Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 53 for “"2020 and 2021"”.
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Investigating Hops Production in Arkansas to Support Specialty Crop Growth
… on hops cultivar suitability, fertility, and management are needed for the U.S. mid-south region. Objectives of this research on Arkansas-grown hops were to 1) assess the impact of cultivar and fertility rate on plant and cone attributes of six cultivars of Arkansas-grown hops and 2) …
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The Influence of Sustained French Economic and Political Shelter in Post-colonial Mali and Senegal: A Comparative Case Study on Political Stability and Instability
… relationships with the former colonies of Mali and Senegal. Mali has been plagued with political instability, often leading to direct military interventions; its latest coups d'état occurred in 2020 and 2021. On the other hand, Senegal enjoys relative political stability. Hence, this study aims …
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Effects of Prescribed Fire Regimes on White-tailed Deer (Odocoileus virginianus) Browse, Forage, and Nutrient Availability in the Pineywoods Ecoregion of Texas
… browse availability, herbaceous production, and nutrient content. In 2020 and 2021, this study utilized 46 plots across East Texas to assess these habitat components. A stem count index survey method was used to assess browse utilization prior to April in both years, and preferred browse …
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Participatory Design in the Himalaya: Understanding Himalayan Home Cooking and Heating Practices
… Himalaya continue to use biomass-fueled cooking and heating arrangements, which have the potential to introduce harmful levels of household air pollution (HAP) and use fuels inefficiently. Utilizing participatory design practices, fifteen surveys were conducted in three villages in the Chakrata …
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Examining the Impact of Mercury on Waterfowl with Implications for Human Health and Water Management in Arid Environments
… amalgamation methods were used to extract silver and gold from ore deposits. Wood ducks frequently use this river system, and thus may be impacted by the Hg contamination in the system. Mercury is of concern due to the impacts that it has on wildlife and humans; these include neurotoxicity, …
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Behavior and Physiological Responses of Livestock Under Different Grazing Systems
… stress, particularly, compromises animal welfare and productivity, causing >$2B annual economic loss to producers. The presence of toxic alkaloids within tall fescue (Schedonorus phoenix syn Lolium arundinaceum, syn Festuca arundinacea) plants induces a complex of disorders collectively known as …
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Spatial Distributions of Domestic and Non-Domestic Violence by Firearm Involvement
… was domestic or not, firearm-involved or not, and any combination of these characteristics, to determine if disaggregation of the data into subgroups may aid in policy development. Data on murder, non-negligent manslaughter, and aggravated assault incidents reported to Austin Police Department …
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Relationship Between Grit, Academic Mindset, First-Year GPA, and Perceptions Related to Persistence for Non-Traditional College Students
… institutions, students, their families, and society. This study sought to explore the relationships between grit, academic mindset, first-year GPA, and the perceptions of students related to persistence. Braxton and associates’ Revised Theory of Student Departure in Commuter College and …
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Implications of emergency online learning in K-12 schools: a meta-synthesis
The COVID-19 pandemic caused an abrupt and widespread transition to emergency remote learning in K–12 schools globally, profoundly altering instructional delivery and learning experiences between 2020 and 2021. This qualitative meta-synthesis investigates the challenges of this transition by …
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Geoejector : extracting geothermal fluid from a low-pressure geothermal well
To utilize a low-pressure and low-enthalpy well, a subsonic ejector system (referred to as subsonic geoejector) was developed and tested at the Theistareykir Geothermal Field in 2020 and 2021. The system connected a low-pressure geothermal well to a nearby high-pressure well to induce flow from the …
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The impact of COVID-19 on poverty in South Africa
This paper analyses how the COVID-19 pandemic has impacted money-metric poverty in South Africa. Against a backdrop of already rising poverty-levels, the pandemic is expected to have a devastating impact on the most vulnerable population groups. Using the recently released 2020 and 2021 General …
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Problematising Extroversion in South African COVID-19 Lockdown Measures: a case study of women head of families' stories in Khayelitsha on the Cape Flats
… has been a lack of intersectional gender, race, and class analysis of the present COVID19 pandemic by the government and health organizations in South Africa. This study focuses on a small number of unheard voices of urban poor black women and their experiences of COVID-19 lockdown between 2020 …
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Analyzing Student’s Problem-solving Approaches in MOOCs using Natural Language Processing
… instructors improve their instructional designs and effectively guide the learning process of students. This thesis proposes a natural language processing (NLP) driven method to capture online learners’ problem-solving approaches while using Massive Open Online Courses (MOOCs) as a learning …
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Establishment of native plant species for livestock forage in silvopasture systems
Incorporating sustainable agriculture practices and environmental stewardship into existing forage-livestock systems is growing in popularity. This project takes a novel approach incorporating native rather than introduced forage species. Our objectives were to: determine success of establishment …
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Integrated pest management of squash bug, Anasa tristis, for conventional and organic cucurbit systems in Virginia
… mouthparts, squash bug feeds on both leaf tissue and fruits, potentially leading to leaf necrosis, seedling death, and yield loss. Currently, A. tristis management strategies in summer squash focus exclusively on insecticide applications. Given that continuous use of insecticides imposes negative …
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Zero-shot object-goal navigation using multimodal goal embeddings
… on three ObjectNav datasets (Gibson, HM3D, and MP3D) and observe absolute improvements in success of 4.2% - 20.0% over existing zero-shot methods. For reference, these gains are similar or better than the 5% improvement in success between the Habitat 2020 and 2021 ObjectNav challenge …
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K-12 Public School Teacher Perceptions Regarding their Experiences as Instructors Who Volunteered to Teach in the Online Learning Environment in 2020-2021 (COVID-19)
… learning is addressed in the context of the pandemic-related circumstances of 2020 and 2021. The study used a qualitative analysis of data sources in the form of one-on-one interviews. The study examined teachers' input regarding factors they believe impacted academic outcomes for students in …
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UNDERSTANDING THE IMPACTS OF TOPOBATHYMETRIC DATA ON STORM SURGE MODEL PREDICTIONS
… of a region are regularly altered by natural and anthropogenic causes. This directly impacts the resulting storm surge during a hurricane. The primary goal of this research was to gain a better understanding of the impact that topography and bathymetry have on storm surge models, particularly …
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Recovery from Minor Tropical Cyclones: the Response of Faith-based Organizations and Government Agencies to Minor Tropical Cyclones in Biloxi, Mississippi
… researched in Disaster Resilience literature and the field of Human Geography; in contrast, the aftermath of minor tropical cyclones is understudied. Along the Gulf Coast in 2020 and 2021, more minor tropical cyclones made landfall then major hurricanes (NOAA, 2021). Despite the frequency of …
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Diel and horizontal patterns in the densities of Bythotrephes, Chaoborus, and Leptodora in a Minnesota Reservoir
Understanding the simultaneous distributions of three invertebrate planktonic predators—Bythotrephes cederstroemii, Chaoborus punctipennis, and Leptodora kindtii—in one system can help describe food web dynamics and inform management decisions. The population densities of these three species were …
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