Sökning: "de andre"

Visar resultat 1 - 5 av 103 avhandlingar innehållade orden de andre.

  1. 1. Traitement automatique d'un dictionnaire de synonymes : étude de sa structure : méthode de contrôle et de perfectionnement

    Författare :André Kahlmann; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES;

    Sammanfattning : .... LÄS MER

  3. 2. Occurrence and ecotoxicity of endocrine disruptor chemicals in aquatic environment and sewage treatment systems

    Författare :Andre Luis de Sa Salomao; Marcia Marques; Paulo Sergio Martins Carvalho; Linnéuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Endocrine disruption; Alkali-labile phosphate; Estrogen hormones; Oreochromis niloticus; Unicellular green microalgae; Additive effect; Less-than additive effect; Chronic toxicity; Natural Science; Naturvetenskap;

    Sammanfattning : The applicability of one selected method for indirect measurement of vitellogenin (Vtg) in fish plasma based on the quantification of alkali-labile phosphates (ALP method) to assess estrogenicity in water was investigated. The ALP method applied in this investigation was originally developed with Carassius carassius (Crucian carps). LÄS MER

  4. 3. Numerical analysis and simulation of stochastic partial differential equations with white noise dispersion

    Författare :André Berg; David Cohen; Per Åhag; Guillaume Dujardin; Ludovic Goudenège; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stochastic partial differential equation; mathematics; numerical analysis; numerical scheme; time integrator; convergence analysis; blowup; critical exponent; nonlinear Schrödinger equation; Manakov equation; Benjamin-Bona-Mahony equation; BBM equation; stochastic; random; dispersion; white noise dispersion; finite difference; pseudospectral; code; matlab; exponential integrator; splitting integrator; convergence in probability; Mathematics; matematik; Numerical Analysis; numerisk analys;

    Sammanfattning : This doctoral thesis provides a comprehensive numerical analysis and exploration of several stochastic partial differential equations (SPDEs). More specifically, this thesis investigates time integrators for SPDEs with white noise dispersion. LÄS MER

  5. 4. The development of resource polymorphism – Effects of diet, predation risk and population dynamical feedbacks

    Författare :Jens Andersson; Lennart Persson; André M. De Roos; Umeå universitet; []
    Nyckelord :body shape; diet; geometric morphometrics; phenotypic plasticity; population dynamics; predation risk; resource polymorphism; size structured populations;

    Sammanfattning : This thesis deals with the evolution of individuals within a species adapted to utilize specific resources, i.e. resource polymorphism. Although a well-known phenomenon, the understanding of the mechanisms behind is not complete. LÄS MER

  7. 5. Ontogenetic bottlenecks : effects on intraguild predation systems and ecosystem efficiency

    Författare :Birte Reichstein; Lennart Persson; André M. De Roos; Priyanga Amarasekare; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mixed interactions; cannibalism; life-history omnivory; ontogenetic niche shift; biomass overcompensation; biomass production; ontogenetic asymmetry; indirect effects; biology; biologi; zooekologi; Animal Ecology;

    Sammanfattning : Size-dependent differences between individuals in size-structured organisms have fundamental effect on population and community dynamics. Intraguild predation (IGP) is one specifically interesting constellation that often arises when two size-structured populations interact. LÄS MER