Made available in DSpace on 2014-07-29T16:27:54Z (GMT). No. of bitstreams: 1 HQTRONICAS E REALIDADE AUMENTADA parte 1.pdf: 7180856 bytes, checksum: 22438288a13d4acb87ad652d9fa940f9 (MD5) Previous issue date: 2012-06-04 / This master's research presented to the Pós-Graduation Program in Cultura Visual of FAV/UFG, in the research line Poéticas Visuais e Processos de Criação, is intended to study HQtrônicas an intermedia narrative - and the technology of Augmented Reality (AR), trying to show the narratives possibilities opened by this technology when it works with the language of HQtrônicas. Besides the investigations necessary for the theoretical and conceptual production, an experimental art work was developed, a practical exercise that incorporates the AR as a new possibility for the emerging language of HQtrônicas, showing other alternatives that were not experimented before in the HQtrônica´s structure. / Essa pesquisa exploratória de mestrado, desenvolvida no Programa de Pós-graduação em Cultura Visual da FAV/UFG, na linha de pesquisa Poéticas Visuais e Processos de Criação, teve como objetivos o estudo da linguagem das HQtrônicas uma narrativa intermídia em expansão e da tecnologia emergente da Realidade Aumentada (RA), visando vislumbrar as possibilidades narrativas abertas por essa tecnologia e seus desdobramentos no âmbito das HQtrônicas. Além das investigações teóricas e conceituais necessárias à compreensão dos temas abordados, o trabalho envolveu o desenvolvimento de uma poética experimental, um exercício de criação que incorpora a RA como uma nova potencialidade para a linguagem das HQtrônicas, propondo alternativas antes inéditas dentro da estrutura hipermidiática dessa linguagem intermídia.

The seven compositions that comprise this dissertation are represented by the following files: text file (pdf), seven video performances (mp4), and corresponding zipped files of custom software and affiliated files (various file types). / This Digital Portfolio Dissertation presents seven compositions including text documents that explain the synthesis techniques, data mapping and routing, visual elements, the software used, all software needed to reproduce these works, and a video recording of all seven compositions. The unifying thread in my seven works is magic. The sense of magic in a live performance is the connection between artist and audience that lies beyond the immediate understanding of any work. I use this insight to create a new world inspired by sound and visuals. I perform each of these works by combining my understanding of data-driven instruments and my experience as a classically trained musician. The combination of sound design, visual composition, and a sense of magic allows me to realize these seven works. My goal is to contribute to the extensive library of electroacoustic works through my performance of my music with data-driven instruments.

Potential alliances between queers and animals populate queer scholarship, while dominant culture has relegated both groups to similar sites of subjugation and abjection. My work presents utopic visions crafted from these shared sites of marginalization and asks how they can enable new biopolitical communities. I ask: can we co-habitate, with non-human animals, these particular sites of marginalization in a manner that enables cross-species, affective solidarity? And can this co-habitation also encourage ruptures within heteronormative and human-centric paradigms? Rescuing the subjectivity and cultures of animals from extent subjugations can build new multispecies communities that are essential in an era of environmental devastation and climate change. Through printmaking, installation and time-based media, I explore real, psychological and metaphorical environments of cross-species encounters.

This dissertation analyzes the institutionalization of avant-garde artistic practice within an American university, the University of Iowa between the years 1967 and 2000. In order to understand the development of the Intermedia program at Iowa, the institutional context of the "Iowa Idea" as it was developed on campus from the 1930s that emphasized the simultaneous instruction of art history and theory with instruction in the graphic and plastic arts. Following the success of the Iowa Writers' Workshop, the University of Iowa received a major grant from the Rockefeller Foundation in 1970 to form the Center for New Performing Arts. Following the development from Happenings to Intermedia, and gradually into specific "disciplines" of performance art and video art, this dissertation demonstrates how the institution was inseparable from these avant-garde practices which required significant resources to develop. The importance of technology is traced through the digital revolution in the arts, and the role of "intermedia" is shown to be part of a process of changing consciousness as opposed to commonly accepted definitions of "multimedia" or Gesamtkunstwerk.

Objectives: This investigation adapted the LIVE/DEAD� Baclight[TM] bacterial viability stain for the quantitative determination of bacterial cell viability of the aerotolerant anaerobes Porphyromonas gingivalis ATCC 33277 and Prevotella intermedia ATCC 25611. The Live/Dead stain was used to determine the influence of haem availability on the resistance of P. gingivalis and P. intermedia to the reactive oxygen species (ROS) superoxide anion and hydrogen peroxide and compare the sensitivities between the haem-requiring periodontal bacteria to ROS. Neutrophils use oxidative and non-oxidative killing mechanisms. During phagocytosis, neutrophils kill bacteria via a respiratory burst, producing ROS. P. gingivalis and P. intermedia are oxygen-tolerant gram-negative bacteria found in the gingival crevice. These bacteria express superoxide dismutase (SOD) activity, which extends some protection against superoxide radicals. Methods: Initially, experiments were performed to validate the reliability and accuracy of the fluorogenic Live/Dead stain using Escherichia coli ATCC 10798 (K-12), followed by experiments using P. gingivalis. The Live/Dead stain distinguishes viable:non-viable proportions of bacteria using mixtures of green (SYTO 9) and red (propidium iodide) fluorescent nucleic acid stains respectively. Bacterial cell viability was assessed with fluorescence microscopy and subsequently quantitative measurement using a fluorescence microplate reader (BMG Fluorostar plus Optima). P. gingivalis and P. intermedia colonies were subcultured from frozen cultures, in Tryptic soy broth (TSB) (Difco) and incubated anaerobically for approximately five days. They were further subcultured in pre-reduced TSB, supplemented with menadione 0.5[mu]g/ml (TSB-M) and either 5 [mu]g/ml haemin (Haem 5), 50 [mu]g/ml haemin (Haem 50) or without supplemental haemin (Haem 0). Cultures were grown anaerobically at 37�C to early stationary phase (approximately 48 hours). For experimental purposes, bacteria were harvested, washed and resuspended in 10 mM Tris-buffered saline (pH 7.5) containing peptone (TBS-P) (0.1 mg/ml), with a final adjustment to OD₅₄₀ [approximately equals] 2.0 (which corresponds to 1 x 10⁹ bacteria/ml). Bacterial suspensions were diluted ([approximately equals] 10⁸/ml) into TBS-P containing the fluorogenic viability stain (BacLight, Molecular Probes). Either pyrogallol (0.02 - 2 mM) or hydrogen peroxide (0.01 - 100 mM) was added (except to control tubes); tubes were vortexed for ten seconds and incubated at 37�C. Viability was monitored fluorimetrically for three hours. Results: For both P. gingivalis and P. intermedia, a pyrogallol concentration of 0.2 mM resulted in 80 to 90% cell death; and a hydrogen peroxide concentration of 10 mM killed approximately 80 to 90% of cells. Irrespective of the haem status, no significant difference was determined between the overall maximum rate of killing of P. gingivalis and P. intermedia, in their response to either superoxide or hydrogen peroxide; with the exception that the P. intermedia Haem 0 group was significantly less susceptible to hydrogen peroxide than the P. gingivalis Haem 0 group. For the majority of the experiments, there was no significant difference between final bacterial cell viability in the Haem 0 and Haem 5 cells for both species, after 3 hours exposure to various concentrations of ROS. However, the Haem 50 cells showed a significant increased susceptibility (albeit, a small difference) to both hydrogen peroxide and superoxide. Conclusions: The Live/Dead bacterial viability stain provided a valuable method to monitor "real-time" killing, avoiding the difficulties associated with culture-based methods for assessing viability. Haem availability had no clear influence on the resistance to ROS of either P. gingivalis or P. intermedia Haem 0 and Haem 5 cells. The Haem 50 cells showed a very slight increase in susceptibility to hydrogen peroxide and superoxide. Although P. intermedia may be isolated in significant numbers from healthy gingivae, as well as from periodontally diseased sites, it was no more resistant to ROS than was P. gingivalis, which is associated with periodontal lesions and difficult to cultivate from relatively healthy (more oxygenated) sites. This suggests that resistance to ROS does not contribute to the ecological distinction between these two species. The finding that haem availability did not influence sensitivity implies that these bacteria do not accumulate haem for the purpose of protection from ROS.

Studies described in this thesis were performed to investigate associations among season, diet, pituitary pars intermedia dysfunction (PPID) and blood concentrations of adrenocorticotropic hormone (ACTH), insulin, glucose, and leptin in horses. In the first study, higher ACTH concentrations were detected in horses affected with PPID. A seasonal increase in plasma ACTH concentration was detected in the late summer and early fall, but PPID did not affect the timing or duration of this increase. Pasture grazing raised glucose and insulin concentrations with a peak in September, at the same time that horses had higher ACTH concentrations, and this convergence of risk factors may raise the risk of laminitis. All of the horses included in this study were from the same farm. The second study was performed to determine whether horses from different locations within the same region exhibited the same seasonal increase in ACTH concentrations. Results of this study indicate that the seasonal increase in plasma ACTH concentrations occurs in horses from different farms with varying management practices. The third study investigated the effects of season on plasma leptin concentrations in the horses from the first study. We hypothesized that higher leptin concentrations would be detected in advance of the seasonal increase in plasma ACTH concentrations. Results did not support our hypothesis because leptin concentrations increased after ACTH concentrations peaked in September. Our findings suggest that the seasonal increase in ACTH concentrations induced leptin resistance, which might facilitate weight gain in the autumn. Alternatively, leptin concentrations increased as a result of weight gain or change in body fat composition. In summary, season appears to signal upregulation of the hypothalamic-pituitary-adrenal axis in horses, in an effort to prepare for winter. This upregulation is retained in horses with PPID, a disorder associated with loss of dopaminergic inhibition to the pars intermedia of the pituitary. The seasonal rise in plasma ACTH concentrations is followed by an increase in leptin concentrations, which suggests the development of leptin resistance or an increase in adiposity.

Since 1970, Rio Grande wild turkey (Meleagris gallapavo intermedia) numbers in the southern region of the Edwards Plateau of Texas have been declining. Nest-site characteristics and invertebrate abundance were hypothesized as limiting wild turkey numbers in declining regions. Wild turkeys were trapped and fitted with mortality-sensitive radio transmitters on 4 study areas; 2 within a region of stable (northern Edwards Plateau) populations, and 2 within a region of declining populations. Monitoring occurred from February 2001 to August 2003. Nest-site locations were determined via homing during the breeding season. Following nesting attempts/completions, nest fate, vegetation height, visual obstruction, litter depth, percent cover, and cover scores of forbs, grass, litter, and bare ground at each nest site and surrounding area were sampled. This was done to determine if wild turkey hens selected nest sites with vegetative characteristics differing from surrounding habitat. Brood survival was calculated as >1 poult surviving to 2-weeks. Broods were followed for 6-weeks post-hatch or to brood failure. Invertebrates were collected, via sweep-net and D-vac, at each visually confirmed brood location and a paired random site to determine if wild turkey hens selected brood habitat based on invertebrate abundance. Analyses were performed to determine if invertebrate abundance differed between study regions. Turkey hens selected nest sites with greater visual obstruction and more litter depth on both regions of stable and declining turkey abundance. No vegetative differences were detected between stable and declining region nest sites. Frequency of Orthoptera was 3–5 times greater at nest sites on stable regions than declining regions in all 3 years. Orthoptera is a noted food source for young galliformes and comprised the majority of dry mass in invertebrate samples, nest sites and brood locations, on both the stable and declining regions. No differences in total invertebrate dry mass were detected between regional brood locations. Nest-site vegetative characteristics did not alter nest success between regions. The 2 overall objectives of this study were to determine if nest-site vegetation characteristics and invertebrate abundance affected wild turkey numbers in the Edwards Plateau. Regional differences in vegetative characteristics were not detected, thus not likely to be causing differences in turkey numbers between regions. Nest-site invertebrates were found to be 3–5 times greater at stable region nest sites, possibly giving wild turkey poults from stable regions greater initial chances of survival.

To determine possible causes of declining Rio Grande wild turkey (RGWT; Meleagris gallopavo intermedia) abundance in the southern Edwards Plateau, research was conducted on 4 sites, 2 with stable (S [SA and SB]; Kerr and Real counties) and 2 with declining (D [DA and DB]; Bandera County) RGWT populations. RGWTs were trapped, radio-tagged, and tracked. Ranges were constructed with 95% kernels. Data on brood survival and invertebrate and predator abundances were combined with range characteristics to assess habitat at a landscape scale. Annual range sizes did not differ in year 1, but were larger in S than in D in year 2. Range sizes in S increased from year 1 to year 2 while there was no change in range sizes in D. Range overlap was higher in D than S in both years. Movement distances remained consistent in S for both years, but were larger in D during year 1. During year 1 and year 2, RGWT females exhibited larger reproductive ranges and less range overlap in S. Invertebrate abundance for 4 insect orders was 2.5–15.9 times greater in S than in D while coyote abundance was 2–3 times greater in D than in S. Results were similar in year 3, with the exception of SB, where reproductive ranges and spatial arrangement were smaller than all other sites. My results refute the conventional assumption that larger ranges are indicative of poorer habitat quality. Range overlap suggests that useable space may have been limiting in D in the less productive year 2. In D, multiple broods used the same reproductive range, presumably depleting resources faster than in S. Greater predator abundance in D increased the risk of brood predation. The smaller reproductive spatial arrangement of SB females in year 3 correlates there being >3 times the percentage of females missing in other sites. If SB females moved further in year 3 than the detection distance of the radio telemetry equipment, the results would fit the pattern of greater dispersion distance in SA. RGWT females may attempt to separate themselves from other breeding females, possibly to avoid nest or brood predation and/or potential competition for brood resources.

Since 1970, Rio Grande wild turkey (Meleagris gallapavo intermedia) numbers in the southern region of the Edwards Plateau of Texas have been declining. Nest-site characteristics and invertebrate abundance were hypothesized as limiting wild turkey numbers in declining regions. Wild turkeys were trapped and fitted with mortality-sensitive radio transmitters on 4 study areas; 2 within a region of stable (northern Edwards Plateau) populations, and 2 within a region of declining populations. Monitoring occurred from February 2001 to August 2003. Nest-site locations were determined via homing during the breeding season. Following nesting attempts/completions, nest fate, vegetation height, visual obstruction, litter depth, percent cover, and cover scores of forbs, grass, litter, and bare ground at each nest site and surrounding area were sampled. This was done to determine if wild turkey hens selected nest sites with vegetative characteristics differing from surrounding habitat. Brood survival was calculated as >1 poult surviving to 2-weeks. Broods were followed for 6-weeks post-hatch or to brood failure. Invertebrates were collected, via sweep-net and D-vac, at each visually confirmed brood location and a paired random site to determine if wild turkey hens selected brood habitat based on invertebrate abundance. Analyses were performed to determine if invertebrate abundance differed between study regions. Turkey hens selected nest sites with greater visual obstruction and more litter depth on both regions of stable and declining turkey abundance. No vegetative differences were detected between stable and declining region nest sites. Frequency of Orthoptera was 3–5 times greater at nest sites on stable regions than declining regions in all 3 years. Orthoptera is a noted food source for young galliformes and comprised the majority of dry mass in invertebrate samples, nest sites and brood locations, on both the stable and declining regions. No differences in total invertebrate dry mass were detected between regional brood locations. Nest-site vegetative characteristics did not alter nest success between regions. The 2 overall objectives of this study were to determine if nest-site vegetation characteristics and invertebrate abundance affected wild turkey numbers in the Edwards Plateau. Regional differences in vegetative characteristics were not detected, thus not likely to be causing differences in turkey numbers between regions. Nest-site invertebrates were found to be 3–5 times greater at stable region nest sites, possibly giving wild turkey poults from stable regions greater initial chances of survival.

To determine possible causes of declining Rio Grande wild turkey (RGWT; Meleagris gallopavo intermedia) abundance in the southern Edwards Plateau, research was conducted on 4 sites, 2 with stable (S [SA and SB]; Kerr and Real counties) and 2 with declining (D [DA and DB]; Bandera County) RGWT populations. RGWTs were trapped, radio-tagged, and tracked. Ranges were constructed with 95% kernels. Data on brood survival and invertebrate and predator abundances were combined with range characteristics to assess habitat at a landscape scale. Annual range sizes did not differ in year 1, but were larger in S than in D in year 2. Range sizes in S increased from year 1 to year 2 while there was no change in range sizes in D. Range overlap was higher in D than S in both years. Movement distances remained consistent in S for both years, but were larger in D during year 1. During year 1 and year 2, RGWT females exhibited larger reproductive ranges and less range overlap in S. Invertebrate abundance for 4 insect orders was 2.5–15.9 times greater in S than in D while coyote abundance was 2–3 times greater in D than in S. Results were similar in year 3, with the exception of SB, where reproductive ranges and spatial arrangement were smaller than all other sites. My results refute the conventional assumption that larger ranges are indicative of poorer habitat quality. Range overlap suggests that useable space may have been limiting in D in the less productive year 2. In D, multiple broods used the same reproductive range, presumably depleting resources faster than in S. Greater predator abundance in D increased the risk of brood predation. The smaller reproductive spatial arrangement of SB females in year 3 correlates there being >3 times the percentage of females missing in other sites. If SB females moved further in year 3 than the detection distance of the radio telemetry equipment, the results would fit the pattern of greater dispersion distance in SA. RGWT females may attempt to separate themselves from other breeding females, possibly to avoid nest or brood predation and/or potential competition for brood resources.