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Evaluación de las características fisicoquímicas y las concentraciones de metales pesados en efluentes de una zona de explotación de minería artesanal de oro en el departamento de Bolívar: estrategias de tratamiento de efluentes
(2021-04-08) Guerrero, Raymundo; Pinedo, José; Marrugo Negrete, José Luis
Este proyecto evalúo la caracterización fisicoquímica de efluentes del distrito minero de San Martin de Loba, departamento de Bolívar, generando datos para la evaluación de riesgo en salud y la planificación y propuesta de un sistema de tratamiento de efluentes. Se realizó un muestreo aleatorizado de efluentes mineros, considerando la distribución espacial de sitios de procesos de extracción de oro en el distrito minero. La caracterización fisicoquímica se realizó en función de la normatividad 0631 de 2015. La concentración de los parámetros SST, SO4, S, CN, Hg, Cd, Fe, Pb, Cu y Cr en el efluente supero los límites permisibles establecidos por la resolución 0631 de 2015 para actividades de extracción de oro y otros metales preciosos en una relación de SST (44.2), SO4 (1.1), S (1.8), CN (6.4), Hg (2650), Cd (2), Fe (19), Pb (7.5), Cu (2.7) y Cr (376). El análisis estadístico multivariado de componentes principales (CP), deduce que la contaminación de los efluentes puede estar asociada a fuentes geofísicas y geológicas. Además, de las actividades de procesamiento de minerales. La evaluación de riesgo en salud demuestra que excepto Cr y Hg presentan valores de índice de riesgo (HQ) menor que uno (1), indicando que éstos metales representan un riesgo potencial para la salud. Para el tratamiento efluentes mineros se propone la utilización de métodos activos que precisan de una operación continua y métodos pasivos en los que la intervención del hombre es mínima. En general los resultados de este proyecto permiten presentar un diagnóstico inicial de la problemática de contaminación de los efluentes mineros de la zona de estudio y serán útiles para seguir desarrollando estrategias de mitigación ambiental por las autoridades ambientales y de salud pertinentes; respondiendo a la necesidad en el manejo y conservación de los recursos naturales y salud pública.
Acceso abierto
Comprensión del significado de participación democrática estudiantil para saber elegir representantes al gobierno escolar
(Universidad de Córdoba, 2021-04-08) Bruno Barrios, Jorge Luis; León Vertel, Cecilia del Carmen de; González Arizmendi, Samuel
Esta investigación aborda la comprensión del significado de participación democrática estudiantil para saber elegir representantes al gobierno escolar. Su propósito fue comprender el significado de participación democrática estudiantil para saber elegir representantes escolares al gobierno escolar en la Institución Educativa Santa María de Montería. Centró su accionar desde el tipo de investigación cualitativo, con enfoque hermenéutica comprensiva y diseño metodológico el método fenomenológico hermenéutico. Utilizó la entrevista fenomenológica y la observación reflexiva. Entre las conclusiones, los autores destacan que la participación democrática estudiantil se ha abordado en los últimos años desde diferentes referentes teóricoprácticos, pero que el saber elegir constituye un ámbito no explorado a profundidad. Además, se logró penetrar la esfera de la conciencia de los discursos dados por los informantes claves alrededor de las experiencias vivenciadas del proceso de la campaña, elección y desempeño del cargo. De igual forma, se estructuró un discurso desde las esencias temáticas y fenomenológicas que reflejan como los sujeto comprenden un nuevo significado de la participación democrática estudiantil y de saber elegir representes al gobierno escolar que les permitan reflexionar acerca de la forma como se vienen dando estos procesos en la escuela.
Acceso abierto
Impacto de la jornada única escolar en el desempeño académico de los estudiantes: análisis desde el componente acompañamiento pedagógico y recursos humanos en la Institución Educativa "La Ye" periodo 2016-2018
(2021-03-08) Caldera Villadiego, Juan José; Robles, Juana; Caldera Villadiego Juan José
This research defined the general objective of analyzing the impact generated by the implementation of the Single Day from the components of pedagogical accompaniment and human resources on the academic performance of students at La Ye Educational Institution in the years 2016-2018. It was methodologically based on the interpretive paradigm, with a qualitative research approach and a case study method, the research participants were 30 11th grade students, 3 teachers and 2 teacher directors. The documentary analysis, the survey and the interview were implemented as information gathering techniques. The results were that the implementation of the single day generated different changes in the study plans, pedagogical support and human resources in the aforementioned institution, which influenced the improvement of the results of the knowing 11 tests. It was concluded that the single day in its pedagogical and human resources component was configured as an improvement tool in the school processes developed in the La Ye Educational Institution, because it focused its attention on strengthening the teaching practices of teachers from reflection as a whole and a critical look at them. In addition, it allowed the transformation of the dynamics of review and adjustments to institutional documents. With the implementation of the single day at the La Ye Educational Institution, a positive impact was generated in the academic performance of the students and in the pedagogical practice of the teachers, as well as in the fulfillment of the institutional goals and the improvement of the educational quality
Acceso abierto
Estudio de competencias científicas para el aprendizaje y la enseñanza de ciencias en undécimo grado a mediante el aprendizaje basado en problemas
(2021-04-07) González, Martha Sofía; Flórez Nisperuza, Elvira Patrcia
At present, the explanation of various phenomena associated with the teaching of natural sciences, has presented adverse situations related to traditional methodologies, the scarcity of tools and resources of a didactic nature, adversely affecting learning and the development of scientific competences in students. The objective of this study was to improve the appropriation and development of scientific competences from the use of problem-based learning didactic units in eleventh grade students of the Germán Gómez Peláez school of Puerto Libertador-Córdoba. in a type of qualitative research, focused on the case study, carried out from the analysis of the classroom context, a self-evaluation exercise carried out with 32 11th grade students and interviews with 8 natural science teachers from this educational institution . The findings of this research showed that most of the students are unaware of the importance of scientific competences, showing a low level of ownership of these competences. Similarly, teachers show little appropriation regarding the use of didactic methodologies and strategies that favor the learning and development of scientific competences, therefore the implementation of the didactic proposal related to the design of didactic units under the learning approach based on problems for the teaching of Natural Sciences.
Acceso abierto
Contribución del programa todos a aprender (PTA) al desarrollo de las competencias comunicativas de los estudiantes de básica primaria de la Institución Educativa Rancho Grande
(2021-04-07) Bula Silva, María Concepción; Doria Correa, Ruby
Este artículo muestra los resultados de un estudio evaluativo sobre el estado de las competencias comunicativas, en materia de la enseñanza del lenguaje y la utilización del programa Todos a Aprender (PTA), al realizar procesos de lectura, escritura y oralidad. Este proyecto se realizó en la Institución Educativa Rancho Grande, sede Miraflores, en Montería- Córdoba, durante los años 2017 y 2019, con estudiantes de primero a quinto de primaria y algunos docentes. En donde se asumió una metodología de carácter cualitativo, con un diseño metodológico evaluativo; que pretendió evaluar las contribuciones del programa, por medio de actividades y materiales que ofrece el PTA, para comprender sí se están desarrollando las competencias comunicativas de los estudiantes o si hay algún avance a partir de las mismas. De igual manera, describió cómo el PTA, se convierte en un elemento de apoyo para docentes y estudiantes, en aras de conseguir el mejoramiento de dichas habilidades comunicativas. Los resultados mostraron que la aplicación de las estrategias y secuencias didácticas, se tomaron en gran parte como herramientas de trabajo, lo que evidenció la poca empatía que existe con el programa por estudiantes y maestros. Se concluyó que la contribución fue positiva.
Acceso abierto
Escenario de construcción conjunta del conocimiento mediado por las TIC en el área de filosofía en la Institución Educativa Normal Superior de Sahagún-Córdoba
(2021-04-07) Ruiz Araujo, Dayro; Mercado Herazo, Andrés; Pacheco Lora, Luis Carlos
The objective of this research was to assess the impact of the implementation of knowledge construction scenarios in the area of philosophy, mediated by the creation of a YouTube channel in the 10th grade of the Higher Normal Educational Institution of Sahagún, Córdoba. It was assumed a type of qualitative research with a phenomenological modality, with an action research approach. In which observation, the focal group and the interview were applied as techniques for the collection of information. The result was that the pedagogical practices of the philosophy teachers of the institution under study did not integrate much to ICTs, which deserved an intervention process mediated by a technological resource that responded to the students' learning needs. The research concluded that the creation of a You Tube channel allowed an easy understanding of the development of the learning activities proposed in the pedagogical proposal, which awoke in the students an active participation that favored and motivated enthusiasm for learning, and the valuation of philosophical knowledge and their personal achievements. Likewise, the students preferred the transversal use of ICT in academic activities, leading to the rethinking of traditional methodologies (board and marker) for the development of academic activities.
Acceso abierto
Desarrollos curriculares presentes en la educación para los derechos humanos: Institución Educativa el Carito
(2021-04-07) Madera Escobar, Avelino José; Taborda Caro, María Alejandra
Human rights education is an aspect of great importance in the curricular processes of schools, so the school must provide itself with a strategy that allows the participation of the educational community and that especially students in all learning spaces can experience human rights, developing in them values that promote the achievement of peace, social cohesion and respect for human dignity. Therefore, this research defined as an objective to establish the curricular developments present in the education for the experience of human rights in the Educational Institution El Carito, Córdoba, Colombia. It was based on a type of qualitative descriptive research and required the understanding and analysis of the information obtained through documentary analysis and the interview, developed to obtain data for the purpose of evaluating curricular developments, the presence of human rights education in the aforementioned educational institution. The result was that institutional documents define mechanisms for the participation of the educational community, duties and rights, and participation in decision-making that allows human rights to be experienced in the institution. In addition, in the area of social sciences, pedagogical practices are developed that promote human rights among students, through transversal projects and the application of teaching strategies that guarantee the presence of human rights in the classroom. It was concluded that human rights are experienced through interaction and participation of all members, as a broad process of exchange of information, opinions and feelings expressed both with our verbal and non-verbal attitude.
Acceso abierto
Modelo VERA: Visual Encouragement Ready for All. Creación de tecnologías para la orientación y movilidad con y para personas con discapacidad visual
(2021-04-05) Otero Macea, Hugo Andrés; Giraldo Cardozo, Juan Carlos
People with disabilities had been segregated by the years. The process of creating technologies for orientation and mobility learing (O & M) is not an exception. Most of the O y M tech was made for and without people with disabilities. In this Project, we use a qualitative research approach named action-research. The techniques involved in that purposes was: participative observation, non-structured focal group, and non-structured interviews The main process to analyze the data is the content analysis approach, preserving the sense and the meaning of the voices of the people. Here are some of the findings: ● The spatial representations of blind people are valid, legitimate and transferable ● Share time with people with disabilities is an important step to create technologies A model to create technologies built with all of that information, it has four steps: VERA sensitive, VERA cognitive, VERA technological, and VERA social At the end of the study, there are several recommendations that people who create technology can use, This is VERA model
Acceso abierto
Evaluación del arsénico (As), cadmio (Cd), mercurio (Hg) y plomo (Pb) en peces, crustáceos y moluscos de mayor consumo en Isla Fuerte (Caribe colombiano): estimación del riesgo por ingesta a la salud humana
(2021-04-06) Hernández Domínguez, Claudia Maritza; Marrugo Negrete, José Luis
Heavy metals are a special worldwide concern due their environmental persistency; these pollutants can accumulate and exponentially increase their levels, representing a high ecological and toxicological risk when they generate pollution processes in the biota and marine ecosystems. This work evaluates the concentrations of arsenic (As), cadmium (Cd), mercury (Hg) and lead (Pb) in muscle of fish, crustaceans and mollusks, as well as the potential risk to human health associated with the consumption of this species in Isla Fuerte - Colombian Caribbean. The individuals studied were captured by fishermen of the Island between march and october in 2019, in capture areas considered of transit, stay and feeding of fish, crustaceans and mollusks using traditional fishing techniques such as fishhook, manual capture and immersion with snorkel. A total of 138 individuals were sampled, corresponding to 112 adult fish, 16 adult crustaceans and 10 adult mollusks. The quantification of arsenic (As), cadmium (Cd) and lead (Pb) in muscle of sampled individuals was carried out by atomic absorption spectrophotometry with graphite furnace (GFAAS), the quantification of mercury (Hg) was carried out by the US EPA-7473 method (thermal decomposition, amalgamation, and atomic absorption spectrometry), using a direct mercury analyzer (DMA-80). In this sense, fish species Balistes capriscus showed the highest concentrations of As (6272 ± 2791 ng/g) and Caranx hippos, the highest concentrations of Hg (381,26 ± 52 ng/g), both species with carnivorous habits. While the herbivorous benthic mollusk Lobatus gigas bioaccumulated more efficiently Cd (170 ± 91,6 ng/g) and Pb (51,05 ± 2,77 ng/g). In this way, Pearson's correlation coefficients (p
Acceso abierto
Relación escuela –familia en condiciones de ruralidad como parte del proceso de desarrollo integral de los estudiantes
(2021-04-06) Ortega Solórzano, Alexandra; Meza Galván, Morelia Margarita; Otalvaro Sepúlveda, Carlos
The objective of this research was to understand the School-Family relationship in rural conditions as part of the integral development process of the 5th grade students of the Besito Volao Educational Institution, Palma de Vino headquarters. To achieve the objective, the theoretical foundation was based on the concepts of family, school and their relationship, taking into account the rural characteristics of these two entities and the contribution to the integral development of the students. Methodologically, the research was qualitative with an ethnographic method, working with 14 families of the students of the grade mentioned above, applying observation, documentary review and interview as information gathering techniques. The result was that there is no articulation of families with school processes, no teaching strategies or resources are evidenced to link the social and family context in activities within the classroom. Likewise, in institutional documents, there is no clear evidence of programs, policies or activities that establish the relationship between the school and the family. The study concludes that the family in rural conditions is characterized by assigning great importance to the role of the school in the community, therefore, it makes efforts to allow children to attend the educational establishment so that they receive education from the students. teachers, therefore, the family training function is delegated to the school. The role of the family in school processes must be materialized in the classroom, through articulation strategies that respond to a mission and vision that the school proposes, likewise, the school must know the families that belong to it and this way create the relevant tools to link it more easily
Acceso abierto
Transversalidad de la formación en valores en las prácticas de enseñanza de los docentes de la básica secundaria de la Institución Etnoeducativa los Córdobas
(2021-04-05) Balaguera Ortiz, Ezequías; Elis Cogollo, Emilio; Villamil Benítez, Ilse
Training in values is considered an essential element in the integral education of people. Therefore, the present research study aimed to implement a pedagogical strategy for the mainstreaming of training in values in the pedagogical exercise of elementary school teachers of the Ethnoeducational Institution Los Córdobas as the starting point of the process. For this, a type of qualitative research with an action research approach was defined, the interview, the focus group and a rubric for the evaluation of the strategy to collect the information were applied. The analysis of the information collected was carried out by means of data triangulation. It was obtained as a result that the pedagogical practices of the teachers under study were characterized by the absence of values as a component within their classes, therefore, a virtual pedagogical strategy for training in values was designed and implemented for these teachers. This research concludes that theoretical and practical tools were provided to improve the teaching-learning process of values. However, there was a parallel benefit because teachers strengthened their knowledge about technological tools and their use. In addition, the use and implementation of the Moodle platform will include understanding in an easy way the realization of the learning activities proposed in the intervention proposal, which aroused committed participation in the teachers that favored and motivated enthusiasm for learning, and assessment of the transversality of values in teaching-learning.
Acceso abierto
Desarrollo territorial integrado en la ciudad de Montería y su área de influencia
(2021-04-05) Hernández Sabié, Richard Miguel; Villalba León, Doris Alicia
The city of Montería in recent decades has extended its area of influence to areas commonly defined as rural, that is, areas of agrarian traditions associated with nature and agriculture, which has gradually caused the rural area, apparently, to fade into the socioeconomic group. Essential situation for present and future scenarios in planning and (re) land use planning. The realization of this research allowed to comprehensively evaluate the territorial development in the city of Montería and its area of influence, identifying strengths and weaknesses of the territorial system, in the selected area, in such a way that it made it possible to define alternatives for planning and territorial development, stimulating the spatial dynamics of the territory, contributing to the improvement in terms of spatial organization. In addition to the above, a strategic planning plan was designed to stimulate and promote Integrated Territorial Development in the studied area. The ethnographic, cartographic, analytical and synthetic research methods, taken into account as theoretical-methodological support, were articulated with the conceptual axis proposed for the development of the research. We worked with themes and approaches, from different authors, related to territory, city, topophilia, territorial cohesion, planning, management, ordering and territorial development. All this under the postulates and axes of the geographical discipline, specifically from urban, regional and perceptual geography, without ignoring some analytical references from other sub-disciplines of geography (economic, cultural and environmental). An investigation formulated in terms of planning and (re) ordering the geographic space allows to contrast and substantiate the territorial reality of places and regions from a geographic perspective under the consideration of key concepts and theories, within the framework of an integrated territorial development that contributes to the recognition and assessment of important aspects for the improvement of the quality of life of the population, in conclusion, it can be affirmed that the development of this research showed results that account for the existence, in Montería and its area of influence, of conditions keys to better planning and management of resources, aimed at Integrated Territorial Development.
Embargo
Relación de la gestión de la cadena de suministros y la gestión de la calidad en la toma de decisiones estratégicas
(2021-03-26) Herrera Yanez, Luis Miguel; Martínez Martínez, Jennifer; Alarcón Barrios, Galia
Las empresas intentan involucrarse y adaptarse a las perspectivas que los clientes quieren, con la intención siempre de darle tanto un buen servicio o excelente producto, por lo que para ello buscan reinventarse y estar acorde a las nuevas expectativas que el mercado exige, así como las tecnologías que se van dando. Por esas razones, las organizaciones se reevalúan en todos sus procesos y gestiones para obtener con ello una mejor productividad. No obstante, una escasez de investigación ha explorado la relación de la gestión de la cadena de suministro y gestión de la calidad dentro de un contexto general de la organización. La investigación de la relación de la gestión en la cadena de suministro y la gestión de calidad dentro un marco de organización tiene el potencial de fomentar el desarrollo de la teoría de la gestión de la cadena de suministro y la gestión de calidad y fortalecer la gestión de la cadena y la práctica de la gestión de calidad (Peng et al., 2019). La comprensión de cómo la gestión de la cadena y la gestión de calidad están relacionadas con una organización y cómo esta relación afecta el desempeño organizacional es poco explorado, lo que limita la capacidad de sacar el máximo provecho de las herramientas asociadas de una manera que optimiza los recursos de la organización (Flynn & Flynn 2005; Kim, Kim, & Su, 2011; Dellana & Kros 2014; Huo, Zhao & Lai 2014; Fernandes et al. 2017; citado en Soares et al., 2017). Aun así, a pesar de la escasez mencionada, esta monografía se centra en la búsqueda de las relaciones existentes entre la gestión de la cadena y la gestión de calidad con el fin de establecer cómo estas relaciones se pueden adoptar como búsqueda de decisiones estratégicas en el mundo organizacional. Por tal razón, se mostrarán los resultados de una revisión Sistemática de Literatura sobre la gestión de calidad en Cadenas de Suministro identificando las variables relevantes que determinarán la importancia de cada uno de sus eslabones y su eficacia en el contexto de la calidad.
Acceso abierto
Influencia del liderazgo en la mejora de los procesos de calidad dentro de las organizaciones: análisis para el sector servicio en empresas estatales
(2021-03-26) Ossa Acosta, Ximena de la; Ortega Araujo, Wendy; Stanford Salcedo, Jesús; Alarcón Barrios, Galia
Through this bibliographic review, the influence that leadership has on the continuous improvement of processes in service companies, which are part of the state sector, was studied over the last ten years. In which, the incidence of leadership is associated with hierarchical factors somewhat remote from the significant role that a leader plays within quality management systems, through a qualitative analysis of the benefits that the adoption of leadership brings with it. Development of organization management processes. Establishing that motivation is a determining factor so that the human talent of a company is aligned with the achievement of organizational objectives and policies and that assertive communication and teamwork are determining values within the principles that every leader must root in his work methodology. According to the bibliographic study, in Colombia public sector companies are linked to factors that reflect a lack of concern for the implementation of plans, programs and methodologies that guarantee a work environment that leads to the satisfaction and growth of human resources, which it will be reflected in the satisfaction of the other interested parties.
Acceso abierto
Estudio de la dinámica del péndulo físico simétrico en un campo de fuerza uniforme
(2021-04-04) Vergara Dueña, Luis Guillermo; Maya Taboada, Héctor Roger
Acceso abierto
Evaluación de la satisfacción del cliente en tramites académicos y administrativos en el programa de Ingeniería Ambiental de la Universidad de Córdoba a través del método servperf
(Universidad de Córdoba, 2021-03-26) Barreto López, Liliana Enith; González Hernández, Carolina; Plaza Gómez María Trinidad
This application and deepening work aimed to evaluate client satisfaction in academic and administrative procedures in the Environmental Engineering Program of the University of Córdoba, through the SERVPERF method, to measure the quality of the service provided. The analysis was carried out through the adaptation of the original questionnaire of the SERVPERF model proposed by Cronin and Taylor (J. Joseph Cronin, 1992), made up of 5 dimensions of service quality: tangible elements, reliability, response capacity, security and Empathy distributed in 22 affirmations which were measured through a 7-point Likert scale, which consisted of giving values of approval or disapproval to the affirmations between 1 and 7. Ending with the analysis of the results obtained and with the respective conclusions and recommendations for the Environmental Engineering Program.
Acceso abierto
Concepciones sobre educación inclusiva y su relación con la práctica pedagógica de los docentes
(2021-03-15) Pacheco Herrera, Paty; Benítez, Nilsa Shirley
Inclusive education focuses on attention to diversity, to the extent that, through directive, administrative, pedagogical and community processes, it seeks to recognize and enhance the strengths of students who have been violated, either by academic situations, cognitive, social, creed, race, choices or personal decisions that limit their participation in academic spaces. Hence, the objective of this research focused on determining the existing relationships between the concepts of Inclusive Education (IE) and the pedagogical practices developed by the teachers of the Santa María Goretti educational institution, belonging to the city of Montería-Córdoba. This process was developed through a qualitative approach, applying a phenomenological design which made it possible to show the experiences of teachers and rescue the immersed voices that account for whether or not there is a relationship between what they say and what they do. For the collection of information, three strategies were taken into account within the design. First, a context reading was carried out, then a semi-structured interview was prepared with 8 teachers of basic secondary education, from grades 6 to 11, who accepted the criteria chosen for the sample and, based on this, three observations were made to each teacher, which were recorded in the observation protocol. Faced with the results, these showed that the majority of the pedagogical practices of the observed teachers are not related between what they conceive as Inclusive Education and what they do in their daily practice. To this extent, the conceptions found refer, above all, to the field of disability, leaving aside other characteristics, styles and rhythms of learning that characterize the learners and that are fundamental when implementing strategies in planning and, in turn, allow the development of classes. Other findings showed that the majority of educators are more interested in the intellectual development of their students and although they vary in the types and forms of evaluation, they Concepciones sobre educación Inclusiva y su relación con la práctica pedagógica de los docentes 8 give priority only to the written part and to participation in classes. In summary, the educators state that they make adjustments in the classroom, in terms of the attention to the diverse needs of the students, however, it was evidenced that very few put it into practice.
Acceso abierto
Análisis de peligros y puntos críticos de control (haccp): sistema para la gestión de la inocuidad en las industrias agroalimentarias en Colombia
(2021-03-14) Bruno Salabarria, Milena Sofía; Fuentes Bedoya, Eliana Andrea; Pastrana Puche, Yenis Ibeth
Today, governments and parties involved in food control are under constant pressure to find a more efficient and effective system to meet established safety standards, which help ensure that the consumer purchases a product suitable for their consumption This has led to the recognition and incursion of hazard analysis and critical control points, with its acronym in English -HACCP- "Hazard Analysis Critical Control Point" as a food surveillance tool based on applying a preventive and anticipatory plan to reach to a final product free of hazards. The objective of this work was to argue by means of a bibliographic review that the application of -HACCP- guarantees the system for the management of safety in the agri-food industries in Colombia by reducing the dangers that are presented within the production line, in addition to highlight the benefits that the design and implementation of the system brings. To meet the objective, a theoretical framework was structured which covered topics such as food hazards, importance of food safety, application of the HACCP system in industries, among others, in order to contextualize the subject and later develop a state of the art in the from which business cases of system application were studied, showing the advantages and benefits obtained once the safety system was applied. Finally, a successful case of the application of the system was described in a company in the dairy sector located in the region. The design and implementation of the HACCP system allows the identification of critical points where strict controls must be applied to avoid contamination of the product and ensure its quality and safety
Acceso abierto
Caracterización clínica y patobiológica de la infección experimental con Edwardsiella tarda Y Edwardsiella anguillarum en alevinos de tilapia (Oreochromis sp.)
(2020-11-30) Hernández Carrascal, Jaime Alberto; Barato Gómez, Paola Andrea; CORPAVET
Edwardsiellosis is a systemic granulomatous disease that affects a wide range of terrestrial and aquatic hosts, including tilapia (Oreochromis sp). Recently, Edwardsiella tarda was phylogenetically reclasiffied in three species: E. tarda, E. anguillarum and E. piscicida. The purpose of this research was to characterize clinically and pathobiologically the experimental infection with E. tarda and E. anguillarum in tilapia fingerlings. An experimental study was carried out with 19 groups, each with two replications, as follows: immersion inoculum (INM) and intragastric (IG) in doses 106 , 107 and 108 cfu/ml for each bacteria (E. anguilllarum and E. tarda) (12 groups), intraperitoneal inoculum (IP) at doses 106 and 107 cfu/ml equally for both microorganisms (4 groups), and three (3) negative control groups with inoculation of sterile physiological buffered solution (PBS) by the respective routes inoculation (IP, IG, or IMM). During the experimental period (30 days) the fish were clinically evaluated (signs and gross lesions). The fingerlings were weighed at three times: at day 0 start of the experiment, at day 15 (first phase) and at day 30, culmination of the experiment (second phase). The fish inoculated with E. anguillarum (18-355) and with E. tarda (18- 294) by IP route after day 4PI and 7PI presented ascites, whitish masses in the peritoneum and spleen, hepatomegaly, splenomegaly, absence of food in the intestine and gallbladder distention. By the IG route with E. anguillarum, 25% of mortality was presented with 106 cfu/ml, 33% with 107 cfu/ml and 58% with 108 cfu/ml; with this same bacterium by the INM route with 106 cfu/ml there was no mortality during the first 15 days, with 107 cfu/ml it was 50% and with 108 cfu/ml it was 55%. With E. tarda by inoculation via IG and INM for a period of 1 to 15 days PI there was no mortality, and during days 15 to 30 PI the fish inoculated by INM with 108 cfu/ml had 43% mortality. At day 30 PI, significant differences (P
Acceso abierto
Factores que inciden en la práctica de valores para la convivencia escolar en los estudiantes de octavo grado de la Institución Educativa Belén, Buenavista Córdoba
(2021-02-11) Olea Hernández, Leonardo Antonio; Palomo Zurique, José Hipólito
The aim of thi study is to determine the factors that have influence in the practice of values in the school life of 8th grade students from Educational Institution of Belèn, jurisdiction of Buenavista Córdoba. To reach it, it was necessary the use of a descriptive type research, starting from the implementation of an descritive methodology research methodology. Which began by establishing the characteristics of the school life in the 8th grade students of the mentioned institution. Then, a strategy was designed. Starting from the pactice of values related to pacific coexistence and other values that promote the improvement of interpersonal relationships. A a result, the students developed many actions through a pedagogical proposal in which teachers, parents and students participated. This generated positive changes in the students behavior and their school lifestyle.