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Institution

University of Pamplona

EducationPamplona, Colombia
About: University of Pamplona is a education organization based out in Pamplona, Colombia. It is known for research contribution in the topics: Population & Foreign language. The organization has 1951 authors who have published 1700 publications receiving 9156 citations. The organization is also known as: UP.


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Journal ArticleDOI
02 Jun 2017
TL;DR: In this paper, the authors present the aplicacion of Recocido Simulado (Recocido simulado) in the optimización of parametros de operacion of un convertidor multinivel monofasico in cascada with a modulacion sinusoidal de multiple portadora (MCSPWM).
Abstract: Resumen: Este trabajo presenta la aplicacion del metodo heuristico de “Recocido Simulado” ( Simulated Annealing ) en la optimizacion de los parametros de operacion de un convertidor multinivel monofasico en cascada con un esquema de modulacion sinusoidal de multiple portadora (MCSPWM). El objetivo es encontrar los parametros de modulacion MCSPWM mas apropiados que permitan obtener un THD por debajo del 5% usando el menor numero posible de dispositivos de conmutacion en el inversor y conmutando a la frecuencia mas baja posible. Palabras clave: Recocido simulado, THD, convertidor multinivel, modulacion sinusoidal de multiple portadora

8 citations

25 Apr 2018
TL;DR: The gooseberry is a crop that requires agronomic work such as pruning, fertilization, tutoring, and in addition, environmental conditions for its optimal development.
Abstract: La uchuva (Physalis peruviana L.), es una planta herbacea que tiene una amplia distribucion en america del sur, actualmente se cultiva en Peru, Colombia, Bolivia, Ecuador, California, Sudafrica, Kenia, Egipto, el Caribe, Asia, Hawai y Costa Rica. Colombia se ha situado como el mayor productor y exportador a nivel mundial lo que hace que el cultivo de la uchuva se destaque como un potencial de desarrollo promisorio para las diferentes regiones productoras del pais, esto se debe a los excelentes precios del mercado extranjero y la viabilidad de la fruta en pos cosecha. La uchuva es un cultivo que requiere labores agronomicas tales como la poda, fertilizacion, tutorado, y ademas de esto condiciones ambientales determinadas para su optimo desarrollo. Los distintos derivados de esta baya se comercializan con facilidad ademas de todos los beneficios que aportan al cuerpo. Palabras clave: Cultivo, uchuva, exportacion, labores agronomicas. ABSTRACT The gooseberry (Physalis peruviana L.), is an herbaceous plant that has a wide distribution. It is currently cultivated in Peru, Colombia, Bolivia, Ecuador, California, South Africa, Australia, Kenya, India, Egypt, the Caribbean, Asia, Hawaii and Costa Rica. Colombia has been situated as the largest producer and exporter worldwide, which makes the cultivation of gooseberry, stands out as a promising development potential for the different producing regions of the country, this is due to the foreign excellent market prices and the viability of the fruit in POS harvest. The gooseberry is a crop that requires agronomic work such as pruning, fertilization, tutoring, and in addition, environmental conditions for its optimal development. The different derivatives of this berry are easily marketed to all the benefits they give to the body. Key Words: Cultivation, gooseberry, exportation, agronomic work

8 citations

Journal ArticleDOI
TL;DR: In this article, the mean activity coefficient values for NaCl in the mixture (water + ionic liquid) (IL) as solvent (IL being 1-ethyl-3-methyl-imidazolium methanesulfonate, [Emim][MeSO3] or 1ethyl- 3-methylmethyl-injectorium ethyl sulfate (EMIM][EtSO4]) were determined from the electrode potential measurements of the cell: Na-(ISE) | NaCl (mA), ILs (w), H2O (1
Abstract: Mean activity coefficient values for NaCl in the mixture (water + ionic liquid) (IL) as solvent (IL being 1-ethyl-3-methyl-imidazolium methanesulfonate, [Emim][MeSO3] or 1-ethyl-3-methyl-imidazolium ethyl sulfate, [Emim][EtSO4]) were determined from the electrode potential measurements of the cell: Na–(ISE) | NaCl (mA), ILs (w), H2O (1 – w) | Cl–(ISE) (ISE means ion selective electrode) at total ionic strengths ranging from 0.10 to 3.20 mol·kg–1 and at 298.15 K. Different weight fractions (w) of ILs (w = 0.01, 0.05, 0.1, 0.2, 0.3 and 0.4) were used. Data were fitted to the Pitzer model and the ion interaction parameters β0, β1, and Cγ were calculated. The osmotic coefficients of the solvent (water + IL), the solvent activity, the excess Gibbs free energy for the system were calculated. The negative sign in the excess free energy for the NaCl + IL+ H2O solvent mixture at 298.15 K suggests a spontaneous aggregation of {[Emim][MeSO3] + H2O} or {[Emim][EtSO4] + H2O}.

8 citations

Journal Article
01 Dec 2012-HOW
TL;DR: This paper conducted a study to understand how a process of reflection helped five foreign language student teachers throughout their first teaching experience and found that reflection is a way to help student teachers to improve their teaching practice.
Abstract: The present study was an attempt to understand how a process of reflection helped five foreign language student teachers throughout their first teaching experience. This study was conducted in the classrooms of five public schools in Colombia where English was taught to high school students. Data were collected through classroom observations, students’ reflective journals, lesson plans and semi-structured interviews. Findings revealed that reflection is a way to help foreign language student teachers to improve their first teaching practice. The analysis was based on the light of two theories, reflection in action and reflection on action from Schon (1987) and Van Manen’s (1977) three levels of reflection.

8 citations

15 Oct 2014
TL;DR: For instance, this paper found that 50% de la población estudiada presenta porcentaje bajo de uso de condon en todas las relaciones sexuales durante los ultimos doce meses, ello evidences la necesidad de fortalecer acciones en salud que permitan la sistematizacion de medidas de prevencion and tratamiento para aumentar el uso del preservativo in adultos jovenes.
Abstract: El conocimiento de las practicas sexuales en los adultos jovenes es necesaria para ejecutar acciones preventivas enfocadas a la disminucion de embarazos no planeados y enfermedades de transmision sexual. Objetivos: Determinar la prevalencia de uso de condon en todas las relaciones sexuales con penetracion durante los ultimos doce meses y factores asociados en estudiantes universitarios entre 18 y 26 anos de edad. Materiales y metodos: Se realizo un estudio descriptivo trasversal, en estudiantes universitarios, el tamano de la muestra fue de 468 participantes, la informacion se recolecto por medio de un cuestionario auto-diligenciable. Resultados: El 50,6% de la poblacion era de genero masculino, la edad media de toda la poblacion fue 21,3±2,3 anos. El porcentaje de personas que usaron condon en todas las relaciones sexuales con penetracion durante los ultimos doce meses fue de 35,3% (IC95% 30,8% - 39,7%); al realizar asociaciones se encontro que no haber tenido enfermedades de trasmision sexual (O.R. 4,45 I.C. 95% 2,07.9, 58) muestra asociacion y se mantiene al realizar los ajustes en el modelo multivariado. Conclusiones: La poblacion estudiada presenta porcentaje bajo de uso de condon en todas las relaciones sexuales durante los ultimos doce meses, ello evidencia la necesidad de fortalecer acciones en salud que permitan la sistematizacion de medidas de prevencion y tratamiento para aumentar el uso del preservativo en adultos jovenes.

8 citations


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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20232
202211
202198
2020178
2019157
2018153