23 resultados para INFORMACIÓN FINANCIERA - ON-LINE - BRASIL

em Universidad Politécnica de Madrid


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Desde la explosin de crecimiento de internet que comenz en los aos 90, se han ido creando y poniendo a disposicin de los usuarios diversas herramientas para compartir informacin y servicios de diversas formas, desde el nacimiento del primer navegador hasta nuestros das, donde hay infinidad de lenguajes aplicables al mbito web. En esta fase de crecimiento, en primer lugar, de cara a usuarios individuales, saldran herramientas que permitiran a cada cual hacer su web personal, con sus contenidos expuestos. Ms adelante se fue generando el fenmeno comunidad, con, por ejemplo, foros, o webs en las que haba mltiples usuarios que disfrutaban de contenidos o servicios que la web ofreciese. Este crecimiento del mundo web en lo comunitario ha avanzado en muchas ramas,entre ellas, por supuesto, la educacional, surgiendo plataformas como la que es base del proyecto que a continuacin se presenta, y herramienta bsica y prcticamente ya imprescindible en la enseanza universitaria: Moodle. Moodle es una herramienta diseada para compatir recursos y disear actividades para el usuario potencial, complementando su aprendizaje en aula, o incluso siendo una va autnoma de aprendizaje en s misma. Se ha realizado un estudio sobre el estado de saludo de los contenidos que se exponen en Moodle, y se ha encontrado que una gran mayora de los cursos que se pueden visitar tienen un gran nmero de carencias. Por un lado, hay pocos con material original explotado exclusivamente para el curso, y, si tienen material original, no se ha observado una especial atencin por la maquetacin. Por otro lado, hay muchos otros sin material original, y, en ambos casos, no se ha encontrado ningn curso que ofrezca material audiovisual exclusivo para el curso, presentando algunos en su lugar material audiovisual encontrado en la red (Youtube, etc). A la vista de estos hechos, se ha realizado un proyecto que intenta aportar soluciones ante estas carencias, y se presenta un curso procedente de diversas referencias bibliogrficas, para la parte textual, y material audiovisual original e indito que tambin se ha explotado especficamente para este curso. Este material ha sido por un lado vdeo, que se ha visionado, editado y subtitulado con software de libre distribucin, y por otro lado, audio, que complementa un completo glosario que se ha aadido como extra al curso y cuyo planteamiento no se ha encontrado en ningn curso online de los revisados. Todo esto se ha envuelto en una maquetacin cuidada que ha sido fruto del estudio de los lenguajes web html y CSS, de forma que, por un lado, el curso sea un lugar agradable en el que aprender dentro de internet, y por otro, se pudiesen realizar ciertas operaciones que sin estos conocimientos habran sido imposibles, como la realizacin del glosario o la incrustacin de imgenes y vdeos. A su vez, se ha tratado de dar un enfoque didctico a toda la memoria del proyecto, de forma que pueda ser de utilidad a un usuario futuro que quisiese profundizar en los usos de Moodle, introducirse en el lenguaje web, o introducirse en el mundo de la edicin de vdeo. ABSTRACT: Since the explosion of Internet growth beginning in the 90s, many tools have been created and made available for users to share information and services in various ways, from the birth of the first browser until today, where there are plenty of web programming languages. This growth stage would give individual users tools that would allow everyone to make an own personal website, with their contents exposed. Later, the "community" phenomenon appeared with, for example, forums, or websites where multiple users enjoyed the content or web services that those websites offered. Also, this growth in the web community world has progressed in many fields, including education, with the emerge of platforms such as the one that this project uses as its basis, and which is the basic and imperative tool in college education: Moodle. Moodle is a tool designed to share resources and design activities for the potential user, completing class learning, or even letting this user learn in an autonomous way. In this project a study on the current situation of the content present in Moodle courses around the net has been carried out, and it has been found that most of them lack of original material exploited exclusively for the courses, and if they have original material, there has been not observed concern on the layout where that material lies. On the other hand, there are many other with non original material, and in both cases, there has not been found any course that offers audio- visual material made specifically for the course, instead of presenting some audiovisual material found on the net (Youtube, etc). In view of these facts, the project presented here seeks to provide solutions to these shortcomings, presenting a course with original material exploited from various references, and unpublished audioevisual material which also has been exploited specifically for this course. This material is, on one hand, video, which has been viewed, edited and subtitled with free software, and on the other, audio, which complements a comprehensive glossary that has been added as an extra feature to the course and whose approach was not found in any of the online courses reviewed. All of this has been packaged in a neat layout that has been the result of the study of web languages HTML and CSS, so that first, the course was a pleasant place to learn on the internet, and second, certain operations could be performed which without this knowledge would have been impossible, as the glossary design or embedding images and videos. Furthermore, a didactic approach has been adopted to the entire project memory, so it can be useful to a future user who wanted to go deeper on the uses of Moodle, containing an intro into the web language, or in the world video editing.

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La diversidad de centros de enseanzas previas a la universidad y el margen de desarrollo y contenido de las mismas que contempla su regulacin, hace que la preparacin de los estudiantes tenga distintos niveles en sus contenidos. El espacio Web "Punto de Inicio" es un espacio orientado a proporcionar a los estudiantes de la Universidad Politcnica de Madrid (UPM) un apoyo para superar sus carencias en las asignaturas de: Matemticas, Fsica, Dibujo y Qumica. Cada materia est organizada en un Aula soportada en la Plataforma Moodle. Cada una de las cuatro Aulas tiene su singularidad pero, con criterio general, todas tienen la siguiente estructura: 1) Contenidos de autoestudio organizados en las cinco o seis reas temticas ms relevantes de cada materia. 2) Tests de autoevaluacin asociados a cada rea temtica y con realimentacin a las respuestas. 3) Material complementario: Prcticas, ejercicios no formales, enlaces web,... 4) Prueba diagnstico de conocimientos. Los autores de los materiales son profesores de la UPM, pertenecientes a los Departamentos relacionados con la docencia de estas materias y los contenidos han sido desarrollados por equipos interdisciplinares de profesores de la UPM, especialistas en dichas materias, en colaboracin con profesores de enseanzas previas a la universidad. Una de las principales preocupaciones ha sido el asegurar que los niveles expuestos en las cuatro Aulas mencionadas se correspondieran con los definidos oficialmente para las materias previas a la Universidad, evitando incorporar nuevos contenidos y garantizando que, efectivamente, se atienden las posibles deficiencias de conocimientos en las asignaturas bsicas requeridos para la integracin, con xito, en la misma. La primera versin de Punto de Inicio se public en el curso 2005-2006 y desde entonces ha venido mejorndose ao a ao hasta la versin actual que se public en Julio del 2012. Una expresin del inters de esta plataforma es su utilizacin por los alumnos, habiendo tenido, en los siete aos de su existencia, un nmero medio de accesos por curso acadmico de 26.100, un nmero medio de registros por curso acadmico de 124.000 y un nmero medio de cuestionarios de autoevaluacin realizados por curso acadmico de 4.250. Punto de Inicio es un espacio Web de acceso limitado a los miembros de la UPM. Hay una versin en abierto para el exterior, de contenido y estructura similar, cuya referencia es: http://ocw.upm.es/apoyo-para-la-preparacion-de-los-estudios-de-ingenieria-y-arquitectura

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Basndonos en la recopilacin inicial de preposiciones, locuciones preposicionales, trminos con preposicin dependiente y phrasal verbs utilizados en el texto tcnico realizada en otros proyectos anteriores del Departamento de Lingstica Aplicada a la Ciencia y a la Tecnologa, el objetivo de este trabajo es completar, organizar, actualizar y dar visibilidad a esta informacin inicial. Tras realizar un proceso exhaustivo de verificacin, unificacin, clasificacin y ampliacin de la informacin existente, en caso necesario, el listado resultante se utiliza para elaborar un glosario de trminos con preposicin. El objetivo final de este proyecto es que este glosario est a disposicin de los usuarios, a travs de una consulta on-line, en la pgina del ILLLab (http://illlab.euitt.upm.es/wordpress/), dependiente del Departamento de Lingstica Aplicada a la Ciencia y a la Tecnologa. Para incluir en el glosario ejemplos actualizados de textos tcnicos, se ha recopilado un corpus lingstico de textos tcnicos, tomando como base diferentes nmeros de la revista IEEE Spectrum, en su edicin digital, publicados entre los aos 2009 y 2012. El objetivo de esta recopilacin es la de ofrecer al consultante diferentes ejemplos de uso en el texto tcnico de los distintos trminos con preposicin que componen el glosario, de manera que pueda acceder de manera rpida y sencilla a ejemplos de uso real de los trminos que est buscando, con objeto de clarificar aspectos relacionados con su uso o, en su caso, facilitar su aprendizaje. Toda esta informacin, tanto el listado de trminos con preposicin como las frases pertenecientes al corpus recopilado, se incorpora a una base de datos, alojada dentro de la misma pgina web del ILLLab. A travs de un formulario de consulta, a disposicin del usuario en dicha pgina, se pueden obtener todos los trminos recopilados que coincidan con los criterios de bsqueda introducidos. El usuario puede realizar dos tipos de bsqueda principales: por preposicin o por trmino completo. Adems, puede elegir una bsqueda global (entre todos los trminos que integran el glosario) o parcial (en una sola de las categoras en las que se han dividido los diferentes trminos, de acuerdo con su funcin gramatical). Por ltimo, se presentan unas estadsticas de uso de los trminos recopilados dentro de los diferentes textos que integran el corpus lingstico, de manera que pueda establecerse una relacin de los que aparecen con ms frecuencia en el texto tcnico. ABSTRACT. Based on the initial collection of prepositions, prepositional phrases, dependent prepositions and phrasal verbs used in technical texts collected on previous projects in the Department of Applied Linguistics to Science and Technology, the aim of this project is to improve, organize, update and provide visibility to this initial information. Following a process of verification, unification, classification and extension of existing information, if necessary, a glossary of terms with preposition is built. The ultimate objective of this project is to make this glossary available to users through an online consultation in the ILLLab webpage (http://illlab.euitt.upm.es/wordpress/). The administration of tis webpage depends of the Department of Applied Linguistics in Science and Technology. A linguistic corpus of technical texts has been compiled, based on different numbers of the IEEE Spectrum magazine, in its online edition, published between the years 2009 and 2012. The aim of this collection is to provide different examples of use in the technical text for the terms included in the glossary, so that examples of the actual use of the terms consulted can be easily and quickly accessed, in order to clarify doubts regarding their meaning or translation into Spanish and facilitate learning. All this information, both the list of terms with prepositional phrases as well as the corpus developed, is incorporated in a database. Through a searching form, the ILLLab's user may obtain all the terms matching the search criteria entered. The user can perform two types of main search: by preposition or by full term. Additionally, a global search can be selected (including all terms included in the glossary) or a partial one (including only one of the glossary's categories). Finally, some statistics of use are presented according to the various texts included in the corpus, so a relation of the most frequent prepositions in the technical text can be established.

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The European Higher Education Area (EHEA) has leaded to a change in the way the subjects are taught. One of the more important aspects of the EHEA is to support the autonomous study of the students. Taking into account this new approach, the virtual laboratory of the subject Mechanisms of the Aeronautical studies at the Technical University of Madrid is being migrated to an on-line scheme. This virtual laboratory consist on two practices: the design of cam-follower mechanisms and the design of trains of gears. Both practices are software applications that, in the current situation, need to be installed on each computer and the students carry out the practice at the computer classroom of the school under the supervision of a teacher. During this year the design of cam-follower mechanisms practice has been moved to a web application using Java and the Google Development Toolkit. In this practice the students has to design and study the running of a cam to perform a specific displacement diagram with a selected follower taking into account that the mechanism must be able to work properly at high speed regime. The practice has maintained its objectives in the new platform but to take advantage of the new methodology and try to avoid the inconveniences that the previous version had shown. Once the new practice has been ready, a pilot study has been carried out to compare both approaches: on-line and in-lab. This paper shows the adaptation of the cam and follower practice to an on-line methodology. Both practices are described and the changes that has been done to the initial one are shown. They are compared and the weak and strong points of each one are analyzed. Finally we explain the pilot study carried out, the students impression and the results obtained.

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In this paper we present a scalable software architecture for on-line multi-camera video processing, that guarantees a good trade o between computational power, scalability and exibility. The software system is modular and its main blocks are the Processing Units (PUs), and the Central Unit. The Central Unit works as a supervisor of the running PUs and each PU manages the acquisition phase and the processing phase. Furthermore, an approach to easily parallelize the desired processing application has been presented. In this paper, as case study, we apply the proposed software architecture to a multi-camera system in order to eciently manage multiple 2D object detection modules in a real-time scenario. System performance has been evaluated under dierent load conditions such as number of cameras and image sizes. The results show that the software architecture scales well with the number of camera and can easily works with dierent image formats respecting the real time constraints. Moreover, the parallelization approach can be used in order to speed up the processing tasks with a low level of overhead

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The European Higher Education Area (EHEA) has leaded to a change in the way the subjects are taught. One of the more important aspects of the EHEA is to support the autonomous study of the students. Taking into account this new approach, the virtual laboratory of the subject Mechanisms of the Aeronautical studies at the Technical University of Madrid is being migrated to an on-line scheme. This virtual laboratory consist on two practices: the design of cam-follower mechanisms and the design of trains of gears. Both practices are software applications that, in the current situation, need to be installed on each computer and the students carry out the practice at the computer classroom of the school under the supervision of a teacher. During this year the design of cam-follower mechanisms practice has been moved to a web application using Java and the Google Development Toolkit. In this practice the students has to design and study the running of a cam to perform a specific displacement diagram with a selected follower taking into account that the mechanism must be able to work properly at high speed regime. The practice has maintained its objectives in the new platform but to take advantage of the new methodology and try to avoid the inconveniences that the previous version had shown. Once the new practice has been ready, a pilot study has been carried out to compare both approaches: on-line and in-lab. This paper shows the adaptation of the cam and follower practice to an on-line methodology. Both practices are described and the changes that has been done to the initial one are shown. They are compared and the weak and strong points of each one are analyzed. Finally we explain the pilot study carried out, the students impression and the results obtained.

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En la Escuela de Minas de la Universidad Politcnica de Madrid (UPM) se ha llevado a cabo el proceso de adaptacin a los principios de Bolonia. Esto ha implicado cambios en la metodologa de la enseanza. En este artculo se describe una nueva metodologa aplicada a un curso introductorio de Mecnica ubicado en el primer semestre del grado de dos diferentes ttulos de ingeniera. Los diferentes resultados se presentan mediante un ndice que permite evaluar el resultado global del proceso de enseanza-aprendizaje alcanzado con esta metodologa.

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En la Escuela de Minas de la Universidad Politcnica de Madrid (UPM) se ha llevado a cabo el proceso de adaptacin a los principios de Bolonia. Esto ha implicado cambios en la metodologa de la enseanza. En este artculo se describe una nueva metodologa aplicada a un curso introductorio de Mecnica ubicado en el primer semestre del grado de dos diferentes ttulos de ingeniera. Los diferentes resultados se presentan mediante un ndice que permite evaluar el resultado global del proceso de enseanza-aprendizaje alcanzado con esta metodologa.

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This work evaluates a spline-based smoothing method applied to the output of a glucose predictor. Methods:Our on-line prediction algorithm is based on a neural network model (NNM). We trained/validated the NNM with a prediction horizon of 30 minutes using 39/54 profiles of patients monitored with the Guardian Real-Time continuous glucose monitoring system The NNM output is smoothed by fitting a causal cubic spline. The assessment parameters are the error (RMSE), mean delay (MD) and the high-frequency noise (HFCrms). The HFCrms is the root-mean-square values of the high-frequency components isolated with a zero-delay non-causal filter. HFCrms is 2.901.37 (mg/dl) for the original profiles.

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Background: Analysis of exhaled volatile organic compounds (VOCs) in breath is an emerging approach for cancer diagnosis, but little is known about its potential use as a biomarker for colorectal cancer (CRC). We investigated whether a combination of VOCs could distinct CRC patients from healthy volunteers. Methods: In a pilot study, we prospectively analyzed breath exhalations of 38 CRC patient and 43 healthy controls all scheduled for colonoscopy, older than 50 in the average-risk category. The samples were ionized and analyzed using a Secondary ElectroSpray Ionization (SESI) coupled with a Time-of-Flight Mass Spectrometer (SESI-MS). After a minimum of 2 hours fasting, volunteers deeply exhaled into the system. Each test requires three soft exhalations and takes less than ten minutes. No breath condensate or collection are required and VOCs masses are detected in real time, also allowing for a spirometric profile to be analyzed along with the VOCs. A new sampling system precludes ambient air from entering the system, so background contamination is reduced by an overall factor of ten. Potential confounding variables from the patient or the environment that could interfere with results were analyzed. Results: 255 VOCs, with masses ranging from 30 to 431 Dalton have been identified in the exhaled breath. Using a classification technique based on the ROC curve for each VOC, a set of 9 biomarkers discriminating the presence of CRC from healthy volunteers was obtained, showing an average recognition rate of 81.94%, a sensitivity of 87.04% and specificity of 76.85%. Conclusions: A combination of cualitative and cuantitative analysis of VOCs in the exhaled breath could be a powerful diagnostic tool for average-risk CRC population. These results should be taken with precaution, as many endogenous or exogenous contaminants could interfere as confounding variables. On-line analysis with SESI-MS is less time-consuming and doesnt need sample preparation. We are recruiting in a new pilot study including breath cleaning procedures and spirometric analysis incorporated into the postprocessing algorithms, to better control for confounding variables.

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So far, the majority of reports on on-line measurement considered soil properties with direct spectral responses in near infrared spectroscopy (NIRS). This work reports on the results of on-line measurement of soil properties with indirect spectral responses, e.g. pH, cation exchange capacity (CEC), exchangeable calcium (Caex) and exchangeable magnesium (Mgex) in one field in Bedfordshire in the UK. The on-line sensor consisted of a subsoiler coupled with an AgroSpec mobile, fibre type, visible and near infrared (visNIR) spectrophotometer (tec5 Technology for Spectroscopy, Germany), with a measurement range 3052200 nm to acquire soil spectra in diffuse reflectance mode. General calibration models for the studied soil properties were developed with a partial least squares regression (PLSR) with one-leave-out cross validation, using spectra measured under non-mobile laboratory conditions of 160 soil samples collected from different fields in four farms in Europe, namely, Czech Republic, Denmark, Netherland and UK. A group of 25 samples independent from the calibration set was used as independent validation set. Higher accuracy was obtained for laboratory scanning as compared to on-line scanning of the 25 independent samples. The prediction accuracy for the laboratory and on-line measurements was classified as excellent/very good for pH (RPD = 2.69 and 2.14 and r2 = 0.86 and 0.78, respectively), and moderately good for CEC (RPD = 1.77 and 1.61 and r2 = 0.68 and 0.62, respectively) and Mgex (RPD = 1.72 and 1.49 and r2 = 0.66 and 0.67, respectively). For Caex, very good accuracy was calculated for laboratory method (RPD = 2.19 and r2 = 0.86), as compared to the poor accuracy reported for the on-line method (RPD = 1.30 and r2 = 0.61). The ability of collecting large number of data points per field area (about 12,800 point per 21 ha) and the simultaneous analysis of several soil properties without direct spectral response in the NIR range at relatively high operational speed and appreciable accuracy, encourage the recommendation of the on-line measurement system for site specific fertilisation.

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This paper describes the objectives, contents learning methodology and results of an on-line course about History of Algorithms for engineering students of the Polytechnic University of Madrid. This course is conducted in a virtual environment based on Moodle, with an educational model centered at student which includes a detailed planning of learning activities. . Our experience indicates that this subject is is highly motivating for students and the virtual environment facilitates competencies development.

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On-line dynamic MRI, which is oriented to industrial grading lines, requires high-speed sequences with motion correction artefacts. In this study two different types of motion correction sequences have been used and have been implemented in real-time (FLASH and UFLARE). They are based on T2* and T2 respectively and their selection depends on the expected contrast effect of the disorder: while watercore enhances bright areas due to higher fluid mobility, internal breakdown potentiates low signal due to texture degradation. For watercore study, five different apple cultivars were used (Normanda-18-, Fuji-35-, Helada-36-, Verde Doncella-54-, Esperiega-75-) along two seasons (2011 and 2012). In total 218 fruits were measured under both, static conditions (20 slices per fruit) and under dynamic conditions (3 repetitions without slice selection). For internal breakdown, Braeburn cultivar has been studied (in total 106 fruits) under both static (20 slices per fruit) and dynamic conditions (3 replicates with slice selection). Metrological aspects such as repeatability of dynamic images and subsequent histogram feature stability become of major interest for further industrial application. Segregation ability among varying degrees of disorder is also analyzed.

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Maximizing energy autonomy is a consistent challenge when deploying mobile robots in ionizing radiation or other hazardous environments. Having a reliable robot system is essential for successful execution of missions and to avoid manual recovery of the robots in environments that are harmful to human beings. For deployment of robots missions at short notice, the ability to know beforehand the energy required for performing the task is essential. This paper presents a on-line method for predicting energy requirements based on the pre-determined power models for a mobile robot. A small mobile robot, Khepera III is used for the experimental study and the results are promising with high prediction accuracy. The applications of the energy prediction models in energy optimization and simulations are also discussed along with examples of significant energy savings.

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Usually, vehicle applications require the use of artificial intelligent techniques to implement control methods, due to noise provided by sensors or the impossibility of full knowledge about dynamics of the vehicle (engine state, wheel pressure or occupiers weight). This work presents a method to on-line evolve a fuzzy controller for commanding vehicles? pedals at low speeds; in this scenario, the slightest alteration in the vehicle or road conditions can vary controller?s behavior in a non predictable way. The proposal adapts singletons positions in real time, and trapezoids used to codify the input variables are modified according with historical data. Experimentation in both simulated and real vehicles are provided to show how fast and precise the method is, even compared with a human driver or using different vehicles.