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Featured submissions

October 2021

  • Do you have data or code associated with published articles and/or completed grants and research projects? Visit the UA Research Data Repository (ReDATA) to learn how UA affiliates can use ReDATA to comply with funder mandates as well as UA data retention policies. Just like the UA Campus Repository, ReDATA is designed for materials intended for public availability.
  • Applications are being accepted for the UAL Data Grant Program until December 1, 2021. UA faculty members, graduate students, post-doctoral research associates and staff are eligible to apply.

September 2021

  • The Ludwig W. Adamec and M. Mobin Shorish collections are now publicly available in the UA Campus Repository. The University of Arizona Libraries also provides public access to the Kabul Times (1962-1980) and Anis (1946-1984) newspapers. These historical collections include unique collection of documents related to Afghanistan history, culture, and its development during the Jihad period and more.

August 2021

  • Master's reports from Summer 2021 graduates are now available in the MS-GIST Master's Reports collection.
  • Explore graduate student research in the UA Theses and Dissertations collections. More than 38,000 master's theses and dissertations are publicly available, with new titles added every month.

See more featured submissions

  • UAL ODI Conformance Checklist 2021

    Hazen, Teresa; University of Arizona Libraries (The University of Arizona Libraries (Tucson, AZ), 2021-07-01)
  • On the Analysis of Adaptive-Rate Applications in Data-Centric Wireless Ad-Hoc Networks

    Rahman, Md Ashiqur; Zhang, Beichuan; University of Arizona (IEEE, 2021-10-04)
    Adapting applications' data rates in multi-hop wireless ad-hoc networks is inherently challenging. Packet collision, channel contention, and queue buildup contribute to packet loss but are difficult to manage in conventional TCP/IP architecture. This work explores a data-centric approach based on Name Data Networking (NDN) architecture, which is considered more suitable for wireless ad-hoc networks. We show that the default NDN transport offers better performance in linear topologies but struggles in more extensive networks due to high collision and contention caused by excessive Interests from out-of-order data retrieval and redundant data transmission from improper Interest lifetime setting as well as in-network caching. To fix these, we use round-trip hop count to limit Interest rate and Dynamic Interest Lifetime to minimize the negative effect of improper Interest lifetime. Finally, we analyze the effect of in-network caching on transport performance and which scenarios may benefit or suffer from it.
  • Large Trichobezoar in School-Aged Girl Presenting to the Emergency Department with Hematemesis

    LaGrandeur, Weston; Zukowski, Melissa; University of Arizona College of Medicine, South Campus Family Medicine Residency; Department of Emergency Medicine, University of Arizona; Banner University Medical Center, University of Arizona (Elsevier BV, 2021-09)
  • Dry annealing of radiation-damaged zircon: Single-crystal X-ray and Raman spectroscopy study

    Ende, Martin; Chanmuang N., Chutimun; Reiners, Peter W.; Zamyatin, Dmitry A.; Gain, Sarah E.M.; Wirth, Richard; Nasdala, Lutz; Department of Geosciences, University of Arizona (Elsevier BV, 2021-12)
    Structural reconstitution upon dry thermal annealing of mildly to strongly radiation-damaged, gem-quality zircon from Sri Lanka has been studied by single-crystal X-ray diffraction and Raman spectroscopy. Results of structure refinement of a strongly radiation-damaged zircon (sample GZ5, calculated alpha dose ~4 × 1018 g−1) indicate the existence of an interstitial oxygen site that is sparsely occupied (about 4% of all O atoms). Annealing of this sample at Ta (annealing temperature) = 700 °C has resulted in nearly complete recrystallization of its amorphous volume fraction and significant decrease in the occupation of O-interstitial sites. For all samples studied, annealing up to Ta ≤ 650–700 °C is characterised by preferred recovery of Raman shifts (compared to Raman FWHMs; full width at half band maximum) and extensive contraction of the unit-cell volume, in particular along unit-cell dimension a. This low-T annealing is dominated by epitaxial growth of the crystalline volume fraction at the expense of the amorphous volume fraction, and general recovery of low-energy defects. During annealing at Ta = 700–1400 °C there is preferred recovery of Raman FWHMs (compared to Raman shifts) and only mild unit-cell contraction. High-T annealing is dominated by the recovery of high-energy defects such as recombination of cation Frenkel pairs. Here, unit-cell parameter a shows a remarkable behaviour (namely, mild re-increase at Ta = 700–1150 °C and mild final shrinking at Ta = 1000–1400 °C), which is attributed to enhanced contortion of ZrO8 polyhedrons due to cation repulsion. The combined data set of Raman band and unit-cell parameter presented herein will help analysts to assign Raman spectra of annealed unknowns to certain recovery stages.
  • Graphic Novela: Mexican American Families’ Use of Community Services for Older Adults

    Martin-Plank, Lori; Davis, Mary P.; Williams, Deborah K.; May, Jennifer T.; Ortiz-Dowling, Evangeline M.; Núñez, Annabelle; Reyes, Zuryanette; Heasley, Beverly J.; Crist, Janice D.; University of Arizona; et al. (SAGE Publications, 2021-10-31)
    Knowledge gaps exist about how to help Mexican American (MA) families seek assistance when their capacity to assist older family members is challenged. MA families may resist confronting unpleasant but real situations with the older adult, for example, the need to access long term support services (LTSS), because of cultural and structural barriers. The purpose was to describe stakeholders’ reactions to a culturally focused graphic novela created in partnership with a community advisory council. Qualitative description with content analysis of a focus group’s reactions to the graphic novela was used. Results included positive reactions as well as suggestions for improvement and dissemination. Graphic novelas can be an effective medium for modeling conversations about older adults’ needing additional care, and demonstrating how to identify and access available LTSS or other services. Included is a description of the researchers’ process of partnering with diverse stakeholders, which is essential for creating new solutions.

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