Search results for "Migration"
showing 10 items of 1709 documents
La movilidad geográfica de búlgaros y rumanos durante la Gran Recesión en España
2021
El objetivo de este artículo es analizar las pautas de movilidad de los inmigrantes procedentes de Bulgaria y Rumania durante la grave crisis económico-laboral que afecta a España. La información utilizada procede de entrevistas en profundidad a migrantes búlgaros y rumanos, que se completa con datos del Instituto Nacional de Estadística y del Ministerio de Empleo y Seguridad Social. Los resultados muestran el fuerte incremento de la movilidad interprovincial de trabajadores, sobre todo en los primeros años y con un destacado protagonismo de los varones, y el progresivo aumento de la migración internacional, que adopta diversas formas: retorno, migración circular entre el lugar de origen y …
Mobilités étudiantes et territoires universitaires : vers une uniformisation des pratiques ?
2005
Since French Society enters the so-called "Economy of knowledge", migrations of young people, especially these concerning students, are of most interest. Despite the fact that it could help to understand University as a system and ways regions can evolve, the study of students' migrations was not yet done. A set of results highlights first the main role of French capital region. It also shows main changes in migrations of students following vocational training in University. At least, it reveals that architectures of students' migrations look like these of migrations of the whole French population.
Navettes domicile-travail : naissance et développement d’un objet statistique structurant
2017
International audience; Ce travail s’applique à retracer l’histoire des "navettes" ou "migrations alternantes" en tant qu’objet statistique. Nous partons du constat que l’objet navette, depuis sa naissance dans les années 1930, a pris une importance grandissante dans les études de géographie urbaine et de mobilité quotidienne. Alors que cet objet a très peu évolué dans son mode de production, son domaine de validité s’est considérablement étendu. Sur la base de ce constat, nous cherchons à comprendre les raisons de la montée en importance de cet objet statistique et nous analysons les constructions empiriques et théoriques sur lesquelles s’appuie l’extension de son domaine de validité. Nous…
La migration comme renversement des rapports de pouvoir linguistiques. Pertes et profits d'ingénieurs aéronautiques en mobilité internationale
2023
The Role of the Church and Mosque in the Political Mobilization of Black African Immigrants in Finland at the Municipal Level
2015
Research has generally shown that the church and mosque play some role in immigrant political integration, especially mobilization. In Finland, this is not yet known as no research has yet examined it. This leaves a gap on whether the church and/or the mosque play such role. This paper seeks to fill this gap, using Black African immigrants as a case study through in-depth interviews. The focus is on political mobilization at the municipal level where many immigrants in Finland have full local suffrage. The study does not just examine the role of the church and mosque in mobilization in conventional politics (such as voting, party membership, campaigning), but also in the unconventional (suc…
1,2,4-Oxadiazole Topsentin Analogs with Antiproliferative Activity against Pancreatic Cancer Cells, Targeting GSK3β Kinase.
2021
A new series of topsentin analogs, in which the central imidazole ring of the natural lead was replaced by a 1,2,4- oxadiazole moiety, was efficiently synthesized. All derivatives were pre-screened for antiproliferative activity against the National Cancer Institute (NCI-60) cell lines panel. The five most potent compounds were further investigated in various pancreatic ductal adenocarcinoma (PDAC) cell lines, including SUIT-2, Capan-1, and Panc-1 cells, eliciting EC50 values in the micromolar and sub-micromolar range, associated with significant reduction of cell migration. These remarkable results might be explained by the effects of these new topsentin analogues on epithelial-to-mesenchy…
Moroccans and Ecuadorians in the Mediterranean litoral intensive agriculture
2002
Desde el final de los años 1990 hay cambios importantes en el panorama migratorio español. Entre éstos cabe destacar la llegada de nuevos colectivos y la generalización del fenómeno en regiones y en sectores económicos que hasta el momento no conocían la mano de obra extranjera. Entre los nuevos grupos sobresalen los ecuatorianos que ya son el segundo colectivo de extranjeros en España y que en ciertas zonas entran en competencia con los marroquíes. Esta situación se aprecia especialmente bien en las comarcas agrarias del litoral mediterráneo. Since the end of the 1990s, there have been significant changes in the Spanish migration scene. Among them it is important to highlight the arrival o…
ITINERARIOS INSTITUCIONALIZADOS: RESPONSABILIDADES Y DINÁMICAS DE EXCLUSIÓN EN LA PROTECCIÓN DE LOS MENORES MIGRANTES NO ACOMPAÑADOS EN GALICIA
2013
This paper aims at revealing the partial results of the research I have been conducting since 2010 with the community of unaccompanied children and youngsters hosted by the protection system of the Autonomous Community of Galicia (Spain). The research focuses on a case study, including adolescents from a specific territory of Morocco, the province of Beni Mellal, one of the most relevant out-bound migration regions into Spain and Italy. The study points out some gaps in the implementation of the rights of the child that blocks the access to protection, conditioning his/her vital trajectory and social integration after youngster's departure from the hosting institution.
Differential Greek and northern African migrations to Sicily are supported by genetic evidence from the Y chromosome
2009
The presence or absence of genetic heterogeneity in Sicily has long been debated. Through the analysis of the variation of Y-chromosome lineages, using the combination of haplogroups and short tandem repeats from several areas of Sicily, we show that traces of genetic flows occurred in the island, due to ancient Greek colonization and to northern African contributions, are still visible on the basis of the distribution of some lineages. The genetic contribution of Greek chromosomes to the Sicilian gene pool is estimated to be about 37% whereas the contribution of North African populations is estimated to be around 6%. In particular, the presence of a modal haplotype coming from the southern…
2014
Oligodendrocytes are the myelinating glial cells of the central nervous system. In the course of brain development, oligodendrocyte precursor cells migrate, scan the environment and differentiate into mature oligodendrocytes with multiple cellular processes which recognize and ensheath neuronal axons. During differentiation, oligodendrocytes undergo dramatic morphological changes requiring cytoskeletal rearrangements which need to be tightly regulated. The non-receptor tyrosine kinase Fyn plays a central role in oligodendrocyte differentiation and myelination. In order to improve our understanding of the role of oligodendroglial Fyn kinase, we have identified Fyn targets in these cells. Pur…