Texas A&M University

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    What happens to nitrogen in soils?

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    Going for the Green

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    FORO

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    When I first started this project I, like many others, had this preconceived notion that the majority of people that experienced post-traumatic stress disorder (PTSD) were combat veterans. My prior service might be to blame in part, but none-the-less I was able to learn from this mistake. I soon learned that a majority of people that have experienced PTSD were survivors of sexual assault. Most of these survivors were assaulted by people whom they knew. This revelation has made a traumatic impact on my project. With further examination, I learned that sexual assault is comparable to, or larger than, the likelihood of a PTSD diagnosis associated with severe combat exposure or civilian sexual assault. These compounded discoveries have led me to use sexual assault reports as the key ingredient in locating a site in Texas that would be prevalent to the community in the vicinity. This location would also embody the safety of privacy, and embrace a setting that would liberate patients from the stressful environment in the city encompassing them

    Evaluation of a Cardiovascular Model Fabrication Method for Experimental Flow Analysis

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    Heart failure occurs in over 15 million individuals worldwide and is the direct cause of 55,000 annual deaths in the US. Most deaths occur in individuals with end-stage heart failure, which has resulted in the use of cardiac assist devices, such as the left ventricular assist device (LVAD), to combat end stage heart disease. However, despite their benefits, LVADs can cause postoperative complications, such as stroke, that remain a substantial challenge in the field of cardiovascular disease and occur in 15% of patients within 2 years after receiving an implanted LVAD. Among other factors, studies have linked the occurrence of stroke to geometric factors such as the inlet cannulation angle within the ventricle and the outlet cannulation angle of the LVAD into the aorta. This observed relationship between hemodynamic irregularities caused by implantation geometry and stroke was further investigated through computational fluid dynamics studies; however, to achieve reliable results, computational studies should be experimentally validated through methods such as in vivo data or benchtop models in mock circulatory loops. A major hurdle in this process is fabricating anatomical models that could be used in benchtop mock circulatory loops. This study evaluates a fabrication method of patient-specific aortic arch models for implementation in a mock circulatory loop. The objective of this work is to establish a cost and time-efficient manufacturing method to produce anatomical models for benchtop mock circulatory flow loops that mimic the geometry of the native anatomy, are compliant, and are optically clear to enable full-field flow measurements with particle image velocimetry. Specifically, two models are created, one from generalized physiologic data and one from patient-specific medical imaging data. The method established in this study successfully produced aorta phantom models in a cost and time-efficient manner with adequate optical, geometric, and mechanical properties. The phantom geometry, wall thickness, and dimensions replicate the original computational model. Image distortion was minimal, as the phantom model was nearly indistinguishable in a solution of matched refractive indices. Finally, the model was inserted into a mechanical circulatory loop to evaluate functionality and displayed the ability to support force and pressure generated by physiological flow. Future studies will include upgrading the experimental apparatus to simulate and quantitatively analyze fluid flow. The fabrication method detailed in this study will aid further investigations into LVAD complications and disease progression

    Sailing Trophy Cases

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    various sizesSailing trophies, located in two cases. Many of these are trophies from the Harvest Moon Regatta

    Digital Resource 7: BKAM, Full DALA (Database of African American and Predominantly White American Literature Anthologies) Corpus, Hurston, Author Page Count, as a percentage, zoom

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    Referenced in Chapter 4 of the book "Digital Literary Redlining: African American Anthologies, Digital Humanities, and the Canon.

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