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 57 for “"multivariate statistical analysis"”.
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Multivariate Statistical Analysis In Single Cell Transcriptomics
… 3, we summarize a framework for comparing a multivariate distribution across k groups, and thereafter describe scenarios where this graph-based test allows us to compare the distribution of gene sets, corresponding to a biological pathway or function, across a set of closely related cell …
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Multivariate Statistical Analysis of Three Crania Housed at the University of Montana Physical Anthropology Lab
… of Montana Physical Anthropology Lab, using multivariate statistical analyses. A database collected by Dr. Hanihara and another collected by researchers at the University of Michigan were used for comparative purposes. Multiple populations from both databases were chosen so as to be …
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Multivariate Statistical Analysis of Three Crania Housed at the University of Montana Physical Anthropology Lab
… of Montana Physical Anthropology Lab, using multivariate statistical analyses. A database collected by Dr. Hanihara and another collected by researchers at the University of Michigan were used for comparative purposes. Multiple populations from both databases were chosen so as to be …
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Transforming an especially challenging urban school against the odds: a multivariate statistical analysis of student perceptions
… strategy was used to identify underlying statistically derived factors within a post-positivist paradigm In phase I, Principle Components Analysis was used to reduce an initial 90-item questionnaire, administered to 302 students, to identify a three factor multilevel school improvement …
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Chemical Differentiation of Human Osseous, Non-human Osseous, and Non-osseous Materials Using Scanning Electron Microscopy - Energy Dispersive X-ray Spectrometry (SEM/EDX) and Multivariate Statistical Analysis
… such as biological, histological, or chemical analysis, must be utilized. Recently, chemical methods have been proposed to sort unknown materials according to their Ca/P ratios. Ubelaker and colleagues (2002) proposed using SEM/EDX to achieve this distinction and Christensen and colleagues …
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Composite Structure Ultimate Strength Prediction from Acoustic Emission Amplitude Data
… This thesis demonstrates how the qualitative analysis of AE data can be refined to provide a quantitative tool for predicting the ultimate strength of composite tensile test specimens. From an original sample set of only six specimens, a multivariate statistical analysis was used to generate …
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Burst Pressure Prediction of Filament Wound Composite Pressure Vessels Using Acoustic Emission
… their burst pressures significantly.</p> <p>Both multivariate statistical analysis and artificial neural networks were used to generate burst pressure prediction models from the AE amplitude distribution data. For the multivariate statistical analysis, fixed failure mechanism bands were applied to …
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Ultimate Strength Prediction in Fiberglass/Epoxy Beams Subjected to Three-Point Bending Using Acoustic Emission and Neural Networks
… to 3-point bending using a neural network analysis of acoustic emission (AE) amplitude distribution data. Fifteen unidirectional fiberglass/epoxy beams were loaded to failure in a 3-point bend test fixture in an MTS load frame. Acoustic emission data were recorded from the onset of loading …
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Experimental Analysis of Parameters Influencing the Bone Burring Process
… sawbone analog through use of a fully balanced multivariate statistical analysis. A smaller set of optimal and suboptimal parameters were further validated using a porcine femur. From the parameters tested, an optimal tool configuration, to avoid high temperature and high vibration, was found to …
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On testing for a difference in two high-dimensional mean vectors.
A common problem in multivariate statistical analysis involves testing for differences in the mean vectors from two populations with equal covariance matrices.This problem is considered well-posed when the sum of the two sample sizes is greater than the data dimension and, therefore, the …
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Reguläre bakterielle Zellhüllenproteine als biomolekulares Templat
… holography, scanning force microscopy, image analysis, and image processing. Preferred cluster-deposition sites are determined by correlation averaging. A more precise determination and quantification is obtained by Multivariate Statistical Analysis. Furthermore a method for the electron beam …
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An analysis of close seam interaction problems in the Appalachian coal fields
… both theoretical and empirical analyses, using statistical analysis, numerical modeling, and photoelastic modeling methods in conjunction with the analysis of numerous case studies, a comprehensive, integrated model has been constructed and represented by a computer program called "MSEAM”. Using …
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Analysis of the composition of latent fingermarks by spectroscopic imaging techniques.
… MALDI mass spectrometry profiling followed by multivariate statistical analysis in an attempt to differentiate donors based on their sex.Chemical imaging of latent fingermarks by SERS and ATR-FTIR is also demonstrated, which could potentially lead to a three step multi-informative analytical …
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Processes and community structure in microbial biofilms of the River Elbe: relation to nutrient dynamics and particulate organic matter
… in situ hybridization (FISH) technique. Multivariate statistical analysis was performed on the FISH data at different spatial and phylogenetic scales.
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Estimation Of The Scale Matrix Of A Multivariate T-model
The classical theory of Multivariate Statistical Analysis is primarily based on the multivariate normal model. However, in the recent literature several authors have made studies as to how the conclusions will be affected if the population model departs from normality. The class of elliptical …
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Performance measurement of English public sport facilities: aggregate analysis and its practicability
… aggregate performance analyses data envelopment analysis (DEA) and multivariate statistical analysis (MSA) are conducted to provide an insight into the industry's overall performance. Second, based on the two approaches above, an aggregate performance analysis framework is developed and tested at …
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Health care access of Hispanic immigrants in the Kansas City Metropolitan Area
… of age and gender were also included in this analysis because they affect any individual’s likelihood to access health care in the United States. Data for this project was taken from the 2012 Hispanic Needs Assessment Community Survey, conducted for the Kansas City Metropolitan Area in 2012. …
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Impact of Preschool Education on the Academic Achievement of Low Socio-Economic Status Elementary Students
… pre-k 4 program and those who did not attend. A multivariate statistical analysis was completed to determine if there was a significant difference between the standardize math and reading scores of the two groups across 3rd, 4th, and 5th grades. Also during the analysis, socioeconomic status was …
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State intervention and control of insurance business in Nigeria
… of the data, some parts of the study utilise a multivariate statistical analysis while some other employ a probabilistic model.
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Variation in chemical components of aquacultured Ulva (Chlorophyta) in response to environmental variables
… cultured Ulva using ¹H NMR spectroscopy and multivariate statistical analysis. Ulva armoricana was cultured at different salinities: 5, 10, 20, 25 and 35 ‰ (all ± 0.1 ‰) and nutrient treatments: 100 % Provasoli ES medium (high nutrient supply) and 0 % Provasoli ES medium (low nutrient supply) …
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