نتایج جستجو برای: age and growth

تعداد نتایج: 16979987  

2012
Jesús Crespo Cuaresma Wolfgang Lutz Warren Sanderson

The effect of changes in age structure on economic growth has been widely studied in the demography and population economics literature. The beneficial effect of changes in age structure after a decrease in fertility has become known as the demographic dividend. In this paper we first present the motivation for also explicitly addressing changes in education in addition to and age structure and...

This study explores the metaphoric comprehension of normal Persian-speaking children, as well as theories of cognitive development and cultural and social impacts. The researchers discuss the improvement of the understanding of ontological conceptual metaphors through age growth and cognitive development, and how it helps to expand children’s thoughts and knowledge of the world. In this study, ...

Journal: :iranian journal of applied animal science 2015
r. osei-amponsah b.b. kayang a. naazie i.m. barchia p.f. arthur

the logistic, gompertz, richards and asymmetric logistic growth curve models were fitted to body weight data of local ghanaian chickens and french sasso t44 chickens. all four growth models provided good fit for each sex by genotype growth data with r2 values ranging from 86.7% to 96.7%. the rate constant parameter, k, ranged between 0.137 and 0.271 and were significantly different from zero fo...

A. Savari , A. Taghavi Motlagh , Gh. Eskandari, P. Kochanian ,

  Estimates of age, growth parameters, length-weight relationship and length and age at first maturity of the otolithes ruber are required for fishery management. We used counting annuli on the section of sagittal otoliths to age O.ruber from the Northwest Persian Gulf in south of Iran. Estimated ages ranged from 0 to 6 years, and maximum frequency of fishes was observed in age-group 1. The val...

Journal: :Journal of the National Medical Association 2015
W M Cobb

Journal: :Archives of disease in childhood 1972
N Evans V P Robinson J Lister

Evans, N., Robinson, V. P., and Lister, J. (1972). Archives of Disease in Childhood, 47, 589. Growth and bone age of juvenile diabetics. The growth of a group of juvenile diabetics on restricted carbohydrate diets has been studied using standardized techniques. Most patients were distributed between the 10th and 90th centiles for height, weight, bone age, and subscapular skinfold thickness. The...

2003
RAFAEL GOMEZ Rafael Gomez

Un corpus de recherches empiriques effectuées dans différents pays a confirmé que l’inégalité des revenus est liée d’une manière négative à la croissance économique. Cet article fournit une voie à suivre pour expliquer ce rapport. La nouveauté de notre démarche réside dans l’utilisation de la démographie pour expliquer l’écart entre les pays en matière de croissance économique et répartition de...

A. Savari A. Taghavi Motlagh Gh. Eskandari, P. Kochanian

  Estimates of age, growth parameters, length-weight relationship and length and age at first maturity of the otolithes ruber are required for fishery management. We used counting annuli on the section of sagittal otoliths to age O.ruber from the Northwest Persian Gulf in south of Iran. Estimated ages ranged from 0 to 6 years, and maximum frequency of fishes was observed in age-group 1. The val...

Background: Evolutional failure can happen in various dimensions of infant’s growth consisting in word, act and behaviour and lead to appear difficults as delay in speaking, brain paralysis, mental lag etc. The purpose of this study is determination and identification of risk factors in infant’s growth parameters using quantile regression analysis. Methods: In this cross-sectional ...

Journal: :Journal of health economics 2009
Charles L Baum Christopher J Ruhm

We use panel data from the National Longitudinal Survey of Youth (NLSY) to examine how body weight changes with age for a cohort moving through early adulthood, to investigate how the age-obesity gradient differs with socioeconomic status (SES) and to study channels for these SES disparities. Our results show first that weight increases with age and is inversely related to SES during childhood....

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