The Toxicity Exerted by the Antibiotic Sulfadiazine on the Growth of Soil Bacterial Communities May Increase over Time

The toxicity exerted by the antibiotic sulfadiazine on the growth of soil bacterial communities was studied in two agricultural soils for a period of 100 days. In the short-term (2 days of incubation), the effect of sulfadiazine on bacterial growth was low (no inhibition or inhibition <32% for a dose of 2000 mg·kg−1). However, sulfadiazine toxicity increased with time, achieving values of 40% inhibition, affecting bacterial growth in both soils after 100 days of incubation. These results, which were here observed for the first time for any antibiotic in soil samples, suggest that long-term experiments would be required for performing an adequate antibiotics risk assessment, as short-term experiments may underestimate toxicity effectsThis study has been funded by the Spanish Ministry of Economy and Competitiveness through the projects CGL2015-67333-C2-1-R and -2-R (FEDER Funds), and by Xunta de Galicia via CITACA Strategic Partnership (ED431E 2018/07) and BV1 research group (ED431C 2017/62-GRC). David Fernández Calviño holds a Ramón y Cajal contract (RYC-2016-20411) financed by the Spanish Ministry of Economy Industry and Competitiveness. Vanesa Santás Miguel holds a pre-doctoral fellowship founded by the University of VigoS

Simulation of a coke wastewater nitrification process using a feed-forward neuronal net

A laboratory-scale Activated Sludge System (ASS) was employed for the biodegradation of coke wastewater, which contains high concentrations of ammonium, thiocyanate, phenols and other organic compounds. The well-known kinetics models of Monod or Haldane are not very useful due to inhibition phenomena amongst the pollutants and also, they need the determination of a wide range of parameters to be introduced in the models. In this paper, a feed-forward neural network is outlined to obtain a satisfactory approach for estimating the effluent ammonium concentration of the treatment plan

The implementation of continuous evaluation methodologies improves the academic performance of Food Technology students

Resúmenes IV Congreso VetDoc de Docencia Veterinaria, León 2017 (6-7 de Julio)[ES] La información recabada en los Planes de Acción Tutorial permite concluir que algunos alumnos del grado de Veterinaria de la Universidad de León se encuentran insatisfechos con las calificaciones obtenidas y creen merecer mejores resultados para el esfuerzo de estudio empleado. Nuestra experiencia como docentes de la asignatura Tecnología de los Alimentos también nos permitió detectar que alumnos con dedicación similar al estudio obtienen rendimientos muy dispares, lo que confirmó que los hábitos de estudio tienen un papel muy significativo en el éxito o fracaso del estudiante y que las estrategias de aprendizaje empleadas por gran parte del alumnado no eran adecuadas para las metodologías docentes existentes. En particular, pudimos comprobar que el alumnado de Tecnología de los Alimentos no realizaba un estudio continuado de la asignatura a lo largo del semestre, sino que concentraba sus esfuerzos en la/s semana/s previas a las pruebas escritas

Rationale, design and preliminary results of the GALIPEMIAS study (prevalence and lipid control of familial dyslipidemia in Galicia, northwest Spain)

[Abstract] Aims. There is little information on the familial nature of dyslipidemias in the Spanish population. This knowledge could have potential diagnostic and treatment implications. The objective of the GALIPEMIAS study was to determine the prevalence of familial dyslipidemia in Galicia, as well as determine the degree of lipid control in the participants. Prevalence of atherosclerotic cardiovascular disease (ASCVD) was also estimated. This paper presents the design, methodology and selected preliminary results. Methodology. A cross‐sectional study was performed in the population aged ≥18 years using cluster sampling and then random sampling. A sample of 1000 subjects was calculated and divided into three sequential phases with a specific methodology for each one. Phase I: selection of subjects from the general population and collection of informed consent documents; Phase II: collection of data from the digital clinical history to select subjects with dyslipidemia according to study criteria; Phase III: personal interview, blood analysis, family tree, and definitive diagnosis of dyslipidemia. Prevalence of different diseases and active medication was analysed. Corrected prevalence (to the reference population) of different risk factors and ASCVD was estimated. Results. Phase I participation was 89.5%. We extracted complete information from 93% of the participants (Phase II). According to the study′s own criteria, 56.5% (n = 527) of the participants had some form of dyslipidemia and almost 33.7% of them had familial dyslipidemia with autosomal dominant inherit pattern. The corrected prevalence of ASCVD was 5.1% (95% CI 3.1‐7.2). Conclusions. Dyslipidemia was the most prevalent cardiovascular risk factor in our population with an autosomal dominant inheritance pattern in one out of every three dyslipidemia cases. Approximately, 5.1% of the sample population aged ≥18 has suffered an episode of ACVD

“Club del Trabajo Fin de Grado”: método de role-playing en Ciencia y Tecnología de los Alimentos

[ES] El juego de roles, un método de enseñanza innovador, ha sido considerado como una herramienta muy eficaz en la educación. Se utilizó esta metodología con el fin de ayudar a los estudiantes del último curso del Grado en Ciencia y Tecnología de Alimentos a afrontar con confianza y éxito la defensa de su Trabajo Fin de Grado. Además, se utilizó Twitter como herramienta de difusión de los conocimientos científicos adquiridos por los alumnos. Para poder conocer la opinión de los participantes, se distribuyó un cuestionario de satisfacción en relación con la experiencia de innovación docente. Todos los alumnos consideraron que esta actividad aumentó su confianza a la hora de enfrentarse a la defensa real del Trabajo Fin de Grado y les ayudó a mejorar su comunicación oral en comparación a si no hubieran realizado esta actividad. Por ello, sería interesante implementar esta metodología de aprendizaje activo en próximos cursos académicos, pudiendo incluso extrapolarlo en otros grados

Pandêmon Nosêma. Una revisión historiográfica de cómo las sociedades respondieron ante las epidemias a lo largo de la historia

A historiographic review of the main epidemic episodes suffered by humanity from Prehistory to the 20th century is carried out, with the aim of analyzing the incidence that successive infectious-contagious diseases had in different societies at each time, regarding four study variables: social, economic, political and mentalities.&nbsp; Keywords Disease, population, poverty, crisis, social stigma, manipulation.Se realiza una revisión historiográfica de los principales episodios epidémicos sufridos por la humanidad desde la Prehistoria hasta el siglo XX, con el propósito de analizar la incidencia que han tenido las sucesivas enfermedades infecto-contagiosas en las diferentes sociedades en cada época, atendiendo a cuatro variables de estudio: la social, la económica, la política y la esfera de las mentalidades. Palabras clave Enfermedad, población, pobreza, crisis, estigmatización, manipulación

Pandêmon Nosêma. Una revisión historiográfica de cómo las sociedades respondieron ante las epidemias a lo largo de la historia

A historiographic review of the main epidemic episodes suffered by humanity from Prehistory to the 20th century is carried out, with the aim of analyzing the incidence that successive infectious-contagious diseases had in different societies at each time, regarding four study variables: social, economic, political and mentalities.&nbsp; Keywords Disease, population, poverty, crisis, social stigma, manipulation.Se realiza una revisión historiográfica de los principales episodios epidémicos sufridos por la humanidad desde la Prehistoria hasta el siglo XX, con el propósito de analizar la incidencia que han tenido las sucesivas enfermedades infecto-contagiosas en las diferentes sociedades en cada época, atendiendo a cuatro variables de estudio: la social, la económica, la política y la esfera de las mentalidades. Palabras clave Enfermedad, población, pobreza, crisis, estigmatización, manipulación

Innovación en las enseñanzas universitarias: experiencias presentadas en las III Jornadas de Innovación Educativa de la ULL

En este libro se recoge un conjunto de experiencias de innovación educativa desarrolladas en la ULL en el curso 2011-12. Se abordan distintos ámbitos y ramas del conocimiento, y ocupan temáticas variadas que han sido desarrolladas con rigor, y con un claro potencial para su extrapolación a efectos de la mejora educativa en el ámbito universitario. Esta publicación constituye una primera edición de una serie que irá recogiendo las experiencias de innovación educativa de la ULL. Este es un paso relevante para su impulso en nuestra institución, como lo es el de su vinculación con la investigación educativa, para potenciar su publicación en las revistas científicas en este ámbito cada vez más pujante y relevante para las universidades. Sobre todo representan el deseo y el compromiso del profesorado de la ULL para la mejora del proceso educativo mediante la investigación, la evaluación y la reflexión compartida de nuestras prácticas y planteamientos docentes

Layered zeolitic materials: an approach to designing versatile functional solids

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Multifunctional Hybrid Organic−Inorganic Catalytic Materials with a Hierarchical System

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