The privacy paradox applies to IoT devices too: a Saudi Arabian study
- Aleisa, Noura, Renaud, Karen, Bongiovanni, Ivano
- Authors: Aleisa, Noura , Renaud, Karen , Bongiovanni, Ivano
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/150252 , vital:38953 , https://doi.org/10.1016/j.cose.2020.101897
- Description: The “privacy paradox” is the term used to describe the disconnect between self-reported privacy value attributions and actions actually taken to protect and preserve personal privacy. This phenomenon has been investigated in a number of domains and we extend the body of research with an investigation in the IoT domain. We presented participants with evidence of a specific IoT device’s (smart plug) privacy violations and then measured changes in privacy concerns and trust, as well as uptake of a range of behavioural responses. Our Saudi Arabian participants, despite expressing high levels of privacy concerns, generally chose not to respond to this evidence with preventative action.
- Full Text:
- Date Issued: 2020
- Authors: Aleisa, Noura , Renaud, Karen , Bongiovanni, Ivano
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/150252 , vital:38953 , https://doi.org/10.1016/j.cose.2020.101897
- Description: The “privacy paradox” is the term used to describe the disconnect between self-reported privacy value attributions and actions actually taken to protect and preserve personal privacy. This phenomenon has been investigated in a number of domains and we extend the body of research with an investigation in the IoT domain. We presented participants with evidence of a specific IoT device’s (smart plug) privacy violations and then measured changes in privacy concerns and trust, as well as uptake of a range of behavioural responses. Our Saudi Arabian participants, despite expressing high levels of privacy concerns, generally chose not to respond to this evidence with preventative action.
- Full Text:
- Date Issued: 2020
The Privacy Paradox applies to IoT devices too: a Saudi Arabian study
- Aleisa, Noura, Renaud, Karen, Bongiovanni, Ivano
- Authors: Aleisa, Noura , Renaud, Karen , Bongiovanni, Ivano
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158350 , vital:40176 , https://doi.org/10.1016/j.cose.2020.101897
- Description: The “privacy paradox” is the term used to describe the disconnect between self-reported privacy value attributions and actions actually taken to protect and preserve personal privacy. This phenomenon has been investigated in a number of domains and we extend the body of research with an investigation in the IoT domain. We presented participants with evidence of a specific IoT device’s (smart plug) privacy violations and then measured changes in privacy concerns and trust, as well as uptake of a range of behavioural responses.
- Full Text:
- Date Issued: 2020
- Authors: Aleisa, Noura , Renaud, Karen , Bongiovanni, Ivano
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158350 , vital:40176 , https://doi.org/10.1016/j.cose.2020.101897
- Description: The “privacy paradox” is the term used to describe the disconnect between self-reported privacy value attributions and actions actually taken to protect and preserve personal privacy. This phenomenon has been investigated in a number of domains and we extend the body of research with an investigation in the IoT domain. We presented participants with evidence of a specific IoT device’s (smart plug) privacy violations and then measured changes in privacy concerns and trust, as well as uptake of a range of behavioural responses.
- Full Text:
- Date Issued: 2020
Design of realistic hybrid marine resource management programs in Oceania
- Aswani, Shankar, Ruddle, Kenneth
- Authors: Aswani, Shankar , Ruddle, Kenneth
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/70615 , vital:29681 , https://doi.org/10.2984/67.3.11
- Description: This review article synthesizes the authors' several decades of multidisciplinary natural and social science and applied marine resource management experience in the Asia-Pacific region to examine the strengthening of coastal and marine resource management and conservation using alliances between local communities and external institutions. The objective is to assist the design of resource management and conservation programs that enhance the capacity of coastal communities in Oceania to confront both diminishing marine resources and the effects of climate change by providing guidelines for protecting marine biodiversity and vulnerable ecosystem functions. This article describes a management framework that hybridizes local beliefs and institutions expressed in customary management (CM) with such modern management concepts as marine protected areas (MPAs) and ecosystem-based management (EBM). Hybrid management accommodates the social, political, economic, and cultural contexts of Oceanic communities and, compared with recent or conventional management approaches, can therefore better address fundamental local concerns such as coastal degradation, climate change, sea level rise, weak governance, corruption, limited resources and staff to manage and monitor marine resources, and increasing poverty. Research on the hybridization of management systems demonstrates opportunities to establish context-appropriate EBM and/or other managerial arrangements that include terrestrial and adjacent coastal-marine ecosystems. Formal and informal CM systems are widespread in Oceania and in some parts of Southeast Asia, and if appropriate strategies are employed rapid progress toward hybrid CM-EBM could be enabled.
- Full Text:
- Date Issued: 2012
- Authors: Aswani, Shankar , Ruddle, Kenneth
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/70615 , vital:29681 , https://doi.org/10.2984/67.3.11
- Description: This review article synthesizes the authors' several decades of multidisciplinary natural and social science and applied marine resource management experience in the Asia-Pacific region to examine the strengthening of coastal and marine resource management and conservation using alliances between local communities and external institutions. The objective is to assist the design of resource management and conservation programs that enhance the capacity of coastal communities in Oceania to confront both diminishing marine resources and the effects of climate change by providing guidelines for protecting marine biodiversity and vulnerable ecosystem functions. This article describes a management framework that hybridizes local beliefs and institutions expressed in customary management (CM) with such modern management concepts as marine protected areas (MPAs) and ecosystem-based management (EBM). Hybrid management accommodates the social, political, economic, and cultural contexts of Oceanic communities and, compared with recent or conventional management approaches, can therefore better address fundamental local concerns such as coastal degradation, climate change, sea level rise, weak governance, corruption, limited resources and staff to manage and monitor marine resources, and increasing poverty. Research on the hybridization of management systems demonstrates opportunities to establish context-appropriate EBM and/or other managerial arrangements that include terrestrial and adjacent coastal-marine ecosystems. Formal and informal CM systems are widespread in Oceania and in some parts of Southeast Asia, and if appropriate strategies are employed rapid progress toward hybrid CM-EBM could be enabled.
- Full Text:
- Date Issued: 2012
Planning for the future: mapping anticipated environmental and social impacts in a nascent tourism destination
- Aswani, Shankar, Diedrich, Amy, Currier, Kitty
- Authors: Aswani, Shankar , Diedrich, Amy , Currier, Kitty
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145415 , vital:38436 , DOI: 10.1080/08941920.2015.1020582
- Description: Tourism is a significant driver of social and ecological change in developing countries, particularly in small-island states, which are susceptible to tourism impacts due to their particular social and environmental characteristics. In this article we present a participatory mapping approach to obtaining spatially explicit local perceptions of future environmental and social change resulting from tourism development, as well as addressing the different community conflicts that may arise through the introduction of tourism in the future in a Solomon Islands community. The results show that spatial conflicts within a community over territory and associated resources are likely to occur when designing natural resource management and tourism development plans. This knowledge can help us increase the future sustainability of tourism in nascent small-islands destinations, particularly in vulnerable regions such as Roviana, which have experienced very little tourism development and will likely experience more in the near future.
- Full Text:
- Date Issued: 2015
- Authors: Aswani, Shankar , Diedrich, Amy , Currier, Kitty
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145415 , vital:38436 , DOI: 10.1080/08941920.2015.1020582
- Description: Tourism is a significant driver of social and ecological change in developing countries, particularly in small-island states, which are susceptible to tourism impacts due to their particular social and environmental characteristics. In this article we present a participatory mapping approach to obtaining spatially explicit local perceptions of future environmental and social change resulting from tourism development, as well as addressing the different community conflicts that may arise through the introduction of tourism in the future in a Solomon Islands community. The results show that spatial conflicts within a community over territory and associated resources are likely to occur when designing natural resource management and tourism development plans. This knowledge can help us increase the future sustainability of tourism in nascent small-islands destinations, particularly in vulnerable regions such as Roviana, which have experienced very little tourism development and will likely experience more in the near future.
- Full Text:
- Date Issued: 2015
Reform in defence of sovereignty: South Africa in the UN Security Council, 2007–2008
- Authors: Bischoff, Paul, 1954-
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/161431 , vital:40626 , https://0-doi.org.wam.seals.ac.za/10.1177/000203970904400205
- Description: After 1994, South Africa became the sine qua non of an internationalist state, willing to promote cooperation amongst a plurality of actors, believing common interests to be more important than their differences. This raised the hopes of constitutionalists, and those who believed in the expansion of a liberal democratic peace. South Africa has acted out two seemingly contradictory roles: those of a reformer and those of a conserver. By 2007–2008 she had shifted towards the latter, conservative-reformist position. Thus, South Africa's voting record at the General Assembly expressed her overriding concern to regionalise African issues and minimise the US and the West shaping political events. This brought her foreign policy into sharper relief. But while in some sense successful, it came at a price: a controversy about her surrendering her internationalism and principles on human rights for African unity and traditional sovereignty. But it also marked the arrival of South Africa in the world of international Realpolitik.
- Full Text:
- Date Issued: 2009
- Authors: Bischoff, Paul, 1954-
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/161431 , vital:40626 , https://0-doi.org.wam.seals.ac.za/10.1177/000203970904400205
- Description: After 1994, South Africa became the sine qua non of an internationalist state, willing to promote cooperation amongst a plurality of actors, believing common interests to be more important than their differences. This raised the hopes of constitutionalists, and those who believed in the expansion of a liberal democratic peace. South Africa has acted out two seemingly contradictory roles: those of a reformer and those of a conserver. By 2007–2008 she had shifted towards the latter, conservative-reformist position. Thus, South Africa's voting record at the General Assembly expressed her overriding concern to regionalise African issues and minimise the US and the West shaping political events. This brought her foreign policy into sharper relief. But while in some sense successful, it came at a price: a controversy about her surrendering her internationalism and principles on human rights for African unity and traditional sovereignty. But it also marked the arrival of South Africa in the world of international Realpolitik.
- Full Text:
- Date Issued: 2009
Effect of a low density dust shell on the propagation of gravitational waves:
- Bishop, Nigel T, van der Walt, Petrus J, Naidoo, Monos
- Authors: Bishop, Nigel T , van der Walt, Petrus J , Naidoo, Monos
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159935 , vital:40357 , https://0-doi.org.wam.seals.ac.za/10.1007/s10714-020-02740-9
- Description: Using the Bondi-Sachs formalism, the problem of a gravitational wave source surrounded by a spherical dust shell is considered. Using linearized perturbation theory, the geometry is found in the regions: in the shell, exterior to the shell, and interior to the shell. It is found that the dust shell causes the gravitational wave to be modified both in magnitude and phase, but without any energy being transferred to or from the dust.
- Full Text:
- Date Issued: 2020
- Authors: Bishop, Nigel T , van der Walt, Petrus J , Naidoo, Monos
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159935 , vital:40357 , https://0-doi.org.wam.seals.ac.za/10.1007/s10714-020-02740-9
- Description: Using the Bondi-Sachs formalism, the problem of a gravitational wave source surrounded by a spherical dust shell is considered. Using linearized perturbation theory, the geometry is found in the regions: in the shell, exterior to the shell, and interior to the shell. It is found that the dust shell causes the gravitational wave to be modified both in magnitude and phase, but without any energy being transferred to or from the dust.
- Full Text:
- Date Issued: 2020
Rewarding tax compliance: taxpayers’ attitudes and beliefs
- Bornman, Marina, Stack, Elizabeth M
- Authors: Bornman, Marina , Stack, Elizabeth M
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61039 , vital:27931
- Description: In a society the tax climate is determined by the interaction between taxpayers and tax authorities. In a ‘service and client’ climate, taxpayers do not expect authorities to automatically suspect them of being tax evaders. Evidence suggests that recognising good tax behaviour with strategies of rewards has a positive effect on voluntary tax compliance. Principles derived from the cognitive evaluation theory predict that when feelings of competence are affirmed and this is accompanied by a sense of autonomy it can enhance the intrinsic motivation for an action. The present research surveyed the attitudes and beliefs of taxpayers involved in small business on being rewarded for tax compliance. Results were corroborated with the principles of the cognitive evaluation theory and it was found that that the principles of the theory are applicable to rewarding tax compliance behaviour.
- Full Text:
- Date Issued: 2015
- Authors: Bornman, Marina , Stack, Elizabeth M
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61039 , vital:27931
- Description: In a society the tax climate is determined by the interaction between taxpayers and tax authorities. In a ‘service and client’ climate, taxpayers do not expect authorities to automatically suspect them of being tax evaders. Evidence suggests that recognising good tax behaviour with strategies of rewards has a positive effect on voluntary tax compliance. Principles derived from the cognitive evaluation theory predict that when feelings of competence are affirmed and this is accompanied by a sense of autonomy it can enhance the intrinsic motivation for an action. The present research surveyed the attitudes and beliefs of taxpayers involved in small business on being rewarded for tax compliance. Results were corroborated with the principles of the cognitive evaluation theory and it was found that that the principles of the theory are applicable to rewarding tax compliance behaviour.
- Full Text:
- Date Issued: 2015
The‘person without the person’ in the early work of Paul Emmanuel:
- Authors: Bronner, Irene
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147737 , vital:38666 , https://doi.org/10.1080/00043389.2012.11877161
- Description: Paul Emmanuel’s early prints and incised drawings represent the human body as a presence that either is not easily seen, actively disappears or erases itself, or is entirely absent. In doing so, these still life and landscape works metaphorically explore inner, psychological ‘landscapes’, both conscious and unconscious. By drawing deliberate attention to his oblique and deceptive surfaces, Emmanuel’s process, medium and subject matter may be said to express subjectivity as a process of materialisation, as formed through the contingencies and inconsistencies of vision, experience and memory. To ‘see’ this process, and to understand what Emmanuel means by ‘seeing and not seeing’, I consider two strategies that Emmanuel arguably employs to disrupt viewing: partial, fragmented and multiple perspectives and empty clothing abandoned in landscapes.
- Full Text:
- Date Issued: 2017
- Authors: Bronner, Irene
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147737 , vital:38666 , https://doi.org/10.1080/00043389.2012.11877161
- Description: Paul Emmanuel’s early prints and incised drawings represent the human body as a presence that either is not easily seen, actively disappears or erases itself, or is entirely absent. In doing so, these still life and landscape works metaphorically explore inner, psychological ‘landscapes’, both conscious and unconscious. By drawing deliberate attention to his oblique and deceptive surfaces, Emmanuel’s process, medium and subject matter may be said to express subjectivity as a process of materialisation, as formed through the contingencies and inconsistencies of vision, experience and memory. To ‘see’ this process, and to understand what Emmanuel means by ‘seeing and not seeing’, I consider two strategies that Emmanuel arguably employs to disrupt viewing: partial, fragmented and multiple perspectives and empty clothing abandoned in landscapes.
- Full Text:
- Date Issued: 2017
Dimensions and indicators of non-profit financial condition: evidence from South African public universities
- Authors: Bunting, Mark B
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/150296 , vital:38965 , DOI: https://doi.org/10.4102/sajems.v23i1.2974
- Description: More than three decades of research have failed to achieve convergence on a method for the measurement of non-profit financial condition, with the literature reporting a bewildering array of financial dimensions, and more than 100 ratios and indicators. This article offers a contribution to a broader discourse in non-profit financial analysis by recognising, and taking action in response to, the potential threat to research validity arising from the generally unchallenged presumption that accounting numbers provide a complete, unbiased and error-free representation of an entity’s underlying economic reality.
- Full Text:
- Date Issued: 2020
- Authors: Bunting, Mark B
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/150296 , vital:38965 , DOI: https://doi.org/10.4102/sajems.v23i1.2974
- Description: More than three decades of research have failed to achieve convergence on a method for the measurement of non-profit financial condition, with the literature reporting a bewildering array of financial dimensions, and more than 100 ratios and indicators. This article offers a contribution to a broader discourse in non-profit financial analysis by recognising, and taking action in response to, the potential threat to research validity arising from the generally unchallenged presumption that accounting numbers provide a complete, unbiased and error-free representation of an entity’s underlying economic reality.
- Full Text:
- Date Issued: 2020
Low-frequency observations of the giant radio galaxy NGC 6251:
- Cantwell, T M, Bray, J D, Croston, J H, Scaife, A M M, Mulcahy, D D, Best, P N, Brüggen, M, Brunetti, G, Callingham, J R, Clarke, A O, Hardcastle, M J, Harwood, J J, Heald, G, Heesen, V, Iacobelli, M, Jamrozy, M, Morganti, R, Orru, E, O’Sullivan, S P, Riseley, C J, Röttgering, H J A, Shulevski, A, Sridhar, S S, Tasse, C, Van Eck, C L
- Authors: Cantwell, T M , Bray, J D , Croston, J H , Scaife, A M M , Mulcahy, D D , Best, P N , Brüggen, M , Brunetti, G , Callingham, J R , Clarke, A O , Hardcastle, M J , Harwood, J J , Heald, G , Heesen, V , Iacobelli, M , Jamrozy, M , Morganti, R , Orru, E , O’Sullivan, S P , Riseley, C J , Röttgering, H J A , Shulevski, A , Sridhar, S S , Tasse, C , Van Eck, C L
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149931 , vital:38913 , https://0-doi.org.wam.seals.ac.za/10.1093/mnras/staa1160
- Description: We present LOFAR observations at 150 MHz of the borderline FRI/FRII giant radio galaxy NGC 6251. This paper presents the most sensitive and highest resolution images of NGC 6251 at these frequencies to date, revealing for the first time a low-surface-brightness extension to the northern lobe, and a possible backflow associated with the southern lobe. The integrated spectra of components of NGC 6251 are consistent with previous measurements at higher frequencies, similar to results from other LOFAR studies of nearby radio galaxies.
- Full Text:
- Date Issued: 2020
- Authors: Cantwell, T M , Bray, J D , Croston, J H , Scaife, A M M , Mulcahy, D D , Best, P N , Brüggen, M , Brunetti, G , Callingham, J R , Clarke, A O , Hardcastle, M J , Harwood, J J , Heald, G , Heesen, V , Iacobelli, M , Jamrozy, M , Morganti, R , Orru, E , O’Sullivan, S P , Riseley, C J , Röttgering, H J A , Shulevski, A , Sridhar, S S , Tasse, C , Van Eck, C L
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149931 , vital:38913 , https://0-doi.org.wam.seals.ac.za/10.1093/mnras/staa1160
- Description: We present LOFAR observations at 150 MHz of the borderline FRI/FRII giant radio galaxy NGC 6251. This paper presents the most sensitive and highest resolution images of NGC 6251 at these frequencies to date, revealing for the first time a low-surface-brightness extension to the northern lobe, and a possible backflow associated with the southern lobe. The integrated spectra of components of NGC 6251 are consistent with previous measurements at higher frequencies, similar to results from other LOFAR studies of nearby radio galaxies.
- Full Text:
- Date Issued: 2020
Voices of the hungry: a qualitative measure of household food access and food insecurity in South Africa
- Chakona, Gamuchirai, Shackleton, Charlie M
- Authors: Chakona, Gamuchirai , Shackleton, Charlie M
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/67277 , vital:29066 , https://doi.org/10.1186/s40066-017-0149-x
- Description: publisher version , Background: South Africa is rated a food secure nation, but large numbers of households within the country have inadequate access to nutrient-rich diverse foods. The study sought to investigate households’ physical and economic access and availability of food, in relation to local context which influences households’ access to and ability to grow food which may affect the dietary quality. We sought to understand self-reported healthy diets, food insecurity from the perspective of people who experienced it, barriers to household food security and perceptions and feelings on food access as well as strategies households use to cope with food shortages and their perceptions on improving household food security. Methods: Focus group discussions were conducted along a rural–urban continuum in three South African towns situated along an agro-ecological gradient. Participants were asked about their knowledge of healthy diets, factors influencing their food consumption, their perceptions regarding food insecurity, barriers to food security, coping strategies and solutions to improve access to nutrient-rich foods. Results: A total of 91 people participated in 11 focus groups, with 76% females. The majority of participants aged between 31 and 50 years. Participants were knowledgeable about healthy diets but had limited access to it hence consumed monotonous diets. The perceptions provided insights into the pressing issues of inadequate access to food, food insecurity, coping strategies and ideas on improving food security. The majority of participants reported on experiencing food insecurity and female-headed households, unemployed and orphaned children were most vulnerable. Focus group participants highlighted the complexity of the food system in their communities which relies on own production, collecting from open spaces, donations and to a larger extent purchase, in the context of unemployment, low income, water and land shortages as well as theft. Conclusion: The results provide a significant contribution from a needs assessment perspective from the communities, identify “hidden” constrains in household food access and provide effective future solutions for improving food security in the communities. Government should assist with capacity building, employment creation and providing resources (especially, land and water) for communities to practise agriculture which they all agreed can improve food security.
- Full Text:
- Date Issued: 2013
- Authors: Chakona, Gamuchirai , Shackleton, Charlie M
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/67277 , vital:29066 , https://doi.org/10.1186/s40066-017-0149-x
- Description: publisher version , Background: South Africa is rated a food secure nation, but large numbers of households within the country have inadequate access to nutrient-rich diverse foods. The study sought to investigate households’ physical and economic access and availability of food, in relation to local context which influences households’ access to and ability to grow food which may affect the dietary quality. We sought to understand self-reported healthy diets, food insecurity from the perspective of people who experienced it, barriers to household food security and perceptions and feelings on food access as well as strategies households use to cope with food shortages and their perceptions on improving household food security. Methods: Focus group discussions were conducted along a rural–urban continuum in three South African towns situated along an agro-ecological gradient. Participants were asked about their knowledge of healthy diets, factors influencing their food consumption, their perceptions regarding food insecurity, barriers to food security, coping strategies and solutions to improve access to nutrient-rich foods. Results: A total of 91 people participated in 11 focus groups, with 76% females. The majority of participants aged between 31 and 50 years. Participants were knowledgeable about healthy diets but had limited access to it hence consumed monotonous diets. The perceptions provided insights into the pressing issues of inadequate access to food, food insecurity, coping strategies and ideas on improving food security. The majority of participants reported on experiencing food insecurity and female-headed households, unemployed and orphaned children were most vulnerable. Focus group participants highlighted the complexity of the food system in their communities which relies on own production, collecting from open spaces, donations and to a larger extent purchase, in the context of unemployment, low income, water and land shortages as well as theft. Conclusion: The results provide a significant contribution from a needs assessment perspective from the communities, identify “hidden” constrains in household food access and provide effective future solutions for improving food security in the communities. Government should assist with capacity building, employment creation and providing resources (especially, land and water) for communities to practise agriculture which they all agreed can improve food security.
- Full Text:
- Date Issued: 2013
The Cultural Use of the Wild Olive Tree by the amaXhosa People in the Eastern Cape Province of South Africa:
- Cocks, Michelle L, Dold, Anthony P
- Authors: Cocks, Michelle L , Dold, Anthony P
- Date: 2008
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/141314 , vital:37961 , DOI: 10.1558/jsrnc.v2i3.292
- Description: The cultural meanings of harvested plants have for the most part been ignored in academic research on non-timber forest products (NTFPs) in southern Africa. Historically scientists have tended to ignore the complex relationships between nature and culture. Given the country's unique political and economic past and the current search for sustainable use of natural resources, a focus on the convergence of natural science and cultural diversity is important at this time. Empirical data on cultural practices is being collected in order to develop fresh and relevant insights into the complex relationships between culture and bítKÜversity. The purpose of this paper is to demonstrate that the concept of culture needs to be brought into our understanding of the role of NTFPs. We dtxrument the use and value of a specific tree, Olea europaea L. subsp. africana (Mill.) P,S. Green, called Umiicjuma in the Xhosa language, for cultural purposes, by both rural and urban households.
- Full Text:
- Date Issued: 2008
- Authors: Cocks, Michelle L , Dold, Anthony P
- Date: 2008
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/141314 , vital:37961 , DOI: 10.1558/jsrnc.v2i3.292
- Description: The cultural meanings of harvested plants have for the most part been ignored in academic research on non-timber forest products (NTFPs) in southern Africa. Historically scientists have tended to ignore the complex relationships between nature and culture. Given the country's unique political and economic past and the current search for sustainable use of natural resources, a focus on the convergence of natural science and cultural diversity is important at this time. Empirical data on cultural practices is being collected in order to develop fresh and relevant insights into the complex relationships between culture and bítKÜversity. The purpose of this paper is to demonstrate that the concept of culture needs to be brought into our understanding of the role of NTFPs. We dtxrument the use and value of a specific tree, Olea europaea L. subsp. africana (Mill.) P,S. Green, called Umiicjuma in the Xhosa language, for cultural purposes, by both rural and urban households.
- Full Text:
- Date Issued: 2008
George Webb Hardy's the Black Peril and the social meaning of ‘Black Peril’ in early twentieth-century South Africa
- Authors: Cornwell, Gareth D N
- Date: 1996
- Language: English
- Type: text , article
- Identifier: vital:6116 , http://hdl.handle.net/10962/d1004240 , https://doi.org/10.1080/03057079608708504
- Description: preprint , The 'Black Peril' — the threatened rape of white women by black men — was an important factor in the moral economy underpinning colonial debate about the 'Native Question' in early twentieth-century South Africa. This essay gives sympathetic consideration to studies which have attempted to link the recurrence of Black Peril panics with specific disturbances in the economy or body politic, before offering symptomatic readings of two pieces of writing by George Webb Hardy, the article 'The Black Peril' (1904) and the novel The Black Peril (1912). These readings suggest that the rape threat was essentially a rationalization of white men's fear of sexual competition from black men. The imagery of purity and contagion, in terms of which the 'endogamous imperative' is typically represented in such texts, suggests that the idea of caste may usefully be invoked in attempts to explain the seemingly irrational public hysteria surrounding the Black Peril phenomenon.
- Full Text:
- Date Issued: 1996
- Authors: Cornwell, Gareth D N
- Date: 1996
- Language: English
- Type: text , article
- Identifier: vital:6116 , http://hdl.handle.net/10962/d1004240 , https://doi.org/10.1080/03057079608708504
- Description: preprint , The 'Black Peril' — the threatened rape of white women by black men — was an important factor in the moral economy underpinning colonial debate about the 'Native Question' in early twentieth-century South Africa. This essay gives sympathetic consideration to studies which have attempted to link the recurrence of Black Peril panics with specific disturbances in the economy or body politic, before offering symptomatic readings of two pieces of writing by George Webb Hardy, the article 'The Black Peril' (1904) and the novel The Black Peril (1912). These readings suggest that the rape threat was essentially a rationalization of white men's fear of sexual competition from black men. The imagery of purity and contagion, in terms of which the 'endogamous imperative' is typically represented in such texts, suggests that the idea of caste may usefully be invoked in attempts to explain the seemingly irrational public hysteria surrounding the Black Peril phenomenon.
- Full Text:
- Date Issued: 1996
Influence of intra-and interspecific variation in predator–prey body size ratios on trophic interaction strengths:
- Cuthbert, Ross N, Wasserman, Ryan J, Dalu, Tatenda, Kaiser, Horst, Weyl, Olaf L F, Dick, Jaimie T A, Sentis, Arnaud, McCoy, Michael W, Alexander, Mhairi E
- Authors: Cuthbert, Ross N , Wasserman, Ryan J , Dalu, Tatenda , Kaiser, Horst , Weyl, Olaf L F , Dick, Jaimie T A , Sentis, Arnaud , McCoy, Michael W , Alexander, Mhairi E
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149358 , vital:38839 , https://0-doi.org.wam.seals.ac.za/10.1002/ece3.6332
- Description: Predation is a pervasive force that structures food webs and directly influences ecosystem functioning. The relative body sizes of predators and prey may be an important determinant of interaction strengths. However, studies quantifying the combined influence of intra‐ and interspecific variation in predator–prey body size ratios are lacking. We use a comparative functional response approach to examine interaction strengths between three size classes of invasive bluegill and largemouth bass toward three scaled size classes of their tilapia prey. We then quantify the influence of intra‐ and interspecific predator–prey body mass ratios on the scaling of attack rates and handling times.
- Full Text:
- Date Issued: 2020
- Authors: Cuthbert, Ross N , Wasserman, Ryan J , Dalu, Tatenda , Kaiser, Horst , Weyl, Olaf L F , Dick, Jaimie T A , Sentis, Arnaud , McCoy, Michael W , Alexander, Mhairi E
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149358 , vital:38839 , https://0-doi.org.wam.seals.ac.za/10.1002/ece3.6332
- Description: Predation is a pervasive force that structures food webs and directly influences ecosystem functioning. The relative body sizes of predators and prey may be an important determinant of interaction strengths. However, studies quantifying the combined influence of intra‐ and interspecific variation in predator–prey body size ratios are lacking. We use a comparative functional response approach to examine interaction strengths between three size classes of invasive bluegill and largemouth bass toward three scaled size classes of their tilapia prey. We then quantify the influence of intra‐ and interspecific predator–prey body mass ratios on the scaling of attack rates and handling times.
- Full Text:
- Date Issued: 2020
In Parenthesis:
- Authors: de Jager, Maureen
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147880 , vital:38681 , DOI: 10.1080/02560046.2019.1684966
- Description: IN PARENTHESIS is a practice-based essay which takes shape, parasitically, amidst the “found text” of an existing book, British author Thomas Pakenham's The Boer War (1979, Johannesburg: Jonathan Ball). The “author-reader” interjects into the found text of this authoritative history book, inserting her words amongst those of Pakenham's. What becomes apparent, however, is that the text into which she interjects is not The Boer War verbatim, but a dramatically abridged version. The book's primary content has been edited out. What remains is The Boer War whittled down to a litany of Pakenham's parentheses (the history book distilled into an essence of the seemingly non-essential). Into this stream of bracketed matter, the author-reader writes, ruminating on the parenthesis as ethos (as prison and portal, barricade and breach, enclave and embrace). In turn, her ruminations invite reflection on the conundrum of writing history, of writing this history (and, indeed, of writing per se).
- Full Text:
- Date Issued: 2019
- Authors: de Jager, Maureen
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147880 , vital:38681 , DOI: 10.1080/02560046.2019.1684966
- Description: IN PARENTHESIS is a practice-based essay which takes shape, parasitically, amidst the “found text” of an existing book, British author Thomas Pakenham's The Boer War (1979, Johannesburg: Jonathan Ball). The “author-reader” interjects into the found text of this authoritative history book, inserting her words amongst those of Pakenham's. What becomes apparent, however, is that the text into which she interjects is not The Boer War verbatim, but a dramatically abridged version. The book's primary content has been edited out. What remains is The Boer War whittled down to a litany of Pakenham's parentheses (the history book distilled into an essence of the seemingly non-essential). Into this stream of bracketed matter, the author-reader writes, ruminating on the parenthesis as ethos (as prison and portal, barricade and breach, enclave and embrace). In turn, her ruminations invite reflection on the conundrum of writing history, of writing this history (and, indeed, of writing per se).
- Full Text:
- Date Issued: 2019
Researching mobile phones in the everyday life of the “less connected”: the development of a New Diary Method
- de Lanerolle, Indra, Schoon, Alette, Walton, Marion
- Authors: de Lanerolle, Indra , Schoon, Alette , Walton, Marion
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/160413 , vital:40443 , DOI: 10.1080/23743670.2020.1813785
- Description: This article introduces our mobile diary method, a qualitative method for the study of mobile phone practices. Adapted from the diary methods of psychology and media studies audience research, it is designed to foreground tacit and mundane data about everyday mobile phone practices. The diary interview reconstructs details of the social practices of everyday life that make up each participant’s “yesterday” and situates mobile practices within this account. To illustrate the method, we provide examples from our study, Izolo, that spanned three distinct South African neighbourhoods in different parts of the country and focused on less-connected people.
- Full Text:
- Date Issued: 2020
- Authors: de Lanerolle, Indra , Schoon, Alette , Walton, Marion
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/160413 , vital:40443 , DOI: 10.1080/23743670.2020.1813785
- Description: This article introduces our mobile diary method, a qualitative method for the study of mobile phone practices. Adapted from the diary methods of psychology and media studies audience research, it is designed to foreground tacit and mundane data about everyday mobile phone practices. The diary interview reconstructs details of the social practices of everyday life that make up each participant’s “yesterday” and situates mobile practices within this account. To illustrate the method, we provide examples from our study, Izolo, that spanned three distinct South African neighbourhoods in different parts of the country and focused on less-connected people.
- Full Text:
- Date Issued: 2020
'I always knew I would go to university': a social realist account of student agency: part 1
- Authors: Ellery, Karen , Baxen, Jean
- Date: 2015
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61207 , vital:27990
- Description: Academic development programmes at higher education institutions (HEIs) in South Africa are often underpinned by discourses that view students as deficit. Archer's social realist ontology offers a means of understanding reflexivities and agency of students in the higher education context. Using narrative data and drawing on Archer's (2003) theory of mediation between structure and agency through internal conversations, this study examined the socio-economic background of one particular student, Thando, and his agential journey to arrive at the academy. The analysis reveals Thando has a deliberate and determined stance towards achieving his project of obtaining a tertiary education in order to realise a better life for himself and his family. Despite what could be perceived as constraining socio-cultural conditions, Thando strategically circumvents such restrictions and acts in ways that help him pursue his project. It is argued that student agency needs to take a more central place within academic development programmes in higher education.
- Full Text:
- Date Issued: 2015
- Authors: Ellery, Karen , Baxen, Jean
- Date: 2015
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61207 , vital:27990
- Description: Academic development programmes at higher education institutions (HEIs) in South Africa are often underpinned by discourses that view students as deficit. Archer's social realist ontology offers a means of understanding reflexivities and agency of students in the higher education context. Using narrative data and drawing on Archer's (2003) theory of mediation between structure and agency through internal conversations, this study examined the socio-economic background of one particular student, Thando, and his agential journey to arrive at the academy. The analysis reveals Thando has a deliberate and determined stance towards achieving his project of obtaining a tertiary education in order to realise a better life for himself and his family. Despite what could be perceived as constraining socio-cultural conditions, Thando strategically circumvents such restrictions and acts in ways that help him pursue his project. It is argued that student agency needs to take a more central place within academic development programmes in higher education.
- Full Text:
- Date Issued: 2015
A code theory perspective on science access: clashes and conflicts
- Authors: Ellery, Karen
- Date: 2017
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61196 , vital:27989 , http://dx.doi.org/10.208535/31-3-1306
- Description: Quantitative measures of student performance fail to provide insight into underpinning constraints and enablements to access in science in higher education. This case study of a science foundation course uses Legitimation Code Theory as a theoretical frame and acquisition of recognition and realisation rules as an analytical frame to provide a depth empirical account of student access and success. Results indicate that access to the powerful science knowledge in the production (science) context is dependent on students recognising and realising the knower code of the learning context, which requires of them to be independent and autonomous learners. Such access is not afforded when students prior (school) learning-context relativist code clashes with the required university learning-context knower code. It is argued that a focus on the learning context could be key in enabling access to students whose educational background does not align well with that of the higher education context.
- Full Text:
- Date Issued: 2017
- Authors: Ellery, Karen
- Date: 2017
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/61196 , vital:27989 , http://dx.doi.org/10.208535/31-3-1306
- Description: Quantitative measures of student performance fail to provide insight into underpinning constraints and enablements to access in science in higher education. This case study of a science foundation course uses Legitimation Code Theory as a theoretical frame and acquisition of recognition and realisation rules as an analytical frame to provide a depth empirical account of student access and success. Results indicate that access to the powerful science knowledge in the production (science) context is dependent on students recognising and realising the knower code of the learning context, which requires of them to be independent and autonomous learners. Such access is not afforded when students prior (school) learning-context relativist code clashes with the required university learning-context knower code. It is argued that a focus on the learning context could be key in enabling access to students whose educational background does not align well with that of the higher education context.
- Full Text:
- Date Issued: 2017
Framing of transitional pedagogic practices in the sciences: enabling access
- Authors: Ellery, Karen
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/66381 , vital:28942 , https://doi.org/10.1080/13562517.2017.1319812
- Description: publisher version , Educational literature shows that students from working-class backgrounds are significantly less likely to persist to completion in higher education than middle-class students. This paper draws theoretically and analytically on Bernstein’s ([1990. Class, Codes and Control, Volume IV: The Structuring of Pedagogic Discourse. London: Routledge; 2000. Pedagogy, Symbolic Control, and Identity: Theory, Research, Critique. Lanham: Rowman and Littlefield]) thesis that, through differential framing of pedagogic practices, the curriculum has capacity to accommodate all groups of students. Pedagogic practices in both a science foundation course and four first-year mainstream science courses in a higher education institution in the South African context are examined. Whilst the foundation course exhibits modalities that generally favour access, the mainstream courses have some modalities that appear to be constraining. It is argued from a social justice perspective that holistic curriculum transformations that better enable epistemic transitions are an urgent imperative, and that consideration of differential framing of pedagogic modalities offer a close-up empirical means of conceptualising such reforms.
- Full Text: false
- Date Issued: 2017
- Authors: Ellery, Karen
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/66381 , vital:28942 , https://doi.org/10.1080/13562517.2017.1319812
- Description: publisher version , Educational literature shows that students from working-class backgrounds are significantly less likely to persist to completion in higher education than middle-class students. This paper draws theoretically and analytically on Bernstein’s ([1990. Class, Codes and Control, Volume IV: The Structuring of Pedagogic Discourse. London: Routledge; 2000. Pedagogy, Symbolic Control, and Identity: Theory, Research, Critique. Lanham: Rowman and Littlefield]) thesis that, through differential framing of pedagogic practices, the curriculum has capacity to accommodate all groups of students. Pedagogic practices in both a science foundation course and four first-year mainstream science courses in a higher education institution in the South African context are examined. Whilst the foundation course exhibits modalities that generally favour access, the mainstream courses have some modalities that appear to be constraining. It is argued from a social justice perspective that holistic curriculum transformations that better enable epistemic transitions are an urgent imperative, and that consideration of differential framing of pedagogic modalities offer a close-up empirical means of conceptualising such reforms.
- Full Text: false
- Date Issued: 2017
A moderate elevation in [CO 2] results in potential hypervirulence on SABBIErica
- Gallagher, Sean, Hill, Jaclyn M, Murugan, N, Botha, Christiaan E J
- Authors: Gallagher, Sean , Hill, Jaclyn M , Murugan, N , Botha, Christiaan E J
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/68835 , vital:29329 , https://doi.org/10.1016/j.sajb.2017.10.010
- Description: The Russian Wheat Aphid (Diuraphis noxia Kurdjumov, 1913) (RWA) is a serious pest of grain crops and is of considerable concern in South Africa, particularly in terms of barley grown specifically for the brewing industry. This paper highlights the effect of a small (50 ppm) increase in [CO2] on the growth rate of the four South African RWA biotypes on the SABBIErica barley cultivar. Controlled environment experiments revealed that the colony growth rate for RWASA4 was significantly lower than SA1 under ambient conditions as well as significantly lower than SA1, SA2 or SA3 under elevated CO2 conditions. The unexpected difference suggested an atypical, non-preferential feeding habit on SABBIErica, for RWASA4. The small RWASA4 colonies inflicted similar morphological damage to the significantly larger RWASA1 – RWASA3 biotype populations — indicative of potential hypervirulence under elevated CO2. The continuous feeding of RWASA biotypes causes damage to the transport system as well as substantial, catastrophic damage to mesophyll chloroplasts as well as mitochondria within the host plant's leaves. The TEM study revealed evidence of sequential/systematic degeneration of chloroplasts and mitochondria with continued aphid feeding, which we suggest is an indication of potential emergent hypervirulence under elevated CO2 conditions.
- Full Text: false
- Date Issued: 2017
- Authors: Gallagher, Sean , Hill, Jaclyn M , Murugan, N , Botha, Christiaan E J
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/68835 , vital:29329 , https://doi.org/10.1016/j.sajb.2017.10.010
- Description: The Russian Wheat Aphid (Diuraphis noxia Kurdjumov, 1913) (RWA) is a serious pest of grain crops and is of considerable concern in South Africa, particularly in terms of barley grown specifically for the brewing industry. This paper highlights the effect of a small (50 ppm) increase in [CO2] on the growth rate of the four South African RWA biotypes on the SABBIErica barley cultivar. Controlled environment experiments revealed that the colony growth rate for RWASA4 was significantly lower than SA1 under ambient conditions as well as significantly lower than SA1, SA2 or SA3 under elevated CO2 conditions. The unexpected difference suggested an atypical, non-preferential feeding habit on SABBIErica, for RWASA4. The small RWASA4 colonies inflicted similar morphological damage to the significantly larger RWASA1 – RWASA3 biotype populations — indicative of potential hypervirulence under elevated CO2. The continuous feeding of RWASA biotypes causes damage to the transport system as well as substantial, catastrophic damage to mesophyll chloroplasts as well as mitochondria within the host plant's leaves. The TEM study revealed evidence of sequential/systematic degeneration of chloroplasts and mitochondria with continued aphid feeding, which we suggest is an indication of potential emergent hypervirulence under elevated CO2 conditions.
- Full Text: false
- Date Issued: 2017