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Articles 781 - 810 of 3160
Full-Text Articles in Life Sciences
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 …
Corn Grain Alternatives And Coated Versus Non-Coated Trenbolone Acetate And Estradiol Impants For Feedlot Finishing Animals: Influence On Growth Performance, Carcass Characteristics, Efficiency Of Dietary Net Energy Utilization, Beef Production Per Hectare And Digestiblilty, Elizabeth Buckhaus
Electronic Theses and Dissertations
Corn grain alternatives are often not used in finishing rations due to reduced caloric densities and reluctance to deviate from traditional methods. Along with optimum nutrition, cattle need to have proper implant strategies to reap maximum returns on investment. Two studies were conducted to evaluate the effects of corn grain alternatives and implant type on feedlot finishing cattle. The objective of the first study was to determine the influence of corn silage (15% or 30% dry matter inclusion), and terminal implant type (coated or non-coated) containing equal hormonal doses on animal growth performance, apparent total tract digestibility, beef production per …
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, …
Study On The Human Gut Bacteria Under Different Ecological Conditions: Antibiotic Perturbation And Dietary Quercetin, Shruti Shashidharan Menon
Study On The Human Gut Bacteria Under Different Ecological Conditions: Antibiotic Perturbation And Dietary Quercetin, Shruti Shashidharan Menon
Electronic Theses and Dissertations
The human intestine encompasses a vast community of microorganisms known as the gut microbiota that play a crucial role in maintaining health. Common perturbations such as changes in the normal diet, antibiotic treatment, and changes in environmental conditions can alter the gut microbiome. This can create dysbiosis in the gut leading to disease conditions. Therefore, it becomes important to determine the forces that influence the gut microbial ecology. In the first study, we focus on antibiotic perturbations on microbial succession and resilience in a synthetic consortium consisting of the most prevalent gut bacteria in humans. In addition, we investigated the …
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 …
Analysis Of Metabolites And Therapeutics For Toxic Inhaled Agent Exposure, Abigail Bemah Donkor
Analysis Of Metabolites And Therapeutics For Toxic Inhaled Agent Exposure, Abigail Bemah Donkor
Electronic Theses and Dissertations
The inhalation of toxic inhaled agents (TIAs) such as methyl isocyanate and cyanide can compromise an individual’s general health due to their extremely toxic nature. Nonetheless, these gases are used extensively in the electronics, chemical, welding, electroplating industries, etc., increasing the risk of exposure to both civilians and industrial workers. It is therefore very crucial to develop analytical methods for TIA metabolites and therapeutic agents. Methyl isocyanate (MIC), an intermediate in the synthesis of carbamate pesticides is a toxic industrial chemical that causes irritation and damage to the eyes, respiratory tracts, and skin. Due to its reactivity with proteins, protein …
Comparison Of Software Packages For Detecting Differentially Expressed Genes From Single-Sample Rna-Seq Data, Rong Zhou
Electronic Theses and Dissertations
RNA-sequencing (RNA-seq) has rapidly become the tool in many genome-wide transcriptomic studies. It provides a way to understand the RNA environment of cells in different physiological or pathological states to determine how cells respond to these changes. RNA-seq provides quantitative information about the abundance of different RNA species present in a given sample. If the difference or change observed in the read counts or expression level between two experimental conditions is statistically significant, the gene is declared as differentially expressed. A large number of methods for detecting differentially expressed genes (DEGs) with RNA-seq have been developed, such as the methods …
Spatial And Temporal Patterns Of Sympatric Bobcats (Lynx Rufus) And Coyotes (Canis Latrans) In An Agricultural Landscape, Marlin M. Dart
Spatial And Temporal Patterns Of Sympatric Bobcats (Lynx Rufus) And Coyotes (Canis Latrans) In An Agricultural Landscape, Marlin M. Dart
Electronic Theses and Dissertations
Bobcat (Lynx rufus) populations experienced declines in the Midwest during the 20th century due to land conversion for agriculture and over exploitation and were practically nonexistent in areas by the 1970-80s. Populations have been recovering following changes in land-use practices and habitat improvement. Eastern South Dakota was closed to bobcat harvest in 1977 but reopened in 2012 to select counties. Bobcats are elusive, have large home ranges, and occur at low densities, making monitoring their populations difficult. Camera trapping is an effective tool for monitoring elusive carnivores but can be burdened by low detection rates. Researchers often employ …
Revegetating Salt-Impacted Soils In The Northern Great Plains, Abigail P. Blanchard
Revegetating Salt-Impacted Soils In The Northern Great Plains, Abigail P. Blanchard
Electronic Theses and Dissertations
In the northern Great Plains (NGP), an estimated 10.6 million hectares of land are affected by naturally occurring salt-impacted soil. Naturally occurring salt impaction results when rainfall causes salts in parent material to move upward through the soil profile and remain in the root zone causing osmotic and ionic stress, negatively affecting seed imbibition, germination, and plant growth. Common methods to remediate saltimpacted soils were developed in the irrigated soils of the Southwestern U.S., are ineffective in the non-irrigated soils of the NGP, and can exacerbate the problem. Therefore, new methods to remediate salt-impacted soil in the NGP are needed. …
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 …
Effects Of Predator Management And Parasitism On Over-Water Nesting Diving Duck Production In Southwestern Manitoba, Trenton E. Rohrer
Effects Of Predator Management And Parasitism On Over-Water Nesting Diving Duck Production In Southwestern Manitoba, Trenton E. Rohrer
Electronic Theses and Dissertations
Nest survival of upland nesting waterfowl (e.g., mallard [Anas platyrhynchos], blue-winged teal [Anas discors]) has been studied extensively in the Prairie Pothole Region (PPR) of North America. Conversely, over-water nesting diving ducks’ nest survival is poorly understood, likely because over-water nests are more challenging to find, may be less concentrated, and searching for these nests is physically demanding. Nest depredation is considered a leading cause of duck nest failure and is considered a limiting factor on upland nesting waterfowl production in the PPR. Similar factors limiting upland nesting duck production may limit over-water nesting duck productivity, but studies of this …
Identification And Characterization Of Modulators Of Human Mrp1 (Abcc1) And Human Mrp2 (Abcc2) Expression, Vivian Osei Poku
Identification And Characterization Of Modulators Of Human Mrp1 (Abcc1) And Human Mrp2 (Abcc2) Expression, Vivian Osei Poku
Electronic Theses and Dissertations
ATP-binding cassette (ABC) transporters are known to play a critical role in conferring multidrug resistance (MDR) in various cancers. Several retrospective analyses of chemotherapy results have reported high expression of Multidrug Resistance Protein 1 (MRP1) and Multidrug Resistance Protein 2 (MRP2) in tumor cells exhibiting the MDR phenotype. High MRP1 and MRP2 expression in cancer patients predict a higher risk of treatment failure, resulting in relapse and disease recurrence as well as shortened survival rates. The key role of MRP1 and MRP2 play in the development of MDR makes them important therapeutic targets that hold a great promise for addressing …
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. …
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 …
Characterization Of Cucurbitacin-Inspired Estrone Analogues As Novel Inhibitors Of Human Atp- Binding Cassette Proteins (Abcb1 And Abcc1), Jennifer Kyeremateng
Characterization Of Cucurbitacin-Inspired Estrone Analogues As Novel Inhibitors Of Human Atp- Binding Cassette Proteins (Abcb1 And Abcc1), Jennifer Kyeremateng
Electronic Theses and Dissertations
ATP-binding cassette (ABC) transporters are a large class of integral membrane proteins that contribute to key physiological functions in all organisms by utilizing ATP binding and hydrolysis to transport diverse substrates across membrane barriers. P-glycoprotein (P-gp/ ABCB1) and Multidrug Resistance protein 1 (MRP1/ABCC1) are widely reported ABC transporters associated with multidrug resistance in cancer. Multidrug resistance (MDR) mediated by P-gp and MRP1 is responsible for treatment failures of many metastatic cancers as a result of reduced accumulation, bioavailability and diminished potency of anticancer drugs. Currently, known P-gp and MRP1 inhibitors are limited due to toxicity, lack of selectivity and low …
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 …
Assaying Bacillus Amyloliquefaciens Isolates 1ba And 1d3 For Biosurfactant Production And Utilization Of Petroleum Hydrocarbons And Phenolic Acids, Pavan Kulkarni
Electronic Theses and Dissertations
Several Bacillus amyloliquefaciens isolates obtained from wheat residue have been studied as biological agents to control wheat diseases. Notable traits of isolates 1BA and 1D3 include growth with high salt (10% NaCl), at temperatures up to 50°C and over a wide pH range. BIOLOG Gen III plates were used to study and further characterize Bacillus amyloliquefaciens 1BA and 1D3. Both isolates showed tolerance to high salt concentration supporting previous studies. They also grew in the presence of lithium chloride, potassium tellurite, and sodium bromate. Both isolates grew at pH 5, with almost identical carbon source utilization fingerprints. However, D-serine, quinic …
Influence Of Cover Crops On Water And Nutrient Cycles In South Dakota, Sam Ireland
Influence Of Cover Crops On Water And Nutrient Cycles In South Dakota, Sam Ireland
Electronic Theses and Dissertations
A major concern of farmers implementing cover crops into a crop rotation is a potential reduction in soil moisture and nutrients available for the following cash crop. If soil moisture or nutrients are limited, the following cash crop yield suffers. One option to conserve soil moisture is to terminate cover crops with herbicides prior to a killing freeze. The purpose of this study is to develop a better understanding of the impact of cover crops and termination timing to the water and nutrient cycles and furthermore, the agronomic impact to the following cash crop (corn). Field experiments were conducted in …
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 …
Quantifying Microbial Resistance To Nematode Predation, Tyler Bacon
Quantifying Microbial Resistance To Nematode Predation, Tyler Bacon
Electronic Theses and Dissertations
The selection pressure of predation has encouraged the development of defense traits that can make an individual species more environmentally stable. In addition to biotic pressures, abiotic factors could lead to disruption of predator-prey balance within ecosystems. Consequently, it is significant to better understand how environmental factors can influence predator-prey interactions and how responses may, in turn, affect communities. A current challenge within microbial communities is to understand which intraspecific traits associated with such defense strategies are important for microbial-prey responses to predation, and how the responses vary across environments revealing GxE interactions. In this study, I examined microbial-predator prey …
Describing The Gut Microbiome Of Amblema Plicata, Lauren Lawson
Describing The Gut Microbiome Of Amblema Plicata, Lauren Lawson
Electronic Theses and Dissertations
Freshwater mussels are important for nutrient cycling and ecosystem health, as they filter feed on their surrounding water column. This form of feeding makes these bivalves especially sensitive to conditions in their environment. Gut microbial communities (microbiomes) have been recognized as important to both host organism and ecosystem health; however, how microbiomes are organized and influenced is still unclear. In this study, the gut microbiomes of 58 individuals of the freshwater mussel Amblema plicata were compared across two river basins, five rivers, and nine sites in the southeastern USA. Planctomycetes, Firmicutes, and Cyanobacteria were the most common phyla within all …
Psychometric Evaluation Of Memory And Concentration Sections In The Standardized Assessment Of Concussion, Seungho Ryu
Psychometric Evaluation Of Memory And Concentration Sections In The Standardized Assessment Of Concussion, Seungho Ryu
Electronic Theses and Dissertations
The purpose of this study is to evaluate validate the memory and concentration sections of the Standardized Assessment of Concussion (SAC) from the SCAT5. Two studies were conducted. The first study examined item difficulty and discrimination using 10 new word lists of 3 versions in the immediate memory section using item analysis based on classical test theory and to equate scores earned on different versions of 10 word lists using test equating methods. The second evaluated the validity of digits backwards in the concentration section, and evaluated current and new scoring methods for the digit backwards. Two hundred young adults …
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) …
Microbial Community Responses To Salinification: Applications In Climate Change And Extreme Environments, Eric Weingarten
Microbial Community Responses To Salinification: Applications In Climate Change And Extreme Environments, Eric Weingarten
Electronic Theses and Dissertations
Sediment microbial community responses to elevated salinity are important in predicting the effects of sea level rise as well as in understanding those communities that can thrive in extreme environments. In this dissertation, I use natural and field experiments to investigate how salinity influences microbiome structure in coastal wetlands. Through the use of amplicon sequencing, I demonstrate that there are compositional differences between the microbiota of four wetland salinity classes: limnetic, oligohaline, mesohaline, and polyhaline. These results were reciprocated in a microcosm study exposing freshwater sediment to meso- and polyhaline conditions, showing that communities shifted proportionally to the magnitude of …
Evaluating Canola Genotypes For Growth And Yield Under Different Environmental Conditions In South Dakota, Unius Arinaitwe
Evaluating Canola Genotypes For Growth And Yield Under Different Environmental Conditions In South Dakota, Unius Arinaitwe
Electronic Theses and Dissertations
Canola (Brassica napus L) and carinata (Brassica carinata A. Braun) are potential oilseed crops for diversifying cropping systems and expanding into marginal lands impacted by saline and sodic soils in South Dakota (SD). However, genotypes that are high yielding, with high agronomic adaptability and stability over diverse environments, and salt tolerant have not been selected. One field experiment was conducted at two environments (Brookings - eastern SD and Pierre - western SD) from 2019 to 2020 to evaluate genotypes for growth and yield stability. Three greenhouse experiments were conducted to evaluate genotypes for salt tolerance in …
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 Integrative Analysis On The Role Of Notch1 And Notch3 In Musculoskeletal Disease, Haydee Magdalena Torres
An Integrative Analysis On The Role Of Notch1 And Notch3 In Musculoskeletal Disease, Haydee Magdalena Torres
Electronic Theses and Dissertations
Notch signaling is an evolutionarily conserved signaling pathway involved in cell fate decisions and cell renewal of multiple systems, including skeletal and muscle homeostasis. As the multifunctional nuclear complex of Notch1 is essential for its pathological function, identifying these interacting partners represents a potentially broad range of druggable vulnerabilities. We have completed a BioID proteomics study and found a large set of nuclear proteins associated with NOTCH1, including transcriptional regulators and epigenetic modulators, of which Histone Deacetylase 1 (HDAC1) is a promising interacting partner of Notch1. Our Cytoscape analysis predicted HDAC1 to be a top critical node in an activated …