PhD theses

All Wageningen University PhD theses

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    Wageningen PhD theses


    This database contains bibliographic descriptions of all Wageningen University PhD theses from 1920 onwards. It is updated on a daily basis by WUR Library.

    Author abstracts and/or summaries are added to all descriptions. A link to the full text dissertation is added to the bibliographic description. In a few cases, no electronic version is available, mostly because of copyright issues.

    Hard copies of all theses are available for loan at WUR Library. To request them, click the link Request this publication in the full record presentation. This is a fee based service.

    mail icon WUR Library, 9 july 2012

     

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Exploring the biofluiddynamics of swimming and flight [PhD thesis]
Lentink, D. \ 2008
fishes - aerial insects - birds - seeds - swimming - flight - dynamics - fluid mechanics - animal models - zoology - engineering

Abstract:
cum laude graduation (with distinction)

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Polymer tensiometers to characterize unsaturated zone processes in dry soils [PhD thesis]
Ploeg, M.J. van der \ 2008
soil - arid soils - tensiometers - soil water - water uptake - drought
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Embryo temperature during incubation: practice and theory [PhD thesis]
Lourens, S. \ 2008
chicks - embryos - temperature - incubation - embryonic development - heat production - heat loss - egg shell - incubators - poultry farming
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Better modelling practice : an ontological perspective on multidisciplinary, model-based problem solving [PhD thesis]
Scholten, H. \ 2008
mathematical models - problem solving - knowledge - simulation - simulation models - quality - decision making - ontologies - modeling - quality management
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The SERK1 protein complexes [PhD thesis]
Karlova, R.B. \ 2008
biochemical receptors - kinases - signal transduction - embryogenesis - plant physiology
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The potential of computer-based quantitative structure activity approaches for predicting acute toxicity of chemicals [PhD thesis]
Zvinavashe, E. \ 2008
structure activity relationships - toxicity - toxic substances - animal testing alternatives - regulations - europe - log octanol water partition coefficient
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Coping with the long term : an empirical analysis of time perspectives, time orientations, and temporal uncertainty in forestry [PhD thesis]
Hoogstra, M.A. \ 2008
forestry - decision making - uncertainty - time - planning - forest management
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Inter-sectoral coordination in forest policy : a frame analysis of forest sectorization processes in Austria and the Netherlands [PhD thesis]
Verbij, E. \ 2008
forest policy - coordination - intersectoral planning - multiple use - austria - netherlands

Abstract:
Inter-sectoral coordination has become a central issue in different forest policy arenas worldwide and is considered to be essential for solving a whole range of problems the forest sector is currently facing

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Ecology and modelling of Escherichia coli O157:H7 and Salmonella enterica serovar Typhimurium in cattle manure and soil [PhD thesis]
Semenov, A.V. \ 2008
manures - soil - escherichia coli - salmonella enteritidis - microbial ecology - food contamination - simulation models - soil management - modeling

Abstract:
The number of food poisoning cases caused by enteropathogens has increased in recent years. A significant part of the outbreaks associated with the consumption of raw vegetables has been attributed to Escherichia coli O157:H7 and Salmonella enterica subsp. enterica serovar Typhimurium. Bovine manure and slurry are the main environmental sources of these pathogens. Thus, reduction of the multiplication of E. coli O157:H7 and Salmonella serovar Typhimurium in cattle and their survival in manure and slurry are important tasks to minimize the risks of contamination of plant products and outbreaks of food-borne diseases. This thesis describes the influence of various environmental factors on survival of E. coli O157:H7 and Salmonella serovar Typhimurium in manure, slurry and soil amended with manure or slurry. The results presented in this thesis can be used for risk assessment of E. coli O157:H7 and Salmonella serovar Typhimurium in dairy farming systems and will help to identify and evaluate potential control strategies to minimize the chance of pathogen spread in the vegetable production chain.

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Integrating local knowledge into GIS-based flood risk assessment : the case of Traingulo and Mabolo communities in Naga city, The Philippines [PhD thesis]
Peters Guarín, G. \ 2008
floods - risk assessment - local population - geographical information systems - integration
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Isolation, identification and activity of natural antioxidants from sweet grass (Hierochloe odorata), costmary (Chrysanthemum balsamita) and horehound (Marrubium vulgare), cultivated in Lithuania [PhD thesis]
Pukalskas, A. \ 2008
antioxidants - natural products - extraction - physicochemical properties - lithuania
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Synthesis and photophysics of functionalized silicon nanoparticles [PhD thesis]
Rosso-Vasic, M. \ 2008
synthesis - optical properties - silicon - particles - photochemistry - nanotechnology
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In vivo relevance of in vitro detected estrogenic effects of food associated compounds [PhD thesis]
Veld, M.G.R. ter \ 2008
oestrogenic properties - plasticizers - food packaging - phthalates - quercetin
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Dealing with the state, the market and NGOs : the impact of institutions on the constitution and performance of Community Forest Enterprises (CFE) in the lowlands of Bolivia [PhD thesis]
Benneker, C. \ 2008
community forestry - institutions - forest management - sustainability - bolivia - timber trade
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Listeria monocytogenes growth limits and stress resistance mechanisms [PhD thesis]
Veen, S. van der \ 2008
listeria monocytogenes - growth - stress response - stress tolerance

Abstract:
The food-borne pathogen Listeria monocytogenes is a Gram-positive facultative anaerobic rod, which is the causative agent of listeriosis. Due to the severity of the disease and the fact that its incidence is increasing in numerous European countries, L. monocytogenes is of great public health concern. This bacterium shows relatively high resistance to environmental insults compared with many other non-spore-forming food-borne pathogens. It is able to grow at low pH, at high salt concentrations, and low temperatures. The possibility that this pathogen (cross-) contaminates food products is a major concern for the food industry. Therefore, it is important to investigate the diversity in growth potential and stress resistance (mechanisms) of L. monocytogenes strains during exposure to commonly used preservation conditions. Several approaches are described in this thesis, including comparison of stress resistance and growth limits of a large collection of natural isolates, screening a mutant library for stress sensitive mutants, and transcription profiling of stress responses. The function of various stress response genes and mechanisms including the so-called SOS response are furthermore investigated in detail.

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Statistical applications in nutrigenomics : analyzing multiple genes and proteins in relation to complex diseases in humans [PhD thesis]
Heidema, G. \ 2008
data analysis - statistical analysis - public health - nutrigenomics
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Multifunctional starch derivatives: synthesis, characterization and properties [PhD thesis]
Huijbrechts, A.M.L. \ 2008
maize - starch - derivatives - synthesis - physicochemical properties - biodegradation
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Understanding landscape dynamics over thousand years : combining field and model work : with case study in the Drakensberg foothill, KwaZulu-Natal, South Africa [PhD thesis]
Temme, A.J.A.M. \ 2008
landscape - landforms - geomorphology - geology - physical geography - dynamics - change - mathematical models - simulation models - geographical information systems
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Plants on the move: plant-soil interactions in poleward shifting plant species [PhD thesis]
Grunsven, R.H.A. van \ 2008
plants - plant ecology - plant succession - invasions - species - soil - interactions - rhizosphere - soil flora - soil fauna - climatic change - soil plant relationships
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Major histocompatibility (MH) polymorphism of common carp : link with disease resistance [PhD thesis]
Rakus, K.Ł. \ [2008]
carp - major histocompatibility complex - polymorphism - disease resistance - genes - immune response - immunology - fish culture - aquaculture
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