Digital Commons Network^™

Aptamer–Gold Nanoparticle-Based Lab-In-A-Tube Colorimetric Detection Of Malathion: Evaluation With Classical And Digital Readout Techniques, Emi̇ne Güler Çeli̇k

Turkish Journal of Chemistry

Colorimetric biosensing devices represent an important class of point-of-care (POC) diagnostics due to their ability to provide visible test outputs, their ease of integration with smartphone-based sensing, and their portability for field testing. In the context of agrifood safety, there is a growing need for portable, robust, and cost-effective detection devices. Pesticide residues can be present in a wide range of environmental and food samples, from water resources to fruits and vegetables, resulting in an increasing global demand for on-site testing. Colorimetric assays, when combined with smartphone-based sensing, can effectively address these needs. In this work, the aggregation-induced color change …

Sensitive Electrochemical Sensor For Simultaneous Determination Of Epinephrine And Norepinephrine By Sio2np@Mwcnt-Cooh Nanoparticle-Modified Spces​, Merve Yilmaz Çilçar, Meli̇ke Bi̇lgi̇ Kamaç, Ayşenur Yilmaz Kabaca, Şahi̇n Toparli, Faruk Terzi̇oğlu, Emi̇r Ateş

Turkish Journal of Chemistry

Epinephrine (EP) and norepinephrine (NEP), both neurotransmitters, are two important biomolecules that play critical roles in the body, from the central nervous system to metabolic processes. They are also important biomarkers for clinical diagnosis and monitoring. In this study, a novel, fast, practical, and high-performance electrochemical sensor based on a SiO2NP@MWCNT-COOH nanocomposite was developed for the simultaneous determination of EP and NEP. The nanocomposite was modified onto the surface of screen-printed electrodes (SPCEs) and its characterization was performed (SEM-EDX, XRD, FTIR, CV, DPV, and EIS). The individual and simultaneous determinations of EP and NEP were performed using square-wave voltammetry, yielding …

Acetylcholinesterase Immobilization On A Natural Thin Membrane For Stable Biocatalyst Design, Si̇nem Öztürk, Ceyhun Işik, Mustafa Teke

Turkish Journal of Chemistry

This study involved the immobilization of acetylcholinesterase (AChE) onto a natural thin membrane extracted from the inner epidermal layer of Allium cepa, with the aim of enhancing the enzyme’s stability, activity, and reusability for potential biotechnological applications. The membrane, composed of biocompatible polymers and naturally occurring functional groups, was used as a sustainable support in a combined strategy involving adsorption followed by glutaraldehyde-mediated cross-linking. Immobilization conditions were optimized by evaluating key factors such as enzyme concentration, membrane quantity, cross-linker dosage, and contact time to achieve maximal catalytic efficiency. Structural and morphological changes on the membrane surface were assessed via scanning …

Folic Acid-Targeted Polymeric Complex Imprinted With Doxorubicin And Quercetin For Controlled Drug Delivery In Cancer Therapy, Ceren Türkcan, Emi̇rhan İşeri̇

Turkish Journal of Chemistry

​Cancer therapy is often limited by the systemic toxicity and dose-dependent adverse effects of conventional chemotherapeutic agents such as doxorubicin (DOX). In this study, a folic acid-functionalized molecularly imprinted polymeric complex based on poly(HEMA) crosslinked with ethylene glycol dimethacrylate was synthesized for the controlled release of DOX in combination with quercetin (QUE), a flavonoid known for its antioxidant and chemosensitizing properties. The aim of this work was to develop and physicochemically characterize a preliminary targeted drug delivery platform at a material-design level. The polymeric complex was synthesized via free-radical polymerization following a DOX–QUE precomplex formation step. Structural characterization was performed …

Antifungal Activity Of Isolated Compounds From Centaurea Salicifolia Var. Salicifolia Against Candida Species, Including Multidrug-Resistant C. Auris, C. Inconspicua, And C. Dubliniensis, Seli̇n Tufan, Di̇lek Şatana, Nur Tan

Turkish Journal of Chemistry

Natural compounds obtained from plants have always held great potential for drug discovery and, as such, have drawn the attention of researchers as novel antifungal molecules that can be effective against fungal resistance. The antifungal activity of sesquiterpene lactones has been extensively investigated against various fungal strains, but there is limited data on their antifungal activity against Candida species. Sesquiterpene lactones are abundant in the Asteraceae family, and 90% of identified sesquiterpene lactones have been isolated from members of this family. Three extracts obtained from the aerial parts of Centaurea salicifolia var. salicifolia, which had not been investigated prior to …

Electrochemical Determination Of Terbutaline Using A Sno2 Nanoparticle-Modified Carbon Paste Electrode, Rauf Gulamov, Şenol Alpat, Si̇bel Kilinç Alpat

Turkish Journal of Chemistry

Terbutaline hemisulfate (THS), a selective beta-2 agonist, is preferred as a bronchodilator for the treatment of asthma and bronchitis, as well as a tocolytic agent to delay labor in acute situations during premature birth. The use of beta-2 agonists above a certain dose is considered doping in sports competitions. Therefore, it is important that they be determined with high sensitivity and selectivity within a short analysis time. In this study, a SnO2 nanoparticle-modified carbon paste electrode was developed for the determination of THS. Cyclic voltammetry and differential pulse voltammetry were employed as electrochemical methods. The operating conditions of the developed …

Chitosan Microparticle-Based Antibacterial Nasal Barrier Formulation And In Vivo Evaluations, Güli̇z Ak, Ayça Erek, Tuğba Karakayali, Şadi̇ye Çeti̇n, Şenay Şanlier

Turkish Journal of Chemistry

Microorganisms remain a major cause of infectious diseases, emphasizing the need for alternative and complementary antimicrobial strategies. In this context, plant-derived materials have attracted increasing attention for their antimicrobial and protective properties. Chitosan, a biocompatible and cationic biopolymer, has emerged as an effective carrier system for encapsulating such plant-derived components. In this study, chitosan microparticles were prepared through ionic gelation followed by spray drying and loaded with thyme oil and olive leaf extract. The resulting microparticles exhibited an average size of approximately 1.8 μm and a total phenolic content of 23 mg GAE/g. These microparticles were incorporated into a glycerin–starch …

A Poly-L-Lysine-Functionalized Electrochemical Immunosensor Enables Highly Sensitive Detection Of Tumor Necrosis Factor Receptor-Associated Protein 1, Berfi̇n Vural, Mustafa Kemal Sezgi̇ntürk

Turkish Journal of Chemistry

Tumor necrosis factor receptor-associated protein 1 (TRAP-1), a member of the mitochondrial heat shock protein family (HSP90), is essential for protein homeostasis, stress response, and cell cycle. TRAP-1 not only optimizes cellular energy production but also prevents cell death, thereby supporting the survival and proliferation of tumor cells. In addition to cancer, TRAP-1 has been associated with Parkinson’s disease, certain autoimmune disorders, and abnormalities in the kidney and urinary tract. In this study, a unique and useful indium tin oxide-polyethylene terephthalate (ITO–PET)-based electrochemical biosensor is described for detecting the biomarker TRAP-1. The ITO–PET electrode, selected as the working electrode, is …

Advancing The Oresat Adcs: Design & Implementation Of An Open-Source Reaction Wheel System, Chris Kane-Pardy

Dissertations and Theses

Reaction wheels provide the primary means of precision attitude control for many CubeSat attitude determination and control systems by exchanging angular momentum with the spacecraft body. As the Portland State Aerospace Society's OreSat spacecraft transitioned from a 2U to a 3U configuration, the increased spacecraft inertia reduced the attitude control authority available from the legacy reaction wheel system. This thesis addresses that challenge through the redesign of the reaction wheel system and the development of a deterministic embedded controller and experimental framework for evaluating brushless motor commutation strategies under identical operating conditions.

The redesigned system combines an analytically sized flywheel, …

August 18, 2026 Ereporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

Software Tools And Simulation Exercises For Radiation Oncology Cyber-Attack Resiliency, Yevgeniy Vinogradskiy, James Lamb

Department of Radiation Oncology Faculty Papers

This review summarizes the rationale for radiation oncology cyberattack simulation exercises, recent results from multi-institutional resiliency drills, and the landscape of software tools developed to help clinics resume radiotherapy treatments rapidly and safely during a cyberattack or other major clinical software outage. Simulation exercises using record-and-verify (R&V) downtime and File Mode treatment delivery have identified failure modes not apparent in theoretical planning alone, including risks related to treatment documentation, repeated fractions, patient setup, and missed safety checks. Available software tools emphasize insulated backup of DICOM-format planning data and clinical notes, treatment-state dashboards, File Mode treatments, redundant R&V installations, and human-readable …

2026 Convocation, Dr.Evan Glazer, Dr.Angela Rowley, Dr.Katie Berger, David Kung

Convocation

No abstract provided.

Exploring Elite Athletes’ Perceptions Of The Practice Of Mindfulness For Mental Health And Optimal Performance, Omar A. Sesay

Walden Dissertations and Doctoral Studies

Elite athletes experience physical, cognitive, and emotional demands that affect athletic performance and personal well-being, increasing the risk for anxiety, depression, burnout, attentional difficulties, and maladaptive coping strategies. Mindfulness-based stress reduction (MBSR) has been examined for its effect on attentional control, emotional regulation, cognitive flexibility, and stress resilience, but limited qualitative research has examined how elite athletes experience the practice of mindfulness. The purpose of this generic qualitative study was to explore elite athletes’ perceptions of the practice of mindfulness for mental health and optimal performance. The theoretical framework draws from mindfulness theory and MBSR principles. Semistructured interviews were conducted …

Usa V. Kenneth Strickland

2026 Decisions

USDC for the District of New Jersey

Carolyn Gardner V. Kutztown University

2026 Decisions

USDC for the Eastern District of Pennsylvania

Mindful Parenting And Toddlers' Food Responsiveness: The Role Of Controlling Feeding Practices, Qingyu Jiang, Holly Wilhite, Natalie A. Williams, Dipti A. Dev, Caron A. C. Clark, Pearl Avari, Sarah B. Ladd

Journal of Extension

Controlling feeding practices may negatively impact children's eating behaviors. Mindful parenting may offer a promising way to reduce the use of these practices. This study examined the mediating role of pressuring children to eat and using food as a reward in the association between mindful parenting and toddlers' food responsiveness. Results indicated that higher levels of mindful parenting were associated with lower pressuring to eat, which was related to lower food responsiveness in toddlers. The results may inform Extension professionals providing mindfulness strategies for mothers of young children to improve feeding practices, ultimately reducing children's unhealthful eating behaviors.

[Introduction To] The Philosophy Of Taylor Swift, Lindsay Brainard, Ryan W. Davis, Jess Flanigan

Bookshelf

Edited by Lindsay Brainard, Ryan W. Davis, and Jessica Flanigan

• Offers the first book-length philosophical analysis focused exclusively on Taylor Swift's songwriting
• Demonstrates innovative methodologies for treating popular music as a site of rigorous philosophical inquiry
• Features essays by a diverse group of leading philosophers across multiple subfields
• Reveals new interpretive insights for both scholars and Swifties, deepening understanding of themes such as love, morality, and meaning

Surface Co-Crystallization With An Organic Single Crystal Enables Vapochromic And Luminescent Detection Of Phenols, Ivan Bondarenko, Kaleb Hood, Elani J. Cabrera-Vega, Aminata Dioume, Alaric Shaw, Josephine Bicknell, Simon J. Teat, Nicholas S. Settineri, Andrea M. Goforth, Stephanie S. Lee, Jun Jiao, Gonzalo Campillo-Alvarado

Chemistry Faculty Publications and Presentations

We present a novel approach for the vapochromic and luminescent detection of phenols through surface co-crystallization with single crystals of 9,10-bis(()-2-(pyridin-4-yl)vinyl)anthracene BP4VA. Upon exposure to 2,4,6-trifluorophenol (2,4,6-TFP), 3,4,5-trifluorophenol (3,4,5-TFP), and phenol (PhOH) vapor, BP4VA crystals exhibit significant changes in color and fluorescence intensity, offering a sensitive detection method. Detailed structural insights into intermolecular interactions are obtained from single-crystal and powder X-ray diffraction, as well as FT-IR and H NMR spectroscopies. Scanning electron microscopy and energy dispersive X-ray spectroscopy demonstrate the reversibility of these changes, with crystal morphology and surface composition nearly returning to near-pristine single crystals of BP4VA after annealing. …

The Role Of Green Competence In Enhancing Green Performance Among Healthcare Workers In Indonesian Community Health Centers, Dewi Susanna, Tris Eryando, Dwi Agustina, Artha Prabawa, Rabiatul Adawiah, Lusianah Lusianah, Ratna Sari Dewi

Media Kesehatan Masyarakat Indonesia

Climate change poses increasing risks to population health and healthcare systems worldwide. Primary healthcare facilities, partic-ularly community health centers, play a critical role in climate change mitigation and adaptation through environmentally sustainable practices. This study aimed to assess the level of green competency of Puskesmas staff and analyze relationship in the green behavior. A cross-sectional study was conducted among 102 personnel at the Community Health Center in East Jakarta, Indonesia, using a total sampling approach. Green competence was measured across five dimensions (knowledge, skills, abilities, attitudes, awareness) involving a structured questionnaire. Data were analyzed using descriptively and inferentially using chi-square …

God's Will Or Man's? The Power Of Religious Rhetoric In Shaping Wartime Domestic Policy Preferences, Claire E. Brimhall

Undergraduate Honors Theses

How do individuals represent their religious beliefs in the political sphere? Is this impacted by levels of conflict in a given society? In times of war, people of faith often rally behind leaders and policies that diverge from the values upheld by their religious institutions. In fact, in many such cases, religious affiliation and church attendance are among the strongest predictors of support for these political actors.

This thesis examines two such cases where religious voters support policies that contradict the moral teachings of their faith, advancing a theory that a state’s appeals to religion can fundamentally reshape how believers …

Are 2d:4d Finger-Length Ratios Related To Bdsm Power Play Roles? An Exploratory Study, Phoenix R. Crane

Psychology and Neuroscience Faculty Publications

This study explored the relationships between 2D:4D ratio, a biological marker influenced by prenatal androgen exposure, and personality traits among members of the BDSM community. The 2D:4D ratio, calculated by dividing the length of the second (index) finger by the length of the fourth (ring) finger, is a non-invasive measure of prenatal exposure to androgens, with a smaller 2D:4D ratio associated with higher levels of testosterone exposure. Previous, albeit conflicting, research suggests that higher levels of testosterone are associated with dominance, aggression, risk-taking, and sensation-seeking. The present study draws on these findings to propose an androgenization of power play roles. …

Improved Foraminal Expansion And Pain Scores Following Placement Of Novel Expandable Interlaminar Stabilization Device For Lumbar Spinal Stenosis, Robert P. Norton, Ian Koch, Kendra Primavera, Roy Y. Miloh, Alex R. Vaccaro, Mitchell K. Ng

Department of Orthopaedic Surgery Faculty Papers

STUDY DESIGN: Retrospective cohort study.

OBJECTIVE: To evaluate radiographic durability and clinical outcomes following placement of a novel expandable interlaminar stabilization device for single-level lumbar spinal stenosis. Specifically, we aimed to: 1) quantify immediate postoperative posterior column distraction; 2) determine whether foraminal expansion is improved postoperatively without radiographic subsidence; and (3) assess potential improvements in patient-reported pain/clinical outcomes.

METHODS: A retrospective review was performed of adult patients undergoing single-level decompression supplemented by an interlaminar device for symptomatic lumbar spinal stenosis by a single surgeon from 2024 to 2025. Radiographic parameters included anterior, middle, and posterior disc height, foraminal height, and …

Retaining Residents Is Important To New Hampshire’S Future: Why Do People Leave?, Kristine Bundschuh, Kenneth M. Johnson

Carsey Publications

Migration is critical to New Hampshire’s future. Between 2020 and 2025, the state’s entire population gain was due to migration, since more people died than were born in the state. In part, this migration gain is because fewer New Hampshire residents leave the state than residents of nearby states. While much attention focuses on attracting migrants to New Hampshire, another important piece of the state’s migration puzzle is understanding why people consider leaving.

In this brief, authors Kristine Bundschuh and Kenneth Johnson examine New Hampshire residents’ likelihood of leaving the state and explore why residents consider leaving the state. Their …

Parents’ Perceptions Of Their Children With Disabilities’ Mental Health During The Rapid Transition To Online Learning At The Time Of The Covid-19 Pandemic, Arnell Rorie Footman

Walden Dissertations and Doctoral Studies

The COVID-19 pandemic prompted an abrupt shift to online learning, raising significant concerns about the mental health of children with disabilities. Existing research highlights increased rates of anxiety, depression, and social isolation during due to the disruptions in structured routines and in-person support systems. This generic qualitative study, guided by Bronfenbrenner’s EST was conducted to explore parents’ perceptions of the mental health challenges experienced by their students with disabilities during the rapid transition to online learning at the time of COVID-19 pandemic. Data was obtained through semi-structured interviews in which parents voiced their perceptions and experiences concerning their children’s mental …

Addressing Knowledge And Data Gaps That Limit Pesticide Risk Assessment For Managed Solitary Bees Used For Alfalfa Pollination, Kimberly J. Hageman

Funded Research Records

No abstract provided.

Using Posters To Increase Vegan Entrées Chosen At Classics In Wmu’S Student Dining Center, Sarah Schneider

Honors Theses

The following experiment tested the use of specifically designed posters to see the effect on eating habits of those who ate entrées from WMU’s food counter called Classics in the Student Dining Center. The independent variable was a poster with humorous and factual elements displayed at the point of choice in the dining center. The primary dependent variable was the percentage of vegan entrees chosen out of the total number of vegan and meat entrees served. The secondary dependent variables were the number of vegan entrees prepped and served, and the percentage of each entree that was served out of …

Cover And Contents

Turkish Journal of Chemistry

No abstract provided.

Molecular Pathogenesis And Genomic Profiling Of Fusobacterium Nucleatum: A Review Of Virulence Determinants & Antimicrobial Resistance Mechanisms In Dental And Systemic Infections, Mawahb Hatem Mones, Thariat Abdualrahman Al-Joubori, Ibrahim Faisal Ibrahim

Muthanna Medical Journal

Fusobacterium nucleatum is one of the key bacteria in the oral microbiota, which plays a key role in the structural integrity of dental plaque, an anaerobic bacterium. Emerging clinical evidence has increasingly linked this opportunistic pathogen to severe systemic pathologies, notably colorectal cancer and adverse pregnancy outcomes. This review synthesizes current genomic and molecular insights to elucidate the complex mechanisms driving fusobacterial virulence and antimicrobial resistance (AMR). We critically discuss the roles of key adhesins, such as FadA and Fap2, in modulating host cell signaling and facilitating immune evasion. Furthermore, we determine the genomic architecture involved in the transfer …

Inter-Axle Torque Coordination And Upshift Optimization Of Porsche Taycan’S Awd Propulsion System Via Multi-Domain Simulation, Darrell Robinette, Peter Pollock, Dillon Babcock, Joshua Orlando

Michigan Tech Publications

This paper presents the development of a multi-domain simulation for the Porsche Taycan’s all-wheel-drive (AWD) electric propulsion system to investigate the impact of the rear drive unit’s two-speed transmission on performance and drive quality during maximum acceleration. This study was undertaken independent of the vehicle and propulsion system OEM. A lumped-parameter model of the front and rear electric drive units (EDU) and the high-voltage battery was developed and calibrated against the published data for key benchmarks, including 0–100 kph acceleration times and peak longitudinal acceleration. The mechanical shifting mechanism was reverse-engineered to simulate high-performance shift trajectories. To manage the transition, …

The Self-Aware Room: A Framework For Operational Self-Awareness In Evolvable Blended Environments, David B. Smith

Publications and Research

The Self-Aware Room (SAR) is a room-scale research environment developed within the larger Balanced Blended Space and Blended Reality Performance System research trajectory. Rather than treating the room as a conventional “smart” environment composed of fixed automation technologies, SAR approaches it as an evolvable blended environment made from physical, virtual, conceptual, sensory, computational, and performative relationships. Its defining feature is not any particular sensor, model, or output device, but the set of transformations through which physical activity becomes structured observation, bounded representation, interpreted state, governed decision, and mediated response.

This paper develops the conceptual and methodological foundations of SAR as …