The spatial shift-share analysis - new developments and some findings for the Spanish case

The main feature of shift-share analysis is, according to Dunn (1960), the computation of geographical shifts in economic activity. Nevertheless, the traditional shift-share approach does not include explicitly the interaction between the considered spatial units (countries, municipalities, regions, etc) since each of these units is considered to be independent with respect to the others. The consideration of the spatial dependence was suggested by some authors who recognized that the decomposed effects are not spatially independent. Nazara y Hewings (2002, 2004) take up this idea again and implement a new shift-share model based on the existence of spatial dependence between the geographic units by means of the definition of a spatial weight matrix. In this paper a comparative analysis of the different models is carried out. The obtained conclusions are also illustrated with some empirical applications related to municipalities.

The influence of internet as an academic tool in the development of second language acquisition in students of Intensive Intermediate English courses from the Foreign Language Department at the University of El Salvador, year 2018

New methodologies, resources, techniques, approaches and technologies are becoming more and more popular at the time of teaching and learning a foreign language. In all these interaction with new ways of teaching and learning, the internet is becoming probably the most used and reliable tool that offers an almost unlimited source of resources to improve the second language acquisition. Thus, the interaction, use or integration of internet as an academic tool is becoming more and more necessary. Institutions all over the world are implementing new methodologies based on internet to improve or make the learning process more attractive and convenient not only for students but also for educators. Different types of academic platforms, social networks, general websites,authentic material and many other examples of resources are offered by this technology. This, at the same time requires relying on the access of equipment that allows controlling the use of technology with an academic purpose. Academies and other institutions that offer the opportunity to learn a foreign language are evolving and updating their resources in order to take advantage of this technology. By doing so, they not only assure a close interaction between the and the student but they also offer a wide variety of tools and opportunity for the students to improve their skills

All roads lead to Rome: Results of non-invasive respiratory therapies applied in a tertiary-care hospital without an Intermediate Care Unit during the COVID-19 pandemic

Documento escrito por un elevado número de autores/as, solo se referencia el/la que aparece en primer lugar y los/as autores/as pertenecientes a la UC3M.Introducción: Las terapias respiratorias no invasivas (TRNI) fueron ampliamente utilizadas en la primera ola de la pandemia de COVID-19, en escenarios distintos según los medios disponibles. El objetivo fue presentar la supervivencia a 90 días y los factores asociados a esta de los pacientes tratados con TRNI en un centro de tercer nivel sin Unidad de Cuidados Respiratorios Intermedios. Como objetivo secundario comparar los resultados obtenidos de las distintas terapias. Métodos: Estudio observacional de pacientes tratados con TRNI fuera de un ambiente de Cuidados Intensivos o Unidad de Cuidados Respiratorios Intermedios, diagnosticados de COVID-19 y con síndrome de distrés respiratorio agudo por criterios radiológicos y de ratio SpO2/FiO2. Se desarrolló un modelo multivariante de regresión logística para determinar las variables independientemente asociadas, y se compararon los resultados de la terapia de alto flujo con cánula nasal y la presión positiva continua en la vía aérea. Resultados: Se trataron 107 pacientes y sobrevivieron 85 (79,4%) a los 90 días. Antes de iniciar la TRNI el ratio medio de SpO2/FiO2 fue de 119,8 ± 59,4. Un mayor score de SOFA se asoció significativamente a la mortalidad (OR 2,09; IC95% 1,34 - 3,27), mientras que la autopronación fue un factor protector (OR 0,23; IC95% 0,06 - 0,91). La terapia de alto flujo con cánula nasal fue utilizada en 63 sujetos (58,9%), y la presión positiva continua en la vía aérea en 41 (38,3%). No se encontraron diferencias entre ellas. Conclusión: Aproximadamente cuatro de cada cinco pacientes tratados con TRNI sobrevivieron a los 90 días, y no se encontraron diferencias significativas entre la terapia de alto flujo con cánula nasal y la presión positiva continua en la vía aérea.Introduction: Non-invasive respiratory therapies (NRT) were widely used in the first wave of the COVID-19 pandemic in different settings, depending on availability. The objective of our study was to present 90-day survival and associated factors in patients treated with NRT in a tertiary hospital without an Intermediate Respiratory Care Unit. The secondary objective was to compare the outcomes of the different therapies. Methods: Observational study of patients treated with NRT outside of an intensive care or intermediate respiratory care unit setting, diagnosed with COVID-19 and acute respiratory distress syndrome by radiological criteria and SpO2/FiO2 ratio. A multivariate logistic regression model was developed to determine independently associated variables, and the outcomes of high flow nasal cannula and continuous positive airway pressure were compared. Results: In total, 107 patients were treated and 85 (79.4%) survived at 90 days. Before starting NRT, the mean SpO2/FiO2 ratio was 119.8 ± 59.4. A higher SOFA score was significantly associated with mortality (OR 2,09; 95% CI 1.34-3.27), while self-pronation was a protective factor (OR 0.23; 95% CI 0.06-0.91). High flow nasal cannula was used in 63 subjects (58.9%), and continuous positive airway pressure in 41 (38.3%), with no differences between them. Conclusion: Approximately 4 out of 5 patients treated with NRT survived to 90 days, and no significant differences were found between high flow nasal cannula and continuous positive airway pressure

Imagen molecular en medicina

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Coal-Tar Pitch Utilization

Coal tar pitch has been traditionally used in the aluminium and graphite industry as a binder for anode and electrode manufacture. Further, coal-tar pitches have been studied as matrix precursors in carbon-carbon composites for carbon foam preparation and for energy storage carbons among others. The possibility of obtaining a wide range of carbon materials of different structure and properties,depending on the characteristics of the parent pitch, or even from the same pitch by simply changing the experimental conditions, makes pitch a very suitable product for the tailoring of carbon materials. Currently, improved coal-based pitches are in the process of being developed from tar fractions, such as anthracene-oil with no QI, with the aim of obtaining graphitic materials. This paper offers an overview of traditional uses of coal tar pitches, their main markets and their potential as carbon material precursors.Peer reviewe

Limitaciones tecnológicas de la tomografía por emisión de positrones (PET) para pequeños animales de laboratorio

La visualización y cuantificación de la función de determinados órganos en animales de laboratorio mediante PET está demostrando ser una herramienta de gran relevancia para la caracterización del fenotipo de animales transgénicos y noqueados, en el estudio de modelos de enfermedades humanas, así como para el descubrimiento y desarrollo de nuevos medicamentos y sondas bioquímicas. Para poder utilizar la PET en animales de laboratorio de un modo análogo al que se aplica en humanos es necesario contemplar el factor de escala en el tamaño del vóxel así como mantener una similar estadística de contaje. En este trabajo se apuntan los problemas que estos requerimientos representan tanto para el diseño técnico de los tomógrafos como para la realización de los experimentos, y desde esta perspectiva se analizan las soluciones tecnológicas más relevantes. Finalmente, se comentan brevemente algunas características de sistemas disponibles hoy comercialmente (microPET y FOCUS, HiDAC, eXplore VISTA, MOSAIC, YAP-(S)PET y rPET)Publicad

El discurso de género del profesorado de educación infantil: hablando acerca de la ética del cuidado.

In this paper we will show some of the results of research which took place in the Principality of Asturias. Its purpose was finding out the gender discourses used by nursery teachers. Although we will not provide an exhaustive list of all the conclusions reached so far, we will put forward one of the aspects which has been developed throughout the investigation; that is, the differences observed by the teachers in boys and girls' caring and supporting behaviours. In order to do so, we focus on the type of discourse related to the ethic of care. We consider it a tool which allows teachers to build a type of narrative in which boys and girls are presented as opposites, relational and different from one another