<p>Several physical mechanisms concerning the impact of Rossby waves on ozone distribution and circulation in the stratosphere and troposphere are studied in the thesis.</p><p>Summertime total ozone variability over Middle Asia and Northern Scandinavia shows similar wave-like behaviour with typical periods of 10-20 days and amplitudes of 20-50 Dobson units. These variations are caused by eastward travelling Rossby waves in the lower stratosphere. The same mechanism plays the primary role in the formation of an intense low ozone episode over Scandinavia in August 2003. A strong anticyclone was formed in the troposphere over Europe as a part of a Rossby wave train. The anticyclone coincides with a displaced Artic pool of low-ozone air in the stratosphere aloft of the anticyclone. A combination of the two above-mentioned processes results in the total ozone minimum over Northern Europe for summer 2003.</p><p>Interannual variability of the atmospheric circulation and total ozone during winter is strongly controlled by the diabatic (Brewer-Dobson) circulation which is driven by upward propagating waves from the troposphere. In the Northern Hemisphere midlatitudes, wintertime total ozone shows antiphase behaviour with the Arctic Oscillation (AO) index on interannual and decadal time-scales. Weaker (stronger) wave activity leads to less (more) northward ozone transport and to a stronger (weaker) AO.</p><p>Rossby wave activity occurs as episodic wave events and this wave forcing is not uniform during winter. The November-December stratospheric eddy heat flux is strongly anticorrelated with the January-February eddy heat flux in the midlatitude stratosphere and troposphere. Weaker upward wave fluxes in early winter lead to stronger upward wave fluxes from the troposphere as well as to a stronger polar night jet during midwinter and vice versa. Hence upward wave activity fluxes in early winter define, to a considerable extent, the subsequent evolution of the midwinter circulation in the stratosphere and troposphere.</p>

Several physical mechanisms concerning the impact of Rossby waves on ozone distribution and circulation in the stratosphere and troposphere are studied in the thesis. Summertime total ozone variability over Middle Asia and Northern Scandinavia shows similar wave-like behaviour with typical periods of 10-20 days and amplitudes of 20-50 Dobson units. These variations are caused by eastward travelling Rossby waves in the lower stratosphere. The same mechanism plays the primary role in the formation of an intense low ozone episode over Scandinavia in August 2003. A strong anticyclone was formed in the troposphere over Europe as a part of a Rossby wave train. The anticyclone coincides with a displaced Artic pool of low-ozone air in the stratosphere aloft of the anticyclone. A combination of the two above-mentioned processes results in the total ozone minimum over Northern Europe for summer 2003. Interannual variability of the atmospheric circulation and total ozone during winter is strongly controlled by the diabatic (Brewer-Dobson) circulation which is driven by upward propagating waves from the troposphere. In the Northern Hemisphere midlatitudes, wintertime total ozone shows antiphase behaviour with the Arctic Oscillation (AO) index on interannual and decadal time-scales. Weaker (stronger) wave activity leads to less (more) northward ozone transport and to a stronger (weaker) AO. Rossby wave activity occurs as episodic wave events and this wave forcing is not uniform during winter. The November-December stratospheric eddy heat flux is strongly anticorrelated with the January-February eddy heat flux in the midlatitude stratosphere and troposphere. Weaker upward wave fluxes in early winter lead to stronger upward wave fluxes from the troposphere as well as to a stronger polar night jet during midwinter and vice versa. Hence upward wave activity fluxes in early winter define, to a considerable extent, the subsequent evolution of the midwinter circulation in the stratosphere and troposphere.

The purpose of this research is to determine the average energy intensity of multi-unit residential buildings (MURBs) in Toronto, and evaluate whether certain building characteristics influence energy intensity. This information is particularly important in the Toronto market. Relative to the city’s population, Toronto has an unusually high proportion of MURBs with more than half of residential dwellings in apartment buildings. Additionally, Toronto MURBs are significant consumers of energy and produce an estimated 1.3M tonnes of CO2e each year. The ultimate goal is to assess the most efficient building retrofit measures. Energy consumption data for Toronto MURBs were collected and weather normalized. Correlations between the energy data and the building characteristics were examined. Window characteristics and heating system type were found to have the most significant influence on energy intensity. Establishing energy consumption characteristics of MURBs is the first step towards improving the energy efficiency of Toronto’s MURBs stock.

The purpose of this research is to determine the average energy intensity of multi-unit residential buildings (MURBs) in Toronto, and evaluate whether certain building characteristics influence energy intensity. This information is particularly important in the Toronto market. Relative to the city’s population, Toronto has an unusually high proportion of MURBs with more than half of residential dwellings in apartment buildings. Additionally, Toronto MURBs are significant consumers of energy and produce an estimated 1.3M tonnes of CO2e each year. The ultimate goal is to assess the most efficient building retrofit measures. Energy consumption data for Toronto MURBs were collected and weather normalized. Correlations between the energy data and the building characteristics were examined. Window characteristics and heating system type were found to have the most significant influence on energy intensity. Establishing energy consumption characteristics of MURBs is the first step towards improving the energy efficiency of Toronto’s MURBs stock.

The intention of this work is to explore how Aboriginal learners are produced in the Saskatchewan Adult Basic Education (ABE) curriculum. In addition, this study examines the production of instructor identities in the curriculum. This thesis explores the social and historical contexts influencing the production of the ABE curriculum. Current prevailing discourses about Aboriginal people influence the curriculum documents. These discourses construct a grand narrative about Aboriginal people, producing Aboriginal people in particular ways that become acceptable and legitimate ways of thinking about and behaving toward Aboriginal people. This work examines how such a grand narrative functions to uphold dominance and structural inequalities rather than challenge them. The effect of reinforcing the current, particular grand narrative about Aboriginal people is that, rather than challenge dominant ideologies, the new curriculum re-inscribes them. This work employs the methodology of discourse analysis as a means of examining the production of particular identities for Aboriginal learners in ABE and uses deconstruction to explore the ways that the documents betray themselves in relation to their objectives. This thesis provides analysis of the ways that the curriculum documents produce and reproduce Aboriginal people as deficient and requiring change. This work provides analysis of the conflict within the documents between a desire to challenge dominance and the re-inscription of dominance through discursive practices. In addition, this work demonstrates how the ABE curriculum aids in the production of dominant instructor identities, and how such dominant identities assist instructors to define themselves as innocent and helpful. This analysis of the ABE curriculum reveals that while the curriculum aspires to be a proponent of social justice for Aboriginal learners it has many weaknesses in this regard. This work concludes with recommendations for changes to the curriculum and instructor practices, and for further critical analysis.

This essay is a study of the various attitudes and behavioral habits for music consumption and discovery of new music amongst young people in Sweden from a receivers perspective. The aim of the study is to review and map out the current trends, habits and cultural views on music consumption. An online survey was posted and spread on Facebook with 195 respondents as a result. The analyzed result and conclusions of the survey was then to be of use for understanding how to market and spread new music more efficiently. The study showed that there are three dominating sources of music for youth in Sweden. Whether it is discovering new music, sharing music, or just consuming music through media platforms, the three dominating trends are; friends, social media and streaming services. The traditional media channels such as TV and radio are losing power compared to earlier generations but are still vital for music marketing when working in symbiosis with positive audience response. Most of the young people in our study use the combination computer-streaming service to listen to music and discover new music through friends. They also value music recommendations from friends the most. A lot of the young people also discover music through social media, such as Facebook. The study showed that the people who discovered music through social media also used social media for sharing music. Ergo, we believe the most important channels to focus on, if you want to reach as many recipients as possible when marketing and spreading new music with young people in Sweden as the target audience, is Facebook and Spotify, while also keeping in mind the importance of Word Of Mouth and Buzz Marketing.

The intention of this work is to explore how Aboriginal learners are produced in the Saskatchewan Adult Basic Education (ABE) curriculum. In addition, this study examines the production of instructor identities in the curriculum. This thesis explores the social and historical contexts influencing the production of the ABE curriculum. Current prevailing discourses about Aboriginal people influence the curriculum documents. These discourses construct a grand narrative about Aboriginal people, producing Aboriginal people in particular ways that become acceptable and legitimate ways of thinking about and behaving toward Aboriginal people. This work examines how such a grand narrative functions to uphold dominance and structural inequalities rather than challenge them. The effect of reinforcing the current, particular grand narrative about Aboriginal people is that, rather than challenge dominant ideologies, the new curriculum re-inscribes them. This work employs the methodology of discourse analysis as a means of examining the production of particular identities for Aboriginal learners in ABE and uses deconstruction to explore the ways that the documents betray themselves in relation to their objectives. This thesis provides analysis of the ways that the curriculum documents produce and reproduce Aboriginal people as deficient and requiring change. This work provides analysis of the conflict within the documents between a desire to challenge dominance and the re-inscription of dominance through discursive practices. In addition, this work demonstrates how the ABE curriculum aids in the production of dominant instructor identities, and how such dominant identities assist instructors to define themselves as innocent and helpful. This analysis of the ABE curriculum reveals that while the curriculum aspires to be a proponent of social justice for Aboriginal learners it has many weaknesses in this regard. This work concludes with recommendations for changes to the curriculum and instructor practices, and for further critical analysis.

This study focuses on the booking agencies in Sweden and their point of view on the reality with a focal point from the mass media perspective, which says that they have become rather wealthy because of the changes within the music business. The mass media describes the booking agencies situation as golden because of the economical and technological changes that more or less have paralysed the record industry. The study is performed with a qualitative approach and is based on interviews with relevant individuals from eight different Swedish booking agencies. These individuals have been chosen to match as many different segments in the booking agency business as possible. On account of the qualitative approach it is difficult to generalize the conclusion of the study. We have nevertheless noted some tendencies that the technological development has had a strong impact on the everyday situations for the booking agencies. These will be presented in chapter five.

Context: Current unsustainable practices have resulted in the depletion of natural resources and a prevailing material scarcity. Urban Mining has emerged in this context and suggests the “mining” of cities or other sources in urban areas to retrieve valuable resources. It raises the topic of how urban mining as a market segment of the construction industry is like today and in the future.  Objective: The thesis sets out to study what firms in the urban mining market segment desires in terms of needs and priorities. Furthermore, what could be prioritized in the future (2030), what future scenarios could be expected and what implications these can have on organizations within the segment and on the construction industry.  Method: A foresight methodology was applied as a framework for the research design. Interview with representatives from 10 firms, including observations of their operations, resulted in a number of mutual needs shared across the urban mining segment. These were prioritized in relative importance based on a questionnaire of 67 respondents representing 44 different firms in Sweden. A combination of these studies and a review of technology trends further enabled the extrapolation of future scenarios.  Results: The findings shows that firms within the urban mining market segment prioritizes and emphasizes needs related concerns in optimization, cost control, safety, environmental and social care today. Needs related to safety, environmental and social care are indicated to remain top prioritized as a result of the future market circumstances. A holistic and lifecycle approach in urban mining practices was deemed of low priority today but was indicated to grow significantly in relative importance in the future.  Conclusion: Technology, urbanization and globalization indicates stricter and more competitive market circumstances in the future. Especially related to safety, lifecycle consideration, environmental, and social care. The research suggests that firms concerned and those operating within the urban mining segment may need to undergo transformational changes in their organization to meet what the market segment expects in the future. Moreover, the findings opens up the possibility for actors and stakeholders concerned with the construction industry to proactively go into a desired future by knowing how the future market could unfold. / Stanford University, ME310: Urban Mining

This thesis describes fundamental approaches to quantify rate versus power consumption tradeoffs for cascaded communication systems. The discussion is bolstered by a large number of in-situ channel measurements, which are used in discussions of the power consumption of future massively broadband cellular systems. Chapter one provides an introduction. Chapter two discusses power consumption trends in modern communication systems. Chapter three introduces the consumption factor framework. Chapter four discusses the channel measurement campaign. Chapter five concludes the thesis, and uses the measurement results to estimate power consumption and capacity of future cellular systems. In addition, chapter five extends the consumption factor theory and draws fundamental conclusions about the energy price per bit for a general cascaded communication system. / text