An ergonomics approach to understanding perceived barriers to the provision of high-quality healthcare: a Sarah Baartman District clinics case study
- Authors: Card, Jason
- Date: 2020
- Subjects: Medical care -- South Africa -- Eastern Cape , Public health -- South Africa -- Eastern Cape
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/170536 , vital:41933
- Description: Background:The complex nature of healthcare systemsoftenresultsinthe emergence of context-specific barriers that limit the ability for healthcare stakeholders to ensure safe and effective care delivery. In low-to middle-income (LMIC) countries, such as South Africa (SA), limited financial, material and human resources coupled withpoor infrastructure and poor public health determinants, includingpoverty andpoor education, affectthe ability to maintain andimprove on quality care outcomes.Understanding what different stakeholders perceive as barriers, and if these barriers are understood at different levels, is therefore important when attempting to mitigate the risk for unsafe or inefficient care delivery. Human Factors and Ergonomics (HFE) adoptssystems and participatory approaches for the exploration, analysis, and design of socio-technical systems to optimize both human wellbeing and system performance.The barriers to safe and effective healthcare delivery, from an HFE perspective, are not known in the South African context, particularly in parts of the Eastern Cape Province. Elucidatingthesebarriers, even if self-reported,may guidefuture efforts aimed at mitigating risks.The purpose of this study, therefore,wasto explore and highlight the perceived systemic barriers to local and national healthcare delivery, within the Sarah Baartman District in the Eastern Cape Province of South Africa.Methods: Ashort discussion aimed at introducing HFE and components of the Work Systems Model, followed by a survey that captured participant demographics, job characteristics, the perceived national and local systemic barriers, and proposed solutions, was administered withhealthcare stakeholders from 14 primary healthcare facilities and 1 department office within the Sarah Baartman District.Participants (n=120) included management, pharmacy, administration, maintenance, community-and home-based care and nursing staff.Data from the surveys were thematically analysed and categorised according to components of the work system model (Carayon, 2009) and respective workgroup.Results: The findings revealed many overlapping,systemic barriersthat includedshortages of staff, poor management and leadership, a lack of equipmentand basic necessities, poor infrastructure, patient complexity,and high workloads. The results further indicate that the way in which the reported barriers affect worksystem interactionsand performance are unique to different workgroups. Stakeholders iiproposedthat,among others, the absorption of contract workers, the provision of training and adequate human and medical resources and the maintenance of facilities may mitigate the barriers and improve healthcare delivery.Conclusion: The findings highlight a myriad of perceived systemic barriers perceived in the Sarah Baartman district, some of which were fundamental for the effective function of any healthcare system. These barriers may have wide-spread implications for stakeholders at all levels, ultimately affecting the performance, satisfaction and safety and the quality of care. It is especially important to consider these barriers in light of the COVID-19 epidemic, which emerged throughout this study and the major threat it presents to South African healthcare systems. Future research should aim to explore how these barriers interact to contribute to processes and outcomes, as well as explore the perceptions at provincial and national levels in order to better identify areas and strategies for improvement.
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- Date Issued: 2020
An analysis of visualization processes used by selected Grade 11 and 12 learners when solving algebraic problems: a Namibian case study
- Authors: Josef, Joseane
- Date: 2017
- Subjects: Visualization , Mathematics -- Study and teaching -- Namibia -- Case studies , Mathematics -- Study and teaching (Secondary) -- Activity programs , Algebra -- Study and teaching (Secondary) -- Namibia -- Case studies
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/7843 , vital:21309
- Description: Visualisation is gaining visibility in mathematics education research. It is a powerful tool for solving different types of problems in many areas of mathematics, including Algebra - the mathematical domain of this study. The aim of this case study was to analyse the visualisation processes that selected senior secondary school learners used to solve a set of ten algebraic problems.The research was conducted at a secondary school in the Erongo region of Namibia. This is the school where the researcher is teaching. The sample consisted of six selected learners, three from Grade 11 and three from Grade 12. The learners were purposefully selected to participate in this study based on their mathematics performance in class and their willingness to participate. The participants were video recorded as they worked through the ten items of an Algebraic Visualisation Tasks (AVT) worksheet. They were also interviewed about the visualisation processes they employed when solving each of the tasks. The AVT, the videos and the interviews were analysed with the aid of an adapted visualisation template. The findings of the study show that learners used visualisations in all their problem-solving processes. These visualisations were used for different purposes such as starting points, for illustrative purposes, as organizational tools and as simplification tools. Visualisations as starting points were used when the problem was wordy and had lengthy descriptions and explanations. Illustrative visualisations enabled learners to articulate in their own way mathematical notations, mathematical equations and expressions that they then used to solve the problem. Organizational pictures provided a useful structural framework for solving the problems.This research suggests that the selected participants indeed used visualisation processes to solve algebraic problems. It is thus important for teachers to harness this aid and make the most use of these visualisation processes when teaching Algebra.
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- Date Issued: 2017
Assessing MODIS evapotranspiration data for hydrological modelling in South Africa
- Authors: Mazibuko, Sbongiseni Christian
- Date: 2017
- Subjects: Evapotranspiration , Evapotranspiration -- Measurement , Hydrologic models , Hydrologic models -- South Africa , MODIS (Spectroradiometer)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/8009 , vital:21334
- Description: Evapotranspiration as a major component of the water balance has been identified as a key factor in hydrological modelling. Water management can be improved by means of increased use of reliable methods for estimating evapotranspiration. The limited availability of measured climate and discharge data sets, particularly in the developing world, restricts the reliability of hydrological models in these regions. Furthermore, rapid changes in hydrological systems with increasing development mean uncertainties in water resource estimation are growing. These changes are related to the modification of catchment hydrological processes with increasing human activity. Dealing with data uncertainty and quantifying the impacts of catchment activities are significant challenges that scientists in the field of hydrology face today. Uncertainties in hydrometeorological data are associated with poor observation networks that provide data at point scales which are not adequately representative of the inherent heterogeneity within catchment processes. Using uncertain data in model applications reduces the predictive power of hydrological models as well as the ability to validate the model outcomes. This study examines the potential of using remote sensing-based evapotranspiration data to reduce uncertainty in the climatic forcing data and constraining the output of a rainfall-runoff hydrological model. It is common to use fixed seasonally variable potential evapotranspiration (PET) instead of temporally varying PET data as inputs to standard rainfall-runoff models. Part of the reason is that there are relatively few stations available to measure a variety of meteorological input data needed to compute PET, as well as the apparent lack of sensitivity of rainfall-runoff models to different types of PET inputs. As hydrometeorological data become more readily available through the use of earth observation systems, it is important to determine whether rainfall-runoff models are sensitive to time-varying PET derived from these earth observations systems. Further potential includes the use of actual evapotranspiration (ETa) from this type of data to constrain model outputs and improve model realism. It is assumed that a better representation of evapotranspiration demands could improve the efficiency of models, and this study explores some of these issues. The study used evapotranspiration estimates (PET and ETa) from the MOD16 global product with one of the most widely used hydrological models in South Africa. The investigation included applying the Pitman model in a number of case study catchments located in different climatic regions of the country. The main objectives of the study included (i) the establishment of behavioural model parameter sets that generate acceptable hydrological response under both naturalised and present-day conditions, (ii) the use of time-varying PET estimates derived from MOD16 data to force the model, and (iii) the use of MOD16 ETa estimates to constrain model-simulated ETa. Before examining the use of different PET forcing data in the model, a two-step modelling approached was employed both a single-run and an uncertainty version of the Pitman model. During the first step (using a single-run version), available information on catchment physical properties and regionalised groundwater recharge together with model calibration principles were used to develop model functionality understanding and establish initial parameter sets. The outcomes from the first step were used to define uncertain parameter ranges for the use in the uncertainty version of the Pitman model (second step). Further, catchment water uses were quantified to ensure comparability with present-day flow conditions represented by the stream flow records. The effects of forcing the Pitman model with MOD16-based time-varying PET data inputs were evaluated using static and dynamic sensitivity analysis approaches. In the static approach, parameter sets calibrated using fixed seasonal distributions of PET data remain unchanged when forcing the model with other forms of PET, whereas in the dynamic method, the model is recalibrated with changing PET inputs. In both approaches, model sensitivity was assessed by comparing objective function statistics of reference flow simulations with those simulations incorporating changing PET data inputs. The use of the MOD16 ETa data to constrain model- simulated evapotranspiration losses was conducted by calibrating the parameters such that the simulated-ETa matched the evapotranspiration loss estimated from the MOD16 data. Despite issues around model equifinality and significant uncertainty within water use information, the Pitman model simulations were generally satisfactory and compared with observed stream flow data where available. The use of time-varying PET data does not improve the efficiency of the model when both static and dynamic sensitivity approaches are used. This was highly expected with the static approach where fixed model parameter sets do not account for the changes in evapotranspiration demands. However, with the dynamic approach, it was difficult to conclude why the model efficiency did not improve given the flexibility of the model to achieve appropriate parameter sets to different forms of PET. The study noted that the insensitivity of the model to changes in PET demands could be due to uncertainties in the model structure and MOD16 data. Attempts to constrain the model-simulated actual evapotranspiration with MOD16 ETa estimates were hampered by large errors in the MOD16 data and resulted in the non-closure of the catchment annual water balance, even when likely errors in the other components of the water balance were accounted for. There is still a great deal of work that needs to be done to reduce uncertainties associated with the use of earth observation data in hydrological modelling. This study has identified some of the specific gaps within the application of evapotranspiration data from earth observation information. While the MOD16 data applied with the Pitman model did not achieve improved simulations, the study has demonstrated the enormous potential of the data product in the future should the identified uncertainties be resolved. Lastly, the investigation highlighted some of the possible model structural uncertainties specifically associated with the simplified soil-moisture accounting routines within the model. It is possible that amending the model structure through investigating the dynamics of the relationship between soil moisture and evapotranspiration losses would assist in the improved utilisation of earth observation products related to the MOD16 ET data.
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- Date Issued: 2017
Transgression and transcultural blending: reading the work of Adelaide Fassinou
- Authors: Ishaya, Nandi Salome
- Date: 2017
- Subjects: Fassinou, Adélaïde, 1955- -- Criticism and interpretation , Fassinou, Adélaïde, 1955- -- Jeté en pâture , Fassinou, Adélaïde, 1955- -- Modukpè, le rêve brisé. , African literature (French) -- History and criticism
- Language: French , English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/7500 , vital:21266
- Description: In Adelaide Fassinou’s novel Jete en pature (“Thrown to the lions/wolves”), the female character Fifame declares that “novels/books have sides that one is attached to. The lives of people roll pass our eyes. Some stories resemble ours” (JP, 147). Fassinou herself says: By reading this book dear friend, the stories of all these women who lived nowhere except in my imagination, may be like yours. But the fiction in which they themselves moved makes it so close and we share in their tragedy (MRB, 7). The above comments reflect the idea of sociocriticism which opines that a literary work could be a representation of the society of its author. This goes to say that real events can feed literary imagination more and more. Also, Fifame continues that “a book/novel is a path marked by steps, falls, and races towards a future that is bright or a bleak” (JP, 147). The verbs which connote ‘bright’ and ‘bleak’ in this comment unveil the writing idea/conception which Fassinou adheres to. “Bright” in our opinion could connote the gains of cross cultural blending, the precise outcome/result of modernity. “Bleak” on the other hand could refer to the violation of certain cultural values and or better still to transgressive attitudes in a society that is in the process of radical transformation. As such, transgression and cross cultural blending are the focal points of our discussion in this research. We have chosen to analyse some literary works of Adelaide Fassinou, a beninoise who came into the literary scene at the threshold of the new millennium, in 2000. It could then be said that Fassinou belongs to a new generation of African writers, the writers of the new millennium. The title of her first novel is revealing. Its title, Modukpe, le reve brise could imply that man always has a dream but in the course of time, this dream could be broken due to one factor or the other. In Fassinou, the lack of the realization of dreams could be the result of our vision of the world where new ideas oppose tradition to the extent that modernity is seen simply as a transgression of the laws of tradition. Admittedly, it is transgression in the fictional novel, a transgression against tradition and or nature because “nature has its laws”. The life experiences of man especially the female gender, “A whole lifetime is not enough to speak about it” And the story of being “Thrown to the lions” is one of such experiences. Reading Fassinou’s work, one vi could note that she presents enough social problems which reflect the notion of transgression. As a result, for the woman to liberate herself, the author who represents the woman, resorts to writing “Poems of love and brambles” of “Her exiles and her loves” because it is needful to speak so as to feel better within oneself. This action of breaking the silence by the woman constitutes in itself a transgression because, in the culture of the author, the woman should be reduced to silence. Fassinou has the urge to show that cruelty in the home, inflexible will, excessive masculinity and insensibility could lead to rebellion, dissatisfaction and violence which could affect the whole society. In view of this, to love one child above the others could compromise family cohesion. It is in this regard that suicide formed part of the theme of this research. This could represent the image of national violence provoked by tribalism and geopolitics which could be noticed in many countries on the African continent. For most critics, the transgression of traditional values is due to cultural blending because this blending is seen as the evolution of the society and the culture which represent a society that finds itself at the cross roads. Transgression in Fassinou’s works is the demystification of certain traditional beliefs. The transgression of some characters leads to bitter and traumatic experiences. Be that as it may, the author recommends/advocates, through her writing, a way of escape: hope. It shows through the representations made by the author that determination to overcome the challenges faced and the decision to put a cross on past bitter experiences are strong indications for individual transformation which would lead to the desired transformation and development of Africa. Transgression and cultural blending in the works of Fassinou are not limited to thematic study; it is also about the transgression of standard language codes and the mixing of languages. The second part of this thesis is devoted to the stylistic study of Fassinou’s works. As such, we are going to equally study formal aspects of Fassinou’s writing as a symbol of transgression and transcultural blending. , Dans le roman Jete en pature d’Adelaide Fassinou, le personnage feminin, Fifame, declare que « les livres ont un cote attachant. Ils deroulent sous nos regards la vie de personnes qui nous semblent si proches que nous nous identifions a elles. Certaines histoires ressemblent a la notre » (JP, 147). Fassinou elle-meme dit : En lisant ce livre, chere amie, tu feras egalement tienne I ’histoire de toutes ces femmes qui n ’ont vecu nulle part, sauf dans mon imagination. Mais la fiction dans laquelle elles se meuvent nous les rend encore plus proches st nous faitpartager leurs drames (MRB, 7). Ces propos refletent l’idee de la sociocritique qui indique qu’une reuvre litteraire pourrait etre une representation de la societe de son auteur(e). Ceci revient a dire que des evenements reels peuvent alimenter de plus en plus l’imagination litteraire. Aussi, poursuit-elle, « un livre est un chemin jalonne de marches, de chutes et de courses vers des lendemains qui chantent ou qui dechantent » (JP, 147). Les verbes « chanter » et « dechanter » dans ces propos devoilent la conception de l’ecriture a laquelle Fassinou adhere. « Chanter », a notre avis, pourrait denoter les gains des croisements des cultures, le resultat meme du modernisme. « Dechanter » pour sa part pourrait renvoyer a la violation de certaines valeurs traditionnelles et ou mieux encore aux attitudes transgressives dans une societe en pleine mutation. Ainsi donc la transgression et le metissage culturel constituent le point central de la discussion de cette recherche. Nous avons choisi d’analyser quelques reuvres litteraires d’Adelaide Fassinou, une ecrivaine beninoise qui est entree sur la scene litteraire au seuil du nouveau millenaire, en 2000. Par ce fait, on dirait que Fassinou appartient a une nouvelle generation d’ecrivains : les ecrivains du nouveau millenaire. Le titre du premier roman de Fassinou est revelateur. Il s’institule Modukpe, le reve brise, qui implique que l’homme a toujours un reve mais au cours du temps, ce reve pourrait etre brise. Chez Fassinou, ce manque de materialisation de reves serait le resultat de notre vision du monde ou les conceptions nouvelles rivalisent avec la tradition au point que la modernite soit simplement vue comme une transgression de lois de la tradition. C’est certes la transgression dans l’univers romanesque, une transgression contre la tradition et / ou la nature car « la nature a ses lois ». Et les experiences vecues par l’homme et surtout par la femme, Toute une vie ne viii suffirait pas pour en Parler. Et l’histoire d’etre Jete en pature est l’une de ses experiences. En lisant l’reuvre de Fassinou, on peut constater qu’elle presente assez de problemes sociaux qui renvoient a la notion de la transgression. Il en resulte que, pour se liberer, l’auteure qui represente la femme, recourt a ecrire des Poemes d ’amour et de ronces, de [S]es exiles, [s]es amours car il faut parler pour se sentir bien en soi-meme. Cette action de briser le silence par la femme constitue aussi en elle, une transgression car dans la tradition de l’auteure, la femme devrait etre reduite au silence. Fassinou a besoin de montrer que la cruaute au foyer, la volonte inflexible, la masculinite excessive et l’insensibilite conduisent a la revolte, au mecontentement et a la violence pouvant affecter toute la societe. Eu egard a cela, aimer un enfant au-dessus des autres compromettrait la cohesion familiale. C’est ainsi que le sujet du suicide fait partie de cette recherche. Ceci pourrait representer l’image de la violence nationale provoquee par le tribalisme et la geopolitique qu’on pourrait remarquer dans plusieurs pays sur le continent africain. Pour la plupart des critiques, la transgression des valeurs traditionnelles est due au metissage culturel car ce metissage est vu comme une evolution de la societe et de la culture qui represente une societe qui se trouve a la croisee des chemins. La transgression dans l’reuvre de Fassinou est la demystification de certaines croyances traditionnelles. La transgression de certains personnages conduit aux experiences ameres et traumatisantes. Quoi qu’il en soit, l’auteure preconise toujours, au moyen de son ecriture, une voie de sortie : l’espoir. Il transparait des representations que fait l’auteure que la determination pour surmonter les defis et la decision de mettre une croix sur les experiences ameres du passe sont des indications fortes pour la transformation individuelle qui amenera a la transformation et au developpement tant desire de l’Afrique. La transgression et le metissage culturel dans l’reuvre de Fassinou ne se limitent pas aux etudes thematiques ; il s’agit egalement de la transgression du code langagier standard et du melange des langues. La deuxieme partie de cette these est consacree a une etude stylistique de l’reuvre de Fassinou. Pour cela, nous avons etudie egalement les aspects des aspects formels de l’ecriture de Fassinou comme symbole de la transgression et du metissage culturel.
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- Date Issued: 2017