identifier: Fearnley, Jack  (2001) Vanishing and non-vanishing of L-series of elliptic curves twisted by Dirichlet characters.  PhD thesis, Concordia University.

abstract: We study the behaviour of L -series of elliptic curves twisted by Dirichlet characters. In particular, we study the vanishing and non vanishing of these L -series at the critical point. We present empirical results indicating the vanishing behaviour of cyclic twists of orders 3, 5, 7 and conductors up to 5000 for elliptic curves of conductor less than 100. We prove results for vanishing in the case of cyclic cubic twists and non-vanishing in the case of cyclic twists of arbitrary prime order.  Let L ( E, s ) be the L -series of an elliptic curve E : y 2 = x 3 + Ax + B with A, B ✹ [Special characters omitted.] .  If there exists a cyclic cubic character { such that L ( E , 1, {) = 0 or if L ( E , 1) = 0 then the L -series vanishes for an infinite number of cyclic cubic characters.  With finite exceptions, if L ( E , 1) ✹ 0 there exist an infinite number of cyclic twists [Special characters omitted.] of prime order k such that L ( E , 1, [Special characters omitted.] ) ✹ 0 for every order k


identifier: Daneshfar, Alireza  (2001) Earnings persistence and profit sharing plan adoption.  PhD thesis, Concordia University.

type: Thesis NonPeerReviewed

abstract: This paper argues that prior studies investigating the determinants of profit sharing plan adoption fail to consider the effect of current earnings changes on future expected compensation payments under profit sharing that underlie the success of profit sharing in motivating employees. When current earnings changes are caused by factors that make earnings too volatile then the payments under profit sharing are volatile and their predictability is reduced. In this situation, profit sharing is not expected to be successful in motivating employees and would not be a preferred means of compensation. In contrast, if earnings changes are caused by factors that produce more sustainable effects on earnings, rendering them more reliable and predictable, then compensation payments under profit sharing will be more predictable and representative of employees' efforts. In this case, profit sharing would be more successful in motivating employees and is more likely to be adopted as a preferred compensation scheme. Accordingly, it is hypothesized that a positive association exists between the level of permanence of current earnings changes and the adoption of profit sharing plans.  Permanence of earnings changes is measured by the level of earnings persistence which is computed using two alternative time-series models: IMA (1,1) and ARIMA (2,1,0). A Logit model is used to evaluate the effect of earnings persistence and control variables on the probability of adoption of employee profit sharing plans. Profit sharing data is extracted from the U.S. IRS 5500 Form while financial data for the sample firms are retrieved from Compustat. The final sample includes 298 firms that are equally split between profit sharing and non-profit sharing firms.  The test results indicate that information about persistence of earnings innovations is a significant determinant of profit sharing plan adoption. Earnings persistence is positively associated with the probability of profit sharing plan adoption. This result is robust when the alternative measure of earnings persistence is used and the control variables are included. These results should lead to a richer model of employee profit sharing plan adoption and use.


identifier: Kang, Xiaodi  (2001) Optimal tank design and directional dynamic analysis of liquid cargo vehicles under steering and braking.  PhD thesis, Concordia University.

abstract: The stability and dynamic response characteristics of partially-filled tank vehicles are adversely influenced by the movement of the liquid cargo within the tank. The directional dynamics and stability characteristics of partially-filled tank vehicles are analyzed and enhanced through formulation of an optimal tank configuration, and analytical models for analyses of vehicle responses to steady and transient steering maneuvers, and combined steering and braking inputs. A generic tank cross-section is initially proposed based upon an analysis of the currently used tank configurations. Three different constrained multi-variable optimization functions are formulated and solved to derive optimal tank cross-sections corresponding to various liquid fill conditions. The performance potentials of the optimal tank configurations are initially evaluated in terms of the load transfer properties and static rollover threshold acceleration limit of a partly-filled tractor-semitrailer tank vehicle through development and analyses of a static roll plane model. The influence of tank geometry on the directional response and dynamic roll stability characteristics is further investigated through development and analyses of a constant-speed three-dimensional model of the tank vehicle. The static and dynamic roll response characteristics of the vehicle equipped with two optimal tanks are compared with those of the vehicle with conventional tanks, under various directional maneuvers and liquid fill conditions, to demonstrate the superior potential performance of the optimal tank designs.  A three-dimensional quasi-static model of the partially-filled generic tank is further developed to study instantaneous liquid load shift in both the roll and pitch planes under simultaneous applications of lateral and longitudinal accelerations. The tank model is integrated into a comprehensive variable-speed three-dimensional model of an articulated vehicle combination to investigate the impact of cargo shift on the dynamic response of partially-filled tank vehicles under braking-in-a-turn maneuvers. The dynamic characteristics of tank vehicles are compared with those of the equivalent rigid cargo vehicles to demonstrate the destabilizing effects of the liquid load shift. The dynamic responses of tank vehicles are further investigated in view of variations in vehicle maneuvers, fill volume, road condition, and tank cross-section. From the study, it is concluded that liquid cargo movement within a tank tends to reduce roll stability limits and yaw stability limits of the vehicle, when operating on a dry road and a wet/slippery road, respectively. The performance limits can be considerably enhanced through the use of the proposed optimal designs


identifier: Coker, Caesar Amandus Malcolm  (2001) The contribution of traditional schooling to the education of the artist in Sierra Leone.  PhD thesis, Concordia University.

abstract: This study focuses on the education and work of indigenous Sierra Leonean visual artists. It examines the traditional artistic training processes, the nature of the artists' work, the place of the artists in their communities and their contributions to our national development. In order to address these four issues, answers to the following questions were sought: In what ways have traditional educational processes contributed to the education of our artists in Sierra Leone? How important is the input of ethnic associations to the process of education? Is the quality of the education offered to trainees compatible with their roles in the community? How or why do some of these traditionally trained artists shift their production emphasis from ritual objects to tourist art?  This study also evaluates the development of different educational/training institutions within the context of Sierra Leone's colonial history. It also examines how the changes in the country's educational system have influenced the position and status of indigenous artists and their training processes.  The study is based largely on data collected through in-depth interviews conducted with twelve indigenous Sierra Leonean artists, (seven male and five female). Also, it relies on relevant literature on "traditional" African education, as well as secondary literature on education and the training of artists generally.  This study suggests that traditional artistic education makes an important contribution to national development. Traditional artistic education clearly contributes to a vibrant social life as well as about 2 Million US Dollars annually to the national economy. Likewise, traditional artistic education helps to shape popular culture and national identity.  Findings from this study suggest that the Sierra Leone government should support the development of indigenous artistic training processes, and that use be made of the artists and their work to elevate the national ethos of our country. Most importantly, this research suggests that youths be given the opportunity to participate in traditional art activities. Such involvement will be meaningful and useful to our youth, especially considering the interrelation of art and other subjects in the school curriculum.


identifier: Alfoldy, Sandra  (2001) An intricate Web(b): American influences on professional craft in Canada 1964-1974.  PhD thesis, Concordia University.

abstract: This thesis explores the impact of American craftspeople, organizers and ideologies on the development of professional craft in Canada during the period 1964 to 1974. Research which has identified this as a key decade in the development of infrastructures also reveals a strong reliance on American craft ideals during this period. In particular, the philanthropy of Aileen Osborn Webb and the American Craft Council is discussed as it provided Canadian administrators with models upon which they based specific aspects of their organizations. Although the American Craft Council and the World Crafts Council, formed in 1964, provided guidance for Canada, they were unable to assist in navigating the growing tensions between Francophone and Anglophone craftspeople, and the emerging self-identity of First Nations craftspeople. It is my hypothesis that rather than negotiating through these difficulties on the national level, Canadian organizers attempted to neutralize them by simply not engaging with the issues. This awkwardness resulted in the 1974 formation of a national craft organization, the Canadian Crafts Council, already undermined by growing dissention.  By undertaking studies of specific exhibitions and conferences during this period, I have highlighted the key personalities, ideologies, and organizations and their contributions to professional craft in Canada. Through this process three areas of debate emerge. First, the recurrence of American "experts" to validate Canadian craft, and the consistent admiration of Aileen Osborn Webb by all levels of administrators and craftspeople, indicates the omnipresence of American ideals that Canadian craftspeople both embraced and resisted. Second, the differing perceptions of the professional focus of Quebec craft organizations and the nationalistic emphasis on the preservation of craft techniques and traditions presented an insurmountable obstacle to the formation of a unified Canadian craft organization. Third, unlike the American Craft Council which operated independently from the federal Indian Arts and Crafts Board, the Canadian Guild of Crafts maintained contact, but had limited involvement with, First Nations craftspeople. Instead they continued in the caretaking role they had developed during the early part of the twentieth century as the Canadian Handicrafts Guild.


identifier: Westberg-Bracewell, Linda  (2001) ErrorBuster : a computer program designed to remediate persistent errors of Francophone speakers of English.  Masters thesis, Concordia University.

abstract: This work includes an examination of the efficacy of error correction in language teaching from historical, pedagogical and sociolinguistic perspectives. A particular error-correction technique, error replay , is discussed and tested in a longitudinal case study of an adult learner of English as a second language. Error replay is a technique in which learner errors from recorded samples of free discourse are presented in written form for learners to review and correct at a later time. Results from the case study show that there was a markedly positive effect of error replay on the elimination of persistent errors in the adult learner who participated in this study. This process of elimination of errors, as well as an eliminated error itself is referred to as ( an ) outtake in this thesis. Examples of outtakes in later recordings of the learner are traced from the beginning to the end of the study in order to explore the processes involved in eliminating errors from learner speech. Chronologically related learner reflections during the study are compared to learner progress in order to explore the relationship among error correction, noticing and learner behavior. There is evidence from this study to support the hypothesis that error correction is instrumental in prompting noticing which leads to behavioral changes. This work concludes with a description of a web-based tool based on the error replay technique. A working prototype of the tool, dubbed ErrorBuster , was developed as part of this thesis.


identifier: Brand, Kerstin  (2001) The use of Grimm's fairy tales to understand the moral content in fairy tales.  Masters thesis, Concordia University.

abstract: This study examined the child's understanding of the moral content found in fairy tales based on an afterschool fairy tale story hour presented on a weekly basis for nine weeks. The study included four components: the fairy tale storytelling activity; the dramatisation of the told fairy tale; the interview; and the artistic activity. The interview component helped assess the understanding of the moral content as presented in the six told fairy tales. The study also explored the value of fairy tales in the fives of the children that participated in this study by observing and examining their role and participation in the storytelling, dramatisation and artistic components of the study. Sixteen children from grades one, two, and three participated in the study. A historical overview of Grimm's fairy tales is presented as well as Bettelheim's psychoanalytic theory (1976). Descriptions of fairy tale readings used in schools included various projects spanning curricular domains. Moral development is presented using the cognitive development approach as well as the theories based on Gilligan's (1988) research and Eisenberg's theory of prosocial behaviour (1992). The findings demonstrated that the children in this study were able to identify the moral content found in fairy tales such as: vices and virtues, the intentions behind the deeds, and in certain cases reason about them using orientations of care, justice and empathy. The quality of participation in the dramatisations, artistic and storytelling components ascertained that the value of fairy tales endures in the lives of these children in the form of enjoyment and creative expression.


identifier: Derry, Catherine  (2001) Women's recollections of childhood peer rejection in school.  Masters thesis, Concordia University.

abstract: Most of the research literature on peer rejection either blames the victim or concentrates on finding patterns in the process of rejection. The perspectives of the children being rejected have been given surprisingly little attention, while the perspectives of adults thinking back on their experience has yet to be investigated. This study examines the memories of four women (one of who is myself) who were rejected as children in school, and is written from a phenomenological standpoint. In addition to conducting a self-study, the research involved interviewing participants about their memories of childhood experiences, and incorporated the use of memory prompts, such as photographs and drawings. Through analyzing and reflecting on the images, memory accounts, and interviews, I explore and describe what it can feel like to be excluded or bullied by others in school. The data analysis was conducted by looking for and testing common themes that describe the essential nature of each participant's experience. This was followed by the writing and rewriting of phenomenological descriptions of the experiences. The findings highlight both differences and commonalties in coping strategies used by the participants to deal with their situations, and provide an in-depth look at the traces that childhood experiences can leave on adult memory. In the concluding chapter, the participants themselves offer advice to parents and educators dealing with peer rejection.


identifier: Berryman, V. Marie  (2001) Attending to the ethical principles in Canadian universities.  Masters thesis, Concordia University.

abstract: The purpose of this thesis is to explore the present state of ethical standards in universities. Drawing on the work of five faculty members who, in 1966, co-authored a discussion paper titled, "Ethical Principles in University Teaching", this work will ascertain the extent to which codes of ethics are providing the intended direction, especially with regard to ethical behaviour among faculty and staff. This thesis begins with an historical review of how codes of ethics emerged. This is followed by a description of five codes of ethics chosen from Canadian universities. Closer examination of seven ethical principles is then undertaken.  Although it has been determined that codes of ethics provide the direction intended and are acting as guides to behaviour, there is still a dearth of empirical research on the continuing need for codes of ethics and on ways in which they might be more effective in reducing the incidents of unethical behaviour.


identifier: Martin, Nicola  (2001) The roots of black academic achievement : an argument for socially-constructed learning.  Masters thesis, Concordia University.

abstract: For centuries commentators have argued about the cause of scholastic under-achievement in North America. In particular, the high representation of minority groups in this category has been the source of heated debate. Some said that it was the fault of the home, others believed that the problem was genetic in nature. Whatever the explanation, thinkers focused predominately on the negative elements of minority education. This is where this study is different. My main concern is to identify black students who have been successful at school and to pinpoint why they have succeeded. To this end, I combine in-depth interviews with narrative. The end result is a preliminary, positive contribution that allows the participants to tell their own stories of success. It allows them to tell how they have persevered. Furthermore, this study encourages them to discuss their continual achievement in the face of stereotypes, nay Sayers and images that suggest otherwise.


identifier: Reney, Barbara  (2001) A study of the development and formative evaluation of the Miyupimaatisiiuwin curriculum.  Masters thesis, Concordia University.

abstract: A First Nations' view of health encompasses spiritual, interpersonal, physical and intellectual components. It is believed that for a person to be truly healthy, they must achieve balance and strength in all four aspects of their being--spirit, heart, body and mind.  This thesis discusses the processes involved in the development of lessons and the evaluation of the "Miyupimaatisiiuwin", Cree-specific, primary and secondary school health curriculum. This educational package provides teachers and students in Northern Québec Cree community schools with a range of educational activities that allow them to practice various ways to develop the skills necessary to make healthy life-style choices. An overview of the client and reasons for the creation of the curriculum are discussed. Although this curriculum was developed by a team, this thesis describes the contributions made by the author to the development and evaluation of this curriculum material.  The design and development of this curriculum was guided by research on First Nation learning styles, health issues and curriculum design, already existing First Nations' and mainstream health education materials, Cree and non-Cree health and education professionals, and various members of the nine Northern Québec Cree communities. Evaluations and an expert review were conducted. All the data obtained was examined and incorporated in revisions where appropriate. A list of recommendations for further development and implementation are included.


identifier: McGuire, Heather  (2001) The design, development and evaluation of a computer software workshop for volunteers.  Masters thesis, Concordia University.

abstract: Integrating computers into the classroom has been an important issue for educators for many years, however the process of integrating computers is lengthy and complex. Many phases exist to achieving the complete integration of technology into pedagogy, the first of which is acquirement of basic computer literacy skills by teachers and others who interact with students. In order to promote computer use in schools, volunteers who show an interest in acquiring skills in various software applications, or related equipment can be trained as an initial step towards the increased awareness and use of computers in the schools. In order to begin this process at an urban elementary school in Quebec, 6 parent volunteers were given a 3-hour Introduction to Hyperstudio workshop. The training materials were instructionally designed using Gagne's theory of instruction. The workshop was instructor-led, and the participants were provided with a participant manual to help guide the learning process. Upon completion of the workshop the learners completed a participant survey, as well, interviews were conducted with several of the participants.


identifier: Rowell, Carolyn  (2000) Scribe rule.  Masters thesis, Concordia University.

title: Scribe rule

abstract: This collection of short stories is set in, or near, the Eastern Townships of southern Quebec, and takes its name from an ancient technique of timber framing used by the early settlers of the region. The characters of the collection are connected by their experiences during the 1960s and 1970s in the small town of Galt. During this time of rapid social change, they struggle to understand themselves and others, and try to shape relationships while confronting the inescapable nature of the past. The effects of war, poverty, alcohol abuse, and intolerance on a community and its members, interweave with the hope offered by family, fellowship, courage, and love.


identifier: Sellar, Gord A  (2001) With my mouth.  Masters thesis, Concordia University.

title: With my mouth

abstract: This collection of short stories explores many possible forms and uses of the genre of science fiction, ranging from explorations of the impact of science upon philosophical and religious issues and vice versa, to speculations about possible future understandings of identity rooted in ethnicity, culture, and even species. These stories range in setting and mood from a bizarre but humorous alternate history (á la Dickens) to a Buddhist-inhabited far-future dystopia, and employ a wide range of techniques and strategies. While these stories tend to use traditional (realist) narrative techniques, they use them strategically to immerse readers in performative examinations of many issues which are often addressed through formal experimentation--sometimes from perspectives that address these issues more forcefully than a formal experiment might succeed in doing. While thereby seeking to literally "hack" (in both senses of the word) readerly assumptions, these stories also argue performatively for a much wider range of imaginative possibilities and suitable topics of direct examination for SF than is often utilized by its practitioners or even acknowledged possible by its readers, both those of the street and those of the academy.


identifier: Doubrovina, Irina  (2001) "The seventeenth-century crisis" and Soviet historiography : B.F. Porshnev and A.D. Lublinskaya.  Masters thesis, Concordia University.


identifier: Bisaillon, Richard  (2001) "Liberal democracy as a Kuhnian paradigm : applying a model confronted by irreconcilable accumulated anomaly as a normative prescription for the organisation of global society".  Masters thesis, Concordia University.

abstract: Thomas S. Kuhn has argued in "The Structure of Scientific Revolutions" that progress in the natural sciences is not cumulatively incremental, but occurs in leaps following extended developmental periods that are governed by certain theoretical world views that limit and define understanding within any specific discipline in the sciences. Kuhn argues that these "paradigms" impose a certain organisational order that permits scientists to go about the work of explaining the operations of physical reality. The paradigm will continue in place until such time as it can no longer solve the "puzzles" associated with that discipline. The present thesis of this work is that Kuhn's model can be extended to the social sciences in such a way as to admit liberal democracy to qualify as a paradigm in social and political theory. The argument maintains that the problems of economic and social inequality under liberal democracy are threatening its continued role as a paradigm at the same time, after the failure of socialism, that it is being considered the only acceptable model for the organisation of advanced societies. The argument demonstrates how most social and political theorists are bound within the presumptions of liberalism in seeking solutions to the problems confronting the model. An examination of the similarities and differences between social and scientific revolutions is conducted. The thesis concludes by arguing that only those theorists whose arguments originate outside of liberalism, specifically those socialist theorists who retain the concept of class conflict, can offer a potential new paradigm that can solve the problems that have plagued all previous models up to and including liberal democracy.


identifier: McKelvey, Myles  (2001) Translating the musical Les Misérables : a polysystemic approach.  Masters thesis, Concordia University.

abstract: The Polysystem theory can be defined as a general model for understanding, analyzing and describing the functioning and evolution of literary systems, of which translation is one part. Developed by Itamar Even-Zohar and Gideon Toury, the Polysystem's most important contribution to Translation Studies is that it has generated a methodology. This thesis uses the Polysystem theory as an heuristic tool to analyze and describe the translations of Les Misérables (the novel) and Les Miz (the musical). Chapter 1 offers an overview of the Polysystem theory. Chapter Two discusses the socio-historical and literary context of the novel Les Misérables , as well as its critical reception. Chapter 3 compares five excerpts from two English translations of the novel, one from the 19 th century, the other from the 20 th century. Chapter 4 is primarily concerned with the theoretical difficulties involved in translating lyrics. Chapter 5 analyzes four song translations from the musical Les Miz by applying one of the concepts outlined in Chapter 4: rhythmic constraints. Chapter 6 first offers a brief history of the musical, and then discusses the place of Les Miz within the "musical Polysystem." The second half of Chapter 6 reveals how and why Les Miz was adapted to its target audience. Finally, Chapter 7 addresses two important theoretical implications: (i) the notion of adaptation; and (ii) "universal" translation norms. The thesis concludes with a critique of Toury's theory, but also outlines the positive contributions he has made to Translation Studies.


identifier: Schmaltz, Grégory  (2001) Scanning-group-size effect in flocks of house sparrows : quantifying the contribution of competition and anti-predatory vigilance.  Masters thesis, Concordia University.

abstract: As social foraging groups increase in size, individual levels of scanning decrease while time spent feeding increases. Traditionally, anti-predatory considerations provide the preeminent explanation for this scanning-group-size effect, but contest and scramble competition could also account for the results. The anti-predatory hypothesis predicts that the reduced need of vigilance in groups allows subjects to decrease their scanning and consequently increase their feeding rate. Contest competition tends to decrease the group foraging benefits especially for subordinate individuals. However, the scramble competition hypothesis predicts that competition drives individuals to increase their feeding rate by decreasing their handling time per peck and, therefore, is consistent with an increased rate of feeding in the inter-scan intervals. I used this rationale to explore the contribution of each factor to the scanning-group-size effect of house sparrows ( Passer domesticus ) observed while they fed from an artificial seed patch during the winter. The inter-scan pecking rate of individuals, excluding scanning, increased with group size while handling time per peck decreased. Dominants pecked more quickly than subordinates at group sizes greater than 12, subordinates hopped more than dominants and spent more time handling each seed for group sizes greater than 18. These results suggest a contribution of contest and scramble competition to the scanning-group-size effect. Dominants appeared to be more sensitive to changes in group size than subordinates and both competitive and anti-predatory considerations might help to explain this result.


identifier: Moran, Ernesto E  (2001) Identification of tephras from the Eastern Mediterranean using solid state techniques.  Masters thesis, Concordia University.

abstract: Solid state techniques have been used to characterize volcanic deposits from two areas in Greece: the Philippi peat basin, and the Myrtöön basin. The characterization involved the use of X-ray powder diffraction (XRPD) to identify the minerals present in the materials, electron probe microanalysis (EPMA) to obtain the chemical composition of the glassy components, and scanning electron microscopy (SEM) to study the morphology of the glassy components. The materials from the Philippi peat basin were found to be part of three tephra layers that are widespread in the area of study.  The materials from the Myrtöön basin were composed of glass shards, vesicular pumice shards, and mineral fragments.  The morphology of the glassy fragments present in the tephras from the Myrtöön and Philippi basins indicates that the eruptions that gave rise to these volcanic deposits were plinian, and that the magmas involved in the eruptions were high-viscosity magmas.


identifier: Al-Khairy, Jawad  (2001) Factors that affect case tools usage by systems developers and analysts.  Masters thesis, Concordia University.

abstract: This research is aimed at identifying factors that affect CASE tools usage by system developers and analysts. The Technology Acceptance Model (TAM) developed by Davis (1989) is used as the main building block. Certain modifications are made to the original TAM resulting in a final model that investigates the effect of four main factors on CASE usage.  The data was collected electronically through a web site designed specifically for this purpose. The research respondents were Systems developers and analysts that have CASE technology available to them in their work place, but at the same time using it is on a voluntary basis. Path Analysis was used to test and explain the final model. The strength and direction of relationships between each factor and CASE usage as well as relationships among the factors themselves were also studied.  The research provides a general understanding of the factors that affect system professionals CASE usage, how these factors interact among each other, and their collective effect on the technology usage. The study also highlights certain recommendations for future research.


identifier: Ali, Basmah  (2001) Multistakeholder collaboration outcomes in environmental voluntary initiatives : the case of A.R.E.T. initiative.  Masters thesis, Concordia University.

abstract: The purpose of this study is to reveal the outcomes resulting from collaboration projects that entail dealing with a variety of stakeholders, sometimes with opposing points of view. The theory of Multistakeholder Collaboration Process (MCP) introduced by Turcotte, 1996, is used as a base here to study a Canadian environmental voluntary initiative called A.R.E.T. (Accelerated Reduction/Elimination of Toxics). Three main aspects of collaboration outcomes were explored in the A.R.E.T. collaboration table: Consensus, Learning, and Innovation. Interviews were conducted to measure A.R.E.T.'s participants'/stakeholders' perceptions pertaining to the outcomes of this collaboration table. The sample for this study was drawn from the population of A.R.E.T. participants, and 8 companies, industry associations, and governmental departments were selected to be interviewed. Albeit the difference in project setting and nature, Turcotte's (1996) previous assumptions and conclusions from her R3 research were supported again in this study: The consensus reached was general in nature, while there was non-consensus in the micro-categories. Learning took the form of gaining awareness of other stakeholders' problems and needs. Innovation consisted of marginal modifications and not radical changes. Further research is needed in more different settings to be able to generalize these findings.


identifier: Duguay-Arbesfeld, Jonathan  (2001) The effects of creations and redemptions in the index participation unit market : evidence of the downward sloping demand curve for equity.  Masters thesis, Concordia University.

abstract: A number of finance papers have shown that the downward sloping demand curve for equity exists. Many of these previous studies have come to their conclusion via one of two ways. The first method looks at new equity offerings by companies and their affect on stock returns due to increase in supply. The second looks at company inclusion into the S&P 500 Composite Index and its effect on company returns due to increase in demand from index mutual funds. In both cases there has been evidence of the downward sloping demand curve but skeptics still persist due to the inability of these techniques to eliminate company specific information. The use of creations and redemptions of IPUs in the verification of the downward sloping demand curve has the benefit of being free of company specific pressures since they are stand alone equity products.  Standard & Poor's Depository Receipts (SPDRs) are the IPU under study in this paper. Through the use of standard event studies we have found that with larger or infrequent creations and redemptions there exists support for the downward sloping demand curve exists. More specifically, with creations we observe negative abnormal returns and with redemptions we observe the reverse.  When new creations and redemptions in SPDR units take place, a demand and supply shift occurs in the market due to purchases and sales of S&P 500 portfolio baskets. We found strong evidence that redemptions of SPDRs affects the returns of the underlying stocks of the S&P 500. The negative significance would imply that redeeming parties are not liquidating the equity basket upon receipt. When we eliminate company specific information results persist in large redemptions


identifier: Gandell, Joy  (2001) Mergers and acquisitions : a unified human resources model.  Masters thesis, Concordia University.

abstract: The incidence of mergers and acquisitions (M&As) has proliferated throughout the world including all sectors of our society, both municipal and industrial, private and public. However, the majority (60-80%) of them do not reach their intended objectives due to the fact that the merging organizations do not realize the impact of neglecting the human resource factor. Although they properly assess and address the financial and legal issues, they continually overlook this important factor. The present literature suggests what organizations should do to reverse these negative effects and how to properly address the human resources issues. This research seeks to test this list of suggestions, in the form of a unified model, employing the single case study method. The case in question is the newly merged McGill University Health Center (MUHC) comprised of the Royal Victoria Hospital, the Montreal General Hospital, the Montreal Neurological Institute, and the Montreal Children's Hospital. Data from interviews and existing documents are used to support or modify the final model. The qualitative results supported the majority of the unified model, requiring a few modifications. This research has subsequently lead to the development of a unified human resources model for the proper and successful implementation of M&As. The implications of these findings for all organizations, and for M&A theory and practice, are discussed. Suggestions for future research are also provided.


identifier: Girlea, Adriana Mirela  (2001) Factors that affect the electronic distribution channel structure.  Masters thesis, Concordia University.

abstract: Today, in the conditions of Internet's expansion and extensive use of information technology, many companies reconsider the way they are doing business. When designing electronic distribution channels, managers have to decide to what extent should the distribution function be performed within the boundaries of their firms. This research identifies the factors that explain such channel structure, based on transaction cost economics theoretical framework. A survey was conducted among Canadian and US firms from the semiconductor and electronic components manufacturing industrial sector (NAICS 33441).  The results of the multiple regression analysis revealed that human asset specificity is marginally correlated with the dependent variable and that behavioral uncertainty is positively correlated with the degree of performing the transaction internally. In the case of other two variables (environmental uncertainty and environmental diversity), the regression coefficients had the hypothesized sign but the results were not statistically significant. Overall, the results indicate that transaction cost economics could be used to explain partially the electronic channel structure.


identifier: Jeddi, Mourad Mokhtar  (2001) Foreign exchange risk exposure of Canadian domestic, exporting and multinational firms : market and industry effects on bilateral and multilateral exchange rates.  Masters thesis, Concordia University.

abstract: The failure of most previous research to support the widely accepted hypothesis of an existing relationship between exchange rate movements and stock returns is primarily attributed to research design drawbacks. In the present study we address the research design problem from a relatively new perspective, suggesting changes to the market index variable and to the exchange rate variable.  We use monthly stock returns for the 1971-1999 period to estimate overall exchange rate exposure of Canadian domestic and exporting companies to trade weighted multilateral exchange rates and to the Canada-U.S. bilateral exchange rate. The results show no significant exposure of the domestic firms sample, suggesting indirect exposure may be limited. However significant exposure effects are found for the exporting sample. In general, these results do not suggest that there are any benefits from using the more (theoretically) appealing industry specific exchange rates and the purely domestic index in studying the exposure to the multilateral exchange rates. Yet benefits from using the purely domestic index do exist when studying the exposure to the Canada-U.S. bilateral exchange rate.  We also examine the determinants of currency exposure for a set of Canadian multinational corporations. To this end we decompose our companies' exposure into a foreign sales variable, a foreign production variable, and a market concentration variable. All coefficients have the expected signs, although only foreign sales and foreign production are found to be significant. These results are contingent on the exchange rate proxy used--specifically significance is found only when industry specific rates are employed. In light of this result we hypothesize the existence of an industry effect . This industry effect captures industry specific trade flows components (foreign sales and foreign production)


identifier: Naggiar, Julia  (2001) An exploration of retention practices in the IT industry.  Masters thesis, Concordia University.

abstract: Present day socioeconomic factors have exacerbated the need for superior organizational retention strategies. The knowledge-based economy, the shortage of skilled labour, and shifting work force demographics have made retention issues particularly significant in the IT industry. This exploratory study examined the application of a best practice retention model in IT organizations. The model consists of the six factors most cited in the literature to affect turnover, namely, orientation, training, career development, motivation, compensation, and feedback/evaluation. Three main aspects of retention were explored. First, the extent of application of the six best practices in IT organizations was examined. Second, the perspective of the HR manager was examined to gain insight into both the types of retention strategies being implemented, and the challenges inherent in implementing the best practices. Third, the perspective of the IT professional was examined to gain information regarding which retention strategies most affected commitment.  It was found that orientation, career development, non-financial compensation, and feedback confer competitive advantage to IT organizations in terms of retention, while training, intrinsic motivational strategies, and financial compensation are necessary practices to avoid dissatisfaction, but do not encourage retention. A contingency model is proposed, which takes into account the relevance of labour market conditions, demographic factors, and organizational size, structure, and culture to the design of retention strategies.


identifier: Qu, Jun  (2001) The communication network simulator for Concordia parallel programming environment.  Masters thesis, Concordia University.

abstract: Concordia Parallel Programming Environment (CPPE) is a visual environment that can simulate the execution of parallel programs. CPPE is composed of two parts, Concordia Parallel C Compiler (CPCC), which compiles a parallel program into machine code (vCode), and Concordia Parallel System Simulator (CPSS), which executes the vCode generated by CPCC. The communication network simulator, as an important module in CPSS, simulates the message passing procedure in CPPE.  This thesis focused on the design and implementation of CPSS communication network simulator using object-oriented methodology. The aim of the design is to provide an independent, encapsulated, and easy extensible communication network simulator. In the current release of the network module, four types of routing techniques are implemented. They are Shortest Path, Simulated Packet, Packet Switch and Wormhole Routing.


identifier: Kanthimathinathan, Venkatachalam  (2001) An enterprise policy specification tool.  Masters thesis, Concordia University.

title: An enterprise policy specification tool

abstract: As enterprises begin to increasingly conduct their businesses over multiple interconnected networks spanning many countries using large computer systems, there is a need to be able, to specify, represent and manipulate enterprise policies in these systems so as to be able to efficiently monitor and regulate enterprise processes and business transactions. A large enterprise typically comprises of hundreds of smaller units that to a large extent operate independently but within the overall goals of the enterprise. To reduce any bottlenecks or delays in everyday operations of enterprise units, it should be possible for various enterprise unit heads to create, delete or modify policies relevant to them with minimum reliance on a centralized policy administrator. However, when multiple users begin to manage enterprise policies, there is a need to identify "who can create policies on what resources" and "who should follow these policies". Also, when multiple units compete for common resources, policy conflicts may arise. It is important to detect and resolve conflicts between policies before accepting them for enforcement.  An Enterprise Policy Specification Tool (PST) is introduced in this thesis that provides a solution to the above problems. The tool is unique since it provides a model-driven policy specification language that incorporates constructs to denote the enterprise model in the specified policies. We have defined policy conflicts that can arise and provide a mechanism to detect and resolve them at the time of specification. Although our proposed model is domain independent, the implementation and testing have been carried out in the context of a Message Notification System. A Java-based partial implementation of our proposed architecture has demonstrated the feasibility of the model-based approach to policy specification


identifier: Edelstein, Jeffrey  (2001) Truckin' : the genetic algorithm way.  Masters thesis, Concordia University.

title: Truckin' : the genetic algorithm way

abstract: Over the past 25 years, a new form of optimization and search technique was refined using the same theories developed to explain human evolution, called the Genetic Algorithm. The algorithm is based on the premise that, when individuals exist in a competitive environment where resources are limited, only the fittest individuals will survive.  This thesis attempts to use genetic algorithms to solve a complex optimization problem, which involves a real world simulation where trucks compete to make a profit, by buying and selling commodities in a country filled with different types of dealers. The genetic algorithm is used to evolve the trucks over generations, by modifying the strategies that they use to control their behaviour, in an attempt to produce more profitable trucks.  The project was implemented using the C++ programming language. The purpose of the thesis and its implementation was to see if one could use object oriented techniques, such as inheritance and dynamic binding to achieve the genetic variation of the trucks.  The results of the project are moderately successful. This is likely due number of strategies available to the trucks. By increasing the numb algorithm may produce trucks of superior genetic structure.


identifier: Alsumait, Asmaa  (2000) A new scheme for prioritizing handoffs in cellular networks.  Masters thesis, Concordia University.

abstract: The process that allows a call in progress to continue as the mobile terminal moves between cells is called a handoff . In cellular networks, call admission algorithms play an important role in improving the performance of the network. In this thesis, we present a new call admission algorithm that improves the quality of service in cellular networks by prioritizing handoff call requests over new call requests. This prioritization is based on defining a controlled dropping ratio that attempts to prevent dropping a handoff call until a pre-specified target number of new calls are blocked. The purpose of blocking new calls is to adaptively reserve bandwidth for handoff calls. The aim of this algorithm is to improve the quality of service of cellular networks by minimizing the grade of service, the non-completed call probability, and the channel non-utilization.  The effectiveness of the new call admission algorithm in reducing the handoff dropping probability and the new call blocking probability was studied. (Abstract shortened by UMI.)


identifier: Pan, Jingchuan  (2001) Modeling and robust adaptive control of metal cutting via application of piezoactuator.  Masters thesis, Concordia University.

abstract: Self-excited vibration, so called chatter, is known to cause detrimental effects on the machined surface finish and to decrease the machining efficiency. Because of the small amplitude, high frequency properties of chatter, it requires active vibration control providing a force to the cutting system to overcome the chatter effect. To provide such a force, the piezoactuator has been introduced into the cutting system as an important controllable positioning device for ultra-precision machining. With the application of piezoactuator, a much more accurate model is required for achieving the ultra-precision control. In this thesis, rather than using the commonly accepted linear Merchant model, the relationship of cutting force and chip thickness variations is explored as a nonlinear hysteresis model. Furthermore, the piezoactuator itself also exhibits hysteretic behavior. Thereafter, the turning system investigated in this thesis is described as a class of uncertain systems with hysteresis and time delay. The novelty of this thesis is that the hysteresis model is for the first time incorporated into the chatter suppression design for metal cutting systems, but notoriously, it severely complicates the task of controller design and analysis. In this thesis, in order for ultra-precision machining, several robust adaptive control schemes are proposed in different circumstances with such complicated turning systems. The simulation results show significant reduction of chatter by the proposed adaptive controllers in all the circumstances.


identifier: Zobair, Md Hasan  (2001) Modeling and formal verification of a telecom system block using MDGs.  Masters thesis, Concordia University.

abstract: This thesis demonstrates the effectiveness of Multiway Decision Graphs (MDG) to carry out the formal verification of an industrial Telecom hardware which is commercialized by PMC-Sierra Inc. To handle the complexity of the design, we adopted a hierarchical proof methodology as well as a number of design, we followed a hierarchical approach for the equivalence checking of the TSB. We first verified that the RTL implementation of each module complies with the specification of its behavioral model. We also succeeded to verify the full RTL implementation of the TSB against its top level specification. Besides equivalence checking, we furthermore applied model checking to ascertain that both the specification and the implementation of the TSB satisfy some specific characteristics of the system. To measure the performance of the MDG verification, we also conducted the verification of the same TSB with Cadence FormalCheck. The experimental results show that in some cases, the MDG than that of the boolean modeling in FormalCheck.


identifier: Zhang, Yan  (2001) Carrier phase and frequency estimation for burst-mode communications.  Masters thesis, Concordia University.

abstract: It is necessary for coherent communication systems to apply synchronization of carrier phase and frequency for proper demodulation of data. These synchronizers play an even greater role when transmission is in burst mode. It is because that the receiver always asks for relock for separated burst, which transmits information from different users. Therefore, fast and efficient carrier synchronization schemes are highly needed. In the thesis, we studied various algorithms that are all fallen into the Maximum Likelihood estimation, and chose the proper ones that are suitable to burst-mode transmission. The chosen algorithms employ different recovery methods, from non-data-aided method to data-aided method, and from feedforward topology to feedback topology. The performances of the chosen algorithms are studied by both theoretical analysis and computer simulation. Their advantage and disadvantage are summarized and compared, such that the improved schemes are proposed to compensate their disadvantages, make use of their advantages, and obtain better performance.


identifier: Andrade, Carlos Alberto  (2001) CAD of rectangular-ridged waveguide bandpass filters.  Masters thesis, Concordia University.

abstract: This thesis examines the design of rectangular or ridged waveguide bandpass filters using a computer. It studies the analysis of rectangular and ridged waveguide discontinuities using Mode-Matching (MM) and explains how to obtain the Generalized Scattering Matrix (GSM) form the MM analysis. Then, the thesis shows how to combine all the scattering matrices of a microwave circuit to obtain its overall scattering parameters of the circuit. The combination of the MM and GSM method allows the accurate and fast modeling of microwave bandpass filters with rectangular or ridged waveguide cross-sections. A Computer-Aid-Design (CAD) tool is built for the rigorous analysis of an evanescent-mode waveguide filter using the MM-GSM method. A Graphic-User-Interface (GUI) is part of the CAD tool. The user can enter filter parameters and analyze the accurate response of the filter within seconds. The thesis shows a particular design example of an evanescent-mode waveguide filter using the CAD tool. The filter dimensions found using the CAD tool were used to fabricate the filter. The filter was measured and compared with the simulated results. Good agreement between the two results was obtained.


identifier: Zhang, Zhi Long  (2001) Temperature control strategies for radiant floor heating systems.  Masters thesis, Concordia University.

abstract: A dynamic model of a radiant floor heating (RFH) system useful for control analysis is developed. The overall model consists of a boiler, an embedded tube floor slab and building enclosure. The overall model was described by nonlinear differential equations, which were solved using finite numerical methods.  The predicted responses from the model were compared with published experimental data. The comparisons were made covering a wide range of weather and operating conditions under several different control strategies. The model predictions compare well with the experimental data. The effective thermal capacity of the floor slab was found being an important parameter in calibrating the model results with the experimental data.  Three different control strategies for improving the temperature regulation in RFH systems are proposed. These are: a multistage on-off control, an augmented constant gain control (ACGC) and a variable gain control (VGC).  Simulation results show that the multistage control maintains zone air temperature close to the setpoint better than the existing on-off control scheme does. Likewise, ACGC gives good zone temperature control compared to the classical proportional control. A model based approach for updating the controller gains of the VGC is proposed. Both ACGC and VGC are shown to be robust to changes in weather conditions and internal heat gains. The advantage of the control strategies proposed in this thesis is that they eliminate the use of outdoor temperature sensor required in some existing control schemes. Being simple and robust, the multistage control scheme with two stages and the ACGC are good candidate controls for RFH systems.


identifier: Vézina, Alexandre  (2001) Macroeconomic news, time-varying risk factors, and time-varying risk premia : the case of the US stock and bond markets.  Masters thesis, Concordia University.

abstract: The basic purpose of this paper is to investigate the sources of time-varying risk premia for both the U.S. stock and bond markets. In addition, we look at the sources of time-varying conditional variance and conditional covariance of these two markets. Although a large literature has emerged on the return and volatility of any of the two markets, few studies propose a model in which both markets are modeled together. Moreover, after all the research done, the reasons explaining the causes of the volatility of any of the two markets remain unclear. What we propose in this paper is a model that considers both markets' volatility simultaneously. Our model captures the change in the risk premium, if any, to each market's own volatility risk as well as to the covariance risk for specific events. More specifically, we investigate if macroeconomic news is a source of time-varying volatility as well as time-varying covariance, and whether these results in time-varying risk premia in either of the markets. We find that stocks, as opposed to bonds, mainly exhibit a change in the risk premium on variance risk. The results suggest that most of the change is due to the PPI announcements. Our models also indicate that there is a change in the bond risk premium on covariance risk on macroeconomic news announcement dates. Finally, linear regressions show that employment reports and PPI releases are a source of time-varying conditional variance for stock, notes and bond returns.


identifier: Petosa, Sandra  (2001) The selection of raters in a multi-source feedback process.  Masters thesis, Concordia University.

abstract: In recent years, multi-source feedback (MSF) has emerged as a popular performance appraisal method. This method promises performance evaluation data that is less biased, more reliable, and more valid than the traditional supervisor-only appraisal method. However, given that it is common practice in a MSF process for ratees to select the raters of their performance, the method may actually be introducing new biases. Given this, the current study employed a web-based survey to assess the effects that an individual's level of organizational based self-esteem (OBSE) may have on rater selection. The hypothesis that individuals low in OBSE would be more likely that individuals high in OBSE to select raters that were perceived as being good friends was supported by some of the analyses. In addition, the hypothesis that individuals high in OBSE would be more likely than individuals low in OBSE to choose raters that were perceived as being highly acquainted with their work was also supported by some of the analyses.  The assumption behind these hypotheses is that choosing friends as raters will lead to positively enhanced and unrealistic assessments while choosing raters that are highly task acquainted will lead to accurate and thereby potentially negative assessments. While critical performance assessments may not be desired in the short-term, the long-term growth and developmental consequences are substantial. In addition, the possible effects that the rater source (peer/subordinate) and the purpose of the appraisal (administrative/developmental) may have on the process were also examined.


identifier: Li, Elaine  (2001) A multimedia mail system with real-time support.  Masters thesis, Concordia University.

abstract: As a multimedia mail is typically constructed over a period of time and has different mail readers, it is inevitable that its structure may change over time. In this thesis, we design a multimedia mail system with real-time scheduling support for authoring and presentation. We use the term authoring for the composition of a multimedia mail, and presentation for the reading of the mail. The major design objectives include flexible temporal and spatial specification, efficient algorithms to support incremental consistency check, presentation schedule generation, and effective editing/filter functions for both authors and readers.


identifier: Moen, Kristian  (2001) "About as shapeless as the Man in the Moon" : the representation of desire and transition in six films of Charles Laughton.  Masters thesis, Concordia University.

abstract: The performances of Charles Laughton in The Private Life of Henry VIII, Mutiny on the Bounty, Les Misérables, Rembrandt and The Hunchback of Notre Dame communicate a thematically and stylistically coherent vision of human identity. Through these performances, Laughton expresses the limits and possibilities of freedom for the self. Drawing on major works of Mikhail Bakhtin and Gilles Deleuze, as well as related theoretical explorations of the representation of identity in film and performance, Laughton is approached as an artist who explores the different ways in which film acting can articulate characters who remain outside psychological or narrative definition. The discussion is a close textual reading of Laughton's performances which focuses on the expressive means available to film actors, especially gesture, the use of dialogue and the use of the gaze. The one film which Laughton directed, The Night of the Hunter , is incorporated into the discussion and is taken as an example of the continuity of Laughton's complex and profound explorations of individual self awareness and identity.


identifier: Senécal, Nathalie H  (2001) The No.5 terminal grain elevator in the Port of Montreal : monument in a shifting landscape.  Masters thesis, Concordia University.

abstract: The No. 5 terminal elevator in the port of Montreal is the last of a group of colossal machines for moving and storing grain that once lined the waterfront in front of Old Montreal. The terminal elevators of the port of Montreal were the culmination-point of the national infrastructures of grain shipping that helped to make Montreal the most important grain-exporting port in the world during the 1920s and 1930s.  Built and expanded in stages between 1903 and 1958, elevator No. 5 was ultimately shut down in the winter of 1994. Since then, it has remained unused within the setting of the "Vieux Port"--the beautified and reclaimed harbour land relandscaped for leisure and tourism and opened in 1992 to coincide with Montreal's 350 th anniversary.  The public dialogue over what can or should be done with a derelict structure of this scale and nature has evolved into an exploration of the artistic and civic possibilities of an obsolete industrial structure. This thesis is a "critical biography" of this building. It traces its built and iconographic history, examines its role in the changing landscape of the port, and delves into the issues of perception, preservation and interpretation of elevator No. 5.


identifier: Zhang, Da Qing  (2001) Automatic code generation for real-time reactive systems in TROMLAB environment.  Masters thesis, Concordia University.

abstract: Real-time reactive systems are among the most difficult systems to design and implement because of their complex functional and timing requirements. TROMLAB is a rigorous framework founded on TROM formalism for developing real-time reactive systems. The framework provides a number of tools that make formalism transparent to the application developer. The work presented in this thesis adds a new component to TROMLAB. The thesis gives a methodology for the implementation of a real-time reactive system designed and validated in TROMLAB. The methodology consists of defining a real-time execution model in C++ that fits the TROM formalism, automatically translating TROM specifications into Larch/C++, an interface specification language, and finally mechanically generating C++ code that conforms to the interface specification. The code generation methodology is illustrated for the Train-Gate-Controller problem, a bench-mark case study in real-time systems community.


identifier: Li, Zheng  (2001) A fast way to locate the item regions of gray level images of cheques.  Masters thesis, Concordia University.

abstract: In the business transactions of large corporations such as utility companies and banks, many cheques are being processed on a regular basis. Automatic reading of bank cheques is an active topic in Document Analysis. A machine capable of reading bank cheques will have wide applications in banks and those companies where huge quantities of cheques have to be processed. To realize such a system, many image processing, pattern recognition and OCR techniques must be involved.  However, to develop an effective item extraction system is a difficult task, especially when the cheques contain complicated and colourful background pictures. In this thesis, a novel approach is proposed to locate the baselines of the cheque quickly and efficiently from a grey-scale cheque image. Based on that, we can extract the items such as the legal amount; courtesy amount and date respectively via a layout-driven extraction method.  We have developed a system that can extract cheque items effectively and automatically combining all the current methods. The result is quite encouraging and a reliability of 98% has been achieved when tested on IRIS database which contains 600 gray-level cheque images. The performance analysis also indicates that our program is less time-consuming than the existing extraction system


identifier: Lee, Qing Jiang  (2001) Pure Java implementation of a scalable Web server with a [sic] integrated servlet container.  Masters thesis, Concordia University.

abstract: As the Internet continues to grow, e-commerce has become a new way of doing business within almost every industry. Today, some popular Web sites are handling thousands--and even tens of thousands--of Web page requests per second. Web server technology is central to the current Internet client/server model, since the performance of the server directly affects the performance of the Web site using it.  In this thesis, I present a survey of contemporary commercial Web servers, describe the general concepts of Web server and Servlet container, then describe my own design and implementation of a purely Java-based scalable Web server that is integrated with a Servlet container. The purpose of this Web server implementation is to provide a commercially viable, purely Java-based scalable Web server that is fully HTTP 1.1-compliant and integrated with a Servlet container that is fully compliant with the Java Servlet Development Kit (JSDK) 2.1.  This Web server, the functionally equivalent to the Apache Web server, supports the latest HTTP protocol (version 1.1) and incorporates a built-in Servlet container that is the equivalent of a JServ or Tomcat Servlet container. The built-in Servlet container supports CGI scripts by using a CGI handler Servlet. The scalability of this Web server implementation considers two ways of scaling: Transparent and Redirect. In both cases, it acts as a master and can use any Web server or itself as a slave.


identifier: Jiang, Weilan  (2001) Fast adaptation of legacy code for server hosting.  Masters thesis, Concordia University.

abstract: With the advancement of broadband networking technologies, the Internet is starting to function as a comprehensive and global infrastructure for the delivery of data and computing services. The success of such service-based Internet computing depends heavily on whether we can design and implement reliable server hosted applications in large quantity.  In this thesis we study the problem of how to adapt existing legacy code for server hosting so that clients can get remote computing service through web browsers or thin-client applications. While such adaptation cannot take full advantage of the latest computing and networking technologies, it is critical for the industries to make a smooth and fast transition from the traditional in-house computing to Internet-based computing.  We study the motivation of such adaptation, and provide a comprehensive survey of current industry technologies that support such adaptation. We then use Concordia Parallel programming Environment (CPPE), a comprehensive C program, as an example of legacy code, and use CORBA technology to transform it into a server-hosted distributed component globally accessible on the Internet


identifier: Donyaee, Mohammad K  (2001) Towards an integrated model for specifying and measuring quality in use.  Masters thesis, Concordia University.

abstract: Although usability has received widespread attention within the software engineering community, there are few agreed software quality models that capture our current meaning of usability. The Human Computer Interaction community has also developed different models for specifying or measuring usability. However, PCI models are not well integrated within the software engineering models. Another problem with those models is the lack of tools that makes them hard to use and apply. These limitations are the main motivations for our Quality in Use Integrated Model (QUIM).  In this thesis, the similarities and differences of Various standards and models for defining usability, specifying, measuring or predicting quality in use are reviewed, and a comparison between the software engineering approaches and the HCI standards is committed. Then, we describe the rationale and foundations of QUIM, an integrated framework that aims to integrate these diverse models while supporting the main activities related to quality in use during the software lifecycle, including specification, testing, measurement and improvement


identifier: Wennan, Guo  (2000) An AC-AC inverter for high frequency power distribution system.  Masters thesis, Concordia University.

abstract: Future computer and telecommunication power distribution systems require the power source to be high frequency ac type and be combined with line current Power Factor Correction that satisfies IEC 1000-3-2 standard. In addition, low power applications require high efficiency, high power density and cost effectiveness. This thesis provides a solution to low power ac-ac inverter for the future computer and telecommunication power distribution systems, which complies with the above requirements.  The proposed high frequency ac-ac inverter operates under Zero Voltage Switching (ZVS) throughout the whole range of the line voltage and load. Hence, high efficiency can be realized under high switching frequency. A unified controller is introduced in the proposed ac-ac inverter to control the dc-ac stage and the PFC stage at the same time. The controller is simple and the DC bus voltage can be well limited for A line and load conditions. Hence, cost effectiveness can be realized.  In the thesis, two types of PFC stage converters (Boost and Buckboost) are presented to compare the performance of the ac-ac inverter. Principle of operation and steady state analysis of the proposed topology are given. Performance characteristics, design procedures and computer simulation results are presented to guide the design. Experimental results from a prototype of 100kHz, 30V ac /250W output, 90-265V ac input, are presented to confirm the analysis and performance of the proposed ac-ac inverter.


identifier: Hakimipour, Mansour  (2001) Development of a hybrid electrokinetic system for the simultaneous removal of heavy metals and PAHs from clayey soil.  Masters thesis, Concordia University.

abstract: Several industrial and municipal areas in North America are contaminated with heavy metals and petroleum products. This mixed contamination presents a particularly difficult task for remediation when dealing with clayey soil. The objective of this research was to develop a method to clean mixed contaminated clayey soils. A lab scale multifunctional hybrid electrokinetic method was investigated. Clayey soil, contaminated with lead (555 ppm), nickel (555 ppm) and phenanthrene (600 ppm), was subjected to simultaneous removal using an electrokinetic system. The electrokinetic surfactant supply system was applied to mobilize, transport and remove phenanthrene. A chelation agent (EDTA) was electrokinetically supplied to mobilize heavy metals. These supplied liquids were introduced in various sequences and at different periods in order to optimize the removal of both types of contaminants. The studies were performed on 8 lab scale electrokinetic cells connected to a DC power supply to achieve a voltage gradient of 0.3 V/cm. In order to avoid some negative impacts associated with electrokinetic processes, ion exchange textiles (IET) were incorporated into the system. Electrical parameters, pH, volume supplied and volume discharged were monitored continuously during each experiment. At the end of the tests, the soil and catholyte were subjected to physico-chemical analysis. Results showed that the optimal average simultaneous removal was 85% for lead, 84% for nickel, and 74% for phenanthrene. The highest local removals achieved for lead, nickel and phenanthrene were 96%, 95%, and 84% respectively. For the optimal removal conditions the consumption of energy was 28.4 kWh/m 3 . However, the hybrid method can achieve a two-fold decrease in energy consumption. The results of this study can be applied as an in-situ hybrid electrokinetic technology for the remediation of clayey sites contaminated with petroleum products and heavy metals, (e.g. Manufacture Gas Plant Sites).


identifier: Duffield, Andrew  (2001) Surfactant enhanced mobilisation of non-aqueous phase liquids.  Masters thesis, Concordia University.

abstract: The remediation of non-aqueous phase liquid (NAPL) using conventional aquifer treatment technologies is limited by the low solubility of NAPLs. Surfactants can promote the enhanced removal of NAPL through mobilisation, a mechanism that relies on the reduction of interfacial tension (IFT) at the flushing solution/NAPL interface. The conditions governing mobilisation can be represented by the total trapping number (N T ), a dimensionless quantity relating viscous and buoyancy forces to the capillary forces trapping the NAPL residual.  A highly reliable experimental apparatus and procedure were developed to study the effect of flow rate and surfactant concentration on the removal of a residual NAPL. Column studies were conducted to investigate the relative flushing efficiencies of very dilute Triton X-100 solutions delivered through Ottawa sand spiked with light white mineral oil. At the higher flow rate, the surfactant solutions yielded N T values greater than the critical N T , promoting greater NAPL recovery as IFT dropped. While NAPL removal at the lower flow rate should not be enhanced because the critical N T was not surpassed, variations in mineral oil recovery during flushing clearly indicate a surfactant effect. At the lower flow rate, the surfactant-induced enhancement and retardation of NAPI, removal both highlight the limitations of the N T approach. For more realistic systems where free product NAPL is present, the total trapping number approach requires further study to define its applicability as an indicator for NAPL mobilisation


identifier: Tzempelikos, Athanassios  (2001) A methodology for detailed calculation of illuminance levels and light dimming factors in a room with motorized blinds integrated in an advanced window.  Masters thesis, Concordia University.

abstract: Utilisation of daylight in buildings may result in significant savings in electricity consumption for lighting while creating a higher quality indoor environment. Additional energy savings are also realised during the cooling season, when reduction of internal heat gains due to electric lighting results in a corresponding reduction of cooling energy consumption.  This study presents a simulation of an office space with an advanced window with integrated motorized venetian blinds between the panes. The methodology developed consists of the following steps: (1) The transmittance characteristics of the window with the shading device are determined as a function of blind till angle, solar incidence angle and sky conditions. (2) The illuminance distribution on the work plane due to daylight is determined. (3) The electrical light level required to achieve the necessary total illuminance level on the work plane is computed and light dimming levels are established. (4) Energy savings from reduced utilisation of electric lights are estimated


identifier: Spencer, Scott  (2001) An experimental investigation of a solar chimney natural ventilation system.  Masters thesis, Concordia University.

abstract: Natural ventilation driven by a solar chimney attached to a single-room building was studied experimentally using a small-scale model. The experiments were performed using a recently developed fine-bubble technique in which fine hydrogen bubbles are produced electrolytically in salt solution to simulate the buoyancy effect in the chimney caused by temperature differences.  During the experiments, one sidewall of the solar chimney was uniformly "heated", corresponding to a uniformly distributed solar radiation incidence. Velocities at the room inlet were measured by a particle tracking method; in turn, the average flow rate through the solar chimney system was determined. Parameters studied in the experiments were the cavity width of the solar chimney, the solar radiation intensity, the ventilation inlet areas, and the solar chimney height.  Results showed that for a given building geometry and inlet areas, there is an optimum cavity width at which maximum ventilation flow rate can be achieved. This optimum cavity width, which is independent of the solar radiation intensity, was found to be dependent on the size of the ventilation inlet areas and the solar chimney height. Observations were made on the flow patterns within both the solar chimney and the room.  Two simple theoretical models were developed, based on common tools found in literature used for solar chimney ventilation prediction. Comparison between the measured ventilation flow rates and the theoretical predictions indicated that theoretical models, based on simplified temperature assumptions within the chimney, may over-predict the solar chimney ventilation performance and should be used with care.


identifier: Nguyen Thi, Lan Chi  (2001) Protocol for characterizing contaminant emissions during construction activities.  Masters thesis, Concordia University.

abstract: This thesis describes both the development of a sampling strategy and monitoring of seven typical construction/renovation activities for the types and concentrations of particulate, gaseous and microbiological contaminants that were produced. The activities were: prepared dry wall sanding, metal cutting, water-damaged drywall removal, ceiling tile removal, carpet removal/installation, painting, air duct caulking/sealing.  Sampling was performed near each activity, at some distance from the activity to estimate spreading potential, and in supply air to determine background concentrations. In addition, ventilation/exhaust rates were measured or estimated, and temperatures and relative humidities recorded.  In addition to samples, spot measurements were made with direct-reading equipment for particles in two size ranges and for total VOC, to provide more information on the spatial movement of contaminants, and on variations of concentration with time.  The highest particle counts in both size ranges were associated with metal welding. TVOC concentrations associated with VOC-free carpet adhesive, latex paint and water-based duct sealant were all low.  Very large quantities of mold spores were found in samples collected during removal of water-damaged drywall. High concentrations were also measured for three microbial VOCs that are typically associated with active mold growth. Sampling also produced evidence for release of mold spores during removal of old carpet and old ceiling tiles. For most activities, concentrations of emitted contaminants decreased with distance from the activity.


identifier: Williams, Roxanne  (2001) Short and long term performance of Canadian TSE-listed acquirers.  Masters thesis, Concordia University.

abstract: Using 771 acquisitions during 1988-1998, this study empirically tests short- and long-term security price performance of Canadian TSE-listed acquirers. The cumulative abnormal return (CAR) and the buy-and-hold abnormal return (BHAR) methods were use for the short- and the long-term studies respectively. In the short-run study, using the dummy variable method, we test three event windows: (-4; 0), (-1, 0) and (0; 4) with an estimation period of 180 days. Non-significant abnormal returns were found in all cases. For the long-run analysis, different approaches for developing a benchmark portfolio are presented. We compare and empirically test two control firms approaches in the spirit of Barber and Lyon (1997) and Longhran and Vigh (1997) over a one year pre-announcement period and three year post-announcement period. The results are not robust to alternative estimation procedures.


identifier: Milova, Nina  (2001) Exploring strategic role of IT from the perspective of Ansoff's and Porter's generic strategies.  Masters thesis, Concordia University.

abstract: The current study represents an exploratory research in the area of strategic alignment of information systems. It examines the concept of strategic alignment from the perspective of Porter's generic strategies and Ansoff's strategic grid. Porter's generic strategies were found to exist in the form of principal components, while Ansoff's quadrants exist in the form of strategic groups. The results indicate that fit between technology and strategy use can be identified in the form of mediation, with differentiation strategy being a mediating variable between IS factors and business performance and in terms of gestalts, that represent a special form of fit between industry type, strategy, technology use and business performance.  Further confirmatory research in this area is in order to validate these exploratory findings.


identifier: Elias, Demetra  (2001) Characterization of ESl47, a salt stress regulated protein kinase from Lophopyrum elongatum.  Masters thesis, Concordia University.

abstract: The ESI47 serine/threonine protein kinase from Lophopyrum elongatum was investigated to elucidate its potential role in salt tolerance and salt stress response. The yeast two-hybrid system was used to screen a cDNA Arabidopsis library and identify proteins that interact with the ESI47 kinase. Six partial DNA sequences encoding a 33 kDa oxygen-evolving enhancer precursor protein (OEE1) from the photosystem II oxygen-evolving complex were identified which showed an interaction with the ESI47 kinase. Sequence analysis showed that the partial length OEE1 clones were missing the first 81 or 82 amino acids at the amino-terminus of the protein. This region serves as a transit peptide that is required for import of precursor proteins into the chloroplast and is later cleaved. The full length OEE1 clones from Triticum aestivum and Arabidopsis were subcloned into the yeast two-hybrid library vector to determine whether the ESI47 kinase could interact with the OEE1 from either of these species. An interaction between the ESI47 kinase and the full length OEE1 precursor was not observed, which suggests that the kinase interacts with the mature OEE1 protein in the chloroplast. Northern analysis was used to compare the expression of ESI 47 homologues, in different species of wheat grasses, which have differing degrees of salt tolerance. ESI47 expression was not observed with northerns prepared with total RNA nor with poly-(A) + RNA samples, and a correlation between the ESI 47 expression and salt tolerance was therefore not established in this work.


identifier: Barokass-Emanuel, Noga  (2001) Ethics in translation : an exploration through art, dramatization, literary and political texts.  Masters thesis, Concordia University.

abstract: In Foucauldian theory, any interpretation is an act of violence, since no text is ever stable and fixed in its meaning. Underlying my thesis is the idea that all translation is interpretation . As such, an ethics of translation can only be found in and measured by the amount of violence, which a translation enacts upon its Source Text. Translation Theorists such as Antoine Berman and Lawrence Venuti have produced useful terms by which to define the kinds of textual violence involved in the translative process: "potentiation", "mythical transformation", domestication and "resistancy". I have applied these terms as parameters in attempting to isolate and analyze the translative process in areas other than textual, namely in Visual Arts and Television dramatizations. In these areas, the violent element in the translation from one medium into another is readily perceptible, as compared with linguistic translation, where violence can take place without the reader's awareness of it. From that point onward, the thesis looks at prominent texts from history and literature, which in translation misinterpreted their sources, and their consequences. One such case is the story of Shylock, initially a translated character, who gained mythical notoriety through dissemination in translation in many cultures. Other examples involve other historical, mainly anti-Semitic icons whose integration into public consciousness owed its success to their politically-motivated mis translation of authoritative texts. In my conclusion to the question of ethics in translation, I put the onus on the translator by equating him/her with what is generally understood to be Chomsky's moral intellectual. My ethical translator will be responsive to the need of the source text to remain inviolable through translation. That would compel the translator to excavate the source text until fully acquainted with it, thus making sure that its translation would be as close to its authentic essence as possible.


identifier: Lustgarten, Danielle  (2001) Race and space : mapping the construction of political identity.  Masters thesis, Concordia University.

abstract: Identity construction is subject to pre-existing meaning systems and values attached to these meaning systems. Race, like class and gender is imbued with meaning which has been given to it through historical circumstance and event, global and local relations, and national policy and ideology. The impact of these forces gives meaning to the discourses which contribute to identity construction. These discourses, in recent critical analysis, have borrowed metaphors of geography, space in particular, in order to gain insight into the particularities of identity construction, how this identity is politicized and the tools necessary to subvert the essential categories of these politicized identities. This study argues that space, as a metaphorical tool, is indispensible in understanding the way in which political identity is constructed, particularly in relation to race and the way in which race is politicized.


identifier: Belfer, Mitchell A  (2001) An abacus of behavior : a theory of third party intervention.  Masters thesis, Concordia University.

abstract: A study of third party intervention is in fact a study of state behavior. A study of state behavior is meant to examine the roles and influences of this type of international actor. This thesis is centered on a very precise type of state, the third party intervener. It examines the postures and perceptions of these states when they are confronted with a regionally or internationally based dyadic conflict. It supposes that these postures are the result of an interaction effect between the certainty, vulnerability and opportunity variables and utilizes contemporary case studies as empirical evidence of this interaction. It discusses state behavior by investigating the rationale behind alliance formations, conflict contagion and neutrality.


identifier: Weinstein, Melissa  (2001) Some geographies.  Masters thesis, Concordia University.

title: Some geographies

abstract: some geographies is a book of poetry divided into three sections: "Fifteen False Propositions Against Spicer"; "A Geography"; and "Equation". While each of the sections works from a different premise--grappling with precursors, locating the page and the imagination, and trying to make sense of language that appears to be nonsensical--the three parts work together in order to form a whole that is primarily obsessed with place. This obsession ranges from the concrete fictional and fictionalized locations produced by the act of writing, to the and disrupt one another. The book itself serves as an inquiry into these different ways of looking at place and ultimately seeks to pose, rather than to answer, questions.


identifier: Starnino, Carmine  (2000) What do you call this?  Masters thesis, Concordia University.

title: What do you call this?

abstract: Many of the poems in this collection deal with issues of immigration, exile and cultural loss. The emphasis, however, is not placed on ethnicity in any strict sense, but rather on taking the, by now, familiar premise of the immigrant subject and giving it back to the reader, as the Irish poet Seamus Heaney writes, "with a clean new music in it". The Italian-Canadian identity of the poems--or its Italianita --is enacted either through autobiographical narrative or by mediating on certain relevant cultural and societal artifacts. The collection ends with a long poem devoted to reclaiming and celebrating old, forgotten English words.


identifier: Cholmsky, Paul  (2001) Using modular architectures within distributed learning environments : a means for improving the efficiency of instructional design & development processes.  Masters thesis, Concordia University.

abstract: In addition to reducing costs associated with system development, modular architectures provide large-scale distributed learning environments with the flexibility required to meet the diverse needs of a global audience. Comprehensive standards for implementing such architectures are now being developed by several organizations. In order to take full advantage of these standards, instructional content design and development processes may need to be modified.  The first part of the thesis investigates the foundations of computer-based learning environments, and the historical development of instructional design methodologies in this domain. Specific emphasis is placed on the human factors involved in formalizing a design process, and how the concept of systematicity in design may evolve in the context of complex learning systems. Modular architectures are presented as a technique for ameliorating the complexity of design in this domain.  The second part of the thesis examines and critiques a recently-proposed standardized data model for distributed assessment systems. The concept of a distributed computer-based assessment system is first briefly defined. This is followed by an identification of the drivers underlying the need for a standardized data model, and a discussion of what constitutes a suitable methodology for evaluating such a standard in advance of its field implementation. After outlining the structural and functional aspects of the candidate standard, the IMS Question & Test Interoperability Information Model (Smythe & Shephed, 2000), the merits and failings of the standard are discussed, and a set of recommendations for the evolution of the standard is made.


identifier: Melenca, Marie A  (2001) Teaching connected speech rules to Japanese speakers of English so as to avoid a staccato speech rhythm.  Masters thesis, Concordia University.

abstract: This study explores the effectiveness of teaching Japanese speakers of English how to connect speech so as to avoid a robotic speech rhythm. A control and an experimental group were each given three one-hour classes in English. The control group read poetry aloud without any explicit instructions. The experimental group were instructed in how to link words with three different sound boundaries: (1) consonant to vowel, (2) vowel to vowel, and, (3) consonant to consonant. The ability to link word pairs was rated for both the control and experimental groups in pre- and post-treatment situations, and this was compared to a native-speaker baseline of connected word pairs.  This research focussed on whether instruction in connected speech rules would assist in reducing the syncopated rhythm which often characterises the speech of Japanese speakers of English. Although this study was an exploratory one, with a very small sample size, the results were heartening: directly teaching these rules seemed to heighten the awareness of the need to link word pairs. However, the results indicate several problem areas on which researchers and teachers need to focus in order to optimise time spent in pronunciation training. That is, a longer period of instruction with practice may enable a more successful output. Furthermore, it would be necessary to control experimental variables more carefully and use a larger sample size in order to obtain more definitive support for the claim that teaching connected speech rules would, indeed, generally improve the speech rhythm of Japanese learners of English.


identifier: Wang, Yun  (2001) Real-time system design using preemption thresholds.  PhD thesis, Concordia University.

abstract: As the real-time embedded systems encountered in applications such as telecommunications, aerospace, defense, and automatic control demand large, complex and multi-tasked software development, a new challenge has emerged for adopting the state-of-the-art software engineering technologies. Object-oriented design provides a scalable methodology with appropriate CASE tools for the design of software systems. Although these tools provides support for visual object-oriented modeling, design, simulation and code generation for general real-time systems, timing analysis is only available after the software is constructed. Consequently, the design-development process involving these tools in real-time systems becomes iterative and time-consuming.  Introducing timing analysis in the design stage encounters a new problem. Traditional scheduling theory assumes a single level of task granularity. However, in industrial practice, common wisdom requires several design level tasks map into one run-time thread to reduce scheduling costs. This warrants a dual-level scheduling: preemptive scheduling between threads and non-preemptive scheduling between tasks in the same thread. Extending the scheduling theory to such an environment forms the scope of this thesis.  Preemption threshold is introduced to control undesirable preemptions. Via a novel application of this concept, this thesis proposes a general scheduling model that subsumes both preemptive and non-preemptive scheduling models as special cases. The new theory deals with both independent and dependent tasks derivable from an object-oriented system model. Motivated by UML-RT modeling, the dependencies in our model include inter-task communication, resource sharing, and precedence. Important design issues covered include task priority and preemption threshold assignment and optimized task to thread mapping with respect of minimum scheduling cost and memory requirement. Quantitative performance evaluation is also conducted via simulation to validate the theory proposed


identifier: Tudoroiu, Nicolae  (2001) Application of multivariable and intelligent control strategies for improving plasma characteristics in reactive ion etching.  PhD thesis, Concordia University.

abstract: Reactive Ion Etching (RIE) is a critical technology for modern VLSI circuit fabrication and is used at many stages of the manufacturing process. Several real-time control strategies such as Proportional-Integral ( PI ) self-tuning, Linear Quadratic Gaussian ( LQG ), stochastic adaptive control, Deurocontrol, robust and hierarchical control based on both linear and nonlinear models of the Plasma Generation Subsystem (PGS) are developed to improve plasma characteristics in the Reactive Ion Etching process. The proposed approaches result in superior accuracy and performance when compared to results that are available in the literature. The identification process (prediction error approach) to determine linear Auto Regressive Moving Average ( ARMA ) models of the PGS is based on the computationally efficient recursive least squared ( RLS ) procedure. This is an alternative to the use of Kalman filter that is based on state estimation. The massively parallel processing, nonlinear mapping, and self-learning abilities of neural networks are exploited in the development of intelligent control systems. Neurocontrollers enhance RIE manufacturability and may be used for process optimization, control, and diagnosis. A hierarchical real-time control strategy is developed that automatically selects during each specific operating interval the best real-time control strategy for tracking the dc self bias voltage and fluorine concentration set points. It is shown that the proposed methodology results in higher performance and is computationally more efficient than that using a single control strategy that is dependent on a range of operating conditions.


identifier: Liu, Hao  (2001) Scattering from periodic array of parallel strips.  PhD thesis, Concordia University.

abstract: The field distribution between strips in a periodic array of parallel strips was modeled. The electric field integral equation (EFIE) together with method of moments was employed to solve the problem. The incident plane wave was assumed to be transverse magnetic (TM) and transverse electric (TE). The effect of the incident angle on the field between strips was investigated. For comparison, an array of the same configuration but containing a finite number of parallel strips was also modeled using the EFIE and solved via the method of moments. Good agreement between the results from the periodic array and the finite array was found even when the number of strips is small. It is also found that the presence of the ground plane does not have much effect on the field distribution, but only raises the field strength level when the observer is located below the top of the parallel strips. The results are of interest for cellular mobile radio community in predicting the range dependence of a signal from a base station antenna, when propagating in built up residential area.