Experiencia de enseñanza online de “Bases de Datos” en una universidad presencial

La enseñanza online es una alternativa a la enseñanza presencial que es escogida por un número cada vez mayor de estudiantes universitarios, apareciendo como un complemento muy interesante en la enseñanza de las universidades presenciales. Sin embargo, la organización tradicional de la docencia de las asignaturas presenciales no resulta adecuada en entornos de enseñanza a distancia. En este artículo presentamos el resultado de la experiencia que, a lo largo de más de 6 años, hemos realizado en la enseñanza online de la asignatura “Bases de Datos”. Comparamos la organización de la enseñanza en los grupos presenciales con la del grupo de enseñanza online, los problemas que se plantean, las soluciones empleadas y el resultado obtenido.Peer Reviewe

The generalized Robinson-Foulds distance for phylogenetic trees

The Robinson-Foulds (RF) distance, one of the most widely used metrics for comparing phylogenetic trees, has the advantage of being intuitive, with a natural interpretation in terms of common splits, and it can be computed in linear time, but it has a very low resolution, and it may become trivial for phylogenetic trees with overlapping taxa, that is, phylogenetic trees that share some but not all of their leaf labels. In this article, we study the properties of the Generalized Robinson-Foulds (GRF) distance, a recently proposed metric for comparing any structures that can be described by multisets of multisets of labels, when applied to rooted phylogenetic trees with overlapping taxa, which are described by sets of clusters, that is, by sets of sets of labels. We show that the GRF distance has a very high resolution, it can also be computed in linear time, and it is not (uniformly) equivalent to the RF distance.This research was partially supported by the Spanish Ministry of Science, Innovation and Universitiesand the European Regional Development Fund through project PGC2018-096956-B-C43 (FEDER/MICINN/AEI), and by the Agency for Management of University and Research Grants (AGAUR) throughgrant 2017-SGR-786 (ALBCOM).Peer ReviewedPostprint (published version

Experiencia de enseñanza online de “Bases de Datos” en una universidad presencial

La enseñanza online es una alternativa a la enseñanza presencial que es escogida por un número cada vez mayor de estudiantes universitarios, apareciendo como un complemento muy interesante en la enseñanza de las universidades presenciales. Sin embargo, la organización tradicional de la docencia de las asignaturas presenciales no resulta adecuada en entornos de enseñanza a distancia. En este artículo presentamos el resultado de la experiencia que, a lo largo de más de 6 años, hemos realizado en la enseñanza online de la asignatura “Bases de Datos”. Comparamos la organización de la enseñanza en los grupos presenciales con la del grupo de enseñanza online, los problemas que se plantean, las soluciones empleadas y el resultado obtenido.Este trabajo ha sido parcialmente financiado por la Escuela Técnica Superior de Ingeniería Informática y por el PAID-04-10 de la Universidad Politécnica de Valencia

Pd@UiO-66-Type MOFs Prepared by Chemical Vapor Infiltration as Shape-Selective Hydrogenation Catalysts

[EN] Host-guest inclusion properties of UiO-66 and UiO-67 metal-organic frameworks have been studied using ferrocene (FeCp2) as probe molecule. According to variable-temperature solid-state H-1 and C-13 CP-MAS-NMR, two different environments exist for adsorbed FeCp2 inside UiO-66 and UiO-67, which have been assigned to octahedral and tetrahedral cavities. At room temperature, a rapid exchange between these two adsorption sites occurs in UiO-67, while at -80 degrees C the intracrystalline traffic of FeCp2 through the triangular windows is largely hindered. In UiO-66, FeCp2 diffusion is already impeded at room temperature, in agreement with the smaller pore windows. Palladium nanoparticles (Pd NPs) encapsulated inside UiO-66 and UiO-67 have been prepared by chemical vapor infiltration of (allyl)Pd(Cp) followed by UV light irradiation. Infiltration must be carried out at low temperature (-10 degrees C) to avoid uncontrolled decomposition of the organometallic precursor and formation of Pd NPs at the external surface of the MOF. The resulting Pd-MOFs are shape selective catalysts, as shown for the hydrogenation of carbonyl compounds with different steric hindrance.Financial support from the Consolider-Ingenio 2010 (project MULTICAT), the Severo Ochoa program, and the Spanish Ministry of Science and Innovation (project MAT2011-29020-C02-01) is gratefully acknowledged. C. R. is grateful for a graduate student fellowship awarded by the Cluster of Excellence RESOLV (EXC 1069) funded by the German Deutsche Forschungsgemeinschaft (DFG). This project has further received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skolodowska-Curie grant agreement, number 641887.Luz Mínguez, I.; Roesler, C.; Epp, K.; Llabrés I Xamena, FX.; Fischer, RA. (2015). Pd@UiO-66-Type MOFs Prepared by Chemical Vapor Infiltration as Shape-Selective Hydrogenation Catalysts. European Journal of Inorganic Chemistry. 23:3904-3912. https://doi.org/10.1002/ejic.201500299S3904391223Corma, A., García, H., & Llabrés i Xamena, F. X. (2010). Engineering Metal Organic Frameworks for Heterogeneous Catalysis. Chemical Reviews, 110(8), 4606-4655. doi:10.1021/cr9003924Farrusseng, D., Aguado, S., & Pinel, C. (2009). Metal-Organic Frameworks: Opportunities for Catalysis. Angewandte Chemie International Edition, 48(41), 7502-7513. doi:10.1002/anie.200806063Gascon, J., Corma, A., Kapteijn, F., & Llabrés i Xamena, F. X. (2013). Metal Organic Framework Catalysis: Quo vadis? ACS Catalysis, 4(2), 361-378. doi:10.1021/cs400959kLlabres i Xamena, F., & Gascon, J. (Eds.). (2013). Metal Organic Frameworks as Heterogeneous Catalysts. Catalysis Series. doi:10.1039/9781849737586Li, B., Wang, H., & Chen, B. (2014). Microporous Metal-Organic Frameworks for Gas Separation. Chemistry - An Asian Journal, 9(6), 1474-1498. doi:10.1002/asia.201400031Li, J.-R., Kuppler, R. J., & Zhou, H.-C. (2009). Selective gas adsorption and separation in metal–organic frameworks. Chemical Society Reviews, 38(5), 1477. doi:10.1039/b802426jKreno, L. E., Leong, K., Farha, O. K., Allendorf, M., Van Duyne, R. P., & Hupp, J. T. (2011). Metal–Organic Framework Materials as Chemical Sensors. Chemical Reviews, 112(2), 1105-1125. doi:10.1021/cr200324tEsken, D., Turner, S., Lebedev, O. I., Van Tendeloo, G., & Fischer, R. A. (2010). Au@ZIFs: Stabilization and Encapsulation of Cavity-Size Matching Gold Clusters inside Functionalized Zeolite Imidazolate Frameworks, ZIFs. Chemistry of Materials, 22(23), 6393-6401. doi:10.1021/cm102529cHermes, S., Schröter, M.-K., Schmid, R., Khodeir, L., Muhler, M., Tissler, A., … Fischer, R. A. (2005). Metal@MOF: Loading of Highly Porous Coordination Polymers Host Lattices by Metal Organic Chemical Vapor Deposition. Angewandte Chemie International Edition, 44(38), 6237-6241. doi:10.1002/anie.200462515Meilikhov, M., Yusenko, K., Esken, D., Turner, S., Van Tendeloo, G., & Fischer, R. A. (2010). Metals@MOFs - Loading MOFs with Metal Nanoparticles for Hybrid Functions. European Journal of Inorganic Chemistry, 2010(24), 3701-3714. doi:10.1002/ejic.201000473Schröder, F., Esken, D., Cokoja, M., van den Berg, M. W. E., Lebedev, O. I., Van Tendeloo, G., … Fischer, R. A. (2008). Ruthenium Nanoparticles inside Porous [Zn4O(bdc)3] by Hydrogenolysis of Adsorbed [Ru(cod)(cot)]: A Solid-State Reference System for Surfactant-Stabilized Ruthenium Colloids. Journal of the American Chemical Society, 130(19), 6119-6130. doi:10.1021/ja078231uRösler, C., Esken, D., Wiktor, C., Kobayashi, H., Yamamoto, T., Matsumura, S., … Fischer, R. A. (2014). Encapsulation of Bimetallic Nanoparticles into a Metal-Organic Framework: Preparation and Microstructure Characterization of Pd/Au@ZIF-8. European Journal of Inorganic Chemistry, 2014(32), 5514-5521. doi:10.1002/ejic.201402409Müller, M., Hermes, S., Kähler, K., van den Berg, M. W. E., Muhler, M., & Fischer, R. A. (2008). Loading of MOF-5 with Cu and ZnO Nanoparticles by Gas-Phase Infiltration with Organometallic Precursors: Properties of Cu/ZnO@MOF-5 as Catalyst for Methanol Synthesis. Chemistry of Materials, 20(14), 4576-4587. doi:10.1021/cm703339hMüller, M., Zhang, X., Wang, Y., & Fischer, R. A. (2009). Nanometer-sized titania hosted inside MOF-5. Chem. Commun., (1), 119-121. doi:10.1039/b814241fRösler, C., & Fischer, R. A. (2015). Metal–organic frameworks as hosts for nanoparticles. CrystEngComm, 17(2), 199-217. doi:10.1039/c4ce01251hHermannsdörfer, J., Friedrich, M., Miyajima, N., Albuquerque, R. Q., Kümmel, S., & Kempe, R. (2012). Ni/Pd@MIL-101: Synergistic Catalysis with Cavity-Conform Ni/Pd Nanoparticles. Angewandte Chemie International Edition, 51(46), 11473-11477. doi:10.1002/anie.201205078Cirujano, F. G., Llabrés i Xamena, F. X., & Corma, A. (2012). MOFs as multifunctional catalysts: One-pot synthesis of menthol from citronellal over a bifunctional MIL-101 catalyst. Dalton Transactions, 41(14), 4249. doi:10.1039/c2dt12480gCirujano, F. G., Leyva-Pérez, A., Corma, A., & Llabrés i Xamena, F. X. (2013). MOFs as Multifunctional Catalysts: Synthesis of Secondary Arylamines, Quinolines, Pyrroles, and Arylpyrrolidines over Bifunctional MIL-101. ChemCatChem, 5(2), 538-549. doi:10.1002/cctc.201200878Guo, Z., Xiao, C., Maligal-Ganesh, R. V., Zhou, L., Goh, T. W., Li, X., … Huang, W. (2014). Pt Nanoclusters Confined within Metal–Organic Framework Cavities for Chemoselective Cinnamaldehyde Hydrogenation. ACS Catalysis, 4(5), 1340-1348. doi:10.1021/cs400982nLi, X., Guo, Z., Xiao, C., Goh, T. W., Tesfagaber, D., & Huang, W. (2014). Tandem Catalysis by Palladium Nanoclusters Encapsulated in Metal–Organic Frameworks. ACS Catalysis, 4(10), 3490-3497. doi:10.1021/cs5006635Zhang, W., Lu, G., Cui, C., Liu, Y., Li, S., Yan, W., … Huo, F. (2014). A Family of Metal-Organic Frameworks Exhibiting Size-Selective Catalysis with Encapsulated Noble-Metal Nanoparticles. Advanced Materials, 26(24), 4056-4060. doi:10.1002/adma.201400620Chen, L., Chen, H., Luque, R., & Li, Y. (2014). Metal−organic framework encapsulated Pd nanoparticles: towards advanced heterogeneous catalysts. Chem. Sci., 5(10), 3708-3714. doi:10.1039/c4sc01847hRamsahye, N. A., Gao, J., Jobic, H., Llewellyn, P. L., Yang, Q., Wiersum, A. D., … Maurin, G. (2014). Adsorption and Diffusion of Light Hydrocarbons in UiO-66(Zr): A Combination of Experimental and Modeling Tools. The Journal of Physical Chemistry C, 118(47), 27470-27482. doi:10.1021/jp509672cCatal. Today 2014Cirujano, F. G., Corma, A., & Llabrés i Xamena, F. X. (2015). Conversion of levulinic acid into chemicals: Synthesis of biomass derived levulinate esters over Zr-containing MOFs. Chemical Engineering Science, 124, 52-60. doi:10.1016/j.ces.2014.09.047Vermoortele, F., Ameloot, R., Vimont, A., Serre, C., & De Vos, D. (2011). An amino-modified Zr-terephthalate metal–organic framework as an acid–base catalyst for cross-aldol condensation. Chem. Commun., 47(5), 1521-1523. doi:10.1039/c0cc03038dVermoortele, F., Bueken, B., Le Bars, G., Van de Voorde, B., Vandichel, M., Houthoofd, K., … De Vos, D. E. (2013). Synthesis Modulation as a Tool To Increase the Catalytic Activity of Metal–Organic Frameworks: The Unique Case of UiO-66(Zr). Journal of the American Chemical Society, 135(31), 11465-11468. doi:10.1021/ja405078uVermoortele, F., Vandichel, M., Van de Voorde, B., Ameloot, R., Waroquier, M., Van Speybroeck, V., & De Vos, D. E. (2012). Electronic Effects of Linker Substitution on Lewis Acid Catalysis with Metal-Organic Frameworks. Angewandte Chemie International Edition, 51(20), 4887-4890. doi:10.1002/anie.201108565McClellan, W. R., Hoehn, H. H., Cripps, H. N., Muetterties, E. L., & Howk, B. W. (1961). π-Allyl Derivatives of Transition Metals. Journal of the American Chemical Society, 83(7), 1601-1607. doi:10.1021/ja01468a013Schaate, A., Roy, P., Godt, A., Lippke, J., Waltz, F., Wiebcke, M., & Behrens, P. (2011). Modulated Synthesis of Zr-Based Metal-Organic Frameworks: From Nano to Single Crystals. Chemistry - A European Journal, 17(24), 6643-6651. doi:10.1002/chem.20100321

Defect-Engineered Ruthenium MOFs as Versatile Heterogeneous Hydrogenation Catalysts

[EN] Ruthenium MOF [Ru-3(BTC)(2)Y-y] . G(g) (BTC=benzene-1,3,5-tricarboxylate; Y=counter ions=Cl-, OH-, OAc-; G=guest molecules=HOAc, H2O) is modified via a mixed-linker approach, using mixtures of BTC and pyridine-3,5-dicarboxylate (PYDC) linkers, triggering structural defects at the distinct Ru-2 paddlewheel (PW) nodes. This defect-engineering leads to enhanced catalytic properties due to the formation of partially reduced Ru-2-nodes. Application of a hydrogen pre-treatment protocol to the Ru-MOFs, leads to a further boost in catalytic activity. We study the benefits of (1) defect engineering and (2) hydrogen pre-treatment on the catalytic activity of Ru-MOFs in the Meerwein-Ponndorf-Verley reaction and the isomerization of allylic alcohols to saturated ketones. Simple solvent washing could not avoid catalyst deactivation during recycling for the latter reaction, while hydrogen treatment prior to each catalytic run proved to facilitate materials recyclability with constant activity over five runs.Funding by the Spanish Government is acknowledged through projects MAT2017-82288-C2-1-P and Severo Ochoa (SEV-2016-0683). This project is further funded by the Deutsche Forschungsgemeinschaft grant no. FI-502/32-1 ("DEMOFs"). KE and WRH would like to thank TUM Graduate School and the Gesellschaft Deutscher Chemiker (GDCh) for financial support. KE gratefully acknowledges support from the colleagues Olesia Halbherr (nee Kozachuk) and Wenhua Zhang.Epp, K.; Luz, I.; Heinz, WR.; Rapeyko, A.; Llabrés I Xamena, FX.; Fischer, RA. (2020). Defect-Engineered Ruthenium MOFs as Versatile Heterogeneous Hydrogenation Catalysts. ChemCatChem. 12(6):1720-1725. https://doi.org/10.1002/cctc.201902079S17201725126Gascon, J., Corma, A., Kapteijn, F., & Llabrés i Xamena, F. X. (2013). Metal Organic Framework Catalysis: Quo vadis? ACS Catalysis, 4(2), 361-378. doi:10.1021/cs400959kHasegawa, S., Horike, S., Matsuda, R., Furukawa, S., Mochizuki, K., Kinoshita, Y., & Kitagawa, S. (2007). Three-Dimensional Porous Coordination Polymer Functionalized with Amide Groups Based on Tridentate Ligand:  Selective Sorption and Catalysis. Journal of the American Chemical Society, 129(9), 2607-2614. doi:10.1021/ja067374yWang, Z., & Cohen, S. M. (2009). Postsynthetic modification of metal–organic frameworks. Chemical Society Reviews, 38(5), 1315. doi:10.1039/b802258pVermoortele, F., Bueken, B., Le Bars, G., Van de Voorde, B., Vandichel, M., Houthoofd, K., … De Vos, D. E. (2013). Synthesis Modulation as a Tool To Increase the Catalytic Activity of Metal–Organic Frameworks: The Unique Case of UiO-66(Zr). Journal of the American Chemical Society, 135(31), 11465-11468. doi:10.1021/ja405078uZheng, J., Ye, J., Ortuño, M. A., Fulton, J. L., Gutiérrez, O. Y., Camaioni, D. M., … Lercher, J. A. (2019). Selective Methane Oxidation to Methanol on Cu-Oxo Dimers Stabilized by Zirconia Nodes of an NU-1000 Metal–Organic Framework. Journal of the American Chemical Society, 141(23), 9292-9304. doi:10.1021/jacs.9b02902Rogge, S. M. J., Bavykina, A., Hajek, J., Garcia, H., Olivos-Suarez, A. I., Sepúlveda-Escribano, A., … Gascon, J. (2017). Metal–organic and covalent organic frameworks as single-site catalysts. Chemical Society Reviews, 46(11), 3134-3184. doi:10.1039/c7cs00033bFarrusseng, D., Aguado, S., & Pinel, C. (2009). Metal-Organic Frameworks: Opportunities for Catalysis. Angewandte Chemie International Edition, 48(41), 7502-7513. doi:10.1002/anie.200806063Valvekens, P., Vermoortele, F., & De Vos, D. (2013). Metal–organic frameworks as catalysts: the role of metal active sites. Catalysis Science & Technology, 3(6), 1435. doi:10.1039/c3cy20813cDoonan, C. J., & Sumby, C. J. (2017). Metal–organic framework catalysis. CrystEngComm, 19(29), 4044-4048. doi:10.1039/c7ce90106bDhakshinamoorthy, A., Li, Z., & Garcia, H. (2018). Catalysis and photocatalysis by metal organic frameworks. Chemical Society Reviews, 47(22), 8134-8172. doi:10.1039/c8cs00256hWang, Y., & Wöll, C. (2018). Chemical Reactions at Isolated Single-Sites Inside Metal–Organic Frameworks. Catalysis Letters, 148(8), 2201-2222. doi:10.1007/s10562-018-2432-2Genna, D. T., Pfund, L. Y., Samblanet, D. C., Wong-Foy, A. G., Matzger, A. J., & Sanford, M. S. (2016). Rhodium Hydrogenation Catalysts Supported in Metal Organic Frameworks: Influence of the Framework on Catalytic Activity and Selectivity. ACS Catalysis, 6(6), 3569-3574. doi:10.1021/acscatal.6b00404Chen, H., He, Y., Pfefferle, L. D., Pu, W., Wu, Y., & Qi, S. (2018). Phenol Catalytic Hydrogenation over Palladium Nanoparticles Supported on Metal-Organic Frameworks in the Aqueous Phase. ChemCatChem, 10(12), 2558-2570. doi:10.1002/cctc.201800211Marx, S., Kleist, W., Huang, J., Maciejewski, M., & Baiker, A. (2010). Tuning functional sites and thermal stability of mixed-linker MOFs based on MIL-53(Al). Dalton Transactions, 39(16), 3795. doi:10.1039/c002483jFang, Z., Bueken, B., De Vos, D. E., & Fischer, R. A. (2015). Defect-Engineered Metal-Organic Frameworks. Angewandte Chemie International Edition, 54(25), 7234-7254. doi:10.1002/anie.201411540Dissegna, S., Epp, K., Heinz, W. R., Kieslich, G., & Fischer, R. A. (2018). Defective Metal-Organic Frameworks. Advanced Materials, 30(37), 1704501. doi:10.1002/adma.201704501Zhang, Y.-B., Furukawa, H., Ko, N., Nie, W., Park, H. J., Okajima, S., … Yaghi, O. M. (2015). Introduction of Functionality, Selection of Topology, and Enhancement of Gas Adsorption in Multivariate Metal–Organic Framework-177. Journal of the American Chemical Society, 137(7), 2641-2650. doi:10.1021/ja512311aDrache, F., Cirujano, F. G., Nguyen, K. D., Bon, V., Senkovska, I., Llabrés i Xamena, F. X., & Kaskel, S. (2018). Anion Exchange and Catalytic Functionalization of the Zirconium-Based Metal–Organic Framework DUT-67. Crystal Growth & Design, 18(9), 5492-5500. doi:10.1021/acs.cgd.8b00832Zhang, W., Kauer, M., Halbherr, O., Epp, K., Guo, P., Gonzalez, M. I., … Fischer, R. A. (2016). Ruthenium Metal-Organic Frameworks with Different Defect Types: Influence on Porosity, Sorption, and Catalytic Properties. Chemistry - A European Journal, 22(40), 14297-14307. doi:10.1002/chem.201602641Kozachuk, O., Yusenko, K., Noei, H., Wang, Y., Walleck, S., Glaser, T., & Fischer, R. A. (2011). Solvothermal growth of a ruthenium metal–organic framework featuring HKUST-1 structure type as thin films on oxide surfaces. Chemical Communications, 47(30), 8509. doi:10.1039/c1cc11107hKozachuk, O., Luz, I., Llabrés i Xamena, F. X., Noei, H., Kauer, M., Albada, H. B., … Fischer, R. A. (2014). Multifunctional, Defect-Engineered Metal-Organic Frameworks with Ruthenium Centers: Sorption and Catalytic Properties. Angewandte Chemie International Edition, 53(27), 7058-7062. doi:10.1002/anie.201311128Agirrezabal-Telleria, I., Luz, I., Ortuño, M. A., Oregui-Bengoechea, M., Gandarias, I., López, N., … Soukri, M. (2019). Gas reactions under intrapore condensation regime within tailored metal–organic framework catalysts. Nature Communications, 10(1). doi:10.1038/s41467-019-10013-6Zhang, W., Kozachuk, O., Medishetty, R., Schneemann, A., Wagner, R., Khaletskaya, K., … Fischer, R. A. (2015). Controlled SBU Approaches to Isoreticular Metal-Organic Framework Ruthenium-Analogues of HKUST-1. European Journal of Inorganic Chemistry, 2015(23), 3913-3920. doi:10.1002/ejic.201500478Heinz, W. R., Kratky, T., Drees, M., Wimmer, A., Tomanec, O., Günther, S., … Fischer, R. A. (2019). Mixed precious-group metal–organic frameworks: a case study of the HKUST-1 analogue [RuxRh3−x(BTC)2]. Dalton Transactions, 48(32), 12031-12039. doi:10.1039/c9dt01198fBäckvall, J.-E. (2002). Transition metal hydrides as active intermediates in hydrogen transfer reactions. Journal of Organometallic Chemistry, 652(1-2), 105-111. doi:10.1016/s0022-328x(02)01316-5Chowdhury, R. L., & Bäckvall, J.-E. (1991). Efficient ruthenium-catalysed transfer hydrogenation of ketones by propan-2-ol. J. Chem. Soc., Chem. Commun., 0(16), 1063-1064. doi:10.1039/c39910001063Ahlsten, N., Bartoszewicz, A., & Martín-Matute, B. (2012). Allylic alcohols as synthetic enolate equivalents: Isomerisation and tandem reactions catalysed by transition metal complexes. Dalton Transactions, 41(6), 1660. doi:10.1039/c1dt11678aAhlsten, N., Lundberg, H., & Martín-Matute, B. (2010). Rhodium-catalysed isomerisation of allylic alcohols in water at ambient temperature. Green Chemistry, 12(9), 1628. doi:10.1039/c004964fCahard, D., Gaillard, S., & Renaud, J.-L. (2015). Asymmetric isomerization of allylic alcohols. Tetrahedron Letters, 56(45), 6159-6169. doi:10.1016/j.tetlet.2015.09.098Xia, T., Wei, Z., Spiegelberg, B., Jiao, H., Hinze, S., & de Vries, J. G. (2018). Isomerization of Allylic Alcohols to Ketones Catalyzed by Well-Defined Iron PNP Pincer Catalysts. Chemistry - A European Journal, 24(16), 4043-4049. doi:10.1002/chem.201705454Scalambra, F., Lorenzo-Luis, P., de los Rios, I., & Romerosa, A. (2019). Isomerization of allylic alcohols in water catalyzed by transition metal complexes. Coordination Chemistry Reviews, 393, 118-148. doi:10.1016/j.ccr.2019.04.012Yamaguchi, K., Koike, T., Kotani, M., Matsushita, M., Shinachi, S., & Mizuno, N. (2005). Synthetic Scope and Mechanistic Studies of Ru(OH)x/Al2O3-Catalyzed Heterogeneous Hydrogen-Transfer Reactions. Chemistry - A European Journal, 11(22), 6574-6582. doi:10.1002/chem.200500539Mitchell, R. W., Spencer, A., & Wilkinson, G. (1973). Carboxylato-triphenylphosphine complexes of ruthenium, cationic triphenylphosphine complexes derived from them, and their behaviour as homogeneous hydrogenation catalysts for alkenes. Journal of the Chemical Society, Dalton Transactions, (8), 846. doi:10.1039/dt973000084

Contribución al conocimiento de la fauna fósil del Carbonífero de Menorca

Abstract not availabl

Observed trends and changes in Extreme Climate Indices over the Pyrenees (1959-2015)

Póster presentado en: EMS Annual Meeting: European Conference for Applied Meteorology and Climatology celebrado del 9 al 13 de septiembre de 2017 en Copenhague, Dinamarca.CLIMPY (Characterisation of the evolution of climate and provision of information for adaptation in the Pyrenees) is a transboundary project that aims to perform a detailed analysis of recent trends in temperature, precipitation and snow cover in the Pyrenees, and their future projection. As a result, changes in the frequency, intensity, spatial extent, duration and timing of weather and climate extremes due to climate change are among the more relevant objectives.This project (EFA081/15) is under the umbrella of the Pyrenees Climate Change Observatory (OPCC-CTP), and it has a 65% funding by the European Regional Development Fund (FEDER) through the Interreg Programme V-A Spain-France-Andorra (POCTEFA 2014-2020)