Digital Commons Network^™

Developing A Protocol To Obtain Source Directivity Of Hydroacoustic Transducers In A Water Tank, Benjamin White

Undergraduate Honors Theses

This thesis describes the formulation and application of a methodology designed to obtain source directivity of hydroacoustic transducers in the BYU Underwater Acoustics Laboratory. Piezoelectric transducers are presented, and common methodologies to measure their directivity are reviewed. The schematics of the BYU Underwater Acoustics Lab are explained, including the use of positioning robots to position the source-receiver pair in the measurement chain. The protocol is divided into different configurations comprising various source-receiver orientations. The processes of time gating, calculation of OASPL, and plotting onto directional axes are described. The protocol is tested across four different alternative configurations, including one method …

Measurement-Aware Zero-Phase Iterative Learning Control For Robust Regulation Of Nonideal Boost Converters In Electric Vehicle Fast Charging, Aytaç Altan, Mohammed S. Alzaidi, Cağfer Yanarateş

Turkish Journal of Electrical Engineering and Computer Sciences

Integrating battery energy storage with DC-DC boost converters for electric vehicle fast charging exposes the regulator to ageing-induced parameter drift, periodic load pulses, and, critically, the nonidealities in the output-voltage sensing chain. This paper proposes a measurement-aware, zero-phase iterative learning control scheme for robust output-voltage regulation of a nonideal boost converter whose parameters are matched to those of a commercial Texas Instruments TPS6102x battery regulator. The controller combines an inner proportional-integral stabilizing loop with an outer zero-phase learning law that updates a feedforward correction based on the sensor-captured output trajectory; a forward-backward robustness filter suppresses the amplification of measurement noise …

Cover And Contents

Turkish Journal of Zoology

No abstract provided.

Revealing Cryptic Lineage Diversity In The Persian Gulf And Oman Sea Groupers (Perciformes: Epinephelidae): Phylogenetic And Species Delimitation Insights, Ehsan Damadi, Faezeh Yazdani Moghaddam, Masoumeh Gholipour Cheshm Gilak, Mehdi Ghanbarifardi

Turkish Journal of Zoology

Groupers (Epinephelidae) are a taxon of great commercial interest due to their large body size and high market value, and are also an important ecological species for biodiversity conservation in coral reef ecosystems. Despite their importance, phenotypic convergence among species generally leads to incorrect taxonomic identification, an issue enhanced by molecular studies revealing the presence of a high cryptic diversity and complicating conventional systematic frameworks. Herein, grouper species diversity in the ecologically heterogeneous Persian Gulf and Oman Sea was investigated to resolve taxonomic ambiguities and assess patterns of cryptic diversity. Mitochondrial COI gene sequencing was used in conjunction with integrative …

Cv: Martha Wilkins (Elementary Education), Martha Wilkins

Education Department Faculty Curricula Vitae

No abstract provided.

Cover And Contents

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

A Binary Multiobjective Hippopotamus Optimization Algorithm For Feature Selection In Phishing Website Detection, Fatima Belmessaoud, Sofiane Maza, Djaafar Zouache

Turkish Journal of Electrical Engineering and Computer Sciences

Phishing website detection remains a major challenge in cybersecurity as attackers continuously develop new techniques to deceive users. Identifying the most informative features from large datasets is essential to improve classification accuracy while reducing computational complexity. Feature selection is therefore widely addressed using metaheuristic optimization techniques due to their flexibility and global search capability. In this study, we propose a Binary Multiobjective Hippopotamus Optimization Algorithm (B-MOHOA) for feature selection in phishing website detection. The proposed method simultaneously optimizes two conflicting objectives: maximizing classification accuracy and minimizing the number of selected features. Unlike many existing studies that mainly focus on transfer …

Range–Angle-Dependent Oam Beamforming With A Concentric Helical Circular Fda, Uğur Yeşi̇lyurt

Turkish Journal of Electrical Engineering and Computer Sciences

Secure and spatially selective wireless transmission requires orbital angular momentum (OAM) beams that are confined to a specific range and angle, rather than propagating indefinitely along the beam axis. In this paper, a concentric helical circular frequency diverse array (CHCFDA) is proposed to generate range–angle-dependent OAM beams without requiring external phase shifters. The helical element positioning inherently provides the necessary interelement phase distribution through physical step height, while logarithmically increasing frequency offsets are applied across concentric rings—and optionally across individual elements—to eliminate range periodicity and achieve a single, well-focused OAM beam exclusively at the target location. Both linear and logarithmic …

Teachers’ Perspectives On Student-Centered Technology Integration, Kiyana Janise Bell

Walden Dissertations and Doctoral Studies

The problem that was addressed through this study was the inconsistent integration of student-centered technology among elementary teachers in an urban school district in the southeastern United States. Grounded in the technological pedagogical content knowledge framework, the purpose of this study was to explore teachers’ perspectives on the factors influencing their integration of student-centered technology. Using a basic qualitative design, semistructured interviews were conducted with 10 experienced certified K–5 teachers with at least 1 year of experience integrating technology into the curriculum. Data were analyzed through two-cycle inductive coding and thematic analysis resulting in six themes: teachers (1) demonstrated foundational …

Caregiver Burden And Health-Related Quality Of Life Among Parents Of Children With Duchenne Muscular Dystrophy, Ahmed K. Bamaga Bamaga

Journal of Medical Rehabilitation Science

Background: Caring for a child with Duchenne muscular dystrophy (DMD) places significant physical and emotional demands on parents and may negatively affect caregiver quality of life (QoL). This study assessed caregiver burden and QoL among parents of children with DMD.

Methods: This study included 77 parents of children with genetically confirmed DMD recruited from two pediatric neurology and pediatric neuromuscular clinics (King Abdulaziz University Hospital and Alsalama Hospital, Jeddah, Saudi Arabia). Caregiver burden was assessed using the 22-item Zarit Burden Interview (ZBI), and caregiver QoL using the Short Form-36 (SF-36) physical and mental component summary scores (PCS, MCS). Group comparisons, …

The Current - Volume 37 Issue 02, Nova Southeastern University

Student Newspapers

No abstract provided.

Book Review: “Review Essay On Three Works About The Ukraine War”, John A. Nagl

Parameters Bookshelf – Online Book Reviews

• The Russian Invasion of Ukraine: February–December 2022: Destroying the Myth of Russian Invincibility, by John S. Harrel

• Black Sea Battleground: The Road to Ukraine, edited by Glen E. Howard

• Beyond Ukraine: Debating the Future of War, edited by Tim Sweijs and Jeffrey H. Michaels

Reviewed by: John A. Nagl, General John J. Pershing Professor of Warfighting Studies, Department of Military Strategy, Planning, and Operations, US Army War College

A sweeping review of contemporary conflict, this review essay shows how the war in Ukraine is reshaping global security thinking and forcing strategists to confront hard …

The Bg News September 16, 2026, Bowling Green State University

BG News (Student Newspaper)

The BGSU campus student newspaper. September 16, 2026. Volume 106-Issue 04.

Innovating Effective Engineering Designs For Hazard Risk Reduction In North Carolina, Daniella Hirschfeld

Funded Research Records

No abstract provided.

Cedar: Investigating The Mesosphere And Lower Thermosphere Neutral Temperature And Winds Responses To Geomagnetic Storms Equatorward Of The Auroral Zone, Tao Yuan

Funded Research Records

No abstract provided.

"Celts In The Valley", William Lindsey Mcdonald

Research Articles

The Tennessee Valley of North Alabama retains linguistic and cultural influences from the languages of its inhabitants. Scot Irish inhabitants of Celtic origin produced a dialect that McDonald claims as a "Celtic character" through tracing common regional expressions back to their roots in the original Gaelic.

Archives As Activism: Using Cuny Archives To Examine And Analyze Social Change, Marci Littlefield

Open Educational Resources

Archives as Activism uses CUNY archival materials to help students examine the relationship between activism, social issues and social change. Students will analyze primary sources such as flyers, newsletters, photographs, student newspapers, and institutional documents and connect them to contemporary social issues. CUNY’s history of activism around, race, gender, educational access, women’s organizing and institutional power provides students with an opportunity to investigate questions about power, collective action, intersectionality and social change.

Human Service Professionals’ Support And Practice-Informed Strategies For Uninsured And Underinsured Adults Needing Mental Health-Related Services In Brazoria County, Texas, Henry Palacios

Walden Dissertations and Doctoral Studies

Access to mental health-related services has remained a significant human services concern for uninsured and underinsured adults in Brazoria County, Texas, where financial, transportation, provider-capacity, and service-coordination barriers affected access and continuity of care. The purpose of this qualitative modified action research study was to explore how human service professionals supported uninsured and underinsured adults needing mental health-related services and to identify practice-informed strategies to improve access, coordination, and continuity of care. Lewin’s change theory provided the theoretical framework. The research question explored how human service professionals supported this population and identified strategies to strengthen access, coordination, and continuity of …

The Past, Present, And Future Of Universal Opt-Out Mechanisms, Lior Jacob Strahilevitz

Coase-Sandor Institute for Law & Economics Research Paper Series

Suppose that a consumer has the legal right to opt out of receiving certain communications, being tracked across the Internet by advertisers, or having their personal data transferred from one company to another. Should the consumer be able to exercise a one-time universal opt-out that effectively binds all similarly situated companies with whom the consumer does business? Or must the consumer invoke their opt-out right repeatedly, communicating their preference to each potential transaction partner individually? This question arises in numerous different privacy contexts and elsewhere. In many instances, the answer to this procedural question of whether universal opt-out mechanisms are …

Operative Vs Non-Operative Management Of Ventral Hernia: A Population Based Study Of Long-Term Benefits And Consequences, Sourav Podder, Julia A. Baran, Scott H. Koeneman, Francesco Palazzo, Nicole L. Dugan, Christopher Keating, Sami Tannouri

Department of Surgery Faculty Papers

Purpose: Ventral hernia (VH) management has progressed beyond simply physical repair of the defect. It now involves a strategy that purposefully restores abdominal core function and prevents future complications. This study investigates the association between ventral hernia repair (VHR) and functional disorders related to the abdominal core in addition to bowel obstruction, opioid misuse, and physical therapy utilization.

Methods: This retrospective cohort study used administrative codes from the TriNetX database. The outcomes of interest were spine and pelvic floor dysfunction, constipation, incontinence, genital prolapse, bowel obstruction, opioid misuse, and physical therapy utilization.

Results: A total of 587 384 patients were …

Neonatal Outcomes In Twin Pregnancies With Birthweight Discordance: A Five-Year Retrospective Cohort Study, Marjan Mahboubi, Shadya Mohammed Salim Al Saeghi, Hansa Dhar, Dina Mohamed Abd El Fatah, Rowaida Elraih Omran Mensour, Qamariya Khalfan Saud Ambu-Saeidi

Sultan Qaboos University Medical Journal

Objectives: This study aimed to evaluate neonatal outcomes associated with birthweight discordance in twin pregnancies managed at a regional tertiary care centre in Oman. Methods: This five-year retrospective cohort study (2020–2024) was conducted at Nizwa Hospital, Nizwa, Oman, and included twin pregnancies of ≥ 24 weeks' gestation. Birthweight discordance was defined as ≥ 20%. Multivariable logistic regression analysis was performed, adjusting for gestational age at delivery, chorionicity, preeclampsia and gestational diabetes mellitus. Results: A total of 226 twin pregnancies were included, of which 45 (19.9%) had birthweight discordance ≥ 20%. Discordant pregnancies were delivered at an earlier gestational age than …

Confirmatory Factor Analysis And Measurement Invariance Of The Sexual Orientation Concealment Scale Among Nonbinary Lgbtq+ Adults, Peter D. Goldie, Michael T. Bixter, Suzanne Mclaren

Department of Psychology Faculty Scholarship and Creative Works

Sexual orientation concealment is a prevalent minority stressor among LGBTQ+ people (including nonbinary people) and it is associated with a series of adverse mental health outcomes. The Sexual Orientation Concealment Scale (SOCS) is a widely used brief measure assessing sexual orientation concealment. Although the SOCS has been used with diverse cisgender populations, its validity for nonbinary people, including those of varied racial/ethnic backgrounds and sexual orientations, remains unknown. Based on data from an international sample of 340 nonbinary LGBTQ+ individuals, the present study reports the findings of a confirmatory factor analysis to assess the one-factor structure and validity of the …

Zoonotic Fish Parasites That Pose Risks To Human Health In Türkiye, Ahmet Özer

Turkish Journal of Zoology

Fish-borne zoonotic diseases have been documented as the causative agents of considerable problems for humans on a global scale. This paper, for the first time, reveals the current zoonotic parasites of fish from wild and cultured hosts in marine, freshwater, and aquarium environments, as well as in native, endemic, and introduced hosts across different geographical areas and seas in Türkiye, based on published data to date. According to the latest global reports, zoonotic fish parasites in Türkiye are dominated by nematodes (17 species), trematodes (11 species), and cestodes (four species), followed by acanthocephalans (two species) and myxozoans (two species). The …

Otolith Morphological Variations Reveal Intraspecific Diversity In Two-Spot Barb, Pethia Ticto (Hamilton, 1822), Inhabiting The Riverine Ecosystem, Insha Hassan, Lubna Yasmeen, Mohd Sadiq, Ameer Hamza, Mohammad Afzal Khan

Turkish Journal of Zoology

The intraspecific variation in otolith wavelet coefficients, contours, and morphometric variables (six size and nine shape indices) was analyzed to discriminate stock variation in Pethia ticto collected from four selected sites along the River Ganga (Narora, Kanpur, Varanasi, and Bhagalpur). The wavelet coefficients extracted revealed symmetrical yet site-specific contour variations, particularly along the rostral, dorsal, and posterior margins, with the fourth-level wavelet explaining 98% of the cumulative accuracy and being selected for contour analysis. Permutational analysis of multivariate dispersion (PERMDISP) (F = 6.11, p = 0.002) and permutational multivariate analysis of variance (PERMANOVA) (F = 8.42, R2 = 0.179, p …

Toxicokinetics And Multibiomarker Assessment Of Coexposure To Sulfamethoxazole And  Titanium Dioxide Nanoparticles In Cyprinus Carpio, Nazish Iftikhar, Rabeea Zafar, Imran Hashmi, Asma Jamil, Christopher Joseph Martyniuk, Munib Ahmed Shafique

Turkish Journal of Zoology

The combined effects of pharmaceuticals and nanoparticles (NPs) on aquatic organisms remain insufficiently characterized. The present study examined toxicokinetics and multibiomarker responses of Cyprinus carpio (common carp) following exposure to sulfamethoxazole (SMX) and titanium dioxide (TiO₂) NPs. Juvenile fish were treated with SMX (25, 50, and 100 μg/L) alone and in combination with 1.5 mg/L TiO₂ NPs (96 h). TiO₂ NPs had a significant effect on the bioaccumulation of SMX in muscle tissues, with SMX reaching peak concentrations of 2286.54 ng/g in the 100 μg/L SMX + 1.5 mg/L TiO₂ NPs group after 72 h, compared to 1477.2 ng/g with …

Click, Listen, Reflect: Implementing Discord In Critical Listening Courses, Kenny Shania Lestari R, Metaria Metaria, Siti Nurhalimah

Bahasa dan Seni: Jurnal Bahasa, Sastra, Seni, dan Pengajarannya

Critical listening requires learners not only to comprehend spoken information but also to interpret and evaluate its meaning. Digital learning environments may support these processes by providing opportunities for repeated access to spoken input, interaction, and collaborative discussion. This study explored how Discord was implemented in a Critical Listening course and how students perceived and experienced its use in supporting their critical listening learning. The study employed a qualitative descriptive design involving 20 students from the International Class Program at Maulana Malik Ibrahim State Islamic University of Malang. Data were collected through classroom observation checklists, field notes, and focus group …

Black Existential–Spiritual Counseling: A Content Analysis, Miles Matise

Journal of Social, Behavioral, and Health Sciences

Black American existential–spiritual counseling integrates existential philosophy with the unique cultural, historical, and spiritual contexts of Black Americans to address their psychological and spiritual needs. Rooted in the lived experience of systemic oppression, alienation, and the quest for identity and freedom, this counseling approach emphasizes meaning-making, personal responsibility, and authentic living. It acknowledges the interconnectedness of spirituality and psychology, recognizing the importance of the Black church, music, and communal values in fostering resilience and empowerment. Drawing on existential themes, such as mortality, freedom, loneliness, and purpose, this approach supports clients in navigating sociocultural stressors and generational trauma through a spiritually …

Predictors Of Psychological Strain In College Students In The Context Of The Covid-19 Pandemic, Randy M. Ludwig

Journal of Social, Behavioral, and Health Sciences

The coronavirus disease 2019 (COVID-19) pandemic exacerbated the traditional challenges of being a college student. This study examined the factors associated with the mental health difficulties many college students faced during the pandemic. Factor analysis was used to uncover a latent variable called psychological strain, which was composed of mental instability, mental health strain, sadness, anxiety, and unhappiness. An exploratory path model was created to determine which factors most closely related to psychological strain. Of the 14 factors considered, 11 were significant predictors. Overall, the most important risk factor was found to be social isolation (total effects = .437), while …

Dissecting The Dissection Laboratory: Elements For Designing A Human Anatomy Laboratory: The Human Anatomy And Physiology Society (Haps)-Anatomical Donor Stewardship (Ads) Committee, Lab Resources Subcommittee, Rhiannon E. Robinson, Abbey Breckling, Danielle N. Edwards, Nicole Geske, Burhan Gharaibeh, Bobbie J. Leeper, Molly Ostwald, Mary Schilling, Bridgett Severt, Kelsey Stevens, J.P. Swigart, Jonathan J. Wisco, Melissa Zolnierz, Jeremy J. Grachan

Faculty and Staff Publications

The human anatomy dissection laboratory is a critical component of anatomical and medical education. Development, maintenance, and stocking of these laboratory spaces have unique demands, with all of the challenges in running a laboratory with Biosafety Laboratory Level 2 (BSL-2) classification, housing a large volume of tissues saturated with volatile chemicals, and safeguarding human beings all within the same space. At times, educators or laboratory managers may be tasked with helping to design a new anatomy laboratory from scratch, to give input on the renovation of an existing laboratory space (which may or may not have been used with human …

Caregiver Perspectives On Barriers And Facilitators To Adolescent Asthma Self-Management, Sangita Pudasainee-Kapri, Mei Rosemary Fu, Mary Wunnenberg

International Nursing Research Congress (INRC)

Background: Asthma is the most prevalent chronic disease in children and adolescents, disproportionately affecting minority adolescents from lower-income families (CDC, 2022). Adolescents from low-income and marginalized communities often face unique challenges with asthma control and management due to multiple adverse social and environmental factors. Caregivers play a critical role in daily asthma management (Margolis et al., 2019), however, self-management behaviors in minority families may be influenced by several individual and system level factors (Khan et al., 2021; Holley et al., 2017).

Purpose: This study aims to understand caregivers’ perspective on multilevel barriers and facilitators to adolescent asthma self-management in Camden …