Faces and phases of Protestantism in African contexts : the Jacobus Capitein heritage

Peer reviewedThis essay explores the shape, form, tone, and outlook of Protestantism on the African continent. I present the argument that, by and large, ‘African Protestantism’ is of a different order for its Euro-American counterparts. In order to illustrate and pursue this line of argument, the case study of Jacobus Capitein, a 17th century African slave who was to later become the first Protestant minister trained in theology is advanced. Capitein, together with his work as a pastor at the slave castle called Elmina near the Ghanaian city of Cape Coast in Ghana, is held up as a mirror of African Protestantism. The essay concludes with a discussion about the prospects of Protestant Christianity in Africa.Church History Society of Southern Afric

Geographic variation in the phenotype of an African horseshoe bat species, Rhinolophus damarensis, (Chiroptera: Rhinolophidae)

Studies involving geographic variation in the phenotypes of bats help scientists to explain why these mammals are the most species rich mammalian order second only to rodents, with well more than 1 300 species occurring worldwide. Such species richness or high diversity is the manifestation of the generation of biodiversity through the splitting of lineages within bat species. A lineage of bat species can diversify into several lineages which then differentiate from each other in allopatry. Thus, the spatial separation of a lineage into several lineages could be attributed to geographical, ecological and environmental factors across the distributional range of the species. Similarly, vicariant events may also play a role in separating lineages within species. The Damara horseshoe bat species, Rhinolophus damarensis, is widely distributed but restricted to the western half of southern Africa, where it occurs across several major biomes. Formerly regarded as the subspecies, R. darlingi damarensis, it was elevated to full species status on the basis of genetic and phenotypic differences between it and R. darlingi darlingi. Rhinolophus damarensis is itself made up of two ecologically separated genetic lineages. A total of 106 individuals of R. damarensis were sampled from seven localities across its distributional range, with a view to determining and documenting the extent of geographic variation in body size, echolocation parameters, wing parameters, cranial shape and postcranial morphology of individuals from populations of R. damarensis across the distributional range of the species. Firstly, an investigation into geographic variation in resting echolocation frequency (RF) of the horseshoe bat species, R. damarensis was carried out in the western half of southern Africa (Chapter 2). Three hypotheses were tested. The first one, James’Rule (JR), states that individuals occurring in hot humid environments generally have smaller body sizes than conspecifics that occur in cooler, dryer environments, and the largest are expected to occur in cool, dry areas. On this basis and because of the known relationship between body size and RF, it was predicted that there should be a correlation between body size and climatic factors and between body size and RF. The second hypothesis was Isolation by Environment (IbE) mediated through sensory drive, which proposes that diversification of lineage may be driven by environmentally-mediated differences in sensory systems. Under this hypothesis, it was predicted that call frequency variation should be correlated with climatic variables. The third hypothesis was that Isolation by Distance (IbD) can influence phenotypic trait variation by restricting gene flow between populations. Under the Isolation by Distance (IbD) Hypothesis, it was predicted that call frequency variation should be partitioned in accordance with geographic distance between populations. To investigate the probability of the JR, IbE and IbD, the Akaike’s information criterion AICc candidate models were evaluated with different combinations of environmental (annual mean temperature and relative humidity), spatial (latitude and region) and biological (forearm as a proxy for body size) predictor variables to determine their influence on resting frequency (RF) across the distributional range of R. damarensis. Linear mixed effects models (LMEs) were employed to analyse the relationship between the response variable (RF) and the environmental, spatial and biological predictor variables. The influence of prey detection range and atmospheric attenuation was also investigated. The results showed no evidence for JR or for random genetic drift. Body size was neither correlated with RF nor environmental variables, suggesting that variation in RF was not the result of concomitant variation in body size as proposed by JR. Similarly, the Mantel test showed no IbD effect and there was therefore no evidence that genetic drift was responsible for the variation in RFs. In contrast, the LMEs showed that there was support for IbE in the form of an association between RF and region (in the form of the variable “Reg”) which was based on the two geographically separated genetic lineages. Furthermore, RF variation was also associated with the climatic variable AMT. The taxonomic status of R. damarensis was investigated using ecological traits and phenotypic characters including skulls, wings and echolocation (Chapter 3) and three dimensional (3D) scanned skulls and mandibles (Chapter 4). The main objective (Chapter 3 and Chapter 4) was to test whether previously reported genetic divergence between the two R. damarensis lineages was associated with phenotypic divergence. Morphometric and echolocation measurements were taken from hand held individual bats in the field, and skull measurements were taken from field collected voucher specimens as well as museum specimens. Discriminant Function Analyses (DFA) revealed that there was geographic variation among populations and lineages of R. damarensis. Multivariate Linear Regressions (MLV) and Linear models (LM) on the basal parts of bacula revealed significant differences between the southern and northern lineages of R. damarenis. The bacula of the two lineages of R. damarensis appear to have different shapes. Diversification through shape analyses (Chapter 4) was investigated using three dimensional (3D) geometric morphometric analyses based on X-ray microcomputed tomography (µCT) scanning of dried skulls and mandibles of R. damarensis. Procrustes Anova results of both mandibles and skulls indicated that there were no significant differences between sexes but that the shape of skulls and mandibles varied across different localities (Chapter 4). Canonical Variate Analysis (CVA) suggested that geographic variation in R. damarensis mandibles was based on the shape and thickness of the alveolar bone. Geographic variation in the skulls was based on changes in the rostrum, anterior medial swelling and brain case. Some populations had slightly deeper rostra, slightly larger anterior medial swellings and smaller braincases, whilst others had slightly shallower rostra, slightly smaller anterior medial swellings and larger braincases. The northern lineage was found to be separated from the southern lineage based on the changes in skull and mandible shape. Therefore, separation of lineages within R. damarensis (Chapter 4) could be associated with the foraging and feeding behaviour of the species under different ecological conditions due to ecological opportunity. Overall, differences in the RF were found to be associated with Isolation by Environment mediated through sensory drive and this has led to the formation of two regional (northern and southern) groupings in RF (Chapter 2). The two lineages were supported by both the phenotypic divergence (Chapter 3) and shape variation within R. damarensis skulls and mandibles (Chapter 4). Thus, phenotypic differences corresponded to genetic differences between the two lineages and provide support for IbE

Empowering children with intellectual disabilities : strategies perceived by primary care-givers and teachers.

Education is a key component of empowerment and has a significant impact on the economic and social development in any country. People who have intellectual disabilities are usually marginalized because they are considered limited in their abilities to contribute to the enhancement of the social and economic development in a country. The purpose of the research study was explore the perceptions of teachers and primary care-givers regarding strategies for empowering children with intellectual disabilities. The research design was qualitative in nature and a phenomenological methodology was adopted. Purposive sampling was used to recruit research participants from two primary schools for children with special needs in Katlehong on the East Rand. The sample size was twenty research participants; ten teachers and ten primary care-givers. The data gathered was analysed using Thematic Content Analysis. Results indicated that both teachers and primary care-givers are experiencing challenges empowering these children. Teachers require support, equipment and training to develop skills needed to address the educational needs. Primary care-givers need to be educated regarding how to support the educational programmes presented to their children, and encouraged to become personally involved in the educational lives of their children. The conclusion reached is that teachers’ efforts to empower children with intellectual disabilities are being obstructed due to many factors. Their voices need to be heard by the Department of Education on what strategies they perceive as being effective to empower children with intellectual disabilities. The primary care-givers need to gain a better understanding of concept ‘intellectual disability’ so that they can stimulate and support efforts made by the school to empower them

Book Review: Reshaping Gender and Class in Rural Spaces

Review of Reshaping Gender and Class in Rural Spaces, edited by Barbara Pini and Belinda Leach (Burlington, VT: Ashgate Publishing, 2011

A pedagogy for technology education : an indigenous perspective

The promotion of Afrocentric education is a current issue in Africa. This study aimed to establish the role of indigenous knowledge (IK) in the development of Senior Phase learners' design skills in Technology Education (TE). The study was guided by the constructivist theory, which is based on the assumption that prior learning can play a role in learning. When learning new things in a TE class, learners can benefit from their daily experiences in deriving meaning. Three schools from the Vhembe district in Limpopo Province participated in this study. The purposive sampling technique was used to select Technology teachers, heads of departments, TE specialists, learners and parents from these schools to participate in the study. Data were collected by way of individual and focus group interviews, participant observations and the analysis of documents and artifacts. The findings revealed that IK can increase learners' understanding and acquisition of design skills. However, this study revealed that the integration of IK can be hampered by factors such as the teachers' inability to use indigenous artifacts, the use of unvaried assessment methods, and a negative attitude towards culturally relevant pedagogy and IK. This study ultimately contributed an indigenous knowledge-based design process (IKBDP). Unlike the current conventional approach, an IKBDP has the potential to transform the teaching of Technology, thereby giving recognition to IK and accommodating learners from indigenous backgrounds.Ku yisa emahlweni dyondzo yo vona swilo hi tihlo ra Xiafrika, i mhaka leyi nga le mahlweni eAfrika. Ndzavisiso lowu wu na xikongomelo xa ku vona ndzima ya vutivi bya ndhavuko ku nga indigenoous knowledge (IK) eka nhluvuko wa vadyondzi va xiyimo xa le henhla hi swikili swa dizayini ya dyondzo ya theknoloji ku nga Technology Education (TE). Ndzavisiso wu leteriwe hi constructivist theory, leyi yi seketeriweke hi mianakanyo kumbe vonelo ra leswo dyondzo leyi vanhu va taka na yona ya khale (prior learning) yi nga tlanga ndzima eku dyondzeni. Loko ku dyondziwa leswintshwa eka klasi ya TE, vadyondzi va nga vuyeriwa hi ku landza ntokoto wa vona wa masiku eku kumeni tinhlamuselo. Swikolo swinharhu eka distriki ya Vhembe eka Xifundzhankulu xa Limpopo swi ve na xiavo eka ndzavisiso lowu. Xikongomelo xa thekniki ya ku endla sampuli xi tirhisiwe ku langa mathicara ya Technology, tinhloko ta tindzhawulo, vatokoti va TE, vadyondzi na vatswari eka swikolo leswi va ve na xiavo eka ndzavisiso. Ku hlengeletiwe data eka munhu hi wun'we wun'we na le ka mintlawa ya xikongomelo lexi hi ku endla mimburisano ya ti-interview, ku xiyaxiya leswi swi endliwaka hi vateki va xiavo na nxopanxopo wa tidokumente na swilo leswi swi endliweke hi mavoko (artifacts). Vuyelo bya ndzavisiso byi kombe leswo IK yi nga pfuneta ku twisisa ka vadyondzi na ku kuma swikili swa dizayini. Kambe, ndzavisiso lowu wu kombise leswo ku katsiwa ka IK swi nga kavanyetiwa hi swilo swo fana na ku tsandzeka ka mathicara ku tirhisa swiendliwa swa mavoko swa ndhavuko, ku tirhisiwa ka tindlela to ka ti nga cinciwi ta nkambelo, na mianakanyo leyi nga ri ku leyinene mayelana na ndlela ya madyondziselo na IK. Ndzavisiso lowu ekuheteleleni wu pfunete fambiselo ra leswi vuriwaka indigenous knowledge-based design process (IKBDP). Hi ku hambana na fambiselo ra ntolovelo, IKBDP yi na ntamo wo cinca madyondziselo ya TE, no pfuneta ku amukela IK no angarhela vadyondzi lava va humaku eka fambiselo ra vutivi bya ndhavuko.Tsweletso ya thuto ya Seaforika ke ntlha e e tsweletseng ga jaana mo Aforika. Maikaelelo a thutopatlisiso e ne e le go lebelela seabe sa kitso ya tshimologo (IK) mo tlhabololong ya bokgoni jwa thadiso jwa barutwana ba Legato le Legolwane mo Thutong ya Thekenoloji (TE). Thutopatlisiso e kaetswe ke tiori e e elang tlhoko ka moo batho ba ikagelang bokao ka gona (constructivist theory), e e ikaegileng ka mogopolo wa gore thuto e e ntseng e le gona e ka nna le seabe mo go ithuteng. Fa barutwana ba ithuta dilo tse dintšhwa mo phaposiborutelong ya TE, ba ka ungwelwa go tswa mo maitemogelong a bona go bona bokao. Dikolo di le tharo go tswa kwa kgaolong ya Vhembe kwa Porofenseng ya Limpopo di nnile le seabe mo thutopatlisisong eno. Go dirisitswe thekeniki ya go tlhopha sampole go ya ka maitlhomo a thutopatlisiso go tlhopha barutabana ba Thekenoloji, ditlhogo tsa mafapha, baitseanape ba TE, barutwana le batsadi go tswa kwa dikolong tseno go nna le seabe mo thutopatlisisong. Data e kokoantswe ka tsela ya go dirisa dipotsolotso tsa batho bongwe ka bongwe le ditlhopha tse di tlhophilweng, go ela bannileseabe tlhoko le tshekatsheko ya dikwalo le dilwana tsa tiro ya diatla. Diphitlhelelo di senotse gore IK e ka oketsa go tlhaloganya ga barutwana le go iponela bokgoni jwa go thadisa. Le fa go le jalo, thutopatlisiso eno e senotse gore go akarediwa ga IK go ka sitisiwa ke dintlha di tshwana le fa barutabana ba sa kgone go dirisa dilwana tsa tiro ya diatla tsa tshimologo, tiriso ya mekgwa ya tlhatlhobo e e sa farologanang, le megopolo e e sa siamang e e lebisiwang kwa katisong e e maleba mo setsong le IK. Kwa bokhutlong, thutopatlisiso eno e tshwaetse ka thulaganyo ya thadiso e e ikaegileng ka kitso ya tshimologo (IKBDP). Go farologana le mokgwa wa tlwaelo, IKBDP e na le kgonagalo ya go ka fetola go rutwa ga TE, mme ka go rialo e lemoga IK le go akaretsa barutwana ba ba nang le lemorago la tsa tshimologo.Curriculum and Instructional StudiesD. Ed. (Curriculum Studies

The Determinants of Government Expenditure: Analysis of the Empirical Literature from 1995 to 2016

This study reviewed literature studies on the determinants of government expenditure for the period 1995 to 2016. The research for the studies was conducted on the internet by combining government expenditure and determinants such as economic growth, government revenue, trade openness, poverty, public debt, dependency ratio, population, and urbanisation on the search engine. The finding of the literature provides conflicting results concerning the determinants of government expenditure. The results indicate that the government expenditure relationship with its determinants is significantly positive and negative, but in some cases it was found to be insignificant and weak. The study recommends that future studies use the newly developed econometric techniques on previous studies to see whether they can provide different results

The Causal Relationship between Trade Openness and Government Size in South Africa

This study empirically examines the causality between government size and trade openness including economic growth as an intermittent variable from 1980 to 2018 in South Africa. The study employed the Johansen-Juselius cointegration and Granger causality test. The results revealed that there is a long-run relationship between government size and trade openness. The Granger causality test revealed that there is a unidirectional causality from trade openness to government size. Therefore, the study does find support for a compensation hypothesis in South Africa

Estimating Poverty from Aerial Images Using Convolutional Neural Networks Coupled with Statistical Regression Modelling

Policy makers and the government rely heavily on survey data when making policyrelated decisions. Survey data is labour intensive, costly and time consuming, hence it cannot be frequently or extensively collected. The main aim of this research is to demonstrate how Convolutional Neural Network (CNN) coupled with statistical regression modelling can be used to estimate poverty from aerial images supplemented with national household survey data. This provides a more frequent and automated method for updating data that can be used for policy making. This aerial poverty estimation approach is executed in two phases; aerial classification and detection phase and poverty modelling phase. The aerial classification and detection phase use CNN to perform settlement typology classification of the aerial images into three broad geotype classes namely; urban, rural and farm. This is then followed by object detection to detect three broad dwelling type classes in the aerial images namely; brick house, traditional house, and informal settlement. Mask Region-based Convolutional Neural Network (Mask R-CNN) model with a resnet101 CNN backbone model is used to perform this task. The second phase, poverty modelling phase, involves using NIDS data to compute the poverty measure Sen-Shorrocks-Thon (SST) index. This is followed by using regression models to model the poverty measure using aggregated results from the aerial classification and detection phase. The study area for this research is Kwa-Zulu Natal (KZN), South Africa. However, this approach can be extended to other provinces in South Africa, by retraining the models on data associated with the location in question

An exploration of grade 5 learners' writing development

A thesis submitted to the Faculty of Humanities, University of the Witwatersrand, Johannesburg, in fulfilment of the academic requirement of the degree of Masters in Applied Languages, Johannesburg, 2015.This thesis examines the writing development of Grade 5 learners who participated in two writing interventions, The Mobile Literacies Project and The Gauteng Primary Literacy and Mathematics Strategies (GPLMS), which were conducted at the learners’ school in 2013. The learners, attending school at Mayeke Primary in Orange Farm, a predominantly black township in the South of Johannesburg, composed texts in the two projects using different tools. In the Mobile Literacies Project, the texts were produced using a digital tool, an iPod Touch, and the writing was done collaboratively: in pairs; whereas in the GPLMS writing was print-based: using pen and paper, in which the learners worked individually. In addition, writing in the latter project was aligned with the curriculum of Grade 5 English as a First Additional Language. Using qualitative methods, different sets of data were collected to gain an in-depth understanding of learners’ writing development in the two projects. Firstly, texts collected from the iPod Touch (for the Mobile Literacies Project) and the learners’ Grade 5 English exercise books (for GPLMS) were analysed to gain an understanding of how the learners’ writing development was enabled or constrained within the two projects. This analysis was done in conjunction with lesson observations, for the Mobile Literacies Project, and lesson plans for the GPLMS, which provided a picture of the pedagogy employed by the teachers to facilitate the learners’ writing and their writing development. Secondly, interviews were conducted with different staff members and learners. An analysis of interviews conducted with two sets of teachers: The Mobile Literacies teacher, and a Grade 5 English teacher who taught in GPLMS, as well as an Intermediate Phase (Grade 4-6) Language HOD and a GPLMS coach, was done to find out how they conceptualise writing development and how the projects enabled or constrained the learners’ writing development. Lastly, an analysis of interviews was conducted with 24 learners split into four focus groups of six learners. This was done to find out how the learners conceptualise writing development and how their own writing development was enabled or constrained by the projects. The analysis of the learners’ writing development in the Mobile Literacies Project shows that the learners were allowed opportunities to write in relation to a context which helped them to develop a sense of ownership in their writing. Therefore, the writing done in this project was more learner-centred, encouraging the use of their voices for writing. In the GPLMS project the writing activities were curriculum and teacher-centred. This culminated in writing that focused on accuracy without reflecting any personal style to enhance a more meaningful writing purpose. Within both projects the learners recognise spelling mastery as a sign of writing development