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2019

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Aug2019, Robert Kelly Aug 2019

Aug2019, Robert Kelly

Robert Kelly Manuscripts

No abstract provided.

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Understanding The Effect Of Font Type On Reading Comprehension/Memory Under Time-Constraints, Elizabeth Dressler Aug 2019

Understanding The Effect Of Font Type On Reading Comprehension/Memory Under Time-Constraints, Elizabeth Dressler

Theses/Capstones/Creative Projects

This research study investigated the effects that font type and amount of time had on the reading comprehension. It was predicted that students restricted with time and given difficult-to-read font (Haettenschweiler) would perform more poorly because more cognitive resources are being utilized to decode the typography compared to an easy-to-read font (Times New Roman). Consequently, there would be fewer cognitive resources available to comprehend and remember the material. Previous research has consistently shown that subjects perform better from reading or memorizing words in difficult-to-read font. However, almost all previous research has consisted of short passages, thereby limiting ecological validity. Results …

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Temperature Influence On Insecticide Resistance In Aedes Aegypti And Aedes Albopictus Mosquitoes From South Texas, Wendy Soledad Salinas Aug 2019

Temperature Influence On Insecticide Resistance In Aedes Aegypti And Aedes Albopictus Mosquitoes From South Texas, Wendy Soledad Salinas

Theses and Dissertations

Aedes aegypti and Aedes albopictus are vectors for several emerging arboviruses including Zika, chikungunya and dengue. Both mosquitoes are found along the Rio Grande River in South Texas, along the border between Mexico and the United States of America. These mosquito species typically reside near human settlements. A preventative measure public health official use to help halt the spread of diseases is by controlling vector population with the use of insecticides, but as temperature vary, and with the constant exposure to commonly used insecticides, mosquitoes from South Texas may be developing a resistance to the insecticides. Resistance to insecticides may …

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Development And Analysis Of 3d-Printed Synthetic Vocal Fold Models, Ryan Gregory Romero Aug 2019

Development And Analysis Of 3d-Printed Synthetic Vocal Fold Models, Ryan Gregory Romero

Theses and Dissertations

Vocal fold models are valuable for studying voice production. They provide an alternative method of studying the mechanics of the voice that does not require in vivo experimentation or the use of excised human or animal tissue. In this thesis, a new method of creating vocal fold models through additive manufacturing is described. The purpose of this research was to reduce model fabrication time, to decrease the number of model failures during manufacturing, and to lay the foundation for creating models with more lifelike geometric and material properties. This research was conducted in four stages. First, a suitable silicone additive …

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General Catalog 2019-2020, Utah State University Aug 2019

General Catalog 2019-2020, Utah State University

University Catalogs

This catalog contains information on the Academic Departments and Programs as well as Course Descriptions for the above school year at Utah State University. To avoid large file downloads, the Academic Departments and Programs information is located in this file. The Course Description information is located in the secondary file.

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Drought Management Notes, Edward Barrow Rayburn Aug 2019

Drought Management Notes, Edward Barrow Rayburn

Faculty & Staff Scholarship

WVU-Extension fact sheet

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The Role Of Secretory Phospholipase A2 Group Iia In Obesity And Metabolism, Michael S. Kuefner Aug 2019

The Role Of Secretory Phospholipase A2 Group Iia In Obesity And Metabolism, Michael S. Kuefner

Theses and Dissertations (ETD)

Secretory phospholipase A2 group IIA (PLA2G2A) is a member of a family of secretory phospholipases previously implicated in inflammation, atherogenesis, and antibacterial actions. These enzymes hydrolyze glycerophospholipids at the sn-2 position releasing lysophospholipids and fatty acids. Though studies have shown PLA2G2A is pro-inflammatory and promotes atherosclerosis, no research has analyzed the role of this enzyme in obesity and metabolism. Studies in the past 5-10 years utilizing various knock- out or over-expression mouse models have analyzed the role of different secretory phospholipase A2s (sPLA2) in metabolic diseases. From these studies, it is known that at least seven of the 11 sPLA2 …

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Investigation Of Riluzole’S Synaptic Protection Mechanism Through Hsf1-Bdnf Axis, Yi Zhang Aug 2019

Investigation Of Riluzole’S Synaptic Protection Mechanism Through Hsf1-Bdnf Axis, Yi Zhang

Theses and Dissertations (ETD)

The FDA-approved amyotrophic lateral sclerosis (ALS) drug Riluzole has great potential in treating Alzheimer’s disease (AD) based on promising animal data as well as its known action on modulating synaptic transmission. However, its detailed mechanism of action is not fully understood. Here, we proposed work aiming to address this aspect via focus- ing on the Heat Shock Factor 1 (HSF1)-dependent mechanisms. We found that Riluzole could increase HSF1 and BDNF (Brain-Derived Neurotrophic Factor) expression both at transcriptional and translational levels. CA1 (Cornu Ammonia, the first region in the hip- pocampal circuit), is its main target. We also demonstrated a protective …

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Fear Learning And The Olfactory Bulb: Neural Correlates Of Behavioral Fear Generalization, Jordan Marie Ross Aug 2019

Fear Learning And The Olfactory Bulb: Neural Correlates Of Behavioral Fear Generalization, Jordan Marie Ross

Theses and Dissertations (ETD)

The exploration of how learning alters neural coding to guide behaviors remains fundamental to neuroscience. At the most basic level, the ability for organisms to flexibly adapt to changing environments and situations is paramount to biological success and often manifests in behavioral responses controlled by neural activity. For example, organisms must modify their behavior to defensive responses in the face of biological threat. Neural circuitry is involved in coordinating an initial defensive behavioral response but must undergo reorganization in order to reliably employ defensive responses in subsequent encounters based on a cue that signals imminent danger. One such form of …

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"I Like . . . Red Bone:" Colorism, Rappers, And Black College Sorority Women At A Predominantly White Institution, Whitney Frierson Aug 2019

"I Like . . . Red Bone:" Colorism, Rappers, And Black College Sorority Women At A Predominantly White Institution, Whitney Frierson

Graduate Theses and Dissertations

In this thesis, I examine black college sorority women’s views about skin tone bias in hip-hop culture. I conduct interviews with 12 black undergraduate women in Black Greek Letter Sororities at a predominantly white institution. Prior research finds that rap music sends skin color messages to adolescent women through lyrical content and music videos. I build on this work by exploring how the experiences of being in college shape black college sorority women’s views on skin tone bias and hip-hop. I find that time in college has been an important life stage in which black sorority women gained an increased …

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The Thermal And Physical Properties Of Beef From Three Usda-Quality Grades Cooked To Multiple Degrees Of Doneness, Jessica Mcclellan Hadfield Aug 2019

The Thermal And Physical Properties Of Beef From Three Usda-Quality Grades Cooked To Multiple Degrees Of Doneness, Jessica Mcclellan Hadfield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objective of this study was to determine the influence of quality grade (QG) and degree-of-doneness (DOD) on thermophysical properties of beef strip steaks. The “Prime” eating experience must be marketed to compete with cheaper protein sources, and so palatability is a major concern with beef products. Thermal and physical properties help shed light on the impacts various components have on beef palatability, mainly tenderness and juiciness. Warner-Bratzler shear force (WBSF) and the textural property of springiness are both influenced by a combination of QG and DOD. This is also true for viscoelasticity and the degradation of myosin and sarcoplasmic …

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Ensuring A Holistic And Quality Education For Every Child: A Phenomenological Inquiry Of Principals’ Transformational Leadership, Elijah Granger Aug 2019

Ensuring A Holistic And Quality Education For Every Child: A Phenomenological Inquiry Of Principals’ Transformational Leadership, Elijah Granger

Electronic Theses and Dissertations

Researchers have not fully examined how school leaders impact the teaching and learning environment when working toward generating students’ academic success. Balyer (2012) called for more work on understanding the transformational leadership behaviors that create conditions conducive to generating student achievement within educational accountability. Therefore, the purpose of this phenomenological inquiry is to explore the lived experiences of principals and their perceptions concerning the state accountability system and how it may impact their transformational efforts in ensuring a holistic and quality education for every child. The phenomenological inquiry will yield the opportunity to compare administrators’ in-depth perceptions of the accountability …

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Visual Opsin Diversity In Anurans, Leah Perez Aug 2019

Visual Opsin Diversity In Anurans, Leah Perez

Electronic Theses and Dissertations

Among major vertebrate groups, anurans are understudied with regards to their visual systems and how they function. This study sampled North American anurans representing diverse evolutionary and life histories and which likely possess visual systems adapted to meet different ecological needs. Using standard molecular techniques, sequences were obtained for four opsins—the protein component of visual pigments—expressed in anuran retinas. Amino acid sequences of the genes RH1, LWS, SWS1, and SWS2 were compared across taxa to identify variable sites, as such variation can shift the spectral sensitivity of visual pigments and thus alter dim-light and color vision. Some of the amino …

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Environmental Regulation Of Cyanobacteria Aerosols From Low Productivity Lakes, Katharine Lorena Langley Aug 2019

Environmental Regulation Of Cyanobacteria Aerosols From Low Productivity Lakes, Katharine Lorena Langley

Master's Theses and Capstones

Cyanobacteria produce a range of toxins harmful to both humans and wildlife. Microcystins (MCs) are common and potent cyanotoxins that inhibit protein phosphatases in the liver. Chronic exposures can result in tumor promotion and cancer. Toxicity primarily follows ingestion of MCs, however inhalation may be an important secondary and compounding route of exposure to cyanotoxins. The LD50 of intratracheally applied MC-LR is 50x lower than the oral LD50. While MCs are well documented in water, little is known about cyanobacteria and cyanotoxins in aerosols and the factors that regulate the movement of cells and toxins into the air. To begin …

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Effects Of Alternative Carbohydrate Sources And Soybean-Derived Isoflavones On The Microbiome And Immune System Of Nursery Piglets And Intestinal Porcine Epithelial Cell Line J-2, Sydney Kinstler Aug 2019

Effects Of Alternative Carbohydrate Sources And Soybean-Derived Isoflavones On The Microbiome And Immune System Of Nursery Piglets And Intestinal Porcine Epithelial Cell Line J-2, Sydney Kinstler

Department of Animal Science: Dissertations, Theses, and Student Research

Four experiments were conducted to characterize the microbiome of the piglet and observe effects of diet on growth performance and immunity. In Exp. 1, 96 nursery piglets were fed varying carbohydrate sources and in Exp. 2, 64 piglets were fed a soy protein concentrate or soybean meal as-is or supplemented with an isoflavone concentrate. Body and feeder weights were measured for growth performance estimation. Luminal contents and scrapings were isolated for microbial composition analysis. Fecal and blood samples were extracted in Exp. 2 for microbiome and immunity analysis. Diets did not affect growth performance (P > 0.10); however, Exp. 1 …

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Evaluation Of Alpha Amylase Containing Corn On Beef Cattle Performance And Digestibility And Double-Cropped Annual Forages Following Corn Harvest, Mckenna Brinton Aug 2019

Evaluation Of Alpha Amylase Containing Corn On Beef Cattle Performance And Digestibility And Double-Cropped Annual Forages Following Corn Harvest, Mckenna Brinton

Department of Animal Science: Dissertations, Theses, and Student Research

One digestion and three feedlot trials evaluated the effect of a new corn hybrid containing an α-amylase enzyme trait, Syngenta Enogen Feed Corn (SYT-EFC) on site and extent of digestion, ruminal fermentation parameters, and feedlot performance. Experiments utilized corn containing the enzymatic gene (SYT-EFC) compared to commercially available corn (CON), processed as corn silage (CS) kernel processed or not (KP), dry-rolled corn (DRC), high-moisture corn (HMC), or a blend of DRC and HMC. Growing calves fed high inclusions of CS, displayed increased G:F when CS was KP, resulting in a 6.5% improvement in G:F. Hybrid and kernel processing did not …

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Use Of The Spiritual Development Framework In Conducting Spirituality And Health Research With Adolescents, Dora L. Clayton-Jones, Kristin Haglund, Jame Schaefer, Harold C. Koenig, Safiya George Dalmida Aug 2019

Use Of The Spiritual Development Framework In Conducting Spirituality And Health Research With Adolescents, Dora L. Clayton-Jones, Kristin Haglund, Jame Schaefer, Harold C. Koenig, Safiya George Dalmida

College of Nursing Faculty Research and Publications

Spirituality is considered a universal phenomenon, but research addressing the spiritual needs of adolescents in the context of health and illness is limited. The aim of this article is to provide a description of how the spiritual development framework (SDF) was used in conducting research with adolescents. An exemplar of a qualitative descriptive study is provided to demonstrate applicability of the SDF. The SDF was used as a guiding theoretical framework in conducting research with adolescents living with sickle cell disease. The SDF is culturally applicable and methodologically appropriate. Additional research applying the SDF is warranted.

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Differential Placing Of Flexion Creases Contributes To Sex Differences In The Second-To-Fourth Digit Ratio (2d:4d), Sanjay Kumar, Martin Voracek, Maharaj Singh Aug 2019

Differential Placing Of Flexion Creases Contributes To Sex Differences In The Second-To-Fourth Digit Ratio (2d:4d), Sanjay Kumar, Martin Voracek, Maharaj Singh

College of Nursing Faculty Research and Publications

The present research examined whether differential placing of the basal flexion creases contributes to the occurrence of sex differences in digit ratio (2D:4D) derived from palmar digit lengths. The ratio of palmar-to-dorsal digit length, a measure of the placing of the basal flexion crease in the finger, was derived for the digits 2 and 4 of the right hand in two independent samples (Study I: N = 100; Study II: N = 200), in accordance with discovery-replication sample approach. The results show that men have lower palmar-to-dorsal digit ratios than women, and this effect is significantly stronger for digit 2 …

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Quality Of Wheat Grains (Triticum Aestivum) Generationally Exposed To Cerium Oxide Nanoparticles (Nceo2), Oluwasegun Michael Abolade Aug 2019

Quality Of Wheat Grains (Triticum Aestivum) Generationally Exposed To Cerium Oxide Nanoparticles (Nceo2), Oluwasegun Michael Abolade

Graduate Theses/Dissertations

The impacts of generational exposure to engineered nanomaterial on grain quality are poorly documented. This study was performed on wheat grains harvested from plants grown in soil amended with cerium oxide nanoparticles (nCeO2) at the 2nd and 3rd generations. Third generation experiment was performed at low and high nitrogen (N) soil levels. The goal was to investigate changes in grain fatty acid and elemental contents due to parental exposure (C1 vs T1 in 2nd generation, C1C2 vs T1T2 in 3rd generation) or current generation …

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Sequence Analysis Of The Ren1 Genomic Region From The Grapevine ‘Kishmish Vatkana’, Dani Joseph Aug 2019

Sequence Analysis Of The Ren1 Genomic Region From The Grapevine ‘Kishmish Vatkana’, Dani Joseph

Graduate Theses/Dissertations

The REN1 region of the grapevine ‘Kishmish Vatkana’ was mapped as the locus that confers resistance to the economically important disease, grape powdery mildew. The purpose of this work was to extend the nucleotide sequence information of this region. By sequencing a heretofore unknown bacterial artificial chromosome clone, the sequence information of this region was extended by 46,890 nucleotides. Sequencing was performed using the third-generation sequencing method, named Oxford Nanopore Technology (ONT). In order to improve the accuracy of the sequence data, a modified ONT library preparation method was developed. ONT sequencing of a library prepared with the modified protocol …

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The Effect Of Metal Composition And Particle Size On Nanostructure-Toxicity In Plants, Natalie Lynn Smith Aug 2019

The Effect Of Metal Composition And Particle Size On Nanostructure-Toxicity In Plants, Natalie Lynn Smith

Graduate Theses/Dissertations

Silver nanoparticles (AgNPs) have consistently been shown to have a detrimental effect on bacteria, fungi, and plants. The interaction of AgNPs with plants has received considerable scientific attention, because it is potentially through plants that these structures can enter the food chain and bioaccumulate in humans and animals. To determine the effects of AgNPs on plants, Arabidopsis thaliana seedlings were chronically exposed to sublethal levels of AgNPs using a standardized method. To gain insight on mechanism of phytotoxicity, the seedlings were exposed to low concentrations of Ag+ (in the form of silver nitrate), AgNPs, or gold nanoparticles (AuNPs). To …

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So . . . We're Going For A Walk: A Placed-Based Outdoor Art Experiential Learning Experience, Priscilla Anne Stewart Aug 2019

So . . . We're Going For A Walk: A Placed-Based Outdoor Art Experiential Learning Experience, Priscilla Anne Stewart

Theses and Dissertations

Schools in the United States often emphasize making children competitive in a global economy while neglecting the importance of developing citizens who are ecologically responsible. Problems of climate change, loss of biodiversity, mass extinctions and degradation of the natural environment, are often ignored. Some researchers have suggested that children lack unstructured play time in nature, have an increased amount of screen time, lack mindfulness, and are insulated from the natural world. Many children rarely have significant experience with nature's wildness. It is common for people to experience a sense of placelessness in the hyper-mobility of present times where "globalizing" agendas …

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Leaf Fiber Strength And Fruit Nutrient Content Of Yucca Species Native To The Navajo Nation, Anna Therese Bartlett Aug 2019

Leaf Fiber Strength And Fruit Nutrient Content Of Yucca Species Native To The Navajo Nation, Anna Therese Bartlett

Theses and Dissertations

The strength of leaf fibers and the nutritional value of the edible fruit of several yucca species native to the U.S. southwest were studied to aid in the determination of species best suited for commercial cultivation by the Navajo Nation. The leaves were softened in an autoclave to facilitate the removal of the leaf matrix, conditioned in environmentally controlled chambers, and the fibers were broken using a texture analyzer. The fibers were frozen and cross sectioned and photographed to determine cross sectional area. Official methods were used to determine the nutritional content of the fruit. The mean tensile strength of …

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Toward New Ecologies Of Cyberphysical Representational Forms, Scales, And Modalities, Alexandre Gomes De Siqueira Aug 2019

Toward New Ecologies Of Cyberphysical Representational Forms, Scales, And Modalities, Alexandre Gomes De Siqueira

All Dissertations

Research on tangible user interfaces commonly focuses on tangible interfaces acting alone or in comparison with screen-based multi-touch or graphical interfaces. In contrast, hybrid approaches can be seen as the norm for established "mainstream" interaction paradigms. This dissertation describes interfaces that support complementary information mediations, representational forms, and scales toward an ecology of systems embodying hybrid interaction modalities. I investigate systems combining tangible and multi-touch, as well as systems combining tangible and virtual reality interaction. For each of them, I describe work focusing on design and fabrication aspects, as well as work focusing on reproducibility, engagement, legibility, and perception aspects.

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Pairing Passive Sampling With Epigenetic Biomarkers Of Exposure To Monitor Potential Toxic Impact Of Environmental Complex Mixtures, David C. Wyker Aug 2019

Pairing Passive Sampling With Epigenetic Biomarkers Of Exposure To Monitor Potential Toxic Impact Of Environmental Complex Mixtures, David C. Wyker

All Dissertations

The goal of this study was to develop a means of assessing and monitoring the potential impacts of complex mixtures in surface waters by utilizing environmentally representative mixtures collected using passive sampling devices and whole organism bioassays, which equally represent the complex biological systems they are acting on. Chemical monitoring across three watersheds and comprising seven sampling locations was conducted across Georgia and South Carolina using passive sampling devices (PSDs). Earlier research conducted in the lab showed differing, and significant responses from fish sampled at many of these sites using the ethoxyresorufin-O-deethylase (EROD) and glutathione S-transferase (GST) bioassays. The polar …

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Experience Qualities Re-Examined: Improving The Measurement Of Experiential Conditions In Outdoor Recreation, Jessica Pearl Fefer Aug 2019

Experience Qualities Re-Examined: Improving The Measurement Of Experiential Conditions In Outdoor Recreation, Jessica Pearl Fefer

All Dissertations

Visitor use management (VUM) is the proactive and adaptive process for managing characteristics of visitor use and the natural and managerial setting using a variety of strategies and tools to achieve and maintain desired resource conditions and visitor experiences (IVUMC, 2018). For nearly 40 years, the application and operationalization of visitor use management has relied on a normative approach, which assumes that visitors to parks and recreation areas have shared attitudes and preferences about resource and social conditions. Visitor use management frameworks and the normative approach rely on defining management objectives, identifying indicators and thresholds for the visitor experience, monitoring …

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Joint Management Of Biofuel Production And Food Production To Optimize Energy Return To Land Use In Thailand: A Regional Mathematical Programming Approach, Watcharapol Pumkaew Aug 2019

Joint Management Of Biofuel Production And Food Production To Optimize Energy Return To Land Use In Thailand: A Regional Mathematical Programming Approach, Watcharapol Pumkaew

All Dissertations

This study approached the conflict between energy and food needs by balancing the allocation of land area devoted to food and feed with land area to grow biofuel feedstocks. The selected optimization model was a tool that included a regional approach to determine the optimum potential land area of Thailand to use in biofuel production without affecting the supply of food and feed. The selected crops were sugarcane, cassava, and palm oil with consideration of four geographic regions of Thailand, which were the Northern, Northeastern, Central and Southern regions. The optimum cropland area and crop types in each region were …

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Evaluation Of The Potential For Ecological Treatment Technologies To Remediate Species Of Phytophthora From Irrigation Runoff, Natasha Lynn Bell Aug 2019

Evaluation Of The Potential For Ecological Treatment Technologies To Remediate Species Of Phytophthora From Irrigation Runoff, Natasha Lynn Bell

All Dissertations

Increased incidences and severity of drought have reduced reliable access to freshwater sources for irrigation purposes by nursery and greenhouse plant producers. Many plant producers are now considering onsite remediation and reuse of water captured from irrigation runoff. However, potential contamination of recycled water with plant pathogens, primarily species of Phytophthora, is the primary concern preventing many growers from reusing their water. Species of Phytophthora are capable of infecting thousands of host plants and cause some of the most economically important diseases of nursery and greenhouse crops worldwide. Phytophthora spp. produce motile, swimming zoospores that often serve as propagules …

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Constraints And Context: Testing The Effects Of Anthropogenic Noise And Social Factors On Avian Signaling Behavior, Erin E. Grabarczyk Aug 2019

Constraints And Context: Testing The Effects Of Anthropogenic Noise And Social Factors On Avian Signaling Behavior, Erin E. Grabarczyk

Dissertations

Rapid human-generated environmental change has irrevocably altered the natural world. Understanding how animal populations respond and persist within these modified landscapes is critical for mitigating associated negative environmental impacts. For organisms that rely on vocal communication, anthropogenic noise masks signals, reducing the area over which vocalizations can be heard. For birds, noise overlaps with songs males use to defend breeding areas and attract mates, both critical aspects of reproduction. In response to noise, males adjust their song structure, but whether they actually benefit from song changes is unknown. Moreover, it remains unclear whether noise disrupts communication by affecting interactions with …

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Aerobic Photolysis Mecbl: Structure And Electronic Properties Of Cbl-O-O-Ch3 Intermediate., Aida Bazarganpour Aug 2019

Aerobic Photolysis Mecbl: Structure And Electronic Properties Of Cbl-O-O-Ch3 Intermediate., Aida Bazarganpour

Electronic Theses and Dissertations

The photolysis of methylcobalamin (coenzyme B12) results in homolytic cleavage of the Co-C bond, forming cob(II)alamin and the Co(II)/CH3 radical pair (RP) which further react with O2 to form the intermediate (R-O-O-Cbl) that involves in the aerobic photolysis. It has been suggested that the key intermediate (R-O-O-Cbl) involves in aerobic photolysis is the insertion of O2 between the Co-C bond. Clearly, the exposure of light is needed to induce the activation Co-C bond for generating the Co(II)/CH3 radical pair (RP). The intermediate (R-O-O-Cbl) undergoes further decomposition to aldehyde as the final product of aerobic …

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