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- Creator:
- Moffit, Tyler
- Description:
- Introduction: Strength training can be used to prevent injuries and improve running economy in distance runners. the purpose of this study was to determine the relationship between lower extremity strength and distance running biomechanics. Methods: 36 competitive distance runners (26 male, 10 female) participated in this study. Participants performed maximal voluntary isometric contractions of the hip and knee extensors and knee flexors, a 1 repetition maximum back squat, and running biomechanics at a standardized and self-selected speed. Pearson correlations were used to analyze relationships between strength and biomechanics at the standard speed. Partial correlations were used to analyze relationships at the self-selected speed. Results: Hip extension peak torque (PT) was associated with less the peak hip extension power, standard speed (r = 0.48, p < 0.01), self-selected speed (r = 0.58 p = 0.001). Greater 1RM was associated with faster self-reported 5km time (r = -0.51 p = 0.002) and 1500m time (r = -.65 p < 0.001). Greater hip extension PT was also associated with faster 1500m time (r = -0.54 p < 0.01). Greater knee flexor PT was associated with faster 5k (r = -0.43 p = 0.01) and 1500m time (r = -0.50 p < 0.01). Discussion: Hip extension PT was positively correlated with hip extension power at preferred speed and standardized speed, indicating that weaker runners utilized more hip extension joint power for propulsion. While maximal strength may not influence joint mechanics at relatively slow paces in distance runners, it may allow the runners and maintain higher velocities in competition.
- Resource Type:
- Masters Thesis
- Identifier:
- 9780438055070
- Campus Tesim:
- Fullerton
- Department:
- Department of Kinesiology
22. Sex-specific Behavioral Strategies for Thermoregulation in the Common Chuckwalla (sauromalus Ater)
- Creator:
- Sanchez, Emily Rose
- Description:
- Intraspecific variability of behavioral thermoregulation in lizards due to habitat, temperature availability, and seasonality is well documented, but variability due to sex is not. Sex-specific thermoregulatory behaviors are important to understand because they can affect relative fitness in ways that result in different responses to environmental changes. the common chuckwalla (Sauromalus ater) is a great model for investigating sex differences in thermoregulation because males behave differently from females while they actively defend distinct territories while females may not. I recorded body temperatures of wild adult chuckwallas continuously from May to July 2016, as well as operative environmental temperatures in crevices and aboveground sites used by chuckwallas for basking. I compared the effect of sex on indices of thermoregulatory accuracy and effectiveness, aboveground activity, and the time chuckwallas selected body temperatures relative to their preferred temperature range (34–39 °C) for May-July. Males and females achieved the same thermoregulatory accuracy and effectiveness, and amount of time at preferred body temperatures, but males were more active aboveground than females, especially in June. These results indicate that different behavioral strategies can accomplish the same thermoregulatory outcomes. Further, chuckwallas might be able to cope with predicted changes in climate that result in a shorter amount of time they could be active at preferred body temperature because these lizards were only active aboveground for one to four hours per day, a fraction of the time available.
- Resource Type:
- Masters Thesis
- Identifier:
- 9780438054776
- Campus Tesim:
- Fullerton
- Department:
- Department of Biological Sciences
- Creator:
- Park, Jim
- Description:
- Nazi Germany took great measures to establish a homogenous society at the cost of human life and suffering. Seeking to create a racially pure nation, the leaders of National Socialism envisioned communal solidarity in political ideals, race, and even sexual orientation. in an attempt to create this “utopia,” the Nazis tried eradicating perceived “outsiders” through the concentration camp system either through death, enslavement, and/or “reeducation.” Among the groups targeted were homosexual men. Homosexuals had choices to either avoid or become released from concentration camps by demonstrating sexual intercourse with prostitutes or by agreeing to castration. Homosexuals were also released from concentration camps to serve in the German military during the Second World War. My research explores the everyday lives of homosexual men living under the Third Reich by utilizing the approach known as Alltagsgeschichte. I analyze the persecution of homosexuals by examining the memoirs of four survivors spanning from the closing years of the Weimar Republic to the end of the Third Reich. Alltagsgeschichte is invaluable by revealing the grey areas, taboo topics, and contradictions which structural history often times fails to address. by the utilization of my method, I conclude that gay men experienced different circumstances during the Nazi period due to a variety of factors including what area of the Third Reich they came from, reasons for arrests, where they were imprisoned, and cultural/religious background.
- Resource Type:
- Masters Thesis
- Identifier:
- 9780438061224
- Campus Tesim:
- Fullerton
- Department:
- Department of History
- Creator:
- Ali, Bezait Gashachew
- Description:
- An analysis of green roof water quality was done to answer this question: does the use of green roofs reduce or contribute to storm water pollution? Green Roofs can increase the overall water retention of an urban area and lower the volume of expected stormwater runoff. a Green Roof (GR) prototype was used to compare the runoff contamination level with a Non- Green Roof (NGR) system. Two tests were performed: The first one using rainwater samples collected over a span of three months and the second from a synthetic rainwater sample created in a laboratory. the sample set using rainwater source had a significant increase of Phosphate and a small decrease in Nitrate concentration within the GR system compared to the NGR system. the sample set of synthetic rainwater source had a larger reduction of Nitrate compared to the accumulation of Phosphate. the experiment also includes a peak flow calculation of GR and NGR systems within a study area in the City of Fullerton. GR and NGR systems were simulated using a hydrologic modeling software, Storm Water Management Model (SWMM). a 25%GR, 50%GR, and 60%GR runoff was compared to the NGR. All three GR systems helped reduced the runoff flow and depth. Furthermore, the proposed conditions were significantly effective in decreasing max flow, max full flow, and max full depth. Both rain water samples and synthetic rain samples show that GR system can improve water quality by decreasing nitrate concentration compared to the NGR system.
- Resource Type:
- Masters Thesis
- Identifier:
- 9780438055926
- Campus Tesim:
- Fullerton
- Department:
- Department of Civil and Environmental Engineering
- Creator:
- Petros, Peter
- Description:
- SRAM memories constitute a considerable fraction of modern VLSI designs and consist of a single system repeated thousands of times. Thus, design of these singular bitcells is essential to optimizing SRAM performance. However, comparison of designs is often difficult due to highly variable testing conditions, making direct comparisons of systems infeasible without independent simulations. This document serves as an introduction to common SRAM metrics in the categories of delay, power, and static noise margin in a 22nm process node. Common SRAM types 6T, 8T, and 4T as well as 4T loadless, 5T, and 8T charge recycling memories are tested using these methods. These systems are compared and presented as a reference material for future designs. a novel type of memory, 6T capacitively coupled, is presented and tested for viability and possible use cases. the memory is found to be infeasible using conventional methods, however a demonstration of its intended operation is presented.
- Resource Type:
- Masters Thesis
- Identifier:
- 9780438055322
- Campus Tesim:
- Fullerton
- Department:
- Department of Computer Science
26. Child Holocaust Survivors: Trials, Tribulations and Memory of Time Spent in Ghettos And/or Camps
- Creator:
- Cisneros, Ana Luisa
- Description:
- In the vast scholarship of Holocaust history, a lacuna exists with regards to child Holocaust survivors. It would not be until after the 1980s, when child Holocaust survivors were given acknowledgement as well as a survivors group in which to participate. by using interviews from the University of Southern California’s Shoah Foundation archives of fourteen child survivors, as well as memoirs, scholars of Holocaust history are provided with a broader view of their experiences; from how their childhoods were transformed throughout their early lives in European countries and all at ages ranging from three to eighteen through the duration of the war, to how those experiences affected them into adulthood, emigration, and parenthood. to survive day after day, these children used a variety of survival strategies. the experiences they lived through shaping not only themselves as they matured, but also their children and families. Ultimately, I argue there is no singular experience for children in the Holocaust, nor in their legacy thereafter.
- Resource Type:
- Masters Thesis
- Identifier:
- 9780438054547
- Campus Tesim:
- Fullerton
- Department:
- Department of History
27. Does Social Media Matter? Analysis of Social Media Usage and Political Actions from 2016 Election
- Creator:
- Coloso, Christian
- Description:
- This research study examines whether different degrees of social media (SM) usage increase the likelihood of individual and collective political actions—such as voting behavior or participation in protests or rallies. Studies on social media (SM) usage and political behavior show a positive relationship between SM and political engagement (Boulianne 2015), although how SM usage is associated with individual versus collective political actions remains unclear. during the 2016 U.S. presidential election, political strategist firm Cambridge Analytica and Russia’s Internet Research Agency micro-targeted biased FB content towards politically-related groups to shape the political narratives around candidates and voting behavior. While the effects of these fake news articles on election results is unknown, this study revisits the relationship between SM usage and political actions and attitudes during this last election period. Using the American National Election Survey 2016 Time Series Data, this study uses binary logistic and linear regression to reexamine the relationship between SM usage and political actions and attitudes surrounding the 2016 election. Parallel to previous studies, the researcher concludes that SM usage is moderately correlated to collective political actions, but remains weak and conditionally related to individualized political action.
- Resource Type:
- Masters Thesis
- Identifier:
- 9780438054677
- Campus Tesim:
- Fullerton
- Department:
- Department of Sociology
- Creator:
- Famili, Azadeh G.
- Description:
- The semiconductor industry has perfected the process of manipulating electron charge. the structure of a transistor is based on the formation of a channel between the source and drain when the gate voltage is applied. This time-tested structure is extremely reliable. However, there are several fundamental issues with this structure that need to be addressed. the standard (Complementary Metal Oxide Semiconductor) CMOS has gate control issues and can cause leakage by short channel effect. This occurs when the size of the transistor is scaled down which can cause the leakage and the static power to increase. Some of the new technologies have a better structure that doesn’t leak by nature. This research is focused on Spintronic devices. the research is not concentrating on a direct replacement to CMOS devices but to take advantage of Spintronic devices characteristic to achieve robust and high-performance computing. the idea behind Spintronics is to take advantage of the electron’s spin angular momentum to make a device that consumes less power compared to CMOS devices. We utilize this idea in a novel design for (Physical Unclonable functions) PUFs in hardware security which compared to conventional CMOS based not only it is low powered, but it can also be initialized. Spin-based design for a crossbar array to achieve computation in memory is also proposed in this research.
- Resource Type:
- Masters Thesis
- Identifier:
- 9780438054899
- Campus Tesim:
- Fullerton
- Department:
- Department of Computer Science
- Creator:
- Kakadiya, Sharadkumar A.
- Description:
- This research involves the experimental study of micromachining of Shape Memory Alloys using Dry Micro Electrical Discharge Machining process on an in-house built machining setup. the study considers the effect of critical process parameters including input voltage, input current, and capacitance on the material removal rate, cavity size and the tool wear ratio. a comparison study is performed between the Micro Electrical Discharge Machining process using the liquid as well as air as the dielectric medium. in this study, microcavities are successfully machined on shape memory alloys using Dry Micro Electrical Discharge Machining process. the study found that the Dry Micro Electrical Discharge Machining produces a comparatively better surface finish, has lower tool wear and lesser material removal rate compared to the process using the liquid as the dielectric medium. the results of this research could extend the critical industrial applications of Micro Electrical Discharge Machining processes.
- Resource Type:
- Masters Thesis
- Identifier:
- 9780438055940
- Campus Tesim:
- Fullerton
- Department:
- Department of Mechanical Engineering
- Creator:
- Zaheer, Adam
- Description:
- Dye-sensitized solar cells (DSSCs) have gained in popularity due to their possibility of one day replacing, the more common, silicon-based cells. Overall, dye-sensitized solar cells are cheaper to produce and can even achieve higher levels of efficiency than that of their predecessor. Although research into this specific form of renewable energy is relatively new, there are various ways to make DSSCs. One common type of cell, that is primarily found in research labs, is the glass-based DSSC. Currently the manufacturing of this type of cell is done almost exclusively by hand. in this work, a prototype of an autonomous DSSC manufacturing system is presented. with the utilization of a robotic arm, a motor driven conveyor belt, automated chemical dispensers, and an improvised hot plate, almost all human interaction with the manufacturing process is removed. Alongside these automated features lies an IoT network that is utilized to display sensor readings onto a webpage. Due to the modularity of this network, multiple sensors could be utilized for monitoring purposes although no controlling aspect is put in place at the moment. the cells that have been created by the system are compared to a handmade cell to ensure that the quality of the DSSC that is produced is up to par with what is typically used.
- Resource Type:
- Masters Thesis
- Identifier:
- 9780438055667
- Campus Tesim:
- Fullerton
- Department:
- Department of Computer Science