Results 11 to 20 of about 1,818,831 (267)

On population growth with catastrophes [PDF]

Stochastic 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, Huillet, Thierry, Löcherbach, Eva   +2 more
openaire   +3 more sources

Laws of population growth [PDF]

Proceedings 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., Rybski, Diego, Andrade Jr., Jose S., Batty, Michael, Stanley, H. Eugene, Makse, Hernan A.   +5 more
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THE GROWTH OF POPULATIONS OF PROTOCELLS [PDF]

Processes 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, T. Carletti, I. Poli, FILISETTI, alessandro   +3 more
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Population, land, and growth [PDF]

Economic Modelling, 2013
Abstract This paper suggests a new explanation for changes in economic and population growth with a long run perspective, emphasizing the role of land in the development process. Starting from a pre-industrialization state called the “Malthusian regime”, land and labor are the main production factors. The size of population is limited by the quantity
Loupias, Claire, Wigniolle, Bertrand
openaire   +7 more sources

Understanding and measuring AIDS-related stigma in health care settings: A developing country perspective

SAHARA-J, 2007
AIDS-related stigma and discrimination remain pervasive problems in health care institutions worldwide. This paper reports on stigma-related baseline findings from a study in New Delhi, India to evaluate the impact of a stigma-reduction intervention in ...
Vaishali Sharma Mahendra, Laelia Gilborn, Shalini Bharat, Rupa Jakharia Mudoi, Indrani Gupta, Bitra George, Luke Samson, Celine Costello Daly, Julie Pulerwitz   +8 more
doaj   +1 more source

Association of vitamin D status and cardio-metabolic risk factors in children and adolescents: the CASPIAN-V study

BMC Nutrition, 2021
Background Metabolic syndrome (MetS) starts from early life and is one of the important underlying factors for non-communicable diseases (NCDs) in adulthood.
Mostafa Qorbani, Motahar Heidari-Beni, Hanieh-Sadat Ejtahed, Gita Shafiee, Farid Goodarzi, Seyed Saeed Tamehri Zadeh, Majid Khademian, Nami Mohammadian Khonsari, Mohammad Esmaeil Motlagh, Hamid Asayesh, Mohammad Jabbari, Ramin Heshmat, Mehdi Ebrahimi, Roya Kelishadi   +13 more
doaj   +1 more source

Analysis of Settlement Availability at Manyar Economic District Strategic Area of Gresik Regency

Jurnal Kawistara, 2021
Rapid development and increasing population density have created challenge for many regions to provide settlement spaces. The demand for settlement requires analysis that can forecast on the availability of space and the growth of settlement.
Anak Agung Sagung Alit Widyastuty, Annisa Budhiyani Tribhuwaneswari, Lutfi Zulkarnain   +2 more
doaj   +1 more source

Association between economic growth and early childhood undernutrition: evidence from 121 Demographic and Health Surveys from 36 low-income and middle-income countries

The Lancet Global Health, 2014
Background: Economic growth is widely regarded as a necessary, and often sufficient, condition for the improvement of population health. We aimed to assess whether macroeconomic growth was associated with reductions in early childhood undernutrition in ...
Prof. Sebastian Vollmer, PhD, Kenneth Harttgen, PhD, Malavika A Subramanyam, DSc, Jocelyn Finlay, PhD, Prof. Stephan Klasen, PhD, Prof. S V Subramanian, PhD   +5 more
doaj   +1 more source

NECESSITY DETERMINATION OF RELOCATING THE CAPITAL CITY WITH A DEFENSIVE PLANNING APPROACH [PDF]

Journal of Urban and Regional Analysis, 2022
This study evaluates the necessity of moving the capital city of Iran within a defensive planning approach and its impact on the national economic, social, and environmental aspects.
Nader Zali, Mir Najaf MOUSAVI, Hasan HEKMATNIA, Issa EBRAHIMZADEH, Ali BAGHERI KASHKOLI   +4 more
doaj   +1 more source

Income and Population Growth [PDF]

SSRN Electronic Journal, 2013
Do populations grow as countries become richer? In this study we estimate the effects on population growth of shocks to national income that are plausibly exogenous and unlikely to be driven by technological change. For a panel of over 139 countries spanning the period 1960–2007, we interact changes in international oil prices with countries’ average ...
Schwandt, Hannes, Brückner, Markus
openaire   +4 more sources