Analysis of the internal load in training women’s futsal of first national division

El objetivo de este estudio es analizar la frecuencia cardiaca (FC) y la percepción subjetiva del esfuerzo (RPE) en los entrenamientos de fútbol sala en jugadoras (25.42±4.42 años, 166.57±7.14 cm, 56.50±4.95 kg y 22.23±0.97 IMC) de un equipo de primera división de la liga nacional española. Se registraron, mediante monitores de ritmo cardiaco y la escala de Foster, ocho sesiones de entrenamiento de tipo técnico-táctico, físico y partidos modificados, distribuidas durante la mitad de la temporada. Los resultados de la FC máxima y media obtenida son 174.03±4.15 y 128.29±0.81 ppm en sesiones técnico-tácticas, 179.75±2.05 y 132±2.12 ppm en sesiones físicas, 180.99±1.06 y 133.63±5.52 ppm en partidos modificados, respectivamente. Habiendo diferencias significativas en los resultados de la FC máxima entre las sesiones técnico-tácticas y los partidos modificados (p=0.03) y entre la sesiones físicas y las técnico-tácticas (p=0.04). En cuanto a los resultados de la carga de entrenamiento y la RPE en las sesiones técnico-tácticas son 381.22±16.42 y 6.21±0.12 rpe, en las sesiones físicas 533.25±5.59 y 7.90±0.0 rpe, y en los partidos modificados 531.18±4.21 y 7.97±0.22 rpe, respectivamente. Encontrando diferencias significativas entre los resultados de la RPE y la magnitud de la carga de entrenamiento de las sesiones técnico-tácticas y los partidos modificados (p=0.00) y entre la sesiones físicas y las técnico-tácticas (p=0.00). Estos resultados muestran que la sesión de partido modificado obtiene unos valores de frecuencia cardiaca y de percepción subjetiva del esfuerzo mayor que las sesiones técnico-tácticas y las de trabajo físico.The aim of this study is to analyze the heart rate (HR) and the rating perception of effort (RPE) in training women futsal players (age 25.42±4.42 years, height 166.57±7.14 cm, body mass 56.50±4.95 kg and 22.23±0.97 BMI) from the first division team of the Spanish league. They were recorded by heart rate monitors and Foster scale, eight training sessions (technical-tactical, physiological and modified games). The results of maximum HR and average HR obtained are 174.03 ± 4.15 and 128.29 ± 0.81 ppm in technical-tactical sessions, 179.75 ± 2.05 and 2.12 ± 132 ppm in physiological sessions, and 180.99 ± 1.06 and 133.63 ± 5.52 ppm in modified games respectively. Having significant differences in the results of maximum heart rate between technical-tactical sessions and modified games (p = 0.03) and between the physiological and technical-tactical sessions (p = 0.04). As for the results of the training load and the RPE: are 381.22 ± 16.42 and 6.21 ± 0.12 in technical-tactical sessions; 533.25 ± 5.59 and 7.90 ± 0.0 in physiological sessions, and 531.18 ± 4.21 and 7.97 ± 0.22 in modified games. Finding significant differences between the results of the RPE and the magnitude of the training load technical-tactical sessions and modified games (p = 0.00) and between the physiological and technical-tactical sessions (p = 0.00). These results show that the modified games session obtains values of heart rate and the rating perception of effort greater than the technical-tactical and physiological work sessions

Analysis of different teaching methods in young soccer players

La utilización de un método de enseñanza u otro es un aspecto importante en la formación de jóvenes jugadores de fútbol. El objetivo del presente estudio ha sido identificar y analizar los métodos de enseñanza que utilizan los entrenadores en el fútbol de iniciación. Para ello, se analizaron a 36 entrenadores de fútbol 8 de categorías benjamín y alevín del campeonato de la Comunidad Valenciana (liga 2013-2014), mediante una encuesta diseñada y validada. Los resultados obtenidos, muestran que el método de enseñanza más utilizado es el método global, siendo la combinación de varios métodos de enseñanza la forma más idónea para enseñar el fútbol.The use of a teaching method or another is an important aspect in training of young soccer players. The aim of study was to identify and analyze the teaching methods coaches use in young soccer players. Analysis of 36 soccer coaches of 8 soccer categories 9-10 years and 11-12 years of Valencia Community Championship (League 2013-2014), using a validated questionnaire. The results indicate that the teaching method most often used by coaches is the global method and that the combination of several teaching methods is the most appropriate way to teach football

High-throughput wide dynamic range procedure for the simultaneous quantification of nicotine and cotinine in multiple biological matrices using hydrophilic interaction liquid chromatography-tandem mass spectrometry

A straightforward, high-throughput method was developed and fully validated for the simultaneous determination of the specific tobacco biomarkers nicotine and its main metabolite cotinine in a wide dynamic range and supporting the most common human biological matrices (urine, oral fluid and hair). Sample preparation was performed inside the very HPLC injection vials by pipetting 0.5 mL of the liquid samples, deuterated internal standards in alkaline solution and dichloromethane as extraction solvent. Solid samples (i.e. around 10 mg hair) were first submitted to alkaline digestion in the HPLC vials and processed accordingly. The organic phase (reached through the upper aqueous layer) was directly injected without further treatment. Instrumental analysis was performed using hydrophilic interaction (HILIC) ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). Total chromatographic time was 2 min. The method covers a wide dynamic range making it fit-for-purpose for the analysis of samples covering entire populations, irrespective of the level of exposure or tobacco use. Calibration curves (r 2 > 0.995) covered the range 1-2000 ng/mL (or 0.05-100 ng/mg hair) for nicotine and 0.1-2000 ng/mL (or 0.005-100 ng/mg hair) for cotinine. Within-run and between-run precision and accuracy were typically below 10 %, and always below 20 % at the lower limit of quantification. The method was successfully applied to the analysis of samples from different projects involving multiple matrices

Métodos probabilísticos en el estudio de operadores lineales positivos

Los operadores lineales positivos son uno de los métodos de aproximación de funciones más estudiados. Uno de los ejemplos más importantes son los polinomios de Bernstein, que fueron introducidos por S. Bernstein a principios del siglo XX para dar una demostración sencilla del teorema de aproximación de Weierstrass y que, actualmente, tienen una gran importancia en el diseño asistido por ordenador. Estos polinomios están muy unidos a la probabilidad, y fueron el punto de partida de un gran interés en aplicar métodos probabilísticos en la aproximación mediante operadores lineales positivos. Muchos de los operadores estudiados habitualmente en la literatura poseen representaciones probabilísticas en términos de procesos estocásticos. Dichas representaciones permiten demostrar varias propiedades de los operadores lineales positivos de forma unificada y sencilla, utilizando herramientas como la esperanza condicionada a sigma-álgebras o las martingalas. En este trabajo, veremos propiedades de tres tipos: propiedades de preservación, principalmente de la monotonía, phi-variación, convexidad, constantes de Lipschitz y módulo de continuidad; propiedades aproximación, centrándonos en la convergencia monótona bajo convexidad y una cierta propiedad de tipo Lipschitz; y propiedades de velocidad de convergencia, respecto al primer y segundo módulo de continuidad, y en menor medida, respecto al segundo módulo de continuidad de Ditzian-Totik. En los dos primeros tipos de propiedades, consideraremos fundamentalmente los polinomios de Bernstein y los operadores de Szász y de Weierstrass, mientras que la velocidad de convergencia la estudiaremos, principalmente, para los polinomios de Bernstein.<br /

Nuevo catalizador a base de un óxido metálico sulfatado, procedimiento para su preparación y aplicaciones

Referencia OEPM: P200100637.-- Fecha de solicitud: 19/03/2001.-- Titular: Compañía Española de Petróleos, S.A. (CEPSA).Dicho catalizador es un sólido fuertemente ácido que comprende esencialmente un soporte de un hidróxido sulfatado de un metal del grupo IV del Sistema Periódico de los Elementos, sobre el cual se encuentra soportado un metal del Grupo V y un metal del Grupo VIII. El procedimiento comprende: (a) sulfatación de dicho soporte, (b) incorporación del componente metálico del Grupo V al producto de (a); (c) incorporación del metal del Grupo VIII al producto de (b); (d) calcinación del producto de (c); (e) reducción del producto calcinado de (d). Uso en los procesos de isomerización de parafinas lineales o cíclicas.Peer reviewe

Characterization of the Alpha-Beta and Martensitic Transformations en the Ti-6Al-2Sn-4Zr-6Mo Alloy

A Ti–6Al–2Sn–4Zr–6Mo (wt.%) alloy has been subjected to different thermal treatments of solution and aging leading to different amounts and distribution of untransformed _-phase, _-phase and martensite. In order to study the _-phase transformation, and thus to evaluate its kinetic behaviour, its characteristics and its influence in subsequent transformations, dilatometric analysis tests, metallographic studies, hardness, and conductivity measurements have been performed

Analysis of goal pattern in futsal competition: 1st Division and 2nd Division B

El objetivo de este estudio fue analizar las variables que definen el patrón del gol en las categorías de Segunda División B y Primera División del fútbol sala español, y observar si existen diferencias significativas entre una categoría profesional y otra semiprofesional. Se han analizado un total de 840 goles pertenecientes a la temporada 2016/2017. El método utilizado ha sido una metodología observacional a través del software Longomatch. Los resultados se presentan en estadística descriptiva a partir de medias, desviaciones estándar y porcentajes. Hay diferencias significativas en ambas categorías en relación a los goles encajados por la zona 2 de portería (p=.045) y en la situación de gol a partir de saque rápido del portero, ataque posicional o gol en propia puerta (p=.032). También se encontraron diferencias en cuanto al número de jugadores que intervienen para 4 (p=.000) y 5 jugadores (p=.002). En cambio no se detectaron cambios significativos en las variables «zona del campo», «tiempo de juego» y «superficie de contacto». Conocer en profundidad las variables más utilizadas por los jugadores para que se produzca un gol, permitirá ofrecer a nuestros deportistas una metodología de entrenamiento más eficaz en función del objetivo pretendido.The aim of this study was to analyze the variables that define the goal pattern in the categories of the Second Division B and First Division of futsal, and significant differences are observed between a professional category and a semi-professional one. A total of 840 goals belonging to the 2016/2017 season have been analyzed. The method used has been an observational methodology through Longomatch software. The results are presented in the descriptive statistics of means, standard deviations and percentages. There are significant differences in both categories in relation to the goals conceded by goal zone 2 (p=.045) and in the rapid goal goalkeeper position, positional attack or own goal (p=.032). There were also differences in the number of players involved for 4 (p=.000) and 5 players (p=.002). On the other hand, no significant changes were detected in the variables «field zone», «game time» and «contact surface». Knowing in depth the variables most used by players to produce a goal, will allow our athletes to offer a more effective training methodology according to the intended objective

Modeling and Analysis of the Performance of Exascale Photonic Networks

"This is the peer reviewed version of the following article: Duro, José, Jose A. Pascual, Salvador Petit, Julio Sahuquillo, and María E. Gómez. 2018. Modeling and Analysis of the Performance of Exascale Photonic Networks. Concurrency and Computation: Practice and Experience 31 (21). Wiley. doi:10.1002/cpe.4773, which has been published in final form at https://doi.org/10.1002/cpe.4773. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving."[EN] Photonics technology has become a promising and viable alternative for both on-chip and off-chip interconnection networks of future Exascale systems. Nevertheless, this technology is not mature enough yet in this context, so research efforts focusing on photonic networks are still required to achieve realistic suitable network implementations. In this regard, system-level photonic network simulators can help guide designers to assess the multiple design choices. Most current research is done on electrical network simulators, whose components work widely different from photonics components. In this work, we summarize and compare the working behavior of both technologies which includes the use of optical routers, wavelength-division multiplexing and circuit switching among others. After implementing them into a well-known simulation framework, an extensive simulation study has been carried out using realistic photonic network configurations with synthetic and realistic traffic. Experimental results show that, compared to electrical networks, optical networks can reduce the execution time of the studied real workloads in almost one order of magnitude. Our study also reveals that the photonic configuration highly impacts on the network performance, being the bandwidth per channel and the message length the most important parameters.This work was supported by the ExaNeSt project, funded by the European Union's Horizon 2020 Research and Innovation Program under grant 671553, and by the Spanish Ministerio de Economía y Competitividad (MINECO) and Plan E funds under grant TIN2015-66972-C5-1-R. Pascual was supported by a HiPEAC Collaboration Grant.Duro-Gómez, J.; Pascual Pérez, JA.; Petit Martí, SV.; Sahuquillo Borrás, J.; Gómez Requena, ME. (2019). Modeling and Analysis of the Performance of Exascale Photonic Networks. Concurrency and Computation Practice and Experience. 31(21):1-12. https://doi.org/10.1002/cpe.4773S1123121Top500 website. Accessed January2018.Kodi, A. K., Neel, B., & Brantley, W. C. (2014). Photonic Interconnects for Exascale and Datacenter Architectures. 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Paper presented at: 23rd IEEE International Symposium on High Performance Computer Architecture (HPCA);2016;Austin TX.PucheJ LechagoS PetitS GómezME SahuquilloJ.Accurately modeling a photonic NoC in a detailed CMP simulation framework. Paper presented at: 2016 International Conference on High Performance Computing & Simulation (HPCS);2016;Innsbruck Austria.ChenG ChenH HaurylauM et al.On‐chip copper‐based vs. optical interconnects: delay uncertainty latency power and bandwidth density comparative predictions. Paper presented at: 2006 International Interconnect Technology Conference;2006;Burlingame CA.KatevenisM ChrysosN MarazakisM et al.The ExaNeSt project: Interconnects storage and packaging for exascale systems. Paper presented at: 2016 Euromicro Conference on Digital System Design (DSD);2016;Limassol Cyprus.ConcattoC PascualJA NavaridasJ et al.A CAM-Free Exascalable HPC Router for Low-Energy Communications. Paper presented at: 31st International Conference on Architecture of Computing Systems (ARCS);2018.DuanG‐H FedeliJ‐M KeyvaniniaS ThomsonD et al.10 Gb/s integrated tunable hybrid III‐V/si laser and silicon Mach‐Zehnder modulator. Paper presented at: European Conference and Exhibition on Optical Communications;2012;Amsterdam The Netherlands.DuanGH JanyC Le LiepvreAL et al.Integrated hybrid III‐V/si laser and transmitter. Paper presented at: 2012 International Conference on Indium Phosphide and Related Materials;2012;Santa Barbara CA.Soref, R., & Bennett, B. (1987). Electrooptical effects in silicon. IEEE Journal of Quantum Electronics, 23(1), 123-129. doi:10.1109/jqe.1987.1073206Liu, A., Liao, L., Rubin, D., Nguyen, H., Ciftcioglu, B., Chetrit, Y., … Paniccia, M. (2007). High-speed optical modulation based on carrier depletion in a silicon waveguide. Optics Express, 15(2), 660. doi:10.1364/oe.15.000660Thomson, D. J., Gardes, F. Y., Hu, Y., Mashanovich, G., Fournier, M., Grosse, P., … Reed, G. T. (2011). High contrast 40Gbit/s optical modulation in silicon. Optics Express, 19(12), 11507. doi:10.1364/oe.19.011507Bergman, K., Carloni, L. P., Biberman, A., Chan, J., & Hendry, G. (2014). Photonic Network-on-Chip Design. Integrated Circuits and Systems. doi:10.1007/978-1-4419-9335-9Dong, P., Chen, L., Xie, C., Buhl, L. L., & Chen, Y.-K. (2012). 50-Gb/s silicon quadrature phase-shift keying modulator. Optics Express, 20(19), 21181. doi:10.1364/oe.20.021181DongP LiuX SethumadhavanC et al.224‐Gb/s PDM‐16‐QAM modulator and receiver based on silicon photonic integrated circuits. Paper presented at: Optical Fiber Communication Conference/National Fiber Optic Engineers Conference;2013;Anaheim CA.Navaridas, J., Miguel-Alonso, J., Pascual, J. A., & Ridruejo, F. J. (2011). Simulating and evaluating interconnection networks with INSEE. Simulation Modelling Practice and Theory, 19(1), 494-515. doi:10.1016/j.simpat.2010.08.008Lu, L., Zhao, S., Zhou, L., Li, D., Li, Z., Wang, M., … Chen, J. (2016). 16 × 16 non-blocking silicon optical switch based on electro-optic Mach-Zehnder interferometers. Optics Express, 24(9), 9295. doi:10.1364/oe.24.009295DuroJ PetitS SahuquilloJ GómezME.Modeling a photonic network for exascale computing. Paper presented at: 2017 International Conference on High Performance Computing & Simulation (HPCS);2017;Genoa Italy.Xi, K., Kao, Y.-H., & Chao, H. J. (2012). A Petabit Bufferless Optical Switch for Data Center Networks. Optical Interconnects for Future Data Center Networks, 135-154. doi:10.1007/978-1-4614-4630-9_8KimJ DallyWJ ScottS AbtsD.Technology‐driven highly‐scalable dragonfly topology. Paper presented at: 35th International Symposium on Computer Architecture (ISCA);2008;Beijing China.Essiambre, R.-J., & Tkach, R. W. (2012). Capacity Trends and Limits of Optical Communication Networks. Proceedings of the IEEE, 100(5), 1035-1055. doi:10.1109/jproc.2012.2182970Temprana, E., Myslivets, E., Kuo, B. P.-P., Liu, L., Ataie, V., Alic, N., & Radic, S. (2015). Overcoming Kerr-induced capacity limit in optical fiber transmission. Science, 348(6242), 1445-1448. doi:10.1126/science.aab1781Springel, V. (2005). The cosmological simulation code gadget-2. Monthly Notices of the Royal Astronomical Society, 364(4), 1105-1134. doi:10.1111/j.1365-2966.2005.09655.xPlimpton, S. (1995). Fast Parallel Algorithms for Short-Range Molecular Dynamics. Journal of Computational Physics, 117(1), 1-19. doi:10.1006/jcph.1995.1039Ben‐ItzhakY ZahaviE CidonI KolodnyA.HNOCS: Modular open‐source simulator for heterogeneous NoCs. Paper presented at: 2012 International Conference on Embedded Computer Systems (SAMOS);2012;Samos Greece.HossainH AhmedM Al‐NayeemA IslamTZ AkbarMM.Gpnocsim‐a general purpose simulator for network‐on‐chip. 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Study of the dehydroxylation-rehydroxylation of pyrophyllite

Pyrophyllite is a raw material of significant interest due to its large number of applications. Most of these applications require a thermal transformation of pyrophyllite; this thermal transformation implies the release of structural OH groups and the formation of new phases. In this paper, we report on the dehydroxylation of pyrophyllite and the reversibility of the process. A value of 224±16 kJ/mol for the dehydroxylation of pyrophyllite was obtained. In addition, it was observed that the partially or totally dehydroxylated pyrophyllite suffered a partial reversible rehydroxylation when cooled to room temperature. This rehydroxylation was substantiated by thermogravimetric measurements, while infrared spectroscopic studies showed that, during the rehydroxylation, the intensity of the OH band at 3675 cm -1 increased as two new bands at 3690 and 3702 cm-1 appeared. This rehydroxylation process was heavily influenced by the particle size of the pyrophyllite. Thus, smaller particles (<1 μm) showed a larger rehydroxylation percentage (about 12%), while the larger ones (20-40 μm) showed a smaller percentage (about 1.6%). The extent of rehydroxylation also depended on the dehydroxylation temperature and reached a maximum value at 750°C.Ministerio de Economía y Competitividad 2008-06619/MATJunta de Andalucía TEP-0300

Third-order linearization for self-beating filtered microwave photonic systems using a dual parallel Mach-Zehnder modulator

© 2016 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibitedWe develop, analyze and apply a linearization technique based on dual parallel Mach-Zehnder modulator to self-beating microwave photonics systems. The approach enables broadband low-distortion transmission and reception at expense of a moderate electrical power penalty yielding a small optical power penalty (<1 dB).This research work is funded by INTEL Corporation. The work of D. Perez was supported by the FPI-UPV Grant Program from the Universitat Politecnica de Valencia and the work of I. Gasulla was supported by the Spanish MINECO through the Ramon y Cajal Program.Pérez-López, D.; Gasulla Mestre, I.; Capmany Francoy, J.; Sanchez Fandiño, JA.; Muñoz Muñoz, P.; Alavi, H. (2016). Third-order linearization for self-beating filtered microwave photonic systems using a dual parallel Mach-Zehnder modulator. Optics Express. 24(18):20632-20640. doi:10.1364/OE.24.020632S2063220640241