¿Cómo definen los profesionales de enfermería sus competencias de excelencia?

El objetivo fundamental del presente trabajo es el de describir, analizar y discutir los resultados de un procedimiento estandarizado para determinar las competencias que deben tener los profesionales de enfermería. Se pretende conocer, en opinión de los enfermeros/as que están desarrollando el puesto, cuales son los comportamientos más relevantes y prioritarios para llevar a cabo de una manera excelente su trabajo en el ámbito hospitalario. La implantación de estas herramientas cuenta con el apoyo de la alta dirección y establece mecanismos de participación e implicación de los profesionales para tener un marco adecuado de relaciones laborales que permitan optimizar las evaluaciones y decisiones respecto al personal.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Limitacions i reptes de la implicació ciutadana en la planificació de la ciutat. El cas de Va Cabanyal!

Amb aquest article es pretén generar un espai de reflexió sobre les limitacions i els reptes presents en la implicació de la ciutadania en els processos de planificació i transformació urbana a través de l’estudi de cas del barri del Cabanyal a València. Després de divuit anys amenaçat per la prolongació de l’avinguda Blasco Ibáñez, el nou govern local va promoure un procés participatiu durant l’últim trimestre del 2015 per a la redacció d’una Estratègia de Desenvolupament Urbà Sostenible i Integrat (EDUSI) per al barri, amb l’objectiu d’obtenir fons europeus per a regenerar la zona. Un conflicte urbà tan estès en el temps i amb tanta complexitat de capes i discursos com el del Cabanyal permet analitzar la participació social des d’un marc conflictualista que és difícil obviar. A través de la implicació en aquest procés d’investigació de l’acció participativa, s’ha aprofundit en la transformació del conflicte, en les potencialitats d’un enfocament holístic i dialèctic, així com en les limitacions imposades, entre altres, per un marc administratiu molt rígid

Oxidoperoxidomolybdenum(VI) complexes with acylpyrazolonate ligands: synthesis, structure and catalytic properties

Oxidoperoxido–molybdenum(VI) complexes containing acylpyrazolonate ligands were obtained by reaction of [Mo(O)(O)2(H2O)n] with the corresponding acylpyrazolone compounds HQR. Complexes Ph4P[Mo(O)(O2)2(QR)] (R = neopentyl, 1; perfluoroethyl, 2; hexyl, 3; phenyl, 4; naphthyl, 5; methyl, 6; cyclohexyl, 7; ethylcyclopentyl, 8) were obtained if the reaction was carried out with one equivalent of HQR in the presence of Ph4PCl. Alternatively, neutral complexes [Mo(O)(O2)(QR)2] (R = neopentyl, 9; hexyl, 10; cyclohexyl, 11) were formed when two equivalents of HQR were used in the reaction. These complexes were isolated in good yields as yellow or yellow-orange crystalline solids and were spectroscopically (IR, 1H, 13C{1H} and 31P{1H} NMR), theoretically (DFT) and structurally characterised (X-ray for 1, 2, 9 and 10). Compounds 1 and 9 were selected to investigate their catalytic behaviour in epoxidation of selected alkenes and oxidation of selected sulphides, while 10 and 11 were tested as catalyst precursors in the deoxygenation of selected epoxide substrates to alkenes, using PPh3 as the oxygen-acceptor. Complexes Ph4P[Mo(O)(O2)2(QR)] were shown to be poor catalyst precursors in oxidation reactions, while the activity of [Mo(O)(O2)(QR)2] species is good in all the studied reactions and comparable to related oxidoperoxido–molybdenum(VI) complexes. Complex [Mo(O)2(QC6)2], 12, was obtained by treatment of 10 with one equivalent of PPh3, demonstrating that the first step in the epoxide deoxygenation mechanism was the oxygen atom transfer toward the phosphane.Junta de Andalucía (Proyecto de Excelencia, FQM-7079)Universidad de Sevilla (VI Plan Propio

Experimental validation of a quasi-two-dimensional radial turbine model

[EN] This article presents the experimental validation of a quasi-two-dimensional radial turbine model able to be used in turbocharged reciprocating internal combustion engine simulations. A passenger car variable-geometry turbine has been tested under steady and pulsating flow conditions, instrumented with multiple pressure probes, temperature sensors and mass flow sensors. Using the data obtained, a pressure decomposition has been performed. The pressure at the turbine inlet and outlet has been split into forward and backward travelling waves, employing the reflected and transmitted waves to verify the goodness of the model. The experimental results have been used to compare the quasi-two-dimensional radial turbine model as well as a classic one-dimensional model. The quasi-two-dimensional code presents a good degree of correlation with the experimental results, providing better results than the one-dimensional approach, especially when studying the high-frequency spectrum.Pablo Soler is partially supported through contract FPI-2017-S2-1428 of Programa de Apoyo para la Investigación y Desarrollo (PAID) of Universitat Politècnica de València. The authors of this paper wish to thank M.A. Ortiz and V. Ucedo for their invaluable work during the experimental setup and the campaign.Galindo, J.; Arnau Martínez, FJ.; García-Cuevas González, LM.; Soler-Blanco, P. (2018). Experimental validation of a quasi-two-dimensional radial turbine model. International Journal of Engine Research. https://doi.org/10.1177/1468087418788502SKesgin, U. (2005). Effect of turbocharging system on the performance of a natural gas engine. Energy Conversion and Management, 46(1), 11-32. doi:10.1016/j.enconman.2004.02.006Tang, H., Pennycott, A., Akehurst, S., & Brace, C. J. (2014). A review of the application of variable geometry turbines to the downsized gasoline engine. International Journal of Engine Research, 16(6), 810-825. doi:10.1177/1468087414552289Pesiridis, A. (2012). The application of active control for turbocharger turbines. International Journal of Engine Research, 13(4), 385-398. doi:10.1177/1468087411435205Romagnoli, A., & Martinez-Botas, R. (2011). Performance prediction of a nozzled and nozzleless mixed-flow turbine in steady conditions. International Journal of Mechanical Sciences, 53(8), 557-574. doi:10.1016/j.ijmecsci.2011.05.003Payri, F., Serrano, J. R., Fajardo, P., Reyes-Belmonte, M. A., & Gozalbo-Belles, R. (2012). A physically based methodology to extrapolate performance maps of radial turbines. Energy Conversion and Management, 55, 149-163. doi:10.1016/j.enconman.2011.11.003Costall, A. W., McDavid, R. M., Martinez-Botas, R. F., & Baines, N. C. (2010). Pulse Performance Modeling of a Twin Entry Turbocharger Turbine Under Full and Unequal Admission. Journal of Turbomachinery, 133(2). doi:10.1115/1.4000566De Bellis, V., & Marelli, S. (2015). One-dimensional simulations and experimental analysis of a wastegated turbine for automotive engines under unsteady flow conditions. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 229(13), 1801-1816. doi:10.1177/0954407015571672Serrano, J. R., Olmeda, P., Páez, A., & Vidal, F. (2010). An experimental procedure to determine heat transfer properties of turbochargers. Measurement Science and Technology, 21(3), 035109. doi:10.1088/0957-0233/21/3/035109Burke, R. D., Copeland, C. D., Duda, T., & Rayes-Belmote, M. A. (2016). Lumped Capacitance and Three-Dimensional Computational Fluid Dynamics Conjugate Heat Transfer Modeling of an Automotive Turbocharger. Journal of Engineering for Gas Turbines and Power, 138(9). doi:10.1115/1.4032663Olmeda, P., Dolz, V., Arnau, F. J., & Reyes-Belmonte, M. A. (2013). Determination of heat flows inside turbochargers by means of a one dimensional lumped model. Mathematical and Computer Modelling, 57(7-8), 1847-1852. doi:10.1016/j.mcm.2011.11.078Serrano, J., Olmeda, P., Arnau, F., Reyes-Belmonte, M., & Lefebvre, A. (2013). Importance of Heat Transfer Phenomena in Small Turbochargers for Passenger Car Applications. SAE International Journal of Engines, 6(2), 716-728. doi:10.4271/2013-01-0576Aghaali, H., Ångström, H.-E., & Serrano, J. R. (2014). Evaluation of different heat transfer conditions on an automotive turbocharger. International Journal of Engine Research, 16(2), 137-151. doi:10.1177/1468087414524755Serrano, J. R., Olmeda, P., Tiseira, A., García-Cuevas, L. M., & Lefebvre, A. (2013). Theoretical and experimental study of mechanical losses in automotive turbochargers. Energy, 55, 888-898. doi:10.1016/j.energy.2013.04.042Serrano, J. R., Olmeda, P., Tiseira, A., García-Cuevas, L. M., & Lefebvre, A. (2013). Importance of Mechanical Losses Modeling in the Performance Prediction of Radial Turbochargers under Pulsating Flow Conditions. SAE International Journal of Engines, 6(2), 729-738. doi:10.4271/2013-01-0577Galindo, J., Fajardo, P., Navarro, R., & García-Cuevas, L. M. (2013). Characterization of a radial turbocharger turbine in pulsating flow by means of CFD and its application to engine modeling. Applied Energy, 103, 116-127. doi:10.1016/j.apenergy.2012.09.013Hakeem, I., Su, C.-C., Costall, A., & Martinez-Botas, R. F. (2007). Effect of volute geometry on the steady and unsteady performance of mixed-flow turbines. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 221(4), 535-549. doi:10.1243/09576509jpe314Hu X. An advanced turbocharger model for the internal combustion engine. PhD Thesis, Purdue University, West Lafayette, IN, 2000.King A. A turbocharger unsteady performance model for the GT-power internal combustion engine simulation. PhD Thesis, Purdue University, West Lafayette, IN, 2000.Rajoo, S., & Martinez-Botas, R. (2008). Variable Geometry Mixed Flow Turbine for Turbochargers: An Experimental Study. International Journal of Fluid Machinery and Systems, 1(1), 155-168. doi:10.5293/ijfms.2008.1.1.155Serrano, J. R., Tiseira, A., García-Cuevas, L. M., Inhestern, L. B., & Tartoussi, H. (2017). Radial turbine performance measurement under extreme off-design conditions. Energy, 125, 72-84. doi:10.1016/j.energy.2017.02.118Torregrosa, A. J., Broatch, A., Navarro, R., & García-Tíscar, J. (2014). Acoustic characterization of automotive turbocompressors. International Journal of Engine Research, 16(1), 31-37. doi:10.1177/1468087414562866Leufvén, O., & Eriksson, L. (2014). Measurement, analysis and modeling of centrifugal compressor flow for low pressure ratios. International Journal of Engine Research, 17(2), 153-168. doi:10.1177/1468087414562456Galindo, J., Tiseira, A., Navarro, R., Tarí, D., & Meano, C. M. (2017). Effect of the inlet geometry on performance, surge margin and noise emission of an automotive turbocharger compressor. Applied Thermal Engineering, 110, 875-882. doi:10.1016/j.applthermaleng.2016.08.099Galindo, J., Tiseira, A., Fajardo, P., & García-Cuevas, L. M. (2014). Development and validation of a radial variable geometry turbine model for transient pulsating flow applications. Energy Conversion and Management, 85, 190-203. doi:10.1016/j.enconman.2014.05.072Ding, Z., Zhuge, W., Zhang, Y., Chen, H., Martinez-Botas, R., & Yang, M. (2017). A one-dimensional unsteady performance model for turbocharger turbines. Energy, 132, 341-355. doi:10.1016/j.energy.2017.04.154Toro, E. F., Spruce, M., & Speares, W. (1994). Restoration of the contact surface in the HLL-Riemann solver. Shock Waves, 4(1), 25-34. doi:10.1007/bf01414629Van Leer, B. (1974). Towards the ultimate conservative difference scheme. II. Monotonicity and conservation combined in a second-order scheme. Journal of Computational Physics, 14(4), 361-370. doi:10.1016/0021-9991(74)90019-9Courant, R., Friedrichs, K., & Lewy, H. (1928). �ber die partiellen Differenzengleichungen der mathematischen Physik. Mathematische Annalen, 100(1), 32-74. doi:10.1007/bf01448839Chiong, M. S., Rajoo, S., Romagnoli, A., Costall, A. W., & Martinez-Botas, R. F. (2015). Non-adiabatic pressure loss boundary condition for modelling turbocharger turbine pulsating flow. Energy Conversion and Management, 93, 267-281. doi:10.1016/j.enconman.2014.12.058Serrano, J. R., Arnau, F. J., García-Cuevas, L. M., Dombrovsky, A., & Tartoussi, H. (2016). Development and validation of a radial turbine efficiency and mass flow model at design and off-design conditions. Energy Conversion and Management, 128, 281-293. doi:10.1016/j.enconman.2016.09.032Serrano, J. R., Arnau, F. J., Dolz, V., Tiseira, A., & Cervelló, C. (2008). A model of turbocharger radial turbines appropriate to be used in zero- and one-dimensional gas dynamics codes for internal combustion engines modelling. Energy Conversion and Management, 49(12), 3729-3745. doi:10.1016/j.enconman.2008.06.031Piñero, G., Vergara, L., Desantes, J. M., & Broatch, A. (2000). Estimation of velocity fluctuation in internal combustion engine exhaust systems through beamforming techniques. Measurement Science and Technology, 11(11), 1585-1595. doi:10.1088/0957-0233/11/11/307Harris, F. J. (1978). On the use of windows for harmonic analysis with the discrete Fourier transform. Proceedings of the IEEE, 66(1), 51-83. doi:10.1109/proc.1978.1083

Comparison between microcomputed tomography and cone‐beam computed tomography radiologic bone to assess atrophic posterior maxilla density and microarchitecture

Purpose The aim of this study was to analyze the relationship between bone density obtained by cone‐beam computed tomography ( CBCT ) and morphometric parameters of bone analyzed by microcomputed tomography (μ‐ CT ). Material and methods An overall of 32 subjects ≤8 mm of bone height were included in the study. One site per patient was randomly selected to obtain bone core. Totally, 27 biopsies were available for μ‐ CT analysis. In addition, CBCT was taken after positioning a previously fabricated acrylic resin template with a 2‐mm‐diameter metal rod at the randomly selected implant site to study radiographic bone density ( RBD ). The relationship between μ‐ CT and CBCT quantitative variable and RBD was analyzed using Spearman correlation. Results Positive correlations between BV / TV ( r  = 0.769, P  < 0.001), BS / TV ( r  = 0.563, P  = 0.002), T b. T h ( r  = 0.491, P  = 0.009), T b. N ( r  = 0.518, P  = 0.005) and v BMD ( r  = 0.699, P  < 0.001) with RBD were identified. On the contrary, BS / BV ( r  = −0.509, P  = 0.006), T b. S p ( r  = −0.539, P  = 0.003) and T b. P f ( r  = −0.636, P  < 0.001) were negatively correlated with RBD . Moreover, SMI ( r  = −0.380, P  = 0.050) and DA (−0.245, P  = 0.217) were negatively correlated but not statistically significant. Conclusion This study demonstrated the correlation between radiographic bone density ( RBD ) and bone density assessed by μ‐ CT . Therefore, our data supported the use of CBCT as pre‐operative tool for implant treatment planning because it is shown to be reliable to assess atrophic posterior maxilla density and microarchitecture.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/106929/1/clr12133.pd

Congreso Internacional sobre permanencia y transformación

Varea Oro, A.; Herrero García, LF.; González Galindo, I. (2012). Congreso Internacional sobre permanencia y transformación. Editorial Universitat Politècnica de València. http://hdl.handle.net/10251/14652Archivo delegad

Palaeostress and geotectonic interpretation of the Alpine Cycle onset in the Sierra del Guadarrama (eastern Iberian Central System), based on evidence from episyenites

Several episodes of hydrothermal activity related to periods of fracturing and/or reactivation of previous structures took place from 300 to - at least - 100 Ma, in the Sierra del Guadarrama, which is part of the crystalline axis of the Iberian Hercynian Fold Belt (Central-Iberian Zone). One of these episodes led to the formation of episyenites, which are de-quartzified and alkalinized granites. Episyenite formation took place on a regional scale and in a short period (approx. at 277 Ma). The episyenites were formed by the action of fluids at temperatures between 350°C and 650°C, at depths of about 6.5 km, and in microfractured dilatancy zones developed under a regional extensional regime. These zones are crosscut by normal faults, developed during the progressive deformation process accompanying the formation of the episyenites. The calculated regional palaeostress tensor has ~r I close to vertical and σ3 between NI0-20E and an average value of the stress ratio (Ф) of 0.19 [Ф = (σ2 - σ3)/(σ1 - σ3)]. Because σ1 is close to vertical the stress tensor is compatible with an extensional deformation field. The analysis also shows that most of the faults that slip under this stress field have an average coefficient of friction of 0.8. This extensional regime was probably accompanied by a regional thermal anomaly, as suggested by the high temperature of the fluids involved, which are amagmatic. This thermo-tectonic episode is interpreted as representative of the generalized extensional regime corresponding to the onset of the Alpine Cycle. The episode was preceded by a wrench-faulting event, equivalent to the Late Variscan event of Arthaud and Matte (1977), for which an age of - at least - 300-290 Ma is indicated by recent radiometric data. In its turn, this event was preceded by the regional extensional gravitative collapse of the Hercynian orogen. A correlation between evidence from the cover (stratigraphy and volcanism) and evidence from the basement (hydrothermal alterations, dyke injection episodes and granitic magmatism) is attempted on the basis of new available radiometric data

Impacts of a hydroinfiltrator rainwater harvesting system on soil moisture regime and groundwater distribution for olive groves in semi-arid Mediterranean regions

Dry periods in semi-arid regions constitute one of the greatest hazardous features that agriculture faces. This study investigates the effects of using a new device called ‘Hydroinfiltrator Rainwater Harvesting System (HRHS) on the water balance of soils. It was designed for arid and semi-arid zones affected by long periods of drought punctuated by heavy rainstorms. The new hydroinfiltrator consists of a net-like shell filled mainly with biochar. It is cylindrical in shape, is placed vertically and is half-buried in the soil around the crop tree to facilitate the infiltration of rainwater, irrigation or runoff water deep into the soil. The experimental plot is located in Baena (Córdoba, southern Spain) in an olive grove where the hydroinfiltrator was installed in 90 olive trees while 10 were left as a control group. In the xeric climate (bordering on arid), typical of the region, soils without a hydroinfiltrator have had a low infiltration rate, which reduces the effectiveness of precipitation and significantly increases the risk of water erosion. The effects of infiltration assisted by the device were analysed by simulating a torrential rain in which 600 L of water were passed through the hydroinfiltrator on an olive tree which had been installed 3 years previously. Geophysical methods (electrical resistivity tomography, ERT), direct analyses of soil samples, both in situ and in the laboratory, and theoretical flow models indicated a very significant increase in soil moisture (which nearly tripled in respect to the control group) because water was absorbed into the soil quickly, preventing runoff and water erosion. The soil moisture at 20 cm depth was 2.97 times higher with the HRHS than in the control plots. In addition, olive production increased by 211% and was higher in fat yield by 177%. Moreover, the resistivity profiles, taken by ERT showed that the water that entered the soil accumulated in the root zone of the olive tree, encouraged by the preferential pathways created by the roots and away from the surface, which prevented rapid evaporation during the high temperatures of spring and summer. Here we show for the first time that the use of the hydroinfiltrator rainwater harvesting system represents a significant improvement in the use of scarce water resources caused by climate change, providing agronomic and environmental benefits for rainfed, Mediterranean agricultural systems

Cueva del sol, a solar marker in the sierra de la plata (Tarifa, Cádiz)

En el ámbito geográfico que nos ocupa, entornos de la Laguna de la Janda y Campo de Gibraltar, existen unos trescientos abrigos con arte rupestre escasamente estudiados. En veintidós de ellos está representada la figura soliforme en sus paredes rocosas. La denominada Cueva del Sol es uno de los abrigos que forman parte de este conjunto. Sus especiales características, tanto geográficas como iconográficas, y los reveladores resultados de observaciones astronómicas apuntan a la existencia de un marcador solar del solsticio de invierno, y convierten a esta cavidad en una de las más excepcionales del conjunto y, tal vez, de la península ibérica. Los datos obtenidos hacen que este abrigo pueda llevarnos a determinar algunos aspectos concretos sobre los cultos aso - ciados al comportamiento solar y su función como regulador de las actividades productivas y, por ende, acercarnos a la cosmovisión de los hacedores de estas pinturas. Para ello es condición sine qua non un análisis individual y profundo, realizado a partir de un enfoque teórico-metodológico basado sobre todo en la Arqueoastronomía, la Arqueología del Paisaje, la Semiótica o la Etnografía, entre otras disciplinas.In the geographical area under study, surround - ings of the Laguna de la Janda and the Campo de Gibraltar , there are over three hundred rock-shelters with cave paint - ings, which have barely been studied. The sun-shaped figure is depicted on the rocky walls of twenty-two of these rock- shelters. The Cueva del Sol is one of the rock-shelters that forms part of this set. Due to both its special geographical and iconographic characteristics as well as the revealing results of astronomic observation that confirmed the existence of a winter solstice marker (sun dagger), this rock-shelter is one of the most exceptional of the set and maybe of the ibe - rian peninsula. The characteristics of this rock-shelter enable us to determine some specific aspects on worship associated to the behaviour of the sun and its role in regulating produc - tion activities thus bringing us closer to the worldview of the creators of these paintings. For this purpose, a detailed and individual analysis from a theoretical and methodological ap - proach, mainly based on Archaeoastronomy, Landscape Archaeology, Semiotics and Ethnography, amongst other disci - plines, is a conditio sine qua non