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Date Created
2016
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English
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Carleton University
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- Resource Type:
- Thesis
- Creator:
- Hundlani, Kalpana
- Abstract:
- Many studies reflect that today's younger generation spends a considerable amount of time online whether for doing their homework or playing games. However, the authentication schemes for this user group has received negligible attention. When exploring alternate authentication mechanisms for children, we decided to reduce the password burden and involve parents in the authentication decision. We chose to explore whether a parent-child password manager was a good choice for achieving this goal. We started with our 'Keep A Secret' prototype, a parent-managed password manager for children. On the next iteration, we designed 'KinderSurf', a parental consent mechanism based on the OpenID concept. We conducted two user studies for evaluating the prototypes. These user studies revealed areas for improvements, but overall both parents and children like the idea of using parental consent to log in.
- Thesis Degree:
- Master of Computer Science (M.C.S.)
- Thesis Degree Discipline:
- Computer Science
- Date Created:
- 2016
-
- Resource Type:
- Thesis
- Creator:
- Bingham, Michael John Kendal
- Abstract:
- Mobile devices store immense amounts of sensitive data, making them attractive targets for attackers. The first line of defence against attacks is authentication --- verifying the identity of an agent accessing the device. We examine behavioural biometrics as an effective authentication mechanism on mobile devices. Behavioural biometrics model an agent's behaviours to establish their identity. We construct an authentication system based on profiling the device sensors (touch screen, accelerometer and gyroscope) during a swipe, defined as a quick, simple movement across a touch screen. In addition, we explore the relationship between problem setting and evaluation methodology in authentication systems, producing a list of requirements necessary for accurate evaluation. Finally, we perform a user study to ascertain the effectiveness of our behavioural biometric mechanism. We conclude that this system is resistant to attacks which trivially bypass standard mechanisms such as PINs, while also potentially lightening the usability load imposed by authentication.
- Thesis Degree:
- Master of Computer Science (M.C.S.)
- Thesis Degree Discipline:
- Computer Science
- Date Created:
- 2016
-
- Resource Type:
- Thesis
- Creator:
- McConnell, Erin Marie
- Abstract:
- Derived by an iterative in vitro selection process termed Systematic Evolution of Ligands by EXponential enrichment (SELEX), aptamers are short single-stranded oligonucleotides that bind to their cognate targets with high affinity and selectivity. Generally, aptamers have been widely used in biological and pre-clinical medical applications. A comprehensive analysis of aptamer selection data maintained in the Aptamer Database identified factors that should be carefully considered upon the design of selection experiments to optimize success. These findings should be applied to selections for nervous system related targets to improve the quality of selected aptamers. Specifically, the nervous system presents an especially interesting field of investigation. For example the aptamer target thrombin is a protein involved in the coagulation cascade and has important relevancy for stroke. The development of an aptamer-based pH-driven DNA nanomachine (pHAST) for the specific catch-and-release of thrombin is described. This work is an important example of how existing aptamers could be incorporated into a nanodevice to add specific functionality for applications within the nervous system. Dopamine is a small molecule neurotransmitter implicated in mental illness and neurodegenerative disease. The ability of dopamine-binding aptamers to attenuate perseveration and locomotor behaviour associated with dopamine over-activity was shown in live rodents. Finally, an aptamer-gold nanoparticle based sensor was developed based on a dopamine binding aptamer, DopaA20min, identified from a novel selection.
- Thesis Degree:
- Doctor of Philosophy (Ph.D.)
- Thesis Degree Discipline:
- Chemistry
- Date Created:
- 2016
-
- Resource Type:
- Thesis
- Creator:
- Strickland, Noelle
- Abstract:
- Socially anxious students may be at risk for heavy drinking and alcohol-related problems (e.g., injuries), because they may endorse more maladaptive drinking motives, such as drinking to cope with their anxiety or to conform to peer-pressure (Hingson et al., 2005). This study assessed two conceptual models: 1) whether social anxiety predicts drinking motives, which in turn predict alcohol-outcomes (i.e., a mediation model), and 2) whether social anxiety exacerbates the effect of drinking motives on alcohol-outcomes (i.e., moderation model). Undergraduates (N = 387) completed an online survey, and of these n = 76 completed a follow-up brief survey study. Both surveys assessed social anxiety, drinking motives, and alcohol-outcomes. Results showed that coping and conformity motives explained the associations between social anxiety and alcohol-related problems, and coping motives explained the association between social anxiety and heavy drinking.Keywords:social anxiety; drinking motives; heavy drinking; alcohol-related problems; brief surveys; university students.
- Thesis Degree:
- Master of Arts (M.A.)
- Thesis Degree Discipline:
- Psychology
- Date Created:
- 2016
-
- Resource Type:
- Thesis
- Creator:
- Özbek, Esen Egemen
- Abstract:
- Turkey's long-standing denial of the annihilation of about one million Armenians, between 1915 and 1917, is well documented. Over the past five decades, however, the nation state has come under increasing pressure from a range of internal and external sites, not only to acknowledge these grave historical atrocities, but also to name them as 'genocide' (a term coined by Raphael Lemkin in 1944, on the basis of the annihilation of the Armenians and the Holocaust, which has become a cornerstone of international legal language surrounding crimes against humanity). I begin by rehearsing the official denialist state narratives which are in play immediately following the terrible events of 1915-17 and have continued almost unchallenged in the public sphere until the 1990's, when fuelled by tectonic shifts in Turkish politics and a serious crisis of national identity, critical- revisionist strands of history-writing began to challenge the Turkish official narrative. During the past two decades, there has been a proliferation of individual and collective initiatives advocating a coming to memory of the genocide at a wide range of sites: history-writing, the Law, Civic discourses, fiction, and public commemorations, among others. While I trace the longer trajectory of these counter-memories, the major aim of my dissertation is to provide a "thick description" of commemorative events which concentrates on the post-1980 period and documents and analyzes, for the first time, very recent commemorations of the Armenian genocide in Turkey. I suggest that challenges provoked by an ongoing commitment to the denialist ethos resulted in strategies such as a discourse of "shared pain" which unwittingly mute the transformative potential of these commemorations. In the end, they operate in an in- between space of transgression and containment that reminds us of the immense complexity of the coming to memory of national "difficult pasts".
- Thesis Degree:
- Doctor of Philosophy (Ph.D.)
- Thesis Degree Discipline:
- Cultural Mediations
- Date Created:
- 2016
-
- Resource Type:
- Thesis
- Creator:
- Jull, Margaret Anne
- Abstract:
- The animating question that guides this thesis is how can polarized interpersonal argument dissipate so that new possibilities can emerge? Through a multilayered autoethnographical research method, an account of emergent change is developed that integrates foundational concepts of intersubjectivity and conflict to contend that the dissipation of interpersonal argument can be made more probable by altering the intersubjective processes in which it emerges.The research’s autoethnographical framework focuses on the interiority of the researching self while investigating interpersonal argument through three aspects of intersubjectivity: activities of consciousness, interactions in spaces of encounter, and the dynamic interplay of contextual systems of meanings. Four autoethnographic case studies empirically illuminate how the discernment of threat can instigate the sometimes choiceless decisions to defend through conflict behaviors. These inquiries into interpersonal argument through the subjectivity of the researcher explore how diminishing the constrictive effect of threat, instigating reflexivity, changing spaces of encounter, and mobilizing other social meanings can contribute to a more probable emergence of change.
- Thesis Degree:
- Doctor of Philosophy (Ph.D.)
- Thesis Degree Discipline:
- Sociology
- Date Created:
- 2016
-
- Resource Type:
- Thesis
- Creator:
- Fraser, Cory
- Abstract:
- The amount of String data around the world is constantly growing. As more of it accumulates, methods to search through it, and at higher capacities needs to be continually improved. This thesis analyzes string searching solutions that: support dynamic updates, support prefix searching, and can perform well using external memory. These solutions are compared against each other using different types of string data while performing various operations. The strengths and weaknesses of each solution is then identified and discussed.
- Thesis Degree:
- Master of Computer Science (M.C.S.)
- Thesis Degree Discipline:
- Computer Science
- Date Created:
- 2016
-
- Resource Type:
- Thesis
- Creator:
- Bouchard, Laurie
- Abstract:
- Biomimetic architecture possesses tremendous potential for techno-ecological synergy, yet it currently lacks a strong philosophical foundation. Freya Mathews attributes synergy in nature to two fundamental principles of life: conativity and least resistance. In the pursuit of techno-ecological synergy, biomimetic designers need to embrace these concepts. This can only be accomplished through the rejection of the anthropocentric and technological dogmas of modernity in favor of bioinclusivity. While architects and researchers have begun to address this difficult task, an examination of architectural precedents reveals the investigative directions needed. The philosophical exploration undertaken in this thesis informs a biomimetic design strategy for the actualization of William Commanda’s vision for Victoria Island. The design of the Asinabka Indigenous Cultural Centre reinforces the synergistic potential of biomimicry through the integration of the Indigenous worldview. These concepts culminate in an arboreal structure embodying interconnectedness and in a roof garden promoting a renewed encounter with nature.
- Thesis Degree:
- Master of Architecture (M.Arch.)
- Thesis Degree Discipline:
- Architecture
- Date Created:
- 2016
-
- Resource Type:
- Thesis
- Creator:
- Wilkinson, Sabrina
- Abstract:
- This thesis examines the state of journalism in Canada with a focus on the quantity and quality of journalistic work. I find that journalism is not in crisis so much as a major and wrenching period of transformation. The Canadian press system is presently in a moment of change characterized by an array of different media players, shifting industry trends and a federal government inquiry. Amidst all the turmoil, data from Statistics Canada suggests there are more jobs in the field than there was prior to the emergence of the Internet. Further, my personal interviews reveal that newsworkers understand the role of the journalist as one that is being dramatically changed alongside the entire press system. However, to what end these changes point is not at all clear. Accordingly, the federal government and the CRTC play a crucial role in shaping the evolution of the Canadian journalistic environment.
- Thesis Degree:
- Master of Arts (M.A.)
- Thesis Degree Discipline:
- Communication
- Date Created:
- 2016
-
- Resource Type:
- Thesis
- Creator:
- Bilici, Kumru
- Abstract:
- The Armenian Genocide and its multigenerational effects have long been a topic of cinematic representation. Given the scarcity of archival images and the contested history of the events of 1915, filmmakers have historically been preoccupied with proving the genocide and recalling its trauma. Here, I draw attention to a group of recent documentaries by post-exilic Armenians depicting their emotionally difficult return journeys to Turkey against the background of continuing denial; and I propose that these independent and personal “homecoming” films help us better understand the Armenian filmmakers’ multigenerational diasporic rupture and relationship with their ancestral homeland. Through close examination of three of these documentaries, I argue that the post-exilic Armenian “homecoming” films are cautious yet promising cinematic memory work towards the working-through of the trauma of 1915 seeking the possibilities of restoring an unwelcoming space back into a homeland.
- Thesis Degree:
- Master of Arts (M.A.)
- Thesis Degree Discipline:
- Film Studies
- Date Created:
- 2016