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Heterogeneity in Hospital Consolidation
Get PDFThis paper examines the heterogeneity between two types of hospital consolidations—mergers and system-joinings. I examine changes in admissions, employment outcomes, beds in different medical units, surgeries, costs, case mix, and discharges. I find that hospital mergers and system-joiners are fundamentally different among almost all outcomes examined. Additionally, I extend my analysis by examining those hospitals that, at the time of consolidation, are closer to either their fellow merging hospital or a fellow system-member hospital. I find no meaningful correlation between distance and outcomes
Modifications to the Spiral Array: A Computational Approach to Music Analysis
Get PDFThe Spiral Array is a geometric model of musical tonality and exists as a tool in computer-aided music analysis. The model was first published in 2000 by Elaine Chew, PhD, in her thesis, Towards a Mathematical Model of Tonality. This project aimed to restructure the Spiral Array, limiting user ambiguity and optimizing the application of musical key finding. The existing model defines pitch, chord, and key location to form a series of spirals dependent on a set of flexible weights. In our research we were able to identify potential issues with the pitch definitions themselves and experiment with methods of addressing concerns by modifying existing pitch definitions and key algorithms produced by the model’s original creator. Additionally, we were able to improve the model’s potential for musical key finding by modifying these weights through gradient descent, given parameters derived from the Overtone Series and observations of common tonal practice. Our current model and algorithm allow users to analyze the key center of a musical excerpt in a way that is largely consistent with the overtone series and common tonal practice. This paper will highlight the journey of troubleshooting an existing model, demonstrate our successes, and provide insight into the field of Music Information Retrieval
Global Patterns of Genetic Diversity and Species Delimitation in the Lichen-Forming Fungus Cladia aggregata: A Restriction Site Associated DNA Sequencing (RAD-seq) Analysis Across Neotropical, Australasian, and Asian Populations
No full textCladia aggregata is a group of lichen-forming fungi comprising multiple species which are difficult to differentiate. C. aggregata has a wide distribution on several different continents but is primarily found in the southern hemisphere. We aimed to further delimit the species complex while also investigating the relatedness of the different species, where they can be found geographically, and what phenotypic traits they possess. We used Restriction Site Associated DNA Sequencing (RAD-seq) to compare thousands of loci across 91 individuals from the Americas, Asia, and Australasia. All Asian samples formed a distinct clade in all phylogenetic trees. Asia, as a distinct group, was compared to C. aggregata sensu stricto (strict sense) to investigate if the Asian populations are a different species. All of our analyses suggest the Asian samples are genetically distinct and form a monophyletic clade. We propose this Asian clade is a newly identified species we call Cladia vividus. There are also genetically distinct populations in South America and the Caribbean. Our analysis suggests the C. aggregata complex is more diverse than previously thought and this highlights the need for further research into the taxonomy and phylogenetics of this species complex and lichen in general
Athletics
No full textDoug Bruno (LAS ’73, MA ’88), lifelong Blue Demon and coaching legend, steps down as DePaul women\u27s basketball head coach after elevating the program to national prominence over nearly four decades
A Mixed Methods Survey to Highlight Retrospective Drug Spending
No full textThe financial impact of substance use is poorly understood. What research has been conducted has focused on societal and medical costs, rarely on the personal finances of substance users. Less research has been conducted on the finances of people currently in recovery and abstinence. To fill in this gap, 284 current Oxford House residents completed a survey that inquired about demographics, spending habits, and reasons for staying in Oxford House. Following analysis, it was found that previous drug/alcohol spending is a highly variable metric, with a range of 30,000 per month. In addition, the sample was homogenous in terms of race and income (80% white, 53% below $10,000 per year), but heterogenous in terms of gender and drug choice. A mediation model found no significant interactions between drug spending, income before treatment, and recovery length. After entering recovery, spending on finical health and security were common among the respondents, but such financial security was not a reason people stayed. People reported staying due to the unique culture of Oxford House above all else. This suggests that setting fit is more impactful than material support when it comes to substance use retention. Future research should conduct more in-depth qualitative analysis to understand the nuances of this interaction as well as obtain a more heterogeneous sample
Mrs. Margaret C. George to Elizabeth Ann Seton, undated
No full texthttps://via.library.depaul.edu/seton_family_papers/1118/thumbnail.jp
Rev. John F. Moranville to Elizabeth Ann Seton, undated
No full texthttps://via.library.depaul.edu/seton_family_papers/1141/thumbnail.jp
Rt. Rev. James Roosevelt Bayley, copies of letters of E.A. Seton to George Weis
No full texthttps://via.library.depaul.edu/seton_family_papers/1181/thumbnail.jp
Elizabeth Ann Seton to George Weise, undated
No full texthttps://via.library.depaul.edu/seton_family_papers/1168/thumbnail.jp
