Digital Commons Network^™

A Novel Graphene Nanoplatelets Electrochemical Aptamer Biosensor For Glycated Human Albumin Detections, Hadi Al-Sagur, Ali Al-Jawdah, Ali Al-Khazraji, Alexei Nabok

Baghdad Science Journal

This study presents the development of electrochemical biosensors for the glycated albumin (GA) sensitive detection as a crucial biomarker for monitoring glycaemic control in diabetes mellitus (DM). A ferrocene-labelled DNA aptamer specific to glycated albumin was developed as an electrochemical aptamer-based sensor to detect GA. The amine-functionalized graphene nanoplatelets (GNPs), with their enhanced surface area, provided an optimal substrate for aptamer immobilization through covalent interactions. The layer-by-layer full EDC/NHS-GNPs-Aptamer biosensor, tested by cyclic voltammetry (CV), exhibited strong redox peaks due to the good electron transfer activity between the biosensing structures. The GA-aptamer binding was studied using square wave voltammetry (SWV), …

Circulating Levels Of Insulin-Like Growth Factor I (Igf-I) And Risk Of Multiple Myeloma: An Observational And Mendelian Randomisation Study, Yolanda Benavente, Sara Hermosa, Nikos Papadimitriou, Alyssa I. Clay-Gilmour Ph.D., Elizabeth E. Brown, Jonathan N. Hofmann, Nathaniel Rothman, Qin Lan, Sonja I. Berndt, Demetrius Albanes, Mark Purdue, Mitchell J. Machiela, Stephen J. Chanock, Parveen Bhatti, Wendy Cozen, Aaron Norman, Susan L. Slager, James R. Cerhan, Vincent Rajkumar, Et. Al.

Faculty Publications

No abstract provided.

Chimes: March 23, 2026, Calvin University

Chimes

Calvin's 150th marked by historic royal visit by Ian Tjoelker

D3 Hockey makes nationals run in historic season before D2 move by Zack Kern & Hendrik Beelen

Celebrating 150 years: "Calvin on the Road" tour visits Grand Rapids by Alec DeYoung

Jordan archaeology May term cancelled by Sarah Sparling

Calvin's CubeSat program launches into action by Ellery Johnson

Braiding Epistemologies: A Testimonio Of A Woman Of Color Coach Creating Space In California Community College Athletics, Erika Marie Vargas

Dissertations

This qualitative ethnographic study examined the experiences of one woman of color intercollegiate coach navigating her path to a head coaching position within the California Community College (CCC) system using testimonio. Drawing on interviews with the head coach, her mentor, assistant coach, and a former athlete supported by ethnographic fieldnotes, the study analyzed her experiences through Critical Race Theory, Black Feminist Epistemology, Chicana Feminist Epistemology, and a newly articulated Indigenous Feminist Epistemology centered on relational accountability, embodied knowledge, ancestral grounding, and community responsibility. Findings show that her coaching developed within institutional structures not designed for women of color. She navigated …

Anxiety, Cognitive Load, And Simulation Effectiveness In Pre-Licensure Bsn Students, Brittany Behrens

Walden Dissertations and Doctoral Studies

High-fidelity simulation experiences are an integral component of pre-licensure nursing curricula, providing students with realistic, controlled environments to develop clinical judgement skills. While these simulations enhance learning, they can increase anxiety and cognitive load, potentially impairing students’ ability to process information and derive meaningful outcomes. The purpose of this quantitative, correlational study was to examine the relationships among pre-simulation anxiety, cognitive load, and perceived simulation effectiveness in pre-licensure BSN students. Data were collected from 90 participants using the shortened Spielberger State-Trait Anxiety Inventory (STAI), the Cognitive Load Measurement–Naïve Rating Questionnaire, and the Simulation Effectiveness Tool–Modified (SET-M). Pearson correlation analyses indicated …

Human Services Administrators’ Perceptions Of Youth In Acute Crisis Needs, Carey Alvord

Walden Dissertations and Doctoral Studies

There is a lack of acute crisis services for youth in the United States. In San Luis Obispo County, California, there are no designated facilities with crisis stabilization services near family homes for children in acute crisis. Grounded in Stroul et al.’s system of care approach for children and families, the purpose of this qualitative force field analysis study was to explore human service administrators’ perceptions of the services youth in acute crisis need to stabilize within San Luis Obispo County. Directors at youth human services county departments and nonprofits were contacted to help recruit a purposeful sample of 11 …

Impostor Phenomenon And Its Implications For Business-To-Business Sales Professionals, Charlene Decesare

JWU Dissertations & Theses

Many high-performing professionals experience persistent self-doubt and fear being exposed as incompetent despite clear evidence of their success. Defined as Impostor Phenomenon (IP) by Clance and Imes in 1978, this dynamic has been studied for nearly five decades, primarily in academic and healthcare settings. IP often manifests as fear, anxiety, and misattribution of success, along with behaviors such as overpreparation, procrastination, and reluctance to seek help. Business-to-business (B2B) sales roles are complex, highly evaluative, and among the hardest positions to fill. However, empirical examination of IP in commercial roles has been limited.

Impostor experiences have increasingly …

Early Nodal Metastasis In An 81-Year-Old Woman With Subcentimeter Retroareolar Invasive Ductal Carcinoma: A Case That Defies Indolence Expectations, Christopher M. Ahmad, Rachana Tadakamalla, Rae-Anne Kastle, Andrea Weitoschova, Amer Abboud

Student Publications

Retroareolar invasive ductal carcinoma (IDC) represents an anatomically distinct subset of breast cancers that may evade early clinical detection. In elderly patients, small, estrogen receptor (ER)-positive tumors with low proliferative indices are often presumed to follow an indolent course. We report the case of an 81-year-old woman diagnosed with a 0.6-cm Grade II/III retroareolar IDC exhibiting strong ER expression, low Ki-67 (~6%), and human epidermal growth factor receptor 2 (HER2) negativity, yet with synchronous axillary lymph node metastasis confirmed at initial biopsy. This case underscores the limitations of relying on tumor size, age, and proliferation markers alone to estimate metastatic …

Xanthogranulomatous Osteomyelitis: A Systematic Review Of Reported Cases, Diagnostic Challenges, And Treatment Outcomes, Adam W. Youssef, Cameron Ballard, Dryden Dalbey, Paul M. Doney, Rayhan Shaikh, Venkata S. Puttagunta, Adil Bhatti, Michael D. Hubbard

Student Publications

Xanthogranulomatous osteomyelitis (XO) is a rare form of chronic osteomyelitis characterized by mass-forming inflammatory lesions rich in lipid-laden macrophages. It commonly presents as an osteolytic, tumor-like bone lesion that may expand rapidly and mimic malignancy on imaging, leading to diagnostic uncertainty. This systematic review was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to characterize the clinical presentation, diagnostic strategies, treatment approaches, and outcomes of reported XO cases. Case reports and case series with histopathologic confirmation of XO were included. Extracted data encompassed patient demographics, immune status, anatomic involvement, clinical features, diagnostic modalities, management …

2026 April 23 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.

An Age-Structured Model For The Effects Of Time Delay On The Dynamics Of Malaria In The Presence Of Temperature And Rainfall, Alanus Mapunda, Eunice Mureithi, Nyimvua Shaban

Tanzania Journal of Science

An age-structured model with a class of pregnant women that captures the impact of time-delay on the dynamics of malaria is established in this work. The main goal is to explore the transmission dynamics of malaria in natural setting which is comprised of pregnant women and other individuals. Some weather conditions are also considered in the model. The main importance is to investigate the evolution of various states involved in the transmission of malaria in the community. The model equilibria are analyzed to study their stability, and numerical solution of the system is presented and discussed. The result shows that …

The Power Of A Princess: Rebranding For A New Generation, Victoria A. Heath

USF Tampa Graduate Theses and Dissertations

The lyric “Well, that sounds an awful lot like princess problems” from Snow White (2025) reflects Disney’s evolving portrayal of its princesses as more self-aware and independent. This shift is echoed in earlier live-action adaptations, such as Beauty and the Beast (2017), where Belle’s longing for “adventure in the great wide somewhere” signals her rejection of a limited, traditional role. Guided by Feminist Film Theory and media framing, this study examines how Disney’s rebranding of princess characters in Beauty and the Beast (2017), The Little Mermaid (2023), and Snow White (2025) reflects contemporary ideals of empowerment. Through narrative content and …

How Do Water Utilities Meet Growing Demand And Maintain Resilience Through Water Reuse? A Systems Thinking Approach, Elizabeth F. Vicario

USF Tampa Graduate Theses and Dissertations

Water and wastewater utility management is becoming increasingly complex due to factors like urbanization, climate change, new regulations, and rising costs. Utility leaders must balance competing political and financial pressures while managing aging infrastructure, rising demand, climate resilience planning, and customer concerns about affordability. Reuse of treated wastewater has emerged as a promising solution to address scarcity, declining source water quality, and new regulations on wastewater discharge in the United States. However, water reuse is not one-size-fits-all, and bespoke solutions are needed to optimize economic, environmental, and social returns from this finite resource. Despite growing interest, little is known about …

Making Sense Of The Body: Cognitive Science, Disability, And Embodiment, Cheyne L. Joslin

USF Tampa Graduate Theses and Dissertations

The purpose of this project is to analyze different methodological approaches in the philosophy of cognitive science, with the goal of determining their usefulness for explaining and understanding bodily awareness and skill-acquisition over time. The examples of skill-acquisition are limited to motor control, impaired by various kinds of disability—but then acquired over time, via technological or rehabilitative means. These phenomena of motor learning are then viewed through the lens of two competing theoretical approaches in cognitive science: neuromechanical cognitive science, and radical enactivist cognitive science.

The strengths of the neuromechanical framework are found in its historical pedigree, and in the …

Semiotics Of Difference: Language, The Body, And Haitian Personhood In The Dominican Republic, Benjamin Puterbaugh

USF Tampa Graduate Theses and Dissertations

The present dissertation is an ethnographic and multimodal semiotic analysis of the role of signs in the daily life of Haitians in the Dominican Republic (DR). I investigate how language and other embodiments of Haitian alterity are perceived and ascribed value by hegemonic social orders. I center the analysis on the popular perceptions of the Haitian person-type or characterological figure (Agha, 2003) as (over)determiners of actual Haitian subjectivity. I investigate the ways that Haitian personhood is translated, that is, perceived and assigned value, in the Dominican context, and the implications this has on realities of Haitian immigrants. In addition to …

Students Launch Morris Maang, Communications And Marketing

Campus News Archive

No abstract provided.

Seasonal Variation And Spatial Distribution Of Heavy Metals In Groundwater: Implications For Water Quality And Health Risks, Muzhda Qasim Qader, Shevan Jamel Jirjees, Masoud H. Hameed, Chiyai Maroof Sharif

Baghdad Science Journal

Background: This study evaluated the seasonal and spatial distribution of twelve heavy metals in the groundwater samples collected in fifty wells with the aim of assessing the quality of water and health hazards associated with it. The data were analyzed to compare the wet and dry seasons were the analytical data using pollution indices, the Nemerow Pollution Index (NPI), and the Single-Factor Pollution Index (SFPI). The results revealed that the water quality was mainly excellent (NPI < 0.01) even though in some areas, lead, vanadium, and copper were contaminated. Arsenic (0.0008–0.0145 μg/L), chromium (0.0009–0.0096 μg/L), and nickel (

Influence Of Beryllium Substitution On Vibrational And Electronic Properties Of Carbon Nano-Cone: Density Functional Theory, Rajaa K. Mohammad, Hussein M. L., Ammar S. Hameed, Luma M. Ahmed, Shurooq Sabah Abed Al-Abbas

Baghdad Science Journal

Density Functional Theory (DFT) was employed to investigate the effects of beryllium (Be) substitution on the vibrational and electronic properties of a single-wall carbon nano-cone. The study aims to clarify how Be incorporation modifies the structural stability and electronic characteristics of this nanostructure. Electronic parameters including ionization potential (I), electron affinity (Eea), Fermi energy (Ef), HOMO–LUMO energies, total energy (E), and band gap (Eg) were calculated. Infrared (IR) spectra, optimized geometries, electrostatic potential maps, and electron density distributions were also analyzed. The results indicate that Be substitution reduces the ionization potential while increasing the electron affinity. Incorporation of Be atoms …

Colorimetric Detection Of Mercury (Ii) Ions Utilizing Bio-Colloidal Silver Nanoparticles Synthesized Via Microwave-Assisted Method With Matoa Leaf Extract, Ari Sulistyo Rini, Yolanda Rati, Gilar Adnan Ramadhan, Yan Soerbakti, Lazuardi Umar

Baghdad Science Journal

In this work, bio-colloidal silver nanoparticles (AgNPs) were synthesized using Matoa (Pometia pinnata) leaf extract as a reducing and stabilizing agent under microwave irradiation to promote rapid AgNPs formation. The influence of microwave irradiation powers (360, 540, and 720 W) on the optical, structural, and morphological properties of the synthesized AgNPs was systematically investigated. The AgNPs formation was characterized by yellowish-brown colloids formation with surface plasmon resonant (SPR) bands centered around 430 nm, as detected by UV-Vis spectroscopy. FTIR analysis revealed the presence of C-H and O-H functional groups from polyphenols and flavonoids in Ag⁺ ion reduction. …

Evidence-Based Practice Fellowship Program, Ilana I. Logvinov

DNP and Student Works

Objective: The aim of this project was to identify and describe nurses’ practices, attitudes, knowledge/skills, and identify gaps in educational materials’ delivery methods to build an evidence-based practice (EBP) fellowship program in an academic institution.

Methods: This was a quasi-experimental with pre- and post-assessment conducted between September 2016 and February 2017. A survey utilizing 24-item questionnaire was used to measure EBP practices, attitudes, and knowledge/skills among a convenience sample of over 700 nurses working in a single academic institution. Responses were scored on a one to seven rating scale. Gaps in educational materials’ delivery methods were measured using 3 questions …

Evaluation Of Antibacterial Activity For Aqueous Exteracted Combination Of Triphala And Aloe-Vera Against Streptoccocus Oralis: (In Vitro Study), Abbas Hussein Irrihaim, Maha Abdul-Aziz Ahmed

Muthanna Medical Journal

Background: Streptoccocus Oralis is an early colonizer in dental biofilm and contributes to plaque formation and periodontal inflammation. The search for safe, natural antimicrobial alternatives has increased interest in herbal agents such as Triphala and Aloe vera. However, their combined activity against S. oralis has not been fully assessed alongside phytochemical profiling.

Aim: To evaluate the antibacterial activity of aqueous-extracted Triphala, Aloe vera, and their combination against S. oralis, including inhibition zone measurement, MIC, MBC, and HPLC characterization. Materials and Methods: Aloe vera gel and Triphala powder were extracted using aqueous extraction and freeze-drying. Antibacterial activity was assessed using …

Beyond The Loop: Accountability And The Legal Abyss Of Autonomous Weapon Systems, Ahmad Khalil, Anandha Krishna Raj S

Indonesian Journal of International Law

The emergence of autonomous weapon systems (AWS) poses unprecedented challenges to international humanitarian law (IHL), particularly in relation to criminal responsibility. This article critically examines the existing legal vacuum concerning accountability for violations committed by AWS in the context of armed conflict. By analyzing the fluid and evolving nature of military autonomy and the consequences of removing human oversight from lethal decision-making processes, the article undertakes an in-depth assessment of international criminal law (ICL) mechanisms, including direct and command responsibility. It demonstrates the inadequacy of established legal doctrines to attribute criminal liability to designers, programmers, operators, or commanders when AWS …

Navigating Reintegration: A Qualitative Exploration Of The Challenges And Success Factors For Women Offenders In Society, Arabella Grace A. Velasquez, Beatrice Gabrielle Z. Dyquiangco, Vylet Xummer E. Pimpinio, Tamachi Agnesia Varent, Lander James Luke T. Villanueva, Alfonso B. Astudillo Iii

DLSU Senior High School Research Congress Conference Proceedings

This study explores the different challenges and success factors women ex-offenders face during their reintegration into society after being incarcerated. With the help of 11 women on parole and probation in Baguio City from interviews, the researchers were able to examine their experiences and perspectives. A qualitative research design with descriptive phenomenology was used to gather in-depth insights through face-to-face interviews. Participants were selected through purposive sampling with the assistance of the local Chief Probation and Parole Officer. Data were collected through voice recordings and observations, then transcribed and analyzed using thematic analysis. Superordinate themes emerged, namely Reintegration Struggles and …

Shades And Shapes: Intersectional Perspectives On Filipino Women’S Skin Color And Body Build, Aliah Jazz G. Alonte, Kelly Nyle M. Baligod, Mi Tang, Yuzhu Zhao, Liezl R. Astudillo

DLSU Senior High School Research Congress Conference Proceedings

This study examines how Filipino women evaluate physical attractiveness, likeability, and social competence based on variations in skin color and body build, traits shaped by colonial legacies and reinforced by contemporary media. A 2×2 factorial experimental design was used, involving 180 female college students (ages 18–24), who rated target images that varied by skin color (light vs. dark) and body build (slim vs. large). While neither skin color nor body build alone had a significant main effect on perceptions of attractiveness, a significant interaction emerged: slim, dark-skinned individuals were rated more attractive than their light-skinned counterparts, whereas light-skinned individuals were …

Navigating Ambiguity: An In-Depth Exploration Of Situationships In Contemporary Romantic Relationships, Shiywonee Khanalee D.J. Delizo, Yonah Adamae R. Dapliyan, Hildebrand Tridant A. Ban-Eg, Calvine Audric F. Canlas, Eliecea Red Yusingco, Neil Ivan D. Tong, Alfonso B. Astudillo Iii

DLSU Senior High School Research Congress Conference Proceedings

This qualitative study examined the phenomenon of situationships, which is defined as a romantic involvement that lacks clear commitment, boundaries, and labels. Situationships have surfaced in the context of modern dating culture with the rise of dating apps, in which people may display behaviors typical of couples but are contradictory to their traditional definitions of romantic relationships. This study explored the characteristics that define situationships, how people manage their inherent ambiguity, and why individuals prefer situationships over traditional established relationships. The data was gathered through in-depth interviews with 12 participants and analyzed using inductive thematic analysis of their experiences. The …

Beyond The Swipe: Understanding Observers’ Perceptions Of The Motivations And Behaviors Of Online Dating Users, Sarah Maxine A. Lucero, Maria Nicole C. Moreno, Calvine Felice T. Santiago, Liezl Astudillo

DLSU Senior High School Research Congress Conference Proceedings

This study explores how observers—individuals who observe but do not engage in online dating—perceive the motivations and behaviors of dating app users. While research has extensively explored the experiences of active users, a notable gap exists in understanding the perspectives of those who remain outside these digital spaces. Using Interpretative Phenomenological Analysis (IPA), it captured how observers constructed meaning around online relationships within the Philippine cultural context. Interviews with 11 young adults elicited that observers generally perceive online dating as convenience-driven and less genuine than conventional relationships. Notably, participants compared app-based connections to culturally established rituals such as “panliligaw,” or …

Beyond The Dark Hours: A Qualitative Exploration Of The Experiences And Coping Strategies Of Graveyard Shift Workers, Jerelie Robert Muyalde Alcause, Rhuss Maico Mangahas Bartolome, Jayvee Ysulan Bagaporo, Salvador Franz Niño Vargas Aquino, Ian Patrick P. Aquino, Arbee Ray Tokyas Akit, Alfonso B. Astudillo Iii

DLSU Senior High School Research Congress Conference Proceedings

Graveyard shifts are often correlated with poor working hours and may lead to a reduced level of cognitive and emotional function. Current studies focus on the physical effects of this schedule but often overlook the unique challenges of maintaining a work-life balance under such conditions. Through in-depth interviews, this study explores the psychological and emotional impact of long-term graveyard shifts, along with the coping mechanisms workers use to balance their work and personal lives. The findings of this study reveal that graveyard shift workers commonly experience social isolation, often distancing themselves from friends and family. Emotionally, they report feelings of …

Civil Status, Single: The Emotional Experiences And Transformations Of Single Teenage Filipino Mothers Across Generations In Their Transition To Adulthood, Ana Sofia V. Collado, Gabrielle Lumongsod, Ramona Motos, Ysabel Ronquillo, Susan Grace Tana Neri

DLSU Senior High School Research Congress Conference Proceedings

Single teenage mothers in the Philippines face unique emotional and psychological challenges as they transition from adolescence to adulthood. These challenges often stem from societal stigma, guilt, and the loss of personal aspirations, which negatively affect their mental health and self-identity. Guided by Intersectionality theory, this study explores the emotional experiences of single teenage Filipino mothers, aiming to understand how early motherhood influences their emotional well-being, identity formation, and personal growth. Six Filipino women, aged 18 to 55, were purposively selected to provide a diverse range of generational perspectives. Semi-structured interviews were conducted, and the data were analyzed using Braun …

Exploring The Intersection Of Faith, Empathy, And Healthcare Trust In The Experience Of Informal Caregivers, Dr. Julie Yonker, Elizabeth Yuniwo, Jamie Lee, Mesalenuo Tsurho, Meral Moawad, Toluwani Adekunle

University Faculty Publications and Creative Works

• Informal caregivers—adults providing unpaid medical or physical care to family or friends with adult-onset conditions—are essential yet often unrecognized contributors to U.S. health care. 
• One in four adults serve as caregivers, providing care valued at over $600 billion (AARP 2025). 
• Despite their vital role, many lack training, social support, and connection to professional care networks. 
• Public health professionals can promote sustainable, whole-person care by integrating caregiver training and referral systems into practice.

To Ban Or Not To Ban? Should Youth Social Media Use Be Regulated?, Leena Hilaly

Opinion Matters: Student Analyses of World News

This piece discusses Australia's recent social media youth ban and the negative implications of implementing sweeping government legislation on privacy, personal liberties, and state power.