Results 1 to 10 of about 1,750,312 (168)

Pubertal growth in height, sitting height and leg length in achondroplasia

open access: yesAnnals of Human Biology, 2021
Background: Children with achondroplasia (ACH) appear to lack a pubertal growth spurt in height. Aim To explore the growth spurt in height and its segments sitting height and leg length, in a large sample of ACH cases using growth curve modelling ...
T. J. Cole   +3 more
doaj   +1 more source

On population growth with catastrophes [PDF]

open access: yesStochastic Models, 2022
In this paper we study a particular class of Piecewise deterministic Markov processes (PDMP's) which are semi-stochastic catastrophe versions of deterministic population growth models. In between successive jumps the process follows a flow describing deterministic population growth. Moreover, at random jump times, governed by state-dependent rates, the
Goncalves, Branda   +2 more
openaire   +3 more sources

Small area variation in child undernutrition across 640 districts and 543 parliamentary constituencies in India

open access: yesScientific Reports, 2021
In India, districts serve as central policy unit for program development, administration and implementation. The one-size-fits-all approach based on average prevalence estimates at the district level fails to capture the substantial small area variation.
Sunil Rajpal   +4 more
doaj   +1 more source

Epidemiological Transition in Iran: The Rise and Fall of Epidemics in Iran After Islam to Before the Islamic Revolution [PDF]

open access: yesEpidemiology and Health System Journal, 2023
Background and aims: The lack of reliable data on mortality in Iran until the last few decades has caused the early stages of the epidemiological transition to remain unknown.
Mohammad Sasanipour   +1 more
doaj   +1 more source

Associations between elementary and middle school teachers’ physical activity promoting practices and teacher- and school-level factors

open access: yesInternational Journal of Behavioral Nutrition and Physical Activity, 2021
Background Few studies have evaluated teacher- and school-level characteristics associated with implementation of recommended physical activity (PA) promoting practices.
Ann Pulling Kuhn   +7 more
doaj   +1 more source

The inception of demographic theory in Serbia [PDF]

open access: yesStanovništvo, 2023
This text contains an account of the first work on theoretical demography in Serbia, which was written in 1862 by Kosta Cukić, a doctor of philosophy from Heidelberg and the first widely recognised Serbian economist.
Mijatović Boško
doaj   +1 more source

Laws of population growth [PDF]

open access: yesProceedings of the National Academy of Sciences, 2008
An important issue in the study of cities is defining a metropolitan area, because different definitions affect conclusions regarding the statistical distribution of urban activity. A commonly employed method of defining a metropolitan area is the Metropolitan Statistical Areas (MSAs), based on rules attempting to capture the notion of city as a ...
Rozenfeld, Hernan D.   +5 more
openaire   +3 more sources

Improving nutrition budgeting in health sector plans: Evidence from India's anaemia control strategy

open access: yesMaternal and Child Nutrition, 2022
In India, 15 nutrition interventions are delivered and financed through the National Health Mission (NHM). Programmatic know‐how, however, on tracking nutrition budgets in health sector plans is limited.
Avi Saini   +3 more
doaj   +1 more source

THE GROWTH OF POPULATIONS OF PROTOCELLS [PDF]

open access: yesProcesses of Emergence of Systems and Systemic Properties, 2008
the growth of protocells is discussed under different hypotheses (one or more replicators, linear and nonlinear kinetics) using a class of abstract models (Surface Reaction Models). A method to analyze the dynamics of successive protocell generations is presented, and it is applied to the problem of determining whether the duplication times of the ...
SERRA, Roberto   +3 more
openaire   +5 more sources

Malthusianism of the 21st century

open access: yesEnvironmental and Sustainability Indicators, 2020
This paper has arisen from a reflection of the current reality in terms of the postulations about what is known as the Malthusian economy. Since the Industrial Revolution to the present day, despite there having been a high increase in world population ...
Borja Montano, Marcos García-López
doaj   +1 more source

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