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- Title
- Effect of suspect's gender on police use of physical force
- Creator
- Ishola, Oluwatobi Taiwo
- Date
- 2017
- Collection
- Electronic Theses & Dissertations
- Description
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"Police use of force has received much research attention as researchers attempt to explain various predictors of this phenomenon. This topic is of great interest to police practitioners, policy makers, researchers, scholars, and criminal justice students. Several studies have examined various predictors of this behavior, including officer education, race, experience, age, and sex. However, most of these studies focused on either the officers' or suspect's sex, while research on the interplay...
Show more"Police use of force has received much research attention as researchers attempt to explain various predictors of this phenomenon. This topic is of great interest to police practitioners, policy makers, researchers, scholars, and criminal justice students. Several studies have examined various predictors of this behavior, including officer education, race, experience, age, and sex. However, most of these studies focused on either the officers' or suspect's sex, while research on the interplay between suspect's sex and officer sex as a predictor of police use of force is lacking. Drawing on criminal threat theory and research on chivalry, this study will examine how the interplay between officer and suspect sex influences the likelihood and severity of police use of physical force. Further, given the influence of social norms on chivalry, the study will further investigate whether the presence of bystanders moderates the influence of officer and suspect sex on use of physical force. The study is based on data from the 1996-1997 (ICPSR 3172) study titled 'Understanding the use of force by and against the police in six jurisdictions in the United States'."--Page ii.
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- Title
- Intra-household human capital measures and child and maternal health : evidence from Zambia
- Creator
- Faas, Simone Margaret
- Date
- 2020
- Collection
- Electronic Theses & Dissertations
- Description
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Zambia has one of the highest rates of childhood stunting in the world. Traditional health production functions model that good health quality for young children is dependent on the necessary inputs of parental influences, including parental health, parental education, and household wealth. Using data from a Feed the Future survey from rural Zambia and the Women's Empowerment in Agriculture Index, I examine the relationship between several measures of spousal human capital and the health...
Show moreZambia has one of the highest rates of childhood stunting in the world. Traditional health production functions model that good health quality for young children is dependent on the necessary inputs of parental influences, including parental health, parental education, and household wealth. Using data from a Feed the Future survey from rural Zambia and the Women's Empowerment in Agriculture Index, I examine the relationship between several measures of spousal human capital and the health outcomes of young children and women of child-bearing age. I find the ability to read and write of both spouses is highly correlated with positive changes in children's and women's health outcomes. Literacy and education campaigns which target both boys and girls should be heavily emphasized among rural and disadvantaged communities in southern Africa, as men's literacy and education as well as women's literacy are both important to improving future health outcomes for children and adults.
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- Title
- The power paradox : intimacy and masculinity in American football
- Creator
- James, Riley
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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This thesis examines how intimacy-both physical and emotional-in American football affects masculinity. This research is important because it questions the role of masculinity in a sport considered the most popular in terms of participation, attendance at games, and broadcast viewership (Miaschi, 2017). Theories such as hegemonic masculinity theory and inclusive masculinity theory are used to explain how masculinity is constructed through football. Using naturalistic observation, interviews...
Show moreThis thesis examines how intimacy-both physical and emotional-in American football affects masculinity. This research is important because it questions the role of masculinity in a sport considered the most popular in terms of participation, attendance at games, and broadcast viewership (Miaschi, 2017). Theories such as hegemonic masculinity theory and inclusive masculinity theory are used to explain how masculinity is constructed through football. Using naturalistic observation, interviews with seven Michigan State University (MSU) football players, and an analysis of photographs, I found these football players have more intimate relationships with other players on their team when compared to relationships they have with other men outside their sport. Some surprises I found during interviews was that injury during football is not treated as harshly as it once was and one player views being emotional as an important part of being a man. I visually present the intimate aspects of football I witnessed in photographs I created as an employee of Big Ten Network during MSU football games during the 2017 and 2018 seasons, and I offer my analysis of intimacy and masculinity in this sport that includes and explains the meaning behind the power paradox.
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- Title
- Quality of life of women with breast cancer in Yaunde, Cameroon
- Creator
- Kunyangna, Prudence
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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This study explored the association between sociodemographic and medical factors and the quality of life of breast cancer patients in Yaunde. A total of 297 women with breast cancer at the Department of Medical Oncology General Hospital in Yaunde, were enrolled in the study. Participants completed the FACT-B instrument and a questionnaire. The medical history of cases was abstracted from the hospital records.In adjusted models, total FACT-G scores were lower for women who; were 2265 45 years,...
Show moreThis study explored the association between sociodemographic and medical factors and the quality of life of breast cancer patients in Yaunde. A total of 297 women with breast cancer at the Department of Medical Oncology General Hospital in Yaunde, were enrolled in the study. Participants completed the FACT-B instrument and a questionnaire. The medical history of cases was abstracted from the hospital records.In adjusted models, total FACT-G scores were lower for women who; were 2265 45 years, had stage II, III and IV disease and higher for women who; had an occupation, had monthly household incomes above 50,000 CFA/month, lived with their husband/boyfriend and, who lived with their families. Total FACT-B scores were lower for women 2265 45 years. Total FACT-B scores were higher for women who; had an occupation, had a monthly household income above 50,000 CFA/month, lived with their husband/boyfriend and, who lived with their family. FACTB-TOI scores were lower for women who; were 2265 45 years, had stage II, III and IV disease compared to stage 0/I and higher for women who; had an occupation, had monthly household incomes over 50,000 CFA/month, lived with their husband/boyfriend and, who lived with families. Our results suggest that clinicians should pay attention to the quality of life of African breast cancer case who are older (> 45 years), live alone, not involved in any type of occupation, have lower household income levels and are diagnosed with advanced-stage disease.
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- Title
- The needs of nutrition and physical activity education for caregivers of Michigan migrant and seasonal farmworker children
- Creator
- Feighner, Amanda Rose
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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"Migrant and seasonal farmworker (MSFW) children have high rates of overweight and obesity, which can lead to health issues through childhood and adulthood. Caregivers of young children have the ability to influence environment and role model behaviors related to nutrition and physical activity for children. Migrant and Seasonal Head Start (MSHS) programs serve young MSFW children by providing a venue for nutrition and physical activity promotion for extended hours with the ultimate goal of...
Show more"Migrant and seasonal farmworker (MSFW) children have high rates of overweight and obesity, which can lead to health issues through childhood and adulthood. Caregivers of young children have the ability to influence environment and role model behaviors related to nutrition and physical activity for children. Migrant and Seasonal Head Start (MSHS) programs serve young MSFW children by providing a venue for nutrition and physical activity promotion for extended hours with the ultimate goal of helping at-risk children succeed. We also reported high prevalence of obesity and overweight among MSHS children's caregivers, i.e., parents and MSHS staff. This situation provides important educational opportunities to apply social cognitive theory and policy, systems, and environmental change approaches in order to meet the needs of caregivers (parents and MSHS staff) who can become competent to practice healthy lifestyles for family and MSHS children. In developing nutrition and physical activity education programs targeting caregivers of Michigan MSHS children, this study aimed to identify the perceived needs for content, facilitators and barriers to participating such programs. Of 17 total MSHS centers in Michigan, five of the largest sites were selected for recruitment of MSHS program parents and staff. Twelve focus groups were conducted between July and September 2016 with staff (n = 27), parents (n = 33), and MSHS center directors (n = 13). Focus groups with the consented parents were conducted at MSHS sites in Spanish, with staff in English, and with directors at a central office meeting. Using censuses coding among three researchers, key themes were identified. Quantitative surveys were conducted in parallel to this qualitative study with parents (n = 135) at nine centers and staff (n = 280) at all 17 MSHS centers in Michigan between July-August 2016.We found that desired content for programs included basic nutrition knowledge, cooking and meal planning, physical activity, and budgeting. Facilitators and barriers to participation in a new nutrition and physical activity program included program structure, financial support, education format, and motivation factors. Nutrition education interventions for parents and staff need to be combined with efforts to improve their children's health. We generated key information that can be used in planning future interventions for caregivers of MSHS children. Caregivers who are competent in nutrition and physical activity knowledge may be able to influence the environment and behaviors of their children and MSHS community to promote healthy lifestyles."--Page ii.
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- Title
- Informal settlements and the geography of vulnerability - a spatial case study of Hidalgo County, Texas
- Creator
- Huang, Huiqing (Graduate of Michigan State University)
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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"More than 2,000 colonias and more than 800 model subdivisions have been developed in unincorporated areas across the state of Texas. Since the 1980s, a substantial body of research has documented the poor housing conditions and inadequate infrastructure in these informal settlements in the United States. However, very little research has focused on the geographic vulnerability, such as exposure to environmental risks and the lack of access to amenities. This study adopts two Geographic...
Show more"More than 2,000 colonias and more than 800 model subdivisions have been developed in unincorporated areas across the state of Texas. Since the 1980s, a substantial body of research has documented the poor housing conditions and inadequate infrastructure in these informal settlements in the United States. However, very little research has focused on the geographic vulnerability, such as exposure to environmental risks and the lack of access to amenities. This study adopts two Geographic Information System (GIS) methods (overlay analysis and proximity analysis) to investigate the vulnerability of informal settlements in Hidalgo County, Texas. This research finds that informal settlements experience more spatial vulnerability than formal neighborhoods as they are further away from the urban center, the job center, and other critical amenities. However, the prevalence of property crime in informal settlements is significantly lower. Within the informal settlements, colonias are still in need of basic infrastructures. Besides, this study finds that state-designated colonias are less vulnerable than newer model subdivisions that have developed largely without acknowledgment by the state.These findings suggest the need for state and local governments 1) to make more targeted investments to provide water and wastewater service; 2) to develop public transportation system; 3) to reduce vulnerability by expanding access to amenities or services and 4) to partner with private entities and communities themselves to address the needs in informal settlements."--Page ii.
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- Title
- A geometry based approach towards improving the structural integrity of single-walled ti6al4v alloy features fabricated using laser directed energy deposition additive manufacturing
- Creator
- Thakkar, Darshan
- Date
- 2020
- Collection
- Electronic Theses & Dissertations
- Description
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Presence of sharp turns in the deposition tool-path for Additive Manufacturing (AM) introduces heterogeneity in built-part thereby affecting structural integrity. Slower deposition speeds around turn points or corner leads to defects such as increased wall thickness, porosity, lack of fusion voids, and cracks. Such defects can be minimized by either by optimizing processing parameters or through geometry optimization. Optimizing processing parameters requires extensive and expensive set of...
Show morePresence of sharp turns in the deposition tool-path for Additive Manufacturing (AM) introduces heterogeneity in built-part thereby affecting structural integrity. Slower deposition speeds around turn points or corner leads to defects such as increased wall thickness, porosity, lack of fusion voids, and cracks. Such defects can be minimized by either by optimizing processing parameters or through geometry optimization. Optimizing processing parameters requires extensive and expensive set of experiments. Furthermore, it is challenging to accurately model the process and have closed loop controls because of the impracticality to include all process parameters. This work focuses on optimizing the geometry instead of process parameters to fabricate components with minimum defects. In this work, single walled cubical Ti6Al4V shells with sharp and rounded corners were fabricated using laser Directed Energy Deposition (DED). Cross sectional and build plane coupons were extracted from each sample for microstructure and defect analysis. Results show that inclusion of rounded corners leads to consistent deposition speeds. Defect density measurements, using optical microscope, show reduction of defects from 6.8 ± 0.35% to a virtually defect-free structure for samples with rounded corners. Results indicate that consistent deposition speed around rounded corners improved homogeneity in the resulting microstructure.
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- Title
- Cultural relativity in conflict resolution : cross-cultural and intra-cultural differences
- Creator
- Somaraju, Ajay
- Date
- 2020
- Collection
- Electronic Theses & Dissertations
- Description
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Although there is an extensive literature on the relationship between cultural values and conflict resolution preferences, there is less research on the role of cultural worldviews in predicting these values, and how cultural values interplay with ethical positions when resolving conflict. The purpose of this study was to examine the cross-cultural pattern of relationships among idealistic and relativistic thinking, cultural values, and conflict resolution preferences. Specifically, the...
Show moreAlthough there is an extensive literature on the relationship between cultural values and conflict resolution preferences, there is less research on the role of cultural worldviews in predicting these values, and how cultural values interplay with ethical positions when resolving conflict. The purpose of this study was to examine the cross-cultural pattern of relationships among idealistic and relativistic thinking, cultural values, and conflict resolution preferences. Specifically, the current study examined Aristotelian, Hindu, and Confucian cultural subgroups to identify cross-cultural and intra-cultural differences. Results suggested that individuals' ethical positions predicted their cultural values, which in turn predicted their conflict resolution preferences. Moreover, results suggested that there was differential prediction between individualist and relational (i.e., Aristotelian vs. Hindu and Confucian) subgroups and within relational subgroups (i.e., Hindu vs Confucian).
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- Title
- A systematic evaluation of computational models of phonotactics
- Creator
- Sarver, Isaac
- Date
- 2020
- Collection
- Electronic Theses & Dissertations
- Description
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In this thesis, recent computational models of phonotactics are discussed and evaluated and two new models are implemented. Prior phonotactic modeling, motivated by gradient acceptability judgments in nonce word judgment tasks (Albright 2009), claim that phonotactic grammaticality is gradient, and these models are evaluated by their ability to judge nonce words with scores that correlate with human acceptability judgments. Gorman (2013) argues that these gradient models do not account for the...
Show moreIn this thesis, recent computational models of phonotactics are discussed and evaluated and two new models are implemented. Prior phonotactic modeling, motivated by gradient acceptability judgments in nonce word judgment tasks (Albright 2009), claim that phonotactic grammaticality is gradient, and these models are evaluated by their ability to judge nonce words with scores that correlate with human acceptability judgments. Gorman (2013) argues that these gradient models do not account for the facts sufficiently and claims phonotactic grammaticality is categorical. In this thesis, the account of Gorman (2013) is implemented as well as a prominent gradient model from Hayes and Wilson (2008) and compared with the performance of two machine learning models (a support vector machine and a recurrent neural network), with all models trained on a corpus of English onsets. Results in this thesis show that the computational models are unable to correlate with human judgment data from Scholes (1966) as well as a categorical prediction of acceptability based on whether a sequence is attested in the lexicon or not, and that these models rely on assumptions which when challenged show that the models do not convincingly capture the gradience of the human judgment data used for evaluation.
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- Title
- Alignment between intensity of risk and level of collaboration in partnered architecture, engineering and construction projects : a quantitative approach to test impacts on project performance outcomes
- Creator
- Kalbhor, Harshavardhan Vijay
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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Risk is a typical characteristic of Architecture, Engineering, and Construction (AEC) projects due to their inherent complexities. The intensity of such risk is influenced by factors such as the dynamic nature of project elements (e.g., fragmented multi-disciplinary project teams), interactions among these elements, and lack of clear project goals. Project management theory and practice both endorse that as the intensity of risk in a project increases, a higher level of collaboration among...
Show moreRisk is a typical characteristic of Architecture, Engineering, and Construction (AEC) projects due to their inherent complexities. The intensity of such risk is influenced by factors such as the dynamic nature of project elements (e.g., fragmented multi-disciplinary project teams), interactions among these elements, and lack of clear project goals. Project management theory and practice both endorse that as the intensity of risk in a project increases, a higher level of collaboration among the multi-disciplinary project teams is desirable in order to achieve optimal project performance outcomes.To facilitate higher or improved level of collaboration among project teams, the AEC industry utilizes innovative project delivery methods (e.g., IPD), technologies (e.g., BIM), and practices (e.g., Lean Construction). Project Partnering is one such project delivery practice; adopting which, two or more organizations commit to harboring an environment of collaboration (e.g., effective communication, shared vision, goal alignment, trust) in a structured approach, with the intention of achieving optimum shared project performance goals (e.g., reduced costs, delays).Although both researchers and practitioners commonly recognize that collaboration is an effective risk management strategy, a theoretical gap exists in providing empirical reinforcement supporting this assertion. A part of this gap is due to the lack of a structured framework for investigating collaboration. Partnering fulfills this shortcoming and provides a structured framework to study collaboration analytically. Thus, partnered AEC projects are the focus and unit of analysis for this research.In addition, existing Partnering literature is largely qualitative and presents conceptual models, potential benefits to adopting Partnering, barriers to its adoption, critical success factors, and performance measurement and evaluation methods. Quantitative research in this domain is limited and has studied projects either coming largely from a single source of ownership (e.g., DOTs) or a particular project type (e.g., horizontal infrastructure projects) at a time. There is a need for evidence-based quantitative research that identifies specific factors linked to partnered-project success using data from a large and diversified sample of projects.Thus, the need for an empirical assessment of the association (denoted by the variable fit) between risk (specifically its intensity) and level of collaboration (via partnering practices in this study), and its impact on project performance prompted the undertaking of this study. Due to lack of pre-defined terminology to capture the association between risk intensity and partnering level, it was denoted in this study via an introduction of the variable 'fit'. The goal of the study is to investigate partnered AEC projects for the impact of the fit between their intensity of risk and adopted partnering level on their performance outcomes (e.g., cost, schedule). Accordingly, this study aims to answer the following research question: 'In partnered AEC projects, does the fit between risk intensity and level of partnering correlate with performance outcomes?' The hypothesis developed by the researcher is that 'In a partnered project, better the fit between the intensity of risk and adopted partnering level, better is its performance.' This study used an archival data-set containing details of 127 partnered projects from the United States completed between 2010 and 2018. Literature study followed by an exploratory data analysis was conducted to develop models to determine constructs of interest - risk intensity, partnering level and performance evaluation metrics, from AEC project characteristics. The models were validated via a survey; and are one of the outcomes of this study. Further, via content analysis, quantitative measures of these constructs were systematically coded from project details in the data set.The hypothesis of this study was tested separately for different performance outcome metrics (e.g., cost growth, schedule growth) via a quantitative approach of unsupervised statistical learning tests such as the Kruskal-Wallis test and the Dunn Test for comparison of performance metric data as samples across the fit categories. The deliverable of this study are tools or models for risk intensity assessment and simultaneous determination of recommended level of partnering. The study was able to contribute to the body of knowledge of risk management via collaboration by providing empirical reinforcement to the association or lack of thereof between risk, collaboration and performance. Lastly, this study provides guidelines for best practices in Partnering contributing to effective risk management on AEC projects.
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- Title
- Evaluation of changes in Sculpin populations in the Great Lakes associated with shifts in benthic species composition
- Creator
- Volkel, Shea Lynn
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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In the Great Lakes, slimy sculpins (Cottus cognatus) and deepwater sculpins (Myoxocephalus thompsonii) were historically abundant native deepwater fishes that served as important prey items for native piscivores (e.g., lake trout, Salvelinus namaycush, and burbot, Lota lota). However, both of these species have been declining in abundance and biomass recent decades according to USGS trawl surveys. The timing of these declines in sculpin biomass and abundance coincides with several ecological...
Show moreIn the Great Lakes, slimy sculpins (Cottus cognatus) and deepwater sculpins (Myoxocephalus thompsonii) were historically abundant native deepwater fishes that served as important prey items for native piscivores (e.g., lake trout, Salvelinus namaycush, and burbot, Lota lota). However, both of these species have been declining in abundance and biomass recent decades according to USGS trawl surveys. The timing of these declines in sculpin biomass and abundance coincides with several ecological disturbances that have occurred throughout the Great Lakes, including the invasions of dreissenid mussels (zebra, Dreissena polymorpha; quagga, D. bugensis) and the aggressive round goby (Neogobius melanostomus), along with the collapse of Diporeia (formerly one of the most important prey items for these sculpin species). In this dissertation, we provide a comprehensive review of the state of knowledge and investigate the effect of these ecological disturbances on slimy and deepwater sculpins in the Great Lakes. We predicted that these ecological disturbances have negatively affected both slimy and deepwater sculpin populations, particularly slimy sculpins, which we could observe through changes in their spatial (depth) distribution patterns (e.g., shifting deeper to avoid round goby) and body condition (e.g., lower body condition associated with ecological disturbance). Our results indicate that slimy sculpins may be more vulnerable to these ecological disturbances than deepwater sculpins, but data limitations prevent us from offering conclusive causal mechanisms for sculpin spatial and body condition patterns. Both our review and analyses implicate that we need to gain a better understanding of sculpins in order to restore these species in this system.
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- Title
- The effect of quality signaling on willingness to pay for potato planting material : a research study in Kenya
- Creator
- Bartle, Brian William
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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Kenyan farmers can potentially access potato seeds from three distinct seed systems that provide different levels of quality assurance-the formal system (i.e., certified seed), the semi-formal system (i.e., clean seed) and the informal system (i.e., ware potato, own or neighbor's saved seed). However, similar to other vegetatively propagated crops, adoption of quality seeds (i.e., certified or clean seed) is strikingly low in the Kenyan potato sector. This inhibits the development of a robust...
Show moreKenyan farmers can potentially access potato seeds from three distinct seed systems that provide different levels of quality assurance-the formal system (i.e., certified seed), the semi-formal system (i.e., clean seed) and the informal system (i.e., ware potato, own or neighbor's saved seed). However, similar to other vegetatively propagated crops, adoption of quality seeds (i.e., certified or clean seed) is strikingly low in the Kenyan potato sector. This inhibits the development of a robust and commercially viable potato sector and severely limits Kenya's potential to increase potato production while combating the spread of pathogens. This study uses auction experiments to measure farmers' willingness to pay for seed products representing the three seed systems and evaluates the effectiveness of each seed system in communicating the assurance of quality and the effect of trust of the seed source on farmer's valuation of seed products. The study contributes to the literature by exploring the role of information, branding, and reputation as quality signals to curtail the effects of information asymmetry in credence and experience attributes of quality seed. Results show that potato farmers in Kenya value the formal seed system the highest, followed by the semiformal and the informal systems. However, the formal seed system has not been effective in signaling quality through certification. In terms of the branding and reputation effect, the parastatal ADC Molo and some clean seed producers in selected counties showed strong signs of quality signaling through branding. What this means for the potato seed system in Kenya and beyond is that farmers do trust institutions (i.e., KEPHIS certification) as well as branding and reputation, but still remain hesitant to engage in the formal and semiformal seed systems due to other exogenous and endogenous factors.
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- Title
- The use of waste from orange juicing for food packaging applications
- Creator
- Fehlberg, Jack Alan
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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Utilization of orange juicing waste (OP) as a filler material within a polymer matrix can add value to this agricultural waste and reduce dependency on non-renewable resources. This study aims to study the impact of OP filler's physical characteristics including size, loading, and retention or removal of zest on the properties of linear low density polyethylene (LLDPE) and to produce LLDPE/OP films by blown-film extrusion. LLDPE/OP sheets with zest exhibited decreased thermal stability,...
Show moreUtilization of orange juicing waste (OP) as a filler material within a polymer matrix can add value to this agricultural waste and reduce dependency on non-renewable resources. This study aims to study the impact of OP filler's physical characteristics including size, loading, and retention or removal of zest on the properties of linear low density polyethylene (LLDPE) and to produce LLDPE/OP films by blown-film extrusion. LLDPE/OP sheets with zest exhibited decreased thermal stability, larger OP agglomerates, worsened dispersion, and darker yellower colors and can act as UV- and light-absorbers. Larger OP particles increased air bubble formation, decreased mechanical properties, worsen dispersion, and produced darker yellower composites. Higher OP loadings resulted in LLDPE/OP composite sheets that have darker yellower color, decreased mechanical properties, and increased the size of OP agglomerates, as well as improved distribution and worsened dispersion. LLDPE/OP sheets that had properties most like neat LLDPE were sheets containing OP without zest and smaller particles sizes. This OP was used to determine maximum OP loading for LLDPE/OP films produced by blown-film extrusion. The LLDPE/OP films were subject to a sensory similarity triangle test and a comparison of package acceptance when different OP loading was used. This study found no difference in sensory qualities of bread when packaged in LLDPE/OP to neat LLDPE films. OP loading did not influence consumer perceptions of overall liking, appearance, surface roughness, color, or smell when LLDPE/OP films with 5 and 11.5% OP loadings were compared. This study demonstrates that OP waste can be converted and physically modified into a usable filler for plastic films for food packaging applications without altering the quality of the food product.
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- Title
- Lake Michigan stakeholders' perceptions of coastal risk and motivations for coastal habitat stewardship
- Creator
- Whyte, Julia H.
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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Lake Michigan communities have already begun to feel the effects of climate change, and research suggests that these areas will experience many phenomena that will negatively impact the ecosystem and human livelihoods (GLISA, 2014). While agencies exist to generally guide coastal management, Michigan lacks institutions that establish regulations or requirements for managing the Great Lakes coastal region (Norton et al., 2018). As a result, Michigan's coastal communities have the...
Show moreLake Michigan communities have already begun to feel the effects of climate change, and research suggests that these areas will experience many phenomena that will negatively impact the ecosystem and human livelihoods (GLISA, 2014). While agencies exist to generally guide coastal management, Michigan lacks institutions that establish regulations or requirements for managing the Great Lakes coastal region (Norton et al., 2018). As a result, Michigan's coastal communities have the responsibility of preparing for an uncertain future under climate change. I compared risk perceptions between different resident groups, as well as between different communities, varying by county, size, and presence of a previous coastal resiliency program. I used a four-wave tailored design for data collection (Dillman, 2009) in six Michigan communities along Lake Michigan from December 2018 to April 2019. I found communities with resiliency programs are less concerned about coastal risk than other communities and lake residents are more concerned about coastal risk than municipal officials. I also found that previous experience with environmental risk and gender are predictors of concern about coastal risk. I suggest that future outreach materials focus on lake residents and that community-engaged work to create more robust coastal resilience plans are beneficial to mitigating risk perceptions. The results from this research can also be used to inform future planning and zoning policies, as well as other coastal resilience policies.
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- Title
- Suitability of the RSP2pro software-defined radio for precompliance radiated emissions testing
- Creator
- Stevers, William, II
- Date
- 2020
- Collection
- Electronic Theses & Dissertations
- Description
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This thesis demonstrates the ability to use an existing software-defined radio for accurate RF measurements related to the precompliance testing of radiated emissions. The software-defined radio chosen for this work is the SDRplay Radio Spectrum Processor 2 Pro (RSP2pro). The RSP2pro was chosen because of its ability to provide absolute received power measurement capabilities at a price much lower than a traditional spectrum analyzer.The absolute power level and frequency performance of the...
Show moreThis thesis demonstrates the ability to use an existing software-defined radio for accurate RF measurements related to the precompliance testing of radiated emissions. The software-defined radio chosen for this work is the SDRplay Radio Spectrum Processor 2 Pro (RSP2pro). The RSP2pro was chosen because of its ability to provide absolute received power measurement capabilities at a price much lower than a traditional spectrum analyzer.The absolute power level and frequency performance of the RSP2pro has been characterized by direct comparison with an electromagnetic compatibility analyzer and the results are shown. A method for automating measurements taken with the RSP2pro companion software is described. The RSP2pro is also used to perform precompliance radiated emissions tests with an electromagnetic compatibility antenna and the results are discussed. Throughout this work a sample of three RSP2pro units is compared and variations in measurements across the three units is examined. A common very-high frequency "rabbit ear" television antenna and an ultra-high frequency "bowtie" television antenna are used with the RSP2pro to create a complete radiated emissions precompliance test setup. A procedure for characterizing these antennas and determining their suitability for radiated emissions precompliance testing is also described. The RSP2pro test setup for measuring radiated emissions is compared to a traditional precompliance test setup consisting of an electromagnetic compatibility spectrum analyzer and an electromagnetic compatibility antenna. This comparison includes a discussion of the relative cost, measurement accuracy, and overall convenience of using each test setup.
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- Title
- CD2 regulates pathogenesis of asthma induced by house dust mite extract
- Creator
- Hashem, Tanwir
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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The inflammatory immune response that is characteristic of allergic asthma is triggered by exposure to allergens such as house dust mice extract (HDME) and is driven by CD4+Th2 lymphocytes that secrete large quantities of Th2 cytokines including interleukin (IL)-4, IL-13, and IL-5. Surface expression of CD2 and its ligand CD58, is increased on the monocytes and eosinophils of asthma patients, which correlate with elevated serum IgE levels, suggesting that CD2 may contribute to allergic airway...
Show moreThe inflammatory immune response that is characteristic of allergic asthma is triggered by exposure to allergens such as house dust mice extract (HDME) and is driven by CD4+Th2 lymphocytes that secrete large quantities of Th2 cytokines including interleukin (IL)-4, IL-13, and IL-5. Surface expression of CD2 and its ligand CD58, is increased on the monocytes and eosinophils of asthma patients, which correlate with elevated serum IgE levels, suggesting that CD2 may contribute to allergic airway inflammation. Using a murine model of asthma, we observed that HDME-exposed Balb/c mice have increased airway hyper responsiveness (AHR), cellular infiltration, goblet cell hyperplasia, and elevated levels of Th2 cytokines in the lungs, as well as increased serum IgE levels as compared to the control mice. In contrast, AHR, and cellular infiltration were significantly reduced in HDME-exposed Cd2-/- mice. Interestingly, Il13 but not Il4 or Il5 gene expression in the lungs was significantly reduced in HDME-exposed Cd2-/- mice. Of note, the gene expression of polymeric mucins, Muc5b and Muc5ac were significantly reduced in the lungs of HDME-exposed Cd2-/- mice. Furthermore, gene expression of various protective micro RNAs were increased in the lungs of HDME-exposed Cd2-/- mice. Lastly, in a mouse model of neutrophilic asthma, Cd2-/- mice exhibit significantly reduced AHR and Il13 and Il17a gene expression. Given the established role of IL-13 in promoting goblet cell hyperplasia and mucus production during allergic asthma, and various micro RNAs regulating different aspects of asthma symptoms, our studies reveal a unique role for CD2 in both Th2-high and Th2-low asthma.
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- Title
- A dimensional comparison of selected Japanese gardens, classical Chinese gardens and modern Chinese gardens
- Creator
- Qu, Yige
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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The relationships between Japanese gardens and Chinese gardens have been studied and discussed for a long time. This study focuses on the topic by a quantitative method. A cluster analysis is conducted to define the similarities and differences between these two kinds of gardens. The distinctive varieties in the result shows the elements that presents the relationships most distinctively. For this study, the data is collected in both Chinese gardens and Japanese gardens in order to show more...
Show moreThe relationships between Japanese gardens and Chinese gardens have been studied and discussed for a long time. This study focuses on the topic by a quantitative method. A cluster analysis is conducted to define the similarities and differences between these two kinds of gardens. The distinctive varieties in the result shows the elements that presents the relationships most distinctively. For this study, the data is collected in both Chinese gardens and Japanese gardens in order to show more persuasive results illustrating the relationships between these gardens. Principal component analysis is used to analyze the data, and to show intuitional visual results by graphs. The statistic software output shows a set of principal components. First three principal components contain roughly 59% of the variance. The design elements that distinctively effect the relationship are also indicated in the results, which lead further interpretation about the topic. The scatter graph shows distinct differences between Chinese gardens and Japanese gardens. Major elements divided Chinese gardens and Japanese gardens, traditional gardens and modern gardens, and Japanese gardens. This research can be used by garden designers and researchers to gain a insight concerning of the similarities and differences between Japanese gardens and Chinese gardens.
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- Title
- Integrated pest management strategies for control of potato early die in Michigan potato systems
- Creator
- Cole, Emilie
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
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Root lesion nematodes (Pratylenchus penetrans) in conjunction with the fungal pathogen Verticillium dahliae create the disease complex, potato early die, which can drastically reduce potato (Solanum tuberosum L.) yields. In Michigan, this disease complex is often managed using broad-spectrum soil fumigants such as methyl bromide, metam sodium and 1,3- dichloropropene, which can be harmful to applicators as well as soil and environmental health. Since the phase-out of methyl bromide in 2005,...
Show moreRoot lesion nematodes (Pratylenchus penetrans) in conjunction with the fungal pathogen Verticillium dahliae create the disease complex, potato early die, which can drastically reduce potato (Solanum tuberosum L.) yields. In Michigan, this disease complex is often managed using broad-spectrum soil fumigants such as methyl bromide, metam sodium and 1,3- dichloropropene, which can be harmful to applicators as well as soil and environmental health. Since the phase-out of methyl bromide in 2005, alternative control tactics to soil fumigants have become increasingly important to potato growers. In this thesis I investigated the use of (1) manures and manure-based composts and (2) non-fumigant nematicides and fungal-based biocontrols and their efficacy in reducing potato early die incidence. In laboratory trials, poultry manure and a blend of poultry and dairy manure compost (Layer Ash Blend) provided significant control of root lesion nematodes with 0% survivorship at rates of 5% (vol/vol) or higher. In field trials, I did not observe significant (P < 0.05) reductions in nematode populations regardless of treatment but did see a reduction in germinating V. dahliae microsclerotia in plots treated with poultry manure. Of the nematicides tested, Salibro treatments significantly reduced root lesion nematode and V. dahliae populations. From this research, it is clear that non-fumigant alternatives are possible for Michigan potato growers.
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- Title
- Webbed space : online feminist discourse in the fourth wave
- Creator
- Sweo, Naomi
- Date
- 2017
- Collection
- Electronic Theses & Dissertations
- Description
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"This thesis examines the feminist online discourse community 'A Practical Wedding' and identifies four characteristics that make it a model for feminist online interaction: 1. the connection of users' online identities with their real-life selves; 2. the non-hierarchical structure of the community; 3. the productive exchanges between members; and 4. the site- and Internet-wide intertextuality. Technofeminist threads in rhetoric and composition in the late 1990's and early 2000's were mostly...
Show more"This thesis examines the feminist online discourse community 'A Practical Wedding' and identifies four characteristics that make it a model for feminist online interaction: 1. the connection of users' online identities with their real-life selves; 2. the non-hierarchical structure of the community; 3. the productive exchanges between members; and 4. the site- and Internet-wide intertextuality. Technofeminist threads in rhetoric and composition in the late 1990's and early 2000's were mostly abandoned. They deserve renewed attention, with updating based on the existence and necessity of fourth-wave feminism today. The author first describes her own origin story that led to her interest in this research. She then applies a system of virtual critical discourse analysis and resultant coding schema to four representative posts and their comment sections. This thesis concludes with a call for the creation of more communitarian, feminist spaces on the Internet with similar models of engagement to those used in 'A Practical Wedding.'"--Page ii.
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- Title
- EFFECTS OF TEACHING ACCEPTANCE AND COMMITMENT THERAPY-BASED STRATEGIES ON IMPROVING ACADEMIC ENGAGEMENT AND PARTICIPATION FOR STUDENTS IN AN APPLIED BEHAVIOR ANALYSIS MASTER’S PROGRAM
- Creator
- Dunnigan, Mikeya Renee
- Date
- 2021
- Collection
- Electronic Theses & Dissertations
- Description
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The field of applied behavior analysis (ABA) comes with rigorous work expectations and demands. ABA practitioners who are also graduate students must balance the extensive workload of educational and work expectations. Given these demands, graduate students providing ABA services to clients with autism spectrum disorder (ASD) need strategies to maintain their own positive mental health in order to maintain high academic achievement and to prevent burnout. Using a multiple baseline design this...
Show moreThe field of applied behavior analysis (ABA) comes with rigorous work expectations and demands. ABA practitioners who are also graduate students must balance the extensive workload of educational and work expectations. Given these demands, graduate students providing ABA services to clients with autism spectrum disorder (ASD) need strategies to maintain their own positive mental health in order to maintain high academic achievement and to prevent burnout. Using a multiple baseline design this study examined whether teaching 6 graduate students enrolled in an ABA master's program who were also working as part-time practitioners providing ABA services to individuals with ASD to use Acceptance and Commitment Therapy (ACT)-based strategies impacted their engagement and active participation during an online synchronous class. Changes in psychological flexibility, stress, and values-behavior were also examined. Although there was no functional relation between the training on using ACT-based strategies and the dependent variables, the lack of effects is likely because the participants enrolled in the study did not have baseline levels that indicated a need for intervention. Additionally, it is hypothesized that competing factors and stressors related to the COVID-19 pandemic likely outweighed the impact of the training to use the ACT-based strategies. The results are discussed more in as well as implications for future research. Keywords: graduate students, behavior technician, Acceptance and Commitment Therapy, psychological flexibility, stress, value driven behavior.
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