CAOS/COMPLEJIDAD, FRACTALES E IDENTIDADES SOCIALES

En el presente artículo se presenta una propuesta para articular elementos básicos de la Teoría del Caos/Complejidad y la geometría fractal con el estudio de las identidades sociales, partiendo de la tesis que dicha teoría presenta una revolución paradigmática desde cuestiones epistemológicas, la cual es consecuencia no de la transformación de la realidad, sino de la modificación del esquema de percepción que de ella se ha dado en las ciencias en el último siglo, cuestión que también es posible observar en el estudio de las identidades sociales

Use of autologous conditioned serum (Orthokine®) for the treatment of the degenerative osteoarthritis of the temporomandibular joint.: review of the literature

Objectives: Treatment of osteoarthritis (OA) using autologous conditioned serum (ACS) has become in recent years an alternative to consider in the approach of the degenerative joint disease of the knee. There is no support in the literature for the use of ACS for the treatment of OA of the temporomandibular joint (TMJ), although the promising results obtained in human patients with knee joint disease as well as in animal studies are opening the way for its use at the TMJ. The aim of this paper is to conduct a review of the published literature regarding the use of the ACS for the treatment of OA in humans, considering the level of scientific evidence, and following the principles of the evidence-based medicine and dentistry. Material and Methods: A PubMed-MEDLINE search was carried out of articles published between 1980 and 2011. After an initial search, a total of 102 articles were obtained, followed by a selection of the most relevant articles according to the topic; a total of 8 articles were selected, which were stratified according to their level of scientific evidence using SORT criteria (Strength of Recommendation Taxonomy). Results: At the time of this review, there is no available literature referring the use of ACS at the TMJ. However, the use of the ACS in other joints is well documented, both experimentally and clinically, in humans and animals. The reviewed articles, with a level of evidence 1 and 2 according to the SORT criteria, have generally promising results. Discussion and Conclusions: The use of ACS in the treatment of OA in joints other than the TMJ, is endorsed by the level of evidence found in the literature, which opens the door to future studies to determine the feasibility of the use of the ACS in the treatment of degenerative OA that affects TMJ

Inventory and assessment of fluvial potholes to promote geoheritage sustainability (Miño River, NW Spain)

The Miño is the most important river in the NW Iberian Peninsula. When it flows through Ourense town (Spain), the attractiveness of the thermal springs hides the importance of the fluvial potholes developed over bedrock. These forms reflect the strength of erosion processes, linked to fluvial incision over time. Potholes have an environmental, didactic, socio-economic and cultural potential. In order to promote their integration within territorial heritage, this research is focused on a place-based knowledge and practice. This study aimed to define the meanings and interests of fluvial potholes, regarding their sustainable uses as georesources and offering fit information for the key social actors to assist territorial development. An inventory of sculpted forms was carried out in an urban reach of the Miño River. After the site diagnosis and form characterisation, a set of fluvial potholes (82 cases) was identified within the thermal area. The assessment of the geomorphological and use/management interests delivered their values as resources for territorial sustainability. Ten potholes, selected from a preliminary list and identified through the methodology, have a potential for education, leisure and recreation. Actions designed to raise awareness of the interests and values of these geodiversity components are also presented.Xunta de Galicia | Ref. ED481A-2015/410Universidade de Vigo | Ref. INOU15-02 G501Deputación de Ourense | Ref. INOU15-02 G50

Research, management and water values in today’s world

This volume of the series Perspectives of Water tries various aspects about the research, planning of uses, management and socio-cultural values of aquatic systems in the contemporary period. The contributions induding analyse the relationship between water and human communities in the workl today from scientific, political, social and cultural perspectives. Water is a natural good indispensable for any human activity whose value must be investigated, known and disseminated (European Council, 1968) taking account its role as a resource for the well-being in the international human rights framework (World Health Organization, 2003; United Nations, 2010). The protection, improvement and rational management of aquatic systems are also goals of sustainable development into the future, defined by Agenda 2030 (United Nations, 2015) where education is seen as a process that favours the creation of innovative solutions for current problems of water. At the same time, the generations of actions for sustainability, especially directed toward the integrated management of water resources, are promoted by the declaration of the 2018-2028 Decade of Action by the Water (United Nations, 2016). In Europe, both protection and sustainable use and management of the waters (continental,transitional, coas tal and groundwater) are regulated by the Directive 2000/60/EC in order to prevent their pollution, protect and/or improve their status, mitigate the effects of floods and droughts, and hdp to ensure a long-term equitable provision. This impulse from the institutional sphere represents an opportunity to prioritize the importance of water as a resource of humanity and highlights the relevance of the ítem to encourage the exchange of ideas and collaboration between researchers, managers and social groups particularly interested in aquatic systems

Un estudio exploratorio para testar los sedimentos atrapados por marmitas de erosión en ríos sobre roca como indicadores ambientales (NO Macizo Ibérico)

The capacity of fluvial potholes to trap sediments, together with the geochemical analysis of their stored sediments for environmental assessment, is an overlooked research topic in small bedrock rivers. The present exploratory study is focused on this issue. It was developed in a small river over rock, in the inland territory of Galicia (NW Iberian Peninsula). The study started from an analysis of the inventoried fluvial potholes to identify suitable forms for sampling, and the collection of sediment samples within them. After this, the determination of the grain texture, mineralogy and content of major and trace elements in sediments were carried out. Potholes with maximum vertical depth from 25 cm to 1 m, located in central and sidewall sectors of the bedrock channel, provided the best conditions for sediment sampling. The sediments collected from six potholes showed predominance of coarse-medium grain size and sand fraction. The rough contents of the major and even trace elements are related with the nature of the more refractory minerals of the bedrock. An adequate sampling strategy, considering grain-size fractions, show potential to use trace elements as environmental indicators.La capacidad de las marmitas fluviales para atrapar sedimentos junto con el análisis de los mismos para la evaluación ambiental es un tema de investigación poco estudiado en el caso de pequeños ríos sobre roca. El estudio exploratorio que se presenta, desarrollado en un pequeño río sobre roca del interior de Galicia (noroeste de la Península Ibérica), está centrado en esta cuestión. El estudio partió del análisis de las marmitas fluviales inventariadas con el objetivo de identificar las formas adecuadas para el muestreo y la recolección de sedimentos en su interior. A continuación, se determinó la granulometría, mineralogía y el contenido de elementos mayoritarios y de elementos traza en los sedimentos. Las marmitas fluviales con profundidad máxima vertical desde 25 cm hasta 1 m, localizadas en el sector central y lateral del canal, presentaron las mejores condiciones para el muestreo de sedimentos. En los sedimentos recolectados en seis marmitas predomina el tamaño de grano grueso-medio y la fracción arenosa. El contenido de elementos mayoritarios y traza está relacionado con la naturaleza de los minerales más refractarios de la roca. Mediante una estrategia de muestreo adecuada, teniendo en cuenta las fracciones granulométricas, muestran potencial en el uso de los elementos traza como indicadores ambientales

Growth of sculpted forms in bedrock channels (Mino River, Northwest Spain)

A total of 216 sculpted forms were registered on the granitic bedrock of the Miño River, northwest Iberian Peninsula. Analysis of in situ measurements (length, width and depth) revealed three general type-sets: incipient forms, longitudinal furrows and circular pot-holes. Maximum depth and upper radius (at the incision surface) were identified as key variables to mathematically determine the growth rate in each set. Three regression models are presented revealing that the development of the forms depends on a power law explaining their size and shape. Morphological and dimensional thresholds were established to better identify stages from incipient active growth) and inherited (stationary growth) form