Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"Models, Structural"”.
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Unstable Consumer Learning Models: Structural Estimation and Experimental Examination
… learning model. This model expands on existing models that explore learning when quality is stable, by considering when quality is changing. Further, the dissertation examines situations in which consumers may act as if quality is changing when it is stable or vice versa. This examination …
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The Mind as a Predictive Modelling Engine: Generative Models, Structural Similarity, and Mental Representation
… of mental representation in terms of idealised models that capitalize on structural similarity to their targets; second, an appreciation of prediction as the core function of such models; and third, a regulatory understanding of brain function. I clarify and elaborate on each of these ideas, …
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Multiphysics computational modeling of implantable actuable devices for local epicardial therapy delivery
… In this thesis, we used different computational models (structural, drug diffusion, and fluid-structure interaction) to characterize the therapeutic effect of these two devices on the heart.
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Structural Modes in Proteins: A Case Study in the PDZ Domain
… and cooperatively. These residues create structural modes that are present in the both free and peptide-bound PDZ3 and include many residues important for peptide-binding, suggesting that these structural modes are organized for the purpose of protein function. Furthermore, structural …
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Automated Social Science: Language Models as Scientist and Subjects
… possible by recent advances in large language models (LLM), but the key feature of the approach is the use of structural causal models. Structural causal models provide a language to state hypotheses, a blueprint for constructing LLM-based agents, an experimental design, and a plan for data …
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E-commerce success : an empirical validation and test of alternative models
… Existing IS success and e-commerce success models and concepts are reviewed and evaluated, gaps in the existing literature are identified, and a new comprehensive conceptual model is formulated. 180 respondents, reflective of the prevalent e-commerce customer profile in South Africa, were …
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Economic development with finance: studies of emerging economies
… can be briefly presented as: Theoretical Models, Structural Breaks for NICs of Asia, Causations in Steady State and Dynamic Process in NICs of Asia, and Studies with Countries’ Sizes in BICS1. For different groups of countries in the developing world, it is necessary to mention a fact for …
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Optimization Methods for Machine Learning under Structural Constraints
In modern statistical and machine learning models, structural constraints are usually imposed for model interpretability as well as model complexity reduction. In this thesis, we present scalable optimization methods for several large-scale machine learning problems under structural constraints, …
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A case study of Tracie Morris's Project Princess
… to interpret the data using four interpretative models: structural analysis, thematic analysis, dialogic/performance analysis, and visual analysis. The findings revealed that intertextuality in Tracie Morris’s spoken word poem Project Princess emerged as non-chronological storytelling, language …
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An ecological approach on the role of nondisclosure in urban African American youth exposed to community violence: using mediation and moderated mediation approaches
… by adolescents. This study tested conceptual models in which adolescents' nondisclosure to adults mediates the relation between community exposure to violence (CETV) and internalizing and externalizing symptoms. In addition, moderated mediation analysis were conducted in order to test the …
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The waning of the two giants: the electoral decline of the Italian Christian Democratic Party and the Italian Communist Party
… within an analytical framework that consists of models explaining electoral change in advanced industrial democracies and in Italy. A review of the literature on electoral change in Italy reveals three basic models: structural (socioeconomic and demographic factors), subcultural (the decline of …
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Essays on the macroeconomics of economic development
… evidence for this mechanism and estimate the models' structural parameters. In chapter 2, I study the interaction between migration and firms' technology choices. If firms can adapt their production technology, changes in labor supply will induce biased technological adoption. I test this …
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Essays on the dynamics of qualitative aspects of firms' behavior
… econometric aspects of firms' exit decisions. Structural econometric analyses of exit decisions of firms involve rather naturally a number of qualitative dimensions. This chapter investigates the exit decision empirically by means of panel data from COMPUSTAT for U.S. manufacturing firms which …
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Veterans of the 1st Persian Gulf War: A Study of Medically Unexplained Symptom Models
… Sensitivity, and Somatoform Disorders. Utilizing structural equation modeling and data gathered from the Gulf War Veterans Health Questionnaire, this study attempted to determine whether symptoms experienced by veterans were best explained as individual items, discrete illnesses, or as a …
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Stochastic Ground Motion Models for Uncertainty Quantification in Earthquake Engineering
… uncertainties among seismic hazard inputs, structural models (e.g., finite element models), structural responses, and the resulting performance metrics. This thesis primarily focuses on the probabilistic modeling of seismic inputs, specifically constructing stochastic ground motion models …
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Applications of a three-body potential model and crystal field calculations to the simulation of EU³⁺, Er³⁺ and Yb³⁺ environments in PbO.SiO₂ glass
… using both two- and three-body potential models. Structural features of the simulations of undoped PbO·SiO 2 glass were found to be in excellent agreement with published experimental results, and the three-body potential model produced a marked improvement over the two-body potential …
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Vegetation colonization within exposed reservoirs following dam removal on the Elwha River, Washington
… and conducted a Wolman Pebble Count. I used a structural equation models to show how environmental factors related to hydrology, soil nutrients, and dispersal distance affect species diversity and cover. I compared environmental factors and vegetation responses among the two reservoirs using …
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Job embeddedness versus traditional models of voluntary turnover: A test of voluntary turnover prediction.
… a problem for today's organizations. Traditional models of turnover continue to be utilized in a number of ways in both academia and industry. A newer model of turnover, job embeddedness, has recently been developed in an attempt to better predict voluntary turnover than existing models. Job …
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Probabilistic and Statistical Learning Models for Error Modeling and Uncertainty Quantification
… phenomena. However, even advanced numerical models can only approximate the true physics. The discrepancy between model results and nature can be attributed to different sources of uncertainty including the parameters of the model, input data, or some missing physics that is not included in …
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Computational Modeling of Rna-Small Molecule and Rna-Protein Interactions
… Thus, we implemented novel computational models in this dissertation to predict RNA-ligand interactions (Chapter 1) and RNA-protein interactions (Chapter 2).</p> <p>Targeting RNA has not garnered comparable interest as protein, and is restricted by lack of computational tools for …
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