Factores empresariales que explican la permanencia de las Sartups en el mercado: el caso del sector de las tecnologías en la ciudad de Armenia

En Colombia son muchas las personas que deciden emprender y desarrollar iniciativas económicas como un mecanismo para emplearse y alcanzar una estabilidad salarial -- Sin embargo, se presentan dificultades que inciden sobre la permanencia de las empresas en el mercado -- Por tanto, este trabajo de investigación avanza en la exposición de algunos factores empresariales que explican por qué ciertas empresas han permanecido vigentes a partir del análisis econométrico de 225 empresas del sector de tecnologías de la ciudad de Armenia -- Al realizar las pruebas econométricas sobre los residuales de homocedasticidad, multicolinealidad, curtosis, normalidad y de variables omitidas que permiten garantizar una correcta especificación empírica y, por ende, que los coeficientes estimados son insesgados, eficientes y consistentes, se infiere que los activos financieros, el tipo de organización jurídica y el sector económico contribuyen a explicar las diferencias de tiempo que las empresas del sector de tecnologías en la ciudad de Armenia han presentado -- De igual forma, se encontró en la base de datos que 39.7 años es el mayor tiempo en que una empresa de tecnología ha permanecido en el mercado, mientras el menor tiempo fue de tres mesesIn Colombia, there are many people who decide to undertake and develop economic initiatives as a mechanism to be employed and achieve wage stability -- However, there are difficulties that affect the permanence of companies in the market -- Therefore, this research advances in the exposition of some business factors that explain why certain companies have remained in the market from the econometric analysis of 225 companies in the technology sector of the city of Armenia -- When performing the econometric tests on the residuals of homoscedasticity, multicollinearity, kurtosis, normality and of omitted variables that allow guaranteeing a correct empirical specification and, therefore, that the estimated coefficients are unbiased, efficient and consistent, it is inferred that the financial assets, the type of legal organization and the economic sector contribute in explaining the time differences that companies in the technology sector in the city of Armenia have presented -- Similarly, it was found in the database that 39.7 years is the longest time that a technology company has remained in the market while three months is the shortest tim

Mortalidad y morbilidad de la peritonitis secundaria con relaparotomía planeada Mortality and morbidity of secondary peritonitis with planned relaparotomy

Introducción: El tratamiento quirúrgico ideal de la peritonitis secundaria severa complicada (PSSC) aun no es claro. El objetivo es mostrar los resultados clínicos donde la técnica quirúrgica escogida fue relaparotomias planeada en el manejo de PSSC. Material y métodos: Entre 1995-2004, todos los pacientes con diagnóstico de PSSC fueron manejados con la técnica de relaparotomías planeadas, luego de controlado el proceso infeccioso se cerró la pared abdominal. El desenlace principal fue mortalidad hospitalaria. A partir del año 2000, se disminuye la frecuencia de las relaparotomías porque se considera el esquema de hacerla planeada, restringiendo las reintervenciones. Se realizó un análisis multivariado. El IRB institucional aprobó la realización de este estudio. Resultados: Se incluyeron 267 pacientes, edad promedio: 52.2 años, el 62.5% hombres, la estancia promedio en UCI:15.8 días, el promedio de relaparotomias planeadas fue de 4 ± 3 con mediana de 3. La tasa de mortalidad global fue 19.9%, antes del año 2000 fue de 28.4% y después del 2000 de 14.5%. El análisis multivariado mostró que relaparatomías no fue predictor independiente de muerte (OR:1.98 IC95%0.78-3.41,p=0.3), como si lo fueron edad>50 años, choque y APACHE II>25. Las complicaciones más frecuentes fueron: fístulas intestinales (15.3%), shock séptico (54%), y SDRA (30%). Conclusión: La mortalidad global actual en pacientes con peritonitis secundaria severa fue menor del 20%. Los predictores independientes de muerte en este grupo fueron edad>50 años, choque y APACHE II>25.Introduction: The ideal treatment of severe complicated secondary peritonitis (SCSP) remains unclear. The purpose of this paper is the presentation of the clinical results of the surgical policy of planned relaparotomy in the management of SCSP. Material and methods: All patients with SCSP were managed with planned relaparotomy in the period 1995-2004; the abdominal wall was closed once the infectious process had been controlled. The main outcome was hospital mortality. After the year 2000 we registered descent of the rate of relaparotomy because the policy change to planned intervention, which restricted the number of reinterventions. A multivariate analysis was carried out. The hospital committee of bioethics approved the implementation of the study. Results: The study population included 267 patients with average age of 52.2 years; 62.5 were male; mean ICU stay was15.8 days, the rate of planned relaparotomies was 4 ± 3 with a median of 3. The global mortality rate was 19.9%; before the year 2000 the rate was 28.4%, and after the year 2000 the rate came down to 14.5%. The multivariate analysis showed that relaparotomy was not an independent predictor of mortality (OR: 1.98, CI 95% 0.78-3.41, p=0.3). but age >50 years, shock, and APACHE II score >25 were independent predictors. Most common complications were intestinal fistulae (15.3%), septic shock (54%), and ARDS (30%). Conclusion: Global mortality rate in patients with severe secondary peritonitis was less than 20%. The independent predictors of mortality in the study group were age>50 years, shock, and APACHE II score >25

Política monetaria y estabilidad financiera en economías pequeñas y abiertas

“Desde agosto de 2007 los conceptos de riesgo sistémico y de regulación macroprudencial han cobrado un enorme protagonismo. Las investigaciones recientes han identificado la fragilidad de los mercados financieros, el riesgo de un crecimiento tanto del crédito excesivo, como de las burbujas en el precio de los activos, y la importancia del arbitraje regulatorio. Con los nuevos lineamientos definidos en Basilea III, las autoridades monetarias y supervisoras tienen la enorme responsabilidad de decidir si una desaceleración del crédito es necesaria para preservar la estabilidad financiera. Por ello, en la actualidad es imperativo identificar y estimar el impacto de la política monetaria y de la regulación financiera sobre la estabilidad financiera y el ciclo económico. Dicho impacto es específico en cada país, dadas sus propias características. Por esta razón, es importante valorar las particularidades locales del vínculo entre política regulatoria y estabilidad financiera. El presente libro responde a esta necesidad y constituye un verdadero logro, al exponer un análisis riguroso de la sensibilidad de la actividad financiera y económica a los choques exógenos y a la política económica. Sus 19 capítulos permiten obtener una perspectiva completa de los determinantes de la estabilidad financiera en Colombia. Se trata de un análisis riguroso que será de utilidad para calibrar la política macroprudencial. Una gran obra que no podía llegar en momento más oportuno.”Palabras de Xavier Freixas (Profesor de la Universidad Pompeu Fabra

XVII International Congress of Control Electronics and Telecommunications: "Advanced Science, Technology and Innovation to move towards a new socio-technical system: Sustainable Social Transformation"

Contenido: Approach to the diagnostic of cesarean birth using bio-inspired models. ; Design of a tool in a virtual reality environment to manipulate anatomical models. ; The effect of COVID-19 restrictions on the electricity price forecasting models. ; Depression prevention through artificial intelligence. ; State of the art in Prototypes as complements to the learning of the Colombian Sign Language (LSC). ; A computational proposal for gene expression deterministic analysis in associated disorders to depression and anxiety. ; Evaluation of postural stability from the predictability of the measurement of the center of pressure. ; Psychophysiological Analysis of Sound Stimuli.; Delphi method for the identification of relevant variables in the development of low-power photovoltaic solar projects. ; Socioeconomic impact of a refrigerator powered by a photovoltaic system in La Guajira. ; Energy Efficiency: characteristics that allow the reduction of greenhouse gases in. ; Possibilities for the implementation of a bioreactor from organic waste. ; Energy Potential with Small Hydroelectric Power Plants in Non- interconnected Zones of Colombia. ; Energy Potential in Photovoltaic Solar Solutions in Non-Interconnected Areas of Colombia. ; Photovoltaic system, towards the energy transition from home. ; Blockchain model to increase the transparency of public sector processes. ; Intelligent agricultural irrigation prescription system based on sensor networks and crop modeling. ; Design and implementation of a digital modulation classification system using intelligent algorithms. ; A mobile application proposal to minimize intermediation during agricultural process distribution of products in supply chain. ; Accompanying strategy for the social appropriation of new technologies in vulnerable agricultural communities: case in communities producing Gulupas fruits (Passiflora edulis Sims). ; Predictive model of transparency as an indicator of Public Policies. ; Smart system for recognition of ripening level in blackberry fruits. ; Project-based learning as an alternative methodology for technological education in electronics. ; Design and construction of an automated system for N. ; Four bar mechanisms (FBM) and their Software-Based applications: a reviewFT aquaponic culture of Red Carp and Crespa Lettuce. ; Intelligent search implementation for the construction of states of the art: a python application. ; Indoor and Outdoor propagation models on 5G environments: state of the art. ;The electronic detection of offenders (DOO) in the District Secretary of mobility of Bogotá: a step forward in the configuration of the concept of digital citizenship in Colombia. ; Monitoring through ICT of Mobility: technological collaborative feature to incorporate IoT in a Smart City. ; Characterization model of asphalt mixtures using digital image processing. ; Review: identification of diseases and/or pests in fruit trees through image processing techniques and artificial intelligence. ; VRS applicated to Nasa Yuwe language. ; Application of Pix2Pix for edge reconstruction in images. ; Brushless DC Motor Control System for Active Myoelectric Prosthesis. ; Implementation of a Water Conductivity Measuring System. ; 2 DOF robot programmed with MatLab® (guide and Peter Corke) and Arduino uno for writing alphabetical characters. ; Simulator of the behavior of the center of mass in a quadruped robot. ; Biomimetic prototype for flapping movement of batsContent: Contenido: Approach to the diagnostic of cesarean birth using bio-inspired models. ; Design of a tool in a virtual reality environment to manipulate anatomical models. ; The effect of COVID-19 restrictions on the electricity price forecasting models. ; Depression prevention through artificial intelligence. ; State of the art in Prototypes as complements to the learning of the Colombian Sign Language (LSC). ; A computational proposal for gene expression deterministic analysis in associated disorders to depression and anxiety. ; Evaluation of postural stability from the predictability of the measurement of the center of pressure. ; Psychophysiological Analysis of Sound Stimuli.; Delphi method for the identification of relevant variables in the development of low-power photovoltaic solar projects. ; Socioeconomic impact of a refrigerator powered by a photovoltaic system in La Guajira. ; Energy Efficiency: characteristics that allow the reduction of greenhouse gases in. ; Possibilities for the implementation of a bioreactor from organic waste. ; Energy Potential with Small Hydroelectric Power Plants in Non- interconnected Zones of Colombia. ; Energy Potential in Photovoltaic Solar Solutions in Non-Interconnected Areas of Colombia. ; Photovoltaic system, towards the energy transition from home. ; Blockchain model to increase the transparency of public sector processes. ; Intelligent agricultural irrigation prescription system based on sensor networks and crop modeling. ; Design and implementation of a digital modulation classification system using intelligent algorithms. ; A mobile application proposal to minimize intermediation during agricultural process distribution of products in supply chain. ; Accompanying strategy for the social appropriation of new technologies in vulnerable agricultural communities: case in communities producing Gulupas fruits (Passiflora edulis Sims). ; Predictive model of transparency as an indicator of Public Policies. ; Smart system for recognition of ripening level in blackberry fruits. ; Project-based learning as an alternative methodology for technological education in electronics. ; Design and construction of an automated system for N. ; Four bar mechanisms (FBM) and their Software-Based applications: a reviewFT aquaponic culture of Red Carp and Crespa Lettuce. ; Intelligent search implementation for the construction of states of the art: a python application. ; Indoor and Outdoor propagation models on 5G environments: state of the art. ;The electronic detection of offenders (DOO) in the District Secretary of mobility of Bogotá: a step forward in the configuration of the concept of digital citizenship in Colombia. ; Monitoring through ICT of Mobility: technological collaborative feature to incorporate IoT in a Smart City. ; Characterization model of asphalt mixtures using digital image processing. ; Review: identification of diseases and/or pests in fruit trees through image processing techniques and artificial intelligence. ; VRS applicated to Nasa Yuwe language. ; Application of Pix2Pix for edge reconstruction in images. ; Brushless DC Motor Control System for Active Myoelectric Prosthesis. ; Implementation of a Water Conductivity Measuring System. ; 2 DOF robot programmed with MatLab® (guide and Peter Corke) and Arduino uno for writing alphabetical characters. ; Simulator of the behavior of the center of mass in a quadruped robot. ; Biomimetic prototype for flapping movement of bat