L’objectif de cette thèse était d’évaluer l’implantation, les effets différentiels et les processus du programme Check & Connect (C&C), une intervention visant la prévention de l’abandon scolaire. De nature ciblée, cette intervention s’adresse aux élèves à risque de décrochage scolaire. Par le biais de la création d’une relation significative avec un mentor, du monitorage systématique des indicateurs de désengagement scolaire, d’interventions différentielles adaptées aux besoins des élèves et de la communication positive avec la famille de ces derniers, ce programme développé aux États-Unis au début des années 1990 a été maintes fois évalué en sol américain. Cette évaluation s’intéresse à l’adaptation québécoise du programme, réalisée dans deux commissions scolaires de la grande région de Montréal, et ce tant au niveau primaire qu’au niveau secondaire. L’évaluation de l’implantation, des effets différentiels et des processus s’insère dans un projet plus vaste de validation écologique du programme réalisée à l’aide d’un devis expérimental dans le cadre duquel le groupe contrôle équivalent a reçu les interventions typiquement prévues dans les écoles : l’intervention C&C est donc comparée aux interventions typiquement mises en place dans les écoles pour les élèves à risque d’abandon scolaire. L’évaluation de l’implantation et des effets différentiels a été réalisée à la suite des deux années d’implantation auprès des 345 élèves du primaire et du secondaire ayant été exposés au programme et des 54 mentors impliqués. La fidélité d’implantation a été évaluée en relation avec les effets du programme à l’aide d’analyses quantitatives de fréquence et de régressions linéaires. L’évaluation des processus a également été réalisée une fois l’implantation terminée; des entrevues semi-structurées ont été réalisées auprès de 12 acteurs impliqués dans l’implantation. Des analyses thématiques, puis des études de cas ont été complétées afin d’explorer les processus d’implantation. Le premier chapitre empirique de la thèse présente l’évaluation de l’implantation et des effets différentiels du programme C&C. Cette étude a permis de constater des taux de fidélité d’implantation variables d’une composante du programme à l’autre, et d’un site d’implantation à un autre. De plus, les résultats révèlent que la fidélité d’implantation est associée aux effets du programme sur l’engagement et le rendement scolaires. Néanmoins, cette association varie grandement d’une composante du programme et d’un site d’implantation à un autre, ce qui suggère d’importantes influences contextuelles sur l’implantation. Le second chapitre empirique de la thèse présente l’évaluation des processus d’implantation de C&C dans 4 cas de figure distincts. Cette évaluation révèle de nombreux processus ayant influencé l’expérience d’implantation des acteurs interrogés. Les résultats suggèrent par ailleurs une influence dynamique des processus : des parallèles sont faits avec une théorie issue de la psychologie organisationnelle, la théorie du changement planifié, qui suggère la considération de l’implantation d’un programme d’intervention comme un changement de pratiques. En somme, les évaluations présentées dans la thèse soutiennent d’une part l’importance d’une implantation fidèle lorsque vient le temps de faire appel à un programme d’intervention. La thèse suggère de surcroît la nécessité de s’assurer d’une préparation adéquate et de la mise en place de conditions optimales pour l’intervenant et l’organisation désirant implanter un programme d’intervention en milieu scolaire, puisque la fidélité d’implantation n’est pas garante à elle seule d’effets positifs suite à l’implantation. / The present thesis aimed to evaluate the implementation, differential effects and processes of Check & Connect (C&C), a dropout prevention program. This targeted intervention promotes the development of a significant relationship with a mentor in addition to the use of systematic monitoring of disengagement indicators, differential and adapted interventions and positive school-family communication in order to help students at risk of dropping out of school. Developed in the 1990s in the United States, this program was evaluated many times in American school settings. This evaluation focuses on a French-Canadian adaptation of C&C, implemented in elementary and secondary schools of two school boards in the Montreal area. The evaluation of the implementation, implementation processes, and differential effects is part of a larger ecological and experimental validation of the program in which students of the control group received the usual interventions typically offered to at-risk students in their schools. Implementation and differential effects evaluations were conducted after the two-year implementation of C&C among a sample of 345 elementary and secondary-level students and their 54 mentors. Implementation fidelity and its relations to program effects were evaluated using frequency analyses and linear regressions. Process evaluation was also completed post-intervention: semi-structured interviews were conducted with 12 actors directly involved in the implementation. Qualitative thematic analyses and case studies were then completed in order to explore implementation processes. The first empirical chapter of this thesis presents the evaluations of C&C’s implementation and differential effects. This evaluation revealed high variability in implementation fidelity rates from one program component to another, and across implementation sites. Further, results suggest that implementation fidelity is associated to C&C’s effects on student engagement and achievement. Nevertheless, that relation varies from one program component to another and based on implementation context. The second empirical chapter of the thesis presents the evaluation of C&C’s process in four distinct cases. This evaluation reveals that many processes influenced the implementation experience of interviewed actors. Results also show the dynamic influences of implementation processes. These dynamics are illustrated using a theory originating from organizational psychology: the Theory of Planned Change, which presents the implementation of an intervention program as a change in practices. In conclusion, the evaluations presented in this thesis first support the importance of implementation fidelity and context to achieve the desired effects when instigating an intervention program. For professionals and organizations interested in implementing an intervention program in a school setting, results further suggest the importance of adequate preparation and optimal implementation conditions, since implementation fidelity in itself is not sufficient to ensure positive intervention results.

<p>This thesis presents a comparative study of four Network Access Control (NAC) technologies; Trusted Network Connect by the Trusted Computing group, Juniper Networks, Inc.’s Unified Access Control, Microsoft Corp.’s Network Access Protection, and Cisco Systems Inc.’s Network Admission Control. NAC is a vision, which utilizes existing solutions and new technologies to provide assurance that any device connecting to a network policy domain is authenticated and is subject to the network’s policy enforcement. Non-compliant devices are isolated until they have been brought back to a complaint status. We compare the NAC technologies in terms of architectural and functional features they provide.</p><p>There is a race of NAC solutions in the marketplace, each claiming their own definition and terminology, making it difficult for customers to adopt such a solution, resulting in much uncertainty. The NAC paradigm can be classified into two categories: the first category embraces open standards; the second follows proprietary standards. By selecting these architectures, we cover a representative set of proprietary and open standards-based NAC technologies.</p><p>This study concludes that there is a great need for standardization and interoperability of NAC components and that the four major solution proposals that we studied fall short of the desired interoperability. With standards, customers have the choice to adopt solution components from different vendors, selecting, what is commonly referred to as the best of breed. One example for a standard technology that all four NAC technologies that we studied did adopt is the IEEE’s 802.1X port-based access control technology. It is used to control endpoint device access to the network.</p><p>One shortcoming that most NAC architectures (with the exception of Trusted Network Connect) have in common, is the lack of a strong root-of-trust. Without it, clients’ compliance measurements cannot be trusted by the policy server whose task is to assess each client’s policy compliance.</p>

This thesis presents a comparative study of four Network Access Control (NAC) technologies; Trusted Network Connect by the Trusted Computing group, Juniper Networks, Inc.’s Unified Access Control, Microsoft Corp.’s Network Access Protection, and Cisco Systems Inc.’s Network Admission Control. NAC is a vision, which utilizes existing solutions and new technologies to provide assurance that any device connecting to a network policy domain is authenticated and is subject to the network’s policy enforcement. Non-compliant devices are isolated until they have been brought back to a complaint status. We compare the NAC technologies in terms of architectural and functional features they provide. There is a race of NAC solutions in the marketplace, each claiming their own definition and terminology, making it difficult for customers to adopt such a solution, resulting in much uncertainty. The NAC paradigm can be classified into two categories: the first category embraces open standards; the second follows proprietary standards. By selecting these architectures, we cover a representative set of proprietary and open standards-based NAC technologies. This study concludes that there is a great need for standardization and interoperability of NAC components and that the four major solution proposals that we studied fall short of the desired interoperability. With standards, customers have the choice to adopt solution components from different vendors, selecting, what is commonly referred to as the best of breed. One example for a standard technology that all four NAC technologies that we studied did adopt is the IEEE’s 802.1X port-based access control technology. It is used to control endpoint device access to the network. One shortcoming that most NAC architectures (with the exception of Trusted Network Connect) have in common, is the lack of a strong root-of-trust. Without it, clients’ compliance measurements cannot be trusted by the policy server whose task is to assess each client’s policy compliance.

上海證券交易所與香港聯合交易所於2014年11月17日啟動滬港通計劃，允許兩地投資者在本地交易所買賣對方市場的股票。本文試圖以漲跌幅限制之磁吸現象探討滬港通對上海股市的影響。文章延用Hsieh, Kim and Yang(2009)之Logit回歸，將參與滬股通之股票以換手率與市值區分，藉以檢測不同組合股票之磁吸現象。研究結果顯示，在樣本期間發現當較高市值股票漲幅達9.5%以上出現磁吸現象，當較低市值股票漲幅達9%以上出現冷卻現象。而兩種組合的股票跌幅達6%以上時均出現反轉效果。為比較滬港通前後之變化，本文加入虛擬變數以區分事件前後，研究結果顯示，滬港通啟動後較高市值股票跌幅達9.5%以上、較低市值股票漲幅達8%以上時出現磁吸現象，冷卻現象消失，可得知滬港通並沒有產生理性作用。本文發現已在兩地上市之A+H股的磁吸現象在滬港通啟動後消失，可推測資訊不對稱及交易規則讓A股的外國投資者無法選擇最佳策略，而雙重上市股票則可以讓其於價格觸發漲跌幅限制前調整交易策略。 / SSE and HKEX have provided Shanghai-Hong Kong Stock Connect since Nov. 17th, 2014, which allows investors in one market to trade shares listed on the other market through their local brokers. The article attempts to discuss the impact of Shanghai-Hong Kong Stock Connect on Shanghai stock market from the perspective of the magnet effect. Using a logit model proposed by Hsieh, Kim and Yang (2009), the thesis classifies the stocks as turnover rate and market capitalization, examining the magnet effect with different portfolios. The results demonstrate that the magnet effect appears as the price of large stocks increases 9.5% while the cool-off effect initiates as the price of small stocks decreases 9%. Reversal effect is found in both large and small stock when the decline of the price exceeds 6%. Moreover, a dummy variable is introduced in the regression to capture the difference made by the Connect. The evidence of magnet effect is shown respectively when the price of large stocks decreases 9.5% and when the price of small stocks decreases 8% after the Connect launched. Price limits fail to cool off the market. Therefore, the program may not rationalize Shanghai stock market. Due to the disappearance of magnet effect on A+H shares after the link between two markets, the thesis conjectures the program may provide an opportunity to switch to Hong Kong market before the price crosses the limit bound. However, information disadvantage and strict trading rules force foreign investors trading on A-shares to make suboptimal strategies.

The master’s thesis analyzes the key performance areas of the call centre, which contact debtors of nonbank company, which provides loans. An author analyze a collection process with a wide range of statistical methods and then propose actions, which would lead to do this process more effective, which overall will lead to a better performance of whole call centre.

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As software systems become increasingly larger and more complex, the need to make them easily maintained increases, as large systems are expected to last for many years. It has been estimated that system maintenance is a large part of many IT-departments’ software develop­ment costs. In order to design a complex system to be maintainable it is necessary to introduce structure, often as models in the form of a system architecture and a system design. As development of complex large-scale systems progresses over time, the models may need to be reconstructed. Perhaps because development may have diverted from the initial plan, or because changes had to be made during implementation. This thesis presents a reconstructed documentation of a complex large-scale system, as well as suggestions for how to improve the existing design based on identified needs and insufficiencies. The work was performed primarily using a qualitative manual code review approach of the source code, and the proposal was generated iteratively. The proposed design was evaluated and it was concluded that it does address the needs and insufficiencies, and that it can be realistically implemented.

No description available.

Collaboration in engineering product development leads to shorter product development times and better products. In product development, considerable time is spent preparing the CAD model or assembly for Finite Element Analysis (FEA). In general Computer-Aided Applications (CAx) such as FEA deter collaboration because they allow only a single user to check out and make changes to the model at a given time. Though most of these software applications come with some collaborative tools, they are limited to simple tasks such as screen sharing and instant messaging. This thesis discusses methods to convert a current commercial FEA pre-processing program into a multi-user program, where multiple people are allowed to work on a single FEA model simultaneously. This thesis discusses a method for creating a multi-user FEA pre-processor and a robust, stable multi-user FEA program with full functionality has been developed using CUBIT. A generalized method for creating a networking architecture for a multi-user FEA pre-processor is discussed and the chosen client-server architecture is demonstrated. Furthermore, a method for decomposing a model/assembly using geometry identification tags is discussed. A working prototype which consists of workspace management Graphical User Interfaces (GUI) is demonstrated. A method for handling time-consuming tasks in an asynchronous multi-user environment is presented using Central Processing Unit (CPU) time as a time indicator. Due to architectural limitations of CUBIT, this is not demonstrated. Moreover, a method for handling undo sequences in a multi-user environment is discussed. Since commercial FEA pre-processors do not allow mesh related actions to be undone using an undo option, this undo handling method is not demonstrated.

Transit Oriented Development theoretical and practical framework represents an important tool for municipalities, private actors and citizens to enhance quality of life in urban contexts. Planning cities that encourage sustainable mobility patterns can contribute to aim at diversifying land use and making cities more accessible, safer and attractive for people. Handen has developed as a car-dependant area that is planned to growth its population and build more than 9000 new housing units by 2030 (Haninge Kommun, 2016). The TOD standard 3.0 was applied in the area around Handen pendeltåg station, to practically assess the TODness level of the area and provide recommendations to take into a consideration for future and current developments. Using the TOD standard in Handen can contribute to aim at a more sustainable growth pattern for both current and expected new citizens on the area. After implementing the evaluation system, it was found out that the best ranked variables were Compactness and Cycling. In contrast the variables that received the lowest scores were Walk, Densify, Connect, and Shift. Overall, Handen scored a Bronze level of TODness. Therefore, there are several actions that could be implemented on the study area in order to improve the TODness level. Specifically, Handen needs to diversify its land use, enhance the pedestrian network, encourage land mix use, decrease the space destined to cars and increase pedestrian connectivity, among others.