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    Investigation on the influence of augmented reality adoption and cybersecurity in the Architecture, Engineering and Construction industry

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    Augmented Reality (AR) applications and the digitization of Architecture, Engineering, and Construction (AEC) industry processes, such as the online building permit process (BPP), have introduced new developments that simplifies tasks, and enhanced data accessibility for stakeholders. This created a digital landscape where sensitive information and critical processes are intertwined, making them vulnerable to cyber-attacks. Existing studies and frameworks on a) AR adoption doesn’t provide essential information (e.g., material availability and costs from different suppliers) and AR features to cater to the diverse needs of different stakeholders. b) threat modeling requires a domain and context specific need investigation, process exploration, critical asset mapping, and subsequent adoption. This thesis addresses these gaps to comprehensively understand the influence of a specific technology (AR applications on the home remodeling market in the current context) and investigate the critical need for robust cybersecurity measures in the context of online BPP. Adopting a multi-faceted approach, the study aims to a) conduct user market research and identify unique value propositions of AR-based applications b) assess potential threats and vulnerabilities of the online building permit process (BPP) followed by the building inspection division in the city of Jacksonville’s (COJ). To achieve these, a) questionnaire surveys were distributed to diverse stakeholders such as homeowners, contractors, realtors, and suppliers. b) focused interviews were conducted to determine the need for cybersecurity investigation and an existing threat modeling framework was applied to further analyze the online BPP process. Two of the major outcomes are a) almost all of the 15 surveyed participants raised concerns of final outcome visualization before completion and apprehension about their ability to execute the task correctly b) preliminary threat models that emphasize the who (are the potential malicious actors), why (would they intend to perform such actions), where (are the avenues of attacks), what (are the implications), and how (can these be avoided or countered) of the existing COJ’s BPP. The findings therefore directly contribute to the importance of innovative solutions that prioritize both technological advancements and data protection within the evolving AEC landscape

    Microbial communities in the Guana Tolomato Matanzas National Estuarine Research Reserve: An assessment of the responses of Spartina alterniflora Epiphytes to nitrogen enrichment, and a characterization of benthic cyanobacterial diversity

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    Elevated nitrogen and phosphorus inputs from anthropogenic sources, which can lead to significant increases in algal biomass and changes in algal community composition, poses a serious threat to estuarine ecosystems worldwide. While numerous studies have addressed the impacts of nutrient enrichment on epiphytic algae in seagrass habitats, few have investigated potential nutrient-driven changes to epiphytes on emergent salt marsh plants, such as Spartina alterniflora. Epiphytic microalgae on S. alterniflora play an important role in food availability in salt marsh ecosystems, and epiphytic nitrogen-fixing cyanobacteria also provide an important source of nitrogen for salt marsh consumers. The first study included in this work employed DNA metabarcoding to analyze the impacts of sediment nitrogen enrichment on epiphytic cyanobacteria, diatoms, and prokaryotes (bacteria and archaea) on S. alterniflora in the Guana Tolomato Matanzas National Estuarine Research Reserve (GTMNERR) in northeastern Florida (USA). Nitrogen enrichment resulted in significantly lower alpha diversity of epiphytic cyanobacteria, suggesting that anthropogenic nitrogen input may have consequences for these important diazotrophic communities. Analyses of epiphytic beta diversity also indicated that many taxa within these microbial communities may exhibit habitat specificity. The second study included in this work consisted of a culture-based characterization of benthic intertidal cyanobacteria isolated from GTMNERR. Cyanobacteria often dominate benthic algal assemblages in intertidal ecosystems. In these environments, cyanobacteria provide a number of important ecosystem services, including sediment stabilization. Relatively little effort has been made to characterize benthic cyanobacterial diversity in sub-tropical estuarine ecosystems, however. In this study, sixteen strains of benthic cyanobacteria from the GTMNERR were isolated and characterized using a polyphasic approach. Two novel species were formally described in this study. An additional six novel species, and two novel genera, were tentatively identified, indicating that intertidal habitats such as the one studied here represent an untapped wealth of novel cyanobacterial diversity

    Trial of African American Methodist Episcopal Church Bishop

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    Photograph: Scene from Trial of African Methodist Episcopal Church Bishop, charged with misappropriation of funds. Handwritten notes on reverse: Fla. [State] Jacksonville, Fla. Stamped Crawford Fotos. Undated.https://digitalcommons.unf.edu/eartha_images/1339/thumbnail.jp

    Reverend James Paige

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    Photograph: Rev. James Paige, first ordained Baptist Minister of Florida. (Picture sold for benefit of Old Folks Home.) Undated.https://digitalcommons.unf.edu/eartha_images/1334/thumbnail.jp

    Reverend R.A. Jackson and family

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    Photograph: Rev. R.A. Jackson and family, Abyssinia Baptist Church, Jacksonville, Florida.https://digitalcommons.unf.edu/eartha_images/1328/thumbnail.jp

    Church of God in Christ

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    Photograph: Street view of Church of God in Christ; located at the corner of Steel and Blue Streets, Jacksonville, Florida. Handwritten note on reverse: Church of God, Steel & Blue. Stamped: Crawford Fotos 3114 Stuart St- Elgin 3-9274, Jacksonville, Florida.https://digitalcommons.unf.edu/eartha_images/1326/thumbnail.jp

    Daniel Webster Perkins

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    Photograph: Portrait of Daniel Webster Perkins. Handwritten on reverse: Atty. D.W. Perkins. Undated.https://digitalcommons.unf.edu/eartha_images/1371/thumbnail.jp

    Daniel Webster Perkins

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    Photograph: Portrait of Daniel Webster Perkins. Handwritten on reverse: Yours always truly D.W Perkins Col. Masonic Temple, Jacksonville Florida. Undated.https://digitalcommons.unf.edu/eartha_images/1370/thumbnail.jp

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