This thesis aims to explain the operating logic and transformations over the network of human rights organizations in the Espírito Santo (Brazil) over the past decades. Recalling that the established arrangements tend to shift along the conflicts which imply changes in the structure of confrontation. In this process we try to show how political opportunities and mobilization strategies influence the success of the actions, for example, in capturing resources, as money and influence. Likewise the dynamic of mobilization tends to influence the framework of the reality of militants. In other words the content of the confrontation is not given a priori varies according the connections established by the entities and the contingencies surrounding the clash. Among our findings we highlight the existence of four cycles of confrontation, being the first in the early 80´s when occurs for the first time civil mobilizations in Grande Vitória during the end of the military regime, marked by the emergence of numerous organizations dedicated to ensuring the most basic rights to populations of the periphery, for this reason the human rights are framed as social justice, much due to the support of the Catholic Church, unions and student movement; soon after beginning the clashes against organized crime infiltrated in the State to be a malpractice environment and widespread corruption in the Espírito Santo. There is this time when the movement act to the defense of administrative probity and combat the impunity, approaching law enforcement officers, in order to legitimize their actions, leaving the streets towards the courts. As such conflicts lose strength the movement assumes new framework dedicated to the respect of the Criminal Law and the fight against torture and the bad conditions in capixaba prisons. The last confrontation cycle refers to the approval and implementation of the Programa Estadual de Direitos Humanos (PEDH) and the Programa Estadual de Educação en Direitos Humanos (PeEDH), seen by the movement as potential ways to overcome the stigmas related to the topic. In the end, both the political opportunities that have arisen over the conflict, as the available resources influence the entities to adopt strategies such as specialization and action networks in order to get success in their actions. / A presente tese propõe-se explicar as lógicas de funcionamento e as transformações atravessadas pela rede de defesa dos direitos humanos no Estado do Espírito Santo, ao longo das últimas décadas, lembrando que os arranjos estabelecidos tendem a se modificarem durante os conflitos o que implica alterações na própria estrutura do confronto. Nesse processo, procura-se mostrar como as oportunidades políticas e as estratégias de mobilização influenciam no sucesso das ações, por exemplo, na captação de recursos, como dinheiro e influência. Do mesmo modo, a dinâmica mobilizatória tende a influenciar no enquadramento da realidade dos militantes. Em outras palavras, o conteúdo do confronto não é dado a priori, varia conforme as articulações estabelecidas pelas entidades e as contingências do entorno do embate. Dentre as descobertas destaca-se a existência de quatro ciclos de confrontos: o primeiro no início dos anos 80, momento quando das primeiras mobilizações civis na Grande Vitória durante o fim do Regime Militar, marcado pela eclosão de inúmeras entidades dedicadas a garantir os direitos mais básicos para as populações da periferia, assim os direitos humanos são enquadrados a partir da justiça social, muito em função do apoio da Igreja Católica, dos sindicatos e do movimento estudantil; logo após começam os embates contra o crime organizado infiltrado no Estado a constituir um ambiente de desmandos e corrupção generalizada no Espírito Santo. Nessa época, o movimento volta-se para a defesa da probidade administrativa e combate à impunidade, aproximando-se de operadores do direito, com vistas a legitimar suas ações em ações que saem das ruas em direção aos tribunais. À medida que tais conflitos perdem força, o movimento assume novo enquadramento, dedicando-se ao respeito da Lei de Execuções Penais e ao combate à tortura e às más-condições nas prisões capixabas. O último ciclo de confronto refere-se à aprovação e execução do Programa Estadual de Direitos Humanos (PNDH) e do Plano Estadual de Educação em Direitos Humanos (PeEDH), vistos pelo movimento como potenciais formas de superar os estigmas relacionados ao tema. Em fim, tanto as oportunidades políticas surgidas ao longo dos conflitos, quanto os recursos disponíveis influenciam as entidades a adotarem estratégias como a especialização e ação em redes com vistas ao sucesso em suas ações.

Cette thèse interroge l’usage de la contention forte lors des soins en pédiatrie. Cette problématique soulève des questions philosophiques et éthiques qui s’inscrivent dans des pratiques quotidiennes de soins. Pourtant cette pratique, à laquelle se confronte fréquemment les soignants est relativement peu interrogée, voire banalisée.En effet, l’enfant effrayé ou douloureux peut se débattre et s’agiter au décours du soin et il arrive que plusieurs adultes le maintiennent pour poursuivre le geste. Un rapport de force s’installe alors entre soignants et enfant. Dans certains cas, la contrainte physique de l’enfant lors du soin s’apparente littéralement à de la violence. Le passage de l’usage légitime de la force à la violence illégitime n’est pas systématiquement identifié.Par ailleurs le fait de contraindre l’enfant de force confronte l’infirmier à un paradoxe : celui de faire mal à l’enfant pour son bien. Cela complique la perception de l’illégitimité de certaines contentions.Difficile voire impossible de renoncer à faire le soin et pourtant regrettable d’user de la contention forte à l’encontre d’un enfant malade. Une étude qualitative ancillaire à la réflexion philosophique été menée auprès de soignants de pédiatrie. L’objectif était d’interroger cette question du point de vue des soignants pour comprendre comment l’usage de la contention lors d’un soin en pédiatrie pouvait se transformer en un usage illégitime de la force. Les résultats de cette étude ont montré que la contention était une pratique laborieuse, source de malaise mais le plus souvent vécue comme inévitable et influencée par les habitudes de l’équipe d’appartenance. (Ces résultats sont en annexe de la thèse) Le « bien de l’enfant » justifiait le recours à la force. On assistait à une hiérarchisation déontologique où la réalisation du geste technique subordonne le respect du rythme de l’enfant. L’analyse de la parole des soignants a mis en évidence : empathie et attention des soignants à l’égard de l’enfant mais à l’évocation de la contention l’enfant disparaissait du discours. Un peu comme si l’enfant disparaissait du « radar émotionnel » du soignant, le temps de la contention. Le concept de « cécité empathique transitoire » a été proposé pour caractériser le phénomène qui se produit lors d’une contention forte.La thèse explore les raisons qui conduisent les adultes qui soignent à disqualifier le refus de l’enfant en proposant une forme de réhabilitation de la parole de celui-ci. Le travail s’organise autour de développement des regards et des points de vue qui tantôt masquent tantôt rendent visibles une partie de la réalité : celle de l’enfant et celle du soignant. Les soignants sont tels les prisonniers de la caverne, otages de leurs illusions. L’espoir de maitriser l’inconstance de l’existence par la grâce de la biotechnologie semble les contraindre à sacrifier leur propre subjectivité. L’arraisonnement de l’enfant mais aussi du soignant à la technique est au cœur du débat qui émerge de la réflexion. Au fil du travail, émerge l’idée d’un entre-deux des différences, qui pourrait être un nouvel espace conceptuel où les différences entre l’enfant et les soignants se rassemblent dans l’espace de la contingence. Cet entre-deux ouvre sur de nouveaux possibles, invite à devenir prudent. La prudence aristotélicienne comme disposition pratique apporte de nouvelles perspectives à cette problématique. L’invitation à la délibération dans les soins ouvre sur une proposition concrète de déploiement de la notion de care appliquée plus spécifiquement au champ de la pédiatrie. / From transitional empathic blindness to caution during care. About physical restraint during nursing care in pediatric wardsThis thesis questions the use of strong physical restraint during pediatric care. The issue raises philosophical and ethical questions falling within daily practices of nursing acts. However, this custom to which nurses are frequently exposed is rather seldom questioned or is routinized.A child who is scared or in pain can struggle or jitter during the care and it happens that serval adults retrain the child in order to finish the treatment. It is a real power struggle between the nurses and the child. Sometimes, the child’s physical restraint is similar to violence. The step from using reasonable strength to using unfounded violence is not automatically identified.Moreover, the nurse restraining a child strongly faces a paradox: hurting a child for his wellbeing. This complicates the perception of the illegitimacy of some restraints.It is difficult if not impossible to forgo the treatment, but it is nevertheless unfortunate to use physical restraint on a sick child. A qualitative research backed by a philosophical reflection has been conducted among pediatric nurses. The aim was to probe the issue from the nurses’ point of view in order to understand how the use of physical restraint during a treatment in pediatric wards could lead to the use of unfounded strength. The result of the research highlighted that restraint was an unpleasant, cumbersome practice, but that it was often experienced as unavoidable and governed by the team’s habits. (The results of the research can be found in appendix) The “child’s wellbeing” justified the use of strength, like a kind of ethical prioritization, where achieving the technical act subordinated the respect of the child’s rhythm. Analyzing the nurses’ comments highlighted their empathy and attention to the child, but when talking about restraint, the child was no longer mentioned. It seemed the child disappeared from the nurse’s “emotional radar” during a physical restraint. The idea of “transitional empathy blindness” was suggested to characterize the phenomenon occurring during a strong physical restraint.The thesis also explores the reasons leading the adults in charge of the care to disqualify the child’s refusal by offering a means to resume the dialog with the child. The work is structured around the evolution of the attitudes and opinions that sometimes conceal the child’s and the nurse’s reality and sometimes make it visible. Nurses are like prisoners in a cave, hostages of their own illusions. The hope of mastering the fickleness of life thanks to biotechnology seems to force them to sacrifice their own subjectivity. Trying to subjugate the child but also the nurse to the technical act is food for thought. Throughout the work, the idea of an in-between differences stands out. It could lead to a new concept where the differences between the child and the nurses could meet in case of contingency. This in-between opens new possibilities and encourages caution. As practical measure, Aristotle’s principle of caution develops a new insight regarding this issue. The possibility of discussing nursing practices leads to a concrete proposal to spread the notion of care more specifically in the field of pediatrics.

Hate crime laws in both Canada and the United States purport to promote equality using the language of antidiscrimination law. National criminal codes in both countries authorize enhanced punishment for crimes motivated by “sexual orientation” but not “gender identity” or “gender expression.” Cities and states in the United States have also adopted hate crime laws, some of which denounce both homophobic and trans-phobic crimes. Hate crime penalty enhancement laws have been applied by courts in both Canada and the United States to establish a growing jurisprudence. In both countries, moreover, other hate crime laws contribute to official legal knowledge by regulating hate speech, hate crime statistics, and conduct equivalent to hate crimes in schools, workplaces, and elsewhere. Yet, despite the proliferation of hate crime laws and jurisprudence, governmental officials do not control all legal knowledge about hate crimes. Sociological “others” attend criminal sentencing proceedings and provide support to hate crime victims during prosecutions, but they also frame their own unofficial inquiries and announce their own classification decisions for hate-related events. In both Canada and the United States, nongovernmental groups contend both inside and outside official governmental channels to establish legal knowledge about homophobic and trans-phobic hate crimes. In two comparable Canadian and American cities, similar groups monitor and classify homophobic and trans-phobic attacks using a variety of information practices. Interviews with representatives of these groups reveal a relationship between the practices of each group and hate crime laws at each site. The results support one principal conclusion. The availability of local legislative power and a local mechanism for public review are key determinants of the sites and styles of nongovernmental contention about hate crimes. Where police gather and publish official hate crime statistics, the official classification system serves as both a site for mobilization, and a constraint on the styles of contention used by nongovernmental groups. Where police do not gather or publish hate crime statistics, nongovernmental groups are deprived of the resource represented by a local site for social contention, but their styles of contention are liberated from the subtle influences of an official hate crime classification system. / Law, Faculty of / Graduate

Freshness of information has become of high importance with the emergence of many real- time applications like monitoring systems and communication networks. The main idea behind all of these scenarios is the same, there exists at least a monitor of some process to which the monitor does not have direct access. Rather, the monitor indirectly receives updates over time from a source that can observe the process directly. The common main goal in these scenarios is to guarantee that the updates at the monitor side are as fresh as possible. However, due to the contention among the nodes in the network over limited channel resources, it takes some random time for the updates before they are received by the monitor. These applications have motivated a line of research studying the Age of Information (AoI) as a new performance metric that captures timeliness of information. The first part of this dissertation focuses on the AoI problem in general multi-source multi-hop status update networks with slotted transmissions. Fundamental lower bounds on the instantaneous peak and average AoI are derived under general interference constraints. Explicit algorithms are developed that generate scheduling policies for status update dissem- ination throughout the network for the class of minimum-length periodic schedules under global interference constraints. Next, we study AoI in multi-access channels, where a number of sources share the same server with exponentially distributed service times to communicate to a monitor. Two cases depending on the status update arrival rates at the sources are considered: (i) random arrivals based on the Poisson point process, and (ii) active arrivals where each source can generate an update at any point in time. For each case, closed-form expressions are derived for the average AoI as a function of the system parameters. Next, the effect of energy harvesting on the age is considered in a single-source single- monitor status update system that has a server with a finite battery capacity. Depending on the server’s ability to harvest energy while a packet is in service, and allowing or blocking the newly-arriving packets to preempt a packet in service, average AoI expressions are derived. The results show that preemption of the packets in service is sub-optimal when the energy arrival rate is lower than the status update arrival rate. Finally, the age of channel state information (CSI) is studied in fully-connected wire- less networks with time-slotted transmissions and time-varying channels. A framework is developed that accounts for the amount of data and overhead in each packet and the CSI disseminated in the packet. Lower bounds on the peak and average AoI are derived and a greedy protocol that schedules the status updates based on minimizing the instantaneous average AoI is developed. Achievable average AoI is derived for the class of randomized CSI dissemination schedules.

Databases are very complex systems that require database system administrators to perform system tuning in order to achieve optimal performance. Memory tuning is vital to the performance of a database system because when the database workload exceeds its memory capacity, the results of the queries running on a system are delayed and can cause substantial user dissatisfaction. In order to solve this problem, this thesis presents a platform modeled after a closed control feedback loop to control the level of multi-query processing. Utilizing this platform provides two key assets. First, the system identification is acquired, which is one of two crucial steps involved in developing a closed feedback loop. Second, the platform provides a means to experimentally study database tuning problem and verify the effectiveness of research ideas related to database performance.

The parallel nature of process execution on chip multiprocessors (CMPs) has considerably boosted levels of application performance in the past decade. Generally, a certain number of computing resources are shared among the several cores of a CMP, such as shared last-level caches, shared-buses, and shared-memory. This ensures architectural simplicity while also boosting performance for multi-threaded applications. However, a consequence of sharing computing resources is that concurrently executing applications may suffer performance degradation if their collective resource requirements exceed the total amount of resources available. If resource allocation is not carefully considered, the potential performance gain from having multiple cores may be outweighed by the losses due to contention among processes for shared resources. Furthermore, CMPs with inbuilt dynamic voltage-frequency scaling (DVFS) may try to compensate for the performance loss by scaling to a higher frequency. For performance degradation due to shared-resource contention, this does not necessarily improve performance but guarantees a significant penalty on power consumption due to the quadratic relation of electrical power and voltage (P ∝ V^{2}*f).

How do riots affect civil conflict? The effects of riots on escalation and civil conflict have largely been overlooked in the peace and conflict literature. I argue that this omission is of particular significance because riots could act as a potent escalatory proxy for a government authority and legitimacy crisis, a robustly supported cause of escalation and civil conflict. Drawing on civil conflict theories concerning motivation, feasibility, and contentious politics, the hypothesis as riots increase, the intensity of state-based organized violence increases was developed. To test this hypothesis, a zero-inflated negative binomial regression analysis was conducted on 14728 country-month observations from African countries between 1997 and 2020, using riot events and state-based organized violence fatality data and theoretically and empirically motivated controls. Notwithstanding certain research design limitations, the regression analysis and the complementary tests and investigation strategies yielded findings that support the hypothesis and the supposition that riots tend to affect civil conflict by increasing the intensity of state-based organized violence. The novelty of the findings opens up avenues for future research and sheds light on the value of studying lower-level societal violence and minor-scale escalatory dynamics to enhance our collective understanding of civil conflicts.

The emergence of Multi/Many-core systems signified an increasing need for parallel programming. Transactional Memory (TM) is a promising programming paradigm for creating concurrent applications. At current date, the design of Distributed TM (DTM) tailored for non coherent Manycore architectures is largely unexplored. This thesis addresses this topic by analysing, designing, and implementing a DTM system suitable for low latency message passing platforms. The resulting system, named SC-TM, the Single-Chip Cloud TM, is a fully decentralized and scalable DTM, implemented on Intel’s SCC processor; a 48-core ’concept vehicle’ created by Intel Labs as a platform for Many-core software research. SC-TM is one of the first fully decentralized DTMs that guarantees starvation-freedom and the first to use an actual pluggable Contention Manager (CM) to ensure liveness. Finally, this thesis introduces three completely decentralized CMs; Offset-Greedy, a decentralized version of Greedy, Wholly, which relies on the number of completed transactions, and FairCM, that makes use off the effective transactional time. The evaluation showed the latter outperformed the three.

Les systèmes embarqués dans les véhicules comportent un mélange d’applications temps réel et « best effort » déployées, pour des raisons d’isolation, sur des calculateurs séparés. L’ajout de nouvelles fonctionnalités dans les véhicules se traduit par un accroissement du nombre de calculateurs et ainsi par une augmentation des coûts, de la consommation électrique et de la dissipation thermique.L’émergence de nouvelles plate-formes multi-cœurs à bas coûts permet d’envisager le déploiement d’une nouvelle architecture dite « virtualisée » pour exécuter en parallèle sur un même calculateur les deux types d’applications. Néanmoins, la hiérarchie mémoire de tels calculateurs, reste partagée. Une application temps réel exécutée sur un cœur peut donc voir ses temps d’accès à la mémoire ralentis par les accès effectués par les applications « best effort » exécutées en parallèle entraînant ainsi la violation des échéances de la tâche temps réel.Dans cette thèse, nous proposons une nouvelle approche de gestion de la contention mémoire. Dans une première étape, hors ligne, nous générons un oracle capable d’estimer les ralentissements d’une tâche temps réel en fonction du trafic mémoire mesuré. Dans une deuxième étape, en ligne, les tâches temps réel sont exécutées en parallèle des applications « best effort ». Un mécanisme de régulation va surveiller la consommation mémoire et utiliser l’oracle généré précédemment pour estimer le ralentissement des tâches temps réel. Lorsque le ralentissement estimé est supérieur à celui fixé par le concepteur du système les applications « best effort » sont suspendues jusqu’à ce que l’application temps réel termine son activation. / Complex embedded systems today commonly involve a mix of real-time and best-effort applications integrated on separate microcontrollers thus ensuring fault isolation and error containment. However, this solution multiplies hardware costs, power consumption and thermal dissipation.The recent emergence of low-cost multi-core processors raises the possibility of running both kinds of applications on a single machine, with virtualization ensuring isolation. Nevertheless, the memory hierarchy on such processors is shared between all cores. Memory accesses done by a real time application running on one dedicated core can be slowed down by concurrent memory accesses initiated by best effort applications running in parallels. Therefore real time applications can miss their deadlines.In this thesis, we propose a run-time software-regulation approach that aims to maximize parallelism between real-time and best-effort applications running on a single low-cost multicore ECU. Our approach uses an overhead estimation derived from offline profiling of the real-time application to estimate the slow down on the real-time application caused by memory interferences. When the estimated overhead reaches a predefined threshold, our approach suspends the best-effort applications, allowing the real-time task to continue executing without interferences. Suspended best-effort applications are resumed when the real-time application ends its current activation.

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