Matching Items (54)
A Comparison of the Effects of Two Warm- Up Protocols on Strength and Power in College- Aged Females
Description
The following study compared the effects of acute static stretching (SS) and whole body vibration (WBV) protocols on strength and power in college-aged recreationally active females. Ten active, Arizona State University females participated in the study after providing informed consent and filling out a survey to determine their health status and physical activity level. Participants took part in the study over two days, each day starting with a standardized cycling protocol, followed by random assignment to either a static stretching or whole body vibration warm-up condition. Whichever protocol they did not complete during the first session, they completed during the second session. After the warm-up protocol, vertical hang time and vertical jump were used to test leg power, and 1- RM bench press, and 1- RM leg press were used to evaluate the participants’ upper and lower body strength, respectively. Multiple t-tests were conducted for each sports performance test conducted: vertical hang time, vertical jump, bench press, and leg press. Strength and power, as assessed in this sample, were not significantly different based on warm-up protocol. T-tests comparing the effects of two warm-up techniques revealed that there were no significant differences in the leg power scores for vertical hang time (p ≤0.86) (effect size = 0), or vertical jump height (p =1) (effect size = 0). Similarly, there were no significant differences in bench press (p ≤0.08) (effect size = 0.38), and leg press (p ≤0.29) (effect size = 0.31), although effect sizes were moderate. Because of the medium effect sizes for leg press (0.31) and bench press (0.38), it is possible that WBV can facilitate greater strength gains in female college students, but more subjects are needed to further evaluate this finding. Given that leg power was not different based on warm-up technique, it is possible that static stretching for less than 30 seconds did not impede power in these active females. Clearly, more research needs to be performed on the effectiveness of the vibration platform comparing additional bouts of duration and frequency in active and athletic college-aged females.
ContributorsCring, Kelsey Marie (Author) / Randsell, Lynda (Thesis director) / Feser, Erin (Committee member) / School of Nutrition and Health Promotion (Contributor) / Barrett, The Honors College (Contributor)
Created2017-12
Description
Scenario planning originally garnered attention within the corporate sector as a tool to manage energy transitions, but it has gained traction within the field of sustainability. It is a process for exploring potential futures and thinking critically about complex decisions that involve high degrees of uncertainty. It is also effective in shifting mental models, engaging diverse stakeholders, and enhancing organizational learning, making it ideal for the complex problems that sustainability seeks to address. The resulting insights from scenario planning are typically used in strategic planning, which further aligns it with sustainability’s commitments to action-oriented solutions.
As a highly participative process, its success hinges on inclusive and just engagement of participants. This dissertation employed a multimethod approach to address the question, “What impacts do social dynamics have on participation in scenario planning for sustainability?” First, I conducted an ethical exploration of participation, looking to the systemic societal factors that might function as barriers to authentic participation. Next, I conducted an ethnographic study of a scenario planning workshop to identify ways in which social influence and authority impact participation in the process. Finally, I piloted a psychology study that explored the impact of explicit acknowledgement of status differential and the use of pre-event brainstorming on participation in a small group task that parallels scenario planning interactions.
In doing so, this dissertation presents a conceptual framework from which to understand the role of participation in scenario planning for sustainability and coins the term “strawman participation,” drawing attention to the role and function of social influence in participatory processes. If “token participation” arises from participants not being granted decision-making power, strawman participation develops from social/structural barriers, then “authentic participation” allows for both decision-making power and social capacity for participation. Though my findings suggest that scenario planning utilizes methods to equalize participation and engage diverse participants, factors such as status differentials and gender dynamics impact authentic participation. Results of the pilot study point to the utility of status concealment and individual-level brainstorming to bolster participation. Ultimately, this work contributes to a more nuanced understanding of participation in service of more robust, pluralistic sustainability decision making.
As a highly participative process, its success hinges on inclusive and just engagement of participants. This dissertation employed a multimethod approach to address the question, “What impacts do social dynamics have on participation in scenario planning for sustainability?” First, I conducted an ethical exploration of participation, looking to the systemic societal factors that might function as barriers to authentic participation. Next, I conducted an ethnographic study of a scenario planning workshop to identify ways in which social influence and authority impact participation in the process. Finally, I piloted a psychology study that explored the impact of explicit acknowledgement of status differential and the use of pre-event brainstorming on participation in a small group task that parallels scenario planning interactions.
In doing so, this dissertation presents a conceptual framework from which to understand the role of participation in scenario planning for sustainability and coins the term “strawman participation,” drawing attention to the role and function of social influence in participatory processes. If “token participation” arises from participants not being granted decision-making power, strawman participation develops from social/structural barriers, then “authentic participation” allows for both decision-making power and social capacity for participation. Though my findings suggest that scenario planning utilizes methods to equalize participation and engage diverse participants, factors such as status differentials and gender dynamics impact authentic participation. Results of the pilot study point to the utility of status concealment and individual-level brainstorming to bolster participation. Ultimately, this work contributes to a more nuanced understanding of participation in service of more robust, pluralistic sustainability decision making.
ContributorsRodegher, Sandra Lina (Author) / Selin, Cynthia L (Thesis advisor) / Shiota, Michelle (Committee member) / McGregor, Joan (Committee member) / Arizona State University (Publisher)
Created2015
Description
Privilege is unearned advantages, access, and power reserved for a select group of people. Those that benefit from privilege manifest their power consciously and sub-consciously so as to maintain their exclusive control of the opportunities privilege affords them. The reach and power of one’s privilege rises and falls as the different social identities that one possesses intersect. Ultimately, if a society built on justice and equity is to be achieved, those with privilege must take tangible steps to acknowledge their privilege and work to end the unequal advantages and oppression that are created in order to perpetuate privilege. This thesis unpacks privilege through an autoethnographic examination of the author’s history. Through the use of creative nonfiction, personal stories become launching points to explore characteristics of privilege manifest in the author’s life which are emblematic of larger social groups that share many of the author’s social identities. The following characteristics of privilege are explored: merit, oppression, normalization, economic value, neutrality, blindness, and silence.
ContributorsBlack, Luke (Author) / Swadener, Elizabeth (Thesis advisor) / de la Garza, Amira (Committee member) / Scott, Kimberly (Committee member) / Arizona State University (Publisher)
Created2015
Description
This research investigates the conditions under which people use consumption choices to signal accurate versus enhanced information about themselves to others. Across five studies, I demonstrate that activating a self-verification, as opposed to self-enhancement, motive leads consumers to choose products that signal accurate information about a self-view, even when this view is negative. I replicate this finding across several self-view domains, including physical attractiveness, power, and global self-esteem. However, I find that this effect is attenuated when consumers have a high fear of negative social evaluation. My findings suggest that this type of consumption, in which choice is driven by the desire to be seen accurately (vs. positively), can explain abundant real-world behavior; contradicting the notion that consumers choose products primarily for self-enhancement.
ContributorsBrannon, Daniel Carlos (Author) / Mandel, Naomi (Thesis advisor) / Samper, Adriana (Committee member) / Morales, Andrea (Committee member) / Arizona State University (Publisher)
Created2016
Description
In the past 10 to 15 years, there has been a tremendous increase in the amount of photovoltaic (PV) modules being both manufactured and installed in the field. Power plants in the hundreds of megawatts are continuously being turned online as the world turns toward greener and sustainable energy. Due to this fact and to calculate LCOE (levelized cost of energy), it is understandably becoming more important to comprehend the behavior of these systems as a whole by calculating two key data: the rate at which modules are degrading in the field; the trend (linear or nonlinear) in which the degradation is occurring. As opposed to periodical in field intrusive current-voltage (I-V) measurements, non-intrusive measurements are preferable to obtain these two key data since owners do not want to lose money by turning their systems off, as well as safety and breach of installer warranty terms. In order to understand the degradation behavior of PV systems, there is a need for highly accurate performance modeling. In this thesis 39 commercial PV power plants from the hot-dry climate of Arizona are analyzed to develop an understanding on the rate and trend of degradation seen by crystalline silicon PV modules. A total of three degradation rates were calculated for each power plant based on three methods: Performance Ratio (PR), Performance Index (PI), and raw kilowatt-hour. These methods were validated from in field I-V measurements obtained by Arizona State University Photovoltaic Reliability Lab (ASU-PRL). With the use of highly accurate performance models, the generated degradation rates may be used by the system owners to claim a warranty from PV module manufactures or other responsible parties.
ContributorsRaupp, Christopher (Author) / Tamizhmani, Govindasamy (Thesis advisor) / Srinivasan, Devarajan (Committee member) / Rogers, Bradley (Committee member) / Arizona State University (Publisher)
Created2016
Description
This dissertation is a visual and narrative-based autoethnography that narrates the lived educational experiences of the author from preschool through doctoral studies. The text portrays a story that explores issues of power, identity, and pedagogy in education. Told in narrative form, this project utilizes visual data, thematic coding, layering, and writing as a method of inquiry to investigate and more fully understand injustices found in the American education system. Findings show how the author’s identities of student, teacher, and researcher influence and impact one another, and lead to the development of a future vision of self.
By examining the author’s roles as a student, teacher, and researcher this study centers on conflicts and inconsistencies that arise at the intersections of self, community, institutions, and society. Included in the narrative’s analysis are issues related to positionality, visions of success, empowerment, resistance, neoliberalism, colonialism, psychological distance, and ideological purpose in teaching. The narrative concludes with the development of a personal vision of purposeful, empowering, liberating, and transformative pedagogy.
This study contributes its voice to conversations about inequity and inequality in education by asking the reader to examine conflicts, ask new questions, and critically engage with the dialogic text.
By examining the author’s roles as a student, teacher, and researcher this study centers on conflicts and inconsistencies that arise at the intersections of self, community, institutions, and society. Included in the narrative’s analysis are issues related to positionality, visions of success, empowerment, resistance, neoliberalism, colonialism, psychological distance, and ideological purpose in teaching. The narrative concludes with the development of a personal vision of purposeful, empowering, liberating, and transformative pedagogy.
This study contributes its voice to conversations about inequity and inequality in education by asking the reader to examine conflicts, ask new questions, and critically engage with the dialogic text.
ContributorsMazza, Bonnie Streff (Author) / Margolis, Eric (Thesis advisor) / Heineke Engebretson, Amy (Committee member) / Warriner, Doris (Committee member) / Arizona State University (Publisher)
Created2016
Description
State of art modern System-On-Chip architectures often require very low noise supplies without overhead on high efficiencies. Low noise supplies are especially important in noise sensitive analog blocks such as high precision Analog-to-Digital Converters, Phase Locked Loops etc., and analog signal processing blocks. Switching regulators, while providing high efficiency power conversion suffer from inherent ripple on their output. A typical solution for high efficiency low noise supply is to cascade switching regulators with Low Dropout linear regulators (LDO) which generate inherently quiet supplies. The switching frequencies of switching regulators keep scaling to higher values in order to reduce the sizes of the passive inductor and capacitors at the output of switching regulators. This poses a challenge for existing solutions of switching regulators followed by LDO since the Power Supply Rejection (PSR) of LDOs are band-limited. In order to achieve high PSR over a wideband, the penalty would be to increase the quiescent power consumed to increase the bandwidth of the LDO and increase in solution area of the LDO. Hence, an alternative to the existing approach is required which improves the ripple cancellation at the output of switching regulator while overcoming the deficiencies of the LDO.
This research focuses on developing an innovative technique to cancel the ripple at the output of switching regulator which is scalable across a wide range of switching frequencies. The proposed technique consists of a primary ripple canceller and an auxiliary ripple canceller, both of which facilitate in the generation of a quiet supply and help to attenuate the ripple at the output of buck converter by over 22dB. These techniques can be applied to any DC-DC converter and are scalable across frequency, load current, output voltage as compared to LDO without significant overhead on efficiency or area. The proposed technique also presents a fully integrated solution without the need of additional off-chip components which, considering the push for full-integration of Power Management Integrated Circuits, is a big advantage over using LDOs.
This research focuses on developing an innovative technique to cancel the ripple at the output of switching regulator which is scalable across a wide range of switching frequencies. The proposed technique consists of a primary ripple canceller and an auxiliary ripple canceller, both of which facilitate in the generation of a quiet supply and help to attenuate the ripple at the output of buck converter by over 22dB. These techniques can be applied to any DC-DC converter and are scalable across frequency, load current, output voltage as compared to LDO without significant overhead on efficiency or area. The proposed technique also presents a fully integrated solution without the need of additional off-chip components which, considering the push for full-integration of Power Management Integrated Circuits, is a big advantage over using LDOs.
ContributorsJoshi, Kishan (Author) / Bakkaloglu, Bertan (Thesis advisor) / Garrity, Douglas (Committee member) / Seo, Jae-Sun (Committee member) / Arizona State University (Publisher)
Created2016
Description
Using Michel Foucault’s archaeological and genealogical approaches, this study analyzes the influence of discourse—particularly the discursive impact of the short story, novel, poetry, chronicle, essay, film, photography, and comics—in shaping how soccer has become known in Latin America. The analysis not only considers how the so-called “beautiful game” and related texts have been embedded with dominant ideologies—among these heteronormativity, nationalism, elitism, and neoliberalism—but also how resisting discursive forces have attempted to deconstruct these notions. The following pages demonstrate that soccer in Latin America represents more than just a mere sport, but rather a significant social and cultural entity that facilitates an understanding of the region. Furthermore, by providing a critical view of one of the region’s most powerful cultural institutions, this study sheds light on how dominant individuals use the sport and popular culture to construct knowledge and guide social practices.
ContributorsRidge, Patrick Thomas (Author) / Foster, David W (Thesis advisor) / Tompkins, Cynthia (Committee member) / Urioste-Azcorra, Carmen (Committee member) / Arizona State University (Publisher)
Created2017
Description
This dissertation explores discourses in the contemporary United States surrounding the creation, coding, sterilization, and general keeping of canines in order to interrogate how sex, gender, race, class, sexuality, and species together serve biopolitical formations of social control, patriarchal white supremacy, and heteronormativity. Interrogating these socially constructed and oftentimes stereotypical narratives through an interspecies lens demonstrates how taxonomies of power and systems of oppression and privilege become situated across species. This project utilizes interviews and ethnography, as well as analysis of popular culture, legislation and news media.
Interspeciesism is informed by feminist influences, functioning as a framing paradigm that engages with a politicized question of the animal that explicitly acknowledges human-animal entanglements across sites that are shaped by imperialism and colonialism. This interspecies project considers the political nature of relationships between humans and canines. It suggests that people situate their own identities and power not only in relation to other humans but also to other species. Simultaneously, the interspeciesm I engage with extends analyses of biopolitics, or the regulations of living bodies, beyond humans to all species. It interrogates how contemporary U.S. society has organized and identified itself in part through the ways in which it controls and monitors canines, often in relationship to the multiple ways dogs in the U.S. are racialized, classed and gendered by specific breeds. This coding of canine bodies with various taxonomies of power is not about dog breeds’ in-and-of themselves, but instead indicates that dominant U.S. society seeks to assert control over certain populations that are constructed as undesirable and unproductive.
Canines exist in a unique space in the U.S. cultural imaginary where they have multiple and oftentimes contradictory meanings that are influenced by a variety of power relations that transcend species. At stake is a critical concern regarding how interspecies bodies are made, controlled, formed, and refigured together under heteropatriarchal white supremacist modes of power. It draws attention to what these corporeal un(makings) imply for an ethics of being with, and thinking of, the other—human and animal.
Interspeciesism is informed by feminist influences, functioning as a framing paradigm that engages with a politicized question of the animal that explicitly acknowledges human-animal entanglements across sites that are shaped by imperialism and colonialism. This interspecies project considers the political nature of relationships between humans and canines. It suggests that people situate their own identities and power not only in relation to other humans but also to other species. Simultaneously, the interspeciesm I engage with extends analyses of biopolitics, or the regulations of living bodies, beyond humans to all species. It interrogates how contemporary U.S. society has organized and identified itself in part through the ways in which it controls and monitors canines, often in relationship to the multiple ways dogs in the U.S. are racialized, classed and gendered by specific breeds. This coding of canine bodies with various taxonomies of power is not about dog breeds’ in-and-of themselves, but instead indicates that dominant U.S. society seeks to assert control over certain populations that are constructed as undesirable and unproductive.
Canines exist in a unique space in the U.S. cultural imaginary where they have multiple and oftentimes contradictory meanings that are influenced by a variety of power relations that transcend species. At stake is a critical concern regarding how interspecies bodies are made, controlled, formed, and refigured together under heteropatriarchal white supremacist modes of power. It draws attention to what these corporeal un(makings) imply for an ethics of being with, and thinking of, the other—human and animal.
ContributorsClark, Meredith Helen (Author) / Leong, Karen J. (Thesis advisor) / Koblitz, Ann H. (Committee member) / Scheiner-Gillis, Georganne (Committee member) / Broglio, Ron (Committee member) / Arizona State University (Publisher)
Created2017
Description
Anderies (2015); Anderies et al. (2016), informed by Ostrom (2005), aim to employ robust
feedback control models of social-ecological systems (SESs), to inform policy and the
design of institutions guiding resilient resource use. Cote and Nightingale (2012) note that
the main assumptions of resilience research downplay culture and social power. Addressing
the epistemic gap between positivism and interpretation (Rosenberg 2016), this dissertation
argues that power and culture indeed are of primary interest in SES research.
Human use of symbols is seen as an evolved semiotic capacity. First, representation is
argued to arise as matter achieves semiotic closure (Pattee 1969; Rocha 2001) at the onset
of natural selection. Guided by models by Kauffman (1993), the evolution of a symbolic
code in genes is examined, and thereon the origin of representations other than genetic
in evolutionary transitions (Maynard Smith and Szathmáry 1995; Beach 2003). Human
symbolic interaction is proposed as one that can support its own evolutionary dynamics.
The model offered for wider dynamics in society are “flywheels,” mutually reinforcing
networks of relations. They arise as interactions in a domain of social activity intensify, e.g.
due to interplay of infrastructures, mediating built, social, and ecological affordances (An-
deries et al. 2016). Flywheels manifest as entities facilitated by the simplified interactions
(e.g. organizations) and as cycles maintaining the infrastructures (e.g. supply chains). They
manifest internal specialization as well as distributed intention, and so can favor certain
groups’ interests, and reinforce cultural blind spots to social exclusion (Mills 2007).
The perspective is applied to research of resilience in SESs, considering flywheels a
semiotic extension of feedback control. Closer attention to representations of potentially
excluded groups is justified on epistemic in addition to ethical grounds, as patterns in cul-
tural text and social relations reflect the functioning of wider social processes. Participatory
methods are suggested to aid in building capacity for institutional learning.
feedback control models of social-ecological systems (SESs), to inform policy and the
design of institutions guiding resilient resource use. Cote and Nightingale (2012) note that
the main assumptions of resilience research downplay culture and social power. Addressing
the epistemic gap between positivism and interpretation (Rosenberg 2016), this dissertation
argues that power and culture indeed are of primary interest in SES research.
Human use of symbols is seen as an evolved semiotic capacity. First, representation is
argued to arise as matter achieves semiotic closure (Pattee 1969; Rocha 2001) at the onset
of natural selection. Guided by models by Kauffman (1993), the evolution of a symbolic
code in genes is examined, and thereon the origin of representations other than genetic
in evolutionary transitions (Maynard Smith and Szathmáry 1995; Beach 2003). Human
symbolic interaction is proposed as one that can support its own evolutionary dynamics.
The model offered for wider dynamics in society are “flywheels,” mutually reinforcing
networks of relations. They arise as interactions in a domain of social activity intensify, e.g.
due to interplay of infrastructures, mediating built, social, and ecological affordances (An-
deries et al. 2016). Flywheels manifest as entities facilitated by the simplified interactions
(e.g. organizations) and as cycles maintaining the infrastructures (e.g. supply chains). They
manifest internal specialization as well as distributed intention, and so can favor certain
groups’ interests, and reinforce cultural blind spots to social exclusion (Mills 2007).
The perspective is applied to research of resilience in SESs, considering flywheels a
semiotic extension of feedback control. Closer attention to representations of potentially
excluded groups is justified on epistemic in addition to ethical grounds, as patterns in cul-
tural text and social relations reflect the functioning of wider social processes. Participatory
methods are suggested to aid in building capacity for institutional learning.
ContributorsBožičević, Miran (Author) / Anderies, John M (Thesis advisor) / Bolin, Robert (Committee member) / BurnSilver, Shauna (Committee member) / Arizona State University (Publisher)
Created2017