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Banta, H.D. (author), Nederlands Instituut voor Praeventieve Gezondheidszorg TNO (author)Assessing the value of health care interventions is more and more a concern of governments, clinicians, health insurance companies, policy makers, and the general public. One dimension of the outcomes of such interventions that has received relatively little attention until recently is quality of life. However, during the last decade, measuring...article 1993
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Lotens, W.A. (author)A simple analytical model has been developed to simulate the cooling of the hands due to touching various types of cold material. The model consisted of a slab of tissue, covered on both sides with skin. The only active mechanism was the skin blood flow. The blood flow was controlled by body core temperature, mean skin temperature, and local...article 1992
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van de Water, H.P.A. (author), Bijleveld, C.C.J.H. (author), Nederlands Instituut voor Praeventieve Gezondheidszorg TNO (author)Eind 1990 verschenen in dit tijdschrift twee artikelen over het aantal met HIV geïnfecteerden in Nederland. Hieruit bleek dat het aantal HIV-seropositieven lager lag dan eerder werd aangenomen, maar dat desondanks een stijgend aantal AIDS-patiënten verwacht mocht worden. In uitkomsten liepen de twee onderzoeken niet ver uiteen. Jager et al....article 1992
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Verkerk, P.H. (author), Buitendijk, S.E. (author), Nederlands Instituut voor Praeventieve Gezondheidszorg TNO (author)It is generally believed that non-differential misclassification will lead to a bias toward the null-value. However, using one graphical and one numerical example, we show that in situations where underestimation more than overestimation is the problem, non-differential misclassification may lead to a bias away from the null-value for...article 1992
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- Verloove-VanHorick, S.P. (author), Brand, R. (author), TNO Preventie en Gezondheid (author) article 1992
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Centraal Instituut voor Voedingsonderzoek TNO (author), van Poppel, G. (author), Kok, F.J. (author), Hermus, R.J.J. (author)beta-carotene has been hypothesised to reduce lung cancer risk. We studied the effect of 14 weeks of beta-carotene supplementation (20 mg d-1) on the frequency of micronuclei in sputum in 114 heavy smokers in a double-blind trial. Micronuclei reflect DNA damage in exfoliated cells and may thus provide a marker early-stage carcinogenesis. Pre...article 1992
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Jongen, M.J.M. (author), Engel, R. (author), Leenheers, L.H. (author), Medisch Biologisch Laboratorium TNO (author)As part of a survey of occupational exposure to pesticides in greenhouses for growing ornamentals, analytical methods were developed and validated for the measurement of exposure of workers to the pesticide abamectin. Abamectin consists of a mixture of avermectin-B1a and avermectin-B1b, which are members of a class of fermentation products of...article 1991
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Lupker, H.A. (author)This paper presents a general methodology for calculating the critical velocity of a train part striking the head of a LPG rail tank car. The energy dissipation during the collision is mainly due to collapse of the underframe, plastic deformation of the tank head and friction. The collapse behaviour of a two and four axle underframe is studied...article 1990
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Centraal Instituut voor Voedingsonderzoek TNO (author), Devos, M. (author), Patte, F. (author), Rouault, J. (author), Laffort, P. (author), van Gemert, L.J. (author)This book provides an inventory of weighted and averaged human olfactory thresholds for over 500 chemicals. The standardized thresholds are based on the relevant literature of which a list is included, as well as an explanation of the mathematical methods used by the authors.book 1990
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Gaubius instituut TNO (author), Princen, H.M.G. (author), Meijer, P. (author), Kuipers, F. (author)Chemicals/CAS: Bile Acids and Salts; Solutionsarticle 1990
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Gizdulich, P. (author), Wesseling, K.H. (author), TNO Biomedical Instrumentation (author)Pressure-volume (p-V) relationships of a segment of the forearm circulation have been measured in nine male healthy subjects. Forearm volume was measured using electrical impedance plethysmography, arterial transmural pressure by subtracting mean arterial pressure measured contralaterally in a finger from the pressure in a cuff placed over the...article 1988
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van Dijk, H.A.L. (author), Kratz, P. (author), Technisch Physische Dienst TNO - TH (author)Eén van de aktiviteiten van de Technisch Physische Dienst (TPD) van TNO op het gebied van onderzoek naar de thermische benutting van zonne-energie betreft het beproeven van uiteenlopende soorten van voorzieningen voor de tijdelijke opslag van de ingevangen zonnewarmte. In de loop der jaren groeide de behoefte om de opgedane ervaringen op dit...article 1987
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- van der Greef, J. (author), Centraal Instituut voor Voedingsonderzoek TNO (author) article 1986
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Instituut CIVO-Toxicologie en voeding TNO (author), Kroes, R. (author), Beems, R.B. (author), Bosland, M.C. (author), Bunnik, G.S.J. (author), Sinkeldam, E.J. (author)Dietary factors are now considered to be among the most important environmental risk determinations for cancer. In addition to epidemiological studies, experimental animal studies are an important tool to investigate dietary modulation in carcinogenesis. Results of recent experimental studies on the effect of some nutrients indicate that vitamin...conference paper 1986
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Zijl, W. (author), Dienst Grondwaterverkenning TNO (author)Since the primary transport mechanism of pollutants and heat in a subsurface flow system is advection, accurate determination of the velocity of the carrier fluid percolating through the porous medium is extremely important. Computer‐based groundwater motion simulators conventionally use pressure as the primary variable, and after the pressure...article 1984
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Nederlands Instituut voor Praeventieve Gezondheidszorg TNO (author), Schroots, J.J.F. (author)Na een korte uiteenzetting van, bestaande opvattingen over bet begrip eenzaambeid, wordt bet door Weiss gemaakte onderscbeid geintroduceerd tussen eenzaamheid als gevolg van emotionele isolatie en eenzaamheid als gevolg van sociale isolatie. Dit onderscbeid wordt vervolgens teruggevoerd tot respektievelijk Bowlby's hechtings- en verliestheorie...article 1984
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Magchielse, T. (author), Hooisma, J. (author), Muijser, H. (author), Medisch Biologisch Laboratorium TNO (author)The measurement of passive electrical membrane properties in cultured muscle cells is complicated by the fact that the electrotonic length in these cells often exceeds their actual length, leading to serious deviations from the simple infinite cable behaviour. By using very short current pulses for these measurements and integrating the...article 1981
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Radiobiologisch Instituut TNO (author), Reinhold, H.S. (author), van de Berg-Blok, A. (author)Chemicals/CAS: Oxygen, 7782-44-7article 1980
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- Radiobiologisch Instituut TNO (author), Mulder, J.H. (author) article 1980
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Olsman, W.J. (author), van Leeuwen, C.M. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)An improved procedure for the determination of protein-bound nitrite (PBN) in meat products, based on Mirna's method, is described. The results obtained with this modification are significantly higher, and have a lower variation coefficient, than those provided by the old procedure. This is demonstrated by comparison of the analytical results....article 1977