BACKGROUND: A growing body of research has suggested that exposure to traffic-related emissions is associated with numerous adverse health effects including prevalence and severity of symptoms of asthma, hospitalizations for acute myocardial infarctions, and cardiovascular-related mortality. No previous studies have assessed the association between proximity to traffic and respiratory and cardiovascular outcomes across all age groups. OBJECTIVE: The purpose of this study was to assess the association between proximity to traffic emissions within the City of Atlanta and respiratory and cardiovascular 911 Emergency Management Service (EMS) calls and subsequent emergency department (ED) visits. METHODS: Case and control diagnostic groups were established for 5,450 EMS calls received between 2004 and 2008 from residents of the City of Atlanta based on ICD-9 codes assigned within the ED. Case diagnostic groups included asthma, cardiovascular outcomes, and stroke. Gastrointestinal diagnostic groups were selected as controls. Cumulative traffic within a 100 m buffer of the call origination location was used as an indicator of exposure to traffic emissions. Using a case-control study design, the associations between exposure to traffic emissions and the case diagnostic groups were evaluated using logistic regression, controlling for potential confounding factors including age, gender, ethnicity, and socio-economic status (SES). Subgroup analyses were performed to evaluate differences by select age categories, gender, and SES. P-values of <0.05 and 95% confidence intervals (CI) were used to determine statistical significance. RESULTS: Increased cumulative traffic near the call location was associated with an increase in the odds of an EMS call and ED visit for cardiovascular outcomes compared to the control diagnostic group even after adjustment for confounding factors (OR = 1.07; 95% CI ,1.01-1.12). The strongest effects were among men and individuals aged 40-75 years. Increased cumulative traffic was also associated with an increased odds of an EMS call and ED visit for stroke among individuals aged 18-39 years after adjusting for confounding (OR = 1.16; 95% CI, 1.01-1.34). No statistically significant associations were found between increased cumulative traffic and the odds of an EMS call and ED visit for asthma. CONCLUSION: These results provide additional evidence that proximity to traffic is associated with adverse cardiovascular outcomes and stroke in certain age groups.

Toru Takemitsu (1930--96) composed several musical works which adopt as their titles quotations from James Joyce' s final and most revolutionary novel, Finnegans Wake. In this thesis I focus on one of these compositions, Far Calls. Coming, Far! (1981) for solo violin and orchestra. I explain the ways in which Takemitsu and Joyce possess similar philosophies and aesthetics, and examine their mutual interest in the phenomena of dreams. The Wake explores one night of a family's unconscious sleep activity and is heavily influenced by Freud's The Interpretation of Dreams. I argue that Takemitsu composes Far Calls. Coming, Far! as a "dreamwork" modelled after Joyce's similar literary endeavour. Accordingly, I categorize the analogous dream structures between Takemitsu's music and Joyce's text. These are: The Dreamer, Language, Time and Water, which I discuss in turn.

Navigating the physical world may present only a small fraction of the challenges faced by social animals. Sociality brings with it numerous benefits, including access to important information that may have otherwise been harder to come by. However, almost every aspect of these apparent benefits may also entail additional cognitive challenges, including how to interpret signals from conspecifics, who to attend to, and how to incorporate knowledge about signallers when deciding how to respond. One approach to understanding the cognitive abilities associated with social function is to investigate social species that take part in potentially costly group behaviours, where individual decisions must be made in a social context. In this thesis I explore how jackdaws (Corvus monedula), a highly sociable corvid species, use acoustic information to coordinate collective anti-predator responses. In Chapter Two I showed using playback experiments that the magnitude of collective responses to anti-predator recruitment calls known as “scolding” calls depends on the identity of the caller, with larger responses to familiar colony members than unfamiliar individuals. In Chapter Three I then used habituation-dishabituation experiments to show that this vocal discrimination operates at the level of the individual, with jackdaws discriminating between the calls of different conspecifics, regardless of their level of familiarity. In Chapter Four, I examined whether aspects of call structure conveyed information about threat levels. Here, I found that high rates of scolding calls were associated with elevated threats, and playback experiments suggested that this information might result in larger group responses. The finding that jackdaws are capable of mediating their response to alarm calls based on the identity of the individual caller, and on structural variation in call production, raised the question of whether jackdaws employed similar forms discrimination between acoustic cues made by predators in their environment. I investigated this in Chapter Five, using playback experiments to show that jackdaws responded not only to the vocalisations of resident predators, but that this ability extended to novel predators, and that responsiveness was mediated by the phase of the breeding season in which predators were heard. Together, these findings provide insights in to how discrimination among acoustic cues can mediate group behaviour in species that respond collectively to threats.

abstract: Extreme hot-weather events have become life-threatening natural phenomena in many cities around the world, and the health impacts of excessive heat are expected to increase with climate change (Huang et al. 2011; Knowlton et al. 2007; Meehl and Tebaldi 2004; Patz 2005). Heat waves will likely have the worst health impacts in urban areas, where large numbers of vulnerable people reside and where local-scale urban heat island effects (UHI) retard and reduce nighttime cooling. This dissertation presents three empirical case studies that were conducted to advance our understanding of human vulnerability to heat in coupled human-natural systems. Using vulnerability theory as a framework, I analyzed how various social and environmental components of a system interact to exacerbate or mitigate heat impacts on human health, with the goal of contributing to the conceptualization of human vulnerability to heat. The studies: 1) compared the relationship between temperature and health outcomes in Chicago and Phoenix; 2) compared a map derived from a theoretical generic index of vulnerability to heat with a map derived from actual heat-related hospitalizations in Phoenix; and 3) used geospatial information on health data at two areal units to identify the hot spots for two heat health outcomes in Phoenix. The results show a 10-degree Celsius difference in the threshold temperatures at which heat-stress calls in Phoenix and Chicago are likely to increase drastically, and that Chicago is likely to be more sensitive to climate change than Phoenix. I also found that heat-vulnerability indices are sensitive to scale, measurement, and context, and that cities will need to incorporate place-based factors to increase the usefulness of vulnerability indices and mapping to decision making. Finally, I found that identification of geographical hot-spot of heat-related illness depends on the type of data used, scale of measurement, and normalization procedures. I recommend using multiple datasets and different approaches to spatial analysis to overcome this limitation and help decision makers develop effective intervention strategies. / Dissertation/Thesis / Ph.D. Sustainability 2013

With the amount of email spam received these days it is hard to imagine that spammers act individually. Nowadays, most of the spam emails have been sent from a collection of compromised machines controlled by some spammers. These compromised computers are often called bots, using which the spammers can send massive volume of spam within a short period of time. The motivation of this work is to understand and analyze the behavior of spammers through a large collection of spam mails. My research examined a the data set collected over a 2.5-year period and developed an algorithm which would give the botnet features and then classify them into various groups. Principal component analysis was used to study the association patterns of group of spammers and the individual behavior of a spammer in a given domain. This is based on the features which capture maximum variance of information we have clustered. Presence information is a growing tool towards more efficient communication and providing new services and features within a business setting and much more. The main contribution in my thesis is to propose the willingness estimator that can estimate the callee's willingness without his/her involvement, the model estimates willingness level based on call history. Finally, the accuracy of the proposed willingness estimator is validated with the actual call logs.

This work describes different methods of fault injection, the principles of system calls in operating system Linux and the Systemtap tool. The main aim of thesis is design and implementation of the application that work on the principle of fault injection into the system calls using Systemtap tool. Implemented application automatically identifies the existing system calls with the error return values, which are then replaced the original system calls return value.

LIPANSKÁ, B. 2011: Effect of alarm calls on tit's behavior on feeder. MSc Thesis. Faculty of Science, Charles University in Prague. Alarm calls of the Great tit (Parus major) used in the context of ground-predators or perching-raptors consist of high-frequency tonal syllables and of series of churring syllables with broad-frequency range. The function of some acoustical parametres of these complex calls was tested in playback experiment on feeder. As the most effective appeared to be alarm calling of two birds simultaneously. More important for warning function of the calls were broad-frequency range syllables. The length of series of these syllables had an opposite impact than in some north-American chickadees (genus Poecile). The Blue tit (Cyanistes caeruleus) responds to Great tit's alarm calls, but its reactions are weaker. This difference can be caused by its lower competition ability against the Great tit. Key words: antipredation behavior, alarm calls, tits, playback experiment

This research explored the experiences of immigrant-descendant and immigrant faculty members as they approach the work they are invited to contribute to reconciliation by the Truth and Reconciliation Commission’s Calls to Action (2015b) through their roles as post-secondary educators. The purpose of this research was to better understand the experiences of immigrant-descendant and immigrant faculty to inform how they can be supported in reconciliation work, particularly as they contemplate engagement in the consciousness-raising, ally work, and institutional changes that are required as we walk in a new way with Indigenous Peoples. On the journey towards reconciliation that Truth and Reconciliation Commission Chair Justice Murray Sinclair (Ojibway) envisions (Macleans, 2015), this research further considers why and how we might come together as Indigenous Peoples, immigrant-descendants and immigrants, stopping at fires of action along the way that collectively encompass the circle surrounding reconciliation (Newman, 2018). Two central concepts interweave throughout the commitment to creating ethical spaces of engagement (Ermine, 2007) and the practice of research as ceremony (Wilson, 2008, S. Wilson, personal communication, February 2, 2020). Given the dearth of literature available at the time of writing that directly related to this research, a range of philosophical and theoretical scholarship and works of practitioners provided the foundation. These sources shared a focus on social transformation and included formative works by Dewey (1939), Freire (1970/2000, 1973), Habermas (1994, 2002) and Bronfenbrenner (1979), highlighting Habermas’ communicative action theory and Bronfenbrenner’s ecosystem of human development. Additional works by practitioners such as Bishop (2015), DiAngelo (2011), Gehl (n.d), hooks (1990), Luft and Ingram (1955), Sennet (2015), Sensoy and DiAngelo (2017) Snowden and Boon (2007), and Wheatley and Frieze (2011) provided further insight into creating ethical spaces for engagement. Rooted in my emerging understanding of my ontological stance as a relativist and a tendency towards the epistemological perspective of constructivism, aligning with the interpretive paradigm, the research took an anti-oppressive research approach (Potts & Brown, 2015) informed by the Indigenist research paradigm (Wilson, 2007, 2008). Following exploration of narrative inquiry in the dominant culture and as practiced by Indigenous scholars, a narrative approach was undertaken to gathering data. Individual conversations were held with 15 participants, all faculty members at Royal Roads University, a small public post-secondary institution in what is now called Victoria, British Columbia, Canada. A group conversation with eight of the participants followed the individual conversations. Nine themes emerged from the meaning making process that followed these conversations: locating self, clarifying purpose, institutional challenges, relationships with Indigenous Peoples, relationships with Indigenous Knowledges, curriculum, teaching, self-reflections, and what might help. A framework based on the intersection of self-assessed competence and confidence in a given context was developed to provide an empirical heuristic (St. Clair, 2005) to provide insight into the experience of faculty members at Royal Roads, faculty members at other institutions, and perhaps for ally work in different contexts. Throughout the study, I recorded my autoethnographic observations. These observations revealed cultural epiphanies that provided insight into my “deeper level thoughts, interests and assumptions” (Ermine, 2007) and supported ongoing critical reflection of the work as it unfolded. This dissertation concludes with reflections of the work overall, identifying some of the research limitations, suggesting recommendations for future action and research and reflecting on the tremendous impact that this has had, and will continue to have, on me personally and professionally. / Graduate

Introduction: Home visits have become increasingly uncommon although evidence suggests they improve healthcare quality and reduce overall expenditures. This thesis identifies the number and proportion of physician delivering home visits at patient’s end of life and describes characteristics of primary care physicians delivering end-of-life home visits and explores associations with delivery. Method: A retrospective cohort design using population-level health administrative data housed at ICES. Results: A total of 9,884 physicians were identified, of which 2,568 (25.7%) delivered at least one end-of-life home visit. Variables associated with increased odds of home visit delivery were older age, international training, capitation models of remuneration, and population size. Conclusions: This research demonstrates primary care physician’s characteristics and home visit practice patterns. This study aims to improve end-of-life primary care at a system and provider level by identifying factors associated with increased service provision. Increasing physician home services could greatly improve the dying experience of Canadians.

AbstractCaldemo, Marie (2019). Meetings between teachers and children. The interaction between teachers and children during a day at preschool. Master thesis, Institution of School development and Leadership, Faculty of Education and Society, Malmö University.PurposeThis study investigates what happens in the meetings between teachers and children and how different circumstances affect the meetings between them.MethodThe analysis is based on sound recordings, captured from three teachers’ meetings during three days in three different preschools in a larger Swedish town. The recording were captured using a dictation machine. To augment the material, the teachers also supplied their daily schedules. The analysis of the recordings follows a hermeneutic method, where the whole can be understood from the parts and the parts can be understood from the whole. The study contains a categorization of different kinds of meetings based on the material. My purpose was to discuss the meeting from different perspectives; such as, identity forming, gender consolidating, teaching and directing. The concept “meeting” represents the processes that preschool teachers and other teachers participate in with children. I intended to study what actually happens in the interaction in these meetings.TheoryI study the interaction between teacher and child, using existing theories about meetings to describe what actually happens. Juul and Jensen (2003) argue that the best way to meet the objectives in a preschool in a constructive manner is to base all activities on care and relations. This includes realizing that children learn in different ways; e.g., through observation, conversation and reflection (Öhman 2016). How children actually observe, converse and reflect is affected by how it is received by the teachers they meet. Children need to be listened to, and they need support to express themselves and reflect in together with others. Adults’ interaction with children is the basis for the childrens’ ability to express themselves, converse and think independently. Säljö (2013) view humans as reflecting beings, who socialize to become part of a cultural context. People interact with each other as well as social environments and institutions, and as a result they understand how to behave in that particular environment. The human being becomes both and individual and a member of society, learns established behavior in order to coexist in different contexts. ResultsThe analysis shows that the most influential meetings are those where children are given directives. At the other end of the spectrum were meetings where teachers and children conversed about some topic over longer periods of time. Other research (Rantala 2016) shows that teachers often guide children directly or indirectly through questions. These situations can be characterized as teacher monologues. Guidance through long sentences is at times difficult for children to interpret and comprehend. Many meetings resulted from questions about how to accomplish something, affirming meetings and direct meetings caused by children’s questions. Questions which aimed for making contact or get an answer were common. The conclusion is that the teachers work towards bringing order and structure through directives and questions which aim to gain control. It is primarily routine situations that create those types of meetings. In a study about children’s participation in preschools, Johannesen and Sandvik (2009) concluded that adults control and regulate children’s movement and focus. In their description, adults are in the way of children but they have difficulties putting their finger on what is really going on. They believe their work warrants reflection. The recorded meetings show that the teachers want to be there for the children, work towards better contact and create relations. One of the teachers was less restricted by other activities, and had more freedom to develop relations with the children under a longer period of time. The conclusion is that this opened the opportunity for other types of meetings.