999 resultados para Porfirio Díaz


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The Bologna Process aimed to build a European Higher Education Area promoting student's mobility. The adoption of Bologna Declaration directives requires a self management distributed approach to deal with student's mobility, allowing frequent updates in institutions rules or legislation. This paper suggests a computational system architecture, which follows a social network design. A set of structured annotations is proposed in order to organize the user's information. For instance, when the user is a student its annotations are organized into an academic record. The academic record data is used to discover interests, namely mobility interests, among students that belongs the academic network. These ideas have been applied into a demonstrator that includes a mobility simulator to compare and show the student's academic evolution.

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The Bologna Process aimed to build a European Higher Education Area with the objective of promoting students mobility. The adoption of Bologna Declaration directives requires a decentralized approach that accelerates student's mobility, based on frequently updated legislation. This paper proposes a student personal system to manage student's academic information. This system is supported by a flexible model that integrates, for instance, knowledge about the student attended courses or about a course that the student wishes to apply. Essentially, this model holds a (i) Student's Academic Record with skills acquired in academic course units, professional experience or training and an (ii) Individual Studies Plan, which places the student in a particular (iii) Course Plan setting the curricular structure that the student wishes to apply.

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This paper presents the foundations of an Academic Social Network (ASN) focusing the Bologna Declaration and the Bologna Process (BP) mobility issues using ontological support. An ASN will permit students to share commons academic interests, preferences and mobility paths in the European Higher Education Space (EHES). The description of the conceptual support is ontology based allowing knowledge sharing and reuse. An approach is presented by merging Academic Ontology to Support the Bologna Mobility Process with Friend of a Friend ontology. The resulting ontology supports the student mobility profile in the ASN. The strategies to make available, in the network, knowledge about mobility issues, are presented including knowledge discovery and simulation approaches to cover student's mobility scenarios for BP.

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IV Congress of Marine Sciences. Las Palmas de Gran Canaria, June 11th to 13th 2014.

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OBJETIVO: Estimar la prevalencia y los factores asociados al abuso sexual en niñez y adolescencia. MÉTODOS: Estudio realizado en una muestra de estudiantes del estado de Morelos, México, en 2004-2005. Los participantes (n=1730) pertenecen a una cohorte de 13.293 estudiantes de 12 a 24 años. Los datos fueron colectados mediante la aplicación de un cuestionario conteniendo secciones de escalas validadas. Las variables analizadas fueron: factores sociodemográficos (sexo, zona de habitación, nivel socioeconómico); familiares (educación de los padres, adicciones de los padres, violencia entre padres); psicológicos individuales (autoestima - Inventario de Autoestima de Coopersmith, depresión, consumo de alcohol); violencia intrafamiliar (Escala de Strauss); y abuso sexual. Mediante regresión logística múltiple se evaluaron los factores asociados. Se obtuvieron Razones de Momios (RM) con intervalos de confianza al 95%. RESULTADOS: El 4.7% (n=80) de los (as) estudiantes presentaron intento de abuso y el 2.9% (n=50) fueron víctimas de abuso sexual consumado. Las mujeres tuvieron mayor prevalencia de intento (6.1%). El 3.6% de las mujeres y el 1.9% de los hombres fueron abusados sexualmente. Principal agresor en mujeres fue el novio y en hombres una persona desconocida. Edad promedio de 12.02 años en mujeres y 11.71 en hombres. Factores asociados al abuso: mayor consumo de alcohol padres (RM = 3.37; IC 95% 1.40;8.07); violencia hacia madre (RM=4.49; IC 95%1.54;13.10); ser mujer (RM = 2.47; IC 95%1.17;5.24); ser víctima de violencia intrafamiliar alta (RM=3.58; IC 95%1.32;9.67). Autoestima alta fue un factor protector (RM=0.27; IC 95% 0.09;0.75). CONCLUSIONES: En promedio el abuso sexual se presenta a los 12 años de edad en ambos sexos, siendo más frecuente en el sexo femenino. La mayoría de víctimas no lo denuncia.

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OBJETIVO : Estimar la seroprevalencia de rubéola y factores asociados. METODOS : Estudio de seroprevalencia poblacional con una muestra aleatoria de 2.124 individuos de seis a 64 años, representativa por edad, sexo y área en Medellín, Colombia, 2009. Se analizó la asociación de variables biológicas y socioeconómicas con la seroprotección para rubéola, según la cohorte del año de nacimiento antes (1954 a 1990) y después (1991 a 2003) del inicio de la vacunación universal. Se determinaron los títulos de IgG con pruebas de alta sensibilidad (AxSYM ® Rubella IgG – Laboratorio Abbott) y especificidad (VIDAS RUB IgG II ® – Laboratorio BioMerieux). Se estimaron proporciones y promedios ponderados derivados de un muestreo complejo incluyendo un factor de corrección por las diferencias en la participación por sexo. Se analizó la asociación de la protección por grupos de variables biológicas y sociales con un modelo de regresión logística, según la cohorte de nacimiento. RESULTADOS : Los títulos promedio de IgG fueron más altos en los nacidos antes del inicio de la vacunación (media 110 UI/ml; IC95% 100,5;120,2) que en los nacidos después (media 64 UI/ml; IC95% 54,4;72,8), p = 0,000. La proporción de protección fue creciente de 88,9% en los nacidos en 1990-1994, de 89,2% en 1995-1999 y de 92,1% en 2000 a 2003, posiblemente relacionado con la administración del refuerzo desde 1998. En los nacidos antes del inicio de la vacunación, la seroprotección estuvo asociada con el antecedente de contacto con casos (RD 2,6; IC95% 1,1;5,9), el estado de salud (RD 2,5; IC95% 1,05;6,0), el nivel de escolaridad (RD 0,2; IC95% 0,08;0,8) y los años de residencia del hogar en el barrio (RD 0,96; IC95% 0,98;1,0), luego de ajustar por todas las variables. En los nacidos después se asoció con el tiempo de sueño efectivo (RD 1,4; IC95%1,09;1,8) y el estado de salud (RD 5,5; IC95%1,2;23,8). CONCLUSIONES : La vacunación masiva generó un cambio en el perfil de seroprevalencia, siendo mayores los títulos en quienes nacieron antes del inicio de la vacunación. Se recomienda monitorear el sostenimiento del nivel de protección a largo plazo y concertar acciones para el mejoramiento de las condiciones socioeconómicas potencialmente asociadas.

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OBJECTIVE To assess the validity of dengue fever reports and how they relate to the definition of case and severity. METHODS Diagnostic test assessment was conducted using cross-sectional sampling from a universe of 13,873 patients treated during the fifth epidemiological period in health institutions from 11 Colombian departments in 2013. The test under analyses was the reporting to the National Public Health Surveillance System, and the reference standard was the review of histories identified by active institutional search. We reviewed all histories of patients diagnosed with dengue fever, as well as a random sample of patients with febrile syndromes. The specificity and sensitivity of reports were estimated for this purpose, considering the inverse of the probability of being selected for weighting. The concordance between reporting and the findings of the active institutional search was calculated using Kappa statistics. RESULTS We included 4,359 febrile patients, and 31.7% were classified as compatible with dengue fever (17 with severe dengue fever; 461 with dengue fever and warning signs; 904 with dengue fever and no warning signs). The global sensitivity of reports was 13.2% (95%CI 10.9;15.4) and specificity was 98.4% (95%CI 97.9;98.9). Sensitivity varied according to severity: 12.1% (95%CI 9.3;14.8) for patients presenting dengue fever with no warning signs; 14.5% (95%CI 10.6;18.4) for those presenting dengue fever with warning signs, and 40.0% (95%CI 9.6;70.4) for those with severe dengue fever. Concordance between reporting and the findings of the active institutional search resulted in a Kappa of 10.1%. CONCLUSIONS Low concordance was observed between reporting and the review of clinical histories, which was associated with the low reporting of dengue fever compatible cases, especially milder cases.

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Dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Science in Geospatial Technologies

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ABSTRACT OBJECTIVE Analyze the contextual and individual characteristics that explain the differences in the induced abortion rate, temporally and territorially. METHODS We conducted an econometric analysis with panel data of the influence of public investment in health and per capita income on induced abortion as well as a measurement of the effect of social and economic factors related to the labor market and reproduction: female employment, immigration, adolescent fertility and marriage rate. The empirical exercise was conducted with a sample of 22 countries in Europe for the 2001-2009 period. RESULTS The great territorial variability of induced abortion was the result of contextual and individual socioeconomic factors. Higher levels of national income and investments in public health reduce its incidence. The following sociodemographic characteristics were also significant regressors of induced abortion: female employment, civil status, migration, and adolescent fertility. CONCLUSIONS Induced abortion responds to sociodemographic patterns, in which the characteristics of each country are essential. The individual and contextual socioeconomic inequalities impact significantly on its incidence. Further research on the relationship between economic growth, labor market, institutions and social norms is required to better understand its transnational variability and to reduce its incidence.

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Practical sessions are the backbone of qualification in engineering education. It leads to a better understanding and allows mastering scientific concepts and theories. The lack of the availability of practical sessions at many universities and institutions owing to the cost and the unavailability of instructors the most of the time caused a significant decline in experimentation in engineering education over the last decades. Recently, with the progress of computer-based learning, remote laboratories have been proven to be the best alternative to the traditional ones, regarding to its low cost and ubiquity. Some universities have already started to deploy remote labs in their practical sessions. This contribution compiles diverse experiences based on the deployment of the remote laboratory, Virtual Instrument Systems in Reality (VISIR), on the practices of undergraduate engineering grades at various universities within the VISIR community. It aims to show the impact of its usage on engineering education concerning the assessments of students and teachers as well.

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It is of crucial importance the integration of practical sessions in engineering curricula owing to their significant role in understanding engineering concepts and scientific phenomena. However, the lack of practical sessions due to the high costs of the equipment and the unavailability of instructors has caused a significant declination in experimentation in engineering education. Remote laboratories have tackled this issues providing online reusable and shared workbenches unconstrained by neither geographical nor time considerations. Thereby, they have extremely proliferated among universities and integrated into engineering curricula over the last decade. This contribution compiles diverse experiences based on the deployment of the remote laboratory, Virtual Instrument Systems in Reality (VISIR), on the practices of undergraduate engineering grades at various universities within the VISIR community. It aims to show the impact of its usage on engineering education concerning the assessments of students and teachers as well. In addition, the paper address the next challenges and future works carried out at several universities within the VISIR community.

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Thesis submitted for assessment with a view to obtaining the degree of Doctor of Political and Social Science of the European University Institute

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Se describe el aporte de la prueba de doble disfusión arco 5 (DD5) al diagnóstico de la hidatidosis en dos pacientes con operaciones previas. En una de ellas, asintomática, la reacción positiva a los cinco años de su última intervención quirúrgica por hidatidosis, permitió diagnosticar la presencia de quistes cuya localización abdominal fue establecida por la tomografía axial computada (TAC). En el otro caso, sintomático, aunque operado de hidatidosis nueve años antes, la positividad a la DD5 confirmó la etiología de la enfermedad que se había sospechado por centellografía, TAC y su historia clínica. En ambos casos, sin embargo, se hallaron en el acto quirúrgico otros quistes abdominales cuyas imágenes no habían sido reveladas en los estudios a los que se las había sometido.

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Dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Science in Geospatial Technologies

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En este estudio se comprobó que el Instituto Butantan produce antígenos y sueros indicadores que se pueden utilizar con éxito en la prueba de contrainmunoelectroforesis para titular anticuerpos antirrábicos en personas inmunizadas. No se pudieron demostrar diferencias estadísticamente significativas entre los resultados de las pruebas de estandarización realizadas en el Instituto Butantan y las pruebas de control de referencia llevadas a cabo en el Centro Panamericano de Zoonosis. Se propone que el Instituto Butantan produzca y distribuya a nivel nacional los reactivos para que los laboratorios de diagnóstico apliquen la técnica de contrainmunoelectroforesis para la determinación de anticuerpos antirrábicos.