Digital Commons Network^™

One-Pot Green Synthesized Protein-Based Silver Nanocluster As Prooxidant Biosensor, Esi̇n Akyüz

Turkish Journal of Chemistry

In this study, silver nanoclusters as prooxidant biosensor were eco-friendly synthesized using chicken egg white protein without any chemical reducing agents for measuring copper(II)-induced prooxidant activities of catechin, epicatechin, epigallocatechin gallate, resveratrol, gallic acid, chlorogenic acid, and rutin. The prooxidant activities were evaluated via measuring the absorption at 450 nm wavelength of the Cu(I)-neocuproine chelate formed by extraction of protein-bound Cu(I) with neocuproine reagent. Accuracy was determined by evaluating recovery values of wine, grape and apple samples and the obtained values were between 97.2%-98.9%. Intraday precision and inter-day reproducibility experiments were studied with three different experiments in a day and …

Synthesis Of Imidazo-1,4-Oxazinone Derivatives And Investigation Of Reaction Mechanism, Volkan Taşdemi̇r

Turkish Journal of Chemistry

In this study, nine different C-2 aroyl imidazole derivatives were synthesized in a one pot reaction with two steps, and the reduction reactions of these derivatives with NaBH4 were carried out under mild conditions. Substitution reaction of obtained imidazo methanol derivatives with chloroacetylchloride reagent and ring reaction of substitution products were investigated. It was determined that 1,4-imidazoxazinone derivative was obtained as a result of the cyclization reaction. The intermediate products obtained during the cyclization reaction were isolated, and the path of the reaction under different conditions was discussed.

In-Vivo Wound Healing Activity Of A Novel Composite Sponge Loaded With Mucilage And Lipoidal Matter Of Hibiscus Species, Dalia Attia, Riham Bakr, Reham Amer, Mai Abdelhafez, Asmaa Al-Mokaddem, Abd El-Nasser El-Gendy, Ahlam El-Fishawy, Marwa Fayed, Sameh Gad

Pharmacy

Many researches have been undergone to hasten the natural wound healing process. In this study, several Hibiscus species (leaves) were extracted with petroleum ether, methanol, and their mucilage was separated. All the tested species extracts were assessed for their viability percentage using the water-soluble tetrazolium. H.syriacus was the plant of choice to be incorporated in a new drug delivery system and evaluated for its wound healing activity. H.syriacus petroleum ether extract (PEE) showed a high percentage of palmitic and oleic acids while its mucilage demonstrated high glucosamine and galacturonic acid. It was selected to be formulated and pharmaceutically evaluated into …

The Involvement Of The Induction Of Anthocyanin Biosynthesis And Transport In Toxic Boron Responsive Regulation In Arabidopsis Thaliana, Ceyhun Kayihan

Turkish Journal of Botany

Recently, boron (B) has been found to form a complex with anthocyanin, which could be evidence for the B tolerance mechanisms that reduce free B in the leaf tissues of plants. However, the molecular mechanism of anthocyanin biosynthesis and transport has not been satisfactorily elucidated in plants exposed to toxic B. Therefore, the changes in expression levels of some of the phenylpropanoid pathway genes, early and late flavonoid biosynthetic genes, and transcription factors related to anthocyanin biosynthesis and transport were determined in Arabidopsis thaliana under B toxicity. Accordingly, 1 mM boric acid treatment did not cause any significant change in …

Chaetocin Enhances Callus Induction By Decreasing The Expression Of Major Leaf Polarity Genes In Nicotiana Tabacum, Ayyub Ebrahimi, Nagi̇han Özsoy, Saadet Deni̇z Gürle, Baki̇ Yaman, Şule Ari

Turkish Journal of Botany

Using chemicals known as inhibitors of chromatin remodeling enzymes is a useful approach in understanding the regulation machinery that contributes to the maintenance of or conversion to a pluri- and totipotent states of the cells in multicellular organisms. They can serve as tools to reveal the molecular and cellular mechanisms required for reprogramming. A deeper understanding of reprogramming pathways that drive the cell into a dedifferentiated state might help us enhance plant micropropagation and green biotechnology applications. Chaetocin is one of the histone methyltransferase inhibitors known as key drivers in several cellular processes. It was shown that chaetocin enhanced the …

Auxin-Induced Degradation Of Dream Proteins, Lin-9 And Lin-54, In Caenorhabditis Elegans, Karli E. Chosa

Dissertations, Master's Theses and Master's Reports

The Dp, Retinoblastoma, E2F, And MuvB (DREAM) complex mediates transcriptional repression and is highly conserved throughout a number of species, including vertebrates, Drosophila melanogaster, and Caenorhabditis elegans. Differing from mammalian DREAM, C.elegans DRM, appears to act solely in a repressive role, with the MuvB subcomplex (LIN-9, LIN-37, LIN-52, LIN-53, and LIN-54) playing a key role in the repression of genes. In this study, we use the auxin-inducible degron (AID) system, an effective, fast-acting, tool used in the degradation of degron-tagged proteins to individually deplete two key proteins of the MuvB subcomplex, LIN-9 and LIN-54, in C. elegans. The …

Economic Sustainability Analysis Of Natural Leather Industry, And Its Alternative Advancements, Yogesh Kumar Satish Kumar

Dissertations, Master's Theses and Master's Reports

Leather is one of the commonly worn fashion attires and accessories in the United States. But, despite the prevalence of leather fashion in the United States, the annual revenue of the leather industry has been decreasing steadily over the years. The purpose of this report is to investigate and discuss the probable reasons for the steady decline in the revenue. The U.S. government, after investigating the negative impact of the conventional leather manufacturing process, passed some environmental guidelines and regulations over the years. We will also discuss how these environmental regulations have been affecting the natural leather industry and also …

Multi-Level Analysis Of Atomic Layer Deposition Barrier Coatings On Additively Manufactured Plastics For High Vacuum Applications, Nupur Bihari

Dissertations, Master's Theses and Master's Reports

While hardware innovations in micro/nano electronics and photonics are heavily patented, the rise of the open-source movement has significantly shifted focus to the importance of obtaining low-cost, functional and easily modifiable research equipment. This thesis provides a foundation of open source development of equipment to aid in the micro/nano electronics and photonics fields.

First, the massive acceptance of the open source Arduino microcontroller has aided in the development of control systems with a wide variety of uses. Here it is used for the development of an open-source dual axis gimbal system. This system is used to characterize optoelectronic properties of …

Design And Testing Of An Open Source Vacuum Oven For Research, Community Recycling, And Additive Manufacturing, Benjamin R. Hubbard

Dissertations, Master's Theses and Master's Reports

To aid the continuing growth of open source tools in the research community, this thesis presents two broadly useful instruments which can be built and operated for a fraction of the cost of equivalent or inferior commercial products. The first device is a digitally-replicable scale, which provides a single framework for making measurements on the order of milligrams all the way up to tens of kilograms by supporting multiple types of load cells. The second device is a vacuum oven, which is validated using the first. The open source vacuum oven facilitates the dehydration of materials at low temperature, providing …

Age, Growth, And Otolith Microchemistry Of Golden Tilefish (Lopholatilus Chamaeleonticeps) In The Nw Atlantic, Katy Dawson

Dissertations, Master's Theses and Master's Reports

Knowledge of life-history characteristics and patterns of connectivity are important parameters to fisheries management, especially for species inhabiting hard to reach environments, such as the deep-sea. Golden Tilefish (Lopholatilus chamaeleonticeps) are slow growing, long-lived, demersal species that exhibit a patchy distribution along the continental shelf-edge of the NW Atlantic Ocean. Golden Tilefish create burrows in the clay sediment and maintain high site fidelity. These characteristics suggest the possibility of localized subpopulations across the species’ distribution; an important consideration for the resilience of this species to fishing pressure. My objectives are (1) to estimate age, and model growth of …

Comparative Study Of Biocides And Nanoparticles On Bacterial Microorganisms, Rehab Alhajjar

Dissertations, Master's Theses and Master's Reports

The increase in antimicrobial-resistant bacteria has posed challenges to treating resistant diseases. Antimicrobials such as nanoparticles (NPs) and biocides are commonly used to control microbial growth in household and industrial settings. Several studies have shown that bacteria that become resistant to biocides can also resist antibiotics. There are fewer reports of resistance to nanoparticles. Our study goals were to compare the environmental effects of biocides and nanoparticles by investigating their impacts on stream microbial community structure, the mechanism of bacterial resistance, and their interactions with natural organic matter (NOM). Our results showed that biocides dramatically altered microbial community composition and …

Marangoni Propulsion Of Active Particles, Saeed Jafari Kang

Dissertations, Master's Theses and Master's Reports

We study the surfing motion of active particles located at a flat liquid-gas interface. The particles create and maintain a surface tension gradient by asymmetrically discharging a surface tension-reducing agent. We employ theory and numerical simulation to investigate the Marangoni propulsion of these active surfers. First, we use the reciprocal theorem to establish a relationship between the propulsion speed and the release of the active chemical. This theoretical relation is utilized to examine the effect of wall confinement and geometry on the Marangoni-driven motion of active particle when the inertial effects are negligible and when the transports of the released …

Multi-Dimensional Modeling For Environmental Impact Assessment At Intersections Of The Food-Energy-Water Nexus, Jessica Daignault

Dissertations, Master's Theses and Master's Reports

This dissertation uses multi-dimensional modeling for environmental impact assessment at intersections of the Food-Energy-Water (FEW) Nexus, including life cycle assessment (LCA) modeling for quantification of environmental impacts due to household FEW consumption, a linear regression framework for quantification of water-use impacts of marginal electricity generation, and a multi-objective optimization model to assess monetization of water withdrawals for electricity generation and impacts to water stress due to electricity dispatch schemes. Chapter 2 of this dissertation summarizes the development of an LCA model that quantifies the direct and indirect environmental impacts of household FEW consumption. The model is executed through a novel …

The Effect Of Nutrition On Longevity And Fertility In Diverse Drosophila: A Tor-Mediated Process, Tessa E. Steenwinkel

Dissertations, Master's Theses and Master's Reports

Nutrition and growth are strongly linked, but not much is known about how nutrition leads to growth. To understand the connection between nutrition through diet, growth and/or proliferation, we need to study the phenotypes resulting from the activation and inhibition of central metabolic pathways. Here I use the model organism Drosophila melanogaster (D. mel.) and three non-model Drosophila species with different dietary needs, Drosophila guttifera (D. gut.), Drosophila deflecta (D. def.), and Drosophila tripunctata (D. tri.), to study the effects of dietary amino acid availability in these diverse flies on fecundity and …

Hydrodynamics Of Vibrating Perforated Plates, Muhammad Usman

Dissertations, Master's Theses and Master's Reports

The objective of this Ph.D. project is to study the hydrodynamic response of oscillating perforated plates by utilizing analytical and numerical methods. Specifically, we will examine whether the permeable plates offer superior hydrodynamic stability than their impermeable equivalents. First, we will computationally investigate the linear hydrodynamic response of vibrating perforated plates in an unbounded domain in the asymptotic limit of small KC, i.e., KC → 0. We will simulate various porosities and aspect ratios for a wide range of oscillatory Reynolds number (denoted by β) and seek to draw a comparison between our findings and the analytical works. Next, we …

Puerarin-Coated Gold Nanoparticles (Pue-Aunps) Synthesized Via Green Synthetic Route: A New Colorimetric Probe For The Detection Of Ciprofloxacin, Tasneem Zehra, Faiqa Ahsan, Muhammad Ali Versiani, Sana Wahid, Sajid Jahangir, Muhammad Raza Shah

Turkish Journal of Chemistry

Puerarin-coated gold nanoparticles (PUE-AuNPs) synthesized via green synthetic route, a new colorimetric sensor, efficiently detected the ciprofloxacin (CP) in tap water and cow milk samples. The PUE-AuNPs were characterized by UV-visible, FTIR, AFM, and DLS techniques and were found to be spherical with an average size of approximately 19-20 nm. FTIR spectrum confirms that functional groups such as -OH, -C=O, -CO and -C=C were responsible for the reduction of gold (III) chloride trihydrate. These functional groups acted as capping agents to form AuNPs. The PUE-AuNPs sensor was proved to be selective and sensitive for the detection of CP through colorimetric …

A Fluorescent Sensor-Based Tripodal-Bodipy For Cu (Ii) Ions: Bio-Imaging On Cells, Ahmed Nuri̇ Kurşunlu, Mustafa Özmen, Ersi̇n Güler

Turkish Journal of Chemistry

A general synthetic method was improved to synthesize a chemosensor based on a tripodal Bodipy (t-BODIPY) structure. The product and its intermediate products were successfully prepared and fully characterized. The metal ion sensing performance of the tripodal compound was evaluated by UV/Vis and fluorescence spectroscopies. According to the obtained data, t-BODIPY is a selective and sensitive fluorescence probe for detection of Cu2+ ions in the presence and in the absence of competing ions. This chemosensor presents relatively a low detection limit of 5.4 x10-7 M for Cu2+. Bio-imaging studies on living yeast cells suggest that t-BODIPY has some advantages over …

Development, Optimization, And In Vitro Characterization Of Different Anesthetic Wound Products, Alia Alshammari

Electronic Theses and Dissertations

ABSTRACTAcute and chronic wounds can be a significant source of pain. In the past, pain associated with chronic wounds has been perceived as an inevitable complication of wound care. Fortunately, recent approaches in wound care have developed strategies to prevent and reduce pain when carrying out wound care. Local anesthetics have been used to that end. Lidocaine is the most widely used topical anesthetic in wound care. However, literature on topical Lidocaine has focused almost exclusively on the clinical application on intact skin. This dissertation aims to advance our understanding of anesthetic wound product formulation and development. Anesthetic wound ointments …

The House Of Love And The Mental Hospital: Zones Of Care And Recovery In South India, Murphy Halliburton

Publications and Research

The Movement for Global Mental Health has defined the person suffering psychopathology in low-income countries as an abused and suffering subject in need of saving by biomedical psychiatry. Based on fieldwork in Kerala, South India, carried out at psychiatric clinics and a psychosocial rehabilitation centre, this paper examines patients’ experiences of illness, the degree and quality of family support, and attributions made to the role of ‘sneham’, or love, in recovery. The role of love and family involvement may help explain the provocative finding by WHO epidemiological studies that ‘developing’ countries – and India in particular – showed better rates …

Rotavirus A Genome Segments Show Distinct Segregation And Codon Usage Patterns, Irene Hoxie, John J. Dennehy

Publications and Research

Reassortment of the Rotavirus A (RVA) 11-segment dsRNA genome may generate new genome constellations that allow RVA to expand its host range or evade immune responses. Reassortment may also produce phylogenetic incongruities and weakly linked evolutionary histories across the 11 segments, obscuring reassortment-specific epistasis and changes in substitution rates. To determine the co-segregation patterns of RVA segments, we generated time-scaled phylogenetic trees for each of the 11 segments of 789 complete RVA genomes isolated from mammalian hosts and compared the segments’ geodesic distances. We found that segments 4 (VP4) and 9 (VP7) occupied significantly different tree spaces from each other …

A Reference Section For The Otavi Group (Damara Supergroup) In Eastern Kaoko Zone Near Ongongo, Namibia, P.F. Hoffman, Sara B. Pruss, C.L. Blättler, E.J. Bellefroid, B.W. Johnson

Geosciences: Faculty Publications

A reference section for the Otavi Group (Damara Supergroup) in the East Kaoko Zone near Ongongo is proposed and described. The section is easily accessible, well exposed, suitable for field excursions, and well documented in terms of carbonate lithofacies, depositional sequences and stableisotope chemostratigraphy. The late Tonian Ombombo Subgroup is 355 m thick above the basal Beesvlakte Formation, which is not included in the section due to poor outcrop and complex structure. The earlymiddle Cryogenian Abenab Subgroup is 636 m thick and the early Ediacaran Tsumeb Subgroup is 1020 m thick. While the section is complete in terms of formations …

Improvement Of Selection Criteria And Prioritisation For Neoantigen Prediction, Phorutai Pearngam

Chulalongkorn University Theses and Dissertations (Chula ETD)

A tumour-specific neoantigen-based cancer vaccine is a potentially powerful treatment option, which utilises unique mutated peptides from tumour cells to boost the immune response and selectively attack cancer cells. Thus, the characterisation of the specifically targeted peptides that can be selectively recognised by the immune system is essential for this approach. However, a major problem in neoantigen prediction is obtaining false positives, leading to poor outcomes in clinical research and practice. This thesis aims to address some of the computational issues in neoantigen prediction, including developing more reliable statistics for assessing peptide binding to a major histocompatibility complex (MHC) protein …

The Differences In The Width Of Male And Women Maxillary Sinus Seen From Panoramic Radiography In Tribe Students Minang Faculty Of Dental Medicine, Baiturrahmah University, Resti Iswani, Rizki Wulandari, Firdaus, Hamdy Lisfrizal

Journal of Dentomaxillofacial Science

No abstract provided.

Compressive And Tensile Strength Measurement Of Irreversible Hydrocolloid Impression Material Made Of Brown Algae Padina Sp, Nurlindah Hamrun, Rafikah Hasyim, Acing H. Mude, Muhammad Ikbal, Teiza Nabilah, Mutiaranisa Safitri, Fuad H. Akbar

Journal of Dentomaxillofacial Science

No abstract provided.

Salivary Ph, Dental Caries And Body Mass Index (Bmi) In The Middle School Students In Eastern Makassar, Rafikah Hasyim, Dwi P. Wulansari, Karima Q. Mansjur, Nasyrah Hidayati

Journal of Dentomaxillofacial Science

No abstract provided.

The Application Of Systems Science In Nutrition-Related Behaviors And Outcomes Implementation Research: A Scoping Review, Ayron E. Walker, Rachel A. Wattick, Melissa D. Olfert

Faculty & Staff Scholarship

Use of systems science can improve the dissemination and implementation (D&I) process. However, little is known about use of systems science in nutrition D&I research. The purpose of this article is to synthesize the ways in which systems science methodology is applied in nutrition D&I research. Scoping review methodology involved searching 6 academic databases for full-text, peer-reviewed, English articles published between 1970 and 2020 that employed systems science within nutrition D&I research. Data extraction included intervention type, population, study aim, methods, theoretical approach, outcomes, and results. Descriptive statistics and qualitative thematic analysis followed. Thirty-four retained articles qualitatively identified benefits (successful …

Nebraska Anthropologist, Volume 29: 2021, University Of Nebraska-Lincoln’S Anthrogroup

Nebraska Anthropologist

Table of Contents

Sex vs Gender in a Forensic Anthropological Analysis • Erik Schulz…5

China’s Three Gorges Dam: Development, Displacement, and Degredation • Trent Carney…20

Who Counts as a Citizen? Toward an Interdisciplinary Understanding of Statelessness • Cole Kovarik…28

Explanations for Brazil’s Inequality Reduction from 1989 to 2015 • José Cabrera-Schneider…44

Tourism’s Impacts on Local Populations • Morgan Glup ... 51

The Investigator: Demons of the Balkan War- A Book Review • Brianna Petersen…67

What Remains: Bringing America’s Missing Home from the Vietnam War- A Book Review • Erik Schulz…70

ปัจจัยที่มีความสัมพันธ์กับภาวะแขนบวมในผู้ป่วยที่ได้รับการผ่าตัดมะเร็งเต้านมชนิดที่มีการตัดต่อมน้ำเหลือง, ธีรนุช จุดเพ็ชรแจ่ม, ธีรนุช ห้านิรัติศัย, วิไลรัตน์ ประเสริฐ

Journal of Nursing Research, Innovation, and Health

วัตถุประสงค์: เพื่อศึกษาปัจจัยที่มีความสัมพันธ์กับภาวะแขนบวมในผู้ป่วยที่ได้รับการผ่าตัดมะเร็งเต้านมชนิดที่มีการตัดต่อมน้ำเหลือง

รูปแบบการวิจัย: การวิจัยเชิงพรรณนาหาความสัมพันธ์

วิธีดำเนินการวิจัย: กลุ่มตัวอย่าง คือ ผู้ป่วยมะเร็งเต้านมภายหลังได้รับการผ่าตัดมะเร็งเต้านมชนิดที่มีการตัดต่อมน้ำเหลืองมาเป็นระยะเวลา 1 ปีขึ้นไป จำนวน 148 ราย ที่เข้ารับการตรวจรักษา ณ โรงพยาบาลระดับตติยภูมิในเขตบริการสุขภาพที่ 4 จำนวน 3 โรงพยาบาล คัดเลือกด้วยวิธีสุ่มแบบเจาะจงตามเกณฑ์คัดเข้า รวบรวมข้อมูลด้วยแบบสอบถาม 4 ส่วน ประกอบด้วย 1) ข้อมูลส่วนบุคคล 2) อาการที่สัมพันธ์กับภาวะแขนบวม 3) การได้รับข้อมูลเกี่ยวกับภาวะแขนบวม และ 4) พฤติกรรมการลดความเสี่ยงในการเกิดภาวะแขนบวม ซึ่งมีความตรงตามเนื้อหา และค่าสัมประสิทธิ์แอลฟาครอนบาคของแบบสอบถามที่ 2, 3, และ 4 เท่ากับ .88, .82, .88 ตามลำดับ ประเมินภาวะแขนบวมจากการวัดเส้น  รอบวงแขนทั้ง 2 ข้าง จำนวน 6 ตำแหน่ง หากมีความแตกต่างของเส้นรอบวงแขนที่ตำแหน่งใดตำแหน่งหนึ่ง > 2 เซนติเมตร ให้ถือว่ามีภาวะแขนบวม วิเคราะห์ข้อมูลโดยสถิติพรรณนา สถิติสหสัมพันธ์พอยท์ไบซีเรียล การทดสอบไคสแควร์ และฟิชเชอร์เอกซ์แซคท์

ผลการวิจัย: กลุ่มตัวอย่างมีอายุเฉลี่ย 59.52 ปี (S.D.=11.22) ส่วนมากเป็นมะเร็งเต้านมระยะที่ 2  (ร้อยละ 43.2) ระยะเวลาหลังผ่าตัดมะเร็งเต้านมเฉลี่ย 4.44 ปี (S.D.=3.58) พบมีภาวะแขนบวมจำนวน 51 ราย (ร้อยละ 34.5) ปัจจัยที่มีความสัมพันธ์กับภาวะแขนบวม ได้แก่ การได้รับรังสีรักษา (2 =15.37, p < 0.001) รูปแบบการผ่าตัด (2=10.28, p <0.05) และพฤติกรรมการลดความเสี่ยงในการเกิดภาวะแขนบวมโดยรวม (rpb = - 0.298, p < 0.001) นอกจากนี้ การรายงานอาการที่สัมพันธ์กับภาวะแขนบวม มีความสัมพันธ์กับภาวะแขนบวมอย่างมีนัยสำคัญทางสถิติ (rpb = 0.577, p < 0.001)

สรุป: รูปแบบการผ่าตัดและการได้รับรังสีรักษาสัมพันธ์กับการเกิดภาวะแขนบวม ดังนั้นควรวางแผนการพยาบาลเพื่อป้องกันภาวะแขนบวมอย่างเหมาะสมในผู้ป่วยกลุ่มนี้ โดยมุ่งเน้นส่งเสริมพฤติกรรมการลดความเสี่ยงในการเกิดภาวะแขนบวม ร่วมกับการประเมินอาการที่สัมพันธ์กับภาวะแขนบวม

Where Am I?: The Absence Of The Black Male From The E-Suite, Brian Bedford

University of the Pacific Theses and Dissertations

According to current U.S. labor statistics, Black male executives are underrepresented in every major industry in the United States. Common impediments preventing Black males from occupying executive positions include workplace white supremacy, biculturalism, repressive structures, and disparate career development. Using critical race theory as a framework, this basic qualitative study investigated the experiences of eight male executives, five Black and three white, from various industries to understand their perceptions and perspectives on race and racism, and examined their workplace lived experiences to study why there are not more Black males in the e-suite. Moreover, strategies to increase Black male representation …

Effectiveness Of Take-Home Naloxone Programs In Athletic Training: An Evidence-To-Practice Review, Michael J. Palm, Amanda N. Flanscha, Zachary K. Winkelmann

Clinical Practice in Athletic Training

The number of opioid overdoses (ODs) has risen in recent years and has become more complex due to the co-involvement of both prescription and illicit opioid drug use. Provisional programs for take-home naloxone (a medication designed to rapidly reverse opiate OD symptoms) kits have been distributed to combat this potentially fatal epidemic. Although there is strong evidence to support the efficacy of naloxone in the reversal of opiate OD, there is limited evidence to support the efficacy of take-home naloxone (THN) kits. The purpose of this evidence-to-practice review was to summarize a systematic review on the efficacy of THN programs. …