Matching Items (6)
Description
Arcadia Elementary School is an urban Title 1 school that serves 800 students in kindergarten through eighth grade. The school uses a commercial program called Make Your Day to manage student behavior. This program, aligned to the tenets of Positive Behavior Interventions and Supports (PBIS), meets the needs of most students but not the most frequent classroom disruptors. This mixed methods participatory action research study explores the how an understanding of a frequently disruptive student's ecology can lead to more effective support and improved behavioral outcomes. The Behavior Intervention Team process consists of effective data tracking tools and practices and a team-based, data-driven approach to student behavior analysis and is a model for how urban schools can leverage existing resources to better support disruptive students.
ContributorsBartanen, Peter (Author) / Puckett, Kathleen (Thesis advisor) / Mathur, Sarup (Committee member) / Halpert, Michael (Committee member) / Arizona State University (Publisher)
Created2015
Description
Lipids and free fatty acids (FFA) from cyanobacterium Synechocystis can be used for biofuel (e.g. biodiesel or renewable diesel) production. In order to utilize and scale up this technique, downstream processes including culturing and harvest, cell disruption, and extraction were studied. Several solvents/solvent systems were screened for lipid extraction from Synechocystis. Chloroform + methanol-based Folch and Bligh & Dyer methods were proved to be "gold standard" for small-scale analysis due to their highest lipid recoveries that were confirmed by their penetration of the cell membranes, higher polarity, and stronger interaction with hydrogen bonds. Less toxic solvents, such as methanol and MTBE, or direct transesterification of biomass (without pre-extraction step) gave only slightly lower lipid-extraction yields and can be considered for large-scale application. Sustained exposure to high and low temperature extremes severely lowered the biomass and lipid productivity. Temperature stress also triggered changes of lipid quality such as the degree of unsaturation; thus, it affected the productivities and quality of Synechocystis-derived biofuel. Pulsed electric field (PEF) was evaluated for cell disruption prior to lipid extraction. A treatment intensity > 35 kWh/m3 caused significant damage to the plasma membrane, cell wall, and thylakoid membrane, and it even led to complete disruption of some cells into fragments. Treatment by PEF enhanced the potential for the low-toxicity solvent isopropanol to access lipid molecules during subsequent solvent extraction, leading to lower usage of isopropanol for the same extraction efficiency. Other cell-disruption methods also were tested. Distinct disruption effects to the cell envelope, plasma membrane, and thylakoid membranes were observed that were related to extraction efficiency. Microwave and ultrasound had significant enhancement of lipid extraction. Autoclaving, ultrasound, and French press caused significant release of lipid into the medium, which may increase solvent usage and make medium recycling difficult. Production of excreted FFA by mutant Synechocystis has the potential of reducing the complexity of downstream processing. Major problems, such as FFA precipitation and biodegradation by scavengers, account for FFA loss in operation. Even a low concentration of FFA scavengers could consume FFA at a high rate that outpaced FFA production rate. Potential strategies to overcome FFA loss include high pH, adsorptive resin, and sterilization techniques.
ContributorsSheng, Chieh (Author) / Rittmann, Bruce E. (Thesis advisor) / Westerhoff, Paul (Committee member) / Vermaas, Willem (Committee member) / Arizona State University (Publisher)
Created2011
Description
My project focuses on the future of traditional radio and answering the question of whether or not it will be able to survive in a digital age. I provided a literature review to offer background of the history of radio and the challenges it has faced during its existence. I addressed five specific areas: television, satellite radio, Internet radio, podcasts, and mobile devices. My creative element consisted of a radio documentary that compiled interviews from professionals in the broadcast industry. I answered three questions in my research: 1.) Do experts in the industry believe traditional radio will be able to survive the emergence of new technologies and non-traditional programming? Or, will these new technologies and non-traditional programming ultimately overcome traditional radio and become the new standard? 2.) In what ways do industry experts believe that the traditional radio format will have to change in order to compete and prevail over new technologies to remain successful? 3.) Which non-traditional radio formats do industry experts believe pose the biggest threat to traditional radio? In conclusion, I found uncertain times--but also times of opportunity and innovation lie ahead for the broadcast industry. Traditional radio will exist for the foreseeable future. As long as the radio dial exists in cars, traditional radio will remain relevant. In order to adapt as digital technology gains popularity, traditional radio must provide programming that is interesting and compelling to satisfy the increased thirst for audio. Keywords: future of traditional radio, disruption, digital audio
ContributorsBrown, Benjamin Donald (Author) / Blatt, Rebecca (Thesis director) / Rackham, Brian (Committee member) / Walter Cronkite School of Journalism and Mass Communication (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
The COVID-19 pandemic has revealed the fault lines in society. Whether it be remote work, remote learning, online shopping, grocery and meal deliveries, or medical care, disparities and inequities among socio-economic and demographic groups leave some segments of society more vulnerable and less adaptable. This thesis aims to identify vulnerable and less adaptable groups in the context of access to food. Using a comprehensive behavioral survey data set collected during the height of the pandemic in 2020, this thesis aims to provide insights on the groups that may have experienced food access vulnerability during the disruption when businesses and establishments were restricted, the risk of contagion was high, and accessing online platforms required technology-savviness and the ability to afford delivery charges. This thesis presents estimation results for a simultaneous equations model of six endogenous choice variables defined by a combination of two food types (groceries and meals) and three access modalities (in-person, online with in-person pickup, and online with delivery). The model estimation results show that attitudes and perceptions play a significant role in shaping pandemic-era access modalities. The model revealed that even after controlling for a host of attitudinal indicators, minorities, those having low household incomes, those living in low-density or rural locations, females, and those with lower educational attainment are particularly vulnerable to being left behind and experiencing challenges in accessing food during a severe and prolonged disruption. Social programs should aim to provide these vulnerable groups with tools and financial resources to leverage online activity engagement and access modalities. Policy recommendations to increase food access for the mostvulnerable in future disruption scenarios are explored.
ContributorsDirks, Abbie Clara (Author) / Pendyala, Ram M. (Thesis advisor) / Chester, Mikhail V. (Committee member) / Polzin, Steven E. (Committee member) / Arizona State University (Publisher)
Created2023
Description
The function and purpose of higher education has changed over the last decade. COVID-19 exacerbated that change, but well before Coronavirus exploded on the world stage, standard operations at most colleges and universities were in flux. In 2013, a New York Times article predicted many colleges and universities would shutter their doors or merge with another institution. A new paradigm for post-secondary education is emerging akin to what American community colleges have been doing since their inception; they work closely with industry and the community in which they are situated to ensure they teach skills students need to receive a living wage job upon graduation. Change and disruption have engendered problems at times tantamount to chaos in the higher education space. To make meaningful modifications in higher education, the chaos of change should be harnessed to devise a better system, as transformative chaos works its power to create a more cohesive model. Moreover, if change is not managed with expertise, it has the potential to run amok, leaving organizations in ruins. The purpose of this study was to examine how a nine-week workshop based in mindfulness and gentle movement affected College of Eastern Idaho staff members’ ability to manage constant change to see if it might augment their coping, competence, self-efficacy, resiliency and reframe the chaos of change to opportunity for their careers, their department, and the college. Mixed methods of inquiry were utilized; data sources included two pre- and post-intervention staff surveys, a focus group interview with four participants, participant journals they kept throughout the nine-weeks, and the researcher’s field notes from individual one-on-one check-ins with participants. This study demonstrated that staff members at College of Eastern Idaho had difficulty efficaciously performing their jobs because of the constant change and initiative fatigue. The study found that a nine-week Mindfulness from the Mat workshop positively impacted staff members coping, competence, self-efficacy, resiliency, and their attitudes about change. Moreover, the workshop had unexpected benefits of positively impacting participants personal lives, too. The discussion includes implications for future practice and research and potential explanations for the findings.
ContributorsBarber, Lori D. (Author) / Ott, Molly (Thesis advisor) / Henriksen, Danah (Committee member) / Redington, Lyn (Committee member) / Arizona State University (Publisher)
Created2023
Description
This paper examines the fundamental problem statement of: How can the hotel & resort industry resist and overcome the new competitive challenge that the sharing economy and Airbnb have imposed on it? This wasn’t a problem up until this past decade, as hotels had long been the world’s main solution for individuals looking for a place to stay in exchange for a fee. That has changed nowadays as the rise of the sharing economy has created a new, fast-growing demand for Airbnb in the hospitality industry. We have witnessed powerful companies die as a result of not taking disruptive technology seriously, as seen with Blockbuster and Kodak; however, we have also seen impressive reactions to disruptive technology in other cases such as Walmart and Alibaba that use it to enhance the customer experience. Hotels arose from humble beginnings and progressively became more than just a place to sleep. This is evidenced by the progression from 16th century humble inns to large luxury hotels in the 19-20th century to many hotels being significant tourist attractions themselves nowadays. While some factors such as security, hygiene, and consistency currently remain on the hotel industry’s side, the main factors fueling the growth of Airbnb are closely tied to consumer preferences and Airbnb’s ability to create unique, authentic experiences. A questionnaire with 756 responses from ASU students was conducted for this project’s primary research. The results concluded that this demographic travels often, slightly prefers hotels over Airbnb, and values location, convenience, and cost the most. Results were consistent with findings discussed in literature, since the bulk of respondents said they look at Airbnb for low-cost options and hotels for high-end options. Hotels reign supreme in the high-end market and benefit from their location and convenience factors, but Airbnb might have an opportunity to leverage their attractive capabilities while also incorporating some of hotels’ best aspects. This can cause the preference of hotels over Airbnb to diminish further going forward. Hotels can combat Airbnb in multiple ways. One is for hotel chains to customize more hotels to fit the local destination like Airbnb rather than keeping a more standardized vibe and design across all locations. Another is to continue focusing on creating unmatched service experiences in the high-end market that are hard for Airbnb to replicate. A third one is to implement more competitive pricing relative to Airbnb during peak seasons across different cities. Finally, given the increased awareness on hygiene and health that the COVID-19 crisis will likely bring after the pandemic, hotels should put greater emphasis on their hygiene factor when conducting publicity efforts, since this remains in favor of hotels rather than Airbnb and can attract customers who are still reeling with fear from the pandemic. All of this can help hotels to retain their crucial competencies while leveraging Airbnb’s competencies to create an incredible customer experience that is the best of both worlds. All of it prevent the hotel industry from going down a darker path than it has gone through before.
ContributorsValenzuela Gallardo, Juan (Author) / Eaton, John (Thesis director) / Mokwa, Michael (Committee member) / Department of Management and Entrepreneurship (Contributor) / Department of Marketing (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05