Methods for understanding social-ecological systems: a review of place-based studies
- de Vos, Alta, Biggs, Reinette, Preiser, Rika
- Authors: de Vos, Alta , Biggs, Reinette , Preiser, Rika
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/415909 , vital:71299 , xlink:href="https://doi.org/10.5751/ES-11236-240416"
- Description: In recent years, social-ecological systems (SES) have emerged as a prominent analytical framing with which to investigate pressing sustainability issues associated with the Anthropocene era. Despite the growth of SES research, the lack of a delineated set of methods commonly contributes to disorientation for those entering into a field where methodological pluralism is the norm. We conduct a review of SES research, focusing particularly on methods used in this field. Our results reflect the rapid growth in SES research relative to other publications in relevant subject areas, and suggest a maturation of the field. Whilst institutions investigating SES have been mostly based in the global north, focal SES has been more globally distributed, although key regions, especially island regions, remain poorly studied. Key problems addressed in the studies related to policy, trade, conservation, adaptation, land use change, water, forests, sustainability, urban problems, and governance and institutions. We identified 311 methods, which we grouped into 27 method categories that can serve as a guide to SES research methods for newcomers to the field. We also performed an exploratory assessment of the ability of these methods to account for key features of SES as complex adaptive systems. We found that methods do better at accounting for the relational and context-dependent nature of SES, and least well with complex causality. Our study highlights the plurality of methods used in SES research, and helps highlight key areas in need of further methodological development.
- Full Text:
- Authors: de Vos, Alta , Biggs, Reinette , Preiser, Rika
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/415909 , vital:71299 , xlink:href="https://doi.org/10.5751/ES-11236-240416"
- Description: In recent years, social-ecological systems (SES) have emerged as a prominent analytical framing with which to investigate pressing sustainability issues associated with the Anthropocene era. Despite the growth of SES research, the lack of a delineated set of methods commonly contributes to disorientation for those entering into a field where methodological pluralism is the norm. We conduct a review of SES research, focusing particularly on methods used in this field. Our results reflect the rapid growth in SES research relative to other publications in relevant subject areas, and suggest a maturation of the field. Whilst institutions investigating SES have been mostly based in the global north, focal SES has been more globally distributed, although key regions, especially island regions, remain poorly studied. Key problems addressed in the studies related to policy, trade, conservation, adaptation, land use change, water, forests, sustainability, urban problems, and governance and institutions. We identified 311 methods, which we grouped into 27 method categories that can serve as a guide to SES research methods for newcomers to the field. We also performed an exploratory assessment of the ability of these methods to account for key features of SES as complex adaptive systems. We found that methods do better at accounting for the relational and context-dependent nature of SES, and least well with complex causality. Our study highlights the plurality of methods used in SES research, and helps highlight key areas in need of further methodological development.
- Full Text:
Molecular Networking Reveals Two Distinct Chemotypes in Pyrroloiminoquinone-Producing Tsitsikamma favus Sponges
- Kalinski, Jarmo-Charles J, Waterworth, Samantha C, Noundou, Xavier S, Jiwaji, Meesbah, Parker-Nance, Shirley, Krause, Rui W M, McPhail, Kerry L, Dorrington, Rosemary A
- Authors: Kalinski, Jarmo-Charles J , Waterworth, Samantha C , Noundou, Xavier S , Jiwaji, Meesbah , Parker-Nance, Shirley , Krause, Rui W M , McPhail, Kerry L , Dorrington, Rosemary A
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/131618 , vital:36673 , https://doi.org/10.3390/md17010060
- Description: The temperate marine sponge, Tsitsikamma favus, produces pyrroloiminoquinone alkaloids with potential as anticancer drug leads. We profiled the secondary metabolite reservoir of T. favus sponges using HR-ESI-LC-MS/MS-based molecular networking analysis followed by preparative purification efforts to map the diversity of new and known pyrroloiminoquinones and related compounds in extracts of seven specimens. Molecular taxonomic identification confirmed all sponges as T. favus and five specimens (chemotype I) were found to produce mainly discorhabdins and tsitsikammamines. Remarkably, however, two specimens (chemotype II) exhibited distinct morphological and chemical characteristics: the absence of discorhabdins, only trace levels of tsitsikammamines and, instead, an abundance of unbranched and halogenated makaluvamines. Targeted chromatographic isolation provided the new makaluvamine Q, the known makaluvamines A and I, tsitsikammamine B, 14-bromo-7,8-dehydro-3-dihydro-discorhabdin C, and the related pyrrolo-ortho-quinones makaluvamine O and makaluvone. Purified compounds displayed different activity profiles in assays for topoisomerase I inhibition, DNA intercalation and antimetabolic activity against human cell lines. This is the first report of makaluvamines from a Tsitsikamma sponge species, and the first description of distinct chemotypes within a species of the Latrunculiidae family. This study sheds new light on the putative pyrroloiminoquinone biosynthetic pathway of latrunculid sponges
- Full Text:
- Authors: Kalinski, Jarmo-Charles J , Waterworth, Samantha C , Noundou, Xavier S , Jiwaji, Meesbah , Parker-Nance, Shirley , Krause, Rui W M , McPhail, Kerry L , Dorrington, Rosemary A
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/131618 , vital:36673 , https://doi.org/10.3390/md17010060
- Description: The temperate marine sponge, Tsitsikamma favus, produces pyrroloiminoquinone alkaloids with potential as anticancer drug leads. We profiled the secondary metabolite reservoir of T. favus sponges using HR-ESI-LC-MS/MS-based molecular networking analysis followed by preparative purification efforts to map the diversity of new and known pyrroloiminoquinones and related compounds in extracts of seven specimens. Molecular taxonomic identification confirmed all sponges as T. favus and five specimens (chemotype I) were found to produce mainly discorhabdins and tsitsikammamines. Remarkably, however, two specimens (chemotype II) exhibited distinct morphological and chemical characteristics: the absence of discorhabdins, only trace levels of tsitsikammamines and, instead, an abundance of unbranched and halogenated makaluvamines. Targeted chromatographic isolation provided the new makaluvamine Q, the known makaluvamines A and I, tsitsikammamine B, 14-bromo-7,8-dehydro-3-dihydro-discorhabdin C, and the related pyrrolo-ortho-quinones makaluvamine O and makaluvone. Purified compounds displayed different activity profiles in assays for topoisomerase I inhibition, DNA intercalation and antimetabolic activity against human cell lines. This is the first report of makaluvamines from a Tsitsikamma sponge species, and the first description of distinct chemotypes within a species of the Latrunculiidae family. This study sheds new light on the putative pyrroloiminoquinone biosynthetic pathway of latrunculid sponges
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Molecular phylogeny of Chondrocyclus (Gastropoda: Cyclophoridae), a widespread genus of sedentary, restricted-range snails:
- Cole, Mary L, Raheem, Dinarzarde C, Villet, Martin H
- Authors: Cole, Mary L , Raheem, Dinarzarde C , Villet, Martin H
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140761 , vital:37916 , DOI: 10.1016/j.ympev.2018.09.018
- Description: The genus Chondrocyclus Ancey, 1898 contains the majority of southern African members of the Cyclophoridae, a large family of operculate land snails. We present the first molecular phylogeny of the genus based on two mitochondrial genes (16S and CO1) and complement this with an appraisal of morphological characters relating to the shell and soft parts. Worn shells on which some descriptions and records of different species were based appear to be indistinguishable morphologically, creating taxonomic confusion. We show that Chondrocyclus s.l. underwent two major radiations, one Afromontane and the other largely coastal.
- Full Text:
- Authors: Cole, Mary L , Raheem, Dinarzarde C , Villet, Martin H
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140761 , vital:37916 , DOI: 10.1016/j.ympev.2018.09.018
- Description: The genus Chondrocyclus Ancey, 1898 contains the majority of southern African members of the Cyclophoridae, a large family of operculate land snails. We present the first molecular phylogeny of the genus based on two mitochondrial genes (16S and CO1) and complement this with an appraisal of morphological characters relating to the shell and soft parts. Worn shells on which some descriptions and records of different species were based appear to be indistinguishable morphologically, creating taxonomic confusion. We show that Chondrocyclus s.l. underwent two major radiations, one Afromontane and the other largely coastal.
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Morphological identification of fungi associated with Eichhornia crassipes (Mart.-Solms) Laubach in the Wouri River Basin, Douala, Cameroon
- Voukeng, Kenfack S N, Coombes, Candice A, Weyl, Philip S, Djeugoue, F, Hill, Martin P
- Authors: Voukeng, Kenfack S N , Coombes, Candice A , Weyl, Philip S , Djeugoue, F , Hill, Martin P
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/423785 , vital:72093 , xlink:href="https://doi.org/10.2989/16085914.2019.1636760"
- Description: In many parts of the world, excess growth of Eichhornia crassipes (Pontederiaceae) poses a serious threat to aquatic environments. In Cameroon, where manual clearing is still undertaken, little is known about fungal diversity associated with the plant, or its potential for biological control. Surveys of the Wouri River Basin in the Littoral Region of Cameroon were conducted during a rainy season (May–October 2014) and a dry season (November 2015–April 2016) at various sites, to identify fungi associated with water hyacinth. Fungi were isolated and identified from symptomatic plant parts collected. In the rainy season, 130 fungal isolates belonging to 12 genera were identified morphologically, whereas 299 isolates belonging to 23 genera were identified during the dry season. With the exception of Fusarium oxysporum and Phytophthora sp., the genera represented new records for Cameroon, and Chaetomium strumarium, Colletotrichum gloesporioides, C. acutatum, C. dematium, Curvularia pallescens and Pytomyces chartarum were considered new host records for E. crassipes in Africa. Isolates of Acremonium zonatum, Chaetomium strumarium, Alternaria eichhorniae, Phytophthora sp. and Rhizoctonia sp. showed the highest frequency of occurrence on E. crassipes in the Wouri River Basin and, given their record as plant pathogens, could be potentially useful in the development of mycoherbicides for this weed in Cameroon.
- Full Text:
- Authors: Voukeng, Kenfack S N , Coombes, Candice A , Weyl, Philip S , Djeugoue, F , Hill, Martin P
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/423785 , vital:72093 , xlink:href="https://doi.org/10.2989/16085914.2019.1636760"
- Description: In many parts of the world, excess growth of Eichhornia crassipes (Pontederiaceae) poses a serious threat to aquatic environments. In Cameroon, where manual clearing is still undertaken, little is known about fungal diversity associated with the plant, or its potential for biological control. Surveys of the Wouri River Basin in the Littoral Region of Cameroon were conducted during a rainy season (May–October 2014) and a dry season (November 2015–April 2016) at various sites, to identify fungi associated with water hyacinth. Fungi were isolated and identified from symptomatic plant parts collected. In the rainy season, 130 fungal isolates belonging to 12 genera were identified morphologically, whereas 299 isolates belonging to 23 genera were identified during the dry season. With the exception of Fusarium oxysporum and Phytophthora sp., the genera represented new records for Cameroon, and Chaetomium strumarium, Colletotrichum gloesporioides, C. acutatum, C. dematium, Curvularia pallescens and Pytomyces chartarum were considered new host records for E. crassipes in Africa. Isolates of Acremonium zonatum, Chaetomium strumarium, Alternaria eichhorniae, Phytophthora sp. and Rhizoctonia sp. showed the highest frequency of occurrence on E. crassipes in the Wouri River Basin and, given their record as plant pathogens, could be potentially useful in the development of mycoherbicides for this weed in Cameroon.
- Full Text:
Morphological influence of deposition routes on lead sulfide thin films
- Mlowe, Sixberth, Shombe, Ginena B, Akerman, Matthew P, Mubofu, Egid B, O'Brien, Paul, Mashazi, Philani N, Nyokong, Tebello, Revaprasadu, Neerish
- Authors: Mlowe, Sixberth , Shombe, Ginena B , Akerman, Matthew P , Mubofu, Egid B , O'Brien, Paul , Mashazi, Philani N , Nyokong, Tebello , Revaprasadu, Neerish
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/186780 , vital:44533 , xlink:href="https://doi.org/10.1016/j.ica.2019.119116"
- Description: A distorted single crystal structure of bis(piperidinedithiocarbamato)lead(II) complex and its subsequent use to deposit thin films is reported. Two deposition routes namely, aerosol-assisted chemical vapour deposition (AACVD) and spin coating deposition have been employed to obtain anisotropic lead sulfide (PbS) nanostructures. The thin films displayed rod to cubic shaped crystals for AACVD, and a range of cubes, star and dendritic morphologies with variation of temperatures were displayed for spin coated films. Optical band gaps between 1.32 and 1.55 eV as controlled by the change in temperature were observed for thin films deposited by AACVD. Powder X-ray diffraction (P-XRD) studies show that the films formed are composed of cubic crystalline PbS. The X-ray photoelectron spectroscopy (XPS) was used to investigate the effect of activation temperatures (350, 400 and 450 °C) on the chemical composition and oxidation states of PbS samples.
- Full Text:
- Authors: Mlowe, Sixberth , Shombe, Ginena B , Akerman, Matthew P , Mubofu, Egid B , O'Brien, Paul , Mashazi, Philani N , Nyokong, Tebello , Revaprasadu, Neerish
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/186780 , vital:44533 , xlink:href="https://doi.org/10.1016/j.ica.2019.119116"
- Description: A distorted single crystal structure of bis(piperidinedithiocarbamato)lead(II) complex and its subsequent use to deposit thin films is reported. Two deposition routes namely, aerosol-assisted chemical vapour deposition (AACVD) and spin coating deposition have been employed to obtain anisotropic lead sulfide (PbS) nanostructures. The thin films displayed rod to cubic shaped crystals for AACVD, and a range of cubes, star and dendritic morphologies with variation of temperatures were displayed for spin coated films. Optical band gaps between 1.32 and 1.55 eV as controlled by the change in temperature were observed for thin films deposited by AACVD. Powder X-ray diffraction (P-XRD) studies show that the films formed are composed of cubic crystalline PbS. The X-ray photoelectron spectroscopy (XPS) was used to investigate the effect of activation temperatures (350, 400 and 450 °C) on the chemical composition and oxidation states of PbS samples.
- Full Text:
Movement and predation: a catch-and-release study on the acoustic tracking of bonefish in the Indian Ocean
- Moxham, Emily Jeanne, Cowley, Paul D, Bennett, Rhett H, von Brandis, Rainer G
- Authors: Moxham, Emily Jeanne , Cowley, Paul D , Bennett, Rhett H , von Brandis, Rainer G
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/103946 , vital:32325 , https://doi.org/10.1007/s10641-019-00850-1
- Description: Tourism generated through bonefish (Albula spp.) fishing contributes to the economies of many isolated tropical islands and atolls. However, little research has been conducted on bonefish in the Indian Ocean. This study aimed to contribute to the understanding of bonefish ecology in the Indian Ocean by quantifying the spatial and temporal movements of Albula glossodonta at a near-pristine and predator-rich atoll in the Seychelles; however, to achieve this, an analysis to identify the occurrence of possible post-release predation bias was first necessary. An acoustic telemetry study was initiated at the remote St. Joseph Atoll, within an array of 88 automated data-logging acoustic receivers. Thirty bonefish were surgically implanted with Vemco V13 acoustic transmitters and tracked for one year. Only 10% of the tagged bonefish were detected for longer than two weeks. A comparison of the final 100 h of movement data from fish detected for less than two weeks to the movement data of the fish detected for longer periods revealed distinct differences in area use and significant differences in the average daily distance moved, speed of movement and frequency of detections. This suggested that mortality in the form of post-release predation was at least 43% of tagged fish. The three surviving bonefish were tracked for 210 to 367 days. These individuals remained in the atoll and showed high use of the marginal habitats between the shallow sand flats and the lagoon. A generalised linear mixed model identified that water temperature, diel cycle and tide were significant predictors of bonefish presence in the lagoon. The high post-release mortality highlights that catch-and-release is likely not as benign as previously believed and management and policy should be adjusted accordingly.
- Full Text:
- Authors: Moxham, Emily Jeanne , Cowley, Paul D , Bennett, Rhett H , von Brandis, Rainer G
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/103946 , vital:32325 , https://doi.org/10.1007/s10641-019-00850-1
- Description: Tourism generated through bonefish (Albula spp.) fishing contributes to the economies of many isolated tropical islands and atolls. However, little research has been conducted on bonefish in the Indian Ocean. This study aimed to contribute to the understanding of bonefish ecology in the Indian Ocean by quantifying the spatial and temporal movements of Albula glossodonta at a near-pristine and predator-rich atoll in the Seychelles; however, to achieve this, an analysis to identify the occurrence of possible post-release predation bias was first necessary. An acoustic telemetry study was initiated at the remote St. Joseph Atoll, within an array of 88 automated data-logging acoustic receivers. Thirty bonefish were surgically implanted with Vemco V13 acoustic transmitters and tracked for one year. Only 10% of the tagged bonefish were detected for longer than two weeks. A comparison of the final 100 h of movement data from fish detected for less than two weeks to the movement data of the fish detected for longer periods revealed distinct differences in area use and significant differences in the average daily distance moved, speed of movement and frequency of detections. This suggested that mortality in the form of post-release predation was at least 43% of tagged fish. The three surviving bonefish were tracked for 210 to 367 days. These individuals remained in the atoll and showed high use of the marginal habitats between the shallow sand flats and the lagoon. A generalised linear mixed model identified that water temperature, diel cycle and tide were significant predictors of bonefish presence in the lagoon. The high post-release mortality highlights that catch-and-release is likely not as benign as previously believed and management and policy should be adjusted accordingly.
- Full Text:
Mulling over Art with Andrew Mulenga:
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146815 , vital:38560 , https://www.themastonline.com/2019/06/18/mulling-over-art/
- Description: Life, which is the loosest translation of the Nyanja word “Umoyo”, an apt title for the ongoing exhibition that opened at the Henry Tayali Gallery last Friday has several visual morsels that are delightful to look at. The two-man show by schoolteachers based in the Eastern Province who are trying to break the mold from just being educators of art in their respective schools to wet their beaks in the contemporary art scene has several visual morsels that are delightful to look at.
- Full Text:
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146815 , vital:38560 , https://www.themastonline.com/2019/06/18/mulling-over-art/
- Description: Life, which is the loosest translation of the Nyanja word “Umoyo”, an apt title for the ongoing exhibition that opened at the Henry Tayali Gallery last Friday has several visual morsels that are delightful to look at. The two-man show by schoolteachers based in the Eastern Province who are trying to break the mold from just being educators of art in their respective schools to wet their beaks in the contemporary art scene has several visual morsels that are delightful to look at.
- Full Text:
Mulling over Art with Andrew Mulenga: Artnet “Intelligence Report” magnifies African Art Market
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146826 , vital:38561 , https://www.themastonline.com/2019/09/24/mulling-over-art-artnet-intelligence-report-magnifies-african-art-market/
- Description: In its latest “Intelligence Report” released on 10th September titled Welcome to the Age of the Art Industry (The Art World Is Over) which coincides with its 30th anniversary, artnet News advances a thesis: that over the past 30 years, the art world has evolved into an art industry.
- Full Text:
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146826 , vital:38561 , https://www.themastonline.com/2019/09/24/mulling-over-art-artnet-intelligence-report-magnifies-african-art-market/
- Description: In its latest “Intelligence Report” released on 10th September titled Welcome to the Age of the Art Industry (The Art World Is Over) which coincides with its 30th anniversary, artnet News advances a thesis: that over the past 30 years, the art world has evolved into an art industry.
- Full Text:
Mulling over Art with Andrew Mulenga: Lechwe celebrates 2 Zambian art icons
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146868 , vital:38565 , https://www.themastonline.com/2019/10/29/mulling-over-art-lechwe-celebrates-2-zambian-art-icons/
- Description: LESS than a year after its official opening, the Lechwe Trust Art Gallery on Lagos Road in Lusaka is the venue for Art Lives On – ii, an exhibition of artworks by Lutanda S. Mwamba (1966-2014) and Flinto S. Chandia (1955-2017) which opens next week on Thursday 7th November and runs until the end of February.
- Full Text:
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146868 , vital:38565 , https://www.themastonline.com/2019/10/29/mulling-over-art-lechwe-celebrates-2-zambian-art-icons/
- Description: LESS than a year after its official opening, the Lechwe Trust Art Gallery on Lagos Road in Lusaka is the venue for Art Lives On – ii, an exhibition of artworks by Lutanda S. Mwamba (1966-2014) and Flinto S. Chandia (1955-2017) which opens next week on Thursday 7th November and runs until the end of February.
- Full Text:
Mulling over Art with Andrew Mulenga: Lechwe celebrates women
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146849 , vital:38563 , https://www.themastonline.com/2019/10/15/mulling-over-art-lechwe-celebrates-women/
- Description: The Lechwe Trust Art Gallery in Lusaka is currently showing an exhibition titled “Women artists from the lechwe collection exhibition 2019” in which it showcases 41 artworks by over 30 women dating from 1970 to 2019.
- Full Text:
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146849 , vital:38563 , https://www.themastonline.com/2019/10/15/mulling-over-art-lechwe-celebrates-women/
- Description: The Lechwe Trust Art Gallery in Lusaka is currently showing an exhibition titled “Women artists from the lechwe collection exhibition 2019” in which it showcases 41 artworks by over 30 women dating from 1970 to 2019.
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Mulling over Art with Andrew Mulenga: Ni Mzilo – it is taboo
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146793 , vital:38558 , https://www.themastonline.com/2019/05/14/ni-mzilo-it-is-taboo/
- Description: “Ni Mzilo — It is taboo”, the ongoing solo exhibition by Agness Buya Yombwe at the Livingstone National Art Gallery that investigates the subject of Taboos and superstitions, but really anything from environmental concerns to prostate cancer is no secret by now, having been opened alongside the launch of a book also authored by the artist.
- Full Text:
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146793 , vital:38558 , https://www.themastonline.com/2019/05/14/ni-mzilo-it-is-taboo/
- Description: “Ni Mzilo — It is taboo”, the ongoing solo exhibition by Agness Buya Yombwe at the Livingstone National Art Gallery that investigates the subject of Taboos and superstitions, but really anything from environmental concerns to prostate cancer is no secret by now, having been opened alongside the launch of a book also authored by the artist.
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Mulling over Art with Andrew Mulenga: Shapley inspirations
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146893 , vital:38567 , https://www.themastonline.com/2019/11/05/mulling-over-art-shapley-inspirations/
- Description: Sponsored by the Confucius Institute at the University of Zambia (UNZA), the guiding idea of the exhibition “2019 Confucius Institute Art Exhibition and Open Day” at the Lusaka National Museum was a simple one, to celebrate the friendship of Zambia and China.
- Full Text:
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146893 , vital:38567 , https://www.themastonline.com/2019/11/05/mulling-over-art-shapley-inspirations/
- Description: Sponsored by the Confucius Institute at the University of Zambia (UNZA), the guiding idea of the exhibition “2019 Confucius Institute Art Exhibition and Open Day” at the Lusaka National Museum was a simple one, to celebrate the friendship of Zambia and China.
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Mulling over Art with Andrew Mulenga: UNZA, Hone students mitigate Zambia-China relations
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146837 , vital:38562 , https://www.themastonline.com/2019/10/01/mulling-overt-art-unza-hone-students-mitigate-zambia-china-relations/
- Description: China’s presence in Africa has been a contentious issue coupled with speculation that the Asian economic powerhouse is taking over the continent through some kind of neo-colonialism instigated by what some are calling the “Chinese Debt Trap”.
- Full Text:
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146837 , vital:38562 , https://www.themastonline.com/2019/10/01/mulling-overt-art-unza-hone-students-mitigate-zambia-china-relations/
- Description: China’s presence in Africa has been a contentious issue coupled with speculation that the Asian economic powerhouse is taking over the continent through some kind of neo-colonialism instigated by what some are calling the “Chinese Debt Trap”.
- Full Text:
Mulling over Art with Andrew Mulenga: Vincentio solo yields mixed reviews from ZAOU students
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146804 , vital:38559 , https://www.themastonline.com/2019/05/28/mulling-over-art-vincentio-solo-yields-mixed-reviews-from-zaou-students/
- Description: Every semester, the Zambian Open University’s Bachelor of Arts in Fine Art residential programme and examination periods include several field trips that involve visits to museums, art galleries, private collections, public discussions as well as theatre and film production houses within Lusaka. Among the many tours this semester was a visit by a combined group of over thirty 2nd, 3rd and 4th year students from across the country to Zambian abstract maestro Vincentio Phiri’s solo exhibition entitled “Omission” that ran at the Zambia Ultra Gallery at Garden City Mall on Great East Road in Lusaka from 14th to 30th April.
- Full Text:
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146804 , vital:38559 , https://www.themastonline.com/2019/05/28/mulling-over-art-vincentio-solo-yields-mixed-reviews-from-zaou-students/
- Description: Every semester, the Zambian Open University’s Bachelor of Arts in Fine Art residential programme and examination periods include several field trips that involve visits to museums, art galleries, private collections, public discussions as well as theatre and film production houses within Lusaka. Among the many tours this semester was a visit by a combined group of over thirty 2nd, 3rd and 4th year students from across the country to Zambian abstract maestro Vincentio Phiri’s solo exhibition entitled “Omission” that ran at the Zambia Ultra Gallery at Garden City Mall on Great East Road in Lusaka from 14th to 30th April.
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Mulling over Art with Andrew Mulenga: Wadada’s paintings: vehicles for peace
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146854 , vital:38564 , https://www.themastonline.com/2019/10/23/mulling-over-art-2/
- Description: ART can be argued to possess a visual agency that gives it the ability to sway popular mindsets or aid peacebuilding and help mediate social healing. It can help bring together aggressively opposing political parties by encouraging nonviolent politicking. In short, art is a vehicle for peace.
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- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146854 , vital:38564 , https://www.themastonline.com/2019/10/23/mulling-over-art-2/
- Description: ART can be argued to possess a visual agency that gives it the ability to sway popular mindsets or aid peacebuilding and help mediate social healing. It can help bring together aggressively opposing political parties by encouraging nonviolent politicking. In short, art is a vehicle for peace.
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Mulling over Art with Andrew Mulenga: ZAOU releases 6th stream of Fine Art Students
- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146882 , vital:38566 , https://www.themastonline.com/2019/12/31/mulling-over-art-zaou-releases-6th-stream-of-fine-art-students/
- Description: Friday the 13th of December marked the last day of a four-year academic journey for 14 Bachelor of Fine Arts students at the Zambian Open University. Held at the Lusaka National Museum, it culminated in what is now called the Fourth Year Undergraduate Fine Arts Expo, an annual event.
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- Authors: Mulenga, Andrew
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146882 , vital:38566 , https://www.themastonline.com/2019/12/31/mulling-over-art-zaou-releases-6th-stream-of-fine-art-students/
- Description: Friday the 13th of December marked the last day of a four-year academic journey for 14 Bachelor of Fine Arts students at the Zambian Open University. Held at the Lusaka National Museum, it culminated in what is now called the Fourth Year Undergraduate Fine Arts Expo, an annual event.
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Nano-enabled liposomal mucoadhesive films for enhanced efavirenz buccal drug delivery
- Okafor, Nnamadi I, Ngoepe, Mpho, Siwe-Noundou, Xavier, Krause, Rui W M
- Authors: Okafor, Nnamadi I , Ngoepe, Mpho , Siwe-Noundou, Xavier , Krause, Rui W M
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/194032 , vital:45417 , xlink:href="https://doi.org/10.1016/j.jddst.2019.101312"
- Description: Buccal films (BFs) were prepared using a solvent casting method using the liposomal suspension as the dispersing medium. Optimization of some physical properties of the films containing different amounts of polymers was done using digital Vernier calliper and digital weighing balance. The physiochemical properties of the best optimized properties were characterized using Differential scanning calorimetry (DSC), X-ray diffraction (XRD), Fourier transfer infrared spectroscopy (FTIR), Transmission Electron Microscopy (TEM), Energy dispersive X-ray spectroscopy (EDS), and Scanning Electron Microscopy (SEM). Permeation study of the BFs composed of Carbopol (CP) alone and CP to Pluronic 127 (PF127) demonstrated better bio-adhesive properties than the films made of other polymers such as HPMC (hydroxyl propyl methyl cellulose) and HPMC-PF127. These CP based BFs (without and with PF127) exhibited good film thickness 0.88 ± 0.10 and 0.76 ± 0.14 mm, with weight uniformity 68.22 ± 1.04 and 86.28 ± 2.16 mg, satisfactory flexibility values 258 and 321, and slightly acidic pH 6.43 ± 0.76 and 6.32 ± 0.01. The swelling percentage was found to be 50% for CP and 78% for CP-PF127. The cumulative amount of drug that permeated through the buccal epithelium after 24 h was about 66% from CP and 75% from CP-PF127.
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- Authors: Okafor, Nnamadi I , Ngoepe, Mpho , Siwe-Noundou, Xavier , Krause, Rui W M
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/194032 , vital:45417 , xlink:href="https://doi.org/10.1016/j.jddst.2019.101312"
- Description: Buccal films (BFs) were prepared using a solvent casting method using the liposomal suspension as the dispersing medium. Optimization of some physical properties of the films containing different amounts of polymers was done using digital Vernier calliper and digital weighing balance. The physiochemical properties of the best optimized properties were characterized using Differential scanning calorimetry (DSC), X-ray diffraction (XRD), Fourier transfer infrared spectroscopy (FTIR), Transmission Electron Microscopy (TEM), Energy dispersive X-ray spectroscopy (EDS), and Scanning Electron Microscopy (SEM). Permeation study of the BFs composed of Carbopol (CP) alone and CP to Pluronic 127 (PF127) demonstrated better bio-adhesive properties than the films made of other polymers such as HPMC (hydroxyl propyl methyl cellulose) and HPMC-PF127. These CP based BFs (without and with PF127) exhibited good film thickness 0.88 ± 0.10 and 0.76 ± 0.14 mm, with weight uniformity 68.22 ± 1.04 and 86.28 ± 2.16 mg, satisfactory flexibility values 258 and 321, and slightly acidic pH 6.43 ± 0.76 and 6.32 ± 0.01. The swelling percentage was found to be 50% for CP and 78% for CP-PF127. The cumulative amount of drug that permeated through the buccal epithelium after 24 h was about 66% from CP and 75% from CP-PF127.
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Navigating non-sense by exemplifying situated life experience and intergenerational heritage knowledge in Education for Sustainable Development learning spaces
- O'Donoghue, Rob B, Kibuka-Sebitosi, Esther, Tshiningayamwe, Sirkka A N, Palmer, Carl
- Authors: O'Donoghue, Rob B , Kibuka-Sebitosi, Esther , Tshiningayamwe, Sirkka A N , Palmer, Carl
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/388122 , vital:68308 , xlink:href="https://www.ajol.info/index.php/sajee/article/view/186410"
- Description: This paper uses an activity system perspective to probe the related problems of knowledge abstraction and a lack of relevance as a modern legacy of colonial education practices in Africa. Its purpose is to contemplate Education for Sustainable Development (ESD) pedagogy to support learning that might be better situated in and resonate with local African contexts and the emerging sustainability concerns in everyday life. Colonial education trajectories and the recent inclusion of new environmental knowledge in African curriculum and civic learning contexts are examined. This points to how circulating environment and sustainability knowledge is being constituted in disciplinary fields as abstract concepts that are often difficult to relate to local sustainability concerns. Socio-cultural heritage and intergenerational meaning making are explored to uncover better situated ways of navigating much of the abstract ‘non-sense’ confronting African learners in many modern education contexts today. Illustrative examples of historical patterns of exclusion are scoped and two cases of pedagogical innovation are examined to contemplate how to navigate better situated and more relevant learning processes. Enacted in situated and co-engaged ways, ESD practices may enable the socio-cultural capital and environmental realities of local social-ecological contexts to articulate with better situated sustainability propositions for transitioning to more peaceful, just and sustainable futures.
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- Authors: O'Donoghue, Rob B , Kibuka-Sebitosi, Esther , Tshiningayamwe, Sirkka A N , Palmer, Carl
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/388122 , vital:68308 , xlink:href="https://www.ajol.info/index.php/sajee/article/view/186410"
- Description: This paper uses an activity system perspective to probe the related problems of knowledge abstraction and a lack of relevance as a modern legacy of colonial education practices in Africa. Its purpose is to contemplate Education for Sustainable Development (ESD) pedagogy to support learning that might be better situated in and resonate with local African contexts and the emerging sustainability concerns in everyday life. Colonial education trajectories and the recent inclusion of new environmental knowledge in African curriculum and civic learning contexts are examined. This points to how circulating environment and sustainability knowledge is being constituted in disciplinary fields as abstract concepts that are often difficult to relate to local sustainability concerns. Socio-cultural heritage and intergenerational meaning making are explored to uncover better situated ways of navigating much of the abstract ‘non-sense’ confronting African learners in many modern education contexts today. Illustrative examples of historical patterns of exclusion are scoped and two cases of pedagogical innovation are examined to contemplate how to navigate better situated and more relevant learning processes. Enacted in situated and co-engaged ways, ESD practices may enable the socio-cultural capital and environmental realities of local social-ecological contexts to articulate with better situated sustainability propositions for transitioning to more peaceful, just and sustainable futures.
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New type of metal-free and Zinc (II), In (III), Ga (III) phthalocyanines carrying biologically active substituents: Synthesis and photophysicochemical properties and photodynamic therapy activity
- Sen, Pinar, Managa, Muthumuni, Nyokong, Tebello
- Authors: Sen, Pinar , Managa, Muthumuni , Nyokong, Tebello
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/186971 , vital:44552 , xlink:href="https://doi.org/10.1016/j.ica.2019.03.010"
- Description: This study reports on novel phthalocyanines having benzimidazole units which are known to have biological properties. 4-(4-(5-chloro-1H-benzo[d]imidazol-2-yl) substituted metal-free, Zn(II), In(III) and Ga(III) phthalocyanines were synthesized, these newly synthesized molecules that were substituted by oxygen bridges were fully characterized. For the purpose of determining their potency for photodynamic therapy, the photophysicochemical properties were investigated in DMSO. The H2Pc (4) showed higher fluorescence quantum yield and fluorescence lifetime as compared to metallated phthalocyanines derivatives. However, the highest singlet oxygen (ΦΔ) and triplet state quantum yields (ΦT) values were obtained with the In(III)Pc (5).
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- Authors: Sen, Pinar , Managa, Muthumuni , Nyokong, Tebello
- Date: 2019
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/186971 , vital:44552 , xlink:href="https://doi.org/10.1016/j.ica.2019.03.010"
- Description: This study reports on novel phthalocyanines having benzimidazole units which are known to have biological properties. 4-(4-(5-chloro-1H-benzo[d]imidazol-2-yl) substituted metal-free, Zn(II), In(III) and Ga(III) phthalocyanines were synthesized, these newly synthesized molecules that were substituted by oxygen bridges were fully characterized. For the purpose of determining their potency for photodynamic therapy, the photophysicochemical properties were investigated in DMSO. The H2Pc (4) showed higher fluorescence quantum yield and fluorescence lifetime as compared to metallated phthalocyanines derivatives. However, the highest singlet oxygen (ΦΔ) and triplet state quantum yields (ΦT) values were obtained with the In(III)Pc (5).
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Non-timber forest product use and market chains along a deforestation gradient in southwest Malawi
- Mahonya, Sophie, Shackleton, Charlie M, Schreckenberg, Kate
- Authors: Mahonya, Sophie , Shackleton, Charlie M , Schreckenberg, Kate
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/177465 , vital:42824 , https://doi.org/10.3389/ffgc.2019.00071
- Description: The importance of non-timber forest products (NTFPs) to rural livelihoods is widely acknowledged globally, as is the income generated from casual or fulltime trade on village and urban markets. However, there is less understanding of how the condition or status of the neighboring landscapes influence the use of and trade in NTFPs. Here we report on the use and trade in NTFPs in four villages situated along a gradient of decreasing forest cover in southwest Malawi using a mixed-methods approach. Data were sourced via a survey of 286 households, value chain analysis of the four most commonly traded NTFPs (thatch grass, edible orchids, mushrooms, and wild fruits), key informant interviews with NTFP traders and direct observations.
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- Authors: Mahonya, Sophie , Shackleton, Charlie M , Schreckenberg, Kate
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/177465 , vital:42824 , https://doi.org/10.3389/ffgc.2019.00071
- Description: The importance of non-timber forest products (NTFPs) to rural livelihoods is widely acknowledged globally, as is the income generated from casual or fulltime trade on village and urban markets. However, there is less understanding of how the condition or status of the neighboring landscapes influence the use of and trade in NTFPs. Here we report on the use and trade in NTFPs in four villages situated along a gradient of decreasing forest cover in southwest Malawi using a mixed-methods approach. Data were sourced via a survey of 286 households, value chain analysis of the four most commonly traded NTFPs (thatch grass, edible orchids, mushrooms, and wild fruits), key informant interviews with NTFP traders and direct observations.
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