California Polytechnic State University

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    AS-970-24 Resolution on Suspending Curricular Review of Online Modalities for Summer Terms, 2024-2026

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    Suspends the requirement of review at the Senate-committee level of course modifications for faculty who wish to teach courses in a previously-unreviewed modality in the summer terms from Summer 2024 through Summer 2026; and further resolves that this resolution does not supersede the right of departments and colleges to maintain control over the timing and modality of course offerings; and further resolves that previously-unreviewed modalities will still be reviewed at the department and college levels according to current policies prior to being offered; and further resolves that any previously-unreviewed modality in a course offered pursuant to this resolution during a summer term from Summer 2024 through Summer 2026 will need to be approved through the regular curricular review process before being offered again after the Summer 2026 term

    AS-967-24 Resolution to Change the Add/Drop Period for Five-Week Summer Terms

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    Resolves that the Academic Senate of California Polytechnic State University, San Luis Obispo supports changing the add/drop timeline for the 5-week summer sessions to the end of the fifth day of instruction; and further resolves that the timeline to submit a late enrollment appeal during a 5-week summer session be changed to begin on the sixth day and end on the seventh day of instruction; and further resolves that this change goes into effect for the 2024 summer term; and also resolves that this policy will sunset after the 2026 summer term

    Leaning Pine Arboretum Gazebo- Phase 1: Preconstruction, Layout, Material Procurement

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    This essay outlines the thorough preconstruction procedure that went into building a pavilion in the university\u27s Leaning Pine Arboretum. Every step that our team took, from the preliminary surveying phase to the foundation laying prior to frame, is painstakingly planned and carried out. The main objective is to create a dynamic area that effortlessly combines education and recreation; it should be both a lively meeting place and a haven for students to study under cover. The team took a calculated risk to make sure our pre-construction phase was successful. This included carrying out thorough quantity takeoffs, keeping lines of communication open with engineers, and carefully inspecting the site to develop the layout in detail. In this approach, interdisciplinary collaboration was essential since it allowed us to conduct post-site layout inspections and make well-informed design revisions, especially with regard to the concrete footings of the Gazebo. Our goal is to design a Gazebo that not only fulfills practical requirements but also improves the arboretum\u27s general atmosphere through this meticulous and cooperative process. Through the process of pre-construction, our team honed their skills in time management, effective communication, and attention to detail

    A Data-Driven Framework For Analyzing And Predicting Social Media Engagement During Rumor Propagation

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    The spread of rumors on social media has become a significant concern, as platforms like X (formerly known as Twitter) enable rapid dissemination of unverified information. These rumors can shape public perception and behavior, making it crucial to understand the dynamics of their spread. The main objective of this study is to explore how users interact with rumor-related tweets and identify key factors that predict tweet engagement. By analyzing tweets from seven different rumor events, this research aims to uncover patterns in user engagement and provide insights into the spread of misinformation. The study utilized a dataset of tweets from events concerning COVID-19, Antifa, the 2020 Presidential Election, and the war in Ukraine. Machine learning models were employed to analyze engagement metrics such as retweets, quotes, likes, and replies. Key factors like user information and tweet sentiment were identified as significant predictors of engagement.The findings reveal that tweets from users with a large number of followers and those perceived to have positive or negative sentiment receive higher engagement. User information emerged as the most influential factor, followed by tweet sentiment. These insights can guide efforts to control and manage the spread of rumors on social media, helping to develop strategies to mitigate the negative effects of misinformation and enhance the reliability of information shared online

    Assessment Of Dune Change Using Historical Aerial And Satellite Photos, Topographic Surveys, And Wave Data At Toro Creek Beach

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    Coastal sand dunes play an important role in the littoral processes of California’s coastline. Functioning as both source and sink for sand, these dunes often protect coastal infrastructure and provide a buffer between anthropogenic development and coastal forces. At Toro Creek Beach, north of Morro Bay California, recent extreme winter storms have raised concerns about the erosion of the sand dunes that front California State Highway 1. This thesis attempts to characterize the historical growth and recession patterns of the Toro Creek dunes since 1977, the dune movement over the 2023-2024 winter seasons, the wave forcings behind recent high erosion events, and potential impacts of sea level rise. Four topographic surveys of the beach were conducted through the winter of 2024 and showed evidence of -11.5 ft and -12.8 ft of erosion north and south of the Toro Creek bridge. Historical aerial and satellite imagery was used to delineate the extent of the dunes at Toro Creek and estimate dune movement during this period. From 1977-2023, the dunes moved seaward 37.4 ft and 126.6 ft north and south of the bridge. Throughout this period, temporal erosion and accretion is seen on both sides of the bridge. The winters of 2021-2024 display dune erosion on at least one side of the Highway 1 bridge that approaches or exceeds yearly retreat rates developed by the USGS for shoreline (-4.9 ft/yr) and coastal cliffs (-1.6 ft/yr) in the Morro Bay area. Of these winters, 2023 witnessed the most erosion: -33.3 ft north of the bridge and ‑1.1 ft south of the bridge. This study utilized wave data from the Diablo Canyon Waverider buoy to develop a significant wave height climate specific to the orientation of Toro Creek Beach. Using tide data from the National Oceanic and Atmospheric Administration (NOAA) tide gauge in Port San Luis, I estimated total water level—the summation of significant wave height and tide—for Toro Creek. Subsequently, I evaluated wave runup using an empirical equation developed by Stockdon et al. (2006). I analyzed the total water level and runup height—the summation of runup and tidal stage—along with other coastal processes like wave direction and refraction during the peak events of the 2021-2024 winters. Among these years, 2023 experienced total water levels as high as 16.3 ft, and runup values as high as 14.3 ft—some of the highest since the start of analyzed wave data. Additionally, I calculated the impact sea level rise (SLR) would have on runup using our wave data, under an extreme sea level rise scenario of 6.4 ft. The number of 24-hour days per year during which runup height exceeds the extreme runup height reached during the December 28, 2023 storm increases from 0.01 to 95.06 with 6.4 ft SLR. The exceedance of the 17 ft FEMA Coastal Flood Zone VE elevation for Toro Creek increases from 0 to 6.60 24-hour days per year with 6.4 ft SLR. Overall, this study shows that dune erosion accompanies high wave runup heights, and that future SLR will increase the likelihood of dune erosion at Toro Creek beach

    Investigation Of Temperature, Solution Strength, And Applied Stress Effects On Cation Exchange Processes In Different Geosynthetic Clay Liner Products

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    An extensive laboratory test program was conducted to analyze and compare the cation exchange processes in three different varieties of sodium bentonite (Na-B) geosynthetic clay liners (GCLs) over increased conditioning durations up to 32 days and investigate the effects of temperature, solution strength, and applied stress. The goal of this test program was to establish whether the variables of temperature, solution strength, and applied stress improved or degraded the engineering properties of GCLs in laboratory testing and municipal solid waste (MSW) landfill applications. The GCLs were conditioned in liquids of increasing ionic strength, using deionized water and 2, 50, and 200 mM CaCl2 solutions to represent control, pore water, mild MSW leachate, and harsh MSW leachate. Conditioning periods were 1 to 32 days. Tests were conducted at 5°C, 20°C, 40°C, and 60°C and at 0 kPa, 30 kPa, and 500 kPa to represent stresses experienced by the cover and bottom liner. These variables were selected to represent geoenvironmental conditions observed in MSW landfill systems. Cation exchange processes in the bentonite component of the GCL were quantified by measuring the bound cation (BC) concentrations and cation exchange capacities (CEC) of the specimens and by conducting index testing to determine the dimensional measurements, final moisture content, and swell index of the conditioned bentonite. The temperature, electrical conductivity, total dissolved solids, sodium and calcium concentrations of the conditioning fluids were measured periodically for all specimens and the sodium concentration was measured for all specimens tested at applied stress. Temperature, solution strength, and applied vertical stress all affected the cation exchange processes in the bentonite component of GCLs. Increasing temperature, increased solution strength and decreased applied vertical stress were observed to increase cation exchange processes. The results of this study can be applied to quality assurance evaluations of in-service GCLs. In addition, the observation of the study indicates that GCLs used in cover liner systems for MSW landfills may be susceptible to high rates of cation exchange due to low overburden stresses and high surface temperatures. GCLs used in bottom liner may experience inhibited cation exchange rates as a result of high vertical stresses and relative lower temperatures

    Prosthetic Aid for Lifting (PAL)

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    Approximately 1.7 million people in the United States use a limb prosthetic [1]. For these individuals, their prosthetic often enables them to engage in their choice of physical activities. Many prosthetic companies design prosthetic limbs for use in specific athletic activities such as weightlifting. These devices are not designed for everyday wear or a large variety of tasks but enable the person to interact with free weights and workout machines. According to an email conversation between the team and Bob Radocy, Founder of Therapeutic Recreational Services (TRS Inc.) and upper limb amputee, while he could not reveal how many people purchased these attachments, he could say that three of their weightlifting attachments are the most popular attachments with the Black Iron Trainer being the most popular. And writing, “For myself, and I\u27m in the gym at least three times a week I combine a modified GRIP 2SS and my Black Iron Trainer and essentially access any type of exercise and weightlifting equipment designed for two-handed individuals.” TRS Inc. was founded in 1979 to address Bob Radocy’s frustration at the limited nature of commercially available prosthetics [2]. This all indicates that being able to interact with weightlifting equipment is popular among people who use prosthetics to aid in their exercise regimes. So much so that an amputee founded a lasting company primarily dedicated to the creation of these devices. This project is being done as part of California Polytechnic San Luis Obispo’s (Cal Poly SLO) Interdisciplinary Senior Engineering Project. Madeline Everson is a senior at Cal Poly SLO majoring in Materials Engineering who has a left hand that developed abnormally. Madeline enjoys lifting weights in the gym but is unable to do so in a safe and comfortable way with her current prosthetic. The objective of this project is to design and develop a new lower arm prosthetic specific to Madeline’s personal needs and weightlifting goals to allow her to exercise safely and effectively, but not necessarily serve as something she would wear every day. Madeline was previously fitted for a TRS prosthetic, but it has since deteriorated and now she wants to get a new prosthetic that solves the specific issues she had while using the TRS prosthetic. Even though the prosthetic was initially molded to fit her arm, a combination of her limb growth, deformation due to use, and her unique needs, has resulted in it no longer being able to assist her in the exercises she wants to engage in. By bringing this problem to a Senior Project team, a unique prosthetic specific to her needs may be created

    Promoting retention and success of underrepresented minorities in engineering

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    Equity gaps in higher education have long been a pressing concern, with factors like race, ethnicity, and socioeconomic status influencing college attendance, retention, and success rates. While CSU-wide initiatives have been implemented to reduce these disparities, Cal Poly\u27s distinctive role as the only campus transitioning into a Hispanic-serving institution calls for heightened efforts on our campus. Additionally, the persistence of equity gaps in STEM fields, combined with Cal Poly’s strong engineering program, makes it essential to focus on retaining and supporting underrepresented minorities (URM) in engineering disciplines

    Wearable Sensor-Based Gait and Balance in Elementary and Middle Schools

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    Exploring Human Responses in Conversations with AI Entities

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    This study argues that while AI systems have become increasingly advanced, they still evoke distinct emotional responses compared to human interactions, potentially limiting their effectiveness in emotionally-driven environments. We used the Emotiv Insight brain-computer interface to monitor participants\u27 emotional responses during controlled interactions with both AI systems and other humans. Key emotional metrics, such as arousal, focus, and stress, were recorded in real time, providing a detailed picture of the emotional dynamics at play in each type of interaction. Participants exhibited higher levels of excitement, stress, and focus during interactions with humans compared to AI systems, while other emotions like engagement and pleasure were relatively similar across both interaction types. These findings reveal that AI systems may struggle to evoke the same intensity of emotional responses as human interactions. Understanding these emotional differences is crucial for refining AI systems to foster more emotionally engaging and natural user experiences, contributing to the development of more effective communication tools in human-AI interactions

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