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2026

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Sexual Dimorphism In The Immune Defense Mechanisms Against A Systemic Bacterial Infection In The Cat Flea (Ctenocephalides Felis), Ashley Lynch Jan 2026

Sexual Dimorphism In The Immune Defense Mechanisms Against A Systemic Bacterial Infection In The Cat Flea (Ctenocephalides Felis), Ashley Lynch

College of Graduate Studies: Theses & Dissertations

Fleas defend against infection through the activation of both humoral and cellular innate immune responses. Previous research in female cat fleas demonstrated increased immune activity following a systemic bacterial infection. However, comparable data for males and sex-based comparisons are limited. In this study, we investigated differences in innate cellular immune responses between male and female cat fleas following systemic infection with Gram-negative Escherichia coli. Bacterial load was quantified using colony-forming units 24 h post-infection. Immune function was assessed via phagocytic index and capacity. Survival and total circulating hemocyte counts were evaluated across infected, sterile-injected, and untreated groups. Male fleas …


Vibrio In Oysters: Exploring The Impact Of Harvesting Practices, Samin Yasar Jan 2026

Vibrio In Oysters: Exploring The Impact Of Harvesting Practices, Samin Yasar

College of Graduate Studies: Theses & Dissertations

The rapid growth of oyster aquaculture in the Southeastern United States necessitates the validation of post-harvest processing strategies to mitigate the risk of Vibrio spp. infection. This study investigated the efficiency of three cooling methods - Direct Ice Burial, Indirect Ice Cooling, and Ambient Control, on the prevalence and abundance of V. cholerae, V. parahaemolyticus, and V. vulnificus in cultured oysters (Crassostrea virginica) harvested in Georgia. Additionally, the study examined the safety of two different re-submersion periods for oyster safety.

Internal temperature profiles confirmed that while Direct Ice Burial achieved the most rapid cooling (< 10° C in 7.3 ± 1.2 min), the Indirect Ice Cooling protocol successfully reached the safety threshold in 73.7 ± 17.2 min, well within the 2-hour regulatory window. Microbiological analysis (N = 270) revealed that V. …


The Challenges Of International Travel Insurance For Leisure Travellers With Pre-Existing Mental Health Conditions, Alison Mcintosh, Gregory Willson, Dhananjana Madushani Morayes Gajaweera Marthinna Moraslage Jan 2026

The Challenges Of International Travel Insurance For Leisure Travellers With Pre-Existing Mental Health Conditions, Alison Mcintosh, Gregory Willson, Dhananjana Madushani Morayes Gajaweera Marthinna Moraslage

Research outputs 2022 to 2026

International leisure travel is deemed therapeutic for reducing stress and improving mental health and wellbeing, although unfamiliar environments can exacerbate pre-existing mental health conditions. Travel insurance plays a crucial role in mitigating risks for travellers. There is a lack of critical evaluation regarding how insurers assess risk, determine coverage eligibility and communicate exclusions. International travel insurance policies may contain restrictive clauses, ambiguous wording and outright exclusions that may disproportionately disadvantage travellers with pre-existing conditions, including mental health conditions. This paper evaluates whether New Zealand’s international travel insurance policies adequately accommodate travellers with pre-existing mental health conditions. Analysis of 23 international …


The Best Practice Guide For Early Childhood Education And Care Food Environment: Module 6: Quality, Leadership And Governance (Version 1.0), Ros Sambell, Audrey Elford, Connie N. Ihlein, Lochie Clark, Amanda Devine, Helen Alexiou, Peter D’Cress, Kasie Jackson, Karen Hunter, Stacey Mckenzie, Avalon O’Dowd, Asha Rojahn, Blake Stewart, Henry Tan Jan 2026

The Best Practice Guide For Early Childhood Education And Care Food Environment: Module 6: Quality, Leadership And Governance (Version 1.0), Ros Sambell, Audrey Elford, Connie N. Ihlein, Lochie Clark, Amanda Devine, Helen Alexiou, Peter D’Cress, Kasie Jackson, Karen Hunter, Stacey Mckenzie, Avalon O’Dowd, Asha Rojahn, Blake Stewart, Henry Tan

Research outputs 2022 to 2026

Quality, Leadership and Governance are central pillars in the role early learning settings play in children’s growth, development and wellbeing. By meeting regulatory requirements and quality standards through stringent business procedures and continuous improvement practices, services can provide high-quality food environments for all children – shaping their thoughts, feelings, and practices around food and eating.

This Quality, Leadership and Governance (QLG) module aims to:

- Provide critical context for how the Early Childhood Education and Care (ECEC) food environment is intertwined with National Law and Regulations.

- Support services to meet regulatory requirements, through specific resources and guidance.

- Provide …


Tour Guide Research Revisited: A Thematic Synthesis And Future Directions, Zhicheng Yu, Songshan (Sam) Huang, Jiqing Deng, Wenling Zhou, Zhiyong Li Jan 2026

Tour Guide Research Revisited: A Thematic Synthesis And Future Directions, Zhicheng Yu, Songshan (Sam) Huang, Jiqing Deng, Wenling Zhou, Zhiyong Li

Research outputs 2022 to 2026

Purpose: Existing knowledge on tour guiding is fragmented, which limits the understanding of this important profession. This paper aims to critically examine the progress of tour guide research, identify key theoretical tensions and propose future research directions based on a systematic synthesis of existing knowledge. Design/methodology/approach: A thematic analysis was conducted on 267 papers retrieved from the Web of Science Core Collection, Scopus and Google Scholar databases. Papers were systematically coded, categorized into themes and integrated into a framework that represents relationships among key themes in tour guide research. Findings: The analysis generated an integrated framework consisting of nine interrelated …


Characteristics And Outcomes Of Patients With Hematologic Malignancies Hospitalized With Respiratory Viral Infections, Zulfiqar A Lokhandwala, Brenna Park-Egan, Ravneet Waraich, Colleen A Mcevoy, Andrew P Michelson, Alice F Bewley, Lynne Strasfeld, Rachel Cook, Brandon Hayes-Lattin, Catherine L Hough, Patrick G Lyons Jan 2026

Characteristics And Outcomes Of Patients With Hematologic Malignancies Hospitalized With Respiratory Viral Infections, Zulfiqar A Lokhandwala, Brenna Park-Egan, Ravneet Waraich, Colleen A Mcevoy, Andrew P Michelson, Alice F Bewley, Lynne Strasfeld, Rachel Cook, Brandon Hayes-Lattin, Catherine L Hough, Patrick G Lyons

2020-Current year OA Pubs

BACKGROUND: Respiratory viral infections in patients with hematologic malignancies or hematopoietic stem cell transplants (HCTs) are associated with increased morbidity and mortality. However, the hospital presentations and courses of these infections remain under-described.

METHODS: We performed a multicenter retrospective cohort study of hospitalized patients with hematologic malignancy or HCT at 2 comprehensive cancer centers between January 2019 and June 2023. We included all patients with acute viral respiratory infection (identified based on a constellation of test results and objective physiology), comparing clinical presentations, care processes, and patient outcomes across pathogens; the primary outcome was the composite of hospital death or …


Driving Factors And Spatio-Temporal Evolution Of Tourist Accident Clusters In Chinese Outbound Tourism, Chaowu Xie, Kun Zhang, Jiangchi Zhang, Songshan Huang Jan 2026

Driving Factors And Spatio-Temporal Evolution Of Tourist Accident Clusters In Chinese Outbound Tourism, Chaowu Xie, Kun Zhang, Jiangchi Zhang, Songshan Huang

Research outputs 2022 to 2026

The clustering of tourist accidents is a critical yet underexplored area of research. This study employs cluster theory and safety system theory to develop a comprehensive measurement tool for analysing tourist accident clusters, examining their spatiotemporal evolution patterns, and identifying the driving mechanisms from a holistic destination perspective. By analysing accident records of Chinese outbound tourists across 48 countries from 2011 to 2019, the findings reveal a reduction in disparities among tourist accident clusters (α-convergence effect) and a fluctuating trend over time. Spatial autocorrelation analysis identifies four distinct spatial distribution patterns: low-low (L-L), high-low (H-L), high-high (H-H), and low-high (L-H). …


Optimising Vaginal Microbiome Profiling For Clinical Translation: A Comparative Assessment Of Sample Storage Methods And A Vagina-Specific 16s Rrna Gene Database, Alishum Ali, Jeffrey A. Keelan, Blagica Penova-Veselinovic, Morten E. Allentoft, Michael Bunce, Claus T. Christophersen Jan 2026

Optimising Vaginal Microbiome Profiling For Clinical Translation: A Comparative Assessment Of Sample Storage Methods And A Vagina-Specific 16s Rrna Gene Database, Alishum Ali, Jeffrey A. Keelan, Blagica Penova-Veselinovic, Morten E. Allentoft, Michael Bunce, Claus T. Christophersen

Research outputs 2022 to 2026

Vaginal microbiome composition has been linked to risk of preterm birth (PTB), a persistent global health challenge. 16S rRNA microbial profiling has identified specific vaginal community state types (CSTs) that have been associated with PTB risk. Diagnostic profiling requires standardised pre-analytical protocols. We evaluated two storage methods and validated a curated, vagina-specific 16S rRNA gene database (VagDB) to enhance annotation. Paired Copan FLOQ swabs from 22 women at high PTB risk were processed for either (a) dry/immediate freezing or (b) Amies-stabilisation/refrigeration. Amplicon sequence variants were generated via 16S rRNA gene (V4) PCR and Illumina sequencing. We assessed diversity, composition, and …


Evaluation Of Mycoplasma Genitalium Positivity And Co-Infection With Chlamydia Trachomatis And/Or Neisseria Gonorrhoeae At Various Care Sites Across The United States, Rebecca Lillis, Stacey House, Et Al. Jan 2026

Evaluation Of Mycoplasma Genitalium Positivity And Co-Infection With Chlamydia Trachomatis And/Or Neisseria Gonorrhoeae At Various Care Sites Across The United States, Rebecca Lillis, Stacey House, Et Al.

2020-Current year OA Pubs

OBJECTIVES: We evaluated Mycoplasma genitalium (MG) positivity and co-infection with Chlamydia trachomatis (CT) and/or Neisseria gonorrhoeae (NG), based on results from a trial assessing clinical performance of the Cobas® Liat CT/NG/MG point-of-care test.

METHODS: A prospective, US, multicenter, noninterventional study assessed MG positivity in prospective urine samples (male) and clinician-collected vaginal swabs (female) from symptomatic/asymptomatic patients aged ≥14 years attending various clinical settings. Participants were designated positive or negative for MG, CT, and NG based on combined results from three US Food and Drug Administration-approved assays and one laboratory-developed test. MG co-infection with CT and/or NG was assessed.

RESULTS: Among …


Reflecting On Themes From Telehealth Consultations Early In The Pandemic: An Opportunity To Learn From Multiprofessional Colleagues, Maggie Meeks, Laura R. Joyce, John Dean, Lorna Davies, Tika Ormond, Philippa Seaton, Dale Sheehan, Dean Sutherland, Melanie Welfare, Arindam Basu Jan 2026

Reflecting On Themes From Telehealth Consultations Early In The Pandemic: An Opportunity To Learn From Multiprofessional Colleagues, Maggie Meeks, Laura R. Joyce, John Dean, Lorna Davies, Tika Ormond, Philippa Seaton, Dale Sheehan, Dean Sutherland, Melanie Welfare, Arindam Basu

Research outputs 2022 to 2026

Aims: This study is aimed at documenting the reflections of New Zealand healthcare professionals on the use of synchronous telehealth consultations. Methods: A qualitative narrative inquiry was conducted to explore the practice of telehealth in New Zealand. Purposive sampling was used to identify clinicians from multiple professions who used telehealth during the initial phase of the COVID-19 pandemic. Fifteen semistructured interviews were conducted between October 2020 and May 2021 with clinicians from primary and secondary care, including multiple professional backgrounds. Interview transcripts were analysed thematically. Results: Six themes were identified: (1) equitable access: There were concerns regarding equitable access to …


Optimized Nano-Bilosomes Loaded Ocular Insert As A Promising Approach For Boosting Voriconazole Ocular Bioavailability: In-Vitro, Microbiological, And In-Vivo Assessments, Eman Gomaa Jan 2026

Optimized Nano-Bilosomes Loaded Ocular Insert As A Promising Approach For Boosting Voriconazole Ocular Bioavailability: In-Vitro, Microbiological, And In-Vivo Assessments, Eman Gomaa

Nanotechnology Research Centre

The eye possesses numerous physiological barriers that significantly limit the absorption of administered drugs, as only < 5 % get through. These barriers restrict drug bioavailability, often necessitating multiple dosing, which can lead to poor patient compliance. The study goal is to efficiently incorporate Voriconazole (VRC), a wide-spectrum antifungal candidate with a short half-life, into stable, biocompatible, non-irritating bile salt nanoparticles (Bilosomes, BLOs) to enhance its ocular delivery. Bilosomes were prepared by the ethanol injection method. Experimental (33) Box–Behnken Design (BBD) was employed; the amount of bile salt, cholesterol, and span-60 were chosen as independent variables, while entrapment efficiency (EE%), cumulative VRC release (Q8h), particle size (PS), zeta potential (ZP), and polydispersity index (PDI) were the dependent variables. The formula of optimization showed EE% (59.04 ± 1.88 %), cumulative release after 8 h (81.35 ± 0.69 %), PS (222.53 ± 2.04 nm), ZP (−72.53 ± 1.75 mV), and PDI (0.225 ± 0.03). It was chemically characterized using DSC and FTIR. Its spherical arrangement was confirmed using TEM. For ophthalmic application, the optimized formula was included in ocular inserts to extend ocular residence time while minimizing dosing frequency. The optimal VRC-loaded bilosomal ocular insert met the acceptable physicochemical criteria, was sterilized using UV radiation for conducting microbiological assay, in-vivo study, and pharmacokinetic analysis. For safety evaluation, an eye irritation study and histopathological examination were conducted. The results confirmed its effectiveness as evidenced by a significantly larger inhibition zone and 8.39-fold enhancement in VRC bioavailability compared to its suspension. These findings support the potential of bilosomes-loaded ocular insert as an effective ocular delivery of VRC.