May 3, 2024 | Digital Showcase | Humboldt Library
All Presenters & Abstracts
Invasive Plant Species
Presentation Year: 2018
My service learning project involves the removal of invasive plant species in Humboldt County. A large portion of this project will be the removal of invasive plants within the Native Plant Garden at Patrick's Point State Park. Along with other enhancements of the Native Plant Garden, such as, the implementation of interpretive signs and the chipping of pathways for easier accessibility. This project will also encompass the removal of invasive plants in other areas along Trinidad State Beach.
Investigating the Heterogeneous Catalysis of Volatile Organic Compounds by Environmental Metal Oxides
Presentation Year: 2018
Environmental metal oxides have multiple chemical interactions with natural and anthropogenic organics in the atmosphere. Volatile organic compounds (VOC) and pollutants such as; pesticides, fertilizers, and nitrates are introduced to the atmosphere through similar means as well as incomplete combustion from vehicles and industrial processes. Metal oxides like titanium (IV) oxide, TiO2, have photocatalytic effects that can further oxidize VOC and other adsorbed species. Acetone is a frequently measured VOC in the atmosphere. In our research we study how acetone and other organic species adsorb onto TiO2 and react catalytically in the presence of atmospheric oxidants such as ozone.
Juvenile Coho Salmon Life History Variants in Humboldt Bay Tributaries
Presentation Year: 2018
We are assessing movement of juvenile Coho and adult straying among Freshwater Creek and two other Humboldt Bay tributaries using PIT tags and mark-recapture multi-state modeling. As salmon habitat becomes more fragmented through human actions, the need to better understand interactions between connected salmonid populations only grows. This research will focus on quantifying the frequency of juvenile dispersal between nearby watersheds to evaluate the need for changes in both management and monitoring. If there is significant movement between these watersheds, effective management and monitoring strategies of Freshwater Creek may need to be expanded to include nearby streams.
Kink Representation Outreach Project (KROP)
Presentation Year: 2018
Contemporary research does not support psychology’s historical framing of Bondage/discipline, dominance and submission, sadomasochism (BDSM) as a pathology. Multiple studies have suggested that supportive BDSM communities can play a positive role for people who practice BDSM. Drawing on these finding, this study consisted of a content analysis of top-selling human sexuality textbooks in the U.S. to determine the representation of BDSM. In particular, we explored how references to community experience were or were not represented. This poster reflects the importance of critically analyzing the influence of dominant narratives, social norms, and stigma in human sexuality textbooks.
Kombucha: A Chemical Investigation
Presentation Year: 2018
Kombucha is a popular drink which has been consumed for centuries. Its chemical properties and usefulness have only recently been investigated by scientists. In our research, we aim to add valuable data to the kombucha fermentation reaction, and find novel uses for the various products of the fermentation.
Language Use for the Next Fifty Years
Presentation Year: 2018
There are approximately 6,900 languages spoken around the world today. Of those, there are ten languages deemed most widely spoken by humans. Due to the trends in globalization, it is important for companies that exist internationally to take into consideration language trends. In this research performed as part of the international contest in modeling, we seek to predict the future top ten languages based on the generalized Abrams-Strogatz model of language competition.
Learning in a classroom setting: Audio, Visual, or Audiovisual Learning, which is best for recall?
Presentation Year: 2018
Students are impacted by differential modes of stimuli presentation while learning in multimedia environments. In the classroom, lecturers often display written text that corresponds with their spoken instruction, but how are students impacted by this? This study aims to address how visual (text), auditory, and pictorial stimuli in isolation or combination pertaining to the same novel subject affect recall accuracy. A cross-sectional between-subjects design was utilized in the study, and we found that students did better on recall questions when they were either taught with auditory, textual and pictorial information, or taught with auditory and pictorial information.
Learning the Ways of the Force
Presentation Year: 2018
Within any county there are economic forces that are constantly at odds with each other, and Humboldt County is no exception. Currently, it has been recognized that the skills in some of Humboldt County’s workforce are struggling to keep up with what is expected by employers. The goal of this project is to assess the needs of these potential employers, demonstrate how employers are coping with the issue, and to explore possible avenues that may improve the relationship between the potential employer’s and employee’s recruitment experience. It is the hope that informing the public of this issue may lend a hand in improving workforce readiness in Humboldt County.
LEEROY JENKINS: Identity Formation, Investment, and Social Structure of Guilds in World of Warcraft
Presentation Year: 2018
World of Warcraft is a story-based fantasy adventure massively multiplayer online role-playing game in which players customize characters and play through game content individually or in a group. Guilds in WoW are semi-permanent groups of players that come together with a common in-game agenda. Through participant observation and interviews, this project studies one guild within WoW, focusing on personal and group identity formation, and the relationship between perceived value and monetary/time investment. Examination of these topics builds reality within a fictional, virtual setting, and seeks to provide insight into the formation of structured subgroups within a larger society.
Lesson Study Across Waters
Presentation Year: 2018
Humboldt State University (HSU) students participated in the first part of an international lesson study by developing and implementing curriculum about climate change. Together with Swiss students from Haute Ecole Pédagogique du Canton de Vaud (HEP ), ideas of pedagogy were shared while developing, deploying, and revising an engaging lesson plan. With the goal to better understand lesson development and successful teaching strategies in the classroom, the students are to repeat this process at least three more times in Switzerland.
Load Forcasting in Humboldt County
Presentation Year: 2018
The objective of our project is the prediction of the electric power usage in Humboldt County in 2017. Load is the amount of power that is being drawn from the electrical grid due to consumer, industrial, and governmental practices. Forecasting load is used to predict future electrical power that is required to meet the short term or long term demand. We have created a linear regression analysis with a moving window to predict energy use for the next hour. Our work is a mathematical model that uses past data to achieve an efficient strategy for forecasting electricity loads.
Map of wildfire severity of the Santa Rosa: CA 2017
Presentation Year: 2018
This study examines the Santa Rosa fire in 2017 using remote sensing techniques to estimate the acreage of burned areas. Landsat 8 imagery of the pre- and post- fires were used to extrapolate the burn severity using two methods: (i) Normalized Burn Ratio (dNBR) and (ii) change detection analysis. The results of burn severity of both methods were on average 24% under-approximated comparison to values supplied by Cal Fire. While comparing acreage burn, provided by CAL FIRE indicates that our results were on average 76% ±8% accuracy in identifying burn severity. Of the two methods, the change detection using iso clustered unsupervised classification scheme was more accurate.
Mapping the Ancient Maya ‘Landscape’: A GIS approach to identify undocumented archaeological structures in Northwestern Belize
Presentation Year: 2018
This project presents a unique approach to mapping the Maya landscape of Northwestern Belize. The basis of the research will explore various GIS and cartographic techniques to manipulate and visualize geospatial data to map and produce a model to assist with predictive site survey of archaeological structures. As a result of this research, various images of relief visualization will be produced to help with pre-field planning for the summer 2018 field season. This project is part of the Dos Hombres to Gran Cacao Archaeology Project (DH2GC) led by Dr. Marisol Cortes-Rincon at Humboldt State University.
Mapping the Northcoast Environmental Center Adopt-A-Beach Program "Clean Beaches, Clean Water"
Presentation Year: 2018
For my internship I have been working with the Northcoast Environmental Center to use geospatial analysis and cartography to map their Adopt-A-Beach program. For my poster I would like to display the process and final outcome of the work I have been doing.
Measuring a Nations Fragility in Relation to Climate Change
Presentation Year: 2018
Concluding the 21st century, changing atmospheric processes will alter regional resource availability increasing a nation’s fragility. To examine the interconnected nature among socioeconomic structures and ecosystem services, a model was developed that measures a nation’s fragility in six categories: political, economic, social, agriculture, water resources, and culture. The model was then applied to the 10th most fragile nation, The Republic of Iraq, and the 158th most fragile nation, The United States of America. The United States will too experience great changes in the environment, but accessibility to mitigate greatly reduces their progression to a fragile state in contrast to Iraq.
Method for Direct Catalytic Spectrophotometric Determination of Iron by Flow Injection Analysis
Presentation Year: 2018
A sensitive flow injection (FI) system for determining dissolved iron concentrations involved a complex manifold: peristaltic pump, two electronically actuated 6-port, 2-postion injection valves, UV-Vis spectrophotometer and a desktop computer controlled by a software program for data acquisition. The FI method allows for direct preconcentration of iron in samples at trace metal nanomolar concentrations using the catalytic colorimetric indicator N, N-dimethyl-p-phenylenediamine dihydrochloride. Toyopearl AF-Chelate-650M chelating resin is used to remove the need for sample treatments before preconcentrating and eliminate interferences from iron binding to organic ligands in the sample matrix
Methodology for in situ DRIFTS Measurements of Atmospheric Heterogeneous Processes
Presentation Year: 2018
Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) is a form of infrared spectroscopy specific to analyzing powder solids. The DRIFTS apparatus contains a controlled environment in vacuum or atmospheric pressure conditions. Heterogeneous interactions of gas-solid samples in the DRIFTS cell allow for in situ measurements under a variety of environmental conditions to characterize functional groups and structural evolution during the process of a chemical reaction. Experiments studied the effect of acetone adsorption on Titanium dioxide (TiO2) surface for oxidation reactions on the surface.
Modification of Turbulent Pipe Flow Equations to Estimate the Vertical Velocity Profiles Under Woody Debris Jams
Presentation Year: 2018
Large woody debris (LWD) in rivers can increase fish and macroinvertebrate habitat, but also increases the risk of flooding and reduces channel navigability. This research aims to better understand the river hydraulics associated with LWD in order to find a balance between the beneficial and detrimental effects. By modifying equations of turbulent pipe flow, we attempt to estimate the vertical velocity profile of flow under LWD jams and compare the estimated profile to measured profiles from flume-simulated LWD jams.
Monitoring the Gonadal Maturation of Steelhead and Cutthroat Trout using Ultrasonic Imaging
Presentation Year: 2018
Ultrasonography is a versatile and noninvasive method that can be used to examine the internal anatomy, gonadal maturation, and the reproductive status of various freshwater and marine fishes. The goal of our study is to examine the feasibility of using ultrasound images to sex and determine oocyte maturation for Steelhead (Oncorhynchus mykiss) and Cutthroat Trout (O. clarkii) at the Humboldt State University Fish Hatchery. The objectives were to: (1) determine the most applicable control setting, (2) differentiate between a male and female, and (3) monitor oocyte maturation using ultrasound images. We were able to successfully identify the sex and determine gonadal maturation of fish.
More Than a Store: Culture and Food in Hoopa Valley
Presentation Year: 2018
The purpose of this research is to attempt to enhance the sense of culture and place in the interior design of the Hoopa Grocery Store that is currently in the planning process and is to be completed by this summer in Hoopa, CA. This is part of my senior capstone service learning project in support of Greenway Partners, a local project management firm, and their work with the Hoopa Valley Tribe. I am using a combination of historical imagery, Google Earth imagery, contemporary photos, Hupa tribal patterns and language, and maps to incorporate the unique and authentic sense of place of Hoopa Valley into the store as a symbol of the culture revitalization and survivance of the Hupa people.