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Studying Morphological, Physiological, And Molecular Regulation Of Stomatal Conductance And Its Relationship To Water Use Efficiency In Alfalfa, Surbhi Gupta
Electronic Theses and Dissertations
Alfalfa (Medicago sativa), being a leguminous, highly fibrous, and proteinaceous plant has always been one of the top choices for the forage production but has high cost of irrigation in many dry and warm areas such as California and Arizona. Thus, a reduction of irrigation by using the higher water use efficiency (WUE) varieties can help the growers in reducing the cost and is critical for sustainable agriculture production. WUE is closely related to water loss through transpiring stomata. A study in our lab reported that Riverside (RS) an alfalfa genotype that has naturized in the national grassland in South …
Influence Of Preharvest Management Strategies In Beef Cattle On Growth Performance, Carcass Characteristics, And Meat Quality, Erin Gubbels
Influence Of Preharvest Management Strategies In Beef Cattle On Growth Performance, Carcass Characteristics, And Meat Quality, Erin Gubbels
Electronic Theses and Dissertations
The overall goal of this thesis project was to better understand the influence of preharvest management strategies at critical growth and development periods on beef performance and meat quality. This was accomplished through two primary objectives: 1) to investigate the effects of maternal prepartum dietary energy source during mid- and late-gestation on growth performance, carcass composition, and meat quality of offspring and 2) to compare the influence of two low stress weaning methods with conventional weaning on post-weaning performance and carcass characteristics of steers. For objective 1, Angus-based cows from two sources (n = 129 from South Dakota State University, …
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 …
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 …
Strength And Body Composition Changes Of Junior Hockey Players During The Competitive Season, Dan Marquette
Strength And Body Composition Changes Of Junior Hockey Players During The Competitive Season, Dan Marquette
Electronic Theses and Dissertations
Purpose: This study investigated the body composition and strength changes of NAHL junior hockey players across a competitive season. It was hypothesized that players would lose lean body mass loss from pre-season to end-season. The secondary hypothesis was that players would lose strength in relation to the anticipated loss in lean body mass. Methods: Outcome measurements were taken at pre-season, mid-season, and endseason points of a competitive NAHL junior hockey season (n = 15, age = 19.1 years). Body composition was measured using air plethysmography (BodPod) and strength was measured using isokinetic strength testing (Biodex). Results: No significant changes in …
Genome Wide Association Study On Kernel Size In Avena Sativa (Oats), Koryne Ann Carlson
Genome Wide Association Study On Kernel Size In Avena Sativa (Oats), Koryne Ann Carlson
Electronic Theses and Dissertations
Kernel size is a vital milling characteristic for Avena sativa L. (oats), with larger kernel size being desirable for milling facilities. This project evaluated the effect of genotype, environment, and their genotype by environment interaction (G by E) on kernel width, length, and area for a set of 27 oat cultivars grown at multiple locations in South Dakota over three years. Findings indicated significant differences among oat varieties, and that environment had a substantial effect on kernel size. However, we did not see a strong influence of genotype by environment interaction on kernel size. The lack of impact for genotype …
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 …
Characterization Of The Rumen Bacterial Communities Of Bison Heifers Fed A Grass-Based Diet Vs A Grain-Based Free-Choice Diet, Anlly Miley Fresno Rueda
Characterization Of The Rumen Bacterial Communities Of Bison Heifers Fed A Grass-Based Diet Vs A Grain-Based Free-Choice Diet, Anlly Miley Fresno Rueda
Electronic Theses and Dissertations
A century ago, the North American grasslands and prairie ecosystems were dominated by bison. At least 30 million bison roamed the Great Plains when the first explorers arrived. By 1900, there were little over a thousand bison remained in the United States and Canada. Recovery efforts has been made since the 20th century to reestablish the herds and increase the bison population. Today, over 500,000 bison are distributed across North America, with more than 90% of the existing bison population under commercial production. Modern conservation strategies are made via the collaborative efforts of conservationist, producers, and researchers, resulting in increased …
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 …
Exploring Quantitative Trait Loci Mapping For Bud Fruitfulness And Bud Break Traits In Grapevine F2 Population, Seyma Bozkus
Exploring Quantitative Trait Loci Mapping For Bud Fruitfulness And Bud Break Traits In Grapevine F2 Population, Seyma Bozkus
Electronic Theses and Dissertations
Grapevine (Vitis vinifera L. subsp. vinifera) is one of the most important and valuable fruit crops around the world and grape industries in the USA have been growing increasingly regarding the demand for highly productive and quality grapes that can be grown in the cold region around the USA. The development of new cultivars with these features is performed through grape breeding with the help of quantitative trait loci (QTL) mapping, marker-assisted selection (MAS), and and other technologies. In this study, we evaluated grapevine bud fruitfulness by position and bud break in controlled conditions. These traits are multi-genetic and understanding …
Traditional And Local Food Procurement Motivators, Barriers, And Desires From Foodservice Directors In South Dakota Schools With High Enrollments Of Native American Students, Anna Barr
Electronic Theses and Dissertations
Purpose/Objectives: The objectives of the study were two-fold: 1) Determine the motivators and barriers to local food and local traditional food procurement among Food Service Directors (FSDs) of South Dakota (SD) schools serving Native American (NA) students, and 2) determine what traditional foods are desired for local procurement by the same population.
Methods: A cross-sectional survey design was used. An online survey was emailed to SD FSDs at 42 schools with high enrollments NA students. Eligibility was determined by 1) participation in National School Lunch Program (NSLP), and 2) >50% enrollment NA students. Motivators and barriers were determined by averaging …
Investigating The Development Of Fecal Bacterial Communities In Growing Dairy Calves, Emily Fowler
Investigating The Development Of Fecal Bacterial Communities In Growing Dairy Calves, Emily Fowler
Electronic Theses and Dissertations
The gut development of young calves is crucial for the producer and the calf's future. Many factors can affect the development of a young calf's gastrointestinal system, and there has been little research into the fecal microbiome development of calves from 0 to 12 weeks of age. To gain further insight into this process, development of the fecal microbiome in 12 dairy calves was investigated. Fecal bacterial composition was determined at four time points (weeks 0, 4, 8 and 12) using the 16S rRNA gene through PCR-amplification of the V1-V3 regions from fecal microbial genomic DNA, followed by Illumina MiSeq …
Improved Biochar Based Controlled-Release Nitrogen Fertilizers For Sustainable Corn Production, Robiul Islam Rubel
Improved Biochar Based Controlled-Release Nitrogen Fertilizers For Sustainable Corn Production, Robiul Islam Rubel
Electronic Theses and Dissertations
Nitrogen use efficiency (NUE) is an essential factor to increase crop yield. When conventional nitrogen fertilizer (e.g. Urea, Ammonium Sulphate, etc.) is applied in the field, generally over 50% of the N of these fertilizers may lose into the air due to vaporization, or run-off and leaching in rivers and lakes. The N losses lead to not only low NUE but also serious environmental problems. The consequence of N losses results in insufficient N available to meet the demand of crop growth at the growing stages. Lack of sufficient N for crop growth puts a threat of nutrient deficiency and …
Responses Of Predatory Myxobacteria To Prey Signaling Molecules & Features Of A Pseudomonas Prey Avoiding Predation, Shukria Akbar
Responses Of Predatory Myxobacteria To Prey Signaling Molecules & Features Of A Pseudomonas Prey Avoiding Predation, Shukria Akbar
Electronic Theses and Dissertations
Gram-negative unicellular myxobacteria, along with their multicellular lifestyle andbiologically active specialized metabolites, are known for the predatory interactions with Gram-negative/ Gram-positive bacteria and fungi. Although myxobacterial predation range have been exploited extensively, little is known about the prey associated molecules contributing to myxobacterial predator-prey dynamics. By employing transcriptomics and untargeted metabolomics approaches, we demonstrate two structurally distinct classes of signaling molecules from Gram-negative bacterial prey elicit significant omics responses from myxobacteria, Myxococcus xanthus and Cystobacter ferrugineus. An overlapping and general response to acylhomoserine lactones, whereas a distinctive response to a quinolone signaling molecule is observed from both myxobacteria. Similarly, by …
Responses Of Myxobacteria To Plant-Related Chemosignals Suggests Their Roles In The Rhizobiome, Barbara Iyare Adaikpoh
Responses Of Myxobacteria To Plant-Related Chemosignals Suggests Their Roles In The Rhizobiome, Barbara Iyare Adaikpoh
Electronic Theses and Dissertations
In the rhizosphere, plants curate and maintain distinct rhizobiome, some of which serve as secondary defense mechanisms against pathogenic microorganisms. Additionally, in response to biotic stress, plants generate phytohormones which regulate signaling pathways to activate systemic resistance. These phytohormones contribute to the chemical space within the rhizosphere in addition to other low-molecular-weight metabolites used for cell-to-cell communication within species and across kingdoms. However, little is known about the influences of stress-related phytohormones on beneficial bacteria even though biocontrol strategies abundantly explore plant-beneficial microorganisms to manage pathogens in agricultural systems. Myxobacteria are competent predators of plant pathogens and have demonstrated responses …
Measuring The Value Of Internal Corporate Events From Attendees’ Perspective: Multidimensional Scale Development, Inna Soifer
Measuring The Value Of Internal Corporate Events From Attendees’ Perspective: Multidimensional Scale Development, Inna Soifer
Electronic Theses and Dissertations
Purpose – Business events is a trillion-dollar sector of the meetings and events industry that supports millions of jobs. Despite the social and economic impact of the meetings, expositions, events, and conventions, only a few studies have examined perceived value in the business events context. This study addresses this research gap by developing a multi-item, multidimensional scale assessing attendee perception of corporate event value.Design/methodology/approach – This study utilized a mixed-method approach and followed widely accepted psychometric scale development procedures. The scale was developed using a multistep process: item generation, expert review, development sample 1 of 506 respondents via Qualtrics Online …
A Latent Class Analysis Predictive Modeling Approach To Profile Division I Collegiate Athletes For Nutrition And Relative Energy Deficiency In Sport (Red-S) Concern, Morgan Delventhal
A Latent Class Analysis Predictive Modeling Approach To Profile Division I Collegiate Athletes For Nutrition And Relative Energy Deficiency In Sport (Red-S) Concern, Morgan Delventhal
Electronic Theses and Dissertations
Screening collegiate athletes for nutrition-related concerns and low energy syndromes such as Relative Energy Deficiency in Sport (RED-S) provides insight for nutrition care and can lead to necessary referrals in the sports medicine team. Screening may be a part of an athletic department’s protocol, but there is a lack of consensus on a validated tool for this population. The goal of this cross-sectional research was to use a Latent Class Analysis (LCA) predictive modeling approach to determine classes of collegiate athletes who present with nutrition and RED-S concern. LCA is a person-centered approach, intending to uncover subgroups of a population …
We Make The Path By Walking Together: A Case Study Of How Community Engagement At The University Of Mississippi Impacts Students And Community Partner Organizations, Laura Martin
Electronic Theses and Dissertations
The community engagement field has grappled with critical questions around its failure to effectuate institutional change that will permit colleges and universities to create a more just society. At the same time, the University of Mississippi has struggled to reconcile its own institutional legacy of forced integration alongside an ambitious public mission in a state recognized for persistent poverty and inequality.
Just Southern Food: Food Justice For The Mississippi Delta, Christian Tabor Owen
Just Southern Food: Food Justice For The Mississippi Delta, Christian Tabor Owen
Electronic Theses and Dissertations
The primary objective of this research is to promote food justice for the Mississippi Delta by investigating facts about the intersections of extreme poverty, food insecurity, and chronic illness in the Mississippi Delta. By exploring relevant literature and highlighting current initiatives, this work looks at the semantics of food justice and related terms, discusses challenges unique to the Mississippi Delta, and broadly characterizes public health models with the greatest potential for food justice advancement in this region. Pivotal to interpreting food justice not only for the Mississippi Delta or the Global South, but for any community, is a clear understanding …
Effectiveness Of An Educational Intervention To Reduce Ageism In Undergraduate Students In An Entry-Level Nutrition Class, Ann Irvin Armstrong
Effectiveness Of An Educational Intervention To Reduce Ageism In Undergraduate Students In An Entry-Level Nutrition Class, Ann Irvin Armstrong
Electronic Theses and Dissertations
Although the older adult population continues to increase, ageism remains an issue in the healthcare system and is prevalent among nutrition-related professionals. The aim of our study is to is determine the effectiveness of an educational intervention to reduce ageism among pre-healthcare professionals including Nutrition major students. Undergraduate students enrolled in an entry-level nutrition class were recruited and randomized into an intervention (INT) group (n=30) and a control (CON) group (n=29). The online educational intervention consisted of pre-recorded lectures and videos regarding ageism and myths regarding aging for the INT group, and on cultural competency and biases (other than ageism) …
Developing Whey Protein Encapsulated Probiotics And Evaluating Environmental Listeria Using Whole-Genome Sequencing, Shayanti Minj
Developing Whey Protein Encapsulated Probiotics And Evaluating Environmental Listeria Using Whole-Genome Sequencing, Shayanti Minj
Electronic Theses and Dissertations
In this study, a novel value-added dairy-based health formulation was developed using whey protein hydrolysate and probiotic organisms. In the first part of the study, different forms of whey proteins, concentrate WPC80, isolate WPI90, and hydrolysates WPH10, WPH15 and WPH20 were screened for bioactivities (antimicrobial, antioxidant, and antihypertensive activity). Hydrolysate WPH10, exhibiting the highest bioactivities was conjugated with maltodextrin. A batch of 2L conjugated solution was spray dried in a Niro drier with an inlet and outlet temperature of 200⁰C and 90⁰C, and alternatively, freeze dried at −80 °C under 50 mTorr vacuum. The bioactivities of the conjugated samples were …
School Gardening In America And A Survey Of South Dakota Schools, Aminah Hassoun
School Gardening In America And A Survey Of South Dakota Schools, Aminah Hassoun
Electronic Theses and Dissertations
School gardening has a longstanding history in American education, dating as far back as the mid-1800s. Despite fluctuations in popularity throughout the twentieth century, school gardens have grown into an established method for hands-on teaching. This paper builds upon a historical framework of school gardening in American public education with particular focus on the connections between school gardens and agricultural education. This study offers a descriptive portrait of contemporary K-12 school gardens in South Dakota. Schools across the state were surveyed about their gardens to gain a better understanding of garden-based teaching in practice both in general education and agricultural …
An Exploration Of The Effects Of An Early Postpartum Intravenous Infusion With Carnosic Acid On Physiological Responses Of Transition Dairy Cows, Tainara Michelotti
An Exploration Of The Effects Of An Early Postpartum Intravenous Infusion With Carnosic Acid On Physiological Responses Of Transition Dairy Cows, Tainara Michelotti
Electronic Theses and Dissertations
The transition period is commonly defined as the last 3 wk before parturition to 3 wk after parturition. It is the most critical stage of the lactation cycle of high-producing dairy cows. The period consists of a complex interplay of metabolic and hormonal adaptations, inflammation, and immune activation. During the transition period, dairy cows commonly face oxidative stress, an underlying factor for dysfunctional immune response and enhanced inflammation, which can further increase the susceptibility of dairy cattle to health disorders and decrease productivity. In the last few decades, there has been an increased interest in studying alternative natural compounds with …
Association Between Prepregnancy Obesity And Health Behaviors, Adverse Conditions, And Birth Outcomes In South Dakota, Lily Sanderson
Association Between Prepregnancy Obesity And Health Behaviors, Adverse Conditions, And Birth Outcomes In South Dakota, Lily Sanderson
Electronic Theses and Dissertations
Introduction: Prepregnancy obesity is associated with an increased risk for various adverse outcomes for mother and fetus. These adverse associations exist within the realms of preconception health, prenatal health, birth outcomes, and postnatal health.
Methods: This retrospective cohort study used data from the South Dakota Pregnancy Risk Assessment Monitoring System (SD PRAMS) survey, which is an ongoing statebased surveillance system of maternal behaviors, attitudes, and experiences before, during, and shortly after pregnancy. The 2017 and 2018 SD PRAMS sampled a total of 3,805 mothers who were randomly selected from birth certificate records to be representative of all South Dakota women …
Nmr-Based Characterization Of A Glucan Isolated From Ganoderma Lucidum, Alysia Gonzales
Nmr-Based Characterization Of A Glucan Isolated From Ganoderma Lucidum, Alysia Gonzales
Electronic Theses and Dissertations
Ganoderma lucidum is a polypore fungus commonly known as Lingzhi, Youngji or Reishi mushroom in East Asia. It is frequently marketed as an herbal supplement and often utilized as traditional Chinese medicine. Our research comprises the structural investigation of the principal polysaccharide from this fungus. After proper purification, the fungal glucan was subjected to multiple experiments of NMR spectroscopy, including 1D 1H and 13C, 2D; 1H-1H COSY, 1H-1H TOCSY, 1H-1H NOESY, 1H-13C HSQC, 1H-1H Phase Sensitive-TOCSY, and 1H-13C TOCSY-HSQC NMR spectra. Data has confirmed that this fungal polysaccharide contains residues of glucose (91.31%) as major, galactose (4.99%), and mannose (3.69%) …
The Black Petromodernism Of Zora Neale Hurston: Energy, Race, And Mobility, Stuart Mullet
The Black Petromodernism Of Zora Neale Hurston: Energy, Race, And Mobility, Stuart Mullet
Electronic Theses and Dissertations
This thesis situates Zora Neale Hurston and the folk communities in her oeuvre within the context of modernity’s dependencies on fossil fuels. Such a disciplinary context provides an energy footing for our understandings of African American migrations in the twentieth century—which radically transformed the nation on multiple levels—and it illuminates the communal values that undergird Black approaches to petromodern forms of mobility. Furthermore, by engaging the Black spaces of the South, my argument begins filling a gap in the energy humanities. Few scholars in this field engage deeply those populations and regions that disproportionately experience the underbelly of petromodernity and …
Development And Characterization Of Albuterol Sulfate Loaded Transdermal Patches With Hme Coupled Fdm 3d Printing, Bhavana Chivukula
Development And Characterization Of Albuterol Sulfate Loaded Transdermal Patches With Hme Coupled Fdm 3d Printing, Bhavana Chivukula
Electronic Theses and Dissertations
Albuterol sulfate is a short-acting selective Beta 2 Adrenergic agonist. It is used to treat and prevent bronchospasm associated with asthma, bronchitis, and other breathing disorders. It is known to show extensive first pass metabolism and it requires frequent dosing which makes it difficult for patients to comply. To avoid these problems, transdermal route of delivery of Salbutamol was explored. Traditional methods of preparation of transdermal drug delivery systems involve the use of solvents and have multiple processing steps. To avoid the usage of solvents and decrease the processing steps, HME Coupled FDM 3D printing can be used. Different polymers …
Analysis Of Trends And Effects Of Lifestyle Behaviors Related To Obesity Among Older Adults: Findings From The National Health And Nutrition Examination Survey (Nhanes) Between 2005-2018, Xi Jin
Electronic Theses and Dissertations
Obesity in older adults is a public health challenge in the United States and many regions of the world. This study analyzed data from the National Health and Nutrition Examination Survey (NHANES) ranging between 2005-2006 to 2017-2018 to examine associations between lifestyle behaviors and obesity, and identify trends and contributions of lifestyle behaviors in older adults. A total of 5,812 participants in a body mass index (BMI)- based obesity group and 5,655 participants in a waist circumference (WC)-based obesity group were selected for association and trend analyses. Logistic regression was applied to estimate the associations between lifestyle behaviors and obesity. …
Quantifying The Impacts Of An Integrated Crop-Livestock System On Plant Nutrient Accumulation, Crop Yield, And Economic Performance, Teerath Singh Rai
Quantifying The Impacts Of An Integrated Crop-Livestock System On Plant Nutrient Accumulation, Crop Yield, And Economic Performance, Teerath Singh Rai
Electronic Theses and Dissertations
Integrated crop-livestock systems (ICLs), if managed properly, have the potential for enhancing crop production and economics. Cover crops in ICL can be grazed to provide feed for livestock and improve nutrient recycling. This dissertation focused on assessing the impacts of ICL on crop yield and economics using field and modeling studies. Specific objectives of this dissertation are: (i) evaluating the impacts of the ICL on crop yield, and economic performance in a 3-yr oat (Avena sativa L.) – maize (Zea mays L.) – soybean (Glycine max (L.) Merr.) rotation, (ii) assessing the impacts of the ICL on maize biomass accumulation, …
Improvements In Timing Variables For The Timed Up And Go And Its Subphases Following A Progressive Resistance Training Program, Shelby Kasch
Improvements In Timing Variables For The Timed Up And Go And Its Subphases Following A Progressive Resistance Training Program, Shelby Kasch
Electronic Theses and Dissertations
Purpose: To evaluate the effectiveness of progressive resistance training (PRT), with the inclusion of balance and stretching exercises, on the timed up and go (TUG) task. Specifically, we investigated the TUG in regard to changes in timing variables for the entire movement and the subphases, in association with muscular strength, ambulation, fatigue, and perceived disability in patients with Multiple Sclerosis (PwMS).
Methods: Fifteen PwMS volunteered twice weekly for a twelve-week PRT exercise training program. The participants underwent an assessment at baseline (strength assessments using a Biodex dynamometer and one repetition max (1RM); the TUG and its subphases using Qualysis Track …