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Full-Text Articles in Physical Sciences and Mathematics
Probabilistic Graphical Modeling On Big Data, Ming-Hua Chung
Probabilistic Graphical Modeling On Big Data, Ming-Hua Chung
Graduate Theses and Dissertations
The rise of Big Data in recent years brings many challenges to modern statistical analysis and modeling. In toxicogenomics, the advancement of high-throughput screening technologies facilitates the generation of massive amount of biological data, a big data phenomena in biomedical science. Yet, researchers still heavily rely on key word search and/or literature review to navigate the databases and analyses are often done in rather small-scale. As a result, the rich information of a database has not been fully utilized, particularly for the information embedded in the interactive nature between data points that are largely ignored and buried. For the past …
Calorimetry And Body Composition Research In Broilers And Broiler Breeders, Justina Victoria Caldas Cueva
Calorimetry And Body Composition Research In Broilers And Broiler Breeders, Justina Victoria Caldas Cueva
Graduate Theses and Dissertations
Indirect calorimetry to study heat production (HP) and dual energy X-ray absorptiometry (DEXA) for body composition (BC) are powerful techniques to study the dynamics of energy and protein utilization in poultry. The first two chapters present the BC (dry matter, lean, protein, and fat, bone mineral, calcium and phosphorus) of modern broilers from 1 – 60 d of age analyzed by chemical analysis and DEXA. DEXA has been validated for precision, standardized for position, and equations and validations developed for chickens under two different feeding levels. These equations are unique to the machine and software in use. Research in broilers …
Analytical Comparison Of Contrasting Approaches To Estimating Competing Risks Models, Brian Stephen Rickard
Analytical Comparison Of Contrasting Approaches To Estimating Competing Risks Models, Brian Stephen Rickard
Graduate Theses and Dissertations
Survival analysis is a commonly used tool in many fields but has seen little use in education research despite a common number of research questions for which it is well suited. Researchers often use logistic regression instead; however, this omits useful information. In research on retention and graduation for example, the timing of the event is an important piece of information omitted when using logistic regression. A simulation study was conducted to evaluate four methods of analyzing competing risks survival data, Cox proportional hazards regression, Weibull regression, Fine and Gray's Method, and Cox proportional hazards regression with frailty. College student …