نتایج جستجو برای: out migration

تعداد نتایج: 948144  

Alireza Biglari Ehsan Saburi Jalil Tavakolafshari Samad Nadri, Seyed Abbas Mirzaei, Yousef Mortazavi,

Objective(s): Extracellular matrix (ECM) is composed of many kinds of glycoproteins containing glycosaminoglycans (GAGs) moiety. The research was conducted based on the N-Acetylgalactosamine (GalNAc) degradation of ECM components by α-N-acetylgalactosaminidase (Nagalase) which facilitates migration and invasion of cancer cells. This study aims to investigate the effects of Naga-shRNA downregula...

2017
Xiaoou Ren David Levin Francis Lin

Microfluidic devices have been widely used for cell migration research over the last two decades, owing to their attractive features in cellular microenvironment control and quantitative single-cell migration analysis. However, the majority of the microfluidic cell migration studies have focused on single cell types and have configured microenvironments that are greatly simplified compared with...

2010
Charlotte L. Weller Timothy J. Williams Michael F. Gurish G. Jones Barrett J. Rollins John Westwick K. Frank Sarah J. Collington Jenny Hallgren James E. Pease Tatiana G. Jones K. Frank Austen

2004
Jean S. Marshall Dunia M. Jawdat Eric J. Albert Geoffrey Rowden Ian D. Haidl

2009
John Knodel Zachary Zimmer

Objectives: To examine the extent to which an association exists between health of older parents and return migration of children in rural Thailand. Methods: Data come from the 2006 Migration Impact Survey specifically designed to obtain information on the impact of migration on older adults in rural areas. Associations are examined from both the perspectives of parents (N=883) and migrating ch...

Journal: :space ontology international journal 0
hashem dadashpoor associate professor of urban and regional planning, faculty of art and architecture, tarbiat modares university, tehran, iran nasim ghasemi m.sc of regional planning, faculty of art and architecture, tarbiat modares university, tehran, iran

migration and quality of redistribution of population across country is one of the main factors that planners take into account to control population and guide its movements to economic poles. scientific recognition of migration phenomenon is important for managing and policy making in the country. these movements change migration pattern, in a way that along with increase in population and the...

2002
Mark C. Blades Egle Solito Costantino Pitzalis Mauro Perretti Francesca Ingegnoli Samantha K. Wheller

Extended abstract Introduction: Rural-urban migration is one of the common features of rural areas in developing countries including Iran. Metropolises as places of concentration of population, facilities, and services, have always been the main centers of absorbing rural-urban migrants. Migration is one of the main solutions of the poor and low-income rural households to increase income and a...

Journal: :Environment & planning A 2012
James Raymer Guy J Abel Andrei Rogers

Population projection models that introduce uncertainty are a growing subset of projection models in general. In this paper, we focus on the importance of decisions made with regard to the model specifications adopted. We compare the forecasts and prediction intervals associated with four simple regional population projection models: an overall growth rate model, a component model with net migr...

Journal: :Environmental research letters : ERL [Web site] 2012
David López-Carr

Migration necessarily precedes environmental change in the form of deforestation and soil degradation in tropical agricultural frontiers. But what environmental factors may contribute to these migration streams in the first place? Identifying environmental characteristics related to this process is crucial for understanding how environmental change and migration may form recurrent feedback loop...

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