In North Texas, the Barnett Shale underlies large areas of the Dallas-Fort Worth Metroplex (DFW), which magnifies debates about the externalities of shale gas development (SGD). Continued demand for natural gas and expansive urbanization in DFW will cause more people to come in contact with drilling rigs, gas transport, and other urban shale gas landscapes. Thousands of gas wells within the DFW region occupy a large, yet scattered land surface area. DFW city planners, elected officials, and other stakeholders must deal with current and future urban growth and the surface impacts that are associated with gas development. This research examines how shale gas landscapes affect urban land uses, landscapes, and patterns of development in DFW. The study focuses on multiple fast growing DFW municipalities that also have high numbers of gas well pad sites. This study asks what are the spatial characteristics of gas well production sites in DFW and how do these sites vary across the region; how do gas well production sites affect urban growth and development; and how are city governments and surface developers responding to gas well production sites, and what are the dominant themes of contestation arising around gas well production sites and suburban growth?

Denna uppsats utgår från målningen Vir Heroicus Sublimis från 1950 av den abstrakta expressionisten Barnett Newman och installationen One and Three Chairs från 1965 av konceptkonstnären Joseph Kousuth som en undersökande metod för att förstå intentionen med mitt eget verk Sitta från kandidatutställningen Lampa, Blomma på Konstfack hösten 2020. Arbetet med uppsatsen har haft en undersökande form från början till slut utifrån fria associationer mellan Sitta och de konsthistoriska verken som ingång.

Municipalities protect human health and environmental resources from impacts of urban natural gas drilling through setback distances; the regulation of distances between well sites and residences, freshwater wells, and other protected uses. Setback distances have increased over time, having the potential to alter the amount and geographical distribution of drillable land within a municipality, thereby having implications for future land use planning and increasing the potential for future incompatible land uses. This study geographically applies a range of setback distances to protected uses and freshwater wells in the city limits of Denton, Texas to investigate the effect on the amount of land remaining for future gas well development and production. Denton lies on the edge of a productive region of the Barnett Shale geological formation, coinciding with a large concentration of drillable land in the southwestern region of the study area. This region will have the greatest potential for impacts to future municipal development and land use planning as a result of future gas well development and higher setback standards. Given the relatively high acreage of drillable land in industrially zoned subcategory IC-G and the concern regarding gas well drilling in more populated areas, future drilling in IC-G, specifically in IC-G land cover classes mowed/grazed/agriculture and herbaceous, would have the least impact on residential uses and tree cover, as well as decreasing the potential for future incompatible land uses.

This thesis explores the domestic designs produced in Canterbury, New Zealand, by the architectural firm of Collins and Harman between 1883 and 1927. Architects John James Collins (1855 – 1933) and Richard Dacre Harman (1859 – 1927) were partners in the firm founded in Christchurch by William Barnett Armson (1833 – 1883) in 1870. Like many New Zealand architects practicing at the turn of twentieth century, Collins and Harman worked amidst a climate of major social and economic transformation, yet they managed to navigate these transitions with their personal connections and respected positions within the local architectural profession. From Collins and Harman’s surviving architectural drawings and office records, the firm’s ability to design residences in accordance with its clients’ wishes is evaluated. The methods with which they carried out designs, transacted business and secured future clients are also considered. The social standing of the firm’s clientele is emphasised to highlight the tight-knit nature of architectural patronage in Canterbury during this period. In order to assess the firm’s contribution to the development of domestic architecture in New Zealand, the local architectural profession, the firm’s reputation, and the effects that its built designs had on its clients and the local community are also investigated. While their major public and commercial designs are included in general surveys of New Zealand architecture, Collins and Harman tend to be overlooked as domestic architects in comparison with better-known contemporaries such as Samuel Hurst Seager and Cecil Wood. In catering to the requirements of a diverse clientele, the firm adopted varied approaches in its designs, which illustrate a more complex evolution than the linear progression usually found in standard architectural historical methodologies. Divided chronologically into four distinct periods, the thesis focuses on key commissions to chart the firm’s development over forty-four years within the context of the evolution of domestic architecture in Canterbury. The diversity in its domestic work engendered by the firm’s professionalism demonstrates that Collins and Harman made a substantial and vital contribution in the development of domestic architecture in Canterbury.

The Barnett shale basin, the largest onshore gas field in the state of Texas, mainly produces natural gas. The basin’s oil and gas productions have dramatically increased over the past two decades with the enhancement via shale fracturing (fracking) technology. However, recent studies suggest that air emissions from shale fracking have significantly contributed to the growing air pollution problem in North Texas. In this study, air emissions from the Barnett shale basin during the production phase of the oil and gas activities (once the product is collected from the wells) are quantified. Oil and gas production data were acquired from the Texas Railroad Commission for the baseline years of 2010 through 2013. Methodology from prior studies on shale basins approved by the Texas Commission on Environmental Quality was employed in this study and the emission inventories from the production phase sources were quantified. Accordingly, the counties with the most gas operations in the basin, Tarrant, Johnson, Denton and Wise, were found to be the highest emitters of air pollutants. Tarrant County was responsible for the highest emitted NOx (42,566 tons) and CO (17,698 tons) in the basin, while Montague County released the maximum VOC emissions (87,601 tons) during the study period. Amongst the concerned emitted pollutants, VOC was the largest emitted pollutant during the study period (417,804 tons), followed by NOx (126,691 tons) and CO (47,884 tons). Significant Sources of air emissions include: storage tanks, wellhead compressor engines, and pneumatic devices. Storage tanks and pneumatic devices contributed to about 62% and 28% of the total VOC emissions, respectively. Whereas, wellhead compressor engines are primarily responsible for about 97% of the total NOx emissions. Finally, in Tarrant, Wise and Denton counties, the emissions increased during the study period due to increase in the oil and gas production, while Johnson County’s emission contribution declined throughout the study period.

The Emma Lake Artists’ Workshops from the 1950s to the 1970s were a series of professional workshops held in northern Saskatchewan, under the auspices of the University of Saskatchewan and Regina College, for the creation and advancement of a dynamic arts culture in the province and as a way for the individual artists there to overcome feelings of isolation from the Canadian cultural hubs. Throughout the course of the Workshops provincial and federal attitudes, and cultural policies and perspectives on cultural nation building exerted an overarching influence in the shaping of the Workshops. The Workshops drew the attention and support of many established celebrity U.S. artists and it is due to their presence and influence at the Workshops that it is possible to examine the provincial and national response to perceived U.S. cultural imperialism. The founding and maturity of the Workshops is a case study of the ways in which the politics of Canadian nationalism and the effects of U.S. cultural imperialism in the late nineteenth and early twentieth centuries interacted to impact the growth and development of art communities across Canada. The Workshops serve as an example of the effects, on a regional art movement, of Canada’s relationship with the United States, and Canadian response to the perceived threat of cultural imperialism from the U.S. Because the Workshops were a microcosm of cultural production, involving artists who, aside from their participation at Emma Lake, were often fairly isolated from the ebb and flow of art currents inherent to larger cultural centers, the Workshops are also an important case study of the effects of national and provincial policy on the regional arts. The Workshops’ history reveals that ideas of nationalism, regionalism and continentalism can come together to have a profound and unique effect on the development of an art community. / Thesis (Master, Art History) -- Queen's University, 2011-12-20 17:29:24.88

Thesis (MA)--Stellenbosch University, 2012. / ENGLISH ABSTRACT: This thesis seeks to provide a critical discussion of the contributions of the African Union towards the potential development of an African security community since its inception in 2002. Utilising Security Community Theory, and the framework for the study of security communities developed by Adler & Barnett (1998) it commences with an interrogation of the AU. This interrogation is arranged along the three tiers of the framework. The first tier is the precipitating conditions, which cause states to orient themselves in each other’s direction and desire to coordinate their relations. The second tier investigates the factors conducive to the development of mutual trust and collective identity. The third, and final, tier identifies the necessary conditions of dependable expectations of peaceful change. The study goes on and introduces three African case studies, which illustrate the contributions of the African Union towards the potential development of an African security community. The case studies are the African Union mission in Burundi, the African Union mission in Sudan, and the recent intervention of the African Union in the post-election crisis in Côte d'Ivoire. All three case studies were able to provide ample evidence to illustrate the AU’s contributions. The study concludes with two major findings. Firstly, this study is able to illustrate that the AU has made significant contributions towards the development of peace and security in Africa. Secondly, that the AU has made significant contributions at all three tiers of the framework, and therefore major contributions to the potential development of an African security community. However, the AU is still in its embryonic phase, and any prediction concerning the existence, or potential existence of an African security community would be premature. Even though there are ostensibly, positive developments in the area of continental peace and security this study is able to illustrate several remaining challenges to further contributions by the AU. The first is a lack of resources. The AU is heavily dependent on the contributions of its member states, and a number of members persistently fail to meet their contributions to the organization. A second challenge is the loosely defined relationship with the UN (and other external partners). It is crucial that a constructive relationship be established, if not, differences might antagonise the two organisations and negatively affect any future contributions of the AU towards the development of an African security community. Finally, the role of core states, most notably regional hegemons such as South Africa and Nigeria will remain important for stabilizing and encouraging the further development of an African security community. / AFRIKAANSE OPSOMMING: Hierdie tesis poog om n kritiese bespreking te bied van die bydra wat die Afrika Unie na die potensiele ontwikkeling van n Afrika sekuriteits gemeenskap gemaak het sedert sy intrede in 2002. Deur gebruik te maak van Sekuriteits Gemeeenskap Teorie, en die raamwerk vir die studie van sekuriteits gemeenskappe deur Adler & Barnett (1998) begin die studie met n direkte ondersoek van die AU. Hierdie ondersoek vind plaas volgens die drie vlakke van die raamwerk. Die eerste vlak is die kondisies wat veroorsaak dat state hulself na mekaar orienteer, en n wil ontwikkel om hulle sake te koordineer. Die tweede vlak ondersoek die faktore vir die ontwikkeling van wedersydse vertroue en gesamentlike identiteit. Die derde, en finale, vlak identifiseer die nodige kondisies van afhanklike verwagtinge vir vreedsame verandering. Die studie gaan voort met drie Afrika geval studies, wat die bydra van die AU na die potensiele ontwikkeling van n Afrika sekuriteits gemeenskap illustreer. Die geval studies sluit in die Afrika missie in Burundi, die Afrika missie in Sudan, en die onlangse intervensie deur die AU in die na-eleksie krisis in Côte d'Ivoire. Al drie geval studies verskaf wye getuienis wat die bydra van die AU illustreer. Die studie sluit af met twee hoof bevindings. Eerstens, kon hierdie studie illustreer dat die AU betekenisvolle bydraes na die ontwikkeling van vrede en sekuriteit in Afrika gemaak het. Tweedens, dat die AU betekenisvolle bydraes op al drie vlakke van die raamwerk gemaak het, en daarom ook mondige bydraes tot die potensiele ontwikkeling van n Afrika sekuriteits gemeenskap gemaak het. Nogtans, is die AU self nog in n onvolwasse stadium, en enige voorspelling in verband met die bestaan, of oor die potensiele bestaan van n Afrika sekuriteits gemeenskap is voortydig. Al is daar opmerkilike positiewe ontwikkelinge in die area van kontinentale vrede en sekuriteit, kan hierdie studie steeds verskeie uitdagings identifiseer wat verdere bydraes deur die AU kan hinder. Die eerste uitdaging is n tekort aan bevondsing. Die AU is hoogs afhanklik op die bydrae van sy lidmaat state, maar n paar lede mis aanhoudend hulle bydraes tot die orginasasie. n Tweede uitdaging is die ongedefineerde verhouding tussen die AU en die VN (en ander eksterne vennote). Dit is belangrik dat n konstruktiewe verhouding in werk gestel word, indien nie, kan verskille die twee organisasies van mekaar dryf en enige toekomstige bydraes van die AU na die potensiele ontwikkeling van n Afrika sekuriteits kompleks negatief beinvloed. Laastens, sal die rol van kern state, mees aanmerklik streek leiers soos Suid Afrika en Nigerie, belangrik bly om die sekuriteits kompleks te stabiliseer en verdere ontwikkeling in die toekoms te bevorder.

El propósito de este estudio es abordar el concepto de espacio y, en particular, su desocupación, a través de tres obras: Caja Vacía/Metafísica de Jorge Oteiza, Who´s afraid of red, yellow and blue de Barnett Newman y el Pabellón de Alemania de Ludwig Mies van der Rohe. El discurso se construye a través de un transitar sobre la banda de Moebius y en su vaivén y en su doblez aparecen y desparecen imágenes, ideas y textos sobre los que fluye la voluntad de construir una interpretación nueva sobre el objeto descrito. Martin Heidegger, Gilles Deleuze y Gaston Bachelard son los tres sostenes teóricos de esta estructura. Y más cerca y más lejos de este texto siempre se mantiene la difícil tarea de entender cuál es la forma de habitar y de ser (Ich bin) del hombre en la tierra. / The purpose of this study is to address the concept of space and, in particular, its disoccupation through three different pieces of work: Empty/Metaphysical Box by Jorge Oteiza, Who´s afraid of red, yellow and blue by Barnett Newman and German Pavilion by Ludwig Mies van der Rohe. The discourse is constructed through a move on the Moebius band, its swing and double apparition and disappearance of images, ideas and texts which build a new interpretation of the subject matter. Martin Heidegger, Gilles Deleuze and Gaston Bachelard are the three theorists of this structure. The difficult task of understanding what is the way of living and being of man (Ich bin) on earth always remains what is closer and further away from this text.

The effect of shale gas activities on ground-level ozone pollution in the Dallas-Fort Worth area is studied in detail here. Ozone is a highly reactive species with harmful effects on human and environment. Shale gas development, or fracking, involves activities such as hydraulic fracturing, drilling, fluid mixing, and trucks idling that are sources of nitrogen oxides (NOX) and volatile organic compounds (VOC), two of the most important precursors of ozone. In this study two independent approaches have been applied in evaluating the influences on ozone concentrations. In the first approach, the influence of meteorology were removed from ozone time series through the application of Kolmogorov-Zurbenko low-pass filter, logarithmic transformation, and subsequent multi-linear regression. Ozone measurement data were acquired from Texas Commission on Environmental Quality (TCEQ) monitoring stations for 14 years. The comparison between ozone trends in non-shale gas region and shale gas region shows increasing ozone trends at the monitoring stations in close proximity to the Barnett Shale activities. In the second approach, the CAMx photochemical model was used to assess the sensitivity of ozone to the NOX and VOC sources associated with shale oil and gas activities. Brute force method was applied on Barnett Shale and Haynesville Shale emission sources to generate four hypothetical scenarios. Ozone sensitivity analysis was performed for a future year of 2018 and it was based on the photochemical simulation that TCEQ had developed for demonstrating ozone attainment under the State Implementation Plan (SIP). Results showed various level of ozone impact at different locations within the DFW region attributed to area and point sources of emissions in the shale region. Maximum ozone impact due to shale gas activities is expected to be in the order of several parts per billion, while lower impacts on design values were predicted. The results from the photochemical modeling can be used for health impact assessment and air quality management purposes. Both studies in this research show that the impact of shale gas development on local and regional level of ozone is significant, and therefore, it should be considered in the implementation of effective air quality strategies.

Conventional sources of emissions have been a prime target for policymakers in designing pollution control strategies. However, the evolution of shale gas activities is a growing concern over the impact of unconventional sources on urban and regional air quality. Owing to the development of Barnett Shale production, the fast-growing Dallas-Fort Worth (DFW) metroplex has encountered both types of these emissions. Oil and gas activities result in emissions of ozone precursors, notably volatile organic compounds (VOC). The major objective of this study was to evaluate the spatio-temporal distribution of VOC in order to highlight the influence of unconventional emissions. The study utilized measurements from automated gas chromatography (AutoGC) monitors to analyze the patterns of the total non-methane organic compounds (TNMOC) and relative contributions from marker species of traffic versus oil and gas activities. In this study, data from 2001-2014 was obtained from the Texas Commission on Environmental Quality (TCEQ) for fifteen monitoring sites within the North Texas region. With over a thousand wells in a 10 mile radius, two of the rural sites measured twice as much TNMOC as compared to the urban site in Dallas. Source apportionment analysis was conducted using Positive Matrix Factorization (PMF) technique. The target site located in the urban zone resolved an eight factor model. Natural gas signature was the dominant source of emission with a 52% contribution followed by 31% from two separate traffic-related sources. Considering ethane to be the dominant species in oil and gas emissions, it was observed that the rising ethane/NOx ratio correlated with increasing annual average ozone post-2007. In this period, higher concentration of ozone was found to be associated with stronger winds from the Barnett Shale area – a region that did not seem to contribute to high ozone during 2001-2007. With traffic emissions having flattened over the years, the recent increase in oil- and gas-related emissions has a negative impact on the air quality in this area. Results indicate that the area has failed to observe a declining trend in ozone despite effective reductions in NOx and traffic-related VOC emissions. The findings of the study would be helpful in proper evaluation of the ozone-forming potential of unconventional VOC emissions. Although these emissions may not be strong enough to cause harm through direct exposure, underestimating their potential towards ozone formation could hinder the progress in ozone attainment in growing urban areas. After all, a major portion of the study area continues to be in nonattainment of the EPA designated ozone standards. The study therefore draws the attention of policymakers towards the new influx of emissions that have emerged as a powerful source within the DFW metropolitan area.