Retinoblastoma: childhood cancer by Manrique Arizmendi, Olga Vanessa, Manrique Abril, Fred Gustavo, Bernal-Gomez, Bibiana Matilde

“…It should be mentioned the genetic risk, the type of treatment used in some cases, as well one study from Colombia, where three new mutations in the RB1 gene were identified.…”

Editorial by Miranda, Diego

“…The Sociedad Colombiana de Ciencas Hortícolas - SCCH (Colombian Society of Horticultural Sciences) and Universidad Pedagógica y Tecnológica de Colombia - UPTC as institutions responsible for publication of the Revista Colombiana de Ciencias Hortícolas (Colombian Journal of Horticultural Sciences) extend their greetings to our scientific community overwhelmed by the consequences of the COVID-19 pandemic, which affected availability of economic resources, imposed difficulties for mobility of researchers, and contributed significantly to reducing research and scientific productivity. …”

Descubrir una pasión, proteger un tesoro: herbario UPTC: Entrevista a María Eugenia Morales by Riscanevo , Lida Esperanza, Patiño-Cuervo, Daniela

“…This interview recognizes the academic and research contributions of Professor María Eugenia Morales in the context of her professional development at the Universidad Pedagógica y Tecnológica de Colombia. Thus, a biographical and anecdotal journey is made through a dialogue on aspects that delimited her interests, which allowed her to identify the herbarium as a fundamental research field in her career. …”

Participatory social mapping as a territorial research methodology: a case study in the Afro-Colombian Pacific region by Bonfá Neto, Dorival, Suzuki, Júlio César

“…Thus, during the fieldwork focused on artisanal fishing activities and participatory workshops with students from the municipal school of Bahía Solano (Chocó, Colombia), whichincluded debates, map-making activities, and interviews, we seek to analyze the construction of the territory and the traditional Afro-Colombian territorialities in the Pacific based on their relationship with traditional practices and knowledge involved especially with fishing,which are often hidden or absent in official maps. …”

El From EFL to ELF: In the Need to Incorporate Principles of English as a Lingua Franca in Colombian ELT by Mosquera Pérez, Jhon Eduardo

“…In the international scenario, scholarly literature has already explored the possible benefits of incorporating ELF in the ELT field. In Colombia, however, the empirical and conceptual studies on this area are scarce. …”

A Mathematical Model for the Dynamics of HIV/AIDS Considering Asymptomatic by Ortega Bejarano, José Armando, Cerón, Miller Orlando, Ibargüen Mondragón, Eduardo

“…Numerical simulations are carried out, and parameters are estimated with data from the city of Pasto, in Colombia, from where it can be seen that timely diagnosis and prevalence in the use of antiretrovirals are very effective in controlling the disease. …”

THE ENGLISH UTILITARISM DOCTRINE IN THE COLOMBIAN UNIVERSITY OF THE XIX CENTURY by Báez Osorio, Miryam

“…In the new Grenada, today Republic of Colombia, for the first time, English author Jeremy Bentham was mentioned, when in the newspaper “La Bagatela”, Antonio Nariño published an article highlighting his work in 1811. …”

OTROS ESCENARIOS DEL POBLAMIENTO DURANTE EL SIGLO XVI Y XVII. LA COSTA NORTE COLOMBIANA COMO TERRITORIO REFERENTE DE LAS FORMAS DEL POBLAR by Arteaga Botero, Gustavo Adolfo

“…Los estudios recientes sobre los fenómenos del poblamiento iniciados después del siglo XVI en Colombia muestran que las tensiones entre diferentes poderes afectaron de manera notoria los patrones de asentamiento de las comunidades, e incluso generaron nuevas formas de poblamiento. …”

Job specification from the stakeholders’ perspective: the security guard’s case by Contreras-Pacheco, Orlando Enrique, Reyes-Rodríguez, Juan Felipe, Martínez-Ardila, Hugo Ernesto

“…The field work is carried out on 22 representatives of the interested parties of security guard work in the northeast of Colombia. Subsequently, through a direct approach content analysis, a structured approach to the respective profile is obtained. …”

Expanded Listening as a way of conducting ethnographic research by Meza-Aguirre, José Alberto, Hernández-González, Edilberto, Montes-Miranda, Alexander Javier

“…This proposal stems from the field work of a doctoral dissertation in progress, which relates artisanal fishing and its roots to the territory in the village of la Boquilla, located in Cartagena de Indias, Colombia. In the methodology section, three moments are outlined: i) the researcher's listening in the research setting, ii) the relational listening of the bodies, iii) the reflexivity. …”

Literary Show: A Space to Share Students’ Compositions by Buitrago Escobar, Carmen Julia

“…This paperdescribes a small-scale research project conducted in a public school classroom located in Santa Rosa de Viterbo, Boyacá (Colombia). All the students in our research were sixth grade students1. …”

Implementing tasks that stimulate critical thinking in EFL classrooms by Fúquen Martínez, Aida Yolima, Jiménez Niño, Patricia Kim

“…This article of reflection introduces the insights drawn from a didactic activity implemented in two EFL classrooms at the Uptc (Universidad Pedagógica y Tecnológica de Colombia) in Tunja, by twoteachers belonging to the IIDI (Instituto Internacional de Idiomas). …”

Productivity and competitiveness determination of the small-scale mining at the northern mining district in the state of Boyacá by Bernal, Martha Stella Martínez

“…In recent years, mining in Colombia has been growing to such an extent that the country is considered to be the largest producer of coal in Latin America and the 12th in the world. …”

Design of an electronic device based on cyclic actions as an entertainment tool for social inclusion to people on quadriplegia condition by Munevar, Pablo Antonio Gelvez, C, Harold Michel Torres, Mñoz, Juan Carlos Moreno, Rojas, Luis Eduardo Bautista

“…People with disabilities are excluded from collective environments, in Colombia there are about 260,000 quadriplegia cases, a physical disability caused by paralysis in trunk, legs and arms. …”

La equidad y la constitución de 1991 by Zamudio, Luis E. Vallejo

“…El cuatro de julio del presente año se cumplen 20 años de expedida la Carta Magna, la que generó, en su momento, muchas expectativas en diferentes aspectos. En Colombia la distribución desigual del ingreso y la pobreza siempre han estado presentes dentro de la agenda nacional, por ello, uno de los objetivos en los diferentes planes de desarrollo ha sido combatir la inequidad y elevar el nivel de vida de la población. …”

Changes on the initial conceptions and induction on the nature of mathematics and its didactics of an undergraduate students program in mathematics and statistics by Piratoba Gil, Ruth Paola, Rojas Morales, Clara Emilse

“…The theoretical framework of the project is described in general terms as well as the analytical categories established for the design and validation of an instrument that identified the conceptions of students of the Licenciatura of Mathematics and Statistics, at Pedagogical and Technological University of Colombia, Duitama Branch. Some statistics techniques used to analyze the collected information are highlighted, concluding that freshmen retain a static view of how to teach and assess maths, while the students from the last semesters have modified their conceptions, considering mathematics as a human and social construction in constant dynamism, although with slight overtones of rigidity in their evaluation.…”

Towards the Development of Bilingualism in the Colombian Context by Lisseth Rojas Barreto, Lisseth Lisseth Rojas Barreto

“…La promoción y desarrollo del bilingüismo desde los primeros grados de básica primaria se ha convertidoen una de las mayores metas de las políticas educacionales en Colombia. Por esta razón, las diferentesinstituciones educativas a lo largo del país deben ir a la par con dicho fin a través de la capacitación de su personal administrativo y de enseñanza en este tema. …”

Reseñas de libros y revistas by AUTORES, VARIOS

“…EL COLOR NEGRO DE LA (SIN) RAZON BLANCA: El lugar de las mujeres afrodescendientes en los procesos organizativos en Colombia (Universidad Autónoma de Bucaramanga. 2012) ISBN.978-958-8166-51-3 …”

Políticas urbanas y regionales y la construcción del espacio metropolitano de Medellín. by Agudelo Betancur, Juan Alberto, Montoya, Jhon Williams

“…Medellín y su área circundante es la zona que mejor exhibe en Colombia las características de un proceso rápido de metropolización, tanto funcional como político. …”

Editorial by Avendaño de Barón, Gloria Smith

“…La revista Cuadernos de Lingüística Hispánica, órgano de difusión de la Maestría en Lingüística de la Universidad Pedagógica y Tecnológica de Colombia (Uptc) e indexada enCategoría B por Publindex-Colciencias, llega hoy a su número 25correspondiente al período enero-junio de 2015. …”