Rhodes University Research Report 2021: a year in review
- Roberts, Jaine, Mantolo, Thumeka, De Vos, Nicole, Nzwanga, Anela
- Authors: Roberts, Jaine , Mantolo, Thumeka , De Vos, Nicole , Nzwanga, Anela
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/473253 , vital:77623 , ISBN , https://www.ru.ac.za/researchgateway/researchexcellence/annualresearchreports/
- Description: From Foreword by Dr Sizwe Mabizela: Rhodes University offers its students, researchers, and collaborators a rich and distinctive intellectual space. One of its differentiators is that it is the only South African research intensive university situated in a rural area. Moreover, Rhodes University is located in an impoverished region bedevilled with high levels of poverty and unemployment. This relatively unique characteristic has significant implications for the way its mandate as a research-led institution is fulfilled, and will continue to be fulfilled in the future. The relatively unique context of Rhodes University is played out in the nexus of research, teaching and learning, and community engagement. Engaged research is a significant feature of our knowledge production, and we strive to make ourselves simultaneously locally responsive and globally connected. The award by the Talloires Global Network of Engaged Universities of the prestigious MacJannet Prize to Rhodes University’s Nine-Tenths Programme in 2021 was wonderful affirmation of our strategy to be locally impactful while also being globally influential.
- Full Text:
- Date Issued: 2021
- Authors: Roberts, Jaine , Mantolo, Thumeka , De Vos, Nicole , Nzwanga, Anela
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/473253 , vital:77623 , ISBN , https://www.ru.ac.za/researchgateway/researchexcellence/annualresearchreports/
- Description: From Foreword by Dr Sizwe Mabizela: Rhodes University offers its students, researchers, and collaborators a rich and distinctive intellectual space. One of its differentiators is that it is the only South African research intensive university situated in a rural area. Moreover, Rhodes University is located in an impoverished region bedevilled with high levels of poverty and unemployment. This relatively unique characteristic has significant implications for the way its mandate as a research-led institution is fulfilled, and will continue to be fulfilled in the future. The relatively unique context of Rhodes University is played out in the nexus of research, teaching and learning, and community engagement. Engaged research is a significant feature of our knowledge production, and we strive to make ourselves simultaneously locally responsive and globally connected. The award by the Talloires Global Network of Engaged Universities of the prestigious MacJannet Prize to Rhodes University’s Nine-Tenths Programme in 2021 was wonderful affirmation of our strategy to be locally impactful while also being globally influential.
- Full Text:
- Date Issued: 2021
Rural Tourism and Inclusive Development in Port St. Johns - South Africa
- Acha-Anyi, Paul Nkemngu, Ndolose, Ludwe, Solomon, Khunou Pula
- Authors: Acha-Anyi, Paul Nkemngu , Ndolose, Ludwe , Solomon, Khunou Pula
- Date: 2021
- Subjects: Rural tourism Community Inclusive development; Sustainable development Article
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/7023 , vital:52758 , xlink:href=":https://doi.org/10.46222/ajhtl.19770720.197"
- Description: The purpose of this study was to explore ways of achieving an inclusive approach to tourism development in rural communities. Although tourism has generally been recommended as a means of orchestrating development in rural communities, achieving this laudable goal has often been illusive due to the fragmented approach adopted by tourism stakeholders. An exploratory quantitative research approach was adopted by using a structured survey instrument to generate 307 valid responses from community members in Port St. John in the Eastern Cape Province (ECP) of South Africa. Results obtained reveal similarities and some differences based on demographic characteristics with regards to the benefits of rural tourism to the community. Importantly, the study illuminates the fragmented way in which residents perceive tourism benefits, both from a gender perspective and personal benefit versus community dichotomy. The paper discusses policy as well as practical local economic development implications. Keywords: Rural tourism; community; Port St. Johns; inclusive development; sustainable development
- Full Text:
- Date Issued: 2021
- Authors: Acha-Anyi, Paul Nkemngu , Ndolose, Ludwe , Solomon, Khunou Pula
- Date: 2021
- Subjects: Rural tourism Community Inclusive development; Sustainable development Article
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/7023 , vital:52758 , xlink:href=":https://doi.org/10.46222/ajhtl.19770720.197"
- Description: The purpose of this study was to explore ways of achieving an inclusive approach to tourism development in rural communities. Although tourism has generally been recommended as a means of orchestrating development in rural communities, achieving this laudable goal has often been illusive due to the fragmented approach adopted by tourism stakeholders. An exploratory quantitative research approach was adopted by using a structured survey instrument to generate 307 valid responses from community members in Port St. John in the Eastern Cape Province (ECP) of South Africa. Results obtained reveal similarities and some differences based on demographic characteristics with regards to the benefits of rural tourism to the community. Importantly, the study illuminates the fragmented way in which residents perceive tourism benefits, both from a gender perspective and personal benefit versus community dichotomy. The paper discusses policy as well as practical local economic development implications. Keywords: Rural tourism; community; Port St. Johns; inclusive development; sustainable development
- Full Text:
- Date Issued: 2021
SANCDB: an update on South African natural compounds and their readily available analogs
- Diallo, Bakary N, Glenister, Michael, Musyoka, Thommas M, Lobb, Kevin A, Taştan Bishop, Özlem
- Authors: Diallo, Bakary N , Glenister, Michael , Musyoka, Thommas M , Lobb, Kevin A , Taştan Bishop, Özlem
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/451154 , vital:75023 , xlink:href="https://doi.org/10.1186/s13321-021-00514-2"
- Description: The dimeric dihydropyrimidine dehydrogenase (DPD), metalloenzyme, an adjunct anti-cancer drug target, contains highly specialized 4 × Fe2+4S2−4 clusters per chain. These clusters facilitate the catalysis of the rate-limiting step in the pyrimidine degradation pathway through a harmonized electron transfer cascade that triggers a redox catabolic reaction. In the process, the bulk of the administered 5-fluorouracil (5-FU) cancer drug is inactivated, while a small proportion is activated to nucleic acid antimetabolites. The occurrence of missense mutations in DPD protein within the general population, including those of African descent, has adverse toxicity effects due to altered 5-FU metabolism. Thus, deciphering mutation effects on protein structure and function is vital, especially for precision medicine purposes. We previously proposed combining molecular dynamics (MD) and dynamic residue network (DRN) analysis to decipher the molecular mechanisms of missense mutations in other proteins. However, the presence of Fe2+4S2−4 clusters in DPD poses a challenge for such in silico studies. The existing AMBER force field parameters cannot accurately describe the Fe2+ center coordination exhibited by this enzyme. Therefore, this study aimed to derive AMBER force field parameters for DPD enzyme Fe2+ centers, using the original Seminario method and the collation features Visual Force Field Derivation Toolkit as a supportive approach. All-atom MD simulations were performed to validate the results. Both approaches generated similar force field parameters, which accurately described the human DPD protein Fe2+4S2−4 cluster architecture. This information is crucial and opens new avenues for in silico cancer pharmacogenomics and drug discovery related research on 5-FU drug efficacy and toxicity issues.
- Full Text:
- Date Issued: 2021
- Authors: Diallo, Bakary N , Glenister, Michael , Musyoka, Thommas M , Lobb, Kevin A , Taştan Bishop, Özlem
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/451154 , vital:75023 , xlink:href="https://doi.org/10.1186/s13321-021-00514-2"
- Description: The dimeric dihydropyrimidine dehydrogenase (DPD), metalloenzyme, an adjunct anti-cancer drug target, contains highly specialized 4 × Fe2+4S2−4 clusters per chain. These clusters facilitate the catalysis of the rate-limiting step in the pyrimidine degradation pathway through a harmonized electron transfer cascade that triggers a redox catabolic reaction. In the process, the bulk of the administered 5-fluorouracil (5-FU) cancer drug is inactivated, while a small proportion is activated to nucleic acid antimetabolites. The occurrence of missense mutations in DPD protein within the general population, including those of African descent, has adverse toxicity effects due to altered 5-FU metabolism. Thus, deciphering mutation effects on protein structure and function is vital, especially for precision medicine purposes. We previously proposed combining molecular dynamics (MD) and dynamic residue network (DRN) analysis to decipher the molecular mechanisms of missense mutations in other proteins. However, the presence of Fe2+4S2−4 clusters in DPD poses a challenge for such in silico studies. The existing AMBER force field parameters cannot accurately describe the Fe2+ center coordination exhibited by this enzyme. Therefore, this study aimed to derive AMBER force field parameters for DPD enzyme Fe2+ centers, using the original Seminario method and the collation features Visual Force Field Derivation Toolkit as a supportive approach. All-atom MD simulations were performed to validate the results. Both approaches generated similar force field parameters, which accurately described the human DPD protein Fe2+4S2−4 cluster architecture. This information is crucial and opens new avenues for in silico cancer pharmacogenomics and drug discovery related research on 5-FU drug efficacy and toxicity issues.
- Full Text:
- Date Issued: 2021
Scenario development
- Hichert, Tanya, Biggs, Reinette, de Vos, Alta, Peterson, Garry
- Authors: Hichert, Tanya , Biggs, Reinette , de Vos, Alta , Peterson, Garry
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/433857 , vital:73005 , ISBN 9781000401516 , https://library.oapen.org/handle/20.500.12657/49560
- Description: Scenario development connects to various other methods, but in particular to futures analysis (Chapter 10) as it is also regarded as a futures analysis method. It warrants a separate chapter in addition to the other futures analysis methods (described in Chapter 10) because of its importance and widespread use. Scenario development also connects to facilitated dialogues (Chapter 9), serious games (Chapter 12), participatory modelling and planning (Chapter 13), dynamical systems modelling (Chapter 26) and agent-based modelling (Chapter 28).
- Full Text:
- Date Issued: 2021
- Authors: Hichert, Tanya , Biggs, Reinette , de Vos, Alta , Peterson, Garry
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/433857 , vital:73005 , ISBN 9781000401516 , https://library.oapen.org/handle/20.500.12657/49560
- Description: Scenario development connects to various other methods, but in particular to futures analysis (Chapter 10) as it is also regarded as a futures analysis method. It warrants a separate chapter in addition to the other futures analysis methods (described in Chapter 10) because of its importance and widespread use. Scenario development also connects to facilitated dialogues (Chapter 9), serious games (Chapter 12), participatory modelling and planning (Chapter 13), dynamical systems modelling (Chapter 26) and agent-based modelling (Chapter 28).
- Full Text:
- Date Issued: 2021
Seasonal metabolic adjustments in an avian evolutionary relict restricted to mountain habitat
- Oswald, Krista N, Lee, Alan T K, Smit, Ben
- Authors: Oswald, Krista N , Lee, Alan T K , Smit, Ben
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/441638 , vital:73903 , https://doi.org/10.1016/j.jtherbio.2020.102815
- Description: For endotherms, maintaining body temperature during cold winters is energetically costly.Greater increase in winter maximum thermogenic capacity (Msum) has typically been correlated with improved cold tolerance. However, seasonal studies have shown equivocal direction change in basal metabolic rate (BMR) in winter, perhaps explained by latitude or phylogeny. We examined seasonal metabolic responses in the Cape rockjumper (Chaetops frenatus; “rockjumper”), a range-restricted mountain bird. We hypothesized that, given their mountain habitat preference, rockjumpers would be physiologically specialized for cooler air temperatures compared to other subtropical passerines. We measured body condition (using the ratio of Mb/tarsus), BMR, and Msum, in wild-living rockjumpers during winter and summer (n = 12 adults in winter –– 4 females, 8 males; n = 12 adults in summer –– 6 females, 6 males). We found birds had lesser BMR and thermal conductance, and greater Msum and body condition, in winter compared to summer. .
- Full Text:
- Date Issued: 2021
- Authors: Oswald, Krista N , Lee, Alan T K , Smit, Ben
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/441638 , vital:73903 , https://doi.org/10.1016/j.jtherbio.2020.102815
- Description: For endotherms, maintaining body temperature during cold winters is energetically costly.Greater increase in winter maximum thermogenic capacity (Msum) has typically been correlated with improved cold tolerance. However, seasonal studies have shown equivocal direction change in basal metabolic rate (BMR) in winter, perhaps explained by latitude or phylogeny. We examined seasonal metabolic responses in the Cape rockjumper (Chaetops frenatus; “rockjumper”), a range-restricted mountain bird. We hypothesized that, given their mountain habitat preference, rockjumpers would be physiologically specialized for cooler air temperatures compared to other subtropical passerines. We measured body condition (using the ratio of Mb/tarsus), BMR, and Msum, in wild-living rockjumpers during winter and summer (n = 12 adults in winter –– 4 females, 8 males; n = 12 adults in summer –– 6 females, 6 males). We found birds had lesser BMR and thermal conductance, and greater Msum and body condition, in winter compared to summer. .
- Full Text:
- Date Issued: 2021
Segmentation of Tuta Absoluta’s Damage on Tomato Plants: A Computer Vision Approach
- Loyani, Loyani K, Bradshaw, Karen L, Machuze, Dina
- Authors: Loyani, Loyani K , Bradshaw, Karen L , Machuze, Dina
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/440313 , vital:73765 , xlink:href="https://doi.org/10.1080/08839514.2021.1972254"
- Description: Tuta absoluta is a major threat to tomato production, causing losses ranging from 80% to 100% when not properly managed. Early detection of T. absoluta’s effects on tomato plants is important in controlling and preventing severe pest damage on tomatoes. In this study, we propose semantic and instance segmentation models based on U-Net and Mask RCNN, deep Convolutional Neural Networks (CNN) to segment the effects of T. absoluta on tomato leaf images at pixel level using field data. The results show that Mask RCNN achieved a mean Average Precision of 85.67%, while the U-Net model achieved an Intersection over Union of 78.60% and Dice coefficient of 82.86%. Both models can precisely generate segmentations indicating the exact spots/areas infested by T. absoluta in tomato leaves. The model will help farmers and extension officers make informed decisions to improve tomato productivity and rescue farmers from annual losses.
- Full Text:
- Date Issued: 2021
- Authors: Loyani, Loyani K , Bradshaw, Karen L , Machuze, Dina
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/440313 , vital:73765 , xlink:href="https://doi.org/10.1080/08839514.2021.1972254"
- Description: Tuta absoluta is a major threat to tomato production, causing losses ranging from 80% to 100% when not properly managed. Early detection of T. absoluta’s effects on tomato plants is important in controlling and preventing severe pest damage on tomatoes. In this study, we propose semantic and instance segmentation models based on U-Net and Mask RCNN, deep Convolutional Neural Networks (CNN) to segment the effects of T. absoluta on tomato leaf images at pixel level using field data. The results show that Mask RCNN achieved a mean Average Precision of 85.67%, while the U-Net model achieved an Intersection over Union of 78.60% and Dice coefficient of 82.86%. Both models can precisely generate segmentations indicating the exact spots/areas infested by T. absoluta in tomato leaves. The model will help farmers and extension officers make informed decisions to improve tomato productivity and rescue farmers from annual losses.
- Full Text:
- Date Issued: 2021
Sex, gender and Uvalo/Letswalo centred spirituality
- Magadla, Siphokazi, Magoqwana, Babalwa, Motsemme, Nthabiseng, Mohoto, Lieketso
- Authors: Magadla, Siphokazi , Magoqwana, Babalwa , Motsemme, Nthabiseng , Mohoto, Lieketso
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/298663 , vital:57725 , xlink:href="https://doi.org/10.1080/02589001.2021.1909711"
- Description: In Male Daughters, Female Husbands (1987) Amadiume argues that the female orientation of Nnobi society and its emphasis on female industriousness is ‘derived from goddess Idemili – the ancestral religious deity’ (27). While Christianity dominates the outlook and conservatism of the post-colonial African state, we are seeing a growing public presence of African spiritual practitioners in southern Africa. The interview with Lieketso Gogo Mapitsi Mohoto reflects on her journey of becoming a healer. She uses the concept of ‘uvalo' to argue for deeper connected spiritual awareness within this practice of healing. Using the Nguni concept of uvalo, she refers to the fluid meaning of intuition also known as Umbilini among Xhosa-speaking people, while Sesotho speakers call it Letswalo. This intimate connection with the Divine can sometimes mean a sense of fear for ordinary people, while it promotes a deep sense of knowing for the spiritually conscious. Gogo Mapitsi's connections between spirituality and land, speak to Amadiume’s matrifocal understanding of productivity as linked to the goddess Idemili in Nnobi histories. Gogo Mapitsi reminds us that the multiple health, economic, psychological crises we face today are linked 'to how uvalo works.' She tells us that the 'cultivation of that inner knowing and the cultivation of trust in that knowing' is central to how a Sangoma understands and responds to the needs of their society.
- Full Text:
- Date Issued: 2021
- Authors: Magadla, Siphokazi , Magoqwana, Babalwa , Motsemme, Nthabiseng , Mohoto, Lieketso
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/298663 , vital:57725 , xlink:href="https://doi.org/10.1080/02589001.2021.1909711"
- Description: In Male Daughters, Female Husbands (1987) Amadiume argues that the female orientation of Nnobi society and its emphasis on female industriousness is ‘derived from goddess Idemili – the ancestral religious deity’ (27). While Christianity dominates the outlook and conservatism of the post-colonial African state, we are seeing a growing public presence of African spiritual practitioners in southern Africa. The interview with Lieketso Gogo Mapitsi Mohoto reflects on her journey of becoming a healer. She uses the concept of ‘uvalo' to argue for deeper connected spiritual awareness within this practice of healing. Using the Nguni concept of uvalo, she refers to the fluid meaning of intuition also known as Umbilini among Xhosa-speaking people, while Sesotho speakers call it Letswalo. This intimate connection with the Divine can sometimes mean a sense of fear for ordinary people, while it promotes a deep sense of knowing for the spiritually conscious. Gogo Mapitsi's connections between spirituality and land, speak to Amadiume’s matrifocal understanding of productivity as linked to the goddess Idemili in Nnobi histories. Gogo Mapitsi reminds us that the multiple health, economic, psychological crises we face today are linked 'to how uvalo works.' She tells us that the 'cultivation of that inner knowing and the cultivation of trust in that knowing' is central to how a Sangoma understands and responds to the needs of their society.
- Full Text:
- Date Issued: 2021
Skill and Earnings Amongst Golfers on the Southern‐African Sunshine Tour
- Botha, Ferdi, Fraser, Gavin C G, Rhoads, Thomas A
- Authors: Botha, Ferdi , Fraser, Gavin C G , Rhoads, Thomas A
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/473021 , vital:77599 , https://doi.org/10.1111/saje.12269
- Description: This paper estimates the determinants of the success of golfers on the Southern‐African Sunshine Tour. Using a simultaneous‐quantile regression approach and real earnings per tournament as a measure of success, a higher greens‐in‐regulation percentage and a lower number of putts per greens‐in‐regulation are associated with higher earnings. Calculations of the value of the marginal product of key golfer skills suggest a dynamic human capital acquisition process for many Sunshine Tour golfers at the earliest stages of their professional golf career.
- Full Text:
- Date Issued: 2021
- Authors: Botha, Ferdi , Fraser, Gavin C G , Rhoads, Thomas A
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/473021 , vital:77599 , https://doi.org/10.1111/saje.12269
- Description: This paper estimates the determinants of the success of golfers on the Southern‐African Sunshine Tour. Using a simultaneous‐quantile regression approach and real earnings per tournament as a measure of success, a higher greens‐in‐regulation percentage and a lower number of putts per greens‐in‐regulation are associated with higher earnings. Calculations of the value of the marginal product of key golfer skills suggest a dynamic human capital acquisition process for many Sunshine Tour golfers at the earliest stages of their professional golf career.
- Full Text:
- Date Issued: 2021
Skills for communicating severe acute respiratory syndrome-coronavirus-2 result to patients and/or relatives
- Adeniyi, Oladele Vincent, Kayembe, Dominique K
- Authors: Adeniyi, Oladele Vincent , Kayembe, Dominique K
- Date: 2021
- Subjects: COVID-19 Structured model Medical consultation Article
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/7236 , vital:53095 , xlink:href="https://doi.org/10.4102/safp.v63i1.5221"
- Description: Clinicians notify positive results of the severe acute respiratory syndrome coronavirus-2 polymerase chain reaction to patients and/or relatives, whilst short message service (SMS) has been adopted as a means of disseminating negative results. Therefore, clinicians should be adequately equipped to provide telephonic consultation whilst delivering a positive test result to patients. The news of the coronavirus disease 2019 (COVID-19) test result often invokes fear of impending death in patients, especially the elderlies and those with comorbidities. In addition, several survivors have reported persistent symptoms and COVID-19-related stigma, which precludes them from immediate re-integration into their workplaces. Consequently, COVID-19 results are perceived as bad news by the members of the public. This article justifies why COVID-19 test results are bad news and also discusses the notification steps to follow when delivering COVID-19 results, whilst also addressing patients’ immediate concerns. The article concludes by highlighting an important safety net for COVID-19 patients and the attending clinician.
- Full Text:
- Date Issued: 2021
- Authors: Adeniyi, Oladele Vincent , Kayembe, Dominique K
- Date: 2021
- Subjects: COVID-19 Structured model Medical consultation Article
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/7236 , vital:53095 , xlink:href="https://doi.org/10.4102/safp.v63i1.5221"
- Description: Clinicians notify positive results of the severe acute respiratory syndrome coronavirus-2 polymerase chain reaction to patients and/or relatives, whilst short message service (SMS) has been adopted as a means of disseminating negative results. Therefore, clinicians should be adequately equipped to provide telephonic consultation whilst delivering a positive test result to patients. The news of the coronavirus disease 2019 (COVID-19) test result often invokes fear of impending death in patients, especially the elderlies and those with comorbidities. In addition, several survivors have reported persistent symptoms and COVID-19-related stigma, which precludes them from immediate re-integration into their workplaces. Consequently, COVID-19 results are perceived as bad news by the members of the public. This article justifies why COVID-19 test results are bad news and also discusses the notification steps to follow when delivering COVID-19 results, whilst also addressing patients’ immediate concerns. The article concludes by highlighting an important safety net for COVID-19 patients and the attending clinician.
- Full Text:
- Date Issued: 2021
Snapshot Safari: A large-scale collaborative to monitor Africa's remarkable biodiversity
- Pardo, Lain E, Bombaci, Sara, Huebner, Sarah E, Somers, Michael J, Fritz, Herve, Downs, Colleen, Guthmann, Abby, Hetem, Robyn S, Keith, Mark, le Roux, Aliza, Mgqatsa, Nokubonga, Packer, Craig, Palmer, Meredith S, Parker, Daniel M, Peel, Mike, Slotow, Rob, Strauss, W. Maartin, Swanepoel, Lourens, Tambling, Craig J, Tsie, Nairobi, Vermeulen, Mika, Willi, Marco, Jachowski, David S, Venter, Jan A
- Authors: Pardo, Lain E , Bombaci, Sara , Huebner, Sarah E , Somers, Michael J , Fritz, Herve , Downs, Colleen , Guthmann, Abby , Hetem, Robyn S , Keith, Mark , le Roux, Aliza , Mgqatsa, Nokubonga , Packer, Craig , Palmer, Meredith S , Parker, Daniel M , Peel, Mike , Slotow, Rob , Strauss, W. Maartin , Swanepoel, Lourens , Tambling, Craig J , Tsie, Nairobi , Vermeulen, Mika , Willi, Marco , Jachowski, David S , Venter, Jan A
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/462669 , vital:76324 , xlink:href="http://dx.doi.org/10.17159/sajs.2021/8134"
- Description: Nature is experiencing degradation and extinction rates never recorded before in the history of Earth. Consequently, continuous large-scale monitoring programmes are critical, not only to provide insights into population trends but also to aid in understanding factors associated with altering population dynamics at various temporal and spatial scales. Continuous monitoring is important not only for tracking rare or threatened species but also to detect the increase of potentially invasive species4, and the trends in the populations of common species, which in some regions are declining even more rapidly than are rare species. The combination of citizen science and cutting-edge technologies has improved monitoring programmes. In this regard, camera traps have become a popular tool to engage with society while obtaining accurate scientific data. The importance of advances in technological monitoring has even been highlighted by the United Nations Environment Programme (UNEP) through the proposed 'Digital Ecosystem framework', a complex distributed network or interconnected socio-technological system.
- Full Text:
- Date Issued: 2021
- Authors: Pardo, Lain E , Bombaci, Sara , Huebner, Sarah E , Somers, Michael J , Fritz, Herve , Downs, Colleen , Guthmann, Abby , Hetem, Robyn S , Keith, Mark , le Roux, Aliza , Mgqatsa, Nokubonga , Packer, Craig , Palmer, Meredith S , Parker, Daniel M , Peel, Mike , Slotow, Rob , Strauss, W. Maartin , Swanepoel, Lourens , Tambling, Craig J , Tsie, Nairobi , Vermeulen, Mika , Willi, Marco , Jachowski, David S , Venter, Jan A
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/462669 , vital:76324 , xlink:href="http://dx.doi.org/10.17159/sajs.2021/8134"
- Description: Nature is experiencing degradation and extinction rates never recorded before in the history of Earth. Consequently, continuous large-scale monitoring programmes are critical, not only to provide insights into population trends but also to aid in understanding factors associated with altering population dynamics at various temporal and spatial scales. Continuous monitoring is important not only for tracking rare or threatened species but also to detect the increase of potentially invasive species4, and the trends in the populations of common species, which in some regions are declining even more rapidly than are rare species. The combination of citizen science and cutting-edge technologies has improved monitoring programmes. In this regard, camera traps have become a popular tool to engage with society while obtaining accurate scientific data. The importance of advances in technological monitoring has even been highlighted by the United Nations Environment Programme (UNEP) through the proposed 'Digital Ecosystem framework', a complex distributed network or interconnected socio-technological system.
- Full Text:
- Date Issued: 2021
Social Cohesion Through Sonic Intervention
- Authors: McConnachie, Boudina E
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/480257 , vital:78411 , ISBN 9781800795846
- Description: Abstract that must end in a full stop.
- Full Text:
- Date Issued: 2021
- Authors: McConnachie, Boudina E
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/480257 , vital:78411 , ISBN 9781800795846
- Description: Abstract that must end in a full stop.
- Full Text:
- Date Issued: 2021
Solar Driven Photocatalytic Activity of Porphyrin Sensitized TiO2
- Otieno, Sebastien, Lanterna, Anabel E, Mack, John, Derese, Solomon, Amuhaya, Edith K, Nyokong, Tebello, Scaiano, Juan C
- Authors: Otieno, Sebastien , Lanterna, Anabel E , Mack, John , Derese, Solomon , Amuhaya, Edith K , Nyokong, Tebello , Scaiano, Juan C
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/190612 , vital:45010 , xlink:href="https://doi.org/10.3390/molecules26113131"
- Description: The absence of a secure long-term sustainable energy supply is recognized as a major worldwide technological challenge. The generation of H2 through photocatalysis is an environmentally friendly alternative that can help solve the energy problem. Thus, the development of semiconductor materials that can absorb solar light is an attractive approach. TiO2 has a wide bandgap that suffers from no activity in the visible spectrum, limiting its use of solar radiation. In this research, the semiconductor absorption profile was extended into the visible region of the solar spectrum by preparing porphyrin-TiO2 (P-TiO2 ) composites of meso-tetra(4-bromophenyl)porphyrin (PP1) and meso-tetra(5-bromo-2-thienyl)porphyrin (PP2) and their In(III), Zn(II) and Ga(III) metal complexes. Density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations were performed on the porphyrins to gain insight into their electron injection capability. The results demonstrate that P-TiO2 systems merit further in-depth study for applications that require efficient photocatalytic H2 generation.
- Full Text:
- Date Issued: 2021
- Authors: Otieno, Sebastien , Lanterna, Anabel E , Mack, John , Derese, Solomon , Amuhaya, Edith K , Nyokong, Tebello , Scaiano, Juan C
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/190612 , vital:45010 , xlink:href="https://doi.org/10.3390/molecules26113131"
- Description: The absence of a secure long-term sustainable energy supply is recognized as a major worldwide technological challenge. The generation of H2 through photocatalysis is an environmentally friendly alternative that can help solve the energy problem. Thus, the development of semiconductor materials that can absorb solar light is an attractive approach. TiO2 has a wide bandgap that suffers from no activity in the visible spectrum, limiting its use of solar radiation. In this research, the semiconductor absorption profile was extended into the visible region of the solar spectrum by preparing porphyrin-TiO2 (P-TiO2 ) composites of meso-tetra(4-bromophenyl)porphyrin (PP1) and meso-tetra(5-bromo-2-thienyl)porphyrin (PP2) and their In(III), Zn(II) and Ga(III) metal complexes. Density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations were performed on the porphyrins to gain insight into their electron injection capability. The results demonstrate that P-TiO2 systems merit further in-depth study for applications that require efficient photocatalytic H2 generation.
- Full Text:
- Date Issued: 2021
Specialty Grand Challenges in Urban Agriculture: Ecological and Social Approaches to Sustainability Transformations
- Zimmerer, Karl S, Bell, Martha G, Chirisa, Innocent, Duvall, Chris S, Egerer, Monika, Hung, Po-Yi, Lerner, Amy M, Shackleton, Charlie M, Ward, James David, Yacamán Ochoa, Carolina
- Authors: Zimmerer, Karl S , Bell, Martha G , Chirisa, Innocent , Duvall, Chris S , Egerer, Monika , Hung, Po-Yi , Lerner, Amy M , Shackleton, Charlie M , Ward, James David , Yacamán Ochoa, Carolina
- Date: 2021
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/175779 , vital:42623 , https://doi.org/10.3389/fsufs.2021.668561
- Description: This synopsis of the Grand Challenges of Urban Agriculture (UA) is framed by the urgent need to understand and strengthen the expanding yet highly diverse roles of UA amid rapid global urbanization, failures of predominant food systems, and crises in systems of physical and mental health. More than half of humanity lives in cities today and by 2030 this is projected to grow to 60.4 percent, ~5 billion people (UN Habitat, 2020). More than 90 percent of urban demographic increase is anticipated to take place in the developing world.
- Full Text:
- Date Issued: 2021
- Authors: Zimmerer, Karl S , Bell, Martha G , Chirisa, Innocent , Duvall, Chris S , Egerer, Monika , Hung, Po-Yi , Lerner, Amy M , Shackleton, Charlie M , Ward, James David , Yacamán Ochoa, Carolina
- Date: 2021
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/175779 , vital:42623 , https://doi.org/10.3389/fsufs.2021.668561
- Description: This synopsis of the Grand Challenges of Urban Agriculture (UA) is framed by the urgent need to understand and strengthen the expanding yet highly diverse roles of UA amid rapid global urbanization, failures of predominant food systems, and crises in systems of physical and mental health. More than half of humanity lives in cities today and by 2030 this is projected to grow to 60.4 percent, ~5 billion people (UN Habitat, 2020). More than 90 percent of urban demographic increase is anticipated to take place in the developing world.
- Full Text:
- Date Issued: 2021
Spectral Resistance in Andile Khumalo's Bells Die Out
- Authors: Fourie, William
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/484438 , vital:78906 , xlink:href="10.1353/pnm.2021.0013"
- Description: “It was remarked wittily . . . that the black South African award-winner in the “Serious” Music genre had written Central European intellectual music, while one of the white South African award-winners in the Jazz/Popular Music genre had written Zimbabwean folk-music!”—Mzilikazi Khumalo. Perhaps a witticism but certainly a damning statement on the racialized cultural legacy of the apartheid regime, this remark was made in 2002 when composer Andile Khumalo won a number of awards at the Southern African Music Rights Organization’s Overseas Scholarship Competition. The irony offered by the commentator’s locution has to do with the reversal of expectations: a decade after the end of the apartheid regime, under which such an occurrence would have been impossible, it is still striking that a black composer could win prizes for writing Western art music. During the preceding half-century, after all, this music was seen as the “bounteous heritage of the white people,” and artificial racial-cultural demarcations attempted to prohibit composing across the “racial line.” African music was for Africans, the cultural ideology of separate development decreed, and European music was for whites.
- Full Text:
- Date Issued: 2021
- Authors: Fourie, William
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/484438 , vital:78906 , xlink:href="10.1353/pnm.2021.0013"
- Description: “It was remarked wittily . . . that the black South African award-winner in the “Serious” Music genre had written Central European intellectual music, while one of the white South African award-winners in the Jazz/Popular Music genre had written Zimbabwean folk-music!”—Mzilikazi Khumalo. Perhaps a witticism but certainly a damning statement on the racialized cultural legacy of the apartheid regime, this remark was made in 2002 when composer Andile Khumalo won a number of awards at the Southern African Music Rights Organization’s Overseas Scholarship Competition. The irony offered by the commentator’s locution has to do with the reversal of expectations: a decade after the end of the apartheid regime, under which such an occurrence would have been impossible, it is still striking that a black composer could win prizes for writing Western art music. During the preceding half-century, after all, this music was seen as the “bounteous heritage of the white people,” and artificial racial-cultural demarcations attempted to prohibit composing across the “racial line.” African music was for Africans, the cultural ideology of separate development decreed, and European music was for whites.
- Full Text:
- Date Issued: 2021
Strategies utilised in translating children’s stories from English into isiXhosa
- Authors: Madolo, Yolisa
- Date: 2021
- Subjects: Children Xhosa Grammar, Comparative and general--Ideophone Children, Black, in literature Article
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/7010 , vital:52637 , xlink:href="https://doi.org/10.1080/02572117.2021.2010919"
- Description: Translation scholars suggest various strategies for dealing with equivalence and non-equivalence. These popular strategies address non-equivalence, the converse of equivalence, that is commonly found in translation. Nonequivalence is found at word, phrase, sentence, and pragmatic levels. Not a great deal of research has been done in the translation strategies used between English and South African indigenous languages. It is possible that these languages employ some strategies that are not listed under current, popular strategies. These strategies may be necessitated by the linguistic and historical differences between English and African languages. For instance, what is acceptable in question form in English might be more suitable as a statement in African languages, specifically isiXhosa. The strategies to be presented are from an ongoing study of selected children’s stories translated from English into isiXhosa. The aim of the study is to scrutinise some of the strategies used by the translators in their translations. Preliminary results reveal that translators from English into isiXhosa may explicitate or implicitate the translation using various strategies like addition, infusing target language culture, translating source language idiom by another figure of speech or even omitting some words. This may have minimal or significant impact on the transferred message.
- Full Text:
- Date Issued: 2021
- Authors: Madolo, Yolisa
- Date: 2021
- Subjects: Children Xhosa Grammar, Comparative and general--Ideophone Children, Black, in literature Article
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/7010 , vital:52637 , xlink:href="https://doi.org/10.1080/02572117.2021.2010919"
- Description: Translation scholars suggest various strategies for dealing with equivalence and non-equivalence. These popular strategies address non-equivalence, the converse of equivalence, that is commonly found in translation. Nonequivalence is found at word, phrase, sentence, and pragmatic levels. Not a great deal of research has been done in the translation strategies used between English and South African indigenous languages. It is possible that these languages employ some strategies that are not listed under current, popular strategies. These strategies may be necessitated by the linguistic and historical differences between English and African languages. For instance, what is acceptable in question form in English might be more suitable as a statement in African languages, specifically isiXhosa. The strategies to be presented are from an ongoing study of selected children’s stories translated from English into isiXhosa. The aim of the study is to scrutinise some of the strategies used by the translators in their translations. Preliminary results reveal that translators from English into isiXhosa may explicitate or implicitate the translation using various strategies like addition, infusing target language culture, translating source language idiom by another figure of speech or even omitting some words. This may have minimal or significant impact on the transferred message.
- Full Text:
- Date Issued: 2021
Strengthening Environment and Sustainability Subject Knowledge Curriculum Challenges and Opportunities
- Schudel, Ingrid J, Lotz-Sisitka, Heila
- Authors: Schudel, Ingrid J , Lotz-Sisitka, Heila
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/435045 , vital:73126 , ISBN 9781928502241 , https://library.oapen.org/handle/20.500.12657/64082
- Description: This chapter serves as a positioning paper for the chapters that follow in which different environment and sustainability knowledge foci will be explored in the South African Curriculum Assessment Policy Statements (CAPS). As a series of interconnected and cross-cutting complexities, environment and sustainability content knowledge has relevance for, and is widely distributed across, different phases and subjects in the school curriculum (see discussion of environmental content knowledge in Schudel and Lotz-Sisitka, Chapter 1; Lotz-Sisitka et al., Chapter 6; Msezane, Chapter 7). Knowledge that makes its way into education curricula and teaching is produced within the wider scientific context. Bernstein (2000), in his theory of the pedagogical device, refers to this as the ‘Field of Production’. A significant knowledge-producing community for sustainability concerns is the global change research community (international and national)(South Africa DST 2010). Examining their research outputs and discourses can provide important insights for the development of knowledge in what Bernstein names ‘regions’, where singular disciplines such as Science (eg climate sciences/biodiversity sciences/water sciences/health sciences), come together with other singular disciplines such as education. Bernstein suggests that a first level of knowledge recontextualisation in the Field of Production occurs in these regions (eg where environmental educators or science educators recontextualise the knowledge of scientists).
- Full Text:
- Date Issued: 2021
- Authors: Schudel, Ingrid J , Lotz-Sisitka, Heila
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/435045 , vital:73126 , ISBN 9781928502241 , https://library.oapen.org/handle/20.500.12657/64082
- Description: This chapter serves as a positioning paper for the chapters that follow in which different environment and sustainability knowledge foci will be explored in the South African Curriculum Assessment Policy Statements (CAPS). As a series of interconnected and cross-cutting complexities, environment and sustainability content knowledge has relevance for, and is widely distributed across, different phases and subjects in the school curriculum (see discussion of environmental content knowledge in Schudel and Lotz-Sisitka, Chapter 1; Lotz-Sisitka et al., Chapter 6; Msezane, Chapter 7). Knowledge that makes its way into education curricula and teaching is produced within the wider scientific context. Bernstein (2000), in his theory of the pedagogical device, refers to this as the ‘Field of Production’. A significant knowledge-producing community for sustainability concerns is the global change research community (international and national)(South Africa DST 2010). Examining their research outputs and discourses can provide important insights for the development of knowledge in what Bernstein names ‘regions’, where singular disciplines such as Science (eg climate sciences/biodiversity sciences/water sciences/health sciences), come together with other singular disciplines such as education. Bernstein suggests that a first level of knowledge recontextualisation in the Field of Production occurs in these regions (eg where environmental educators or science educators recontextualise the knowledge of scientists).
- Full Text:
- Date Issued: 2021
Supporting Student Teachers to Teach Catchment and River Management in Geography
- Authors: Heath, Gavin , O’Donoghue, R
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/435167 , vital:73135 , ISBN 9781928502241 , https://library.oapen.org/handle/20.500.12657/64082
- Description: The inclusion of new environmental knowledge in the South African Geography Curriculum and Assessment Policy Statement (CAPS) has meant that many student teachers are unprepared to teach a systemic process like catchment and river management, which concerns the management of water catchment basins and the rivers within. New environ-mental knowledge, by definition, involves systems thinking towards a grasp of social-ecological systems, notably cause and effect processes, and circularity within a system. A so-cial-ecological system is the complex relationship between the social and ecological processes on a parcel of land. The need for such systems thinking is implicit in the catchment and river management component of the CAPS (South Africa DBE 2011). The teaching of a case study of a catchment management system (which is the management system that governs a water catchment basin) has never been included in any previous curriculum. Water management has devel-oped on a widening scale into the 21st century in South Afri-ca, but there was little comprehensive data on catchment management systems until 2017. It was only in July 2017 that a draft catchment management strategy was published. Hence it is not surprising that no curriculum case studies ex-ist since there was no data to base them on (Meissner et al. 2017). An internet search in June 2020 uncovered no trace of any catchment management strategy for the more densely populated and, arguably, more significant eastern catch-ments of the country.
- Full Text:
- Date Issued: 2021
- Authors: Heath, Gavin , O’Donoghue, R
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/435167 , vital:73135 , ISBN 9781928502241 , https://library.oapen.org/handle/20.500.12657/64082
- Description: The inclusion of new environmental knowledge in the South African Geography Curriculum and Assessment Policy Statement (CAPS) has meant that many student teachers are unprepared to teach a systemic process like catchment and river management, which concerns the management of water catchment basins and the rivers within. New environ-mental knowledge, by definition, involves systems thinking towards a grasp of social-ecological systems, notably cause and effect processes, and circularity within a system. A so-cial-ecological system is the complex relationship between the social and ecological processes on a parcel of land. The need for such systems thinking is implicit in the catchment and river management component of the CAPS (South Africa DBE 2011). The teaching of a case study of a catchment management system (which is the management system that governs a water catchment basin) has never been included in any previous curriculum. Water management has devel-oped on a widening scale into the 21st century in South Afri-ca, but there was little comprehensive data on catchment management systems until 2017. It was only in July 2017 that a draft catchment management strategy was published. Hence it is not surprising that no curriculum case studies ex-ist since there was no data to base them on (Meissner et al. 2017). An internet search in June 2020 uncovered no trace of any catchment management strategy for the more densely populated and, arguably, more significant eastern catch-ments of the country.
- Full Text:
- Date Issued: 2021
Sustainable Human Resource Practices for Organizational Competitiveness Post the Covid-19 Pandemic
- Asoba, Samson Nambei, Patricia, Nteboheng Mefi
- Authors: Asoba, Samson Nambei , Patricia, Nteboheng Mefi
- Date: 2021
- Subjects: Personel Management Covid-19 (Disease) Article
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/8118 , vital:61396 , xlink:href="https://www.abacademies.org/articles/Sustainable-human-resource-practices-for-organizational-competitiveness-post-the-covid-19-1528-2686-27-2-480.pdf"
- Description: The study was formulated to tap into the future of HRM given the disruptions arising from the Covid-119 pandemic as well as the progression of the global technological environment to the fourth industrial revolution. The aim of the study was to: the Covid-19 induced HRM practices underpinning future organizational competitiveness. A literature review strategy was adopted to achieve the study objective. The study established seven emerging themes to inform HRM practices for the competitiveness of organizations in future following the Covid-19 disturbances. These themes are: primacy of HRM, increased cyber influences, digitalization, remote HRM, human-machine interface skills, human-organisation strategic links as well as human-technology interface competencies. Based on the study findings, the study recommended HRM departments to move to HR 4.0 through the adoption of industry 4.0 technologies, increased automation, and digitalization as well as strengthen virtualization systems.
- Full Text:
- Date Issued: 2021
- Authors: Asoba, Samson Nambei , Patricia, Nteboheng Mefi
- Date: 2021
- Subjects: Personel Management Covid-19 (Disease) Article
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/8118 , vital:61396 , xlink:href="https://www.abacademies.org/articles/Sustainable-human-resource-practices-for-organizational-competitiveness-post-the-covid-19-1528-2686-27-2-480.pdf"
- Description: The study was formulated to tap into the future of HRM given the disruptions arising from the Covid-119 pandemic as well as the progression of the global technological environment to the fourth industrial revolution. The aim of the study was to: the Covid-19 induced HRM practices underpinning future organizational competitiveness. A literature review strategy was adopted to achieve the study objective. The study established seven emerging themes to inform HRM practices for the competitiveness of organizations in future following the Covid-19 disturbances. These themes are: primacy of HRM, increased cyber influences, digitalization, remote HRM, human-machine interface skills, human-organisation strategic links as well as human-technology interface competencies. Based on the study findings, the study recommended HRM departments to move to HR 4.0 through the adoption of industry 4.0 technologies, increased automation, and digitalization as well as strengthen virtualization systems.
- Full Text:
- Date Issued: 2021
Synthesis and emerging frontiers in social-ecological systems research methods
- Schluter, Maja, Biggs, Reinette, Clements, Hayley, de Vos, Alta, Maciejewski, Kristine, Preiser, Rika
- Authors: Schluter, Maja , Biggs, Reinette , Clements, Hayley , de Vos, Alta , Maciejewski, Kristine , Preiser, Rika
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/433887 , vital:73007 , ISBN 9781000401516 , https://library.oapen.org/handle/20.500.12657/49560
- Description: Social-ecological systems (SES) research is a rapidly emerging new research domain within the broader emerging area of sustainability science. It is largely a problem-driven and action-oriented field, motivated by the immense sustainability and equity-related challenges facing society (see Chapter 1). Social-ecological systems research is based on an understanding that SES are complex adaptive systems (CAS), where social and ecological dynamics are deeply intertwined, and give rise to features and problems that cannot be understood or addressed by studying these dimensions in isolation (see Chapter 2). The field draws on and combines methods from both natural and social sciences, and combines quantitative and qualitative approaches. As such, SES research is characterised by epistemological and methodological pluralism, which is challenging for those entering the field and has complex implications for the research process, methods and ethical considerations to be taken into account in SES research (see Chapter 3). This book aims to clarify and synthesise this plurality by providing an introduction to SES research (Part 1), and the diversity of methods currently used in the field (Part 2). The aim of this final chapter (Part 3) is to provide a synthesis of the current landscape of SES methods, critically reflect on the methods with respect to their ability to address systemic features of SES and discuss some of the most common methodological challenges associated with the complex adaptive and intertwined nature of SES. Based on this synthesis, we identify methodological gaps and discuss novel methods and method combinations that may help to address these gaps and move the field forward.
- Full Text:
- Date Issued: 2021
- Authors: Schluter, Maja , Biggs, Reinette , Clements, Hayley , de Vos, Alta , Maciejewski, Kristine , Preiser, Rika
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/433887 , vital:73007 , ISBN 9781000401516 , https://library.oapen.org/handle/20.500.12657/49560
- Description: Social-ecological systems (SES) research is a rapidly emerging new research domain within the broader emerging area of sustainability science. It is largely a problem-driven and action-oriented field, motivated by the immense sustainability and equity-related challenges facing society (see Chapter 1). Social-ecological systems research is based on an understanding that SES are complex adaptive systems (CAS), where social and ecological dynamics are deeply intertwined, and give rise to features and problems that cannot be understood or addressed by studying these dimensions in isolation (see Chapter 2). The field draws on and combines methods from both natural and social sciences, and combines quantitative and qualitative approaches. As such, SES research is characterised by epistemological and methodological pluralism, which is challenging for those entering the field and has complex implications for the research process, methods and ethical considerations to be taken into account in SES research (see Chapter 3). This book aims to clarify and synthesise this plurality by providing an introduction to SES research (Part 1), and the diversity of methods currently used in the field (Part 2). The aim of this final chapter (Part 3) is to provide a synthesis of the current landscape of SES methods, critically reflect on the methods with respect to their ability to address systemic features of SES and discuss some of the most common methodological challenges associated with the complex adaptive and intertwined nature of SES. Based on this synthesis, we identify methodological gaps and discuss novel methods and method combinations that may help to address these gaps and move the field forward.
- Full Text:
- Date Issued: 2021
Synthesis and trypanocidal activity of substituted 2, 4-diarylquinoline derivatives
- Oluwafemi, Kola A, Phunguphungu, Siyolise, Gqunu, Sinalo, Isaacs, Michelle, Hoppe, Heinrich C, Klein, Rosalyn, Kaye, Perry T
- Authors: Oluwafemi, Kola A , Phunguphungu, Siyolise , Gqunu, Sinalo , Isaacs, Michelle , Hoppe, Heinrich C , Klein, Rosalyn , Kaye, Perry T
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/477683 , vital:78111 , xlink:href="https://doi.org/10.24820/ark.5550190.p011.499"
- Description: A small library of nine, novel 2, 4-diarylquinoline derivatives has been prepared in high yield via convenient one-or two-step routes from a series of substituted 2-aminobenzophenones. None of the products exhibited toxicity at 20 μM against human cervix adenocarcinoma (HeLa) cells, while many of them exhibited encouraging trypanocidal activity against T. brucei brucei (a parasite responsible for African cattle trypanosomiasis)-some with IC50 values in the range 2.8–6.2 μM.
- Full Text:
- Date Issued: 2021
- Authors: Oluwafemi, Kola A , Phunguphungu, Siyolise , Gqunu, Sinalo , Isaacs, Michelle , Hoppe, Heinrich C , Klein, Rosalyn , Kaye, Perry T
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/477683 , vital:78111 , xlink:href="https://doi.org/10.24820/ark.5550190.p011.499"
- Description: A small library of nine, novel 2, 4-diarylquinoline derivatives has been prepared in high yield via convenient one-or two-step routes from a series of substituted 2-aminobenzophenones. None of the products exhibited toxicity at 20 μM against human cervix adenocarcinoma (HeLa) cells, while many of them exhibited encouraging trypanocidal activity against T. brucei brucei (a parasite responsible for African cattle trypanosomiasis)-some with IC50 values in the range 2.8–6.2 μM.
- Full Text:
- Date Issued: 2021