DRUM - Digital Repository at the University of Maryland

DRUM collects, preserves, and provides public access to the scholarly output of the university. Faculty and researchers can upload research products for rapid dissemination, global visibility and impact, and long-term preservation.

 
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Equitable Access Policy

Equitable Access Policy

The University of Maryland Equitable Access Policy provides equitable, open access to the University's research and scholarship. Faculty can learn more about what is covered by the policy and how to deposit on the policy website.
Theses and Dissertations

Theses and Dissertations

DRUM includes all UMD theses and dissertations from 2003 forward.

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Recent Submissions

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Maryland Biology Expectations Survey (MBEX) for characterizing student epistemology in biology courses
(2024) Hall, Kristi L.; Chatzikyriakidou, Kyriaki; Redish, Edward F.; Cooke, Todd J.
The Maryland Biology Expectations Survey (MBEX) is a pre-post survey instrument that was designed by Hall (2013) to evaluate the changes of student epistemology occurring in an introductory biology course (Cooke et al., 2023). The MBEX addresses four epistemic themes: principles vs. facts, independence vs. authority, interdisciplinary reasoning vs. siloed thinking, and connection (= relevance) vs. isolation (Hall, 2013). The major difference between MBEX-1 statements and MBEX-2 statements resides in the interdisciplinary reasoning cluster. MBEX-1 incorporates more chemistry-related statements, whereas MBEX-2 focuses almost exclusively on math and physics. It turns out that biology students showed very favorable attitudes toward chemistry in their pre-course MBEX-1 responses, which reduced the ability of that survey to reveal any post-course changes in student attitudes toward interdisciplinary reasoning. This website includes the following files: • MBEX-1 survey • MBEX-2 survey • Cluster assignments, polarization, and correspondence of MBEX-1 and MBEX-2 statements. For further information, email either Kyriaki Chatzikyriakidou (kchatzikyriak@gmail.com) or Todd Cooke (tjcooke@umd.edu). References Cooke, T. J., Jensen, J. S., Carleton, K. L., Hall, K. L., Jardine, H. E., Kent, B. W., Redish, E.F., and Shultz, J. W. (2023). Group active engagements for facilitating principles-based learning in introductory organismal biology. American Biology Teacher 85 (6): 317–326. https://doi.org/10.1525/abt.2023.85.6.317 Hall, K. L. (2013). Examining the effects of students’ classroom expectations on undergraduate biology course reform. Ph.D. Dissertation in Digital Resources at the University of Maryland. https://drum.lib.umd.edu/items/91d250d1-0890-4adc-a040-6b9c9b5eff40
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Vertical Column Densities of LNOx*
(2024) Seiler, Madilynn; Bucsela, Eric; Pickering, Kenneth
This dataset was created by Eric Bucsela and contains vertical column densities of LNOx before background contribution was removed (LNOx*). There are 6 values for these column amounts, one for each method used to retrieve vertical column densities. The method used in Seiler et al., (2025) is that of VLNOxhi_cld. There are files for three case studies: June 11th, 2012, August 5th, 2007, August 6th, 2006.
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Transitioning Facilities Records from the Plan Room to the Cloud
(2024-11) Groberg, Joanna; Williams, Vivica
Presentation from the MARAC virtual conference on November 13-15, 2024. S23 Transitioning Facilities Records from the Plan Room to the Cloud - a Case Study at Georgetown University
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One-Pot Ligation LAMP Assay to Detect miRNA-222: A Glioma Biomarker
(2024) Pallavajjala, Roshni; Adane, Yedidya; Fernandes, Catarina; Kaiser, Jillian; Patel, Khushi; Spirito, Catherine
Many cancer diagnostic methods are invasive, time-consuming, and expensive. Delayed cancer diagnosis can lower patient survival rates. PCR-based techniques that detect miRNA biomarkers in blood have been utilized as early screening tools for various cancers. As an alternative to PCR, we designed and optimized an isothermal amplification technique, Ligation Loop-Mediated Isothermal Amplification (Ligation LAMP) assay, to detect miR-222, an established biomarker that is found in elevated levels in the bloodstream of early-stage glioma patients. We designed colorimetric and fluorescent Ligation-LAMP assays and demonstrated their specificity and sensitivity in detecting miR-222. We are working on implementing our assay into a One-Pot system, using Thermally Responsive Alkane Partitions (TRAPs) and a strand displacement assay utilizing magnetic beads. We found that the Ligation LAMP assay is sensitive and specific to glioma biomarker miR-222 and different probe lengths for Strand Displacement did not have a significant impact on ligation. With these results, we can further improve the One-Pot assay to be more point-of-care.
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The Role and Perceptions of Artificial Intelligence in Business Analytics
(2024-12-09) Gupta, Sanya; Parekh, Mann; Kramarczuk, Kristina