Christian communities vary widely in their degrees of acceptability or apprehensiveness toward newly developing technologies, ultimately aiming to help individuals optimally grow in their relationships to God and with others. Technologies viewed as conducive to accomplishing these goals are more likely to be accepted by Christian communities. Technologies viewed as...
The national average life expectancy for houseless individuals in the United States is forty seven years, which is thirty years lower than the overall average. I argue that this disproportionately short life expectancy of the houseless is reflective of significant health inequities in the United States that disproportionately impact the...
This study seeks to examine the participation and representation of stakeholders involved in the Southern Resident Killer Whale Task Force during their first year, culminating in the publishing of their Year One Report and Recommendations for actions with the goal of moving the Southern Resident killer whales toward recovery. This...
Polyfunctional thiols are sulfur containing compounds that are important to the flavor and aroma profile of some foods and beverages. S. Cerevisiae has been shown in wine yeast that it is capable of producing these thiols to create a fruity aroma and flavor profile. IRC7, a gene that codes the...
Local economic development can help lessen the impact of large-scale shocks on small communities as it provides them with resilient systems that do not require as much support from global supply chains. In smaller communities, shared governance, interactive and adaptive planning, and evidence-based policymaking strategies can facilitate resilient systems. The...
In the wake of climate change, the risk of heat related illnesses has continuously increased over the past several decades. While thermal management solutions have continued to improve, there is a need for efficient cooling systems that conform with the human body. This study combines the solutions from fractal-like flow...
This thesis seeks to explain a new method of extracting temporal logic formulas from time series data using machine learning. Two strategies were followed during the development of this research: first, a generative adversarial network was combined with already-existing temporal logic extraction code by Belta. This was achieved by injecting...
Aging and excessive weight appear to be problematic to lateral balance related to falls. Strong frontal plane hip muscle strength is needed to stabilize the hip statically during single leg stance or dynamically during lateral stepping; however, the length of single leg stance time and maximum hip abduction angle during...
Electroencephalogram (EEG) signals have recently gained attention to classify associated hand movement. This is particularly useful for amputees with prostatic hands or people who are unable to move their hands voluntarily. Among the decoding algorithms used to classify hand movements are support vector machines and multilayer perceptron networks. In this...
According to a 2017 Pew Research Study, 44% of adults in America say that they do not feel informed enough about science to understand news and new discoveries discussed on the media (Funk et al. 2019). This is concerning, because adults are not just passive consumers of media; among other...
This project aims to challenge traditional beliefs about the emotional and psychological meanings of colors, which are often limited in the Western world. The psychology of color is heavily present in nearly every aspect of our lives, and this continual reinforcement of each color’s assigned meaning ignores and discourages the...
Climate change is occurring at an increasingly rapid rate, with impacts heightened in the cold regions of the world including the Arctic. Warming effects are widespread, with one impacted process – freeze-thaw cycles – increasing in frequency and potentially triggering additional changes in permafrost soils that have previously acted as...
This project examines the portrayal of the life and times of Kaiserin Elisabeth von Österreich (Empress Elisabeth of Austria) in the popular Austrian musical "Elisabeth das Musical" (Elisabeth the Musical), written by Michael Kunze and Sylvester Levay. "Elisabeth" was first performed in Vienna in 1992 and has since become the...
This study investigates the occurrence of beaver (Castor canadensis) in lentic habitat (lakes and ponds) near Mount St. Helens in Washington, 40 years after the 1980 eruption. At the coarse spatial scale, I surveyed lakes for sign of beaver establishment (lodge or den) across multiple volcanic disturbance zones. At a...
The canine estrous cycle is unique compared to other domestic animal species. During estrus, serum progesterone concentrations ([P4]) rise two days prior to ovulation. In fact, the luteinization of pre-ovulatory follicles resulting in this initial increase in [P4] (1.5-2.5 ng/ml) cannot be temporally dissociated from the onset of the surge...
Sociality relies upon mechanisms that permit group living through a balance of costs and benefits. However, it is not fully known how specific social contexts influence behavioral and physiological outcomes, and more broadly, how responses to social situations contribute to social organization. A recent experiment investigating the relationship between social...
Neurofibromatosis Type 2 (NF2) is a genetic tumor disorder caused by mutations that inactivate the gene coding for the Merlin tumor suppressor. Patients with NF2 develop multiple tumors throughout the nervous system, mainly schwannomas, for which there is no cure or effective treatment. In NF2, redox signaling and oxidative stress...
Expensive pricing for laboratory bioreactors proves to be the main barrier-to-entry for lab-scale academic research. Most laboratory bioreactors are priced at $100K+ and require significant training to use, thereby limiting their accessibility. The IDEAL (Intuitive, Developmental And Research Oriented, Easy To Use, Affordable, And Low Volume) Bioreactor aims to solve...
Being human is often portrayed as desirable in fiction. Many fictional beings, particularly robots and androids, seek out being human as a goal. Although current robotics is not advanced enough for robots and androids to be deemed sentient, the world of fiction is quickly becoming reality. With the integration of...
The ring disclination is a topological defect that may be suitable for light polarization inside of a nematic liquid crystal. Due to its stability and chirality, the ring disclination could also allow for theoretical applications to quantum and classical field theories as a model for fundamental particles. In order to...
Due to the advancement of incredibly low power microcontrollers and small form factor integrated circuits, energy harvesting can be considered as an alternative, low power source for remote ocean sensing and measurements. To demonstrate the effectiveness of harvesting thermoelectric energy contained in the temperature differential between ocean surface water and...
Recently, there has been an expansion of large-scale studies looking at strain variation of Brettanomyces. These studies have found variation between strains in terms of utilization of maltose and production of volatile phenols. While there is research going into this subject, there is a gap in knowledge regarding the differences...
Graphics of hair have been constantly improved since Kajiya’s famous teddy bear in 1989. By combining these concepts and real-world physics laws, I created a realistic representation of hair on a sphere-shaped head. OpenGL also provides a constantly updated display to continuously render the graphic. Using springs, the hair can...
Multi-party computation (MPC) is a field of study focused on devising cryptographic protocols that allow participants to learn the output of some function of their private inputs without trusting a third party to perform the computation. This is usually done at a large scale between data centers, with little emphasis...
This ethnomusicological study has examined the forces that have globalized the Andean instrument of the quena and the genre of Andean music as a whole. This thesis specifically addresses the cultural, and socio-political factors over the last century that has led to the quena being circulated across the globe. Much...
The aerospace industry uses chemical kinetic models when designing propulsion systems to acquire specific details about the rate of chemical reactions, heat release, and combustion stability. These models, however, are too large and stiff to be useful as they can take weeks to run computations on. The pyMARS python package...
The United States depends on the electrical grid infrastructure for nearly every facet of its operation. Understanding how inclement weather affects the reliability of the grid and what the U.S. is doing to ensure its resiliency will be a key step moving forward into the 21st century as global climate...
With robots becoming increasingly commonplace in today’s society, we need to find ways to help robots to become better accepted. One common method used to gain acceptance and build rapport is through the use of humor. Currently, research in robot comedy exists, albeit it is fairly limited. Our goal with...
Accurate estimation of the amount of water used by trees is important for a variety of agricultural applications. There are several current methodologies for measuring sap flow and water use in trees, however the heat ratio method has been identified as the ideal due to its ability to measure low...
The clean cookstove sector has long sought the tools and analysis methods needed to accurately quantify social, environmental, and economic impacts of projects in diverse settings. To respond to this need, Climate Solutions Consulting and Oregon State University have developed a novel integrated suite of sensors to collect fuel usage...
With cannabis use increasing globally, it is important to understand its acute and chronic impacts on human physiology and behavior. It is proposed that cannabis use is linked to impairments in emotion processing, and brain regions that underlie these processes. The purpose of this review paper is to provide the...
This study tested the utility of a variable mixing efficiency formulation proposed by Mashayek, et al. (2017) for use in oceanographic models other than the modern, pre-industrial ocean. This formulation is used to calculate diapycnal (vertical) mixing due to unresolved subgrid-scale processes. Results from Last Glacial Maximum (LGM) simulations for...
The goal of this project is to better characterize particle movement in a multi-channel fluidized bed. Fluidized beds are commonly used for heat transfer with the rapid fluidization and homogeneous heat distribution. By characterizing this particle flow, it would allow for an improved understanding of the heat transfer mechanisms within...
This review investigated the cognitive effects of intergenerational trauma. Through a literature review, 622 articles across two databases were examined using bibliography and literature review software to analyze such effects. Six articles were identified and discussed as well as their implications for future research. The supporting articles demonstrated clear cognitive...
Background: Individuals rapidly infer character traits and behaviors through the process of facial perception. Perceptions of trustworthiness, accurate or not, completed by authorities in the criminal justice system may have implications for individuals suspected of crimes, including harsher or longer sentencing decisions. Objective: The present study concerned how the presence...
Fast, reliable internet access is shown to have numerous economic benefits, including contributing to growth, increasing GDP, decreasing unemployment and depopulation of rural areas, and encouraging competition. However, in the United States, there are large sections of the population that are left severely underserved – mostly rural, low-income, and minority...
Instance segmentation, the classification and localization of objects in an image, is a problem in cellular biophysics due to the physiological relevance of cell morphology. Particularly, cancer cells migrate in tissue space by changing their body shape similarly to how humans extend their limbs to swim through water. Monitoring such...
Domestic cats have been shown to form secure attachment bonds with humans, allowing them to use their owners as a secure base and giving them comfort and confidence when exploring an unfamiliar environment. Many cat owners believe that cohabitation with other cats is beneficial for their pets, and that cohabitant...
When Charles Guiteau killed U.S. President James Garfield, he claimed that God had ordered him to do so. During his trial, Guiteau’s lawyers plead not guilty by reason of insanity, and the question of Guiteau’s innocence or guilt quickly became a question about the very nature of insanity itself. In...
Children’s self-regulation, or the ability for one to regulate their emotions and behaviors, is very important for children to succeed in school, and life in general. This study looks at the relationship between a child’s self-regulation in the fall of their kindergarten year and different aspects of family and the...
As a child of two Khmer Rouge refugees, the Khmer Rouge genocide serves as the prologue of my family’s story. The Khmer Rouge genocide took place in Cambodia in 1975-1979 after a successful coup led by the Communist Party of Kampuchea (CPK) (Dy 2007, 2). In an attempt to create...
During the past two decades, interest has grown in the role and welfare implications of different head and neck positions (HNPs) in equine biomechanics as well as dressage training and competition. To evaluate the influence of HNP on stride length, 17 horses of varying breeds and dressage levels were studied...
This literature review will outline HPV vaccination rates among those ages 13-17, barriers to HPV vaccination and highlight physician recommendation, the strongest predictor of HPV vaccine uptake. It was found that only about 54.2% of adolescents between the ages of 13 and 17 are up to date with HPV vaccination...
Previous research on academic success in biology has focused on the influence of prerequisite knowledge and cognitive ability as measured by course grades or GPA. More recently, the field has considered the influence of non-cognitive factors such as grit, defined as passion and perseverance for long term goals. Both grit...
The ocean provides many ecosystems services and yet humans have viewed the ocean as a black hole for trash since the 1950s. With recycling not getting to the source of the problem, smarter consumer choices are being targeted, specifically choices centered around the use of plastic. Thus efficient, useful communication...
Epidemiological research on HIV/AIDS seeks to determine at-risk populations not reached by current care. In the forty years since the AIDS epidemic began, transgender people were only recently deemed “at-risk” by the CDC and more action was taken to study them. Most current research centers on transgender women, with transgender...
Lanthanide (Ln) based molecular complexes have shown great potential as Lewis acid catalysts for the activation of small molecules. Despite the wealth of structural versatility and high catalytic activity of these complexes, they often lack selectivity and recyclability. This hinders their potential for use in large-scale industrial applications where waste...
The intent of this thesis is to develop three creative non-fiction essays exploring the experience of being an undergraduate woman in a STEM field. The essays will all take on variations in form, humor, and perspectives. The purpose is to explore the position of women in STEM and the different...
This research aims to demonstrate the viability of actively controlled distributed-electric propulsion as a method to postpone flutter in high aspect-ratio elastic wings. A semi-wing on a spring mount with two propellers powered by electric motors, mounted at alternate pitch angles relative to the chord line, was used as the...
Reducing garment waste and finding sustainable alternatives within the apparel industry has gained momentum in recent years as concerns increase towards the polluting nature of the industry. Designing for longevity, by focusing on aspects such as emotional and physical durability have been cited as possible solutions. The purpose of this...
The study of carrier transport in light-emitting diode (LED) has been researched extensively in the past. However, most studies were implementing voltages above the turn-on voltage of the LED. Research on LEDs well below the turn-on voltage threshold is comparatively scarce for good reasons. When the supply voltage is below...
This study examines the relationship between an invasive annual grass, Ventenata dubia, and fire behavior in three non-forested ecotypes within the Ochoco National Forest: stiff sage, low sage, and wet meadows. Fire is an essential ecological function of ecotypes found within the Ochoco landscape. The stiff sage ecotype is a...
Genetic code expansion (GCE) is a technology that allows us to incorporate noncanonical amino acids (ncAAs) site-specifically into recombinant proteins using engineered translational machinery. Typically, an orthogonal aaRS/tRNA pair is engineered by directed evolution to recognize the ncAA and incorporate it at a reassigned codon while not interacting with the...
Heavy metals have historically been popular for use in cosmetics manufacturing due to the colorful pigmentation of heavy metal compounds. In the case of sindoor, a cosmetic used by married Hindu women for religious purposes, mercury sulfide, lead tetroxide, and lead chromate are compounds suspected to still be involved in...
Collaborative governance plays a significant role in forest management on public land in the Pacific Northwest. The method of governance offers the unique ability to engage a diverse range of stakeholders to reach consensus regarding forest management action. Evaluating the dynamics of the collaborative and its members is essential to...
It is well known that in-stream large wood affects river channel shape, sediment deposits, stream flow, and available habitat for aquatic species. However, less is known about how wildlife interact with this large wood. Previous research has shown that small mammals and birds utilize woody debris in river channels for...
The medical system in healthcare facilities is characterized by its hierarchical nature. This hierarchy is demonstrated in the authority assumed by physicians. Professional respect and communication between doctors and the nurses are necessary for overall job satisfaction and the creation of an optimal environment for quality patient care. The significance...
Solar thermal energy can be stored and later converted to electrical energy using a combination of thermochemical energy storage (TCES) and a thermoelectric generator (TEG). This TEG and TCES combination illustrates a potential route for clean electricity storage from renewable energy. TCES allows for thermal energy from the sun to...
Significant challenges remain before lithium-ion batteries can support the decarbonization of the transportation and power sectors required to avert catastrophic climate change. The energy density of these batteries must be increased, while decreasing the price, and maintaining or increasing their lifespan. To improve the practical energy density of existing materials,...
Advancements in neurological data capturing and mapping have provided scientists with exponentially more information, allowing for more detailed analysis of neurological behaviors and their translations to cognitive, emotional, and physical function. Inspired by the diffculty in diagnosing brain damage, this project seeks to leverage statistical modeling with EEG data to...
In this thesis, I aim to bring two ancient spiritual guides into dialogue with each other and with modern psychology: the Bodhisattvacaryāvatāra by Śāntideva of the Mahāyāna Buddhist tradition and The Ladder of Divine Ascent by St. John Climacus of the Christian tradition. I draw from Tibetan Buddhist commentaries on...
With a growing demand for renewable sources of freshwater around the world, stormwater offers a potential solution. However, various pollutants can be present within stormwater, such as antibiotic-resistant bacteria, that present a danger to human health if stormwater is used for agricultural purposes. Biochar has the capability to remove bacteria...
This study sought to understand the unique challenges that housing insecurity programs faced during the COVID-19 pandemic. An anonymous Qualtrics survey, containing closed- and open-ended questions, was sent to housing insecurity programs in Benton County, Oregon. Questions focused on how the COVID-19 pandemic affected services and how programs adjusted to...
The ever-increasing global population presents looming problems for the field of agriculture. Global food demand will, at some point, increase to the point where there is not enough crop-ready land to keep up. This creates an additional incentive, other than economics, for growers to increase their yield-per-acre and make sure...
Black Mirror and The Twilight Zone have each left their mark on popular culture. Charlie Brooker and Rod Serling created television shows with macabre and imaginative concepts and brought them to the small screen. “This is like something straight out of The Twilight Zone!” has become a common phrase since...
Koi herpesvirus (KHV) is a pathogen affecting common carp and ornamental koi with high morbidity and mortality. Currently, no effective treatment or vaccine is available against this virus. Cullin RING ubiquitin ligases (CRLs) are a class of host proteins that facilitate infection of DNA viruses, such as herpesviruses. Inhibitors of...
The nucleocapsid protein (N protein) of the severe acute respiratory syndrome coronavirus 2 is known to play an essential part of the virus’ functions. The N protein can protect and package the large 29,903 nucleotide genomic RNA whilst also interacting with structural membrane protein M and the spike protein S....
The National Ecological Observatory Network (NEON) provides open access data products including sub-daily precipitation amounts and biweekly stable water isotope concentrations at sites across the United States. Stable water isotope (ẟ2H, ẟ18O) concentrations are often used in hydrometeorological studies and models, however the relatively infrequent biweekly sampling intervals of NEON...
Purpose: The transition into college can be a stressful and tense time for students. This study aimed to examine the effect of peer involvement in the creation and maintenance of health-oriented habits. Behaviors such as flossing, eating breakfast, drinking water, and increasing fruit and vegetable intake were all recorded while...
Background: This study investigated the relationship between gestational diabetes mellitus (GDM) and orofacial cleft (OFC). The association between GDM and OFC has been debated, therefore this systematic review focused on presenting a synthesis of the previous studies in this field.
Methods: PubMed was searched using MeSH terms for articles published...
Marine environments provide services for ecosystems and humans, but face many threats, including sea star wasting disease (SSWD) and ocean acidification (OA). Biological research on these threats is abundant, but there has been limited research examining the human dimensions of these threats. This thesis contains two standalone articles that explore...
Nitrate (NO₃-) accumulation in water sources is a serious health and environmental concern. Common methods used to reduce NO₃- accumulation have one or more undesirable traits that limit their efficacy in large-scale decontamination. However, treatment of NO₃- electrochemically is a promising area of study because of the absence of toxic...
Physical activity and social emotional health among children have become increasingly important for children’s overall development. Recess is a time during the school day for students to have access to physical activity opportunities as well as socialize and interact with their peers. A quality recess, that is age and developmentally...
Objective: To perform a systematic review and meta-analysis on the prevalence rate of mental health disorders including anxiety, depression, and insomnia during the COVID-19 pandemic in Eastern Europe in the general population, as well as within select sub-populations (i.e., students, general healthcare workers, and frontline workers).
Data sources: Articles in PubMed,...
Youth in the United States of America are disproportionately affected by the School-to-Prison Pipeline, especially low-income and/or BIPOC youth. This is a result of centuries of historical classism and racism that serve as the foundation of the United States and is directly correlated with mass incarceration and the Prison Industrial...
Reducing the CO2 emitted by the production of cement can greatly reduce the carbon emissions attributable to the built industry. By specifying concrete mixes with lower global warming potentials (GWPs), structural engineers can reduce the carbon emissions of concrete used in the built industry. This thesis uses a cradle-to-gate life...
BoGL is a programming language created for the purpose of computer science education that is specific to the domain of board games. Although there is a language grammar and an existing implementation that is currently used by students, a complete and formal language standard does not yet exist. In the...
The Covid-19 pandemic has affected everyone in the world to some degree through social isolation and a changing of the norms, including the number of deaths. However, no research has been done on how companion dogs in the United States have been affected by these societal changes. Research in Israel,...
While an abundance of research exists that looks at the impact that representatives’ backgrounds have on policy decisions, most of this research is focused on the areas of race and gender. As a result, there is a large gap in the literature that specifically looks at the impact that matters...
The relationship between partisan gerrymandering and voter participation has still not been fully understood. Although it is clear that there are many factors that affect voter participation, the effect of gerrymandering on voter participation still has not been studied. In this study, I will be examining if partisan gerrymandering affects...
Gravitational waves (GWs) are disturbances in spacetime that can be caused by events such as black hole mergers and supernovae, as well as continuous sources such as binary star systems. GWs offer a new avenue of astrophysical research and can reveal information about the early universe. GW detection can be...
Many pollination studies with honey bees have examined the effect of colony density on crop yield and yet overlook the effect of variation in the population size of these colonies. High colony density in northern highbush blueberry has been met with concerns from beekeepers who feel higher densities will intensify...
The intention of this undergraduate research project was to design and build a fully functional high-vacuum chamber testing environment for use in the development of ion propulsion engines. This project was conducted in an effort to aid ongoing projects between the Deep Space Propulsion Group (DSPG) at Oregon State University...
Integrated Distributed Electric Augmented Lift (IDEAL) applies upper surface blowing in a novel way to achieve electric short take-off and landing to meet the growing need for urban air transportation. Additional research on propulsion airframe interaction (PAI) with trailing edge flaps at low Reynolds numbers was necessary to advance the...
In liquid sodium environments like those proposed for next-generation sodium fast reactors (SFRs), the presence of impurities in the sodium, particularly chemical species containing oxygen, can lead to increased corrosion on sodium-wetted components. It is important to monitor oxygen concentration in the sodium melt, but temperatures of 500 ℃ and...
This study aims to explore whether a robotic cookstove feeder can sufficiently reduce variability between tests of a cookstove, produces statistically similar firepower and measured emissions rates, and reduce tester interaction time during standard cookstove testing as compared to a trained human operator. A series of modified ISO/FDIS 19867-1 testing...
Community births are defined as a planned home or birth center birth. Today, the majority of births in the U.S. occur in the hospital, but the U.S. has the highest maternal mortality rates of any developed country. Although community births have comparable outcomes, there is an extreme preference for hospital...
Water is one of the world’s most valued commodities, and antibiotic-resistant bacteria are one of the emerging pollutants of concern. Stormwater runoff picks up pollutants such as bacteria as it runs over impervious surfaces and into waterbodies. This project tested the use of biochar columns as an effective and inexpensive...
Metal-organic frameworks are promising novel materials for gas storage and separations because of their extremely high internal surface area and their modular structures based on metal nodes and organic linker molecules. Due to their modular design, it is possible to finely tune a structure for optimal storage of a specific...
Mental health issues such as depression are increasingly prevalent in college students. However, research on disparities in mental health problems in students of color in college has been limited. In the present study, we used the Healthy Minds Study (HMS) data collected on mental health of college students from 2018-2019...
Oxylipins are a class of bioactive lipid metabolites derived from polyunsaturated fatty acids (PUFAs) via enzymatic and non-enzymatic pathways. In order to elucidate their overall biological effects, the knowledge of the entire oxylipin profile is needed as oxylipins can have similar or opposing effects in regard to inflammatory events. Their...
My thesis is a novel about mental illness. It follows the stories of four different women who all suffer from mental or emotional disorders. My novel explores the dynamics of relationships, trauma, mental illness, and sexuality. I work to create purposeful ambiguity in my novel between reality and the manifestations...
In anatomical education, clinicians, surgeons, and anatomists support the use of human cadavers over digital or artificial alternatives. Cadaver use raises the challenge of preventing tissue dehydration. The OSU cadaver labs attempt to maintain hydration by re-covering the exposed tissues with original skin, layers of plastic wrap, and/or towels and...
This project focuses on implementing a model predictive control (MPC) algorithm as a pathfinding algorithm for navigating tracks with the Oregon State University Global Formula Racing (GFR) team's driverless car. The new algorithm would use an optimization function to calculate the least-cost path for the car to take by assigning...
This study is believed to be the first of its kind to characterize culturable fungal endophytes from the wood of Populus trichocarpa, and to examine the potential of inducible resistance and secondary chemistry as specific host factors that shape fungal endophytic communities in wood. To do so, more than seventy...
It has been demonstrated that dogs form attachment bonds to their owners and that these attachments can be classified and described in ways that are analogous to attachments found between human infants and their mothers. While a secure attachment to a parent has been shown to improve problem-solving abilities in...
In ethnographic research, an anthropologist becomes integrated in the community of their study. Throughout this process, the anthropologist adapts to the cultural practices and the language of this community, becoming intimately connected to them. Ethnography communicates, through the anthropologist’s experience, crucial practices, tensions, and values discovered during research. However, it...
Although computer science (CS) education researchers and practitioners have found ways to improve CS classroom inclusivity, few researchers have considered inclusivity of online CS education. We have begun developing a new approach that we term “embedded inclusive design” to address inclusive CS. The essence of the approach is to integrate...
Cannabis use rates have been escalating in recent years within the United States. The effects of cannabis on motivation and effort-based decision making have been of increased interest. Amotivational syndrome is a term used to refer to a lack of motivation, passive personality, non-productive behavior, and lowered educational attainment due...
Dams, culverts, and water intake structures can impact the movement of aquatic and semi-aquatic species within streams and rivers. Datagaps exist regarding the impact of water intake structures on larval coastal giant salamanders (Dicamptodon tenebrosus) as these obstructions may produce a barrier to up and downstream movement. The Rock Creek...