A user using a Web application generates HTTP traffic which can be captured and logged to be used for further analysis such as finding potential security holes. This document provides a method to reconstruct user-interactions from HTTP network traffic with a specific focus on RIAs. The only input provided is the full, unaltered HTTP network traffic of the original user-session. This thesis presents a system to replay HTTP trace for reconstructing the user-interactions using a programmable Web browser that is used to simulate user's actions and to execute client-side scripts. The experimental results show that the proposed solution in this thesis leads to a system which has a good performance in reconstructing user-interactions. The system performs an automated reconstruction of the user-interactions which reconstructs every DOM state that has been visited by the user during the user-session and the actions taken by the user, including user-inputs provided by the user.

Submitted by Pedro Barros (pedro.silvabarros@ufpe.br) on 2018-08-21T17:33:48Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) DISSERTAÇÃO Cláudio Rodrigo Vasconcelos Silva.pdf: 2950616 bytes, checksum: f5657076a44027b4f39f15142ab471d5 (MD5) / Approved for entry into archive by Alice Araujo (alice.caraujo@ufpe.br) on 2018-08-29T18:58:27Z (GMT) No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) DISSERTAÇÃO Cláudio Rodrigo Vasconcelos Silva.pdf: 2950616 bytes, checksum: f5657076a44027b4f39f15142ab471d5 (MD5) / Made available in DSpace on 2018-08-29T18:58:27Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) DISSERTAÇÃO Cláudio Rodrigo Vasconcelos Silva.pdf: 2950616 bytes, checksum: f5657076a44027b4f39f15142ab471d5 (MD5) Previous issue date: 2016-09-30 / A presente dissertação tem como objetivo principal analisar a prática docente de professor de História de escola de referência no Estado de Pernambuco ao conduzir um projeto didático baseado na linguagem dos jogos, o roleplaying game (RPG), na sala de aula. Fundamentam as análises as discussões teóricas sobre a prática docente na perspectiva de Paulo Freire, as discussões sobre os saberes docentes, principalmente, aportadas por Maurice Tardif e sobre jogos apoiadas em Johan Huizinga e jogos e educação em Gilles Brougère. A pesquisa caracteriza-se como um estudo de caso do tipo etnográfico, nos termos que a entende Marli André e foi realizada a partir de observações participantes de sete turmas de 1º ano do ensino médio onde o projeto didático foi executado, seguidas de entrevistas semiestruturadas com o professor, a coordenadora pedagógica e 25 alunos, além de análise documental do material produzido pelos alunos. A análise dos dados foi feita sob à luz da análise de conteúdo, baseada na técnica da análise temática, tal como a concebe Laurence Bardin. O projeto didático que dá título a essa dissertação, Alea Jacta Est, desvelou o papel do professor sujeito da pesquisa no enfrentamento aos principais problemas da escola campo de pesquisa, bem como evidenciou o enorme potencial da prática docente e dos saberes docentes construídos pelo professor que conduz o projeto didático baseado no jogo de RPG na sala de aula no desenvolvimento da leitura e escrita históricas, na construção de ganhos pedagógicos, dentre eles destacamos o exercício da expressão oral e escrita, a construção das habilidades interpretativas e argumentativas, a construção do conhecimento histórico escolar, portanto, a assunção da autonomia intelectual dos alunos, além do desenvolvimento de valores sociais como a ética, o trabalho em grupo, a cooperação e a solidariedade, o respeito ao próximo e o saber ouvir. / This thesis aims to analyze the teacher teaching practice History of reference school in the state of Pernambuco to conduct an educational project based on the games of language, the roleplaying game (RPG) in the classroom. Establish the theoretical discussions analysis of teaching practice from the perspective of Paulo Freire, discussions on teaching knowledge, mainly aportadas by Maurice Tardif and on games supported by Johan Huizinga and games and education Gilles Brougère. The research is characterized as a case study of ethnographic type, according to the mean Marli André and was held from participant observations of seven high school year 1 classes where the teaching project was carried out, followed by semi-structured interviews with the teacher, the educational coordinator and 25 students, and documentary analysis of the material produced by the students. Data analysis was made in the light of the content analysis, based on thematic analysis technique, as he conceives Laurence Bardin. The educational project that gives title to this dissertation, Alea Jacta Est, unveiled the role of the research subject teacher in addressing the main problems of school research field, as well as highlighted the enormous potential of the teaching practice and teaching knowledge built by the teacher conducts educational project based RPG game in the classroom in the development of reading and historical writing, in the construction of educational gains, among them highlight the practice of oral and written expression, the construction of interpretive and argumentative skills, knowledge construction school records, so the assumption of intellectual autonomy of students, and the development of social values such as ethics, teamwork, cooperation and solidarity, respect for others and listening.

Development of computer networks able to operate at the speed of 10 Gb/s imposes new requirements on newly developed network devices and also on a process of their testing. Such devices are tested by replaying synthetic or previously captured network traffic on an input link of the tested device. We must be able to perform both tasks also at full wire speed. Current testing devices are either not able to operate at the speed of 10 Gb/s or they are too expensive. Therefore, the aim of this thesis is to design and implement a hardware accelerated application able to generate and replay network traffic at the speed of 10 Gb/s. The application is accelerated in the FPGA of the COMBOv2 card and it also utilizes the NetCOPE platform. Architecture of the application is modular, which allows easy implementation of different modes of operation. The application implements both capturing and replaying network traffic at full wire speed, but traffic can be limited to a specified value of bitrate at the output. The thesis is concluded by a comparison of the implemented application and the packet generator implemented on the NetFPGA platform. According to this comparison, the implemented application is better than the NetFPGA packet generator.

Inspired by Gould, who claimed life would be arriving at a different outcome each time it were allowed to run from the same beginning, I have attempted to determine the repeatability of the adaptive course of one Pseudomonas fluorescens lineage. In addition, my study aimed to establish whether the likelihood of parallel evolution of the two synonymous single-nucleotide substitutions was contingent upon a prior motility-impairing deletion or a prior increase in fitness. Further, the study was designed to provide empirical data addressing the long-standing question of the effect of starting fitness on the ensuing rate of adaptation. Although no exact replay of the initial evolutionary trajectory was observed, I have demonstrated that gtsB, but not gtsC gene, is likely to be a mutational hotspot under the low glucose with a recovery of two undescribed mutations in gtsB. My data are consistent with a notion that substitutions in gtsB may be contingent upon Δ35kB(fliJ-PFLU4466) motility-impairing deletion, but not the fitness increase associated with it. Finally, the features of the adaptive landscape of P. fluorescens in the minimal glucose provide languid support for Fisher’s hypothesis of a decrease in adaptation rate with the rise in the starting fitness. Taken together, these original results reinforce the non-negligible role of history in shaping the outcomes of biological evolution and call for caution in attempting a formulation of rigid predictive models of evolutionary change. Inspiré par les travaux de Stephen J. Gould qui affirmait que la vie sur terre arriverait à une forme différente si elle repartait à zéro, je présente ici mes travaux où je teste la reproductibilité du cours adaptatif d’une lignée expérimentale de Pseudomonas fluorescens. L’objectif de cette étude était de déterminer si la probabilité que deux mutations synonymes évoluent en parallèle est affectée par la présence d’une délétion affectant la motilité de la bactérie ou de l’augmentation de la valeur sélective de celle-ci. De plus, le design expérimental de cette étude permet de tester si la valeur sélective initiale d’une population affecte le taux d’adaptation de cette même population. Bien d’une reproductibilité exacte du cours adaptatif initial ne fut pas observée, je démontre que le gène gtsB est probablement un « hotspot »mutationnel permettant l’adaptation à de bas niveau de glucose, ayant trouvé deux mutations dans ce site; alors que le gène gtsC ne l’est pas. Mes données sont également conséquentes avec le fait que les mutation dans le gène gtsB dépendent de l’effet de la délétion Δ35kB(fliJ-PFLU4466) affectant la motilité de la bactérie, mais non de l’augmentation de la valeur sélective qui y est associée. Finalement, la forme du plateau adaptative associé à de bas niveaux de glucose chez P. fluorescens supporte l’hypothèse émise par Fisher qui stipule que le taux d’adaptation d’un organisme diminue avec la valeur sélective initiale qui y est associée. L’ensemble de ces résultats supporte le rôle non-négligeable de l’histoire de vie d’une population en ce qui attrait à l’évolution future de cette même population. Aussi, ces résultats appelle à la prudence quand vient le temps de formuler des modèles prédictifs des changements évolutifs d’une population.

Inspired by Gould, who claimed life would be arriving at a different outcome each time it were allowed to run from the same beginning, I have attempted to determine the repeatability of the adaptive course of one Pseudomonas fluorescens lineage. In addition, my study aimed to establish whether the likelihood of parallel evolution of the two synonymous single-nucleotide substitutions was contingent upon a prior motility-impairing deletion or a prior increase in fitness. Further, the study was designed to provide empirical data addressing the long-standing question of the effect of starting fitness on the ensuing rate of adaptation. Although no exact replay of the initial evolutionary trajectory was observed, I have demonstrated that gtsB, but not gtsC gene, is likely to be a mutational hotspot under the low glucose with a recovery of two undescribed mutations in gtsB. My data are consistent with a notion that substitutions in gtsB may be contingent upon Δ35kB(fliJ-PFLU4466) motility-impairing deletion, but not the fitness increase associated with it. Finally, the features of the adaptive landscape of P. fluorescens in the minimal glucose provide languid support for Fisher’s hypothesis of a decrease in adaptation rate with the rise in the starting fitness. Taken together, these original results reinforce the non-negligible role of history in shaping the outcomes of biological evolution and call for caution in attempting a formulation of rigid predictive models of evolutionary change. Inspiré par les travaux de Stephen J. Gould qui affirmait que la vie sur terre arriverait à une forme différente si elle repartait à zéro, je présente ici mes travaux où je teste la reproductibilité du cours adaptatif d’une lignée expérimentale de Pseudomonas fluorescens. L’objectif de cette étude était de déterminer si la probabilité que deux mutations synonymes évoluent en parallèle est affectée par la présence d’une délétion affectant la motilité de la bactérie ou de l’augmentation de la valeur sélective de celle-ci. De plus, le design expérimental de cette étude permet de tester si la valeur sélective initiale d’une population affecte le taux d’adaptation de cette même population. Bien d’une reproductibilité exacte du cours adaptatif initial ne fut pas observée, je démontre que le gène gtsB est probablement un « hotspot »mutationnel permettant l’adaptation à de bas niveau de glucose, ayant trouvé deux mutations dans ce site; alors que le gène gtsC ne l’est pas. Mes données sont également conséquentes avec le fait que les mutation dans le gène gtsB dépendent de l’effet de la délétion Δ35kB(fliJ-PFLU4466) affectant la motilité de la bactérie, mais non de l’augmentation de la valeur sélective qui y est associée. Finalement, la forme du plateau adaptative associé à de bas niveaux de glucose chez P. fluorescens supporte l’hypothèse émise par Fisher qui stipule que le taux d’adaptation d’un organisme diminue avec la valeur sélective initiale qui y est associée. L’ensemble de ces résultats supporte le rôle non-négligeable de l’histoire de vie d’une population en ce qui attrait à l’évolution future de cette même population. Aussi, ces résultats appelle à la prudence quand vient le temps de formuler des modèles prédictifs des changements évolutifs d’une population.