Approximation to the state of the art in regards to the curricular field production in Colombia (2000-2019) by Agudelo Cely, Nubia Cecilia; Universidad Pedagógica y Tecnológica de Colombia

“…The state of  knowledge – an approximation, puts together the research commitments and the comprehensions, the active participation of  social actors in communities, the changes in editorial policies- the institutional editorial houses. …”

Validation of black spot [(Pseudocercospora purpurea (Cooke) Deighton] management strategies in avocado crops in northern Tolima (Colombia) by Rodríguez-Polanco, Eleonora, Reina-Noreña, Julian Alberto, Tamayo-Molano, Pablo Julian, Rodríguez-Polanco, Luz Astrid, Varón-Devia, Edgar Herney

“…In the latter, DMI fungicides (demethylation inhibitors), even without resistance reports, and fungicides with a mixture of two active ingredients (DMI and QoI) in interspersed application and sometimes in conjunction with CuOCl during periods of higher susceptibility to BS were used, aiming to reduce the resistance induction risk in P. purpurea.…”

The phenomenon of the recruitment of children and adolescents by illegal organized armed groups : case of Colombia. by Mendoza Tovar, Víctor Hugo

“…The Peace Treaty signed in 2016 by the Colombian State and the FARC guerrilla allowed for a reduction in the recruitment of children and adolescents; however, the increase in the number of ex-FARC dissidents and Organised Armed Groups (GAO) present in the national territory, have once again used recruitment as an internal policy to expand the ranks of combatants and their criminal activities, even though International Humanitarian Law (IHL) and national and international jurisprudence prohibit it. …”

Heterogeneous photocatalysis and an anaerobic biological process for leachate treatment by Becerra Moreno, Dorance, Caicedo Cáceres, Neldy Yareth, Velásquez Lázaro, Claudia Marcela, Machuca Martínez, Fiderman, Soto Verjel, Joseph Wbeimar

“…The research used a coupling heterogeneous photocatalysis (TiO2-UVsolar) and an anaerobic biological process (Specific Methanogenic Activity Test) to study the treatment of leachate from a landfill in Norte de Santander (Colombia). …”

Operational Risk Management in the Reverse Logistics Process of Used Vehicle Oil by Paredes-Rodríguez, Andrés-Mauricio, Grisales-Aguirre, Andrés-Felipe, Sánchez-Zambrano, David-Alberto

“…There is a high volume of this waste generated within the country, and poor management of the activities of recovery can generate environmental, economic, and social problems. …”

Physiological and sanitary quality of black bean seeds dependent on storage time and initial seed moisture content by Menegaes, Janine Farias, Nunes, Ubirajara Russi, Fiorin, Tatiana Tasquetto, Swarowsky, Alexandre, Munareto, Janete Denardi

“…Black beans (Phaseolus vulgaris L.) are a species of great importance for family farming, both for food security and socioeconomic activity. The objective of this work was to assess the physiological and sanitary viability of black bean seeds stored with different initial moisture contents and cold storage periods. …”

The development of random thinking using a playful strategy as a pre-exercise in fourth and fifth grade students. by Riveros Páez, María Alejandra

“…This document addresses the subject of Random Thinking using a playful strategy as a pre-exercise, this study is developed with students in the fourth and fifth grades of the Loma de Tigre campus in San Isidro de Chichimene, where the objective is to “Develop random thinking and data system in fourth and fifth year students using play as a pre-exercise to improve the performance of mathematical thinking in elementary school at the Loma de Tigre campus ”study that was carried out according to the precepts of the research Mixed with a descriptive approach, it was taken as theoretical references to Polya, Batanejo, Piaget, among others, who contemplate aspects inherent to the learning of mathematics and the development of the person, which allowed to combine these two aspects and from there to design the proposal of intervention, from where it was possible to obtain results on the initial level of the students in the management of random thinking, or Once they were intervened with the proposed activity, the exit test was applied again and the comparison was made, achieving as results that the project left a positive impact on the students and they significantly improved in the mastery and management of random thinking. …”

Communicate...Reading and Writing Strategy by Hernández-Lozano, Lissa-Lorena, Galvis-Berrio, Luz-Omaira, Tibavizco-Erazo, Sandra-Katherin

“…The method used in this research was based on Action Research, the research paradigm was socio-critical, the research approach was qualitative of an ethnographic type; Regarding the research route, it was developed according to the stages, phases and transversal activities to the schedule, dates and the relationship with the proposed objectives. …”

Global Value Chains in Economic Theory: Disruption or Continuity of the Center-Periphery Matrix in Light of the History of International Trade? by Villarreal , Julio Francisco, Villasante Calderón, Nuria Carolina

“…In this sense, the implications of this research suggest the need for a reexamination, both at the national and interregional levels, of the currently inequitable terms governing international trade, along with a more active promotion, at both levels, of development policies that prove to be beneficial for economically disadvantaged states.…”

Educational leadership: skills of good public school principals in Panama by Esbrí Montoliú, Miguel Ángel, Durán González, Rosa Elena

“…Method: This project, of a mixed nature, mainly takes up the perceptions and experience of school principals on how they manage schools, the characteristics of principals, characteristics of schools, management course and activity, and institutional policy.Strategies / data collection: Quantitatively, the sample was taken from the general characterization of the educational centers registered in the educational system of the Republic of Panama, for the year 2020, provided by the Statistics Office of the Ministry of Education. …”

Wordk, word that works by De la Ossa, Dora Piñeres, García, Javier Hernández, Mendoza, Estella Simancas

“…It does part of the agreement of collaboration RHELLA for the achievement of publishing joint activities.…”

The oral Storytelling: An alternative for the development of an educational experience with gender perspectives by Peña Lora, Marianela Rosa

“…In the conclusions, it expresses how the achievement of these aims has passed, for a set of activities in the teaching, research and extension areas. …”

Inventory of the entomofauna associated with the culture of yellow pitahaya (Selenicereus megalanthus Haw.) in Briceño (Boyacá) by Patiño-Tiria, Héctor Iván, Martínez-Osorio, Jhon Wilson, Alvarado-Gaona, Álvaro Enrique

“…Samplings were realized using active methods, such as manual direct capture, use of network, entomological vacuum cleaner and passive methods using traps with attractives and traps of fall. …”

Pinneapple peel as adsorbent of typical textile industry dyes by Ardila Ramírez, Carolina, María Palacio, Ángela Maria, Barrera Zapata, Rolando

“… Using the same conditions and activated charcoal as adsorbent, the contaminants recovery was 34.1 ± 2.1, which is similar to that achieved when the pineapple peels are recovered and reused two times in the process. …”

Genotoxic damage induced by extracts of peach, Prunus persica grown in Cácota Norte de Santander by Meléndez Gélvez, Iván, Quijano Parra, Alfonso, Yáñez, Luis Fabián

“…The comet assay was used for the evaluation of gemoxic activity. The results obtained indicate that the peach extracts induce lesions in the DNA of human lymphocytes, which vary according to the dose of the extract. …”

Representaciones semióticas en números racionales by Granados Niño, Nancy Johana

“…The theory on which the study was based is Duval's (2004), where the three cognitive activities related to semiosis were observed, described and interpreted, which are: presence of semiotic representation, treatment and conversion. …”

Mujer y universidad by Valpuesta Fernández, María Rosario

“…This incorporation to the public sphere is reflected likewise in the access of women to University, whose presence was getting stronger, so that they were allowed to participate actively in the so called economy of knowledge, an ambit in which they had been excluded until this moment. …”

El saber y la educación en las sociedades de control by Diagama, Camilo

“…In light of this postulates, we here offer a diagnose of the situation in which knowledge and education currently stand, taking into account the social and technical role played by accreditation processes of academic activities. …”

Epoxidación diastereoselectiva heterogénea de r-(+)limoneno con complejos de sales de manganeso (III) by Cubillos Lobo, Jairo Antonio

“…However,  heterogeneous catalysts have lower  activity  than  its  homogeneous  counterpart.  Additionally, heterogeneous catalysts based on ionic bond have great tendency to  the leaching.  …”

Modernismo y Regeneración en la Atenas suramericana by Cuellar, Camilo Andrés

“…., based on  the  recurrence of political  leaders  inclined  to  literary activities,  represented byfigures such as Miguel Antonio Caro, Rafael Nuñez and Jose Manuel Marroquín. …”