Search for dissertations about: "Johan Lindström"

Showing result 1 - 5 of 8 swedish dissertations containing the words Johan Lindström.

  2. 1. Spatio-Temporal Estimation for Mixture Models and Gaussian Markov Random Fields - Applications to Video Analysis and Environmental Modelling

    Author : Johan Lindström; Matematisk statistik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; vegetation; time series analysis; video segmentation; spatio-temporal modelling; precipitation; Markov chain Monte Carlo; Gaussian Markov random fields; expectation maximisation; change point detection; Bayesian recursive estimation; African Sahel; adaptive Gaussian mixtures;

    Abstract : In this thesis computationally intensive methods are used to estimate models and to make inference for large, spatio-temporal data sets. The thesis is divided into two parts: the first two papers are concerned with video analysis, while the last three papers model and investigate environmental data from the Sahel area in northern Africa. READ MORE

  4. 2. Alphaherpesvirus infections of the central nervous system – Biomarkers, diagnostics and antiviral therapy

    Author : Johan Lindström; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; herpesviruses; central nervous system; facial paralysis; cerebrospinal fluid; biomarkers; acyclovir; neurotoxicity; syndromic testing;

    Abstract : Abstract Herpesviruses predate the evolution of humans and are globally ubiquitous. Herpes simplex virus type 1 (HSV-1), herpes simplex virus type 2 (HSV-2), and varicella-zoster virus (VZV) establish latency in neuronal tissue and may cause infections in the central nervous system (CNS). READ MORE

  5. 3. Distribution and Differences : Stratification and the System of Reproduction in a Swedish Peasant Community 1620-1820

    Author : Jonas Lindström; Maria Ågren; Jan Lindegren; Carl-Johan Gadd; Uppsala universitet; []
    Keywords : HUMANIORA; HUMANITIES; Peasant; stratification; inequality; reproduction; resources; distribution; social mobility; household; family; community; landholding; principles; conditions; social structure; feudalism; early modern period; Björskog; Sweden; agrarian history; social history; History; Historia;

    Abstract : This dissertation examines the character, conditions and change of peasant stratification in early modern Sweden. Wherever and whenever one looks, one finds that resources were unevenly spread among peasant households. In the literature, there are different, and conflicting, views compatible with this finding. READ MORE

  6. 4. Prognostic Factors in First-Episode Schizophrenia : Five-year Outcome of Symptoms, Function and Obesity

    Author : Robert Bodén; Johan Sundström; Leif Lindström; Lena Flyckt; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; First-episode; psychosis; schizophrenia; community mental health services; remission; functional outcome; biochemistry; obesity; weight-gain; prediction; autonomic balance; electrocardiography; Psychiatry; Psykiatri; Psychiatry; Psykiatri;

    Abstract : Our knowledge of prognostic factors and optimal treatment organisation in schizophrenia is incomplete. The disparity of outcome measures used has been a major obstacle for research. Increasing evidence has shown that schizophrenia is associated with increased cardiovascular mortality, development of obesity and autonomic nervous system imbalance. READ MORE

  7. 5. Towards a flexible statistical modelling by latent factors for evaluation of simulated responses to climate forcings

    Author : Ekaterina Fetisova; Gudrun Brattström; Anders Moberg; Rolf Sundberg; Johan Lindström; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Confirmatory Factor Analysis; Measurement Error models; Structural Equation models; Wald confidence interval; Fieller confidence set; Climate model simulations; Climate forcings; Climate proxy data; Detection and Attribution; Mathematical Statistics; matematisk statistik;

    Abstract : In this thesis, using the principles of confirmatory factor analysis (CFA) and the cause-effect concept associated with structural equation modelling (SEM), a new flexible statistical framework for evaluation of climate model simulations against observational data is suggested. The design of the framework also makes it possible to investigate the magnitude of the influence of different forcings on the temperature as well as to investigate a general causal latent structure of temperature data. READ MORE