Digital Commons Network^™

Knowledge And Application Of Solar Energy As Alternative Power Source To Ict Facilities: A Case Study Of Minhaj University Lahore, Dr.Shahid Mehmood Dr., , Muhammad Faisal Mr., Ahmad Nawaz, Dr Allah Ditta Nawaz, Dr. Muhammad Aamir Hameed

Library Philosophy and Practice (e-journal)

This paper is an exploration of the knowledge and utilization of solar energy to support ICT infrastructure at Minhaj University Lahore. In Pakistan, library operations and digital services can be disrupted due to power outages. In the survey, 87 scholars, students and library workers were surveyed about their awareness, experience and attitudes towards solar energy. The level of knowledge on solar energy was high as 100% of the respondents indicated that they are well informed about solar energy, 93.1 percent indicating that they can use it in the ICT sector. Nonetheless, large start-up costs, lack of equipment, and institutional barriers …

Toward The Significance Of Crevasse Orientation In Low And High Crevassed Regions On The Kennicott Glacier, Alaska, Usa, Claire A. Sturm

DePaul Discoveries

Supraglacial landforms serve as potential indicators of underlying bedrock morphology and glacier dynamics. The distribution and morphology of crevasses are closely associated with stress fields and ice-flow regimes, representing processes of stable glaciers, in contrast to their reduced occurrence in stagnant or receding ice masses. The orientation and density of crevasses influence a glacier’s ability to absorb solar energy, as they facilitate movement of meltwater down to subglacial rivers. Beyond the meltwater acting as a lubricant for basal sliding, the slope of the bedrock further impacts the local velocity and ice deformation of a glacier. The study of ice-fracturing mechanics …

Peer Attachment And Popularity Among Adolescents: The Mediating Role Of Relational Aggression, Katherine S. Fosco, Bailee Hill, Yan Li, Michelle F. Wright

DePaul Discoveries

Popularity during adolescence may pose a challenging social barrier, involving the desire for exclusivity and the need for broader peer connections. This study investigated the longitudinal effects of peer attachment on popularity among adolescents and the mediation process of relational aggression, expecting that peer attachment would be linked to reduced relational aggression, in turn relating to lower popularity at a later time point. The research participants (N = 569) included adolescents between the ages of 11 and 15 in the United States with data collection occurring at three time points. The path from Time 1 peer attachment to Time 2 …

Measuring And Mapping Spatial Distributions Of Soil Lead Concentrations Along Chicago Parkways: West Ridge And Near South Side, Alyssa M. Kain

DePaul Discoveries

Lead is a heavy metal that can be found in every part of our planet. Human activities like the extraction of fossil fuels and degradation of construction materials can release lead into the environment, where it travels and accumulates in places like our soil or water. Despite efforts to lower the use of lead-based materials within the last fifty years, lead contamination remains as a threat to public health and safety. Elevated blood lead levels are known to cause a variety of health issues particularly for young children and pregnant women. This study aims to measure, map, and analyze the …

Healthcare Access And The Persistent Racial Disparities In Low Birth Weight, Zaheda A. Hussain, Yadanar Moe

DePaul Discoveries

Low birth weight (LBW), defined as less than 2,500 grams, is an influential factor contributing to infant mortality in the United States, with significant racial disparities between Black and White mothers. This study analyzed data from 3,054 Black and White mothers collected from the 2018 National Health Interview Survey to explore the association between access to medical care and LBW within different racial groups. The prevalence of LBW was 8.0%. Overall, mothers without a usual place of medical care had, on average, an 18% higher risk of LBW than those with a usual place (OR = 1.18, 95% CI: 0.80–1.74). …

From Landfill To Ladle: Using Open Lca To Calculate Food Diversion Impacts, Samantha Rodriguez

DePaul Discoveries

Food waste contributes to climate change because discarded food results in wasting embodied carbon from producing food. In addition to wasting embodied carbon, food that ends up in landfills emits methane, a powerful greenhouse gas that contributes to climate change. This life cycle assessment quantifies the carbon equivalent footprint of food donations from Costco to the Seton Soup Kitchen using OpenLCA. Two functional units were analyzed in this study. The first functional unit is one meal consisting of 500 grams of donated food that would otherwise be landfilled served to a Seton Soup Kitchen patron during one meal service. The …

Fish Tissue Digestion And Microplastic Polymer Identification Protocol Using Open-Source Ftir Database, Shawn L. Kissinger, Vick-Ariel Privert, Jason Bystriansky, Kyle A. Grice

DePaul Discoveries

Microplastic (MP) contamination in aquatic ecosystems poses significant concerns for environmental and public health, as seafood represents a critical food source worldwide. Despite increasing evidence of MP presence in marine organisms, efficient and accessible detection methods remain essential for characterizing contamination patterns and informing regulatory frameworks. This study extracted MPs from brain, gill, intestine, liver, and muscle tissues of gilt-head bream (Sparus aurata) and European sea bass (Dicentrarchus labrax), two commercially important species from the Gulf of Cádiz, Spain, using a NaOH–HNO₃ chemical digestion protocol. Isolated particles were characterized by Fourier Transform Infrared (FTIR) spectroscopy, with …

Crystal Structural Analysis Of Medieval Human Bones Using Wide-Angle X-Ray Scattering, Selly Altangerel, Leslie Gracia

DePaul Discoveries

Female human second metacarpal (mc2) bones from a medieval cemetery at Wharram Percy, England, were studied using high-energy Wide-Angle X-ray Scattering (WAXS) at beamline 1-ID of the Advanced Photon Source at Argonne National Laboratory. The age-at-death of 33 samples was determined from molar wear and classified into 3 groups:  18-30, 30-50, and 50+ years old.  Rietveld refinements of the WAXS data were performed to obtain lattice parameters of the hexagonal carbonated apatite phase (cAp). Individual fittings for cAp peaks 00.2, 00.4, and 31.0 were performed to obtain their widths and correlate them to collagen retention. For the three samples described …

Clearing The Air: Tracking Spatial And Temporal Pm2.5 Variability Along A Biking Transect In Chicago, Beau R. Rass

DePaul Discoveries

Fine particulate matter (PM₂.₅) poses significant risks to human health and disproportionately affects marginalized communities in urban environments (World Health Organization [WHO], 2021; Tessum et al., 2021). Using low-cost mobile sensors, this study explored spatiotemporal PM₂.₅ concentration patterns along a north–south transect of Halsted Street in Chicago. A 2B Technologies Portable Aerosol Monitor (PAM) mounted on a bicycle was used to continuously record PM₂.₅ concentrations with associated GPS coordinates at approximately two-second intervals during 16 sampling events between 08-12-2025 and 10-05-2025. PM₂.₅ concentrations did not differ significantly among the South Side, West Loop, and North Side regions, contrary to the …

Depaul Discoveries Volume 15 Cover Art, Dina Khdair

DePaul Discoveries

No abstract provided.

Cmsi Research In The News, China Maritime Studies Institute

CMSI Quarterly Review

No abstract provided.

Cmsi Quarterly (Summer 2026) Full Issue, China Maritime Studies Institute

CMSI Quarterly Review

Full issue of Issue 1 of the CMSI Quarterly Review.

Vertebrate Diversity In Cave Systems Of Colombia: An Approach Based On Environmental Dna Metabarcoding Analysis, Rita Daniela Martinelli Marín, Carlos Andres Lasso, Francesco Sauro, Susana Josefina Caballero

International Journal of Speleology

There is currently limited knowledge of the biological communities inhabiting cave ecosystems in South America. This study examines the vertebrate community composition of 21 caves across diverse subterranean ecosystems in Colombia using environmental DNA (eDNA) analysis. Water was collected from water bodies inside caves and subterranean systems in six of the eight speleological regions of Colombia in eight departments. Water was filtered manually through a 0.8 m pore size filter and preserved with Longmire solution. A 170-base pair (bp) fragment of the 12s mitochondrial gene specific for vertebrate identification was amplified by PCR and sequenced by Illumina (metabarcoding). Data corresponding …

Origami Sake: Building A Sustainable Supply Chain For A New Beverage Startup, Akosua Sayer Koduah, Nick E. Johnston

ICHRIE Research Reports

Sustainability has become a strategic pillar in the hospitality and beverage industry, shaping supply chain decisions, consumer behavior, and market competitiveness. This study examines how Origami Sake, a startup brewery in Hot Springs, Arkansas, integrates sustainability into its supply chain from inception. Using qualitative analysis of company interviews, secondary data, and comparative literature, the study shows that Origami Sake embeds renewable energy, localized rice sourcing, and by-product reuse into its core operations. These practices reflect circular economy principles and strengthen regional identity, yet they also pose challenges related to packaging limitations, organic rice availability, data-tracking gaps, and the risks of …

Are Hotels Ready For Flooding? Improving Employee Preparedness, Ahmin Kwon, Marketa Kubickova, Swechchha Subedi

ICHRIE Research Reports

Focusing on the experiences of 500 current hotel employees in the United States, this report evaluates current levels of flood preparedness and the role of organizational support in shaping employee proactive response. Findings indicate that most employees have experience with flooding and rely on multiple information sources, yet trust in government response remains moderate. Clear disparities emerge across hotel segments, with significantly higher preparedness commitment and proactive behavior among employees in luxury hotels and those with longer tenure. Importantly, prior experience does not necessarily translate into effective preparedness. Although many respondents perceive existing information as sufficient, there is a continued …

Exploring Hotel Sustainability Through A Service Design Lens: An Espoused Theory Vs. Theory-In-Use Perspective, Cindy Yoonjoung Heo, Jaehyun Park, Sanqi Yang, Chen Ni, Lei Tang, Lei Yu, Julneth Rogenhofer, Geraldine Assen

ICHRIE Research Reports

Sustainability is now widely embedded in hotel strategies, but it is often assessed through what hotels communicate rather than what guests actually experience. This study examines that disconnect by drawing on Argyris and Schön’s distinction between espoused theory and theory-in-use, combined with a service design perspective. Using document analysis alongside in-situ observations at the front desk and in guest rooms, the study looks at how sustainability appears across service touchpoints and whether it is likely to be noticed and understood by guests. The findings suggest that many initiatives are operationally in place but remain largely out of sight during the …

Aviation Disruptions And Tourism Resilience: Policy Lessons From The Indigo 2025 Crisis For India’S Hospitality Tourism Sector, Ann Mary Varghese, Vijaya Zinnoury

ICHRIE Research Reports

The December 2025 IndiGo flight disruption crisis, characterized by widespread cancellations, delays, and capacity constraints, significantly impacted India’s tourism and hospitality sectors during peak travel periods. This research report examines the cascading effects of aviation instability on tourism demand, hotel occupancy, pricing dynamics, and regional economies. Drawing on secondary data from industry reports, news coverage, and policy analyses, the study identifies systemic vulnerabilities in India’s aviation–tourism nexus. Findings indicate that flight disruptions led to large-scale hotel cancellations, revenue losses, and demand volatility, particularly in destination-dependent regions in India such as Darjeeling, Rajasthan, and Uttarakhand. The report further evaluates industry responses, …

Tourism System Fragility: Evidence From The Middle East War, Ann Mary Varghese, Vijaya Zinnoury

ICHRIE Research Reports

The ongoing Middle East conflict (2026) has triggered one of the most significant global aviation disruptions since the COVID-19 pandemic, with widespread airspace closures, flight cancellations, rerouting, and fuel cost escalation affecting airlines worldwide. This research report examines how conflict-driven aviation instability has impacted tourism demand, hospitality performance, and destination economies.

Drawing on real-time global evidence, the study finds that the closure of critical air corridors across the Middle East, which handle approximately 15% of global air traffic, led to thousands of daily flight cancellations, mass rerouting, and substantial cost increases for airlines. These disruptions propagated across tourism systems, reducing …

Campus Food Recovery: Balancing Sustainability And Student Needs, Scott T. Taylor Jr., Wenhao Zhang, Robin B. Dipietro, Mary Stein, Junehee Kwon

ICHRIE Research Reports

The purpose of this study was to assess the impact of a food recovery program at a large university on food waste reduction and food insecurity mitigation. The primary goal of the food recovery program was two-fold: to help provide ready-to-eat meals for students facing food insecurity and to help the campus food service provider minimize post-production food waste. Thus, food was recovered from multiple dining outlets on a large university campus in the southeast United States. To ensure a valid comparison between 2022-2023 and 2023-2024 academic years, a 3-month period during the spring semesters in 2023 and 2024 was …

Robot Ready, Deploying Semi-Autonomous Food Delivery Robots, Betsy Bender Stringam, Somang Min, Jennifer Martinez

ICHRIE Research Reports

Semiautonomous food delivery robots are expanding rapidly across college campuses, healthcare facilities, office complexes, and other food delivery settings. The semiautonomous food delivery robot market grew to about $800 million in 2025 and is expected to exceed $3.24 billion by 2030.

This report draws on research studies conducted at a university contract foodservice beta deployment site, involving in-depth interviews with employees and managers who worked directly with semiautonomous food delivery robots during and after implementation, triangulated with field notes and observations by the research team. The report highlights key findings and develops an original practitioner framework around these findings, called …

Building Consumer Trust In Short-Term Rentals: A Literature Review On Factors Influencing Consumer Booking Motivations And Trust Formation, Alyssa N. Thornton, Kiyan Shafieizadeh

ICHRIE Research Reports

This study synthesizes existing research on consumer trust formation and booking motivations in short-term rental (STR) platforms through a systematic literature review. Drawing on 19 peer-reviewed studies published between 2015 and 2025, the review examines how trust-building cues and motivational factors jointly influence consumer booking decisions in peer-to-peer accommodation contexts. Using a thematic analysis approach, the findings reveal five dominant themes: visual and aesthetic cues, host attributes, reviews and reputation mechanisms, economic and functional motivations, and host–guest interaction. The results highlight the central role of visual presentation and social signals in reducing perceived risk and fostering trust, while economic and …

Pricing Hawaii: When Discounts, Fees, And Transparency Collide In Hotel Pricing, Kody Dominguez, Ingrid Lin

ICHRIE Research Reports

This report examines how hotel pricing structures in Hawaiʻi; specifically, Kamaʻāina discounts, visitor rates, and destination fees interact to shape perceptions of fairness, transparency, and booking behavior.

Using survey data from 192 respondents and a pricing audit of 57 properties in Oahu, Hawaii, the findings reveal a structural disconnect between pricing intent and guest experience. While Kamaʻāina discounts range from 20–30%, mandatory destination fees averaging $37.69 significantly erode realized savings, particularly at mid-tier price points. As a result, 62% of residents perceive hotel pricing as unfair, compared to 27% of visitors, and nearly 70% of respondents report abandoning bookings due …

Beyond The Aisle: The Essential Guide For Event Planners To Navigate Cultural Diversity In Weddings, Ellee N. Marsh, Mary Olle Dr.

ICHRIE Research Reports

This research aims to address an educational gap within the event planning community regarding cultural diversity across the wedding industry. As the wedding market within the United States continues to increasingly globalize, planners are encountering couples from a wide variety of cultural, ethnic, and religious backgrounds. Understanding and appreciating a wide range of these cultures creates an important baseline of someone else’s background in order to recognize where people are coming from and why they want certain traditions present. Recognizing this lack of cultural knowledge within the wedding planning community, I have developed a cultural wedding handbook that is designed …

Guests Attitude And Purchase Intention Towards Hotel Brand Extension, Daegeun Kim, Eun-Kyong (Cindy) Choi, Tanya Ruetzler, James Taylor

ICHRIE Research Reports

Brand extension is widely used among firms and hotels to launch new products using their parent brand name, making it important for practitioners to understand which factors influence consumers' attitude toward brand extension (ATT). This study investigated the role of consumer brand identity (CBI) in guests' attitude leading to purchase intention (PUR) for hotel vacation rentals. Findings suggest that CBI was a positive antecedent of perceived fit (PF) and tie (PT), which positively influenced ATT. Additionally, parent brand conviction and quality were identified as factors that positively influenced ATT and led to PUR. As the first study on hotel vacation …

Positioning Grand Junction As A Premier Golf Tourism Hub: A Swot Analysis, Tevfik Demirciftci, Eunkyeong Jung

ICHRIE Research Reports

This research report examines how experienced golf travelers perceive Grand Junction (GJ) as a golf tourism destination. Based on in-depth interviews, the study uses a SWOT-based approach to identify strengths, weaknesses, opportunities, and risks from the golfer’s perspective. Findings show that GJ is valued for its affordability, natural scenery, variety of courses, and extended playing season, but its potential is hindered by limited coordination among tourism stakeholders. The results suggest that stronger collaboration among golf courses and local businesses could enhance GJ’s appeal as an accessible and distinctive destination for golf tourism

Accreditation In Hospitality And Tourism Administration/Management: A History, Robert H. Bosselman

ICHRIE Research Reports

Accreditation in hospitality and tourism administration/managment education has a complex history. The current manuscript provides background on how accreditation was established in the field. The role played by International CHRIE and its members was reported as was the origin of the Accreditation Commission for Programs in Hospitality Administration. The manuscript provides suggestions for future direction of accreditation in hospitality and tourism administration/management education.

Prevalence Of Cerebrovascular Disease In Patients With Coronary Artery Disease After Pharmacological Stress Test, Eman Mahmoud Abdelfattah, Muhammad Salem Muhammad Hagrass, Khalid Ahmed Elkhashab, Sameh Emil, Hassan Mohamed Ebeid, Lamya Salih, Najah Makhbout Al-Amri, Mostafa Sayed, Haytham Soliman Ghareeb

Journal of the Saudi Heart Association

Objectives: Coronary artery disease (CAD) and cerebrovascular disease (CVD) share common atherosclerotic pathways. However, the clinical significance of headache absence during stress testing remains unexplored. We investigated whether the absence of headache during pharmacological stress testing reflects the presence of subtle cerebrovascular atherosclerosis detectable by transcranial Doppler ultrasonography (TCD).

Methods: This cross-sectional study enrolled 225 patients with CAD undergoing pharmacological stress testing with TCD and myocardial perfusion imaging (MPI) at centers in Egypt (Cardiology Department, Fayoum University). Patients were stratified by headache status during stress testing. Multivariate logistic regression and receiver-operating characteristic (ROC) analysis identified independent predictors of abnormal TCD …

Technical Disclosure: Localized Cymatic Disruption (Lcd) Matrix For Non-Thermal Polymer Decomposition, Christopher L. Eckes

Defensive Publications Series

This technical disclosure defines the architecture, calculated frequency bounds, and real-time telemetry protocols for an inline fluidic grid designed to execute non-thermal, non-chemical molecular decomposition of micro-plastic polymers (specifically Polyethylene Terephthalate [PET], High-Density Polyethylene [HDPE], and Polyvinyl Chloride [PVC]) via targeted mechanochemical shear. Bypassing traditional mechanical filtration and chemical depolymerization, the hardware configuration utilizes an inner-wall concentric cylindrical array of 960 independent lead zirconate titanate (PZT-5H) piezoelectric transducers driven with an engineered spatial phase-lag (Δ φ = π).

By generating a phase-locked radial Bessel beam profile \(J_0(k_r r)\) targeting the mechanical quality factors (Q) of specific polymer boundaries, the system …

A Unified Viscoelastic Substrate Specification For The Simultaneous Resolution Of High-Redshift Structure Formation And Cosmic Expansion Rate Discrepancies, Christopher L. Eckes

Defensive Publications Series

This technical disclosure formalizes a non-perturbative, particle-free continuum mechanics framework—the Dimensionally Extended Holographic Projection (DEHP) model—that resolves anomalous early structure formation observed by the James Webb Space Telescope (JWST) alongside the 5.6 km/s/Mpc Hubble Tension discrepancy. Rather than treating the cosmic medium as a passive geometric vacuum expanding via a cosmological constant (Λ), we model spacetime as an emergent macroscopic manifestation of a continuous, two-dimensional (2D) viscoelastic phase fluid substrate (z=0) operating in a resonant ground state ("The Garden State"). Three-dimensional (3D) baryonic mass distributions (z > 0) emerge as localized, high-tension wave crests ("knots") whose values represent localized vertical stress …

Chronological Latency: The Viscoelastic Rendering Delay Of Three-Dimensional Projective Knots Under The Dehp Framework, Christopher L. Eckes

Defensive Publications Series

This paper formalizes a particle-free, emergent theory of time by extending the Dimensionally Extended Holographic Projection (DEHP) model and Informational Exomemory Cosmology (IEC). While standard general relativity treats time as an immutable fourth coordinate dimension bound within a continuous spacetime continuum, we reinterpret time as a macroscopic, non-fundamental byproduct of quantum information processing constraints. Operating on the foundational axiom that the universe's baseline is a continuous, two-dimensional viscoelastic phase fluid substrate (z=0), we demonstrate that this ground state—the Garden State—is inherently static and timeless. Time sparks into operational existence exclusively in the projected three-dimensional volumetric bulk (z > 0) as a …