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URI permanente para esta colecciónhttp://10.0.96.45:4000/handle/11056/14724

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Curso: Recursos didácticos para el aprendizaje una experiencia en la virtualidad. Eje temático: Calidad y Materiales educativos y Herramientas Tecnológicas en Educación a Distancia
(Fundación Latinoamericana para la Educación a Distancia, 2008) Vílchez Quesada, Enrique; Ulate Solís, Gaby
Abstract: Virtual learning in recent years is representing an important educational approach with its own particularities, both in the role of the participating agents and in the learning environment. Virtuality has been incorporated into the scenarios of educational institutions as a response to the demands and needs of the new generations, which require the formation of a series of skills to function in a globalized society in terms of information and the media. . At the National University (UNA) of Costa Rica, these processes of permanent change have led to the consolidation of a Program called "UNA Virtual", whose main objective has been to spread the use and train university teachers in the use of technologies. for training via the Internet. Given these initiatives, a unique experience was carried out with this research project in the Educology Division of the UNA, designing and implementing a degree course called "Teaching Resources for Learning", which due to its curricular characteristics was ideal. to study virtuality in a face-to-face context. In addition to this, the experience has made it possible to give continuity to the process in projection to the year 2008, institutionalizing the course in the nine careers for which it is taught. With this article, the main results obtained in three dimensions are published: the virtuality in presence in the particular context of the Educology Division of the National University of Costa Rica, conjectures of the beliefs of teachers and students regarding the advantages and disadvantages of a virtual educational model and evaluation of the activities, materials and structure of the Didactic Resources for Learning course under a bimodal approach.
Time delay performance analysis of sensor allocation strategies on a WSN
(ACWR 2011 - Proceedings of the International Conference on Wireless Technologies for Humanitarian Relief, 2011) BAYANI, MAJID; Barrantes, Gabriela; Marín, Gabriela
In many of query-based WSN applications, response time factor is an essential issue. Overall performance under different sensor placements depends on the pattern of queries requested from the network, which in turn might depend on the physical segmentation of the field. This paper explores three predefined configurations in order to compare the time delay performance. The experiments showed that the Uniform distribution of the nodes was the strategy that obtains the fastest response time, and as expected, Random is the one with the slowest.
E-marketing in Costa Rican export companies: Results from a field survey
(IEEE EXPLORE, 2012-06-25) Mata, Francisco; Quesada, Ariella
We present the results of a field survey aimed at analyzing ICT adoption and use, particularly related to e-marketing, in Costa Rican export companies. The e-commerce readiness/intensity/impact model, developed by the Organisation for Economic Cooperation and Development (OECD), was adapted for this field survey. The results obtained show that, in general, the surveyed companies present low e-marketing readiness and intensity, with the exception of service companies and microenterprises. Furthermore, there is no evidence of a clear perceived positive ICT impact on the exports taking into account all companies, neither considering their sector or size. Nevertheless, large companies perceive a positive effect, which is consistent with a sustained increase in their export value. Based on the previous results, we discuss factors that might influence the use of e-marketing and present recommendations to increase its use in Costa Rican export companies. In addition, suggestions for further research are included.
Gender gap in computer science programs from Costa Rican Public universities: Are Women Really Becoming Extinct?
(IEEE EXPLORE, 2012-10-01) Mata, Francisco; Quesada, Ariella; Raventós, Gabriela Marín
There is evidence that women tend to be underrepresented in computer science programs (CS) in many countries. Based on this fact, we analyzed the gender situation in Costa Rica finding that this situation also applies to the four public universities in the country. Furthermore, similar to the case of the U.S., the percentage of women graduating from CS programs from such universities is decreasing. Based on previous studies, we attempt to explain the gender gap in Costa Rican public universities, and present recommendations to reduce it
The relationship between information and communication technology and productivity in Costa Rican companies
(IEEE Explore, 2012-10-01) Mata, Francisco; Quesada, Ariella; Ruiz, Keynor; Orozco, Jeffrey
This paper presents the results of a research aimed at studying the effect of information and communications technology (ICT) on productivity, using the data of the Costa Rican innovation survey 2008. The results obtained show that the ICT variables considered contribute to explain the productivity of the companies participating in the above-mentioned survey. However, these variables have an indirect, yet not direct, contribution to the productivity. This might be explained to limitations in the data used.
Integrated curriculum based on projects: Opportunities and constraints a case study in systems engineering
(39th Latin American Computing Conference, CLEI 2013, 2013) Mora, Sonia; Coto, Mayela
The Universidad Nacional is making significant efforts to improve the professional performance of graduates according to the needs of the society and the industry. In particular, the School of Informatics has been exploring the opportunities to implement, through the use of a pedagogy oriented to problems and projects, a curricular integration between diverse areas of knowledge in the curriculum. From this perspective, an initial exploratory study was carried out, with the aim of integrating the areas of programming, databases and systems engineering. The findings show several limitations, such as mismatches between the course contents, lack of faculty commitment to collaborative work and student resistance. They also show the need of establishing strategies to create, from the early years of the curriculum, the necessary conditions to promote a positive attitude towards curricular integration processes and therefore overcome, at least partially, the identified limitations.
Usage and limitations of free and open-source software in Costa Rican local governments
(IEEE Explore, 2013-10-07) Mata, Francisco; Quesada, Ariella
This paper presents results about the use and barriers that face free and open source software in the local governments in Costa Rica. Through an electronic survey, information was gathered from such governments, allowing to make a diagnostic of the situation.
Innovation management in software: Case studies from the Costa Rican software development industry
(IEEE EXPLORE, 2013-10-07) Mata, Francisco
We study in this work innovation in several Costa Rican software development companies, in order to associate to each of them a model of innovation management, according to the literature. This is done with the purpose of finding differences in innovation practices in such companies, and relate them with the type of innovations obtained in these companies.
A proposal for implementing PBL in programming courses
(XL Latin American Computing Conference, CLEI 2014, 2014) Mora, Sonia; Coto, Mayela; Alfaro Salazar, Georges
In the search of teaching strategies more consistent with the current needs of the industry and with the new university pedagogical model, an action research project was carried in the programming courses of the study program of Systems Engineering at the Universidad Nacional of Costa Rica (UNA). The project gradually introduced the principles of autonomy, collaborative learning and shared assessment. This paper reports the experience gained during the three years of the project in terms of a specific proposal for implementing the three principles in the area of programming. Aspects to be considered for an initiative of this kind to be successful are also presented.
Programación lineal con apoyo de Mathematica y GLP
(Universidad Nacional (Costa Rica), 2014) Vílchez Quesada, Enrique
En el contexto del curso EIF-405 Investigación de Operaciones impartido en la Escuela de Informática de la Universidad Nacional de Costa Rica, se han desarrollado una serie de iniciativas metodológicas para abordar el tema de programación lineal, automatizando específicamente dos métodos de resolución: el método gráfico y el símplex. Ambos se han sistematizado utilizando el lenguaje de programación del conocido software comercial denominado: Mathematica. En el presente trabajo se comparte el código de programación desarrollado y disponible en la dirección ULR:http://www.escinf.una.ac.cr/mathematica/index.php/archivos-de-mathematica y además, se muestran dos aplicaciones adicionales para la enseñanza y el aprendizaje de este tema, el software GLP que consiste en un visualizador gráfico de problemas de programación lineal en dos dimensiones y el multimedia “Programación lineal con Mathematica” creado por el autor de esta propuesta como un recurso complementario para el profesor o el estudiante, con la finalidad de aprender a utilizar Mathematica como una herramienta de apoyo de cálculo simbólico y numérico en esta área de conocimiento.
PBL in Systems Engineering Education: the Students’ Perspective
(PAEE association, 2015) Cortés Chavarría, Rita; Sandoval-Carvajal, Maria-Marta; Lizano Madriz, Fulvio
Assessment of educational innovation efforts must be integral. Among other, it is necessary to consider students' perspective on the impact of educational innovation in their formation. This becomes even more critical if educational innovation efforts include the use of a model like the Problem Based Learning. This paper presents the results of a survey study made in a context where problems take form of software development projects, made by systems engineering students in real contexts. The study aims to measure the impact of the implementation of the PBL model in the formative process of system engineering students. The study was conducted by considering regular students of the National University (UNA) in Costa Rica. Data collection was face to face with the students and measured various aspects of the students’ perspective on the educational model. Results suggest a high motivation and a positive effect on students. Their willingness to learn, apply knowledge and develop their skills in developing real software engineering projects, was identified as relevant results of the educative process. Student's satisfaction is evidenced by the achievement obtained to complete the project and implement the software. The assessment of the skills varied throughout the educative process. However, aspects as the project management, leadership, and team work maintain a high valuation and are fundamental pillars for the implementation of the development methodology used during courses.
PBL en carreras de Ingeniería de Sistemas: una perspectiva Bottom - Up
(Aalborg University Press, 2015) Sandoval-Carvajal, Maria-Marta; Cortés Chavarría, Rita; Lizano Madriz, Fulvio
La academia enfrenta cada día más retos relacionados con el desarrollo de competencias de los estudiantes. La implementación de filosofías de aprendizaje como el PBL (Problem Based Learning) representa un esfuerzo iniciado con apoyo de los niveles superiores en las universidades (Top-down), o desde niveles operativos (bottom-up). Este artículo describe la implementación de la filosofía PBL desde una perspectiva bottom-up, en la Universidad Nacional (UNA), Costa Rica. La implementación específica inició en 2008 en los cursos de Ingeniería de Sistemas. En esta implementación, varias habilidades técnicas y blandas fueron integradas considerando una estrecha colaboración con la industria. En este contexto, los estudiantes lideran técnicamente un proyecto de desarrollo de software en una empresa real. Entre otras cosas, la implementación de PBL incluyó diferentes técnicas tales como sensibilización, autocapacitación, análisis comparativos de la teoría y la práctica, así como asesorías formales e informales. Para medir el impacto de esta implementación, hemos conducido un estudio de encuesta con la participación de estudiantes, egresados y representantes de la industria. Los resultados del estudio sugieren que una iniciativa de implementación del PBL desde el nivel jerárquico más bajo, es percibida como una experiencia beneficiosa para las empresas. Adicionalmente, los estudiantes y egresados sienten que han aprendido más y al mismo tiempo, contribuyen al desarrollo del país. El desarrollo de los proyectos universidad – industria y el proceso de aprendizaje, empoderan a los estudiantes, retroalimentan las mejoras a los planes de estudio, facilitan el proceso de aprendizaje a través del contacto con una organización y contribuyen al desarrollo de las organizaciones.
Sistema Sectorial De Innovación De Tecnologías De Información Y Comunicación En Costa Rica: Actores Involucrados
(Universidad Nacional (Costa Rica), 2015-10) Quesada Rosales, Ariella; Mata Chavarría, Francisco J.
Este artigo tem como objetivo identificar e descrever os principais atores chaves que participam no sistema de inovação sectorial das tecnologias da informação e da comunicação (TIC) na Costa Rica e que interagem para o desenvolvimento do cluster associado a ele. Para este fim é utilizado o modelo de tripla hélice, o qual considera os principais atores na academia, indústria e governo, a fim de descrever os processos de articulação e cooperação entre estes atores para a formação de recursos humanos; o pesquisa, desenvolvimento e inovação; e a criação de novas empresas. Os resultados mostram que nas interações falta de coordenação entre as partes interessadas. Isso mostra problemas para a consolidação sector das TIC na Costa Rica e sugere a necessidade de melhorar a institucionalidade associada a este sector.
Evaluación del Potencial de Crecimiento del berrugate Lobotes pacíficus (Gilbert, 1898) (Perciformes, Lobotidae) en sistemas de recirculación
(Universidad Nacional (Costa Rica), 2015-11) Chacón Guzmán, Jonathan; Carvajal Oses, Milagro; Herrera-Ulloa, Angel; Toledo‐Agüero, Pedro
El berrugate Lobotes pacíficus es una especie de la costa pacífica latinoamericana con características biológicas potenciales para la acuicultura. Este trabajo evalúa su capacidad de crecimiento en sistemas recirculados. Se mantuvieron 132 juveniles silvestres en 6 tanques circulares de 10m3 con un sistema de recirculación (UV, Protein skimer, filtro mecánico y biológico) y flujo de agua de 1.8 l/s. En tres tanques se introdujeron 22 juveniles con un peso de 8,8±0,7g. Estos fueron alimentados con extrusado para pargo mancha Lutjanus guttatus (50% proteína, 12% lípidos), y tres tanques con juveniles de 44,7±06g alimentados con sardina gallera Opisthonema libertate (1,46±0,56% lípidos y 23,38±0.01% proteína). Se alimentó a saciedad tres veces al día. Se tomaron registros catorcenales de peso para determinar la tasa de crecimiento absoluto (TCA), la tasa de crecimiento específica (TCE) y el factor de conversión alimenticia (FCA). La supervivencia y las variables físico químicas oxígeno disuelto, temperatura, salinidad, pH, nitrógeno amoniacal y nitritos se monitorearon diariamente. Los resultados mostraron después de 100 días de alimentación, bajos valores de crecimiento en los peces alimentados con extrusado debido al bajo consumo (Incremento en peso 38,9g, TCA 0,4±0,1g/día, TCE 1,7±0,1%PC/día, FCA 1,9±0,2), no así en los peces alimentados con O. libertate quienes presentaron valores de crecimiento mayores en comparación con otras especies (incremento en peso 567,5g, TCA 5,7±1,5g/día, TCE 2,6±0,2 %PC/día, FCA 2,2±0,1) no obstante la supervivencia (72.7%) fue menor respecto a los alimentados con pienso (98.3%), relacionado especialmente a que el amonio y nitritos fueron superiores en el tratamiento con O. libertate (0,01±0,07 y 0,03±0,13mg/l 1 pienso y 0,3±1,0 y 0,9±2,2mg/l 1 sardina). Lobotes pacíficus demuestra tener gran potencial de crecimiento en sistemas de cultivo, pero se debe profundizar en la elaboración de un pienso balanceado que sea especie especifico.
E-commerce and coffee in Costa Rica: Case studies of costa rican roaster companies
(Proceedings - 2015 41st Latin American Computing Conference [CLEI], 2015-12-17) Mata, Francisco J.; Quesada, Ariella
This paper presents the results of an exploratory multiple case study about the use of e-commerce for selling roasted coffee from Costa Rica. Four Costa Rican roasting companies are considered. This study is aimed at addressing the questions of why such companies use e-commerce and how they do so. Based on the results obtained, we propose possible key success factors for using e-commerce in this type of companies. Notwithstanding the results of this study cannot be generalized, due to its qualitative nature, the proposed factors can guide similar studies in Costa Rica and other coffee-producing countries. This research contributes to the study of e-commerce in developing countries, in particular in relation to their own products. For this reason, it assists in understanding how information technology can support a greater economic and social development in these countries.
Can e-commerce provide a solution to the coffee paradox?: The case of Costa Rica
(IFIP Advances in Information and Communication Technology, 2016-09-12) Mata, Francisco; Quesada, Ariella; Mata-Marín, Gabriela
In spite of the boom in coffee consumption worldwide, farmers in coffee-producing countries are subject to increasingly lower prices. This situation is referred to as the “coffee paradox”, and affects the livelihood of millions of coffee farmers and their associated workers. ICT may provide a way to address this problem by eliminating intermediaries in the global value chain for coffee; therefore, we study the effect of e-commerce systems used in Costa Rica for trading coffee on prices received by local actors and discuss whether these systems provide a solution to the coffee paradox. Based on this discussion, we propose a new e-commerce system.
Curso virtual sobre la enseñanza y el aprendizaje de las funciones ofrecido por la actividad académica Matemática para la Enseñanza Media, Universidad Nacional
(Universidad Nacional (Costa Rica), 2017) Alfaro Arce, Ana Lucía; Alpízar Vargas, Marianela; Morales-López, Yuri
Durante 2016 la actividad académica Matemática para la Enseñanza Media (MATEM) realizó un curso de actualización para los docentes participantes en dicha actividad, con la modalidad de curso virtual. El desarrollo e implementación del curso contempló: el diseño pedagógico, el diseño e implementación del curso en la plataforma Moodle, el desarrollo de diversos recursos de apoyo a los contenidos, aplicación de evaluaciones sumativas y formativas. En este documento se presenta el análisis que se realizó con algunos de los insumos recolectados en la primera sesión de dicho curso por medio de un foro donde los docentes externaron las razones por la cuales consideraban que los estudiantes del curso MATEM-Precálculo fallaban preguntas de nociones básicas de funciones. La implementación de este curso permitió: 1) tener contacto frecuente con los docentes inscritos en diversas regiones de Costa Rica, durante todo 2016 y 2) enlistar una serie de dificultades que presentan los estudiantes en conocimientos fundamentales de las funciones.
Ejemplo de la incursión de las mujeres en la robótica La experiencia en el proyecto Proyecto Formación de Formadores en Robótica para Colegios en áreas Vulnerables de Costa Rica
(UTN - Fac. Regional de Córdoba, 2017) Fonseca Solano, Pedro; Hernández Ruiz, Irene
En este trabajo se presentan dos resultados obtenidos por el proyecto Formación de Formadores en Robótica para Colegios en Áreas Vulnerables de Costa Rica. En primer lugar, se presentan las actividades y resultados de las profesoras formadas por el proyecto en el área de la robótica. Posteriormente, presentan la experiencia de las alumnas que han sido formadas por sus docentes (hombres y mujeres).
Contributing to the OER movement: A practical experience
(IEEE, 2017) Mora Rivera, Sonia; Coto, Mayela
Open educational resources (OER) propose a culture of sharing to make knowledge a good for humanity. The educational field recognizes the potential of OER to expand access to education and the Information and Communication Technologies (ICT) provide the context for sharing, using and reusing this knowledge. In addition, the OER movement offers scholars the opportunity to rethink their educational practice. Although the literature has shown that academics in general have the practice of sharing their educational resources with close colleagues, it is also true that open and large-scale exchange through appropriate licensing and institutional repositories is an emergent move in many universities. This paper presents an exploratory study to promote, among academics and students, their participation in the OER movement. The experience allowed to generate knowledge on the subject, to develop and validate a set of educational resources to later create in the institutional repository the first OER community.
Experiencias Y Lecciones Del Sector Agroalimentario En I+D+I En Apoyo Al Sector De Tecnologías De Información Y Comunicación En Costa Rica
(Observatorio Tecnológico de la Universidad de Alicante (OVTT UA), 2017) Quesada Rosales, Ariella; Mata Chavarría, Francisco J.
El presente estudio pretende analizar las acciones realizadas en investigación, desarrollo e innovación (I+D+i) por el gobierno, la academia y la industria para consolidar el sector agroalimentario en Costa Rica con el fin de identificar experiencias y lecciones que puedan ser aplicadas al sector de tecnologías de información y comunicación (TIC) en ese mismo país. Con este objetivo, se utilizó el modelo de la triple hélice para determinar y analizar las relaciones e interacciones de los actores que participan en las mencionadas actividades tanto en el sector agroalimentario como en el TIC en Costa Rica, y para compararlas y contrastarlas. Del anterior análisis, se concluye que la institucionalidad creada y la visión integradora de los actores participantes en el sector agroalimentario han permitido desarrollar acciones de cooperación más claras y sofisticadas en el sector agroalimentario, en comparación con lo que acontece en el sector TIC, lo cual contribuye a una mayor consolidación de este primer sector en el país. Por lo cual, es necesario fortalecer la participación de estos tres actores en el sector TIC para promover un ambiente que favorezca la generación de investigaciones y proyectos innovadores con participación de los tres sectores. Con base en lo observado en el sector agroalimentario, se proponen recomendaciones para el sector TIC en Costa Rica; sin embargo, para su aplicación es necesario reconocer que ambos sectores cuentan con realidades históricas, socio-económicas y políticas diferentes.

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