Issues Year 3. Number 6. Journal of the School of Social Sciences, Humanities and Arts

Las opiniones contenidas en los artículos de esta revista no vinculan a la institución sino que son de exclusiva responsabilidad de los autores, dentro de los principios democráticos de cátedra libre y libertad de expresión, consagrados en el artículo 3° del Estatuto General de la Corporación Universidad Autónoma de Bucaramanga. El material de esta publicación puede ser reproducido sin autorización, siempre que se mencione su procedencia y la escuela de Ciencias Sociales, Humanidades y Artes de la UNA. reciba un ejemplar de su publicación.Presentación. - 5 Educación y porpensión a aprender y a enseñar. - 13 La formación del profesorado universitario. - 29 Vigencia de los principios de Juan Amos Comenio en las prácticas pedagógicas actuales. - 37 Dámaso Zapata: "Héroe de la paz en las Américas". - 43 Clima social de los centros educativos y hostigamiento psicológico - Una lectura socioconstructiva desde los sistemas autoritarios- . -49 El aprendizaje: Dos perspectivas diferentes del mismo proceso. - 61 La experiencia del aprendizaje mediado: Una opción para el cambio de actitutd del maestro. - 71 El diseño de ambientes de aprendizaje desde una visión constructivista. - 79 Hacia la construcción de preescolares lúdico-científicos colombianos. - 89 Travesía por Nireneotor: Una experiencia de aprendizaje por medio de un ambiente virtual. - 97 Las competencias científicas en el proceso de formaicón de escolares. - 111The opinions contained in the articles of this journal do not bind the institution but are the exclusive responsibility of the authors, within the democratic principles of free teaching and freedom of expression, enshrined in article 3 of the General Statute of the University Corporation. Autonomous of Bucaramanga. The material in this publication may be reproduced without authorization, provided that its origin and the UNA School of Social Sciences, Humanities and Arts are mentioned. receive a copy of your publication

Methodological assessment of 2b-RAD genotyping technique for population structure inferences in yellowfin tuna (Thunnus albacares)

Abstract Global population genetic structure of yellowfin tuna (Thunnus albacares) is still poorly understood despite its relevance for the tuna fishery industry. Low levels of genetic differentiation among oceans speak in favour of the existence of a single panmictic population worldwide of this highly migratory fish. However, recent studies indicated genetic structuring at a much smaller geographic scales than previously considered, pointing out that YFT population genetic structure has not been properly assessed so far. In this study, we demonstrated for the first time, the utility of 2b-RAD genotyping technique for investigating population genetic diversity and differentiation in high gene-flow species. Running de novo pipeline in Stacks, a total of 6772 high-quality genome-wide SNPs were identified across Atlantic, Indian and Pacific population samples representing all major distribution areas. Preliminary analyses showed shallow but significant population structure among oceans (FST = 0.0273; P-value < 0.01). Discriminant Analysis of Principal Components endorsed the presence of genetically discrete yellowfin tuna populations among three oceanic pools. Although such evidence needs to be corroborated by increasing sample size, these results showed the efficiency of this genotyping technique in assessing genetic divergence in a marine fish with high dispersal potential

Use of Kidneys with Small Renal Tumors for Transplantation

Population of patients with end-stage renal disease increases every day. There is a vast difference in the number of patients on the waiting list for a kidney transplant, and the number of donors and the gap increases every year. The use of more marginal organs can increase the donor pool. These organs include the kidneys with small renal cell carcinomas (RCTC). There has been a number of reports in the literature about the use of these grafts for renal transplant after tumor excision and reconstruction. These grafts have been reported to be used with good renal function outcomes without an increased risk for malignancy recurrences. We present the collection of evidence for the use of kidneys with RCC for transplantation, technique used for surgical resection, and reconstruction as well as insights on the recommendations for the use of these grafts