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  1. Article ; Online: SÁNCHEZ COLLANTES, Sergio, El pueblo a escena. Republicanismos y tradición democrática en la Asturias del siglo XIX. Oviedo, RIDEA, 2019, 768 pp.

    Rafael Rodríguez Valdés

    Pasado y Memoria, Iss 24, p

    2022  Volume 389

    Abstract: Reseña: SÁNCHEZ COLLANTES, Sergio, El pueblo a escena. Republicanismos y tradición democrática en la Asturias del siglo XIX. Oviedo, RIDEA, 2019, 768 pp. ISBN: 978-84-949602-6-0. ...

    Abstract Reseña: SÁNCHEZ COLLANTES, Sergio, El pueblo a escena. Republicanismos y tradición democrática en la Asturias del siglo XIX. Oviedo, RIDEA, 2019, 768 pp. ISBN: 978-84-949602-6-0.
    Keywords History (General) and history of Europe ; D
    Language Catalan
    Publishing date 2022-01-01T00:00:00Z
    Publisher Universidad de Alicante
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: El legado intelectual de Rosa Luxemburg en el centenario de su muerte. Actualidad e influencia.

    Rafael Rodríguez-Prieto

    Revista Internacional de Pensamiento Político, Vol

    2020  Volume 14

    Abstract: ...

    Abstract -
    Keywords representación ; Political science ; J ; Political science (General) ; JA1-92
    Language English
    Publishing date 2020-03-01T00:00:00Z
    Publisher Universidad Pablo de Olavide
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Mecanismos de explotación en el capitalismo digital. Modelos de plusvalía en Red

    Rafael Rodríguez Prieto

    Revista Teknokultura, Vol 17, Iss

    2020  Volume 2

    Abstract: El pensamiento materialista nos ha dotado de herramientas muy útiles para el análisis de los procesos sociales. La plusvalía ha sido uno de los hallazgos más relevantes al desvelar los procedimientos de acumulación del capital y la explotación. En la ... ...

    Abstract El pensamiento materialista nos ha dotado de herramientas muy útiles para el análisis de los procesos sociales. La plusvalía ha sido uno de los hallazgos más relevantes al desvelar los procedimientos de acumulación del capital y la explotación. En la actualidad, la plusvalía se ha ido transformado y adaptando a un ‘nuevo territorio virtual’ que ofrece Internet. En este artículo se distinguen dos modos de plusvalía en Red. Se analizan tanto aquella que procede de los datos y su expresión, especialmente, en las redes sociales y aquella que se obtiene gracias a la economía colaborativa. El artículo propone no solo su identificación y crítica, sino el uso de la producción socialmente útil y, por tanto, la democratización de la producción como herramientas para contrarrestarlas.
    Keywords democracia ; economía colaborativa ; producción ; redes sociales ; Communication. Mass media ; P87-96 ; Social sciences (General) ; H1-99
    Language English
    Publishing date 2020-09-01T00:00:00Z
    Publisher Universidad Complutense de Madrid
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Nitrogen Dioxide Gas Levels in TBM Tunnel Construction with Diesel Locomotives Based on Directive 2017/164/EU

    Hector Garcia-Gonzalez / Rafael Rodriguez / Marc Bascompta

    Applied Sciences, Vol 13, Iss 10551, p

    2023  Volume 10551

    Abstract: Directive 2017/164/EU proposed a drastic reduction of nitrogen monoxide (NO) and nitrogen dioxide (NO 2 ) levels, thereby fortifying the health protection framework within the mining industry. Despite the commendable record of non-road emissions ... ...

    Abstract Directive 2017/164/EU proposed a drastic reduction of nitrogen monoxide (NO) and nitrogen dioxide (NO 2 ) levels, thereby fortifying the health protection framework within the mining industry. Despite the commendable record of non-road emissions standards (Stage IV and V) in continuing to reduce NOx emissions, concerns remain about compliance with the directive’s strict limits, particularly in demanding tunnels and mining fields. To illustrate this problem, this study undertakes a comprehensive assessment of the practical feasibility surrounding the implementation of these proposed limits in a 6.2 internal diameter tunnel-boring machine (TBM) tunnel constructed with Stage III emission locomotives. The results cast light upon the formidable challenges entailed in achieving strict compliance with the envisioned limits, with a substantial number of measurements notably surpassing these thresholds, primarily concerning NO 2 emissions from Stage III engines. To address these challenges, this study highlights the key role of moving to Stage IV-V locomotives or introducing electric locomotives to effectively reduce NOx emissions, ensure compliance with the directive, and avoid delays in tunnel construction.
    Keywords TBM ; NO 2 ; Directive 2017/164/EU ; NOx ; Stage V ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
    Subject code 340
    Language English
    Publishing date 2023-09-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Chemical-Physical Model of Gaseous Mercury Emissions from the Demolition Waste of an Abandoned Mercury Metallurgical Plant

    Rafael Rodríguez / Begoña Fernández / Beatriz Malagón / Efrén Garcia-Ordiales

    Applied Sciences, Vol 13, Iss 3149, p

    2023  Volume 3149

    Abstract: Soils from decommissioned Hg mine sites usually exhibit high levels of total mercury concentration. This work examines the behavior of mercury in the atmosphere on samples of contaminated debris of a demolished metallurgical plant present in La Soterraña ...

    Abstract Soils from decommissioned Hg mine sites usually exhibit high levels of total mercury concentration. This work examines the behavior of mercury in the atmosphere on samples of contaminated debris of a demolished metallurgical plant present in La Soterraña mine, Asturias (Spain). Previously, a strong dependence of the Hg gas concentration C max (ng/m 3 ) with the temperature T (K) was determined empirically. Hg gas concentration varied between 6500 ng/m 3 at low temperatures, 278 K (5 °C), and up to almost 60,000 ng/m 3 when the temperature reaches 303 K (30 °C). Then, two different models were proposed to explain the behavior of the mercury emitted from this source. The first model is based on Arrhenius theory. The gas flux per unit area perpendicular to the flow F (g/sm 2 ) is an exponential function of the apparent activation energy E a (J/mol): F = c f exp(-E a /RT). The values of c f = 1.04·10 7 and E a = 48.56 kJ/mol allows the model to fit well with the field measurements. The second model is based on Fick’s laws, and the flux F (g/sm 2 ) can be estimated by F = (K′ M Hg p v )/RT where K′ = 8.49·10 −7 , M Hg = 200.56 g/mol and the partial vapor pressure of gaseous mercury p v (Pa) can be estimated from the saturation vapor pressure of gaseous mercury p v = 0.00196·p s and the August’s law log(p s ) = 10.184–3210.29/T. This method is also validated with results measured in situ. Both methods are accurate enough to explain and predict emission rate G (g/s), gas flux F (g/sm 2 ) and maximum Hg gas concentration over the debris C max (ng/m 3 ) as a function the temperature T (K).
    Keywords mercury ; mobility ; debris ; modelling ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
    Subject code 333
    Language English
    Publishing date 2023-02-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Screw sense excess and reversals of helical polymers in solution

    Francisco Rey-Tarrío / Rafael Rodríguez / Emilio Quiñoá / Félix Freire

    Nature Communications, Vol 14, Iss 1, Pp 1-

    2023  Volume 9

    Abstract: Reversals are structural motifs found in helical polymers that are difficult to determine experimentally. Here, the authors turn to photochemical electrocyclization as a tool to establish their presence and estimate excess screw sense in solution. ...

    Abstract Reversals are structural motifs found in helical polymers that are difficult to determine experimentally. Here, the authors turn to photochemical electrocyclization as a tool to establish their presence and estimate excess screw sense in solution.
    Keywords Science ; Q
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Presentación del monográfico

    Rafael Rodríguez Prieto / Virginia Gutiérrez Barbarrusa / Fernando Martínez Cabezudo

    Revista Internacional de Pensamiento Político, Vol 18, Iss

    2023  Volume 18

    Abstract: ...

    Abstract ---
    Keywords presentación ; Political science ; J ; Political science (General) ; JA1-92
    Language English
    Publishing date 2023-12-01T00:00:00Z
    Publisher Universidad Pablo de Olavide
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Empirical Model of Gaseous Mercury Emissions for the Analysis of Working Conditions in Outdoor Highly Contaminated Sites

    Rafael Rodríguez / Hector Garcia-Gonzalez / Efrén García-Ordiales

    Sustainability, Vol 14, Iss 13951, p

    2022  Volume 13951

    Abstract: The project SUBproducts4LIFE is a LIFE-funded research project that aims to demonstrate innovative circular economy concepts by repurposing industrial subproducts/waste (coal ash and gypsum from coal power plants, blast furnace slag, and steelmaking slag ...

    Abstract The project SUBproducts4LIFE is a LIFE-funded research project that aims to demonstrate innovative circular economy concepts by repurposing industrial subproducts/waste (coal ash and gypsum from coal power plants, blast furnace slag, and steelmaking slag from steel factories) for the remediation of contaminated soils and brownfield areas associated with Hg mining on a large scale. Within the project, one of the objectives is related to worker safety by developing protocols and elaborating a guide of good practices to work under in these highly contaminated areas. The present research aims to assess the working conditions in an abandoned mine facility in terms of gaseous mercury in the environment, evaluating the main areas of the mine to ensure the health and safety of all workers and visitors. The study developed an empirical model for estimating the gaseous mercury concentration at any temperature with the target of scheduling the work to avoid occupational hazards. The research concluded that working without restrictions for temperatures under 15 °C in all the mine’s facilities is possible.
    Keywords mercury ; abandoned mines ; airborne ; spoil tip ; risk management ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Subject code 670
    Language English
    Publishing date 2022-10-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Vibration Analysis and Empirical Law Definition for Different Equipment in a Civil Construction

    Rafael Rodríguez / Marc Bascompta

    Applied Sciences, Vol 10, Iss 4689, p

    2020  Volume 4689

    Abstract: The potential affection of any construction, and especially historical sites, is of great concern for their long-term maintenance and stability. This study has determined the vibration behavior in poor-quality rock mass conditions generated by some of ... ...

    Abstract The potential affection of any construction, and especially historical sites, is of great concern for their long-term maintenance and stability. This study has determined the vibration behavior in poor-quality rock mass conditions generated by some of the most typical equipment used in construction: excavator, ripper, ripper vibrator, hydraulic hammer, bulldozer and vibrating roller. Several empirical expressions are proposed to know the maximum velocity at different distances for each type of equipment, taking into account the intensity of the vibration generated and its pattern. A general equation has also been defined to determine the vibration propagation along the distance at a construction site, based on the impact generated by all the possible vibration elements, exogenous and endogenous, including machinery working individually or in any possible combination and number. On the other hand, the maximum allowable velocity in the case study is also discussed and compared to international standards, stating some recommendations. It would be very important to have a clear legislation in this regard due to the high density of sensitive constructions in Spain and the economic implications of applying too high or too low standard values.
    Keywords empirical analysis ; mechanical excavation ; ground vibration ; historical construction ; wave propagation ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
    Subject code 690
    Language English
    Publishing date 2020-07-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Presentación

    Rafael Rodríguez Prieto

    Revista Internacional de Pensamiento Político, Vol

    2018  Volume 10

    Abstract: ... ...

    Abstract Presentación
    Keywords Political science ; J ; Political science (General) ; JA1-92
    Language English
    Publishing date 2018-10-01T00:00:00Z
    Publisher Universidad Pablo de Olavide
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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