95 research outputs found
Educational Warehouse: Modular, Private and Secure Cloudable Architecture System for Educational Data Storage, Analysis and Access
[Abstract] Data in the educational context are becoming increasingly important in decision-making and teaching-learning processes. Similar to the industrial context, educational institutions are adopting data-processing technologies at all levels. To achieve representative results, the processes of extraction, transformation and uploading of educational data should be ubiquitous because, without useful data, either internal or external, it is difficult to perform a proper analysis and to obtain unbiased educational results. It should be noted that the source and type of data are heterogeneous and that the analytical processes can be so diverse that it opens up a practical problem of management and access to the data generated. At the same time, ensuring the privacy, identity, confidentiality and security of students and their data is a “sine qua non” condition for complying with the legal issues involved while achieving the required ethical premises. This work proposes a modular and scalable data system architecture that solves the complexity of data management and access. On the one hand, it allows educational institutions to collect any data generated in both the teaching-learning and management processes. On the other hand, it will enable external access to this data under appropriate privacy and security conditions.Generalitat de Catalunya; 2017 SGR 93
Prevalence of Toxoplasma gondii in Endangered Wild Felines (Felis silvestris and Lynx pardinus) in Spain
The wildcat (Felis silvestris) and the Iberian lynx (Lynx pardinus) are important species in Spain, considered as near-threatened and endangered, respectively. Both can be infected by Toxoplasma gondii, a parasite that can cause morbidity and mortality in transplacentally-infected or immunocompromised mammals. The data on the prevalence of this parasite in wild populations of these species in Spain are outdated. The objective of this study was to update information and evaluate the role of these felines in parasite epidemiology and the potential impact of the parasite on their conservation. Blood and fecal samples were collected from captured animals, as well as the tongue, diaphragm, and spleen, from animals killed in road accidents in central Spain. An indirect fluorescent antibody test (IFAT) was used to detect parasite antibodies in serum, microscopy and molecular analysis were used to detect oocysts in feces, and molecular analysis was used to determine the existence of tissue cysts. Seroprevalence was 85% in wildcats and 45% in lynx, and parasite DNA was detected in the feces of one wildcat and in tissue samples from 10 wildcats and 11 Iberian lynxes. These results highlight the epidemiological importance and high risk of T. gondii infection in animals and humans in the studied areas. Considering feline susceptibility to infection, monitoring programs are needed to assess the health status of wild felines.This research was partially funded by Alfonso X el Sabio Foundation, project number 1.010.119 and Health Research Fund, Instituto de Salud Carlos III, Ministry of Science and Innovation, project FIS AESI PI21CIII/00031.S
Microangiopatía trombótica como manifestación inicial de Lupus Eritematoso Sistémico
The case of a 13-year-old patient attended at the Club Noel Children's Clinic Foundation in the city of Cali, Colombia, between the months of September and November 2018, who presented acute kidney failure that required management with renal replacement therapy, autoimmune hepatitis and thrombotic microangiopathy type atypical hemolytic uremic syndrome (SHUa), events confirmed by liver and kidney biopsy, and positive ADAMTS test 13.
Clinical, diagnostic tests and the multifocal therapeutic approach consisting of renal replacement therapy, steroids, plasmapheresis and immunosuppressants are described.Se presenta el caso de un paciente de 13 años atendida en la Fundación Clínica Infantil Club Noel de la ciudad de Cali, Colombia, entre los meses de septiembre y noviembre del 2018, quien presentó falla renal aguda que requirió manejo con terapia de reemplazo renal, hepatitis autoinmune y microangiopatía trombótica tipo Síndrome Hemolítico Urémico atípico (SHUa), eventos confirmados por biopsia hepática, renal y prueba positiva de ADAMTS 13. Se describen clínica, pruebas diagnósticas y el enfoque terapéutico multifocal consistente en terapia de reemplazo renal, esteroides, plasmaferesis e inmunosupresores
Predictive modeling of poor outcome in severe COVID-19: A single-center observational study based on clinical, cytokine and laboratory profiles
Producción CientíficaPneumonia is the main cause of hospital admission in COVID-19 patients. We aimed to perform an extensive characterization of clinical, laboratory, and cytokine profiles in order to identify poor outcomes in COVID-19 patients. Methods: A prospective and consecutive study involving 108 COVID-19 patients was conducted between March and April 2020 at Hospital Clínico Universitario de Valladolid (Spain). Plasma samples from each patient were collected after emergency room admission. Forty-five serum cytokines were measured in duplicate, and clinical data were analyzed using SPPS version 25.0. Results: A multivariate predictive model showed high hepatocyte growth factor (HGF) plasma levels as the only cytokine related to intubation or death risk at hospital admission (OR = 7.38, 95%CI—(1.28–42.4), p = 0.025). There were no comorbidities included in the model except for the ABO blood group, in which the O blood group was associated with a 14-fold lower risk of a poor outcome. Other clinical variables were also included in the predictive model. The predictive model was internally validated by the receiver operating characteristic (ROC) curve with an area under the curve (AUC) of 0.94, a sensitivity of 91.7% and a specificity of 95%. The use of a bootstrapping method confirmed these results. Conclusions: A simple, robust, and quick predictive model, based on the ABO blood group, four common laboratory values, and one specific cytokine (HGF), could be used in order to predict poor outcomes in COVID-19 patients.Instituto de Salud Carlos III - ( Proyecto COV20/00491)Consejeria de Educación de Castilla y León - (Proyecto VA256P20)Junta de Castilla y León y Fondo Europeo de Desarrollo Regional (FEDER) - (Proyecto EDU/1100/2017
One Health Approach: Invasive California Kingsnake (Lampropeltis californiae) as an Important Source of Antimicrobial Drug-Resistant Salmonella Clones on Gran Canaria Island
The increase in the reptile population has led to a rise in the number of zoonotic infections due to close contact with reptiles, with reptile-associated salmonellosis being particularly relevant. California kingsnake invasion not only threatens the endemic reptile population of the island of Gran Canaria (Spain) but also poses serious public health problems by spreading zoonotic pathogens and their antimicrobial resistance (AMR) to the environment. Thus, the aim of this study was to assess the occurrence, genetic diversity, and AMR among Salmonella spp. strains isolated from California kingsnakes in Gran Canaria Island (Spain). Of 73 invasive individuals captured, 20.5% carried Salmonella spp., belonging to different subspecies and serovars, with subsp. salamae as the most abundant. Pulsed-field electrophoresis showed high genetic diversity among subsp. salamae isolates, and among these, 73.3% showed resistance to at least one of the antimicrobials tested. In conclusion, the present study revealed the importance of wild invasive California kingsnakes as reservoirs of drug-resistant Salmonella spp. that could pose a direct threat to livestock and humans. Identification of drug-resistant Salmonella strains in wildlife provides valuable information on potential routes of transmission that involve risks to public and animal health.This study was supported by the project “POSTLIFE+ Lampropeltis para el control de la culebra real de California en Gran Canaria (LIFE10/NAT/ES/656)” financed by the Government of Canary Islands, Cabildo of Gran Canaria and Universidad Cardenal Herrera-CEU (IDOC 19/15, and INDI 20-21, INDI 22-34).info:eu-repo/semantics/publishedVersio
Seguimiento y mejora de las asignaturas de segundo curso del Grado en Ingeniería Informática durante el curso 2013-2014
En esta memoria se describe el trabajo de la red docente para el seguimiento y control de calidad de las asignaturas del segundo curso del Grado en Ingeniería Informática impartido en la Escuela Politécnica Superior de la Universidad de Alicante. En esta edición, el trabajo de la red se ha centrado en el estudio de las necesidades formativas y los contenidos impartidos en las asignaturas. El resultado ha sido la creación de un grafo de dependencias entre asignaturas de segundo y primer curso (y de segundo curso entre sí), un mapa de necesidades formativas para acceder a las asignaturas de segundo curso y un mapa de los contenidos impartidos en éstas. Asimismo, se ha elaborado un calendario on-line de evaluaciones para el curso 2014-2015
One Health Approach : Invasive California Kingsnake (Lampropeltis californiae) as an Important Source of Antimicrobial Drug-Resistant Salmonella Clones on Gran Canaria Island
The aim of this study was to investigate the invasive species Lampropeltis californiae (California kingsnake) as a reservoir of Salmonella and its ability to spread different clones of the bacterium with zoonotic potential into the environment, as well as study its antimicrobial resistance patterns in Gran Canaria (Spain). The main results showed that a high diversity of Salmonella subsp. salamae strains circulate in Gran Canaria with a high prevalence of resistance shown for antimicrobials of public health importance, as summarised in the European Decision 2013/652/EU. The increase in the reptile population has led to a rise in the number of zoonotic infections due to close contact with reptiles, with reptile-associated salmonellosis being particularly relevant. California kingsnake invasion not only threatens the endemic reptile population of the island of Gran Canaria (Spain) but also poses serious public health problems by spreading zoonotic pathogens and their antimicrobial resistance (AMR) to the environment. Thus, the aim of this study was to assess the occurrence, genetic diversity, and AMR among Salmonella spp. strains isolated from California kingsnakes in Gran Canaria Island (Spain). Of 73 invasive individuals captured, 20.5% carried Salmonella spp., belonging to different subspecies and serovars, with subsp. salamae as the most abundant. Pulsed-field electrophoresis showed high genetic diversity among subsp. salamae isolates, and among these, 73.3% showed resistance to at least one of the antimicrobials tested. In conclusion, the present study revealed the importance of wild invasive California kingsnakes as reservoirs of drug-resistant Salmonella spp. that could pose a direct threat to livestock and humans. Identification of drug-resistant Salmonella strains in wildlife provides valuable information on potential routes of transmission that involve risks to public and animal health
Antibacterial and Antiadhesion Effects of Psidium guajava Fractions on a Multispecies Biofilm Associated with Periodontitis
Objective: To assess the antibacterial activity of Psidium guajava fractions and their effects on adhesion of a multispecies biofilm consisting of Streptococcus gordonii, Fusobacterium nucleatum, and Porphyromonas gingivalis in vitro. Material and Methods: Guava leaves were obtained from the mountains of northern Peru, where they grow wild and free of pesticides. The antimicrobial activity of 25 mg/mL petroleum ether, 25 mg/mL dichloromethane and 25 mg/mL methanol fractions of P. guajava was evaluated by measuring inhibition halos, as well as the effect on the adhesion of multispecies biofilms at 4, 7 and 10 days of growth by measuring the optical density. In addition, antimicrobial susceptibility was compared using the Kruskal-Wallis test and its multiple comparison tests, and differences in mean biofilm adhesion between each fraction were assessed by repeated measures analysis and the Tukey multiple comparison test. Results: The rank-based Kruskal-Wallis test highlighted differences in the effects of the fractions on the zone of inhibition for each oral bacterium, including S. gordonii(p=0.000), F. nucleatum (p=0.000), and P. gingivalis (p=0.000), the Tukey test showed that the group treated with 0.12% chlorhexidine exhibited the least amount of adhesion, followed by the group treated with the 1.56 mg/mL methanol fraction. Conclusion: The methanol fraction of P. guajava had an antibacterial effect on S. gordonii and P. gingivalis, and the 1.56 mg/mL methanol fraction decreased biofilm adhesion
Arroyo Maldonado : Estrategias proyectuales para la integración social, urbana y arquitectónica
El trabajo plantea la exploración de alternativas de organización de la estructura de un hábitat sostenible, que favorezca la integración social, urbana y arquitectónica, en áreas conflictivas y degradadas de la ciudad de La Plata, asegurando condiciones de habitabilidad y eficiencia en orden con la inquietud de avanzar y potenciar la construcción integral de la ciudad en el tiempo y no como un conflicto a resolver parcialmente. Clarificación conceptual y experimentación proyectual en el área definida por el cauce del arroyo Maldonado, área enquistada en los bordes de La Plata, que conserva datos de la cuadrícula extendida desde el casco fundacional de la ciudad. Una propuesta sustentable ambientalmente y sostenible en el tiempo, en condiciones de calidad de vida contemporánea que asuma las circunstancias particulares del sitio y sus posibilidades, identificando consignas específicas del tema. Responde a la necesidad de compatibilizar vivienda, trabajo y medioambiente, el ajuste de recursos para convivir con el agua, la organización de un entorno residencial-vecinal integrado al medio, a partir de soluciones arquitectónicas de bajo impacto en condiciones de flexibilidad y adaptabilidad a las diversas condiciones de grupos de trabajo y convivencia privada y social. Los componentes del problema que condicionan un proyecto integral sobre el área refieren a: el problema hídrico, la cuestión paisajística, la necesidad de articulación de la trama urbana ya consolidada, y la definición del área como residencial.Facultad de Arquitectura y Urbanism
- …