Searched for: subject:"time%5C+series%5C+analysis"
(1 - 15 of 15)
document
Pennings, H.J.M. (author), Brekelmans, M. (author), Sadler, P. (author), Claessens, L.C.A. (author), van der Want, A.C. (author), van Tartwijk, J. (author)
Teacher-student relationships play a crucial role in the quality of teaching and learning. Daily interpersonal interactions in classrooms are the building blocks of teacher-student relationships. With the aim to add to insights on teaching and learning, we specifically explored interpersonal adaptation in daily interactions. Adaptation, i.e.,...
article 2018
document
Kaduk, M. (author), Hoefsloot, H.C.J. (author), Vis, D.J. (author), Reijmers, T. (author), van der Greef, J. (author), Smilde, A.K. (author), Hendriks, M.M.W.B. (author)
Modern chromatography-based metabolomics measurements generate large amounts of data in the form of abundances of metabolites. An increasingly popular way of representing and analyzing such data is by means of association networks. Ideally, such a network can be interpreted in terms of the underlying biology. A property of chromatography-based...
article 2014
document
Mei, L. (author), Xue, Y. (author), de Leeuw, G. (author), Holzer-Popp, T. (author), Guang, J. (author), Li, Y. (author), Yang, L. (author), Xu, H. (author), Xu, X. (author), Li, C. (author), Wang, Y. (author), Wu, C. (author), Hou, T. (author), He, X. (author), Liu, J. (author), Dong, J. (author), Chen, Z. (author)
A novel approach for the joint retrieval of aerosol optical depth (AOD) and aerosol type, using Meteosat Second Generation-Spinning Enhanced Visible and Infrared Imagers (MSG/SEVIRI) observations in two solar channels, is presented. The retrieval is based on a Time Series (TS) technique, which makes use of the two visible bands at 0.6 μm and 0.8...
article 2012
document
van Delft, J.H.M. (author), Mathijs, K. (author), Staal, Y.C.M. (author), van Herwijnen, M.H.M. (author), Brauers, K.J.J. (author), Boorsma, A. (author), Kleinjans, J.C.S. (author), TNO Kwaliteit van Leven (author)
Chemical carcinogens may cause a multitude of effects inside cells, thereby affecting transcript levels of genes by direct activation of transcription factors (TF) or indirectly through the formation of DNA damage. As the temporal profiles of these responses may be profoundly different, examining time-dependent changes may provide new insights...
article 2010
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Smilde, A.K. (author), Westerhuis, J.A. (author), Hoefsloot, H.C.J. (author), Bijlsma, S. (author), Rubingh, C.M. (author), Vis, D.J. (author), Jellema, R.H. (author), Pijl, H. (author), Roelfsema, F. (author), van der Greef, J. (author), TNO Kwaliteit van Leven (author)
In metabolomics, time-resolved, dynamic or temporal data is more and more collected. The number of methods to analyze such data, however, is very limited and in most cases the dynamic nature of the data is not even taken into account. This paper reviews current methods in use for analyzing dynamic metabolomic data. Moreover, some methods from...
article 2010
document
van der Grift, B. (author), Griffioen, J. (author), TNO Bouw en Ondergrond (author)
Historic emissions from ore smelters typically cause regional soil contamination. We developed a modelling approach to assess the impact of such contamination on groundwater and surface water load, coupling unsaturated zone leaching modelling with 3D groundwater transport modelling. Both historic and predictive modelling were performed, using a...
article 2008
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Fransman, W. (author), Roeleveld, N. (author), Peelen, S. (author), de Kort, W. (author), Kromhout, H. (author), Heederik, D. (author), TNO Kwaliteit van Leven (author)
BACKGROUND: Nurses and other hospital workers are exposed to antineoplastic drugs during daily activities. Previous studies suggest that antineoplastic drugs at occupational exposure levels may be toxic to reproduction, but these studies are not consistent or conclusive. METHODS: Self-administered questionnaires were completed by 4393 exposed...
article 2007
document
Nueda, M.J. (author), Conesa, A. (author), Westerhuis, J.A. (author), Hoefsloot, H.C.J. (author), Smilde, A.K. (author), Talón, M. (author), Ferrer, A. (author), TNO Kwaliteit van Leven (author)
Motivation: Designed microarray experiments are used to investigate the effects that controlled experimental factors have on gene expression and learn about the transcriptional responses associated with external variables. In these datasets, signals of interest coexist with varying sources of unwanted noise in a framework of (co)relation among...
article 2007
document
Berendrecht, W.L. (author), Heemink, A.W. (author), van Geer, F.C. (author), Gehrels, J.C. (author), TNO Bouw en Ondergrond (author)
A non-linear state space model is developed for describing groundwater fluctuations. Non-linearity is introduced by modeling the (unobserved) degree of water saturation of the root zone. The non-linear relations are based on physical concepts describing the dependence of both the actual evapotranspiration and the percolation rate on the degree...
article 2006
document
Olthof, M.R. (author), van Vliet, T. (author), Verhoef, P. (author), Zock, P.L. (author), Katan, M.B. (author), TNO Kwaliteit van Leven (author)
Background: Betaine (trimethylglycine) lowers plasma homocysteine, a possible risk factor for cardiovascular disease. However, studies in renal patients and in obese individuals who are on a weight-loss diet suggest that betaine supplementation raises blood cholesterol; data in healthy individuals are lacking. Such an effect on cholesterol would...
article 2005
document
Rhebergen, J.B. (author), van Wijk, R. (author)
During the past couple of years, several GPR data sets have been acquired at the TNO-FEL test-site "Waalsdorp". Simultaneously a detection algorithm, based on autoregressive modelling has been developed and implemented. This algorithm first determines a measure of the information content of data from known mine locations, by means of minimum...
conference paper 2004
document
Wijnands, M.V.W. (author), van Erk, M.J. (author), Doornbos, R.P. (author), Krul, C.A.M. (author), Woutersen, R.A. (author)
The effects of different dietary compounds on the formation of aberrant crypt foci (ACF) and colorectal tumours and on the expression of a selection of genes were studied in rats. Azoxymethane-treated male F344 rats were fed either a control diet or a diet containing 10% wheat bran (WB), 0.2% curcumin (CUR), 4% rutin (RUT) or 0.04% benzyl...
article 2004
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Visser, O. (author), Busquet, E.H. (author), van Leeuwen, F.E. (author), Aaronson, N.K. (author), Öry, F.G. (author), TNO Preventie en Gezondheid (author)
Objective. To describe the incidence of cervical cancer in women in North-Holland by country of birth. Design. Descriptive epidemiological study based on data from cancer registries. Method. The number of cases of cervical cancer in North-Holland for the period 1988-1998 was determined using data from the regional cancer registry of the...
article 2003
document
Berendrecht, W.L. (author), Heemink, A.W. (author), van Geer, F.C. (author), Gehrels, J.C. (author)
A state-space representation of the transfer function-noise (TFN) model allows the choice of a modeling (input) interval that is smaller than the measuring interval of the output variable. Since in geohydrological applications the interval of the available input series (precipitation excess) is often smaller than the interval of the output...
article 2003
document
van Geer, F.C. (author), Zuur, A.F. (author), Nederlands Instituut voor Toegepaste Geowetenschappen TNO (author)
This paper advocates an approach to extend single-output Box-Jenkins transfer/noise models for several groundwater head series to a multiple-output transfer/noise model. The approach links several groundwater head series and enables a spatial interpolation in terms of time series analysis. Our multiple-output transfer/noise model relates the...
article 1997
Searched for: subject:"time%5C+series%5C+analysis"
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