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Articles 1 - 24 of 24
Full-Text Articles in Social and Behavioral Sciences
U.S. Consumers' Acceptance And Willingness To Pay For Genetically Modified And Genome-Edited Foods, Bindu Paudel
U.S. Consumers' Acceptance And Willingness To Pay For Genetically Modified And Genome-Edited Foods, Bindu Paudel
Electronic Theses and Dissertations
Even though genetically modified (GM) crops have a lot of economic potential for producers and consumers, they have not been widely accepted due to increasing concerns related to food safety, human, animal, and environmental health. Unlike GM technology, genome-editing technology does not involve the transfer of genetic materials. It is simpler, cheaper, more precise, and faster relative to GM technology and has immense potential for incorporating producer and consumer traits. Genome-editing technology, as a novel process, not has been explored much from the consumer’s side. This study uses a nationally representative survey of 1,573 U.S. consumers to examine their acceptance …
Genetically Modified Corn Diffusion And Biofuel Usage: Impacts On Corn Belt Cropping Systems Changes, Kenneth Annan
Genetically Modified Corn Diffusion And Biofuel Usage: Impacts On Corn Belt Cropping Systems Changes, Kenneth Annan
Electronic Theses and Dissertations
The adoption of genetically modified (GM) crops, the rise of ethanol production that produced an additional derived demand for corn, and the increasingly prominent position of corn and soybeans in crop rotations embody major changes in U.S. agriculture during the past decades. This study investigates the linkages among these developments in two ways. First, we look at how biotechnology and biofuels have influenced cropping system changes in the Corn Belt region of the United States, using state-level data from 2000 to 2019. Second, we investigate the determinants of corn acreage intensification levels and heterogeneity at the state level using data …
Sea Level Rise Impacts On The City Of Cape Coral, Southwest Florida From 2020 To 2050, Jawata Afnan Saba
Sea Level Rise Impacts On The City Of Cape Coral, Southwest Florida From 2020 To 2050, Jawata Afnan Saba
Electronic Theses and Dissertations
Sea level rise, a consequence of global climate change, has been affecting the U.S. coasts with flooding and exacerbated storm surges. Florida is highly vulnerable because it has low-lying topography and coastlines on both the Atlantic Ocean and the Gulf of Mexico. The City of Cape Coral, Southwest Florida, is known as a ‘waterfront wonderland’ with 400 miles of canals that provide waterfront property to the residents. Most of the canals are navigable, and many have access to the Gulf of Mexico. The city is vulnerable to sea level rise because of its canals, site between the Matlacha Pass and …
Impacts Of Zero-Commission Trading On Stock Market Liquidity, Jie Hu
Impacts Of Zero-Commission Trading On Stock Market Liquidity, Jie Hu
Electronic Theses and Dissertations
With the elimination of commission fees of retail brokers, zero-commission trading became the new normal after October 2019. This study employs DTAQ data to calculate ten different market liquidity measures and finds that the implementation of zero-commission trading significantly improves market liquidity. This effect is also significant after related factors including trading volume, price volatility, market performance, opening effect, and closing effect are controlled. By explicitly modeling the simultaneity nature among market liquidity measures, trading volume, and price volatility, this study finds that there is a positive relationship between spread and price volatility. The implementation of zero-commission trading decreases price …
Classification And Evaluation Of Extended Pics (Epics) On A Global Scale For Calibration And Stability Monitoring Of Optical Satellite Sensors, Juliana Maria Fajardo Rueda
Classification And Evaluation Of Extended Pics (Epics) On A Global Scale For Calibration And Stability Monitoring Of Optical Satellite Sensors, Juliana Maria Fajardo Rueda
Electronic Theses and Dissertations
As targets for the calibration and monitoring of optical satellite sensors, historically stable areas across North Africa have been used, known as Pseudo Invariant Calibration Sites PICS. However, two major drawbacks exist for these sites; first is the dependency on a single location to be always invariant, and second is the limited amount of observation achieved using these sites. As a result, longer time periods are needed to construct a dense data set to assess the radiometric performance of on-orbit optical sensors, and be convinced that the change detected is sensor-specific rather than site-specific. This work presents a global land …
Detection Of Change Points In Pseudo-Invariant Calibration Sites Time Series Using Multi-Sensor Satellite Imagery, Neha Khadka
Detection Of Change Points In Pseudo-Invariant Calibration Sites Time Series Using Multi-Sensor Satellite Imagery, Neha Khadka
Electronic Theses and Dissertations
The remote sensing community has extensively used Pseudo-Invariant Calibration Sites (PICS) to monitor the long-term in-flight radiometric calibration of Earth-observing satellites. The use of the PICS has an underlying assumption that these sites are invariant over time. However, the site’s temporal stability has not been assured in the past. This work evaluates the temporal stability of PICS by not only detecting the trend but also locating significant shifts (change points) lying behind the time series. A single time series was formed using the virtual constellation approach in which multiple sensors data were combined for each site to achieve denser temporal …
Interrogating The Socio-Ethical Dilemmas Of Precision Agriculture Technologies, Ayorinde Ogunyiola
Interrogating The Socio-Ethical Dilemmas Of Precision Agriculture Technologies, Ayorinde Ogunyiola
Electronic Theses and Dissertations
Farming has moved into a digital age where data and information are available to farmers to make informed agronomic and financial on-farm decisions. The development of precision agriculture (PA), such as big data technologies and machine learning algorithms is transforming the agricultural food production system in diverse ways, economically, environmentally, and socially. Despite benefits afforded by PA to agricultural productivity and environmental sustainability, these technologies can raise unintended societal challenges that can also limit their adoption among farmers. PA is changing how farming is done, reconstructing farmers’ social identities, and influencing relationships between farmers, agronomists, and technology developers. This dissertation …
Exploring The Determinants Of Aspects Of Rotational Grazing In The U.S. Great Plains, Iftekhar Uddin Ahmed Chowdhury
Exploring The Determinants Of Aspects Of Rotational Grazing In The U.S. Great Plains, Iftekhar Uddin Ahmed Chowdhury
Electronic Theses and Dissertations
Pasture and rangeland make up about 45 percent of the agricultural land in the U.S. Great Plains and one of the most common form of mismanagement of this pasture is overgrazing. Which results in many detrimental effects on environment. Many practitioners endorsed Rotational grazing (RG) as an improved grazing management practice over season-long continuous grazing. The overall goal of the current study is to assess the certain aspects of using RG in the U.S. Great Plains. Using mail survey data of the of 874 beef cattle producers of North Dakota, South Dakota, and Texas, the study found that neighborhood practice, …
Are Us Government Foreign Aid Flows And Fdi Flows Intertemporally Related? An Investigation Of Twenty-Three Countries In Sub-Saharan Africa, Ravi Kumar Datt Panchagnula
Are Us Government Foreign Aid Flows And Fdi Flows Intertemporally Related? An Investigation Of Twenty-Three Countries In Sub-Saharan Africa, Ravi Kumar Datt Panchagnula
Electronic Theses and Dissertations
In this thesis, I test my central hypothesis that United States government foreign aid flows and FDI flows from anywhere in the world to Sub-Saharan Africa are intertemporally related; thus, I test to what extent FDI flows follow—and, thus, are caused by—aid flows or to what extent aid flows follow—and, thus, are caused by—FDI flows. My panel dataset includes twenty-three Sub-Saharan countries and spans 1991 to 2018. Based on the results of pooled-OLS and panel fixed-effects regressions, and panel Granger causality tests, I show that aid and FDI are intertemporally related. Additionally, Granger-causality is bidirectional: FDI Granger-causes United States government …
Using New And Long-Term Multi-Scale Remotely Sensed Data To Detect Recurrent Fires And Quantify Their Relationship To Land Cover/Use In Indonesian Peatlands, Yenni Vetrita
Electronic Theses and Dissertations
Indonesia has committed to reducing its greenhouse gases emissions by 29% (potentially up to 41% with international assistance) by 2030. Achieving those targets requires many efforts but, in particular, controlling the fire problem in Indonesia’s peatlands is paramount, since it is unlikely to diminish on its own in the coming decades. This study was conducted in Sumatra and Kalimantan peatlands in Indonesia. Four MODIS-derived products (MCD45A1 collection 5.1, MCD64A1 (collection 5.1 and 6), FireCCI51) were initially assessed to explore long-term fire frequency and land use/cover change relationships. The results indicated the product(s) could only detect half of the fires accurately. …
Food Insecurity And Affordable Housing, Domelaar A. A. Ouattara
Food Insecurity And Affordable Housing, Domelaar A. A. Ouattara
Electronic Theses and Dissertations
Food insecurity in household with children in the US is about 13.6 percent. Food insecurity among households with children headed by a single woman is 28.7 percent and among households with incomes below 185 percent of the poverty threshold (the Federal poverty line was $25,926 for a family of four in 2019) is 27.6 percent (USDA, 2019). This research is about the effect of affordable housing on food security in the United States. The data include observations on 50 states and Washington, D.C., from 2004 to 2017 resulting in a total sample of 714 observations. The research used the 50th …
Go Talk To Your Employee: A Sequential Mediation Analysis Of Leader Communication Frequency And Employee Turnover Intent, Max Weaver
Electronic Theses and Dissertations
Employee turnover has significant negative costs to healthcare organizations. While leadership communication styles and quality have been empirically supported to reduce turnover intentions, our understanding of specific modalities of leader intervention is not well understood. This paper sought to understand how the specific act of communication frequency reduces turnover. Through the lens of Leader-Member Exchange (LMX) and role dynamic theories, mediating effects of LMX quality and job satisfaction were investigated to further understand this proposed relationship in a sample of healthcare workers in the Midwest/US. Results indicate that communication frequency was negatively related to turnover intent. Furthermore, while LMX and …
What Am I?": Navigating Running Identity During Covid-19, Joshua Yeager
What Am I?": Navigating Running Identity During Covid-19, Joshua Yeager
Electronic Theses and Dissertations
This thesis attempted to answer how collegiate student-athlete runners navigated their running identity through the COVID-19 pandemic. This international health crisis served as an identity threat to the participants in this study as it cancelled outdoor track and field season in the spring of 2020. The main goal was to investigate how student-athlete runners navigated their athletic identity during COVID-19 and the social and psychological costs associated with said navigation. Utilizing in-depth semi-structured interviews, I collected data from five male and five female collegiate distance runners, from the same university. With grounded theory approach and identity theory as a theoretical …
Quantifying The Impacts Of Land Use, Management And Climate Change On Water Resources In Missouri River Basin, Arun Bawa
Electronic Theses and Dissertations
A location-specific evaluation of hydrological landscape responses concerning past and projected climate and land use land cover (LULC) changes can provide a powerful intellectual basis for developing efficient and profitable agroecosystems, and overcoming uncertain and detrimental consequences of LULC and climate shifts. This dissertation assessed the impacts of land use, management, and climate change on water resources in the Missouri River Basin (MRB) through four specific studies that included: (i) to study the responses of leached nutrient concentrations and soil health to winter rye cover crop (CC) under no-till corn (Zea mays L.)-soybean [Glycine max (L.) Merr.] rotation, (ii) to …
Extended Pseudo Invariant Calibration Site-Based Trend-To-Trend Cross-Calibration Of Optical Satellite Sensors, Prathana Khakurel
Extended Pseudo Invariant Calibration Site-Based Trend-To-Trend Cross-Calibration Of Optical Satellite Sensors, Prathana Khakurel
Electronic Theses and Dissertations
Satellite sensors have been extremely useful and are in massive demand in the understanding of the Earth’s surface and monitoring of changes. For quantitative analysis and acquiring consistent measurements, absolute radiometric calibration is necessary. The most common vicarious approach of radiometric calibration is cross-calibration, which helps to tie all the sensors to a common radiometric scale for consistent measurement. One of the traditional methods of cross-calibration is performed using temporally and spectrally stable pseudo-invariant calibration sites (PICS). This technique is limited by adequate cloud-free acquisitions for cross-calibration which would require a longer time to study the differences in sensor measurements. …
Use And Improvement Of Remote Sensing And Geospatial Technologies In Support Of Crop Area And Yield Estimations In The West African Sahel, Kaboro Samasse
Use And Improvement Of Remote Sensing And Geospatial Technologies In Support Of Crop Area And Yield Estimations In The West African Sahel, Kaboro Samasse
Electronic Theses and Dissertations
In arid and semi-arid West Africa, agricultural production and regional food security depend largely on small-scale subsistence farming and rainfed crops, both of which are vulnerable to climate variability and drought. Efforts made to improve crop monitoring and our ability to estimate crop production (areas planted and yield estimations by crop type) in the major agricultural zones of the region are critical paths for minimizing climate risks and to support food security planning. The main objective of this dissertation research was to contribute to these efforts using remote sensing technologies. In this regard, the first analysis documented the low reliability …
Broccoli Over Brownies: Factors Affecting Healthy Food Choices For Low Income Residents Of Sioux Falls, South Dakota, Aileen Patricia Profir
Broccoli Over Brownies: Factors Affecting Healthy Food Choices For Low Income Residents Of Sioux Falls, South Dakota, Aileen Patricia Profir
Electronic Theses and Dissertations
The world is on the cusp of a nutritional crisis: malnutrition, in all its forms, now directly affects one in three persons on the planet. Chronic malnutrition is closely associated with a wide range of public health issues such as stunted growth, increased incidence of disease, school or work absences, and obesity. Access to proper nourishment for food insecure individuals is often evaluated as a measure of distance to market, yet a causal relationship between proximity to food resources and improved health outcomes is unclear. Multiple dimensions of food access influence fruit and vegetable consumption for those who are food …
A Study Of Geographic Information System-Based Watershed Processing For Hydrologic Analysis Of Ungauged Watersheds, Philip Adanbe Adalikwu
A Study Of Geographic Information System-Based Watershed Processing For Hydrologic Analysis Of Ungauged Watersheds, Philip Adanbe Adalikwu
Electronic Theses and Dissertations
The increasing application of geographic information system (GIS) technology in watershed modeling makes is necessary to further evaluate its impacts on runoff characteristics as a basis for improved hydrologic analysis in ungauged watersheds. Experts in the field of water resources and hydrology have recommended the practice of subdivision when modeling a watershed, and the use of observed data from hydrologically similar watershed to calibrate and validate an ungauged watershed’s model. However, previous studies have failed to adequately address the issues of watershed heterogeneity, spatial and temporal variability in physical parameters, GIS data resolution issues, including artifacts in automated extraction of …
Veracious Verdicts: An Expansion Of Cognitive-Experiential Self-Theory In Jury Decision-Making Using Attribution Theory, Jade E. Larson
Veracious Verdicts: An Expansion Of Cognitive-Experiential Self-Theory In Jury Decision-Making Using Attribution Theory, Jade E. Larson
Electronic Theses and Dissertations
As a pillar in our judicial system, the courts utilize almost ten million citizens each year for jury service. As a result, the courts are faced with issues of inconsistency and unpredictability. This study aims to examine some factors that significantly influence jury decision-making by investigating cognitive experiential self-theory (CEST) as a jury decision-making model, unified with attribution theory to better predict verdict outcomes. An online survey was distributed to 121 participants. The respondents were asked to read a civil trial case presentation; they were then randomly divided into two conditions (high and low unrelated detail eyewitness testimony). The testimonies …
Estimating The Impacts Of Acculturation On The Health Of Immigrants In The United States, Tingting He
Estimating The Impacts Of Acculturation On The Health Of Immigrants In The United States, Tingting He
Electronic Theses and Dissertations
The growth in the immigration population in the U.S. has transformed American demographic profile and has led to magnification in health disparities in the United States. The main purpose of this dissertation is to examine the relationship between acculturation and health behavior, mental health outcomes, and access to health care service among immigrants in the U.S. Relying on the acculturation framework, the dissertation intends to increase the understanding of health disparities and health patterns among immigrants. The dissertation utilizes the secondary data from National Health Interview Survey (NHIS) data to examine the effects of acculturation on health of immigrants. Measures …
Predictors Of Faculty Retention And Turnover Intent In State System Institutions: An Institution's Work Environment (Organizational Structure) Impacts On Faculty Gender Composition And Intention To Leave Or Stay, Joyce Eduful
Electronic Theses and Dissertations
Retaining high-quality and competent faculty members requires academic institutions authorities to understand the institutional factors that determine faculty retention and turnover intent to help implement sound policies and practices to maintain these faculty members in academia. This research examined the institutional work dimensions related to faculty job satisfaction and intention to leave or stay, particularly in state system institutions. Survey data were garnered as part of the National Science Foundation (NSF) ADVANCE PLAN-IHE grant project and were administered through various institutions' representatives of the NSF ADVANCE PLAN-IHE grant program and were commissioned to work with their provosts to distribute the …
A Joint Estimation Of Pheasant Hunting Parameters, Rama Khadka
A Joint Estimation Of Pheasant Hunting Parameters, Rama Khadka
Electronic Theses and Dissertations
The decreasing pheasant population from 2008 to 2019 across South Dakota is a concern as it may lead to decreased hunting activity and consequently reduced economic activity. Past studies have shown that changes in the landscape (e.g., from changing agricultural practices) is a major factor responsible for decreasing the bird population. However, these studies lack a clear understanding of how the fluctuating crop mixes impact the pheasant population together with harvest volume. The goal of this study was to analyze the pheasant population and the quantity of harvested birds during 2008 to 2019 in South Dakota to understand how variations …
Quantifying The Benefits Of The Expanded Food And Nutrition Education Program (Efnep) Using Biomarkers For Chronic Disease Risk, Richard Acquah-Sarpong
Quantifying The Benefits Of The Expanded Food And Nutrition Education Program (Efnep) Using Biomarkers For Chronic Disease Risk, Richard Acquah-Sarpong
Electronic Theses and Dissertations
The Expanded Food and Nutrition Education Program (EFNEP) is among the major nutrition education programs funded by the United States Department of Agriculture (USDA) with the aim of reducing food insecurity among low-income families. The program reaches about 70,000 adults and youth of low-income families in the US, District of Columbia, and six U.S. territories. Prior studies have used self-reported data, which possesses measurement errors, to estimate the benefits of the program. This can lead to underestimation or overestimation of results. To address this limitation, I use clinically measured objective biomarkers, such as body mass index (BMI), blood sugar level …
Encroachment: College Athletes’ Experiences With Identity Development As Affected By Media Representations Of Social Justice Demonstrations, Madison Remi Vanwalleghen
Encroachment: College Athletes’ Experiences With Identity Development As Affected By Media Representations Of Social Justice Demonstrations, Madison Remi Vanwalleghen
Electronic Theses and Dissertations
This study was conducted to understand how communication and identity are experienced by Black university athletes in asking about their experiences and how they gauge mainstream media portrayals of Black NFL athletes making verbal or physical statements about or in protest of social injustice, racism, and inequality in America. I interviewed five university athletes identifying as Black/African American or Mixed- Race using media representations of Black NFL athletes’ protests since the NFL has dominated mainstream media headlines regarding recent athletes’ protests, especially in connection to the Black Lives Matter social movement. I also used several theories to interpret the data …