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This phenomenological qualitative study examines the experiences of volunteer tourism on host communities using social representations theory. The experiences of three stakeholder-groups (community residents, volunteers, and nongovernmental organizations) are considered. Overall objectives of this project are to investigate the following questions: a) what are the effects of volunteer tourism on

This phenomenological qualitative study examines the experiences of volunteer tourism on host communities using social representations theory. The experiences of three stakeholder-groups (community residents, volunteers, and nongovernmental organizations) are considered. Overall objectives of this project are to investigate the following questions: a) what are the effects of volunteer tourism on a community as perceived by different stakeholders; b) what effects do volunteer tourists have on the community compared to other forms of tourism as perceived by different stakeholders; c) how do the various stakeholders perceive the different forms of tourism in communities in which they live or work; and d) why and how do nongovernmental organizations (NGOs) use volunteer tourism as a strategy for their projects. This study attempts to describe and interpret these meanings with a high degree of depth and richness using interviews, observation, and document analysis. Each chapter is written as a stand-alone paper to be published in a journal and describes the perspectives of the three groups interviewed with the final chapter a summary and comparison from all three groups. Findings show that there are both positive and negative impacts of volunteer tourism in favela communities, with the majority of the three groups expressing its positives and its importance to the community. All groups mentioned similar positive and negative elements of volunteer tourism with some elements that were unique to each group. This study also attempted to compare and contrast the differences between volunteer tourism and favela tours. The findings show that volunteer tourism helps recreate the social representations of the favela thereby improving self-esteem in the community, helps breakdown preconceptions, and helps create community pride. The community feels as equals with the volunteers and describes the interactions as friendships, sharing cultural experiences, and exchanging of knowledge. Conversely, all three groups described favela tours as dehumanizing using words like `safari tour' or `zoo tour' and felt that their community was being sold as a commodity. However, the interviews showed that all three groups, although had strong opinions about the ethical implications of favela tours, still felt conflicted when comparing it with some of the potential social and economic benefits that it may bring.
ContributorsAquino, Jessica Faustini (Author) / Andereck, Kathleen (Thesis advisor) / Mcgehee, Nancy (Committee member) / Phillips, Rhonda (Committee member) / Wang, Lili (Committee member) / Arizona State University (Publisher)
Created2013
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Description
In many respects, the current public child welfare system closely resembles that of over 100 years ago. Then, as well as now, nonprofit child welfare agencies are the critical providers of service delivery to vulnerable children and their families. Contemporary nonprofits, however, are confronted with social and fiscal pressures to

In many respects, the current public child welfare system closely resembles that of over 100 years ago. Then, as well as now, nonprofit child welfare agencies are the critical providers of service delivery to vulnerable children and their families. Contemporary nonprofits, however, are confronted with social and fiscal pressures to conform to normative practices and behaviors of governmental and for-profit organizations. Simultaneously, these agencies may also feel compelled to behave in accordance with a nonprofit normative ethic. Yet, scholars and practitioners are often unaware of how these different forces may be shaping the practices of child welfare agencies and, the nonprofit sector in general. This multi-paper dissertation examines how managerial and organizational practices of child welfare nonprofits are influenced business, government, and other nonprofit organizations and the extent to which processes process of institutional isomorphism in child welfare nonprofits are happening. Data was collected from a national ample of 184 child welfare administrators to explore marketization practices, collaboration behaviors, and managerial priorities of these agencies. Multinomial logistic, ordered logistic, and ordinary least squares regression, and historical analysis help shed light on the contemporary practices of these agencies. The results reveal that these agency's behaviors are shaped by government control, influences from the business community, identification with a nonprofit mindset (i.e., nonprofitness), funding streams, and various other factors. One key finding is that identification with a nonprofit mindset encourages certain behaviors like collaboration with other nonprofits and placing greater importance on key managerial priorities, but it does not reduce the likelihood of adopting business management strategies. Another important finding is that government control and funding does not have as strong as an influence on child welfare nonprofits as expected; however, influence from the business community does strongly affect many of their practices. The implications of these findings are discussed for child welfare agencies and the nonprofit sector in general. The consequences of nonprofits operating similarly to business and government are considered.
ContributorsRobichau, Robbie Waters (Author) / Catlaw, Thomas (Thesis advisor) / Nahavandi, Afsaneh (Committee member) / Gustavsson, Nora (Committee member) / Wang, Lili (Committee member) / Arizona State University (Publisher)
Created2013
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Description
It is estimated there are tens of millions of street children throughout the world. Existing literature has identified the conditions street children live in; and additional research has shown how these conditions typically affect the self-esteem of children. There is also ample research to support self-esteem as a critical component

It is estimated there are tens of millions of street children throughout the world. Existing literature has identified the conditions street children live in; and additional research has shown how these conditions typically affect the self-esteem of children. There is also ample research to support self-esteem as a critical component to a healthy childhood development. Existing research suggests that street children should have a low self-esteem, however data has not yet been collected to examine if this is true. Existing literature has also not yet explored how the self-esteem of street children is a necessary component to economic development. Based on Amartaya Sen's development theory of capabilities, damaged self-esteem in street children could be considered a hindrance to development.

This paper will examine how the self-esteem of street children is important to overall economic development. To understand if the self-esteem of street children are affected how existing literature suggests, this research examines the self-esteem of street children (n=22) in the Philippines using the Culture Free Self-Esteem Inventories 3 tool, which quantifies self-esteem levels with the Global Self-Esteem Quotient (GSEQ). In comparison to the GSEQ standardized scale, almost all street children surveyed scored below average or lower. The mean GSEQ score for the street children in Manila was below average.
ContributorsWolfe, Alyssa (Author) / Grossman, Gary (Committee member) / Parmentier, Mary Jane (Committee member) / Wang, Lili (Committee member) / Arizona State University (Publisher)
Created2015
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Description
In countries of conflict, non-governmental organizations (NGOs) often resort to humanitarian relief. A small number of peace and conflict resolution organizations (P/CROs) engage more directly, through grassroots mediation, elite negotiation and advocacy. This thesis observes the potential for implementing such direct conflict interventions in traditional relief and development organizations. To

In countries of conflict, non-governmental organizations (NGOs) often resort to humanitarian relief. A small number of peace and conflict resolution organizations (P/CROs) engage more directly, through grassroots mediation, elite negotiation and advocacy. This thesis observes the potential for implementing such direct conflict interventions in traditional relief and development organizations. To understand current NGO activities, I examine ten case study organizations in two countries of conflict, Cote d'Ivoire and Somalia. I analyze organizations' rhetorical presentation, their society-level engagement, strategies for intervention, and responses to persistent challenges, such as security, impartiality, collaboration and evaluation. Based on conflict study literature, I make tentative recommendations for NGOs in Cote d'Ivoire and Somalia specifically. I also propose a more general system for classifying NGO peace work: five generations of conflict intervention, each more integrated, direct, and political. Rhetorical, structural and operational changes will help organizations move toward higher generation work.
ContributorsDiddams, Margaret (Author) / Ron, Amit (Thesis advisor) / Friedrich, Patricia (Thesis advisor) / Wang, Lili (Committee member) / Arizona State University (Publisher)
Created2011
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Description
Many developing countries do not have health care systems that can afford technological biomedical devices or supplies to make such devices operational. To fill this void, nonprofit organizations, like Project C.U.R.E., recondition retired biomedical instrumentation so they can send medical supplies to help these developing countries. One of the issues

Many developing countries do not have health care systems that can afford technological biomedical devices or supplies to make such devices operational. To fill this void, nonprofit organizations, like Project C.U.R.E., recondition retired biomedical instrumentation so they can send medical supplies to help these developing countries. One of the issues with this is that sometimes the devices are unusable because components or expendable supplies are not available (Bhadelia). This issue has also been shown in the Impact Evaluations that Project C.U.R.E. receives from the clinics that explain the reasons why certain devices are no longer in use. That need underlies the idea on which this honors thesis has come into being. The purpose of this honors project was to create packing lists for biomedical instruments that Project C.U.R.E. recycles. This packing list would decrease the likelihood of important items being forgotten when sending devices. If an extra fuse, battery, light bulb, cuff or transducer is the difference between a functional or a nonfunctional medical device, such a list would be of benefit to Project C.U.R.E and these developing countries. In order to make this packing list, manuals for each device were used to determine what supplies were required, what was necessary for cleaning, and what supplies were desirable but functionally optional. This list was then added into a database that could be easily navigated and could help when packing up boxes for a shipment. The database also makes adding and editing the packing list simple and easy so that as Project C.U.R.E. gets more donated devices the packing list can grow.
ContributorsGraft, Kelsey Anne (Author) / Coursen, Jerry (Thesis director) / Walters, Danielle (Committee member) / Harrington Bioengineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
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Description
The town of Guadalupe, Arizona has a long history of divided residents and high poverty rates. The high levels of poverty in the town can be attributed to numerous factors, most notably high rates of drug abuse, low high school graduation rates, and teen pregnancy. The town has named one

The town of Guadalupe, Arizona has a long history of divided residents and high poverty rates. The high levels of poverty in the town can be attributed to numerous factors, most notably high rates of drug abuse, low high school graduation rates, and teen pregnancy. The town has named one of its most pressing issues of today to be youth disengagement. There are currently a handful of residents and community members passionate about finding a solution to this issue. After working with Guadalupe's Ending Hunger Task Force and resident youth, I set out to create a program design for a Guadalupe Youth Council. This council will contribute to combating youth disengagement. The program design will assist the task force in creating a standing youth council and deciding on the structure and role the council has in the town. I will offer learning outcomes and suggestions to the Task Force, youth council staff, and the youth of the youth council. This study contains an analysis of relevant literature, youth focus group results and data, and how the information gathered has contributed to the design of the youth council. The results of this study contain recommendations about four themes within the program design of a youth council: size, recruitment, activities and engagement, and adult support. The results also explore how the youth council will impact the power, policy, and behavior of Guadalupe youth.
ContributorsBalderas, Erica Theresa (Author) / Wang, Lili (Thesis director) / Avalos, Francisco (Committee member) / School of Community Resources and Development (Contributor) / Department of Information Systems (Contributor) / W.P. Carey School of Business (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
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Description
The Hippo signaling pathway is responsible for regulating organ size through cell proliferation, stemness, and apoptosis. Through targeting proteins Yes-associated kinase 1(YAP) and transcriptional co-activator with a PDZ-binding domain(TAZ), YAP/TAZ are unable to enter the nucleus and bind with coactivators to express target genes. To understand YAP/TAZ dynamics and its

The Hippo signaling pathway is responsible for regulating organ size through cell proliferation, stemness, and apoptosis. Through targeting proteins Yes-associated kinase 1(YAP) and transcriptional co-activator with a PDZ-binding domain(TAZ), YAP/TAZ are unable to enter the nucleus and bind with coactivators to express target genes. To understand YAP/TAZ dynamics and its role in tumorigenesis, tissue regeneration, and tissue degeneration, a regulatory network was modeled by ordinary differential equations. Using MATLAB, the deterministic behavior of the network was observed to determine YAP/TAZ activity in different states. Performing the bifurcation analysis of the system through Oscill8, three states were identified: tumorigenic/regenerative, degenerative, and homeostatic states. Further analysis through parameter modification allowed a better understanding of which proteins can be targeted for cancer and degenerative disease.
ContributorsBarra Avila, Diego Rodrigo (Author) / Tian, Xiaojun (Thesis director) / Wang, Xiao (Committee member) / Harrington Bioengineering Program (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
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Description
Based on James Marcia's theory, identity development in youth is the degree to which one has explored and committed to a vocation [1], [2]. During the path to an engineering identity, students will experience a crisis, when one's values and choices are examined and reevaluated, and a commitment, when the

Based on James Marcia's theory, identity development in youth is the degree to which one has explored and committed to a vocation [1], [2]. During the path to an engineering identity, students will experience a crisis, when one's values and choices are examined and reevaluated, and a commitment, when the outcome of the crisis leads the student to commit to becoming an engineer. During the crisis phase, students are offered a multitude of experiences to shape their values and choices to influence commitment to becoming an engineering student. Student's identities in engineering are fostered through mentoring from industry, alumni, and peer coaching [3], [4]; experiences that emphasize awareness of the importance of professional interactions [5]; and experiences that show creativity, collaboration, and communication as crucial components to engineering. Further strategies to increase students' persistence include support in their transition to becoming an engineering student, education about professional engineers and the workplace [6], and engagement in engineering activities beyond the classroom. Though these strategies are applied to all students, there are challenges students face in confronting their current identity and beliefs before they can understand their value to society and achieve personal satisfaction. To understand student's progression in developing their engineering identity, first year engineering students were surveyed at the beginning and end of their first semester. Students were asked to rate their level of agreement with 22 statements about their engineering experience. Data included 840 cases. Items with factor loading less than 0.6 suggesting no sufficient explanation were removed in successive factor analysis to identify the four factors. Factor analysis indicated that 60.69% of the total variance was explained by the successive factors. Survey questions were categorized into three factors: engineering identity as defined by sense of belonging and self-efficacy, doubts about becoming an engineer, and exploring engineering. Statements in exploring engineering indicated student awareness, interest and enjoyment within engineering. Students were asked to think about whether they spent time learning what engineers do and participating in engineering activities. Statements about doubts about engineering to engineering indicated whether students had formed opinions about their engineering experience and had understanding about their environment. Engineering identity required thought in belonging and self-efficacy. Belonging statements called for thought about one's opinion in the importance of being an engineer, the meaning of engineering, an attachment to engineering, and self-identification as an engineer. Statements about self-efficacy required students to contemplate their personal judgement of whether they would be able to succeed and their ability to become an engineer. Effort in engineering indicated student willingness to invest time and effort and their choices and effort in their engineering discipline.
ContributorsNguyen, Amanda (Author) / Ganesh, Tirupalavanam (Thesis director) / Robinson, Carrie (Committee member) / Harrington Bioengineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
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Description
Alzheimer’s Disease (AD) affects over 5 million individuals in the U.S. and has a direct cost estimated in excess of $200 billion per year. Broadly speaking, there are two forms of AD—early-onset, familial AD (FAD) and late-onset-sporadic AD (SAD). Animal models of AD, which rely on the overexpression of FAD-related

Alzheimer’s Disease (AD) affects over 5 million individuals in the U.S. and has a direct cost estimated in excess of $200 billion per year. Broadly speaking, there are two forms of AD—early-onset, familial AD (FAD) and late-onset-sporadic AD (SAD). Animal models of AD, which rely on the overexpression of FAD-related mutations, have provided important insights into the disease. However, these models do not display important disease-related pathologies and have been limited in their ability to model the complex genetics associated with SAD.

Advances in cellular reprogramming, have enabled the generation of in vitro disease models that can be used to dissect disease mechanisms and evaluate potential therapeutics. To that end, efforts by many groups, including the Brafman laboratory, to generated patient-specific hiPSCs have demonstrated the promise of studying AD in a simplified and accessible system. However, neurons generated from these hiPSCs have shown some, but not all, of the early molecular and cellular hallmarks associated with the disease. Additionally, phenotypes and pathological hallmarks associated with later stages of the human disease have not been observed with current hiPSC-based systems. Further, disease relevant phenotypes in neurons generated from SAD hiPSCs have been highly variable or largely absent. Finally, the reprogramming process erases phenotypes associated with cellular aging and, as a result, iPSC-derived neurons more closely resemble fetal brain rather than adult brain.

It is well-established that in vivo cells reside within a complex 3-D microenvironment that plays a significant role in regulating cell behavior. Signaling and other cellular functions, such as gene expression and differentiation potential, differ in 3-D cultures compared with 2-D substrates. Nonetheless, previous studies using AD hiPSCs have relied on 2-D neuronal culture models that do not reflect the 3-D complexity of native brain tissue, and therefore, are unable to replicate all aspects of AD pathogenesis. Further, the reprogramming process erases cellular aging phenotypes. To address these limitations, this project aimed to develop bioengineering methods for the generation of 3-D organoid-based cultures that mimic in vivo cortical tissue, and to generate an inducible gene repression system to recapitulate cellular aging hallmarks.
ContributorsBounds, Lexi Rose (Author) / Brafman, David (Thesis director) / Wang, Xiao (Committee member) / Harrington Bioengineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
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Description
The combination of immunohistochemical (IHC) stainings and optical microscopy has allowed for the visualization of specific microscopic structures within tissue; however, limitations in light and antibody penetration mitigate the scale on which these images can be taken (Alshammari et al, 2016; Marx, 2014). Tissue clearing, specifically the removal of lipids

The combination of immunohistochemical (IHC) stainings and optical microscopy has allowed for the visualization of specific microscopic structures within tissue; however, limitations in light and antibody penetration mitigate the scale on which these images can be taken (Alshammari et al, 2016; Marx, 2014). Tissue clearing, specifically the removal of lipids to improve sample transparency, solves the former weakness well, but does not improve antibody penetration significantly (Chung et al, 2013; Treweek et al, 2015). Therefore, there is a need to equalize the maximum depth that light can pass through a section with the depth at which there is recognizable fluorescence. This is particularly important when staining blood vessels as traditional size limitations exclusively allows for cross sectional visualization. Passive CLARITY Technique (PACT) has been at the forefront of tissue clearing protocols, utilizing an acrylamide hydrogel solution to maintain structure and sodium dodecyl sulfate to wash out lipids (Tomer et al, 2014). PACT is limited in its ability to clear larger sections and is not conducive to IHC antibody diffusion (Treweek et al, 2015). In order to circumvent these drawbacks, CUBIC was developed as an alternative passive protocol, aimed at being scalable to any tissue size (Richardson, 2015; Susaki et al, 2015). This study compared the effectiveness of both protocols in high and low lipid tissues in the context of blood vessel staining efficacy. Upon initial comparison, it became apparent that there was a statistically significant difference in mean DAPI intensity at all depths, up to 200 micrometers, between CUBIC and PACT \u2014 the former showcasing brighter stainings. Moreover, it was found that PACT does not remove erythrocytes from the tissue meaning that their auto-fluorescence is seen during imaging. Therefore, for blood vessel stainings, only CUBIC was optimized and quantitatively analyzed. In both tissue conditions as well as for two stainings, DAPI and fibronectin (FNCT), optimized CUBIC demonstrated a statistically significant difference from standard CUBIC with regards to mean fluorescent intensity.
ContributorsSidhu, Gurpaul Singh (Author) / VanAuker, Michael (Thesis director) / Kodibagkar, Vikram (Committee member) / Harrington Bioengineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05