Results 271 to 280 of about 1,619,135 (319)

African hair growth parameters

British Journal of Dermatology, 2001
Hair growth parameters have been studied mostly in caucasian hair, whereas few data on African hair have been reported in the literature.To evaluate hair growth characteristics of African volunteers born in Africa.Thirty-eight young adults (19 women, 19 men, mean +/- SD age 27 +/- 10 years), native of central and western Africa, took part in the study.
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Genetic parameters of growth curve parameters in male and female chickens

British Poultry Science, 1999
1. Individual growth curves of 7143 chickens selected for the form of the growth curve were fitted using the Laird form of the Gompertz function, BW4=BW0xe(L/K)(1-e-Kt) where BWt is the body weight at age t, BW0 the estimated hatching weight, L the initial specific growth rate and K the maturation rate. 2. Line and sex effects were significant for each
Mignon-Grasteau, Sandrine, Beaumont, Catherine, Le Bihan-Duval, Elisabeth, Poivey, J.P., de Rochambeau, Hubert, Ricard, F.H.   +5 more
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Nonlongitudinal Estimation of Growth Curve Parameters: The Cohort Growth Model

Structural Equation Modeling: A Multidisciplinary Journal, 2018
The cohort growth model (CGM) is a method for estimating the parameters of a latent growth model (LGM) based on cross-sectional data.
Fischer, Kevin, Klein, Andreas, Reinecke, Jost   +2 more
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Effect of transport parameters on atherosclerotic lesion growth: A parameter sensitivity analysis

Computer Methods and Programs in Biomedicine, 2021
Atherosclerosis is a degenerative disease of the arterial wall. It results in the formation of progressively growing plaque lesions that can harden and narrow their host arteries. Current computational models of the inflammatory process that govern atherosclerosis growth are reliant on a number of parameters that can freely vary and whose precise ...
Ratchanon Piemjaiswang, Yan Ding, Yuqing Feng, Pornpote Piumsomboon, Benjapon Chalermsinsuwan   +4 more
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Parameter Estimates and Autonomous Growth

Journal of the American Statistical Association, 1959
Abstract The influence of certain specification errors on estimates of parameters in economic models is examined using Monte Carlo techniques. Autonomous growth is a secular change in the endogenous variables not explained by the exogenous variables and parameters of the structural equations.
W. A. Neiswangee, T. A. Yancey
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Optimal parameters for In vitro growth of parvoviruses

Comparative Immunology, Microbiology and Infectious Diseases, 1987
A procedure for optimal production or isolation of parvoviruses was found to be as follows: Indicator cells were infected in suspension using a cell concentration associated with full monolayer not before 3-4 days. The infected monolayer was passaged at similar cell concentrations, and the procedure repeated for up to 28 days culture of samples in this
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The Growth Parameters and the Genetics of Growth and Feeding

1982
Some time ago Brody (1945, Table 16.1) suggested that his growth parameters A, k, and t * are quantities geneticists could select on if they were seeking alterations of the growth curve of a breed of animal. He knew that factors such as nutrition, environment and management could affect these parameters, but under controlled conditions he thought there
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Growth Empirics without Parameters

The Economic Journal, 2011
Recent research on growth empirics has focused on resolving model and variable uncertainty. The conventional approach has been to assume a linear growth process and then to proceed with investigating the relevant variables that determine cross-country growth.
Daniel J. Henderson, Chris Papageorgiou, Christopher F. Parmeter   +2 more
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Investigating parameters of growth equations

Canadian Journal of Forest Research, 1996
Two differential forms of growth equations, called the power decline, or PD form, and the exponential decline, or ED form, generate classic growth equations (such as the logistic, Chapman–Richards, Korf) and many other integral forms. Having a full range of these integral solutions allows us to classify them, establish requirements to their parameters,
Vadim Shvets, Boris Zeide
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Measuring parameters of growth

1995
Abstract This chapter deals with the various parameters of growth and how they can be measured. A tissue can grow by: (i) increasing the number of cells; (ii) increasing the size of the cells; or (iii) increasing the amount of intercellular substance. Since the intercellular substance of a tissue is usually a secreted product of the cell,
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