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El visor GNSS: una herramienta para monitorizar las redes RTK de la Península Ibérica
(eGeoMapping, 2018) Morillo Barragán, Juan Ramón; Guerrero Ramírez, Javier; Molina Samino, Rubén; Pulido Moreno, Ángel Felipe; Universidad de Extremadura. Departamento de Expresión Gráfica
El visor GNSS (http://visorgnss.es) es una herramienta para monitorizar estaciones de referencia GNSS en un mapa web dinámico, ya sea en tiempo real o bien en gráficos históricos mensuales.
Esta herramienta desempeña un rol similar al de un usuario que intenta conectarse a una solución de una determinada red RTK. En primer lugar, solicita la conexión NTRIP con las credenciales de acceso pertinentes (usuario y clave), para obtener después los correspondientes mensajes RTCM de la solución requerida.
Tanto en la versión web como aplicación para Android, se analizan cada 5 minutos 354 estaciones de referencia GNSS públicas de 18 redes de la Península Ibérica, que una vez decodificadas proporcionan información a un mapa dinámico con 5 estados posibles de operatividad, así como el número de satélites observados en las diferentes constelaciones y otros datos relativos a su propiedad. Por otra parte, en los gráficos de cortes se pueden consultar el estado de las estaciones de referencia de cada red en el último mes, y finalmente, se puede configurar un servicio de alertas que le reportará un correo con la caída y recuperación de la alerta elegida después de 15 minutos de persistir en la situación de corte o recuperación.
Evaluación de la calidad de un Modelo Digital de Elevaciones: número de puntos de control
(eGeoMapping, 2002) Morillo Barragán, Juan Ramón; Pozo Baselga, Francisco Javier del; Méndez Manzano, Raúl; Universidad de Extremadura. Departamento de Expresión Gráfica
El Modelo Digital de Elevaciones como definición esquemática del relieve del terreno, tiende a ser una representación fiel en tanto los algoritmos interpolantes consigan estimaciones correctas. La prolongación del MDE se extiende a toda una serie de modelos derivados que pueden ser un buen soporte de otras variables biofísicas, que también pueden verse afectadas por el error. El error y la fiabilidad del MDE con distintos algoritmos de interpolación, y su contraste en función del número y la calidad de los puntos de control es el objetivo de esta comunicación.
Think globally, act locally: A glocal approach based on the regional report cards from Spain in the AHKGA Global Matrix 4.0
(Wiley, 2025) Brazo Sayavera, Francisco Javier; Adsuar Sala, José Carmelo; Albisua Kaperotxipi, Neritzel; Aznar, Susana; López Gil, José Francisco; Muñoz Bermejo, Laura; Pérez Gómez, Jorge; Román Viñas, Blanca; Reilly, John J.; Universidad de Extremadura. Departamento de Didáctica de la Expresión Musical, Plástica y Corporal; Universidad Pablo de Olavide
; Universidad de Extremadura. Grupo de investigación Promoting a Healthy Society Research Group (PHeSO); Universidade de Lisboa. Portugal
; Universidad de Mondragón (Mondragon Unibertsitatea - Errektoretza); Universidad de Castilla-La Mancha
; Universidad Espíritu Santo. Ecuador
; Universidad de Los Lagos. Chile; Universidad de Extremadura. Grupo de Investigación Social Impact and Innovation In Health (InHEALTH); Universidad de Extremadura. Grupo de Investigación Health, Economy, Motricity and Education (HEME); Universitat Ramon Llull
; Universitat de Girona
; Instituto de Salud Carlos III, CIBEROBN - Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición; University of Strathclyde. UK
Background: The Global Matrix initiative aims to create a world map of indicators related to physical activity to provide the most up-to-date information for decision-making. In the latest edition, three regions from Spain joined the initiative, based on a ‘glocal’ approach. The objectives of this study were (i) to compare the grades of the Report Card and the public policies between and within the Spanish regions and with the national Report Card; (ii) to evaluate sex differences; and (iii) to identify differences in the policy priorities between regions and the national policy.
Methods: The three regions studied and the country followed a harmonized process to develop a Report Card. The common physical activity indicators included in the Global Matrix 4.0 were analysed. The Government indicator was analysed using an approved methodology. Additionally, sex-specific information was provided. Report Card leaders provided the main priorities to improve the indicators included in the analysis, and a comparison by indicator was performed.
Results: Regional differences were observed in the grades assigned to the behavioural indicators included; however, the average grades were similar, with Extremadura showing the lowest average. Grades for the sources of influence indicators differed in the analysed Report Cards.
Conclusion: Regional Report Cards analysed in Spain differ among themselves, with similar average grades in the behavioural indicators. These identified regional differences could lead to a more ‘glocal’ approach that will allow for more efficient action at the local level.
Optimization of extraction conditions to improve phenolic content and in vitro antioxidant activity in craft brewers' spent grain using Response Surface Methodology (RSM)
(MDPI, 2020) Andrés Nieto, Ana Isabel; Petrón Testón, María Jesús; López Valenzuela, Ana María; Timón Andrada, María Luisa; Universidad de Extremadura. Departamento de Producción Animal y Ciencias de los Alimentos; CICYTEX (Centro de Investigaciones Científicas y Tecnológicas de Extremadura)
Extraction temperature, extraction time and liquid (water) to solid ratio were optimized in order to extract antioxidant phenolic compounds from brewers’ spent grain (BSG). The extracts were analysed for their total phenol content (TPC) and antioxidant activity was measured using three different methods: 2,2-diphenyl-2-picrylhydrazyl (DPPH) free radical, 2,2´-azino-bis (3-ethylbenothiazoline-6-sulphonic acid) (ABTS), and reducing power (RP) assays. All the parameters except extraction time promoted different efficiencies for the extraction of antioxidant phenolic compounds. TPC extraction was higher at lower temperatures and lower liquid/solid ratios up to a certain point. In this sense, a decrease in TPC with increasing liquid/solid ratios took place until a 16:1 ratio and a plateau was reached beyond that ratio. The highest DPPH activity was reported for 30–35 °C and 60–90 min extraction and 60–90 min extraction with a 25 mL/g ratio. ABTS values increased as the liquid to solid ratio decreased, being positively correlated with TPC (R = 0.788; p < 0.01). The highest RP was achieved at 30–33 °C extraction temperature and 10–14 mg/mL v/w ratio and at 116–120 min extraction and 16–17 mg/mL ratio. Gallic acid accounted for the majority of the phenolic compounds found, followed by hydroxyphenylacetic acid, epicatechin, and protocatechuic acid. Sinapic, 4-hydroxy benzoic, and syringic acids were also found in lower quantities. Coumaric, vanillic, ferulic, and caffeic acids were present in very small amounts. All the extracts contained phenolics and showed in vitro antioxidant activity, but the extracts obtained by using 30 °C, 121.9 min, and 10 mL/g liquid/solid ratio exhibited the highest content in TPC and antioxidant potential. The aqueous extraction of a potentially bioactive extract from BSG was demonstrated to be an efficient and simple method to recover these value-added compounds.
Trace fossils from the Upper Member of the Duolbagáisá Formation (Cambrian Series 2–Miaolingian), northern Norway, with the first diverse Cambrian record of Halimedides
(Norsk Geologisk Forening, 2022) Novis, Linn K.; Jensen, Rolf Sören; Hoyberget, Magne; Högström, Anette E.S.; Artic University. Noruega; Universidad de Extremadura. Departamento de Biología Vegetal, Ecología y Ciencias de la Tierra
New information is provided on trace fossils from the Cambrian Series 2 to Miaolingian in the Upper Member of the Duolbagáisá Formation of northern Norway. This includes the first rich Cambrian material of Halimedides, a trace fossil with more or less regularly spaced swellings of different shapes connected by a median string. It is known principally from Mesozoic and younger deep-sea deposits, with a scarce Paleozoic record, making this one of the oldest occurrences of this ichnogenus. Other trace fossils occurring with Halimedides include the rare Bergaueria sucta, Palaeophycus imbricatus and Cruziana tenella. Psammichnites gigas and Syringomorpha nilssoni are documented photographically for the first time from this unit. The trace fossil association shows general similarity with that of the slightly older Mickwitzia Sandstone Member of southern Sweden and suggests a broad distribution of late early Cambrian trace-fossil producers across Baltica.