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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Afgrijzen over en bewondering voor stadsboer
Jansma, J.E. - \ 2019
Voedsel Anders - Voedsel Dichtbij: Het experiment Oosterwold
Jansma, J.E. - \ 2019
Prosumptie in de polder
Jansma, J.E. - \ 2019
Wageningen University & Research
Prosumptie in de polder: een verkenning van de zelf voedsel producerende consument in Almere
Veen, Esther ; Jansma, Jan Eelco ; Dagevos, Hans ; Schans, Jan Willem van der - \ 2019
Wageningen : Stichting Wageningen Research, Wageningen Plant Research (Rapport WPR 799) - 69
Thought for Food: A social practice perspective at planning of urban agriculture in Almere Oosterwold
Jansma, J.E. - \ 2019
Stadslandbouwplein Oosterwold Ontkiemt
Jansma, Jan-Eelco - \ 2019
Acute effects of ∆9-tetrahydrocannabinol (THC) on resting state brain function and their modulation by COMT genotype
Bossong, Matthijs G. ; Hell, Hendrika H. van; Schubart, Chris D. ; Saane, Wesley van; Iseger, Tabitha A. ; Jager, Gerry ; Osch, Matthias J.P. van; Jansma, J.M. ; Kahn, René S. ; Boks, Marco P. ; Ramsey, Nick F. - \ 2019
European Neuropsychopharmacology 29 (2019)6. - ISSN 0924-977X - p. 766 - 776.
Arterial spin labelling - Cannabis - Catechol-methyl-transferase (COMT) - Delta9-tetrahydrocannabinol (THC) - Resting state connectivity - Salience

Cannabis produces a broad range of acute, dose-dependent psychotropic effects. Only a limited number of neuroimaging studies have mapped these effects by examining the impact of cannabis on resting state brain neurophysiology. Moreover, how genetic variation influences the acute effects of cannabis on resting state brain function is unknown. Here we investigated the acute effects of ∆9-tetrahydrocannabinol (THC), the main psychoactive constituent of cannabis, on resting state brain neurophysiology, and their modulation by catechol-methyl-transferase (COMT) Val158Met genotype. Thirty-nine healthy volunteers participated in a pharmacological MRI study, where we applied Arterial Spin Labelling (ASL) to measure perfusion and functional MRI to assess resting state connectivity. THC increased perfusion in bilateral insula, medial superior frontal cortex, and left middle orbital frontal gyrus. This latter brain area showed significantly decreased connectivity with the precuneus after THC administration. THC effects on perfusion in the left insula were significantly related to subjective changes in perception and relaxation. These findings indicate that THC enhances metabolism and thus neural activity in the salience network. Furthermore, results suggest that recruitment of brain areas within this network is involved in the acute effects of THC. Resting state perfusion was modulated by COMT genotype, indicated by a significant interaction effect between drug and genotype on perfusion in the executive network, with increased perfusion after THC in Val/Met heterozygotes only. This finding suggests that prefrontal dopamine levels are involved in the susceptibility to acute effects of cannabis.

Eetbare stad Almere : Een goed bewaard geheim aan de vergetelheid onttrokken
Jansma, J.E. - \ 2019
Wageningen : Wageningen University & Research
Inzaaien van kruiden in grasland : Kruiden: mooi voor het oog, functioneel voor vogels en koeien
Janssen, Pedro ; Hoekstra, Nyncke ; Eekeren, Nick van; Jansma, Anne ; Iepema, Goaitske ; Verhoeff, Teus - \ 2019
Ekoland (2019)1. - ISSN 0926-9142 - p. 56 - 57.
Het stedelijke voedsel landschap
Jansma, Jan-Eelco - \ 2019
Gastcollege voor derdejaars studenten Aeres Almere
Eetbare stad Almere : Een globale inventarisatie van eetbare soorten in de gemeente Almere
Visser, Andries ; Dekking, Arjan ; Jansma, Jan Eelco ; Lahr, Joost ; Roosenschoon, Onno ; Grashof-Bokdam, Carla ; Ozinga, Wim ; Ottburg, Fabrice ; Belgers, Dick ; Smidt, Rob - \ 2019
Lelystad : Stichting Wageningen Research, Wageningen Plant Research, Business unit Open Teelten (Wageningen Plant Research rapport WPR-778) - 31
Mensen maken de stad
Jansma, Jan-Eelco - \ 2019
Oosterwold: the emergence of a new urban food scape
Jansma, Jan-Eelco - \ 2019
lecture for 45 students of UWE from Bristol (UK)
Oosterwold: The emergence of a new urban landscape
Jansma, Jan-Eelco - \ 2019
AESOP 'Sustainable food planning' groupFeeding the city or the feeding city?
Jansma, Jan-Eelco - \ 2019
De stad, ons eten en het landschap; Het veranderende voedsellandschap van Nederland
Jansma, Jan-Eelco - \ 2019
Oosterwold: een hybride tussen stad en platteland
Jansma, J.E. - \ 2019
Wageningen University & Research
Planning Practice for (Urban) Agriculture
Jansma, Jan-Eelco - \ 2019
DIY in Oosterwold: korte kringloop voor voedsel
Jansma, Jan-Eelco - \ 2019
Stad en ommeland transformeren naar tussenland in Oosterwold
Jansma, J.E. ; Dagevos, H. - \ 2018
Landwerk 18 (2018)4. - ISSN 1567-1844 - p. 44 - 47.
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