Pasto, Colombia
Pasto, Colombia

The University of Nariño , also called Udenar, is a public, coeducational, research university based primarily in the city of Pasto, Nariño, Colombia. It is the largest higher education institution by student population in the department with 9,867 students. Its origins can be traced to 1712, but it was officially established by governor Julian Buchelli through decree 049 of November 7, 1904.The university has three campuses in Pasto. The main one, known as the University City of Torobajo, is located in the northern part of the city in the neighborhood of the same name, the second in the neighborhood of San Vicente is known as the Panamericana campus, and the last is in the city's downtown, which was its first location. Udenar has several satellite campuses across the department in the cities of Ipiales, Samaniego, Tumaco, and Tuquerres. The university offers education at technological, undergraduate and postgraduate levels, with 56 academic programs, which includes 5 master's and a doctorate in education. It is also the host for 79 research groups recognized by COLCIENCIAS.The university is member of the Association of Colombian Universities and the Iberoamerican University Network Universia. Wikipedia.


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Giraldo Y.,University of Narino
Nuclear and Particle Physics Proceedings | Year: 2015

Here we show that the Weak Basis Transformation is an appropriate mathematical tool that can be used to find texture zeros in the quark mass matrix sector of the Standard Model. So, starting with the most general quark mass matrices and taking physical data into consideration, it is possible to obtain more than three texture zeros by any Weak Basis transformation. The general quark mass matrices considered, were obtained through a special weak basis transformation wherein the up-quark mass matrix (down-quark mass matrix ) has been taken to be diagonal and the down-quark mass matrix (up-quark mass matrix), in general form, includes the Cabibbo-Kobayashi-Maskawa matrix. © 2015 Elsevier B.V..


Buenoa penta sp. n. and Buenoa analoga sp. n., are described from Tumaco municipality on the Pacific coast of the Department of Nariño. A key to species of Buenoa in Colombia is given. Copyright © 2012 · Magnolia Press.


Giraldo Y.,University of Narino
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2012

Stimulated by the recent attention given to the texture zeros found in the quark mass matrices sector of the standard model, an analytical method for identifying (or excluding) texture zeros models will be implemented here. Starting from arbitrary quark mass matrices and making a suitable weak basis transformation, we are be able to find an equivalent quark mass matrix. It is shown that the number of nonequivalent quark mass matrix representations is finite. We give exact numerical results for parallel and nonparallel four-texture zeros models. We find that some five-texture zeros Ansätze are in agreement with all present experimental data, and we confirm definitively that six-texture zeros of Hermitian quark mass matrices are not viable models anymore. © 2012 American Physical Society.


Pantoja A.,University of Los Andes, Colombia | Pantoja A.,University of Narino | Quijano N.,University of Los Andes, Colombia
IEEE Transactions on Industrial Electronics | Year: 2011

Power distribution networks that include distributed generation need new control strategies based on distributed and hierarchical structures. For these systems, a replicator dynamics strategy for dynamic resource allocation in the dispatch of distributed generators in a microgrid is presented. This approach uses the characteristics of a defined subsystem in order to offer a simple algorithm with optimal and feasible solutions even in cases where other methods do not satisfy the problem's constraints. To compare the performance of the replicator dynamics strategy and to analyze the optimality of the obtained solutions, a market multiagent-based scheme is adapted. The results are implemented in a simulation model for different scenarios to show the applicability of the proposed strategy. © 2011 IEEE.


Padilla-Gil D.N.,University of Narino
International Journal of Tropical Insect Science | Year: 2013

Immature stages of five species of Gerridae are described and illustrated for the first time: Rheumatobates longisetosus Polhemus & Manzano, Rheumatobates probolicornis Polhemus & Manzano, Rheumatobates peculiaris Polhemus & Spangler, Telmatometra whitei Bergroth and Telmatometroides rozeboomi (Drake & Harris). The first two were distributed in the Pacific region of Colombia, R. peculiaris distributed along the Pacific region of Colombia to Ecuador, T. whitei distributed from Mexico to Colombia and Ecuador, T. rozeboomi from Central America to Colombia and Ecuador. The five species were collected in the southwest of Colombia, near the Pacific coast. Copyright © icipe 2013.


Rhagovelia rosarensis sp. nov. and Rhagovelia aguaclara sp. nov.from south-west Colombia are described and placed in the salina group. A key to the species of Rhagovelia in the salina group from Colombia, and habitat and distribution information for some species are provided. Copyright © 2010. Magnolia Press.


Padilla-Gil D.N.,University of Narino
Zootaxa | Year: 2010

Buenoa funensis sp. n. from the high-Andean mountains in the south-west of Colombia is described, and a key to the males and females of the larger (more than 8 mm) South American species is provided. Copyright © 2010 Magnolia Press.


Two new species of Martarega and a new species of Tachygerris are described from the Tumaco municipality, located on Pacific coast, south-west Colombia. Keys to determine the present species of the genera Martarega and Tachygerris from Colombia are given. Copyright © 2010 · Magnolia Press.


Padilla-Gil D.N.,University of Narino
Zootaxa | Year: 2010

The study describes five species of the genus Buenoa, B. tumaquensis, B. anomala, B. dactylis, B. burtsa, and B. prosthetus, from the -Pacific Coast of Colombia. A -key to determine the species of the genus in Colombia is provided. Copyright © 2010 Magnolia Press.


Objective. To determine the psychometric properties and factor structure of the Center for Epidemiological Studies depression scale (CES-D) with a sample of Colombian university students. Methods. A non-probabilistic convenience sample of 355 students from two universities (62% women and 38% men) were selected according to quotas from the educational institutions, a random sample of groups, and volunteer participants. The Spanish version of the CES-D was modified by extending the evaluation period to two weeks. The total score was calculated for each scale and factor; the exploratory factor analysis was conducted using the method of principal components. Results. The four factors: depressive affect, somatic symptoms, positive affect, and interpersonal relations, accounted for 55.9% of the variance. The analysis showed high levels of internal consistency (Cronbach's alpha = 0.88). The individual factors showed variations in internal consistency and converged around a single, secondary factor. The factor structure matched the original theory, even with variations in the factor structure for the whole sample, as well as by gender. Although scores differed according to the sex of the person being evaluated, the internal consistency of the scale as a whole remained over 0.87 for each sex. The proposed cutoff levels for the test were: 39 points for the general population, 35 for males, and 42 for females, all above the fourth quintile. Conclusions. The CES-D scale has satisfactory psychometric properties and can be recommended for use in university students. These results lend themselves to the possibility of using this scale in both clinical and epidemiological studies.

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