Searched for: subject:"Analysis%5C+of%5C+variance"
(1 - 20 of 104)

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Kooter, I.M. (author), Grollers-Mulderij, M. (author), Duistermaat, E. (author), Kuper, C.F. (author)
Mucilair 3D bronchial airway models, cultured at an air-liquid interface, were exposed to aerosols of copper oxide (CuO) nanoparticles in Vitrocell air exposure modules. Four cell donors, four exposure modules and four exposure concentrations were varied within four different exposure sessions using a statistical experimental design called a...
article 2017
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TNO Kwaliteit van Leven (author), Molag, M.L. (author), de Vries, J.H.M. (author), Duif, N. (author), Ocké, M.C. (author), Dagnelie, P.C. (author), Goldbohm, R.A. (author), van 't Veer, P. (author)
The authors automated the selection of foods in a computer system that compiles and processes tailored FFQ. For the selection of food items, several methods are available. The aim of the present study was to compare food lists made by MOM2, which identifies food items with highest between-person variance in intake of the nutrients of interest...
article 2010
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Verouden, M.P.H. (author), Westerhuis, J.A. (author), van der Werf, M.J. (author), Smilde, A.K. (author), TNO Kwaliteit van Leven (author)
In metabolomics research a large number of metabolites are measured that reflect the cellular state under the experimental conditions studied. In many occasions the experiments are performed according to an experimental design to make sure that sufficient variation is induced in the metabolite concentrations. However, as metabolomics is a...
article 2009
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van Buuren, S. (author), Ooms, J.C.L. (author), TNO Kwaliteit van Leven (author)
This paper presents a method for calculating stage line diagrams, a novel type of reference diagram useful for tracking developmental processes over time. Potential fields of applications include: dentistry (tooth eruption), oncology (tumor grading, cancer staging), virology (HIV infection and disease staging), psychology (stages of cognitive...
article 2009
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Zijlstra, N. (author), de Wijk, R.A. (author), Mars, M. (author), Stafleu, A. (author), de Graaf, C. (author), TNO Kwaliteit van Leven (author)
article 2009
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van der Burg, E. (author), Olivers, C.N.L. (author), Bronkhorst, A.W. (author), Theeuwes, J. (author), TNO Defensie en Veiligheid (author)
The majority of studies investigating interactions between vision and touch have typically explored single events, presenting one object at a time. The present study investigates how tactile-visual interactions affect competition between multiple visual objects in more dynamic cluttered environments. Participants searched for a horizontal or...
article 2009
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Kuper, C.F. (author), Heijne, W.H. (author), Dansen, M. (author), Verhoeckx, K.C. (author), Boorsma, A. (author), Radonjic, M. (author), Bruijntjes, J. (author), Stierum, R. (author), Muijser, H. (author), Arts, J.H. (author), TNO Kwaliteit van Leven (author)
To contribute to the hazard identification of low molecular weight (LMW) respiratory allergens, respiratory allergy induced by trimellitic anhydride (TMA) was characterized by whole genome analysis of lung tissue and blood proteomics in Brown Norway rats. Dermal sensitization (50% and 25% w/v) with TMA and an inhalation challenge of 15 mg/m(3)...
article 2008
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de Wijk, R.A. (author), Zijlstra, N. (author), Mars, M. (author), de Graaf, C. (author), Prinz, J.F. (author), TNO Kwaliteit van Leven (author)
Two studies investigated the effect of a food's viscosity on bite size, bite effort and food intake using a standardized protocol in which subjects sipped through a straw every 20 s for a period of 15 min from one of two products, a chocolate-flavored dairy drink and a chocolate-flavored dairy semi-solid, matched for energy density. In the first...
article 2008
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Stiggelbout, M. (author), Hopman-Rock, M. (author), van Mechelen, W. (author), TNO Kwaliteit van Leven (author)
This study reports entry correlates and motivations of older adults participating in organized exercise programs in the Netherlands, as determined in a descriptive explorative study (N = 2,350, response rate 86%). Participants were community-dwelling older adults (50+ years) who enrolled and started in 10 different exercise programs. Entiy...
article 2008
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TNO Kwaliteit van Leven (author), Beckers, D.G.J. (author), van Hooff, M.L.M. (author), van der Linden, D. (author), Kompier, M.A.J. (author), Taris, T.W. (author), Geurts, S.A.E. (author)
Objectives: This study aimed at opening up the black box of overtime work among university faculty members by providing information on (i) when faculty members work overtime, (ii) what activities are undertaken during overtime, and (iii) how overtime is experienced. Methods: Data were collected among 120 Dutch faculty members who completed a...
article 2008
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Jans, M.P. (author), Proper, K.I. (author), Hildebrandt, V.H. (author), TNO Kwaliteit van Leven (author)
Background: Sedentary behavior is an independent risk factor for excess body weight and other health problems. There are no published data on sitting time at work, or how this is related to occupation and sector (branch of business). No published study has shown whether extended sitting at work is compensated for by sitting less during leisure...
article 2007
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Hooff, M.L.M. (author), Geurts, S.A.E. (author), Kompier, M.A.J. (author), Taris, T.W. (author)
Objectives: Effort-recovery theory (Meijman and Mulder in Handbook of work and organizational psychology, Psychology Press/Erlbaum, Hove, pp 5-33, 1998 proposes that effort expenditure may have adverse consequences for health in the absence of sufficient recovery opportunities. Thus, insight in the relationships between effort and recovery is...
article 2007
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Lammers, J.H.C.M. (author), Emmen, H.H. (author), Muijser, H. (author), Hoogendijk, E.M.G. (author), McKee, R.H. (author), Owen, D.E. (author), Kulig, B.M. (author), TNO Kwaliteit van Leven (author)
To evaluate the neurobehavioral effects of hydrocarbon solvents and to establish a working model for extrapolating animal test data to humans, studies were conducted which involved inhalation exposure of rats and humans to white spirit (WS). The specific objectives of these studies were to evaluate the behavioral effects of exposure to WS in...
article 2007
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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
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Vis, D.J. (author), Westerhuis, J.A. (author), Smilde, A.K. (author), van der Greef, J. (author), TNO Kwaliteit van Leven (author)
Background: Innovative extensions of (M) ANOVA gain common ground for the analysis of designed metabolomics experiments. ASCA is such a multivariate analysis method; it has successfully estimated effects in megavariate metabolomics data from biological experiments. However, rigorous statistical validation of megavariate effects is still...
article 2007
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Grootenhuis, M.A. (author), Koopman, H.M. (author), Verrips, G.H.W. (author), Vogels, A.G.C. (author), Last, B.F. (author), TNO Kwaliteit van Leven (author)
In paediatric research, Health-Related Quality-of-Life (HRQoL) has received increasing recognition as an important health outcome. This study aimed to investigate the nature and prevalence of HRQoL problems in children with different chronic diseases. Data were available on 318 children aged 8-11 years with different diseases: congenital heart...
article 2007
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Dekkers, S. (author), Telman, J. (author), Rennen, M.A.J. (author), Appel, M.J. (author), de Heer, C. (author), TNO Industrie en Techniek TNO Kwaliteit van Leven (author)
In this study, the within-animal variation in routinely studied continuous toxicological parameters was estimated from temporal fluctuations in individual healthy nonexposed animals. Assuming that these fluctuations are nonadverse, this within-animal variation may be indicative of the minimal magnitude of the critical effect size (CES). The CES...
article 2006
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Vuyk, J. (author), van den Bos, J. (author), Terhell, K. (author), de Bos, R. (author), Vletter, A. (author), Valk, P. (author), van Beuzekom, M. (author), van Kleef, J. (author), Dahan, A. (author), TNO Technische Menskunde (author)
Acute mountain sickness is thought to be triggered by cerebral hypoxemia and be prevented by acetazolamide (Actz). The effect of Actz on cerebral oxygenation at altitude remains unknown. In 16 members of the 2005 Dutch Cho Oyu (8201 m, Tibet) expedition, the influence of Actz and exercise (750 mg PO daily) on heart rate, peripheral and regional...
article 2006
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van Doorn, M.B.A. (author), Espirito Santo, S.M. (author), Meijer, P. (author), Kamerling, I.M. (author), Schoemaker, R.C. (author), Dirsch, V. (author), Vollmar, A. (author), Haffner, T. (author), Gebhardt, R. (author), Cohen, A.F. (author), Princen, H.M. (author), Burggraaf, J. (author), TNO Kwaliteit van Leven (author)
Background: Epidemiologic studies suggest that garlic may have beneficial effects on risk factors associated with cardiovascular disease (CVD). However, these findings are not unambiguously supported by randomized placebo-controlled clinical trials. Objective: We sought to investigate the effects of a chemically well-characterized garlic...
article 2006
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Rad, M. (author), Kluft, C. (author), Ménard, J. (author), Burggraaf, J. (author), de Kam, M.L. (author), Meijer, P. (author), Sivin, I. (author), Sitruk-Ware, R.L. (author), TNO Kwaliteit van Leven (author)
Objective: This study aimed to compare the effects on hemostasis variables of a contraceptive vaginal ring with those of an oral contraceptive. Study design: Twenty-three and 22 healthy premenopausal women were randomized to the contraceptive vaginal ring (150 μg Nestorone and 15 μg ethinyl estradiol) or Stediril 30 during 3 cycles. Analysis of...
article 2006
Searched for: subject:"Analysis%5C+of%5C+variance"
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