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Alternative Medicine Perspectives Among 1.5 Generation Indian American Immigrants

Description

This study evaluates medical pluralism among 1.5 generation Indian American immigrants. 1.5 generation Indian Americans (N=16) were surveyed regarding their engagement in complementary and alternative medical systems (CAM), how immigration affected that, and reasons for and for not continuing the use of CAM. Results indicated most 1.5 Indian immigrants currently…

This study evaluates medical pluralism among 1.5 generation Indian American immigrants. 1.5 generation Indian Americans (N=16) were surveyed regarding their engagement in complementary and alternative medical systems (CAM), how immigration affected that, and reasons for and for not continuing the use of CAM. Results indicated most 1.5 Indian immigrants currently engage in CAM, given that their parents also engage in CAM. The top reasons respondents indicated continued engagement in CAM was that it has no side effects and is preventative. Reasons for not practicing CAM included feeling out of place, not living with parents or not believing in CAM. After immigration, most participants decreased or stopped their engagement in CAM. More women than men continued to practice CAM after immigration. From the results, it was concluded that CAM is still important to 1.5 generation Indian immigrants.

ContributorsMurugesh, Subhiksha (Author) / Stotts, Rhian (Thesis director) / Mubayi, Anuj (Committee member) / School of Human Evolution & Social Change (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)

Created2020-05

A Sustainable Approach to Wastewater Treatment Using Microbial Fuel Cells with Peroxide Production

Description

Microbial fuel cells (MFCs) promote the sustainable conversion of organic matter in black water to electrical current, enabling the production of hydrogen peroxide (H2O2) while making waste water treatment energy neutral or positive. H2O2 is useful in remote locations such as U.S. military forward operating bases (FOBs) for on-site tertiary…

Microbial fuel cells (MFCs) promote the sustainable conversion of organic matter in black water to electrical current, enabling the production of hydrogen peroxide (H2O2) while making waste water treatment energy neutral or positive. H2O2 is useful in remote locations such as U.S. military forward operating bases (FOBs) for on-site tertiary water treatment or as a medical disinfectant, among many other uses. Various carbon-based catalysts and binders for use at the cathode of a an MFC for H2O2 production are explored using linear sweep voltammetry (LSV) and rotating ring-disk electrode (RRDE) techniques. The oxygen reduction reaction (ORR) at the cathode has slow kinetics at conditions present in the MFC, making it important to find a catalyst type and loading which promote a 2e- (rather than 4e-) reaction to maximize H2O2 formation. Using LSV methods, I compared the cathodic overpotentials associated with graphite and Vulcan carbon catalysts as well as Nafion and AS-4 binders. Vulcan carbon catalyst with Nafion binder produced the lowest overpotentials of any binder/catalyst combinations. Additionally, I determined that pH control may be required at the cathode due to large potential losses caused by hydroxide (OH-) concentration gradients. Furthermore, RRDE tests indicate that Vulcan carbon catalyst with a Nafion binder has a higher H2O2 production efficiency at lower catalyst loadings, but the trade-off is a greater potential loss due to higher activation energy. Therefore, an intermediate catalyst loading of 0.5 mg/cm2 Vulcan carbon with Nafion binder is recommended for the final MFC design. The chosen catalyst, binder, and loading will maximize H2O2 production, optimize MFC performance, and minimize the need for additional energy input into the system.

ContributorsStadie, Mikaela Johanna (Author) / Torres, Cesar (Thesis director) / Popat, Sudeep (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor)

Created2015-05

Development of an Ionic Liquid Electrolyte for Seismometer Applications

Description

Iodide-based ionic liquids have been widely employed as sources of iodide in electrolytes for applications utilizing the triiodide/iodide redox couple. While adding a low-viscosity solvent such as water to ionic liquids can greatly enhance their usefulness, mixtures of highly viscous iodide-containing ILs with water have never been studied. Thus, this…

Iodide-based ionic liquids have been widely employed as sources of iodide in electrolytes for applications utilizing the triiodide/iodide redox couple. While adding a low-viscosity solvent such as water to ionic liquids can greatly enhance their usefulness, mixtures of highly viscous iodide-containing ILs with water have never been studied. Thus, this paper investigates, for the first time, mixtures of water and the ionic liquid 1-butyl-3-methylimidazolium iodide ([BMIM][I]) through a combined experimental and molecular dynamics study. The density, melting point, viscosity and conductivity of these mixtures were measured experimentally. The composition region below 50% water by mole was found to be dramatically different from the region above 50% water, with trends in density and melting point differing before and after that point. Water was found to have a profound effect on viscosity and conductivity of the IL, and the effect of hydrogen bonding was discussed. Molecular dynamics simulations representing the same mixture compositions were performed. Molecular ordering was observed, as were changes in this ordering corresponding to water content. Molecular ordering was related to the experimentally measured mixture properties, providing a possible explanation for the two distinct composition regions identified by experiment.

ContributorsNgan, Miranda L (Author) / Dai, Lenore (Thesis director) / Nofen, Elizabeth (Committee member) / Barrett, The Honors College (Contributor) / Chemical Engineering Program (Contributor)

Created2015-05

Nitrate and Selenate Microbial Reduction in the Membrane Biofilm Reactor for Artificial Mining Wastewater

Description

Nitrate (NO3- ) and selenate (SeO42-) are common contaminants found in mining wastewater. Biological treatment has proved successful using bacteria capable of respiring NO3- into nitrogen gas and SeO42- into Se°. The Membrane Biofilm Reactor (MBfR) utilizes biofilm communities on the surface of hollow-fiber membranes to transform oxidized water…

Nitrate (NO3- ) and selenate (SeO42-) are common contaminants found in mining wastewater. Biological treatment has proved successful using bacteria capable of respiring NO3- into nitrogen gas and SeO42- into Se°. The Membrane Biofilm Reactor (MBfR) utilizes biofilm communities on the surface of hollow-fiber membranes to transform oxidized water contaminants into innocuous reduced products. For this project, I set up two MBfRs in a lead and lag configuration to reduce NO3- [input at ~40-45 mg NO3-N/L] and SeO42- [0.62 mg/L], while avoiding sulfate (SO42-) [~1600-1660 mg/L] reduction. Over the course of three experimental phases, I controlled two operating conditions: the applied hydrogen pressure and the total electron acceptor loading. NO3- in the lead MBfR showed average reductions of 50%, 94%, and 91% for phases I, II, and III, respectively. In the lag MBfR, NO3- was reduced by 40%, 96%, and 100% for phases I, II, and III. NO2- was formed in Stage I when NO3- was not reduced completely; nevertheless NO2- accumulation was absent for the remainder of operation. In the lead MBfR, SeO42- was reduced by 65%, 87%, and 50% for phases I, II, and III. In the lag MBfR, SeO42- was reduced 60%, 27%, and 23% for phases I, II, and III. SO42- was not reduced in either MBfR. Biofilm communities were composed of denitrifying bacteria Rhodocyclales and Burkholderiales, Dechloromonas along with the well-known SeO42--reducing Thauera were abundant genera in the biofilm communities. Although SO42- reduction was suppressed, sulfate-reducing bacteria were present in the biofilm. To optimize competition for electron donor and space in the biofilm, optimal operational conditions were hydrogen pressures of 26 and 7 psig and total electron acceptor loading of 3.8 and 3.4 g H2/m2 day for the lead and lag MBfR, respectively.

ContributorsMehta, Sanya Vipul (Author) / Rittmann, Bruce (Thesis director) / Ontiveros-Valencia, Aura (Committee member) / Chemical Engineering Program (Contributor) / School of International Letters and Cultures (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)

Created2016-05

Characterizing Buffers to Maximize Peroxide Production in the Cathode Chamber of Microbial Fuel Cells

Description

Microbial fuel cells (MFCs) facilitate the conversion of organic matter to electrical current to make the total energy in black water treatment neutral or positive and produce hydrogen peroxide to assist the reuse of gray water. This research focuses on wastewater treatment at the U.S. military forward operating bases (FOBs).…

Microbial fuel cells (MFCs) facilitate the conversion of organic matter to electrical current to make the total energy in black water treatment neutral or positive and produce hydrogen peroxide to assist the reuse of gray water. This research focuses on wastewater treatment at the U.S. military forward operating bases (FOBs). FOBs experience significant challenges with their wastewater treatment due to their isolation and dangers in transporting waste water and fresh water to and from the bases. Even though it is theoretically favorable to produce power in a MFC while treating black water, producing H2O2 is more useful and practical because it is a powerful cleaning agent that can reduce odor, disinfect, and aid in the treatment of gray water. Various acid forms of buffers were tested in the anode and cathode chamber to determine if the pH would lower in the cathode chamber while maintaining H2O2 efficiency, as well as to determine ion diffusion from the anode to the cathode via the membrane. For the catholyte experiments, phosphate and bicarbonate were tested as buffers while sodium chloride was the control. These experiments determined that the two buffers did not lower the pH. It was seen that the phosphate buffer reduced the H2O2 efficiency significantly while still staying at a high pH, while the bicarbonate buffer had the same efficiency as the NaCl control. For the anolyte experiments, it was shown that there was no diffusion of the buffers or MFC media across the membrane that would cause a decrease in the H2O2 production efficiency.

ContributorsThompson, Julia (Author) / Torres, Cesar (Thesis director) / Popat, Sudeep (Committee member) / Chemical Engineering Program (Contributor) / Barrett, The Honors College (Contributor)

Created2016-05

Continuous Hydrogen Peroxide Production using Microbial Electrochemical Cells

Description

Alternative ion exchange membranes for implementation in a peroxide production microbial electrochemical cel (PP-MEC) are explored through membrane stability tests with NaCl electrolyte and stabilizer EDTA at varying operational pHs. PP-MEC performance parameters \u2014 H2O2 concentration, current density, coulombic efficiency and power input required \u2014 are optimized over a 7…

Alternative ion exchange membranes for implementation in a peroxide production microbial electrochemical cel (PP-MEC) are explored through membrane stability tests with NaCl electrolyte and stabilizer EDTA at varying operational pHs. PP-MEC performance parameters \u2014 H2O2 concentration, current density, coulombic efficiency and power input required \u2014 are optimized over a 7 month continuous operation period based on their response to changes in HRT, EDTA concentration, air flow rate and electrolyte. I found that EDTA was compatible for use with the membranes. I also determined that AMI membranes were preferable to CMI and FAA because it was consistently stable and maintained its structural integrity. Still, I suggest testing more membranes because the AMI degraded in continuous operation. The PP-MEC produced up to 0.38 wt% H2O2, enough to perform water treatment through the Fenton process and significantly greater than the 0.13 wt% batch PP-MEC tests by previous researchers. It ran at > 0.20 W-hr/g H2O2 power input, ~ three orders of magnitude less than what is required for the anthraquinone process. I recommend high HRT and EDTA concentration while running the PP- MEC to increase H2O2 concentration, but low HRT and low EDTA concentration to decrease power input required. I recommend NaCl electrolyte but suggest testing new electrolytes that may control pH without degrading H2O2. I determined that air flow rate has no effect on PP-MEC operation. These recommendations should optimize PP-MEC operation based on its application.

ContributorsChowdhury, Nadratun Naeem (Author) / Torres, Cesar (Thesis director) / Popat, Sudeep (Committee member) / Chemical Engineering Program (Contributor) / Barrett, The Honors College (Contributor)

Created2016-05

Risk Factors for Perceived Increases in Smoking Due to COVID-19

Description

Due to the COVID-19 pandemic, declared in March of 2020, there have been many lifestyle changes which have likely influenced tobacco smoking behavior. Such lifestyle changes include lockdowns, stay at home orders, reduction in social cues related to smoking, increased stress, and boredom among other things. This study utilized a…

Due to the COVID-19 pandemic, declared in March of 2020, there have been many lifestyle changes which have likely influenced tobacco smoking behavior. Such lifestyle changes include lockdowns, stay at home orders, reduction in social cues related to smoking, increased stress, and boredom among other things. This study utilized a cross-sectional survey which looked into these behaviors, primarily perceived risk to COVID-19, and determined if there is an association between perceived risk and education level/race. Education level is a proxy for income and material resources, therefore making it more likely that people with lower levels of education have fewer resources and higher perceived risk to negative effects of COVID-19. Additionally, people of color are often marginalized in the medical community along with being the target of heavy advertising by tobacco companies which have likely impacted risk to COVID-19 as well.

ContributorsLodha, Pratishtha (Author) / Leischow, J. Scott (Thesis director) / Pearson, Jennifer (Committee member) / School of Life Sciences (Contributor) / School of Human Evolution & Social Change (Contributor) / Barrett, The Honors College (Contributor)

Created2021-05

A Survey for Improving ASU's Ambulatory Healthcare Services: Recommendations for Improving Overall Healthcare Delivery

Description

In January of 2020, the first cases of COVID-19 were recorded in the United States with one of them being an Arizona State University student. Since these initial cases, over 2.4 million more cases have been recorded in Arizona alone. As of March of 2020, Arizona State University Ambulatory Health…

In January of 2020, the first cases of COVID-19 were recorded in the United States with one of them being an Arizona State University student. Since these initial cases, over 2.4 million more cases have been recorded in Arizona alone. As of March of 2020, Arizona State University Ambulatory Health Services moved to adjust their healthcare delivery methods in response to the COVID-19 pandemic. We aim to identify areas of ASU Ambulatory Health Services as of March of 2020 that need improvement based on an anonymous survey carried out among ASU students, faculty, and staff. The survey was created through Survey Monkey and consisted of 20 questions about the participant’s experience with ASU’s Ambulatory Health Services; while the survey was being created, a literature review was being conducted concerning ASU’s health care delivery in the past and the health care delivery in the greater Maricopa County region. The overall consensus of the 54 participants who took the survey was that approximately 55% of participants had an overall very satisfactory experience through ASU Ambulatory Health Services with a net promoter score of 87% satisfaction and approximately 47% of participants were very likely to recommend ASU Ambulatory Health Services with a net promoter score of about 79%. Most participants reported overall satisfactory experiences but when asked for further commentary they provided more specific criticisms of their experience that could be improved. The specific frustrations that were mentioned were issues with insurance, lack of awareness with available services, instructions on updated regulations and scheduling, and issues with patients’ visits being logged into their medical records. We recommend that ASU Ambulatory Health Services improve in these areas highlighted by the survey answers; as most of these issues are results from communication issues between ASU Ambulatory Health Services and the public, we suggest better means of communication between the public and the health services.

ContributorsGustafson, Annika (Author) / Ruiz, Odalys (Co-author) / Panossian, Noelle (Co-author) / Cortese, Denis (Thesis director) / Will, Kristen (Committee member) / Barrett, The Honors College (Contributor) / School of Human Evolution & Social Change (Contributor) / School of Life Sciences (Contributor)

Created2023-05

A Survey for Improving ASU's Ambulatory Healthcare Services: Recommendations for Improving Overall Healthcare Delivery

Description

In January of 2020, the first cases of COVID-19 were recorded in the United States with one of them being an Arizona State University student. Since these initial cases, over 2.4 million more cases have been recorded in Arizona alone. As of March of 2020, Arizona State University Ambulatory Health…

In January of 2020, the first cases of COVID-19 were recorded in the United States with one of them being an Arizona State University student. Since these initial cases, over 2.4 million more cases have been recorded in Arizona alone. As of March of 2020, Arizona State University Ambulatory Health Services moved to adjust their healthcare delivery methods in response to the COVID-19 pandemic. We aim to identify areas of ASU Ambulatory Health Services as of March of 2020 that need improvement based on an anonymous survey carried out among ASU students, faculty, and staff. The survey was created through Survey Monkey and consisted of 20 questions about the participant’s experience with ASU’s Ambulatory Health Services; while the survey was being created, a literature review was being conducted concerning ASU’s health care delivery in the past and the health care delivery in the greater Maricopa County region. The overall consensus of the 54 participants who took the survey was that approximately 55% of participants had an overall very satisfactory experience through ASU Ambulatory Health Services with a net promoter score of 87% satisfaction and approximately 47% of participants were very likely to recommend ASU Ambulatory Health Services with a net promoter score of about 79%. Most participants reported overall satisfactory experiences but when asked for further commentary they provided more specific criticisms of their experience that could be improved. The specific frustrations that were mentioned were issues with insurance, lack of awareness with available services, instructions on updated regulations and scheduling, and issues with patients’ visits being logged into their medical records. We recommend that ASU Ambulatory Health Services improve in these areas highlighted by the survey answers; as most of these issues are results from communication issues between ASU Ambulatory Health Services and the public, we suggest better means of communication between the public and the health services.

ContributorsRuiz, Odalys (Author) / Panossian, Noelle (Co-author) / Gustafson, Annika (Co-author) / Cortese, Denis (Thesis director) / Will, Kristen (Committee member) / Barrett, The Honors College (Contributor) / School of Life Sciences (Contributor) / School of Human Evolution & Social Change (Contributor)

Created2023-05

A Survey for Improving ASU’s Ambulatory Healthcare Services: Recommendations for Improving Overall Healthcare Delivery

Description

In January of 2020, the first cases of COVID-19 were recorded in the United States with one of them being an Arizona State University student. Since these initial cases, over 2.4 million more cases have been recorded in Arizona alone. As of March of 2020, Arizona State University Ambulatory Health…

In January of 2020, the first cases of COVID-19 were recorded in the United States with one of them being an Arizona State University student. Since these initial cases, over 2.4 million more cases have been recorded in Arizona alone. As of March of 2020, Arizona State University Ambulatory Health Services moved to adjust their healthcare delivery methods in response to the COVID-19 pandemic. We aim to identify areas of ASU Ambulatory Health Services as of March of 2020 that need improvement based on an anonymous survey carried out among ASU students, faculty, and staff. The survey was created through Survey Monkey and consisted of 20 questions about the participant’s experience with ASU’s Ambulatory Health Services; while the survey was being created, a literature review was being conducted concerning ASU’s health care delivery in the past and the health care delivery in the greater Maricopa County region. The overall consensus of the 54 participants who took the survey was that approximately 55% of participants had an overall very satisfactory experience through ASU Ambulatory Health Services with a net promoter score of 87% satisfaction and approximately 47% of participants were very likely to recommend ASU Ambulatory Health Services with a net promoter score of about 79%. Most participants reported overall satisfactory experiences but when asked for further commentary they provided more specific criticisms of their experience that could be improved. The specific frustrations that were mentioned were issues with insurance, lack of awareness with available services, instructions on updated regulations and scheduling, and issues with patients’ visits being logged into their medical records. We recommend that ASU Ambulatory Health Services improve in these areas highlighted by the survey answers; as most of these issues are results from communication issues between ASU Ambulatory Health Services and the public, we suggest better means of communication between the public and the health services.

ContributorsPanossian, Noelle (Author) / Gustafson, Annika (Co-author) / Ruiz, Odalys (Co-author) / Cortese, Denis (Thesis director) / Will, Kristin (Committee member) / Barrett, The Honors College (Contributor) / School of Human Evolution & Social Change (Contributor) / School of Life Sciences (Contributor)

Created2023-05

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