Angeline
Gatchalian
Sponsor: Michael Hill, Ph.D. Mechanical & Aerospace Engr Miocar is a non-profit, electric vehicle car sharing service operating in Richmond, Tulare/Kern, Escalon, and Stockton. We aim to apply software tools that streamline their operations to save time and money spent on related tasks by reducing manual labor. A cost model was used to determine time and cost associated with Miocar's operational tasks and to compare financial implications of their current system versus proposed solutions. We observed individual API calls associated with current operations and applied reverse-engineering to improve function and execute multiple API calls at once. We used the cost model to determine which tasks drove labor cost for Miocar. Reverse engineering enabled a web browser extension to efficiently execute these tasks. Preliminary results indicate that developing a browser extension will save Miocar up to $1300 per month. The implementation of the first component of the web extension will reduce manual labor by at least 2 hours per week. Developing a browser extension to expedite operational tasks will yield significant benefits for Miocar. In the future, developing stand-alone software extension may offer a more long-term, reliable solution. Historical Ecology of Fisheries in San Francisco Bay: Stable Isotope Analyses of Fish Bones from Caurismin Warep 'Ómmutka (CA-SFR-4/H)
Abstract profile. Full document pending author claim.
Authors:
Angeline Gatchalian
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About Paper:
As evidenced by the impressive and famous shellmounds of San Francisco Bay, ancestral Ohlone populations on San Francisco Bay heavily relied on fish and shellfish as staple foods. Recent changes to waterways, including damming, canalization, pollution, and introduction of invasive species, have had major impacts on traditional fisheries in Central California. In some cases, these effects have led to the endangerment or even extinction of species. Archaeological collections retain important clues about the original structure of our fisheries. We examine bone size as well as carbon and nitrogen isotopes from a range of fish species recovered from Caurismin Warep 'Ómmutka (CA-SFR-4; "Place of the Yerba Buena (Is)land in the Bay Site"), including rockfish, cabezon, shark, surfperch, salmonids, silversides, herring, and anchovy. Highlights of the results indicate that salmonids show two distinct isotopic signatures, one consistent with growing in marine environments and the other consistent with a primarily freshwater existence. We compare the results to other San Francisco County sites to examine long-term changes in fisheries in the west part of the Bay. Results suggest increased representation of smaller schooling species over time within sites and decreased sizes of several fish during the Middle Holocene. Investigating Transcriptional Regulators in Mouse Spermatogenesis Amr Gebrail
Source:
UC Davis / Anthropology / 2025
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Co-authors:
Angeline Gatchalian