Search for dissertations about: "cluster poisson"

Showing result 1 - 5 of 8 swedish dissertations containing the words cluster poisson.

  2. 1. Functional clustering methods and marital fertility modelling

    Author : Per Arnqvist; Sara Sjöstedt de Luna; Leif Nilsson; Helle Sørensen; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; censoring; Coale-Trussell model; EM-algorithm; functional data analysis; functional clustering; marital fertility; normal approximation; Poisson process; varved lake sediments; warping; Mathematical Statistics; matematisk statistik;

    Abstract : This thesis consists of two parts.The first part considers further development of a model used for marital fertility, the Coale-Trussell's fertility model, which is based on age-specific fertility rates. A new model is suggested using individual fertility data and a waiting time after pregnancies. READ MORE

  4. 2. Geometrical and percolative properties of spatially correlated models

    Author : Olof Elias; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; continuum percolation; brownian excursions; brownian interlacements; poisson cylinder model; fractal percolation;

    Abstract : This thesis consists of four papers dealing with phase transitions in various models of continuum percolation. These models exhibit complicated dependencies and are generated by different Poisson processes. For each such process there is a parameter, known as the intensity, governing its behavior. READ MORE

  5. 3. Pain patterns in early rheumatoid arthritis

    Author : Joakim Lindqvist; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Study I: Widespread non-joint pain in early rheumatoid arthritis. Objective: The aim of the study was to assess the development of widespread non-joint pain (WNP) in a cohort of patients with early rheumatoid arthritis (RA), the associated health-related quality of life (HRQoL), and clinical and demographical risk factors for WNP. READ MORE

  6. 4. Single-Molecule Detection and Optical Scanning in Miniaturized Formats

    Author : Jonas Melin; Fredrik Nikolajeff; Mats Nilsson; Hugh Fan; Uppsala universitet; []
    Keywords : Biotechnology; microfluidics; single-molecule detection; MOEMS; μTAS; lab-on-a-chip; RCA; thermoplastics; injection molding; hot embossing; Bioteknik;

    Abstract : In later years polymer replication techniques have become a frequently employed fabrication method for microfluidic and micro-optical devices. This thesis describes applications and further developments of microstructures replicated in polymer materials. READ MORE

  7. 5. A multi-faceted approach to a "dark taxon" : The hyperdiverse and poorly known scuttle flies (Diptera: Phoridae)

    Author : Emily Hartop; Fredrik Ronquist; Torbjørn Ekrem; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; biodiversity; taxonomy; dark taxa; Systematic Zoology; zoologisk systematik och evolutionsforskning;

    Abstract : Most of the unknown animal biodiversity on earth is in groups of invertebrates that are hyperdiverse and abundant, yet poorly known (“dark taxa”). The study of these organisms requires a multi-faceted approach and methodologies designed to tackle large numbers of species and specimens. READ MORE