Estresores de aculturación de los inmigrantes hispanos en Estados Unidos de América. Revisión sistemática exploratoria / Stressors during the process of culture adaptation of hispanic migrants in the United States of America: An exploratory systematic review / Estressores de aculturação de imigrantes hispânicos nos Estados Unidos da América. Revisão sistemática exploratoria

RESUMEN Introducción: Los inmigrantes hispanos que se desplazan hacia Estados Unidos experimentan una transición migratoria altamente estresante, padeciendo alteraciones en la salud que continúan después de su llegada, lo que puede dificultar su adaptación a la nueva cultura. Identificar los factores más estresantes en el inmigrante hispano en su proceso de aculturación es primordial para el diseño de intervenciones puntuales y oportunas, donde el personal de enfermería es un elemento central para ello. Objetivo: Identificar los estresores de aculturación que presentan los inmigrantes hispanos en Estados Unidos. Desarrollo: Mediante un análisis numérico de los datos cuantitativos y el análisis temático de los hallazgos cualitativos, sugerido por metodología para revisiones sistemáticas exploratorias, se identificaron estresores personales, del entorno, sociales y globales, que enfrentan los inmigrantes hispanos. De igual manera, se describen las principales repercusiones a la salud tales como: angustia, ansiedad, depresión, ideación suicida, riesgo de consumo de alcohol, conductas sexuales de riesgo, entre otras, que se derivan de dicho proceso de transición. Conclusiones: Los encuentros más comunes entre el profesional de enfermería se dan durante momentos de transición de las personas, por ello es importante resaltar que la transición cultural de los inmigrantes hispanos es acompañada de estresores que afectan directamente su salud. El presente estudio muestra y clasifica los estresores más comunes, evidencia la necesidad de la creación de estrategias encaminadas a la adaptación social del inmigrante hispano y el involucramiento de la enfermería tanto en el diseño como liderazgo de estas.

ABSTRACT Introduction: Hispanic migrants who settle in the United States experience a highly stressful transition period, which not only has an impact on their process of adaptation to the new culture but also on their health. Therefore, identifying stressing factors which influence the hispanic migrants during their process of culture adaptation is a key goal in the design and implementation of timely interventions led by nursing professionals. Objective: To identify stressing factors which have an influence on the process of culture adaptation of hispanic migrants in the United States. Development: Based on the numeric analysis of quantitative data, and the thematic analysis of the qualitative data which was informed by an exploratory systematic review methodology, personal, social, global stressors were identified influencing hispanic migrants in the United States. Among the identified health issues were: anguish, anxiety, depresion, suicide thoughts, alcohol consumption, and risky sexual behaviors. Conclusions: The present study showed some important stressors influencing the hispanic migrants in the United States in their process of culture adaptation. These factors can be considered by the nursing professionals who are addressing the process of social adaptation of these populations.

RESUMO Introdução: Os imigrantes hispânicos que se mudam para os Estados Unidos passam por uma transição migratória altamente estressante, sofrendo alterações de saúde que continuam após sua chegada, o que pode dificultar sua adaptação à nova cultura. Identificar os fatores mais estressantes para os imigrantes hispânicos em seu processo de aculturação é essencial para a concepção de intervenções oportunas, nas quais o pessoal de enfermagem é um elemento central para isso. Objetivo: Identificar os estressores de aculturação entre os imigrantes hispânicos nos Estados Unidos. Desenvolvimento: Através de uma análise numérica dos dados quantitativos e análise temática dos resultados qualitativos, sugeridos pela metodologia de revisões sistemáticas exploratórias, foram identificados os estresses pessoais, ambientais, sociais e globais enfrentados pelos imigrantes hispânicos. Da mesma forma, são descritas as principais repercussões na saúde, tais como: angústia, ansiedade, depressão, ideação suicida, risco de consumo de álcool, comportamentos sexuais de risco, entre outros, que são derivados deste processo de transição Conclusões: Os encontros mais comuns entre os profissionais de enfermagem ocorrem durante os momentos de transição das pessoas, portanto é importante salientar que a transição cultural dos imigrantes hispânicos é acompanhada por fatores de estresse que afetam diretamente sua saúde. Este estudo mostra e classifica os fatores de estresse mais comuns, demonstra a necessidade da criação de estratégias voltadas para a adaptação social do imigrante hispânico e o envolvimento da enfermagem tanto no desenho quanto na liderança dessas estratégias.

Spiroplasma infection in Drosophila melanogaster: what is the advantage of killing males?

Male-killing bacteria are maternally inherited agents that cause death of sons of infected females. Their transmission rate is commonly high but imperfect and also sensitive to different environmental factors. Therefore, the proportion of infected females should be reduced in each generation. In order to explain male-killers spread and persistence in host population, a mechanism resulting in the relative increase of infected females must outweigh the losses caused by the imperfect transmission. The resource release hypothesis states that the males' death results in increased resources available to sibling females which would otherwise be used by their male siblings. Infected females are then expected: to be larger than uninfected females in natural populations; or to have higher viability; or to have shorter development times; or any combination of these outcomes. Here, we tested the resource release hypothesis by measuring body size of infected and uninfected wild-caught Drosophila melanogaster females and carried out other fitness related measures in the laboratory. Wild-caught infected females produced more daughters than uninfected females in their first days in the laboratory. However, although no significant difference in viability was found in a controlled experiment with infected and uninfected flies from a standard laboratory strain, there was a decrease in development time probably mediated by reduced competition. Fitness effects conditioned by the host genetic background are pointed out as a possible explanation for this difference between wild and laboratory flies. Our findings are discussed in the context of the resource advantage hypothesis.

Incomplete transposition of the common femoral artery and vein.

Anatomical variations of the great saphenous vein, femoral artery and femoral vein at the inguinal level are rare. Modifications in the anatomical relationships among theses vessel can cause technical difficulties. There are two reports in the literature of the complete transposition of the femoral artery and vein. Both patients had large varicose veins only in the limb that presented the variation, which suggested an extrinsic compression. In the present paper, we report a case study of a patient with an incomplete transposition of the femoral artery and vein. Specifically, the common femoral vein and the saphenofemoral junction were completely overlapped by the common femoral artery. Although this anatomical variation did not present any clinical signs, it required a more complex surgical procedure.