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.
Results
Showing 1 to 20 of 34 for “"Biology, Biostatistics"”.
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Imputation of data missing due to truncation: Maximum likelihood estimates using symmetry property.
Imputation of data missing due to truncation: Maximum likelihood estimates using symmetry property.
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Exploration of Microbial Genomic Sequences via Comparative Analysis
This work presents three new applications of comparative sequence analysis. (1) CRITICA (Coding Region Identification Tool Invoking Comparative Analysis) is a suite of programs for identifying likely protein coding sequences in prokaryotic DNA by combining comparative analysis of DNA sequences with …
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Geostatistical Structural Analysis: Exploring, Fitting and Testing Semivariograms
In conclusion, interactive tools and two alternative techniques (median polish with grid rotation and nonnested hypotheses tests) are available to researchers doing geostatistical structural analysis.
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Population Forecasts and Management Considerations for Gray Wolves in North Central Wisconsin (2002--2040)
Since the mid-to-late 1970s, gray wolves (Canis lupus) have been recolonizing northern Wisconsin. Human population and human-induced land use change activities have also increased during this time. Despite isolated incidents of illegal hunting and livestock depredation by wolves, both species have …
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Application of the Statistical Energy Landscape Theory to Protein Structure Prediction
There has been an exponential increase in sequence information over the past few years due mostly to the large scale genome projects. The corresponding structural information, however, is being determined at a much slower rate. Consequently, the sequence to structure gap is still growing. Many …
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Mathematical Modeling for Hatchability of Chicken Eggs
Assessment of the probability for failure to hatch, due to either infertility or embryonic mortality during incubation, is important to evaluate reproductive efficiency in poultry. The main objective of this thesis, therefore, was to develop or improve mathematical models that describe …
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The Interaction of Equol and Genistein on Estrogen Dependent Tumors and Bones in Ovariectomized Athymic Nude Mice
Experiments were conducted to evaluate the possible effects of dietary equol, one of the metabolites of daidzein, with and without genistein on human estrogen dependent tumor growth and bone development in ovariectomized athymic nude mice. In the first study, the experiments were conducted to …
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Uncertainty in Ecological Simulation Modeling: Applications to Conservation of Endangered Species and Forest Growth
Finally, a framework is proposed to employ process models in hypothesis testing of ecological scenarios when external entities either interact or do not interact with treatment entities. The analysis of the effect of acidic deposition on the site index of a red pine stand is employed to illustrate …
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A Unifying Framework for the Analysis of Continuous and Discontinuous Change
This thesis develops a new modeling framework, called generalized latent change modeling, as a unifying approach to investigate diverse patterns of change from a stage-sequential perspective. Whereas stage theories were originally proposed to describe discontinuous characteristics of human …
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Studies on Estimation of Genetic Variances Under Nonadditive Gene Action
The main objectives of this study were: (1) to derive a computationally efficient method for inverting a large additive x additive relationship matrix without using conventional matrix inversion, and (2) to develop and evaluate methods for estimating additive, dominance and additive x additive …
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Synthetic State Estimates of Work Disability
Made available in DSpace on 2014-12-11T18:00:13Z (GMT). No. of bitstreams: 1 7511737.pdf: 9919225 bytes, checksum: 1bcfd9a3dee1517fda3e665dc08d5cc0 (MD5) Previous issue date: 1974
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Distribution of Estimates of Heritability and Genetic Correlation Derivedfrom Random Samples From a Large Population of Hir Records
Made available in DSpace on 2014-12-10T17:37:55Z (GMT). No. of bitstreams: 1 6915350.pdf: 2539722 bytes, checksum: 67849d0b213a60ec9c2617cec99d1507 (MD5) Previous issue date: 1969
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A Contribution to the Statistical Genetics of the Production of Milk and Its Proximate Constituents by Purebred and Crossbred Dairy Cattle
Made available in DSpace on 2014-12-09T14:29:04Z (GMT). No. of bitstreams: 1 6915270.pdf: 1930915 bytes, checksum: d0ac110293806dacb91037015169f7ba (MD5) Previous issue date: 1969
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Morphometric approaches to systematics and microevolution: Applications from paleozoic bryozoa
… paleontologic contribution to evolutionary biology. Paleomicroevolutionary studies require accurate stratigraphic resolution over a large geographic area, through changing environments, over a sustained period of time, with an abundant, complex, eurytopic fossil group. The combination of …
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Contributions to classification and calibration with high-dimensional data
Statistical classification and calibration with high-dimensional data are studied. We have proposed new classification and calibration procedures for high-dimensional data and have established dimensional consistency for certain high-dimensional classification and calibration procedures. Strong …
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Estimation in random field models for noisy spatial data
"The random field model has been applied to model spatial heterogeneity for spatial data in many applications. The purpose of this dissertation is to explore statistical properties of noisy spatial data through estimation of the Gaussian random field. Large sample properties of the Maximum …
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Topics on animal model evaluations with an application to somatic cell score in dairy cattle
A block-band system of mixed model equations was proposed for the animal model with multiple genetic factors. The block-band system places non-zero submatrices of the coefficient matrix on the diagonal band, and has only two non-zero submatrices on the right hand side of the mixed model equations. …
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Multivariate time series clustering using kernel variant multi-way principal component analysis
Clustering multivariate time series data has been a challenging task for researchers since data has multiple dimensions to consider such as auto-correlations and cross-correlations whereas multivariate time series data has been prevailing in diverse areas for decades. However, for a short-period …
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Modeling evolution of protein coding DNA sequences
We develop a new class of computationally feasible stochastic models for statistical analysis of genetic sequence evolution and inference of properties of the underlying substitution processes in the context of maximum likelihood framework. Existing models for evolution of protein coding sequences …
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Characterizing complex time-series from the scaling of prediction error
This thesis concerns characterizing complex time series from the scaling of prediction error. We use the global modeling technique of radial basis function approximation to build models from a state-space reconstruction of a time series that otherwise appears complicated or random (i.e. aperiodic, …
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