31651 research outputs found
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Arquitectura contemporánea en Colombia. Reflexiones proyectuales
No full textEl pensamiento teórico de la arquitectura y ciudad contemporánea en Colombia está por construir. La aproximación epistemológica y proyectual desarrollada en los capítulos marca una diferencia con el modo historiográfico con el que generalmente se producen reflexiones sobre la arquitectura en Colombia, diferencia sobre la cual se sostienen los aportes principales de esta producción.https://ciencia.lasalle.edu.co/edunisalle_arquitectura-urbanismo/1006/thumbnail.jp
Tópicos de Datos y Textos
No full textEl exceso de información que vivimos actualmente nos reta a buscar y establecer nuevas metodologías para extraer información relevante a partir de datos en forma de textos escritos; en este sentido, el uso de distintas tecnologías representa un apoyo fundamental en la transformación de los datos en información, siendo el Machine Learning (ML) un conjunto de técnicas con potencial para lograr dicha transformación. En términos generales, el ML puede clasificarse en varios tipos, el aprendizaje por refuerzo, el supervisado, el no supervisado y recientemente se habla de aprendizaje semisupervisado; en todo este grupo de clasificaciones es posible realizar regresiones, agrupaciones, asociaciones, o clasificaciones, valga la redundancia, entre muchas otras técnicas y usos.https://ciencia.lasalle.edu.co/elearning_esc_negocios/1022/thumbnail.jp
Investigación III
No full textEl espacio de Investigación III tiene como propósito conocer y profundizar los elementos analíticos y técnicos, para ejecutar tres procesos que contribuyen a la publicación de los proyectos de emprendimiento de los estudiantes. La primera unidad está diseñada para comprender y ejecutar un proceso de sistematización que será el punto de partida para analizar las problemáticas asociadas a sus proyectos se enmarca en una metodología de aprendizaje teórico-práctica La segunda unidad didáctica está orientada para el entendimiento de los elementos que componen los procesos de socialización de los proyectos, coadyuvan a la organización apertura y cierre de los proyectos de emprendimiento social o de negocios. se evaluará el proyecto de emprendimiento, avances y resultados. Así mismo, se socializarán los resultados tanto del proyecto como del producto en ambientes empresariales, organizaciones y grupos de interés.https://ciencia.lasalle.edu.co/elearning_esc_negocios/1024/thumbnail.jp
Ambiente y Desarrollo Sostenible
No full textEn este espacio adquirirá bases conceptuales orientadas a comprender los componentes del ambiente, sus principales problemáticas asociadas con actividades antrópicas e hitos importantes para el desarrollo sostenible. Se brindaran momentos de análisis desde diferentes contextos industriales, organizacionales o sociales, lo que le permitirá desarrollar y fortalecer sus conocimientos y competencias para observar, comprender, analizar y proponer alternativas y soluciones de software a diversas problemáticas y necesidades ambientales, fomentando así su sentido crítico, reflexivo y creativo, lo anterior dará lugar al futuro aporte de desarrollo económico, social y ambiental del país como profesional de ingeniería de software.https://ciencia.lasalle.edu.co/elearning_ingenieria/1011/thumbnail.jp
Cálculo Diferencial
No full textEl Cálculo Diferencial, abordará en su primera unidad los fundamentos de las matemáticas básicas necesarios para que el estudiante empalme el bachillerato con la universidad de manera gradual, sin mayores dificultades; en la segunda unidad, se conceptualiza sobre las funciones, los límites y la continuidad fundamentos del Cálculo Diferencial; en la tercera unidad se obtienen las derivadas de las familias de funciones algebraicas y trascendentes; y en la unidad cuatro se aplican las derivadas a situaciones problémicas en geometría, optimización, razones de cambio relacionadas, construcción de gráficas y solución de límites. La ruta de aprendizaje es piramidal, es decir, se parte de las unidades de aprendizaje de menor complejidad hasta llegar a las de mayor como se ilustra la figura 2.https://ciencia.lasalle.edu.co/elearning_ingenieria/1013/thumbnail.jp
The hegemony of big corporations and the internationalization of capital: A stagnation model with restricted democracy
No full textThis chapter presents a multidimensional vision of the effects of multinational corporations in the process of capital accumulation in the Colombian economy. First, the vision of the post-Keynesian firm is developed concerning the behavior of the multinational corporation by introducing the financing of the firm in foreign currency and the corruption expenses as a factor that facilitates the operation of the firm in the host country. Then, Robinson’s theory of growth ages is incorporated in order to approach the historic patterns of capital accumulation and distribution in Colombia in the context of the recent phase of trade and financial globalization. The two approaches verify that Colombia’s rates of growth and accumulation have been affected negatively by the presence of the multinational corporations. Likewise, along with the deterioration of economic conditions multinational corporations have fueled the political conflict
Financial Services Request Evolution
No full textThis text uses the operational data of a financial services company in Colombia with about 10 million clients nationwide and with more than 50 offices in the country. With operational records for the provision of their services for a period of 30 months, which includes periods of 4 different calendar years. Using the ANOVA models and the coefficients of the associated linear regression model, the effect of the year, the week of the year, the day of the month, the day of the week on the arrival rates, waiting time, time in service, rate of outlet for the attention of each of the products. In the same way, the evolution of performance measures since the modification of the system is identified. Using this information, it is possible to propose changes or use data analysis schemes that identify cyclical variation with different time lengths and identify the evolution of changes in the working method within the organization
Leptospirosis a zoonosis that impacts health: Diagnosis, treatment and new alternatives of control
No full textLeptospirosis is a potentially epidemic zoonosis of difficult diagnosis which requires comprehensive management to indicate appropriate prevention and control measures. However, some of the difficulties are the existence of more than 300 serovars, survival of the bacteria in the environment for more than 180 days, and the role of water as a route of transmission. The above situation, alongside the adverse effects of antibiotics and their effect on the multi-drug resistance developed by most bacteria, lead to the search for new alternatives based on biodiversity. The purpose of the study was therefore to address leptospirosis and its diagnosis highlighting conventional control of the infection as well as treatment options based on the use of medicinal plants. To achieve this end, an exhaustive review was conducted of papers included in databases. The information obtained made it possible to determine the relevant aspects of the disease, its diagnosis and its treatment with conventional antimicrobials as well as new alternatives of a natural origin. Conclusions point to the importance of conducting research aimed at the search for active principles potentially contributing to control of Leptospira spp., the causative agent of leptospirosis, one of the most relevant zoonoses in terms of its impact on the health of humans, animals and the ecosystem
Mathematical modeling of ventilation in classrooms as decrease in the risk of contagion by COVID-19
No full textIn indoor spaces, there is evidence of the importance of transmission of the SARS-CoV-2 virus by air through aerosols, especially in poorly ventilated conditions. Viruses are exhaled by infected people into respiratory particles with sizes less than 50 microns (microdroplets) that are suspended in the air (aerosols) and can be transported to distances greater than 2 meters within a closed room, such as classrooms. Therefore, in closed school environments, the conditions of occupation and ventilation are essential to determine and minimize the risk of transmission of the virus. There are various techniques to physically assess the air change rate (ACH) in an indoor space or to estimate it indirectly by measuring carbon dioxide (CO2). However, these procedures could be complex for an untrained community or in the absence of a CO2 monitor. The application of mathematical models allows alternatively to evaluate the ventilation conditions from the estimation of ACH or the concentration of CO2 in an intramural space. Some mathematical models were included as part of a guide developed for the evaluation and monitoring of ventilation in school settings. In this work, the application of mass balance models is presented, under conditions of complete mixing, in a classroom in order to estimate ACH from the volume and occupation of the room. Likewise, mathematical expressions are developed to estimate the concentration of CO2 and evaluate the risk of contagion to COVID-19 in situations with and without ventilation. From simple mathematical expressions, it is contributed to the evaluation of the ventilation conditions of classrooms to avoid possible outbreaks of contagion in face-to-face education
Morbidity ratio associated with Acute Respiratory Infections (ARI) and intramural microbiological quality in a home located in Tausa
No full textThis study was carried out in order to determine the presence of potentially pathogenic microorganisms in the air of a home located in the municipality of Tausa and its possible relationship with ARIs (Acute Respiratory Infections), for which a microbiological analysis was carried out in order to identify bacteria that are possibly causing respiratory illnesses in the household. The sampling consisted of the use of a suction equipment (MAS100 Eco), during different time bands and spaces inside and outside the house. Later the respective analysis was carried out in the laboratory and 6 different mesophilic microorganisms were identified, which were: Salmonella tiphy, Bacillus subtilis, Acinetobacter baumannii, Escherichia coli, Staphylococcus aureus, and Kingella kingae. In addition, each of these bacteria were individually analyzed to understand the dynamics of the pollutant load in the home. Finally, the identified mesophilic microorganisms correspond to bacteria with some degree of pathogenicity and/or health effects, in the same way the morbidity data from the Tausa medical center were analyzed. Here we found that the population under 13 years old is the most affected by ARI, and that the bacteria present more easily affect this type of population, generating a wider perspective on the possibilities of having more patients diagnosed with ARI, as found in the home. The data presented here were affected and biased due to the health emergency caused by COVID19