Searched for: subject%3A%22Electronics%22
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document
Instituut voor Zintuigfysiologie TNO (author)
book 1981
document
Centraal Instituut voor Voedingsonderzoek TNO (author), Spit, B.J. (author), Wibowo, A.A.E. (author), Ferron, V.J. (author), Zielhuis, R.L. (author)
Electron microscopical studies were carried out on the kidneys of rabbits given s.c. injections of 0 (control), 0.25 or 0.50 mg lead acetate/kg b.w. 3 times a week during 14 weeks. At the end of the experimental period the animals had lead blood levels of 60, 500 and 600 ??g/1 whole blood respectively. Treatment-related renal changes were found...
article 1981
document
Meihuizen, S.P. (author), Blansjaar, N. (author), Instituut voor experimentele gerontologie TNO (author)
Hepatocyte morphology of the three zones of the liver lobule was evaluated by stereological analysis in 3-month-old and 35-month-old virgin female WAG/Rij rats. In the old rats, the volume of the nucleus and cytoplasm, and volume densities of smooth endoplasmic reticulum and lysosomes were increased in all areas of the liver lobule, while the...
article 1980
document
Coleman, C.I. (author), Delamere, W.A. (author), Dionne, N.J. (author), Kmminga, W. (author), Long, d. (author), Lowrance, J.L. (author), van Zuylen, P. (author), Technisch Physische Dienst TNO - TH (author)
bookPart 1979
document
van Bekkum, D.W. (author), van den Engh, G.J. (author), Wagemaker, G. (author), Radiobiologisch Instituut TNO (author)
A review is presented of the experiments that resulted in the identification of a specific morphologic entity representing the pluripotential hemopoietic stem cell (HSC) in mouse bone marrow. This entity was subsequently discovered in concentrated HSC preparations from bone marrow of rats, monkeys, and humans. In the mouse, a set of physical...
article 1979
document
van den Steen, L. (author), Medisch Biologisch Laboratorium TNO (author)
A practical method is described for instantaneous frequency measurement by computation of the reciprocal of the time interval between two events. Use is made of inexpensive integrated circuits.
article 1979
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Knook, D.L. (author), Instituut voor experimentele gerontologie TNO (author)
Ageing is associated with declines in the functional capacities of several organs. General causes for the decline can be divided into: 1. intrinsic cellular causes and 2. extracellular causes, e.g., changes in blood circulation and distribution. For the first group of causes, there is evidence for a decrease in the numbers of long-lived cells in...
article 1978
document
Mattern, I.E. (author), Medisch Biologisch Laboratorium RVO-TNO (author)
article 1976
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Molenaar, P.C. (author), Polak, R.L. (author), Nickolson, V.J. (author), Medisch Biologisch Laboratorium TNO (author)
Slices from rat brain cortex were incubated for either 5 or 60 min in a medium containing [3H]choline and 4.7 or 25 mM KCl. Bioassayable ACh and labelled ACh were determined in the incubation medium, in the total tissue homogenate and in subcellular fractions. Raising the KCl concentration from 4.7 to 25 mM stimulated the release and synthesis...
article 1973
document
Zeedijk, H.B. (author), Metaalinstituut TNO (author)
Asbestos bodies and asbestos fibers were found in the lungs of a mesothelioma patient and analysed by electron microscopy. The bodies were normal asbestos bodies with amphibole-asbestos fibers as kernels. The free asbestos fibers, present in the lungs, mainly were chrysotile-asbestos. © 1973 Springer-Verlag. Chemicals/CAS: asbestos, 1332-21-4;...
article 1973
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Instituut voor experimentele gerontologie TNO (author), Dicke, K.A. (author), van Noord, M.J. (author), Maat, B. (author)
The colony forming unit culture (CFU C) in the thin layer agar colony technique is considered to be representative for hemopoietic stem cells (HSC), according to studies in mouse and monkey bone marrow. Using this in vitro assay as a guide, stem cell concentrates were prepared from monkey and human bone marrow by repeated density gradient...
article 1973
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Offers, S. (author), Bentvelzen, P. (author), Radiobiologisch Instituut TNO (author)
article 1971
document
Leenhouts, A.J. (author)
Ofschoon het publiek gebruik van ruimtevaartuigen op zijn minst nog in het verre verschiet ligt is het wel interessant om zich eens af te vragen wat de kosten daarvan zouden zijn. Zonder enige pretentie van nauwkeurigheid mag het tarief voor het brengen van betalende lading in een baan om de aarde thans op ongeveer 150 gulden per gram gesteld...
conference paper 1968
Searched for: subject%3A%22Electronics%22
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