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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Can computer models be used for social learning? A serious game in water management
Wal, Merel M. Van der; Kraker, Joop de; Kroeze, Carolien ; Kirschner, Paul A. ; Valkering, Pieter - \ 2016
Environmental Modelling & Software 75 (2016). - ISSN 1364-8152 - p. 119 - 132.
Serious game - Simulation model - Social learning - Water management

Computer simulation models are increasingly used to support solving complex problems in natural resource management, with social learning as subsidiary goal of the solution process. In this research, a serious game on water management is used where participants receive feedback on consequences of their choices from an Integrated Assessment Meta Model. This study aims to determine if and how social learning takes place and explores the role of the model in social learning. Group discussions were qualitatively analysed to uncover and understand the mechanisms in this process. Results show that social learning took place in 10 of the 12 game sessions. Though model feedback was an important driver for social learning, social learning was driven most by the team's reflection on their perspective. We conclude that using a model can facilitate social learning in a serious-game setting, in particular in combination with reflection on teams' perspectives.

Problem formulation and classification in integrated assessment modelling
Kok, K. ; Valkering, P. ; Carmichel, J. ; Hinkel, J. ; Athanasiadis, I. ; Salmi, O. ; Moreau, V. ; Steenhof, P. - \ 2006
Substrate-induced pairing of Si ad-dimers on the Si(100) surface.
Braun, O.M. ; Valkering, T.P. ; Opheusden, J.H.J. van; Zandvliet, H.J.W. - \ 1997
Surface science 384 (1997). - ISSN 0039-6028 - p. 129 - 135.
Pistil exudate production and pollen tube growth in Lilium longiflorum Thunb.
Janson, J. ; Reinders, M.C. ; Valkering, A.G.M. ; Tuyl, J.M. van; Keijzer, C.J. - \ 1994
Annals of Botany 73 (1994)4. - ISSN 0305-7364 - p. 437 - 446.
bloemen - vruchten - bloembollen - plantenontwikkeling - plantenorganen - plantenfysiologie - lilium longiflorum - flowers - fruits - ornamental bulbs - plant development - plant organs - plant physiology
Exudate production in the pistil of Lilium longiflorum was studied in relation to pollen tube growth, using scanning electron microscopy (SEM), transmission electron microscopy and light microscopy. In contrast with conventional fixation for SEM, during which the exudate of L. longiflorum largely washes away, the exudate remains present through freezing in case of cryo-SEM. Using the latter method we observed that exudate production on the stigma and in the style started before anthesis. Just underneath the stigma the exudate was first accumulated at the top of each secretory cell, followed by a merging of those accumulations as exudate production proceeded. Exudate is also produced by the placenta. It was however not possible to determine whether any of this fluid originated from the micropyle. Apart from the cell shape and the cuticle present in between the secretory cells, the ultrastructure of the secretory cells covering the placenta was comparable to those of the stylar canal. The transfer wall of the secretory cells of the placenta originated from fusing Golgi vesicles but the endoplasmic reticulum seemed to have an important role as well.
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