Digital Commons Network^™

Student Misbehaviors, University Instructors’’ Mental Health, And Trauma Management: A Phenomenological Study, Abdul Karim, Bineeta Rahman, Muhammad Kamarul Kabilan

The Qualitative Report

The present study aimed to unpack student misbehaviors that instructors face inside the university campus. It also intended to unfold how student misbehaviors affect instructors’ mental health and how they overcome the trauma engendered by student misbehaviors. Adopting a phenomenological approach, we explored the phenomenon to answer the research questions by conducting semi-structured interviews with six teachers. Through a thematic analysis, we found that university instructors experience various misbehaviors presented by students inside the university campus, and as a result, their mental health suffers. However, instructors tend to ignore their mental health and focus on academic activities to overcome the …

Generating A Reflexive Ai-Assisted Workflow For Academic Writing, Corey W. Johnson, Trena M. Paulus

The Qualitative Report

Digital research workflows are study designs that intentionally consider the use of technology in meaningful and reflexive ways. While most scholars use digital tools and spaces in their research process, doing so has consequences that are infrequently considered in an intentional way. Especially in this age of generative AI, technology integration into research studies will have an even greater impact and consequences on study outcomes. This paper documents one digital research workflow, the academic writing process, to demonstrate how inviting generative AI to be a writing partner can be done in a reflexive manner. Drawing on Paulus and Lester’s (2023) …

Phantom Jam Sybil Attack In Connected Vehicular Networks, Ahmed Ali Elamin Mohamed

Masters Theses and Doctoral Dissertations

Vehicular Ad-hoc Networks (VANETs) are vulnerable to Sybil attacks, mostly due to the lack of encryption in BSMs. In VANETs, multiple digital certificates (pseudonyms) are assigned to each vehicle to ensure their privacy. However, malicious nodes can exploit these pseudonyms to create ghost vehicles, inducing fake traffic jams and disturbance to other vehicles which may lead to accidents. In this work, we have developed the first sophisticated sybil attack, in which an attacker uses legitimate pseudonyms to create multiple ghost vehicles. These ghost vehicles transmit realistic kinematic data, using trajectory formulas and road maps. Additionally, the ghost vehicles randomly simulate …

Democratizing Plant Biodiversity Data With Coefficients Of Conservatism For The Vascular Flora Of Tennessee And Kentucky, Sevyn Brothers

Masters Theses and Doctoral Dissertations

Floristic Quality Assessments (FQAs) measure an ecosystem's quality and can be applied to any ecosystem. FQAs consist of two parts: a species checklist and each species’ coefficient of conservatism (c-value). C-values are integers that describe a species’ tolerance to anthropogenically disturbed habitats. C-values should be applied to species per ecoregion; however, this can be difficult due to resource allocations, and therefore it is more common to apply c-values at the state level. Tennessee and Kentucky (TNKY) share many native species and ecoregions and lacked published c-values, putting TNKY in a prime position for combined c-value assignment. C-values were assigned to …

At-Risk And Online: Parent Perceptions Of At-Risk Learner's Supports In A Fully Online School, Dennis Beck

Curriculum and Instruction Faculty Publications and Presentations

At-risk students face a variety of challenges that encompass cultural, social and environmental contexts and identities. Full time virtual schools offer help for at-risk students through the provision of a personalized learning option where students can catch up with past work or complete school work in a non-traditional environment. The purpose of this study was to understand parent perceptions of at-risk learner’s affective, behavioral, and cognitive engagement supports in a fully online school. Although research exists on at-risk learners in blended environments, this topic has not yet been fully explored for fully online schools. We need a much fuller understanding …

Hitch Cart “Landing Gear”, Rebekah White, Jose Raygoza, Randy Hernandez, Brandon Leon

Mechanical Engineering

This report aims to allow our sponsor, to review our design process of the Hitch Cart Landing Gear Prototype. In the design overview section of this report, we discuss the primary design modifications we made to the wheel mechanism of the existing hitch cart prototype, including the addition of the ACME screws and the folding brackets. This allows our sponsor to see the intended improvements made to the past prototype and understand the primary goal of our project. Then, in the implementation section, we cover the entire manufacturing process to allow our sponsor to understand what manufacturing steps must be …

Pseudo Gps For Romi, Emmanuel Baez, Owen Guinane, Gabriel Coria, Conor Schott

Mechanical Engineering

The Pseudo-GPS system for Romi robots addresses the need for precise real-time location tracking in Cal Poly's Mechatronics lab. This project, developed by Emmanuel Baez, Gabriel Coria, Owen Guinane, and Conor Schott, under the guidance of instructor Charlie Refvem, provides a proof-of-concept system to enhance the Romi robots' geolocation capabilities for advanced robotic algorithms.

The proposed system uses a Raspberry Pi 4 equipped with a Pi camera module and ArUco markers to track the position and orientation of Romi robots within a lab environment. Custom 3D-printed stands secure markers on the robots, and a designated origin marker defines the coordinate …

Association Of Monthly Income With Psychological Condition In Patients Undergoing Endodontic Treatment For Irreversible Pulpitis, Fadil A. Arifin, Yuhei Matsuda, Nurhayaty Natsir, Takahiro Kanno

Journal of Dentomaxillofacial Science

Objective: This study examined the association between monthly income and the characteristics of patients receiving endodontic treatment, considering general and dental health status, Health-Related Quality of Life, and Oral Health-Related Quality of Life using the Short-Form (SF-8) and newly developed Oral Health-related Endodontic Patient’s Quality of Life (OHQE) scales in patients with irreversible pulpitis and pulp necrosis.

Materials and methods: This study comprised 131 patients diagnosed with irreversible pulpitis and pulp necrosis. Data regarding the patient’s background, medical history, and dental history were collected. Monthly income was divided into a lower group (<210 USD) and a higher group (³210 USD). The SF-8 and OHQE scales were administered three times to each patient: before and after root canal treatment; and two weeks following root canal treatment. Multivariate logistic regression analysis was employed to assess the predictive outcome of both groups.

Results: The patients consisted …

Evaluation Of Calcium, Fluoride, And Phosphate Ion Release Of Three Bioactive Resins In Ph-Cycling Solution, Dewi Puspitasari, Agung S. Wardhana, Indri I. Tari, Romadhona Setiyoly, Ariska, Sherli Diana, Muhammad Yi. Nahzi, Diana Wibowo, Yosi K. Eriwati, Priyawan Rachmadi

Journal of Dentomaxillofacial Science

Bioactive resin containing calcium, fluoride, and phosphate in the formulation may promote remineralization in email and dentin. This study aimed to evaluate the amount of calcium, fluoride, and phosphate ions released from composite resin, alkasite, and giomer when stored in a pH-cycling solution. Ninety specimens (diameter 15 mm & thickness 1 mm, n=5/group) were fabricated with bioactive composite resin (Activa), alkasite (Cention N), and giomer (Beautifil II). Half of the specimens were immersed in demineralizing solution of pH 4.4 and remineralizing solution of pH 7 alternating constantly for pH-cycling. In contrast, the other half of the specimens were immersed in …

Evaluation Of A Non-Metallic Dual-Port Expander For Intensity Modulated Proton Therapy, Kristen Mcconnell, Zachary Fellows, James Kraus, Mauricio Acosta, Joseph Panoff, Eduardo Pons, Alonso Gutierrez, Andrew Wroe

All Publications

Purpose: To provide a methodology for characterization of the technical properties of a newly developed non-metallic tissue expander for intensity modulated proton therapy.

Methods: Three tissue expanders (AlloX2-Pro: plastic-dual port, AlloX2: metal-dual port, and Dermaspan: metal-single port) were deconstructed, CT-scanned, and modeled in RayStation12A. A 165 MeV single spot was used to create RayStation dose planes, and the integrated depth dose profiles were calculated and the DR90 extracted to predict water equivalent thickness (WET). These predictions were compared to measurements taken with an IBA Giraffe MLIC. Native, water, and fully modelled overrides were compared for the AlloX2 Pro to quantify …

Evaluation Of A Non-Metallic Dual-Port Expander For Intensity Modulated Proton Therapy, Kristen Mcconnell, Zachary Fellows, James Kraus, Mauricio Acosta, Joseph Panoff, Eduardo Pons, Alonso Gutierrez, Andrew Wroe

All Publications

Purpose: To provide a methodology for characterization of the technical properties of a newly developed non-metallic tissue expander for intensity modulated proton therapy.

Methods: Three tissue expanders (AlloX2-Pro: plastic-dual port, AlloX2: metal-dual port, and Dermaspan: metal-single port) were deconstructed, CT-scanned, and modeled in RayStation12A. A 165 MeV single spot was used to create RayStation dose planes, and the integrated depth dose profiles were calculated and the DR90 extracted to predict water equivalent thickness (WET). These predictions were compared to measurements taken with an IBA Giraffe MLIC. Native, water, and fully modelled overrides were compared for the AlloX2 Pro to quantify …

Latent Characterization Of The Complete Batse Gamma-Ray Bursts Catalogue Using Gaussian Mixture Of Factor Analysers And Model-Estimated Overlap-Based Syncytial Clustering, Fan Dai, Ranjan Maitra

Michigan Tech Publications

Characterizing and distinguishing gamma-ray bursts (GRBs) has interested astronomers for many decades. While some authors have found two or three groups of GRBs by analysing only a few parameters, recent work identified five ellipsoidally shaped groups upon considering nine parameters T50, T90, F1, F2, F3, F4, P64, P256, P1024. Yet others suggest subclasses within the two or three groups found earlier. Using a mixture model of Gaussian factor analysers, we analysed 1150 GRBs, that had nine parameters observed, from the current Burst and Transient Source Experiment (BATSE) catalogue, and again established five ellipsoidal-shaped groups to describe the GRBs. These five …

The Back Page: The Personal Touch Makes The Difference, Riley Schaff D.D.S.

The Journal of the Michigan Dental Association

Dr. Riley Schaff discusses the importance of personal connection in engaging new dentists with organized dentistry. Drawing from his own experience of being personally invited to chair a New Dentist Study Club, he emphasizes that direct, personal outreach is more effective than digital communication in encouraging participation among early-career dentists.

The article highlights ongoing efforts at the state level to increase engagement, including enhanced presence at local events and networking programs. However, Schaff argues that grassroots efforts at the local component level are crucial for significant change in membership rates. He concludes that personal engagement from existing members is essential …

What You Must Know: Retention And Destruction Of Dental Records And Your Most-Asked Questions About Dental Records, Daniel Schulte Jd

The Journal of the Michigan Dental Association

An overview of the basic information about dental records, including retention and destruction, that you and your staff should be aware of, provided by MDA Legal Counsel Dan Schulte, J.D. Plus, for your reference, answers to the questions Michigan dental offices are asking about dental record retention, access, release, and destruction.

Dental records are vital for patient care, legal compliance, and professional practice management. Michigan law mandates retaining dental records for a minimum of 10 years, ensuring their confidentiality, accessibility, and integrity. Destruction of records less than 10 years old requires patient notification and authorization, while those over 10 years …

Experimental Investigations Of Wind Shear From Passing A Vehicle, Hamid Rahai, Assma Begum, Jeremy Bonifacio, Ryan Moffit

Mineta Transportation Institute

Wind energy can be harnessed for various commercial and transportation-related applications. This study assessed experimentally the potential of capturing wind energy from the passage of vehicles for electric power generation. Both wind tunnel experiments and field tests were performed. The wind tunnel experiments were performed in an open-circuit low-speed wind tunnel at a free-stream mean velocity of 23 m/s. Five PVC pipes placed adjacent to the wind-blowing domain were used to simulate the columns under a freeway overpass. A scaled Ahmad body (simplified car body model) was used as the vehicle. The spanwise distance between the Ahmad body and the …

Right Turn On Red: Energy-Saving Measure Or Unsafe Maneuver?, Bruce Appleyard, Anurag Pande, Joseph Gibbons, Shams Tanvir, Megan Honey, Nell Ahangarfabrik, Mario Carbajal, Madison Swayne

Mineta Transportation Institute

There is a growing interest in prohibiting right turn on red (RTOR) policies in the name of pedestrian and bicycle safety but there is not enough research on the subject to help agencies make informed decisions. When Congress passed the Energy Policy and Conservation Act of 1975, they included a provision requiring states to permit right turns on red lights as an energy-saving measure to receive federal assistance for mandated conservation programs. Since 1980, all states have permitted right turns on red as a general rule. More research is needed to help guide state policies that can support jurisdictions in …

An Assessment Of The Viva Callesj Event In San Jose, Richard Kos, Adam Cohen

Mineta Transportation Institute

This report evaluates the Viva CalleSJ event held in San Jose, California, on September 8, 2024. As a celebrated open-streets initiative, Viva CalleSJ temporarily transformed six miles of city streets into car-free zones to encourage active transportation, foster community engagement, and support local businesses. This assessment employed a mixed-methods approach, including participant surveys, interviews with stakeholders, and observational analysis. Key findings highlighted the event’s success in attracting a diverse audience, promoting physical activity, and driving economic benefits. Over 50% of attendees arrived by bicycle, and 77.7% planned to spend money at the event, averaging $54.23 per participant. Community-building impacts were …

Zero-Emission Buses In The Us: Understanding And Addressing Market And Policy Challenges, Leah Foecke, Zachary Karson, Thomas Tiberghien

Mineta Transportation Institute

As the US public transportation sector accelerates its shift from fossil fuels to zero-emission alternatives, transit agencies and transit bus manufacturers alike face significant uncertainty and instability. This report provides policymakers with updated insights into the US transit bus market, focusing on key industry dynamics, financial challenges with zero-emission bus (ZEB) acquisition, technological obstacles in deployment, and regulatory issues. The research relies on interviews with stakeholders, a detailed review of existing literature, and an analysis of US public transit data. Key findings reveal ongoing challenges related to costs, supply, reliability, and workforce development, all of which hinder the adoption of …

Potential Effect Of Produced Water Discharge On Surface Water: Lower Atascosa River Study, Alejandro Mendietta

Water Resources Science and Technology Theses and Graduate Research Reports (Archived)

This study investigates the potential impact of an approved produced water discharge permit in the Atascosa River. Water samples were collected from a test site on the Atascosa River and analyzed for key water quality parameters such as chloride, total dissolved solids, sodium, calcium, strontium and other ions. These results were compared to historical data from the local river authority to assess any significant changes in water quality following the permit's approval in April 2024. Statistical analyses, including averages and t-tests, were conducted to determine whether the current ion concentrations differed significantly from historical levels. While an increase in concentrations …

Detection Of Per- And Polyfluoroalkyl Substances In Public Water Supply: San Antonio Case Study, David Arambula

Water Resources Science and Technology Theses and Graduate Research Reports (Archived)

This research investigates the detection and influence of per- and polyfluoroalkyl substances (PFAS) in the San Antonio water supply system, focusing on two contaminated water entry points sourced from the Edwards Aquifer. Sampling and statistical analyses compare urbanization, geologic features, and groundwater quality between contaminated and noncontaminated sites. Key findings include statistically significant differences in fault lengths, impermeable surfaces, and urban development. Although direct correlations between PFAS contamination and groundwater quality parameters like nitrate and conductivity remain inconclusive due to limited data, the study indicates urbanization's potential role in exacerbating PFAS infiltration through sensitive geological features. Insights from this research …

Tac-It An Affective Computing User Interface Design, Andrew Biron

Theses and Dissertations

TAC-IT affective computing user-interface design is an independent computer peripheral that is a tool to be utilized to obtain a user’s self-reported emotional state in real-time. Doctor Rosalind Picard first coined and used the term affective computing in her paper Affective Computing [Picard, R. (1995)]. Affective Computing is defined as the study and development of systems and devices that can recognize, interpret, process, and simulate human affects. It is an interdisciplinary field spanning computer science, psychology, and cognitive science. Since that time, areas of research have expanded exponentially, and areas of interest include how to trigger emotions in a test …

Mathematical Model For Helically Propagating Spatially Multiplexed Mimo Channels Inside Single Core Optical Fibers, Ibrahim Barka

Theses and Dissertations

It all started when our curiosity was sparked by observing light beams from a Multi-Channel Laser Source precisely coupled into a single-core optical fiber positioned on an optical bench in the lab. The multiplexed light beams, characterized by different spatial azimuthal angles, were guided by the fiber, tracing helical paths and producing a bright central spot with concentric rings depending on the launched angles, a phenomenon we came to call Spatial Domain Multiplexing (SDM). Conventional concepts of hybrid and LP modes couldn’t fully explain the behavior of SDM modes, leading us to the question of the types of field configurations …

Intent Visualization In Human-Agent Teams, Rahul Tushar Mehta

Theses and Dissertations

Despite advances in autonomous systems, effective collaboration between humans and intelligent agents remains a significant challenge, particularly in shared-control scenarios. This study investigates how intent visualization affects human-agent collaboration in telecollaboration scenarios, examining its impact on team performance, operator trust, and workload. Using a custom simulation environment and Wizard-of-Oz methodology, we conducted an experiment with 13 participants who completed exploration tasks under two conditions: a baseline interface and an enhanced interface with intent visualization. Results showed that while intent visualization did not significantly improve objective performance metrics, it led to a 22.6\% increase in explicit disagreements between operators and the …

Challenging Myths & Addressing Intimate Partner Sexual Violence In Lgbtq+ Relationships, Nora K. Whitten

SPARK Symposium Presentations

Intimate partner violence (IPV), including intimate partner sexual violence (IPSV), is a public health crisis that disproportionately affects members of the LGBTQ+ community. This paper draws upon related, though limited, research to identify the five prevalent myths surrounding IPSV in LGBTQ+ relationships, addressing the following misconceptions: 1) IPSV can only occur in heterosexual relationships, 2) IPSV in LGBTQ+ relationships is not as severe, 3) Women cannot commit acts of sexual violence, 4) The more “masculine” partner is always the perpetrator, and 5) IPSV is a “mutual fight” among partners of the same sex. These myths perpetuate victim-blaming, minimize the severity …

The Viability Of Styrofoam Beads In Concrete Mixtures, Colin Edward Sykes

Construction Management

This experiment revolved around the idea that an aggregate replacement in a concrete mixture could not only maintain its structural integrity but increase its sustainability as well. This idea was formulated into the experiment of embedding Styrofoam beads into concrete. The outcome of this experiment showed the compressive strength of the concrete increased the greatest with the substitution of Styrofoam beads for fine aggregate up to 20%. This 20% Styrofoam replacement mixture exhibited an 189% increase in compressive strength when compared to the control group in the third week of testing. In addition to this impressive compressive strength, the weight …

A Comparison Of Mass Timber Perceptions Among Construction Professionals Over Time, Josh A. Higginson

Construction Management

Mass timber is a relatively new construction building material consisting of large-scale engineered wood products such as cross-laminated timber (CLT) and glue-laminated timber (glulam). It is gaining attention as a sustainable alternative to traditional steel and concrete, offering benefits such as reduced carbon emissions and enhanced aesthetic appeal. Despite being used on notable projects recently, it is not yet widely accepted by the industry as a whole. This study investigates the evolving awareness, benefits, and challenges associated with mass timber construction among U.S. construction professionals. Through a survey of over 100 construction practitioners, primarily from Cal Poly’s Construction Management Advisory …

Volume 108, Number 2 (2024)

Judicature

No abstract provided.

“Kematz'ib' Para Gritar” Innovative Technologies In Revitalizing The Mayan Languages: Empowering Youth Through Poetry - A Narrative Study, Héctor De Jesús Palala Martínez

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

This dissertation explores innovative approaches to preserving and revitalizing the linguistic and cultural heritage of Mayan-speaking youth of Guatemalan descent in rural Nebraska. It delves into the intersection of technology, artistic expression, and cultural practices, emphasizing the revitalization of Mayan languages in Abya Yala (the Americas), particularly emphasizing the Guatemalan and the Mayan diasporas in Nebraska.

The research investigates the roles of digital humanities, culture-based education, and poetic expressions in language preservation/revitalization efforts among Mayan youth and unaccompanied minors in transnational educational settings. Central to the study is an academic initiative for transnational Mayan high school students integrating poetry and …

Microbiome Variation In Production Phenotypes And The Role Of Colonization History In Microbiome Establishment, Seidu Adams

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Ruminant-based agriculture is expected to continue to be a major contributor to food security to feed the growing population. At the heart of nutrient degradation of complex organic matter within the rumen are its microbes. These microbes can convert otherwise unusable organic matter into usable protein and energy and can provide up to 50% of the animal’s protein needs and up to 70% of the energy needs. The microbial functional capacity within the rumen determines the nutrients utilized and the end products of fermentation. However, our understanding of microbial functional capacity within the rumen and factors that influence the rumen …

Three New Pieces For Double Bass By Colombian Composers Influenced By Colombian Traditions, Javier Alejandro Barreto Olaya

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

This document presents a study on the double bass as a solo instrument within traditional Colombian music, a tradition in which it has generally been relegated to accompaniment functions. I have commissioned three original works by Colombian composers, the integration of traditional genres, including sanjuanero, caña, danza, guabina, and llanero Airs, with modern compositional approaches. The commissioned pieces expand the solo repertoire of the double bass and highlight its potential and ability to adapt to traditional musical contexts. The lack of original repertoire for solo double bass in Colombian music is also addressed, integrating the commissioned pieces. The contribution of …