473 research outputs found
Impact of climate change on wave energy resource: the case of Menorca (Spain)
The aim of this paper was to analyse how changes in wave patterns, due to the effect of climate change, can affect wave energy power and yield around Menorca (NW Mediterranean Sea). The present and future wave energy conditions were derived from recently developed high-resolution wave projections in the NW Mediterranean. These wave projections were forced by surface wind fields obtained, respectively, by 5 different combinations of global and regional circulation models (GCMs and RCMs) for the A1B scenario. The results showed that the projected future spatial and directional distributions of wave energy are very similar to those of the present conditions. The multi-model ensemble average illustrated a slight general decrease in the annual and seasonal wave power (except for summer). However, the inter-model variability is large since two models showed opposite trends to the other 3 in most cases. Such inter-model variability is lower(higher) for winter(autumn). Another result is the reduction of the temporal variability in the future, considering both the multi-model mean and each single model projection. Such a decrease is consistent with the future seasonal redistribution of energy throughout the year. This would entail an increase in the efficiency of wave energy converters deployed in this area due to the more regular temporal distribution of the energy.Peer ReviewedPostprint (author's final draft
Evolution of the concepts and paradigms that guide the environmental management; what are their limitations in the glocal context?
In this article was made an analysis of the chronological evolution of different paradigms and concepts related to the environmental management (EM). the review highlights those that have impacts on the guidance of the EM in the country and the concept of associated development, as well as the considered approaches and dimensions for establishing the relations between them. Although the environmental management is one of the public functions shared with the society, the implemented model of EM has been unidirectional and this limited the inter institutional interaction with the communities and the interdisciplinary relations. If this situation have a glocal-logic point of view in different ecosystems and regions, the predominance of the economic growth approach is evident with a low interaction between know-how and knowledge, that circumstance restrict the construction of sustainable management alternatives and generate environmental actions isolated. Key words: management, ecosystems, environment, paradigm. Key words: management, ecosystems, environment,paradigm.El presente artículo aborda la evolución cronológica de diferentes paradigmas y conceptos relacionados con la gestión ambiental (GA). Para ello, hace énfasis en aquellos que han incidido en la dirección de la GA en el país, e identifica el concepto de desarrollo asociado, así como los planteamientos y dimensiones considerados para establecer las relaciones existentes entre los mismos. Si bien la gestión ambiental es una de las funciones públicas compartidas solidariamente con la sociedad, su implementación ha sido unidireccional, lo que ha promovido modelos homogeneizadores que limitan la interacción con las comunidades y las relaciones interinstitucionales e interdisciplinarios. Si se observa esta situación desde una lógica glocal en diferentes ecosistemas y regiones, es evidente el predominio del enfoque de crecimiento económico con una escasa interacción entre saberes y conocimiento, situación que limita la construcción de alternativas de manejo sostenible y desencadena acciones ambientales desarticuladas
C-reactive protein and Coronary Heart Disease
Presentation on "C-reactive protein and Coronary Heart Disease" from the PATHWAYS node's course on Introduction to Biomarkers for Social Scientists, 4 April 2013
Creando música con la pizarra digital : comunicación presentada al II Congreso DIM-Aulatic 18 y 19 de marzo del 2010
Se propone la composición colaborativa de una pieza musical con alumnos de 6º de Primaria usando una Pizarra Digital Interactiva (PDI). Se analizan las actitudes de los alumnos ante aspectos concretos del día a día del aula de música (mediante la técnica de Diferencial Semántico) para contrastar el uso de las PDI con otras metodologías más tradicionales.We propose the collaborative composition of a piece of music with students from 6th grade using an interactive whiteboard (IWB). We analyze the students' attitudes to specific aspects of everyday classroom music (through the Semantic Differential technique) to contrast the use of IWB with other more traditional methodologies
The carriers of AMS in remagnetized carbonates. Insights for remagnetization mechanism and basin evolution
Magnetic fabrics are usually studied to unravel the evolution of sedimentary basins, mainly focusing the attention in paramagnetic minerals. However, since basins are sometimes affected by burial-related chemical remagnetizations, magnetic fabrics can also be carried by authigenic ferromagnetic minerals related to remagnetization processes. Consequently, the study of the different types of fabrics can give complementary and valuable information about the evolution of sedimentary basins. Here, we explore, in the Jurassic carbonates of the Central High Atlas (Morocco), the role in magnetic fabrics of authigenic magnetite that grew during the Cretaceous (ca. 100 Ma) widespread remagnetization event.
Magnetic fabrics are studied in 53 sites using the anisotropy of the magnetic susceptibility measured at room temperature (RT-AMS) and comparing results with sub-fabrics that alternatively enhance the paramagnetic and the ferromagnetic signal. Furthermore, an innovative analysis is proposed, comparing the magnetic fabrics before and after bedding correction (the common procedure) with fabric orientation after partial bedding correction. We use the paleomagnetic information to reconstruct the attitude of bedding at the remagnetization time and to restore the magnetic fabrics at this time.
The performed analysis allows interpreting RT-AMS in terms of the contribution of different subfabrics, and the relationship between these, tectonic processes and the magnetic mineralogy. Four RT-AMS types are defined: T1 is carried by superparamagnetic magnetite that grew during the remagnetization stage and shows a horizontal lineation parallel to the extension direction at this time; T3 and T4 are carried by paramagnetic minerals and show compressive fabrics with the magnetic lineation parallel to intersection (bedding-cleavage) lineation; finally, T2 shows a mix between ferrimagnetic and paramagnetic fabrics.MINECO (Spanish Ministry of Economy and Competitiveness) cofinanced by the ERDF (European Union) (research projects CGL2012-38481 and CGL2016-77560)
A review of potential physical impacts on harbours in the Mediterranean Sea under climate change
The final publication is available at Springer via http://dx.doi.org/10.1007/s10113-016-0972-9The potential impact of climate change on port operations and infrastructures has received much less attention than the corresponding impact for beach systems. However, ports have always been vulnerable to weather extremes and climate change could enhance such occurrences at timescales comparable to the design lifetime of harbour engineering structures. The analysis in this paper starts with the main climatic variables affecting harbour engineering and exploitation. It continues with a review of the available projections for such variables first at global scale and then at a regional scale (Catalan coast in the western Mediterranean) as a study case for similar environments in the planet. The detailed assessment of impacts starts from downscaled projections for mean sea level and wave storms (wind not considered in the paper). This is followed by an analysis of the port operations and infrastructure performance that are relevant from a climate perspective. The key climatic factors here considered are relative sea level, wave storm features (height, period, direction and duration) and their combined effect, which is expected to produce the highest impacts. The paper ends with a discussion and some examples of analyses aiming at
port adaptation to future climate change.Peer ReviewedPostprint (author's final draft
La hermenéutica en la Teoría Comunicacional del Derecho: la teoría de textos
The Communication Theory of Law –TCD– of the Spanish professor Gregorio Robles Morchón assumed from the beginning the idea that Law is basically an exercise of communication of meanings. Using the theories of Dilthey and Gadamer, Robles rethink the notion of text overcoming the limitation imposed by the classic view of positivism (now in crisis). Starting from Law as a hermeneutic exercise (Hermeneutic Theory of Law) and from an optimistic vision of hermeneutics, it will be shown how the TCD offers a revitalization of the hermeneutic work and becomes useful in the teaching of Law.La Teoría Comunicacional del Derecho –TCD– del profesor español Gregorio Robles Morchón asumió desde su concepción la idea de que el derecho es básicamente un ejercicio de comunicación de significados. A partir de las teorías de Dilthey y Gadamer, Robles replantea la noción de texto superando la limitación que imponía la visión clásica del positivismo (ahora en crisis). Partiendo del derecho como ejercicio hermenéutico (Teoría Hermenéutica del Derecho) y de una visión optimista de la hermenéutica, se verá como la TCD ofrece una revitalización del quehacer hermenéutico y se torna útil en la enseñanza del Derecho
Formación permanente de maestros en el Parque Explora: una aproximación a la comunidad Astromae
The article it is a cuantitative investigation called permanent formation for teachers in different places of the facultates of education a study of case in relation with the Teachers Friends of Explora-Astromae. At the one they will retake speaches by the teachers about the perceptions that they have about the Astromae. In which teachers’ discourses were take up again regarding their perceptions about Astromae community by means of semi-structured interviews. These enabled to gather categories that account for characteristics of an unconventional scenario, and subsequently, to understand the theoretical concepts such as permanent training, learning communities, collaborative work and teaching practice that contribute to the findings and will serve as a support to teachers’ voice.El presente artículo está enmarcado en una investigación cualitativa Formación permanente de maestros en el Parque Explora: una aproximación a la comunidad Astromae,4 en el que se retomaron los discursos de los maestros con respecto a las percepciones que tienen de la comunidad Astromae referido al aporte a su práctica de enseñanza. Se recogieron los discursos de los maestros participantes, no participantes, y coordinadores de la comunidad mediante entrevistas semiestructuradas, las cuales permitieron reunir categorías que dan cuenta de unas características propias de conceptos teóricos como: formación permanente, comunidade de aprendizaje, trabajo colaborativo y práctica de enseñanza que aportan a los hallazgos y que sirven de soporte en la voz de los maestros en la discusión
Evolución de los conceptos y paradigmas que orientan la gestión ambiental ¿cuáles son sus limitaciones desde lo glocal?
In this article was made an analysis of the chronological evolution of different paradigms and concepts related to the environmental management (EM). the review highlights those that have impacts on the guidance of the EM in the country and the concept of associated development, as well as the considered approaches and dimensions for establishing the relations between them. Although the environmental management is one of the public functions shared with the society, the implemented model of EM has been unidirectional and this limited the interinstitutional interactionwith the communities and the interdisciplinary relations. If this situation have a glocal-logic point of view in different ecosystems and regions, the predominance of the economic growth approach is evident with a low interaction between know-how and knowledge, that circumstance restrict the construction of sustainable management alternatives and generate environmental actions isolated. Key words: management, ecosystems, environment, paradigm. Key words: management, ecosystems, environment,paradigm.El presente artículo aborda la evolución cronológica de diferentes paradigmas y conceptos relacionados con la gestión ambiental (GA). Para ello, hace énfasis en aquellos que han incidido en la dirección de la GA en el país, e identifica el concepto de desarrollo asociado, así como los planteamientos y dimensiones considerados para establecer las relaciones existentes entre los mismos. Si bien la gestión ambiental es una de las funciones públicas compartidas solidariamente con la sociedad, su implementación ha sido unidireccional, lo que ha promovido modelos homogeneizadores que limitan la interacción con las comunidades y las relaciones interinstitucionales e interdisciplinares. Si se observa esta situacióndesde una lógica glocal en diferentes ecosistemas y regiones, esevidente el predominio del enfoque de crecimiento económico con una escasa interacción entre saberes y conocimiento, situación que limita la construcción de alternativas de manejo sostenible y desencadena acciones ambientales desarticuladas
Extensional vs. compressional deformation in the Central High Atlas salt province: a paleomagnetic approach
In this paper we address the problem of the distinction between diapiric, salt-driven and compressional structures, using the outstanding example of the Central High Atlas (Morocco). A remagnetized component carried by magnetite has been isolated in 32 new paleomagnetic sites. It is characterized by: maximum unblocking temperatures around 450 °C, syn-folding behavior and normal polarity.
These 33 mean paleomagnetic directions were analyzed together with other 68 from published works around the study area to construct a robust paleomagnetic dataset along a cross-section perpendicular to the main structures. The remagnetization direction (n: 100, Dec: 332.2°, Inc: 34.5°, η: 6.2°, ξ: 2.0°, A/n: 6.427°) and the paleo-dip of beds (the attitude of the beds at the remagnetization occurrence) were calculated through small circle methods. The remagnetization can be dated as ca. 100 Ma. Because of its occurrence between the extensional and compressional periods, this remagnetization offers the possibility of restore the basin to its pre-inversion geometry.
Comparison between present-day and pre-inversion structure allows discriminating three different evolutionary patterns: (i) thrusted and welded salt-walls mainly structured during the extensional stage (Ikkou ridge) with steep limbs close to the salt-wall core. (ii) Jurassic salt-walls with weaker deformation, restricted to the areas adjacent to the structure (Tadaghmamt and Timedouine); in this case, Cenozoic compression is limited to welding of the salt-walls and buttressing of the sedimentary sequences against faults. (iii) salt-rollers gently initiated during the Jurassic (Toumliline diapir), thrusted during the Cenozoic compression. Results show the importance of salt tectonics both during extension and compression, as well as the control of the compressional features by the inherited extensional structures. The performed restorations prove that paleomagnetism is a useful, independent tool to obtain palinspastic restorations and to separate, and quantify, the imprint generated during the basinal stage from the inversional features.MINECO (Spanish Ministry of Economy and Competitiveness) cofinanced by the ERDF (European Union) (research projects CGL2012-38481 and CGL2016-77560
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