Quarkophobic W' for LHC searches

We consider a simplified model where a W' boson is added to the standard model with negligible couplings to quarks, but generic couplings to leptons and electroweak bosons. We study the implications of such a model for LHC searches. Consequently, we propose an LHC search through the vector boson fusion topology which would have sensitivity for such a new particle with the current proton-proton collisions's energy and available luminosity.Comment: FPCP 2022 proceeding

Innovation and governance of the cannabis crop value chain

In this contribution, we present an overview of the organization and positionings of the cannabis value chain in Europe and the USA. As a first step, attention will be given to the development of the cannabis industry and its main regulatory framework on both sides of the Atlantic. As an emerging and fast-developing value chain, consideration will be given to the research and innovation networks identified through bibliometric analysis. The contribution finalizes by reporting on the future steps to assess the main enabling and blocking drivers for the development of the cannabis value chain, understood as an innovative value chain where various actors interact within this highly regulated agricultural sector

The Mono-Tau Menace: From BB Decays to High-pTp_T Tails

We investigate the crossing-symmetry relation between $b\to c\tau^-\bar\nu$ decay and $b\bar c\to \tau^-\bar\nu$ scattering to derive direct correlations of New Physics in semi-tauonic $B$-meson decays and the mono-tau signature at the LHC ($pp\to\tau_h X$ + MET). Using an exhaustive set of effective operators and heavy mediators we find that the current ATLAS and CMS data constrain scenarios addressing anomalies in $B$-decays. Pure tensor solutions, completed by leptoquark, and right-handed solutions, completed by $W^\prime_R$ or leptoquark, are challenged by our analysis. Furthermore, the sensitivity that will be achieved in the high-luminosity phase of the LHC will probe $all$ the possible scenarios that explain the anomalies. Finally, we note that the LHC is also competitive in the $b\to u$ transitions and bounds in some cases are currently better than those from $B$ decays.Comment: No comment

Actas del Taller de Trabajo Zoco’08 / JISBD Integración de Aplicaciones Web : XIII Jornadas de Ingeniería del Software y Bases de Datos Gijón, 7 al 10 de Octubre de 2008

Ministerio de Educación y Ciencia TIN2007-64119Junta de Andalucía P07-TIC-0260

Capability of different microalgae species for phytoremediation processes: Wastewater tertiary treatment, CO2 bio-fixation and low cost biofuels production.

Scenedesmus obliquus, Chlorella vulgaris, Chlorella kessleri and a natural Bloom were cultivated in batch experiments, under controlled conditions, in urban wastewater (WW) and synthetic wastewater (SW) under 5% CO2 in air, with the object of estimating their capacity for nutrient removal, carbon dioxide biofixation, and generation of valuable biomass. In both culture media, the Bloom (Bl) and Scenedesmus (Sc) showed higher final biomass concentration (dried weight, dw) than the other species; the maximum yield obtained was 1950 ± 243 mg L−1 for Bl and the minimum 821 ± 88 mg L−1 for Cv, both in synthetic wastewater. Maximum specific growth rate values do not show significant differences between any of the 4 strains tested (p ≤ 0.05), nor between the 2 culture media. A new homogeneous method of calculating productivities has been proposed. Nitrogen removal in all the reactors was higher than 90%, except for BlSW (79%), and for phosphorus, the removal was higher than 98% in all trials. Maximum CO2 consumption rates reached were 424.4 and 436.7 mg L−1 d−1 for ScSW and ScWW respectively

Mejoramiento de la seguridad en las elecciones de la Universidad de Córdoba mediante un sistema de votaciones basado en tecnología Blockchain

The purpose of this research was to improve the security, transparency and accessibility of the electoral process for an electronic voting system in the elections of student representatives at the University of Cordoba, through the implementation of Blockchain technologies. A methodological process was followed that included the following phases: analysis of the election regulations, the specification of necessary requirements, the exploration and selection of those tools necessary for the construction of the software using Vue.js, MySQL, and Blockchain technology based on Smart Contracts in the Ethereum network, and finally as the last phase, the electronic voting system was designed and developed. The work sought to demonstrate the reliability and usefulness of e-voting in a university context, overcoming the problems associated with traditional methods of electoral voting by reducing the risks of fraud or manipulation of results, thanks to Blockchain technologies. As a result, three crucial levels of security are highlighted to guarantee the integrity of the electoral process: an authentication through email validation, AES and bcrypt encryption in the database to protect sensitive data, and the implementation of Blockchain to ensure the immutability of votes, preserve voter privacy and provide transparency in the electoral process. These combined measures guarantee a high standard of security and confidentiality. Finally, as for the results regarding the tests, a digital survey was conducted to gather valuable information about the students' opinion regarding the experience and security about the electronic voting system.El propósito de esta investigación fue mejorar la seguridad, transparencia y accesibilidad del proceso electoral para un sistema de votación electrónica en las elecciones de representantes estudiantiles de la Universidad de Córdoba, mediante la implementación de tecnologías Blockchain. Se siguió un proceso metodológico que incluyó las siguientes fases: análisis de la normatividad de las elecciones, la especificación de requisitos necesarios, la exploración y selección de aquellas herramientas necesarias para la construcción del software utilizando Vue.js, MySQL, y tecnología Blockchain basada en Contratos inteligentes en la red de Ethereum, y finalmente como última fase, se diseñó y desarrolló el sistema de votación electrónica. El trabajo buscaba demostrar la confiabilidad y utilidad de la votación electrónica en un contexto universitario, supliendo los problemas asociados con los métodos tradicionales de votación electoral al aminorar riesgos de fraude o manipulación de resultados, gracias a las tecnologías Blockchain. Como resultante se destacan tres niveles cruciales de seguridad para garantizar la integridad del proceso electoral: una autenticación mediante validación de email, encriptación AES y bcrypt en la base de datos para proteger datos sensibles, y la implementación de Blockchain para asegurar la inmutabilidad de los votos, preservar la privacidad del votante y proporcionar transparencia en el proceso electoral. Estas medidas combinadas garantizan un alto estándar de seguridad y confidencialidad. Finalmente, en cuanto a los resultados respecto a las pruebas, se realizó una encuesta digital para reunir información valiosa sobre la opinión de los estudiantes con respecto a la experiencia y seguridad sobre el sistema de votación electrónica

Effect of nitrogen and phosphorus concentration on their removal kinetic in treated urban wastewater by Chlorella vulgaris.

This study evaluates the feasibility of removing nutrients by the microalgae Chlorella vulgaris, using urban wastewater as culture medium, namely the effluent subjected to secondary biological treatment in a wastewater treatment plant (WWTP). For this, laboratory experiments were performed in batch cultures to study the effect of initial nitrogen and phosphorus concentrations on growth and reduction of nutrient performance of C. vulgaris. The microalga was cultivated in enriched wastewater containing different phosphorus (1.3– 143.5 mg · L−1 P-PO3− 4), ammonium (5.8–226.8 mg · L−1 N–NH+ 4) and nitrate (1.5– 198.3 mg · L−1 N–NO− 3) concentrations. The nutrient removal and growth kinetics have been studied: maximum productivity of 0.95 g SS · L−1 · day−1, minimum yield factor for cells on substrate (Y) of 11.51 g cells · g nitrogen−1 and 0.04 g cells · g phosphorus−1 were observed. The results suggested that C. vulgaris has a high potential to reduce nutrients in secondary WWTP effluents

Effect of ph control by means of flue gas addition on three different photo-bioreactors treating urban wastewater in long-term operation.

Effect of pH control with flue gas has been studied in two high rate algal ponds (HRAPs), one with a carbonation sump station (HRAP + S), and a tubular airlift photobioreactor (TPBR) treating urban wastewater. Flue gas, from 1600 MW combined cycle plant, addition (4–5% volume CO2) not only increased biomass productivity but also improved efficiency of total nitrogen removal (TNRE) and total phosphorus removal (TPRE). The differences between the HRAP and HRAP + S were significant at all the flue gas injection flow rates tested. HRAP + S reached maximum TNRE, TPRE and biomass productivity (92.15 ± 1.45%, 95.10 ± 0.84% and 19.77 ± 0.38 g m−2 d−1, respectively) at a flow rate of 15 L min−1, while the HRAP reached similar productivity levels at 20 L min−1. TPBR showed an initial lower carbon limitation than HRAP and HRAP + S, but nevertheless a strong inhibition was observed in TPBR at the end of the test. Flue gas addition promotes the production of biomass with less nitrogen reserves and consequently with higher lipid content because of the nutrient limitation stress

Comparison of the detection of periodontal pathogens in bacteraemia after tooth brushing by culture and molecular techniques

Background: The prevalence and amounts of periodontal pathogens detected in bacteraemia samples after tooth brushing-induced by means of four diagnostic technique, three based on culture and one in a molecular-based technique, have been compared in this study. Material and Methods: Blood samples were collected from thirty-six subjects with different periodontal status (17 were healthy, 10 with gingivitis and 9 with periodontitis) at baseline and 2 minutes after tooth brushing. Each sample was analyzed by three culture-based methods [direct anaerobic culturing (DAC), hemo-culture (BACTEC), and lysis-centrifugation (LC)] and one molecular-based technique [quantitative polymerase chain reaction (qPCR)]. With culture any bacterial isolate was detected and quantified, while with qPCR only Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans were detected and quantified. Descriptive analyses, ANOVA and Chi-squared tests, were performed. Results: Neither BACTEC nor qPCR detected any type of bacteria in the blood samples. Only LC (2.7%) and DAC (8.3%) detected bacteraemia, although not in the same patients. Fusobacterium nucleatum was the most frequently detected bacterial species. Conclusions: The disparity in the results when the same samples were analyzed with four different microbiological detection methods highlights the need for a proper validation of the methodology to detect periodontal pathogens in bacteraemia samples, mainly when the presence of periodontal pathogens in blood samples after tooth brushing was very seldom