Matching Items (9)
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- All Subjects: Nonprofits
- Creators: School of Sustainability
- Member of: Barrett, The Honors College Thesis/Creative Project Collection
- Resource Type: Text
Description
Within recent years, metal-organic frameworks, or MOF’s, have gained a lot of attention in the materials research community. These micro-porous materials are constructed of a metal oxide core and organic linkers, and have a wide-variety of applications due to their extensive material characteristic possibilities. The focus of this study is the MOF-5 material, specifically its chemical stability in air. The MOF-5 material has a large pore size of 8 Å, and aperture sizes of 15 and 12 Å. The pore size, pore functionality, and physically stable structure makes MOF-5 a desirable material. MOF-5 holds applications in gas/liquid separation, catalysis, and gas storage. The main problem with the MOF-5 material, however, is its instability in atmospheric air. This inherent instability is due to the water in air binding to the zinc-oxide core, effectively changing the material and its structure. Because of this material weakness, the MOF-5 material is difficult to be utilized in industrial applications. Through the research efforts proposed by this study, the stability of the MOF-5 powder and membrane were studied. MOF-5 powder and a MOF-5 membrane were synthesized and characterized using XRD analysis. In an attempt to improve the stability of MOF-5 in air, methyl groups were added to the organic linker in order to hinder the interaction of water with the Zn4O core. This was done by replacing the terepthalic acid organic linker with 2,5-dimethyl terephthalic acid in the powder and membrane synthesis steps. The methyl-modified MOF-5 powder was found to be stable after several days of exposure to air while the MOF-5 powder exhibited significant crystalline change. The methyl-modified membrane was found to be unstable when synthesized using the same procedure as the MOF-5 membrane.
ContributorsAnderson, Anthony David (Author) / Lin, Jerry Y.S. (Thesis director) / Ibrahim, Amr (Committee member) / Chemical Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
Abstract Older adults and people with disabilities are two unique populations, though they intersect in their need for mobility options that are often not met by traditional transportation services. There is consensus that the government should provide assistance for older adults and people with disabilities to achieve and maintain independence. However, the challenge lies in addressing the many forms of mobility inequity. Population projections for the twenty-first century have sparked interest in the rights of these two populations. As the population of the United States of America ages, supporting the mobility of seniors and individuals with disabilities will become imperative to maintaining their quality of life. One existing federal grant, Section 5310: Enhanced Mobility for Seniors and Individuals with Disabilities (49 U.S.C. 5310) provides formula funding for services that provide transportation options to older adults and people with disabilities. While the 5310 program provides crucial funding to non-profits and government agencies to support mobility options for older adults and people with disabilities, it does not address the full scope of mobility issues faced by these two communities. This thesis project provides a thorough analysis of this grant from the federal legislation it is founded on, to the local administration of this grant as applied by the Maricopa Association of Governments (MAG). Finally, this thesis looks at emerging technology with the potential to revolutionize mobility, along with sobering historical context of the barriers faced older adults and people with disabilities.
ContributorsValencia, Martin J. (Author) / Kelley, Jason (Thesis director) / Voorhees, Matthew (Committee member) / School of Sustainability (Contributor) / School of Geographical Sciences and Urban Planning (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
The goals of the styrene oxide adsorption experiments were to develop reliable isotherms of styrene oxide onto Dowex Optipore L-493 resin and onto mesoporous carbon adsorbents, in addition to determining the ideal conditions for styrene oxide production from E. coli. Adsorption is an effective means of separation used in industry to separate compounds, often organics from air and water. Styrene oxide adsorption runs without E. coli were conducted at concentrations ranging from 0.15 to 3.00 g/L with resin masses ranging from 0.1 to 0.5 g of Dowex Optipore L-493 and 0.5 to 0.75 g of mesoporous carbon adsorbent. Runs were conducted on a shake plate operating at 80 rpm for 24 hours at ambient temperature. Isotherms were developed from the results and then adsorption experiments with E. coli and L-493 were performed. Runs were conducted at glucose concentrations ranging from 20-40 g/L and resin masses of 0.100 g to 0.800 g. Samples were incubated for 72 hours and styrene oxide production was measured using an HPLC device. Specific loading values reached up to 0.356 g/g for runs without E. coli and nearly 0.003 g of styrene oxide was adsorbed by L-493 during runs with E. coli. Styrene oxide production was most effective at low resin masses and medium glucose concentrations when produced by E. coli.
ContributorsHsu, Joshua (Co-author) / Oremland, Zachary (Co-author) / Nielsen, David (Thesis director) / Staggs, Kyle (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor) / School of Sustainability (Contributor)
Created2014-05
Description
Community gardens are used worldwide to promote sustainable, urban living. They can be used to improve the physical, mental, emotional, and social health of the gardeners and volunteers who utilize their grounds. The gardens may also have a positive impact on the local environment and wider community. This study examines a community garden seeking to expand its involvement in the local neighborhood and searching for ways to include local residents in garden related activities. To this end, the garden was waiting for approval on their non-profit, 501(c)3 status, and was seeking additional data on local residents and perceptions of the garden's activities. This thesis first reviews the literature on the benefits community gardens provide for the individuals living in their communities and their impact on urban development. The thesis then turns to an analysis of one garden, Mesa Urban Garden, rooted in the Downtown District of Mesa, Arizona, and how they are impacting their neighborhood and how garden organizers can respond in new and creative ways to local residents.
ContributorsBooher, Samantha Rose (Author) / Glick, Jennifer (Thesis director) / Dumka, Larry (Committee member) / Barrett, The Honors College (Contributor) / Hugh Downs School of Human Communication (Contributor) / School of Sustainability (Contributor)
Created2014-05
Description
Community gardens are used worldwide to promote sustainable, urban living. They can be used to improve the physical, mental, emotional, and social health of the gardeners and volunteers who utilize their grounds. The gardens may also have a positive impact on the local environment and wider community. This study examines a community garden seeking to expand its involvement in the local neighborhood and searching for ways to include local residents in garden related activities. To this end, the garden was waiting for approval on their non-profit, 501(c)3 status, and was seeking additional data on local residents and perceptions of the garden's activities. This thesis first reviews the literature on the benefits community gardens provide for the individuals living in their communities and their impact on urban development. The thesis then turns to an analysis of one garden, Mesa Urban Garden, rooted in the Downtown District of Mesa, Arizona, and how they are impacting their neighborhood and how garden organizers can respond in new and creative ways to local residents.
ContributorsBooher, Samantha Rose (Author) / Glick, Jennifer (Thesis director) / Dumka, Larry (Committee member) / Barrett, The Honors College (Contributor) / Hugh Downs School of Human Communication (Contributor) / School of Sustainability (Contributor)
Created2014-05
Description
The ecological benefits provided by trees include improving air quality (Nowak, et. al., 2006), mitigating climate change by sequestering carbon (Nowak, 1993), providing animal habitats (Livingston, et. al., 2003), and reducing heat (Edmonson, 2016), among others. Trees also provide numerous social benefits, impacting urban sustainability in particular by improving human health (Salmond, 2016), aesthetically and economically improving neighborhoods (Torres, 2012), and contributing to thriving communities by creating gathering spaces and even reducing crime (Abraham, et. al., 2010). Because of the tremendous potential of trees to provide social and ecological services, particularly in urban areas, tree planting has become an important facet of many sustainability initiatives. This thesis assesses one such initiative aimed at planting trees for the diverse benefits they provide. Valley Permaculture Alliance (VPA), a nonprofit based in Phoenix, Arizona, is known for its Shade Tree Program. The author conducted an internal, quantitative assessment of the program between August and December of 2015. The assessment included evaluation of several indicators of ecological and community health related to the presence of shade trees, culminating in a report released in 2016. This paper evaluates the use of sustainability indicators in the VPA assessment as well as their value in different types of organizations. It culminates with an assessment of VPA's strengths, challenges faced by the organization, and suggestions for its future development.
ContributorsJones, Michaela Martine (Author) / Larson, Kelli (Thesis director) / Eakin, Hallie (Committee member) / School of Sustainability (Contributor) / American Indian Studies Program (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
Description
This creative project is a collection of profiles focused on Arizona nonprofits and refugees. The profiles share stories of refugees, volunteers, employees and others involved in the community serving refugees. Nonprofits are a vital resource for refugee resettlement. These organizations offer services to support refugees as they transition into new communities. Some services include: housing, English language learning, cultural orientation, job placement, medical treatment, education, and farming. Each of these programs support resiliency for refugees and for the communities in which they live. We Are Resilient was created first, to show the important role nonprofits have in serving refugees. Second, to connect people to a few of the stories and experiences within the Arizona refugee community. And third, to build understanding of the strength refugees bring to communities of Arizona and by extension the country. Visit weareresilientaz.com to learn more.
ContributorsGray, Elizabeth (Co-author) / Johnson, Kelcie (Co-author) / Shockley, Gordon (Thesis director) / O'Flaherty, Katherine (Committee member) / School of Community Resources and Development (Contributor) / School of Sustainability (Contributor) / Walter Cronkite School of Journalism and Mass Communication (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
Description
Metal-organic frameworks (MOFs) are a new set of porous materials comprised of metals or metal clusters bonded together in a coordination system by organic linkers. They are becoming popular for gas separations due to their abilities to be tailored toward specific applications. Zirconium MOFs in particular are known for their high stability under standard temperature and pressure due to the strength of the Zirconium-Oxygen coordination bond. However, the acid modulator needed to ensure long range order of the product also prevents complete linker deprotonation. This leads to a powder product that cannot easily be incorporated into continuous MOF membranes. This study therefore implemented a new bi-phase synthesis technique with a deprotonating agent to achieve intergrowth in UiO-66 membranes. Crystal intergrowth will allow for effective gas separations and future permeation testing. During experimentation, successful intergrown UiO-66 membranes were synthesized and characterized. The degree of intergrowth and crystal orientations varied with changing deprotonating agent concentration, modulator concentration, and ligand:modulator ratios. Further studies will focus on achieving the same results on porous substrates.
ContributorsClose, Emily Charlotte (Author) / Mu, Bin (Thesis director) / Shan, Bohan (Committee member) / Chemical Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
Description
Community Action Research Experiences (CARE) partnered with Mission of Mercy, a faith-based nonprofit organization that provides free medical care services to uninsured and underinsured individuals throughout the Phoenix valley. A needs assessment was conducted on Mission of Mercy's patient population and data collected over a two month long period, in which 91 completed surveys were collected. Participants were between the ages of 18 to over 65 and were largely Hispanic/Latino, followed by White/Anglo and Black/African American. The results indicate that there is need for increased patient education which could be satisfied by implement an incentive program. A need for a program specific to high blood pressure was also found. Participants were interested in dental services being offered, a service that is currently not offered through the Arizona chapter of Mission of Mercy. The study also showed that respondents were satisfied with the level of care received at Mission of Mercy.
ContributorsMack, Ashley Marie (Author) / Bradley, Robert (Thesis director) / Dumka, Larry (Committee member) / School of Sustainability (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor) / T. Denny Sanford School of Social and Family Dynamics (Contributor)
Created2016-05