Migraciones por amor : diversidad y complejidad de las migraciones de mujeres

El artículo analiza un tipo de migración, que hemos denominado por amor, que aparece de manera emergente a partir de la década de los años 90 en el marco de la irrupción del nuevo orden mundial caracterizado por el creciente protagonismo de las TIC. La exploración de los proyectos migratorios de las mujeres que han migrado por amor, nos sitúa ante la complejidad y la diversidad de las situaciones migratorias, puesto que plantean abiertamente la existencia de motivaciones para migrar que trascienden el modelo que atribuye a las migraciones una causalidad económica. El amor, la formación de una familia en destino o la emancipación son, entre otros, algunos de los motivos aducidos por las mujeres cuando explican su migración. El trabajo de campo, consistente en la realización de más de 70 entrevistas en profundidad a parejas mixtas formadas por hombres españoles y mujeres eslavas o latinoamericanas, nos ha mostrado que los proyectos migratorios de las mujeres migrantes por amor reflejan algunas singularidades que son exploradas en el artículo. El carácter individualizado de la migración; la baja intensidad de las relaciones transnacionales que mantienen las mujeres migrantes; la ausencia de un proyecto de retorno; y un proceso de incorporación a la sociedad de llegada que, a pesar de ser más cómodo, puede acabar consolidando una situación de dependencia de las mujeres respecto a sus parejas.This paper focuses on a specific kind of migration we call migration for love, which arose in the 1990s as a result of the emergence of the new world order characterized by the increasing role of ICTs. Exploring the migration projects of women who have migrated out of love reveals the complexity and diversity of migratory situations given that it uncovers the existence of motivations for migration that go beyond the model of economic causality attributed to migration. Love, the desire to raise a family on arrival, and emancipation are among the reasons given by women when explaining their decision to migrate. The field work, which mainly comprised more than 70 interviews of couples in a mixed marriage of Spanish men to Slavic or Latin American women has shown that the migration projects of women who migrate for love exhibit particular features which are explored in the article. The individualized nature of migration, the low intensity of transnational relations maintained by the migrant women, the absence of a project to return, and the process of integration of these women into the host society, in spite of being more convenient, lead them to eventually consolidate a situation of dependency on their partners

A first principles study of thiol-capped Au nanoparticles: Structural, electronic, and magnetic properties as a function of thiol coverage

We have studied the stability of thiolated Au38 nanoparticles (NPs) via density functional theory based calculations varying the coverage from 0 up to 32 molecules. Three different initial core arrangements were considered for the cluster, spherical, tubular, and bi-icosahedral, while thiol groups were attached to the cluster via the sulfur atom either as single molecules or forming more complex staple motifs. After molecular dynamics runs several metastable configurations are found at each coverage thus allowing to analyze the properties of the NPs in the form of ensemble averages. In particular, we address the structural and electronic properties as a function of the number of thiols. The study emphasizes the strong influence of the core structure on the stability of the NPs, and its interplay with the thiol coverage and adsorption geometries. The magnetic properties of the NPs have also been explored via spin-polarized calculations including spin-orbit coupling. No evidence for the existence of a robust intrinsic ferromagnetism is found in any of the structures. © 2013 AIP Publishing LLC.This research was supported by the Spanish Ministry of Innovation and Science under Project No. MAT2010-18432.Peer Reviewe

Migrations for love : diversity and complexity in women’s migrations

El artículo analiza un tipo de migración, que hemos denominado por amor, que aparece de manera emergente a partir de la década de los años 90 en el marco de la irrupción del nuevo orden mundial caracterizado por el creciente protagonismo de las TIC. La exploración de los proyectos migratorios de las mujeres que han migrado por amor, nos sitúa ante la complejidad y la diversidad de las situaciones migratorias, puesto que plantean abiertamente la existencia de motivaciones para migrar que trascienden el modelo que atribuye a las migraciones una causalidad económica. El amor, la formación de una familia en destino o la emancipación son, entre otros, algunos de los motivos aducidos por las mujeres cuando explican su migración. El trabajo de campo, consistente en la realización de más de 70 entrevistas en profundidad a parejas mixtas formadas por hombres españoles y mujeres eslavas o latinoamericanas, nos ha mostrado que los proyectos migratorios de las mujeres migrantes por amor reflejan algunas singularidades que son exploradas en el artículo. El carácter individualizado de la migración; la baja intensidad de las relaciones transnacionales que mantienen las mujeres migrantes; la ausencia de un proyecto de retorno; y un proceso de incorporación a la sociedad de llegada que, a pesar de ser más cómodo, puede acabar consolidando una situación de dependencia de las mujeres respecto a sus parejas.This paper focuses on a specific kind of migration we call migration for love, which arose in the 1990s as a result of the emergence of the new world order characterized by the increasing role of ICTs. Exploring the migration projects of women who have migrated out of love reveals the complexity and diversity of migratory situations given that it uncovers the existence of motivations for migration that go beyond the model of economic causality attributed to migration. Love, the desire to raise a family on arrival, and emancipation are among the reasons given by women when explaining their decision to migrate. The field work, which mainly comprised more than 70 interviews of couples in a mixed marriage of Spanish men to Slavic or Latin American women has shown that the migration projects of women who migrate for love exhibit particular features which are explored in the article. The individualized nature of migration, the low intensity of transnational relations maintained by the migrant women, the absence of a project to return, and the process of integration of these women into the host society, in spite of being more convenient, lead them to eventually consolidate a situation of dependency on their partners

Motor self-efficacy, physical education and physical activity in Brazilian and Spanish adolescents

La investigación estudia las relaciones entre la frecuencia de actividad física, la percepción de auto-eficacia motriz, y la satisfacción con la clase y con el profesorado de Educación Física, en dos culturas: Brasil y España. Se aplicaron cuatro escalas a 2.017 adolescentes españoles y 1.119 brasileños (edad 14.22±1.73). Los resultados muestran: baja frecuencia de actividad física; y relaciones significativas entre las variables estudiadas (p<0.01). La auto-eficacia motriz es el factor con mayor poder explicativo de la frecuencia de actividad física (R²=0.223 para Brasil y R²=0.226 para España). Los profesores de EF podrían mejorar la percepción de auto-eficacia aplicando adecuado feedback.The research studies the relationship among frequency of physical activity, perceived motor self-efficacy and satisfaction with PE lessons and teachers in two cultures: Brazil and Spain. Four scales were applied to 2,017 Spanish and 1,119 Brazilian adolescents (age 14.22±1.73). Results show low frequency of physical activity and significant relationships among the studied variables (p<0.01). Motor self-efficacy is the factor with the highest explanatory power of frequent physical activity (R²=0.223 for Brazil and R²=0.226 for Spain). PE teachers could raise perceived self-efficacy if they applied a suitable approach.Este artículo es producto (parcial) de dos proyectos de investigación, financiados por el Banco Santander Central Hispano (4ª convocatoria de Proyectos de Investigación UAM-BSCH para la cooperación con América Latina); y por el Ministerio de Educación, Política Social y Deporte (Programa Nacional de I+D+i; código SEJ2007-67267/ed

Selective Oxidation of Glycerol via Acceptorless Dehydrogenation Driven by Ir(I)-NHC Catalysts

After pandemic, healthcare workers experienced a series of emotional and psychological disturbances that could impact their mental well-being. In this study, the feasibility of morphological characteristics of photoplethysmographic (PPG) waveform to quantify stress and depression level posed by COVID-19 in first-line healthcare workers is explored. Results show that higher stress and depression level are moderately correlated with large systolic amplitude and parameters that might indicate early wave reflection. These results suggest that an arterial stiffness, quantified with PPG morphological characteristics, could provide valuable information in assessing mental healt

Non-viral Gene Delivery Methods for Bone and Joints.

Viral carrier transport efficiency of gene delivery is high, depending on the type of vector. However, viral delivery poses significant safety concerns such as inefficient/unpredictable reprogramming outcomes, genomic integration, as well as unwarranted immune responses and toxicity. Thus, non-viral gene delivery methods are more feasible for translation as these allow safer delivery of genes and can modulate gene expression transiently both in vivo, ex vivo, and in vitro. Based on current studies, the efficiency of these technologies appears to be more limited, but they are appealing for clinical translation. This review presents a summary of recent advancements in orthopedics, where primarily bone and joints from the musculoskeletal apparatus were targeted. In connective tissues, which are known to have a poor healing capacity, and have a relatively low cell-density, i.e., articular cartilage, bone, and the intervertebral disk (IVD) several approaches have recently been undertaken. We provide a brief overview of the existing technologies, using nano-spheres/engineered vesicles, lipofection, and in vivo electroporation. Here, delivery for microRNA (miRNA), and silencing RNA (siRNA) and DNA plasmids will be discussed. Recent studies will be summarized that aimed to improve regeneration of these tissues, involving the delivery of bone morphogenic proteins (BMPs), such as BMP2 for improvement of bone healing. For articular cartilage/osteochondral junction, non-viral methods concentrate on targeted delivery to chondrocytes or MSCs for tissue engineering-based approaches. For the IVD, growth factors such as GDF5 or GDF6 or developmental transcription factors such as Brachyury or FOXF1 seem to be of high clinical interest. However, the most efficient method of gene transfer is still elusive, as several preclinical studies have reported many different non-viral methods and clinical translation of these techniques still needs to be validated. Here we discuss the non-viral methods applied for bone and joint and propose methods that can be promising in clinical use

Aplicativo Web Intranet para la gestión catastral con programación Libre

La present memòria descriu el projecte final: Aplicativo Web Intranet per a la gestió cadastral amb programació lliure, la finalitat d'aquest projecte és la creació d'un aplicativo web intranet per a la consulta de la geoinformación del sistema de Gestió Cadastral de l'Ajuntament de Cerdanyola del Vallès utilitzant programació lliure. Es va utilitzar MapServer menjo servidor de mapes i OpenLayers para la realització del VisorLa presente memoria describe el proyecto final: Aplicativo Web Intranet para la gestión catastral con programación libre, la finalidad de este proyecto es la creación de un aplicativo web intranet para la consulta de la geoinformación del sistema de Gestión Catastral del Ayuntamiento de Cerdanyola del Vallès utilizando programación libre. Se utilizó MapServer como servidor de mapas y OpenLayers para la realización del Visor

High prevalence of S. Stercoralis infection among patients with Chagas disease: A retrospective case-control study

Background: We evaluate the association between Trypanosoma cruzi infection and strongyloidiasis in a cohort of Latin American (LA) migrants screened for both infections in a non-endemic setting. Methodology: Case-control study including LA individuals who were systematically screened for T. cruzi infection and strongyloidiasis between January 2013 and April 2015. Individuals were included as cases if they had a positive serological result for Strongyloides stercoralis. Controls were randomly selected from the cohort of individuals screened for T. cruzi infection that tested negative for S. stercoralis serology. The association between T. cruzi infection and strongyloidiasis was evaluated by logistic regression models. Principal findings: During the study period, 361 individuals were screened for both infections. 52 (14.4%) individuals had a positive serological result for strongyloidiasis (cases) and 104 participants with negative results were randomly selected as controls. 76 (48.7%) indiviuals had a positive serological result for T. cruzi. Factors associated with a positive T. cruzi serology were Bolivian origin (94.7% vs 78.7%; p = 0.003), coming from a rural area (90.8% vs 68.7%; p = 0.001), having lived in an adobe house (88.2% vs 70%; p = 0.006) and a referred contact with triatomine bugs (86.7% vs 63.3%; p = 0.001). There were more patients with a positive S. stercoralis serology among those who were infected with T. cruzi (42.1% vs 25%; p = 0.023). Epidemiological variables were not associated with a positive strongyloidiasis serology. T. cruzi infection was more frequent among those with strongyloidiasis (61.5% vs 42.3%; p = 0.023). In multivariate analysis, T. cruzi infection was associated with a two-fold increase in the odds of strongyloidiasis (OR 2.23; 95% CI 1.07-4.64; p = 0.030). Conclusions: T. cruzi infection was associated with strongyloidiasis in LA migrants attending a tropical diseases unit even after adjusting for epidemiological variables. These findings should encourage physicians in non-endemic settings to implement a systematic screening for both infections in LA individuals

Severe infantile-onset cardiomyopathy associated with a homozygous deletion in desmin

Desminopathy is a genetically heterogeneous disorder with autosomal dominant pattern of inheritance in most affected families; the age of disease onset is on average 30 years. We studied a patient with a history of recurrent episodes of syncope from infancy who later developed second-degree AV block and restrictive cardiomyopathy; she subsequently suffered several episodes of ventricular tachyarrhythmia requiring implantation of bicameral defibrillator. Neurological examination revealed rapidly progressive bilateral facial weakness, winging of the scapulae, symmetric weakness and atrophy of the trunk muscles, shoulder girdle and distal muscles of both upper and lower extremities. Muscle biopsy demonstrated signs of myofibrillar myopathy with prominent subsarcolemmal desmin-reactive aggregates. Molecular analysis identified a homozygous deletion in DES resulting in a predicted in-frame obliteration of seven amino acids (p.R173_E179del) in the 1B domain of desmin. We describe the youngest known desminopathy patient with severe cardiomyopathy and aggressive course leading to the devastation of cardiac, skeletal and smooth musculature at an early age