Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    Regularized Multivariate Analysis of Variance
    Engel, J. ; Houthuijs, Kas J. ; Vasiliou, Vasilis ; Charkoftaki, Georgia - \ 2020
    In: Comprehensive Chemometrics / Brown, Steven, Tauler, Romà, Walczak, Beata, Elsevier - ISBN 9780444641663 - p. 479 - 494.
    Experimental designs in modern experiments in the life sciences often comprise multiple factors. Usually, the number of response variables vastly exceeds the sample size and well-established methods for analysis of multifactor data such as multivariate analysis of variance (MANOVA) cannot be applied. This issue can be circumvented by combining MANOVA with a shrinkage estimator of the correlation matrix. This chapter discusses the principles of this regularized MANOVA (rMANOVA) approach. Two examples from untargeted metabolomics studies are used to demonstrate application of rMANOVA in practice. Focus lies on identification of significant main and interaction effects and the variables associated to them
    Effect van ledverlichting op dragende zeugen en gespeende biggen
    Kluivers-Poodt, M. ; Binnendijk, G. ; Houthuijs, M. - \ 2018
    Wageningen : Wageningen Livestock Research (Wageningen Livestock Research rapport 1127) - 38
    In deze studie is middels een steekproef in Noord-Brabant en Gelderland in de praktijk op 48 varkensbedrijven het geurverwijderingsrendement van een luchtwasser bepaald. De steekproef omvatte zowel chemische, combi- als biologische wassers. Daarnaast zijn indicatieve metingen van de ammoniakverwijdering uitgevoerd en is een aantal procesparameters bepaald. Uit de studie blijkt dat de prestatieniveaus van de onderzochte chemische en biologische wassers dicht in de buurt van de Rgv- en Rav-reductieniveaus liggen, maar dat het prestatieniveau van de combi-wassers aanzienlijk lager is dan het Rgv- en Rav-reductieniveau.
    Strategies for positioning animal welfare as personally relevant
    Riemsdijk, Lenka van; Ingenbleek, Paul T.M. ; Houthuijs, Marleen ; Trijp, Hans C.M. van - \ 2017
    British Food Journal 119 (2017)9. - ISSN 0007-070X - p. 2062 - 2075.
    Animal welfare - Consumers - FMCG - Marketing - Positioning strategies

    Purpose: Next to organic food products, an assortment of ethical products is emerging in the supermarket that targets the large market segment of consumers that are open for ethical product choices but do not restrict themselves to them. The purpose of this paper is to examine the positioning strategies that marketers use to persuade consumers in this segment to buy animal-friendly products (AFPs). Design/methodology/approach: The authors approach product positioning from a consumption values perspective from which they examine strategies that make animal welfare (AW) personally relevant to the buyer because they reinforce AW with suitable consumption value (functional, emotional, social, sensory, epistemic and/or ethical). Using data from 129 AFPs from a Dutch supermarket, the authors explore the positioning strategies of these products. Findings: The results identified four different strategies used to position AFPs in a Dutch supermarket. They respectively call upon consumers’ emotions, functional or sensory perceptions, curiosity and sense of public welfare. The findings also show substantial category differences, with fresh products relying predominantly on emotional value and processed food on functional value. Originality/value: This study is the first to empirically explore positioning strategies of AFPs on the basis of their consumption values. The study offers a novel perspective to understand how companies try to extend the market for AFPs, thus providing a basis for a new research agenda.

    Research project on the relationship between air quality and health in six central and eastern european countries.
    Lebret, E. ; Houthuijs, D. ; Fletcher, T. ; Elliott, P. ; Brunekreef, B. - \ 1995
    Epidemiology 6 (1995). - ISSN 1044-3983 - p. S18 - S18.
    The assessment of personal exposure to nitrogen dioxide in epidemiological studies.
    Noy, D. ; Brunekreef, B. ; Boleij, J.S.M. ; Houthuijs, D. ; Koning, R. - \ 1990
    Atmospheric Environment 24A (1990). - ISSN 1352-2310 - p. 2903 - 2909.
    Lung growth of pre-adolescent children.
    Smeets, M. ; Brunekreef, B. ; Dijkstra, L. ; Houthuijs, D. - \ 1990
    European Respiratory Journal 3 (1990). - ISSN 0903-1936 - p. 91 - 96.
    Health effects of indoor exposure to NO2, environmental tobacco smoke and home dampness.
    Brunekreef, B. ; Dijkstra, L. ; Houthuijs, D. ; Boleij, J.S.M. - \ 1990
    In: Proc. 5th Int. Conf. Indoor air quality and climate, Toronto. Vol. 1 - p. 363 - 368.
    Indoor nitrogen dioxide exposure and children's pulmonary function - a comparison of NO2 measurements and source presence as predictors of response.
    Brunekreef, B. ; Houthuijs, D. ; Dijkstra, L. ; Boleij, J.S.M. - \ 1990
    Journal of the Air & Waste Management Association 40 (1990). - ISSN 1096-2247 - p. 1252 - 1256.
    Reproducibility of personal exposure estimates for nitrogen dioxide over a two year period.
    Houthuijs, D. ; Dijkstra, L. ; Brunekreef, B. ; Boleij, J.S.M. - \ 1990
    Atmospheric Environment 24A (1990). - ISSN 1352-2310 - p. 435 - 437.
    Short communication. Reproducibility of personal exposure estimates for nitrogen dioxide over a two year period.
    Houthuijs, D. ; Dijkstra, L. ; Brunekreef, B. ; Boleij, J.S.M. - \ 1990
    Atmospheric Environment 24A (1990). - ISSN 1352-2310 - p. 435 - 437.
    Estimation of maximum expiratory flow volume variables in children.
    Houthuijs, D. ; Remijn, B. ; Brunekreef, B. ; Koning, R. de - \ 1989
    Pediatric Pulmonology 6 (1989). - ISSN 8755-6863 - p. 127 - 132.
    A comparison of categorical and continuous exposure variables in a study on health effects of indoor nitrogen dioxide exposure.
    Brunekreef, B. ; Houthuijs, D. ; Dijkstra, L. ; Boleij, J.S.M. - \ 1989
    In: Proc. 8th World Clean air Congr., The Hague. Man and his ecosystem, Vol.1, L.J. Brasser & W.C. Mulder (eds.). Elsevier Science Publ., Amsterdam - p. 241 - 246.
    Huisdieren en cara.
    Brunekreef, B. ; Houthuijs, D. ; Dijkstra, L. - \ 1989
    Tijdschrift voor sociale gezondheidszorg 4 (1989). - ISSN 0920-0517 - p. 25 - 26.
    Evaluatie van een vragenlijst naar luchtwegsymptomen bij kinderen: I. Reproduceerbaarheid van de antwoorden.
    Akkerman, I. ; Dijkstra, L. ; Houthuijs, D. ; Brunekreef, B. ; Biersteker, K. - \ 1989
    Tijdschrift voor sociale gezondheidszorg 67 (1989). - ISSN 0920-0517 - p. 183 - 187.
    Evaluatie van een vragenlijst naar luchtwegsymptomen bij kinderen: II. Samenhang tussen de vragen en relatie tussen symptomen en longfunctie.
    Akkerman, I. ; Dijkstra, L. ; Houthuijs, D. ; Brunekreef, B. ; Biersteker, K. - \ 1989
    Tijdschrift voor sociale gezondheidszorg 67 (1989). - ISSN 0920-0517 - p. 232 - 236.
    Luchtverontreiniging in Nederlandse woningen 3: vocht, tot slot en literatuurlijst.
    Houthuijs, D.J.M. ; Fischer, P. ; Boleij, J.S.M. - \ 1988
    Lucht en Omgeving 5 (1988)1. - ISSN 0168-8138 - p. 9 - 11.
    klimaatregeling - gebouwen - woningen - milieubeheersing - verwarming - huizen - vochtigheid - hygiëne - nederland - regulatie - kantoorziekte - ventilatie - air conditioning - buildings - dwellings - environmental control - heating - homes - humidity - hygiene - netherlands - regulation - sick building syndrome - ventilation
    De ontwikkeling van de luchtwegen van kinderen : de gevolgen van blootstelling aan stikstofdioxyde en tabaksrook binnenshuis
    Dijkstra, L. ; Houthuijs, D.J.M. ; Akkerman, I. ; Brunekreef, B. - \ 1988
    Breda : Papieren Tijger - ISBN 9789067280266 - 164
    ademhalingssysteem - blootstelling - passief roken - stikstofdioxide - gezondheidsgevaren - kinderen - respiratory system - exposure - passive smoking - nitrogen dioxide - health hazards - children
    Health effects of indoor exposure to nitrogen dioxide and tobacco smoke.
    Dijkstra, L.J. ; Houthuijs, D.J.M. ; Akkerman, I. ; Brunekreef, B. - \ 1988
    In: Proc. Symp. Indoor and ambient air quality, R. Perry, P.W. Kirk (eds.). Selper, London - p. 277 - 286.
    Relationships of growth rates of standing height and pulmonary function in 6-12 year old children.
    Smeets, M. ; Brunekreef, B. ; Dijkstra, L. ; Houthuijs, D.J.M. - \ 1988
    In: Abstract 23rd Ann. Meeting Soc. Eur. Physiol. Clin. Respir. Respiratory failure, Athens (1988) 71s
    Longfunctie- en lengtegroei bij basisschoolkinderen.
    Smeets, M.J.M.C. ; Brunekreef, B. ; Dijkstra, L. ; Houthuijs, D.J.M. - \ 1988
    Tijdschrift voor sociale gezondheidszorg 66 (1988). - ISSN 0920-0517 - p. 16 - 16.
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