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 98 for “"complex model"”.
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Using a complex model of sequence evolution to evaluate and improve phylogenetic methods
… generated on a variety of tree shapes under a complex model of sequence evolution based on the work of Aaron Halpern and William Bruno. Parameters of the model were estimated by maximum likelihood techniques applied to a phylogeny of 1,610 sequences of mammalian cytochrome b genes. These …
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Kinematics of The Human Shoulder Complex: Model Registration, X Ray Videoradiography and Soft Tissue Artefacts
The shoulder complex is an intricate joint system of the human body that provides support and movement for the upper limb. It consists of four uniquely shaped bones that are responsible for three different articulations. An in-depth knowledge of shoulder motion would help clinicians, biomechanics …
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Exploring A Complex Model Of Student Engagement In Middle School: Academic Self-Efficacy Beliefs And Achievement
… of the study did not support the hypothesized model. However, academic-self efficacy was found to be related to student engagement and previous and current achievement. Further, previous achievement was a significant predictor of current achievement.</p>
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A Comparison of Risk Assessment Models for Pipe Replacement and Rehabilitation in a Water Distribution System
… municipalities to utilize a risk assessment model to identify the most critical components of the system and develop an effective rehabilitation or replacement schedule.</p> <p>This study compared two risk assessment models, a statistically complex model and a simplified model. Based on the …
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A Comparison of Water Main Failure Prediction Models in San Luis Obispo, CA
… four different water main failure prediction models: a statistically simple model, a statistically complex model, a statistically complex model with modifications termed the 2019 model, and an age-based model. The statistically complex models compute the probability of failure based on age, …
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The synthesis and characterization of some manganese (II) Schiff base complexes and their oxygenation products
… of this thesis is to examine a potential Mn(II) complex model system and its corresponding oxygenated products. The Schiff base ligands chosen for this study (Figure 3) were of the type believed to be in, the environment of manganese as it exists in the photosynthetic process. The ligand systems …
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Developing an evidence-based system to facilitate the predictive assessment and optimisation of older adults with cancer
… OGA; v) the development and analysis of a complex model of an oncogeriatric population using machine learning.Results: A whole system approach is required to improve the implementation of OGA in cancer settings, including utilisation of technology, leveraging non-specialist staff skills and …
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Model Abstraction in Dynamical Systems: Application to Mobile Robot Control
To reduce complexity of system analysis and control design, simplified models that capture the behavior of interest in the original system can be obtained. These simplified models, called abstractions, can be analyzed more easily than the original complex model. Hierarchies of consistent …
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The Longitudinal Relationship Between Competence and Psychopathology Over the Transition from Childhood to Adolescence to Young Adulthood
… univariate analyses and Structural Equation Modeling. These theories included: 1) the Failure Model, which posits that early deficits in competence lead to later emotional and behavior problems, 2) the Disability Model, which posits that early emotional and behavior problems lead to later …
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Precision control of continuous microcontact printing
… over displacement control. Analytical dynamic models of the system are developed, iterated, and verified experimentally. Initially, a simple model consisting of two separable single-input, single-output (SISO) systems was developed, but this model was shown to fail to capture relevant dynamics. …
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Statistical system identification of structures with flexible joints
… of car bodies. Two generic, 3-D, design-oriented models (simple and complex) are developed to represent the compliant behavior of multibranch flexible joints. The simple model consists of torsional springs restraining the relative rotation of the joint branches in the three planes, while all …
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Optimal Control of the Cheetah During Rapid Manoeuvres
… but current approaches which handle the full complexity of poorly understood manoeuvres are slow. The lack of data means that there are no simulated models of cheetahs known to be representative of dynamic movements such as acceleration and turning. In this project, a modelling change is …
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Investigating the Relation between Empathy and Prosocial Behavior: An Emotion Regulation Framework
Little is known about the complex processes leading to prosocial behavior. However, theories suggests that empathy, empathic responding, and emotion regulation abilities, may all contribute to the presence or absence of prosocial behavior. While theoretical papers demonstrate relationships between …
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Design and Analysis of a Novel Wave Energy Converter With a Tension Leg Platform and Oscillating Proof Masses
… to only oscillate in the direction of surge. Complex hydrodynamic forces caused by ocean waves will excite the system and the surge motion of the proof mass relative to the tension leg platform will generate power via the electromagnetic power takeoff mechanism. First a model of the system …
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Exploring the Implications of Community Mural Arts: A Case Analysis of a 'Groundswell' Mural Project
… interviews and documents analysis to explore the complex model the nonprofit employs to create a collaborative and community-based art process for youth, while also developing a product that can both spark conversation and reflect resident's experiences. Overall the nonprofit's mural making …
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Linking Hydrological Processes With Water Resource Insights Through Synthesis of Big Data and Physics-Based Modeling
… approaches to condense massive datasets and complex model results into actionable insights that can inform best practices for the protection and utilization of valuable mountain water resources.
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A zonally and annually averaged study of potential early Martian atmospheres
… one-dimensional, radiative-convective climate models capable of considering only a single solar zenith angle, typically chosen to represent a global and annual average. Such models are hence not well suited for considering meridional variations in the temperature profile, which are affected by …
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1. X-ray crystallographic analyses of the gene V protein from Ff bacteriophage, a single-stranded DNA-binding protein, and its Y41 mutants 2. X-ray crystallographic analyses of several anticancer drugs and their interactions with DNA
… of DNAs, proteins, drugs, as well as their complexes with each other. Gene V protein (GVP) encoded by the filamentous bacteriophage Ff (M13, f1, fd) is a single-stranded DNA (ssDNA) binding protein which binds to ssDNA non-specifically and cooperatively. The structure of the wild-type …
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