<p>This study attempts to look into and discuss if there are motivation factors involved when</p><p>trying to achieve a seeond language, which might effect the acquisition in any direction. The</p><p>education provided in Halmstad in Swedish as a seeond language is also studied on bases of</p><p>the IDs (Individual Differences) that might occur. The study is carried out by interviews with</p><p>eight informants. The interviews are analyzed and the results, which support previous research</p><p>in the area, are presented; and finally, in the conclusion part, suggestions for future research</p><p>are given, along with propos als on how to expand a study in this area.</p>

This study attempts to look into and discuss if there are motivation factors involved when trying to achieve a seeond language, which might effect the acquisition in any direction. The education provided in Halmstad in Swedish as a seeond language is also studied on bases of the IDs (Individual Differences) that might occur. The study is carried out by interviews with eight informants. The interviews are analyzed and the results, which support previous research in the area, are presented; and finally, in the conclusion part, suggestions for future research are given, along with propos als on how to expand a study in this area.

As our reliance on the Internet continues to grow, the need for secure, reliable networks also increases. Using a modified genetic algorithm and a switch-based neural network model, this thesis outlines the creation of a powerful intrusion detection system (IDS) capable of detecting network attacks. The new genetic algorithm is tested against traditional and other modified genetic algorithms using common benchmark functions, and is found to produce better results in less time, and with less human interaction. The IDS is tested using the standard benchmark data collection for intrusion detection: the DARPA 98 KDD99 set. Results are found to be comparable to those achieved using ant colony optimization, and superior to those obtained with support vector machines and other genetic algorithms. / Thesis (Master, Computing) -- Queen's University, 2009-03-03 13:28:23.787

Cette thèse vise à contribuer à l'amélioration des méthodes d'évaluation des systèmes de détection d'intrusion (en anglais, Intrusion Detection Systems ou IDS). Ce travail est motivé par deux problèmes actuels : tout d'abord, l'augmentation du nombre et de la complexité des attaques que l'on observe aujourd'hui nécessite de faire évoluer les IDS pour leur permettre de les détecter. Deuxièmement, les IDS actuels génèrent de trop fréquentes fausses alertes, ce qui les rend inefficaces voir inutiles. Des moyens de test et d'évaluation sont nécessaires pour déterminer la qualité de détection des IDS et de leurs algorithmes de détection. Malheureusement, il n'existe pas actuellement de méthode d'évaluation satisfaisante. En effet, les méthodes employées jusqu'ici présentent trois défauts majeurs : 1) une absence de méthodologie rigoureuse, 2) l'utilisation de données de test non représentatives, et 3) l'utilisation de métriques incorrectes. Partant de ce constat, nous proposons une démarche rigoureuse couvrant l'ensemble de l'évaluation des IDS. Premièrement, nous proposons une méthodologie d'évaluation qui permet d'organiser l'ensemble du processus d'évaluation. Deuxièmement, afin d'obtenir des données de test représentatives, nous avons défini une classification des types d'attaques en fonction des moyens de détection utilisés par les IDS. Cela permet non seulement de choisir les attaques à inclure dans les données de test mais aussi d'analyser les résultats de l'évaluation selon les types d'attaques plutôt que sur chaque attaque individuellement. Troisièmement, nous avons analysé un grand nombre d'attaques réelles et de " maliciels " connus, tels que les virus et les vers. Grâce à cette analyse, nous avons pu construire un modèle générique de processus d'attaques qui met en évidence la dynamique des activités d'attaque. Ce modèle permet de générer un nombre important de scénarios d'attaques à la fois réalistes et variés. Les méthodes proposées ont été expérimentées su r deux systèmes de détection d'intrusion très différents, pour montrer la généralité de notre démarche. Les résultats montrent que l'approche proposée permet de surmonter les deux défauts principaux des évaluations existantes, à savoir l'absence de méthodologie et l'utilisation de données non représentatives. Elle permet en particulier de mieux gérer le processus d'évaluation et de choisir les cas de test pertinents pour les types d'IDS et les objectifs de l'évaluation, tout en couvrant une large partie de l'espace d'attaques.

Les agents mobiles peuvent physiquement migrer à travers un réseau informatique dans le but d'effectuer des tâches sur des machines, ayant la capacité de leur fournir un support d'exécution. Ces agents sont considérés comme composants autonomes, une propriété qui leur permet de s'adapter à des environnements dynamiques à l'échelle d'un réseau large. Ils peuvent également échanger des informations entre eux afin de collaborer au sein de leur groupe, nous parlerons ainsi d'une communauté d'agents mobiles. Nous avons développé ce concept de communauté, en se référant aux recherches et aux études précédentes pour définir un nouveau modèle comportemental d'agent mobile. Ce modèle est utilisé pour répondre aux besoins de la surveillance logicielle. Celle ci consiste à collecter des événements à partir de plusieurs sources de données (Log, événements système...) en vue de leur analyse pour pouvoir détecter des événements anormaux. Cette démarche de surveillance s'appuie sur plusieurs types d'agents mobiles issus du même modèle. Chaque type d'agent gère un domaine fonctionnel précis. L'ensemble des ces agents constitue une communauté pouvant collaborer avec différentes autres communautés lorsqu'il existe plusieurs sites à surveiller. Les résultats de cette approche nous ont permis d'évoquer les limites liées à la taille des données collectées, ce qui nous amène à de nouvelles perspectives de recherche et à penser un agent mobile "idéal". Enfin, nous nous intéressons également à l'application de la communauté d'agent mobile pour les systèmes de détection d'intrusion et la remontée d'anomalie

Despite increased awareness of threats against Critical Infrastructure (CI), securing of Supervisory Control and Data Acquisition (SCADA) systems remains incomplete. The majority of research focuses on preventative measures such as improving communication protocols and implementing security policies. New attempts are being made to use commercial Intrusion Detection System (IDS) software to protect SCADA systems. These have limited effectiveness because the ability to detect specific threats requires the context of the SCADA system. SCADA context is defined as any information that can be used to characterise the current status and function of the SCADA system. In this thesis the standard IDS model will be used with the varying SCADA data sources to provide SCADA context to a signature and anomaly detection engine. A novel addition to enhance the IDS model will be to use the SCADA data sources to simulate the remote SCADA site. The data resulting from the simulation is used by the IDS to make behavioural comparison between the real and simulated SCADA site. To evaluate the enhanced IDS model the specific context of a water and wastewater system is used to develop a prototype. Using this context it was found that the inflow between sites has similar diurnal characteristic to network traffic. This introduced the idea of using inflow data to detect abnormal behaviour for a remote wastewater site. Several experiments are proposed to validate the prototype using data from a real SCADA site. Initial results show good promise for detecting abnormal behaviour and specific threats against water and wastewater SCADA systems.

Submitted by Maria Medeiros (maria.dilva1@ufcg.edu.br) on 2018-06-21T12:56:17Z No. of bitstreams: 1 ADRIANA SALETE DANTAS DE FARIAS - TESE (PPGRN) 2014.pdf: 2045602 bytes, checksum: 607530916eec27e5338d07950b6dcd67 (MD5) / Made available in DSpace on 2018-06-21T12:56:17Z (GMT). No. of bitstreams: 1 ADRIANA SALETE DANTAS DE FARIAS - TESE (PPGRN) 2014.pdf: 2045602 bytes, checksum: 607530916eec27e5338d07950b6dcd67 (MD5) Previous issue date: 2014 / A incorporação de eco-inovações nas atividades produtivas de uma empresa pode favorecer o alcance de benefícios econômicos, ambientais e/ou sociais. Tomando como referência as atividades agrícolas da fruticultura de manga desenvolvida na região Submédio São Francisco, que são realizadas, em grande medida, visando atender ao mercado externo, e que por isso necessitam ser realizadas de maneira eficiente e, ao mesmo tempo, devem observar critérios de qualidade para garantir a segurança do alimento e, critérios ambientais, para minimizar o impacto da atividade; considera-se que, a utilização de eco-inovações nas empresas produtoras de manga da região pode contribuir para a sustentabilidade dessa atividade. Nesse sentido, foi objetivo desta pesquisa analisar os benefícios das eco-inovações adotadas nas atividades de fruticultura de manga da região Submédio São Francisco e suas contribuições para a sustentabilidade dessa atividade agrícola. Para suportar as análises relativas, foram utilizados dois constructos: para identificação e tipificação de eco-inovações e de seus benefícios foi utilizada a tipologia de eco-inovações de Könnölä, Carrillo-Hermosilla e Gonzalez (2008); e, para analisar a sustentabilidade da fruticultura de manga da região, foi utilizada a metodologia de cálculo do Índice de Desenvolvimento Sustentável – IDS, de Sepúlveda (2008). A partir da adaptação desses modelos teóricos visando à aplicação nas atividades da fruticultura de manga, foi desenvolvido um instrumento de coleta de dados, tipo formulário semi-estruturado, para orientar as visitas a empresas do setor na região, a fim de coletar informações sobre as variáveis definidas para avaliação da relação entre adoção de eco-inovações e sustentabilidade dessa atividade agrícola. Foram visitadas dez empresas produtoras e exportadoras de manga para coleta de dados primários. De acordo com os parâmetros ou com a escala de ponderação definidos, esses dados foram submetidos a análises qualitativas e/ou quantitativas. Como resultados da aplicação do modelo de eco-inovações na fruticultura de manga da região Submédio São Francisco verificou-se que a quantidade de eco-inovações adotadas pelas empresas da pesquisa é baixa, em relação às possibilidades disponíveis nas cinco dimensões do modelo utilizado. O tipo de benefício das eco-inovações adotadas é predominantemente econômico. O resultado do índice do desenvolvimento sustentável- IDS para a fruticultura de manga na região, de 0,51, caracteriza o estado instável dessa atividade. Assim, verificou-se que há uma relação efetiva entre a presença de eco-inovações e o estado da sustentabilidade da fruticultura de manga na região porque, à medida que poucas eco-inovações foram adotadas, priorizando o alcance de benefícios econômicos, isso se refletiu na avaliação do IDS da atividade, que indicou o estado da fruticultura de manga na região como “instável”, em termos de sustentabilidade. / The incorporation of eco-innovations in the productive activities of a company can enhance the achievement of economic, environmental and social benefits. With reference to productive activities of mango developed in the Submédio São Francisco region, which are held, largely to meet the foreign market, and therefore need to be accomplished efficiently and at the same time must comply with criteria quality to ensure food safety and environmental criteria, to minimize the impact of the activity; it is considered that the use of eco-innovations in mango production companies in the region can contribute to the sustainability of this activity. In this sense, this research objective was to analyze the benefits of eco-innovations adopted in the mango production activities of the Submédio São Francisco region and its contributions to the sustainability of agriculture. To support the analyses in both constructs were used: for identification and characterization of eco-innovations and their benefits we used the typology of eco-innovations by Könnölä, Carrillo-Hermosilla and Gonzalez (2008); and to analyze the sustainability of productive activities of mango in the region, we used the methodology of calculation of Sustainable Development Index – SDI, by Sepúlveda (2008). From the adaptation of theoretical models aimed at implementing the activities of production mango, we developed a data collection instrument, semi-structured type form, to guide the visits to companies in the sector in the region in order to collect information on variables set to assess the relationship between adoption of eco-innovations and sustainability of agriculture. Were visited ten companies exporters of mango to collect primary data. In accordance with the defined parameters or the weight scale, these data were subjected to qualitative and/or quantitative analysis. As an application of the results of the eco-innovation model in production mango in the Submédio São Francisco region, found that the amount of eco-innovations adopted by companies is low in relation to the possibilities available in the five dimensions of the model and, the type of benefits of eco-innovations adopted is predominantly economic. The result of the SDI for productive activities of mango in the region was 0.51, featuring the unstable state of this activity. Thus, it was found that there is an effective relationship between the presence of eco-innovations and the state of sustainability of productive activities of mango in the region because, as few ecoinnovations were adopted, prioritizing the economic benefits, this was reflected in the evaluation of SDI of activity, which indicated the state of the mango production in the region as "unstable", in terms of sustainability.

This diploma thesis focuses on selected aspects influencing the psychological development of children in homoparental families. The motivation to investigate these aspects is the growing number of children raised in homoparental families, which in turn evokes a debate in our society about possible impacts on the psychological and social development of these children. The aim of this diploma thesis is to determine level of socio-emotional competencies of children in homoparental families and to discover possible differences in their development. This goal was achieved by testing the socio-emotional competencies of a sample of four school-aged children using a standard IDS test and a questionnaire focusing on a challenging school and life situation. To deepen the knowledge about the families and the understanding of the background of upbringing, biographical and anamnestic core data questionnaire was sent to the families before personal meetings and also each child and one or both of his mothers were interviewed. The results of the tests and the questionnaires show no deviation of children raised in homoparental families from the average of heteronormative society in the field of the recognition and regulation of emotions, understanding of social situations and socially competent behavior. The...

The use of Intrusion Detection Systems is a normal thing today in bigger companies, butthe solutions that are to be found in market is often too expensive for the smallercompany. Therefore, we saw the need in investigating if there is a more affordablesolution. In this report, we will show that it is possible to use low cost single boardcomputers as part of a bigger centralized Intrusion Detection System. To investigate this,we set up a test system including 2 Raspberry Pi 3 Model B, a cloud server and the use oftwo home networks, one with port mirroring implemented in firmware and the other withdedicated span port. The report will show how we set up the environment and the testingwe have done to prove that this is a working solution.

This paper deals with corpus linguistics. There are two applications under its scrutiny. Both of these applications are processing data from the corpus DeReKo via corpus-driven approach. It is a co-occurrence analysis and a Co-occurrence database. The aim of the work is to evaluate whether the results obtained by the co-occurrence analysis of the current scope of DeReKo are different from the results of the Co-occurrence database, which was created on a basis of a smaller scale corpus. In addition, this thesis offers illustrative examples of the use of both applications and the evaluation of their effectiveness, depending on the purpose of the research. The theoretical part of the thesis deals with the terminology of corpus linguistics and with the mentioned corpuses, which serve as a basis for the practical part of the thesis. The empirical part of the thesis consists of analyses of the randomly picked words (one from each word class) in both applications. The results confirm that the data obtained with Co-occurrence database and co-occurrence analysis are in many respects different and thus confirm the hypothesis that the corpus size plays a crucial role in the results. Both applications have their advantages and disadvantages. The paper offers a comprehensive overview and by doing so it...