Digital Commons Network^™

A Hindered Phenol Containing Pvc/Cuo Nanocomposites; Study On The Mechanical And Thermooxidative Properties, Mohsen Hajibeygi, Alireza Ghasemi

Turkish Journal of Chemistry

The effect of synthesized 5-((4-hydroxy-3,5-di-tert-butylphenyl)diazenyl)isophthalic acid (HBA) containing a hinderedphenol derivative on the thermooxidation, hydrochloric acid release time, and mechanical strength of PVC/CuO nanocompositeswas studied. Moreover, 5-((4-hydroxy-2,5-dimethylphenyl)diazenyl)isophthalic acid (HMA) was synthesized for comparison ofcorresponding PVC nanocomposite properties. PVC nanocomposite thin films were prepared through in situ surface modificationof CuO nanoparticles with HBA and HMA, individually, in the PVC solution. The XRD and FE-SEM results clarified the desirabledispersion of CuO nanoparticles. The PVC sample with loading of 5 wt% from each HBA and CuO was found to be the most thermallystable, which was confirmed by thermogravimetric analysis in inert conditions. The …

Platinum Group Metal (Pgm) Free Multi Metallic Nanomaterial: A Potential Electrocatalyst For Ethanol Oxidation, Susmita Singh, Prodipta Pal, Soumik Roy, Shalini Basak, Prantica Saha, Anushna Dutta, Sinthia Saha, Mainak Bose

Turkish Journal of Chemistry

Comprehensive studies of the ethanol oxidation reaction (EOR) have shown high interest in fuel cell technologies. As anodecatalysts, introducing platinum group metal (PGM) free catalyst is promising for higher catalytic activity towards the EOR, as these arecost-effective, pollution-tolerant, and suitable for sustainable energy conversion. In this investigation, multi walled carbon nanotube(MWCNT) supported PGM-free electrocatalysts are synthesized by the impregnation reduction method. The atomic structure,composition, and morphology of nanoalloy catalysts are discovered through X-ray diffraction (XRD), Raman spectroscopy and fourier-transform infrared (FTIR) spectroscopy techniques. Electrochemical behaviours have been analysed by cyclic voltammetry (CV), linearsweep voltammetry (LSV), Chronoamperometry (CA), and electrochemical impedance …

Nonadhesive Membranes: Preparation And Characterization Of Modified Phbhx Membranes, Funda Alkan, Murat Demi̇rbi̇lek, Oktay Aydin, Berrak Gümüşkaya Öcal, Neli̇sa Laçi̇n Türkoğlu, Mustafa Türk, Mehmet Ali̇ Onur

Turkish Journal of Chemistry

After abdominal surgery, there is a possibility of adhesions between the abdominal organs and the abdominal wall. Theadhesions can lead to problems such as chronic pain, intestinal blockage, and infertility. To prevent adhesion, antiadhesion patchescan be used. In this study, poly hydroxybutyrate-co-hexanoate membranes were fabricated as antiadhesion patches and modified witheither fatty acids or polyethylene glycol. The homogeneity and protein absorption of the membranes were assessed. The effects onblood coagulation factors were determined and the adhesion-proliferation properties of human fibroblast cells on the membranes weredetermined. The results show that myristic acid slightly increases surface free energy (40.7 ± 4.2 mN/m), …

Preparation And Characterization Of Rhfe/G-C3n4 Nanoparticles For Efficient Hydrolysis Of Sodium Borohydride, Merve Uçar Kaya, Mehmet Yurderi̇, Mehmet Zahmakiran

Turkish Journal of Chemistry

Highly effective graphitic carbon nitride-supported RhFe Nanoparticles (denoted as RhFe/g-C3N4) were prepared using a simple wet impregnation-reduction method for the hydrolysis of sodium borohydride (NaBH4). The obtained RhFe/g-C3N4 catalyst was characterized using advanced analytical/spectroscopic techniques such as inductively coupled plasma-optical emission spectroscopy (ICP-OES), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Powder X-ray diffraction (P-XRD), X-ray spectroscopy (XPS), and fourier transform infrared spectroscopy (FT-IR). The catalytic activities of RhFe/g-C3N4 catalysts with varying Rh/Fe molar ratios were investigated, demonstrating superior catalytic activity compared to monometallic Rh and Fe. The initial turnover frequency (TOF) value of the Rh0.48Fe0.52/g-C3N4 catalyst was calculated as …

The Magnetic Beads-Based Sandwich-Shaped Immune Complexes For Rapid And Sensitiveamperometric Detection Of Sox2 Protein, Göksu Özçeli̇kay Akyildiz, Mehmet Altay Ünal, Seçi̇l Gülden, Si̇bel Ayşil Özkan

Turkish Journal of Chemistry

Sex-Determining Region Y-box 2 (SOX2) is a transcription factor protein. SOX2 expression is related to lymph nodemetastasis and distant metastasis in colorectal carcinomas. SOX2 was determined with the first magnetic disposable immunoplatform.The designed sandwich-shaped immune complexes were formed by a capture antibody, SOX2 protein, and biotinylated secondaryantibodies (dAb/HRP). The sandwich-shaped immune complex was linked to carboxylic acid functionalized magnetic beads (HOOC-MBs). This magnetic bioconjugate was dropped on the surface of the screen-printed carbon electrode (SPCE). The amperometricmeasurement was performed at –0.20 V in the presence of hydroquinone (HQ) and H2O2 against a silver pseudo-reference electrode.The optimization parameters affecting the immunoassay …

Masking Of Iron And Other Interferences During The Spectrophotometric Analysis Of Aluminum From Soil Samples Using Alizarin Red S, Hafiz Zain Ul Aabidin, Muhammad Inam Ul Hassan, Tariq Yasin, Muhammad Zubair Rahim, Ahsan Amin Bhatti, Hamayun Imtiaz, Asif Raza

Turkish Journal of Chemistry

In whole-rock geochemical analysis, the quantification of aluminum in geological samples is performed using differentanalytical techniques including UV-Vis spectrophotometry. During the spectrophotometric analysis of aluminum utilizing AlizarinRed S, iron causes significant interference, leading to inaccurate measurements of the amount of aluminum in the sample. In caseswhere leached or processed samples contain titanium, interference is also observed. However, appropriate masking agents can removethese interferences. In this study, various masking agents including Tiron, oxalic acid, ascorbic acid, and thioglycolic acid were utilizedfor the masking of iron. Among these masking agents, ascorbic acid proved to be the best candidate for masking iron. A …

Simultaneous Determination Of Sunset Yellow And Tartrazine In Real Samples On An N-Butylamine-Graphite/Polyaminophenol Composite Electrode, Mürşi̇de Ceren Afşar, Zekerya Dursun

Turkish Journal of Chemistry

A composite electrode was fabricated for simultaneous determination of sunset yellow (SY) and tartrazine (Tz) in foods andsyrup. It is based on n-butylamine intercalation into graphite and then dropped on a poly (4-aminophenol)/glassy carbon electrode(GCE). The electrode surface morphologies, chemistry, and electrical properties were identified by scanning electron microscopy(SEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy (RS), and electrochemical impedance spectroscopy (EIS). Thenew composite electrode significantly increased the electrochemical response of SY and Tz relative to a bare GCE. The peak currentof SY and Tz increased linearly depending on their concentrations from 0.006 μmol L–1 to 1.0 μmol L–1 (r = …

A New Water-Soluble Silicon Phthalocyanine That Catalyzes The Photodegradation Of Pollutant Dyes, Damla Nur Kaya, Behi̇ce Sebnem Sesalan

Turkish Journal of Chemistry

The removal of color arising from water-soluble dyes in wastewaters is necessary to counter the threat to health. Because of thedifficulty in elimination of these dyes by conventional methods, their photodegradation using photosensitizers such as phthalocyanines(Pcs) has been employed recently. When compared to peripherally substituted derivatives, silicon Pcs are reported to be morebiocompatible with low toxicity. Thus a new silicon Pc substituted with two quaternized dimethylamino phenoxy units (compound 1)and its quaternized derivative (compound 2) were synthesized to test its photocatalytic ability employing the dyes methylene blue (MB),eosin B (EB), erythrosine (ERB), sulforhodamine B (SRB), and brilliant blue FCF (BRB), …

The Integrative Genomic And Functional Immunological Analyses Of Colorectal Cancer Initiating Cells To Modulate Stemness Properties And The Susceptibility To Immune Responses., Issam Tout, Salim Bougarn, Mohammed Toufiq, Neha Gopinath, Ola Hussein, Abbirami Sathappan, Evonne Chin-Smith, Fazulur Rehaman, Rebecca Mathew, Lisa Mathew, Kun Wang, Li Liu, Abdulrahman Salhab, Oleksandr Soloviov, Sara Tomei, Waseem Hasan, Sahar Da'as, Yosra Bejaoui, Nady El Hajj, Karama Makni Maalej, Said Dermime, Kakil Rasul, Paolo Dellabona, Giulia Casorati, Alice Turdo, Matilde Todaro, Giorgio Stassi, Soldano Ferrone, Xinhui Wang, Cristina Maccalli

Faculty Research 2025

BACKGROUND: Colorectal cancer (CRC) initiating cells (CICs) possess self-renewal capabilities and are pivotal in tumor recurrence and resistance to conventional therapies, including immunotherapy. The mechanisms underlying their interaction with immune cells remain unclear.

METHODS: We conducted a multi-omics analysis-encompassing DNA methylation, total RNA sequencing, and microRNAs (miRNAs; N = 800) profiling on primary CICs and differentiated tumor cell lines, including autologous pairs. Functional immunological assays were performed to assess the impact of miRNA modulation.

RESULTS: CICs exhibited distinct methylation patterns, transcriptomic profiles, and miRNA expressions compared to differentiated tumor cells (p < 0.05 or 0.01). Notably, miRNA-15a and -196a were implicated in regulating tumorigenic pathways, such as epithelial-to-mesenchymal transition (EMT), TGF-β signaling, and immune modulation. The transfection of CICs with miRNA mimics led to the downregulation of oncogenic EMT markers (CRKL, lncRNA SOX2-OT, JUNB, SMAD3) and TGF-β pathway, resulting in a significant reduction of the in vitro proliferation and the tumorigenicity and migration in a zebrafish xenograft model. Additionally, miRNA-15a enhanced the expression of antigen processing machinery and decreased the expression of immune checkpoints (PD-L1, PD-L2, CTLA-4) and immunosuppressive cytokines (IL-4). The co-culture of HLA-matched lymphocytes with CICs overexpressing the miRNA-15a, elicited robust tumor-specific immune responses, characterized by a shift toward central and effector memory T cell phenotypes and prevented their terminal differentiation and exhaustion. The combination of miRNA modulation with Indoleamine 2,3-dioxygenase blockade and immunomodulating agents further potentiated these effects.

CONCLUSIONS: Our study demonstrates that the modulation of miRNA-15a …

Nhpi Health Of The Ninth Island, Sydney Unciano, Momilani Tupu, Reina Takaki-Nakagawa, Sherli Chenthittayil, Monica Morales-Hernandez

Annual Research Symposium

Since the 1970s, the population of Native Hawaiian and Pacific Islanders (NPHI) in Clark County, NV has increased. Between 2011 and 2021, a 40% growth in NHPIs was documented; thus terming Las Vegas Valley as the "Ninth Island.” Socioeconomic demands associated with the cost of living in Hawaii have been the primary reason for this diaspora. Despite moving to mitigate economic challenges, healthcare disparities among NHPIs persist. Throughout the United States, NHPI populations experience among the highest COVID-19 death rates, have a 19.8% prevalence of self-reported diabetes, and have disproportionate cardiovascular disease (CVD) risk factors compared to White and Asian …

Mmu: 02/17/25–02/23/25, Student Bar Association

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Triswinunetr Lobe Segmentation Model For Computing Dir-Free Ct-Ventilation, Gabriela Roque Oliveira Nomura, Aarom T. Luong, Ananya Prakash, Annabelle Alemand, Tanish Bhowmick, Alisa Ali, Jaimie Ren, Basil Rehani, Girish Nair, Richard Castillo, Yevgeniy Vinogradskiy, Edward Castillo

Department of Radiation Oncology Faculty Papers

Purpose: Functional radiotherapy avoids the delivery of high-radiation dosages to high-ventilated lung areas. Methods to determine CT-ventilation imaging (CTVI) typically rely on deformable image registration (DIR) to calculate volume changes within inhale/exhale CT image pairs. Since DIR is a non-trivial task that can bias CTVI, we hypothesize that lung volume changes needed to calculate CTVI can be computed from AI-driven lobe segmentations in inhale/exhale phases, without DIR. We utilize a novel lobe segmentation pipeline (TriSwinUNETR), and the resulting inhale/exhale lobe volumes are used to calculate CTVI. Methods: Our pipeline involves three SwinUNETR networks, each trained on 6,501 CT image pairs …

Elementary Italian Ii, Monica Rossi-Miller

Open Educational Resources

Italian II aims at increasing the student's ability to use basic forms of oral communication in Italian through constant use of the everyday idiom. Carefully graded practice in reading and writing supplement the conversational aspects of the course. We will cover the second half of Italian Espresso 1 that is, chapter 7 through chapter 11, and the accompanying chapters in the workbook. We also will work on vocabulary, grammar, pronunciation, oral comprehension, conversation, spelling and writing. Speaking, oral comprehension, and conversation will be
emphasized.

Italian Culture Through Film, Monica Rossi-Miller

Open Educational Resources

Introduction to important themes of Italian culture by viewing and analyzing
representative Italian films from the post-World War II era to the present. Topics examined include: the Italian family, how World War II has shaped contemporary Italian culture, Italy as a country of emigrants and immigrants, and an examination of religion and the Catholic Church.
This is a Writing Intensive course conducted in English, and all films have English subtitles.

A Writing Intensive Course Specifically is a designated course sections that—in addition to providing the established disciplinary-oriented student outcomes—incorporate approved instructional strategies and course assignments designed to enhance students’ writing …

Culture Of German Speaking Countries, Monica Rossi-Miller

Open Educational Resources

LG401 FNET is a 3 hours, 3 credits course with ENGL101 as a pre or co-requisite. It is an upper level course, however, no previous knowledge in Cultures of German speaking Countries is required, nor any knowledge of German language. The focus will be on cultures of countries in which German is an official language such as Germany, Austria, Switzerland and Liechtenstein. It fulfills 2A of the Common Core, WI (Writing intensive) requirement and Humanities elective.

Description: Students will be exposed to and discuss cultural developments in German-speaking countries including their role in the European Union. They will read …

Oregon State Rank Assessment For Wallowa Mountainbalm (Monardella Walwaamaxsia), Nora Dunkirk, Gabriel E. Campbell

Institute for Natural Resources Publications

Oregon state conservation status assessment for Wallowa mountainbalm (Monardella walwaamaxsia) using NatureServe methodology, 2025.

Sidi Zin Archaeological Project: New Investigations Into The Acheulean And Middle Stone Age In Tunisia, Eslem Ben Arous, Nabiha Aouadi, Lotfi Belhouchet, Héla Mekki, Kaïs Trabelsi, Mosbah Mabrouki, El Mabrouk Essid, Noômène Fehri, Qingfeng Shao, Christophe Falguères, Vincent Lebreton, Patrick Roberts, Robert Patalano

Biological and Biomedical Sciences Department Faculty Journal Articles

The Sidi Zin Archaeological Project aims to bridge understanding of the Acheulean–Middle Stone Age transition in northern Tunisia, a relatively understudied region in the context of hominin evolution. The Sidi Zin locality will provide chronological, palaeoenvironmental, geomorphological and cultural insights into Acheulean and Middle Stone Age occupations in Tunisia.

Resilience, Joshua Liashenko

Sociology Faculty Articles and Research

Once a ubiquitous framework for assessing the capacity for recovery, perseverance, and success in the face of adversity, resilience has been met with growing critiques in its application. As a frequently used “pretty word” within health disparities research, resilience has come to signify how at-risk communities overcome hardship in ways this work argues overdetermine their labor, activist potential, and existence. This critique examines resilience through the lens of ethnographic research conducted among transgender and nonbinary healthcare providers who provide gender-affirming care within their communities. As a marginalized community experiencing transphobia and increasing structural barriers to life-affirming and life-saving healthcare, trans …

David Garrison, Professor Emeritus, Department Of Modern Languages, College Of Liberal Arts, David Garrison, Kathy Morris

Wright State University Retirees Association Oral History Project

In this February 17, 2025 oral history interview conducted by Kathy Morris, David Garrison reflects on his thirty-year career as Professor of Spanish and Portuguese at Wright State University. He discusses the growth of the Modern Languages Department, his service as chair, his work as a translator and interpreter in the Dayton community, and the practical value of language study.

President Downs To Resign, Office Of University Communications

Gardner-Webb NewsCenter Archive

Gardner-Webb University’s President, Dr. William M. Downs, has announced he will resign from the office e!ective Feb. 18, 2025. Dr. Downs, GWU’s president since 2019, has accepted a new position as president at Campbell University in Buies Creek, N.C., and will begin there in July. He wishes to devote his full energies to preparing to take on his new role.

The Bear Essentials, February 17 2025 Edition, Dmacc Student Life

The Bear Essentials

Bear Essentials is an online newsletter published by the Student Activities Council of Des Moines Area Community College. The newsletter was established in early 2020 when DMACC closed its facilities due to the coronavirus pandemic. The newsletter covers topics such as upcoming virtual activities and events, college resources, and community service opportunities. When asked about the origins of the newsletter, Student Activities Advisor Erin Smith said, "We wanted students to know they were not alone, the entire DMACC Community was coming together to help support one another in any way possible."

How Has Alaska’S K-12 Education Spending Changed? Trends From 2017-2023, Matthew Berman, Dayna Jean Defeo

CAEPR Reports

Education funding in Alaska, as in most states, is one of the largest allocations in the state operating budget. In 2022, K-12 schools in Alaska spent $20,191 per student for current operations, which was 29% more than the national average of $15,633. However, many things are more expensive in Alaska than they are in other parts of the nation, and this is also true for operating schools. After adjusting Alaska’s spending for its higher relative costs, we find that Alaska’s per-pupil current expenditures fall below the national average by 15%. In the five years between 2017 and 2022 (the first …

Mindfulness-Based Interventions And Stress, Jacqueline Parker

Doctor of Nursing Practice Final Project Abstract

Purpose: Stress within the nursing profession is a substantial issue. Staff shortages, poor leadership, and even COVID-19 have contributed to an increase in nursing stress. Stress can negatively impact a nurse’s ability to perform at an optimal level while at work. The purpose of this project is to reduce perceived stress by implementing mindfulness-based interventions (MBI).

Background: The project was implemented in a twenty-three-bed unit that cares for the post operative pediatric population in Houston, Texas.

Methodology: A series of in-person and virtual educational lessons (eight total) on MBIs (with flyers) were implemented throughout this project. The Perceived Stress Scale …

Jazz Festival To Celebrate 50 Years Of Music History, Performance, Jeffery Woodard

Press Releases 2020-2029

No abstract provided.

Betty Jean Evans

African American Funeral Programs

Ms_Betty_Jean_Evans.pdf - Funeral program for Betty Jean Evans

The Role Of Urinary Microbiome Analysis In The Diagnostic Approach And Management Of Urinary Incontinence: A Systematic Review, Pouyan Shaker, Zohreh Roshani, Ehsan Timajchi, Zahra Sharifi, Sarah Nikzadfar Goli, Behrooz Broumand, Mohammad Ali Shafiee

Student Publications

Urinary incontinence (UI) is a significant global health issue that impacts mainly middle-aged women, severely affecting their quality of life. Emerging research highlights the urinary microbiome's complex role in the etiology and management of UI, with microbial dysbiosis potentially influencing symptom severity and treatment outcomes. This systematic review aimed to evaluate the current evidence on the urinary microbiome's role in diagnosing and managing UI, focusing on variations in microbial composition across UI subtypes. We identified 21 studies, mostly employing 16S rRNA sequencing to characterize urinary microbiota and their associations with various UI subtypes, including urgency urinary incontinence (UUI), overactive bladder …

Unm Research Highlights Multi-Level Approach To Addressing Gun Violence In African American Communities, Dustin Roberto

HSC Newsroom

No abstract provided.

Strengthening Health Care Access For Native American Elders, Dustin Roberto

HSC Newsroom

No abstract provided.

Should Country-By-Country Reporting Be Public?, Reuven S. Avi-Yonah

Articles

Under action 13 of the base erosion and profit shifting project, large multinational enterprises are obligated to file country-by-country reports with tax authorities. As of April 2024, over 80 countries have adopted a multilateral agreement on exchanging CbC reports. The United States has not adopted the multilateral agreement, but regulations require U.S.-based MNEs to file these reports with the IRS, which can then exchange them with other countries under tax treaties.

Student Senate Meeting Minutes February 17, 2025, Student Senate-Winona State University

Student Senate Meeting Minutes

This document is the official Winona State University Student Senate Minutes for February 17, 2025.