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Llengua, educació, vida : Jordi Monés i el català a l’escola

  • Agulló Díaz, María del Carmen
-M.Carmen.Agullo@uv.es
Proyecto:


Value of recN sequences for species identification and as a phylogenetic marker within the family “Leuconostocaceae”

  • Arahal, David R.
  • Sánchez, Ester
  • Macián Rovira, M. Carmen
  • Garay Auban, Esperanza
The genera Leuconostoc, Oenococcus, and Weissella (family “Leuconostocaceae”) constitute a group of lactic acid bacteria of great interest in food microbiology. From the taxonomic point of view, they are considered phylogenetically coherent according to their 16S rRNA gene sequences and other macromolecules. These three genera were the focus of the present study; specifically, the resolution and discriminatory power of recN (encoding a DNA repair and genetic recombination protein) as a molecular marker at the species level were investigated. For this purpose, partial sequences (about 1200 nt) were obtained from 23 type strains and from several additional strains following direct amplification of recN and subsequent sequencing. Phylogeny was evaluated according to different treeing methods (neighbor joining, maximum likelihood, and maximum parsimony) and the inclusion of variability filters. The results showed that recN, used either alone or in combination with 16S rRNA data, can serve as a phylogenetic marker as well as a tool for species identification., Macian Rovira, M. Carmen, M.Carmen.Macian@uv.es ; Garay Auban, Esperanza, Esperanza.Garay@uv.es
Proyecto:


El espejo de la ekphrasis : Más acá de la imagen. Más allá del texto.

  • Calle, Román de la, 1942-
Desde la Segunda Sofística la ekphrasis, descripción literaria de las imágenes, ha sido asimilada. Este trabajo propone una nueva ekphrasis desde la crítica de arte, en un alegato a favor de la descripción, ya sea como elemento constitutivo de la crítica o como recurso propedéutico. También se estudiará la hypotiposis, como el proceso de conformación de la imagen pictórica por medio de las palabras. Tanto la ekphrasis como la hypotiposis tienen su base en la descripción. Desde la mirada de la crítica se vinculan tres aspectos sobre el desarrollo de la ekphrasis. En primer lugar, el autor se ocupa de la relación entre lo descriptivo y lo narrativo; en segundo lugar, de los intercambios entre títulos y obras; y, por último, señala las tensiones entre las funciones de la descripción y de la interpretación. Se discutirá la vigencia de la ekphrasis frente al hecho artístico contemporáneo, tomando en consideración el principio de incompletud de G.C. Argan y el principio de transparencia de S. Sontag. La relación entre imagen y texto es entendida como un doble camino de paralelismos y entrecruzamientos que constituye parte del fundamento epistemológico de la crítica., Since the Second Sophistry the ekphrasis, the literary description of images, has been assimilated. From the point of view of art criticism the author of this work proposes a new ekphrasis in a defense of description, like a constitutive element of criticism or propedeutic resource. The hypotiposis, the formation of pictorial images through words, will be also studied. In the base of the ekphrasis, as in the hypotiposis, is the description. This work leads us through three related aspects of the development of the ekphrasis: the relations between description and narration; the exchanges between titles and works; and finally, the tensions between the descriptive and interpretative functions. The validity of the ekphrasis in front of the contemporary artistic experience will be discussed considering the incompleteness principle of G.C. Argan and the principle of the transparence of S. Sontag. The connection between image and text, understood as a crossroad full of parallelisms, is taken as a fundamental part of the epistemology of criticism., -calle@uv.es
Proyecto:


Saccharomyces cerevisiae Rds2 transcription factor involvement in cell wall composition and architecture

  • Moreno Gimeno, Inmaculada
  • Tutrone, Nuncia
  • Sentandreu Ramon, Rafael
  • Valentín Gómez, Eulogio
Although the cell wall is very important in yeasts, relatively little is known about the relationship between its structure and function. In Saccharomyces cerevisiae, a family of 55 transcription factor proteins unique to fungi, so-called zinc cluster proteins, has been described. Of these, Rds2 has been identified as an activator/inhibitor of gluconeogenesis. However, previous studies have pointed out additional roles for this protein, specifically, in the modulation of cell-wall architecture and drug sensitivity. In this work, evidence regarding the role of Rds2 as a regulator of cell-wall architecture and composition is presented based on phenotypical analysis of the cell walls prepared from a S. cerevisiae Rds2 mutant strain. Analyses of the sensitivity of this rds2Δ mutant to different drugs and to osmotic stress showed that Rds2 is indeed involved in the drug-sensitivity response and plays a role in determining osmotic sensitivity., Moreno Gimeno, Inmaculada, Inmaculada.Moreno@uv.es ; Sentandreu Ramon, Rafael, Rafael.Sentandreu@uv.es ; Valentin Gomez, Eulogio, Eulogio.Valentin@uv.es
Proyecto:


Massive presence of insertion sequences in the genome of SOPE, the primary endosymbiont of the rice weevil Sitophilus oryzae

  • Gil García, Rosario
  • Belda Cuesta, Eugenio
  • Gosalbes Soler, María José
  • Delaye, Luis
  • Vallier, Agnès
  • Vincent-Monégat, Carole
  • Heddi, Abdelaziz
  • Silva Moreno, Francisco J.
  • Moya, Andrés
  • Latorre, Amparo
Bacteria that establish an obligate intracellular relationship with eukaryotic hosts undergo an evolutionary genomic reductive process. Recent studies have shown an increase in the number of mobile elements in the first stage of the adaptive process towards intracellular life, although these elements are absent in ancient endosymbionts. Here, the genome of SOPE, the obligate mutualistic endosymbiont of rice weevils, was used as a model to analyze the initial events that occur after symbiotic integration. During the first phases of the SOPE genome project, four different types of insertion sequence (IS) elements, belonging to well-characterized IS families from γ-proteobacteria, were identified. In the present study, these elements, which may represent more than 20% of the complete genome, were completely characterized; their relevance as a source of gene inactivation, chromosomal rearrangements, and as participants in the genome reductive process are discussed herein., Gil Garcia, Rosario, Rosario.Gil@uv.es ; Belda Cuesta, Eugenio, Eugenio.Belda@uv.es ; Gosalbes Soler, Maria Jose, Maria.Jose.Gosalbes@uv.es ; Delaye, Luis, Luis.Delaye@uv.es ; Silva Moreno, Francisco J., Francisco.Silva@uv.es ; Moya Simarro, Andres, Andres.Moya@uv.es ; Latorre Castillo, Amparo, Amparo.Latorre@uv.es
Proyecto:


La crisis gremial y los problemas de la sedería valenciana (finales del siglo XVIII y principios del siglo XIX)

  • Díez Rodríguez, Fernando
La reforma del sistema gremial alcanza una de sus medidas más radicales con la abolición de los gremios de torcedores de seda en 1793. En estas páginas se analiza la medida abolicionista en el marco general de los problemas de la sedería valenciana. En la misma, la hilatura, de la que el torcido es su fase superior y última, había llegado a constituirse en un cuello de botella que comprometía su futuro. En los años aquí contemplados, se proponen y ensayan diversas alternativas que solucionen las disfunciones que generaba la peculiar división del trabajo que obraba en la sedería. La no implicación del capital comercial de la ciudad en la necesaria reconversión de la hilatura será un factor capital para explicar el fracaso de las acciones encaminadas a proporcionar a los telares hilos abundantes, baratos y de buena calidad. A su vez, la ausencia de reordenación del hilado es una de las razones que explican que, finalmente, sea la propia burguesía comercial la que se manifieste totalmente en contra de la medida antigremial decretada desde la Corte., The reform of the craft guild system in Spain, encouraged by the enlightened reformism of the second half of the eighteenth century, reached one of its most radical moments with the abolition of the Guild of Silk Throwsters in 1793. In this essay we look into the effects and reactions that this measure unleashed inside the important silk sector in the city of Valencia. Spinning, whose last and most skilled stage was throwing, had become a bottle-neck which put in jeopardy the future of an economic activity of vital importance for the urban population and economy. The abolition of this guild had the twofold effect of bringing to light the deep-seated troubles which were plaguing work organization in spinning, and disclosing the complex position of merchant capital in the silk trade. Valencian commercial bourgeoisie did not get involved in the much-needed reconversion of spinning. This is an essential factor to explain the failure of all the measures designed to provide the mills with cheap, good-quality yarn in large quantities. Furthermore, the absence of a restructuring of spinning is one of the reasons which accounts for the fact that the commercial bourgeoisie itself ended up maintaining a frontal opposition to this anti-guild decree issued by the Royal Court., fdiezr@uv.es
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La política presupuestaria de la Dictadura de Primo de Rivera: ¿una reconsideración necesaria?

  • Palafox Gamir, Jorge
La política económica desarrollada por la dictadura del general Primo de Rivera ha sido objeto, durante los últimos años, de una atención considerable. Desde que el profesor Velarde publicara su pionera aportación, numerosos especialistas han abordado, desde distintas perspectivas y con una valoración también divergente, el estudio de las principales medidas económicas adoptadas por el régimen autoritario durante los siete años en que estuvo en el poder. En todas ellas, sin embargo, se ha tendido a reconocer una importancia notable a la gestión de las finanzas públicas. Bien para destacar su relevancia en el crecimiento de la renta, bien para criticar el marasmo financiero que Calvo Sotelo provocó, la política presupuestaria ha constituido uno de los elementos clave en la valoración del período que transcurre entre septiembre de 1923 y enero de 1930, y más concretamente entre diciembre de 1925 y el 20 de enero de 1930, etapa en la que Calvo Sotelo estuvo al frente del Ministerio de Hacienda., jpalafox@uv.es
Proyecto:


A quantum mechanics-molecular mechanics study of dissociative electron transfer : The methylchloride radical anion in aqueous solution

  • Soriano, Alejandro
  • Silla Santos, Estanislao
  • Tuñón, Iñaki
The dissociative electron transfer reaction CH3Cl+e−→CH3•+Cl− in aqueous solution is studied by using a QM/MM method. In this work the quantum subsystem (a methylchloride molecule plus an electron) is described using density functional theory while the solvent (300 water molecules) is described using the TIP3P classical potential. By means of molecular dynamics simulations and the thermodynamic integration technique we obtained the potential of mean force (PMF) for the carbon–chlorine bond dissociation of the neutral and radical anion species. Combining these two free energy curves we found a quadratic dependence of the activation free energy on the reaction free energy in agreement with Marcus’ relationship, originally developed for electron transfer processes not involving bond breaking. We also investigated dynamical aspects by means of 60 dissociative trajectories started with the addition of an extra electron to different configurations of a methylchloride molecule in solution. The PMF shows the existence of a very flat region, in which the system is trapped during some finite time if the quantum subsystem quickly losses its excess kinetic energy transferring it to the solvent molecules. One of the most important factors determining the effectiveness of this energy transfer seems to be the existence of close contacts (hydrogen bonds) between the solute and the solvent., Estanislao.Silla@uv.es Ignacio.Tunon@uv.es
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History and services of culture collections

  • Uruburu Fernandez, Federico
Microbial culture collections aim at collecting, maintaining and distributing microbial strains among microbiologists, and are considered to be a means to preserve microbial diversity ex situ. This article reviews the early history of culture collections, which were first set up in the late nineteenth century, with the introduction of pure culture techniques. It also describes the international connections between culture collections, which led to the foundation of the World Federation for Culture Collections (WFCC) and the International Congress of Culture Collections (ICCC). An overview of the Spanish Type Culture Collection (CECT) is included, as well as a description of the services that culture collections can offer., Uruburu Fernandez, Federico, Federico.Uruburu@uv.es
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