11613 research outputs found
Sort by
DAVEY, AM Inventory of documents
No full textCOVERAGE 1960-1966 0.10 metreLecturer in history at the University of Cape Town; Document pertaining to Progressive Part
The context and practice of school-based mentoring of pre-service teachers in Zimbabwe
No full textChanges in teacher education that are experienced worldwide have continued to influence
teacher preparation in developing countries such as Zimbabwe. These changes have seen
teacher education literally shifting to include schools in recent years and this has placed new
demands on teachers in schools. However, there has not been a corresponding capacitation of
school personnel for their new roles. In addition to teaching, teachers have been expected to
play a critical role in teacher education as mentor teachers. This study, besides analysing the
differences in mentoring contexts in secondary schools, sought to determine if and how
different mentoring contexts shape mentoring practices. In an attempt to provide a deeper
understanding of how school-based mentoring of pre-service teachers is practiced in various
school contexts of Zimbabwe and with what consequences for the classroom practices of the
pre-service teachers, the current study used a qualitative multi-case study to investigate
mentoring contexts and practices in selected secondary schools in one district in Zimbabwe.
The unit of analysis was the mentoring pair in conveniently selected secondary schools. The
mentoring pairs were purposively sampled and comprised of pre-service teachers who were
on Teaching Practice (TP) in their final semester and their mentors from a population of
Postgraduate Diploma in Education (PGDE) students of the university that was studied.
The data analysis process for interviews, observations of mentoring sessions and documents
resulted in the emergence of the main themes and selected sub-themes from the categories.
The Vygotskian socio-cultural theory with its main tenets of mental development based on
social interaction, the use of the more knowledgeable other (MKO), and the zone of proximal
development (ZPD) was used as a lens to interpret findings of the present study. The main
themes were contexts, mentoring practices, pre-service teachers’ classroom practices and
improvements in mentoring of pre-service teachers.
The findings of this study suggest that the contexts in which mentoring took place were
different and as expected, there were different challenges which formed the basis for improving the practice of mentoring pre-service teachers in secondary schools. In addition,
the current study established that teachers, despite not having formal training in mentoring;
they have been able to contribute to teacher development using their limited expertise in teacher education and at times limited resources. Though teachers were not specifically
trained as mentors, the way they have accepted their assumed new role of teacher educator in
the schools can be commended as they have made significant contributions to teacher
development for no extra pay. Furthermore, teachers were informally in-serviced during the
mentoring process, especially on contemporary teaching methodologies. However, the study
recommends the establishment of communities of practice as part of the schools-university
partnership to capacitate the mentoring pairs. Consequently, the study proposes an evolving
model for improving school-based mentoring of pre-service teachers that could lead to
improved teaching and learning in secondary schools as they offer opportunities for learning
to teach.SANRAL Chair, School of Mathematics Natural Sciences and Technology Educatio
MOOLMAN, Theodorus Daniel du Plessis Inventory of documents
No full textCOVERAGE 1914-1966; 2 Files; [Scrapbook]Scrapbook, with Dr H F Verwoerd as topic, of T.D du P. Moolman, S.A. Railway Policeman [1946-1970]
Sporting subalternities and social justice: rethinking South African sports studies
No full textPublisher's versio
RADLOF, Frans Gustav Theodor Inventory of documents
No full textCOVERAGE 1976-1992; 198 Files; 4.22 metrePrivate papers of F.G.T. Radlof, General manager Banana Control Board [1958-1968], Manager in ARMSCOR and Editor of SALVO, SA Association of Industrial Editors [SAAIE], Communicator of the Year in 1977
SMARTT, Sir Thomas William Inventory of documents
No full textCOVERAGE 1912-1913; 1 File; 0,66 Metre.Private papers of Sir T.W. Smartt, Member of the Cape Parliament [1893-1910]; Unionist Party MP Fort Beaufort [1910-1920]; South African Party MP Fort Beaufort [1920-1929]; Minister of Agriculture [1921-1924]
DE VILLIERS, Wilhelm Bruckner Inventory of documents
No full textCOVERAGE 1914-1945; 11 Files; 0,89 metres.Private papers of W.B. de Villiers, MP Barkly West [1920, 1924-1929], Kuruman [1929], Stellenbosch [1929-1938], Senator [1939-1948]
Analysis of exact groundwater model within a confined aquifer
No full textThe main aim of this research was to develop the exact groundwater flow model within a confined aquifer. We argued that, the Theis groundwater flow model is an approximation of the real formulation of the model as he removed some components of the equation to have a simple model. Initially, we derived an exact groundwater flow equation for a confined aquifer so as to include all high order terms that was removed by Theis and also to take into account the assumptions that was used during the derivation of the groundwater flow by Theis. Thereafter, we proved that the new groundwater flow equation has unique solution. We then derived a new numerical scheme for singular partial differential equation that combines the Mellin transform and the Lagrange approximation of a continuous function. The Mellin transform was used to remove the singularity in the newly developed exact groundwater flow equation for a confined aquifer. The equation became ordinary, wherein we used the Adam Bashforth method to the ordinary differential equation in Mellin space. The inverse of Mellin was then used to get the exact numerical scheme in real space. The derivation of the exact solution of groundwater flow equation for a confined aquifer was derived and shown using the Boltzmann transform. We presented the stability analysis of the new numerical scheme using the von Neumann method. We also discussed the application of data in groundwater modelling. We argued that, most methods used in the collection of data lead to incorrect representation of reality or the system under investigation. The application of mathematics to aid in data processing was also suggested. Various interpolation methods used in groundwater were also discussed. We proposed the concept of Multi-step interpolation technique. Lastly, numerical simulations using experimental field data was presented. Our solution was compared to Theis. Our simulations show the importance of scaling factor which was removed from the Theis groundwater flow equation. The simulations also show that the change in drawdown depend on the scaling factor.University of Free Stat
Taxonomy, growth and food spoilage characteristics of a novel Chryseobacterium species
No full textAnimals, humans and food environments are major sources for the isolation of Chryseobacterium species. Spoilage of food by these organisms have become significant in poultry, red meat, milk and fish. Other sources include Beer-bottling plants and lactic acid beverages. Spoilage of food by Chryseobacterium species is mainly due to its proteolytic characteristics. The genus Chryseobacterium was proposed in 1994 and has since expanded to a total of 112 species today.
The first aim of this study was to use a polyphasic approach to describe and name strain 7_F195T previously isolated from chicken feather waste collected from an abattoir in Bloemfontein. Methods used for describing strain 7_F195T included: whole genome and 16S rRNA gene sequencing; phylogenetic treeing methods, conventional and commercial system methods for phenotypic characterization; fatty acid profile, polar lipid and respiratory lipoquinone analysis.
Chryseobacterium flavum, C. gleum and C. arthrospaerae were identified as being the nearest neighbours. The DNA G+C content of strain 7_F195T supported the affiliation of the strain to the genus Chryseobacterium. The digital DNA-DNA hybridization, ANI and AAI values confirmed that strain 7_F195T does not belong in the following species: C. flavum, C. gleum or C. arthrosphaerae. Various similar phenotypic characteristics were reported between strain 7_F195T and the reference strains, but many differences were also noted. Results obtained from the fatty acid profile, polar lipid and respiratory quinone analysis supported the affiliation of strain 7_F195T to the genus Chryseobacterium. Based on the data generated from this polyphasic study, strain 7_F195T represents a novel Chryseobacterium species for which the name Chryseobacterium pennipullorum sp. nov. is proposed.
The second aim of this study was to investigate the temperature growth relationship of a novel Chryseobacterium species, strain 7_F195T, isolated from poultry feather waste in comparison to C. carnipullorum and C. vrystaatense that were isolated from raw chicken portions. The growth study was conducted using a Temperature Gradient Incubator and growth rates and cardinal temperatures were determined through optical density measurements. Temperature profiles and Arrhenius plots were constructed.
Strain 7_F195T showed a higher maximum specific growth rate at its optimum temperature in comparison with C. carnipullorum and C. vrystaatense. All the cultures showed relatively low sensitivity to temperature change in the temperature range 25 - 32°C. Strain 7_F195T was the most sensitive while C. vrystaatense was the least sensitivite towards temperature change in the temperature range of about 15 – 26°C. The results of this study concluded that strain 7_F195T may have the ability to cause spoilage at a faster rate than C. carnipullorum and C. vrystaatense at its optimal temperature.
Chryseobacterium pennipullorum 7_F195T was successfully classified, described and named as a new species of the genus Chryseobacterium. The growth kinetics of C. pennipullorum 7_F195T was determined and will add value to future research on its food spoilage potential.National Research Foundation (NRF
STOFFBERG, Francina Susanna Aletta (Cinie) [Oumatjie] Inventory of documents
No full textCOVERAGE 1887-1970; 79 Files; 1,89 Metres.
AUDIO CASSETTES IN ARCA COLLECTION = 1Private papers of F.S.A. Stoffberg, born Rosseau and married T.C. Stoffberg [1883] who became a senator [1928-1937]. After his death in 1937 Oumatjie Stoffberg became known for her efforts to relief the hardship of her fellow-man