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American Journal of Epidemiology, 1981
Induction and latent periods are distinguishable concepts referring respectively to the period between causal action and disease initiation, and the period between disease initiation and detection. A disease cannot be characterized as having a long or short induction period, except in relation to a specific etiologic component.
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Induction and latent periods are distinguishable concepts referring respectively to the period between causal action and disease initiation, and the period between disease initiation and detection. A disease cannot be characterized as having a long or short induction period, except in relation to a specific etiologic component.
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Fluorescence studies of the photosynthetic induction period
Biochimica et Biophysica Acta (BBA) - Specialized Section on Biophysical Subjects, 1964Abstract The fluorescence intensity of green leaves at the beginning of an irradiation period is lower than at the subsequent steady state of illumination. This is interpreted in terms of the adsorption in the dark of plant metabolites at an active chlorophyll surface and of their photochemical reduction in the first few seconds of strong irradiation.
J L, ROSENBERG, T, BIGAT, S, DEJAEGERE
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Induction Periods in Reactions of N-Halogenimides
Nature, 1951N-HALOGENIMIDES have been extensively used in preparative organic chemistry during the past few years1. We have attempted to elucidate the mechanism of the reaction of N-chlorosuccinimide on toluene, in which the simplicity of the reagents and products appeared to be particularly suitable for such a study.
P, GOLDFINGER +2 more
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Latent period in the induction of reticuloendothelial blockade
American Journal of Physiology-Legacy Content, 1960Double intravenous injections of colloidal carbon in the mouse, with variation of the time between doses and with blood disappearance curves taken after the second dose, revealed a delay of over 3 hours in onset of reticuloendothelial blockade due to the first carbon dose.
H G, PARKER, C R, FINNEY
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Induction period in the aging of polypropylene
Journal of Applied Polymer Science, 1965AbstractThe ordinary methods for obtaining a rapid estimate of the useful life of a plastic, extrapolations from tests conducted at higher temperatures or at lower stabilizer concentrations than those of actual use, lead to serious errors in estimating the useful life of some stabilized polypropylene compositions.
J. W. Tamblyn, G. C. Newland
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Journal of Energy Chemistry, 2013 Effects of space velocity, reaction temperature and support acidity on product distribution and induction period in 1-butene isomerization and metathesis over Mo/mordenite-alumina were investigated.
Xiujie Li, Xiangxue Zhu, Shenglin Liu
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The Induction Period in Physical Development
The Journal of Photographic Science, 1976AbstractThe early stages of pure physical development were studied under conditions of constant pAg and in the presence of additives known to influence the "induction period” in chemical development. It appears that the rate of pure physical development is markedly dependent on the nucleus charge and on the charge on the developing agent, at least for ...
G.I.P. Levenson, P.J.P. Twist
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Journal of Thermal Analysis and Calorimetry, 2006
Methods for kinetic description of induction periods, based on the single-step kinetics approximation and various expressions of the temperature functions, are presented. The formulas for evaluation of both isothermal and non-isothermal lengths of induction periods are derived.
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Methods for kinetic description of induction periods, based on the single-step kinetics approximation and various expressions of the temperature functions, are presented. The formulas for evaluation of both isothermal and non-isothermal lengths of induction periods are derived.
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Interpretation of crystallization induction periods
Journal of Colloid and Interface Science, 1988The crystallization induction period tind, is interpreted as the sum of the time for critical nucleus formation, tn, and growth to detectable size, tg. Expressions describing the dependence of tind on supersaturation are derived for the cases tn ⪢ tg, tn ≈ tg, and tn ⪡ tg, taking into account different possible nucleation and growth mechanisms, and ...
Otakar Söhnel, John W Mullin
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The Induction Period in Development
The Journal of Photographic Science, 1975AbstractSince Ihe exposure-dependent induction periods controlling the developmenl of individual grains in an emulsion and induction periods derived from the overall kinetics of development depend upon different experimental faclors and arc not necessarily connected, they should be called different names.
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