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Histopathological Features Of Gastrointestinal And Pancreatic Neuroendocrine Neoplasms: An 11-Year Retrospective Study From A Tertiary Center In Saudi Arabia, Rana Y. Bokhary

Saudi Medical Journal

ABSTRACT Objectives: To evaluate the clinicopathological features of gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) over 11 years at a single tertiary institution in Saudi Arabia. Methods: In a retrospective review, data from 71 patients diagnosed with GEP-NEN, at a tertiary academic center in Jeddah, Saudi Arabia, between January 2014 to December 2024, were analyzed for demographics, clinical presentation, tumor location, size, pathology, grade, and immunohistochemistry. The statistical analyses included Chi-square, Mann-Whitney-U, and Spearman’s correlation tests. Results: The cohort had a mean age of 54.9±15.1 years and comprised 62% males. Most tumors originated in the foregut (62.0%) and were unifocal (83.1%). Abdominal pain …

Hunter-Gatherer Subsistence Strategies In Changing Environments In Prehistoric Mindoro, Philippines, Alfred Ferdinand F. Pawlik

Sociology & Anthropology Department Faculty Publications

As an archipelago straddling two distinct biogeographic zones, Sunda and Wallacea, the Philippines have acted as a conduit for the movements of people, material culture and ideas across Southeast Asia throughout prehistory. The Mindoro Archaeology Project investigates several caves and rockshelters from the late Pleistocene and early Holocene, located in Sta. Teresa and Ilin Island in Occidental Mindoro on the southern end of Mindoro and explores the deep history of the first anatomically modern humans in the Philippines, the timeline of their arrival and dispersal, and their adaptation to coastal and island environments. By at least 40,000 years ago, anatomically …

Identification Of Milk And Milk Product Adulteration By Molecular Methods, Isam Shaker Haza, Saad Sabah Fakhry

Al-Esraa University College Journal for Medical Sciences

The polyacrylamide gel electrophoresis sodium dodecylsulfate (SDS-PAGE) has been extensively used to separate native and denaturalized proteins. In various countries this has been useful to detect milk adulteration with whey, which is a fraud according to the current legal standards. The presence of glycomacropeptide (GMP) constitutes a marker of adulteration. It is released to the serum due to the hydrolysis of --casein peptide catalyzed by rennin incheese elaboration. In this work, the GMP detection was standardized as a pasteurized milk adulteration index, by means of GMP isolation with sequential precipitation in trichloroacetic acid at 24% and 50%, treatment with ethanol-ether …

Impact Of Hypocalcemia On Dickkopf-Related Protein 1 And Hmgb1 In Transfusion-Dependent Thalassemia Patients, Haneen Azeez Falih

Al-Esraa University College Journal for Medical Sciences

Background: Transfusion-dependent thalassemia (TDT) is associated with various symptoms including anaemia and bone problems. There is a need for more biomarkers of calcium disorders in TDT patients. In the present study, DKK 1 and HMGB1 are studied in TDT patients with hypocalcemia (TDT+Hypocalcemia) and normocalcemia (TDT+Normocalcemia) as a function of inflammation. Methods: TDT patients were classified according to the cut-off value (2.12 mM) of the adjusted serum calcium (Adj.T.Ca) into TDT+Normocalcemia (n = 54) and TDT+Hypocalcemia (n = 41) groups. Forty healthy controls have participated in the present study. DKK1 and HMGB1 were measured using the ELISA technique. Results: Both …

Cytidine Triphosphate Specifically Modulates Parb-Mediated Dna Compaction: Insights From Single-Molecule Analysis And Parb C-Terminal Lysine Mutagenesis, Lois Akosua Serwaa

Theses and Dissertations

ParB is a central player in bacterial chromosome segregation, and cytidine triphosphate (CTP) is known to modulate its DNA compaction activity. This study explored whether CTP’s regulatory effect is due to specific molecular interactions beyond its known CTP-binding pocket. Using single-molecule flow-stretching and TIRF microscopy, we showed that CTP significantly reduces DNA compaction by wild-type Bacillus subtilis ParB, while ATP has no effect, supporting the hypothesis that CTP acts through specific recognition rather than general charge. CTP’s modulatory effect persisted across C-terminal domain (CTD) lysine mutants. Compaction was reduced in wild-type and K255A but abolished in K252A and K259A. The …

Electrocatalytic Degradation Of Methylene Blue Using Graphene Oxide, Antimony Oxide, And Graphene Oxide-Supported Antimony Oxide Ink-Based Electrodes, Maria Irene Myers Armas

Theses and Dissertations

This study investigates the electrocatalytic degradation of methylene blue (MB) using copper mesh electrodes coated with graphene oxide (GO), antimony oxide (Sb₂O₃), and their composite (GO/Sb₂O₃). These materials were evaluated across a pH range of 2 to 8 using sodium sulfate as the supporting electrolyte. UV-Vis spectroscopy at 665 nm confirmed dye degradation, with removal efficiencies reaching up to 95% at pH 2. However, degradation decreased at higher pH, with 40 – 60% removal at pH 8, depending on the electrode. Kinetic analyses revealed optimum performance under acidic conditions. GO/Sb₂O₃ electrodes demonstrated the most consistent and effective performance across all …

Investigating The Threshold Of Opa1-Mediated Mitochondrial Fusion In Shsy5y Cells, Jorge Alberto Elizondo

Theses and Dissertations

Mitochondrial dynamics occurring under stress-induced conditions in SHSY5Y neuroblastoma cells provide insight into the OPA1-mediated mitochondrial fusion threshold in cells of varying energetic demands. Mitochondria are dynamic structures that are continuously balancing fusion and fission, depending on cellular needs. The ability to fuse and divide relies on the maintenance of the mitochondrial transmembrane potential. Stress-induced conditions in SHSY5Y cells were induced via utilization of carbonyl cyanide m-chlorophenylhydrazone (CCCP), a protonophore that disrupts the transmembrane potential. OMA1 protein reacts to the loss of transmembrane potential and subsequently cleaves the fusion-active isoforms of OPA1, L-OPA1. This causes an accumulation of S-OPA1, the …

Foxo Factors’ Ability In Binding To And Inducing Tcf7 In Glioblastoma Cells, Stephanie Oyervides

Theses and Dissertations

Glioblastoma Multiforme (GBM) is an aggressive astrocytoma tumor type with a poor prognosis and limited immunotherapeutic options for those inflicted. Stem gene expression of this cancer indicates a direct relationship with the transcription factors, Forkhead box subfamily O (FOXO-1, -3 and - 4). These transcription factors are evolutionarily conserved, partially redundant. They are involved in diverse and fundamental biological processes such as cell survival, stem cell homeostasis, cell fate determination, cell cycle maintenance, metabolism, and apoptosis. Increasing evidence suggests interconnectivity between the WNT Pathway and FOXO transcription factors; however, the mechanism and full extent to which these interactions play a …

Predicting Enzyme-Substrate Association Using Heterogeneous Knowledge Graph, Jannatul Ferdaus

Theses and Dissertations

Phosphorylation and dephosphorylation are dynamic processes that control many aspects of cellular activity, such as metabolic pathways, cell cycle progression, and signal transduction. Protein activity and interactions are modulated by the reversible addition or removal of phosphate groups, which allows cells to react abruptly to evolving conditions. Although kinase-specific phosphorylation site prediction has advanced, phosphatase-specific dephosphorylation site computational prediction is still a major obstacle that prevents us from fully comprehending the extent of cellular regulation. In this study, we constructed a knowledge graph for the prediction of enzymes (kinases and phosphatases) and their associated substrates with specific phosphosites. As part …

Contributions Of Citizen Science Data To Butterflies Of The Lower Rio Grande Valley, Akane Jazmyn Benitez

Theses and Dissertations

Citizen science-provided insect data inherently exhibits variability in accuracy. In the Lower Rio Grande Valley (LRGV), butterfly occurrence reporting is predominantly reliant on citizen science contributions. My research compared fieldwork conducted monthly over a year to occurrence records submitted by visitors at the National Butterfly Center and in Mission, Hidalgo County, Texas. I hypothesized that butterfly occurrences at the Center would be maximized during the fall and minimized during winter and summer months. My research findings revealed that butterfly taxa richness is contingent upon the following factors: 1) the impact of citizen science submitting reports, and 2) monthly butterfly activity …

Oxytocin As A Possible Vegf Inhibitor For Treatment Of Diabetic Retinopathy, Daira Yepez

Theses and Dissertations

Diabetic retinopathy (DR) is a major complication of diabetes and a leading cause of vision loss largely driven by the overexpression of vascular endothelial growth factor (VEGF), which promotes neovascularization and vascular permeability in the retina. Current treatments, primarily anti-VEGF injections, inhibit the effects of VEGF once it has been secreted but can be ineffective in a certain subset of patients. Recent studies suggest that oxytocin (OXT), a neuropeptide mainly known for its roles in reproduction and social bonding, may downregulate VEGF expression. This study aimed to investigate whether OXT influences VEGF secretion in the human retinal pigment epithelial (RPE) …

Returning To Nature: A Virtue-Based Approach To Urban Sustainability, Liam A. L. Cormack

Cities and the Environment (CATE)

This paper advocates for a pragmatic and virtue-ethics-based approach to urban sustainability initiatives that prioritizes the consideration of moral responsibility. Looking at literature on rewilding, this paper argues that the principle of ecophronesis, and the larger discipline of ecopracticology, offers a compelling framework for integrating diverse opinions on the future of conservation from different disciplines and ecological stakeholders. Ultimately, an ecophronetic approach to urban sustainability initiatives facilitates a sense of conceptual rewilding that disregards the nature-culture dualism paradigm limiting Western environmental thought and may help address the perceived alienation from nature characterized by nature-deficit disorder.

Profile Of Trna-Derived Short Non-Coding Rnas During Monocyte Differentiation And Their Role In Macrophage Survival, Anahita Jayaram, Sanjeev Galande, Soroush Sharbati, Deepak A. Deshpande, Phd, Kamlesh Pawar

Center for Translational Medicine Faculty Papers

Monocytes, a type of leukocytes, are key players in immune responses, transitioning to macrophages at infection sites. Differentiation, which is crucial for macrophage survival and resistance to apoptosis, is a tightly regulated process. Based on our earlier findings implicating the 5'-fragment of tRNAHisGUG (5'-HisGUG) in macrophage biology, we specifically focused on these fragments to investigate its regulation during monocyte-to-macrophage differentiation and its role in macrophage survival. We performed small RNA sequencing during monocyte-to-macrophage differentiation using THP-1 cells and identified 5'-HisGUG as a prominently regulated tDR. Notably, transfection of 5'-HisGUG in macrophages decreased survival under apoptotic stress. We propose that 5'-HisGUG …

Individualized Functional And Structural Language Lateralities In Temporal Lobe Epilepsy And Their Impact On Memory, Ankeeta Ankeeta, Qirui Zhang, Sam Sharifzadeh Javidi, Shilpi Modi, Michael R. Sperling, Joseph I. Tracy

Department of Neurology Faculty Papers

The basis and impact of functional asymmetries in the brain, particularly language lateralization, are not fully understood, and the relationship between functional and structural asymmetries remains largely untested. This study investigated the degree to which asymmetries in hemispheric language laterality are concordant with asymmetries in gray matter (GM) structure and whether the hemispheric organization of memory is influenced by functional language asymmetries. Structural and functional MR data was acquired from 261 individuals, including those with unilateral temporal lobe epilepsy (LTLE = 96, RTLE = 69) and matched with healthy participants (HPs = 96). Functional language laterality indices (LIs) were calculated …

Childhood Asthma Biomarkers Derived From Plasma And Saliva Exosomal Mirnas, Abdelnaby Khalyfa, Mohit Verma, Meghan M. Alexander, Zhuanhong Qiao, Tammy Rood, Ragini Kapoor, Trupti Joshi, David Gozal, Benjamin D. Francisco

Biomedical Sciences

Asthma, the most common chronic respiratory condition in children, involves airway inflammation, hyper-responsiveness, and frequent exacerbation that worsen the airflow and inflammation. Exosomes, extracellular vesicles carrying microRNAs (miRNAs), play a key role in cell communication alongside other types of communication and are promising markers of asthma severity. This study compares exosomal miRNA and long non-coding RNA (lncRNA) profiles in boys with asthma, focusing on differences between those with normal lung functions and those with severe airflow obstruction. This study enrolled 20 boys aged 9–18 years with asthma, split into two groups based on their lung function. Ten had normal lung …

The Impact Of Utilizing Injectable Platelet-Rich Fibrin And Collagen Plugs For Maintaining The Tooth Extraction Socket: A Review Study, Esraa Hameed Hassan, Ali H. Abbas Alhussaini

Al-Esraa University College Journal for Medical Sciences

Tooth extraction initiates a cascade of biological changes that result in alveolar bone resorption, compromising both the esthetic and functional outcomes of future dental rehabilitations, particularly implant placement. Socket preservation strategies have emerged as crucial interventions aimed at minimizing post-extraction ridge collapse. This review explores the synergistic effects of injectable platelet-rich fibrin (I-PRF) and collagen plugs in enhancing socket preservation outcomes. Collagen plugs serve as biocompatible scaffolds, promoting hemostasis, cellular migration, and angiogenesis, while supporting soft tissue healing and bone regeneration. Concurrently, I-PRF-an autologous, growth factor-rich biomaterial-provides a dynamic reservoir of platelets, leukocytes, and key cytokines such as Platelet-Derived Growth …

Impact Of Insulin Resistance In Pcos (Lh/Fsh) In A Group Of Woman In Baghdad City, Roua Shehab-Aldeen Ahmed, Fatima Amer Abd Aljabar, Nadia Mohammed Mahdi Al-Shakir

Al-Esraa University College Journal for Medical Sciences

Background: Polycystic ovarian syndrome is an endocrinological disorder influencing ladies, and it is the foremost common cause of menstrual unsettling influence amid the regenerative age. Polycystic ovary disorder (PCOS) is in fact a chronic form of anovulation that is usually observed besides a large spectrum of clinical symptoms and signs. Objectives: The study's main goal is to evaluate the hormonal indicators of ``PCOS'' and insulin resistance and determine how insulin resistance affects these hormones. Materials and methods: This study included 130 women, aged 19--38, who were separated into three bunches: 40 women with ``PCOs'' who were treated with metformin and …

Exploring The Role Of Hepcidin And Some Biochemical Indicators In Β-Thalassemia Major Patients With Negative And Positive Entamoeba Histolytica, Jafar Jamal Abdullah, Mohammed Mezher Hussain, Abdul Rasool Kh. Saeed

Al-Esraa University College Journal for Medical Sciences

Thalassemia syndromes encompass a wide range of hemoglobin disorders characterized by either the absence or diminished production of normal globin chains. Hepcidin, a peptide produced by the liver with antimicrobial properties, is mainly synthesized by hepatocytes situated near the portal veins, which are responsible for transporting dietary iron, as well as by Kupffer cells. Before blood transfusions, increased erythropoietic activity leads to a reduction in hepcidin, resulting in lower hepcidin levels that enhance the absorption of dietary iron. Parasite protozoa depend on iron for their survival, as it plays a crucial role in the growth and enzymatic functions of E. …

Full Issue

Digressions: Literary & Art Journal

No abstract provided.

Crochet Fairy Batman, Sammantha Lopez-Guarin

Digressions: Literary & Art Journal

Artist Statement

"The dark knight, the man, the legend, Batman only with a little bit of flare and a lot of style! Coming at you in all shades of pink and a tutu, he's here to help you."

The Artists Is A Sadist, Brianna Calderon

Digressions: Literary & Art Journal

Artist Statement

"'The Artist Is A Sadist' explores the intersection of artistic creation, suffering, and control. As someone balancing a rigorous science curriculum, research demands, and external expectations, I grew frustrated when art was dismissed as a ‘break’ or an ‘easier’ pursuit. Cause in reality, creativity is difficult—creation is painful, even cruel, but it’s a necessary cruelty. This piece depicts a girl stabbing herself in the abdomen like a martyr while maintaining composure, ready for an audience that underestimates the discipline and depth of art. Through this work, I wanted to confront the uncomfortable truth of being a student torn …

Shsp Dean's Newsletter, Summer 2025, Robert W. Amler

SHSP Dean’s Newsletter

No abstract provided.

Autoregressive Modeling Of Dna Molecule Shapes Accompanied By An Empirical Assessment Of The Ljung-Box Test, David William Custer

Theses and Dissertations

The assumption of independence rarely holds in real-world data. Correlated observations are ubiquitous, especially in sequential contexts where time series models are essential for capturing temporal dependence. This study analyzed six groups of damaged and undamaged DNA sequences, where an "F" in the middle of a sequence indicates damage. One biological aim is to understand how DNA regenerates with the assistance of proteins that recognize damaged regions. Motivated by empirical support for AR(2) modeling, we fit autoregressive models to the first three principal component scores of each DNA group, capturing the dominant structure in the data. We conducted model diagnostics, …

Queer Inclusion In Libba Bray's Beauty Queens: The Case For Lgbtq Ya Literature, Kayla Michelle Crumbley

Theses and Dissertations

This thesis is a time sensitive case study on the nature of Libba Bray's novel Beauty Queensand it's placement as both a metacognitive novel and discourse in the nature of queer acceptance in the publishing and media landscape of the 2010s and 2020s. This includes focusing on contextualizing the book in the changing landscape of queer acceptance and visibility in the media over the last 20 years through the lens of the inclusion in YA and how that manifest in the 2010 and 2020s book bans on LGBTQ YA fiction. The novel highlights the wider need for LGBTQ YA …

First Detrital Zircon Provenance Data From Oligocene-Pleistocene Sediment In The Beaufort-Mackenzie Basin, Arctic Ocean, Joseph Martina

Theses and Dissertations

Sediment, runoff, and nutrient input to the Arctic Ocean plays a critical role in both physical and biological processes that impact regional and global systems. The Beaufort-Mackenzie Basin, situated in the Arctic Ocean offshore northwestern Canada, contains more than 14 km of clastic strata and provides a record of erosion and sediment transport from the Cretaceous to present. Pliocene sedimentation rates within the basin jump nearly 2000% relative to underlying units, but the cause of this shift remains unknown. We used cuttings from the N. Issungnak L-86 well, focusing on the Oligocene-lower Miocene Kugmallit and Mackenzie Bay sequences and the …

Investigating Mechanisms And Day-Level Factors That Influence Children’S 24-Hour Movement Behaviors, Hannah Parker

Theses and Dissertations

Twenty-four hour movement behaviors (i.e., physical activity (PA), screen time (ST), and sleep) are associated with health outcomes, chronic disease (obesity, type 2 diabetes), and mortality. Most literature evaluating children’s 24-hour movement behaviors has focused on static person-level demographic information such as age or biological sex. Relatively less work has examined the variable factors that change day to day, such as environment or context. The Structured Days Hypothesis (SDH) suggests that when children are in structured environments, they have healthier movement behaviors compared to less structured environments where children have more discretionary time to engage in obesogenic behaviors. Besides school/childcare, …

Understanding Community College Students’ Thoughts And Motivations Regarding Tutoring In An Undergraduate Mathematics Course, Whitney Paige Cherekos

Theses and Dissertations

This mixed-methods study examines community college students’ thoughts and motivations regarding tutoring, with the aim of identifying disparities in tutoring utilization and engagement at a community college in North Carolina. The purpose of the dissertation is to evaluate tutoring effectiveness and explore students’ perceptions of tutoring. The findings of this study led to proposed solutions to reduce or eliminate the barriers that today’s community college students encounter when needing academic support.

To evaluate tutoring effectiveness, I collected quantitative data from institution registration reports, transcripts, tutoring logs, and an anonymous student survey for students enrolled in multiple sections of a single …

In Their Own Words: How Standardization Shapes Student Learning Experiences, Jessica Cantley

Theses and Dissertations

This qualitative action research study explores how students perceive and experience standardized and elective educational environments in a rural, Title I high school in the U.S. South. Through semi-structured interviews and focus group discussions with seven diverse participants, the study investigates student-defined learning objectives, motivation and engagement across different classes, and youth perceptions of valuable learning experiences. The research is grounded in constructivism, applying feminist theory and critical race theory as lenses to challenge power dynamics and promote equality in education.

Findings confirm the problem of practice that inspired the study by revealing a contrast between students’ experiences in standardized …

Awareness And Practice Methods For Musicians With Invisible Disabilities: Insights Gained From Playing The Flute With Ehlers-Danlos Syndrome, Jessica Pelltier

Theses and Dissertations

Ehlers-Danlos Syndrome (EDS) is a connective tissue disorder that presents significant physical and mental challenges for musicians, particularly in instrumental performance. These challenges may include chronic pain, joint instability, fatigue, anxiety, and depression. While such symptoms are associated with EDS, they are not exclusive to it and are also common among individuals with other invisible disabilities, such as fibromyalgia, postural orthostatic tachycardia syndrome (POTS), celiac disease, attention-deficit/hyperactivity disorder (ADHD), generalized anxiety disorder (GAD), and chronic fatigue syndrome (ME/CFS). This study explores the experiences of flutists with EDS and other invisible disabilities, focusing on the coping strategies and adaptations they use …

Examining Coping, Individual Resilience, And Family Resilience As Strengths-Based Factors For Lgbtq+ Individuals, Elizabeth Moriarty Combs

Theses and Dissertations

Lesbian, Gay, Bisexual, Transgender, Queer/Questioning, and More (LGBTQ+) individuals are part of a diverse and complex community that has unique considerations regarding physical and mental health. While there is ongoing health equity research regarding LGBTQ+ individuals, the focus is often on health disparities. A strengths-based approach to helping LGBTQ+ individuals through research and other avenues may be beneficial. This multi-manuscript dissertation includes two studies that explored the current literature on strengths-based factors such as coping, individual resilience, and family resilience within LGBTQ+ individuals, as well as determined the feasibility of utilizing these factors to assist LGBTQ+ individuals with health and …