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- Hollander, C.F. (author), Instituut voor experimentele gerontologie TNO (author) article 1981
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Jonge, G.D. (author), Dienske, H. (author), Luxemburg, E.A.V. (author), Ribbens, L. (author), Primatencentrum TNO (author)Social play between two rhesus monkey (Macaca mulatta) infants takes place mainly when they are both not in body contact with their mothers. This suggests that social play and mother-infant body contact are potential competitors in the infants' time budgets. We investigated whether the presence of a playmate changed the duration of mother-infant...article 1981
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Hooisma, J. (author), Dam, E.W. (author), Medisch Biologisch Laboratorium TNO (author)Chemicals/CAS: 2 hexanone, 591-78-6; acetonylacetone, 110-13-4; hexane, 110-54-3article 1981
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- Reinhold, H.S. (author), Radiobiologisch Instituut TNO (author) article 1981
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Appelman, L.M. (author), Hendriksen, C.F.M. (author), Feron, V.J. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)The subacute inhalation toxicity of ??-ethylacrolein was examined in rats by repeated exposure of 4 groups of 10 males and 10 females each to ??-ethylacrolein vapour at concentrations of 0, 2.0, 9.8 or 48.4 ppm, respectively, (6 h/day, 5 days/week) for a period of 13 weeks. The effects at 48.4 ppm were found to include growth retardation, focal...article 1981
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- Beumer, H. (author), Centraal Instituut voor Voedingsonderzoek TNO Instituut voor Graan Meel en Brood TNO (author) article 1981
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Elgersma, D.M. (author), Overeem, J.C. (author), Organisch Chemisch Instituut TNO (author)Een week na inoculatie van vatbare tomatenplanten met Verticillium albo-atrum werd uit het vaatweefsel een fytoalexine ge??soleerd, dat idententiek bleek te zijn aan het polyacetyleen cis-tetradeca-6-een-1,3-diyn-5,8-diol. ?? 1981 Koninklijke Nederlandse Planteziektenkundige Vereniging.article 1981
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Wolthuis, O.L. (author), Medisch Biologisch Laboratorium TNO (author)The effects of etiracetam, a structural analogue or piracetam, were investigated in rats on Y-maze discrimination acquisition, on open field behavior, on one-trial passive avoidance learning and on shuttlebox acquisition and extinction. The results indicate that this drug significantly enhances acquisition and may improve retention without...article 1981
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Boccard, R. (author), Buchter, L. (author), Casteels, E. (author), Cosentino, E. (author), Dransfield, E. (author), Hood, D.E. (author), Joseph, R.L. (author), MacDougall, D.B. (author), Rhodes, D.N. (author), Sch??n, I. (author), Tinbergen, B.J. (author), Touraille, C. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)A Working Group on Meat Quality in the CEC Beef Production Research Programme has recommended reference methods for the assessment of meat characteristics to be used at the end of beef production experiments. The proposed procedures include sampling, sample preparation and suitable methods for the determination of meat colour and meat tenderness...article 1981
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van Pelt Verkuil, E. (author), Emeis, J.J. (author), Gaubius instituut TNO (author)Immunohistochemically, coagulation F-VIII-R:AG in vascular endothelial cells can be demonstrated with antihuman F-VIII-R:AG antisera after fixation with 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide, using both peroxidase and fluorescence techniques. The generally used aldehyde containing fixatives, result in a loss of immunoreactivity....article 1981
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- Lohman, P.H.M. (author), Medisch Biologisch Laboratorium TNO (author) article 1981
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- Schellekens, H. (author), Primatencentrum TNO (author) article 1981
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- Walraven, P.L. (author), Instituut voor Zintuigfysiologie TNO (author) article 1981
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Sonneveld, P. (author), van den Engh, G.J. (author), Radiobiologisch Instituut TNO (author)Flow cytometry was used to measure the uptake of adriamycin (AM) and daunomycin (DM) by various cell types of the haemopoietic organs and by acute myeloid leukemia (AML) cells. For this purpose, the spontaneous fluorescence of the drugs upon excitation with laser light at 488 nm was measured. The difference in the uptake of these two drugs...article 1981
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- van Dijk, H.A.L. (author), Technisch Physische Dienst TNO - TH (author) article 1981
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- Bouwcollege (author) report 1981
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Praaning-van Dalen, D.P. (author), Brouwer, A. (author), Knook, D.L. (author), Instituut voor experimentele gerontologie TNO (author)The clearance of five radioactively labeled test substances - polyvinylpyrrolidone, colloidal albumin, antimony sulfur colloid, endotoxin, and heparin - by the reticuloendothelial system was studied after i.v. injection of these substances into rats. The participation of parenchymal, Kupffer, and endothelial liver cells could be determined after...article 1981
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- van Lonkhuysen, H.J. (author), Autran, J.C. (author), Centraal Instituut voor Voedingsonderzoek TNO (author) article 1981
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- Pries, C. (author), Compaan, H. (author), Centraal Laboratorium TNO (author) article 1981
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Enger-Valk, B.E. (author), van Rotterdam, J. (author), Pouwels, P.H. (author), Medisch Biologisch Laboratorium TNO (author)Chemicals/CAS: DNA Restriction Enzymes, EC 3.1.21; DNA, Recombinant; Plasmids; Tryptophan, 73-22-3article 1981