Digital Commons Network^™

Ethically Implementing Ai To Maximize The Designer's Workflow, Victoria Lyons

Masters Theses

Artificial Intelligence (AI) is a rapidly advancing technology that has impacted nearly every industry. Graphic design is certainly no exception. AI has provided designers with a multitude of exciting opportunities and new methods to improve their work. At the same time, AI has also created some complex ethical challenges for designers to navigate. AI has the potential to greatly increase workflow efficiency, bring in automation to repetitive tasks, and provide new creative potential, but it also introduces concerns about creative and artistic integrity, intellectual property laws, and transparency with the consumer.

The focus of this thesis research will explore how …

To What Extent Do Different Types And Dosages Of Cannabinoids Have In Treating Anxiety Disorder, Lourdes Cristina Garcia Carrillo

Doctoral Dissertations and Projects

This mixed-methods study investigated the efficacy of various cannabinoid types and dosages in treating anxiety disorders among young adults (19–23), examining cannabis's role in regulating a deregulated endocannabinoid system. Fourteen participants tracked real-time anxiety symptoms, strain type, dosage, and affective states using the Releaf App. Quantitative analyses included repeated-measures ANOVA and Pearson correlation, complemented by quantitative content analysis of affect descriptors. Key findings revealed a statistically significant reduction in self-reported anxiety symptoms following cannabis use (p < .001, partial 2 = .97), supporting the hypothesis that cannabis can regulate a deregulated endocannabinoid system. No significant differences in anxiolytic effects were observed among Indica, Hybrid Indica/Sativa, and Hybrid Sativa/Indica strains. The optimal dosage for perceived anxiety relief appeared to be higher than initially hypothesized, with a moderate-to-strong association between dosage and anxiety relief (r = .662, p = .0099). Participants overwhelmingly reported positive affective states, such as "calm," "peaceful," and "relaxed," post-cannabis use, with no negative descriptors observed in the analyzed data. These results suggest that cannabis can serve as a short-term coping strategy for anxiety in young adults, leading to perceived emotional regulation.

Advances In Extraction And Detection Technologies For Veterinary Drug Residues In Food, Luo Qiaoqiao, Yuan Yufeng, Jia Yunzhu, Chen Qingya, Tan Fang, Zhao Xin

Food and Machinery

Veterinary drug residues constitute a global challenge that poses significant threats to food safety and public health. This review systematically summarizes recent advances in detection technologies for veterinary drug residues in food, with a particular focus on the performance characteristics and application status of sample extraction techniques (including liquid-liquid extraction, solid phase extraction, accelerated solvent extraction, QuEChERS, and magnetic solid phase microextraction ),as well as analytical methods (including chromatographic-mass spectrometric techniques, immunoassays, capillary electrophoresis, biosensors, and quantum dots -based approaches ). Comparative analysis reveals that accelerated solvent extraction (ASE ) and QuEChERS have emerged as mainstream pretreatment techniques owing to …

Characterization And Proteolytic Activity Of Arum Palaestinum Extract, Omar M. Atrooz, Saba Khaled

Baghdad Science Journal

Medicinal plants have been utilized to treat a wide range of diseases and have constituted a primary source of bioactive compounds for pharmaceutical development. Plant proteases are essential in regulating metabolic pathways that influence gene expression and remove unfavourable metabolites. The current study aims to evaluate the in vitro proteolytic and bioactivity of the methanolic leaf extract of Arum palaestinum. The plant extract's TPC, antioxidant, anti-inflammatory, and anti-hemolytic activities were determined using colorimetric methods, and the proteolytic activity was assessed using casein as a substrate. The investigations revealed that the extracts possess anti-inflammatory properties of 90–95%, with IC_{50 …}

Histopathological Evidence Of Irreversible Testicular Injury And Spermatogenesis Disruption In A Continuous Scrotal Hyperthermia- Induced Azoospermia Rat Model, Ageng Brahmadhi, Norina Agatri, Andi Muh. Maulana, Rahmadita Cahya Maharani, Dyanti Arisa Nurrizki

Folia Medica Indonesiana

Non-obstructive azoospermia (NOA) is a cause of male infertility characterized by impaired spermatogenesis. NOA remains a challenge for both research and treatment development. Reliable animal models are essential for better understanding its pathophysiology and evaluating therapeutic approaches. Scrotal hyperthermia induction is a cost-effective and technically feasible method for inducing NOA. However, the impact of different exposure patterns remains unsolved. In this study, a total of 30 adult male Rattus norvegicus were randomly assigned to control, discontinuous hyperthermia (every other day), and continuous hyperthermia (daily) groups. This study applied the heat exposure by immersing the scrotum in a 45°C water bath …

Surviving And Thriving: The Indigenous Migrant, Danna Guzman-Rodriguez

Honors Theses

This literature and cultural study highlights the generation of children of indigenous immigrants and the relationship with their indigenous identity and culture. This unique experience is complex and encapsulates issues such as indigenous cultural survival, homogeneity, globalization, and lack of cultural identity. Exploring the Totonac community in La Chaca, Veracruz in Mexico, allows for a deeper explanation of this experience. Speakers of Totonac and other indigenous languages often migrate to countries such as the United States and carry such cultural ties with them. What happens to these ties after moving to a Western-dominated country where globalization favors English and Western …

A Phenomenological Study On The Family Dynamics Of African American Heirs' Property Owners In The Southeastern U.S., Yolanda Nanette Robertson-Zellars

Doctoral Dissertations and Projects

The purpose of this phenomenological study is to explore the lived experiences of African American heirs’ property owners in the Southeastern United States. Bowen’s Family Systems Theory (BFST) and the Theory of Resilience and Relational Load (TRRL) are the lens through which these experiences are viewed. Each theory provides applicable concepts that guide the query with the participants as they share their interpretations of the phenomenon. Furthermore, the study seeks to understand the biopsychosocial aspects of the interpersonal relationships that family members confront when addressing issues of co-tenancy as owners of inherited land. This hermeneutic phenomenological study employed a hybrid …

Infertility In The Military: A Lived Experience, Princess Gibbs

Doctoral Dissertations and Projects

Infertility can have negative effects on women; military women deal with so much from the military that dealing with infertility is an area that is underdeveloped. This qualitative phenomenological study explored infertility among women serving on active duty, using Lazarus' transactional theory of stress and coping to understand how it affects them. This study was guided by three research questions: (a) What are the lived experiences of women living with infertility who served on active duty in the United States military, (b) How do women living with infertility describe their experience of stress and coping while serving in active duty …

Merleau-Ponty On The Crisis Of Natural Philosophy: A Critique Of The Metaphysical Foundations Of Natural Science And Investigations Into The Ontology Of Nature, Kevin Mager

Dissertations

In this dissertation, I show that Merleau-Ponty’s philosophy of nature is also a radical critique of the metaphysical foundations of natural science. This critique leads us to a new ontology for science, grounded in the lifeworld. I focus on how his philosophy offers a detailed critique of both physicalism and mechanism. For Merleau-Ponty, mechanism is not just the strict adherence to classical causality, but any view that asserts that classical causality has any role to play in reality at all. To replace mechanistic causality, Merleau-Ponty argues that we must conceive of nature as grounded in meaningful possibility. Merleau-Ponty's emphasis on …

“Being An Arab Is Like Fighting For Your Joy”: Exploring Bicultural Identity, Racialization, And Psychological Well-Being Among Us-Born Arab Americans, Hisham Nsier

Master's Theses

Bicultural identity development in Arab Americans, who must manage sometimes conflicting cultural expectations, is understudied. Even less is known about Arab Americans born in the United States (US-born AA), who are American by birth yet are alienated from society due to differences between their ‘white’ racialization and their cultural identities. The current study aimed to examine the relationship between bicultural identity, racialization, and psychological well-being at the intersection of US-born AA’s co-existing identities. Eight adult US-born AAs (Mage = 28 years, SD = 4) were recruited from professional Listservs and WhatsApp affinity groups. Qualitative semi-structured interviews were conducted and analyzed …

Counting Your Chickens Before They Hatch: Understanding Anticipatory Savoring And How And Why People Approach Or Avoid The Anticipation Of Future Positive Events, Asura Louise Osborne

Master's Theses

In this study, discretion between the styles used to anticipate positive events is the focus of a Confirmatory Factor Analysis (CFA) conducted on the Index of Anticipatory Styles (IAS). The IAS is a 45-item survey used to measure types of savoring in response to future positive events. This work expands the savoring literature to examine approach- and avoidant-type anticipatory savoring. Approach-type anticipatory savoring discriminates between Enjoyment, Coping, Control, Recalled Anticipation, and Downplaying. Avoidant-type savoring parses between Avoidance of anticipation because events may not occur, Avoidance of anticipation because events may fail to live up to expectations, Jinxing, and Counterproductivity. CFA …

Law Enforcement Training Academies' Effect On Agency Community Policing, Christopher Rhoades

Doctoral Dissertations and Projects

The purpose of this study was to determine if a relationship exists between Community Policing (CP) training in Law Enforcement Training Academies (LETAs) and CP implementation in Law Enforcement Agencies (LEAs) in the United States. This exploratory quantitative study used a correlation design to analyze secondary data from 2018 Census of Law Enforcement Training Academies and the 2020 Law Enforcement Management and Administrative Statistics survey obtained through the Inter-university Consortium for Political and Social Research. The analysis included data from 615 LETAs and 2,704 LEAs. CP training was operationalized using total required hours of community partnership building and problem‑solving approaches. …

The Missing Baby: Investigating The Effects On Psychological Distress, Marital Couple Quality, The Timing Of Bereavement Care And Grief Adaptation Among Fathers Following Perinatal Loss., Sharon L. Green

Doctoral Dissertations and Projects

Extensive research on maternal perinatal loss has been conducted for decades. In contrast, there is much less research on bereaved fathers following perinatal loss, specifically, studies that examine bereaved fathers’ psychological distress, time it takes for the health care provider to deliver bereavement care, and the impact it has on grief adjustment. The purpose of this study was to investigate bereaved fathers’ psychological distress, length of time to receive bereavement care, and marital couple quality and their impact on perinatal grief adaptation. The study design was quantitative, nonexperimental, descriptive, and correlational. Study participants were 200 bereaved fathers who were administered …

Flavonoid Profiling, Molecular Docking, And Modulatory Effects Of Artemisia Herba- Alba Leaf Extract On Ace2 And Tmprss2 Gene Expression, Zainab Tuama Al-Dallee, Kawther Tuma Khalaf, Ula M. Noor Al-Mousawi, Hiba Najeh Alsaad, Emad Yousif Awad Al-Sultan

Baghdad Science Journal

Several studies have reported the potential antiviral activity of Artemisia species, which is related mainly to their flavonoid constituents. Transmembrane serine protease 2 (TMPRSS2) and angiotensin-converting enzyme 2 (ACE2) are critical SARS-CoV-2 entry factors. In this study, the phytochemical composition and modulatory effects of Artemisia herba-alba leaf extract on the gene expression of ACE2 and TMPRSS2 were investigated. To identify the flavonoid profile, HPLC was used. Cytotoxicity was estimated in A549 carcinoma and HDFn fibroblasts using an MTT assay (IC₅₀ = 114.8 μg/mL). The real-time PCR results revealed significant upregulation of TMPRSS2 gene expression (2.4-fold, p ≤ 0.01; …

Indirect Spectrophotometric Determination Of Methyldopa Using Aunps-Cr(Vi), Anfal A. Mohammed, Zeena Z. Al Abdali

Baghdad Science Journal

A simple, sensitive, and rapid spectrophotometric method was suggested for the indirect determination of methyldopa. The method depends on the chemical reaction between citrate-stabilized gold nanoparticles and chromium (III) ions, which form during methyldopa oxidation through potassium dichromate. The process results in nanoparticle aggregation, while the solution transitions from red to blue-grey, and the plasmon band moves from 528 nm to 640 nm. The absorption rate increased linearly within the concentration range of 60-140 ng/ml, while the detection limit reached 27 ng/mL. The proposed method showed excellent accuracy and precision because the mean recovery value reached 100.16%, and the relative …

Selective Extraction Based On Molecular Imprinting Polymer For Determination Lorazepam In Pharmaceutical And Biological Samples, Eman W. Ammen, Yehya K. Al-Bayati

Baghdad Science Journal

A new and selective method was evaluated for the separation and quantification of lorazepam in pharmaceutical and biological samples utilizing a molecularly imprinted polymer (MIP) as a solid-phase extraction adsorbent material. The molecularly imprinted polymer (MIP) was synthesized via free-radical polymerization with lorazepam as a template and acrylamide as a functional monomer. The synthesized polymers were characterized using UV-visible spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. The adsorption isotherm and Kinetic studies were applied to characterize the adsorption of lorazepam by the synthesized polymers; additionally, the selectivity and reusability of the molecularly imprinted polymer were evaluated. …

Antibacterial And Structural Properties Of Chitosan-Gelatin Edible Films Enhanced With Liquid Smoke From Rice Husks And Cajuput Twigs, Muhammad Faisal, Dieni Mansur, Hera Desvita

Baghdad Science Journal

This study developed edible films incorporating liquid smoke derived from rice husks and cajuput twigs as both a chitosan solvent and an active antimicrobial–antioxidant agent. The fabricated films exhibited excellent mechanical integrity in accordance with Japanese Industrial Standards and possessed homogeneous microstructures, as evidenced by Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) analyses. Antibacterial tests demonstrated that higher concentrations of chitosan and liquid smoke enhanced inhibition against Escherichia coli and Bacillus subtilis, with inhibition zone diameters ranging from 6.08 mm to 11.68 mm for E.coli and 6.05 mm to 9.18 mm for B.subtilis. Antibacterial activity against Bacillus …

Synergistic Effects Of Integrated Organic And Mineral Fertilization On Soil Nutrient Dynamics And Cotton Productivity In Irrigated Meadow-Alluvial Soils Of Arid Uzbekistan, Djalilova Gulnora Tulkunovna, Rakhimov Khurmat Nurmatovich

Baghdad Science Journal

A field experiment was conducted in 2019–2021 in the Shavat district of the Khorezm region, Uzbekistan, to determine how mineral fertilizers combined with farmyard manure affect nutrient availability and cotton productivity in old-irrigated meadow-alluvial soils. Five fertilizer treatments were tested under furrow irrigation in a randomized complete block design with three replications. Soil nutrient status, nutrient accumulation in cotton organs, growth parameters, and seed cotton yield were evaluated. The treatment N₂₀₀P₁₅₀K₁₀₀ + 25 t ha^-1 manure gave the strongest agronomic response. In this treatment, the 0–30 cm soil layer contained higher nitrate nitrogen, available …

Novel Engineering Of Nickel Oxide And Chromium Oxide Nanocomposites For Anti-Corrosion Studies, Sahar Ismael Imran

Baghdad Science Journal

Mixed nickel oxide/chromium oxide nanocomposites NCs (NiO/Cr₂O₃ NCs) have been synthesized via two distinct routes, the first: a green direct calcination-microwave-assisted route (sample B1) of nickel and chromium salts in a crucible within an enclosed oven chamber, which provides an environmentally friendly approach free of gaseous and fluid waste. The second is a conventional co-precipitation-microwave-assisted technique (sample B2). Both methods produced a novel bio-inspired hierarchical micro-lobed architecture pattern. The corrosion resistance effects of both samples have been studied. NiO/Cr₂O₃ NCs were characterized using a field emission scanning electron microscope, X-ray diffractometer, EDX-ray spectroscope, and …

Investigation Of The Combined Effects Of Temperature And Nutrients On Chlorophyll-A Concentration In The Tigris River, Baghdad, Yaqeen Ameen, Jinan S. Al-Hassany

Baghdad Science Journal

Rivers are exposed to global warming and eutrophication, which in turn affect phytoplankton biomass in rivers. This study investigates the changes in Chl-a concentration, an indicator of phytoplankton biomass. A microcosm experiment was conducted, with water sampling from the Tigris River in Baghdad during the wet season. Temperature increase was based on raising the temperature by 3 °C higher than the ambient temperature, while nutrient enrichment was based on the mean values of soluble reactive NO_3^-1 and PO_4^-3 verified in the Tigris River. Variations in Chl-a concentration are associated with changes in WT and nutrient enrichment; …

Sexual Dimorphism, Reproductive Biology, And Growth Patterns Of Sumatran Combtail (Belontia Hasselti, Cuvier 1831) From The Kelekar River, South Sumatra, Indonesia, Muslim Muslim, Edo Saputra, Selly Oktarina, Muhammad Rizky Ariansyah Putra

Baghdad Science Journal

Sexual dimorphism, reproductive biology, and growth patterns are fundamental knowledge in fisheries studies. This study aimed to analyze the sexual dimorphism, reproductive biology, and growth patterns of Belontia hasselti. Samples were collected in the Kelekar River, South Sumatra, Indonesia. Traditional fishing gear, specifically fish traps (``bubu'' and ``pengilar''), was used to catch fish samples. The samples were transported to the Basic Fisheries Laboratory of the Universitas Sriwijaya for collecting study parameters. A total of 100 B. hasselti were used in this study: 56 males (TL: 8.00-13.24 cm, BW: 9.50-37.49 g) and 44 females (TL: 8.00-13.99 cm, BW: 9.00-38.99 g). …

Molecular Detection Of Neospora Caninum In The Placentas And Umbilical Cord Blood Of Women Who Experienced Abortions, Musafer Al-Ardi

Baghdad Science Journal

The relationship between Neosporosis infection in humans and its potential role in causing abortion remains uncertain. This is a molecular analytical cross-sectional study of Neospora caninum in the placentas and umbilical cord blood from aborted women. The results will be compared with molecular examinations of the placentas from several aborted livestock. 157 samples of placentas from aborted cows (58), sheep (51), and goats (48) were collected. In addition, 115 aborted fetal samples of cows (42), sheep (40) and a goat (33) were collected. Also, from aborted women, 45 samples were collected from the placentas and 45 samples of umbilical cord …

A Phenomenological Study Of Early Educator Experiences Regarding The Educational And Developmental Benefits Of Play-Based Learning For Children Identified With Special Needs In Inclusive Early Education Classrooms, Karen Renée Gallagher

Doctoral Dissertations and Projects

The purpose of this transcendental phenomenological study is to understand what are the lived experiences of early childhood educators with providing play-based learning experiences in inclusive classrooms. The theory guiding this study is Jean Piaget’s Cognitive Development theory. This phenomenological study focused on understanding the perceptions and experiences of early childhood educators in regard to how play-based learning supports school readiness within early care and education environments. The focus of the study included educators who care for and teach children between the ages of birth to five years old within inclusive, state licensed early childhood learning environments located in the …

Sam-1: An Assistive Robot For Remote Patient Monitoring, Aana Farhana Ahsan

USF Tampa Graduate Theses and Dissertations

The global aging population has increased the demand for caregiving, while the availability of caregivers has not grown at the same pace. These trends have contributed to disparities in consistent and accessible care for older adults and increased caregiver burden. Geriatric care robots have emerged as a promising solution to support older adults and reduce caregiver burden. Existing systems have been developed for a wide range of applications, including rehabilitation, social support, assistance with activities of daily living, therapy, and caregiver telepresence. This thesis presents the development of SAM-1, an assistive robot designed to support remote monitoring of older adults …

Detection, Persistence, And Rising Prevalence Of Oncogenic Viruses Revealed By Wastewater Metagenomics, Harihara Prakash, Ryan K Perez, Matt Ross, Michael Tisza, Sara J Javornik Cregeen, Jennifer Deegan, Joseph F Petrosino, Eric Boerwinkle, Justin R Clark, Anthony W Maresso

Faculty, Staff and Students Publications

Oncogenic viruses cause high-risk cancers in humans and are responsible for nearly 20% of all cancer cases worldwide. Currently, very limited data exist in the realm of wastewater-based viral epidemiology (WBE) for cancer-causing viruses, with existing studies using targeted approaches (i.e., PCR-based approaches) that lack genomic resolution. In this study, we used a hybrid-capture approach to detect, filter, and sequence all known oncogenic virus signals from wastewater samples collected over 3 years (May 2022-May 2025) in 16 Texas cities, covering nearly 25% of the state's population. Once sequenced, we used custom computational tools designed for wastewater metagenomics to assign reads …

Internships As A High-Impact Practice: A Phenomenological Study Of Hbcu Student Experiences With Soft Skills, Michelle Bennett Simmons

Doctoral Dissertations and Projects

The purpose of this transcendental phenomenological study was to describe soft skill development gains through high-impact practice internship experiences for Black students at an HBCU in the Mid-Atlantic United States. The theory presented informed and supported the focus of inquiry was Kolb’s experiential learning theory. This theory served as the theoretical framework for the study to answer the following central research question: What are the lived experiences of HBCU Alpha University students who participate in HIP internships? Participants included 10 Black students at Alpha University who completed an internship. The participants were selected using purposeful sampling. Data was collected through …

Lived Experiences Of Polysubstance Use And Co-Occurring Mental Health Disorders: A Phenomenological Inquiry, Candee Dione Rillon

Doctoral Dissertations and Projects

This phenomenological study explored the lived experiences of individuals with co-occurring substance use disorders (SUD) and mental health disorders (MHD), with particular attention to the transition into polysubstance use. The purpose of the study was to understand how individuals experience and make meaning of these co-occurring conditions and the factors influencing substance use patterns. Data were collected through semi-structured interviews with participants who reported both mental health challenges and substance use histories. Thematic analysis revealed that participants experienced SUD and MHD as deeply interconnected and mutually reinforcing, often functioning within a cyclical pattern of distress and temporary relief. Substance use …

The Meaning And Making Of Masculinity In Orthodox Jewry: A Transcendental Phenomenological Inquiry With Orthodox Rabbis, Elan A. Perchik

Doctoral Dissertations and Projects

The purpose of this transcendental phenomenological study is to describe the experiences of Los Angeles Jewish Orthodox rabbis in working with male congregants with respect to their masculine identity, development, roles and responsibilities. The textual framework guiding this study is the gamut of Jewish literature, spanning the Bible, the Prophets and Writings, the Mishnah, Talmud, Midrashic literature, and ancient, medieval and contemporary rabbinic commentaries, as understood through the worldview of the Orthodox Jewish community. Eight Orthodox rabbis in Los Angeles were interviewed toward the aim of discovering the essence of experience for participants. Across the data, four themes emerged: (a) …

The Relationship Between Estimated Vo2max And Poor Mental Health: A Study Of Brfss Data, Angelina Somadina Oputa

Doctoral Dissertations and Projects

Mental health conditions are one of the leading contributors to the global burden of disease. Despite advancements in mental health therapies and psychiatric medications, significant numbers of patients continue to struggle with mental illness. Despite these challenges, exercise can serve as a powerful tool to address mental health concerns. Current literature has referenced the value of physical fitness to support mental health, however there is limited large-scale research assessing the estimated maximal oxygen uptake (VO2Max) as a predictor of poor mental health days. In response, this quantitative secondary analysis was conducted to examine the relationship between estimated VO2Max and poor …

The Impact Of Modern Police Equipment And Training On Reported Anxiety And Depression Of Police Officers, Matthew Roy Burford

Doctoral Dissertations and Projects

This quantitative study investigated the relationships among law enforcement officers’ access to modern equipment, their confidence in their training, and their reported levels of anxiety and depression. The study also tested whether confidence in training moderated the association between equipment and mental health outcomes. Mental health symptoms were measured using the Beck Depression Inventory (Beck et al., 1961) and the Beck Anxiety Inventory (Beck et al., 1988). Two researchers-developed instruments to assess officers’ perceived adequacy of their equipment and confidence in their training. Participants were recruited from law enforcement agencies across the Dallas–Fort Worth metroplex, and data were collected through …