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Articles 1 - 30 of 115
Full-Text Articles in Physical Sciences and Mathematics
Dataset For The Incorporation Of Climate Change Into A Multiple Stressor Risk Assessment For The Chinook Salmon (Oncorhynchus Tshawytscha) Population In The Yakima River, Washington Usa, Wayne Landis, Chelsea J. Mitchell, John D. Hader, Rory Nathan, Emma E. Sharpe
Dataset For The Incorporation Of Climate Change Into A Multiple Stressor Risk Assessment For The Chinook Salmon (Oncorhynchus Tshawytscha) Population In The Yakima River, Washington Usa, Wayne Landis, Chelsea J. Mitchell, John D. Hader, Rory Nathan, Emma E. Sharpe
Environmental Sciences Faculty and Staff Publications
Data files available below
This data set is in support of Landis et al (in press 2024). A key question in understanding the implications of climate change is how to integrate ecological risk assessments that focus on contaminants with the environmental alterations from climate projections. This article summarizes the results of integrating selected direct and indirect effects of climate change into an existing Bayesian network previously used for ecological risk assessment. The existing Bayesian network Relative Risk Model (BN-RRM) integrated the effects of organophosphate pesticides concentrations, water temperature, and dissolved oxygen levels on the Chinook salmon population in the Yakima …
Using Trace Element Concentrations In Volcanic Ash To Elucidate Magma Sources To Koma Kulshan’S (Mount Baker) Most Recent Explosive Eruption – The 6.7 Ka Ba (Black Ash) Tephra, Stone Machel
Geology Graduate and Undergraduate Student Scholarship
Koma Kulshan (Mount Baker) is an active stratovolcano in the northern Washington Cascades. Kulshan’s most recent magmatic eruption at 6.7 ka was explosive, producing the ~0.2 km3 BA tephra (black ash) from the edifice (Scott et al. 2019). Comprehensive geochemical data for the BA tephra were previously limited to major elements from one whole rock lapillus (silicic andesite) and several in situ glass analyses (dacite), despite being Kulshan’s most voluminous Holocene tephra. Here, I present the first extensive major and trace element study of the pyroxene- and plagioclase-bearing BA tephra glass to determine magma source and eruption processes. My …
By The Campfire: How Representation In Video Games Can Be Improved, Hunter Smith
By The Campfire: How Representation In Video Games Can Be Improved, Hunter Smith
WWU Honors College Senior Projects
By the Campfire is a video game designed with accurate and thorough representation in mind from the start of development. Its purpose is to showcase the ways in which the player character in a video game can accurately represent anyone who plays it, and that the non-player characters in a video game can be generated in a way that diverse groups can be represented without harmfully misrepresenting them. This project includes a document that explains the process by which this game was created and why certain choices were made when implementing the games systems. The document details a survey that …
An Analysis Of Clinopyroxene Reaction Rims As Assimilation Chronometers At Cinder Cone Volcano, Lassen National Volcanic Park, California, Annabelle Carozza
An Analysis Of Clinopyroxene Reaction Rims As Assimilation Chronometers At Cinder Cone Volcano, Lassen National Volcanic Park, California, Annabelle Carozza
WWU Honors College Senior Projects
Cinder Cone is a monogenetic cinder cone volcano located in Lassen National Volcanic Park, California. It erupted in 1666 CE and had three eruptive phases, each producing tephra and lava flows that ranged in style from Hawaiian (low explosivity) to Strombolian (moderate to high explosivity). This eruptive style variability at Cinder Cone was not caused by viscosity or volatile differences, and ascent rate has been proposed as a causal factor in the observed explosivity difference between phases. Ubiquitous quartz crystals are entrained within tephra and lava and were likely sourced from the assimilation of a granitic basement rock underlying the …
Time As A Line: Helping Children Make Abstract Ideas Concrete, Rachel Mae Stenner
Time As A Line: Helping Children Make Abstract Ideas Concrete, Rachel Mae Stenner
WWU Honors College Senior Projects
This is a math education project that included research, a lesson plan, and actual in the classroom work with students. Under the advisement of Dr. Rebecca Borowski, I looked into how time, an abstract idea, is taught to young children who are just starting to learn what measurement is, and examined how teachers can better teach time as a more concrete topic. This focused on the idea of turning the abstract time concepts that are thrown at children into the more abstract ideas of both circular and then linear number lines, using physical materials to help guide the process.
Shared Roots: A Geochemical Investigation Of Basaltic Andesites To Understand Magmatic Cogenesis At The Middle Sister And South Sister Volcanoes, Central Oregon, Sean Francis Halstead
Shared Roots: A Geochemical Investigation Of Basaltic Andesites To Understand Magmatic Cogenesis At The Middle Sister And South Sister Volcanoes, Central Oregon, Sean Francis Halstead
WWU Honors College Senior Projects
The Middle Sister and South Sister volcanoes, near Bend, Oregon, are overlapping, active Cascade Arc stratovolcanoes which share a complex, contemporaneous eruptive history. This history is characterized by an extreme compositional diversity of lavas erupted in alternating phases of high activity from one neighboring volcano to the other, with both vents producing material ranging from basaltic andesite to rhyolite. This system is understood to be predominantly fed by basaltic andesites fractionated from partial mantle melts within the lower crust, but magma compositions are additionally impacted by mixing, assimilation, and crustal contamination while in transit to the surface. Thus, the subterranean …
Blood Coagulation Factor Ix: Purification, Activation, Crystallization, Juliet Mcgill
Blood Coagulation Factor Ix: Purification, Activation, Crystallization, Juliet Mcgill
WWU Honors College Senior Projects
This paper presents readers with an optimized procedure for the purification, activation, and crystallization of selected blood coagulation Factor IX double mutant (FIX_2). Through the completion of this work, we aim to enhance future biochemical and structural studies by providing an easier means for the FIX_2 production, in order to increase understanding of the protein’s function within the blood coagulation cascade. The initiation of the blood coagulation cascade is brought on by activation of inactive Factor VIII (FVIII) protein though contact with tissue factor, the FVIII protein then binds to an activated platelet surface where it must wait for its …
Studying The South Lake Whatcom Fire, Lillian Buck
Studying The South Lake Whatcom Fire, Lillian Buck
WWU Honors College Senior Projects
This study investigates the ecological consequences of the South Lake Whatcom Fire, which occurred in August 2023, focusing on soil health and water quality. Lake Whatcom, historically shaped by indigenous settlements and 19th-century logging and mining activities, is a critical water source for Bellingham residents. The fire, sparked by lightning, was managed with hand-dug lines, and contained by September 2023. Soil analysis revealed a significant reduction in the organic matter/duff layer depth in burned areas compared to unburned sections, highlighting potential challenges for soil recovery and ecosystem health. Erosion concerns were raised, emphasizing the need for post-fire management strategies. This …
Using Two Coeval Andesites From Middle Sister And South Sister, Oregon, As Clues To Understanding Connectivity Between Adjacent, Coincident Stratovolcanoes, James Peale
Geology Graduate and Undergraduate Student Scholarship
The Three Sisters Volcanic Complex in central Oregon is a cluster of three primary stratovolcanoes and a mafic periphery which lies at the intersection of the Cascade volcanic arc and the Basin and Range extensional province. This project focuses on the two youngest stratovolcanoes, Middle Sister and South Sister. Middle Sister experienced a period of frequent eruptive activity from approximately 27 ka to 14 ka, during which it erupted dacites, andesites, and basaltic andesites. South Sister experienced an intense period of eruptive activity from approximately 36 ka to 22 ka, during which it erupted a diverse suite of magmas ranging …
Understanding Potential Reservoir Interconnectivity Between Two Contemporaneous Volcanoes During The Onset Of Cone-Building Activity, Middle Sister And South Sister, Central Oregon, Emma Calvert
Geology Graduate and Undergraduate Student Scholarship
Klah Klanee (Three Points) is located in the central Cascades near Bend, Oregon. The Three Sisters Volcanic Complex (TSVC) lies at a tectonically complex intersection of the Cascade Subduction Zone, the Basin and Range Province, and the High Lava Plains. The TSVC is a compositionally diverse volcanic field consisting of four stratovolcanoes and numerous periphery cones and vents. Middle Sister and South Sister are the youngest of the stratovolcanoes and they share a largely contemporaneous and semi-alternating episodic eruptive history. These parallel histories could indicate a complex, interconnected magmatic root system within the crust below the TSVC and the surrounding …
Supporting Data For Impact Of The Macrophyte Nymphaea Odorata (Lily Pads) On Dissolved Organic Matter (Dom) In A Lake, Kyle Juetten, Warren J. De Bruyn, Zachary Landram, Aaron Harrison, Angela Strecker, Catherine D. Clark
Supporting Data For Impact Of The Macrophyte Nymphaea Odorata (Lily Pads) On Dissolved Organic Matter (Dom) In A Lake, Kyle Juetten, Warren J. De Bruyn, Zachary Landram, Aaron Harrison, Angela Strecker, Catherine D. Clark
Chemistry Faculty and Staff Publications
(Files are available for download below.)
This is supporting data for a publication on the role of lily pads in contributing to the dissolved organic matter pool in Lake Louise, a small lake in the Pacific Northwest region of the USA. Specifically, this data includes the absorbance and fluorescence spectra of the Lake Louise water samples (taken weekly over the course of 2018). These files include large spreadsheets with raw and corrected absorbance and fluorescence intensity data as a function of wavelength, as well as the raw and corrected absorbance and fluorescence 3D excitation-emission matrix spectra (EEMs). These files are …
Interactive Learning With Plankton: Constructing Kiosks For The Sea Discovery Center, Sierra Schuster
Interactive Learning With Plankton: Constructing Kiosks For The Sea Discovery Center, Sierra Schuster
WWU Honors College Senior Projects
This project involved creating two interactive kiosks for the SEA Discovery Center to better engage visitors on their plankton exhibits. HTML, CSS, and ReactJS were used to construct web apps that could be launched in Chromium’s Kiosk Mode upon system boot time so that the application would automatically run, preventing visitors to the Center from gaining access to the computer beyond the main program. They are hosted externally on Western Washington University’s Cyber Range and are run on the kiosk machine by Raspberry Pi 4s that access it via a URL. The informational kiosk was designed to give visitors an …
Strengthening Collaboration Between Washington State And British Columbia, Ginny Broadhurst, Laurie D. Trautman
Strengthening Collaboration Between Washington State And British Columbia, Ginny Broadhurst, Laurie D. Trautman
Border Policy Research Institute Publications
There are a variety of benefits that arise from collaboration across the Canada-US border. In some sectors, the value of collaboration is measurable. For example, travel or trade volumes can be equated with specific economic benefits. This is the case with tourism and supply chain networks. There are traceable benefits associated with cross-border business integration and the development of a shared ‘innovation ecosystem’. However, how does one measure the value of having good relations with neighbors? Or the benefits that result from developing more resilient environmental and economic conditions that are created by joint responses to shared natural disasters? The …
Double Trouble: Applying Deep Learning To Ebs Systems, Noah Reneau, Hidemi Mitani Shen, Nicholas Chandler, Ian Pourlotfali
Double Trouble: Applying Deep Learning To Ebs Systems, Noah Reneau, Hidemi Mitani Shen, Nicholas Chandler, Ian Pourlotfali
WWU Honors College Senior Projects
Eclipsing binaries (EB) are fundamental stellar laboratories that can be detected via long-term photometric monitoring. Analyzing the orbital motion of these EBs offers a unique ability to directly measure the parameters of both stars in the system, including masses, radii, and effective temperatures, without relying on theoretical models. Nonetheless, this process is non-trivial, and arriving to a correct solution for a given system can often take significant time. In the ongoing work, we are developing deep learning models capable of providing fast and accurate predictions of these fundamental parameters in these EBs, which will enable the characterization of an increasingly …
Animal-Sediment Relationships Reexamined, A Meta-Analysis, Christine Franzen
Animal-Sediment Relationships Reexamined, A Meta-Analysis, Christine Franzen
WWU Honors College Senior Projects
The patterns associated with the influence of grain size on the spatial variation of the deposit and suspension-feeding groups have been studied since the late 1950s. The foundational paper for the theory, Sanders (1958), proposed that a higher proportion of clay and silt-sized grains in the sediments correlates with a higher proportion of deposit feeders compared to suspension feeders. This theory has become widely accepted and taught in textbooks despite subsequent papers indicating differing observations. Through a meta-analysis, this study examines whether the observation from Sanders (1958) was indicative of a general rule or an anomaly. Additionally, this study aims …
Lagrangian Mechanics And The Motion Of A T-Handle, Eric Maurer
Lagrangian Mechanics And The Motion Of A T-Handle, Eric Maurer
WWU Honors College Senior Projects
This paper begins by deriving the equations of motion for the Lagrangian formulation of mechanics. Lagrangian mechanics describes the same thing as the traditional Newtonian mechanics (which is what is taught in most undergrad physics classes), but rather than model the system through forces, it models the system through energy. Energy is conserved in a system, which allows the Lagrangian formulation to model certain types of systems in a more efficient way than the Newtonian formulation.
Next, the paper explores rigid body motion, specifically looking at the motion of the angular momentum. The goal of this part is to explain …
How Much Noise Is Too Much For Southern Resident Killer Whales In The Salish Sea? The Case For A Carrying Capacity Study., Rob Williams, Cindy R. Elliser, Ginny Broadhurst
How Much Noise Is Too Much For Southern Resident Killer Whales In The Salish Sea? The Case For A Carrying Capacity Study., Rob Williams, Cindy R. Elliser, Ginny Broadhurst
Institute Publications
Background and rationale for the need of a carrying capacity study that will provide the necessary data to understand what amount of vessel noise is acceptable, while at the same time allowing marine life to maintain healthy populations.
Investigations On The Active Catalyst In Pd Catalyzed Organic Reactions, Riley Mcgraw
Investigations On The Active Catalyst In Pd Catalyzed Organic Reactions, Riley Mcgraw
WWU Honors College Senior Projects
Cross coupling and C-H functionalization reactions are valuable tools in the synthesis of pharmaceuticals, natural products, fine chemicals, and electronics. Molecular precatalysts are frequently used in both reactions but because the reactions use conditions like those employed in intentional preparation of nanoparticles, the presence of nanoparticles is highly likely for both systems. In the case of the cross-coupling reaction, nanoparticles have been shown to have catalytic relevance, but C-H functionalization reactions are widely thought to occur by means of a homogenous catalyst. To better understand the state of the active catalyst, a method of homogeneity analysis by centrifuge is proposed. …
Using Mineral Magnetism To Characterize Compositions Of Fe-Ti Oxide Phases Of The Sulphur Creek Lava Flow (Kulshan), Elika Zilis
Using Mineral Magnetism To Characterize Compositions Of Fe-Ti Oxide Phases Of The Sulphur Creek Lava Flow (Kulshan), Elika Zilis
WWU Honors College Senior Projects
The aim of this study is to examine variations in the composition of Fe-Ti oxide minerals in the Sulphur Creek lava flow (SE margin of Kulshan), using magnetic techniques and electron microscopy. Geochemical and petrological data from these rocks dated ~9.8 ka may be a product of two distinct magma pulses (Garvey, 2002) with two distinct compositions: andesitic basalt and basalt. The composition of cubic oxides (magnetite and ulvöspinel) is influenced by the geochemistry of the crystallizing magma and can be used to provide information about the chemical evolution of these magmas, but also to help frame future paleomagnetic studies …
Evaluating Domain Specific Llm Performance Within Economics Using The Novel Econqa Dataset, Tate Van Patten
Evaluating Domain Specific Llm Performance Within Economics Using The Novel Econqa Dataset, Tate Van Patten
WWU Honors College Senior Projects
This paper describes a novel dataset, EconQA, constructed to assess the performance of large language models within multiple choice economics questions. I present results from 10 experiments, varying prompts and model choices. Results challenge previous findings that prompt choice makes a large impact on quality of response. Using the GPT 3.5 Turbo model, observed performance levels ranged from 70-77% for all prompt choices, with the no prompt baseline scoring 73%. When prompted to use Chain-of-Thought reasoning with examples, performance was highest at 76%. Contrary to previous research, performance on mathematical questions when prompted with Chain-of-Thought was high. This paper closes …
Synthesis And Characterization Of Hydroxy-Functionalized Copper Indium Disulfide Quantum Dots, Julia Schexnayder
Synthesis And Characterization Of Hydroxy-Functionalized Copper Indium Disulfide Quantum Dots, Julia Schexnayder
WWU Honors College Senior Projects
Quantum dots offer tunable electronic and optical properties due to the quantum confinement effect, making them desirable for various applications. However, their native hydrophobic form requires surface chemistry modification for certain applications. This research explores the method of ligand exchange using 11-mercapto-1-undecanol for improving the stability of copper indium disulfide (CIS) quantum dot (QD) nanoparticles in polar environments. The effects of this ligand exchange on QD chemical composition, optical properties, hydroxy-reactivity, and hydrodynamic radius are characterized. Analysis of characterization results indicates successful surface modification through hydroxyfunctionalization, as confirmed by 1H-NMR and IR spectroscopy. The desired optical properties of the QDs …
Databases And Deliberation, Britany Orozco, Quentin Jensen
Databases And Deliberation, Britany Orozco, Quentin Jensen
WWU Honors College Senior Projects
This paper describes the process taken to build a digital form-collection system in a business context. By starting with the motivation for the project, we can gather the requirements necessary to complete before we can consider the project complete. From there, we start discussing the client-server-database architecture principles that must be reviewed before we can design our database. Database design fundamentals are reviewed, such as what a schema or entity relationship diagram is, and those fundamentals are used to design the database. Next, we show how a development environment is chosen. With the environment set up, we then discuss how …
The Role Of Volatile Enrichment In The Radiogenic Heating And Thermal Evolution Of Rocky Exoplanets, Ula Jones, Asmaa Boujibar
The Role Of Volatile Enrichment In The Radiogenic Heating And Thermal Evolution Of Rocky Exoplanets, Ula Jones, Asmaa Boujibar
WWU Honors College Senior Projects
Internal heating in terrestrial planets is a fundamental physical process controlling the internal structure of a planet, mantle convection, volcanic activity, and the generation of magnetic fields. Internal heating results from various processes including radioactive decay and accretional energy, as well as additional irradiation and tidal heating in planets with short orbital periods. The largest long-term heat source for terrestrial planets is radioactive heating, especially from the decay of uranium (U), thorium (Th), and potassium (K) isotopes. K is a moderately volatile element, while U and Th are refractory elements; during planetary accretion volatiles are depleted relative to refractory elements, …
From Filth It Rises Presentation, Griffin Hartz
From Filth It Rises Presentation, Griffin Hartz
WWU Honors College Senior Projects
This project contains the design, development, and partial implementation of a survival horror game made in Unity engine. The highlight of the game's design is the machine learning agents used to create the game's enemy AI, developed with Unity's MLagents system. In the game, the player controls a construction worker who traveled into a sewer to pursue a missing coworker. They eventually find their way into a crumbling undercity where their coworker was trapped, and soon become hunted by the mutant monster that killed their coworker. Their goal is to escape the ruins without being preyed upon by the mutant …
Solving The Genius Square: Using Math And Computers To Analyze A Polyomino Tiling Game, Noah Jensen
Solving The Genius Square: Using Math And Computers To Analyze A Polyomino Tiling Game, Noah Jensen
WWU Honors College Senior Projects
This paper investigates if the claim of the game Genius Square is true, that all 62,208 boards that its dice can roll are solvable. The gameboard is a 6 by 6 grid and the objective of the game is to tile a board that has 7 blockers, quasi-randomly placed by the dice, with 9 polyominoes consisting of 1, 2, 3, and 4 squares. In order to implement a model of linear systems created by John Burkardt and M.R. Garvie, code was developed using Python and Matlab. With this code, it was shown that all 62,208 boards are solvable. The number …
A Change-Point Analysis Of Air Pollution Levels In Silao, Mexico And Fresno, California, Rachael Goodwin
A Change-Point Analysis Of Air Pollution Levels In Silao, Mexico And Fresno, California, Rachael Goodwin
WWU Honors College Senior Projects
We analyzed PM10 levels in the city of Silao, Mexico, as well as PM2.5 and PM10 levels in Fresno, California to determine if there was a shift in air pollution levels in either location. A change point based analysis was used to determine if there was a shift in air pollution levels. In the city of Silao, there was a significant increase in PM10 levels, but there was no significant change in Fresno for either pollutant.
Lake Whatcom Monitoring Project 2021/2022 Report, Angela Strecker, Michael Hilles, Joan Pickens, Kathryn Queen, Emily Flarry, Robert Mitchell, Robin A. Matthews, Geoffrey B. Matthews
Lake Whatcom Monitoring Project 2021/2022 Report, Angela Strecker, Michael Hilles, Joan Pickens, Kathryn Queen, Emily Flarry, Robert Mitchell, Robin A. Matthews, Geoffrey B. Matthews
Lake Whatcom Annual Reports
This report describes the results from the 2021/2022 Lake Whatcom monitoring program conducted by the Institute for Watershed Studies at Western Washington University (www.wwu.edu/iws).
The major objectives in 2021/2022 were to continue long-term baseline water quality monitoring in Lake Whatcom and its major tributaries; collect storm runoff water quality data from representative streams in the watershed; and continue collection of hydrologic data from Austin and Smith Creeks.
Freshwater Algae In Northwest Washington, Volume Iii. Desmids, Part A, Robin A. Matthews
Freshwater Algae In Northwest Washington, Volume Iii. Desmids, Part A, Robin A. Matthews
A Collection of Open Access Books and Monographs
No abstract provided.
Hood Canal Salmon Enhancement Sustainable Farm Education Intern, Sean Anderson
Hood Canal Salmon Enhancement Sustainable Farm Education Intern, Sean Anderson
College of the Environment Internship Reports
Hood Canal Salmon Enhancement Group (HCSEG) is a nonprofit organization that seeks to ensure the healthy recovery of salmon in the Hood Canal watershed, and through restoration, education, and research they aim to achieve this goal. Based at the Salmon Center in Belfair, I interned on the farm there aptly named Farm at Water’s Edge. They’re a certified organic farm meaning they don’t use any herbicides, pesticides, or chemical fertilizer where runoff can be avoided to not affect the salmon, it’s a fantastic demonstration of sustainable farming practices.
Nw Straits Foundation Rain Garden Intern, Margeaux Bailey
Nw Straits Foundation Rain Garden Intern, Margeaux Bailey
College of the Environment Internship Reports
The goal of the project was to not only create a green space within the bus loop where children are dropped off and picked up but to build a storm water filtration system to improve storm water quality before it enters streams and it’s final destination, the Salish Sea.This rain garden also provides continuous learning opportunities for the students at Mt. Erie Elementary School to gain knowledge about stormwater management practices and the opportunity to be environmental stewards. The Mt. Erie rain garden contains a variety of 130 plants including native species and benefits the Salish Sea through filtering up …