2754 matches in the database.
These are records: 1 - 30.
[1] [2] [3] [4] [5] … [92]
1.
Caabeiro, Daniel.
“¿Que pinto yo aqui?:” The Construction of National Identity in Contemporary Spanish Rural Cinema.
Degree: MA, Film (Fine Arts), 2011, Ohio University
► This thesis deals with the construction of national identity as defined by…
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▼ This thesis deals with the construction of national identity as defined by post-Franco Spanish rural cinema. It takes into account issues of cultural and political stagnancy in twentieth century Spain, as well as the larger historical and psychological trajectory of the same. This work examines notions of Spanish identity through the films of Fernando Gomez, Mario Camus, Jose Luis Cuerda and others, and considers the cultural and sociological conditions internal and external to the works themselves.
Advisors/Committee Members: Eliaz, Ofer.
Subjects: Film Studies
Keywords: Spanish; rural cinema; rural; national identity; Spanishness.
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2.
CABALFIN, EDSON ROY GREGORIO.
ART DECO FILIPINO: POWER, POLITICS AND IDEOLOGY IN PHILIPPINE ART DECO ARCHITECTURES (1928-1941).
Degree: MS ARCH, Design, Architecture, Art, and Planning : Architecture, 2003, University of Cincinnati
► This research argues that the Art Deco style in the Philippines can…
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▼ This research argues that the Art Deco style in the Philippines can be understood both as the imposition of power by the colonizer and the demonstration of resistance of the colonized. The study also proposes that the style can never be neutral, innocent or inert, rather can be embedded within intricacies of ideological practices and political processes. Scholarship on Art Deco architecture outside Europe and the Americas, especially in the Philippines, has remained uncritical as these were often limited to formalistic analysis. Using postcolonial theory, the critical historiography on Philippine Art Deco is to be investigated in terms of three critical categories of mode of production, representation and power. First, mode of production, shows how Art Deco was connected and dependent on the relationship between producers and consumers of the style. The interaction of materials, technologies of construction, patronage, institutions and cultural agents were highlighted in this chapter. Second, representation, explores how Art Deco became the technology of refashioning and re-presenting the different realities. The form, typologies, variants of the architectural style are dissected and problematized according to the politics of representation; Third focuses on power, or the dynamics between the dominated-subjugated and colonizer-colonized. This section established the linkage between the political, economic and social colonial programs and its manifestations in the built form of that period. Furthermore, modes of resistances and empowerment were identified and probed in relation to the power dynamics.
Advisors/Committee Members: Snadon, Patrick.
Subjects: Architecture
Keywords: architecture - Philippines - 20th Century; Art Deco; Philippine-American relations; architecture historiography; Postcolonial theory - architecture
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4.
Cabarcas, Daniel.
An Implementation of Faugère's F4 Algorithm for Computing Gröbner Bases.
Degree: MS, Engineering : Computer Science, 2010, University of Cincinnati
► Gröbner Bases are an important tool for analyzing systems of polynomial equations.…
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▼ Gröbner Bases are an important tool for analyzing systems of polynomial equations. They allow the system of equations to be solved exactly and therefore have gained popularity in many areas of science and technology. However, finding Gröbner Bases is a computationally intensive task, thus, several algorithms have been developed for this goal. Faugère invented an elaborate algorithm to compute Gröbner Bases in 1999 called F4, which has become a benchmark due to its efficiency. We have implemented F4 from scratch in C++. In this thesis we revisit the theoretical foundation of the algorithm, provide details of our implementation, and compare it with other software that computes Gröbner Bases.
Advisors/Committee Members: Franco, John.
Subjects: Computer science
Keywords: Groebner Bases; Implementation; Algorithm; Gröbner Bases
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5.
Cabarcas, Daniel.
Gröbner Bases Computation and Mutant Polynomials.
Degree: PhD, Arts and Sciences: Mathematical Sciences, 2011, University of Cincinnati
► Gröbner bases are the single most important tool in applicable algebraic geometry.…
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▼ Gröbner bases are the single most important tool in applicable algebraic geometry. They are used to compute standard representatives in the residue classes of a polynomial ring modulo an ideal and they can be used as a step towards solving a system of polynomial equations. Applications in science and technology are abundant, particularly in cryptography and coding theory. Computation of Gröbner bases is challenging. It has computational complexity double exponential in the worst-case and exponential in average. Although this makes Gröbner bases intractable in many cases, a great deal of effort has been devoted to improve algorithms to compute faster larger Gröbner bases. The concept of mutant polynomials, introduced by Ding in 2006, quantifies the deviation from the average case, leading to faster algorithms that profit on this degeneration. In this dissertation we introduce three algorithms aiming at improving Gröbner bases computation that are inspired by mutant polynomials. The mutantF4 algorithm modifies Faugère's F4 by exploiting the presence of mutant polynomials. The MXL3 algorithm introduces a termination condition based on the absence of mutant polynomials. And the MGB algorithm combines MXL3 with the idea of preempted reduction to avoid storing large sets of polynomials. Each new idea achieved gains in speed and/or memory usage. The MGB algorithm is particularly successful, which was demonstrated by being the first algorithm to be able to compute a Gröbner basis for a random system of 32 quadratic polynomials in 32 variables over GF(2). We also propose LASyz, a method to avoid redundant computation in Gröbner bases computation, that is compatible with mutant algorithms. LASyz is a simple yet effective method to significantly reduce unproductive reductions to zero. It uses linear algebra to maintain a set of generators for the module of syzygies. LASyz is compatible with mutant Gröbner basis algorithms thanks to its simplicity and the use of linear algebra for reducing both polynomials and syzygies. Finally, we establish some theoretical results for mutant polynomials. We define the concept of mutant space, and study its dimension. We demonstrate that the mutant space is trivial in generic situations. We link the concept of mutants to the notions of regular sequences and syzygies. And we conjecture that the dimension of the mutant space constitutes a generic property of sequences of polynomials.
Advisors/Committee Members: Ding, Jintai.
Subjects: Mathematics
Keywords: Gröbner bases; Mutant polynomials; Complexity; Algorithms; Symbolic computation; Linear algebra
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6.
Cable, Courtney T.
The Akron Civic Theatre: A Digital Presence.
Degree: MA, Theatre Arts-Arts Administration, 2011, University of Akron
► This practical thesis discusses the considerations, planning efforts, and implementation process needed…
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▼ This practical thesis discusses the considerations, planning efforts, and implementation process needed to create an online branding marketing video for a nonprofit arts organization. The goals are to sell the organization, its values and culture, build online brand awareness, drive customers to the website, and inform purchase intent. The final product is a short two minute and thirty second digital marketing video to be used to benefit the organization in its current marketing position. The commercial-like video captures the essence and values of The Akron Civic Theatre’s brand and aligns with the current and future goals of the organization. The message of the video tells the evolving story of the organization and offers a fun, inviting, and personal connection with the venue by showcasing the versatile space and highlighting organizational leaders. The content broadens and advances the organization’s digital online presence and communicates that the community can use the versatile space for purposes other than programmatic entertainment.
Advisors/Committee Members: Pope, Durand L.
Subjects: Arts Management; Marketing; Theater Studies
Keywords: The Akron Civic Theatre; Akron; Arts Administration; atmospheric theatre; online branding; online marketing video; City of Akron; Lowe's Theatre; nonprofit arts organization; rust belt; urban development; venue; online branding; institutional marketing
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7.
Cable, Timothy J.
Luther and the Reformation of Public Discourse.
Degree: MA, German, 2010, Bowling Green State University
► This thesis traces the link between Martin Luther and the Enlightenment by…
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▼ This thesis traces the link between Martin Luther and the Enlightenment by examining Luther's thought in the context of advances in communication technology. In response to traditional Luther studies, which have tended to be freighted with theological presuppositions and traditional modes of interpretation, I base my study on a close-reading of Luther's "Von der Freiheit eines Christenmenschen" ("On the Freedom of a Christian") and use my reading of this text to argue that the advent of printing caused humans to change the way they see themselves, in that communication via print seems to call for a distinction between public role and private individual. To examine the political implications of this new concept of human identity, I compare "Freiheit eines Christenmenschen" to Immanuel Kant's "Beantwortung der Frage: Was ist Aufklaerung?" ("An Answer to the Question: What is Enlightenment?") and argue that the roots of the Enlightenment reach back as far as Luther. Finally, using Heinrich von Kleist's novella "Michael Kohlhaas" as a parable of what both Luther and the Enlightenment wrought, I examine the broader consequences of Luther's concept of public discourse and its relationship to Enlightenment thought.
Advisors/Committee Members: Landgraf, Edgar.
Subjects: German literature
Keywords: Public Discourse; Reformation; Enlightenment; Martin Luther; Immanuel Kant; Heinrich von Kleist; Von der Freiheit eines Christenmenschen; Was ist Aufklaerung; Michael Kohlhaas
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8.
CABOVSKA, BAIBA.
INVESTIGATIONS OF SEPARATION MECHANISMS IN CAPILLARY ELECTROPHORESIS AND HIGH PERFORMANCE LIQUID CHROMATOGRAPHY.
Degree: PhD, Arts and Sciences : Chemistry, 2003, University of Cincinnati
► In the beginning of this work, the applications of ionic liquids to…
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▼ In the beginning of this work, the applications of ionic liquids to chromatography and capillary electrophoresis are reviewed. This review discusses the interactions ionic liquids provide in the retention and separation of various analytes. The use of ionic liquids is further encompassed in Chapters 2, 3 and 4. Aqueous capillary electrophoretic studies were performed to investigate interactions between halophenols and 1-ethyl-3-methylimidazolium tetrafluoroborate or tetraethylammonium tetrafluoroborate electrolytes. In both cases, the impact of halogen size and place of substitution was investigated. Investigating the interactions between halophenols and ionic liquids by NMR, the NMR results indicated hydrophobic stacking interactions between the iodophenols and possible similar interaction among phenols and imidazolium. Following the CE studies, the applications of ionic liquids to HPLC were also investigated. Two different alkylimidazoles were attached to silica support and the effect of organic modifier, pH and ionic strength on retention was examined. The imidazolium based stationary phase was compared with a reversed phase column, which incorporated only alkylbromide as the functional group. The analytes selected allowed differentiation between reversed phase and ion-exchange phase behavior on the stationary phases. In Chapter 5, the separation of cocaine stereoisomers and metabolites was investigated. The effect of methanol and acetonitrile as organic modifiers and the effect of different concentrations of sulfated cyclodextrin on the resolution and migration times of the analytes were investigated. A reproducible method for the separation of cocaine stereoisomers was developed.
Advisors/Committee Members: Stalcup, Dr. Apryll M.
Subjects: Chemistry, Analytical
Keywords: ionic liquids; cocaine; Halophenols
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9.
Cabral, Kyle H. K.
PROXIMAL STRESS PROCESSES AS PREDICTORS OF ALCOHOL USE IN GAY AND BISEXUAL MALES: A PARTIAL TEST OF THE MINORITY STRESS THEORY.
Degree: MA, Psychology, 2007, Bowling Green State University
► Research has shown that gay and bisexual males use alcohol in higher…
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▼ Research has shown that gay and bisexual males use alcohol in higher quantities and more frequently than their heterosexual counterparts. In this study, I examined the relationship between sexual identity (internalized homonegativity and gay identity formation) and the quantity and frequency of alcohol use, drinking-related consequences, and drinking-related outcome expectancies in gay and bisexual males. I recruited two samples (n1 = 529; n2 = 337) via the World-Wide-Web who completed my survey online. Participants in both samples who reported a more integrated gay identity also reported less internalized homonegativity. In the second sample, there was a small but consistent relationship between internalized homonegativity, quantity and frequency of alcohol use and drinking related consequences. There was no relationship between gay identity formation and any of the drinking outcome variables. None of the sexual identity variables explained more than 10% of the variance in alcohol-related behaviors. Although the methods of this project attempted to address some of the limitations of previous research by using a larger sample size, using more than one measure of internalized homonegativity, and attempting to recruit a demographically diverse sample, my results are similar to previous results. Future directions for research include recruiting a wider range of problem and non-problem drinkers, more subjects in the lower stages of gay identity development, and subjects who are less educated, older, lower income, and from a variety of ethnic backgrounds.
Advisors/Committee Members: Rosenberg, Harold.
Keywords: Gay and Bisexual Males; Alcohol Use; Drinking Behavior; Alcohol Expectancies; Alcohol Consequences; Internalized Homonegativity; Gay Identity Development; Gay Identity Formation; Gay Identity
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10.
Cabrera, Antonio.
Genetic Analysis and Fruit weight QTL fine mapping in Sweet cherry (Prunus avium L.).
Degree: PhD, Horticulture and Crop Science, 2011, Ohio State University
► Apple, peach and strawberry are some of the most economically important fruit…
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▼ Apple, peach and strawberry are some of the most economically important fruit crops within the Rosaceae family. Nevertheless, the presence of gametophytic self-incompatibility system, long vegetative development and space requirement for some of these crops has hampered rapid improvement through traditional breeding. Despite active efforts in the Rosaceae community for developing genetic and genomic tools for rapid improvement, resources in cherry have lagged behind the major rosaceous crops. In an effort to improve tools for cherry breeding programs, we explored the suitability of the peach genetic and genomic resources to develop markers mapping to targeted regions of the sweet cherry genome. We used all available peach markers and mapped them to sweet cherry, however low marker transferability and inconsistencies between the physical and genetic peach maps hampered our progress for marker development in cherry. Since Conserved Orthologous sequences (COS) represent a set of genes that are conserved in sequence and copy number through plant evolution, we developed a set of rosaceous COS (RosCOS) for marker development cherry. Results from this study show that this set of markers provides enormous potential for marker development in the Rosaceae family and synteny analysis across families. To extend the use of these RosCOS to sweet cherry, we studied the level of polymorphism in breeding germplasm and developed the most extensive sweet cherry genetic map to date. Finally, the overall genome synteny between peach and cherry revealed by the RosCOS facilitated de development of cherry SNPs and SSRs markers to fine map a QTL region underlying phenotypic differences in fruit size in cherry. The map position of the fruit size QTL was narrowed down to a 1Mb region
Advisors/Committee Members: van der Knaap, Esther.
Subjects: Genetics
Keywords: Rosaceae, RosCOS, QTL, Prunus avium, Fruit weight
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11.
Cabrera, Eusebio Duarte.
Evaluation of the Capabilities of Microinjection Molding to Produce Deformable Membrane Mirrors.
Degree: MS, Mechanical Engineering, 2010, Ohio State University
► Microinjection molding has been getting more and more attention over the past…
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▼ Microinjection molding has been getting more and more attention over the past few years because it is becoming one of the most promising fabrication technologies for the mass production of thermoplastic polymer micro parts. Applications of the end product of microinjection molding include micro-fluidics, micro-optics, and medical instruments and devices. A few examples of micro fluidic devices include pumps, valves, capillary analysis systems, and flow sensors. The advantages of micro molding polymer optics include the following: the capability of manufacturing complex optical elements that share multiple working surfaces, and the capability of manufacturing high precision optical surfaces with low weight and reduced cost. The first step of microinjection molding consists in the fabrication of a micro mold insert. A step which can be very tedious, but once a micro mold insert has been fabricated, many thermoplastic micro-parts can be molded in a short time, thus reducing the final cost. New innovate materials must be researched and new techniques need to be developed in order to satisfy the product performance requirements and meet the economic demand. Main concerns of microinjection molding include the following: high aspect ratio of micro features, molten polymer resin cools rapidly due to an increase in contact surface between the relatively cold mold wall and the molten polymer, and the relatively high viscosity of polymeric materials. There have been a few papers discussing the micro injection molding process, but to date, there is no comprehensive research that develops a clear understanding between the controllable process variables and the quality of the micro injection molded parts. The focus of this research was concentrated towards evaluating the capability of microinjection molding to produce deformable membrane mirrors. The effects of the control process variables of microinjection on the quality of the molded deformable membrane mirror were studied. Furthermore, the microinjection molded deformable membrane mirrors were tested using a Michelson Interferometer.
Advisors/Committee Members: Lee, James.
Subjects: Industrial engineering
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12.
Cabrera, Marco Eugenio.
Identification, modeling, and analysis of the dynamics of lactate and oxygen uptake during exercise in man.
Degree: PhD, Biomedical Engineering, 1995, Case Western Reserve University
► In this study, the human bioenergetic system is identified and then modeled…
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▼ In this study, the human bioenergetic system is identified and then modeled to relate cellular metabolism to whole-body responses during hypoxia and exercise. First, the dynamic characteristics of the physiological system are investigated using system identification methods. A time series model of the lactate concentration (LA) and oxygen uptake (VO2) response to incremental changes in work rate was fitted to simulated and experimental data. Time-varying system response parameters were determined and then examined. Two major transitions in the parameters were found to occur, at intensity levels equivalent to 53 ± 8% VO2max and 77 ± 9% VO2max. These changes in the parameters indicate that the best linear dynamic model that fits the observed system behavior has changed. The identified parameter changes over time suggest that the exercise intensity range (from rest to VO2max) is divided into three main intensity domains, each with distinct dynamics. Secondly, we developed a mathematical model of human bioenergetics that links cellular metabolism to whole-body responses. Our aim is to examine and quantify the mechanisms that control LA accumulation when O2 avail ability to the muscle is lowered. The model equations, which are based on dynamic mass balances for glycogen, glucose, pyruvate, LA, O2, and CO2, were solved numerically to simulate the system responses to hypoxia. The simulations predict (a) the substrate concentration changes in muscle, splanchnic bed, and other tissues, and (b) changes in other metabolites whose reactions are coupled to the main reactions processes. System responses to simulated respiratory and circulatory hypoxia were examined and compared to experimental data. Model simulations closely predicted the pattern of change in substrates and control metabolites to that from experimental data. A large decrease can occur in muscle O2 concentration without affecting muscle respiration. Only one-third of the increase in LA production can be attributed to changes in redox state (NADH/NAD).Thirdly, we extended the mathematical model to incorporate changes in metabolic rate. Our aim was to examine and quantify the mechanisms that control LA accumulation when the muscle O2 concentration is lowered with moderate exercise. Model simulations of system responses to exercise predict (a) the substrate concentration changes in muscle, splanchnic bed, and other tissues, and (b) changes in other metabolites whose reactions are coupled to the main reactions processes. System responses to a step change in metabolic rate were simulated, examined, and compared to experimental data. Model simulations closely predicted the pattern of change in substrates and control metabolites to that from experimental data. A large decrease can occur in muscle O2 concentration without affecting muscle respiration. Redox state decreased to 50% its initial value during exercise. With exercise initiation, LA increased abruptly, most likely as a result of a concurrent increase in pyruvate due to the sudden stimulation of glycolysis induced by the sharp rise in phosphorylation state. Therefore, during moderate exercise, (a) there are appropriate levels of oxyge nation at the tissue level even during the transient state, and (b) the observed increase in LA concentrations in the muscle and arterial blood are mainly due to the sudden increase in the glycolytic rate. (Abstract shortened by UMI)
Advisors/Committee Members: Saidel, Gerald M.
Subjects: Engineering, Biomedical
Keywords: Exercise, lactate and oxygen uptake
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13.
Cabrera Rios, Mauricio.
MULTIPLE CRITERIA OPTIMIZATION STUDIES IN REACTIVE IN-MOLD COATING.
Degree: PhD, Industrial and Systems Engineering, 2002, Ohio State University
► Reactive in-mold coating (IMC) products have been used successfully for many years…
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▼ Reactive in-mold coating (IMC) products have been used successfully for many years to improve the surface quality of Sheet Molding Compound (SMC) compression molded parts. IMC provides a smooth, sealed surface, used as a conductive or nonconductive primer for subsequent painting operations. The success of IMC for SMC parts has recently attracted the interest of thermoplastic injection molders. The potential environmental and economic benefits of using IMC as a primer and, in the ideal case, to replace painting completely are large. Acceptance of IMC as a competitor to the traditional painting processes will depend upon the improvement of its ability to deliver in-mold coated parts in short cycle times at the highest possible quality level. Most optimization studies in Reactive Polymer Processing involve compromising between different performance measures since, frequently, the controllable variables have conflicting effects on these measures. IMC is not the exception to the rule. The performance measures need to be balanced, each against the other, in order to obtain the best compromises. The goal of this research work is to develop an optimization strategy for the application of reactive in-mold coating to SMC and thermoplastic parts in presence of multiple and conflicting performance measures. To achieve this goal we explore the use of Artificial Neural Networks as metamodeling techniques and the use of Data Envelopment Analysis to solve multiple criteria optimization problems.
Advisors/Committee Members: Castro, Jose M.
Keywords: In-Mold Coating; Multiple Criteria Optimization; Artificial Neural Networks; Data Envelopment Analysis; Reactive Polymer Processing
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14.
Caccia, Lewis E. Jr.
Risk Communication in the Workplace: An Analysis of Communication Toolkits as Rhetorical Practice.
Degree: PhD, College of Arts and Sciences / Department of English, 2009, Kent State University
► This dissertation focuses on rhetorical practices in occupational risk communication. Risk communication…
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▼ This dissertation focuses on rhetorical practices in occupational risk communication. Risk communication is the exchange of information and perspectives relating to issues of uncertain harm or loss. Accordingly, occupational risk communication restricts such exchange and provision to issues concerning the workplace. The study examines the Communications Toolkits written at a Fortune 500 automotive manufacturing plant. The Toolkits are a weekly document written by the plant’s Safety Department for the purpose of teaching employees to avoid injuries that may result in lost work days. More specifically, this study develops systematically-derived taxonomies of written discourse based on Aristotle’s taxonomy of enthymemes and topoi, as discussed in his Rhetoric. This taxonomy is then applied to the Communications Toolkits to determine the topoi used and the extent to which they occur among the enthymemes found in the documents. In so doing, the examination observes and analyzes the manner by which the Communications Toolkits complicate existing representations of risk communication and, more specifically, occupational risk communication. By assessing qualities of the Toolkits, the study suggests that a sub-discipline of the field exists that may be more narrowly distinguished as safety communication. This study finds that the Toolkits are comprised of topoi that deliberate about future safety and praise current actions rather than analyzing past problems. Thus, safety and risk differ in substantive ways: safety communication looks at preventing future harm and affirming community values whereas risk communication assesses posited future harm and either remedies or measures past harm. Future work must more carefully ascribe and delineate how arguments are constructed in the safety communication subfield and to what end within the larger scope of occupational risk communication.
Advisors/Committee Members: Newman, Sara J.
Subjects: American studies; Communication; Health; Labor economics; Labor relations; Literacy; Occupational safety
Keywords: Labor Relations, Workplace; Risk Communication; Occupational Safety; Safety Communication; Enthymemes; Literacy; Rhetoric; Communications Toolkits; Toolkits; topoi
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15.
Cacciapaglia, Holly M.
A STEPPED-CARE APPROACH to SMOKING CESSATION and HARM REDUCTION.
Degree: PhD, Psychology/Clinical, 2006, Bowling Green State University
► Smoking is the most preventable cause of death in the US (American…
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▼ Smoking is the most preventable cause of death in the US (American Cancer Society, 2004). Despite a significant public health need for effective cessation interventions, the efficacy of smoking cessation interventions has declined over the past 15 years (Piasecki and Baker, 2001; Irvin and Brandon, 2000). The purpose of this study was to examine a stepped-care approach to smoking cessation and harm reduction. Stepped-care has been proposed as a promising, yet relatively unexplored approach to smoking cessation (Piasecki and Baker, 2001). In a stepped-care program, participants who are not responding therapeutically to the current level of treatment (i.e. experience significant difficulties or failure) are stepped-up to a more intensive form of treatment. In this study, individual problem solving therapy (PST) was used as the stepped-care component. The participants in this study were 40 smokers from the community. While all participants were engaged in an 8-session cognitive-behavioral group smoking cessation program, half of the participants were eligible to be stepped-up to individual PST when they experienced difficulties meeting their smoking reduction goals. Alternative measures of success (i.e., harm reduction) included progression along the stages of change model as measured by the Stages of Change Algorithm, Processes of Change Inventory, Decisional Balance Inventory, Self-Efficacy/Temptation Inventory, and the Self-Efficacy Questionnaire (SEQ-12), as well as reductions in nicotine exposure and the ability to achieve a 24-hour quit attempts. Results revealed that 56% of all participants were able to quit by the end of the intervention and participants made significant progress along the stages of change as measured by the processes of change and self-efficacy. Participants were also able to achieve significant reductions in nicotine exposure and an increase in 24-hour quit attempts. No significant differences were found between the treatment and control groups or the treatment group participants who received PST (Treatment + PST) and those matched on stepped-care eligibility in the control group (Control + PST eligible). Despite the lack of significant findings, effect size estimates revealed a moderate to large effect size for self-efficacy/temptation, achieving a 24-hour quit attempt, and abstinence in favor of the treatment group. Implications and future directions are discussed.
Advisors/Committee Members: Carels, Robert A.
Subjects: Psychology, Clinical
Keywords: smoking cessation; harm reduction; tobacco; stepped-care; intervention
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16.
CACHO RIVERO, JESUS ANDRES.
ANAEROBIC DIGESTION OF EXCESS MUNICIPAL SLUDGE: OPTIMIZATION FOR INCREASED SOLID DESTRUCTION.
Degree: PhD, Engineering : Environmental Science, 2005, University of Cincinnati
► Anaerobic digestion is an economically viable and environmentally friendly process for the…
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▼ Anaerobic digestion is an economically viable and environmentally friendly process for the reduction of excess municipals sludge. Primary and activated sludge are generated during wastewater treatment. The production of sludge is increasing worldwide and anaerobic digestion presents limitations in terms of solid destruction and long SRT requirements. This study investigates two major aspects of the anaerobic digestion of excess municipal sludge. First the effect of sludge retention time (SRT) on the performance of the anaerobic digestion process was evaluated. Four different SRTs (5, 10, 20 and 40 days) were used in triplicate. The process showed stability and reproducibility throughout the experimental period. Solid destruction was a function of SRT, increasing as the SRT increased. It was modeled as a first order reaction considering the digester as a plug-flow reactor with recycle. The maximum solid destruction achieved in the anaerobic digestion of a mixture of primary and WAS was 55.3% and the first order reaction constant 0.38d-1. The effect of SRT on other effluent quality parameters was also studied. Increasing SRT decreased fecal coliforms density, although only class B biosolids were achieved in all cases. Once the effect of SRT and the limit in solid destruction of anaerobic digestion were determined, the second part of the study investigated a technology that would enhance solid destruction during the anaerobic process. A thermo-oxidative treatment using hydrogen peroxide as oxidant and temperatures below the boiling point of water was evaluated. Several reactor configurations and SRTs were considered as determinant factors in the process performance. Results showed that solid destruction increased as hydrogen peroxide and temperature increased. Higher stability, versatility and effluent quality were observed for the two stage configuration compared to the single stage configuration for the same overall SRT. Increasing SRT increased stability and improved effluent quality. The best cost effective configuration was a two stage configuration with reactors operated at 5 days SRT and thermo-oxidative treatment operated at 90°C and a dosage of 1.0 g H2O2/g VSSinfluent. A VSS removal of 75.7% was achieved with this configuration, which represents a 36.9% increase when compared to the maximum determined for conventional anaerobic digestion of the sludge mixture. This configuration showed eventually complete fecal coliforms removal thus achieving class A biosolids. Anaerobic digestion performance of municipal sludge was significantly enhanced when combined with thermo-oxidative treatment. However this technology can be economically prohibitive due to chemical addition. Further research should take into account a balance between performance enhancement and economic cost.
Advisors/Committee Members: Suidan, Dr. Makram T.
Subjects: Engineering, Environmental
Keywords: Anaerobic Digestion,Excess Municipal Sludge, Thermo-oxidative Treatment, Hydrogen Peroxide
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18.
Caddy, Scott A.
(Mis)appropriating (Con)text: Jane Austen's Mansfield Park in Contemporary Literary Criticism and Film.
Degree: MA, English/Literature, 2009, Bowling Green State University
► In this thesis, the critical tradition of Jane Austen’s novel Mansfield Park…
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▼ In this thesis, the critical tradition of Jane Austen’s novel Mansfield Park (1814), the historical context of the novel, and a contemporary film adaptation are re-examined. The film in question is Patricia Rozema’s 1999 adaptation, entitled Mansfield Park. In Chapter I, the critical tradition of the novel is examined in order to determine what consensus, if anything, scholars have come to in regards to an accepted reading of the novel. By examining this criticism a historical context unique to the novel is uncovered. In Chapter II, Austen’s personal letters and contemporary authors are scrutinized in terms of the debate over abolition at the time. Because most scholars of the novel see slavery as an important or central theme in the novel, the historical context becomes integral to any reading of the novel; it also becomes intrinsic to any adaptation of the novel into film. Chapter III uses the arguments outlined in Chapter’s I and II to re-evaluate Rozema’s Mansfield Park to revitalize and reinterpret the debate over Austen (as an author and person) in regards to any critical tradition of her works. Overall, this thesis examines how the criticism of the novel and/or film has become a battle over who Jane Austen is, was, and what kinds of political sentiments she had. Focus has been taken off the text(s), resulting in a critical tradition more concerned with control over critical readings instead of discourse over meanings and interpretations of Mansfield Park.
Advisors/Committee Members: Lapinksi, Piya.
Subjects: English literature; History; Literature
Keywords: Jane Austen; Mansfield Park; adaptation; Patricia Rozema; film
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19.
Cade, Justin A.
“Frozen Conflict” in Paradise: Origins of the Struggle for Abkhazia.
Degree: MA, Slavic and East European Studies, 2009, Ohio State University
► “’Frozen Conflict’ in Paradise: Origins of the Struggle for Abkhazia” examines the…
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▼ “’Frozen Conflict’ in Paradise: Origins of the Struggle for Abkhazia” examines the question of separatism in Abkhazia, a breakaway republic of Georgia. Paying particular attention to the role of Georgia and Russia in shaping the fate of Abkhazia, this Master’s thesis is concerned with identifying the origins of the now “frozen conflict” which now exists in the autonomous republic, which scholars have described as being in a state of constitutional limbo. In offering an explanation for how a series of diplomatic failures led to the outbreak of war following the fall of the Soviet Union, the thesis places particular emphasis on five critical themes in the history of Abkhazia. They are as follows: demographic shift in the republic; the legitimate, yet conflicting, interests of the Russians, Georgians, and Abkhaz in the republic and how the triangular nature of the relationship between these three parties; competing or overlapping claims to Abkhaz territory; the question of nationalism; and the importance of specific events and personalities. The thesis is divided into five distinct chapters to offer readers a basic background in Abkhaz history and to highlight key events and personalities in the region’s past. The first chapter is concerned with the ancient and pre-Russian history of Abkhazia and Georgia; the second chapter focuses on Transcaucasia under the Russian Empire and Georgia’s brief period of independence from Russia in the early twentieth century; the third chapter is a narrative of the region in the Soviet period; the fourth chapter examines the post-Soviet period and the outbreak and consequences of the 1992-93 war in Abkhazia; and, finally, the fifth chapter follows post-war Abkhaz, Georgian, and Russian relations, culminating in the August 2008 war fought between the Georgians and Russians over South Ossetia.
Advisors/Committee Members: Breyfogle, Nicholas.
Subjects: History
Keywords: Abkhazia; Georgia
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20.
Ca, Diep Vu.
NANOSTRUCTURED ASSEMBLIES FOR SOLID PHASE EXTRACTION OF METAL IONS.
Degree: PhD, Chemistry, 2005, Miami University
► The main goal of our research was to develop nanostructured materials for…
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▼ The main goal of our research was to develop nanostructured materials for i) solid phase extraction of metal ions and ii) electrocatalytic systems. The selective preconcentration of cesium from aqueous solutions containing high concentrations of alkali metals is an important problem in the treatment of radioactive waste. We investigated the use of cobalt hexacyanoferrate (CoHCF) for this purpose. The CoHCF in our work was encapsulated in a silica sol-gel material that is templated to have pores in the nano-domain. A capacity of 0.61 ± 0.01 mmol Cs+ g-1 was achieved for the CoHCF-doped sonogel. The CoHCF silica sol-gels are promising both for the solid phase extraction of Cs+ and for the capture and storage of this cation. For environmental applications, after sorbing Cs+ the glass-like material can be sintered to collapse the pores. We found that silica sol-gel is not only a good hosting material but also a medium for growing crystals and extruding fibers. Here, a sonogel was used to grow CoSO4 and CuSO4 crystals and extrude Prussian Blue-containing fibers. Subsequently, we investigated the use of mixed-ligand monolayer-protected gold nanoclusters (MPCs) with crown ether (CE) and carboxylate functionalities for the preconcentration of cesium from aqueous solution. 18-crown-6 ether was used as a functional group because it has a selective affinity to cesium. Here, the MPCs were used to assemble layer-by-layer (LBL) films on a substrate. The uptake of cesium from solution by these films was monitored by a quartz crystal microbalance. Our general interest was to modify electrode surfaces that can selectively interact with substances ranging from metal ions to biological models. We focused on the former as a surrogate. Thus, the study was developed for a metal ion, Pb2+ which is electrochemically active. In this case, 15-crown-5, which selectively complexes with Pb2+, was used instead of 18-crown-6. The electrostatic LBL films were assembled on gold and indium tin oxide (ITO) electrodes. Trapping Pb2+ within these nanostructured films was demonstrated by voltammetry and quartz crystal microbalance measurements. Metal nanoparticles (NPs) can have different electrocatalytic properties from the corresponding bulk metal under given conditions. A hypothesis of our study was that NP catalysts can be optimized by controlling the distribution of metal NPs on an electrode surface. The oxidation of cysteine and arsenite were the test systems for AuNPs and PtNPs, respectively. Generation-4 poly(amidoamine)-encapsulated Au and Pt nanoparticles were synthesized. The metal-PAMAM NPs were assembled on an ITO electrode. The PAMAM was then decomposed by heating, leaving the NPs on the ITO. The surface excess, gamma, of PAMAM-metal NPs was controlled. The catalytic oxidation of cysteine at the resulting AuNP array was observed. Interestingly, a study of the cyclic voltammetric peak current vs gamma showed that a small amount of metal NPs dispersed on a surface electrode gave high electrocatalytic activities. For example, a mole fraction of Au-PAMAM in the assembled layer of 0.062 yielded the highest sensitivity. Linear calibration curves were obtained over the range 5 uM - 500 uM for cysteine with AuNP catalysts. For AsIII with PtNPs, linearity was observed over the range 0.2 mM – 1.0 mM.
Advisors/Committee Members: Cox, James A.
Subjects: Chemistry, Analytical
Keywords: Nanoparticles; Au; Pt; ITO; LBL; electrochemistry
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21.
Cadle, Lanette.
A Public View of Private Writing: Personal Weblogs and Adolescent Girls.
Degree: PhD, English/Rhetoric and Writing, 2005, Bowling Green State University
► This dissertation examines the public and private nature of personal weblogs written…
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▼ This dissertation examines the public and private nature of personal weblogs written by adolescent girls. During a four-month observation period, the participants continue to post material to their weblogs and the posts during that time are available for examination and analysis. There is also an email interview and an end-of-study questionnaire that lend an inside view to the process. The reflection, collaboration, and mentoring that these blogs enable act as a feminist space as well as a personal one uniquely qualified for investigating identity. At the same time, the intersection of writing, introspection, and digital tools also lends the possibility of answering another feminist goal, that is expressed in AAUW’s Tech Savvy of bringing more girls to the sciences and to make them more comfortable in digital spaces. I propose that identity development and the need for a space that is both public and private may be behind the steady increase proportionately and numerically of adolescent girls in the LiveJournal user base. From April 2004 to April 2005 the increase has been steady, with the female user base rising from 65.2% to 67.3%, the majority of those being between the ages of 15 and 21 as per the statistics on April 30, 2005. This indicates that a need is being filled and provides an important part of the rationale for my study. It is significant also because by sheer numbers, adolescent girls in personal weblogs are making the definition of what acceptable public discourse is more diffuse and inclusive.
Advisors/Committee Members: Blair, Kristine.
Subjects: Language, Rhetoric and Composition
Keywords: weblogs; adolescent girls; personal writing; gender; blogs; feminism; literacy; identity
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24.
Caesar, Ryan Matthew.
Phylogeny of the Genus Argia (Odonata: Coenagrionidae) with Emphasis on Evolution of Reproductive Morphology.
Degree: PhD, Evolution, Ecology and Organismal Biology, 2012, Ohio State University
► The damselfly genus Argia is found throughout the New World where some…
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▼ The damselfly genus Argia is found throughout the New World where some species are common and abundant members of lotic freshwater and adjacent ecosystems. Argia species are not only important predators of aquatic and terrestrial invertebrates but are themselves an important prey item to a variety of other insects and vertebrates. The distribution of species is highly variable within the genus and some species are locally threatened or endangered due to range limitation and habitat loss. Damselflies and dragonflies (Odonata) may be useful indicators of aquatic ecosystem health as well as indicators of climate change. There are approximately 120 species described with at least twenty suspected undescribed species. The taxonomy of the North American species is well known, but the Central and South American species are in need of revision. The phylogeny of the genus has never been studied using modern, repeatable methods. Therefore the evolutionary history of the genus has never been thoroughly explored. The reproductive biology of Odonata is unique among insects and provides a model system for testing hypotheses related to character evolution by sexual selection and other mechanisms of evolution. Argia species have unique morphologies of male and female secondary sexual characters, the modified cerci and paraprocts of males and the corresponding plates of the female pro- and meso-nota that are grasped by males during copulation and oviposition. The patterns of variation in these structures, both within and among species, may reveal the extent to which sexual and natural selection help shape the current diversity of the group. This dissertation presents phylogenetic hypotheses for the genus Argia using data from external morphology and ribosomal DNA. Maximum parsimony and maximum likelihood analyses were performed on the data, resulting in topologies that are mostly congruent, well-resolved, and moderately to highly supported. The variation in male cercus morphology is examined using three dimensional morphometrics where shape is quantified from computer tomography models. The phylogenetic hypotheses are used to examine patterns of cercus variation across the genus. The same methods are applied to populations of the widespread species Argia moesta in an attempt to test whether intrasexual selection applies to these important reproductive structures.
Advisors/Committee Members: Johnson, Norman.
Subjects: Animals; Biology; Entomology; Morphology; Organismal Biology; Zoology
Keywords: Entomology; Insect; Odonata; Zygoptera; Damselfly; Coenagrionidae; Argia; Argia moesta; phylogeny; systematics; sexual selection; evolution; cerci
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25.
Caffrey, Donald A.
Small Offices for a New Age: Downtown Cincinnati.
Degree: M. Arch., Architecture, 2001, Miami University
► The modern world has become one of dualities, of abstracts and of…
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▼ The modern world has become one of dualities, of abstracts and of tangibles. No one development better represents this trend than the Internet. While we shop and browse in a world constructed of ones and zeroes, it creates a physical reality in terms of cash and buildings and trucks and all the things that make businesses. As the physical becomes the virtual, so too does the virtual become the physical. How do we construct this reality? It seems that the physical needs of such a reality will be constantly changing. There will be a need that remains constant though, the need for accurate representation of this abstract. How does this creation of ours, this abstract, translate into reality? A community of small offices in downtown Cincinnati is presented as such an example.
Advisors/Committee Members: Benson, Robert.
Subjects: Architecture
Keywords: SMALL OFFICES; DOWNTOWN CINCINNATI; Recreational research; Court St; Wall Section; OFFICES; accessed
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26.
Caglar, Umut.
Floating Bodies.
Degree: MS, Mathematics, 2010, Case Western Reserve University
► We introduce various concepts of floating bodies, namely Ulam's floating body, Dupin's…
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▼ We introduce various concepts of floating bodies, namely Ulam's floating body, Dupin's floating body, and the convex floating body and we give examples for the different concepts. In particular, we investigate if counterexamples to certain long standing open problems for the one type of bodies can be used for the other. One of the problems is Ulam's problem asking whether spheres are the only solids that can float in equilibrium in every direction. The other one is the homothety problem which asks if a body must be an ellipsoid if it is homothetic to its floating body. While there are partial solutions to these problems, complete solutions still need to be found.
Advisors/Committee Members: Werner, Elisabeth.
Subjects: Mathematics
Keywords: convex floating bodies; Ulam's problem; Homothety conjecture
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27.
Cagley, Laura Marie.
Report on a MTSC Internship at a Medical Device Company.
Degree: Master of Technical and Scientific Communication, English, 2009, Miami University
► This four-chapter report describes the work I completed as a technical writer…
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▼ This four-chapter report describes the work I completed as a technical writer intern at a medical device company during the spring of 2007. It provides an overview of the company organization; an overview of my role and the projects I worked on at the company; a detailed description of an instruction manual I created for a contracted on-site replacement and diagnostic service for a medical testing system as my major writing project; and an analysis of the internship experience that compares the expectations I had from my classroom training in technical communication and the reality of the job functions of a technical writer at a medical device company.
Advisors/Committee Members: Durack, Katherine.
Subjects: Communication
Keywords: MTSC; internship report; project management; technical communication; career progression
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28.
Cahill, Daniel J.
The Role of Transformational Leadership, Vision Communication and Vision Characteristics on the Growth of Dotcoms in the Midwest.
Degree: PhD, Interdisciplinary : Interdisciplinary Studies, 2002, University of Cincinnati
► The present study examines the impact of transformational leadership, management of meaning,…
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▼ The present study examines the impact of transformational leadership, management of meaning, and vision characteristics on the growth of dotcoms. Transformational leadership is a popular leadership theory that describes two opposite dimensions known as transformational and transactional leadership styles (Bass, 1985; Bass and Avolio, 1990). Leadership as the “management of meaning” is an extension of the visionary and transformational leadership literatures and may help explain the intricacies involved in the visioning process. The literature is based on two key assumptions. First, leadership becomes real in the process of framing and defining reality for employees (Smirich and Morgan, 1982). Second, there is a clear distinction between leaders and managers based on presentation of a vision (Zaleznik, 1977; Pondy, 1978; Pfeffer, 1981; Bennis and Nanus, 1985). The literature also suggests that a vision must have seven key characteristics that make it successful. Using startups as a point of reference, dotcom is defined as an organization that is dependent on some form of seed funding or venture capital with up to 150 employees. Generally, the organization has been in business for less than five years and relies heavily on the Internet as a basis for its business model. Dotcoms distinguish themselves by adding “.com” to the name of their business and promote certain cultural elements that distinguish them from a startup, although the specific characteristics of the culture are less clear. The research is driven by three hypotheses that focus on the impact of the three preceding variables on growth. The results show no support for the hypotheses although the interview data does reveal that the role of the CEO and CFO as transformational leaders is evolving. Suggestions for future research are discussed.
Advisors/Committee Members: Fairhurst, Gail T.
Subjects: Business Administration, Management
Keywords: Transformational Leadership; Vision Communication; Vision Characteristics; Dotcoms
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29.
Cahill, Lisa D.
Cortical responses to speech stimuli in hearing impaired infants measured by fMRI and auditory evoked potentials.
Degree: PhD, Allied Health Sciences : Communication Science and Disorders, 2010, University of Cincinnati
► The overall aim of the present research was to perform an exploratory…
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▼ The overall aim of the present research was to perform an exploratory analysis of the relationship between the P1 auditory evoked potential response and residual auditory cortical function as shown by fMRI activation maps in moderate or severe to profoundly hearing impaired subjects. Electrophysiologic and functional neuroimaging evaluations using speech stimuli were conducted on fourteen subjects ages 9-24 months with residual hearing ranging from 85 dBHL to 100 dBHL pure tone average (PTA), in the .5 to 2 KHz range. Electrophysiological testing included evaluation of P1 cortical auditory evoked response with a hearing aid on using a Klatt generated /ba/ stimulus in the soundfield at 75 dBSPL. Subjects unable to wear an amplification device during the testing were stimulated using an Eartone 3A insert earphone at a minimum of 10 dB sensation level based on aided audiometric results. An fMRI paradigm consisting of Narrow Band Noise (NBN) and stories was administered under sedation at the end of a clinical scan in a 3 Tesla system using sound presentation levels of 10 dB sensation level based on audiometric results. Stimuli were interleaved with silence in a block-periodic counterbalanced fMRI design with 30-second on-off intervals. Results were subjected to a correlation analysis to search for a relationship between P1 characteristics and the number of activated fMRI pixels detected within specified regions of interest in the auditory cortex. In addition, a multiple regression analysis was conducted to assess the prediction of the P1 latency in our sample based on duration of hearing aid use and age at the time of the fitting. Results indicated that although fMRI activation patterns do not exhibit a predictive relationship with P1 latency (r(10) = .038, p = .456), the strength of the auditory BOLD response was inversely correlated with P1 amplitude (rS = -.85, p = .001), suggesting more localized regions of cortical responsivity in subjects with robust P1 waveforms. This finding was difficult to interpret in light of fMRI sedation effects, and may be a reflection of normal cortical maturational processes that are known to influence the anatomical generators of the P1 response. Group and individual maps of BOLD activation were markedly dissimilar from what has been observed in normal hearing subjects within the same age range (Smith, et al., 2008). In all subjects, common areas of BOLD activity outside of auditory regions included positive BOLD within the medial frontal gyrus and anterior cingulate cortex, and negative BOLD responses in the inferior frontal gyrus. Areas that were shown to possess a positive correlation with shifts in P1 latency included the left middle frontal gyrus and inferior frontal gyrus, the anterior cingulate, and bilaterally in insular and occipital areas. In order to verify and further characterize a possible inverse connection between neural and vascular activity in thalamocortical and primary auditory cortical regions, more information is needed regarding developmental effects auditory deprivation on P1 amplitude.
Advisors/Committee Members: Keith, Robert.
Subjects: Audiology
Keywords: congenital sensorineural hearing loss; cochlear implants; fMRI; auditory evoked potentials; auditory plasticity
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30.
Cahoy, Dexter Odchigue.
Fractional Poisson Process in Terms of Alpha-Stable Densities.
Degree: PhD, Statistics, 2007, Case Western Reserve University
► The link between fractional Poisson process (fPp) and α-stable density is established…
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▼ The link between fractional Poisson process (fPp) and α-stable density is established by solving an integral equation. The result is then used to study the properties of fPp such as asymptotical n-th arrival time, number of events distributions, covariance structure, stationarity and dependence of increments, self-similarity, and intermittency property. Asymptotically normal parameter estimators and their variants are derived; their properties are studied and compared using synthetic data. An alternative fPp model is also proposed.Finally, the asymptotic distribution of a scaled fPp random variable is shown to be free of some parameters; formulae for integer-order, non-central moments are also derived.
Advisors/Committee Members: Woyczynski, Wojbor A.
Subjects: Statistics
Keywords: fPp; Nν; POISSON PROCESS
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