Digital Commons Network^™

Understanding The Musical Theatre Female Mixed Belt Through The Lens Of The Operatic Tenor: A Comparative Study, Courtney Schwalbe

UNLV Theses, Dissertations, Professional Papers, and Capstones

Since its emergence in the early 20th century, the female belt voice has become central to musical theatre, yet it still receives less systematic attention than classical singing in both scholarship and collegiate pedagogy. This document frames the contemporary female belt, especially the high or mixed belt, in dialogue with the Western operatic tenor to demystify belt production for teachers trained in classical vocal pedagogy. Drawing on historical context, voice science, and applied pedagogy, the study compares defining characteristics, vocal challenges, registration, and resonance strategies across the two traditions. Both voices extend chest-dominant qualities above the primary register transition and …

Quantum Sensing Of Magnetic And Thermal Fields Using Nitrogen-Vacancy Centers On Spoof Surface Plasmon Waveguides, Maxwell Stonham

UNLV Theses, Dissertations, Professional Papers, and Capstones

Nitrogen-vacancy (NV) centers in nanodiamonds are solid-state quantum defects capable of detecting magnetic fields and temperature at the nanoscale with high spatial resolution and optical addressability at room temperature. Their spin-dependent fluorescence enables optically detected magnetic resonance (ODMR), a technique widely used for quantum sensing. However, enhancing optical readout efficiency remains a critical challenge for scalable integration and various methods can be used to improve this.

This thesis explores a hybrid quantum sensing platform that integrates NV-based sensing with spoof surface plasmon waveguides designed to enhance optical excitation and emission efficiency through localized spoof plasmon modes supported by subwavelength corrugated …

A Comparison Of Airborne Tree Pollen In The Las Vegas Valley From 2017 – 2021, Asma Tahir

UNLV Theses, Dissertations, Professional Papers, and Capstones

Airborne pollen are a predominant cause of asthma, allergic disease, and respiratory infections. The strong allergenic potential of tree pollen is of a public health concern. Several allergenic trees grow in the Mojave Desert, but not all are native to the region. Concentrations of airborne tree pollen are affected by atmospheric, environmental, ecological, and geospatial factors. Previous research has reported high tree pollen concentrations in the Las Vegas Valley, but long-term comparison studies are lacking. This study measured and compared tree pollen concentrations from five different collection stations in Las Vegas. Pollen samples collected from January 1, 2017, to December …

Modeling The Mojave: A Multiphase, Mixed Methods Phenomenological Investigation Of Novice Understanding Of A Complex Ecological System, Nicole Juliana Thomas

UNLV Theses, Dissertations, Professional Papers, and Capstones

This research explores early college science majors’ conceptions of the Mojave Desert ecosystem as a complex system. A multi-level, explanatory sequential mixed methods design was employed to study college science majors’ understanding of the Mojave Desert ecosystem to better inform science pedagogy. The first level, the quantitative phase of the study, consisted of developing a mathematical representation of twelve ecosystem variables present within the Mojave Desert. The second level, the qualitative phase of the study, consisted of phenomenological semi-structured interviews with 23 early college science majors. The findings of this research suggest that the Mojave Desert operates as a complex, …

Deaf College Students’ Lived Experiences In Pk-16 Education: A Deaf Crit-Informed Qualitative Study, Bridget Catherine Taylor

UNLV Theses, Dissertations, Professional Papers, and Capstones

This qualitative study focused on Deaf, Hard-of-Hearing, and orally Deaf college students, examining Deaf education from the perspective of linguistic and cultural minority students. The study offers theoretical perspectives for researchers, practitioners, and policymakers by examining the lived experiences of students who took part in Deaf education in the United States from PK–16. Deaf Critical Theory (DeafCrit) was the theoretical framework used to analyze the qualitative data.

Enviromental Dna (Edna) Tools For Invasive Mosquitofish (Gambusia Affinis) Surveillance At The Shoshone Pupfish (Cyprinidon Nevadensis Shoshone) Refugium, Yusuf Olamilekan Umar

UNLV Theses, Dissertations, Professional Papers, and Capstones

Spring-fed aquatic ecosystems of the North American Southwest and U.S. Great Basin hosts a plethora of endemic fish species due to the effects of hydrologic fragmentation that resulted from Pleistocene aridification. Threats to endemic fishes worldwide include human intentional or unintentional release of exotic species into their habitats. Early detection of invasive species, while corrective actions are still possible, is critical for management, yet traditional survey methods are often disruptive to sensitive ecosystems, costly, and limited in sensitivity. The recent development of environmental DNA (eDNA) approaches offers powerful alternatives for invasive species monitoring in aquatic systems. In this study, a …

Artificial Intelligence For Smes In The Dominican Republic: A Strategic Neutrosophic Pest-Swot Analysis To Navigate Uncertainty, Karina Pérez Teruel

Neutrosophic Sets and Systems

This study examines the adoption of Artificial Intelligence (AI) in Dominican Republic SMEs through a PESTLE-neutrosophic analysis. PESTLE stands for Political, Economic, Social, Technological, Legal and Environmental factors. Neutrosophic is the Philosophy of Indeterminacy. Therefore, we focus on the factors relative to AI adoption in the Dominican Republic—specifiers to the benefits and drawbacks, as well as, the unknowns of operating with AI—with the intention of illuminating attention. The findings support a phased approach for SMEs to view indeterminacy as an opportunity for competitive advantage through improved operational efficiencies, enhanced customer experience, and more informed decision-making. Ultimately, the results position AI …

Multicriteria Prioritization Of Geospatial Data Sources Using The Neutrosophic Hierarchical Analytic Process In Spatial Ontologies, Manuel Enrique Puebla Martínez

Neutrosophic Sets and Systems

The need for an automatic fusion of heterogeneous, generally untrustworthy geospatial sources into spatial ontologies necessitates prioritization when conflicts arise or lower qualities emerge. Unfortunately, most existing literature does not offer systematic, evaluative, analytical criteria for determining the trustworthiness and polyhedral quality of such sources, which, in turn, causes quality deficiencies in spatial relations of the final product. Here we offer a methodology based on the Neutrosophic Hierarchical Analytic Process to derive the aforementioned prioritization including considerations such as geometric accuracy, existence and accessibility of metadata, frequency of updates, and topological correctness. A calibrated, reliability-testing approach was applied to two …

Soil Fertility Forecasting With Neutrosophic-Based Uncertainty Management, Franklin Parrales-Bravo, Roberto Tolozano-Benites, Dayron Rumbaut-Rangel

Neutrosophic Sets and Systems

This study presents a machine learning framework that combines Random Forest classification with neutrosophic logic to predict soil fertility from 16 physicochemical properties. The model achieves robust classification accuracy (95%) while introducing a novel uncertainty quantification mechanism through neutrosophic truth (T ), indeterminacy (I) and falsity (F ) values derived from prediction probabilities, assigning high-confidence (T = 0.9) to probabilities ≥0.9, indeterminacy (I = 0.3) to borderline cases (0.5≤p

Classification Of Cases Of Animal Abuse In Ecuador Using Indetermsoft And C4.5 Algorithms, Viviana Del Rocío Marfetan Marfetan, Lesly Gissela Tipanguano Chicaiza, Styven Andrés Pila Chicaiza, Estephany Monserrath Ojeda Sanchez

Neutrosophic Sets and Systems

This dissertation aimed to determine the classification of animal abuse within Ecuador by severity, context, and solution through the application of IndetermSoft and the statistical-neutrosophic C4.5 algorithm to classify the uncertainty associated with judicial and administrative efforts for animal protection for domestic dogs and cats. The approach was qualitative and documentary, analyzing judicial sentences, citizen complaints, and municipal ordinances within the three largest Ecuadorian cities of Quito, Guayaquil, and Cuenca to acquire the determination of classifications of animal abuse, subsequent sanctions, and follow-ups. A modeling of IndetermSoft ensembles assessed the indeterminacy of subsequent actions, and inputted into IndetermSoft and the …

Designing Optimal Routes For Mobile Prenatal Care Clinics Using Neutrosophic Cognitive Maps, Mónica Gabriela Chachalo Sandoval, Evelyn Paulina Chacha Ochoa

Neutrosophic Sets and Systems

This manuscript examines the routing of mobile prenatal clinics in Ecuador, focusing on maternal and infant health in vulnerable, hard-to-reach areas. This assessment is significant because even with new developments geographically expanding access to mobile prenatal clinics, there remain accessibility gaps for vulnerable women located in hard-to-reach, topographic regions where it's uncertain if they truly need services or can assess whether they can travel to a clinic. While previous studies sought to assess the potential for newly mobile units and coverage, few studies have been found to assess new routes through accessibility uncertainty and villages with varying demand for access …

Neutrosophic Assessment Of Ventilatory Dynamics: A Model For Performance Optimization, Darvin Manuel Ramírez Guerra, Yusleidy Marlie Gordo Gómez, Noel Batista-Hernández

Neutrosophic Sets and Systems

This study expands upon neutrosophics by establishing a novel neutrosophic model for the evaluation of ventilatory capabilities of Peruvian league 1 soccer professionals in response to an urgent need for such scientific studies to accommodate uncertainty associated with generally physiological measurements. The union of neutrosophic statistics principles with spirometric results and cardiopulmonary exercise testing produces a neuto model that effectively operates at 93.2% accuracy measured by 3 factors—(1) identification of asymptomatic ventilatory deficiencies, (2) assessment of respiratory compensatory thresholds reached during play, (3) participant identification for ranking by neutrosophic determination of results and application of aggregation operators. Application of this …

Modeling The Rehabilitation Of Offenders In Domestic Violence Using A Hybrid Neutrosophic-Logistic Approach To Reduce Recidivism, Johanna Estefanía Calle Imbaquingo, Karen Milagros Díaz Salambay, Jordy Alexis Vargas Yumbo, Kevin Christopher Carrasco Azogue, Otto F. Von Feigenblatt

Neutrosophic Sets and Systems

This dissertation seeks to determine if criminal suspension—per Article 651.3 of National Criminal Code (COIP)—for domestic violence offenders in Ecuador actually reduces recidivism through effective rehabilitation. This study is significant for comprehension of offender mentality and subsequent ability to accept criminal punishment to reduce recidivism for prolonged victim safety and better acts of authority in a country where domestic violence is still a major social concern. While the existing literature has studied aspects of restorative justice, very few articles have explored the predicating factors of recidivism and the lack of judicial observation and databases due to a neoteric nature and …

Intercultural Education From Ancestral Logic: Application Of The Ayni Method Multi-Neutrosophic To Strengthen Mixed Methodology In The Waorani Community, Johanna Estefanía Calle Imbaquingo, Karen Milagros Díaz Salambay, Jordy Alexis Vargas Yumbo, Kevin Christopher Carrasco Azogue, Otto F. Von Feigenblatt

Neutrosophic Sets and Systems

Research aimed at determining the Ayni method Multi-Neutrosophic by which a successful blended learning experience enhances multicultural education respecting Ancestral Logic of the Waoranis to create a hybridization of Ancestral Logic and institutional and classroom learning to preserve their cultural identity. A qualitative descriptive-legal research approach was utilized. The results of the documentary analysis included requirements from Ecuador (Constitution, ILO Convention 169) and semi-structured interviews with Waorani leaders and teachers, Triangulation through participant observation of the educational activities taught in the Waorani community. The Ayni method Multi-Neutrosophic was cultural reciprocity and neutrality established through indeterminacies in the blended Ancestral teachings …

Technarrative Model (Ntm) For The Symbolic-Emotional Evaluation Of Architectural Space: A Neutrosophic Multiperspectivism Approach, Jesús Rafael Hechavarría-Hernández, Ana María Padrón-Medina, Erika Ascencio Jordán

Neutrosophic Sets and Systems

This research answers the need to evaluate an architectural space from a non-technical standpoint relative to its symbolism/emotion charge that is not taken into account by the design/planning of such public spaces. This research problem is sociologically relevant as today; architecture does not only dictate the layout of the physical world but also the group existence, sensitivity to experiences and modes of social appropriation. Yet the state-of- the-art literature provides purely professional and empirical avenues of investigation driven by economic/aesthetic value with no pathway for understanding appreciation of ambiguity and the multiple perspectives at play. Thus, a Neutrosophic Technarrative Model …

Study Of Victimization And Perception Of Insecurity In Ecuador: Application Of Hybrid Models With Logistic Regression, Machine Learning, And Neutrosophy, Lorenzo Cevallos-Torres, Mauro M. F. Mediano

Neutrosophic Sets and Systems

Given the victim's rising profile in contemporary victimology and criminology, this study examines victimization and the impact of perceived insecurity, paying particular attention to the situation in Ecuador, where reports of crime and violence in urban areas are on the rise. The overarching goal is to create a reliable model for victimization risk assessment that may also serve as an analytical tool for public policymaking and preventative efforts. One step is to build a classic logistic regression model that takes into account variables like age, sex, education level, occupational category, and level of physical activity. The goal is to understand …

Hyperbolic Geometry And Neutrosophic Trigonometry: A Unified Approach To Uncertainty Management In Geometric Spaces, Yismandry González Vargas, Diana Padrón Carrasco

Neutrosophic Sets and Systems

This paper addresses the challenge of modeling uncertainty in hyperbolic geometry, where non-Euclidean properties, such as angle sums in triangles smaller than 180°, complicate traditional trigonometric calculations. The relevance of this topic lies in its application in fields such as cosmology, robotics, and signal processing, where curved spaces and imprecision are common. Although the literature has explored fuzzy geometry and trigonometry under uncertainty, it lacks a framework that integrates negative curvature with explicit indeterminacy. To overcome this gap, a methodology is proposed that combines hyperbolic geometry with neutrosophic trigonometry, using neutrosophic sets (T, I, F) to represent angles and calculate …

Scholarai Scholarly Article Search Strategies With The Ayni Method Multi-Neutrosophic For Ethical Information Management In Ai, Ennio Jesús Mérida Córdova, Elizabeth Esther Vergel Parejo, Raúl López Fernández

Neutrosophic Sets and Systems

In a digital world where scientific articles are published at an unprecedented rate, an additional step in the research process to facilitate discovery is an effective search and filtering for worthwhile articles. Thus, this study aims to solve the following research problem: how to search for scientific articles using artificial intelligence (AI) while applying ethical considerations and ancestral knowledge? The topical relevance is that as AI is a great vessel to seek potentially accessible knowledge, searches can be guaranteed through accuracy, inclusivity, and ethics. While many studies exist on the topic of AI related to searching, few, if any, extend …

Neutrosophic Framework For Violence Prediction In Urban Environments: A Hybrid Approach Integrating Fsqca And Machine Learning For Public Safety Decision-Making, Alfonso Aníbal Guijarro Rodríguez, Tatiana Mabel Alcívar Maldonaldo, Leili Genoveva Lopezdominguez, Matilde Briggitte Silvers Briones, John Henry Fernández Vera

Neutrosophic Sets and Systems

In the context of citizen security, predictive systems for urban violence are essential for preventive decision-making and the efficient allocation of security resources. This work proposes an innovative neutrosophic framework that integrates Fuzzy Qualitative Qualitative Comparative Analysis ( fsQCA ) with Machine Learning algorithms to predict urban violence patterns in complex and uncertain environments. Neutrosophic logic allows handling the uncertainty, imprecision and inconsistencies inherent in social data, while fsQCA identifies complex causal configurations that traditional statistical methods cannot capture. The developed hybrid model combines Random Forest, fuzzy logic, and neutrosophic logic are used to process homicide data, demographic variables, and …

Faim: Fuzzy‑Neutrosophic Academic Integrity Model For University Students, Elsy Rodriguez Revelo, Lorenzo Cevallos Torres

Neutrosophic Sets and Systems

The FAIM (Fuzzy-Neutrosophic Academic Integrity Model) is a novel approach developed to assess academic integrity among university students under conditions of uncertainty. This model emerged as a response to the challenges posed by the sudden shift from face-to-face to virtual education during the COVID-19 pandemic. This environment saw a notable increase in dishonest academic behavior. FAIM integrates fuzzy logic and neutrosophic reasoning to capture the complexity and indeterminacy of students’ conduct. Key variables associated with academic dishonesty—motivation, justification, and opportunities—were examined across three simulated scenarios. The results validated FAIM’s capacity to differentiate integrity levels within the student population effectively. Unlike …

Dialectics Of Inclusion In Physical Education: A Neutrosophic N‑Alectic Approach To The Creation And Communication Of Digital Content, Giceya De La Caridad Maqueira Caraballo, Lenin Esteban Loaiza Dávila, Germán Rafael Rojas Valdés

Neutrosophic Sets and Systems

This is how digital creations can foster inclusion in physical education, one of the more applicable and challenging aspects of today's diverse school realities. This study is significant, considering that we live in a digital world that requires the balance of such creations to promote equitable environments for increasingly functional, diverse school populations. While previous studies focused on inclusion in the physical education arena at school, none have studied the field based upon the uncertainties and discrepancies associated with communication and pedagogical endeavors, let alone from a digital perspective. Thus, the gap in the research is filled by the Neutrosophic …

Identification Of Gaps In Ecuadorian Inclusive University Education Through Plithogenic Offsets, Genesis Carmen Alcívar Junco

Neutrosophic Sets and Systems

Although Ecuador has made strides in regulation, the barriers to inclusive universities reveal a fragmented vision for access and non-termination of special educational needs (SEN) persons. This research aims to assess the impact of physical, academic, and political-institutional barriers on successful inclusion. The importance of this study stems from the need to promote equality in education, a fundamental trait in equitable and fair societies where an increasingly diverse population renders diversity a value. Scholars note barriers regarding spaces and human resources; however, few touch upon the ambiguity and uncertainty of perceptions from all educational stakeholders. Thus, a mixed-method design approach …

Modeling Numerical Thinking In Second-Year Students Using Neutrosophic Cognitive Maps In Game-Based Learning, Nayade Caridad Reyes Palau, Amable Nelly Hodelín, Elizabeth Esther Vergel De Salazar, Lidia Carmita Pucha Medina, Mariela Alexandra Flores García

Neutrosophic Sets and Systems

This problem is a development of numerical thinking of second course Basic General Education students where insufficient understanding of digits and little enthusiasm obstructs proper learning. The topicality of the problem is relevant since understanding numbers since early age allows for proper academic growth and task oriented problem-solving success in the everyday life—it is needed in a quite strict setting that allows for great logical-mathematical skills. The previous solutions did not meet the requirements of recent studies conducted in the field of games learning, as they did not integrate the uncertainly that reflected the cognitive developments of children, nor did …

Strengthening Reading Comprehension Through Affective Communication And Artificial Intelligence With Validation By Neutrosophic Numbers, Giselle Rodríguez Caballero, Rudy García Cobas, Elsy Rodríguez Revelo, Nidia María Cumbicus Castillo, Piedad Doraliza Cordero Cueva

Neutrosophic Sets and Systems

This investigation explores whether emotional communication empowered by artificial intelligence tools is needed for pedagogical integration for reading comprehension for Third Graders at Santiago Fernández García Educational Unit. Through Teacher interviews, classroom observations and pedagogical assessments, the investigator uncovered methodological insufficiencies that not only hinder the literal aspects of reading comprehension but also interpretative and critical aspects. Teachers hold a fortuitous upper hand regarding these advancements; however, test results show non-sufficient didactic planning geared toward emotional awareness strategy developments through artificial intelligence. Suggested artificial intelligence developments in this area show to be text generators or emotional detectors; however, this is …

Automated Ai Validation Of Neutrosophic Plithogenic Hypotheses In Multigrade Literacy Improvement, Isaac Roger Martínez, Débora Lucia Ponce Rivera, Maryuri Yvonne Guale Gómez, Rudy Garcia Cobas, Carlos Roberto Humanante Cabrera

Neutrosophic Sets and Systems

Literacy is acquired in multigrade classrooms in complicated scenarios because of varying literacy competencies and abilities and varied resources and materials. Thus, it's hard to determine if certain teaching interventions work. This is also a growing concern, a timely consideration, because as the institutions try to better the Quality of Education and prevent learning lags for multivariate classrooms are concerned. Yet the literature contains gaps where no direct attempt to stabilize teaching interventions is made despite the findings of many studies generating didactic interventions through the proceedings. Thus, this study fills the gap with an approach based upon hypothesis generation …

Breaking Barriers: Understanding Factors Constraining Women’S Career Choices And Progression In The South African Construction Industry, Abimbola Olukemi Windapo, Olugbenga Timo Oladinrin, João Alencastro, Dineo Mbekwa, Christiana Ekpo, Muhammad Qasim Rana, Amanda Filtane

School of Art, Design and Architecture

Purpose – This paper examines the barriers constraining women's career choices and progression within the South African construction industry. Design/methodology/approach – The study employed a mixed-methods research approach, utilizing a questionnaire survey of construction industry workers listed in the Construction Professions Register, the Builders Collective and the Housing Assembly Organization. It also used interviews to validate the quantitative data. The data collected were analysed using descriptive and inferential statistics, including factor analysis. Findings – The study found that 39 of the 46 barriers identified have normalized values greater than 0.5 and, therefore, are classified as critical. From a ranking perspective, …

Roots Of The Human Psyche: The Spiritual Connection Of Nature With The Mind, Dania Hussain Abdulmunem, Nadia Ali Ismael

Alustath Journal for Human and Social Sciences

Seamus Justin Heaney (1939-2013) was intensely engaged in nature in a way that differed from the usual concept of nature representing beauty, love, and romance. Heaney's role in portraying nature is unique. Describing nature from a deeper perspective reveals what nature hides in terms of darkness and violence. This image encourages people to contemplate more deeply because beauty may conceal a lot of sadness and grief. The poet intends to reflect on the events of the conflicts in Ireland and around the world through nature. Just as nature conceals darkness, so does the individual conceal the inner meaning of his …

Consumer Lessons From A Pandemic, Nicole J. Olynk Widmar, Michael L. Smith, Erin Robinson

Purdue University Press Books

What did we learn about consumer behavior when the world was turned upside down due to COVID-19? Consumer Lessons From a Pandemic examines how a global crisis exposed and reshaped the values, priorities, and decision-making patterns of everyday people. From disrupted routines to supply-chain shocks, this volume explores the consumer behaviors that emerged in response to extreme uncertainty and how those behaviors continue to evolve. Topics include pandemic-induced grocery spending shifts, the importance of consumer trust, lessons from the infant-formula shortage, and the rise of remote work both as a preference and a negotiation point.

Radiogenomic Profiling Of Prostate Tumors Prior To External Beam Radiotherapy Converges On A Transcriptomic Signature Of Tgf-Β Activity Driving Tumor Recurrence, Anson T. Ku, Uma Shankavaram, Shana Y. Trostel, Hong Zhang, Sumeyra Kartal, Houssein A. Sater, Stephanie A. Harmon, Nicole V. Carrabba, Yang Liu, Hyunnam Ryu, James A. Proudfoot, Boon Hao Hong, Bradford J. Wood, Peter A. Pinto, Peter L. Choyke, Mack Roach, Howard M. Sandler, Stephanie L. Pugh, Kenneth L. Zeitzer, Lucas C. Mendez, Nirav S. Kapadia, William A. Hall, Anand B. Desai, Radka S. Stoyanova, Alan Pollack, Elai Davicioni, Melvin L. K. Chua, Baris Turkbey, Adam G. Sowalsky, Deborah E. Citrin

Einstein Health Papers

PURPOSE: Clinical risk grouping based on PSA, tumor grade, and disease extent guides treatment intensity for localized prostate cancer. However, many patients with intermediate- or high-risk disease treated with external beam radiotherapy (EBRT) and androgen deprivation therapy (ADT) still develop biochemical recurrence (BCR). Early identification of patients at high risk for BCR could enable personalized treatment strategies.

EXPERIMENTAL DESIGN: We prospectively enrolled 29 patients with intermediate- or high-risk prostate cancer undergoing EBRT and ADT. Pretreatment biopsies (n = 60) underwent whole-transcriptome microarray and whole-exome sequencing. Patients received multiparametric MRI at baseline and 6 months after treatment, with a median follow-up …

The Effectiveness Of Storytelling As A Sleep Aid For Children With Adhd And Sleep Difficulties, Boonchitchaya Chamnanphai, Tippawan Hansakunachai, Issarapa Chunsuwan

Asian Medical Journal and Alternative Medicine

Introduction: Sleep-related problems among children with attention deficit hyperactivity disorder (ADHD) is common. Behavioral interventions are the first-line treatment for sleep problems in children with ADHD. Meditation has gained interest as an alternative treatment for sleep problems.

Objectives: To determine whether a sleep intervention could reduce sleep problems, improve ADHD symptoms and enhance parental mental health.

Methods: A randomized controlled trial (RCT) of 52 children (4–12 years) with ADHD and sleep problems was undertaken. The 2 week intervention covered sleep hygiene, daily Line messages and meditation stories. The control group received sleep hygiene and usual care. Outcomes were measured using …