La balsa del Barranco del Juncaret (Mutxamel) y otras estructuras hidráulicas de época romana del territorium de Lucentum (Tossal de Manises, Alacant)

Presentamos las conclusiones finales de las campañas de excavación arqueológica realizadas en la balsa de época romana situada en el barranco del Juncaret (término municipal de Mutxamel) y su posible funcionalidad, así como otras estructuras hidráulicas también de época romana localizadas en los alrededores

Quantum coherence enfeebled by classical uncertainties

The fundamental indication of the departure of quantum mechanics from the classical world is the so-called quantum coherence. Typically, we define it as the characteristic of systems which are in a superposition of states yielding interference patterns in certain kinds of experiments. In addition to its captivating philosophical implications, quantum coherence turned out to be a valuable tool in different areas, ranging from quantum information to biology, where it was used to describe several fundamental processes. Here, we go one step further to study how classical uncertainties in a mixture of similar states reduce quantum coherence in quantum scattering theory. To this end, we deal with different examples, all of them with roots in the widely studied Feynman's two-slit thought experiment. We finally propose an operational and intuitive definition of the concept of coherence length whose implications largely transcend the simplicity of the corresponding mathematical development, as it is demonstrated when applied to the analysis of some recent atomic and molecular processes.Fil: Barrachina Tejada, Raul Oscar. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Navarrete, F.. Universität Rostock; AlemaniaFil: Ciappina, M. F.. Technion - Israel Institute of Technology; Israe

Tucumanin, a β-hydroxy-γ-lactone bistetrahydrofuranic acetogenin from Annona cherimolia, is a potent inhibitor of mitochondrial complex I

A new β-hydroxy-γ-methyl-γ-lactone bistetrahydrofuranic acetogenin, tucumanin, with the infrequent symmetrical threo/trans/threo/trans/ threo relative configuration at the tetrahydrofuran rings was isolated from Annona cherimolia (Annonaceae) seeds. The inhibitory potency on the mitochondrial complex I of acetogenins with this relative configuration (tucumanin and asimicin) was compared with that shown by the corresponding pairs with an asymmetrical threo/trans/threo/trans/erythro relative configuration (laherradurin/rolliniastatin-2, and itrabin/molvizarin). All these compounds act as selective inhibitors of mitochondrial complex 1 in the 0.18 - 1.55 nM range.Fil: Barrachina, Isabel. Universidad de Valencia; EspañaFil: Neske, Adriana. Universidad Nacional de Tucumán; ArgentinaFil: Granell, Susana. Universidad de Valencia; EspañaFil: Bermejo, Almudena. Universidad de Valencia; EspañaFil: Chahboune, Nadia. Universidad de Valencia; EspañaFil: El Aouad, Noureddine. Universidad de Valencia; EspañaFil: Alvarez, Olga. Universidad Nacional de Tucumán; ArgentinaFil: Bardon, Alicia del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina. Universidad Nacional de Tucumán; ArgentinaFil: Zafra Polo, M. Carmen. Universidad de Valencia; Españ

El que portem entre mans. Assaig tipològic de recipients domèstics del segle IX al VI ANE als Ports i l'Alt Maestrat

Presentem en aquest treball un estudi sobre el conjunt de ceràmiques amb una cronologia que va des del Bronze Final fins al Ferro Antic. Els materials procedeixen de les excavacions portades a terme en les comarques d’Els Ports i de l’Alt Maestrat, dintre del marc del Pla Eòlic Valencià. En total s’han estudiat 208 peces, utilitzant les formes més completes. L’objectiu principal és establir una tipologia del Bronze Final-Ferro Antic per aquestes comarques del nord-est de Castelló, que limiten amb Aragó i Catalunya.We present in this work a study on the series of ceramics with a chronology that goes from the late Bronze to the old-Iron age. The materials come from the excavations carried out in the regions of the Ports and of the Alt Maestrat, within the framework of the Pla Eòlic Valencià. A total of 208 fragments were analysed, usingusing only the largest ones. The main objective is to establish a typology of the Final Bronze age-old-Iron age in the regions of the north-east of Castelló, bordering with Aragón and Cataluny

Formability of the 5754-aluminum alloy deformed by a modified repetitive corrugation and straightening process

Sheets of 5754-aluminum alloy processed by a modified repetitive corrugation and straightening (RCS) process were tested in order to measure their formability. For this purpose, forming limit curves were derived. They showed that the material forming capacity decreased after being processed by RCS. However, they kept good formability in the initial stages of the RCS process. The formability study was complemented with microstructural analysis (derivation of texture) and mechanical tests to obtain the strain-rate sensitivity. The texture analysis was done by employing X-ray diffraction, obtaining pole figures, and the orientation distribution function. It was noticed that the initial texture was conserved after successive RCS passes, but the intensity dropped. RCS process did not induce ß-fiber, contrary to common deformation process. The strain-rate sensitivity coefficient was measured through tensile tests at different temperatures and strain rates; the coefficient of the samples processed after one and two passes were still relatively high, indicating the capacity to delay necking, in agreement with the good formability observed in the initial passes of the RCS processPeer ReviewedPostprint (published version

Excavaciones en el Grau Vell

Noticias preliminares de la campaña de 1983

El yacimiento arqueológico de Orpesa la Vella (Oropesa del Mar, Castellón). Resultados de las campañas de 2005 a 2008 y su contextualización

Tras un breve resumen de la primera etapa de intervenciones, se presentan los resultados de las campañas de excavación realizadas entre los años 2005 y 2008 en el yacimiento arqueológico de Orpesa la Vella (Oropesa del Mar, Plana Alta, Castellón). Finalmente se efectúa un ensayo de contextualización completa de la secuencia del yacimiento.First we present a brief summary of the interventions carried out previously in the archaeological site of Orpesa la Vella (Oropesa del Mar, Plana Alta, Castellón). Subsequently, the results of the excavation campaigns carried out between 2005 and 2008 are presented. Finally, we try to make a contextualization of the complete archaeological sequence

Development of a glass-ceramic glaze formulated from industrial residues to improve the mechanical properties of the porcelain stoneware tiles

In this research a mixture of 90%wt of industrial residues (recycled soda-lime glass and ashes from a coalpower thermal plant) have been vitrified for their use as ‘‘secondary raw material”. Then, a glaze suspen-sion was prepared to be applied on the porcelain stoneware tile. The tested pieces have been fired by aconventional porcelain cycle at 1180 °C of maximum temperature. The XRD, XRF, SEM/EDS and thedilatometric analysis have been the instrumental techniques used to characterize the material. Finally,an ecological glass-ceramic glaze perfectly fitting on porcelain ceramic tile has been produced, exhibitinga unique phase, anorthite, which ensures a high flexural strength (around 96 MPa) and a significantVickers microhardness of 250 GPa, improving the mechanical properties of a conventional the porcelainceramic tile