–C60) have been synthesized and their electrochemistry and oxygen reduction reaction (ORR) compared with their octabutylsulphonylphthalocyanine analogues (FeOBSPc and CoOBSPc). It is proved that electron-withdrawing substituents (–SO2Bu and C60) on phthalocyanine macrocycle exhibit distinct impact on the solution electrochemistry of these metallophthalocyanine (MPc) complexes. The more electron-withdrawing C60 substituent suppressed ORR compared to the –SO2Bu in alkaline medium. FeOBSPc showed the best ORR activity involving a direct 4-electron mechanism, a rate constant of ∼1 × 108 cm3 mol−1 s−1 and a Tafel slope of −171 mV dec−1.
- Full Text:
- Authors: Ozoemena, Kenneth I , Mamuru, Solomon A , Fukuda, Takamitsu , Kobayashi, Nagao , Nyokong, Tebello
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/263464 , vital:53630 , xlink:href="https://doi.org/10.1016/j.elecom.2009.04.011"
- Description: Novel hexabutylsulphonyltribenzotetraazachlorin–fullerene (C60) complexes of iron (FeHBSTBTAC–C60) and cobalt (CoHBSTBTAC–C60) have been synthesized and their electrochemistry and oxygen reduction reaction (ORR) compared with their octabutylsulphonylphthalocyanine analogues (FeOBSPc and CoOBSPc). It is proved that electron-withdrawing substituents (–SO2Bu and C60) on phthalocyanine macrocycle exhibit distinct impact on the solution electrochemistry of these metallophthalocyanine (MPc) complexes. The more electron-withdrawing C60 substituent suppressed ORR compared to the –SO2Bu in alkaline medium. FeOBSPc showed the best ORR activity involving a direct 4-electron mechanism, a rate constant of ∼1 × 108 cm3 mol−1 s−1 and a Tafel slope of −171 mV dec−1.
- Full Text:
Metallophthalocyanine Based Carbon Paste Electrodes for the Determination of 2′, 3′‐Dideoxyinosine
- Ozoemena, Kenneth I, Stefan-van Staden, Raluca-Ioana, Nyokong, Tebello
- Authors: Ozoemena, Kenneth I , Stefan-van Staden, Raluca-Ioana , Nyokong, Tebello
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/263430 , vital:53627 , xlink:href="https://doi.org/10.1002/elan.200904581"
- Description: Novel electrochemical sensors based on carbon paste impregnated with metallopthalocyanine (MPc, M=Co, Fe) complexes, have been constructed for the assay of anti-HIV drug 2′,3′-dideoxyinosine (didanosine, DDI). Both modified electrodes showed electrocatalytic activity towards the oxidation of dideoxyinosine in phosphate buffer pH 7.4 with a working concentration range of 10−6–10−4 mol/L and a detection limit of 10−7 mol/L magnitude order. The sensor proved to be highly reliable for the assay of the purity of DDI - raw material as well as for the uniformity content test of Videx tablets.
- Full Text:
- Authors: Ozoemena, Kenneth I , Stefan-van Staden, Raluca-Ioana , Nyokong, Tebello
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/263430 , vital:53627 , xlink:href="https://doi.org/10.1002/elan.200904581"
- Description: Novel electrochemical sensors based on carbon paste impregnated with metallopthalocyanine (MPc, M=Co, Fe) complexes, have been constructed for the assay of anti-HIV drug 2′,3′-dideoxyinosine (didanosine, DDI). Both modified electrodes showed electrocatalytic activity towards the oxidation of dideoxyinosine in phosphate buffer pH 7.4 with a working concentration range of 10−6–10−4 mol/L and a detection limit of 10−7 mol/L magnitude order. The sensor proved to be highly reliable for the assay of the purity of DDI - raw material as well as for the uniformity content test of Videx tablets.
- Full Text:
Microsatellite markers for the roman, Chrysoblephus laticeps (Teleostei: Sparidae), an overexploited seabream from South Africa
- Teske, Peter R, Cowley, Paul D, Forget, Fabian R, Beheregaray, Luciano B
- Authors: Teske, Peter R , Cowley, Paul D , Forget, Fabian R , Beheregaray, Luciano B
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/445690 , vital:74414 , https://doi.org/10.1111/j.1755-0998.2009.02595.x
- Description: Eleven polymorphic microsatellite loci were developed from an enrichment library of the roman, Chrysoblephus laticeps, and characterized for 40 individuals collected in Africa's largest and oldest Marine Protected Area (MPA), the Tsitsikamma National Park. The number of alleles per locus ranged from three to 19, and heterozygosities ranged from 0.20 to 0.85. A significant departure from Hardy–Weinberg equilibrium was detected for one locus, and linkage disequilibrium was identified among three pairs of loci. The markers will be useful to detect whether populations resident in MPAs along the South African coast are genetically connected, and whether there is spillover of recruits into adjacent exploited areas.
- Full Text:
- Authors: Teske, Peter R , Cowley, Paul D , Forget, Fabian R , Beheregaray, Luciano B
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/445690 , vital:74414 , https://doi.org/10.1111/j.1755-0998.2009.02595.x
- Description: Eleven polymorphic microsatellite loci were developed from an enrichment library of the roman, Chrysoblephus laticeps, and characterized for 40 individuals collected in Africa's largest and oldest Marine Protected Area (MPA), the Tsitsikamma National Park. The number of alleles per locus ranged from three to 19, and heterozygosities ranged from 0.20 to 0.85. A significant departure from Hardy–Weinberg equilibrium was detected for one locus, and linkage disequilibrium was identified among three pairs of loci. The markers will be useful to detect whether populations resident in MPAs along the South African coast are genetically connected, and whether there is spillover of recruits into adjacent exploited areas.
- Full Text:
Mobile monitors: protecting the will of the people
- Authors: Dugmore, Harry
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159377 , vital:40292 , https://hdl.handle.net/10520/EJC139912
- Description: The use of mobile phone technology in recent African elections has empowered citizens, allowing them to put in place the checks and balances needed to make elections freer and fairer in Africa - and elsewhere in the world, writes Harry Dugmore.
- Full Text:
- Authors: Dugmore, Harry
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159377 , vital:40292 , https://hdl.handle.net/10520/EJC139912
- Description: The use of mobile phone technology in recent African elections has empowered citizens, allowing them to put in place the checks and balances needed to make elections freer and fairer in Africa - and elsewhere in the world, writes Harry Dugmore.
- Full Text:
Models of development for blowfly sister species Chrysomya chloropyga and Chrysomya putoria
- Richards, Cameron S, Crous, Kendall L, Villet, Martin H
- Authors: Richards, Cameron S , Crous, Kendall L , Villet, Martin H
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/${Handle} , vital:73967 , https://doi.org/10.1111/j.1365-2915.2008.00767.x
- Description: Developmental curves for the sister species Chrysomya chloropyga (Wiedemann, 1818) and Chrysomya putoria (Wiedemann, 1830) (Diptera: Calliphoridae) were established at eight and 10 different constant temperatures, respectively, using developmental landmarks and body length as measures of age. The thermal summation constants (K) and developmental threshold (D0) were calculated for five developmental landmarks using a previously described method. Isomorphen and isomegalen diagrams were also constructed for the purpose of estimating postmortem intervals (PMIs). Chrysomya chloropyga had an average developmental threshold value (D0) of 10.91 °C (standard error [SE] = 0.94 °C, n = 5), significantly lower than that of C. putoria (13.42 °C, SE = 0.45 °C, n = 5) (paired t‐test: t = − 4.63, d.f. = 8, P 0.00). Similarly, K values for C. chloropyga were larger than those for C. putoria for all developmental events except onset of the wandering phase. These are the first data that can be used to calculate minimum PMIs and predict population growth of C. chloropyga and C. putoria in Africa; the data indicate that developmental data for one of these species cannot be used as surrogate data for the sister species.
- Full Text:
- Authors: Richards, Cameron S , Crous, Kendall L , Villet, Martin H
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/${Handle} , vital:73967 , https://doi.org/10.1111/j.1365-2915.2008.00767.x
- Description: Developmental curves for the sister species Chrysomya chloropyga (Wiedemann, 1818) and Chrysomya putoria (Wiedemann, 1830) (Diptera: Calliphoridae) were established at eight and 10 different constant temperatures, respectively, using developmental landmarks and body length as measures of age. The thermal summation constants (K) and developmental threshold (D0) were calculated for five developmental landmarks using a previously described method. Isomorphen and isomegalen diagrams were also constructed for the purpose of estimating postmortem intervals (PMIs). Chrysomya chloropyga had an average developmental threshold value (D0) of 10.91 °C (standard error [SE] = 0.94 °C, n = 5), significantly lower than that of C. putoria (13.42 °C, SE = 0.45 °C, n = 5) (paired t‐test: t = − 4.63, d.f. = 8, P 0.00). Similarly, K values for C. chloropyga were larger than those for C. putoria for all developmental events except onset of the wandering phase. These are the first data that can be used to calculate minimum PMIs and predict population growth of C. chloropyga and C. putoria in Africa; the data indicate that developmental data for one of these species cannot be used as surrogate data for the sister species.
- Full Text:
Myth, Music & Modernism: the Wagnerian dimension in Virginia Woolf's Mrs Dalloway and the waves and James Joyce’s Finnegans Wake
- Authors: McGregor, Jamie Alexander
- Date: 2009
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/77069 , vital:30662
- Description: The study of Wagner's influence on the modernist novel is an established field with clear room for further contributions. Very little of the criticism undertaken to date takes full cognizance of the philosophical content of Wagner's dramas: a revolutionary form of romanticism that calls into question the very nature of the world, its most radical component being Schopenhauer's version of transcendental idealism. The compatibility of this doctrine with Wagner's earlier work, with its already marked privileging of myth over history, enabled his later dramas, consciously influenced by Schopenhauer, to crown a body of work greater than the sum of its parts. In works by Virginia Woolf and James Joyce, the "translation" of Wagnerian ideas into novelistic form demonstrates how they might be applied in "real life". In Mrs Dalloway, the figure of Septimus can be read as partly modelled on Wagner's heroes Siegfried and Tristan, two outstanding examples of the opposing heroic types found throughout his oeuvre, whose contrasting attributes are fused in Septimus's bipolar personality. The Wagnerian pattern also throws light on Septimus's transcendental "relationship" with a woman he does not even know, and on the implied noumenal identity of seemingly isolated individuals. In The Waves, the allusions to both Parsifal and the Ring need to be reconsidered in light of the fact that these works' heroes are all but identical (a fact overlooked in previous criticism); as Wagner's solar hero par excellence, Siegfried is central to the novel's cyclical symbolism. The Waves also revisits the question of identity but in a more cosmic context – the metaphysical unity of everything. In Finnegans Wake, the symbolism of the cosmic cycle is again related to the Ring, as are Wagner's two heroic types to the Shem / Shaun opposition (the Joyce / Woolf parallels here have also been overlooked in criticism to date). All three texts reveal a fascination with the two contrasting faces of a Wagnerian hero who embodies the dual nature of reality, mirroring in himself the eternal rise and fall of world history and, beyond them, the timeless stasis of myth.
- Full Text:
- Authors: McGregor, Jamie Alexander
- Date: 2009
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/77069 , vital:30662
- Description: The study of Wagner's influence on the modernist novel is an established field with clear room for further contributions. Very little of the criticism undertaken to date takes full cognizance of the philosophical content of Wagner's dramas: a revolutionary form of romanticism that calls into question the very nature of the world, its most radical component being Schopenhauer's version of transcendental idealism. The compatibility of this doctrine with Wagner's earlier work, with its already marked privileging of myth over history, enabled his later dramas, consciously influenced by Schopenhauer, to crown a body of work greater than the sum of its parts. In works by Virginia Woolf and James Joyce, the "translation" of Wagnerian ideas into novelistic form demonstrates how they might be applied in "real life". In Mrs Dalloway, the figure of Septimus can be read as partly modelled on Wagner's heroes Siegfried and Tristan, two outstanding examples of the opposing heroic types found throughout his oeuvre, whose contrasting attributes are fused in Septimus's bipolar personality. The Wagnerian pattern also throws light on Septimus's transcendental "relationship" with a woman he does not even know, and on the implied noumenal identity of seemingly isolated individuals. In The Waves, the allusions to both Parsifal and the Ring need to be reconsidered in light of the fact that these works' heroes are all but identical (a fact overlooked in previous criticism); as Wagner's solar hero par excellence, Siegfried is central to the novel's cyclical symbolism. The Waves also revisits the question of identity but in a more cosmic context – the metaphysical unity of everything. In Finnegans Wake, the symbolism of the cosmic cycle is again related to the Ring, as are Wagner's two heroic types to the Shem / Shaun opposition (the Joyce / Woolf parallels here have also been overlooked in criticism to date). All three texts reveal a fascination with the two contrasting faces of a Wagnerian hero who embodies the dual nature of reality, mirroring in himself the eternal rise and fall of world history and, beyond them, the timeless stasis of myth.
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Nathaniel Merriman’s lecture: “Shakspeare, as Bearing on English History”
- Authors: Wright, Laurence
- Date: 2009
- Language: English
- Type: text , article
- Identifier: vital:7060 , http://hdl.handle.net/10962/d1007424 , http://hdl.handle.net/10520/EJC48132
- Description: preprint , “Shakspeare, as Bearing on English History” is the second of two lectures on Shakespeare given by Archdeacon Nathaniel Merriman in Grahamstown in 1857. The first was delivered in the Court House on the 2nd September 1857, and the second two months later, on Friday 6th November that same year, again in the Court House. The lecture was published in 1858. An article placing the lectures in their local context appeared in Shakespeare in Southern Africa 20 (2008): 25-37, accompanying an annotated edition of the first lecture, “On the Study of Shakspeare”. Readers desiring details of the editorial principles adopted in producing annotated editions of the two lectures are referred to the introductory material prefacing the first lecture.
- Full Text:
- Authors: Wright, Laurence
- Date: 2009
- Language: English
- Type: text , article
- Identifier: vital:7060 , http://hdl.handle.net/10962/d1007424 , http://hdl.handle.net/10520/EJC48132
- Description: preprint , “Shakspeare, as Bearing on English History” is the second of two lectures on Shakespeare given by Archdeacon Nathaniel Merriman in Grahamstown in 1857. The first was delivered in the Court House on the 2nd September 1857, and the second two months later, on Friday 6th November that same year, again in the Court House. The lecture was published in 1858. An article placing the lectures in their local context appeared in Shakespeare in Southern Africa 20 (2008): 25-37, accompanying an annotated edition of the first lecture, “On the Study of Shakspeare”. Readers desiring details of the editorial principles adopted in producing annotated editions of the two lectures are referred to the introductory material prefacing the first lecture.
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NGOs and rural movements in contemporary South Africa
- Authors: Helliker, Kirk D
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/71252 , vital:29823 , https://doi.org/10.1080/02533952.2013.806415
- Description: This article provides a critical examination of relationships between non-governmental organisations (NGOs) and rural movements in post-apartheid South Africa, particularly with regard to the possible subordination of movements to NGOs. In discussing NGOs as a particular organisational form, and in reviewing some arguments pertaining to NGOs and rural movements globally, I explore whether NGOs in South Africa have a progressive role to play in agrarian transformation.
- Full Text:
- Authors: Helliker, Kirk D
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/71252 , vital:29823 , https://doi.org/10.1080/02533952.2013.806415
- Description: This article provides a critical examination of relationships between non-governmental organisations (NGOs) and rural movements in post-apartheid South Africa, particularly with regard to the possible subordination of movements to NGOs. In discussing NGOs as a particular organisational form, and in reviewing some arguments pertaining to NGOs and rural movements globally, I explore whether NGOs in South Africa have a progressive role to play in agrarian transformation.
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Nine Notes on Lisbon
- Authors: Krueger, Anton
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/229807 , vital:49712 , xlink:href="https://hdl.handle.net/10520/EJC47812"
- Full Text:
- Authors: Krueger, Anton
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/229807 , vital:49712 , xlink:href="https://hdl.handle.net/10520/EJC47812"
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Obesity: a preliminary report of an introductory service-learning course on the role of pharmacy students in health promotion
- Srinivas, Sunitha C, Wrench, Wendy W, Karekazi, Catherine W, Radloff, Sarah E, Daya, Santylal
- Authors: Srinivas, Sunitha C , Wrench, Wendy W , Karekazi, Catherine W , Radloff, Sarah E , Daya, Santylal
- Date: 2009
- Language: English
- Type: text , Article
- Identifier: vital:6454 , http://hdl.handle.net/10962/d1006833
- Description: Lifestyle diseases such as obesity have been neglected in developing countries partly due to a more urgent focus on infectious diseases in these countries. The incidence of obesity is on the increase in developing countries, with a marked rise in childhood obesity. A health promotioning service-learning principles required final year pharmacy students to prepare a pilot-tested computer-based quiz, using a pre- and post-intervention test design, along with other learning material, for participants at the 2007 Sasol National Festival of Science and Technology (SciFest). Interactive models, posters and information leaflets were used in explaining the prevention and control of obesity to learners. The results showed that the pre-existing knowledge of the participants was good. There was a further improvement after the educational intervention. Activities such as this are important in heightening awareness of obesity in learners as it is likely to reduce the incidence of obesity later in life. Furthermore, the activity also served to increase awareness of the role of pharmacists in the prevention of lifestyle diseases such as obesity.
- Full Text:
- Authors: Srinivas, Sunitha C , Wrench, Wendy W , Karekazi, Catherine W , Radloff, Sarah E , Daya, Santylal
- Date: 2009
- Language: English
- Type: text , Article
- Identifier: vital:6454 , http://hdl.handle.net/10962/d1006833
- Description: Lifestyle diseases such as obesity have been neglected in developing countries partly due to a more urgent focus on infectious diseases in these countries. The incidence of obesity is on the increase in developing countries, with a marked rise in childhood obesity. A health promotioning service-learning principles required final year pharmacy students to prepare a pilot-tested computer-based quiz, using a pre- and post-intervention test design, along with other learning material, for participants at the 2007 Sasol National Festival of Science and Technology (SciFest). Interactive models, posters and information leaflets were used in explaining the prevention and control of obesity to learners. The results showed that the pre-existing knowledge of the participants was good. There was a further improvement after the educational intervention. Activities such as this are important in heightening awareness of obesity in learners as it is likely to reduce the incidence of obesity later in life. Furthermore, the activity also served to increase awareness of the role of pharmacists in the prevention of lifestyle diseases such as obesity.
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On location: Narratives of the South African city of the late 1940s and 1950s in film and literature
- Authors: Baines, Gary F
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125397 , vital:35779 , https://doi.10.1080/02582470308671922
- Description: This article is about narratives, about the forms and meanings constructed by South African storytellers, especially writers and filmmakers. It examines the relationships between examples of these two different narrative forms of literature (fiction and non-fiction) and feature film. Following Turner, the point of departure is that the study of narrative has the potential to provide a framework within which such a two pronged approach can be undertaken. This is not to say that the production of meaning takes place within an exclusive literary or cinematic context. Rather, this approach will allow us to obtain a fuller picture of the narrative of the South African city than is possible by concentrating on one medium. It is based on the premise that narratives are ultimately produced by culture; thus these cultural constructions generate meanings, take on a significance, and assume forms that are articufations of the values, beliefs -the ideology - of the culture.' Literature and film offer specific forms for such narratives. By adopting an interdisciplinary approach which borrows insights from literary and film studies, this article attempts to make a contribution to the fledgling field of South African cultural studies.
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On location: Narratives of the South African city of the late 1940s and 1950s in film and literature
- Authors: Baines, Gary F
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125397 , vital:35779 , https://doi.10.1080/02582470308671922
- Description: This article is about narratives, about the forms and meanings constructed by South African storytellers, especially writers and filmmakers. It examines the relationships between examples of these two different narrative forms of literature (fiction and non-fiction) and feature film. Following Turner, the point of departure is that the study of narrative has the potential to provide a framework within which such a two pronged approach can be undertaken. This is not to say that the production of meaning takes place within an exclusive literary or cinematic context. Rather, this approach will allow us to obtain a fuller picture of the narrative of the South African city than is possible by concentrating on one medium. It is based on the premise that narratives are ultimately produced by culture; thus these cultural constructions generate meanings, take on a significance, and assume forms that are articufations of the values, beliefs -the ideology - of the culture.' Literature and film offer specific forms for such narratives. By adopting an interdisciplinary approach which borrows insights from literary and film studies, this article attempts to make a contribution to the fledgling field of South African cultural studies.
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On Moving House
- Authors: Krueger, Anton
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/229785 , vital:49710 , xlink:href="https://hdl.handle.net/10520/EJC47812"
- Full Text:
- Authors: Krueger, Anton
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/229785 , vital:49710 , xlink:href="https://hdl.handle.net/10520/EJC47812"
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Opposing responses elicited by positively charged phthalocyanines in the presence of CdTe quantum dots
- Moeno, Sharon, Nyokong, Tebello
- Authors: Moeno, Sharon , Nyokong, Tebello
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/264506 , vital:53740 , xlink:href="https://doi.org/10.1016/j.jphotochem.2008.10.027"
- Description: Tetrapositively charged phthalocyanines and CdTe quantum dots (QDs) capped with thioglycolic acid (TGA) and mercaptopropionic acid (MPA) were synthesized. The response of the tetrapositively charged zinc phthalocyanines in the presence of quantum dots was studied. Aggregation and charge transfer were observed for [tetramethyl-2,(3)-[tetra-(2-mercaptopyridinephthalocyaninato)]zinc(II)]4+ (TmTMPyZnPc), however aggregation proved to be the more prominent process of the two. Fluorescence resonance energy transfer (FRET) was observed with [tetramethyl-2,(3)-[tetra-(2- pyridyloxyphthalocyaninato)]zinc(II)]4+ (TmTPyZnPc). In the FRET study the efficiency of FRET with TmTPyZnPc was determined to be 21% for both MPA and TGA capped CdTe QDs. For the charge transfer study the fluorescence of the quantum dots was quenched by the TmTMPyZnPc used, and from these quenching studies the quenching constants, binding constants and number of binding sites on the quantum dots were determined.
- Full Text:
- Authors: Moeno, Sharon , Nyokong, Tebello
- Date: 2009
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/264506 , vital:53740 , xlink:href="https://doi.org/10.1016/j.jphotochem.2008.10.027"
- Description: Tetrapositively charged phthalocyanines and CdTe quantum dots (QDs) capped with thioglycolic acid (TGA) and mercaptopropionic acid (MPA) were synthesized. The response of the tetrapositively charged zinc phthalocyanines in the presence of quantum dots was studied. Aggregation and charge transfer were observed for [tetramethyl-2,(3)-[tetra-(2-mercaptopyridinephthalocyaninato)]zinc(II)]4+ (TmTMPyZnPc), however aggregation proved to be the more prominent process of the two. Fluorescence resonance energy transfer (FRET) was observed with [tetramethyl-2,(3)-[tetra-(2- pyridyloxyphthalocyaninato)]zinc(II)]4+ (TmTPyZnPc). In the FRET study the efficiency of FRET with TmTPyZnPc was determined to be 21% for both MPA and TGA capped CdTe QDs. For the charge transfer study the fluorescence of the quantum dots was quenched by the TmTMPyZnPc used, and from these quenching studies the quenching constants, binding constants and number of binding sites on the quantum dots were determined.
- Full Text: