Search results for "Emigration and immigration"

Génesis y resolución de conflictos relacionados con la instalación de mezquitas y oratorios: el caso del oratorio de Singuerlín (Santa Coloma de Gram…

2017

Durante los últimos años, se han sucedido, en diferentes territorios del Estado español, los conflictos relacionados con la instalación de mezquitas y oratorios destinados a la práctica del culto musulmán. Este artículo analiza uno de los conflictos más intensos, el desatado en 2004 ante el intento de apertura del oratorio del barrio de Singuerlín en Santa Coloma de Gramenet. Se estudia su raíz, su evolución y el papel que jugó la mediación intercultural en su gestión. A partir de las entrevistas en profundidad efectuadas con los actores implicados, varios años después, se analizan los elementos estructurales del conflicto y se plantea una reflexión acerca de la forma en la que se ha ido co…

Disturbance-induced emigration: an overlooked mechanism that reduces metapopulation extinction risk.

2021

Emigration propensity (i.e., the tendency to leave undisturbed patches) is a key life-history trait of organisms in metapopulations with local extinctions and colonizations. Metapopulation models of dispersal evolution typically assume that patch disturbance kills all individuals within the patch, thus causing local extinction. However, individuals may instead be able to leave a patch when it is disturbed, either by fleeing before being killed or simply because the disturbance destroys the patch without causing mortality. This scenario may pertain to a wide range of organisms from horizontally transmitted symbionts, to aquatic insects inhabiting temporary ponds, to vertebrates living in fra…

Circumventing deadlock through venue-shopping: Why there is more than just talk in US immigration politics in times of economic crisis

2016

This article addresses the question of how the financial and economic crisis that hit the US in the late 2000s impacted immigration policies. We find that the crisis has not significantly changed dynamics. Instead, it has highlighted and aggravated persisting trends. Drawing on Kingdon’s multiple streams model and combining it with the notion of two-level games, we find that while the policy stream and the problem stream would call for both restrictive and liberalising changes, the political stream impedes change: The fact that Congress has been divided for a long time over Comprehensive Immigration Reform (CIR) impedes any restrictive or liberalising changes. With problems resulting from c…

Absence of the lactase-persistence-associated allele in early Neolithic Europeans.

2007

Lactase persistence (LP), the dominant Mendelian trait conferring the ability to digest the milk sugar lactose in adults, has risen to high frequency in central and northern Europeans in the last 20,000 years. This trait is likely to have conferred a selective advantage in individuals who consume appreciable amounts of unfermented milk. Some have argued for the “culture-historical hypothesis,” whereby LP alleles were rare until the advent of dairying early in the Neolithic but then rose rapidly in frequency under natural selection. Others favor the “reverse cause hypothesis,” whereby dairying was adopted in populations with preadaptive high LP allele frequencies. Analysis based on the cons…

Identifying Genetic Traces of Historical Expansions: Phoenician Footprints in the Mediterranean

2008

10 páginas, 1 figura, 4 páginas.-- et al.

Antibodies anti HTLV-I/II in Sicilian residents, in drug addicts, and in African immigrants

1995

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…

Condiciones de trabajo y salud en inmigrantes (Proyecto ITSAL): entrevistas a informantes clave

2009

Objetivo: Caracterizar colectivos de inmigrantes trabajadores en España y conocer sus condiciones de salud laboral mediante informantes clave. Método: Estudio cualitativo exploratorio-descriptivo con entrevistas en profundidad realizado en 2006. Se identificaron organizaciones, asociaciones y colectivos relacionados con la población inmigrante en Alicante, Barcelona, Huelva, Madrid y Valencia, y se seleccionaron los más accesibles y representativos. Se entrevistó a 43 informantes clave procedentes de 34 asociaciones u organismos. Se realizó un análisis narrativo del contenido. Resultados: Se señalan dificultades para el reconocimiento de los daños a la salud derivados del trabajo por las si…

Analysis of Spanish policies for the integration of immigrant schoolchildren

2016

The Organic Law on the Improvement of the National Education Quality (Ley Organica de Reforma de la Calidad Educativa) readdressed one of the most significant educational issues: educational policies related to immigrant students. Therefore, this is an appropriate moment to evaluate these types of policies in three singular Spanish regions: Madrid, Catalonia and Andalusia. This article presents an analysis of the measures taken in three Spanish regions: Madrid, Catalonia and Andalusia in response to students’ reception, acceptance and enrolment of immigrant students. A qualitative methodology based on the comparative method is used. Diverse similarities, but also specific characteristics an…

Associations among immigrants at the crossroads.Transnational action and co-option risks

2016

Resumen En este artículo tratamos de contribuir al debate en torno al papel de las asociaciones de inmigrantes en las sociedades de origen y destino, así como puente entre las mismas. El creciente número y potencial de las asociaciones ha puesto de relieve su contribución al desarrollo y a la dinamización de las sociedades civiles de uno y otro lado. Sin embargo, este proceso no está exento de limitaciones y dinámicas que pueden entrar en contradicción con el papel fundacional de las mismas asociaciones. La interacción con las instituciones de los países de origen de origen y destino, y el acceso a programas y fondos públicos estatales, habría generado un escenario en el que las asociacione…