Search results for "Laboratory"
showing 10 items of 923 documents
Un proyecto de biología sintética para la motivación y aprendizaje de los estudiantes del primer curso del Grado en Biotecnología.
2020
[ES] En el presente trabajo presentamos un proyecto de biología sintética de nivel profesional adaptado a estudiantes de primer curso. Describimos las adaptaciones necesarias para hacerlo asequible para unas prácticas de laboratorio, tanto a nivel pedagógico como en cuanto a la viabilidad económica de los materiales utilizados. El proyecto pretende la motivación de los estudiantes del Grado en Biotecnología mediante la introducción temprana de la actividad profesional real en biomedicina, así como la adquisición de una serie de competencias del trabajo práctico en el laboratorio imprescindibles para el biotecnólogo en formación.
Empleo de Socrative para la evaluación del trabajo previo en asignaturas prácticas de laboratorio
2019
[EN] University students of experimental sciences degrees usually go to the laboratory of practices without having prepared the corresponding activity. This fact leads to a poor preparation of them translated into an effective loss of time available for experimentation, and a reduced acquisition of knowledge and skills, among other aspects. In order to solve this problem, in the present communication, the use of on-line questionnaires using the Socrative platform is described to be used as a prior evaluation system to access the laboratory. The results obtained show that the proposed didactic strategy significantly improves the preparation of the students upon arrival to the laboratory, as …
El descubrimiento de nuevos fármacos, concepto umbral en farmacología.
2021
[EN] The so-called “threshold concepts” are present in all areas of study. Its acquisition by the student represents a milestone in the advancement of the conceptual understanding of a subject. They are often difficult to learn, but when they are overcome they generate a reconceptualization that allows progress and deepening in the subject of study. We present an activity designed to develop a key threshold concept in pharmacology, the drug discovery process. To do this, we develop a practical laboratory project that will integrate both the extraction and search for active ingredients and the simulation of some aspects of their clinical trials in the phase I.
LaboratorioRPGDocente: Un game-based learning para combatir la situación causada por la COVID-19 en instituciones educativas.
2021
[EN] Due to the pandemic caused by COVID-19, several educational institutions have been forced to close their facilities, and practical courses -such as laboratory practices- were impossible to carry out. Game-based learning can be found among many different digital learning techniques, and it consists in teaching the contents as a transversal inmersive element. This work will be focused on a simulation videogame, which allows the students to understand the simulated environment and to develop certain skills based on their interaction with the game interface. One of the main characteristics of these kind of video games is their high degree of realism. More specifically, in this project, stu…
Neonicotinoids from coated seeds toxic for honeydew-feeding biological control agents
2021
Seed coating (‘seed treatment’) is the leading delivery method of neonicotinoid insecticides in major crops such as soybean, wheat, cotton and maize. However, this prophylactic use of neonicotinoids is widely discussed from the standpoint of environmental costs. Growing soybean plants from neonicotinoid-coated seeds in field, we demonstrate that soybean aphids (Aphis glycines) survived the treatment, and excreted honeydew containing neonicotinoids. Biochemical analyses demonstrated that honeydew excreted by the soybean aphid contained substantial concentrations of neonicotinoids even one month after sowing of the crop. Consuming this honeydew reduced the longevity of two biological control …
IPM-recommended insecticides harm beneficial insects through contaminated honeydew
2020
The use of some systemic insecticides has been banned in Europe because they are toxic to beneficial insects when these feed on nectar. A recent study shows that systemic insecticides can also kill beneficial insects when they feed on honeydew. Honeydew is the sugar-rich excretion of hemipterans and is the most abundant carbohydrate source for beneficial insects such as pollinators and biological control agents in agroecosystems. Here, we investigated whether the toxicity of contaminated honeydew depends on i) the hemipteran species that excretes the honeydew; ii) the active ingredient, and iii) the beneficial insect that feeds on it. HPLC-MS/MS analyses demonstrated that the systemic insec…
Endothelial cell-matrix interactions.
2002
Dynamic interactions between endothelial cells and components of their surrounding extracellular matrix are necessary for the invasion, migration, and survival of endothelial cells during angiogenesis. These interactions are mediated by matrix receptors that initiate intracellular signaling cascades in response to binding to specific extracellular matrix molecules. The interactions between endothelial cells and their environment are also modulated by enzymes that degrade different matrix components and thus enable endothelial invasion. Recent reports on gene targeting in mice have confirmed the role of two classes of matrix receptors, integrins and cell surface heparan sulfate proteoglycans…
Preclinical immunomodulation by the probiotic Bifidobacterium breve M-16V in early life
2016
This study aimed to investigate the effect of supplementation with the probiotic Bifidobacterium breve M-16V on the maturation of the intestinal and circulating immune system during suckling. In order to achieve this purpose, neonatal Lewis rats were supplemented with the probiotic strain from the 6th to the 18th day of life. The animals were weighed during the study, and faecal samples were obtained and evaluated daily. On day 19, rats were euthanized and intestinal wash samples, mesenteric lymph node (MLN) cells, splenocytes and intraepithelial lymphocytes (IEL) were obtained. The probiotic supplementation in early life did not modify the growth curve and did not enhance the systemic immu…
Two worlds of change: on the internationalisation of universities
2010
Institutional change entails balancing multiple competing, inconsistent and often loosely coupled demands and concerns, often simultaneously. This article poses the following question: How are patterns of internationalisation of research among academic staff at universities balancing two worlds of change, that is, governance by the university leadership (H1) as well as initiatives by the faculty members (H2)? This article argues and empirically substantiates that internationalisation of academic staff tends to be a balancing‐act between these two worlds of change. Whereas most universities increasingly formulate strategies for internationalisation (H1), the research behaviour of faculty mem…
Nova metodologia d'aprenentatge autònom aplicada a una pràctica d'Enginyeria Química mitjançant tècniques de recerca-acció
2014
Un grup de professors del Departament d'Enginyeria Química i Ambiental de l'Escola Tècnica Superior d'Enginyeria de la Universitat de Sevilla ha realitzat un treball d'investigació-acció amb l’objectiu de millorares resultats docents en l'assignatura Experimentació en Enginyeria Química. El procés d'investigació-acció ha consistit en dissenyar una metodologia alternativa per a una de les pràctiques de l'assignatura, incorporant un exercici d'auto-aprenentatge que substitueixi la tradicional metodologia aplicada. L'objectiu de l'experiència docent pretén aconseguir una participació més activa de l'alumnat, millorant l'assimilació de conceptes i la capacitat per planejar el treball experiment…