Background: Despite their potential as low-threshold, low-cost and high-flexibility treatments of depression, behavioural activation and physical exercise have not yet been directly compared. This study will examine the effects of these interventions, administered via the Internet. The added effect of providing a treatment rationale will also be studied, as well as a relapse prevention program featuring cognitive behavioural therapy components. Methods/Design: This randomised controlled trial will include 500 participants meeting the diagnostic criteria for major depression, recruited in multiple cycles and randomised to either a waiting list control group with delayed treatment, or one of the four treatment groups: (1) physical exercise without a clear treatment rationale; (2) physical exercise with treatment rationale; (3) behavioural activation with treatment rationale; or (4) behavioural activation without a clear treatment rationale. Post treatment, half of the participants will be offered a relapse prevention program. Primary outcome measure will be the Patient Health Questionnaire 9-item. Secondary measures include diagnostic criteria for depression, as well as self-reported anxiety, physical activity and quality of life. Measurements done via telephone and the Internet -will be collected pre-treatment, weekly during treatment period, immediately post treatment and then monthly during a 24-month follow-up period. Discussion: The results of this study will constitute an important contribution to the body of knowledge of the respective interventions. Limitations are discussed.

The purpose of the architecture of software systems in business organizations is to support those organizations in achieving business goals. In software development organizations the design of an architecture is a collective effort that involves various organizational stakeholders and designers, who identify, interpret, and reason about intents, and communicate, delegate, commit to, and implement intents and decisions. Current architectural design descriptions are by-and-large based on block-and-arrow notations representing "coarse-grained" solution elements of the system. They lack explicit representation for modeling and analyzing the decision-making of stakeholders and architectural designers who hold different organizational responsibilities, and pursue conflicting and/or synergistic business or system goals, while collectively pursuing organizational objectives. This thesis considers the proposition that a distributed intentionality perspective is applicable in the design of software system architectures. During architectural design, relationships between intentional actors define the context in which intentional actors pursue business and system goals and in which they negotiate architectural decision-making. The objective of this research is to investigate what an Intentional Architecture Language (IAL) could be like that utilizes intentional and organizational modeling and analysis concepts to support architectural decision-making efforts in organizational settings. Drawing from prior work on organizational modeling and analysis, this thesis first defines a core IAL, and then explores its use to model and analyze architectural decision-making both reported in the literature and empirically observed at a number of commercial projects in industry. Drawing from these explorations, this thesis proposes a number of extensions to the core IAL, discusses lessons learned, and points to the advantages and limitations in using an IAL to model and analyze architectural decision-making in an organizational setting.

The purpose of the architecture of software systems in business organizations is to support those organizations in achieving business goals. In software development organizations the design of an architecture is a collective effort that involves various organizational stakeholders and designers, who identify, interpret, and reason about intents, and communicate, delegate, commit to, and implement intents and decisions. Current architectural design descriptions are by-and-large based on block-and-arrow notations representing "coarse-grained" solution elements of the system. They lack explicit representation for modeling and analyzing the decision-making of stakeholders and architectural designers who hold different organizational responsibilities, and pursue conflicting and/or synergistic business or system goals, while collectively pursuing organizational objectives. This thesis considers the proposition that a distributed intentionality perspective is applicable in the design of software system architectures. During architectural design, relationships between intentional actors define the context in which intentional actors pursue business and system goals and in which they negotiate architectural decision-making. The objective of this research is to investigate what an Intentional Architecture Language (IAL) could be like that utilizes intentional and organizational modeling and analysis concepts to support architectural decision-making efforts in organizational settings. Drawing from prior work on organizational modeling and analysis, this thesis first defines a core IAL, and then explores its use to model and analyze architectural decision-making both reported in the literature and empirically observed at a number of commercial projects in industry. Drawing from these explorations, this thesis proposes a number of extensions to the core IAL, discusses lessons learned, and points to the advantages and limitations in using an IAL to model and analyze architectural decision-making in an organizational setting.

Abstract There have been few studies on brand extensions in a Pakistan context. In this thesis, we study brand extensions in Pakistan from viewpoint of Brand Managers as their analysis coupled with their personal preferences can provide interesting insights for forming a successful brand extension strategy. Since T. Gamble first published an article about brand extensions (1967) there has been a growing interest for the topic. With the passage of time the inbuilt benefits of brand extensions in terms of cost and higher success rates were captured by companies in developing countries like Pakistan. In this thesis, we make theoretical arguments for, and show empirically that growth may not be the ultimate objective for companies in Pakistan. Instead, companies are compelled to follow the bandwagon so as to match competitors. It has been indicated that small firms might be in a better position to take advantage of below-the-line promotions in comparison to larger firms. Cannibalization of sales due to brand extensions was described to be non-existent in Pakistan until a company embarks on e-commerce initiative. Successful brand extensions, as defined by the brand managers are measured in terms of independent sales and market share captured by a brand stretch. Based on how the brand managers in this study perceived brand extensions, it could be a feasible marketing strategy in Pakistan. Purpose The purpose of this thesis is to explore the use of brand extension strategies in the Pakistan context. We will try to achieve this purpose by answering the following questions. 1)      Why do companies in general and specially in Pakistan use brand extension?                                                                   2)      Do the general pros and cons of brand extension hold the same applicability in Pakistan? 3)      How brand managers in Pakistan describe a successful brand extension? Method A qualitative method was incorporated in order to achieve our exploratory purpose of the study. In total, we performed five interviews. Three extensive telephone interviews were carried out with brand managers representing three seasoned companies from the domain of healthcare (Z-Jans), retailing (Chen One) and dairy foods industries (Haleeb) for finding out brand managers viewpoint on brand extensions in Pakistan. These interviews were conducted via telephone and recorded for our thesis purposes. In addition, one of the authors visited Pakistan and conducted two face-to-face interviews with Lakson Group of Industries (media, fast food and consumer goods) and Servis Group which is operating in (Shoes, Pharmacies, Tires & Tube) businesses. Conclusion It is suggested that the concept of brand manager is in the rudimentary stages of development in Pakistan. One reason for this is that domestic companies are carrying out brand extensions under the heading of marketing managers compared with Multinationals (MNEs) whose brand extensions strategies are mostly prepared at their headquarters. It has also been indicated that small companies could benefit the most from brand extension in terms of attaining greater consumer trials, increased market share, and growth by competing in international markets as they can easily use a mixture of Below-the-line and Above-the-line promotions for their extensions. A good distribution channel coupled with a strong brand portfolio can facilitate success for brand extension as the companies can then negotiate with dealers and retailers from a position of strength. Due to the huge population in Pakistan companies might neglect the fact that their brand extensions can fail. Since, the population is very large it might be hard for small and medium sized companies to cover the whole country and to find out in reality if their brand extension was a success on a country wide basis.  It has also been concluded that majority of the consumers are photo-literate with no or very little formal education therefore they find difficult to assess brand extensions and to make educated brand buying decision in light of quality standards. The market as a whole is price sensitive (low prices) so brand extensions with good price and value for customer are more likely to perform well over Pakistan market.

<p>Abstract</p><p>There have been few studies on brand extensions in a Pakistan context. In this thesis, we study brand extensions in Pakistan from viewpoint of Brand Managers as their analysis coupled with their personal preferences can provide interesting insights for forming a successful brand extension strategy. Since T. Gamble first published an article about brand extensions (1967) there has been a growing interest for the topic. With the passage of time the inbuilt benefits of brand extensions in terms of cost and higher success rates were captured by companies in developing countries like Pakistan. In this thesis, we make theoretical arguments for, and show empirically that growth may not be the ultimate objective for companies in Pakistan. Instead, companies are compelled to follow the bandwagon so as to match competitors. It has been indicated that small firms might be in a better position to take advantage of below-the-line promotions in comparison to larger firms. Cannibalization of sales due to brand extensions was described to be non-existent in Pakistan until a company embarks on e-commerce initiative. Successful brand extensions, as defined by the brand managers are measured in terms of independent sales and market share captured by a brand stretch. Based on how the brand managers in this study perceived brand extensions, it could be a feasible marketing strategy in Pakistan.</p><p><strong>Purpose</strong></p><p>The purpose of this thesis is to explore the use of brand extension strategies in the Pakistan context. We will try to achieve this purpose by answering the following questions.</p><p>1)      Why do companies in general and specially in Pakistan use brand extension?                                                                   <strong></strong></p><p>2)      Do the general pros and cons of brand extension hold the same applicability in Pakistan?</p><p>3)      How brand managers in Pakistan describe a successful brand extension?<strong></strong></p><p><strong>Method</strong></p><p>A qualitative method was incorporated in order to achieve our exploratory purpose of the study. In total, we performed five interviews. Three extensive telephone interviews were carried out with brand managers representing three seasoned companies from the domain of healthcare (Z-Jans), retailing (Chen One) and dairy foods industries (Haleeb) for finding out brand managers viewpoint on brand extensions in Pakistan. These interviews were conducted via telephone and recorded for our thesis purposes. In addition, one of the authors visited Pakistan and conducted two face-to-face interviews with Lakson Group of Industries <em>(media, fast food and consumer goods)</em><em> </em>and Servis Group which is operating in <em>(Shoes, Pharmacies, Tires & Tube) </em>businesses<strong>.</strong></p><p><strong>Conclusion</strong></p><p>It is suggested that the concept of brand manager is in the rudimentary stages of development in Pakistan. One reason for this is that domestic companies are carrying out brand extensions under the heading of marketing managers compared with Multinationals (MNEs) whose brand extensions strategies are mostly prepared at their headquarters. It has also been indicated that small companies could benefit the most from brand extension in terms of attaining greater consumer trials, increased market share, and growth by competing in international markets as they can easily use a mixture of Below-the-line and Above-the-line promotions for their extensions. A good distribution channel coupled with a strong brand portfolio can facilitate success for brand extension as the companies can then negotiate with dealers and retailers from a position of strength. Due to the huge population in Pakistan companies might neglect the fact that their brand extensions can fail. Since, the population is very large it might be hard for small and medium sized companies to cover the whole country and to find out in reality if their brand extension was a success on a country wide basis.  It has also been concluded that majority of the consumers are photo-literate with no or very little formal education therefore they find difficult to assess brand extensions and to make educated brand buying decision in light of quality standards. The market as a whole is price sensitive (low prices) so brand extensions with good price and value for customer are more likely to perform well over Pakistan market.</p>

In this thesis we have studied several aspects of the minimal realization problem for descriptor systems. These aspects include purely theoretical questions such as that about the order of a minimal realization of a general improper rational matrix and problems of a numerical nature, like rounding error analysis of the computing a minimal realization from a nonminimal one. We have also treated the minimal partial realization problem for general descriptor systems with application to model reduction and to generalised eigenvalue problems.

Zugl.: Darmstadt, Techn. Univ., Diss., 2009

E-health is an emerging field in the intersection of information systems, healthcare and business management, referring mainly to healthcare services delivered and enhanced through the use of information and communication technologies (ICT). In a broader sense, the term characterizes not only a technical development, but also a wider way of thinking, an attitude, and a commitment for a network to improve and connect provider, patients and governments. Such a network will be used to educate and inform healthcare professionals, managers and healthcare users; to stimulate innovation in care delivery and health system management; and to improve the healthcare system locally, regionally, and globally. The evaluation of e-health services in both theory and practice has proved to be important and complex. E-health evaluation will help achieve better user services utilization, justify the enormous investments of governments on delivering e-health services, and address the aspects that are hampering healthcare services from embracing the full potential of ICT towards successful e-health initiatives. The complexity of evaluation is mostly due to the challenges faced at the intersection of three areas, each well-known for its complexity; healthcare services, information systems, and evaluation methodologies. However, despite the importance of the evaluation of e-health services, literature shows that e-health evaluation is still in its infancy in terms of development and management. The aim of this research study is to develop, and assess a cross disciplinary evaluation framework for e-health services and to propose evaluation criteria for better user’s utilization and satisfaction of e-health services. The evaluation framework is criteria based, while the criteria are determined by an evaluation matrix of three elements, the evaluation rationales, the evaluation timeframes, and the evaluation stakeholders. The evaluation criteria have to be multi-dimensional as well as grounded in, or derived from, one or more specific perspectives or theories. The framework is designed to deal effectively with the challenges of e-health evaluation and overcome the limitation of existing evaluation frameworks. The cross disciplinary evaluation framework has been examined and validated by adopting an interpretive case study methodology. The chosen case study is NHS direct which is currently one of the largest e-health services in the world. The data collection process has been carried out by using three research methods; archival records, documentation analysis and semi-structured interviews. The use of multiple methods is essential to generate comparable data patterns and structures, and enhance the reliability of conclusions through data triangulation. The contribution of the research study is in bridging the gap between the theory and practice in the evaluation of e-health services by providing an efficient evaluation framework that can be applied to a wide range of e-health application and able to answer real-world concerns. The study also offers three sets of well-argued and balanced hierarchies of evaluation criteria that influence user’s utilization and satisfaction of e-health services. The evaluation criteria can be used to help achieve better user services utilization, to serve as part of e-health evaluation framework, and to address areas that require further attention in the development of future e-health initiatives.

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This study engaged fourth and fifth graders in solving a set of proportional tasks with focused discussion and concept development by the teacher. In order to understand the students’ ability to generalize the concept, they were asked to write problems that reflected the underlying concepts in the tasks and lessons. A qualitative analysis of the student generated problems show that the majority of the students were able to generalize the concepts. The analysis allowed for a discussion of problems solving approaches and a rich description of how students applied multiplicative reasoning in composing mathematics problems. These results are couched in a discussion of how the students solved the proportional reasoning tasks.