Browsing by Subject "Video"
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Item The Discrete Imaginary: Thierry Kuntzel's Video Installation Art(2016-06) Nony, AnaisIn this dissertation, my goal is to analyze the reflexive function of video aesthetics. I focus on the staging of the video medium, its mode of display, distribution, and the proliferation of its usage in daily life to reveal the implications of analogico-digital images in shaping both psychic and collective life. In particular, I analyze how video is embedded in specific operations—from the pixelisation of the image to its algorithmically produced materiality. These operations, I argue, have come to be fundamental to thinking about how media grammaticalize our sensitive milieu. The manuscripts focuses on French theorist and video artist Thierry Kuntzel.Item Effects of A Remote, YouTube-Delivered Exercise Intervention on Young Adults’ Physical Activity, Sedentary Behavior, Sleep Quality, and Psychosocial Outcomes during the COVID-19 Pandemic: Randomized Controlled Trial(2021-08) McDonough, DanielIntroduction: Recent population-level surveillance data indicate that over 80% of U.S. adults fail to meet the minimum physical activity recommendations for aerobic and muscle-strengthening physical activities. This has become a major public health challenge given the numerous physiological and economic consequences associated with physical inactivity. Additionally, high levels of physical inactivity have been observed to adversely affect individuals' sleep quality which further contributes to the incidence of hypokinetic diseases and all-cause mortality and further burdens the economy indirectly by decreasing daytime productivity. With the outbreak of the Coronavirus disease 2019 (COVID-19) and the enacted regulations to reduce its transmission, there is currently an infectious disease pandemic that has compounded the preexisting physical inactivity pandemic. While all demographics have been affected by these regulations, U.S. young adults in particular have been forced to make extraordinary changes to their lifestyle and behavioral patterns which has created exceptional barriers to their physical activity participation and has further exacerbated the issue of poor sleep quality in this population. Recent public health guidelines, therefore, have called for innovative and flexible physical activity intervention strategies to promote physical activity and health amid the COVID-19 pandemic. Given present-day young adults are technology-savvy and are the primary consumers of social media, delivering a physical activity promotion intervention via social media may be an effective strategy for remotely disseminating such an intervention. However, meta-analyses have observed social media-based interventions to be ineffective at improving young adults’ physical activity levels and only one randomized controlled trial to date has examined the effectiveness of video-based social media platforms on this populations’ physical activity, showing no positive effects. Therefore, this study’s purpose was to examine the effects of a remote, home-based, YouTube video-delivered aerobic and muscle-strengthening physical activity intervention on young adults’ free-living aerobic and muscle-strengthening physical activity, sedentary behavior, sleep quality, and psychosocial health outcomes over 12 weeks compared to control (ClinicalTrials.gov identifier: NCT04499547). Methods: Sixty-four young adults (48 females; X̅age = 22.8 ± 3.4 years; X̅BMI = 23.1 ± 2.6 kg/m2) from a large metropolitan research University in the Midwest participated in this prospective, 12-week, parallel randomized controlled trial during Fall 2020/Winter 2021. In detail, participants were randomized (1:1) into the intervention group (received weekly aerobic and muscle-strengthening physical activity videos grounded in Self-determination theory) or control group (received weekly general health education videos) for 12 weeks. Briefly, the intervention videos were grounded in Self-determination Theory because recent research observed that young adults demonstrated lower autonomous motivation to engage in home-based physical activities during the COVID-19 pandemic due to limited or no access to familiar exercise equipment, among other reasons. Briefly, Self-determination theory postulates that by fulfilling three basic human psychological needs (i.e., competency, autonomy, and relatedness), one’s motivation for physical activity will progress to more internally regulated forms, ranging from amotivation to intrinsic motivation, thereby improving the likelihood of longer-term adherence to physical activity. The primary outcome was free-living moderate-to-vigorous-intensity physical activity, and the secondary outcomes were sedentary behavior, light physical activity, and sleep quality (measured using wrist-worn ActiGraph GT9X accelerometers) and muscle-strengthening physical activity frequency, Self-determination theory-related autonomous motivation for physical activity (i.e., non-regulation, external regulation, introjected regulation, identified regulation, integrated regulation, and intrinsic regulation), perceived physical activity barriers, physical activity-related enjoyment, physical activity-related self-efficacy, and Self-determination Theory-related social support (assessed using validated questionnaires). Process evaluation outcomes (intervention fidelity, use, and adherence) were also evaluated. Repeated measures ANCOVAs examined between-group differences for all study outcomes at a Bonferroni-adjusted significance level of 0.003 (0.05/16 outcomes) to account for potential bias from multiple comparisons and effect sizes were calculated as partial eta-squared (p2) for outcomes which were observed as statistically significant. Results: Three experimental group participants discontinued participation for reasons unrelated to the study (retention rate = 95.3%). Because these participants’ baseline data were not significantly different from completers’ data, an intent-to-treat analysis was employed which was determined a priori. Because between-group demographic differences in randomized, parallel trials are, by definition, due to chance, baseline group differences were not statistically examined. Overall, however, it was determined that baseline comparisons between groups were not materially different and thus, concluded that the randomization procedures were robust. Statistically significant between-group differences were observed for moderate-to-vigorous-intensity physical activity, sleep efficiency, muscle-strengthening physical activity frequency, non-regulation, integrated regulation, and intrinsic regulation, perceived physical activity barriers, and physical activity-related self-efficacy (F(1, 62) = 10.64-228.87, p < 0.001-0.002, p2 = 0.15-0.79) with all outcomes favoring the intervention group after 12 weeks. However, no statistically significant between-group differences were observed for sedentary behavior, light physical activity, sleep duration, external, introjected, and identified regulations, and physical activity-related enjoyment after 12 weeks (F(1, 62) = 0.69-4.60, p = 0.04-0.61). Conclusion: With some national COVID-19 restrictions still in place and uncertainty regarding post-pandemic physical activity/exercise environments and behaviors, a remote, YouTube-delivered physical activity and exercise intervention may help foster clinically meaningful improvements in young adults’ free-living moderate-to-vigorous-intensity physical activity, muscle-strengthening physical activity frequency, sleep efficiency, physical activity-related intrinsic motivation, perceived physical activity barriers, and physical activity-related self-efficacy after 12 weeks. Indeed, this intervention yielded high interest, adherence, and use/acceptability among the sample of young adults.Item I'm Not Yelling(2024-04-06) Polikoff, WhalenItem Low-Cost Portable Video-Based Queue Detection for Work- Zone Safety(2011-01) Morris, Ted; Schwach, Jory A.; Michalopoulos, Panos G.Highway work-zone safety is a major concern for government agencies, the legislature, and the traveling public. Several work zone intelligent transportation systems (WZITS) have been developed as a safety countermeasure to warn drivers of dangerous traffic conditions. Unfortunately, the effectiveness of a WZTIS is diminished if the actual traffic flow conditions do not correspond with the sensor information leading to false warnings; these confuse drivers and reduce the credibility of the system, which is often ignored. This can lead to situations where drivers crash into work-zone areas because they are unprepared to stop. The national cost of crashes due to this was estimated to be nearly $2.5 billion. Such “dangerous” traffic conditions are typically characterized by unpredictable queue formations that propagate rapidly into higher speed traffic immediately upstream from the active work zone. False positives or missed warnings could be reduced if the location of queue tails in addition to vehicle speeds in proximity to the active work zone can be accurately detected. In this study, a low-cost rapidly deployable and portable queue detection WZITS warning system is proposed. To demonstrate WZITS feasibility, a queue detection algorithm was designed and tested using widely available, field proven, machine vision hardware that can be integrated into the current portable system prototype, using video data collected in the field from the portable device. The warning trigger generated by the algorithm can then be transmitted to a remote upstream location for triggering roadside emergency warning devices (such as VMS, flashers, etc.).Item Nibi & Manoomin Symposium 2013 Building Lasting Relationships President Eric Kaler's Video Message(2013) Kaler, President EricNibi & Manoomin Symposium 2013 Building Lasting Relationships President Eric Kaler's Video MessageItem Rapidly develoyable low cost traffic datta and video collection device.(2009-12) Schwach, Jory AndrewTransportation practitioners, planners and researchers lack the availability of an easily deployable, non-intrusive, portable, low-cost device for traffic data collection and video recording at intersections and arterials as well as temporary remote surveillance. The necessary data usually includes volumes, speeds, classification, turning movements, queue size and length, conflicting movements, time headways and vehicle delay. They also include recording of traffic characteristics, accidents and other special situations. A visual record of traffic characteristics at intersections, arterials, or other locations can also be used for extensive analysis and research leading to improved safety and control practices. In this thesis, the development and demonstration of a low-cost, practical, rapidly deployable video recording and data collection device is presented along with the design, deployment, and data extraction process. Its major advantage at intersections is that only one unit can cover an entire intersection up to 5 lanes per incoming approach wide (20 incoming lanes total), which should be sufficient for the overwhelming majority of intersections. In addition it has the potential of extracting turning movements automatically including optional lanes through advanced machine vision or radar sensors.Item Ritual #1: a case study in collaborative process.(2012-02) Crockett, ZacharyAfter introducing historical models of interdisciplinary collaboration, I describe my process, laying out an example for future creators of collaborative arts performances. When I began this project, I felt like there was no precedent that gave a clear path for how to work. Even after consulting with various mentors, I was only made aware of one artist I could contact who had done something similar. I attempted to follow his model but knew from the beginning that I was working with a significantly more limited budget and different goals. With some experience I gave up on the initial idea and switched to a project that felt more conventional and pragmatic. Interesting elements of this new direction gradually took shape, and a graphically distributed identity of collaborators generated not only aesthetic content but also logistic solutions. The process of creating VOCA::Omni (Ritual #1) facilitated deep artistic exploration and growth for me and all the collaborators.