Katarina
Kent
Sponsor: Erin Hamilton, Ph.D. Sociology My honors thesis research dives into the complicated and layered disparities of black maternal health in America. The research focuses on three key issues: factors contributing to detrimental maternal healthcare practices, how these factors impact black mothers specifically, and how pre/postnatal healthcare can effectively treat black mothers and their babies. The qualitative secondary analysis research identifies the factors that are contributing to unsettling black maternal mortality rates. The research studies how pre/postnatal healthcare can adapt to the needs of the black mothers to improve the quality of care received. Positive changes for black women's pre/postnatal care includes communication between black mothers and medical professionals, adequate resources for black mothers, and black women's voices being heard in medical spaces. It is important for black mothers to feel that they have a say in medical environments, especially when it comes to their maternal health and their infant's health. One of the goals of the research is to explore how resources that black women require for their maternal healthcare can be successfully provided. Black mothers' experiences can be used to increase support for all mothers and propose welcome changes needed in America's maternal healthcare system that will benefit all women. Using Grape Volatilome as a way to Understand and Track Grape Maturity
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Katarina Kent
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Extreme weather events-heat waves, drought, floods and frost- have impacted California viticulture. Exorbatant environmental conditions can alter grape metabolism, with heat waves in particular becoming more common. Elevated temperatures accelerate ripening, leading to imbalanced sugar-to-acid ratios and alteration of volatile secondary metabolites responsible for grape-derived aroma in finished wines. Grape volatilome were examined in four cultivars (Zinfandel, Cabernet Sauvignon, Sauvignon Blanc, and Chardonnay) across four maturity stages (pre-veraison, veraison, post-veraison, and harvest) over two years. Volatile compounds in grape headspace were analyzed using an optimized SPME-GC-MS method. Results showed that pH, sugar concentration, and titratable acidity did not significantly affect volatile compound concentrations during headspace analysis. Among tested buffers, gluconolactone provided the strongest responses across compound classes, while the presence of seeds suppressed responses for most compounds. Using this optimized method, grape samples were analyzed and visualized with principal component analysis. Across cultivars, terpenes (e.g., citronellol, geraniol) were strongly associated with post-veraison and harvest, while C6 alcohols correlated with pre- veraison and veraison. Contrastingly, C6 aldehydes correlated with post-veraison and harvest, showing a metabolic shift from C6 alcohol to C6 aldehyde production via the lipoxygenase pathway, indicating signature ripening patterns could be used to determine ripeness instead of sugar/acid measurements. Sex Differences in Lexical Biomarkers of APOE- ε4 Risk in Cognitively Normal Older Adults Timothy Keroles
Source:
UC Davis / Chemical Engineering / 2026
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Katarina Kent