Results 271 to 280 of about 160,178 (309)
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Controlling immigration? How regulations affect migration flows
European Journal of Political Research, 2018AbstractThe aim of this article is to investigate whether or not and how immigration policies affect immigration flows. Such policy impacts have hardly been investigated so far as the necessary data is lacking. For the first time, two new datasets are combined to systematically measure immigration policies and bilateral migration flows for 33 ...
Helbling, Marc, Leblang, David
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Editorial introduction: European migration: flows, structures and regulation
International Journal of Population Geography, 2002AbstractIt is now widely accepted, and commented on, that both within Europe and beyond, not only are millions on the move, but there have been fundamental changes in the very nature of migration and mobility. The large‐scale uprooting of people leading to forced migration, the rapid increase of legal and illegal migration of skilled and unskilled ...
Lazaridis, G, Williams, AM
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Flow-Induced Migration of Osteoclasts and Regulations of Calcium Signaling Pathways
Cellular and Molecular Bioengineering, 2014Osteoclasts are large multinucleate cells originating from the fusion of monocytes that are differentiated from hematopoietic stem cells. Although activated osteoclasts preferentially move to the area of microcrack by chemotaxis, whether such mechanical cues as fluid shear stress (FSS) regulate the migration of osteoclasts remains unknown.
Chenglin Liu +3 more
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Biochemical and Biophysical Research Communications, 2010
The cytoskeleton plays a central role for the integration of biochemical and biomechanical signals across the cell required for complex cellular functions. Recent studies indicate that the intermediate filament vimentin is necessary for endothelial cell morphogenesis e.g. in the context of leukocyte transmigration.
LUND N. +5 more
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The cytoskeleton plays a central role for the integration of biochemical and biomechanical signals across the cell required for complex cellular functions. Recent studies indicate that the intermediate filament vimentin is necessary for endothelial cell morphogenesis e.g. in the context of leukocyte transmigration.
LUND N. +5 more
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Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020
Abstract We report that the surface roughness of solid particles plays a crucial role in determining their migration and distribution within flowing polymer blends as well as their regulation ability toward the blend morphology. During slow shearing, smooth particles exhibit remarkable accumulation at the droplet/matrix interface while the rough ones
Siying Xiang +6 more
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Abstract We report that the surface roughness of solid particles plays a crucial role in determining their migration and distribution within flowing polymer blends as well as their regulation ability toward the blend morphology. During slow shearing, smooth particles exhibit remarkable accumulation at the droplet/matrix interface while the rough ones
Siying Xiang +6 more
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Trophoblast migration under flow is regulated by endothelial cells.
Biology of reproduction, 2005During pregnancy, trophoblasts enter the uterine vasculature and are found in spiral arteries far upstream of uterine capillaries. It is unknown whether trophoblasts reach the spiral arteries by migration within blood vessels against blood flow or by intravasation directly into spiral arteries after interstitial migration. We have developed an in vitro
Arlen, Soghomonians +3 more
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River Research and Applications, 2008
AbstractPost‐spawning migrations of sea trout (Salmo truttaL.) in two northern Swedish river systems, Vindelälven and Piteälven, were studied. Telemetry was used to evaluate spawning locations, post‐spawning mortality, overwintering survival/habitat selection/location, partitioned natural mortality from dam passage mortality and overall survival from ...
Oestergren, J., Rivinoja, P.
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AbstractPost‐spawning migrations of sea trout (Salmo truttaL.) in two northern Swedish river systems, Vindelälven and Piteälven, were studied. Telemetry was used to evaluate spawning locations, post‐spawning mortality, overwintering survival/habitat selection/location, partitioned natural mortality from dam passage mortality and overall survival from ...
Oestergren, J., Rivinoja, P.
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SSRN Electronic Journal, 2006
In recent years, there has been a lack of empirical work devoted to the explanation of migration patterns into the European Union with the exception of country specific studies. At the same time, migration theories have undergone a considerable renewal, which has led to the development of new variables for explaining migration decisions. Three of them
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In recent years, there has been a lack of empirical work devoted to the explanation of migration patterns into the European Union with the exception of country specific studies. At the same time, migration theories have undergone a considerable renewal, which has led to the development of new variables for explaining migration decisions. Three of them
openaire +1 more source
Lobbying in the Legislative Process, 2023
The article deals with the problem associated with the development of bilateral relations between countries on the issues of ensuring the rights of labor migrants, analyzes the possibilities of mutual assimilation of labor law norms of the Russian Federation and the UAE in the context of increased migration flows. This topic is relevant in the light of
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The article deals with the problem associated with the development of bilateral relations between countries on the issues of ensuring the rights of labor migrants, analyzes the possibilities of mutual assimilation of labor law norms of the Russian Federation and the UAE in the context of increased migration flows. This topic is relevant in the light of
openaire +1 more source
North American Journal of Fisheries Management, 2012
Abstract Since the early 1980s, a water temperature management program has been in existence on the Nechako River system in central British Columbia, Canada. The program releases water based on anticipated meteorological conditions in an attempt to prevent temperature from exceeding a specified threshold of 20°C downstream during a ...
J. S. Macdonald +2 more
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Abstract Since the early 1980s, a water temperature management program has been in existence on the Nechako River system in central British Columbia, Canada. The program releases water based on anticipated meteorological conditions in an attempt to prevent temperature from exceeding a specified threshold of 20°C downstream during a ...
J. S. Macdonald +2 more
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