"What is cinema? The emergent digital era poses this question in a new and interesting way because for the first time in the history of film theory the photographic processes is challenged as the basis of cinematic representation. If the discipline of cinema studies is anchored to a specific material object a real conundrum emerges with the arrival of digital technologies as a dominant aesthetic and social force" (D.N. Rodowick 2007: 9). Over the past twenty-five years or more there has been a paradigm shift occurring in the manner in which moving images are conceived, acquired, produced, disseminated and consumed. This transformation of the modus operandi of production can be attributed to the overwhelming expansion and rapid advance of digital technologies. Through both critical reflection and creative practice this thesis will explore the extent to which there might be a discontinuity between analogue and digital cinematography; whether cinema itself and the basis of photographic representation have been changed, as Rodowick infers. It will draw on debates of realism, the index, and of the medium in relation to the seminal theories of new media. The thesis will introduce the term Digital Fluidity. This is the central concept that has emerged out of my research that describes how technologies utilised in production and post-production function together to enable a fluid process or mode of filmmaking, based on a logic of hybridity and technological convergence. Digital Fluidity engages with two key arguments in new media theory, namely that of ‘re-mediation’ (Bolter and Grusin, 2000), and the ‘computerisation of culture’ (Manovich, 2001). The thesis comprises of a 30 000 word dissertation and a portfolio of practical work of three films. Firstly there are two documentary shorts Grasp the Words Which Sing (2010), and Picnic Pilgrimage (2012), which deal with themes such as the perception of art in the case of the former and the mobility of both the camera and the subject in the latter. In the documentary productions the reflective focus is concentrated on the digital camera as capture device, re-appropriation of technology, and continuity with analogue production techniques. The films are produced on a modified DSLR camera with 35mm lenses and demonstrate a progression in visual style from a static camera in the case of the first film to a necessarily more mobile camera in the second and third. A longer dramatic production Not For Human Consumption (2013) is a tragic love story that explores the emotive social issue of legal high substance misuse. This film uses improvisation and experimental camera systems as well as some conventions that hold their lineage in the silent era, such as the long take and frontal framing. Here the theoretical analysis explores the integration of analogue and digital techniques and equipment by looking at the processes involved and relating these practices with the concept of Digital Fluidity. The improvised narrative was created as the film was in production – a choice that was facilitated largely by the decision to shoot digitally. The three films, although very different, are related by the connection between the processes of filmmaking undergone in each case and the thesis’ core definition of Digital Fluidity. The central research question poised within this thesis will therefore be: ‘Do digital technologies offer the filmmaker enhanced opportunity for creating new cinematic language and a more fluid mode of production than previous forms?

Biostimulation is the use of in-situ microorganisms and added reagents in order to biosequester, precipitate, or absorb contaminants from contaminated groundwater and sediment. To test the effectiveness of this remediation approach at a particular site, small scale experiments, such as miscible-displacement, batch, or microcosm experiments, should be performed before a large-scale in-situ biosequestration electron donor injection. In this study, electron donor solutions containing contaminated groundwater and ethanol, acetate, benzoate, or glucose were injected into aquifer sediments collected from a UMTRCA Title 1 Site in Monument Valley, AZ. These experiments showed that ethanol, acetate, and glucose were effective electron donors for the stimulation of microbial activity in order to sequester uranium and reduce nitrate and sulfate concentrations. Conversely, benzoate was not effective at sequestering or reducing the contaminants. After electron-donor deficient groundwater was injected into the columns, a rebound of nitrate, sulfate, and uranium concentrations was observed. Due to this rebound, it was inferred that the mechanism of sequestration of uranium and hence reduction of nitrate and sulfate was due to the creation of reducing conditions via microbial activity. The insoluble reduced uranium was hypothesized to have precipitated or adsorbed to surrounding sediments. Incoming groundwater contained dissolved oxygen and therefore oxidized the reduced contaminants, consequently returning them into solution. It was hypothesized that a similar rebound would occur if ethanol, acetate, or glucose were to be injected in-situ due to sustained groundwater flow through the aquifer sediments on site.

In metal machining processes, the regulation of heat generation and lubrication at the contact point are achieved by application of a fluid referred to as metalworking fluid (MWF). This has the combined features of the cooling properties of water and lubricity of oil. MWFs inevitably become operationally exhausted with age and intensive use, which leads to compromised properties, thereby necessitating their safe disposal. Disposal of this waste through a biological route is an increasingly attractive option, since it is effective with relatively low energy demands when compared to current physical and chemical options. However, biological treatment is challenging since MWF are chemically complex, including the addition of toxic biocides which are added specifically to retard microbial deterioration whilst the fluids are operational. This makes bacterial treatment exceptionally challenging and has stimulated the search and need to assess technologies which complement biological treatment. In this study the remediation, specifically of the recalcitrant component of a semi-synthetic MWF, employing a novel hybrid treatment approach consisting of both bacteriological and chemical treatment, was investigated. Three chemical pre-treatment methods (Fenton’s oxidation, nano-zerovalent iron (nZVI) oxidation and ozonation) of the recalcitrant components followed by bacterial degradation were examined. The synergistic interaction of Fenton’s-biological oxidation and nZVI-biodegradation led to an overall COD reduction of 92% and 95.5% respectively, whereas pre-treatment with ozone reduced the total pollution load by 70% after a post-biological step. An enhancement in biodegradability was observed after each of the chemical treatments, thus facilitating the overall treatment process. The findings from this study established that the use of non-pathogenic microorganisms to remediate organic materials present in MWF wastewater is a favourable alternative to energy demanding physical and chemical treatment options. However, optimal performance of this biological process may require chemical enhancement, particularly for those components that are resistant to biological transformation.

The purpose of this study was to determine if students who participated in language arts remediation which was infused with critical thinking activities and metacognition would make greater gains in skills and achievement than those students who were remediated with a regular language arts curriculum. The population for this study was a group of at risk students who were fourteen to sixteen years old and who were participants in the 1987 summer Youth Opportunities Unlimited project at the University of North Texas. Their progress was measured with California Achievement Test and Iowa Test of Basic Skills pretests and posttests. The organization of the study includes a statement of the problem, a review of the literature, the methods and procedures used to collect the data, the analysis of data, and a summary of the findings, conclusions, educational implications, and recommendations tor additional research. Data from the eight hypotheses were treated with an analysis of covariance. The analysis of data revealed the following: 1. The infusion of critical thinking activities and metacognition did not improve students' skills or achievement in the following areas: spelling, capitalization, and punctuation. 2. The infusion of critical thinking activities and metacognition did not improve students' skills in usage and expression as tested with items focusing on subject/verb agreement, verb tense, pronoun case, and pronoun degree. 3. The critical thinking activities and metacognition made a significant difference in students' achievement in language expression. The education implications are that lessons designed with mechanics objectives such as capitalization and punctuation should include independent practice. However, lessons designed with objectives focusing on usage, subject/verb agreement, double negatives, verb tense, and pronoun case and degree should include critical thinking activities and metacognition.

Factory legacy pollutants are an increasing concern for waterways as old infrastructure deteriorates and contaminates nearby environments. The Fisherville Mill in Grafton, Massachusetts, USA exemplifies this problem since it has now fallen into disrepair and is leaking Bunker C crude oil into the adjoining Blackstone River, a third order stream. Our research examines how effectively an ecologically engineered system (EES), consisting of anaerobic bacteria environments, fungal microcosms, and aquatic plant environments, can break down petroleum hydrocarbons, specifically aliphatic and polycyclic aromatic hydrocarbons (PAH), in this river environment. Our testing protocol involved taking water samples before and after each filtration stage monthly from June through October 2012. Water samples were analyzed at the Brown University Superfund Research Lab using mass spectrometry to determine aliphatic and PAH concentrations. Post-treatment aliphatic oil concentrations were significantly different from baseline concentrations (p=0.005), with an average reduction of 95.2%. Post-treatment PAH concentrations were also significantly different from baseline concentrations (p=0.001), with an average reduction of 91%. We conclude that this EES provided effective treatment for Bunker C crude oil, even though some filtration stages did not achieve their intended objectives. This type of filtration arrangement might be scaled up for use in larger remediation efforts regarding Bunker C crude oil.

This study explored the concept of student remediation in counseling graduate programs by examining the behavioral indicators associated with student remediation, the terminology used to discuss student remediation, and remedial interventions and their effectiveness. Members of the Association for Counselor Education and Supervision (ACES) were electronically surveyed using a researcher-designed instrument, the Counseling Graduate Student Remediation Questionnaire. A total of 607 individuals participated in the study for a response rate of 28.8%. The results of this study indicated that the overall five behavioral indicators considered by participants as needing remediation were the following: receptivity to feedback; basic counseling skills; boundaries with clients, supervisors, and/or colleagues; openness to self-examination; and advanced counseling skills. Five factors were identified within the behavioral indicators based on which can be remediated: Factor I, Personal Competencies; Factor II, Professionalism; Factor III, Personal Challenges; Factor IV, Honesty; and Factor V, Clinical Competencies. Significant group differences were found between counselor educators' and doctoral students' perceptions of what needs remediation with counseling graduate students, as well as what can be remediated with students. Significant group differences also were present between administrative faculty and non-administrative faculty on perceptions of what needs remediation with students. The overall three most preferred terms by participants used to discuss students in remediation included: challenging, problems with professional competence, and problematic. For remedial interventions, participants perceived that increased supervision was often effective as an intervention and that referring or recommending to personal counseling was occasionally effective. The results of this study seemed indicative of a broadening perspective regarding the topic of remediation, with perceptions shifting toward a positive framework rather than the more pejorative historical approaches. Overall, the conclusion from this study was that student remediation is currently developing within the field as a distinct concept with many specific associated behavioral indicators, terminology, and interventions.

Thesis is submitted in partial fulfilment for the degree of Master of Architecture (Professional) to the Faculty of Engineering and the Built Environment, School of Architecture and Planning at the University of the Witwatersrand, Johannesburg, 2017 / The memories associated with mining are vastly contrasting; ranging from nostalgic recollections of the fortune on which Johannesburg was built to the torturous conditions the miners had to endure both above and below the surface. The essay by the author entitled “Memory retention and cessation in the historical and present context of South Africa and abroad” aims to engage with critically, and explore, the field of memory in relation to mining and broader issues. It is of great importance when establishing a heritage project that the people who engage with it must be able to do so without causing distress or emotional anguish. Can a contextually relevant space be created for the housing and display of such memories? This research report views remediation through a holistic lens that is an approach to the project in its entirety. Remediation is viewed as an approach to solving the fractured nature of Benoni, separated by mining and Apartheid planning, creating ‘buffer zones’ between previously racially orientated areas. The site is a previous ‘buffer zone’ and has not changed its function since it was constructed in 1888. The toxic, disused land offers an opportunity to reclaim what industry has taken away from ‘nature’. Can this ‘buffer zone’ be activated to connect the segregated suburbs of Benoni further? Remediation will also be used as a vehicle for the regeneration of the site, with the aim to return it to a similar ecological state as it was before the mining industry began to alter it. The site has been scarred by the mining industry for over 128 years, polluting both the surface and the sub-surface environment. Can the effects of the temporary environmental degradation be neutralised? The reprocessing of the mine dump has initiated the remediation process, removing around 40 million tonnes of waste (“Transvaal Has Largest Dam In the World” 1950, Vol 56, No. 15 731) from the site, re-mining it, and sending the waste to selected dump sites across the Rand. The Remediation of Acid Mine Drainage (AMD) will reduce the associated noxious effects on the local biosphere, induce a ripple effect further downstream the Blekboskpruit and further on towards the Vaal Dam, where we obtain our drinking water. This example of passive AMD remediation aims to stand as a watershed project that may be adopted and adapted at other sites with similar needs. Is the use of a low-tech, passive wetland system appropriate for AMD remediation and the site? This project aims to be a cultural precinct to objectively display the history of mining in Johannesburg. It does so while being a functioning centre for AMD remediation, in pursuit of solutions for the damage that our mining legacy has had on the landscape and the environment. The Urban Mining facility seeks to create a flagship electronic waste (e-waste) recycling centre that will not only have a positive impact on the local environment but reduce the amount of e-waste being transported illegally to developing countries around the world. Keywords: Acid Mine Drainage, Urban Mining, Remediation, Mining Museum, Benoni / GR2017

Thesis is submitted in partial fulfilment for the degree of Master of Architecture to the Faculty of Engineering and the Built Environment, School of Architecture and Planning at the University of the Witwatersrand, Johannesburg, 2018 / This thesis aims to understand the role that Independent Power Producers (IPP’s) can play in the renewal of architectural firms in creating new realities and how these firms can once again become drivers of social change. Kathu (Northern Cape), a steel mining town, is facing the reality that it will have to survive without a mining house and the community funding that results from its operations soon. There are three IPP’s within a 50km radius of Kathu. Under the current funding structure all 3 IPP’s have to contribute to socio-economic development (SED) and enterprise development (ED) within Kathu. According to the Independent Power Producers Procurement Programme (IPPP’s), IPP’s are required to provide 1% of gross turnover to community funds for SED and ED development programmes. Where this funding differs from funding obtained from mining houses is that renewable energy is effectively limitless. Despite IPP’s having a projected lifespan of 20 years they will continue to be redeveloped and upgraded. These upgrades will allow for longevity of revenue, which in turn allows for sustained support for the communities surrounding them. Funding structures that are being used to disseminate mining house funds to the communities are suffering from governance issues. This means that the communities do not receive the most effective or necessary forms of development. Through a new typology of architectural practice, the way these funds are managed and utilised can create better environments for those communities. This new typology of architectural firm must move away from the corporate and profit driven nature of modern architectural firms and more towards a ‘Rural Studio’ model. This is where the primary focus is on the community and how to best serve the needs of the people. In doing so SED projects would be more effective in bringing about social change, creating new realities for communities and drivers of sustainability in post-mining towns in South Africa. / XL2019

A research report submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, Johannesburg, in partial fulfilment of the requirements for the degree of Master of Science in Engineering, Johannesburg 2017 / This research sought to identify the key success factors associated with industrial brownfields site redevelopment projects in urban areas of South Africa. Nine such success factors were identified from international and local literature. Through documentary research, three brownfield case studies in Johannesburg were investigated. These included the Newtown Cultural Precinct, the Egoli Gas site and the AECI Modderfontein site. Commonalities includes location within the urban edge, original industrial land use, and the redevelopment intent of the landowners. Aspects differing among the sites include distance from the inner city, size, the certainty of contamination and redevelopment success. Based on the findings of the three case studies, the nine success factors were refined. The factors are no or low contamination, brownfields policy maturity, certainty regarding liability for remediation, risk-based land use options, favourable market conditions, quick funding access with rapid statutory approvals, readily available municipal services and transport infrastructure, and strong political and community support. The case study findings provide indications towards generalisation for success factors that may apply to future brownfields projects. Further research required includes a larger database of brownfields redevelopment case studies to be developed for South African, in order to further test associated success factors. / XL2018

[pt] O uso do calor como meio alternativo para a remediação de áreas contaminadas por compostos orgânicos - hidrocarbonetos derivados de petróleo e policíclicos aromáticos, organoclorados, pesticidas, dentre outros - tem se mostrado competitivo quando comparado a outras soluções, principalmente levando-se em consideração questões práticas como a eficiência dos seus resultados e o seu tempo de execução. Seguindo uma linha de pesquisa do Núcleo de Geotecnia Ambiental da PUC-Rio, esta dissertação se propõe a aperfeiçoar o sistema de dessorção térmica in situ a partir do desenvolvimento de um novo bastonete térmico e de um sistema de medição de temperaturas in situ. O seu escopo envolveu, principalmente, a avaliação do seu desempenho quando submetido às condições naturais de campo a partir de experimentos realizados em dois locais diferentes: nas dependências da EMBRAPA Solos, no Jardim Botânico, e na área externa do Laboratório de Geotecnia e Meio Ambiente da PUC-Rio. No primeiro caso, por ser um solo areno-argiloso, a temperatura se manteve mais concentrada em pontos mais próximos ao bastonete. Já no segundo, representado por um solo areno- siltoso, a temperatura chegou a pontos mais distantes com maior intensidade. Não houve modificação estrutural significativa em ambos os solos. Nos dois casos, a eficiência do sistema foi extremamente dificultada pelos baixos graus de saturação e teor de umidade, o que fez com que o calor aplicado se perdesse com maior facilidade. Após algumas modificações em seu projeto original, o bastonete térmico desenvolvido se comportou bem, principalmente no último ensaio, que durou 24 dias. Paralelamente, em laboratório, foram avaliados o comportamento da microbiota após a aplicação de calor no solo e a possibilidade de aptidão deste meio à existência de novos seres vivos após a injeção de água e nutrientes inorgânicos. Verificou-se uma recuperação e estabilização destes indivíduos em aproximadamente 03 semanas. Observou-se ainda a recuperação parcial da atividade metabólica; no entanto foi visto que a sua taxa decresce com o tempo, motivada provavelmente pela falta de matéria orgânica no solo. / [en] The use of thermal processes in order to remediate contaminated sites has been shown a great deal of promise, especially when time and effectiveness are considered. The present work describes the development of a new in situ device that simultaneously applies heat and delivers compressed air into the porous media. Additionally, a new set of instruments were also designed and built in order to monitor temperature and to extract vapor from the vadose zone. Tests performed at EMBRAPA Solos site and PUC-Rio Campus showed a good performance of the pieces of equipment developed. In addition, microbiological tests performed at the Geotechnical and Environmental Lab showed that is possible to recover the natural microbiota after prolonged exposure to temperatures above 400 ºC. Results have shown a recovery and stabilization of the population in about 3 weeks. However, it was also observed that metabolic activity was not fully recovered, in part due the lack of nutrients and organic matter in the porous media.