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2024 Commencement College of Liberal Arts and Sciences Ceremony Video
No full textVideo presentation of Portland State University\u27s College of Liberal Arts and Sciences Commencement Ceremony.
The ceremony was held on June 16, 2024, at Moda Center in Portland, Oregon.https://pdxscholar.library.pdx.edu/commencement_2020s/1010/thumbnail.jp
Cu Nanowire - Impregnated Activated Carbon Fiber for Antibacterial Applications
No full textMetal nanowires are a 1D structure possessing distinct properties suitable for diverse applications. Copper nanowires (Cu NW) have garnered attention in recent times, particularly as an antibacterial material. Nevertheless, their utilization as a bandage or dressing material necessitates a suitable support, an aspect that remains largely unexplored. In this study, we have developed activated carbon fiber (ACF)-supported Cu NW using the chemical reduction and wet impregnation methods. Tested against Escherichia coli and Staphylococcus aureus, Cu NW/ACF exhibits 83 - 86% reduction in the bacterial growth. The improved antibacterial activity of the material is attributed to the relatively slow release of Cu ions from Cu NW, attributed to the Kelvin effect. Biocompatibility test confirms less than 1.5% hemolysis of erythrocytes, indicating the potential application of the composite as a bandage or dressing material
Potential Expansion of Plants with Crassulacean Acid Metabolism in the Anthropocene
No full textAn overlooked phenomenon is a potential increase in the distribution and abundance of plants with the highly water-usage-efficient crassulacean acid metabolism (CAM). In the present article, we critically analyze recent research to investigate to what extent and why CAM plants may have recently expanded their range and abundance under global change. We discuss the ecophysiological and evolutionary mechanisms linked with CAM succulence and the drivers underlying potential CAM expansion, including drought, warming, and atmospheric carbon dioxide enrichment. We further map the biogeographic pattern of CAM expansion and show that some CAM plants (e.g., Cylindropuntia, Opuntia, and Agave) are expanding and encroaching within dryland landscapes worldwide. Our results collectively highlight the recent expansion of CAM plants, a trend that could be sustained under increasing aridity with climate change. We recommend that CAM expansion be evaluated in a data-model integrated framework to better understand and predict the ecological and socioeconomic consequences of CAM expansion during the Anthropocene
Eviction in Oregon\u27s Subsidized Affordable Housing
Get PDFDespite Oregon\u27s expanded investments in affordable housing development and eviction prevention, over 5,400 eviction cases were filed in the state’s subsidized housing from January 2019 to December 2023. This report maps out the landscape of subsidized housing eviction in Oregon and brings attention to the high share of eviction judgments in subsidized eviction cases, the disproportionate rate of eviction filings from housing-authority-contracted management companies and nonprofit housing providers, and the great disparities in legal representation between landlords and tenants
Faculty Senate Monthly Packet February 2024
Get PDFThe February 5, 2024 monthly packet includes the February agenda, appendices, and the Faculty Senate minutes and attachments from the meeting held February 5, 2024
Critical Conversations on Teaching and Learning Decolonial Narratives: A Duoethnography of Firekeeper’s Daughter
Get PDFExploring the role of diverse young adult (YA) literature in fostering social justice awareness, this paper focuses on the YA novel Firekeeper’s Daughter as a tool for understanding decolonization and our own individual privileges and responsibilities as they relate to colonization. Three researchers, each with differing positionalities and worldviews, employ a polyvocal methodology of duoethnography to examine the text\u27s challenges to settler colonialism and its illumination of historical and systemic injustices. Through our dialogic exchange, we aim to contribute to a wider conversation about the potential of literature storytelling, and authentic, vulnerable conversations to inspire transformative change
Planting the Seed: Using Research As a Tool to Revitalize Puberty Ceremonies in Anishinaabe Communities
Get PDFPurpose: The purpose of this work is to honor the wisdoms of Anishinaabe Elders, community and culture by interweaving these teachings with my own (first author) Anishinaabe experiences and a research project. Ceremonies are an important health practice for Anishinaabe people. This project aimed to gain a clearer conceptualization of the protective role of Anishinaabe puberty ceremonies on health in adolescence and across the lifespan. Design/methodology/approach Spiritual offerings guided this project at every stage including inviting Elders and community members into shared spaces of storytelling and teaching elicitation and grounding me as I carefully adopted the use of a western tool (research) in sacred community spaces. Elders were invited to share their experiences and perspectives. Three community members engaged with the interview transcripts on their own before coming together to discuss themes, patterns and insights that arose for them. This group coding discussion constructed the structural foundation of the findings.
Findings: An Anishinaabe perspective on youth development emerged. Key aspects of this model included a foundation of ceremonial experiences that spiritually prepares a child for adulthood and impending life’s challenges. As one transitions into adulthood, they accept the responsibilities of being caretakers of their families and communities and gain new tools to contribute to Anishinaabe society. Ideally, this society prioritizes Anishinaabe spirituality, language and way of life. Originality/value Frameworks of health, grounded in unique community wisdoms and worldviews, are imperative to repair spiritual and community relationships damaged in a history of colonialism. An Anishinaabe perspective on youth development may shed light on shared Indigenous experiences of cultural restoration and continuity
Tissue-Specific Effects of Temperature and Salinity on the Cell Cycle and Apoptosis in the Nile Tilapia (oreochromis Niloticus).
Get PDFThe Nile Tilapia (Oreochromis niloticus) evolved in warm, freshwater rivers, but possesses a broad physiological tolerance to a range of environmental conditions. Due to this hardiness and resilience, this species has been successfully introduced to regions widely outside of its native range. Here, we examine the impact of temperature and salinity variation on this species at the sub-lethal level. Specifically, Nile Tilapia were exposed to two temperatures (21 °C or 14 °C) and three salinities (0, 16, 34 ppt) for 1-h. Given their native habitat, the 21 °C / 0 ppt exposure was considered the control condition. Both cell cycle arrest and apoptosis represent sub-lethal but deleterious responses to environmental stress. Flow cytometry was used to assess the percentage of cells in a given stage of the cell cycle as a metric of cell cycle arrest in spleen and liver. Percentage of apoptotic cells were also quantified. Spleen was more sensitive to cold stress, demonstrating an increase in cells in the G2/M phase after experimental treatment. Liver, however, was more sensitive to salinity stress, with a significant increase in cells stalled in G2/M phase at higher salinities, which is in keeping with the freshwater evolutionary history of the species. A modest apoptotic signal was observed in liver but not in spleen. Together, these findings demonstrate that even short, acute exposures to cold temperatures and elevated salinity can cause sub-lethal damage in a species that is otherwise tolerant of environmental stress at the whole organism level
Prosodic Analysis of \u3ci\u3eWh\u3c/i\u3e-indeterminate Questions in L2 Korean
Get PDFWh-indeterminate questions in Korean are potentially ambiguous due to the limited use of morpho-syntactic markers. When an explicit morpheme indicating the question type is not used, the disambiguation of the question relies, primarily, on prosodic cues. Drawing from previous studies of L1 Korean, this study examines the production and perception of intonation patterns of English L1 learners of Korean for wh- and yes-no questions in Korean. That examination allows speculation on potential L1 influence in the learners\u27 production. Five English L1 learners of Korean who received formal instruction in Korean at a U.S. university completed a production and perception test consisting of 10 dialogues featuring ambiguous wh-indeterminate questions. Their speech was analyzed for pitch range, boundary tone, and accentual phrasing. The findings revealed that L2 Korean learners are able to produce and perceive wh-questions in a more target- like manner than yes-no questions. Learners\u27 proficiency level significantly influenced pitch peak and pitch range, with advanced learners showing a resemblance to L1 production. However, yes- no questions remained non-target-like across all proficiency levels. Additionally, there was evidence of L1 influence from English in boundary tone choices and pitch ranges, as well as inconsistency in accentual phrasing. These results suggest an interplay between language proficiency and L2 prosody and emphasize the need to incorporate targeted prosodic training within the curriculum for Teaching Korean as a Foreign Language
Exploring Consent: An Analysis of Consent in Dark Romance and Contemporary Romance Books
Get PDFThis research paper analyzes whether consent is found more frequently in dark romance or contemporary romance books by examining the language used, who speaks the phrases, and the contexts in which they are spoken. This paper explores the dominant sexual script in contemporary romance books and its influence on representations of consent, contrasting this with the absence of such a script in dark romance, which permits more varied incorporations of consent. This analysis was done through content analysis-- word frequency, consent analysis, and thematic coding. Word frequency provided evidence of consent use in the books, while consent analysis and thematic coding provided additional context to the situations these phrases appeared in. The research found that dark romance, a subgenre that does not follow the dominant sexual script, had more instances of verbal consent appearing, especially if the phrases were more vulgar. Publishers and authors follow the dominant—cultural—sexual script, which has allowed for consent to appear less frequently and in more vanilla ways, which does not reflect people wanting to read about consent in romance books