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Title: THE USE OF EQUIVALENCE-BASED INSTRUCTION TO TEACH GRADUATE STUDENTS SIMPLIFIED DEFINITIONS OF BEHAVIOR ANALYTIC TERMINOLOGY
Creator: Medlin, Grace
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Individuals who are pursuing their Board-Certified Behavior Analyst (BCBA) certification are required to have an effective understanding of applied behavior analysis (ABA) terminology. Hemwell (2020) used Equivalence Based Instruction (EBI) and Match-to-Sample (MTS) training to teach technical definitions of ABA terminology to first-year ABA students. Participants displayed limited emergent intraverbal responding and did not maintain emergent intraverbal responding. Hemwell (2020) speculated...
Show moreIndividuals who are pursuing their Board-Certified Behavior Analyst (BCBA) certification are required to have an effective understanding of applied behavior analysis (ABA) terminology. Hemwell (2020) used Equivalence Based Instruction (EBI) and Match-to-Sample (MTS) training to teach technical definitions of ABA terminology to first-year ABA students. Participants displayed limited emergent intraverbal responding and did not maintain emergent intraverbal responding. Hemwell (2020) speculated this was due to the length and complexity of the definitions. The current study was conducted to replicate and extend Hemwell (2020) to determine if using simplified definitions of ABA terminology was effective in promoting the acquisition, understanding, and maintenance of ABA terminology. Using a multiple probe across behaviors design replicated across participants, participants were exposed to 30 simplified ABA terms, along with definitions and examples via a MTS teaching method. Participants were assessed on their performance of untaught relations in a selection-based pre-post assessment, as well as through a written intraverbal probes. Despite text simplification, emergent intraverbal responding was variable and did not maintain for all terms. However, emergent selection-based responding across all relations from pre to post test was evident. In addition, following text simplification, participants displayed emergent selection based responding with more complex definitions from the Cooper et al. (2020) textbook. Overall, future instructors may consider the use of EBI and text simplification in their courses to teach ABA terminology, examples, and principles.
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Title: HIGH SURFACE AREA ZINC ELECTRODE FOR FURFURAL ELECTROCATALYTIC HYDROGENATION
Creator: Lee, Seungyeon
Date: 2022
Collection: Electronic Theses & Dissertations
Description: With the increasing need to achieve carbon neutrality, electrocatalytic hydrogenation (ECH) of biomass-derived oxygenates, such as furfural, has received growing interest. Biomass ECH is an eco-friendly conversion of an abundant resource to valuable chemical products like fuels that replace fossil resources. In this study, we focus on high surface-area zinc nanoparticles as a catalyst for furfural ECH. The rotating disk electrode (RDE) is employed to enable quick electrochemical studies with...
Show moreWith the increasing need to achieve carbon neutrality, electrocatalytic hydrogenation (ECH) of biomass-derived oxygenates, such as furfural, has received growing interest. Biomass ECH is an eco-friendly conversion of an abundant resource to valuable chemical products like fuels that replace fossil resources. In this study, we focus on high surface-area zinc nanoparticles as a catalyst for furfural ECH. The rotating disk electrode (RDE) is employed to enable quick electrochemical studies with small surface area, and kinetic parameters were obtained via Koutecký-Levich analysis. To modify a glassy carbon RDE with zinc nanoparticles, Nafion®, polyvinyl pyrrolidone (PVP), and polyvinyl alcohol (PVA) were studied as binders. In the absence of furfural, chronoamperometry of PVA-bound zinc electrodes showed continuous steady current associated with the hydrogen evolution reaction (HER). In contrast, Nafion® and PVP bound electrodes were found to be unstable. In the presence of furfural, high electrocatalytic activity was achieved with Zn-PVA compared to glassy carbon. The Zn-PVA electrode was optimized by varying the binder content and total zinc loading. A weak optimum was identified at 92 wt% zinc and 8.6 mgZn/cm2 loading. For zinc electrodes, high FE was obtained at higher overpotential (-0.9V vs. RHE), whereas higher FE was obtained at lower overpotentials for copper. Through Koutecký-Levich analysis, kinetic current densities and moderate Tafel slopes were observed, suggesting that the high surface-area zinc electrode is a promising platform for ECH. Product analysis studies using GC-MS are suggested to verify FE and to further elucidate the mechanism of furfural ECH at zinc electrodes.
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Title: MISTRAL Y EL MAR MATERNIDAD CUIR, NATURALEZA E INTIMIDAD EN LA POESÍA DE GABRIELA MISTRAL
Creator: Arimany, Vivian
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Esta tesis plantea que a través de la naturaleza (el agua, las plantas, etc.) la voz femenina en los poemas de Gabriela Mistral “Meciendo” de Ternura (1924), las dos primeras secciones de “Canciones en el mar” y “El suplicio” de Desolación (1922) al igual que “La otra” de Lagar (1924), alude a nuevas maneras de encarnar la maternidad y los roles de género. Se puede leer maternidad cuir al igual que un desafío de los discursos patriarcales sobre la feminidad y la mujer, y también se retratan...
Show moreEsta tesis plantea que a través de la naturaleza (el agua, las plantas, etc.) la voz femenina en los poemas de Gabriela Mistral “Meciendo” de Ternura (1924), las dos primeras secciones de “Canciones en el mar” y “El suplicio” de Desolación (1922) al igual que “La otra” de Lagar (1924), alude a nuevas maneras de encarnar la maternidad y los roles de género. Se puede leer maternidad cuir al igual que un desafío de los discursos patriarcales sobre la feminidad y la mujer, y también se retratan diferentes maneras de vivir la feminidad. Asimismo, existe una búsqueda de la intimidad, que se define a partir de las propuestas de Francisco Cruces y Lauren Berlant, como una experiencia que puede suceder tanto entre dos cuerpos autónomos como en la relación personal con uno mismo. La naturaleza es un nudo conector entre estos poemas porque funciona como trasfondo escénico, así como un vehículo para que la voz poética rompa los esquemas sociales tradicionales con el fin de vivir la feminidad y la maternidad de manera alternativa a los dictámenes patriarcales.
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Title: HOW CAREGIVERS OF CHILDREN IN EARLY INTERVENTION FEEL ABOUT SIMPLIFIED LANGUAGE INPUT : A SURVEY STUDY
Creator: Nylund, Megan
Date: 2022
Collection: Electronic Theses & Dissertations
Description: There is some disagreement regarding how adults should simplify their utterances when speaking to young children with language delays. One type of simplification that has come into question is telegraphic input, a style of speaking that involves removing grammatical aspects of phrases, such as function words and grammatical markers (e.g., All done snack, Cookie yummy). In the current study, we utilized survey data collected by Andary (2020) surveying caregivers of children in early...
Show moreThere is some disagreement regarding how adults should simplify their utterances when speaking to young children with language delays. One type of simplification that has come into question is telegraphic input, a style of speaking that involves removing grammatical aspects of phrases, such as function words and grammatical markers (e.g., All done snack, Cookie yummy). In the current study, we utilized survey data collected by Andary (2020) surveying caregivers of children in early intervention about their views on different types of simplified language. Specifically, we asked: How do caregivers’ beliefs about telegraphic input relate to how comfortable they are producing different types of simplified utterances? Results were also analyzed for correlations between demographics and beliefs of simplification. Additionally, the survey provided space for caregivers to share recommendations they gained through Early On resources. Results show caregivers with a positive view of telegraphic input felt significantly less comfortable producing full, grammatical utterances than caregivers with a negative or neutral view of telegraphic input. Demographic analysis revealed caregivers with higher education levels preferred more grammatical utterances. These findings emphasize the importance of understanding caregiver perspectives in caregiver-mediated intervention approaches.
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Title: THE TRANSCRIPTOMIC AND EPIGENOMIC RESPONSE OF KOCHIA SCOPARIA TO SUBLETHAL GLYPHOSATE
Creator: Claucherty, Carly Abbegail
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Weed populations respond and adapt to herbicide stress by evolving resistance. Glyphosate resistance is primarily caused by the amplification of the target site gene, EPSPS, where multiple copies produce a large enough protein pool so that field rates do not kill the plant. This mechanism has evolved independently in at least nine divergent weed species. It has been demonstrated that EPSPS gene duplication may be transposon mediated in Kochia scoparia. A key regulator of transposable element ...
Show moreWeed populations respond and adapt to herbicide stress by evolving resistance. Glyphosate resistance is primarily caused by the amplification of the target site gene, EPSPS, where multiple copies produce a large enough protein pool so that field rates do not kill the plant. This mechanism has evolved independently in at least nine divergent weed species. It has been demonstrated that EPSPS gene duplication may be transposon mediated in Kochia scoparia. A key regulator of transposable element (TE) activity is DNA methylation. The role of the epigenome and subsequent transcriptome in transient responses to herbicides of their primary target, weeds, is not well understood In this study, we performed RNA-Seq and bisulfite sequencing on leaf tissue from glyphosate-sensitive kochia before and three weeks after treatment with two sublethal doses to determine if glyphosate causes hypomethylation of the genome, allowing for the activation of transposons and upregulation of stress-related genes. Our results shows that overall gene expression was suppressed by glyphosate and increases in CHH methylation through development were also ceased. We did not observe significant global changes in cytosine methylation, and overall responses were stochastic. When combining the two datasets together, there was no direct correlation between changes in methylation and changes in gene expression suggesting that DNA methylation is not the primary cause of differential expression in our study. Our results broaden the knowledge pool of weedy species epigenomics and aid in understanding the contribution of DNA methylation to plant resilience in response to herbicide stress.
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Title: WE DON’T NEED TO KNOW WHAT WE SEE : MODEST MEDIATION OF BISTABLE PERCEPTION BY KNOWLEDGE
Creator: Zhang, Bobicheng
Date: 2022
Collection: Electronic Theses & Dissertations
Description: When faced with ambiguous visual input, an observer may have various perceptual interpre- tations even when the input remains unchanged. Indeed, such ambiguous displays can cause the observer to experience distinct perceptual interpretations in turn, unpredictably switching between them over time. Theories of such so-called multistable perception broadly fall into two categories: top-down theories that hold that perception in these cases depends strongly on higher-level cogni- tive factors...
Show moreWhen faced with ambiguous visual input, an observer may have various perceptual interpre- tations even when the input remains unchanged. Indeed, such ambiguous displays can cause the observer to experience distinct perceptual interpretations in turn, unpredictably switching between them over time. Theories of such so-called multistable perception broadly fall into two categories: top-down theories that hold that perception in these cases depends strongly on higher-level cogni- tive factors such as knowledge, and bottom-up theories which suggests more vital involvement of aspects of lower-order information processing such as local adaptation in the visual system. We evaluated whether the occurrence of perceptual reversals in the face of ambiguous input is related to the observer’s knowledge that the input is, indeed, ambiguous. We used an ambiguous animation that was designed such that subjects could report perceptual reversals without realizing the ambigu- ity. Subjects observed the animation, reported their perception, and filled out a questionnaire that assessed their knowledge of the animation’s ambiguity. We found that informed subjects reported slightly more perceptual switches than the other subjects, but that this between-group difference was very small compared to the lack of variability within each group between subjects who were aware of the ambiguity and those who were not. These findings suggests that knowledge of ambiguity can influence perception of ambiguous stimuli, but that this influence is relatively minor. This discrepancy between current findings and past work is discussed.
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Title: BLAME JUDGEMENTS FOR PAST ACTIONS OF GROUPS
Creator: Vallabha, Shree
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Historically, groups have committed innumerable atrocities, including genocide and slavery. I tested if people blame current groups for the actions of their past members and what underlies this blame. Current models of blame overlook the dimension of time and therefore have difficulty explaining this phenomenon. I hypothesized that perceiving higher (a) connectedness between past and present perpetrator groups, (b) unfulfilled obligations of perpetrator groups, (c) continued privilege of...
Show moreHistorically, groups have committed innumerable atrocities, including genocide and slavery. I tested if people blame current groups for the actions of their past members and what underlies this blame. Current models of blame overlook the dimension of time and therefore have difficulty explaining this phenomenon. I hypothesized that perceiving higher (a) connectedness between past and present perpetrator groups, (b) unfulfilled obligations of perpetrator groups, (c) continued privilege of perpetrator groups, and (d) continued harm of victim groups would facilitate higher blame judgements against current groups for the past. In a survey (N=518) using real events, I find results consistent with all the four hypotheses and some preliminary evidence for group differences in these relationships. I find that factors that link the present group to the past explain why groups are blamed for their past actions. These findings bring to light the deficiencies in existing theories of blame – calling into question its assumptions and incomplete criterion of judgement.
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Title: Evaluation of Operational Performance and Environmental Impact of a Commercial Scale Anaerobic Digester Utilizing Multiple Feedstocks
Creator: Dwilaksono, Fahmi
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Food waste and livestock manure become some of major sources that contribute to greenhouse gas (GHG) emissions in the U.S. Utilizing manure and food wastes as biogas feedstocks through anaerobic digestion (AD) process can improve renewable energy production while reducing the impact of climate change due to GHG emission from untreated organic wastes. This study evaluated the operational performance of Michigan State University’s commercial South Campus Anaerobic Digester (SCAD) as well as the...
Show moreFood waste and livestock manure become some of major sources that contribute to greenhouse gas (GHG) emissions in the U.S. Utilizing manure and food wastes as biogas feedstocks through anaerobic digestion (AD) process can improve renewable energy production while reducing the impact of climate change due to GHG emission from untreated organic wastes. This study evaluated the operational performance of Michigan State University’s commercial South Campus Anaerobic Digester (SCAD) as well as the environmental impact during its operation in 2014-2020. Evaluation of feedstock supplies quantity and output parameters of SCAD was conducted to understand the operational performance of the digester. A life cycle assessment (LCA) was done to know the environmental impact of SCAD by comparing it to the conventional waste management methods. Technoeconomic analysis was conducted to know the financial feasibility of SCAD as a commercial digester. The result shows that during its operation from 2014 to 2020, SCAD has processed 159,145 metric tons of feedstock from 18 different organic wastes to produce 15,165,156 kWh of electricity for MSU community. LCA results show that AD system possesses fewer environmental burdens in both global warming potential (GWP) and water eutrophication potential (WEP) compared to the conventional system. Technoeconomic analysis reveals that SCAD needs 21.5 years to accomplish its payback time, which is considered quite economically competitive.
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Title: Accessible Communication for Teaching App Research and Prototype
Creator: Tetu, Imari Cheyne
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Academia has traditionally served students who are able-bodied and able-minded. To include students with physical and cognitive disabilities, colleges and universities need to consider forms of engagement and participation that do not place disabled students at a disadvantage. Remote learning tools, such as those available in Zoom and Microsoft Teams, provide alternate means of communication that would be useful in classes with face-to-face meetings. I propose an app for use in post-secondary...
Show moreAcademia has traditionally served students who are able-bodied and able-minded. To include students with physical and cognitive disabilities, colleges and universities need to consider forms of engagement and participation that do not place disabled students at a disadvantage. Remote learning tools, such as those available in Zoom and Microsoft Teams, provide alternate means of communication that would be useful in classes with face-to-face meetings. I propose an app for use in post-secondary hybrid and hyflex writing classrooms. This app will facilitate networked communication among student groups as well as between individual students and instructors. I use design and accessibility heuristics to develop the wireflow through iterative design with a focus on the varying needs of people with physical and cognitive disabilities.
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Title: HORSEWEED MANAGEMENT WITH SHADING AND COVER CROPS, AND THE TOLERANCE OF TWO HORSEWEED GROWTH TYPES TO GLYPHOSATE
Creator: Fisher, Justine Lynn
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Field experiments were conducted to evaluate if fall-planted cereal rye in combination with narrow row soybean improved glyphosate-resistant (GR) horseweed management. At the time of a postemergence herbicide application (POST), horseweed biomass was 71 to 90% lower when soybean was planted into cereal rye, regardless of termination time, compared with no cover across all row widths. Planting green or narrow row soybean suppressed horseweed through soybean harvest and integrating an effective...
Show moreField experiments were conducted to evaluate if fall-planted cereal rye in combination with narrow row soybean improved glyphosate-resistant (GR) horseweed management. At the time of a postemergence herbicide application (POST), horseweed biomass was 71 to 90% lower when soybean was planted into cereal rye, regardless of termination time, compared with no cover across all row widths. Planting green or narrow row soybean suppressed horseweed through soybean harvest and integrating an effective POST herbicide improved control. Additional field experiments found that in the absence of an effective POST herbicide, horseweed biomass was 42 and 81% lower by planting green or applying a residual herbicide compared with no cover, respectively, at soybean harvest. Similarly, planting soybean in 19 cm rows reduced horseweed biomass compared with 38 and 76 cm rows. In the greenhouse, shade levels from 35 to 92% reduced rosette and upright horseweed biomass 31 to 99% compared with the upright-type grown under 0% shade. Greater reductions occurred under 69 and 92% shade. Differences in glyphosate sensitivity between the rosette and upright horseweed growth types were not due to absorption, translocation, or total glyphosate retention; however, glyphosate retention was 21 and 18% lower on a per weight and area basis for the upright growth type. This diluted concentration may contribute to increased glyphosate tolerance found in the upright growth type. However, other factors such as differences in EPSPS gene expression may also help explain differential sensitivity if a target-mutation is discovered. This research provides growers strategies for managing horseweed and insight into potential growth type differences.
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Title: Student learning perspectives : Differences by race and class during the COVID-19 pandemic
Creator: Groeller, Katrina C.
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Undergraduate students across the United States had to adapt to learning that was primarily on screen and off campus during the COVID-19 pandemic. With time, campus communities adjusted to the “new normal” of distanced coursework. Little is known about student perspectives on distanced learning after the campus shutdown and more than a semester had passed. Utilizing an online survey of 364 undergraduate students a large Midwestern university, multivariate ordinary least squares regression is...
Show moreUndergraduate students across the United States had to adapt to learning that was primarily on screen and off campus during the COVID-19 pandemic. With time, campus communities adjusted to the “new normal” of distanced coursework. Little is known about student perspectives on distanced learning after the campus shutdown and more than a semester had passed. Utilizing an online survey of 364 undergraduate students a large Midwestern university, multivariate ordinary least squares regression is used to estimate the effect of learning perspectives of students of color and low-income students. Though results were insignificant, students of color and low-income students encountered important barriers to their education during the COVID-19 pandemic.
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Title: DO NEIGHBORHOOD PARKS IN A DECLINED CITY IMPROVE HOUSING PROPERTY VALUE?
Creator: Cook, Teddy R.
Date: 2022
Collection: Electronic Theses & Dissertations
Description: ABSTRACTDO NEIGHBORHOOD PARKS IN A DECLINED CITY IMPROVE HOUSING PROPERTY VALUE?By Teddy R. CookMany studies that have assessed the economic benefit of urban greenspace have demonstrated that greenspace has a positive effect on the property value and overall desirability of properties. Previous studies, however, have yet to explore the City of Detroit after the 2013 Bankruptcy, the subsequent decline in population, and the relationship of greenspace toward the single-family property value. In...
Show moreABSTRACTDO NEIGHBORHOOD PARKS IN A DECLINED CITY IMPROVE HOUSING PROPERTY VALUE?By Teddy R. CookMany studies that have assessed the economic benefit of urban greenspace have demonstrated that greenspace has a positive effect on the property value and overall desirability of properties. Previous studies, however, have yet to explore the City of Detroit after the 2013 Bankruptcy, the subsequent decline in population, and the relationship of greenspace toward the single-family property value. In this research, real estate transactions were collected from Michigan’s city of Detroit open data portal, to examine the relationship between community park size, proximity to the park, and the monetary value of single-family housing property. The data gathered was inputted into GIS in order provide spatial results that are more reliable to see, analyze, and understand the patterns and relationships. The results of the statistical model showed that an inverse correlation exists between parks and single-family house transaction value. This correlation highlights the current conditions that are in prevalent in the greater Detroit. This research is an effective gauge to steer the future municipality planning of the communities affected by the population decline.
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Title: ADVANCING BLUEBERRY POSTHARVEST BIOLOGY : THE EFFECT OF SULFUR DIOXIDE FUMIGATION ON BLUEBERRY PHYSIOLOGY AND RNA-SEQ OF THE BLUEBERRY-COLLETOTRICHUM FIORINIAE PATHOSYSTEM IN ‘ELLIOTT’ FRUIT
Creator: Abeli, Patrick
Date: 2022
Collection: Electronic Theses & Dissertations
Description: The physiology and biology of blueberry fruit is the most important consideration for understanding postharvest storage. Fruit physiology is responsive to many stimuli including biotic, genetic, and environmental inputs. The extent to which a blueberry fruit are affected by these factors is largely cultivar dependent. The following studies address two aspects of blueberry fruit postharvest biology as it relates to pest control: In Chapter 2, we explore the effect of SO2 fumigation on five...
Show moreThe physiology and biology of blueberry fruit is the most important consideration for understanding postharvest storage. Fruit physiology is responsive to many stimuli including biotic, genetic, and environmental inputs. The extent to which a blueberry fruit are affected by these factors is largely cultivar dependent. The following studies address two aspects of blueberry fruit postharvest biology as it relates to pest control: In Chapter 2, we explore the effect of SO2 fumigation on five blueberry cultivars: ‘Bluecrop’, ‘Draper’, ‘Elliott’, ‘Jersey’, and ‘Liberty’ and the extent to which SO2 fumigation can be used to disinfest blueberry fruit of blueberry maggot (BBM) Rhagoletis mendax Curran. In Chapter 3, we use RNA sequencing (RNA-seq) to reveal genes differentially expressed (DE) in ‘Elliott’ fruit in response to infection by Colletotrichum fioriniae compared to mock- (water-) inoculated fruit. By filtering out DE genes in mock-inoculated fruit postharvest, as well as DE genes in infected ‘Jersey’ and ‘Draper’ fruit, we discovered 113 genes unique to ‘Elliott’ fruit that are inoculation-responsive. This set of genes include canonical plant resistance genes as well as genes associated with secondary metabolite biosynthesis, cell wall metabolism, reactive oxygen species production and scavenging, and the hypersensitive response. These studies provide important groundwork for future blueberry breeding by identifying cultivars with genetics and physiology amenable to different interventions for reducing postharvest fruit losses.
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Title: Breastfeeding history and adenomyosis risk using a novel case-control study design
Creator: Hall, Mandy Sue
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Adenomyosis is characterized by presence of endometrial tissue within the muscular wall of the uterus and is associated with substantial morbidity. While etiology of adenomyosis remains unknown, an estrogenic milieu contributes to disease pathogenesis. We hypothesize that lactation, wherein infant suckling inhibits ovulation and induces a hypoestrogenic state, is associated with decreased adenomyosis risk. We investigated this hypothesis using data from a case-control study of adenomyosis...
Show moreAdenomyosis is characterized by presence of endometrial tissue within the muscular wall of the uterus and is associated with substantial morbidity. While etiology of adenomyosis remains unknown, an estrogenic milieu contributes to disease pathogenesis. We hypothesize that lactation, wherein infant suckling inhibits ovulation and induces a hypoestrogenic state, is associated with decreased adenomyosis risk. We investigated this hypothesis using data from a case-control study of adenomyosis conducted among female enrollees of a large healthcare system in Washington State. In that study, incident, pathology-confirmed adenomyosis cases diagnosed 2001-2006 were identified and two control groups were employed: randomly selected age-matched enrollees with intact uteri (“population controls”) and hysterectomy controls. Breastfeeding history of initiation and duration for each live birth reported were collected by in-person interview. We restricted the analytic sample to those with at least one live birth (330 cases, 246 population controls, and 198 hysterectomy controls) and used logistic regression to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for associations between adenomyosis and breastfeeding, adjusting for age, reference year, smoking, education, and parity. Using population controls, history of ever breastfeeding or ever breastfeeding an infant for ≥ eight weeks were associated with a 40% decreased risk of adenomyosis (ever breastfed: OR 0.6, 95% CI: 0.3, 1.0; ever breastfed an infant ≥ eight weeks: OR 0.6, 95% CI: 0.4, 0.8). The magnitude of association was stronger with longer lifetime breastfeeding duration (≥12 months vs. 0-<3 months: OR 0.4, 95% CI: 0.2, 0.6) and exclusive breastfeeding (≥12 months vs. 0-<3 months: OR 0.4, 95% CI: 0.2, 0.6). Using hysterectomy controls, we observed similar patterns of associations that were attenuated in magnitude. Our results indicate that a potentially modifiable factor, breastfeeding, may decrease adenomyosis risk among parous women.
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Title: AN INVESTIGATION OF ELITE U.S. FIGURE SKATERS’ SOCIAL MEDIA USE, PURPOSES OF USE, AND SUBSEQUENT PERCEIVED PSYCHOLOGICAL IMPLICATIONS
Creator: Miller , Hannah Hunter
Date: 2022
Collection: Electronic Theses & Dissertations
Description: This study investigated social media use, purposes of social media use, and the subsequent perceived psychological implications in elite U.S. figure skaters. Thirty-seven elite U.S. figure skaters were recruited via correspondence through social media platforms. The participants were current U.S. figure skaters who competed within the senior level at or above the national level and were over 18 years of age. A mixed methods two phase design was employed. During Phase 1, each participant...
Show moreThis study investigated social media use, purposes of social media use, and the subsequent perceived psychological implications in elite U.S. figure skaters. Thirty-seven elite U.S. figure skaters were recruited via correspondence through social media platforms. The participants were current U.S. figure skaters who competed within the senior level at or above the national level and were over 18 years of age. A mixed methods two phase design was employed. During Phase 1, each participant completed a self-report survey including measures of social media use, purposes of use, and perceived psychological implications of use. Following the survey, eight participants were selected, dependent on their responses during Phase 1, to participate in Phase 2. Phase 2 consisted of a 20-to-30-minute semi-structured interview aimed at establishing an in-depth understanding of the perceived psychological implications of social media use. Athletes were asked about specific situations in which social media content affected their emotions, thought processes, body image, self-confidence, etc. The results indicated that a majority of elite U.S. figure skaters use a multitude of social media platforms for reasons both related and unrelated to figure skating. The participants perceived both positive and negative psychological ramifications of social media use. However, the negative effects of social media use were more pervasive in both Phase 1 and Phase 2 results.
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Title: IMPROVING YIELD AND QUALITY OF LEAFY GREENS GROWN INDOORS WITH PRECISE RADIATION, TEMPERATURE, AND CARBON DIOXIDE MANAGEMENT
Creator: Tarr, Sean T.
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Indoor agriculture systems can allow for precise manipulation of the mean daily temperature (MDT), carbon dioxide (CO2) concentration, and photosynthetic photon flux densities (PPFD). Identifying how these environmental parameters interact to influence crop growth, development, yield, and color can assist growers with selecting their desired growing environment. Therefore, the objectives of Expt. 1 and 2 were to quantify and model how PPFD and CO2 concentrations interact with MDT to influence...
Show moreIndoor agriculture systems can allow for precise manipulation of the mean daily temperature (MDT), carbon dioxide (CO2) concentration, and photosynthetic photon flux densities (PPFD). Identifying how these environmental parameters interact to influence crop growth, development, yield, and color can assist growers with selecting their desired growing environment. Therefore, the objectives of Expt. 1 and 2 were to quantify and model how PPFD and CO2 concentrations interact with MDT to influence the growth, yield, and quality of hydroponically grown green butterhead ‘Rex’ and red oakleaf lettuce ‘Rouxaï RZ’. In Expt. 3 we developed models to predict growth parameters and cardinal temperatures of lettuce, arugula, and kale from 8 to 33 °C. In Expt. 1, lettuce ‘Rex’ and ‘Rouxaï RZ’ were grown in deep-flow hydroponic tanks under a PPFD of 150 or 300 μmol·m‒2·s‒1 for 17 h·d–1 at MDTs of 20, 23, or 26 °C. PPFD and MDT interacted to influence biomass accumulation of both cultivars. In Expt. 2, lettuce ‘Rex’ and ‘Rouxaï RZ’ were grown under a PPFD of 300 μmol·m‒2·s‒1 and at the same MDTs as Expt. 1, but with CO2 concentrations of 500, 800, or 1200 μmol·mol–1. Dry mass of both cultivars was influenced by the interaction of CO2 and MDT; biomass accumulation was greatest at 800 μmol·mol–1 CO2 at MDTs of 23 and 26 °C. In Expt. 3, ‘Rex’ and ‘Rouxaï RZ’, kale ‘Red Russian’, and arugula ‘Astro’ were grown at MDTs of 8, 13, 18, 23, 28, or 33 °C. ‘Rex’ and ‘Rouxaï RZ’ had similar base and optimal temperature estimates of 8 °C and 26 °C, while arugula and kale were lower at 6 °C and 23 °C.
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Title: San Jose scale mating disruption in apples
Creator: Maas, Jessika
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Recently San Jose scale (Quadraspidiotus perniciosus Comstock) has reemerged as a critical pest within Michigan apple orchards. San Jose scale is an excellent candidate for the development of pheromone-mediated mating disruption as an alternative strategy to insecticides, as it is a weak flyer, and the sex-pheromone is known and has been in use for decades as a monitoring tool. The response of male San Jose scale to increasing densities of ISOMATE® dispensers primed with San Jose scale sex...
Show moreRecently San Jose scale (Quadraspidiotus perniciosus Comstock) has reemerged as a critical pest within Michigan apple orchards. San Jose scale is an excellent candidate for the development of pheromone-mediated mating disruption as an alternative strategy to insecticides, as it is a weak flyer, and the sex-pheromone is known and has been in use for decades as a monitoring tool. The response of male San Jose scale to increasing densities of ISOMATE® dispensers primed with San Jose scale sex pheromone was utilized to determine the mechanism of mating disruption for this pest in a two-year study. Dispensers were deployed in naturally infested apple orchard plots at six different rates from 0 to 926 per ha. The dispenser density experiment revealed that San Jose scale exhibits competitive mating disruption, as evidenced by the curvilinear decrease in the number of males caught in monitoring traps with increasing dispenser densities. In a separate efficacy experiment, two rates of the ISOMATE® dispenser were compared to one rate of CIDETRAK® dispensers and an untreated control. There was no statistical difference among dispenser rates or types, but all performed significantly better than the control. However, an assessment of their pheromone release rate over time revealed significant differences in their output levels throughout the season. This study also revealed that the first flight of male San Jose scale in southwestern Michigan occurred after petal fall in both 2020 and 2021. Further research is needed to determine how best to incorporate mating disruption into current apple pest management programs, but this work demonstrates the viability of pheromone-mediated mating disruption as a pest management tool for San Jose scale. It is anticipated that this research will enable manufacturers of mating disruption tools to start the process of registration for commercial use.
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Title: Navigating Ideology, Identity, and Emotion in the Context of English-Medium Higher Education : Zohra's Story
Creator: Zulick, Bethany
Date: 2022
Collection: Electronic Theses & Dissertations
Description: There is a growing prevalence of English-medium instruction (EMI) at universities around the world as a result of globalization and the internationalization of higher education. Although the English language is often the main language of these institutions, research shows that the local language often occupies an important position within these institutions. This linguistic environment places international students who do not speak the local language in a vulnerable position, and they may...
Show moreThere is a growing prevalence of English-medium instruction (EMI) at universities around the world as a result of globalization and the internationalization of higher education. Although the English language is often the main language of these institutions, research shows that the local language often occupies an important position within these institutions. This linguistic environment places international students who do not speak the local language in a vulnerable position, and they may face exclusion from social settings or have less access to some aspects of academic life as a result. The present study examines how ideology, identity, and emotion interact in one international student’s journey through her first year at an EMI institution in Kyrgyzstan as she navigates language use within the institution, cultivates her multilingual repertoire, and creates a place for herself in the institutional community. The findings of the study revealed how the focal participant, Zohra, was influenced by monolingual ideologies, viewing the institution as a primarily English-only space and attempting to uphold these norms through her own language use. Like other international students, Zohra also reported experiences of exclusion through the use of the local language, positioning her as an outsider and provoking a range of negative emotions in response. Zohra leveraged her strong English skills and strategically used the local language to construct a positive identity for herself as a full member of the university community. She also engaged in an iterative process of reflection as she compartmentalized her personally held language ideologies and managed her negative emotions surrounding language use to facilitate her adjustment to the university.
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Title: TARGETING PERFORMANCE PACE IN LONG DISTANCE RUNNERS THROUGH ACCEPTANCE AND COMMITMENT TRAINING
Creator: Staggemeier, Tessa Nicole
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Long-distance runners often encounter private events while running that may negatively impact their performance, such as staying on pace throughout the duration of a run. Recent research has attempted to target the private events of athletes through a variety of mindfulness-based approaches with varied results. Despite the popularity of mindfulness approaches, there is limited research evaluating the effectiveness of Acceptance and Commitment Therapy (ACT), a behavior analytic approach that...
Show moreLong-distance runners often encounter private events while running that may negatively impact their performance, such as staying on pace throughout the duration of a run. Recent research has attempted to target the private events of athletes through a variety of mindfulness-based approaches with varied results. Despite the popularity of mindfulness approaches, there is limited research evaluating the effectiveness of Acceptance and Commitment Therapy (ACT), a behavior analytic approach that combines mindfulness strategies with behavior change strategies to target psychological flexibility (PF), on the performance of athletes. The current study used a multiple baseline across participants design to evaluate the effects of a brief ACT intervention on three female high school cross country runner’s ability to meet goal pace times. In addition, the study evaluated whether the intervention impacted participant’s self-reports of PF after a run. Results of the study indicate the ACT intervention did not impact participant’s goal pace times but was effective at increasing participants’ self-reports of PF. Implications of the study and future research are discussed.
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Title: BELE PUCELE : THE MUSIC AND IDENTITY OF MAROIE DE DERGNAU
Creator: Feldkamp, Suzanna Grace
Date: 2022
Collection: Electronic Theses & Dissertations
Description: Maroie de Dergnau is one of the few women whose names were recorded in trouvèrechansonniers, as she is credited in several rubrics in the margins of these sources. She is cited as the author of the chanson d’amour Mout m’abelist (RS 1451) in MSS M and T, and she is an interlocutor in the jeu-parti Je vous pri, Dame Maroie (RS 1744), held in MSS A and a. She is connected to Lille by the rubrics and to Arras through the chanson d’amour Bonne, belle, et avenant (RS 262), dedicated to her by...
Show moreMaroie de Dergnau is one of the few women whose names were recorded in trouvèrechansonniers, as she is credited in several rubrics in the margins of these sources. She is cited as the author of the chanson d’amour Mout m’abelist (RS 1451) in MSS M and T, and she is an interlocutor in the jeu-parti Je vous pri, Dame Maroie (RS 1744), held in MSS A and a. She is connected to Lille by the rubrics and to Arras through the chanson d’amour Bonne, belle, et avenant (RS 262), dedicated to her by Andrieu de Contredit, an Arrageois trouvère.My investigation into a trail of clues left by the sources that contain her name and musicsheds new light on Maroie’s life, each chapter examining a different facet of her experience. Chapter One locates traces of Maroie in several documents, explaining the contents of these sources and their implications for Maroie’s identity, family, experience, possible birth year, and for women musicians’ history more broadly. Chapter Two discusses her chanson d’amour, Mout m’abelist (RS 1451), the twin meanings coded in its text and music, and explores its dialogic relationship with a chanson by Andrieu de Contredit. Chapter Three examines her jeu-parti, and I argue that its conversation centers its two women authors in a broader social dialogue concerning the connections between desire, agency, pain, and mental health. The music of the song is also constructed as an illustration of the process of debate itself. The information we gain by examining Maroie’s music, poetry, and identity has implications for future research and may assist in learning about other trouvères.
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