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Corticosteroid-Laba Inhalers Increase Phonation Threshold Pressure (Ptp) And Flow (Ptf) In Rabbits, Christopher Dromey, Kristine Tanner, Heidi J. Robison, Maya Elena Stevens, Ray M. Merrill, Julie Barkmeier-Kraemer, Ben Christensen Jan 2023

Corticosteroid-Laba Inhalers Increase Phonation Threshold Pressure (Ptp) And Flow (Ptf) In Rabbits, Christopher Dromey, Kristine Tanner, Heidi J. Robison, Maya Elena Stevens, Ray M. Merrill, Julie Barkmeier-Kraemer, Ben Christensen

Faculty Publications

Objectives: This study examined the effects of a combination corticosteroid plus long-acting beta2-adrenergic agonist inhaler (IC) on rabbit phonation. Methods: White New Zealand male rabbits were assigned randomly to experimental and control groups (n = 11 per group). The experimental group received twice-daily doses of Advair HFA™ (fluticasone propionate 45 mcg and salmeterol 21 mcg) via a veterinary facemask with 1-way valve and spacer; the control group received aerosolized saline. After 8 weeks, animals were euthanized, larynges excised, frozen, and subsequently thawed and mounted on a standard bench apparatus. Phonation was elicited during 15 successive trials, and phonation threshold pressure …

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Sociophonetics And Dialectology, Dominic Watt, Margaret E. L. Renwick, Joseph A. Stanley Jan 2023

Sociophonetics And Dialectology, Dominic Watt, Margaret E. L. Renwick, Joseph A. Stanley

Faculty Publications

In this chapter we explore how the investigation of phonetic detail in speech seen through a sociolinguistic lens can inform and enhance our understanding of dialectal variation in languages. We begin by examining how sociophonetics can be considered an offshoot of dialectology, later to mature into a free- standing discipline during the late twentieth century. We next discuss the reconvergence of sociophonetics and dialectology as it became clearer that the two approaches to the study of language variation are, in combination, greater than the sum of their parts, even if their agendas may place different emphases on what should be …

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Front Matter, Vol. 82 No. 4 Dec 2022

Front Matter, Vol. 82 No. 4

Western North American Naturalist

No abstract provided.

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Effects Of Beaver Dams On Stream And Riparian Conditions On Public Lands In The United States’ Inland Northwest, Brett B. Roper Dec 2022

Effects Of Beaver Dams On Stream And Riparian Conditions On Public Lands In The United States’ Inland Northwest, Brett B. Roper

Western North American Naturalist

A before-after control-impact (BACI) design was used to simultaneously evaluate how stream habitat, macroinvertebrate communities, stream temperatures, and riparian conditions responded to beavers building dams within a stream reach. Summarized conditions describing beaver-dammed and undammed stream reaches suggested that 13 of the 18 evaluated metrics differed. After accounting for beavers’ selection of lower-gradient stream reaches with less forested cover, the number of stream and riparian metrics that differed significantly dropped to 5. Beaver dams increased pool area and depth, despite failing to increase the frequency of wood >10 cm in diameter. This suggests that beavers build dams utilizing pieces of …

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Front Matter, Vol. 14 Dec 2022

Front Matter, Vol. 14

Monographs of the Western North American Naturalist

No abstract provided.

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End Matter, Vol. 14 Dec 2022

End Matter, Vol. 14

Monographs of the Western North American Naturalist

No abstract provided.

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A Review Of Arctomecon Californica (Papaveraceae) With A Focus On The Species’ Potential For Propagation And Reintroduction And Conservation Needs, Alexander Stosich, Lesley A. Defalco, Sara J. Scoles-Sciulla Dec 2022

A Review Of Arctomecon Californica (Papaveraceae) With A Focus On The Species’ Potential For Propagation And Reintroduction And Conservation Needs, Alexander Stosich, Lesley A. Defalco, Sara J. Scoles-Sciulla

Monographs of the Western North American Naturalist

Las Vegas bearpoppy (Arctomecon californica) occurrences have fluctuated during the past several decades, in part due to interannual variability in rainfall that influences recruitment and mortality events; yet, development in the Las Vegas Valley continues to threaten habitat supporting this species. Arctomecon californica was petitioned for listing under the Endangered Species Act in 2019 and is currently under review to determine whether listing is warranted (USFWS 2020). This review updates species information for A. californica and includes recent insights into the species’ seed ecology, habitat requirements and suitability models, propagation and reintroduction, and pollinator biology. We include information …

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Factors Related To The Distribution And Abundance Of Westslope Cutthroat Trout In Central Idaho, Kevin A. Meyer, Curtis J. Roth, Brock A. Lipple, Paul K. Link Dec 2022

Factors Related To The Distribution And Abundance Of Westslope Cutthroat Trout In Central Idaho, Kevin A. Meyer, Curtis J. Roth, Brock A. Lipple, Paul K. Link

Western North American Naturalist

Native resident salmonids throughout North America have experienced population declines, and understanding factors that influence their contemporary distribution and abundance may help conserve and manage such species. We examined the influence of several environmental factors on the current distribution and abundance of westslope cutthroat trout Oncorhynchus clarkii lewisi in central Idaho, based on snorkel survey data collected from 2010 to 2019. In total, 2758 snorkel surveys were conducted at 1000 sites; cutthroat trout were present during 1277 of the surveys, and their occupancy rate was higher if brook trout Salvelinus fontinalis were absent (0.48) than if brook trout were present …

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Physical Habitat Complexity Partially Offsets The Negative Effect Of Brook Trout On Yellowstone Cutthroat Trout In The Peripheral Goose Creek Subbasin, Daniel C. Dauwalter, Michael A. Baker, Sarah M. Baker, Richard Lee, John D. Walrath Dec 2022

Physical Habitat Complexity Partially Offsets The Negative Effect Of Brook Trout On Yellowstone Cutthroat Trout In The Peripheral Goose Creek Subbasin, Daniel C. Dauwalter, Michael A. Baker, Sarah M. Baker, Richard Lee, John D. Walrath

Western North American Naturalist

Nonnative Brook Trout Salvelinus fontinalis often reduce the long-term persistence of native Cutthroat Trout Oncorhynchus clarkii populations in the western United States. However, there are some instances where the 2 species have co-occurred for decades, and healthy and diverse stream habitat conditions have been suggested to facilitate sympatry. Our goal was to evaluate how habitat diversity may interplay in the negative interactions between Brook Trout and Yellowstone Cutthroat Trout O. c. bouvieri in the Goose Creek subbasin in the western United States. We determined that neither species was abundant when they occurred in sympatry. Yellowstone Cutthroat Trout were present at …

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Injuries And Abnormalities Of The Southwestern Pond Turtle (Actinemys Pallida) In The Mojave River Of California, Kristy L. Cummings, Jeffrey E. Lovich, Shellie R. Puffer, Sarah Greely, Christopher D. Otahal, James Gannon Dec 2022

Injuries And Abnormalities Of The Southwestern Pond Turtle (Actinemys Pallida) In The Mojave River Of California, Kristy L. Cummings, Jeffrey E. Lovich, Shellie R. Puffer, Sarah Greely, Christopher D. Otahal, James Gannon

Western North American Naturalist

The southwestern pond turtle (Actinemys pallida) is a semiaquatic turtle that occasionally spends time on land to bask, oviposit, make intermittent overland movements, and overwinter in terrestrial locations. Use of both aquatic and terrestrial environments exposes semiaquatic turtles to increased risk of injury or mortality from floods, predation attempts, and other environmental hazards (e.g., human activities such as vehicle strikes, etc.). We collected injury and morphological abnormality data from adult turtles at 3 study sites along the length of the Mojave River in San Bernardino County, California: 1 site on the upper half of the Mojave River (hereafter …

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End Matter, Vol. 82 No. 4 Dec 2022

End Matter, Vol. 82 No. 4

Western North American Naturalist

No abstract provided.

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Main And Interactive Effects Of Mental Health, Parent Ethnic Socialization, Discrimination On Bipoc Teens' Ethnic Identity, Emily Takamasa, Ashley M. Fraser, Adam Rogers Dec 2022

Main And Interactive Effects Of Mental Health, Parent Ethnic Socialization, Discrimination On Bipoc Teens' Ethnic Identity, Emily Takamasa, Ashley M. Fraser, Adam Rogers

Undergraduate Honors Theses

Research would suggest that BIPOC (Black, Indigenous, People of Color) adolescents have the best developmental outcomes when strong, positive ethnic identity is acknowledged and embraced. This study investigated whether discrimination, internalizing symptomology, parent socialization, and/or interactions of these variables influenced adolescent ethnic identity, specifically in exploration, resolution, and affirmation to illuminate nuanced ways BIPOC youth can achieve positive ethnic identity. Recruited from third-party research panels, surveyed participants were adolescents (Mage = 15.28; 51.6% male) of diverse racial/ethnic groups and socioeconomic backgrounds from all regions of the U.S. Overall, the results showed that there were four significant main effects on ethnic …

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Surface Modification Of 3d Printed Microfluidic Devices For Controlled Wetting In Two-Phase Flow, Chandler A. Warr, Nicole G. Crawford, Gregory P. Nordin, William G. Pitt Dec 2022

Surface Modification Of 3d Printed Microfluidic Devices For Controlled Wetting In Two-Phase Flow, Chandler A. Warr, Nicole G. Crawford, Gregory P. Nordin, William G. Pitt

Faculty Publications

Microfluidic devices (MFDs) printed in 3-D geometry using digital light projection to polymerize monomers often have surfaces that are not as hydrophobic as MFDs made from polydimethylsiloxane. Droplet microfluidics in these types of devices are subject to droplet adhesion and aqueous spreading on less hydrophobic MFD surfaces. We have developed a post-processing technique using hydrophobic monomers that renders the surfaces of these devices much more hydrophobic. The technique is fast and easy, and involves flowing monomer without initiator into the channels and then exposing the entire device to UV light that generates radicals from the initiator molecules remaining in the …

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Going Cold Turkey? Changes To Faunal Subsistence In The Northern San Juan Region From Basketmaker Ii Through Pueblo Iii, Tenaya Gatrell-Bedard Dec 2022

Going Cold Turkey? Changes To Faunal Subsistence In The Northern San Juan Region From Basketmaker Ii Through Pueblo Iii, Tenaya Gatrell-Bedard

Theses and Dissertations

Previous research in the Northern San Juan Region of the American Southwest has revealed a pattern of change in subsistence patterns from the Basketmaker II through Pueblo III periods. Jonathan C. Driver describes the pattern as: cottontail in Basketmaker III (500 to 750 CE) and Pueblo I (750 to 900 CE), deer in Pueblo II (900 to 1150 CE), and turkey in Pueblo III (1150 to 1350 CE). The transition from deer to turkey as the main subsistence has been recorded at several sites throughout the Northern San Juan Region and is thought to be caused by the overhunting of …

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The Influence Of Predation Environment On The Sensory Ecology Of Brachyrhaphis Rhabdophora, Alexandra Grace Duffy Dec 2022

The Influence Of Predation Environment On The Sensory Ecology Of Brachyrhaphis Rhabdophora, Alexandra Grace Duffy

Theses and Dissertations

Across the animal kingdom, predation is a ubiquitous and omnipresent selective agent for a variety of traits. I aimed to address gaps in our knowledge pertaining to how predation shapes animal behavior. Many species of fish naturally occur in drainages that differ in the density of predators and exhibit obvious population divergence, making them ideal study organisms to investigate predator-driven behavioral evolution. In Chapter 1, I conducted a systematic review of the literature. The purpose of this review was to determine if predation acted as a stronger or weaker selective agent on particular behavioral traits (e.g., foraging, mating, antipredator etc.) …

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Variation In The M-Opioid Receptor (Oprm1) And Offspring Sex Are Associated With Maternal Behavior In Rhesus Macaques (Macaca Mulatta), Zachary Baron Dec 2022

Variation In The M-Opioid Receptor (Oprm1) And Offspring Sex Are Associated With Maternal Behavior In Rhesus Macaques (Macaca Mulatta), Zachary Baron

Theses and Dissertations

A m-opioid receptor (OPRM1) single-nucleotide-polymorphism, found in both humans and rhesus macaques mediates the mother-infant attachment bond. Because mothers treat their sons and daughters differently, it is somewhat surprising that the role of infant sex has not been assessed in the context of a maternal-OPRM1-genotype-by-infant-sex interaction. The present study investigates the effect of maternal-OPRM1-genotype and infant sex on mother-infant behaviors. Over the first six months of offspring life, mother-infant behavioral data assessing attachment quality was collected twice weekly from a large number of rhesus monkey mother-infant pairs (N=161 dyads; n=64 female infants, n=97 male infants). Mothers were genotyped for OPRM1 …

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Quantifying Volatile Fatty Acid Concentrations During The Pretreatment And Anaerobic Digestion Process, Sascha Boutelle Dec 2022

Quantifying Volatile Fatty Acid Concentrations During The Pretreatment And Anaerobic Digestion Process, Sascha Boutelle

Theses and Dissertations

Producing renewable energy from biomass or from the wastewater treatment process has gained momentum in the past 20 years. Anaerobic digestion has historically been used as one step in the waste treatment process, to both reduce the mass of waste that needs to be disposed of and to generate biogas. This process is typically only able to reduce 30-40% of the waste mass because of the recalcitrant nature of the waste streams being treated. Anaerobic pretreatment with the thermophilic bacteria Caldicellulosiruptor bescii (C. bescii) has been proven to increase the percentage of mass digested and consequently increase methane production to …

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Understanding The Ahupua'a: Using Remote Sensing To Measure Upland Erosion And Evaluate Coral Reef Structure, Logan Kalaiwaipono Ellis Dec 2022

Understanding The Ahupua'a: Using Remote Sensing To Measure Upland Erosion And Evaluate Coral Reef Structure, Logan Kalaiwaipono Ellis

Theses and Dissertations

Under ever intensifying pressures from land use, climate change, and erosion, tropical islands are among the most vulnerable systems in the world. Terrestrial systems are weakened by intensifying land use patterns, the weakening of which is highlighted when high intensity rainfall events erode sediment and leads to sediment deposition on the marine system. The deposition of sediment on the marine system is a major stressor that can lead to weakened coral reefs and a decrease in marine resources commonly gathered for food. These interactions have led to the emergence of biocultural resource management strategies, one of which is the ahupua'a …

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Of Bugs And Wildfires: Tracing The Impacts Of Changing Wildfire Regimes On Aquatic Bacteria And Macroinvertebrates Using Edna, Isabella M. Errigo Dec 2022

Of Bugs And Wildfires: Tracing The Impacts Of Changing Wildfire Regimes On Aquatic Bacteria And Macroinvertebrates Using Edna, Isabella M. Errigo

Theses and Dissertations

Human disruption of climate, habitat, and ignition has altered the behavior of wildland fire at local to continental scales. In many regions, novel fire regimes are emerging that threaten to exceed the capacity for local management to protect human wellbeing and ecosystem function. Simultaneous changes in climate, species composition, and fire management have resulted in extreme fire behavior in many regions. For the Western United States, the emerging novel fire regime consists of more frequent, severe, and intense wildfires, with annual area burned by wildfire having doubled and high-severity wildfire area having increased 8-fold since the 1980s. The impacts of …

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Effect Of Climate History On The Genetic Structure Of An Antarctic Soil Nematode, Abigail C. Jackson Dec 2022

Effect Of Climate History On The Genetic Structure Of An Antarctic Soil Nematode, Abigail C. Jackson

Theses and Dissertations

Historical climate disturbances such as glacial cycling and fluctuating stream, lake, and sea levels strongly influence the distribution and evolutionary trajectories of Antarctic terrestrial species. Antarctic invertebrates, with limited long-range mobility, including the ubiquitous sentinel nematode species Scottnema lindsayae, are especially sensitive to climate disturbances. We tested hypotheses associated with the historical geographic and population genetic structure of this species as it occurs across the McMurdo Dry Valleys (MDVs) of Antarctica. In order to reconstruct the influence of climate disturbance and ecological conditions on this species, partial mitochondrial COI gene sequences were sequenced and analyzed from individual S. lindsayae collected …

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Assessing The Knowledge, Attitudes, And Practices Of Elementary Teacher Educators On The Inclusion Of Computational Thinking Through Coding, Megan Christine Swanson Dec 2022

Assessing The Knowledge, Attitudes, And Practices Of Elementary Teacher Educators On The Inclusion Of Computational Thinking Through Coding, Megan Christine Swanson

Theses and Dissertations

This study sought to understand the knowledge, attitudes, and practices of teacher educators regarding Computational Thinking (CT) and coding. All elementary teacher educators in the state of Utah were sent a survey and asked to participate in a follow up interview. Twentynine faculty replied. Five of the 29 survey respondents were interviewed. Teacher educators shared their definitions of CT and coding, which primarily dealt with problem solving and computer programming, respectively. Overall attitudes were positive about incorporating CT and coding, but many participants questioned how it would fit into the already overwhelming nature of the elementary education major. However, those …

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Potential Local Extirpation Of An Imperiled Freshwater Mussel Population From Wildfire Runoff, Andrew J. Lawrence, Cindy Matuch, Jacquelyn J. Hancock, Andrew L. Rypel, Laura A. Eliassen Dec 2022

Potential Local Extirpation Of An Imperiled Freshwater Mussel Population From Wildfire Runoff, Andrew J. Lawrence, Cindy Matuch, Jacquelyn J. Hancock, Andrew L. Rypel, Laura A. Eliassen

Western North American Naturalist

Effects of wildfire and subsequent hydric erosion on freshwater communities are of increasing interest. While freshwater biodiversity is in a global state of decline, examples of climate-driven wildfire impacts to freshwater mussel populations are especially limited. We discovered a population of native floater mussels (Anodonta californiensis/nuttalliana), documented fish species, and recorded data on river substrate characteristics before and after an influx of wildfire runoff in Monterey County, California, USA. Pre-wildfire runoff surveys documented robust and naturally reproducing populations of mussels and 3 species of native fishes (Monterey sucker, Catostomus occidentalis mnioltiltus; Monterey roach, Lavinia symmetricus subditus; …

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Computational Studies Of Dinuclear Catalytic Reaction Mechanisms, James Curtis Coombs Iii Dec 2022

Computational Studies Of Dinuclear Catalytic Reaction Mechanisms, James Curtis Coombs Iii

Theses and Dissertations

Heterodinuclear and homodinuclear metal complexes with a direct metal-metal interaction offer the potential for unique catalysis due to cooperativity effects that impact reaction mechanisms, reactivity, and selectivity. Quantum-chemical density functional theory (DFT) calculations can directly examine the origin of dinuclear reactivity and selectivity effects. Chapter 1 provides a short overview of heterodinuclear and homodinuclear catalysts that have been experimentally and computationally examined. Chapter 2 reports our study using DFT methods to understand the mechanism and reactivity of a heterodinuclear Co-Zr catalyst with phosphinoamide ligands that catalyzes a Kumada coupling between alkyl halides and alkyl Grignards. Chapter 3 reports DFT calculations …

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The Effect Of Gut Microbiota On Overwintering Success In Mule Deer, Emma Wilcox Dec 2022

The Effect Of Gut Microbiota On Overwintering Success In Mule Deer, Emma Wilcox

Theses and Dissertations

Mule deer are an important rangeland grazer, large prey species, and game animal for the state of Utah, so herd size is monitored and managed actively. A significant cause of population decline is poor overwintering survival, including from the lack of available forage during winter months. Mule deer energy storage is correlated with greater overwintering success, so physical estimates of energy storage including body condition score (BCS), rump fat (RF), and loin thickness (LT), can be used to track and predict a herd's health. Current methods of collecting deer information are costly, time consuming, and cause physical stress to deer, …

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The Cholera-Fiend: Cheap Fiction, Medical Professionals, And Entertainment, Sariah Fales Harrington Dec 2022

The Cholera-Fiend: Cheap Fiction, Medical Professionals, And Entertainment, Sariah Fales Harrington

Theses and Dissertations

First published in 1849, Charles Averill’s The Cholera-Fiend follows three villains as they attempt to artificially propagate cholera for their own villainous purposes in New York City. Gumbo, a Black servant to one of the villains, is meant to be the humorous relief in the text, but Gumbo experiences a calculated dehumanization from human to disabled, which causes him to be more at-risk for a health crisis—such as a tapeworm or cholera—than his white counterparts. Through analyzing the genre of cheap fiction, the views of medical professionals towards Black bodies, and other ways Black bodies were used as entertainment, I …

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Biofilm Characterization And The Potential Role Of Edna In Horizontal Gene Transfer In Hospital And Meat Isolates Of Staphylococcus Aureus And Their Biofilms, Ashley Lynne Ball Dec 2022

Biofilm Characterization And The Potential Role Of Edna In Horizontal Gene Transfer In Hospital And Meat Isolates Of Staphylococcus Aureus And Their Biofilms, Ashley Lynne Ball

Theses and Dissertations

Staphylococcus aureus is a pathogen responsible for a wide variety of life-threatening diseases such as bacteremia, endocarditis, and pneumoniae. S. aureus has been a major concern in recent years due to the rampant spread of antibiotic resistance. The ability of S. aureus to form biofilms aids in the spread of antibiotic resistance as biofilms are a known hotspot for horizontal gene transfer. Biofilms also protect cells from host immune responses and antibiotics, making these infections very difficult to treat. The matrix of S. aureus biofilms can be made of polysaccharides, protein, and DNA. In these studies, we sought to elucidate …

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The Role Of Chitinase A In Mastitis-Associated Escherichia Coli Pathogenesis, Weston D. Hutchison Dec 2022

The Role Of Chitinase A In Mastitis-Associated Escherichia Coli Pathogenesis, Weston D. Hutchison

Theses and Dissertations

Bovine mastitis is a common disease among dairy cattle characterized by the inflammation of the udders and loss of milk production. Mastitis-associated Escherichia coli (MAEC) are frequent causes of the disease, but the features that distinguish them from other E. coli strains remain enigmatic. MAEC infections can range from sub-clinical to severe, acute cases that can be fatal. Historically, the severity of mastitis has been attributed to host factors but more recently, a few bacterial genes have been shown to contribute to virulence in mastitis infections. In a large-scale genomic analysis of >100 MAEC isolates the gene for Chitinase A …

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Developing A Quantitative Understanding Of U-Substitution In First-Semester Calculus, Leilani Camille Heaton Fonbuena Dec 2022

Developing A Quantitative Understanding Of U-Substitution In First-Semester Calculus, Leilani Camille Heaton Fonbuena

Theses and Dissertations

In much of calculus teaching there is an overemphasis on procedures and manipulation of symbols and insufficient emphasis on conceptual understanding of calculus topics. As such students to struggle to understand and use calculus ideas in applied settings. Research shows that learning calculus topics from a quantitative reasoning-perspective results in more powerful and flexible conceptions of calculus topics like integration. However, topics beyond introducing integrals and the Fundamental Theorem of Calculus, like u-substitution, have yet to be explored from a quantity-based perspective. In this study, I conducted a set of two clinical interviews where we discussed quantitative meanings of integrals, …

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"This Whole Journey Was Sacred": Latter-Day Saint Parents' Process In Coming To Accept A Transgender Child, Julia Campbell Bernards Dec 2022

"This Whole Journey Was Sacred": Latter-Day Saint Parents' Process In Coming To Accept A Transgender Child, Julia Campbell Bernards

Theses and Dissertations

This grounded theory methodology (GTM) study examines the process of members of the Church of Jesus Christ of Latter-day Saints in coming to accept a transgender or gender diverse (TGD) child. Data comes from interviews with 38 Latter-day Saint parents of TGD children and 130 Facebook posts from the same population. Data was analyzed using GTM in coding and theory construction. A model of Latter-day Saint parents' process in accepting a TGD child and the factors that impact that process is presented. The results indicate that coming to accept a TGD child tends to engage Latter-day Saint parents cognitively, emotionally, …

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Parental Warmth And Disciplinary Strategies In Two-Parent-Adoptive And Biological Families, Jordan Coburn Dec 2022

Parental Warmth And Disciplinary Strategies In Two-Parent-Adoptive And Biological Families, Jordan Coburn

Theses and Dissertations

Adopted children enter families with parents who on average are older, have higher income, and have more education than other family structures. Because adopted children are moving into families with more resources, research suggests that they would do just as well as, and perhaps even better than, children in biological two-parent households. However, this is not always the case. Understanding how different variables could offset any negative results of adoption is a puzzle that researchers are continually exploring. Previous research has investigated differences in investments from adoptive and biological parents through multiple theoretical lenses. I seek to add to current …

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