963 resultados para ECG reception


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Admission: Free Open to General Public

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Conflicts force millions of people to abandon their homes and flee life-threatening persecution, war, and ethnic and political discrimination. From the end of World War II to the present day, more than 59 million people worldwide have become refugees and displaced persons. Displacement affects people's health, psychological well-being and economic welfare.

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The Camposanto of Pisa is an extraordinarily complex and evocative monument, which has captured the imagination of pilgrims, both religious and secular, for centuries. The late Medieval and early Renaissance wall paintings that line the perimeter of the portico surrounding a vast inner courtyard, are unparalleled in early Italian art, not only for their striking variety of composition and narrative complexity, but also for the sheer grandeur of their proportion. However, the passage of time has scarred the structure of the Camposanto and inflicted terrible damage on its wall paintings. This thesis explores the material reality of the Camposanto as experienced over three centuries through the eyes of British travelers. In order to situate the Camposanto mural cycle within an historical and cultural context, the first chapter provides an overview of the construction and decoration of the monument. Notably, Giorgio Vasari (1511-1574), the Italian Humanist often recognized as the father of art history, included numerous descriptions of the Camposanto murals in his highly influential text Vite de' più eccellenti pittori, scultori, ed architettori. Accordingly, the second chapter provides an analysis of Vasari’s descriptions and reflects upon the influence that the Renaissance author may have had upon the subsequent British reception of the Camposanto murals. The third chapter utilizes three centuries of travel writing in order to investigate the aesthetic impact of the Camposanto mural cycle upon British tourists from the seventeenth through to the nineteenth century.

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Hypertrophic cardiomyopathy (HCM) is a cardiovascular disease where the heart muscle is partially thickened and blood flow is - potentially fatally - obstructed. It is one of the leading causes of sudden cardiac death in young people. Electrocardiography (ECG) and Echocardiography (Echo) are the standard tests for identifying HCM and other cardiac abnormalities. The American Heart Association has recommended using a pre-participation questionnaire for young athletes instead of ECG or Echo tests due to considerations of cost and time involved in interpreting the results of these tests by an expert cardiologist. Initially we set out to develop a classifier for automated prediction of young athletes’ heart conditions based on the answers to the questionnaire. Classification results and further in-depth analysis using computational and statistical methods indicated significant shortcomings of the questionnaire in predicting cardiac abnormalities. Automated methods for analyzing ECG signals can help reduce cost and save time in the pre-participation screening process by detecting HCM and other cardiac abnormalities. Therefore, the main goal of this dissertation work is to identify HCM through computational analysis of 12-lead ECG. ECG signals recorded on one or two leads have been analyzed in the past for classifying individual heartbeats into different types of arrhythmia as annotated primarily in the MIT-BIH database. In contrast, we classify complete sequences of 12-lead ECGs to assign patients into two groups: HCM vs. non-HCM. The challenges and issues we address include missing ECG waves in one or more leads and the dimensionality of a large feature-set. We address these by proposing imputation and feature-selection methods. We develop heartbeat-classifiers by employing Random Forests and Support Vector Machines, and propose a method to classify full 12-lead ECGs based on the proportion of heartbeats classified as HCM. The results from our experiments show that the classifiers developed using our methods perform well in identifying HCM. Thus the two contributions of this thesis are the utilization of computational and statistical methods for discovering shortcomings in a current screening procedure and the development of methods to identify HCM through computational analysis of 12-lead ECG signals.

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Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2014

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This Policy Brief argues that the newly adopted EU temporary relocation (quota) system constitutes a welcome yet timid step forward in addressing a number of central controversies of the current refugee debate in Europe. Two main challenges affect the effective operability of the new EU relocation model. First, EU member states’ asylum systems show profound (on-the-ground) weaknesses in reception conditions and judicial/administrative capacities. These prevent a fair and humane processing of asylum applications. EU states are not implementing the common standards enshrined in the EU reception conditions Directive 2013/33. Second, the new relocation system constitutes a move away from the much-criticised Dublin system, but it is still anchored to its premises. The Dublin system is driven by an unfair and unsustainable rule according to which the first EU state of entry is responsible for assessing asylum applications. It does not properly consider the personal, private and family circumstances or the preferences of asylum-seekers. Policy Recommendations In order to respond to these challenges, the Policy Brief offers the following policy recommendations: The EU should strengthen and better enforce member states’ reception capacities, abolish the current Dublin system rule of allocation of responsibility and expand the new relocation distribution criteria to include in the assessment (as far as possible) asylum-seekers’ preferences and personal/family links to EU member states. EU member countries should give priority to boosting their current and forward-looking administrative and judicial capacities to deal and welcome asylum applications. The EU should establish a permanent common European border and asylum service focused on ensuring the highest standards through stable operational support, institutional solidarity across all EU external borders and the practical implementation of new distribution relocation criteria.

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The refugee crisis that unfolded in Europe in the summer of 2015 questions the effectiveness of European border and refugee policies. The breakdown of the Dublin and Schengen rules due to chaotic situations at the borders in the Balkans marks a critical juncture for the EU. We consider this breakdown as a consequence of a long-lasting co-operation crisis among EU Member States. The most recent Council decision responds to this co-operation crisis (Council Decision 12098/15). This Policy Brief analyses EU policy and politics and argues that plans for refugee relocation and reception centres as well as the use of qualified majority voting in the Council can unfold a dynamic that helps to solve the co-operation crisis. However, underlying the problems of co-operation and effectiveness is the EU’s border paradox: while EU border policy works towards refugee deterrence, EU asylum policy aims at refugee protection. The EU’s approach in regulating borders and asylum can be understood in terms of ‘organised hypocrisy’ (Brunsson, 1993). Reconciling the paradox calls for overcoming such hypocrisy.