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Articles 931 - 960 of 4221
Full-Text Articles in Life Sciences
Thaniks For Letting Us Borrow Your Prairie! 10 Years Of Usfws Plant Id Training, Sara Vacek
Thaniks For Letting Us Borrow Your Prairie! 10 Years Of Usfws Plant Id Training, Sara Vacek
Oak Lake Field Station 30th Anniversary Retreat Presentations
No abstract provided.
Undergraduate Research And Teaching At Oak Lake Field Station, Lan Xu
Undergraduate Research And Teaching At Oak Lake Field Station, Lan Xu
Oak Lake Field Station 30th Anniversary Retreat Presentations
No abstract provided.
Jackrabbit Dairy And Food Review, Vikram V. Mistry
Jackrabbit Dairy And Food Review, Vikram V. Mistry
The Jackrabbit Dairy & Food Review
This is the Winter 2017- 2018 Jackrabbit Dairy and Food Review. It contains the following articles and information: Message from the Department Head, 2017 Graduates, David A. Thompson Endowment, New Faculty and Visitors, information on the Dairy Club and Food Science Club, Judging Activities, Student Accomplishments, Professional Activities of Faculty and Staff, Distinguished Alumni, Dairy Facilities, a list of Scholarships and Dairy and Food Science Students, information on Departmental Outreach and Research Highlights.
Development Of A Quantitative Measure Of Community Readiness For Change, Drew Hicks
Development Of A Quantitative Measure Of Community Readiness For Change, Drew Hicks
Health and Nutritional Sciences Graduate Students Plan B Capstone Projects
Introduction: Recruiting community involvement in public health interventions is often met with varying degrees of success. Attitudes, resources, and leadership all impact a community’s ability to effect change. Being able to assess community readiness for change is vital to the successful adoption of any health or wellness initiative. Past efforts in measuring community readiness have been largely limited. This study reports on the development and validation of a survey measuring community readiness to change for health and wellness in the college campus community.
Objective: To develop an instrument capable of measuring the attitudes and ability of a college campus …
Eucosma Giganteana (Riley) And Sliphium Perfoliatum L., Morphological Variation In An Insect-Plant Association In Eastern South Dakota, Paul J. Johnson, Arvid Boe, Abigail P. Martens
Eucosma Giganteana (Riley) And Sliphium Perfoliatum L., Morphological Variation In An Insect-Plant Association In Eastern South Dakota, Paul J. Johnson, Arvid Boe, Abigail P. Martens
Native Plant Focused Publications
Silphium perfoliatum L., cup plant, has potential as a new multi-purpose crop. It is pollinator-friendly and has biodiversity enhancement, conservation, economic, and medical potential. In eastern South Dakota, S. perfoliatum can produce more than 20 Mg (million grams) ha-1 of biomass and 0.09 Mg ha-1 of seed in agronomic plantings. The giant eucosma moth, Eucosma giganteana (Riley), is a major pest of agronomic S. perfoliatum in the region. We provide a summary of this insect and its association with its host. Our experimental objectives were to determine if the frequency of rhizome occupation by late instar larvae and if their …
Augmenting Land Cover/Land Use Classification By Incorporating Information From Land Surface Phenology: An Application To Quantify Recent Cropland Expansion In South Dakota, Lan Hoang Nguyen
Electronic Theses and Dissertations
Understanding rapid land change in the U.S. NGP region is not only critical for management and conservation of prairie habitats and ecosystem services, but also for projecting production of crops and biofuels and the impacts of land conversion on water quality and rural transportation infrastructure. Hence, it raises the need for an LCLU dataset with good spatiotemporal coverage as well as consistent accuracy through time to enable change analysis. This dissertation aims (1) to develop a novel classification method, which utilizes time series images from comparable sensors, from the perspective of land surface phenology, and (2) to apply the land …
Southeast South Dakota Experiment Farm Annual Progress Report, 2019, Southeast South Dakota Research Farm
Southeast South Dakota Experiment Farm Annual Progress Report, 2019, Southeast South Dakota Research Farm
Agricultural Experiment Station and Research Farm Annual Reports
This is an annual report of the research program at the Southeast South Dakota Research Farm in cooperation with South Dakota Agricultural Experiment Station and the SDSU College of Agriculture, Food, and Environmental Sciences and has special significance for those engaged in agriculture and the agriculturally related businesses in the ten county area of Southeast South Dakota. The results shown are not necessarily complete or conclusive. Interpretations given are tentative because additional data resulting from continuation of these experiments may result in conclusions different from those based on any one year
Perceptions Of Health Coaching And Its Associations With Personality Style And Weight Loss In Meal Replacement Program Participants, Bailey Judith Larson
Perceptions Of Health Coaching And Its Associations With Personality Style And Weight Loss In Meal Replacement Program Participants, Bailey Judith Larson
Electronic Theses and Dissertations
Purpose: To determine if personality style is related to perceptions of health coaching and if there is a relationship between perceptions of health coaching and the ability to lose weight. Methods: Data was gathered from approximately 2,000 MR program participants via an electronic survey. The Client Evaluation of Motivational Interviewing scale was used to determine if perceptions of health coaching affect the ability to lose weight. The Ten Item Personality Inventory was used to determine if personality style is associated with the perception of health coaching. Self-reported start weight and current weight were used to calculate percent of starting weight. …
Some Studies On Leaf Spot Of Oats And Triticale, Mohammed Abdullah Lashram
Some Studies On Leaf Spot Of Oats And Triticale, Mohammed Abdullah Lashram
Electronic Theses and Dissertations
Oat is an important cereal crop, and it is considered to be among the highest used in cereal crops. It is considered among the healthiest grains due to the rich source of the soluble fiber, β-glucan that helps in lowering the cholesterol. Oat production and demand have increased considerably in the past few years due to its health benefits. South Dakota is ranked in the top three largest oat-producing states in the USA. Oat is relatively less susceptible to pest and diseases except for leaf diseases such as crown rust, Drechslera avenae leaf spot, and Stagonospora avenae leaf blotch. Leaf …
Development And Evaluation Of Vaccine Candidates For Senecavirus A, Bishwas Sharma
Development And Evaluation Of Vaccine Candidates For Senecavirus A, Bishwas Sharma
Electronic Theses and Dissertations
Senecavirus A (SVA) has been associated with several outbreaks of vesicular disease (VD) since 2014 in major swine-producing countries around the world. The virus causes VD that is clinically indistinguishable from foot-and-mouth disease (FMD) in pigs. Currently there are no commercial vaccines available for SVA. Here, we developed a live attenuated SVA strain by mutating a wild type SVA strain SD15-26 (wt SVA). The live attenuated virus, rSVA mSacII, replicated less efficiently in cell cultures in vitro and expressed lower amounts of VP1 and VP2 capsid proteins than wt SVA. Most importantly, the rSVA mSacII virus failed to induce clinical …
Influence Of Sporulation And Germination Behavior Of Bacillus Licheniformis On Microbial Quality Of Skim Milk Powder, Nancy Awasti
Influence Of Sporulation And Germination Behavior Of Bacillus Licheniformis On Microbial Quality Of Skim Milk Powder, Nancy Awasti
Electronic Theses and Dissertations
This dissertation includes modeling of sporulation and germination behavior of Bacillus licheniformis strains during raw milk holding, tracking the survival of sporeformers and spores of high sporulating Bacillus strain during skim milk powder manufacturing. In addition, preliminary studies were done to standardize a rapid spore detection technique by using ratiometric fluorescence. To understand the role of strain variability during raw milk holding conditions, population dynamics of two strains of Bacillus licheniformis, ATCC 6634 and 14580, were modeled as a function of temperature (4.0 -12.0˚ C) and duration (0 - 72 h), using regression analysis. Based on initial spiking of vegetative …
Shrimp Production Environment And The Gut Microbiome: Effects Of Aquaculture Practices And Selective Breeding On The Gut Microbiome Of Pacific Whiteleg Shrimp, Litopenaeus Vannamei, Angela Landsman
Electronic Theses and Dissertations
Knowledge of the functional role of the gut microbiome in animal health and nutrition may provide solutions to shrimp aquaculture challenges, such as improving disease resistance and optimizing growth particularly with low cost feeds. Successful manipulation of bacteria found in the gut requires a deeper understanding of shrimp microbial communities and how their compositional structure is influenced by environmental conditions, and inherent host factors such as genetics. The initial research investigated the intestinal bacterial communities of the Pacific whiteleg shrimp (Litopenaeus vannamei) reared in pond systems compared to indoor aquaculture facilities as an exploration of the effects of aquaculture practices …
Novel Hybrid Analogs Of Estrone Origin Exhibits Cytotoxic Effects Against Egfr-Dependent Cancers, Felix Acheampong
Novel Hybrid Analogs Of Estrone Origin Exhibits Cytotoxic Effects Against Egfr-Dependent Cancers, Felix Acheampong
Electronic Theses and Dissertations
Cancer is second only to cardiovascular illnesses as the deadliest human disease globally. Currently, non-small cell lung cancer (NSCLC) and triple negative breast carcinoma (TNBC) are the most frequent types of cancer and have the highest mortalities. Epidermal growth factor receptor (EGFR), a central regulator of tumor progression, is frequently overexpressed in both cancers and is a key clinical target for therapeutic intervention. Natural products and their synthetic analogs have been utilized as EGFR tyrosine kinase inhibitors (TKIs) with potent antitumor effects. However, acquired resistance limits the long-term efficacy of these drugs. Estrone has been used as a scaffold in …
Effects Of Resistant Starch Type 4 On Gut Microbiota Derived Medium And Long Chain Fatty Acids And Bile Acids, Elizabeth Nagel
Effects Of Resistant Starch Type 4 On Gut Microbiota Derived Medium And Long Chain Fatty Acids And Bile Acids, Elizabeth Nagel
Electronic Theses and Dissertations
The human gastrointestinal tract is populated by a diverse and mutualistic microbial flora that has profound effect on human health. Identification and characterization of microbial-metabolites produced in response to human dietary intakes may provide insights into host-microbiota interactions to better understand the role of the microbiota in human health and diseases. However, much of this interaction is poorly understood as many metabolites remain unidentified or understudied at the present time. Starch is ubiquitously present in human diet and is a major energy source to all living cells. Resistant starch (RS) is the starch portion that is not absorbed in the …
Development And Characterization Of Wheat-Thinopyrum Junceiforme Chromosome Addition Lines, Dilkaran Singh
Development And Characterization Of Wheat-Thinopyrum Junceiforme Chromosome Addition Lines, Dilkaran Singh
Electronic Theses and Dissertations
Production of wheat is challenged by dynamic biotic and abiotic stresses. Genetic improvement via alien gene transfer is an effective approach to tackle such challenges. Alien gene transfer played an important role in the history of wheat crop improvement. Sea wheatgrass (SWG; Thinopyrum junceiforme, 2n = 28, genomes J1J1J2J2) is a wild relative of wheat. In our previous work, we have developed a complete amphiploid between cultivated emmer and SWG and shown that SWG is resistant to wheat streak mosaic virus, Fusarium head blight and wheat stem sawflies (due to the solid stem) and tolerant to waterlogging, salinity, heat, and …
Isolation And Identification Of Potential Bioinoculants Based On Phosphate Solubilizing And Plant Growth Promoting Benefits, Rachel Raths
Isolation And Identification Of Potential Bioinoculants Based On Phosphate Solubilizing And Plant Growth Promoting Benefits, Rachel Raths
Electronic Theses and Dissertations
Conservative models have shown that as populations rise, food production needs to double by 2050. Population increase and the green revolution have caused fertilizer inputs to increase since the 1960’s, increasing environmental issues and production costs. These intensive practices have led to degraded arable land and there has been an increase in urbanization meaning we need to make best use of the farming land that is available and ensure it is sustainable for future food production. Due to this, there has been a higher demand for research on more environmentally and economically friendly approaches to food production. Plant growth promoting …
Investigation Of Intergroup Bias In Two Neuromaturationally Distinct Age Cohorts: An Erp Study, Reuven M. Hanna
Investigation Of Intergroup Bias In Two Neuromaturationally Distinct Age Cohorts: An Erp Study, Reuven M. Hanna
Electronic Theses and Dissertations
Currently, sociological investigation of adolescent behavior focuses on the intersection of biography, history, and structure to explain adolescent risk-taking, reward-seeking, impulsivity, novelty-seeking and peer-salience. However, the preponderance of the evidence points away from social ecology and to a significant neuromaturational restructuring event between the 12th and 25th years of life as the root of adolescent behavioral tendencies. As a result, sociological social psychology can benefit from engaging in basic research using neuroscience methods. The present study expands the dual systems model of brain development to account for maturational changes in the social brain network as a way to explain social …
Model School Wellness Policies: Opportunities For Improvement, Maty Skinner
Model School Wellness Policies: Opportunities For Improvement, Maty Skinner
Electronic Theses and Dissertations
Schools that participate in the US Child Nutrition program are required to have a wellness policy. Many state agencies provide model wellness policies to aid schools in writing wellness policies. However, use of model wellness policies has not been associated with higher quality policies. PURPOSE: Assess the strength and comprehensiveness of model wellness policies and to determine if federal regulations are more likely to be included in model wellness policies than evidence-based, best-practices that are not required per federal regulation. METHODS: Model wellness policies available online through state agency websites in January 2019 were analyzed for comprehensiveness and strength using …
Hydrodynamic Cavitation As In-Line Process To Control Common Dairy Sporeformers, Pratibha Chaudhary
Hydrodynamic Cavitation As In-Line Process To Control Common Dairy Sporeformers, Pratibha Chaudhary
Electronic Theses and Dissertations
Sporeforming bacteria and their endospores have the ability to survive thermal treatments and proliferate in the milk and dairy products to cause spoilages. We applied the effect of hydrodynamic cavitation in controlling these bacteria and their spores at pilot scale level. Our aim was to investigate a technology that would improve the microbial quality of milk and dairy products, and is capable of being scaled up to be adapted at industrial level. Cavitation damages the cell walls of the bacteria and their endospores (releasing dipicolinic acid, responsible for endospore resistance to extreme conditions), thereby making them susceptible to thermal treatments …
Comparing Gut Microbiome And Virome In The Breast Milk- And Formula-Fed Late Preterm Infants, Zyi Wang
Comparing Gut Microbiome And Virome In The Breast Milk- And Formula-Fed Late Preterm Infants, Zyi Wang
Electronic Theses and Dissertations
The neonatal intestinal microbiome consists of all microorganisms in the gut. Although the microbiome is critical to human health and disease, its colonization remains incompletely understood, particularly in the preterm infant. We aimed to characterize the intestinal bacteria microbiome and virome in moderate-to-late preterm infants. We hypothesized that the bacteria microbiome and virome differs between breast milk and formula-fed infants. We collected stool samples from twenty infants born between 32 0/7 and 36 6/7 weeks gestation. Samples were collected after infants reached full volume enteral feedings. Ten infants were breast milk fed and ten received infant formula. DNA and RNA …
Greater Sage-Grouse Survival, Breeding Ecology, Resource Selection, And West Nile Virus Prevalence On The Eastern Fringe Of Their Range, Lindsey Anne Parsons
Greater Sage-Grouse Survival, Breeding Ecology, Resource Selection, And West Nile Virus Prevalence On The Eastern Fringe Of Their Range, Lindsey Anne Parsons
Electronic Theses and Dissertations
The greater sage-grouse (Centrocercus urophasianus) is a sagebrush (Artemisia spp.) obligate species that has experienced population declines over the past several decades. Sage-grouse are a species of conservation concern throughout the Intermountain West and are considered a species of greatest conservation need in South Dakota. Numerous studies have documented drivers of demographic performance at the core of their distribution; however, relatively few studies have examined sage-grouse inhabiting the eastern extent of their range, in South Dakota. We sought to examine sage-grouse space use in multiple seasons, estimate survival, and determine factors affecting nest success in South Dakota …
Preservice Agricultural Education Majors’ Perceptions Of Integrating Science Into Agriculture, Kasey Trocke
Preservice Agricultural Education Majors’ Perceptions Of Integrating Science Into Agriculture, Kasey Trocke
Electronic Theses and Dissertations
Agricultural science has seen a rise in secondary agricultural classrooms and many studies have been done with regards to integrating science into agriculture. Several recommendations have been to assist preservice agriculture education majors with science integration. Preservice agricultural education majors could influence the future of agricultural science due to their perceptions of integrating science into agriculture into the classroom. The purpose of the study was to assess preservice teachers’ perceptions of integrating science into agriculture curriculum based on the theory of planned behavior. An online survey was administered to the population of agricultural education majors at South Dakota State University. …
Efficacy Of Synthetic And Biopesticides On Bacteria Leaf Streak Management And Influence Of Cultivar And Environment On Epiphytic Bacteria Diversity On Wheat Seeds, Marilen Nampijja
Electronic Theses and Dissertations
Wheat (Triticum aestivum) is the most important staple food for over two billion people, or 36% of the world population. The United States ranks 4th in the world for wheat production. However, wheat production is faced by both biological and non-biological constraints. Among the biological constraints, diseases play a big role in limiting wheat production with estimated yield losses ranging from 20% to 40%. Bacterial leaf streak (BLS) of wheat caused by Xanthomonas translucens pv undulosa (Xtpvu) is one of the major bacterial diseases affecting the wheat production in most wheat growing regions in the USA. In recent years, it …
Differences In Running Mechanics And Tibial Plateau Dimensions Between Overweight/Obese And Healthy Weight Children, Claire Sylvestre
Differences In Running Mechanics And Tibial Plateau Dimensions Between Overweight/Obese And Healthy Weight Children, Claire Sylvestre
Electronic Theses and Dissertations
INTRODUCTION: Overweight and obese (OW/OB) children display increased knee joint loading during running, which may lead to excessive frontal plane motion and moments at the knee joints. The relationship between tibial plateau dimensions and knee vertical loading may explain the loading related injuries OW/OB children experience.
PURPOSE: Compare knee mechanics during running and tibial plateau dimensions between healthy weight (HW) and OW/OB children.
METHODS: Ten HW children and ten OW/OB children aged 9-12 participated in the study. Kinematic and kinetic data were captured as participants ran across a force platform at 3.5m/s. Tibial plateau area and density were collected by …
Characterizing Spatiotemporal Patterns Of White Mold In Soybean Across South Dakota Using Remote Sensing, Confiance L. Mfuka
Characterizing Spatiotemporal Patterns Of White Mold In Soybean Across South Dakota Using Remote Sensing, Confiance L. Mfuka
Electronic Theses and Dissertations
Soybean is among the most important crops, cultivated primarily for beans, which are used for food, feed, and biofuel. According to FAO, the United States was the biggest soybeans producer in 2016. The main soybean producing regions in the United States are the Corn Belt and the lower Mississippi Valley. Despite its importance, soybean production is reduced by several diseases, among which Sclerotinia stem rot, also known as white mold, a fungal disease that is caused by the fungus Sclerotinia sclerotiorum is among the top 10 soybean diseases. The disease may attack several plants and considerably reduce yield. According to …
Evaluation Of Feeding Alternative Feedstuffs Including Hydroponic Barley Sprouts And Carinata Meal To Dairy Cattle, Rhea D. Lawrence
Evaluation Of Feeding Alternative Feedstuffs Including Hydroponic Barley Sprouts And Carinata Meal To Dairy Cattle, Rhea D. Lawrence
Electronic Theses and Dissertations
The purpose of this dissertation research was to examine alternative feed ingredients not typically found in dairy cattle diets. In total, four studies were conducted to evaluate feedstuffs such as hydroponic barley sprouts and carinata meal and how they affect cattle performance. To determine how feeding hydroponic barley sprouts would affect growing dairy heifer and lactating cow performance two feeding studies were conducted. In the first study, inclusion of 14 % (DM basis) hydroponic barley sprouts (HYD) was evaluated in an ad libitum total mixed ration (TMR) compared to a control (CON) diet on dairy heifer performance during a 12 …
Effects Of Increasing Dietary Levels Of Carinata Meal On Feeding Behavior, Performance And Carcass Characteristics Of Beef Growing Steers, Alejandro C. Casella
Effects Of Increasing Dietary Levels Of Carinata Meal On Feeding Behavior, Performance And Carcass Characteristics Of Beef Growing Steers, Alejandro C. Casella
Electronic Theses and Dissertations
The objectives of the present study are to evaluate feeding behavior, animal performance and carcass characteristics of beef growing steers fed increasing amounts of carinata meal (CM). Due to the high protein content of the CM after the oil extraction for biofuel there is an opportunity to use it as a protein supplementation in beef cattle. Twenty-four steers blocked by weight were assigned to four corn-based diets (n = 6 animals per treatment). In the three treatment diets, carinata meal replaced high-moisture corn at 5, 10, or 15%. The diets were fed using the Insentec RIC system for 138 days. …
Alternative Treatment Options For Controlling Anthelmintic-Resistant Haemonchus Contortus Populations In South Dakota Sheep Herds, Adam Sarah
Electronic Theses and Dissertations
Haemonchus contortus is a common economically important gastrointestinal nematode that obliges the survival and productivity of small ruminants, especially sheep and goats. Anthelmintic resistance is a primary challenge in ruminant health management programs in preventing and controlling the H. contortus populations; therefore, there is a great necessity in finding and developing natural plant products for use as alternatives to commercial anthelmintics for controlling H. contortus in pastured sheep and goats. This dissertation has three major aims conducted in three separate studies: the first in vivo one was to evaluate the extended effect of a springtime, combined-treatment with 3 anthelmintics having …
Application Of Analytical Techniques In Food Product Development, Sonali R. Pandey
Application Of Analytical Techniques In Food Product Development, Sonali R. Pandey
Electronic Theses and Dissertations
Products are analyzed in major sectors of food industry to meet regulatory standards, food safety, quality control, and research and development. Analytical and extraction techniques have been applied for simultaneous investigation of multiple product characteristics. Food analysis faces critical challenges due to the complex composition of food, leading to matrix effects that result in loss of accuracy and reliability. The analytical techniques require an efficient sample preparation to avoid or minimize matrix effects. Solid-phase extraction has been widely used to address this issue. In this dissertation, the aim is to apply analytical techniques in food product development. To accomplish this, …
Performance Differences Between Two Groups Of Commercial Pigs Following Experimental Infection With Prrs Virus 1-7-4, Erin Little
Performance Differences Between Two Groups Of Commercial Pigs Following Experimental Infection With Prrs Virus 1-7-4, Erin Little
Electronic Theses and Dissertations
Porcine reproductive and respiratory syndrome virus (PRRSV) is the costliest swine disease in North America. Vaccines and management alone have not been effective in controlling this disease. Genetic selection for resilience may be a complimentary approach for controlling PRRSV. The objective of this study was to estimate performance differences between two groups of pigs from the same commercial line following infection with PRRSV 1-7-4: 1) pigs sired by boars selected based on a standard index (TN-S), which emphasized feed efficiency and carcass quality; and 2) pigs sired by boars selected based on an experimental index (TN-E), which emphasized feed intake, …