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MULTI-STAGE ALTERATION IN COSO GEOTHERMAL SYSTEM AS REVEALED BY MACHINE LEARNING
No full textThe U.S. Dept. of Energy (DOE) initiated a program to explore the potential for Enhanced Geothermal Systems (EGS) wherein hydraulic fracturing creates new fractures and re-opens existing ones to increase porosity and permeability. The DOE designated several active geothermal areas in the U.S. to test this concept such as the Coso Geothermal Area in California. This research product focused on the modal mineralogy, the alteration sequences, and late-stage calcite fill and veins in well 42A-16. Nine thin sections from depths ranging from 1000 ft to 8930 ft were imaged using Scanning Electron Microscopy (SEM) for mineral chemical composition. Qualitative Evaluation of Minerals by Scanning Electron Microscopy (QEMSCAN) was used for the initial creation of modal mineralogy and colored scanning. Image processing through ImageJ and machine learning tool, ilastik, were used to better reconstruct modal mineralogy, and understand the relationship between calcite alongside other minerals as a product of temperature, pressure, and depth, within the system. The calcite shows strong correlations with major rock forming minerals quartz, plagioclase, and potassium feldspar throughout the well, and alteration phases such as chlorite and amphiboles at depth. The order of the alteration sequence in Coso lay the framework for an environment conducive to late-stage calcite vein precipitation. Results also suggest calcite vein fill decreased modern permeability and porosity by a magnitude of 10. This study could serve as a reason to further investigate the effects of EGS on carbonates and other minerals within a system that is out of equilibrium.A one-year embargo was granted for this item.Academic Major: Earth Science
Identification of Compounds that Modulate Ependymal Cell Cilia Beat Frequency
No full textEpendymal cells line the ventricles of the central nervous system and contain motile cilia that project into the cerebrospinal fluid. The beating of these cilia is thought to contribute to the circulation and flow patterns of cerebrospinal fluid. Abnormalities to cerebrospinal fluid flow and defects to ependymal cilia are linked to a variety of conditions such as hydrocephalus, mood disorders and traumatic brain injury. Altering cilia beat frequency and the flow patterns of the cerebrospinal fluid would allow for more comprehensive pathophysiological studies to be conducted on the role that flow networks and cilia play in these conditions. However, there is no comprehensive list of compounds that alter ependymal cell cilia beating. Here, we use agonists of identified G-protein coupled receptors to identify novel compounds that alter ependymal ciliary beating. We show that the application of adenosine and norepinephrine increase the frequency of ependymal cell ciliary beating, GABA has a null effect, and endothelin-1 can decrease cilia beating. Additionally, we show that there is variance in the normal beat frequency of cilia between the lateral ventricle and dorsal 3rd ventricle, suggesting there may be differences in how compounds interact with cilia within specific ventricles. Given this data and existing literature, we hypothesize that ependymal cells contain sensory signaling systems that modulate ciliary beat frequency through complex mechanisms likely involving the activation of PKA from increased levels of cAMP.A five-year embargo was granted for this item.Academic Major: Neuroscienc
City of Bexley: Building Codes Reimagined
Get PDFCourse Code: SENR/AEDE 4567This report outlines a sustainability-focused collaboration between The City of Bexley and The Ohio State University students to improve residential building codes. Drawing from case studies and expert input, the report presents actionable recommendations in three key areas: energy efficiency, stormwater drainage, and construction waste reduction. Proposed measures include updates to insulation standards, requirements for electric vehicle (EV) readiness, support for home electrification, adoption of permeable pavement, and improved recycling of construction and demolition materials. These strategies aim to help Bexley advance its climate goals while maintaining its leadership in sustainable urban planning.Academic Major: Environment, Economy, Development, and SustainabilityAcademic Major: Sustainable Agricultur
When does sm mean all?
Get PDFEnglish has two quantity words that sound very similar (sm and some) but have been argued to have different properties (Postal 1964; Milsark 1977). However, this has never been established empirically. In this experiment, we test the hypothesis that sm has only a logical “some, and possibly all” interpretation, whereas some has a pragmatic “some, but not all” interpretation. In this project, I specifically test adult English speakers’ interpretations of sentences with sm in the subject position, as in the phrase “Sm kids crossed the street.” We hypothesize that this sentence will be acceptable when participants see 3 of 4 kids cross the street and when they see 4 of 4 kids cross the street. To test this hypothesis, I use a stop-motion video context depicting either 3 or 4 kids or 4 or 4 kids in the same scenario, paired with the same sentence in audio. There are 16 experimental items, with six distractor items. Participants indicate acceptance of the sentences as accurate descriptions of the scenarios by pressing keys on a laptop computer. Because previous work has shown that both executive function and lexical ability are predictive of implicature generation, we measure participants’ lexicons using Lextales and measure executive function abilities using the TabCat executive function battery. Results consist of descriptive abilities of acceptance of the sm condition in each scenario and their lexical and executive function scores. These will be entered into a multiple regression analysis. Findings will inform current thinking regarding possible interpretations of the candidate quantifiers.Undergraduate Research Apprentice Program (URAP) 2024-2025National Science Foundation (NSF-1551903)No embargoAcademic Major: Speech and Hearing ScienceAcademic Major: Psycholog
Artelier
No full textIntroduction:
Using the concept of humanistic art therapy to design a comprehensive toolkit for self-guided and therapeutic art activities. It is meant for adolescents age 11-19. Its purpose is to provide adolescents with a structured yet flexible space to explore cultural identity through creative, mindful activities. The toolkit will help adolescents bridge cultural gaps, foster self-acceptance, and alleviate stress or anxiety related to identity confusion.
Methods:
I used both primary and secondary research methods such as interviews, media scans, literature reviews, user personas, and user journey maps. These methods helped shape the design and content of the toolkit. It also offers a glimpse into how different personas might engage with the product.
Results/Current status:
This art therapy toolkit is designed to give adolescents a creative space to explore their cultural identity while supporting their emotional well-being. With a focus on creativity and mindfulness, it helps young people navigate identity challenges, build self-acceptance, and manage stress. Through research and thoughtful design, the toolkit combines fun, therapeutic activities in a way that feels empathetic and approachable. As it stands, the toolkit is a helpful resource, but there’s always room to grow, whether its by expanding to other age groups or tailoring it to different cultural contexts. It’s a tool that can continue to support personal growth and self-expression for many people.
Conclusions:
After creating a brand identity that feels educational, light-hearted, relaxing, and empathetic, the following design solutions were implemented: physical toolkit packaging, toolkit contents and materials, brand explanation video, 2 fully developed webpages for a website, and promotional merchandise. The toolkit contains an introduction pamphlet, reflection journal, instructional guide and art supplies.No embargoAcademic Major: Visual Communication Desig
Council on Academic Affairs: Minutes (March 19, 2025)
No full textMinutes from the Council on Academic Affairs' meeting on March 19, 2025
Frictional Properties of Southern San Andreas Fault Gouge From Ferrum, CA
No full textThe San Andreas Fault (SAF) has long been recognized as a weak fault that demonstrates spaciotemporal variability in terms of the mode (i.e., seismic vs aseismic) of slip. The nature of fault creep and seismogenic slip depends on the shear strength of the principal slip zone and the constitutive properties of the surrounding damage zone. Ultimately the state of stress in the near fault region should be controlled by the weakest material in the fault zone. I conducted laboratory experiments testing the frictional properties of three samples from the Southern San Andreas Fault at Ferrum, CA. These samples included material from the principal slip zone (PSZ) of the Southern San Andreas fault, a surrounding mudstone, and a surrounding sandstone. Analysis of these samples using the MATLAB toolbox RSFit3000 indicated that the PSZ sample is remarkably weak with coefficient of friction of ~0.04. The surrounding mudstone has a coefficient of friction of ~0.14 and the surrounding sandstone has a coefficient of ~0.41. Analysis also indicates that all samples are velocity strengthening, with the PSZ sample being the least velocity strengthening. XRD analysis indicates the presence of talc in the clay composition of the PSZ sample, which could explain the weak coefficient of friction relative to the compositionally similar mudstone. My results explain the difference in structures observed between the PSZ (simple shear and rotated clasts) and the surrounding lithologies (brittle deformation).No embargoAcademic Major: Earth Science
Clinical immunomonitoring as a novel risk prediction method: Establishing accuracy and reproducibility
No full textThe content is solely the responsibility of the authors and does not necessarily represent the official views of the funding agencies. The funding agencies had no role in study design; in the collection, analysis and interpretation of data; in the writing of the report; and in the decision to submit the report for publication.Background: Impaired immunoresponsiveness has been linked to morbidity and mortality in various settings. My honors research mentor, Dr. Gillespie, has produced data suggesting clinical value to immunomonitoring. However, her methods are scientific and required clinical translation. To do so, she repurposed existing mechanical components (e.g., syringe) to sterilely transfer (i.e., dose) whole blood from a collection vacutainer into an immunomonitoring vacutainer. Below, we present data produced to determine the smallest volume of whole blood that could be dosed accurately (percent recovery 95-105%) and reproducibly (coefficient of variation <10%). Methods: Using Dr. Gillespie’s novel method, whole blood was dosed into immunomonitoring vacutainers in the following amounts: 50μL, 100μL, 200μL, 300μL, 400μL, and 500μL. Each condition was repeated four times, producing 24 replicates. Vacutainers were weighed before and after dosing, with the difference converted to microliters. Percent recovery ((difference in weights μL/intended dose μL)*100) and coefficients of variation ((standard deviation/mean difference in weights)*100) were calculated. Results: Percent recovery ranged from 98.1 to 134.4 (Mean= 108.95; SD=9.901). The 50μL transfer was the lowest performing condition (Range=101.6-134.4) and the 500μL transfer was the highest performing condition (Range=98.98-104.6). Coefficients of variation were 12.4%, 5.5%, 5.7%, 4.8%, 2.6%, and 2.3% for the 50μL, 100μL, 200μL, 300μL, 400μL, and 500μL conditions, respectively. Conclusions: The 300-500μL transfers satisfied the team’s a priori criteria for accuracy and reproducibility. Given the importance of consistent dosing of whole blood in immunomonitoring, additional clinical parameters must be assessed (e.g., variation across users). However, these data establish the method as accurate and reproducible when completed as intended.Ohio Third FrontierKeenan Center at the Ohio State UniversityA five-year embargo was granted for this item.Academic Major: Nursin
Developing Digital Resources for Place-Based Learning in Grades 6-8: A Columbus City Schools Partnership
Get PDFCourse Code: ENR 4900.01This project is part of a multi-group pilot partnership with Columbus City Schools to introduce place-based, outdoor learning activities to aid in instruction of grades 6-8 natural science learning standards. The overarching goal of the Urban Eco-Explorers program is to foster positive, educational experiences for kids regardless of where they live in the city.
This report specifically addresses the work done to create teacher-facing resources, or the tools needed to administer the activities. This report showcases the creation of site-specific school maps for each activity and the development of a website created in collaboration with the Eco-Explorers curriculum groups to showcase their activities and lesson plans.Academic Major: Natural Resource ManagementAcademic Major: Environmental ScienceAcademic Major: Environmental Policy and Decision Makin
Recreational Colonialism and the Rhetorical Landscapes of the Outdoors
No full textIntroduction: The peaks are everywhere -- Settler rhetorics of "the outdoors" -- Bikepacking : rhetorical landscapes and settler placemaking -- Rock climbing : frontier authenticity, whiteness, and "desert pioneers" -- Ultrarunning : settler imaginaries and the born to run effect -- The ski resort : (re)creating space and selling recreational colonialism -- "No desecration for recreation! save the peaks!" -- The pipeline as a site of Indigenous resistance and solidarity -- Community listening, relationality, and the public art of the peaks -- Coda: Becoming complicit.Item embargoed for three year