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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An intensive tree-ring experience : Connecting education and research during the 25th European Dendroecological Fieldweek (Asturias, Spain)
Sánchez-Salguero, Raúl ; Hevia, Andrea ; Camarero, J.J. ; Treydte, Kerstin ; Frank, Dave ; Crivellaro, Alan ; Domínguez-Delmás, Marta ; Hellman, Lena ; Kaczka, Ryszard J. ; Kaye, Margot ; Akhmetzyanov, Linar ; Ashiq, Muhammad Waseem ; Bhuyan, Upasana ; Bondarenko, Olesia ; Camisón, Álvaro ; Camps, Sien ; García, Vicenta Constante ; Vaz, Filipe Costa ; Gavrila, Ionela G. ; Gulbranson, Erik ; Huhtamaa, Heli ; Janecka, Karolina ; Jeffers, Darren ; Jochner, Matthias ; Koutecký, Tomáš ; Lamrani-Alaoui, Mostafa ; Lebreton-Anberrée, Julie ; Seijo, María Martín ; Matulewski, Pawel ; Metslaid, Sandra ; Miron, Sergiu ; Morrisey, Robert ; Opdebeeck, Jorgen ; Ovchinnikov, Svyatoslav ; Peters, Richard ; Petritan, Any M. ; Popkova, Margarita ; Rehorkova, Stepanka ; Ariza, María O.R. ; Sánchez-Miranda, Ángela ; Linden, Marjolein Van der; Vannoppen, Astrid ; Volařík, Daniel - \ 2017
Dendrochronologia 42 (2017). - ISSN 1125-7865 - p. 80 - 93.
Dendroarchaeology - Dendrochronology - Dendroclimatology - Dendroecology - Dendrogeomorphology - Plant anatomy
The European Dendroecologial Fieldweek (EDF) provides an intensive learning experience in tree-ring research that challenges any participant to explore new multidisciplinary dendro-sciences approaches within the context of field and laboratory settings. Here we present the 25th EDF, held in Asturias, NW Spain, in summer 2014. The course, with 33 participants and 10 instructors from 18 countries included advanced training in dendrochronology skills, an overview of tree-ring broad fields and methodological basics to deal with specific research questions as well as applied advanced micro-projects in dendroarchaeology (DAR), dendroclimatology (DCL), dendrogeomorphology (DGM), forest dynamic (FD) and plant anatomy (PA). The results demonstrated the potential of tree-ring research in the Asturias region. The DAR group researched archaeological samples from different contexts (Oviedo cathedral choir stalls, Segovia cathedral roof timbers, Ribadeo shipwreck ship timbers and Bronze Age site charcoal) and explored the supply of wood in different periods. The DCL group established that the Quercus robur and Castanea sativa ring-width measurements show weak climate-growth correlations, where for many trees this is likely caused by management. The strength of the climatic signal could be enhanced using undisturbed settings. The DGM group found that Corylus avellana and Salix spp. are challenging species for dendrogeomorphological studies. Debris-flow events were detected by the presence of tension wood, growth reduction and scars, and their incidences were also supported by local meteorological data. The FD group found that tree growth decreases with increasing competition, a pattern more pronounced in C. sativa than in Pinus sylvestris forest plantations. The results indicate that wood production could be increased by applying thinning treatments on C. sativa. The PA group showed that xylem conduits and phloem area are organized according to the common needs for water supply to leaves and obtain photosynthetic products, regardless site growing conditions for P. sylvestris and Tusilago farfara. In conclusion, this EDF has been a model for interdisciplinary research and international collaboration that has demonstrated that high-quality research and education can be conducted within one week. The EDFs provide an important service to the dendrochronological community and demonstrate the usefulness of this educational-scientific and multi-cultural experience.
Mild disintegration of the green microalgae Chlorella vulgaris using bead milling
Postma, P.R. ; Miron, T.L. ; Olivieri, G. ; Barbosa, M.J. ; Wijffels, R.H. ; Eppink, M.H.M. - \ 2015
Bioresource Technology 184 (2015). - ISSN 0960-8524 - p. 297 - 304.
protein aggregation - cell disruption - microbial-cells - release - food - biomass - purification - extraction - economics - products
In this work, the mild disintegration of the microalgae Chlorella vulgaris for the release of intracellular products has been studied. By means of bead milling the microalgae suspensions were successfully disintegrated at different biomass concentrations (25–145 gDW kg-1) over a range of agitator speeds (6–12 m s-1). In all cases over 97% of cell disintegration was achieved resulting in a release of water soluble proteins. A clear optimum rate of disintegration and protein release was observed at an agitator speed of 9–10 m s-1 regardless of the biomass concentration. Selective extraction of water soluble proteins was observed as proteins released sooner than cell disintegration took place. Proteins could be released at 85% lower energy input than for cell disintegration resulting in specific energy consumptions well below 2.5 kWh kgDW-1.
Mild disintegration of the green microalgae Chlorella vulgaris using bead milling
Postma, P.R. ; Miron, T.L. ; Olivieri, G. ; Barbosa, M.J. ; Wijffels, R.H. ; Eppink, M.H.M. - \ 2014
Thermophilic sulphate reduction in upflow anaerobic sludge bed reactors under acidifying conditions
Sipma, J. ; Lens, P.N.L. ; Vieira, A. ; Miron, Y. ; Lier, J.B. van; Lettinga, G. - \ 2000
Process Biochemistry 35 (2000)5. - ISSN 1359-5113 - p. 509 - 522.
The role of sludge retention time in the hydrolysis and acidification of lipids, carbohydrates and proteins during digestion of primary sludge in CSTR systems
Miron, Y. ; Zeeman, G. ; Lier, J.B. van; Lettinga, G. - \ 2000
Water Research 34 (2000)5. - ISSN 0043-1354 - p. 1705 - 1713.
afvalwaterbehandeling - rioolslib - anaërobe behandeling - koolhydraten - lipiden - eiwitten - verzuring - hydrolyse - waste water treatment - sewage sludge - anaerobic treatment - carbohydrates - lipids - proteins - acidification - hydrolysis
CSTR systems: completely stirred tank reactor systems
De omzetting van vetten, eiwitten en koolhydraten bij de vergisting van primair slib: effect van verzurende en methanogene condities.
Zeeman, G. ; Miron, Y. ; Lier, J.B. van; Lettinga, G. - \ 1998
In: TCA-symposium: duurzame behandeling van organische reststoffen, de rol van anaerobe gisting, Beekbergen, The Netherlands (1998)
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