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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    Learning about learning in sustainability transitions
    Mierlo, Barbara van; Halbe, Johannes ; Beers, Pieter J. ; Scholz, Geeske ; Vinke-de Kruijf, Joanne - \ 2020
    Environmental Innovation and Societal Transitions 34 (2020). - ISSN 2210-4224 - p. 251 - 254.
    Climate adaptation in urban areas: on the successes and failures of collaborative projects
    Antunes Granadeiro Cortesão, João ; Vinke-de Kruijf, Joanne - \ 2018
    Network Learning as an Educational Principle in Higher Education
    Stobbelaar, D.J. ; Kruijf, M. de - \ 2015
    In: Proceedings of the 5th World Conference on Learning, Teaching and Educational Leadership. - Elsevier - p. 694 - 698.
    The traditional way of educating nature management students, in which students are trained to solve relatively simple and technical problems, is no longer sufficient. Societies are changing towards a network society, which makes nature management more complex. This asks for new competences and new learning strategies in nature management education. Therefore, VHL University of Applied Sciences started two pilots in 2012. The goal of these pilots was to create a network of lecturers and students, nature conservationists and local stakeholders to create sustainable and innovative nature management strategies within a local context. Network learning was the leading learning strategy in both these pilots. In this paper we use these pilots for an evaluation of network learning as an educational principle for higher education. The pilot will be assessed on criteria based on three perspectives: 1) the changing society, 2) educational theories and 3) a theory on learning networks. The paper results in recommendations for further use of network learning as an educational principle in general
    Network learning as educational principle in higher education
    Kruijf, M. de; Stobbelaar, D.J. - \ 2014
    In: Book of Abstracts of the 5th World Conference on learning, teaching & educational leadership. - Academic World Education and Research Center - p. 76 - 76.
    The traditional way of educating nature management students, in which students are trained to solve relative simple and technical problems, is no longer sufficient. Societies are changing towards a network society, which makes nature management more complex. This asks for new competences and new learning strategies in nature management education. Therefore, VHL University of Applied Sciences started two pilots in 2012. The goal of these pilots was to create a network of lecturers and students, nature conservationists and local stakeholders to create sustainable and innovative nature management strategies within a local context. Network learning was the leading learning strategy in both these pilots. In this paper we use these pilots for an evaluation of network learning as an educational principle for higher education. The pilot will be assessed on criteria based on three perspectives: 1) the changing society, 2) educational theories and 3) theory on learning networks. The paper results in recommendations for further use of network learning as educational principle in general.
    In Vivo Performance Testing of the Novel Medspray (R) Wet Aerosol Inhaler
    Munnik, P. ; Boer, A.H. de; Wissink, J. ; Hagedoorn, P. ; Heskamp, I. ; Kruijf, W. de; Rijn, C.J.M. van; Frijlink, H.W. ; Zanen, P. - \ 2009
    Journal of Aerosol Medicine and Pulmonary Drug Delivery 22 (2009)4. - ISSN 1941-2711 - p. 317 - 321.
    optimal particle-size - mild asthmatics - deposition - salbutamol - efficacy - delivery
    Background: Monodisperse salbutamol inhalers were compared to select the optimal mass median aerodynamic diameter: 4.0, 5.0 or 6.0 mu m. Methods: Fifteen mild asthmatic patients participated. In all a FEV1-response of >12% (vs. baseline) or >200 mL after inhalation of 200 mu g salbutamol was measured. Each patient was studied four times with intervals of 1 week (three active and one placebo inhaler). First, 10 mu g salbutamol was administered, followed by 10, 20, and 40 mu g, resulting in cumulative doses of 10, 20, 40, and 80 mu g salbutamol. The FEV1 and other lung function parameters were assessed at baseline and 30 min after inhalation of each consecutive dose. Five minutes later a next inhalation was given. Results: The 4.0- and 5.0-mu m droplets did not differ from placebo (p = 0.502, p = 0.127), but the 6.0-mu m droplets differed significantly (p = 0.003). The difference between 6.0-4.0 mu m droplets was significant (p = 0.020), but not between the 6.0-5.0 mu m droplets (p = 0.129). The FEV1 increase after 80-mu g salbutamol for the 6.0-mu m droplets was 243 +/- 144 mL. Conclusions: The study showed that the 6.0-mu m droplets differed from the others in terms of FEV1-improvement, and hence, are the most efficacious of the three evaluated
    Heterosubtypic neutralizing monoclonal antibodies cross-protective against H5N1 recovered from human IgM+ memory B cells.
    Throsby, M. ; Brink, E. van den; Jongeneelen, M. ; Poon, L.L.M. ; Alard, P. ; Cornelissen, L. ; Bakker, A.B.H. ; Cox, F. ; Deventer, W.B.E. van; Guan, Y. ; Cinatl, J. ; Meulen, J. van der; Lasters, I. ; Carsetti, R. ; Peiris, M. ; Kruijf, C.G. de; Goudsmit, J. - \ 2008
    PLoS ONE 3 (2008)12. - ISSN 1932-6203
    Background: The hemagglutinin (HA) glycoprotein is the principal target of protective humoral immune responses to influenza virus infections but such antibody responses only provide efficient protection against a narrow spectrum of HA antigenic variants within a given virus subtype. Avian influenza viruses such as H5N1 are currently panzootic and pose a pandemic threat. These viruses are antigenically diverse and protective strategies need to cross protect against diverse viral clades. Furthermore, there are 16 different HA subtypes and no certainty the next pandemic will be caused by an H5 subtype, thus it is important to develop prophylactic and therapeutic interventions that provide heterosubtypic protection. Methods and Findings: Here we describe a panel of 13 monoclonal antibodies (mAbs) recovered from combinatorial display libraries that were constructed from human IgM(+) memory B cells of recent (seasonal) influenza vaccinees. The mAbs have broad heterosubtypic neutralizing activity against antigenically diverse H1, H2, H5, H6, H8 and H9 influenza subtypes. Restriction to variable heavy chain gene IGHV1-69 in the high affinity mAb panel was associated with binding to a conserved hydrophobic pocket in the stem domain of HA. The most potent antibody (CR6261) was protective in mice when given before and after lethal H5N1 or H1N1 challenge. Conclusions: The human monoclonal CR6261 described in this study could be developed for use as a broad spectrum agent for prophylaxis or treatment of human or avian influenza infections without prior strain characterization. Moreover, the CR6261 epitope could be applied in targeted vaccine strategies or in the design of novel antivirals. Finally our approach of screening the IgM+ memory repertoire could be applied to identify conserved and functionally relevant targets on other rapidly evolving pathogens.
    Vijf jaar GIOS
    Asselman, G. ; Baarslag, R. ; Beest, N. van; Bliek, P. ; Boerma, S. ; Bonnema, H. ; Braam, P. ; Bruls, E. ; Buijs, E. ; Clement, H. ; Dongen, R. van; Eert, G. van; Ekamper, T. ; Goossens, A. ; Graaf, M. v.d.; Gremmen, T. ; Greven, A. ; Heijer, M. den; Hikma, H. ; Jonkhof, J.F. ; Kaptein, E. ; Korporaal, N. ; Kruijf, H. de; Kuypers, V.H.M. ; Looijenga, J. ; Matijsen, J. ; Menzo, G. ; Mulder, I. ; Nijhof, H. ; Otter, L. den; Paris, C. ; Peeters, N. ; Peletier, P. ; Philippa, M. ; Schenkels, J. ; Stam, S. ; Swart, B. ; Timmermans, W. ; Veldstra, W. ; Verhoef, J. ; Visschedijk, P.A.M. ; Vreke, J. ; Vries, B. de; Wakeren, G. van; Wermenbol, P. ; Wijngaarden, J.W. van; Wit, J. de - \ 2006
    Wageningen : Alterra - 99 p.
    Attitudes and Their Influence on Nature Valuation and Management in Relation to Sustainable Development
    Kruijf, H.A.M. de; Ierland, E.C. van; Heide, C.M. van der; Dekker, J.N.M. - \ 2003
    In: Managing for Healthy Ecosystems / Rapport, D.J., Lasley, W.L., Rolston, D.E., Qualset, C.O., Damania, A.B., Boca Raton : Lewis Publishers - ISBN 9781566706124 - p. 127 - 143.
    Viscoelastic properties of an exocellular polysaccharide produced by a Lactococcus lactis
    Tuinier, R. ; Oomen, C.J. ; Zoon, P. ; Cohen Stuart, M.A. ; Kruijf, C.G. de - \ 2000
    Biomacromolecules 1 (2000). - ISSN 1525-7797 - p. 219 - 223.
    The viscoelastic properties of a well-characterized exocellular polysaccharide (EPS) produced by the lactic acid bacterium Lactococcus lactis subsp. cremoris strain B40 were investigated. Dynamic rheological measurements were made as a function of frequency and EPS concentration. The bead - spring model of Rouse could reasonably describe the dynamic properties. Concentrated EPS solutions have a significant elasticity (G′ > G″) at high frequencies. The relatively high G′ values at high concentrations and high frequencies are indicative of significant normal stress differences, and we put forward a hypothesis that suggests that these normal stresses may explain the contribution of EPSs to the ropy behavior of yogurts.
    Attitudes and the value of biodiversity.
    Ierland, E.C. van; Heide, M. van der; Kruijf, J. de - \ 1998
    Unknown Publisher
    Plantkenmerken in relatie tot de veilingprijs, plantwaardering door consumenten en handel bij poinsettia
    Benninga, J. - \ 1997
    Aalsmeer : Proefstation voor Bloemisterij en Glasgroente (Rapport / Proefstation voor Bloemisterij en Glasgroente 111) - 50
    potplanten - consumenten - onderzoek - vraag - consumentengedrag - karakteristieken - gewicht - kleur - vorm - lengte - Nederland - rapporten - Euphorbia pulcherrima - binnen kweken (van planten) - pot plants - consumers - research - demand - consumer behaviour - characteristics - weight - colour - shape - length - Netherlands - reports - Euphorbia pulcherrima - indoor culture
    De kerstster (poinsettia/Euphorbia pulcherrima) is een typisch seizoenproduct, waarvan het prijsverloop tussen de jaren en binnen één aanvoerseizoen vaak een grillig verloop heeft. Het is ook een product waar gemakkelijk zichtbare afwijkingen bij optreden. Uit literatuur is bekend dat met eenvoudige teelthandelingen de plantvorm gemakkelijk te beïnvloeden is. Moeilijkheid is echter dat de plantontwikkeling ook beïnvloed wordt door het buitenklimaat (Hendriks 1995). De plantvorm heeft zeker invloed op de prijs en dus op de opbrengst. De kerstster is een gewas, waar er naar gestreefd wordt toe te werken naar een vooraf gedefinieerd eindproduct. De vraag naar de relatie tussen de prijs en de producteigenschappen is daarom actueel. De markt en dat zijn in feite de consumenten, zullen in toenemende mate gaan bepalen welk product gewenst is (de Kruijf 1995).
    Inhibition of the LH surge by restraint stress in cyclic rats: Studies on the role of GABAA and GABAB receptors.
    Roozendaal, M.M. ; Kruijf, H.F.M. de; Reuling, R.J.H. ; Threels, A. ; Swarts, J.J.M. ; Wiegant, V.M. ; Mattheij, J.A.M. - \ 1997
    Stress 1 (1997). - ISSN 1025-3890 - p. 241 - 248.
    Gamma-aminobutyric acid can suppress the surge of gonadotropins during pro-oestrus in the rat.
    Roozendaal, M.M. ; Kruijf, H.F.M. de; Reuling, R.J.H. ; Swarts, J.J.M. ; Mattheij, J.A.M. ; Wiegant, V.M. - \ 1993
    Journal of Reproduction and Fertility. Abstract Series 11 (1993). - ISSN 0954-0725 - p. 48 - 48.
    Invloed van een slechte ontwatering op de arbeidsopbrengst = Influence of poor-drainage on labour income
    Straten, H. van der; Wieling, H. ; Kruijf, A. de - \ 1980
    Lelystad : Proefstation voor de Rundveehouderij (Rapport / Proefstation voor de Rundveehouderij 71) - 101
    drainage - arbeid (werk) - productiviteit - werkplanning - arbeidskunde - drainage - labour - productivity - work planning - work study
    In het kader van een gezamenlijk onderzoek met de Landinrichtingsdienst zijn de gevolgen van een slechte ontwatering in bedrijfsverband bestudeerd. Dit artikel is een verslag van deze studie. De volgende aspecten werden doorgerekend: de benutting van het gras, de voederwaarde van het kuilvoer en de berijdbaarheid van het grasland. De berekeningen werden met behulp van de computer uitgevoerd en zijn gebaseerd op het prijspeil van begin 1979
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