1,721,407 research outputs found
Power and surveillance in YouTube's digital neighborhood: a case study of college students in the Bronx
No full textPower and Surveillance in YouTube’s Digital Neighborhood: A Case Study of College Students in the Bronx explores classic issues of power, surveillance and media use in the social-networking site YouTube. As articulated in its Empirical Model, this exploratory study utilizes a Cultural Studies approach and a Uses and Gratifications framework. These perspectives form the theoretical foundation for the research plan and mixed-method qualitative and quantitative research strategies structure the research protocol. Focus groups and a widely distributed survey were used to gather and analyze the raw data. In the Bronx YouTube study, the researcher posed the following research questions: ―What does posting on YouTube mean to users, ―Why or why don’t users post on YouTube, ―Do systems of power and surveillance operate within the YouTube digital neighborhood and if so, how do they operate and are users aware of them, and finally ―How does YouTube differ from other social networking sites? The study results indicate some potential areas for further research in terms of attitudes, beliefs, and behaviors. For instance, study participants were concerned about the privacy of their email address and financial information yet did not participate much in uploading videos themselves, nor were they concerned about gender, race, or education when correlated with YouTube DV’s. Study participants did, however, actively comment on other people’s videos and communicated with people they knew in real life (IRL) through YouTube’s SNS features. Study participants also expressed high-levels of concern about the collection and selling of their financial and email information by YouTube and its affiliates. Of particular note, the research results indicate that the Bronx YouTube study participants were aware of many online surveillance techniques utilized by YouTube, LLC and Google, actively protected themselves while in YouTube from that surveillance and even sought out specific ways to circumvent surveillance and seek opportunities to further their own personal or professional goals.Ph. D.Includes bibliographical referencesIncludes vitaby Matthew Ryan Cric
Detection of deoxyribonucleic acid polymorphisms in thermal gradients via a scanning laser confocal system
No full textThesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.Includes bibliographical references (p. 32-33).by Matthew Ryan Graham.S.M
A Spatial Analysis of Offender Residence and Neighborhood Crime Rate: An Exploratory Study of Gang Membership
Full text linkA thesis presented to the faculty of the Caudill College of Humanities, Arts, and Social Sciences at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Arts by Matthew Ryan Laurin in December of 2011
High fidelity modelling of neighbourhood-scale environments
No full textArrays of buildings with pitched roofs are common in urban and suburban areas of European cities. Large-eddy simulations are performed to predict the boundary-layer flows over flat and pitched-roof cuboids to gain a greater understanding of the impact of pitched roofs on urban boundary layers. The simulation methodology is validated for an array of flat roof cuboids. Further simulations show that changes in the type of grid conformity have a negligible effect on the mean flow field and turbulent stresses, while having a visible, but small, effect on the dispersive stresses for a given packing density. Comparisons are made for flat and 45◦ pitched roof cuboid arrays at packing densities of 16.7% and 33.3%. The interactions between pitched-roof buildings and their effect on the urban boundary layer are considerably different to those of flat-roof buildings. The pitched roofs at a packing density of 33.3% leads to significant changes in the mean flow field, the Reynolds stresses, and the aerodynamic drag. Further work investigates the effects of changes in turbulence level and atmospheric thermal stratification in the approaching flow. Importantly, in comparison to a flat-roof array, the pitched-roof one at a packing density of 33.3% evidently increases the friction velocity and greatly reduces the effects of stable stratification conditions and changes in inflow turbulence level. iv Past work has shown that coupling can exist for urban flows between street scale (O(0.1 km)) and city scale (O(10 km)). Unfortunately, it is generally impractical at present to develop high-fidelity urban simulations capable of capturing such effects. This imposes a need to develop better parameterisations for meso-scale models but an information gap exists in that past work has generally focused on simplified urban geometries and generally assumed the buildings to be on flat ground. This study aimed to begin to address this gap in a systematic way by using the large eddy simulation method with synthetic turbulence inflow conditions to simulate atmospheric air flows over the University of Southampton campus using semi-realistic (i.e. flat terrain) and realistic geometries including significant local terrain features. The LES data were processed to obtain averaged vertical profiles of time-averaged velocities and second order turbulence statistics. The semi-realistic geometry simulation was validated against high resolution particle image velocimetry data. To address the uncertainty due to inflow turbulent intensity, the effects of different levels of inflow turbulence were assessed. The realistic geometry simulations conclusively showed that the inclusion of terrain can have a considerable effect on global quantities, such as the depth of the span wise-averaged internal boundary layer and spatially-averaged turbulent kinetic energy (TKE). The terrain effects on local time-mean velocity and TKE at the same above-ground-level height can be even more significant. These findings demonstrate the crucial importance of local terrain features (O(0.1km)), and can have significant impact on near-field dispersion and urban micro-climate
Investigation of the effects of alternative diesel fuels on the performance, emissions, and combustion characteristics of a 2004 heavy-duty on-highway, direct injection, turbocharged and aftercooled caterpillar C11 diesel engine.
No full textUniversity of Minnesota M.S. dissertation. August 2010. Major: Mechanical Engineering. Advisor: Dr. David B. Kittelson. 1 computer file (PDF); xvii, 287 pages, appendix p. 188-287. Ill. (some col.)Summary abstract not available.Kenitzer, Matthew Ryan. (2010). Investigation of the effects of alternative diesel fuels on the performance, emissions, and combustion characteristics of a 2004 heavy-duty on-highway, direct injection, turbocharged and aftercooled caterpillar C11 diesel engine.. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/102039
751400 – Supplemental material for Analyzing Student Learning Gains to Evaluate Differentiated Teacher Preparation for Fostering English Learners’ Achievement in Linguistically Diverse Classrooms
No full textSupplemental material, 751400 for Analyzing Student Learning Gains to Evaluate Differentiated Teacher Preparation for Fostering English Learners’ Achievement in Linguistically Diverse Classrooms by Matthew Ryan Lavery, Joyce Nutta and Alison Youngblood in Journal of Teacher Education</p
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
