3,439 research outputs found

    Sobre el tema de la informática en la industria de la construcción

    Get PDF
    Peer reviewe

    Rebel Governance as State-Building? Discussing the FARC-EP's Governance Practices in Southern Colombia

    Get PDF
    Rebel governance practices are often conflated with state-building, as if the former were the embryonic stages of the latter. This association is not necessarily accurate. Some rebels do not aim at replacing the state with another of their own. It also fails to reflect the complex configuration of political power in conflict areas. I comparatively analyze the governance practices of the FARC-EP in six villages in Colombia. Considering the state's presence in those territories and the social background of both rebels and their constituencies, I describe two broad patterns: armed advocacy and substitute state. In none of the cases was the state completely challenged, and there were many overlaps as the rebels used the state structure to advance their cause, in the process inadvertently expanding the infrastructural power of the State they confronted. It is only in this sense that the FARC-EP could be described as unconsciously contributing to state-building, not in the sense that through their governance practices they were laying the foundations for their own state apparatus. This hybrid and ambiguous situation illustrate the importance of understanding the overlapping regimes of territorial authority in conflict situations, as opposed to expecting clear-cut boundaries and monopolies (of violence, power) that rarely occur

    Luz blanca en la normativa española como mejora de la sostenibilidad

    Get PDF
    En la actualidad, en nuestro país debido al índice de reproducción cromática en las lámparas del alumbrado exterior, el color que suelen presentar es un color amarillento, lo cual puede tener graves consecuencias en la seguridad de los ciudadanos al distorsionar algunos aspectos de la realidad. Es por este motivo que pretendemos resaltar las bondades que presenta la luz blanca, como la mejora de la eficiencia energética o en el comportamiento de los usuarios a la hora de aprovechar los espacios públicos en horarios nocturnos. Para asegurarnos que la introducción de la Luz Blanca en la normativa no presenta inconvenientes, esta investigación se presenta dividida en tres campos diferentes: Crimen, Seguridad Vial y Eficiencia Energética, con el propósito de evaluar el mayor número de factores que afectan al alumbrado exterior

    Eficiencia energética del alumbrado exterior en España

    Get PDF
    El alumbrado público en España representa entre un 40% y 60 % del total del consumo eléctrico de las ciudades, lo que supone unos gastos de electricidad y mantenimiento en torno a los 1.200 millones de euros al año. Sin embargo, los avances realizados en esta materia pueden ayudar a reducir este consumo energético hasta en un 45%. Si echamos un vistazo al resto de los países de la Unión Europea, podemos comprobar como España es el país que presenta un mayor consumo energético en alumbrado exterior por habitante, llegando a duplicar el valor de países como Alemania o Reino Unido. Por este motivo pretendemos realizar un pequeño análisis sobre el estado de nuestras instalaciones, para lo cual realizaremos una comparación con uno de los países más eficientes de la Unión Europea, el Reino Unido. Esta comparación nos ayudará a analizar algunos de los aspectos que consideramos que han sido pasados por alto en la normativa de eficiencia energética de alumbrado exterior de España, los cuales podrían suponer un aumento en la eficiencia de nuestros sistemas de alumbrado, con el correspondiente ahorro energético que esto podría conllevar

    Genomic analysis of eight native plasmids of the phytopathogen Pseudomonas syringae

    Get PDF
    Comunicación a conferenciaThe pPT23A family of plasmids (PFPs) appears to be indigenous to the plant pathogen Pseudomonas syringae and these plasmids are widely distributed and widely transferred among pathovars of P. syringae and related species. PFPs are sources of accessory genes for their hosts that can include genes important for virulence and epiphytic colonization of plant leaf surfaces. Further understanding of the evolution of the pPT23A plasmid family and the role of these plasmids in P. syringae biology and pathogenesis, requires the determination and analysis of additional complete, closed plasmid genome sequences. Therefore, our main objective was to obtain complete genome sequences from PFPs from three different P. syringae pathovars and perform a comparative genomic analysis. In this work plasmid DNA isolation, purification by CsCl-EtBr gradients, and sequencing using 454 platform, were used to obtain the complete sequence of P. syringae plasmids. Different bioinformatic tools were used to analyze the plasmid synteny, to identify virulence genes (i.e. type 3 effectors) and to unravel the evolutionary history of PFPs. Our sequence analysis revealed that PFPs from P. syringae encode suites of accessory genes that are selected at different levels (universal, interpathovar and intrapathovar). The conservation of type IVSS encoding conjugation functions also contributes to the distribution of these plasmids within P. syringae populations. Thus, this study contributes to unravel the genetic basis of the role of PFPs in different P. syringae lifestyles.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Modeling at farm level: Positive Multi-Attribute Utility Programming

    Get PDF
    This article proposes a new mathematical programming model for the simulation of farmers’ decision-making. We have developed a model based on a multi-attribute utility approach that takes into consideration the most relevant attributes of farmers within a positive framework. This approach overcomes the limitations found in some mathematical models used in the literature to simulate farmers’ behavior. A five-step procedure is presented in order to elicit the utility function that reproduces farmers’ current decision-making. We illustrate this positive multi-attribute approach using a sample of farmers in an irrigated area in southern Spain, where our simulations demonstrate the accurateness of the model in reproducing actual farmers’ decision-making. We also find evidence that the model is able to explain the heterogeneous behavior of farmers within a homogeneous agricultural syste

    Isolation, characterization and selection of bacterial isolates from a suppressive soil with beneficial traits to plants

    Get PDF
    Backgrounds This study focused on the characterization and selection of bacterial strains obtained from a suppressive soil displaying antifungal activity against the soilborne phytopathogenic fungi Rosellinia necatrix. Bacterial profile from this suppressive soil were first obtained by 16S rRNA gene sequencing, revealing a significant increase in the bacterial class Gammaproteobacteria, especially in some antagonistic representatives of Pseudomonas spp. Objectives To obtain and characterize a collection of 246 bacterial isolates obtained from this suppressive soil, in order to identify new strains with antifungal activity against fungal phytopathogens. Methods To obtain the bacterial collection, we performed an isolation on a selective medium for Pseudomonas-like microorganisms. Further characterization tests were used in order to analyse the bacterial collection, including identification of the general metabolic profile of glucose, the profiling of antifungals produced, including both the putative production of antifungal compounds and lytic exoenzymes, and the evaluation of traits related with beneficial effects on plants. Conclusions A final selection of representative strains resulted in antifungal isolates belonging to the genus Pseudomonas, but also some representatives of the genera Serratia and Stenotrophomonas. These selected strains were tested for plant protection by an in vivo experiment using avocado and wheat plants challenged by the pathogen R. necatrix, showing all of them an antifungal ability and plant disease protection. Pseudomonas-like strains isolated from suppressive soils constitute an excellent source for novel microbial biocontrol agents against soilborne fungal pathogens. This work was supported by grant AGL2014-52518-C2-1-R. Carmen Vida and Sandra Tienda are supported by a PhD fellowship from the FPI program of the Spanish Government.This work was supported by grant AGL2014-52518-C2-1-R. Carmen Vida and Sandra Tienda are supported by a PhD fellowship from the FPI program of the Spanish Government; Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Comments on "global and regional comparison of daily 2-m and 1000-hPa maximum and minimum temperatures in three global reanalyses"

    Get PDF
    Pitman and Perkins claimed that instantaneous 2-m air temperatures from different reanalysis products largely disagree over widespread regions of the globe and that, because of their much smaller differences, temperatures at 1000 hPa should be preferably used. This comment shows that this claim is based on erroneous results. © 2012 American Meteorological Society.S.B. would like to thank the 'Consejo Superior de Investigaciones Científicas' (CSIC) pre- doctoral program 'JAE-PREDOC' for funding.Peer Reviewe
    corecore