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Diverse bacteria from the skin of the Eastern Red-backed salamander (Plethodon cinereus)
No full textAmphibians are facing a significant biodiversity crisis. In the last few decades, these animals have been decimated by two fungal pathogens, Batrachochytrium dendrobatidis (Bd), and Batrachochytrium salamandrivorans (Bsal). Curiously, the most common amphibian species in the northeastern United States, the Eastern Red-backed Salamander (Plethodon cinereus), appears to be largely resistant to Bd infections and also does not appear to be greatly affected by Bsal. The factors that contribute to this resistance are not fully understood. In this study, we isolated bacteria from P. cinereus skin swab samples from a total of three locations (Caesar Creek, Hills and Dales, and Taylorsville) surrounding Dayton, Ohio to investigate antimicrobial function of salamander skin bacteria. In total, we obtained a total of 104 bacterial isolates from the skin of 27 salamanders. We found that 33 of the isolates showed antifungal activity, suggesting a potential role in protecting these salamanders from the detrimental effects of Bd and Bsal. Overall, this study aids in our current understanding of the role of skin microbes in the protection against pathogens in P. cinereus and highlights how microbial communities may contribute to disease resistance across amphibian populations
Polarimetric Data: Scenario 08
No full textPolarimetric data Scenario 08 collected within the Automated Remote Sensing Solar Simulation Lab at the University of Dayton. The data were collected using a visible monochromatic division-of-time imaging polarimeter. The dataset is parameterized across different sensor, scene, and illumination geometries that mimic outdoor solar irradiance conditions
Polarimetric Data: Sparse Scenarios 01 - 04
No full textPolarimetric data sparse configuation Scenarios S01 through S04 collected within the Automated Remote Sensing Solar Simulation Lab at the University of Dayton. The data were collected using a visible RGB division-of-focal-plane imaging polarimeter. The dataset is parameterized across different sensor, scene, and illumination geometries that mimic outdoor solar irradiance conditions
The Intersection Between Child Marriage and Climate Change: An Example of Malawi
No full textChild marriage affects 39,000 girls daily, totaling 650 million women married before age eighteen globally. While driven by poverty, tradition, and limited education, climate change is emerging as a significant new factor, particularly in developing nations such as Malawi, where 42% of girls marry before age eighteen. An estimated 1.5 million girls in Malawi are at risk due to climate-exacerbated food insecurity and displacement. This paper, using feminist theories of intersectionality, postcolonial feminism, and feminist political ecology, examines the complex link between climate change and child marriage in Malawi. It critiques existing international, regional, and domestic policies, highlighting their inadequacy in addressing this intersection. The findings emphasize the urgent need for holistic strategies that acknowledge the multifaceted nature of child marriage within the context of climate change. Ultimately, this paper contributes to the discourse on safeguarding girls’ rights and well-being, stressing the global imperative to tackle the converging challenges of climate change and child marriage
Assessing the LGBTQ+ Beliefs, Behaviors, and Competency of Nutrition Professionals: A Mixed-Methods Study
Full text linkLesbian, gay, bisexual, transgender, and queer/questioning (LGBTQ+) individuals often experience disproportionate levels of physical and mental health issues including nutrition-specific issues such as eating disorders, body dysmorphia, and food insecurity related to psychological distress from discrimination and stigmatization. This study sought to understand nutrition professionals’ LGBTQ+ competence, beliefs, and behaviors. Researchers distributed 2 data collection tools to registered dietitian nutritionists (RDNs): the Gay Affirmative Practice Scale (GAP-Scale) and the LGBT Competency Assessment Tool (LGBT-CAT). Data from the GAP-Scale were numerically scored using a 5-point Likert scale, and data from LGBT-CAT were scored on a scale of 0 to 3 points. Qualitative responses were analyzed using a grounded theory approach. GAP-Scale results show that for the Belief Domain, the average score was 4.55, and for the Behavior Domain, the average score was 3.60. LGBT-CAT results show an overall lack of competence, with 4 themes described from qualitative analysis. Pearson correlation shows statistically significant positive correlations between 2 of the 7 items on the LGBT-CAT and responses on the GAP-Scale, with the highest positive correlation (0.850) found between Question 3 of the LGBT-CAT and Question 25 of the GAP-Scale. The RDNs assessed in this study express positive beliefs toward working with LGBTQ+, yet self-reported behaviors and professional actions show underdevelopment and lack of direct skills. Educational efforts at the pre-professional and continuing education levels for nutrition and dietetic professionals should aim to increase LGBTQ+ competence and behaviors to reduce these disparities
Synthesis and Characterization of Temperature- and pH-Responsive PIA-b-PNIPAM@Fe\u3csub\u3e3\u3c/sub\u3eO\u3csub\u3e4\u3c/sub\u3e Nanocomposites
Full text linkStimuli-responsive polymers (SRPs) have garnered significant attention in recent decades due to their immense potential in biomedical and environmental applications. When these SRPs are grafted onto magnetic nanoparticles, they form multifunctional nanocomposites capable of various complex applications, such as targeted drug delivery, advanced separations, and magnetic resonance imaging. In this study, we employed a one-step hydrothermal method using 3-aminopropyltrimethoxysilane (APTES) to synthesize APTES-modified Fe3O4 nanoparticles (APTES@Fe3O4) featuring reactive terminal amine groups. Subsequently, via two consecutive surface-initiated atom transfer radical polymerizations (SI-ATRP), pH- and temperature-responsive polymer blocks were grown from the Fe3O4 surface, resulting in the formation of poly(itaconic acid)-block-poly(N-isopropyl acrylamide) (PIA-b-PNIPAM)-grafted nanomagnetic particles (PIA-b-PNIPAM@Fe3O4). To confirm the chemical composition and assess how the particle morphology and size distribution of these SRP-based nanocomposites change in response to ambient pH and temperature stimuli, various characterization techniques were employed, including transmission electron microscopy, differential light scattering, and Fourier transform infrared spectroscopy. The results indicated successful synthesis, with PIA-b-PNIPAM@Fe3O4 demonstrating sensitivity to both temperature and pH
Roger Glass Center for the Arts
No full textView is of Roger Glass Center for the Arts, captured from Main and Stewart streets.https://ecommons.udayton.edu/mktg_images/1073/thumbnail.jp
DOC 2010-01 (Amended) Guidelines for the Development of Bachelor’s Plus Master’s Degree Programs
No full textBachelor’s Plus Master’s (BPM) degree programs permit highly qualified students to earn a bachelor\u27s degree and a master’s degree at an accelerated pace. Students enrolled in a BPM program will register for some graduate coursework while completing an undergraduate degree. Up to nine (9) credits of graduate coursework may double-count toward the fulfillment of requirements for both the bachelor\u27s and master’s degrees. Undergraduate students enrolled in a BPM program are designated as “Pre-BPM” by the registrar prior to full admission to the graduate program
Summer Diary
No full textTrue or false? Life at the University of Dayton in the summer moves at a slower pace untilthe adrenaline rush of a new academic year kicks in at the end of August