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Optimizing Polyamide Thin-Film Composite Desalination Membranes: Simple And Performance-Effective Modification By Zwitterionic Monohydroxyl Monomer, Selda Erkoç İlter

Turkish Journal of Chemistry

A synthesized zwitterionic monohydroxyl monomer (ZHM) was used as an additive to incorporate zwitterionic sulfobetaine groups into the polyamide (PA) active layers of thin-film composite membranes. Incorporation of ZHM into the PA active layers was achieved through interfacial polymerization, involving the introduction of ZHM and m-phenylenediamine (MPD) into the aqueous phase, and the addition of trimesoyl chloride (TMC) to the hexane phase. The surfaces of the resulting reverse osmosis (RO) membranes were subjected to characterization through water contact angle (WCA) and field emission scanning electron microscopy (FESEM) analyses. The successful incorporation of ZHM into the active PA layers was confirmed …

Comprehensive Study Of Imidazole-Based Hydrazones: From Design, Synthesis, And Characterization To In Vitro And In Silico Antiproliferative Activity Analysis, Ömer Di̇lek

Turkish Journal of Chemistry

The aim of this study was to synthesize novel imidazole-cored hydrazones and investigate their cytotoxic activities against human breast and lung cancer cell lines using in vitro and in silico techniques. For this purpose, 5 novel compounds (6 and 7a–7d) were synthesized. The structures of the synthesized compounds were confirmed using spectroscopic methods. The cytotoxic effects were evaluated against human lung (A549) and breast (MCF-7) cancer cell lines using the MTT assay. All synthesized compounds had higher cytotoxic activity against MCF-7 cells (IC50 < 9.262 μM) than the control drug cisplatin. However, their cytotoxic activity against A549 cells (IC50 > 2.605 μM) was lower than that of cisplatin. Except for compound 7d in the A549 cell line, …

A Decision Model For Enhancing Reaction Yield: Pd(Ii) And Pt(Ii) Metal Insertion To Free Porphyrin, Özay Özaydin, Emel Önal

Turkish Journal of Chemistry

Chemical synthesis experiments are crucial for developing new materials, yet their inherent complexity and variability often lead to suboptimal results, causing significant resource and time wastage. This study proposes a novel decision support model to enhance the success rate of macromolecule synthesis experiments for sensor applications. The model leverages principles of experimental design and decision-making. We identified synthesis alternatives through a literature review and expert consultations, narrowing it down to 6 alternatives for metal salts, 3 for reactant mole ratios, 5 for organic solvents, 3 for reaction temperatures, and 4 for reaction times. Considering the time and cost constraints, this …

Synthesis, Characterization, And Drug Release Properties Of Enzyme-Responsive Oxamide-Bridged Mesoporous Organosilica Nanoparticles, Yaşar Gök, Hali̇l Zeki̇ Gök, Osman Tayyar Arli, Tuğçe Türkaslan

Turkish Journal of Chemistry

In this study, we report a novel enzyme-responsive mesoporous organosilica nanocarrier (MON) and its drug delivery properties in the presence of the trypsin enzyme. The mesoporous organosilica nanocarrier was synthesized by using the oxamide bridged bissilyl compound (2) and 1,4-bis(triethoxysilyl)benzene (BTSB). To compare the enzyme responsiveness of MON, the reference periodic mesoporous organosilica (PMO) nanocarrier was also synthesized using BTSB only. The structural determinations of the synthesized organic compounds were carried out by 1H, 13C-NMR, FT-IR, and MS, while FT-IR, XRD, SEM, EDS, transmission electron microscopy (TEM), TGA, and N2 sorption analyses were used for the characterization of MON and …

Dielectric And Mechanical Properties Of Polyaniline-Grafted Sepiolite Loaded Pvc Nanocomposites, Asif Raza, Tariq Yasin, Muhammad Nadeem, Muhammad Arshad Farhan

Turkish Journal of Chemistry

Conducting polymers exhibit interesting dielectric properties due to their unique conjugated π-electron backbone. The objective of this study was to examine the dielectric properties of nanocomposites containing a conducting nanohybrid (NH) as a filler. Polyaniline was grafted onto sepiolite by in situ emulsion graft polymerization to synthesize a conducting NH. This NH was blended with poly(vinyl chloride) (PVC) using a melt blending technique. Nanocomposites with variable amounts of nanofiller were prepared and characterized. Fourier-transform infrared (FT-IR) spectra of the NH composites show strong interactions between their individual components. The addition of the nanofiller into PVC increased its thermomechanical properties. Dielectric …

Selective Extraction Of Scandium From Other Rare Earth Elements Using A Hydrophobic Protic Ionic Liquid Composed Of Decanoic Acid And Toa, Pius Dore Ola, Reo Nishioka, Yoshiro Tahara, Michiaki Matsumoto

Turkish Journal of Chemistry

Rare earth elements (REEs) are increasingly being used in advanced materials, but their extraction remains a major challenge. This is primarily due to their nearly identical ionic radii and similarity in chemical and physical properties. Therefore, this study aims to explore the use of a hydrophobic protic ionic liquid (PIL) composed of decanoic acid and trioctylamine (TOA) to selectively extract scandium (Sc) from other REEs using acid or salt as the extraction medium. In the acidic medium, the extraction efficiency of all tested REEs was inversely proportional to the acid concentration. Meanwhile, the extraction percentage of Sc was significantly higher …

Influence Of Synthesis Parameters On The Structural Formation Of Mayenite Via The Citrate Sol-Gel Method, Büşra Eryildirim, Nuray Oktar, Doruk Doğu

Turkish Journal of Chemistry

Mayenite (Ca12Al14O33) has remarkable properties such as high oxygen mobility, ionic conductivity, and catalytic activity. It has many different applications, including oxide-conducting electrolytes, fluorescent lamps, moisture sensors, hydrogen-permeable membranes, oxygen pumps, hydrogen storage, and catalysis. However, pure and homogeneous mayenite synthesis parameters have not yet been fully explored. This study examines the effect of synthesis parameters including metal salt (MS) to citric acid (CA) molar ratios (1:1 and 1:2), pH (0.4–2), and calcination temperature (900–1200 °C) in citrate sol-gel method on the crystal structure of mayenite. Synthesized materials were examined by thermogravimetric (TG), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), …

A Disposable Biosensing System For Analysis Of Ca125 In Real Human Serum Samples, Meltem Afşar, Berfi̇n Vural, Meli̇ke Bi̇lgi̇ Kamaç, Mustafa Kemal Sezgi̇ntürk

Turkish Journal of Chemistry

Several biomarkers have been developed to track the development of ovarian cancer and identify the illness at an early stage. A promising development for ovarian cancer is using cancer antigen 125 (CA125). The objective of this work is to identify the CA125 marker by utilizing an indium tin oxide polyethylene electrode. The advantage of the designed biosensor is that it is very cheap, disposable, practical, and easy to use. The necessary parameters for the developed biosensor have been optimized in detail. Repeatability, reproducibility, regeneration, storage, and selectivity studies have been completed to characterize the proposed biosensor. Electrochemical impedance spectroscopy and …

The Current - Volume 36 Issue 1, Nova Southeastern University

Student Newspapers

No abstract provided.

Design And Evaluation Of An Electromagnetic Band Gap Structure For Self-Interference Reduction In Mmwave Full-Duplex Systems, Adewale Kehinde Oladeinde

Dissertations and Theses

Full-duplex (FD) wireless is a new technology that allows a device to transmit and receive at the same time and on the same frequency band. It has the potential to double the capacity and spectral efficiency of a wireless link compared to the family of conventional half-duplex wireless systems. The key challenge in implementing FD wireless communication is self-interference (SI): a node's transmitting signal generates significant interference to its receiver. Several previous studies have demonstrated the potential to reduce SI and develop FD radios; however, these studies are mostly limited to sub-6 GHz systems. Previous and on-going research explored various …

Adapting Publishing Principles And Best Practices For Repository-Hosted Journals: Sustainable Ideas For Enhancing Local Open Access Publishing, Andrea A. Wirth

Library Faculty Research

This poster addresses the question: How can librarians and administrators working with repository-hosted journal editors incorporate best practices into hosted journals without taking on the role of publisher and without overextending themselves?

The "Principles of Transparency and Best Practice in Scholarly Publishing" (COPE, DOAJ, OASPA, WAME, 2022) provides foundational guidance for journal publishing. The guidelines cover a robust suite of topics such as authorship, peer review, funding sources, author cost transparency, and licensing and copyright. Publishers with staff who support a suite of journals (whether 10 or 1000) may be able to evaluate and adopt such guidance relatively quickly and …

Two Decapod Crustaceans, Panopeus Herbstii And Petrolisthes Armatus, Stabilize Their Gaze Using Achromatic Visual Cues, But Not The Angle Of Linearly Polarized Light, M. Janakis, S. Guirges, A. C. Grant, I. Paris, E. F. Lopresti, Daniel Isaac Speiser

Faculty Publications

No abstract provided.

Staff Education To Integrate Hemoglobin A1c, Blood Pressure, Cholesterol, And Smoking Cessation Diabetes Management Into The Chronic Care Model For The Management Of Type Ii Diabetes In Adults In A Primary Care Clinic, Jane Mokwenye

Walden Dissertations and Doctoral Studies

A quality review of chronic care management (CCM) for Type II diabetes in adults in a primary care clinic revealed a narrow approach, inadequate staff knowledge, and a lack of staff confidence, leading to poor patient engagement, missed screenings, inadequate detection, and unaddressed complications. A staff education intervention was implemented to enhance staff knowledge and confidence in incorporating hemoglobin A1c, blood pressure, cholesterol, and smoking cessation (the ABCs) of diabetes management into the existing process. I developed a practice-focused question to assess the impact of a staff education project on improving knowledge and confidence. Compelling evidence was compiled from peer-reviewed …

The Impact Of Interactive Read-Alouds On Students’ Literacy Development, Kaitlyn Hill

Theses and Dissertations

This thesis examined how multicultural interactive read-alouds support first-graders’ literacy skills and cultural awareness. Multicultural literature was used to conduct interactive read-alouds to first-grade students. A look across all data sources suggested three main themes that occur throughout the research study. These themes included student engagement and questioning, making connections by experiencing culture through an authentic lens, and developing cultural awareness and empathy for those who are different. It was evident that incorporating multicultural literature into classroom instruction had a positive impact on students’ literacy development and cultural awareness. The data suggested that these multicultural texts supported the students’ development …

Registered Nurses' Autism Knowledge And Preparedness To Care For Autistic Patients, Bronte Elisa Weissman

Theses and Dissertations

Autistic individuals frequently report negative experiences during healthcare interactions and numerous provider-level barriers to accessing quality care, including stereotyping, perceived lack of autism knowledge, challenges with communication, and insufficient accommodations. Reports of healthcare providers’ experiences caring for autistic patients in the U.S. have largely come from physicians, who endorse inadequate training, resources, and practical guidelines. Although patients spend far more time with nurses than other healthcare providers, registered nurses (RNs)’ perspectives on caring for autistic patients in the U.S. are largely unknown and autism-focused trainings for nurses are minimal. In the current study, a survey was nationally disseminated to a …

Palpation Characteristics Of An Instrumented Virtual Cricothyroidotomy Simulator, Melih Turkseven, Trudi Di Qi, Ganesh Sankaranarayanan, Suvranu De

Engineering Faculty Articles and Research

Cricothyroidotomy (CCT) is a critical, life-saving procedure requiring the identification of key neck landmarks through palpation. Interactive virtual simulation offers a promising, cost-effective approach to CCT training with high visual realism. However, developing the palpation skills necessary for CCT requires a haptic interface with tactile sensitivity comparable to human fingers. Such interfaces are often represented by plastic partial mannequins, which require further adaptation to integrate into virtual environments. This study introduces an instrumented physical palpation interface for CCT, integrated into a virtual surgical simulator, and tested on 10 surgeons who practiced the procedure over a training period. Data on haptic …

Dominant Tree Species As A Driver Of Forest Herb Community Assembly: The Peculiar Case Of Pawpaw (Asimina Triloba), Anna Wassel

Arts & Sciences Graduate Student Theses and Dissertations

Understanding the drivers of community assembly is a key goal in ecology and conservation. One way to better understand community assembly is to understand how the presence or absence of dominant species– highly abundant species with a proportionally large effect on the ecosystem–affects assembly. This approach allows for a more generalized understanding of community assembly based on the presence or abundance of one species rather than pairwise interactions among all species in a community. In forests, studies on dominant tree species have focused on how they affect patterns of species diversity. In contrast, surprisingly little is known about how dominant …

Input Of Ultra-High-Resolution Mass Spectrometry For Bio-Oil Characterization And Upgrading Monitoring, Jasmine Hertzog, Vincent Carré, Frédéric Aubriet

PYROLIQ III – 2025: Pyrolysis and Liquefaction of Biomass and Wastes

Please click Additional Files below to see the full abstract

A Content Analysis Of Podcasts Exploring The Experiences Of Nba Players And Mental Health, Joanna D. Hedin

Walden Dissertations and Doctoral Studies

Black male athletes are at a greater risk of not seeking treatment for their mental health issues due to cultural stigmas and expectations. The purpose of this qualitative secondary data research study was to understand the experiences of Black NBA players regarding their mental health and the sociocultural factors that influence their decision making regarding participation in mental health services, as revealed through podcast appearances. Vygotsky’s sociocultural theory was applied in this study to suggest that learning is an integral part of the social process and that culture contributes to how and what one learns. This study asked about what …

Difference In High School Geometry End-Of-Year State Exam Scores Between Three Different Retake Time Frames, Christina Noel Walton

Walden Dissertations and Doctoral Studies

A grading policy was implemented in a Northeastern suburban public school district that left it to curriculum teams to define the amount of time between the original test and its retake resulting in a slight decrease in high school students’ geometry end-of-year state exam scores. Guided by Bloom’s theory of mastery learning, the purpose of this quantitative causal-comparative study was to investigate if there were statistically significant differences between high school students’ geometry end-of-year state exam scores or between high school students’ geometry math growth scores when controlling for the preassessment score differentiated by three schemes of retake timing: short-term, …

La Niña Effects On The Mjo Modulation Of North Pacific Atmospheric Rivers And Associated Western North American Precipitation, L. G. Fernandes, Paul C. Loikith, M. Mora

Geography Faculty Publications and Presentations

We investigate connections between the Madden‐Julian Oscillation (MJO) and North Pacific atmospheric rivers (ARs) and associated precipitation over North America during La Niña (LN) years. Overall, AR frequency is reduced over the northeastern Pacific and western North America in phases 2–5 of the MJO. However, under LN, increased AR activity appears over those regions in phases 4–6 and across the central North Pacific in Phase 3. Distinct effects of LN on the basic state and MJO contribute to the persistence of AR anomalous patterns in phases 3–6. For instance, MJO intensifies in Phase 3 under LN, favoring the coupling between …

Anti-Tumor Activity Of Camptothecin Analog Conjugate Of An Rspo4-Based Peptibody Targeting Lgr4/5/6 In Preclinical Models Of Colorectal Cancer, Yukimatsu Toh, Ling Wu, Jianghua Tu, Zhengdong Liang, Adela M Aldana, Jake J Wen, Li Li, Sheng Pan, Julie H Rowe, Martha E Hensel, Carolyn L Hodo, Rick A Finch, Kendra S Carmon, Qingyun J Liu

The Brown Foundation: Institute of Molecular Medicine

Background: Antibody-drug conjugates (ADCs) are a significant advancement in targeted cancer therapy, but none are approved for colorectal cancer (CRC). LGR4/5/6, highly expressed in most CRCs, are promising targets. While LGR5-targeting ADCs show strong anti-tumor effects, their efficacy is limited by LGR5 loss in some CRC cells. RSPO4, a natural ligand for LGR4/5/6, binds all three receptors with high affinity. This research develops RSPO4-based peptibody drug-conjugates (PDCs) to simultaneously target LGR4/5/6, offering a novel therapeutic approach for CRC.

Methods: LGR4/5/6 expression in CRCs was analysed using RNA-seq datasets and Western blot. Peptibody binding affinities were measured, conjugated to camptothecin analog, …

Insights Regarding The Role Of Administrative Support And Teacher Retention In A Suburban Arizona School District, Kristen Louise Tiffany

Walden Dissertations and Doctoral Studies

The problem that was addressed through this study is that teachers are leaving the profession in an Arizona high school district (AHSD, a pseudonym), which might be due to a lack of administrator support. The purpose of this basic qualitative study was to explore teachers’ perceptions of reasons they chose to remain in their positions as well as administrators’ perceptions on the support they provide to encourage teacher retention at AHSD. Grounded in Bandura’s social cognitive theory, semistructured interviews were conducted with six administrators and 10 teachers from AHSD. Saldana’s pattern coding was used with the following themes emerging: Teachers …

Understanding Loss To Follow-Up: The Role Of Social Determinants Of Health In Infants Referred After A Positive Newborn Screening – A Quantitative Analysis, Betsy Graham-Moeller Graham-Moeller

Walden Dissertations and Doctoral Studies

Newborn screening (NBS) is a vital U.S. public health initiative that identifies medical conditions shortly after birth. Patients with positive screenings are referred for medical follow-up or evaluation. However, many patients do not receive the recommended long-term follow-up, posing concerns for healthcare providers and public health professionals working to ensure timely treatment and care continuity. Based on the Social Determinants of Health framework, this quantitative, retrospective cohort study aimed to examine demographic and clinical factors associated with follow-up adherence among 691 infants identified through NBS in Colorado and Wyoming. The purpose of the study was to determine whether race, ethnicity, …

Relationship Between Perioperative Nurses’ Perception Of Empowerment Versus Burnout And Intent To Leave In A Level 1 Hospital On The East Coast, Kelly D. Sambrano

Walden Dissertations and Doctoral Studies

Retaining perioperative nurses is vital for maintaining high-quality care, operational efficiency, and financial stability in healthcare settings. These nurses are integral to surgical care and require significant training and resources, making their retention a strategic priority. This quantitative study, grounded in Kanter’s theory of structural empowerment, used secondary data to explore two main questions: (a) Which demographic factors—such as age, experience, training, certification, and loyalty predict empowerment, burnout, and intent to leave? and (b) How do empowerment and job satisfaction influence the intent to stay? With nearly 20% of the perioperative workforce expected to retire within five years, identifying retention …

Predicting Utilization Of Mental Health Services Among Undergraduate Nursing Students On College Campuses In The Mississippi Delta, Deidra Michelle Byas

Walden Dissertations and Doctoral Studies

Over recent years, concerns about the mental health of nursing students in the Mississippi Delta have increased. However, research indicated that many nursing students do not utilize mental health services. This population has received little research attention, creating a gap in the literature and leaving counselor educators and supervisors ill-equipped to prepare counselors to meet the needs of nursing students. This quantitative study examined whether attitudes toward mental health services, social and cultural stigmas, and demographic characteristics explained the variance in nursing students’ willingness to seek help. Guided by the Theory of Planned Behavior, the study focused on three areas: …

Enhancing Social Determinants Of Health Education In Home Health Care Including Social Determinants Of Health In Assessments And Care Plans For Home Health Clinicians, Emilia Mbanwite

Walden Dissertations and Doctoral Studies

This staff education-focused doctor of nursing practice (DNP) project addressed the critical practice problem of one southern health care facility staff’s knowledge on the integration of social determinants of health (SDOH) into home health care plans. Despite SDOH screening, clinicians lacked standardized training to effectively assess and intervene on factors such as housing, transportation, and food insecurity, contributing to preventable hospitalizations, particularly in vulnerable populations. The practice-focused question addressed whether an evidence-based education module could improve home health nurses’ knowledge and application of SDOH in assessments and care plans. The project’s purpose was to develop, implement, and evaluate this training …

Reconciling Harm Reduction Philosophy And Approaches Among Abstinence-Only Substance Abuse Treatment Professionals, Amy Rose Ashton-Williams

Walden Dissertations and Doctoral Studies

Historically, substance use disorder (SUD) treatment in the United States has been firmly grounded in abstinence-only treatment approaches. Harm reduction as a treatment model has gained additional traction. With increased rates of opioid use, overdoses, and advancements in medications for SUDs, harm reduction treatment approaches are becoming more important to improve lives of people who use drugs. Little is known about how counselors who have been educated, trained, and deliver abstinence-based SUD treatment reconcile use of harm reduction into their practice. To address this gap in literature, a generic qualitative study was conducted using the social constructivism theory. A purposive …

Strategies To Use Diversity, Equity, And Inclusion Programs To Increase Employee Performance And Profitability, Kecia Bailey Alexander

Walden Dissertations and Doctoral Studies

A lack of effective strategies for implementing diversity, equity, and inclusion (DEI) programs to increase employee performance and profitability is a concern for leaders in the education industry. This problem is significant to educational leaders because, without effective strategies for implementing DEI programs, they cannot address the gap in practice that hinders improvements in employee performance and organizational profitability. Grounded in Ajzen’s theory of planned behavior, this qualitative pragmatic inquiry identified and explored the effective strategies educational leaders used to successfully implement DEI programs to increase employee performance and profitability. Participants were six leaders from both for-profit and non-profit educational …

Accounting Comparability And Value Relevance Of Accounting Information: Evidence From A Change In Revenue And Expense Recognition Rules, Brandon Ater, Emrah Ekici, Thomas Noland, Christian K. Sobngwi

School of Accountancy Faculty Publications

Purpose: The purpose of this paper is to examine the accounting comparability and value relevance implications of the changes in the accounting for freight services in-process introduced through the adoption of EITF No. 91-9.

Design/methodology/approach: This is an empirical archival research paper using financial statement data and stock price information for the US transportation companies.

Findings: The results indicate that following the adoption of EITF No. 91-9, there is an increase in the level of accounting comparability for firms in the US transportation industries. This paper also finds that the reduction in the number of reporting options for revenues and …