Caracterización de los minerales del dique gabroideo de Messejana - Plasencia en su sector nor-oriental

In the gabbroic Messejana–Plasencia dyke we have distinguished three types of pyroxenes: enstatite, pigeonite and augite. Enstatite and augite have been the first minerals that have crystallized at high T (1100ºC – 1150ºC). Pigeonites (@1000ºC) are later and finally appear symplectic two-pyroxene intergrowths around the orthopyroxene. Plagioclase have a continuous zonation with cores of An75 towards rims of An18. Occasionally, there is a micrographic intergrowth of orthoclase–quartz or albite-quartz interstitially to the plagioclase and pyroxene framework. Three types of amphibole have been distinguished: ferroedenite, magnesiohornblende and ferroactinolite. The estimated temperature range of amphibole crystallization is low suggesting that most amphiboles are subsolidus. Finally, biotite are FeO and TiO2 rich, its crystallization being late when residual liquids were enriched in those elements

Features associated to woody hosts in the bacterial pathogen of olive plants Pseudomonas savastanoi pv. savastanoi

The causal agent of olive knot disease, Pseudomonas savastanoi pv. savastanoi, belongs to the Pseudomonas syringae complex, a bacterial group causing diseases in a broad variety of both woody and herbaceous plant species. Here we summarize our results regarding a set of P. savastanoi pv. savastanoi features exclusively found in the genomes of bacteria from the P. syringae complex isolated from woody hosts. Comparative genomics and evolutionary studies allowed us to identify a 15 kb genomic island (WHOP, from woody host and Pseudomonas), carrying a set of genes involved in degradation of phenolic compounds and exclusively found in bacterial pathogens of woody hosts. Deletion of several WHOP-encoded genes in Pseudomonas savastanoi pv. savastanoi NCPPB 3335 revealed that they play a role in the virulence of the strain in woody olive plants but not in in vitro-grown (nonwoody) plants. In addition, several type III secretion system effectors belonging to the HopAF, HopAO and HopBL families were shown to be clustered across the P. syringae complex according to the woody/herbaceous nature of their host of isolation. Further functional analyses of these virulence factors are needed to facilitate the design of novel strategies directed to control bacterial pathogens of woody hosts.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Comparative Analysis of the Type III Secretion System Effector Repertoires of Pseudomonas savastanoi Pathovars Pathogenic on Woody Hosts

Comunicación de tipo pósterThe species Pseudomonas savastanoi, a member of the Pseudomonas syringae complex, includes four pathovars causing knots or excrescences in woody hosts: P. savastanoi pv. savastanoi (Psv), pv. fraxini (Psf), pv. nerii (Psn) and pv. retacarpa (Psr), comprising isolates from olive, ash, oleander and broom plants, respectively. Pathogenicity of P. savastanoi is dependent, among other factors, on the type III secretion system (T3SS) and its effector (T3E) repertoire. Furthermore, a putative role in the interaction with woody hosts has been suggested for several of these T3E. The recent availability of the genome sequences of several P. savastanoi strains isolated from different hosts has facilitated bioinformatics predictions of their T3SS genes and T3E pools, the study of their distribution in other strains of the P. syringae complex isolated from woody hosts and the functional analysis of several of these secreted proteins. As previously reported for Psv, Psn and Psf, here we show that pathogenicity of Psr ICMP16945, is also dependent on the T3SS. Psv strains NCPPB 3335, ICMP4352 and PseNe107 share a core set of at least 22 T3E, 18 of which are also encoded in Psn ICMP16943, Psf ICMP7711 and Psr ICMP16945. However, these three strains encode truncated versions of 1-2 of these 18 T3E and, Psr ICMP16945 contains three pathovarspecific T3E. Our results also show that several T3E, including HopAO1, are phylogenetically clustered across the P. syringae complex according to the woody/herbaceous nature of their host of isolation, suggesting host specialization of these effectors in this complex.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Compact set of invariants characterizing graph states of up to eight qubits

The set of entanglement measures proposed by Hein, Eisert, and Briegel for n-qubit graph states [Phys. Rev. A 69, 062311 (2004)] fails to distinguish between inequivalent classes under local Clifford operations if n > 6. On the other hand, the set of invariants proposed by van den Nest, Dehaene, and De Moor (VDD) [Phys. Rev. A 72, 014307 (2005)] distinguishes between inequivalent classes, but contains too many invariants (more than 2 10^{36} for n=7) to be practical. Here we solve the problem of deciding which entanglement class a graph state of n < 9 qubits belongs to by calculating some of the state's intrinsic properties. We show that four invariants related to those proposed by VDD are enough for distinguishing between all inequivalent classes with n < 9 qubits.Comment: REVTeX4, 9 pages, 1 figur

Normal indices in Nikishin systems

We improve the class of indices for which normality takes place in a Nikishin system and apply this in Hermite-Padé approximation of such systems of functions

Portafolio digital: un nuevo formato de aprendizaje

El presente documento recoge un estudio exploratorio sobre el uso del E-portafolio como herramienta de innovación en la docencia universitaria de una asignatura. La investigación se basa en un estudio de naturaleza descriptiva a través de la técnica de la encuesta (cuestionario). Los resultados muestran que se trata de una herramienta de aprendizaje valorada positivamente y que plantean una serie de aspectos positivos valorados altamente como la accesibilidad al aprendizaje cooperativo o el ahorro económico y medio ambiental que supone prescindir de la impresión en papel. El E-portafolio es un instrumento que contribuye al proceso de enseñanza-aprendizaje, que ayuda a que el alumnado sea consciente de éste, acercándole progresivamente a un aprendizaje autónomo y responsable

Gas phase selective hydrogenation of furfural to furfuryl alcohol and 2-methylfuran over Cu-CeO2 coprecipitated catalysts

Furfural is an important chemical derived from lignocellulosic biomass, in particular from C5 sugars like xylose, and it is considered as a platform molecule of great potential for the synthesis of a broad spectrum of chemicals. In this sense, furfuryl alcohol and 2-methylfuran are two important chemicals which can be produced through furfural hydrogenation, either in liquid or vapor phase, although the latter is preferred because it can be carried out at atmospheric pressure. Industrially, a copper chromite catalyst is used, although this catalyst can become very toxic due to the presence of chromium. Therefore, much attention is being paid to the development of chromium-free catalysts, more sustainable and environmentally friendly, as those based on Cu or Ni which are active and selective towards the formation of furfuryl alcohol and 2-methylfuran. Furfuryl alcohol is mainly used for the production of thermostatic resins, intermediate in the manufacture of lysine, vitamin C and dispersing agents. Meanwhile, 2-methyl furan is used in the synthesis of pesticides, or in the pharmaceutical and fragrance industries. The aim of this work is the synthesis of a series of copper based catalysts, which have been synthesized by coprecipitation of copper and cerium(IV) and subsequent thermal programmed reduction. This method allows increasing the dispersion of Cu particles, while the use of a support like CeO2 can modify the electronic density of the active phase, which can influence the catalytic activity and resistance to deactivation.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Economy and Competitiveness Ministry (Project CTQ2012-38204-C03-02), Junta de Andalucía (Project: RNM-1565) and FEDER funds of the European Unio

Uso de compost que incluyen cenizas de biomasa para el cultivo de sandía

5 páginas.-- 4 tablas.-- 10 referenciasLa biomasa representa entre el 8 y el 15% del suministro energético mundial como electricidad, calor y combustibles para transporte, y podría contribuir hasta un 33-50% del consumo de energía primaria en 2050. Buena parte de esta energía se obtiene por combustión directa de biomasa generando 476 millones de toneladas de cenizas. Por el contrario de las cenizas derivadas del carbón, las cenizas de biomasa están libres de elementos contaminantes y en el caso de las de biomasa derivada de productos agrícolas y agroindustriales suelen presentar concentraciones apreciables de elementos fertilizantes como K, Mg, además de Ca por lo que su ciclo puede completarse si son reutilizadas en agricultura en lugar de depositadas en vertedero. En el presente trabajo se estudia el uso de un compost mixto de residuos agroindustriales y cenizas de orujo de aceituna como enmienda en un cultivo de sandía (Citrullus lanatus variedad Augusta). Como comparación se usaron tratamientos con el mismo compost de residuos agroindustriales o con fertilización mineral sólo (Control, 220 kg K2O ha-1 como KCl). El compost con cenizas se aplicó a una dosis de 10.000 kg ha-1 y el compost sin cenizas a la dosis de 20.000 kg ha-1. Cada tratamiento se efectuó por cuadruplicado, cultivando la sandía al aire libre. Se determinaron las propiedades del suelo y el rendimiento y estado nutricional del cultivo. Los resultados indican que la inclusión de este tipo de cenizas en las enmiendas de cultivos exigentes nutrientes como potasio puede ser ventajosa, ya que se mantiene la producción del tratamiento control (alrededor de 100000 kg ha-1) pero con mayor tamaño del fruto (más 1,3 kg/fruto en el tratamiento con cenizas).Este trabajo se ha realizado en el marco del proyecto CTQ2013-46804-C2-1-R financiado por el Ministerio de Economía y Competitividad y ha sido parcialmente financiado por el programa FEDER de la Junta de Andalucía. Los autores agradecen a la empresa Fertiormont por la cesión de los productos.Peer reviewe

Entanglement in eight-qubit graph states

Any 8-qubit graph state belongs to one of the 101 equivalence classes under local unitary operations within the Clifford group. For each of these classes we obtain a representative which requires the minimum number of controlled-Z gates for its preparation, and calculate the Schmidt measure for the 8-partite split, and the Schmidt ranks for all bipartite splits. This results into an extension to 8 qubits of the classification of graph states proposed by Hein, Eisert, and Briegel [M. Hein, J. Eisert, H.J. Briegel, Phys. Rev. A 69 (2004) 062311].Junta de Andalucía P06-FQM-02243Ministerio de Ciencia e Innovación FIS2008-05596Junta de Andalucía PAI-FQM-0239Junta de Andalucía P06-FQM-01649Ministerio de Educación y Ciencia MTM2008-05866-C03-01Junta de Andalucía PAI-FQM-016