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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Hypoglycaemia induces recruitment of non-classical monocytes and cytotoxic lymphocyte subsets in type 1 diabetes
Ratter, Jacqueline M. ; Rooijackers, Hanne M.M. ; Jacobs, Cor W.M. ; Galan, Bastiaan E. de; Tack, Cees J. ; Stienstra, Rinke - \ 2018
Diabetologia 61 (2018)9. - ISSN 0012-186X - p. 2069 - 2071.
Hypoglycaemia - Inflammation - Type 1 diabetes
Nuttige beestjes in beeld
Huiting, Hilfred - \ 2018
Comparative ecologic relationships of saturated fat, sucrose, food groups, and a Mediterranean food pattern score to 50-year coronary heart disease mortality rates among 16 cohorts of the Seven Countries Study
Kromhout, Daan ; Menotti, Alessandro ; Alberti-Fidanza, Adalberta ; Puddu, Paolo Emilio ; Hollman, Peter ; Kafatos, Anthony ; Tolonen, Hanna ; Adachi, Hisashi ; Jacobs, David R. - \ 2018
European Journal of Clinical Nutrition 72 (2018). - ISSN 0954-3007 - p. 1103 - 1110.

Background/objectives: We studied the ecologic relationships of food groups, macronutrients, eating patterns, and an a priori food pattern score (Mediterranean Adequacy Index: MAI) with long-term CHD mortality rates in the Seven Countries Study. Subjects/methods: Sixteen cohorts (12,763 men aged 40–59 years) were enrolled in the 1960s in seven countries (US, Finland, The Netherlands, Italy, Greece, former Yugoslavia: Croatia/Serbia, Japan). Dietary surveys were carried out at baseline and only in a subsample of each cohort. The average food consumption of each cohort was chemically analyzed for individual fatty acids and carbohydrates. Results: Ecologic correlations of diet were computed across cohorts for 50-year CHD mortality rates; 97% of men had died in cohorts with 50-year follow-up. CHD death rates ranged 6.7-fold among cohorts. At baseline, hard fat was greatest in northern Europe, olive oil in Greece, meat in the US, sweet products in northern Europe and the US, and fish in Japan. The MAI was high in Mediterranean and Japanese cohorts. The 50-year CHD mortality rates of the cohorts were closely positively ecologically correlated (r = 0.68–0.92) with average consumption of hard fat, sweet products, animal foods, saturated fat, and sucrose, but not with naturally occurring sugars. Vegetable foods, starch, and the a priori pattern MAI were inversely correlated (r = −0.59 to −0.91) with CHD mortality rates. Conclusions: Long-term CHD mortality rates had statistically significant ecologic correlations with several aspects of diet consumed in the 1960s, the traditional Mediterranean and Japanese patterns being rich in vegetable foods, and low in sweet products and animal foods.

Veel regen in korte tijd plaagt akkerbouwers
Hoekzema, Gerard - \ 2018
The cooling effect of small blue urban speces is negligible
Lenzholzer, S. ; Cortesão, J. ; Klok, L. ; Jacobs, C.M.J. ; Kluck, Jeroen - \ 2018
urban climate - water bodies
From diversity to justice – Unraveling pluralistic rationalities in urban design
Hartmann, Thomas ; Jehling, Mathias - \ 2018
Cities (2018). - ISSN 0264-2751
Cultural Theory - Economic goods - Grid and group - Justice - Leipzig - Urban space
For Jane Jacobs, the city is a fundamental unit of diversity; she develops her ideas in the city around this key axiom. Diversity provides an ethical orientation and thus defines what a just city should achieve. For Jacobs, justice is represented by peoples’ inherent right to ‘make cities’. According to Jacobs, cities become just places by their ability to facilitate the spontaneous dynamics among social fabrics and urban spaces to generate the beauty and value of cities. This contribution picks up this claim for diversity and develops a theoretical lens to explore how diversity is incorporated in urban design. We use a theory on pluralism—Cultural Theory—to analyse forms of managing urban space in different types of goods. This is applied to analyse four idealistic urban spaces in the city of Leipzig.
Zeven redenen om te investeren in een groene stad
Hattum, Tim van; Jacobs, Cor ; Vries, Sjerp de; Stuiver, Marian ; Vreke, Jan ; Snep, Robbert ; Spijker, Joop ; Visschedijk, Peter - \ 2018
green roofs - green walls - plantations - parks - nature - well-being - urban areas - health
Weight loss moderately affects the mixed meal challenge response of the plasma metabolome and transcriptome of peripheral blood mononuclear cells in abdominally obese subjects
Fazelzadeh, Parastoo ; Hangelbroek, Roland W.J. ; Joris, Peter J. ; Schalkwijk, Casper G. ; Esser, Diederik ; Afman, Lydia ; Hankemeier, Thomas ; Jacobs, Doris M. ; Mihaleva, Velitchka V. ; Kersten, Sander ; Duynhoven, John van; Boekschoten, Mark V. - \ 2018
Metabolomics 14 (2018)4. - ISSN 1573-3882
Metabolic health - Mixed-meal challenge - Phenotype shift
Introduction: The response to dietary challenges has been proposed as a more accurate measure of metabolic health than static measurements performed in the fasted state. This has prompted many groups to explore the potential of dietary challenge tests for assessment of diet and lifestyle induced shifts in metabolic phenotype. Objectives: We examined whether the response to a mixed-meal challenge could provide a readout for a weight loss (WL)-induced phenotype shift in abdominally obese male subjects. The underlying assumption of a mixed meal challenge is that it triggers all aspects of phenotypic flexibility and provokes a more prolonged insulin response, possibly allowing for better differentiation between individuals. Methods: Abdominally obese men (n = 29, BMI = 30.3 ± 2.4 kg/m2) received a mixed-meal challenge prior to and after an 8-week WL or no-WL control intervention. Lean subjects (n = 15, BMI = 23.0 ± 2.0 kg/m2) only received the mixed meal challenge at baseline to have a benchmark for WL-induced phenotype shifts. Results: Levels of several plasma metabolites were significantly different between lean and abdominally obese at baseline as well as during postprandial metabolic responses. Genes related to oxidative phosphorylation in peripheral blood mononuclear cells (PBMCs) were expressed at higher levels in abdominally obese subjects as compared to lean subjects at fasting, which was partially reverted after WL. The impact of WL on the postprandial response was modest, both at the metabolic and gene expression level in PBMCs. Conclusion: We conclude that mixed-meal challenges are not necessarily superior to measurements in the fasted state to assess metabolic health. Furthermore, the mechanisms accounting for the observed differences between lean and abdominally obese in the fasted state are different from those underlying the dissimilarity observed during the postprandial response.
Effect of exercise on apparent total tract digestibility of nutrients and faecal recovery of ADL and TiO2 in ponies
Schaafstra, F.J.W.C. ; Doorn, D.A. van; Schonewille, J.T. ; Roelfsema, E. ; Westermann, C.M. ; Dansen, O. ; Jacobs, M. ; Lee, J.Y. ; Spronck, E.A. ; Blok, M.C. ; Hendriks, W.H. - \ 2018
Animal (2018). - ISSN 1751-7311 - p. 1 - 6.
digestibility - equines - exercise - markers - total faeces collection
Exercise and physical training are known to affect gastrointestinal function and digestibility in horses and can lead to inaccurate estimates of nutrient and energy digestibility when markers are used. The effect of exercise on apparent nutrient digestibility and faecal recoveries of ADL and TiO2 was studied in six Welsh pony geldings subjected to either a low- (LI) or high-intensity (HI) exercise regime according to a cross-over design. Ponies performing LI exercise were walked once per day for 45 min in a horse walker (5 km/h) for 47 consecutive days. Ponies submitted to HI exercise were gradually trained for the same 47 days according a standardized protocol. Throughout the experiment, the ponies received a fixed level of feed and the daily rations consisted of 4.7 kg DM of grass hay and 0.95 kg DM of concentrate. The diet was supplemented with minerals, vitamins and TiO2 (3.0 g Ti/day). Total tract digestibility of DM, organic matter (OM), CP, crude fat, NDF, ADF, starch, sugar and energy was determined with the total faeces collection (TFC) method. In addition, DM and OM digestibility was estimated using internal ADL and the externally supplemented Ti as markers. Urine was collected on the final 2 days of each experimental period. Exercise did not affect apparent digestibility of CP, crude fat, starch and sugar. Digestibility of DM (DMD), OM (OMD), ADF and NDF tended to be lower and DE was decreased when ponies received the HI exercise regime. For all treatments combined, mean faecal recoveries of ADL and Ti were 87.8±1.7% and 99.3±1.7%, respectively. Ti was not detected in the urine, indicating that intestinal integrity was maintained with exercise. Dry matter digestibility estimated with the TFC, ADL and Ti for ponies subjected to LI exercise were 66.3%, 60.3% and 64.8%, respectively, while DMD for HI ponies were 64.2%, 60.3% and 65.2%, respectively. In conclusion, physical exercise has an influence on the GE digestibility of the feed in ponies provided with equivalent levels of feed intake. In addition, the two markers used for estimating apparent DMD and OMD indicate that externally supplemented Ti is a suitable marker to determine digestibility of nutrients in horses performing exercise unlike dietary ADL.
Green Up The City! - Do urban greening initiatives lead to green gentrification in the Netherlands?
Bree, J. de; Heijmans, M. ; Michailidi, E. ; Negru, R.M. ; Pelgrim, I. ; Smith, A. ; Jacobs, J. ; Haas, W. de; Wentink, C.Q. - \ 2018
Design of triphasic poly(lactic-co-glycolic acid) nanoparticles containing a perfluorocarbon phase for biomedical applications
Swider, Edyta ; Staal, Alexander H.J. ; Riessen, N. Van; Jacobs, Linsey ; White, Paul B. ; Fokkink, Remco ; Janssen, Geert Jan ; Dinther, Eric Van; Figdor, Carl G. ; Vries, I.J.M. De; Koshkina, Olga ; Srinivas, Mangala - \ 2018
RSC Advances : An international journal to further the chemical sciences 8 (2018)12. - ISSN 2046-2069 - p. 6460 - 6470.
Poly(lactic-co-glycolic acid) (PLGA) particles are very widely used, particularly for drug delivery, including commercial clinical formulations. Adding perfluorocarbon (PFC) enables in vivo imaging and quantification of the PLGA particles through 19F NMR, MRS or MRI. PFCs are both hydrophobic and lipophobic at the same time. This property makes their encapsulation in particles challenging, as it requires the addition of a third immiscible phase during the emulsification process. Here we explore how different parameters affect the miniemulsion formation of particles loaded with perfluoro-15-crown-5-ether (PFCE). By changing the concentration of surfactant and type of solvent, we were able to control the radius of synthesized particles, between 85-200 nm. We assessed stability and release from the particles at different pH values, showing that hydrophobic agents are released from the particles by diffusion rather than degradation. With cell experiments, we show that primary human dendritic cells take up the particles without any apparent effect, including on cell migration. In summary, the control of synthesis conditions leads to particles with sufficient PFCE encapsulation, which are suitable for drug loading and cell labeling, and do not affect cell viability or functionality. Finally, these nanoparticles can be produced at GMP-grade for clinical use.
Wild, insectivorous bats might be carriers of Campylobacter spp.
Hazeleger, Wilma C. ; Jacobs-Reitsma, Wilma F. ; Lina, Peter H.C. ; Boer, Albert G. De; Bosch, Thijs ; Hoek, Angela H.A.M. Van; Beumer, Rijkelt R. - \ 2018
PLoS One 13 (2018)1. - ISSN 1932-6203
Background The transmission cycles of the foodborne pathogens Campylobacter and Salmonella are not fully elucidated. Knowledge of these cycles may help reduce the transmission of these pathogens to humans. Methodology/principal findings The presence of campylobacters and salmonellas was examined in 631 fresh fecal samples of wild insectivorous bats using a specially developed method for the simultaneous isolation of low numbers of these pathogens in small-sized fecal samples ( 0.1 g). Salmonella was not detected in the feces samples, but thermotolerant campylobacters were confirmed in 3% (n = 17) of the bats examined and these pathogens were found in six different bat species, at different sites, in different ecosystems during the whole flying season of bats. Molecular typing of the 17 isolated strains indicated C. jejuni (n = 9), C. coli (n = 7) and C. lari (n = 1), including genotypes also found in humans, wildlife, environmental samples and poultry. Six strains showed unique sequence types. Conclusion/significance This study shows that insectivorous bats are not only carriers of viral pathogens, but they can also be relevant for the transmission of bacterial pathogens. Bats should be considered as carriers and potential transmitters of Campylobacter and, where possible, contact between bats (bat feces) and food or feed should be avoided.
Carbon dioxide fluxes in the city centre of Arnhem, A middle-sized Dutch city
Kleingeld, Eva ; Hove, Bert van; Elbers, Jan ; Jacobs, Cor - \ 2018
Urban Climate 24 (2018). - ISSN 2212-0955 - p. 994 - 1010.
Carbon dioxide - Eddy-covariance - Flux variability - Long-term flux measurements - Source partitioning, emission inventory - Urban

This paper reports on the temporal variability of carbon dioxide fluxes in the city centre of Arnhem, a middle-sized Dutch city. The fluxes were continuously measured during four years (2012-2016) using the eddy-covariance method. Additionally, continuous meteorological measurements were carried out. We also analysed data from 30-minute traffic counts performed during those years. Results indicate that the city centre of Arnhem is a strong emission source of CO2 compared to many other cities. The measured annual CO2 flux equals about 8.0kgCm-2 yr-1. Heterogeneity within the footprint of the EC tower appeared to have no or only a small influence on the estimated annual and seasonal carbon fluxes. Sector analysis shows that CO2 fluxes are consistently higher in sectors with the highest built-up surface fraction. However, no statistically significant relationship could be determined. Traffic and space-heating related burning of natural gas are the main emission sources. Weekly and diurnal variations in CO2 flux are clearly correlated with traffic intensity, whereas seasonal variation can largely be explained by space heating demand. Partitioning of the total flux into a heating-related and traffic-related flux revealed that space heating accounts for up to 60% to the total flux during winter. Traffic intensity remains more or less constant throughout the year. In summer, when space heating is absent, CO2 emission is almost entirely related to traffic intensity. However, our estimations suggest that human respiration could have a non-negligible share in this. The contribution of the small fraction of urban green in the city centre is probably minimal. The annual emissions for the city centre estimated from our EC measurements are 20-25% lower than those reported for the whole city by the official emission inventory. Climate projections for the Netherlands suggest that in 2050 Heating Degree Days would be reduced by 27% resulting into a 32% reduction of the heating-related emission flux, without a change in fossil fuel use.

(Dis) integrated valuation – Assessing the information gaps in ecosystem service appraisals for governance support
Barton, D.N. ; Kelemen, E. ; Dick, J. ; Martin-Lopez, B. ; Gómez-Baggethun, E. ; Jacobs, S. ; Hendriks, C.M.A. ; Termansen, M. ; García- Llorente, M. ; Primmer, E. ; Dunford, R. ; Harrison, P.A. ; Turkelboom, F. ; Saarikoski, H. ; Dijk, J. Van; Rusch, G.M. ; Palomo, I. ; Yli-Pelkonen, V.J. ; Carvalho, L. ; Baró, F. ; Langemeyer, J. ; Tjalling Van Der Wal, J. ; Mederly, P. ; Priess, J.A. ; Luque, S. ; Berry, P. ; Santos, R. ; Odee, D. ; Martines Pastur, G. ; García Blanco, G. ; Saarela, S.R. ; Silaghi, D. ; Pataki, G. ; Masi, F. ; Vădineanu, A. ; Mukhopadhyay, R. ; Lapola, D.M. - \ 2018
Ecosystem Services 29 (2018)pt. C. - ISSN 2212-0416 - p. 529 - 541.
Integrated valuation - Ecosystem service appraisal - Ecosystem service governance - Information costs - Uncertainty - Valuation - Ecosystem services cascade
The operational challenges of integrated ecosystem service (ES) appraisals are determined by study purpose, system complexity and uncertainty, decision-makers’ requirements for reliability and accuracy of methods, and approaches to stakeholder–science interaction in different decision contexts. To explore these factors we defined an information gap hypothesis, based on a theory of cumulative uncertainty in ES appraisals. When decision context requirements for accuracy and reliability increase, and the expected uncertainty of the ES appraisal methods also increases, the likelihood of methods being used is expected to drop, creating a potential information gap in governance. In order to test this information gap hypothesis, we evaluate 26 case studies and 80 ecosystem services appraisals in a large integrated EU research project. We find some support for a decreasing likelihood of ES appraisal methods coinciding with increasing accuracy and reliability requirements of the decision-support context, and with increasing uncertainty. We do not find that information costs are the explanation for this information gap, but rather that the research project interacted mostly with stakeholders outside the most decision-relevant contexts. The paper discusses how alternative definitions of integrated valuation can lead to different interpretations of decision-support information, and different governance approaches to dealing with uncertainty.
Integrating methods for ecosystem service assessment : Experiences from real world situations
Dunford, Rob ; Harrison, Paula ; Smith, Alison ; Dick, Jan ; Barton, David N. ; Martin-Lopez, Berta ; Kelemen, Ezsther ; Jacobs, Sander ; Saarikoski, Heli ; Turkelboom, Francis ; Verheyden, Wim ; Hauck, Jennifer ; Antunes, Paula ; Aszalós, Réka ; Badea, Ovidu ; Baró, Francesc ; Berry, Pam ; Carvalho, Laurence ; Conte, Giulio ; Czúcz, Bálint ; Garcia Blanco, Gemma ; Howard, Dave ; Giuca, Relu ; Gomez-Baggethun, Erik ; Grizetti, Bruna ; Izakovicova, Zita ; Kopperoinen, Leena ; Langemeyer, Johannes ; Luque, Sandra ; Lapola, David M. ; Martinez-Pastur, Guillermo ; Mukhopadhyay, Raktima ; Roy, S.B. ; Niemelä, Jari ; Norton, Lisa ; Ochieng, John ; Odee, David ; Palomo, Ignacio ; Pinho, Patricia ; Priess, Joerg ; Rusch, Graciella ; Saarela, Sanna Riikka ; Santos, Rui ; Wal, Jan Tjalling van der; Vadineanu, Angheluta ; Vári, Ágnes ; Woods, Helen ; Yli-Pelkonen, Vesa - \ 2018
Ecosystem Services 29 (2018)pt. C. - ISSN 2212-0416 - p. 499 - 514.
The Ecosystem Services (ES) concept highlights the varied contributions the environment provides to humans and there are a wide range of methods/tools available to assess ES. However, in real-world decision contexts a single tool is rarely sufficient and methods must be combined to meet practitioner needs. Here, results from the OpenNESS project are presented to illustrate the methods selected to meet the needs of 24 real-world case studies and better understand why and how methods are combined to meet practical needs. Results showed that within the cases methods were combined to: i) address a range of ES; ii) assess both supply and demand of ES; iii) assess a range of value types; iv) reach different stakeholder groups v) cover weaknesses in other methods used and vi) to meet specific decision context needs. Methods were linked in a variety of ways: i) as input-output chains of methods; ii) through learning; iii) through method development and iv) through comparison/triangulation of results. The paper synthesises these case study-based experiences to provide insight to others working in practical contexts as to where, and in what contexts, different methods can be combined and how this can add value to case study analyses.
Occurrence of cyclic imines in European commercial seafood and consumers risk assessment
Rambla-Alegre, Maria ; Miles, Christopher O. ; Iglesia, Pablo de la; Fernandez-Tejedor, Margarita ; Jacobs, Silke ; Sioen, Isabelle ; Verbeke, Wim ; Samdal, Ingunn A. ; Sandvik, Morten ; Barbosa, Vera ; Tediosi, Alice ; Madorran, Eneko ; Granby, Kit ; Kotterman, Michiel ; Calis, Tanja ; Diogene, Jorge - \ 2018
Environmental Research 161 (2018). - ISSN 0013-9351 - p. 392 - 398.
Cyclic imines - Marine toxins - Mass spectrometry - Risk assessment - Shellfish
Cyclic imines constitute a quite recently discovered group of marine biotoxins that act on neural receptors and that bioaccumulate in seafood. They are grouped together due to the imino group functioning as their common pharmacore, responsible for acute neurotoxicity in mice. Cyclic imines (CIs) have not been linked yet to human poisoning and are not regulated in the European Union (EU), although the European Food Safety Authority (EFSA) requires more data to perform conclusive risk assessment for consumers. Several commercial samples of bivalves including raw and processed samples from eight countries (Italy, Portugal, Slovenia, Spain, Ireland, Norway, The Netherlands and Denmark) were obtained over 2 years. Emerging cyclic imine concentrations in all the samples were analysed on a LC-3200QTRAP and LC-HRMS QExactive mass spectrometer. In shellfish, two CIs, pinnatoxin G (PnTX-G) and 13-desmethylspirolide C (SPX-1) were found at low concentrations (0.1–12 µg/kg PnTX-G and 26–66 µg/kg SPX-1), while gymnodimines and pteriatoxins were not detected in commercial (raw and processed) samples. In summary, SPX-1 (n: 47) and PnTX-G (n: 96) were detected in 9.4% and 4.2% of the samples, respectively, at concentrations higher than the limit of quantification (LOQ), and in 7.3% and 31.2% of the samples at concentrations lower than the LOQ (25 µg/kg for SPX-1 and 3 µg/kg for PnTX-G), respectively. For the detected cyclic imines, the average exposure and the 95th percentile were calculated. The results obtained indicate that it is unlikely that a potential health risk exists through the seafood diet for CIs in the EU. However, further information about CIs is necessary in order to perform a conclusive risk assessment.
When we cannot have it all: Ecosystem services trade-offs in the context of spatial planning
Turkelboom, Francis ; Leone, Michael ; Jacobs, Sander ; Kelemen, Eszter ; García-Llorente, Marina ; Baró, Francesc ; Termansen, Mette ; Barton, David N. ; Berry, Pam ; Stange, Erik ; Thoonen, Marijke ; Kalóczkai, Ágnes ; Vadineanu, Angheluta ; Castro, Antonio J. ; Czúcz, Bálint ; Röckmann, Christine ; Wurbs, Daniel ; Odee, David ; Preda, Elena ; Gómez-Baggethun, Erik ; Rusch, Graciela M. ; Pastur, Guillermo Martínez ; Palomo, Ignacio ; Dick, Jan ; Casaer, Jim ; Dijk, Jiska Van; Priess, Joerg A. ; Langemeyer, Johannes ; Mustajoki, Jyri ; Kopperoinen, Leena ; Baptist, Martin J. ; Peri, Pablo Luis ; Mukhopadhyay, Raktima ; Aszalós, Réka ; Roy, S.B. ; Luque, Sandra ; Rusch, Verónica - \ 2018
Ecosystem Services 29 (2018)pt. C. - ISSN 2212-0416 - p. 566 - 578.
Trade-off analytical framework - Ecosystem use - Property regimers - Stakeholder responses - Real-world case studies
Spatial planning has to deal with trade-offs between various stakeholders’ wishes and needs as part of planning and management of landscapes, natural resources and/or biodiversity. To make ecosystem services (ES) trade-off research more relevant for spatial planning, we propose an analytical framework,
which puts stakeholders, their land-use/management choices, their impact on ES and responses at the centre. Based on 24 cases from around the world, we used this framing to analyse the appearance and diversity of real-world ES trade-offs. They cover a wide range of trade-offs related to ecosystem use, including: land-use change, management regimes, technical versus nature-based solutions, natural resource use, and management of species. The ES trade-offs studied featured a complexity that was far greater than what is often described in the ES literature. Influential users and context setters are at the core of the trade-off decision-making, but most of the impact is felt by non-influential users. Provisioning and cultural ES were the most targeted in the studied trade-offs, but regulating ES were the most impacted. Stakeholders’ characteristics, such as influence, impact faced, and concerns can partially explain their position and response in relation to trade-offs. Based on the research findings, we formulate recommendations for spatial planning.
Selecting methods for ecosystem service assessment : A decision tree approach
Harrison, Paula A. ; Dunford, Rob ; Barton, David N. ; Kelemen, Eszter ; Martín-López, Berta ; Norton, Lisa ; Termansen, Mette ; Saarikoski, Heli ; Hendriks, Kees ; Gómez-Baggethun, Erik ; Czúcz, Bálint ; García-Llorente, Marina ; Howard, David ; Jacobs, Sander ; Karlsen, Martin ; Kopperoinen, Leena ; Madsen, Andes ; Rusch, Graciela M. ; Eupen, Michiel van; Verweij, Peter ; Smith, Ron ; Tuomasjukka, Diana ; Zulian, Grazia - \ 2018
Ecosystem Services 29 (2018)pt. C. - ISSN 2212-0416 - p. 481 - 498.
Biophysical - Decision trees - Guidance - Method - Monetary - Socio-cultural - Tool
A range of methods are available for assessing ecosystem services. Methods differ in their aims; from mapping and modelling the supply and demand of ecosystem services to appraising their economic and non-economic importance through valuation techniques. Comprehensive guidance for the selection of appropriate ecosystem service assessment methods that address the requirements of different decision-making contexts is lacking. This paper tackles this gap using the experience from 27 case studies which applied different biophysical, socio-cultural and monetary valuation methods to operationalise the ecosystem service concept towards sustainable land, water and urban management. A survey of the reasons why the case study teams selected particular methods revealed that stakeholder-oriented reasons, such as stakeholder participation, inclusion of local knowledge and ease of communication, and decision-oriented reasons, such as the purpose of the case study and the ecosystem services at stake, were key considerations in selecting a method. Pragmatic reasons such as available data, resources and expertise were also important factors. This information was used to develop a set of linked decision trees, which aim to provide guidance to researchers and practitioners in choosing ecosystem service assessment methods that are suitable for their context.
Playing language games: higher education quality dynamics in Dutch national policies since 1985
Weenink, Kasja ; Aarts, Noelle ; Jacobs, Sandra - \ 2017
Critical Policy Studies (2017). - ISSN 1946-0171 - p. 1 - 21.
Higher education quality is a vague, ambiguous, multiple, and essentially contested concept. Quality’s contested character involves endless disputes about its proper use which makes it problematic to handle in governmental policies. Wittgenstein’s notion of language games is used to understand how, through time, higher education quality is enacted in Dutch governmental policy texts, and how its uses are related to each other. The analysis depicts various quality games interacting with different policy contexts, which show multiple enactments of quality as a unified concept alongside more differentiated uses. In the policy games, quality is not the focal notion. The games center around the steering relationship with the institutions, which are placed ‘at distance’. Through time, the games respond to increasing societal complexity and competition, and foster further flexibilization of institutional policies regarding quality and accessibility. In this management discourse with the institutions, quality is not used contrastively. It is concluded that quality’s vague and contradictory enactments and valuations are not problematic in the institutional steering relationship. Recent policy texts however relate quality’s ‘proper use’ to activities that enhance the student’s learning process. This draws attention to paradoxes for a distancing government in its role as a universal actor with societal responsibilities.
Bioeconomy with algae - Life cycle sustainability assessment including biophysical climate impacts (ALBEDO) of an algae-based biorefinery
Hingsamer, Maria ; Bird, Neil ; Kaltenegger, Ingrid ; Jungmeier, Gerfried ; Kleinegris, Dorinde ; Lamers, Packo ; Boussiba, Sammy ; Rodolfi, Liliana ; Norsker, Niels Henrik ; Jacobs, Fons ; Fenton, Marcus ; Ranjbar, Reza ; Hujanen, Mervi ; Sanz, Macarena - \ 2017
European Biomass Conference and Exhibition Proceedings 2017 (2017)25thEUBCE. - ISSN 2282-5819 - p. 1453 - 1455.
Albedo - Biorefinery - Greenhouse gases (GHG) - Life cycle sustainability assessment - Microalgae
The viability of using microalgae for energy production depends on the overall sustainability (environmental, economic, social). The project FUEL4ME applies a life cycle sustainability assessment (LCSA) providing scientific indicators for economic (e.g. operational costs, investment cost, trade effects, effects on employment), environmental (global warming potential, cumulated primary energy demand, land use) and social aspects (e.g. regional cooperations, product responsibility, labour practices) of an algae-based biorefinery (production of biofuels and PUFAs). Climate change impacts usually focus only on the bio/chemical contribution (i.e. greenhouse gases) but within FUEL4ME biophysical climate impacts due to albedo change were included in the assessment of the global warming potential. A comparison using the LCSA results of a modelled full scale commercial FUEL4ME process was made to analyse the gap between the current TRL and guiding values for TRL 9. Due to actual demonstrated state of technology (current TRL) further technology development is needed.
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