Searched for: subject:"Nutrients"
(1 - 20 of 52)

Pages

document
Yu, L. (author), Rozemeijer, J.C. (author), van der Velde, Y. (author), van Breukelen, B.M. (author), Ouboter, M. (author), Broers, H.P. (author)
Urban areas in coastal lowlands host a significant part of the world's population. In these areas, cities have often expanded to unfavorable locations that have to be drained or where excess rain water and groundwater need to be pumped away in order to maintain dry feet for its citizens. As a result, groundwater seepage influences surface water...
article 2019
document
Saaltink, R.M. (author), Honingh, E. (author), Dekker, S.C. (author), Griffioen, J. (author), van Riel, M.C. (author), Verdonschot, P.F.M. (author), Vink, J.P.M. (author), Winterwerp, J.C. (author), Wassen, M.J. (author)
This study investigates the potential of bioturbating Tubificidae to alter biogeochemical processes by sediment aeration in order to enhance ecosystem development in eco-engineering projects. We introduced Tubificidae in three different densities in clay-rich sediment from lake Markermeer . Redox potential, nutrients and major elements were...
article 2019
document
Saaltink, R.M. (author), Dekker, S.C. (author), Griffioen, J. (author), Wassen, M.J. (author)
Understanding how the hydrological regime in relation to sediment type interferes with ecosystem development is important when wetlands are created with soft muddy material. Especially when plants are used as ecological engineers to promote crest stability and soil formation. We carried out a two-year mesocosm experiment with sediments derived...
article 2018
document
Saaltink, R.M. (author), Honingh, E. (author), Dekker, S.C. (author), Griffioen, J. (author), van Riel, M.C. (author), Verdonschot, P.F.M. (author), Vink, J.P.M. (author), Winterwerp, J.C. (author), Wassen, M.J. (author)
This study investigates the potential of bioturbating Tubificidae to alter biogeochemical processes by sediment aeration in order to enhance ecosystem development in eco-engineering projects. We introduced Tubificidae in three different densities (5000, 15,000, and 30,000 individuals m−2) in clay-rich sediment from lake Markermeer (The...
article 2018
document
Alleleyn, A.M.E. (author), van Avesaat, M. (author), Ripken, D. (author), Bleiel, S.B. (author), Keszthelyi, D. (author), Wilms, E. (author), Troost, F.J. (author), Hendriks, H.F.J. (author), Masclee, A.A.M. (author)
Activation of the intestinal brake by infusing nutrients into the distal small intestine with catheters inhibits food intake and enhances satiety. Encapsulation of macronutrients, which protects against digestion in the proximal gastrointestinal tract, can be a non-invasive alternative to activate this brake. In this study, we investigate the...
article 2018
document
Fraters, D. (author), Boom, G.J.F.L. (author), Boumans, L.J.M. (author), de Weerd, H. (author), Wolters, M. (author)
The solute concentration in the subsoil beneath the root zone is an important parameter for leaching assessment. Drainage centrifugation is considered a simple and straightforward method of determining soil solution chemistry. Although several studies have been carried out to determine whether this method is robust, hardly any results are...
article 2017
document
Krul, L. (author), Kremer, B.H.A. (author), Lucas Luijckx, N.B. (author), Leeman, W.R. (author)
The EU Food Supplements Directive (2002/46/EC) mandates the determination of both maximum and minimum permitted levels (MPLs) for micronutrients. In order to determine MPLs which are feasible for particular population groups, a scientific approach should be used in which risk of high intake, risk of inadequacy and benefits are assessed in an...
article 2017
document
Ripken, D. (author), van der Wielen, N. (author), Wortelboer, H.M. (author), Meijerink, J. (author), Witkamp, R.F. (author), Hendriks, H.F.J. (author)
Glucagon like peptide-1 (GLP-1) and serotonin are both involved in food intake regulation. GLP-1 release is stimulated upon nutrient interaction with G-protein coupled receptors by enteroendocrine cells (EEC), whereas serotonin is released from enterochromaffin cells (ECC). The central hypothesis for the current study was that nutrient-induced...
article 2016
document
van Geer, F.C. (author), Kronvang, B. (author), Broers, H.P. (author)
Four sessions on "Monitoring Strategies: temporal trends in groundwater and surface water quality and quantity" at the EGU conferences in 2012, 2013, 2014, and 2015 and a special issue of <i>HESS</i> form the background for this overview of the current state of high-resolution monitoring of nutrients. The overview includes a summary of...
article 2016
document
Higuera, G.A. (author), Fernandes, H. (author), Spitters, T.W.G.M. (author), van de Peppel, J. (author), Aufferman, N. (author), Truckenmueller, R. (author), Stoop, R. (author), van Leeuwen, J.P. (author), de Boer, J. (author), Subramaniam, V. (author), Karperien, M. (author), van Blitterswijk, C. (author), van Boxtel, A. (author), Moroni, L. (author)
Cells and tissues are intrinsically adapted to molecular gradients and use them to maintain or change their activity. The effect of such gradients is particularly important for cell populations that have an intrinsic capacity to differentiate into multiple cell lineages, such as bone marrow derived mesenchymal stromal cells (MSCs). Our results...
article 2015
document
Raiten, D.J. (author), Sakr Ashour, F.A. (author), Ross, A.C. (author), Meydani, S.N. (author), Dawson, H.D. (author), Stephensen, C.B. (author), Brabin, B.J. (author), Suchdev, P.S. (author), van Ommen, B. (author), Ahluwalia, N. (author), Ahmed, T. (author), Allen, L. (author), Beck, M. (author), Blanchard, H. (author), Brindle, E. (author), Brown, K. (author), Calder, P. (author), Checkley, W. (author), Claycombe, K. (author), Coles, C. (author), Esamai, F. (author), Friis, H. (author), Gardner, E. (author), Grinspoon, S. (author), Guerrant, R. (author), Hellerstein, M. (author), Hunt, J. (author), King, J. (author), Klasing, K. (author), Kramer, B. (author), Koski, K. (author), Northrop-Clewes, C. (author), Pfeiffer, C. (author), Prentice, A. (author), Ramirez-Zea, M. (author), van Rheenan, P. (author), Rink, L. (author), Srinivasa, S. (author), Benn, C.S. (author), Stephensen, C. (author), Suchdev, P. (author), Sullivan, K. (author), Thurnham, D. (author), Varadhan, R. (author), Van Der Ven, A. (author), Walston, J. (author), Xia, J. (author)
An increasing recognition has emerged of the complexities of the global health agenda-specifically, the collision of infections and noncommunicable diseases and the dual burden of over- and undernutrition. Of particular practical concern are both 1) the need for a better understanding of the bidirectional relations between nutritional status and...
article 2015
document
Minekus, M. (author)
The TNO Gastro–Intestinal Model (TIM) is a multi–compartmental model, designed to realistically simulate conditions in the lumen of the gastro–intestinal tract. TIM is successfully used to study the gastro–intestinal behavior of a wide variety of feed, food and pharmaceutical products. Experiments in TIM are based on a computer simulation of the...
bookPart 2015
document
Kaput, J. (author), van Ommen, B. (author), Kremer, S.H.A. (author), Priami, C. (author), Pontes Monteiro, J. (author), Morine, M. (author), Pepping, F. (author), Diaz, Z. (author), Fenech, M. (author), He, Y. (author), Albers, R. (author), Drevon, C.A. (author), Evelo, C.T. (author), Hancock, R.E.W. (author), IJsselmuiden, C. (author), Lumey, L.H. (author), Minihane, A.M. (author), Muller, M. (author), Murgia, C. (author), Radonjic, M. (author), Sobral, B. (author), West Jr., K.P. (author)
Nutrition research, like most biomedical disciplines, adopted and often uses experimental approaches based on Beadle and Tatum’s one gene—one polypeptide hypothesis, thereby reducing biological processes to single reactions or pathways. Systems thinking is needed to understand the complexity of health and disease processes requiring measurements...
article 2014
document
Minekus, M. (author), Alminger, M. (author), Alvito, P. (author), Ballance, S. (author), Bohn, T. (author), Bourlieu, C. (author), Carrière, F. (author), Boutrou, R. (author), Corredig, M. (author), Dupont, D. (author), Dufour, C. (author), Egger, L. (author), Golding, M. (author), Karakaya, S. (author), Kirkhus, B. (author), Le Feunteun, S. (author), Lesmes, U. (author), MacIerzanka, A. (author), MacKie, A. (author), Marze, S. (author), McClements, D.J. (author), Ménard, O. (author), Recio, I. (author), Santos, C.N. (author), Singh, R.P. (author), Vegarud, G.E. (author), Wickham, M.S.J. (author), Weitschies, W. (author), Brodkorb, A. (author)
Simulated gastro-intestinal digestion is widely employed in many fields of food and nutritional sciences, as conducting human trials are often costly, resource intensive, and ethically disputable. As a consequence, in vitro alternatives that determine endpoints such as the bioaccessibility of nutrients and non-nutrients or the digestibility of...
article 2014
document
Berg, S. (author), Leng, M.J. (author), Kendrick, C.P. (author), Cremer, H. (author), Wagner, B. (author)
Organic carbon occluded in diatom silica is assumed to be protected from degradation in the sediment. δ13C from diatom carbon (δ13C(diatom)) therefore potentially provides a signal of conditions during diatom growth. However, there have been few studies based on δ13C(diatom). Numerous variables can influence δ13C of organic matter in the marine...
article 2013
document
Heyer, A. (author), D'Souza, F. (author), Morales, C.F.L. (author), Ferrari, G. (author), Mol, J.M.C. (author), de Wit, J.H.W. (author)
Microbiologically Influenced Corrosion (MIC) is the term used for the phenomenon in which corrosion is initiated and/or accelerated by the activities of microorganisms. MIC is a very serious problem for the ship industry as it reduces structural lifetime in combination with safety risks for crewmembers or inspection personal and increases...
article 2013
document
Griffioen, J. (author), Vermooten, S. (author), Janssen, G. (author)
With the exception of the south of the country, the Netherlands has a strong bipartite hydrogeology: the Holocene part with a coastal dune belt and confining top layer of clay and peat further inland, and the Pleistocene, where thick phreatic aquifers dominate. This research aimed to ascertain the geochemical and palaeohydrological controls on...
article 2013
document
Wijte, D. (author), van Baar, B.L.M. (author), Heck, A.J.R. (author), Altelaar, A.F.M. (author)
To enhance target production from biocatalysts, it is necessary to thoroughly understand the molecular mechanisms involved in production, degradation, and, importantly, adaptation to the required environment. One such bacterium with high potential for biocatalysis is the solvent-tolerant bacteria Pseudomonas putida S12, which, among others, is...
article 2011
document
van Geer, F. (author), Rozemeijer, J. (author), van der Velde, Y. (author), Broers, H.P. (author), de Rooij, G. (author)
As part of two PhD projects, we installed ion-selective electrodes and passive samplers for monitoring nitrate concentrations in a 7 km 2 catchment and compared the results to grab samples. We also monitored nitrate concentrations at the catchment outlet. We tested the effectiveness of these monitoring approaches to estimate the long-term...
conference paper 2011
document
Höntzsch, S. (author), Scheibner, C. (author), Guasti, E. (author), Kuss, J. (author), Marzouk, A.M. (author), Rasser, M.W. (author)
The evolution of the isolated Galala carbonate platform has been studied intensively with respect to the Paleocene-Eocene Thermal Maximum (PETM) and the strong climatic variability from the Late Paleocene to the Early Eocene. In this study, we compare the results of different approaches which deal with the Early Palaeogene evolution of the...
article 2011
Searched for: subject:"Nutrients"
(1 - 20 of 52)

Pages