Digital Commons Network^™

Effect Of Home Bleaching With Carbamide Peroxide And Over-The-Counter Products On Stained Supra-Nano-Filled Composite: An In-Vitro Study., Lynn Harrouk, Pascale Habre, Samar Bou Jaoude, Carina Mehanna Zogheib

International Arab Journal of Dentistry

Objective: This study evaluated the impact of home and over-the-counter (OTC) bleaching products, compliant with SCCS regulations, on color changes in tea-stained supra-nano filled composite, using the CIEDE2000 formula.

Methods: One hundred Estelite® Sigma Quick discs were fabricated, thermocycled, and tea-stained for 12 days. Samples were divided into four groups: Opalescence 15% carbamide peroxide (CP) gel, White Dental Beauty 6% hydrogen peroxide (HP) strips, Pola Luminate 6% HP brush-on gel, and a control. Color was measured at baseline, post-staining, and post-bleaching using a VITA EasyShade spectrophotometer. ΔE₀₀ values were analyzed with Kruskal-Wallis and Dunn’s post-hoc tests (p < 0.05).

Results: All bleaching …

Minimally Invasive Decompression And Long-Term Follow-Up Of An Orthokeratinized Odontogenic Cyst Of The Mandible: A 7-Year Case Report, Akram Belmehdi, Karima El Harti

International Arab Journal of Dentistry

Introduction: Orthokeratinized odontogenic cyst (OOC) is a rare developmental jaw lesion with indolent behavior and low recurrence potential.

Case presentation: A 33-year-old healthy male was referred after incidental discovery of a mandibular radiolucency. Cone-beam CT revealed a well-defined unilocular lesion in close relation to the inferior alveolar canal. Aspiration confirmed its cystic nature, and a conservative decompression was performed using a rubber drain to reduce lesion size and preserve adjacent structures. Histopathologic examination identified orthokeratinized epithelium consistent with OOC. After seven months of decompression, the lesion showed marked ossification, allowing safe enucleation and peripheral curettage. Radiographic follow-ups at 19 months …

Antibacterial Efficacy Of Resin-Based Dental Composites Modified With Antibacterial Agents Against S. Mutans: A Systematic Review, Ahmad Setiawan Jarigau, Erwin Gunawan, Muhammad Akira Takashi Dharma, Fanny Dinda Nur Aulia, Lenni Indriani Hatta, Nurhayati Natsir

International Arab Journal of Dentistry

Introduction: Dental caries caused by Streptococcus mutans is a leading cause of dental restoration failure. Enhancing composite resins with antibacterial agents aims to inhibit bacterial growth and prolong restoration life.

Objectives: This review evaluates the anti-bacterial agents efficacy of these modified composites against S. mutans and explores their mechanisms and potential clinical benefits.

Methods: A comprehensive literature search was conducted across multiple databases following PRISMA guidelines, focusing on in vitro studies published between 2015 and 2025. Studies evaluating composites with antibacterial additives against S. mutans using standard microbiological assays were included. The quality of eligible studies was assessed using the …

The Effectiveness Of Anterior Torque Control By Clear Aligners In Extraction And Non-Extraction Cases : Systematic Review, Houda Ousli, Kawtar Chadli, Fatima Zaoui, Hicham Benyahia

International Arab Journal of Dentistry

Introduction: Clear aligner treatment has gained popularity in recent years. Accurate torque expression of the upper incisors is crucial for orthodontic treatment outcomes but remains challenging in invisible orthodontic treatment.

Objectives: This systematic review aims to evaluate the existing literature and critically assess the clinical effectiveness of aligners in controlling anterior torque or bucco-lingual root inclination, in both extraction and non-extraction cases.

Methods: A systematic search of Scopus, PubMed, Web of Science, Ebsco, and the Cochrane Library was conducted for peer-reviewed articles published between 2014 and March 2025. A total of 257 records were identified (Scopus: 32; Web of Science: …

Immigration-Related Sociopolitical Stress, Mental Health, And Tobacco Use Among Mexican American College Students, Seth R. Schwartz, C. Nathan Marti, Liza Talavera-Garza, Caroline E. North, Qingua Yang, Dhiraj Murthy, Srishty Arora, Anna V. Wilkinson, Alexandra Loukas

Psychological Science Faculty Publications

Sociopolitical stress associated with the policies and rhetoric coming from recent U.S. presidential administrations is of particular concern vis-à-vis Hispanic individuals, who have been disproportionately targeted for detention and deportation. Such stress may be associated with symptoms of depression and anxiety, and ultimately with tobacco use. However, there is a paucity of research examining how sociopolitical stress is associated with mental health problems and substance use among Hispanic emerging adults. Accordingly, the present study was designed to examine the extent to which, within a sample of Mexican American college students, sociopolitical stress would be linked with tobacco use indirectly through …

Gwtc-4.0: Population Properties Of Merging Compact Binaries, Ligo Scientific Collaboration, Virgo Collaboration, Kagra Collaboration, Marc Favata, Shoan Ghosh, Rodica Martin

Department of Physics and Astronomy Faculty Scholarship and Creative Works

We detail the population properties of binary neutron star, neutron star-black hole binary, and binary black hole mergers using 158 events from the cumulative Gravitational-Wave Transient Catalog 4.0. The black hole primary mass distribution consists of a power-law-like continuum that steepens above 35 M-circle dot with overdensities at 10 M-circle dot and 35 M-circle dot. Binary black holes with primary masses near 10 M-circle dot are more likely to have less massive secondaries, with a mass ratio distribution peaking at q = 0.71(-0.11)(+0.12), potentially a signature of stable mass transfer during binary evolution. Black hole spins are inferred to be …

Specific Carbohydrate Diet Versus Mediterranean Diet In Adult Patients With Mild To Moderate Ulcerative Colitis: A Randomized Controlled-Feeding Trial, Albert Sheng-Yin Chen, Long Nguyen, Brianna Gray, Katherine Williams, Jenny Gurung, Lauren Canha, Jessica Mcgoldrick, Jane Hubbard, Hamed Khalili

Student Papers, Posters & Projects

Background and aims: This pilot randomized controlled-feeding trial compared the effect of Specific Carbohydrate Diet (SCD) and Mediterranean diet (MeD) in mild to moderate ulcerative colitis (UC).

Methods: Seventeen adults were randomized to a 6-week SCD (n = 8) or MeD (n = 9) intervention. Primary outcome was change in partial Mayo Clinic score (pMCS).

Results: The study was discontinued early due to significant dropout (n = 9, 52.9%). There was no significant between-group differences observed for pMCS change (SCD, -0.8; MeD, -1.3; p = 0.499) or secondary outcomes. Exploratory metagenomic analysis revealed enrichment of Parasutterella excrementihominis …

Risk Factors Of Suicidality Among Physician Assistants, Lynn Marie Page

Walden Dissertations and Doctoral Studies

Suicide is a global public health issue that affects all ages, genders, races, and social classes. Although suicide rates are higher among health care providers than in the general public, there is a gap in the literature regarding the suicidal risk factors of physician assistants (PAs), who increasingly provide health care in the United States. The aim of this quantitative cross-sectional study was to explore the association between anxiety, burnout, and depression and the stress-reducing benefits of mindfulness-based interventions (MBIs), as well as the dependent variable suicidality among PAs in the United States. A self-directed questionnaire incorporated psychometrically validated tools …

Effect Of Naoh Concentration On The Structural, Morphological, And Tensile Properties Of Pineapple Stem Fibers, Ahmad Norca Kurnia Zen, Heru Suryanto, Aminnudin Aminnudin, Fajar Nusantara, Joseph Selvi Binoj

Journal of Mechanical Engineering Science and Technology (JMEST)

Natural fiber reinforced composites are increasingly being developed due to their environmentally friendly nature, low production costs, and safety for human health. However, the presence of lignin and hemicellulose reduces adhesion properties between fiber and composite matrix. Alkalization treatment is an effective way to remove lignin and hemicellulose attached to cellulose. This study aims to determine the optimum concentration of NaOH used during alkalization process of pineapple stem fiber. The methods included the retting process of fibers from pineapple stems. The obtained fibers were soaked in variations of 2%, 4%, 6%, and 8% NaOH for 4 hours,  then dried and …

Addressing The ‘Chicken-And-Egg’ Dilemma: Pension Reform, Market Coordination, And Policy Design, Shujaat Khan, Bo Li, Yunhui Zhao

Journal of Banking and Financial Economics

Why do domestic stock markets in many emerging market economies fail to develop, even in the presence of high savings rates? In this paper, we argue that this may be a ‘chicken-and-egg’ problem, which we formalise as a market coordination failure. We first develop a stylised game-theoretical model, showing that when long-term equity investment is subject to network externalities, the Pareto-optimal, high-investment equilibrium is not robust to noise. Individual investors, fearing defection by others, will rationally choose a low-investment (or ‘run’) strategy, trapping the market in a state of underdevelopment. We then show how a specific institutional design – a …

The Specifics Of Green Mortgages: A Case Study Of Poland, Mateusz Tomal, Ewa Gorlecka-Łabiak

Journal of Banking and Financial Economics

The green mortgage market in Poland has received limited research attention. Therefore, this article aims to present the specifics of the green mortgage market in Poland. To thoroughly investigate the issue, in-depth interviews were conducted with 12 banking sector representatives, each with varying experience and professional roles. The study’s findings revealed that there is no formal definition of green mortgages, which hinders both banks and their customers. Currently, green mortgages are rarely granted due to their limited economic benefit to borrowers and the small number of residential properties that qualify. For banks, green mortgages present an opportunity to expand their …

Enhancing Nursing Competency In The Ambulatory Surgery Center, Rachael Owokole

Walden Dissertations and Doctoral Studies

In this project, I addressed a persistent practice problem among agency nurses working in an ambulatory surgery center (ASC) in Southern California, who often enter the facility with varying familiarity with its policies and procedures. I designed this staff education, evidence-based practice (EBP), quality-improvement initiative to strengthen nursing knowledge and competency among agency nurses at the facility. The practice question was designed to assess on whether their knowledge and self-perceived competency improved after participating in the education program. I obtained evidence for the project from peer‑reviewed research, clinical guidelines, and national competency frameworks. I identified sources through systematic searches of …

Staff Education To Instruct Nurses On How To Use The Braden Scale To Increase Their Knowledge, Anna Shedrick

Walden Dissertations and Doctoral Studies

No abstract provided.

U.S. Health Care Leaders’ Strategies To Improve Operational Efficiency Through Artificial Intelligence In Hospital Settings, Antwonne Demarco Ward

Walden Dissertations and Doctoral Studies

Health care leaders in the United States increasingly adopt artificial intelligence (AI) to improve operational efficiency, yet many organizations struggle to achieve sustained operational value from AI initiatives. This problem is important to health care leaders, patients, clinicians, staff, and communities because AI-supported decisions may affect workflow, access, safety, staffing, and trust. The purpose of this qualitative pragmatic inquiry project was to explore strategies U.S. health care leaders used to improve operational efficiency through AI in hospital settings. Eight U.S. health care leaders in hospital settings across the United States participated. The technology-organization-environment framework grounded the project. Data were collected …

Gambling Under The Influence Of Cannabis: The Impact Of Simultaneous Engagement Within Individuals Who Gamble Frequently, Abby Mcphail

Electronic Theses and Dissertations Archive

Recent studies have reliably reported that cannabis use while gambling has been associated with increased gambling frequency, risking more money, and higher rates of positive screenings for gambling disorder. In the current study, we take the next step with a longitudinal approach, utilizing an ecological momentary assessment (EMA) method to track gambling behavior within individuals when they are and are not under the influence of cannabis. We hypothesized that individuals would engage in more potentially problematic gambling behavior (e.g. risking larger sums, gambling for longer periods, placing more bets) when they are under the influence of cannabis, compared to gambling …

Identification Of Map3k4-Dependent Signaling Pathways Controlling Placental Trophoblast Differentiation, Nathan Alexander Mullins

Electronic Theses and Dissertations Archive

During development, stem cells rapidly proliferate and differentiate to form the embryo and the placenta, requiring intensive increases in cellular protein synthesis and changes to the cell architecture. Chaperone proteins, including the small heat shock proteins (HSPs), are critical assistants to protein folding, preventing protein aggregation, and promoting autophagy. Mitogen-activated protein kinase kinase kinase 4 (MAP3K4) is a stress-activated kinase that promotes fetal and placental growth. MAP3K4 activates p38 and JNK in trophoblast stem (TS) cells by phosphorylating MAP2K3 and MAP2K4/7, respectively. In addition, MAP3K4 promotes activation of the PI3K/Akt signaling pathway in part through controlling expression of PDK1 in …

Analisis Respon Siswa Berdasarkan Asesmen Berbasis Taksonomi Solo (Structure Of The Observed Learning Outcome) Pada Materi Perubahan Fisika Dan Kimia, Nurul Amaliyah, Imraatul Mufidah, Dyne Rizki Puspitasari, Siti Zubaidah

Journal of Innovation and Teacher Professionalism

This study aimed to describe the level of seventh-grade students' understanding of physical and chemical changes through the analysis of their responses using a SOLO taxonomy-based assessment. The study employed a qualitative descriptive approach, with lesson implementation conducted through the Lesson Study stages of plan, do, and see. The participants were 31 seventh-grade students of SMP Laboratorium Universitas Negeri Malang. Data were collected from students' written responses to four essay questions representing the unistructural, multistructural, relational, and extended abstract levels of the SOLO taxonomy and were analyzed descriptively. The results showed that most students were at the …

Narrowband Searches For Continuous Gravitational Waves From Known Pulsars In The First Two Parts Of The Fourth Ligo–Virgo–Kagra Observing Run, A. G. Abac, I. Abouelfettouh, Teviet Creighton, Mario C. Diaz, Raul Alberto Espinosa Perez, J. Lawrence, Francisco Llamas Villarreal, Miriam Ramos Arevalo, Soma Mukherjee, Gaukhar Nurbek, Volker Quetschke, Wenhui Wang

Physics & Astronomy Faculty Publications

Rotating nonaxisymmetric neutron stars (NSs) are promising sources for continuous gravitational waves (CWs). CWs may, if detected, inform us about the internal structure and equation of state of NSs. Here, we present a narrowband search for CWs from known pulsars, for which a matched-filter search can be applied. Narrowband searches are robust to mismatches between electromagnetic (EM) and gravitational emissions, in contrast to fully targeted searches where they are assumed to be phase-locked. In this work, we search for the CW counterparts emitted by 34 pulsars using data from the first and second parts of the fourth LIGO–Virgo–KAGRA observing run. …

Gwtc-4.0: Population Properties Of Merging Compact Binaries, A. G. Abac, I. Abouelfettouh, Teviet Creighton, Mario C. Diaz, Raul Alberto Espinosa Perez, J Lawrence, Francisco Llamas Villarreal, Soma Mukherjee, Volker Quetschke, Wenhui Wang

Physics & Astronomy Faculty Publications

We detail the population properties of binary neutron star, neutron star–black hole binary, and binary black hole mergers using 158 events from the cumulative Gravitational-Wave Transient Catalog 4.0. The black hole primary mass distribution consists of a power-law-like continuum that steepens above 35 M⊙ with overdensities at 10 M⊙ and 35 M⊙. Binary black holes with primary masses near 10 M⊙ are more likely to have less massive secondaries, with a mass ratio distribution peaking at  q=0.74+0.13−0.13, potentially a signature of stable mass transfer during binary evolution. Black hole spins are inferred to be nonextremal, with …

Hardware-Driven Race-To-Halt (Rth) In Conjunction With Dynamic Voltage And Frequency Scaling (Dvfs) For Memory Path Power Management, Anthony Douglas Masterson

Defensive Publications Series

This publication describes systems and techniques to manage power for dynamic memory interfaces within system-on-chip architectures.  In some implementations, memory paths utilize discrete operating frequencies.  The described systems introduce a hardware-driven synchronization and dynamic voltage and frequency scaling (DVFS) mechanism that adjusts the active time of a memory interface based on real-time utilization.  By operating the memory interface and associated requestor blocks at an elevated speed for a compressed burst period, and subsequently power-gating these components, a variable offline period is created.  This synchronization effectively yields a continuous spectrum of bandwidth scaling levels.  The hardware-driven approach coordinates active and inactive …

Female Resistance To Patriarchal Norms: A Study Of Identity And Self-Determination In The Film Enola Holmes (2020), Mikkial Muna, Eli Nofriati, Zuraini Zuraini

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study examines the representation of women's resistance to patriarchy through identity formation and self-determination in the film Enola Holmes (2020). Set in the Victorian era, the film portrays a patriarchal society that limits women's rights, educational opportunities, and freedom to determine their own lives. This study employed a descriptive qualitative design with a grounded theory approach. The primary data were collected through repeated observation of the film, focusing on relevant scenes, dialogues, character actions, and visual elements, and were analyzed using thematic analysis interpreted through the perspectives of patriarchy and liberal feminism. The findings reveal that patriarchy is represented …

Assessing Digital Collaborative Skills Among Pre-Service Elementary Teachers: Initial Instrument Evidence And Demographic Differences, Candra Utama, Aynin Mashfufah, Esti Untari, Sofia Haratee

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

Digital collaboration skills are an important competence for prospective elementary school teachers as 21^st-century learning demands the ability to use technology to work on a team, to communicate and share responsibilities, and to reflect on the learning process. This study aims to analyze evidence of the instrument initial validity, reliability, collaborative skill profile, and score differences based on the demographic characteristics of pre-service elementary teachers after participating in digital-based collaborative learning. The research uses a post-implementation evaluative quantitative approach sourced from a digital collaborative learning research design in the fourth-semester of elementary school teacher education study program at …

Opening Remarks, Jelani Jefferson Exum, Celine Lawrence, Mark L. Movsesian

Journal of Catholic Legal Studies

No abstract provided.

Central Asia's Kaleidoscope Of Identities: Sport As The Perfect Instrument For Nation-Building, Khais Rahmanie

Journal of Global South Sport Studies

The five Central Asian countries emerged from Soviet collapse with arbitrarily drawn borders, weak national identities, and deeply complex ethnic and religious landscapes. Predominantly Muslim but heir to seventy years of Soviet secularization, each state contains substantial minority populations. Confronted with these internal fractures, the governments of these countries have since their independence in the 1990s turned to sport as a primary instrument for forging social cohesion, managing interethnic tensions, and legitimizing their authority. This article examines the ethnic lines, explains why certain sports and events are specifically organized in particular regions, and traces sport's evolution from a Soviet tool …

Acknowledgements

Calliope

No abstract provided.

On The Horizon, Matthew Recker

Calliope

No abstract provided.

Artificial Intelligence And Challenges Of Sustainable Library Services For Children And Young Adults In Nigeria, Ishioma Nwanapayi Iwegbue, Chigozie Blessing Mba

Library Philosophy and Practice (e-journal)

No abstract provided.

Understanding The Effects Of Simulated Microgravity On Staphylococcus Epidermidis And Escherichia Coli In Co-Culture, Emma Costa, Mitchell K. Villafania, Makaila Olson, Kareigh N. Gammon, Hugo Castillo

Beyond: Undergraduate Research Journal

With the popularity of space travel increasing, it is important to understand the effects of microgravity on microbial communities as alterations on bacterial interactions can occur. Staphylococcus epidermidis and Escherichia coli are bacteria that are commonly found within human microbiomes. S. epidermidis is a cocci-shaped gram-positive bacterium that is part of the human skin microbiome. However, it can gather on sites of open skin and enter the body leading to an infection. E. coli is a rod-shaped gram-negative bacterium that can be found in the human gut microbiome. The pathogenic strains of E. coli have the potential to cause harmful …

Efficacy Of A Pre-Camp Online Course For Influencing Staff Knowledge Of Ticks,Tick-Borne Illness, And Tick Practices, Barry A. Garst, Alexandra Skrocki, David Lawrence White, Tracey Gaslin, Ashley Dehudy

CompassPoint

No abstract provided.

Influence Of A Brief Autism Educationintervention On Peer Engagement Andinclusion At Mainstream Day Camps, Sandy Thompson-Hodgetts, Ashley Mckillop, Melanie Couture, Stephanie Shire, Jonathan A. Weiss, Lonnie Zwaigenbaum

CompassPoint

No abstract provided.