Occurrence of Indo-Pacific bottlenose dolphins (Tursiops aduncus) off the Wild Coast of South Africa using photographic identification:
- Caputo, Michelle, Bouveroux, Thibaut, Froneman, P William, Shaanika, Titus, Plön, Stephanie
- Authors: Caputo, Michelle , Bouveroux, Thibaut , Froneman, P William , Shaanika, Titus , Plön, Stephanie
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/160367 , vital:40439 , https://0-doi.org.wam.seals.ac.za/10.1111/mms.12740
- Description: The present study represents the first reported boat‐based photographic identification study of Indo‐Pacific bottlenose dolphins (Tursiops aduncus) off the Wild Coast of southeast South Africa. This area is known for the annual sardine run, which attracts apex predators to the region during the austral winter. Dedicated photo‐identification surveys were conducted along this coast at three different study sites in February, June, and November of each year from 2014 to 2016.
- Full Text:
- Date Issued: 2020
- Authors: Caputo, Michelle , Bouveroux, Thibaut , Froneman, P William , Shaanika, Titus , Plön, Stephanie
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/160367 , vital:40439 , https://0-doi.org.wam.seals.ac.za/10.1111/mms.12740
- Description: The present study represents the first reported boat‐based photographic identification study of Indo‐Pacific bottlenose dolphins (Tursiops aduncus) off the Wild Coast of southeast South Africa. This area is known for the annual sardine run, which attracts apex predators to the region during the austral winter. Dedicated photo‐identification surveys were conducted along this coast at three different study sites in February, June, and November of each year from 2014 to 2016.
- Full Text:
- Date Issued: 2020
PKS 2250−351: A Giant Radio Galaxy in Abell 3936
- Seymour, N, Huynh, M, Shabala, S S, Rogers, J, Davies, L J M, Turner, R J, O'Brien, A, Ishwara-Chandra, C H, Thorne, J E, Galvin, T J, Jarrett, T, Anderbach, H, Anderson, A, Bunton, J, Chow, K, Collier, J D, Driver, S, Filipovic, M D, Gurkan, G, Hopkins, A M, Kapinska, A D, Leahy, D A, Marvil, J, Manojlovic, P, Norris, R P, Phillips, C, Robotham, A, Rudnick, L, Singh, V, White, S V
- Authors: Seymour, N , Huynh, M , Shabala, S S , Rogers, J , Davies, L J M , Turner, R J , O'Brien, A , Ishwara-Chandra, C H , Thorne, J E , Galvin, T J , Jarrett, T , Anderbach, H , Anderson, A , Bunton, J , Chow, K , Collier, J D , Driver, S , Filipovic, M D , Gurkan, G , Hopkins, A M , Kapinska, A D , Leahy, D A , Marvil, J , Manojlovic, P , Norris, R P , Phillips, C , Robotham, A , Rudnick, L , Singh, V , White, S V
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/150320 , vital:38967 , https://doi.org/10.1017/pasa.2019.49
- Description: We present a detailed analysis of the radio galaxy PKS , a giant of 1.2 Mpc projected size, its host galaxy, and its environment. We use radio data from the Murchison Widefield Array, the upgraded Giant Metre-wavelength Radio Telescope, the Australian Square Kilometre Array Pathfinder, and the Australia Telescope Compact Array to model the jet power and age. Optical and IR data come from the Galaxy And Mass Assembly (GAMA) survey and provide information on the host galaxy and environment.
- Full Text:
- Date Issued: 2020
- Authors: Seymour, N , Huynh, M , Shabala, S S , Rogers, J , Davies, L J M , Turner, R J , O'Brien, A , Ishwara-Chandra, C H , Thorne, J E , Galvin, T J , Jarrett, T , Anderbach, H , Anderson, A , Bunton, J , Chow, K , Collier, J D , Driver, S , Filipovic, M D , Gurkan, G , Hopkins, A M , Kapinska, A D , Leahy, D A , Marvil, J , Manojlovic, P , Norris, R P , Phillips, C , Robotham, A , Rudnick, L , Singh, V , White, S V
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/150320 , vital:38967 , https://doi.org/10.1017/pasa.2019.49
- Description: We present a detailed analysis of the radio galaxy PKS , a giant of 1.2 Mpc projected size, its host galaxy, and its environment. We use radio data from the Murchison Widefield Array, the upgraded Giant Metre-wavelength Radio Telescope, the Australian Square Kilometre Array Pathfinder, and the Australia Telescope Compact Array to model the jet power and age. Optical and IR data come from the Galaxy And Mass Assembly (GAMA) survey and provide information on the host galaxy and environment.
- Full Text:
- Date Issued: 2020
Repurposing a polymer precursor: Synthesis and in vitro medicinal potential of ferrocenyl 1, 3-benzoxazine derivatives
- Mbaba, Mziyanda, Dingle, Laura M K, Cash, Devon, de la Mare, Jo-Anne, Laming, Dustin, Taylor, Dale, Hoppe, Heinrich C, Edkins, Adrienne L, Khanye, Setshaba D
- Authors: Mbaba, Mziyanda , Dingle, Laura M K , Cash, Devon , de la Mare, Jo-Anne , Laming, Dustin , Taylor, Dale , Hoppe, Heinrich C , Edkins, Adrienne L , Khanye, Setshaba D
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/165395 , vital:41240 , https://doi.org/10.1016/j.ejmech.2019.111924
- Description: Cancer and malaria remain relevant pathologies in modern medicinal chemistry endeavours. This is compounded by the threat of development of resistance to existing clinical drugs in use as first-line option for treatment of these diseases. To counter this threat, strategies such as drug repurposing and hybridization are constantly adapted in contemporary drug discovery for the expansion of the drug arsenal and generation of novel chemotypes with potential to avert or delay resistance. In the present study, a polymer precursor scaffold, 1,3-benzoxazine, has been repurposed by incorporation of an organometallic ferrocene unit to produce a novel class of compounds showing in vitro biological activity against breast cancer, malaria and trypanosomiasis.
- Full Text:
- Date Issued: 2020
- Authors: Mbaba, Mziyanda , Dingle, Laura M K , Cash, Devon , de la Mare, Jo-Anne , Laming, Dustin , Taylor, Dale , Hoppe, Heinrich C , Edkins, Adrienne L , Khanye, Setshaba D
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/165395 , vital:41240 , https://doi.org/10.1016/j.ejmech.2019.111924
- Description: Cancer and malaria remain relevant pathologies in modern medicinal chemistry endeavours. This is compounded by the threat of development of resistance to existing clinical drugs in use as first-line option for treatment of these diseases. To counter this threat, strategies such as drug repurposing and hybridization are constantly adapted in contemporary drug discovery for the expansion of the drug arsenal and generation of novel chemotypes with potential to avert or delay resistance. In the present study, a polymer precursor scaffold, 1,3-benzoxazine, has been repurposed by incorporation of an organometallic ferrocene unit to produce a novel class of compounds showing in vitro biological activity against breast cancer, malaria and trypanosomiasis.
- Full Text:
- Date Issued: 2020
Sistering and sexual socialisation: a discursive study of Xhosa women’s sisterly interactions concerning sex and reproduction
- Ndabula, Yanela, Macleod, Catriona I, Young, Lisa S
- Authors: Ndabula, Yanela , Macleod, Catriona I , Young, Lisa S
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/160301 , vital:40432 , DOI: 10.1080/13691058.2020.1785551
- Description: Considerable research has been devoted to understanding and promoting parent-child sexual socialisation. Less attention has been paid to experiences of sibling interactions concerning sex. Drawing on discursive psychology, this study explores how women report interacting about sex and reproduction in their sisterly relationships. Ten in-depth interviews were conducted, using Free Association Narrative Interview technique, with five Black isiXhosa-speaking, middle-aged and working class women in South Africa.
- Full Text:
- Date Issued: 2020
- Authors: Ndabula, Yanela , Macleod, Catriona I , Young, Lisa S
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/160301 , vital:40432 , DOI: 10.1080/13691058.2020.1785551
- Description: Considerable research has been devoted to understanding and promoting parent-child sexual socialisation. Less attention has been paid to experiences of sibling interactions concerning sex. Drawing on discursive psychology, this study explores how women report interacting about sex and reproduction in their sisterly relationships. Ten in-depth interviews were conducted, using Free Association Narrative Interview technique, with five Black isiXhosa-speaking, middle-aged and working class women in South Africa.
- Full Text:
- Date Issued: 2020
Synthesis, structure and in vitro anti-trypanosomal activity of non-toxic Arylpyrrole-Based Chalcone derivatives:
- Zulu, Ayanda I, Oderinlo, Ogunyemi O, Kruger, Cuan, Isaacs, Michelle, Hoppe, Heinrich C, Smith, Vincent J, Veale, Clinton G L, Khanye, Setshaba D
- Authors: Zulu, Ayanda I , Oderinlo, Ogunyemi O , Kruger, Cuan , Isaacs, Michelle , Hoppe, Heinrich C , Smith, Vincent J , Veale, Clinton G L , Khanye, Setshaba D
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/179017 , vital:40096 , https://doi.org/10.3390/molecules25071668
- Description: With an intention of identifying chalcone derivatives exhibiting anti-protozoal activity, a cohort of relatively unexplored arylpyrrole-based chalcone derivatives were synthesized in moderate to good yields. The resultant compounds were evaluated in vitro for their potential activity against a cultured Trypanosoma brucei brucei 427 strain. Several compounds displayed mostly modest in vitro anti-trypanosomal activity with compounds 10e and 10h emerging as active candidates with IC50 values of 4.09 and 5.11 µM, respectively. More importantly, a concomitant assessment of their activity against a human cervix adenocarcinoma (HeLa) cell line revealed that these compounds are non-toxic.
- Full Text:
- Date Issued: 2020
- Authors: Zulu, Ayanda I , Oderinlo, Ogunyemi O , Kruger, Cuan , Isaacs, Michelle , Hoppe, Heinrich C , Smith, Vincent J , Veale, Clinton G L , Khanye, Setshaba D
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/179017 , vital:40096 , https://doi.org/10.3390/molecules25071668
- Description: With an intention of identifying chalcone derivatives exhibiting anti-protozoal activity, a cohort of relatively unexplored arylpyrrole-based chalcone derivatives were synthesized in moderate to good yields. The resultant compounds were evaluated in vitro for their potential activity against a cultured Trypanosoma brucei brucei 427 strain. Several compounds displayed mostly modest in vitro anti-trypanosomal activity with compounds 10e and 10h emerging as active candidates with IC50 values of 4.09 and 5.11 µM, respectively. More importantly, a concomitant assessment of their activity against a human cervix adenocarcinoma (HeLa) cell line revealed that these compounds are non-toxic.
- Full Text:
- Date Issued: 2020
Transnational Crime in Deon Meyer’s Devil’s Peak and Santiago Gamboa’s Night Prayers:
- Authors: Naidu, Samantha
- Date: 2020
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/163881 , vital:41077 , ISBN 9783030534134 , https://0-doi.org.wam.seals.ac.za/10.1007/978-3-030-53413-4_2
- Description: Naidu argues that transnational crime wreaks havoc on global, national and personal levels in the postcolonial crime novels Devil’s Peak (2007) by South African author Deon Meyer and Night Prayers (2016) by Colombian author Santiago Gamboa. As postcolonial crime novels, they critique sociopolitical instability and corruption harking back to colonial times. Using mobility studies, Naidu interrogates the novels’ rendering of complex relations between the local and the global, and the past and the present. Despite stylistic and generic differences, both novels engage with the pervasive, transnational nature of criminal syndicates and current crimes which are a result of turbulent and unjust histories. Naidu examines the mobility of hapless victims, postcolonial anti-detectives and subversive heroines and comments on the ironic hope afforded by such figures.
- Full Text:
- Date Issued: 2020
- Authors: Naidu, Samantha
- Date: 2020
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/163881 , vital:41077 , ISBN 9783030534134 , https://0-doi.org.wam.seals.ac.za/10.1007/978-3-030-53413-4_2
- Description: Naidu argues that transnational crime wreaks havoc on global, national and personal levels in the postcolonial crime novels Devil’s Peak (2007) by South African author Deon Meyer and Night Prayers (2016) by Colombian author Santiago Gamboa. As postcolonial crime novels, they critique sociopolitical instability and corruption harking back to colonial times. Using mobility studies, Naidu interrogates the novels’ rendering of complex relations between the local and the global, and the past and the present. Despite stylistic and generic differences, both novels engage with the pervasive, transnational nature of criminal syndicates and current crimes which are a result of turbulent and unjust histories. Naidu examines the mobility of hapless victims, postcolonial anti-detectives and subversive heroines and comments on the ironic hope afforded by such figures.
- Full Text:
- Date Issued: 2020
Two new Caenis Species (Insecta: Ephemeroptera: Caenidae) from the Kruger National Park, South Africa:
- Malzacher, P, Barber-James, Helen M
- Authors: Malzacher, P , Barber-James, Helen M
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/150256 , vital:38954 , https://0-doi.org.wam.seals.ac.za/10.4001/003.028.0062
- Description: The new mayfly species Caenis albicans sp. n. and Caenis letabanensis sp. n. (Ephemeroptera: Caenidae) from the Kruger National Park, South Africa, are described herein. The new species were collected in the area of the confluence of the Olifants and Letaba Rivers. They belong to the Caenis – TPA group, a group widely distributed in Africa, characterised inter alia by forceps apically having a tuft of long spines. The material examined also contained samples from the Crocodile and Sabie Rivers, with larvae and imagines of Caenis brevipes Kimmins, 1956. The previously unknown larva of this species is also described.
- Full Text:
- Date Issued: 2020
- Authors: Malzacher, P , Barber-James, Helen M
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/150256 , vital:38954 , https://0-doi.org.wam.seals.ac.za/10.4001/003.028.0062
- Description: The new mayfly species Caenis albicans sp. n. and Caenis letabanensis sp. n. (Ephemeroptera: Caenidae) from the Kruger National Park, South Africa, are described herein. The new species were collected in the area of the confluence of the Olifants and Letaba Rivers. They belong to the Caenis – TPA group, a group widely distributed in Africa, characterised inter alia by forceps apically having a tuft of long spines. The material examined also contained samples from the Crocodile and Sabie Rivers, with larvae and imagines of Caenis brevipes Kimmins, 1956. The previously unknown larva of this species is also described.
- Full Text:
- Date Issued: 2020
‘That ever-blurry line between us and the criminals’: African Noir and the Ambiguity of Justice in MŨkoma wa NgŨgĨ’s Black Star Nairobi and Leye Adenle’s When Trouble Sleeps
- Authors: Naidu, Samantha
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158069 , vital:40145 , https://0-doi.org.wam.seals.ac.za/10.1093/fmls/cqaa020
- Description: This article, which focuses on African noir as a variety of neo-noir literature, begins by outlining the intertextual and intercultural relationships between classic noir and African noir. Thereafter, the postcolonial, postmodernist and transnational elements of African noir are described utilizing Mũkoma wa Ngũgĩ’s novel Black Star Nairobi (2013) and Leye Adenle’s When Trouble Sleeps (2018) as exemplars. Arguing that African noir draws on various genres and discourses, the article demonstrates how issues of socio-political justice, ontological and existential dilemmas, aesthetic concerns and the epistemological quest are rendered as ambiguous and murky. Based on a close reading of Black Star Nairobi and When Trouble Sleeps, the article concludes that the predominant chiaroscuro effect of African noir is not so much a ‘dark’ sensibility as one of abstruseness and poignant Afro-pessimism.
- Full Text:
- Date Issued: 2020
- Authors: Naidu, Samantha
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158069 , vital:40145 , https://0-doi.org.wam.seals.ac.za/10.1093/fmls/cqaa020
- Description: This article, which focuses on African noir as a variety of neo-noir literature, begins by outlining the intertextual and intercultural relationships between classic noir and African noir. Thereafter, the postcolonial, postmodernist and transnational elements of African noir are described utilizing Mũkoma wa Ngũgĩ’s novel Black Star Nairobi (2013) and Leye Adenle’s When Trouble Sleeps (2018) as exemplars. Arguing that African noir draws on various genres and discourses, the article demonstrates how issues of socio-political justice, ontological and existential dilemmas, aesthetic concerns and the epistemological quest are rendered as ambiguous and murky. Based on a close reading of Black Star Nairobi and When Trouble Sleeps, the article concludes that the predominant chiaroscuro effect of African noir is not so much a ‘dark’ sensibility as one of abstruseness and poignant Afro-pessimism.
- Full Text:
- Date Issued: 2020
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