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Kooi, F.L. (author), TNO Technische Menskunde (author)
When regions containing a counterphasing sine-wave grating are presented side by side and in spatial and temporal quadrature phase, a transparent perception of motion results. This occurs even though none of the stimulus parts is moving. The two percepts of motion in these displays are in opposite directions, one analogous to brightness contrast...
article 1995
document
Kaptein, A. (author), Roodenburg, L. (author), Princen, H.M.G. (author), Gaubius Institute TNO Instituut voor verouderings- en vaatziekten onderzoek TNO (author)
Addition of sodium butyrate to the culture medium of the human hepatoma cell line Hep G2 resulted in a time- and dose-dependent increase in the secretion of apolipoprotein A-I (apo A-I) and apolipoprotein B100 (apo B100). After a 24 h preincubation period, a 2.4- and 2.2-fold increase in the secretion of apo A-I and apo B100 respectively was...
article 1991
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Liebrechts-Akkerman, G. (author), Lao, O. (author), Liu, F. (author), van Sleuwen, B.E. (author), Engelberts, A.C. (author), L'Hoir, M.P. (author), Tiemeier, H.W. (author), Kayser, M. (author)
Background: Sudden infant death syndrome (SIDS) is the unexpected death of an infant that remains unexplained after a thorough investigation of the circumstances, family history, paediatric investigation and complete autopsy. In Western society, it is the leading cause of post-neonatal death below 1 year of age. In the Netherlands, the SIDS...
article 2011
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Kerstholt, J.H. (author), Passenier, P.O. (author)
Automation has changed the role of human operators from direct manual control to supervision. Their main task is to monitor whether system performance remains within pre-specified ranges and intervention is only required in unusual situations. One of the consequences is a loss of situation awareness, which significantly affects performance in...
article 2000
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Hueber-Becker, F. (author), Nohynek, G.J. (author), Meuling, W.J.A. (author), Benech-Kieffer, F. (author), Toutain, H. (author), TNO Voeding (author)
We investigated the absorption of a commercial [14C]-PPD- containing oxidative dark-shade hair dye in human volunteers as well as in vitro using human or pig ear skin. The hair of eight male volunteers was cut to a standard length, dyed, washed, dried, clipped and collected. Hair, washing water, materials used in the study and a 24-h scalp wash...
article 2004
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Lammers, J.H.C.M. (author), Meuling, W.J.A. (author), Muijser, H. (author), Freidig, A.P. (author), Bessems, J.G.M. (author), TNO Kwaliteit van Leven (author)
The health risks of inhalation exposure to volatile organic solvents may not only depend on the total external dose, but also on the pattern of exposure. It has been suggested that exposure to regularly occurring peak concentrations may have a stronger impact on the brain than constant exposure at the same average level. Recent animal...
article 2005
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Albers, R. (author), van der Wielen, R.P.J. (author), Brink, E.J. (author), Hendriks, H.F.J. (author), Dorovska-Taran, V.N. (author), Mohede, I.C.M. (author), TNO Voeding (author)
Objectives: To study the effects of two different mixtures of the main conjugated linoleic acid (CLA) isomers cis-9, trans-11 CLA and trans-10, cis-12 CLA on human immune function. Design: Double-blind, randomized, parallel, reference-controlled intervention study. Subjects and intervention: Seventy-one healthy males aged 31-69y received one of...
article 2003
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van Vliet, A.K. (author), van Thiel, G.C.F. (author), Huisman, R.H. (author), Moshage, H. (author), Yap, S.H. (author), Cohen, L.H. (author), TNO Preventie en Gezondheid (author)
The three vastatins examined, lovastatin, simvastatin and pravastatin, are equally strong inhibitors of the sterol synthesis in human hepatocytes in culture with IC50-values of 4.1, 8.0 and 2.0 nM, respectively. However, in the human extrahepatic cells: umbilical vascular endothelial cells, retinal pigment epithelial cells, cornea fibroblasts...
article 1995
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Janssen, W.H. (author), Tenkink, E. (author), Instituut voor Zintuigfysiologie TNO (author)
Risk-taking behavior by drivers is put within the context of a general model of utility maximization by speed choice. It is shown that so-called "risk homeostasis" is possible only under very restrictive conditions. Under more general conditions, risk compensation can occur; that is, the safety effects expected from engineering measures will be...
article 1988
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Qvigstad, E. (author), Verloove-Vanhorick, S.P. (author), Ens-Dokkum, M.H. (author), Schreuder, A.M. (author), Veen, S. (author), Brand, R. (author), Oostdijk, W. (author), Ruys, J.H. (author), Nederlands Instituut voor Praeventieve Gezondheidszorg TNO (author)
To predict height at five years in a cohort of 565 very preterm and/or very low-birth-weight children, hypothesized growth determinants were subjected to discriminant analysis. Many neonatal parameters were not significantly associated with short stature at five years of age. A correct classification of stature (smaller/larger than the 10th...
article 1993
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de Maat, M.P.M. (author), de Knijff, P. (author), Green, F.R. (author), Thomas, A.E. (author), Jespersen, J. (author), Kluft, C. (author), TNO Preventie en Gezondheid (author)
Elevated plasma fibrinogen levels represent an increased risk for cardiovascular diseased, but the mechanism explaining this association is still not clear. Genetic differences may play a role, because it has been shown that individuals who carry the rare alleles of polymorphisms in the genes for the Bβ-chain (Bcl I and G/A 455) and the Aα-chain...
article 1995
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Nieuwenhuizen, W. (author), Voskuilen, M. (author), Hermans, J. (author), Gaubius instituut TNO (author)
The present study was undertaken as a step to delineate further the localization of the calcium-binding sites in fibrinogen and to assess the anticlotting properties of fibrinogen degradation products. To this purpose, fragments Y were prepared by plasmin digestion of human fibrinogen in the presence of added Ca2+, and purified. We found that,...
article 1982
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Hopman-Rock, M. (author), Odding, E. (author), Hofman, A. (author), Kraaimaat, F.W. (author), Bijlsma, J.W.J. (author), TNO Preventie en Gezondheid (author)
Objective. To determine physical and psychosocial disability in subjects aged 55 to 74 years living in the community, in relation to pain in the hip and/or knee, and to explore the relationships between pain, physical and psychosocial disability, and selected background variables. Methods. A subsample from a community based study on pain,...
article 1996
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Hermens, A.F. (author), Bentvelzen, P.A.J. (author), Instituut voor Toegepaste Radiobiologie en Immunologie TNO (author)
Rat R2k rhabdomyosarcoma cells were transfected with the human H-ras oncogene, which resulted in increased resistance to cell kill in vitro by a single dose of 137Cs γ-rays. A subline carrying one oncogene showed an increase in the quasi-threshold dose (D(q)) from 0.88 to 1.48 Gy. Another subline containing six oncogenes not only had an...
article 1992
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van 't Veer, P. (author), Dekker, J.M. (author), Lamers, J.W.J. (author), Kok, F.J. (author), Schouten, E.G. (author), Brants, H.A.M. (author), Sturmans, F. (author), Hermus, R.J.J. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
In a case-control study in The Netherlands, we observed a significantly lower consumption of fermented milk products (predominantly yogurt and buttermilk) among 133 incident breast cancer cases as compared to 289 population controls (mean ± SD among users only, 116 ± 100 versus 157 ± 144 g/day; P<0.01). The age-adjusted odds ratio of daily...
article 1989
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de Winkel, K.N. (author), Clément, G. (author), Groen, E.L. (author), Werkhoven, P.J. (author)
Although the mechanisms of neural adaptation to weightlessness and re-adaptation to Earth-gravity have received a lot of attention since the first human space flight, there is as yet little knowledge about how spatial orientation is affected by partial gravity, such as lunar gravity of 0.16. g or Martian gravity of 0.38. g. Up to now twelve...
article 2012
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Havenith, G. (author), van de Linde, E.J.G. (author), Heus, R. (author)
Hand cooling and resulting comfort and pain were studied in 12 subjects, while touching six different materials (polyurethane foam, wood, nylon, rustproof steel, aluminium, and temperature-controlled metal) which were initially at ambient temperature. This was done for three ambient temperatures (-10°, 0° and 10°C), after pre-exposure exercise...
article 1992
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van Dommelen, P. (author), Schönbeck, Y. (author), van Buuren, S. (author)
article 2012
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Nijhoff, W.A. (author), Mulder, T.P.J. (author), Verhagen, H. (author), van Poppel, G. (author), Peters, W.H.M. (author)
The effects of consumption of glucosinolate-containing Brussels sprouts on plasma and urinary glutathione S-transferase (GST) class-α and -π were investigated. Five male and five female non-smoking volunteers were randomly assigned to two groups in a crossover design. Five persons started on a glucosinolate-free diet (control period), while the...
article 1995
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Theeuwes, J. (author), TNO Technische Menskunde (author)
The present studies investigated whether an isoluminant color change pops out, indicating that it can be detected preattentively in parallel. The results of Experi-ment 1 show that an abrupt color change presented on an equiluminant back-ground does not pop out. However, when the color change is accompanied by a small luminance change, it does...
article 1995
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