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Learning In Infants Using Intrinsically Motivated Goal Conditioned Reinforcement Learning, T I Darsan

Master’s Dissertations

Traditional artificial intelligence models learn by passively digesting large datasets. In contrast, human infants discover skills by actively interacting with their bodies and environments without explicit external rewards. This thesis introduces the Composer Architecture, a machine learning framework designed to mimic this autonomous, open-ended development. The Composer architecture operates in a multi-stage loop, the latent model using Contrastive Learning Through Time (CLTT) to compress high-dimensional raw data from visual, proprioceptive, and touch sensors into a low-dimensional space. To preserve data relationships and prevent topological collapse, a Softmax activation forces these latent representations to lie smoothly on a probability simplex. A …

Wearable Technology For Depression Assessment: A Scoping Review Of Datasets, Ml Tlachac, Hayley K. Elsbree, Michael V. Heinz

Information Systems and Analytics Department Faculty Journal Articles

As wearable technology continues to develop, wearable devices are becoming more common and being increasingly used to collect datasets for depression assessment. Documenting the collection procedures, recruitment strategies, and demographics of these datasets is important to allow for synthesis across the datasets and uncover common limitations. As such, in this scoping review, we identify 80 observational datasets collected by wearable devices through the start of 2025 that can be used for depression assessment. Of the 80 datasets, 50% used an actigraph and 47.5% used other wristbands. These wearable devices were used to collect activity, sleep, and heart rate for 87.5%, …

Neutrophil Gelatinase-Associated Lipocalin (Ngal) And Urine Albumin-To-Creatinine Ratio (Uacr) In Patients With Chronic Kidney Disease: A Cross-Sectional Study, Nurul Annisa Yunus, Puspa Wardhani, Yessy Puspitasari, Satriyo Dwi Suryantoro, Zulfian Armah

Folia Medica Indonesiana

Chronic kidney disease (CKD) remains a major global health burden with an increasing prevalence and a substantial risk of progression to end-stage renal disease. Urine albumin-to-creatinine ratio (uACR) is widely used as a conventional biomarker reflecting glomerular injury in CKD, whereas neutrophil gelatinase-associated lipocalin (NGAL) has been proposed as a biomarker associated with tubular injury and inflammatory processes. This study aimed to determine the correlation between serum NGAL levels and uACR in patients with CKD. The authors conducted an analytical observational study with a cross-sectional design on 32 CKD patients at Universitas Airlangga Hospital. Serum NGAL levels were measured using …

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 …

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 …

Teachers' Lived Experiences Supporting Students' Executive Functioning Skills: A Phenomenology, Mary Clare Fallon Beamer

Doctoral Dissertations and Projects

The purpose of this hermeneutic phenomenological study was to understand the lived experiences of supporting students' executive functioning skills for experienced teachers at schools in Ohio. Cognitive load theory, acknowledging the relationship between executive functioning and cognition, was used to guide the study. Under this theory, human beings have a flexible yet finite ability to acquire knowledge, which is mediated through components of executive functioning, including working memory, inhibitory control, and self-regulation. Weaknesses in executive functioning may restrict cognitive load capacity through interference in the systems responsible for memory, attention, and behavior. Therefore, the following serves as the central research …

Demographic Congruence On The Therapeutic Relationship Among African American Therapists And Trauma Survivors, Patrice Ann Warren

Doctoral Dissertations and Projects

The purpose of this qualitative phenomenological study was to explore the lived experiences of African American therapists in forming therapeutic relationships with African American adult survivors of childhood sexual trauma. Although the therapeutic alliance is recognized as a critical component of trauma treatment, limited research has examined the role of demographic congruence in therapeutic relationships among African American trauma survivors. Guided by homophily theory, this study explored therapists’ perspectives regarding the influence of shared racial identity on trust, safety, cultural understanding, and therapeutic engagement. Data were collected through semi-structured interviews with 10 African American therapists who had experience treating African …

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) …

A Link Between Emotional Intelligence, Age, And Diverse Learners, Christina Jedlicka Blake

Doctoral Dissertations and Projects

This quantitative comparative study explored the complex relationship between emotional intelligence (EQ) and Learning Differences (LDs), focusing on academic, social, and emotional development of adolescents diagnosed with specific learning disabilities (SLDs), attention deficit hyperactivity disorder (ADHD), and high- functioning autism spectrum disorder (ASD). The study investigated whether differences in EQ exist between students with and without LDs and whether age influences EQ development. The 102 participants included male and female students in grades 6-12, ages 11-18, attending a Christ-centered college preparatory school. Students completed a 30-question EQ questionnaire during the researcher’s class time, and online surveys were coded to identify …

The Lived Experiences Of Individuals With Serious Mental Illness And Cumulative Trauma Seeking And Maintaining Employment While Receiving Holistic Trauma-Informed Care: A Qualitative Hermeneutic Phenomenological Study, Andrea Evon Mcdowell

Doctoral Dissertations and Projects

The purpose of this hermeneutic phenomenological study was to describe the lived experiences of individuals with serious mental illness (SMI) and cumulative trauma (CT) seeking and maintaining employment while receiving holistic trauma-informed care (TIC). Heidegger’s hermeneutic phenomenology, which evolved from Husserl’s method of phenomenology, served as the methodological framework for this study. The goal of hermeneutic phenomenology is to understand how individuals see themselves within their natural environments. Hermeneutic phenomenology was a valid design for this study because it allowed the participants to describe their SMI/CT and their lived experiences with holistic TIC. The participants in this study consisted of …

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 …

Evaluation Of A Sleep Health Composite: Changes In Sleep Over The Menarcheal Transition Among Girls, Julianna Adornetti

Master's Theses

Sleep undergoes a shift during puberty, increasing the risk for psychological and insomnia symptoms, particularly among girls. However, little research has examined how the onset of menarche may contribute to vulnerability in sleep and psychological functioning. The Sleep Health framework provides a standardized, multidimensional way to conceptualize sleep health (RU-SATED: satisfaction, alertness, timing, efficiency, duration, and regularity). Although prior studies have provided proof-of-concept for assessing sleep health using a composite score (SHc), its measurement properties have yet to be explored. The primary aims of this longitudinal study were to (1) evaluate the factor structure of a sleep health composite, (2) …

Oral Cancer Numerical Index (Ocni): Development And Validation Of A Cytology-Based Risk Assessment For Oral Lesions, Michael P Mcrae, Nadarajah Vigneswaran, Alexander Ross Kerr, Spencer W Redding, Martin H Thornhill, Craig Murdoch, Paul M Speight, Rachelle Wolk, Kritika S Rajsri, Pooja Gaikwad, Nancy Ruel, Nicolaos J Christodoulides, John T Mcdevitt

Faculty, Staff and Student Publications

Background/Objectives: Oral potentially malignant disorders (OPMDs) require accurate risk stratification to identify patients at the highest risk for severe oral epithelial dysplasia (OED) or oral squamous cell carcinoma (OSCC). We developed and internally validated the oral cancer numerical index (OCNI), a quantitative risk score derived from clinical features and deep learning-based brush cytology measurements.

Methods: This retrospective model development and internal validation study was conducted using data from the multicenter Grand Opportunity study. Prospectively recruited subjects with OPMD with complete data were divided at the subject level into a training set (n = 384) and a holdout test set …

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 Qualitative Study Of Gratitude Practice Among Won Buddhist Older Adults And Implications For Gerontological Social Work, Sungsim Lee

Dissertations

Although gratitude has been widely studied in social science, existing scholarship has largely relied on Western worldviews and quantitative research frameworks, limiting understanding of lived gratitude experiences within diverse spiritual and cultural contexts, including Eastern spiritual traditions. In Won Buddhism, originating in South Korea, gratitude holds a central place in spiritual life and is understood as an essential practice. This qualitative study explores the views of Won Buddhist older adult practitioners regarding their experiences, benefits, and challenges of engaging in spiritually grounded gratitude practice. Semi-structured interviews were conducted with 23 practitioners aged 65 and older from English-speaking Won Buddhist communities. …

Being Desi At School: Exploring The Racialized School Experiences Of South Asian American Youth, Prabha Kaundinya

Dissertations

Schools in America have been central areas for racialization, and as an immigrant, racial-ethnic minority population, South Asian American (SAA) students have been subjected to a variety of racialization processes (S. J. Lee et al., 2017; Rice, 2017, 2019; Subedi, 2013). However, what is known about SAA educational experiences is often based on celebratory stereotypes that proclaim their uniform success while neglecting attention towards the diversity of their needs (including academic, social-emotional, or mental health needs; Saran, 2015; Ngo & Lee, 2007; P. Patel & Patel, 2017; Pedraza & Guillaume, 2023; N. Sharma et al., 2020). This dissertation uses a …

Elucidating The Mechanisms Of Complex Flavoprotein Dehydrogenases, Tyler Alt

Dissertations

Flavins are ubiquitous redox active cofactors that can catalyze electron transfer between substrates. They offer the advantage of being able to stabilize a range of oxidation and protonation states, as well being amenable to covalent modification, which can further alter their activity. As such, the scope of reactions catalyzed by flavoproteins is broad and flavin has implications in a range of biological processes. The two predominant forms of flavin that serve as redox active cofactors are flavin adenine mononucleotide (FMN) and flavin adenine dinucleotide (FAD), which are functionally homologous. A major complication of studying flavoprotein dehydrogenases, and one that has …

Making Sense Of The Barrio: Place-Based Appraisal And Coping Among Latine Residents In Chicago, Juanita Vivas Bastidas

Dissertations

Residents of Chicago’s Latine barrios often describe their neighborhoods as places of familiarity and safety—sites defined by both personal independence and collective solidarity, where daily life is marked by a sense of belonging and mutual support. Yet, residents also contend daily with overlapping social and environmental stressors. While urban, medical, and environmental sociologists have each shown that place matters, their findings remain siloed and rarely integrated to illuminate the everyday realities of Latine neighborhoods. As a result, we lack a systematic analysis of how people living in Chicago’s Latine barrios make sense of and cope with multiple, simultaneous stressors. I …

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 …

Growing Through Systemic Adversity: Evaluation Of Developmental Trauma Assessment Among Black And/Or Latiné Adolescents With Adhd, Victoria Grant O'Daniel

Master's Theses

Black and Latiné youth are disproportionately impacted by targeted harm and trauma exposure, which is further exacerbated by stigma, biases, and punitive actions towards youth with attention deficit/hyperactive disorder (ADHD). This presents an urgent public health concern, as frequent exposure to trauma across development can lead to difficulties with behavior regulation, interpersonal relationships, impulse control, emotion regulation, and attention and cognition. Developmental trauma disorder (DTD) was proposed to capture the adverse developmental outcomes experienced by youth exposed to chronic trauma; however, there is a dearth of research on how to assess DTD. Thus, the current study aimed to establish support …

Pubertal Timing, Physical Activity, And Internalizing Symptoms In Adolescent Girls, Kirby Knapp

Master's Theses

Puberty brings marked changes in physical appearance, biological functioning, psychological well-being, and behavior, making it one of the most pivotal transitions in adolescence. Those who experience puberty earlier than their same-aged peers are at an elevated risk of psychological disorders and physical inactivity. Research shows that there are links between physical activity and psychological disorders, yet few have examined the directional relations between physical activity and internalizing symptoms or whether a certain amount of physical activity is necessary to prevent internalizing symptoms. Therefore, the current study examined (1) the directional relations between internalizing symptoms and physical activity, (2) the degree …

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 …

The Effects Of Exercise-Related Interventions On The Treatment Of Mental Health, Physical Wellness, And Quality Of Life: A Quantitative Study, Leah Elizabeth Starr

Doctoral Dissertations and Projects

This research study includes the overview, literature review, methodology, findings, and discussion of a six-week study pending defense. The purpose of the study is to further support Pilates as an evidence-based treatment to enhance physical and mental wellness and improve quality of life. This includes specific variables of interest such as anxiety, depression, dissociative and posttraumatic stress symptoms, stress, and improvements in overall quality of life and physical health. The theoretical framework for the study is somatic psychology and polyvagal theory. The importance of this study is to validate the use of Pilates as an effective form of treatment for …

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. …

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 …

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; …