Aportaciones de Faustino Arévalo a la teoría de los himnos cristianos

El presente artículo consiste en una exposición de las cuestiones más significativas de la teoría del jesuita español Faustino Arévalo sobre la composición y corrección de himnos cristianos. De estos principios teóricos da cuenta nuestro humanista en uno de los capítulos de la Hymnodia Hispanica. Tras analizarlos someramente, tratamos de extraer lo novedoso de sus aportaciones y el modo en que lleva a cabo en la práctica su teoría.The present article consists of an exposition of the most significant questions of the spanish jesuit Faustino Arévalo's theory about the composition and correction of Christian hymns. These principles are explained by our humanist in one of the chapters of his Hymnodia Hispanica. After analysing the principles briefly, we try to take out the novelty of his contributions and the way of achieving his theory in practice

Sobre el texto del "Lysis" de Decembrio. Revisión y nuevas propuestas

In this paper we analyze the text of the Latin translation by Pier Candido Decembrio of Plato’s Lysis, taking into account the only two existing editions, the editio princeps of Gallego Moya (2001), and the edition of Martinelli Tempesta (2009), as well as the remarks found in a new article by Martinelli Tempesta (2010). A new reading of the manuscripts that transmit the Latin translation and of the manuscript that provides the Greek text used by Decembrio leads the author to provide corrections and new readings to the text of both of the editions.En este trabajo se analiza el texto de la traducción latina del Lysis de Platón llevada a cabo por Pier Candido Decembrio, teniendo en cuenta las dos únicas ediciones existentes, la editio princeps de Gallego Moya de 2001 y la de Martinelli Tempesta de 2009, así como las observaciones de este autor en un artículo de 2010. Una nueva lectura de los manuscritos que transmiten la traducción latina, así como del manuscrito que contiene el texto griego utilizado por Decembrio, lleva a la autora a ofrecer correcciones y nuevas propuestas al texto latino de las ediciones

El mito de Escila en Ovidio (Met. VIII 1-151.)

Se analiZa en este trabajo el mito de Escila, hija de Niso, narrado por Ovidio en Metamorfosis VIII 1-151, y se muestra cómo la naturaleza de la historia condiciona la estructura de un relato de escaso tono estrictamente épico, que consiste, salvo algunas breves intervenciones del narrador, casi exclusivamente en «monólogos y discursos» de la protagonista, de tono elegíaco y casi dramático, en los que el poeta hace alarde de sus infinitos recursos literarios

Environmental change rate and dispersion pattern modulate the dynamics of evolutionary rescue of the cyanobacterium Microcystis aeruginosa

The rate of biodiversity loss is so high that some scientists affirm that we are being witnesses of the sixth mass extinction. In this situation, it is necessary to ask the following question: can the organisms be able to resist the environmental changes that are taking place? Recent studies have shown the possibility of a population recovering from a stress situation through evolutionary rescue (ER) events. These events depend on the size of the population, its previous history and the rate of the environmental change. The aim of this work is to add more knowledge about the ER dynamics creating stress situations with selective agents (sulphur and salinity) and using the toxic cyanobacterium Microcystis aeruginosa as a model organism. The experiments are based on exposing populations to severe stress and analyze the effect of previous dispersal events and deterioration rates on the occurrence of ER events among populations. The model consists in three different rates of environmental change (constant, slow and fast; under salinity stress we only used the first two treatments) and three dispersal models (isolated, local or global). In total, 324 and 720 populations were exposed to stressful conditions caused by sulphur and salinity, respectively. The results showed that the dispersal modes and the environmental deterioration rates modulated the occurrence of ER events. It has been observed that dispersal favours ER events for both selective agents. Regarding the rate of environmental change, we observed an increase of ER events under constant changes in the populations exposed to sulphur stress. However, ER events were higher when there was previous deterioration (i.e., slow environmental change rate) under saline stress. As a conclusion, ER events in M. aeruginosa depend on selective agent, being the probability higher for salinity than for sulphur. Thus, it could be hypothesized that general conclusions in ER studies must take into account the selective agent.This work has been financially supported by the projects CGL2014- 53682-P (Ministerio de Economía y Competitividad) and CGL2017-87314-P (Ministerio de Economía, Industria y Competitividad), and the Universidad de Málaga, Campus de Excelencia Internacional Andalucía Tech

Primer registro de anisakis sp. (nematoda, anisakidae) l3 en la cavidad corporal deatlantoraja platana (chondrichthyes, rajidae)

En la presente nota se registra por primera vez el tercer estadio larval de Anisakis sp. infectando a Atlantoraja platana (Günther, 1880). Los hospederos fueron obtenidos en desembarques pesqueros de plantas de procesado de los puertos de San Antonio Oeste (40° 44' S 64° 57' O) y San Antonio Este (40° 49' S 64° 57' O), Provincia de Río Negro, Argentina. Las larvas fueron colectadas en la cavidad visceral de los peces, cerca del órgano epigonal, un tejido linfomieloide estrechamente asociado a las gónadas y exclusivo de los peces cartilaginosos. Hay evidencias documentadas que las altas concentraciones de urea en tejidos y fluídos corporales tornan inhabitable el medioambiente celómico para ser colonizado por helmintos. Los resultados expuestos en este trabajo constituyen el primer reporte de L de Anisakis sp. en la cavidad corporal 3 de un elasmobranquio, en particular A. platana, y demuestran la capacidad de este anisákido para sobrevivir en la masa visceral de estos hospederos.This communication is the first record of the presence of a third stage larva of Anisakis sp. infecting Atlantoraja platana. The hosts were collected from fishery landings at processing plants of San Antonio Oeste (40° 44' S 64° 57' O) and San Antonio Este ports (40° 49' S 64° 57' O), Rio Negro province, Argentina. They were found in the visceral cavity near the epigonal organ, a lymphomyeloid tissue closely associated with gonads and only in cartilaginous fish. The high concentrations of urea in the body fluid and tissues of elasmobranch hosts made an inhospitable environment to the colonization of helminthes. The results produced by this work constitute the first report of L of Anisakis sp. in the body cavity of an elasmobranch, in particular 3 A. platana, and show the capability of this anisakid to survive in the visceral mass of these hosts.Fil: Moya, Ana Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Ciencias Biológicas y Biomédicas del Sur. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Instituto de Ciencias Biológicas y Biomédicas del Sur; ArgentinaFil: Galíndez, Elena Juana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Ciencias Biológicas y Biomédicas del Sur. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Instituto de Ciencias Biológicas y Biomédicas del Sur; ArgentinaFil: Di Giacomo, Edgardo Ernesto. Universidad Nacional del Comahue; ArgentinaFil: Tanzola, Rubén Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Ciencias Biológicas y Biomédicas del Sur. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Instituto de Ciencias Biológicas y Biomédicas del Sur; Argentin

Characterization of the cyanobacterium Oscillatoria sp. isolated from extreme sulphureous water from Los Baños de la Hedionda (S Spain)

Los Baños de la Hedionda (Málaga, S Spain) is a natural sulphureous spa (150-200 µM sulphide). Although this high sulphide levels can affect the photosynthetic process, there are numerous photosynthetic microorganisms inhabiting the spa. Among them, we isolated a strain of the cyanobacterium Oscillatoria sp., a genus well known by its tolerance to sulphide. Objectives Firstly, to analyze the photosynthetic characteristics and growth rate of the isolated strain, as well as the effect of the presence of sulphide in both processes. Secondly, to determine the limit of genetic adaptation of this strain to sulphide. Methods The resistance of the isolated strain to sulphide was studied by analyzing the effect of increasing sulphide levels (up to 1600 µM) on photosynthetic performance and growth. The limit of genetic adaptation was explored using an evolutionary experimental design named as ratchet protocol. This design allows discerning the maximum capacity of genetic adaptation of Oscillatoria sp. to the exposure of increasing doses of sulphide Conclusions The strain showed maximum growth rates at 200 µM sulphide although reduced rates can be found up to 800 µM sulphide. A significant increase in resistance was achieved in all derived populations during the ratchet experiment (surviving at sulphide concentrations higher than 2 mM). Moreover, they showed different evolutionary potential to adapt to sulphide, depending on historical contingency.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.Spanish Ministry of Science and Innovation through CGL2014-53682-P project. Predoctoral State Grant from Scientific and Technical Research and Innovation Plan, Spanish Ministry of Economy, Industry and Competitiveness I+D+i ECC/1402/2013, 201

Disentangling mechanisms involved in the adaptation of the cyanobacterium Microcystis aeruginosa to the extreme sulphureous water from Los Baños de la Hedionda (S Spain)

Backgrounds Los Baños de la Hedionda (Málaga, S Spain) is a natural sulphureous spa where sulphide can reach a concentration of 150-200 µM. Although this ion has biocide properties, including inhibition of the photosynthetic process, a rich flora can be found in this extreme environment. Objectives To study the adaptation mechanisms allowing resistance of photosynthetic microorganisms to these sulphureous waters Methods For this purpose, a modified Luria–Delbrück fluctuation analysis was carried out. The adaptation to La Hedionda waters of three different strains of the cyanobacterium Microcystis aeruginosa (Kützing) Kützing (isolated from a non-sulphureous freshwater reservoir) was analyzed in order to find out if it was achieved by a physiological adaptation process (acclimation) or by the selection of rare spontaneous mutations (genetic adaptation). Conclusions Several resistant strains were obtained after 6 weeks of cultivation with La Hedionda waters. The fluctuation analysis showed that genetic adaptation was the phenomenon that allowed resistant M. aeruginosa cells from the three strains to survive, with similar mutation rates in the order of magnitude of 1 mutant resistant cell per 106-107 cell division-1. It could be hypothesized that this cyanobacterium could adapt to sulphureous environment by the selection of favoured mutants.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.Spanish Ministry of Science and Innovation through CGL2014-53682-P project. Predoctoral State Grant from Scientific and Technical Research and Innovation Plan, Spanish Ministry of Economy, Industry and Competitiveness I+D+i ECC/1402/2013, 201

Synthesis, characterization and study of biocompatibility of polyacrylonitrile membranes functionalized with high concentrations of graphene in cell cultures

Grado en Ingeniería Químic

Clima social familiar y resiliencia en estudiantes de 3°, 4° Y 5° año de secundaria de la Asociación Educativa Adventista Peruana del Norte, 2017

El propósito del presente estudio tuvo el objetivo de determinar la relación que existe entre clima social familiar y la resiliencia, en los estudiantes de tercero, cuarto y quinto año del nivel secundario de la Asociación Educativa Adventista Peruana del Norte. El estudio realizado fue de corte transversal y alcance descriptivo, correlacional. La población fue conformada por 394 estudiantes de 13 a 19 años. Los instrumentos utilizados fueron la Escala de Clima Social Familiar FES de Moos y la Escala de Resiliencia (ER) de Wagnild y Young. Los resultados obtenidos demuestran que existe relación entre el clima social familiar y la resiliencia (rs =.175, p <.05). Asimismo, las dimensiones de clima social familiar: “relaciones interpersonales” (rs =.123, p <.05) presenta una relación significativa y “desarrollo personal” demuestra relación altamente significativa con “resiliencia” (rs =.211, p <.01). Sin embrago, la dimensión “Estabilidad” no presenta correlación con la resiliencia. Se concluye que las familias capaces de proporcionar un adecuado clima social familiar para los miembros de su sistema, permiten el desarrollo de adecuados niveles de resiliencia.TesisLIMAEscuela de Posgrado Unidad de Ciencias Humanas y EducaciónInvestigación sobre factores psicológicos en el entorno educativ