Search for dissertations about: "Yang Jin"

Found 3 swedish dissertations containing the words Yang Jin.

2. 1. The Cross-Talk between GABA Signalling and Metabolic Hormones in the Brain and Pancreatic Islets

   Author : Yang Jin; Bryndis Birnir; Vidar Gundersen; Uppsala universitet; []
   Keywords : ;

   Abstract : GABA is a well-known neurotransmitter that can be synthesized in the central nervous system (CNS) and, interestingly, also in pancreatic islets. Once released, GABA activates GABA-A channels tonically or transiently resulting in different physiological functions. READ MORE

4. 2. Essays on Estimation Methods for Factor Models and Structural Equation Models

   Author : Shaobo Jin; Fan Yang-Wallentin; Rolf Larsson; Li Cai; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; shrinkage; factor rotation; penalized maximum likelihood; pseudo-maximum likelihood; multi-group analysis; ordinal data; robustness; Statistics; Statistik;

   Abstract : This thesis which consists of four papers is concerned with estimation methods in factor analysis and structural equation models. New estimation methods are proposed and investigated.In paper I an approximation of the penalized maximum likelihood (ML) is introduced to fit an exploratory factor analysis model. READ MORE

5. 3. Estimation of Nonlinear Latent Variable and Mixture Models

   Author : Johan Vegelius; Shaobo Jin; Fan Yang-Wallentin; Melanie Wall; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; structural equation modeling; semiparametric; EM algorithm; adaptive Gauss-Hermite quadrature approximation; Laplace approximation; zero inflation; Statistics; Statistik;

   Abstract : In this thesis methods are developed for estimation of latent variable models. In particular nonlinear structural equation models are estimated in the presence of ordinal data and mixture models for count data. READ MORE