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Understanding propaganda: Noam Chomsky and the institutional analysis of power

- Cathey, Paul Eben

  • Authors: Cathey, Paul Eben
  • Date: 2009
  • Subjects: Chomsky, Noam -- Political and social views Propaganda Gramsci, Antonio, 1891-1937 -- Political and social views Social classes
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:2765 , http://hdl.handle.net/10962/d1002975
  • Description: This thesis argues that Noam Chomsky’s theory of propaganda is a useful way to understand class domination. The strengths and weaknesses of Chomsky’s theory are examined by means of a comparison with Antonio Gramsci’s theory of cultural hegemony. Since work that discusses and analyses Chomsky’s theory is sparse, this piece first gives a detailed explanation of his theory. This requires a short clarification of Chomsky’s terminology, focusing on his definitions of indoctrination and class. Thereafter a thorough account of Chomsky’s ideas regarding class structure, the indoctrinating functions of educational and media institutions and the difference between upper and lower class propaganda are discussed. A common criticism of Chomsky’s arguments is that they are conspiratorial. Thus, following the discussion of Chomsky’s theory I present an argument that Chomsky uses an institutional analysis as opposed to conspiracy theory to reach his conclusions. After arguing that Chomsky has a coherent, logical theory of propaganda that is not conspiratorial, this thesis shifts to a comparison of Chomsky and Gramsci’s theory. The elements of Gramsci’s theory that are relevant to Chomsky are discussed, focusing on their overall similarities, in particular, the question of consent. The final chapter consists of a comparison of the two theories, examining each theorist’s ideas on the nature of education, language, consent and the possible ways in which the lower classes can oppose their own oppression.
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Understanding social learning processes in a citrus farming community of practice

- Downsborough, Linda

  • Authors: Downsborough, Linda
  • Date: 2009
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/386949 , vital:68191 , xlink:href="https://www.ajol.info/index.php/sajee/article/view/122819"
  • Description: This paper focuses on what would traditionally be termed ‘non-formal’ learning processes in the context of a case study examining how citrus farming communities in the Patensie Valley in the Eastern Cape in South Africa were learning conservation practices. Communities of Practice theory was used to provide a conceptual framework for researching these learning interactions. Through historical and other qualitative research methods, I was able to establish that farmers in this community of practice learned mainly through responding to change and uncertainty, through forming and drawing on networks and community structures, through intergenerational learning, and through various interactions with each other. The historical research also pointed to the significance of policy and market-based changes in farmer learning, and their attachment to the land, which is shaped through historical associations with the land, and through embedded relations in farming practice cultures. The paper provides an example of how Communities of Practice theory, complemented by historical research, can be used to understand non-formal learning.
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Understanding the complexity of metabolic regulatory systems an investigation into the regulation of hydantoin-hydrolysis in Pseudomonas putida RU-KM3s

- De la Mare, Jo-Anne

  • Authors: De la Mare, Jo-Anne
  • Date: 2009
  • Subjects: Pseudomonas , Hydantoin , Hydrolysis , Enzymes -- Regulation
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:3993 , http://hdl.handle.net/10962/d1004053 , Pseudomonas , Hydantoin , Hydrolysis , Enzymes -- Regulation
  • Description: It has been well-established that Pseudomonas species possess extremely versatile metabolic systems allowing them to utilise a wide range of nutrient sources and, furthermore, that the regulation of these enzyme systems involves highly evolved and sophisticated regulatory machinery. This study examined the complexity of metabolic regulation in Pseudomonas using the hydantoin-hydrolysing system of the environmental isolate, Pseudomonas putida RU-KM3s. In this system, the genes encoding dihydropyrimidinase and β-ureidopropionase (dhp and bup) are arranged divergently on the chromosome, separated by a 616 bp intergenic region involved in the transcriptional regulation of these genes. The focus was on the transcriptional regulation of dhp expression. DHP activity was found to be sensitive to several environmental signals including growth phase, carbon catabolite repression (CCR), substrate induction and quorum sensing (QS). Bioinformatic analysis of the intergenic region upstream of dhp revealed a number of putative binding sites for transcriptional regulators, including recognition sequences for the alternate sigma factors σ54 and σ38, as well as for the global regulators Anr (for anaerobic regulator) and Vfr (for virulence factor regulator). The targeted disruption of the genes encoding the transcriptional regulators, Vfr and the major CCR protein, Crc, resulted in a partial relief from repression for the vfr- mutant under quorum sensing conditions and a general decrease in activity in the crc- mutant. This data suggested that both Vfr and Crc were involved in regulating DHP activity. Mutational analysis of the dhp promoter revealed that at least two sites were involved in regulating transcriptional activity, one which mediated activation and the other repression. These sites were designated as a putative Anr box, situated 232 bp from the start codon of dhp, and a CRP-like binding site, at a position 213 bp upstream of dhp. Taken together, this data shows the involvement of several global regulatory factors in controlling the expression of dhp. A complex synergistic model was proposed for the transcriptional regulation of dhp, involving alternate sigma factors in addition to both global and specific regulators and responding to a number of environmental signals associated with growth phase, including nutrient availability, cell density and oxygen status.
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Understanding the differences in marking performance of JSC mathematics markers in Namibia : a case study

- Mutuku, Elizabeth

  • Authors: Mutuku, Elizabeth
  • Date: 2009
  • Subjects: Educational change -- Namibia , Mathematics -- Namibia -- Examinations -- Case studies , Mathematics -- Study and teaching -- Namibia -- Case studies , Grading and marking (Students) -- Namibia -- Case studies
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1999 , http://hdl.handle.net/10962/d1015223
  • Description: Education reform in Namibia brought about changes to mathematics education since independence. This has put pressure on the government to provide both resources and qualified mathematics teachers to help drive the reform process in all teaching and learning activities. This included availing reliable and valid national examination results which is a measure of whether the newly introduced programmes are working or not. For the Ministry of Education this meant training more mathematics teachers and ensuring that competent and reliable teachers are appointed for marking national examination every year. The teachers' training process however, has not been going as fast as it was expected and year after year the Directorate of National Examinations and Assessment experienced problems in obtaining competent teachers for the marking of national examination. The purpose of the study was to understand the differences in marking performances of the JSC mathematics national examination markers. Particularly the study was to create a clear and detailed understanding of different factors that could possibly affect the marking performance of different markers. In addition, the study was to investigate the effect the mathematical content knowledge of the markers has on their marking performance. It was evident from the findings that their mathematical content knowledge had influenced their marking performance. Moreover the research findings also gave a strong indication that there are other factors that were influencing the markers marking performance. These were the markers' knowledge of the assessment and marking process, the markers' marking experience, the markers' socioeconomic background. The difference in their moderators' input has emerged as the other factors that have influenced their performance in marking and consequently contributed to the differences in their marking performances.
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Unearthed : personifications of widowhood and acts of memory : volume 1 and 2

- Arbi, Linda Margaret

Universal digital inclusion: Beyond connectivity, affordability and capability

- Thinyane, Mamello, Terzoli, Alfredo

  • Authors: Thinyane, Mamello , Terzoli, Alfredo
  • Date: 2009
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/430876 , vital:72724 , https://ieeexplore.ieee.org/abstract/document/5338911
  • Description: Traditionally digital marginalization and exclusion were understood to be a factor of connectivity to the Internet, affordability of the technology, and the capability of the communities to utilize the technology. ICT for development (ICT4D) interventions have been undertaken that address these specific factors of marginalization, however, it remains that com-munities are still excluded from the global knowledge society. In this paper we argue that key factors towards reaching greater inclusion and participation of the digitally marginalized communities, are the knowledge-centricity and context-sensitivity of the undertaken interven-tions. The solutions developed, and the services deployed, must intrin-sically encapsulate the local knowledge within the community of de-ployment. Based on this premise we have developed an architectural framework, named PIASK, that formalizes the contextualization of the developed applications within the socio-technical environment and po-sitions them within the local knowledge system of the community. We highlight the components of this architecture and discuss its implemen-tation through a knowledge platform for a community in South Africa.
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Using a transdisciplinary framework to examine mathematics classroom talk taking place in and through a second language

- Graven, Mellony, Robertson, Sally-Ann

  • Authors: Graven, Mellony , Robertson, Sally-Ann
  • Date: 2009
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/69838 , vital:29586 , https://DOI: 10.1007/s11858-018-0952-2
  • Description: This paper proposes a transdisciplinary framework to allow for a multifocal exploration of classroom talk practices. It draws on data from a broader study of talk in South African Grade 4 mathematics classrooms where the language of teaching and learning (English) was the home language for neither the teachers nor their students. Lesson transcript data from one teacher’s lessons on fractions are used to demonstrate how working with three strands of conceptual insight from the disciplines of psychology, sociology and linguistics conduces to a potentially richer understanding of a teacher’s use of classroom talk in mediating her students’ mathematical understanding. By drawing on elements of Vygotsky’s sociocultural psychology, we make visible in the lesson data the ways in which this teacher used the ‘everyday’ in trying to navigate her students’ towards more ‘scientific’ conceptualizations of unit fractions. By then taking up aspects of Bernstein’s sociological work, we articulate, and make visible, how societal circumstances impinge on students’ access to exploratory mathematical discourse needed for epistemological access to abstract and generalized mathematical concepts. Finally, through Halliday’s work on the power of particular linguistic registers for meaning-making, we highlight challenges in learning mathematics in and through a second language and reveal the constraints placed on students’ opportunity to maximally exploit the distinct forms of meaning contained within the mathematics register.
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Using pictograms in a patient information leaflet to communicate antiretroviral medicines information to HIV/AIDS patients in rural South Africa:

- Dowse, Roslind

  • Authors: Dowse, Roslind
  • Date: 2009
  • Language: English
  • Type: text , book
  • Identifier: http://hdl.handle.net/10962/156817 , vital:40053 , ISBN
  • Description: The objectives were to design a simple, illustrated patient information leaflet for the antiretroviral regimen of stavudine, lamivudine and efavirenz and to evaluate its readability and acceptability in the local Xhosa population. In order to achieve this, a further objective was to design and evaluate illustrations to include in the patient information leaflet which were culturally acceptable and well interpreted. Illustrations or pictograms were designed to illustrate selected instructions appearing in the patient information leaflet and were individually tested in 30 Xhosa participants who had a maximum of 8 years of formal schooling. Results were used to improve the pictograms for inclusion in the patient information leaflet. The patient information leaflet was designed and tested in sixty Xhosa participants with varied levels of education who had stated they could read. Demographic data were collected and they were then asked to read the patient information leaflet, available in both English and isiXhosa, and a series of questions was asked to assess its comprehension and acceptability. The overall average rate of understanding was 95. Six of the 20 questions were located and understood by all participants, and only two questions resulted in less than an 85 correct response. Physical appearance and quantity of information were highly rated and all participants were enthusiastic about the inclusion of pictograms.
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Using semantic knowledge to improve compression on log files

- Otten, Frederick John

  • Authors: Otten, Frederick John
  • Date: 2009 , 2008-11-19
  • Subjects: Computer networks , Data compression (Computer science) , Semantics--Data processing
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:4650 , http://hdl.handle.net/10962/d1006619 , Computer networks , Data compression (Computer science) , Semantics--Data processing
  • Description: With the move towards global and multi-national companies, information technology infrastructure requirements are increasing. As the size of these computer networks increases, it becomes more and more difficult to monitor, control, and secure them. Networks consist of a number of diverse devices, sensors, and gateways which are often spread over large geographical areas. Each of these devices produce log files which need to be analysed and monitored to provide network security and satisfy regulations. Data compression programs such as gzip and bzip2 are commonly used to reduce the quantity of data for archival purposes after the log files have been rotated. However, there are many other compression programs which exist - each with their own advantages and disadvantages. These programs each use a different amount of memory and take different compression and decompression times to achieve different compression ratios. System log files also contain redundancy which is not necessarily exploited by standard compression programs. Log messages usually use a similar format with a defined syntax. In the log files, all the ASCII characters are not used and the messages contain certain "phrases" which often repeated. This thesis investigates the use of compression as a means of data reduction and how the use of semantic knowledge can improve data compression (also applying results to different scenarios that can occur in a distributed computing environment). It presents the results of a series of tests performed on different log files. It also examines the semantic knowledge which exists in maillog files and how it can be exploited to improve the compression results. The results from a series of text preprocessors which exploit this knowledge are presented and evaluated. These preprocessors include: one which replaces the timestamps and IP addresses with their binary equivalents and one which replaces words from a dictionary with unused ASCII characters. In this thesis, data compression is shown to be an effective method of data reduction producing up to 98 percent reduction in filesize on a corpus of log files. The use of preprocessors which exploit semantic knowledge results in up to 56 percent improvement in overall compression time and up to 32 percent reduction in compressed size. , TeX , pdfTeX-1.40.3
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Using the van Hiele theory to analyse geometrical conceptualisation in grade 12 students: a Namibian perspective

- Mateya, Muhongo

  • Authors: Mateya, Muhongo
  • Date: 2009
  • Subjects: Hiele, Pierre M. van Hiele-Geldof, Dina van Geometry -- Study and teaching (Secondary) -- Namibia Mathematics -- Study and teaching (Secondary) -- Namibia
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1820 , http://hdl.handle.net/10962/d1003706
  • Description: The study reported here utilised a theory of levels of geometric thinking. This theory was proposed and developed by two Dutch mathematics educators, Pierre van Hiele and his wife, Dina van Hiele-Geldof. The van Hiele theory enables investigations into why many students experience difficulties in learning geometry. In many nations, such as the UK, the USA, Netherlands, the USSR and to a certain extent, Nigeria and South Africa, research evidence has indicated that the overall students’ mathematical competencies are linked to their geometric thinking levels. This study is the first of its kind to apply the van Hiele theory of geometric thinking in the Namibian context to analyse geometrical conceptualisation in Grade 12 mathematics students. In all, 50 Grade 12 students (20 from School A and 30 from School B) were involved in this study. These students wrote a van Hiele Geometry Test adapted from the Cognitive Development and Achievement in Secondary School Geometry test items. Thereafter, a clinical interview with the aid of manipulatives was conducted. The results from this study indicated that many of the School A and School B students who participated in the research have a weak conceptual understanding of geometric concepts: 35% of the School A and 40% of the School B subsamples were at the prerecognition level. 25% and 30% of the School A, and 20% and 23.3% of the School B students were at van Hiele levels 1 and 2 respectively. An equal number of students but different in percentages, 2 (10%) in School A and 2 (6.7%) in School B, were at van Hiele level 3. Only one student from School B attained van Hiele level 4. These results were found to be consistent with those of previous similar studies in UK, USA, Nigeria and South Africa. The findings of this study also highlight issues of how the Namibian Grade 12 geometry syllabus should be aligned with the van Hiele levels of geometric thinking as well as the use of appropriate and correct language in geometrical thinking and problem solving.
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Utopianism and educational processes in the United Nations Decade of Education for Sustainable Development

- Lotz-Sisitka, Heila

  • Authors: Lotz-Sisitka, Heila
  • Date: 2009
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/184756 , vital:44269 , xlink:href="https://cjee.lakeheadu.ca/article/view/866"
  • Description: Recent international policy literature on Education for Sustainable Development puts forward utopian concepts of sustainable development and transformed learning as objects for educational thinking and practice. This paper, drawing on three illustrative educational investigations with youth in a South African context, critically examines how we might engage with utopian concepts such as those put forward in the United Nations Decade of Education for Sustainable Development. It incorporates an engagement with other related utopian concepts such as democracy and social justice, which feature strongly in post-apartheid societal reconstruction in South Africa. The paper argues that if we are to avoid valuable utopian concepts such as democracy, sustainability, and social justice from becoming doxic knowledge, a reflexive realist orientation might best guide our educational engagements with such concepts. Such an approach to utopianism would take account of contextual realities and situated learning processes, and foster a creativity of action that is constructivist in nature, but not relativist.
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Utopianism and educational processes in the United Nations Decade of Education for Sustainable Development: a critical reflection

- Lotz-Sisitka, Heila

  • Authors: Lotz-Sisitka, Heila
  • Date: 2009
  • Subjects: To be catalogued
  • Language: English
  • Type: text , book chapter
  • Identifier: http://hdl.handle.net/10962/437367 , vital:73373 , ISBN 978-9086860937 , https://doi.org/10.3920/9789086866915_007
  • Description: South Africa and its recent political transformation pro-cess, infused with hope for a better future, is often pre-sented as a utopian form of democracy – or an icon of hope – nationally and in the contemporary global land-scape. Similarly, adult hopes for youth, and youth idealism itself, are often utopian in nature, and young people are often iconised in society as the hope for the future. Re-cent international policy literature on education for sus-tainable development puts forward the utopian concepts of sustainable development and transformed learning (UNESCO 2005a) as objects for educational thinking and practice, and ethical codes such as the Earth Charter (www.earthcharter.org) present useful visions and guid-ance on how to think about and create a better world. But, the realities of the day keep such utopianism in check. Today, South Africa is experiencing xenophobic vio-lence, extreme levels of crime, and continued disenfran-chisement.
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Variability analysis of a sample of potential southern calibration sources

- Hungwe, Faith

Variability in the fractionation of stable isotopes during degradation of two intertidal red algae

- Hill, Jaclyn M, McQuaid, Christopher D

  • Authors: Hill, Jaclyn M , McQuaid, Christopher D
  • Date: 2009
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/444649 , vital:74257 , https://doi.org/10.1016/j.ecss.2009.02.001
  • Description: Macroalgae contribute to intertidal food webs primarily as detritus, with unclear implications for food web studies using stable isotope analysis. We examined differences in the thallus parts of two South African rhodophytes (Gelidium pristoides and Hypnea spicifera) and changes in overall δ13C, δ15N signatures and C:N ratios during degradation in both the field and laboratory. We hypothesized that both degrading macroalgal tissue and macroalgal-derived suspended particulate material (SPM) would show negligible changes in δ13C, but enriched δ15N signatures and lower C:N ratios relative to healthy plants. Only C:N laboratory ratios conformed to predictions, with both species of macroalgae showing decomposition related changes in δ13C and significant depletions in δ15N in both the field and laboratory. In the laboratory, algal tissue and SPM from each species behaved similarly (though some effects were non-significant) but with differing strengths. Gelidium pristoides δ13C increased and C:N ratios decreased over time in tissue and SPM; δ15N became depleted only in SPM. Hypnea spicifera, δ13C, δ15N and C:N ratios all decreased during degradation in both SPM and algae.
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Vocational language learning and how it relates to language policy issues

- Maseko, Pamela

Vocational language learning and teaching at a South African university: preparing professionals for multilingual contexts

- Maseko, Pamela, Kaschula, Russell H

  • Authors: Maseko, Pamela , Kaschula, Russell H
  • Date: 2009
  • Subjects: Intercultural communication in education -- South Africa , African languages , Cultural awareness , Communication and culture , Multilingualism -- South Africa
  • Language: English
  • Type: article , text
  • Identifier: http://hdl.handle.net/10962/59412 , vital:27597 , doi: 10.5842/38-0-60
  • Description: This paper highlights the methodology that has been used at Rhodes University and other South African universities in implementing vocation-specific African language learning programmes. Essentially, the paper links the curriculum design to the theoretical paradigm of intercultural communication. Intercultural theory is used as a basis to develop vocation-specific courses where language and culture are taught, for example, to second language learners of isiXhosa at Rhodes University. These courses include courses for Pharmacy and Law students. This paper offers a new theoretical paradigm for intercultural language teaching. Furthermore, examples from specific courses are provided in order to illustrate how this theoretical paradigm can be implemented in a practical way. The impact of multilingualism and intercultural communication in the wider legal and healthcare work environment in South Africa is also discussed.
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Water-soluble phthalocyanines mediated photodynamic effect on mesothelioma cells

- Saydan, Nil, Durmus, Mahmut, Dizge, Meltem G, Yaman, Hanif, Gürek, Ayşe G, Antunes, Edith M, Nyokong, Tebello, Ahsen, Vefa

  • Authors: Saydan, Nil , Durmus, Mahmut , Dizge, Meltem G , Yaman, Hanif , Gürek, Ayşe G , Antunes, Edith M , Nyokong, Tebello , Ahsen, Vefa
  • Date: 2009
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/263480 , vital:53631 , xlink:href="https://doi.org/10.1142/S1088424609000863"
  • Description: The new peripherally 2-mercaptopyridine tetrasubstituted zinc phthalocyanine (2) and its quaternized derivative (3) have been synthesized and characterized by elemental analysis, IR, 1H NMR spectroscopy, electronic spectroscopy and mass spectra. The quaternized compound (3) shows excellent solubility in water, which makes it a potential photosensitizer for use in photodynamic therapy (PDT) of cancer. Fluorescence and singlet oxygen quantum yield measurements were conducted on 2-mercaptopyridine appended zinc phthalocyanines in dimethylsulphoxide (DMSO) for both the non-ionic (2) and quaternized (3) derivatives, and in aqueous media for the water-soluble complex 3. General trends are described for fluorescence and singlet oxygen quantum yields of these compounds. In this study, the cells were incubated with a novel water-soluble zinc phthalocyanine derivative (3) and thereafter the cells were illuminated using broad-band incoherent light source of various energy levels. Cytotoxicity of PDT on two pleural malign mesothelioma cell lines was determined by colorimetric proliferation assay. In addition, after PDT treatment, determination of activity matrix metalloproteinases (MMPs) were evaluated using gelatine zymography.
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Wax discrimination in the Lesser Honeyguide Indicator minor

- Hepburn, H Randall

  • Authors: Hepburn, H Randall
  • Date: 2009
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/448440 , vital:74730 , https://doi.org/10.2989/OSTRICH.2009.80.2.11.838
  • Description: Beeswaxes consist of complex mixtures of homologous neutral lipids that vary among species of honeybees but share many compounds in common (Aichholz and Lorbeer 1999). However, the beeswaxes of subspecies of the honeybee, Apis mellifera, can only be distinguished after careful calculation of the peak elution pattern area ratios of selected compounds (Brand-Garnys and Sprenger 1988). This is of interest in an ornithological context because honeyguides (Indicatoridae) subsist in large measure on the pillage of the combs of honeybees (Friedman 1955) and their enzymic capacity to digest beeswax has been demonstrated experimentally (Friedmann and Kern 1956, Diamond and Place 1988, Downs et al. 2002). Honeyguides can utilise olfactory orientation to find beeswax (Stager 1967, Archer and Glen 1969) and can even detect and seek out the combs of honeybees stored in hives devoid of bees in darkened out-buildings (HRH pers. obs.).
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We are all the public

- Pithouse, Richard, 1970-

  • Authors: Pithouse, Richard, 1970-
  • Date: 2009
  • Language: English
  • Type: Article
  • Identifier: vital:6198 , http://hdl.handle.net/10962/d1008562
  • Description: [from introduction]: Across the country the most vulnerable people in our society are being subject to brazenly unlawful and often violent action at the hands of the state. Homeless people, refugees, sex workers, street traders and shack dwellers are all being taught, in the most literal sense of the term, to know their place. But state illegality is not only aimed at the segregation of physical space. It is also about ensuring that the people on the margins of society know their political place.
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We need a conversation about development

- Pithouse, Richard, 1970-

  • Authors: Pithouse, Richard, 1970-
  • Date: 2009
  • Language: English
  • Type: Article
  • Identifier: vital:6199 , http://hdl.handle.net/10962/d1008563
  • Description: [From the introduction] From the Communist Party across to the corporate spin-doctors and down to the Development Committees in the shack settlements, more or less everybody in South Africa speaks the language of development. In some ways this is a good thing. It indicates a hard won agreement that the realities of inequality in our society are so cruel and perverse that any social project can only be credible if it will ameliorate these divisions and the suffering they cause.
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