Poemas de Calle Lomba : un poemario para inscribir la diferencia

El trabajo se ocupa de Poemas de calle Lomba, poemario en el que, de manera general, el poeta retoma los tópicos asociados a su identidad negra para insertarlos dentro de nuevos contextos locales y, al mismo tiempo, inscribirlos en problemáticas que se extienden más allá de estas fronteras regionales. Con un énfasis en los procesos socio-raciales los que rodean la creación de la obra estudiada, la investigación, por un lado, se acerca al lugar de enunciación del poeta cartagenero que, como veremos, pone de relieve las tensiones vinculadas a la discriminación racial y a la región del caribe como localidad periférica y, por otro lado, nos ayuda a interpretar e identificar las estrategias estéticas que inscriben la obra dentro de una poética de resistencia, legitimación y reivindicación de identidad negra y nación Caribe.The work deals Lomba street Poems, poems in which, generally, the poet takes the clichés associated with his black identity to insert into new local contexts and, at the same time, enroll them in issues that extend beyond of these regional boundaries. With an emphasis on socio-racial processes surrounding the creation of these works, research, on the one hand, approaches the poet's place of enunciation cartagenero that, as we shall see, highlights the tensions related to racial discrimination and Caribbean region as peripheral location and on the other hand, helps us interpret and identify the aesthetic strategies that register the work within a poetics of resistance, identity claim legitimacy and black Caribbean nation.Magíster en LiteraturaMaestrí

Development and recent activity of the San Andrés landslide on El Hierro, Canary Islands, Spain

Extremely voluminous landslides with a long run-out (also known as megalandslides) on oceanic volcanic islands are infrequent denudational processes on such islands. At the same time, they represent a major geological hazard that must be looked into to avoid negative consequences for the inhabitants of these islands. Their occurrence can be related to periods of intense seismo-volcanic activity, similar to that which occurred on El Hierro Island over 2011-2012. Landslides on volcanic islands are studied using onshore and offshore geological, geophysical and geomorphological records, considering their unique triggering conditions (e.g. lava intrusions, eruptive vents, magma chamber collapses). Previous work has pointed out similarities between specific cases of landslides on volcanic islands and deep-seated gravitational slope deformations (DSGSDs) which are typical in high mountain settings. Nevertheless, the methodological approaches and concepts used to investigate DSGSDs are not commonly applied on volcanic islands studies, even though their use may provide new information about the development stage, recent movements and future hazards. Therefore, this approach for studying the San Andrés landslide (SAL) on El Hierro (Canary Islands) has been developed applying a detailed morphological field mapping, an interpretation of digital elevation models, structural measurements, kinematic testing, and a precise movement monitoring system. The acquired information revealed a strong structural influence on the landslide morphology and the presence of sets of weakened planes acting as the sliding surfaces of the SAL or secondary landslides within its body. The presence of secondary landslides, deep erosive gullies, coastal cliffs and high on-shore relative relief also suggests a high susceptibility to future landslide movement. Direct monitoring on the landslide scarps and the slip plane, performed between February 2013 and July 2014, using an automated optical-mechanical crack gauge with a precision of up to 10-2 mm, detected creep movement in the order of 1 mm yr-1 with a persistent sinistral component as well as episodic horizontal and a subtle vertical movement. This monitoring will continue in the future in order to verify the initial observations, which instead of long-term movement patterns, could represent a landslide response to the period of an intense seismo-volcanic activity during 2011-12.The authors would like to thank the National Geographic Society/Waitt Grants Program (No. W244-12) and CzechGeo/EPOS (Project No. LM2010008) for the financial support of the research. We also thank the Spanish National Geographical Institute and the El Hierro Island Authority whose personnel provided us with useful support during the field installation of the measuring instruments. This work was carried out thanks to the unconditional support of the long-term conceptual development research organisation RVO: 67985891.Peer reviewe

Long-term volcanic hazard assessment on El Hierro (Canary Islands)

Long-term hazard assessment, one of the bastions of risk-mitigation programs, is required for land-use planning and for developing emergency plans. To ensure quality and representative results, long-term volcanic hazard assessment requires several sequential steps to be completed, which include the compilation of geological and volcanological information, the characterisation of past eruptions, spatial and temporal probabilistic studies, and the simulation of different eruptive scenarios. Despite being a densely populated active volcanic region that receives millions of visitors per year, no systematic hazard assessment has ever been conducted on the Canary Islands. In this paper we focus our attention on El Hierro, the youngest of the Canary Islands and the most recently affected by an eruption. We analyse the past eruptive activity to determine the spatial and temporal probability, and likely style of a future eruption on the island, i.e. the where, when and how. By studying the past eruptive behaviour of the island and assuming that future eruptive patterns will be similar, we aim to identify the most likely volcanic scenarios and corresponding hazards, which include lava flows, pyroclastic fallout and pyroclastic density currents (PDCs). Finally, we estimate their probability of occurrence. The end result, through the combination of the most probable scenarios (lava flows, pyroclastic density currents and ashfall), is the first qualitative integrated volcanic hazard map of the island.This research was partially funded by IGME, CSIC and the European Commission (FT7 Theme: ENV.2011.1.3.3-1; Grant 282759: “VUELCO”), and MINECO grant CGL2011-16144-E.Peer reviewe

La evaluación formativa en la enseñanza universitaria: un estudio comparativo entre los estudiantes de dos asignaturas de educación musical de la Facultad de Educación de Segovia

Dentro de los profundos cambios que el Espacio Europeo de Educación Superior (EEES) ha generado en los sistemas de evaluación de las universidades este artículo presenta dos experiencias de “buenas prácticas” de evaluación formativa y compartida en la formación inicial de los Maestros en Educación Primaria e Infantil, implementadas en dos asignaturas vinculadas con la educación musical. Con ello se pretende mejorar los aprendizajes y los procesos de enseñanza-aprendizaje propios de un sistema de evaluación acorde con los planteamientos del proceso de convergencia hacia el EEES. La metodología cuantitativa empleada se ha basado en un cuestionario cuyos resultados obtenidos muestran las valoraciones positivas de los estudiantes universitarios cuando en se introducen sistemas de evaluación formativa y compartida, así como metodologías de aprendizaje cooperativo, con la finalidad de fomentar la adquisición y desarrollo de competencias docentes propias del título.Dins dels profunds canvis que l'Espai Europeu d'Educació Superior (EEES) ha generat a les universitats, aquest article se centra en els que afecten els sistemes d'avaluació. Presenta dues experiències de bones pràctiques d'avaluació formativa i compartida en la formació inicial dels mestres en Educació Primària i Infantil, implementades en dues assignatures vinculades amb l'educació musical. Amb això es pretén millorar els aprenentatges i els processos d'ensenyament-aprenentatge propis d'un sistema d'avaluació d'acord amb els plantejaments del procés de convergència cap a l'EEES. . La metodologia quantitativa emprada s'ha basat en un qüestionari, els resultats obtinguts mostren les valoracions positives dels estudiants universitaris quan en la seva formació inicial s'introdueixen sistemes d'avaluació formativa i compartida, així com metodologies d'aprenentatge cooperatiu, amb la finalitat de fomentar l'adquisició i desenvolupament de competències docents pròpies del títol.Within the major changes that the European Higher Education Area (EHEA) has generated in universities, this article focuses on those that affect assessment systems. It presents two experiences of "good practices" of formative and shared assessment in the initial training of Early and Primary Education Teachers, implemented in two subjects linked to music education. The aim is to improve learning and teaching-learning processes specific of an evaluation system in line with the approach of the convergence process towards the EHEA. The used quantitative methodology was based on a questionnaire, whose obtained results show positive evaluations of university students when formative and shared assessment systems and cooperative learning methodologies are introduced at their initial training, in order to promote the acquisition and development of inherent teaching skills at their studies.

A Rapid, Low-Cost, and Scalable Technique for Printing State-of-the-Art Organic Field-Effect Transistors

In the last few years exciting advances have been achieved in developing printing techniques for organic semiconductors, and impressive mobility values have been reported for the resulting organic field-effect transistors (OFETs). However, not all these techniques are scalable and some of them require additional crystallization steps. This study reports on the fabrication of OFETs employing blends of four benchmark organic semiconductors with polystyrene and demonstrates that applying the same formulation and experimental conditions for printing them, highly reproducible and uniform crystalline films exhibiting high OFET performance are successfully achieved. It is noted that the mobility values achieved here are not the highest reported for the studied materials; however, they are state-of-the-art values and could be regarded as exceptional considering the low cost and fast speed of the fabrication process involved here.This work was mainly funded by the ERC StG 2012 306826 e GAMES and ERC PoC 2014 640120 LAB TECH projects. The authors also thank the Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER BBN), the DGI (Spain) project BE WELL CTQ2013 40480 R, the Generalitat de Catalunya (2014 SGR 17) and the Spanish Ministry of Economy and Competitiveness, through the “Severo Ochoa” Programme for Centres of Excellence in R&D (SEV 2015 0496). The authors would like to thank the ICTS "NANBIOSIS", more specifically to the Nanotechnology Platform, unit of CIBER BBN at the Institute for Bioengineering of Catalonia (IBEC) for their assistance in ToF SIMS analyses. I. T. acknowledges FPU fellowship from the Ministery and the Materials Science PhD Program of Universitat Autònoma de Barcelona. F. G. D. P. thanks Universidad Técnica de Ambato and Secretaría de Educación Superior, Ciencia, Tecnología e Innovación for funding through a doctoral scholarship “Convocatoria abierta 2010”.Peer reviewe

Ischemic heart disease and primary care: identifying gender-related differences. An observational study

Background: Gender-related differences are seen in multiple aspects of both health and illness. Ischemic heart disease (IHD) is a pathology in which diagnostic, treatment and prognostic differences are seen between sexes, especially in the acute phase and in the hospital setting. The objective of the present study is to analyze whether there are differences between men and women when examining associated cardiovascular risk factors and secondary pharmacological prevention in the primary care setting. Methods: Retrospective descriptive observational study from January to December of 2006, including 1907 patients diagnosed with ischemic heart disease in the city of Lleida, Spain. The clinical data were obtained from computerized medical records and pharmaceutical records of medications dispensed in pharmacies with official prescriptions. Data was analyzed using bivariate descriptive statistical analysis as well as logistic regression. Results: There were no gender-related differences in screening percentages for arterial hypertension, diabetes, obesity, dyslipemia, and smoking. A greater percentage of women were hypertensive, obese and diabetic compared to men. However, men showed a tendency to achieve control targets more easily than women, with no statistically significant differences. In both sexes cardiovascular risk factors control was inadequate, between 10 and 50%. For secondary pharmaceutical prevention, the percentages of prescriptions were greater in men for anticoagulants, beta-blockers, lipid-lowering agents and angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers, with age group variations up to 10%. When adjusting by age and specific diagnoses, differences were maintained for anticoagulants and lipid-lowering agents. Conclusion: Screening of cardiovascular risk factors was similar in men and women with IHD. Although a greater percentage of women were hypertensive, diabetic or obese, their management of risk factors tended to be worse than men. Overall, a poor control of cardiovascular risk factors was noted. Taken as a whole, more men were prescribed secondary prevention drugs, with differences varying by age group and IHD diagnosis

A rapid, low-cost, and scalable technique for printing state-of-the-art organic field-effcet transistors

In the last few years exciting advances have been achieved in developing printing techniques for organic semiconductors, and impressive mobility values have been reported for the resulting organic field-effect transistors (OFETs). However, not all these techniques are scalable and some of them require additional crystallization steps. This study reports on the fabrication of OFETs employing blends of four benchmark organic semiconductors with polystyrene and demonstrates that applying the same formulation and experimental conditions for printing them, highly reproducible and uniform crystalline films exhibiting high OFET performance are successfully achieved. It is noted that the mobility values achieved here are not the highest reported for the studied materials; however, they are state-of-the-art values and could be regarded as exceptional considering the low cost and fast speed of the fabrication process involved here.Peer ReviewedPostprint (published version

Where is thermal energy storage (TES) research going? - A bibliometric analysis

Energy storage technologies can provide energy security, fight climate change, and improve the value of current or future energy systems. Thermal Energy Storage (TES) is a key enable technology, it allows to stock thermal energy that can be further used for heating and cooling applications and power generation. The methods and tools used to analyse all the literature about the evolution of TES systems research are described in this paper. Bibliometrics is the science that studies, in a statistical way, the written publications of a certain field of research, and it is considered one of the few interdisciplinary research fields that can be extended to almost all scientific areas. The bibliometric analysis of the database Web-of-science (core collection) shows highlighted information in order to figure out the scientific outputs. The importance of the bibliometrics is to analyse a knowledge development from a strategic point of view in order to detect its evolution regarding the research in such a field and to detect which are the opportunities within this area. This study presents the publication evolution in TES field over the last two decades, per year, per country, per authors, per journal, and per TES technology, taking into account sensible heat TES (SHTES), latent heat TES (LHTES), and thermochemical energy storage (TCS), and considering the connection between authorship communities and country interactions. The communities are obtained from the co/authorships, regardless of the country or affiliation; this permits to view the size of the communities, as well as to identify collaboration opportunities between communities with low or no interaction. Furthermore, studies are included regarding detailed analysis on each TES technology, as well as other factors (such as funding) that can influence the current and future research

Examining a syndemic framework for HIV and sexually transmitted infections Risk in Cali, Colombia.

Objetivo: Examinar el papel desempeñado por cuatro afecciones psicosociales: sexo forzado, iniciación sexual temprana, uso inadecuado de alcohol y drogas ilícitas en el riesgo de VIH e infecciones de transmisión sexual, en Cali-Colombia entre 2013-2015. Métodos: Utilizando datos de una campaña de consejería y pruebas de VIH en Cali, Colombia, probamos el efecto de la acumulación e interacciones de las cuatro condiciones psicosociales en la positividad al VIH y la positividad a otras enfermedades de transmisión sexual. Resultados: 604 participantes de las principales comunidades afectadas: hombres que tienen sexo con hombres, mujeres transgénero y trabajadoras sexuales. 733 participantes mujeres y hombres heterosexuales. Solo, abuso de drogas se asoció con positividad VIH (Razón de prevalencia = 2.3, IC 95%: 1.3–4.1), mientras que, todas las condiciones psicosociales se asociaron con historia de infecciones de transmisión sexual. La acumulación de condiciones sindémicas se relacionó con mayor probabilidad de historia de infecciones de transmisión sexual. Ninguna interacción probada fue significativa. Conclusiones: Nuestros hallazgos resaltan la importancia de intervenciones integrales de salud mental para abordar la epidemia de VIH en Colombia.Objective: We examined the role played by four psychosocial conditions: forced sex, early sexual initiation, and misuse of alcohol and illicit drugs on the risk of HIV and sexually transmitted infections in Cali-Colombia between 2013 and 2015. Methods: Using data from an HIV counseling and testing campaign in Cali, Colombia, we tested the effect of the accumulation and interactions of the four psychosocial conditions on both outcomes. Results: A total of 604 participants were representative subjects from key affected communities: men who have sex with men, transgender women and female sex workers. A total of 733 participants were heterosexual women and men. Only drug abuse was associated with HIV positivity (Prevalence ratio=2.3, CI 95%: 1.3–4.1), while all psychosocial conditions were associated with sexually transmitted infection history. The accumulation of the syndemic conditions was related to a higher likelihood of sexually transmitted infection history. None of the interactions tested was significant. Conclusions: Our findings highlight the importance of comprehensive mental health interventions in addressing HIV epidemics in Colombia

Syn-Eruptive Lateral Collapse of Monogenetic Volcanoes: The Case of Mazo Volcano from the Timanfaya Eruption (Lanzarote, Canary Islands)

The evolution of complex volcanic structures usually includes the occurrence of flank collapse events. Monogenetic cones, however, are more stable edifices with minor rafting processes that remove part of the cone slopes. We present the eruptive history of Mazo volcano (Lanzarote, Canary Islands), including the first detailed description of a syn-eruptive debris avalanche affecting a volcanic monogenetic edifice. The study and characterization, through new geological and morphological data and the analysis of a great number of documentary data, have made it possible to reinterpret this volcano and assign it to the Timanfaya eruption (1730–1736). The eruptive style evolved from Hawaiian to Strombolian until a flank collapse occurred, destroying a great part of the edifice, and forming a debris avalanche exhibiting all the features that define collapsing volcanic structures. The existence of blocks from the substrate suggests a volcano-tectonic process associated with a fracture acting simultaneously with the eruption. The sudden decompression caused a blast that produced pyroclasts that covered most of the island. This study forces to change the current low-hazard perception usually linked to monogenetic eruptions and provides a new eruptive scenario to be considered in volcanic hazards analysis and mitigation strategies development