University of Pamplona

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.

Revisión de técnicas de sistemas de visión artificial para la inspección de procesos de soldadura tipo gmaw

Abstract: El proceso de soldadura GMAW es ampliamente estudiado debido a su alta productividad y bajo costo. En este trabajo se han revisado las investigaciones orientadas a la inspeccion del proceso de GMAW a traves de sistemas de vision artificial con el objetivo de establecer los principales elementos utilizados en estos sistemas destacando dos categorias: metodos computacionales (software y algoritmos generales), materiales y modelos matematicos (metodos estadisticos y numericos). Estas categorias se traslapan en el estudio y se han utilizado para evaluar el costo en terminos de recursos humanos y recursos economicos. Las investigaciones revisadas se desarrollaron en la ultima decada, con la excepcion de algunas investigaciones que desempenaron un papel principal en el desarrollo de los sistemas de inspeccion de los procesos GMAW. Finalmente, se han destacado los posibles campos de investigacion para aquellos que intentan explorar sistemas de vision artificial para inspeccion de procesos GMAW. Palabras clave: GMAW, soldadura, vision artificial, inspeccion.

The environmental filtering and the conservation of tropical dry forests in mountains in a global change scenario

Abstract: Tropical dry forests (TDFs) are ecosystems that present stresses for woody species, and these stresses are expected to filter out many lineages that do not adapt to these stressful environments. In most cases, in the Andes, only small fragments of these forests remain with different conservation conditions in a gradient of altitude and stresses. This work aimed to answer whether taxonomic and phylogenetic diversities increase or decrease with increasing altitude in the Andes TDFs. The working hypothesis was that the variation in altitude determines the taxonomic and phylogenetic diversity of the Andes TDFs. The study was carried out through a floristic census in seven different locations in an Andean slope with altitudes ranging from 282 up to 799 m ASL. In each location, 20 plots of 25-m × 4-m were established, totaling 140 plots. Taxonomic and phylogenetic diversity indices were estimated. We also used principal component analysis to describe the influence of climatic variables at the seven study sites. We found the influence of environmental filtering in the studied sites. As climatic seasonality increases and altitude decreases, taxonomic and phylogenetic diversity decrease and phylogenetic clustering increases. The major concern in a global warming scenario is that increasing the effects of high temperatures and droughts could extinct species and phylogenetic lineages as TDF fragmentation prevents species from migrating upwards in the mountains. Therefore, to promote connectivity is a priority besides stop habitat loss of TDFs.

Estrategias pedagógicas en el aula de clase

Abstract: Este trabajo tiene como proposito la evaluacion de la adopcion del modelo Constructivista Social, con el fin de validar la hipotesis de que con el avance de los semestres academicos aumenta la incorporacion de estrategias pedagogicas que permiten la mejor adopcion del enfoque Constructivista Social por parte de los docentes de la UFPSO. El estudio se plantea mediante una metodologia descriptiva-evaluativa teniendo en cuenta la poblacion de 362 docentes entre planta y catedraticos, de la cual se toma una muestra de 76 profesores. Se definen como variables el Rendimiento Academico y las Estrategias Pedagogicas, se generan varios inter grupos con cada facultad, se contempla un plan que incluye el analisis comparativo y correlacion de Pearson entre facultades. Palabras clave: Estrategias Pedagogicas, Modelo Pedagogico, Rendimiento Academico

Factores sociodemográficos y seguimiento prenatal asociados a la mortalidad perinatal en gestantes de Colombia

Abstract: Background: an adequate monitoring and the compliance of the nutritional requirements are essential for fetal development and successful control of pregnancy outcomes. This study aimed to determine the association between sociodemographic factors and the pre-birth monitoring associated with perinatal mortality in pregnant women from Colombia. Methods: this was a cross-sectional analysis from the 2010 Colombian Demographic and Health Survey and the National Nutritional Survey that included 14 754 pregnant women between 13 and 44 years old. Sociodemographic factors included: new born sex, geographic region, socioeconomic status (SISBEN), pre-birth monitoring (weight control, uterus height, blood pressure, fetal cardiac activity, biochemistry essays, urine analysis) and the supplementation of iron, calcium and folic acid, were collected by structured questionnaire. Associations were established through multivariable and binary regression models. Results: sociodemographic factors such as living in high-density cities, pacific and western regions and low socioeconomic status (SISBEN I) showed a highest perinatal mortality with rates of 1.7%, 1.5%, 1.4% and 1.4%, respectively. After adjustment by new born sex, geographic region and SISBEN score, an adequate monitoring of weight control (OR = 5.12), blood pressure (OR = 5.18), biochemistry essays (OR = 2.19), supplementation of iron (OR = 2.09), calcium (OR=1.73) and folic acid (OR = 2.73) were associated as facilitators of perinatal mortality.

Aparición paradójica de tuberculomas encefálicos durante el tratamiento de tuberculosis en pacientes inmunocompetentes

Abstract: Two cases of appearance of encephalic tuberculomas during anti-tuberculous treatment in immunocompetent patients are presented. The first an adult man presenting a right frontal lesion which required surgical treatment and the second a girl with multiple lesions located mainly in the brainstem. This paradoxical presentation is attributed to a bizarre immunological reaction between the host and the tuberculosis bacillus. Patients with this condition do not require changes in anti-tuberculous treatment, and steroids are helpful in alleviating the symptoms. Surgery is indicated only for cases of uncontrollable intracranial hypertension or when there is diagnostic uncertainty. The prognosis of this entity is usually good.