Influencia de las NN.TT. en el docente universitario de Topografía. Estudio de casos

Ressenya de la tesi presentada en data 30 de gener de 2012 dins el programa : Investigación en la Enseñanza y el Aprendizaje de las Ciencias Experimentales, Sociales y Matemáticas

Safety of permanent pacemaker implantation: a prospective study

Although pacemaker implantation is considered to be low risk, it is not exempt from complications and technical failures during the procedure, both in the short and long term, and the complications that such patients may present remain unknown. The aim has been to analyze the complication rates associated with permanent pacing and to identify if these differ between patients with or without previous antithrombotic therapy. We used a prospective, single center, observational study of 310 adult patients with indications of permanent pacing. They were hospitalized from 1 January to 31 December 2014 and followed up for 6 months after the pacemaker implant. The participants were distributed into two groups according to the antithrombotic therapy prior to the implant. The most frequent major complications were pneumothorax (3.87%) and lead dislodgement (8.39%), while superficial phlebitis (12.90%) and uncomplicated hematomas (22.58%) were presented as the most recurrent minor complications. Hematomas were the most frequent minor complication in the antithrombotic therapy cohort, and shoulder pain was reported as the most recurrent minor complication in the non-exposed group. Finding out about complications in pacemaker implants enables a complete view of the process, and hence the prioritization of actions aimed at improving safety and reducing associated risks

Colestasis intrahepática gestacional como factor de riesgo para preeclampsia en gestantes del hospital II 2 Tarapoto

La restricción del crecimiento intrauterino representa una importante morbimortalidad perinatal y cuya detección es variable según modelos clínicos y características propias en cada población. OBJETIVO: Evaluar si el Doppler de arterias uterinas y la edad materna conforman un modelo clínico con capacidad predictiva de restricción del crecimiento intrauterino en una amplia muestra de población peruana. MATERIALES Y MÉTODOS: Estudio observacional, analítico, de prueba diagnóstica. Participaron 1344 gestantes atendidas en un centro de referencia nacional materno perinatal Nivel III en Perú entre 2010-2018. La muestra fue seleccionada aleatoriamente y dividida en: muestra de entrenamiento y muestra para validación del mejor modelo clínico obtenido. Se usó análisis multivariado, medición de la capacidad diagnóstica y predictiva. RESULTADOS: El modelo clínico formado por el índice de pulsatilidad promedio mayor al percentil 95 de la arteria uterina y la edad materna mayor a 35 años conformo el modelo con el menor indicador de penalidad de Akaike en comparación con los otros modelos clínicos elaborados en el presente estudio, el índice de Youden fue 0.53. El área bajo la curva ROC fue de 0.75. Se obtuvo una sensibilidad de 71.5%, especificidad 72.1%, valor predictivo positivo 65.8%, valor predictivo negativo 91.2%. CONCLUSIONES: El uso del índice de pulsatilidad promedio de la arteria uterina asociado a la edad materna contribuyen a la formación de un modelo para discriminar RCIU; sin embargo, requiere de otros factores que permitan ajustar el modelo para una mayor tasa de detección.Tesis de segunda especialida

DC-Voltage-Ratio Control Strategy for Multilevel Cascaded Converters Fed With a Single DC Source

Recently, a multilevel cascaded converter fed with a single DC source has been presented. An analysis of the steady-state working limits of this type of converter is presented in this paper. Limits of the maximum output voltage and the minimum and maximum loading conditions for stable operation of the converter are addressed. In this paper, a way to achieve any DC voltage ratio (inside the stable operation area of the converter) between the H-bridges of the single-DC-source cascaded H-bridge converter is presented. The proposed DC-voltage-ratio control is based on a time-domain modulation strategy that avoids the use of inappropriate states to achieve the DC-voltage-ratio control. The proposed technique is a feedforward-modulation technique which takes into account the actual DC voltage of each H-bridge of the converter, leading to output waveforms with low distortion. In this way, the dc voltage of the floating H-bridge can be controlled while the output voltage has low distortion independently of the desired DC voltage ratio. Experimental results from a two-cell cascaded converter are presented in order to validate the proposed DC-voltage-ratio control strategy and the introduced concepts.Ministerio de Ciencia y Tecnología TEC2006-03863Junta de Andalucía EXC/2005/TIC-117

The balance store card for the design and validation instruments to measure the academic teacher's achievement and performance

The evaluation of faculty work is critical for the university accreditation. Moreover, particularly sensitive to this related tendency of faculty work evaluation; it is necessary to go beyond the knowledge factor and concentrating more in the degree of satisfaction of the stakeholders included in the process of university education. In this context, this research aims to design and validate the instruments directed to explore the internal academic environment of the faculty at the Centro Regional de Veraguas, Universidad Tecnologica de Panama; considered as dimensional axes to the organization, development, and the psycho-pedagogic properties of academic work. For the present research, the BSC methodology was used in different stages of strategic planning and program evaluation. The Delphi technique was used to validate the content and the construction of the instruments. The validation of the reliability value was established by the Cronbach's alpha value by using the SPSS for analysing the data.The evaluation of faculty work is critical for the university accreditation. Moreover, particularly sensitive to this related tendency of faculty work evaluation; it is necessary to go beyond the knowledge factor and concentrating more in the degree of satisfaction of the stakeholders included in the process of university education. In this context, this research aims to design and validate the instruments directed to explore the internal academic environment of the faculty at the Centro Regional de Veraguas, Universidad Tecnologica de Panama; considered as dimensional axes to the organization, development, and the psycho-pedagogic properties of academic work. For the present research, the BSC methodology was used in different stages of strategic planning and program evaluation. The Delphi technique was used to validate the content and the construction of the instruments. The validation of the reliability value was established by the Cronbach's alpha value by using the SPSS for analysing the data

Cuadro de mando integral para el diseño y validación de instrumentos para valorar el desempeño académico de docentes

La valoración de la labor docente es un pilar de la acreditación universitaria. En un momento, particularmente sensible relacionado a esta tendencia global y a la imagen que emerge de las diferentes unidades académicas y adminsitrativas, se torna importante, no solamente, recolocar el asunto de conocer si éstas ponen en práctica aquello que realmente enseñan, sino también conocer el grado de satisfacción de los” stakeholders” sobre los procesos de enseñanza-aprendizaje a nivel universitario. En este contexto, esta investigación tiene como objetivo diseñar y validar instrumentos dirigidos a explorar el entorno de la labor académica del docente universitario del Centro Regional de Veraguas de la Universidad Tecnológica de Panamá, considerando como ejes dimensionales la planificación, el desarrollo y las actividades psicopedagógicas propias de la labor académica. Para la realización de la investigación se utilizó la metodología del Cuadro de Mando Integral en las etapas de planificación estratégica del programa de evaluación académico y se utilizó la técnica Delphi para la validación de contenido y de constructo de los instrumentos. En la validación de la confiabilidad se determinó el valor Alpha de Cronbach utilizándose el programa para la PC de SPSS® para la toma de decisionesLa valoración de la labor docente es un pilar de la acreditación universitaria. En un momento, particularmente sensible relacionado a esta tendencia global y a la imagen que emerge de las diferentes unidades académicas y adminsitrativas, se torna importante, no solamente, recolocar el asunto de conocer si éstas ponen en práctica aquello que realmente enseñan, sino también conocer el grado de satisfacción de los” stakeholders” sobre los procesos de enseñanza-aprendizaje a nivel universitario. En este contexto, esta investigación tiene como objetivo diseñar y validar instrumentos dirigidos a explorar el entorno de la labor académica del docente universitario del Centro Regional de Veraguas de la Universidad Tecnológica de Panamá, considerando como ejes dimensionales la planificación, el desarrollo y las actividades psicopedagógicas propias de la labor académica. Para la realización de la investigación se utilizó la metodología del Cuadro de Mando Integral en las etapas de planificación estratégica del programa de evaluación académico y se utilizó la técnica Delphi para la validación de contenido y de constructo de los instrumentos. En la validación de la confiabilidad se determinó el valor Alpha de Cronbach utilizándose el programa para la PC de SPSS® para la toma de decisione

The Balance Score Card for the Design and Validation Instrumens to Measure the Academic Teachers´s Achievement and Performance

The evaluation of faculty work is critical for the university accreditation. Moreover, particularly sensitive to this related tendency of faculty work evaluation; it is necessary to go beyond the knowledge factor and concentrating more in the degree of satisfaction of the stakeholders included in the process of university education. In this context, this research aims to design and validate the instruments directed to explore the internal academic environment of the faculty at the Centro Regional de Veraguas, Universidad Tecnologica de Panama; considered as dimensional axes to the organization, development, and the psycho-pedagogic properties of academic work. For the present research, the BSC methodology was used in different stages of strategic planning and program evaluation. The Delphi technique was used to validate the content and the construction of the instruments. The validation of the reliability value was established by the Cronbach's alpha value by using the SPSS for analysing the data.The evaluation of faculty work is critical for the university accreditation. Moreover, particularly sensitive to this related tendency of faculty work evaluation; it is necessary to go beyond the knowledge factor and concentrating more in the degree of satisfaction of the stakeholders included in the process of university education. In this context, this research aims to design and validate the instruments directed to explore the internal academic environment of the faculty at the Centro Regional de Veraguas, Universidad Tecnologica de Panama; considered as dimensional axes to the organization, development, and the psycho-pedagogic properties of academic work. For the present research, the BSC methodology was used in different stages of strategic planning and program evaluation. The Delphi technique was used to validate the content and the construction of the instruments. The validation of the reliability value was established by the Cronbach's alpha value by using the SPSS for analysing the data

Differentiation Between Ripening Stages of Iberian Dry-Cured Ham According to the Free Amino Acids Content

In this paper, the differentiation of three ripening stages, postsalting, drying, and cellar, of Iberian dry-cured ham has been carried out according to their free amino acids contents. Eighteen L-amino acids, alanine, 2-aminobutanoic acid, aspartic acid, cysteine, glutamine, glycine, histidine, hydroxyproline, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tyrosine, and valine have been determined by gas chromatography with derivatization with N,O-bis(trimethylsilyl)-trifluoroacetamide. Gas chromatography-mass spectrometry was used to confirm the presence of the eighteen amino acids in the ham samples, and gas chromatography using a DB-17HT column and flame ionization detector was used for quantitative determination. Extraction with a mixture methanol-acetonitrile has been carried out, achieving recoveries in the range 52-164%. Methimazole was used as internal standard. Limits of detection ranged between 7.0 and 611.7 mg·kg-1. Free amino acids have been used as chemical descriptors to differentiate between the ripening stages. Principal component analysis and linear discriminant analysis have been used as chemometric techniques, achieving complete differentiation between the ripening stages. Alanine, tyrosine, glutamine, proline, 2-aminobutanoic acid, cysteine, and valine were the most differentiating amino acids.Junta de Andalucía the project P09-AGR-0478

Training in social abilities: A learning and teaching method to develop interpersonal communication abilities in the infirmary area

Constituye el presente estudio una experiencia sobre la validez del entrenamiento en habilidades sociales en el área de la atención a pacientes en el campo de la enfermería. El estudio se ha realizado con un procedimiento experimental en el que se han utilizado dos grupos de alumnos de enfermería, uno de ellos figuraba como grupo control. Ambos grupos tenían el mismo nivel de comunicación interpersonal. Al grupo experimental se le sometió a un proceso de entrenamiento en habilidades sociales con el fin de mejorar su capacidad comunicativa. Después de varios meses se volvieron a someter a la misma prueba de habilidades sociales (Escala Multidimensional de Expresión Social) confirmándose la influencia del entrenamiento recibido por parte del grupo experimental, en el sentido de obtener éste una diferencia significativa respecto del grupo control.The present study is an experience about the validity of the training in social abilities in the area of attention to patient in the field of infirmary. The study has been carried out with an experimental procedure in which has been used two groups of nursing students, one of them figured as control group. Both groups had the same level of interpersonal communication. Experimental group was subjected to a process of training in social abilities with the purpose of improving their talkative capacity. After several months they underwent the same test of social abilities again and influence of the training received on the part of the experimental group was confirmed, in the sense of obtaining this a significant difference regarding the group control

Los Entornos Personales de Aprendizaje como estrategia de aprendizaje desde la Teoría del Actor-Red

Este trabajo pretende visualizar los Entornos Personales de Aprendizaje desde el punto de vista de la Teoría del Actor-Red. En primer lugar, se describen los elementos centrales de la Teoría del Actor-Red, la visión de aprendizaje desde este enfoque, así como el concepto de actante y de simetría generalizada. Posteriormente se exponen los elementos clave de las definiciones sobre Entornos Personales de Aprendizaje y la visión del aprendizaje que defienden, centrada principalmente en el estudiante. Posteriormente, se integran ambas propuestas planteando la relación de Actor-Red-PLE, en la cual el aprendizaje se manifiesta en la asociación heterogénea que se establece entre el discente, la red de contactos, experiencias significativas, significados compartidos, dispositivos que facilitan el aprendizaje ubicuo y cualquier elemento que tengaparticipación activa en su proceso de aprendizaje. Estas asociaciones se establecen en un contexto determinado, que hemos delimitado como zona próxima de aprendizaje, institución y la sociedad en la que se encuentra.This work aims to show the Personal Learning Environments from the point of view of the Actor-Network Theory. In the first instance the central elements of the actor-network theory such as learning vision proposes that this approach, network-centric, and the concept of actant and generalized symmetry is mentioned. Later, important elements of the definitions of Personal Learning Environments are mentioned, related with the learning vision, student-centered. Under this initial prism, both proposals are integrated proposing an Actor-Network-PLE concept in which learning occurs in the heterogeneous partnership established between the learner, the network, significant experiences, shared meanings, devices facilitating ubiquitous learning and anything that has active participation in the learning process while being part of a context that includes the institution, the zone of proximal learning and society. Including in the same level, psychological, materials, computer and social elements