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Articles 30181 - 30210 of 1824500
Full-Text Articles in Entire DC Network
A Note From The Editors, Nancy Hoalst Pullen, Mark W. Patterson
A Note From The Editors, Nancy Hoalst Pullen, Mark W. Patterson
The Geographical Bulletin
A Note From the Editors
Quantifying Potential Spatial Accessibility To Adult American Sign Language Classes In Los Angeles County, Caroline R. Baumann
Quantifying Potential Spatial Accessibility To Adult American Sign Language Classes In Los Angeles County, Caroline R. Baumann
The Geographical Bulletin
This research examines potential spatial accessibility of adult American Sign Language (ASL) learning opportunities in Los Angeles County, California (USA). Over 90% of all deaf children are born to hearing parents, who typically do not know sign language. Research has shown that deaf children whose parents learn sign language tend to have better outcomes than those who do not. Thus, adult accessibility to sign language classes is crucial for the success of deaf children. The Two-Step Floating Catchment Area (2SFCA) method was used to calculate a provider-to-population ratio using network analysis and aggregate these ratios within population catchment areas. The …
Dune And Geographic Perceptions Of Today’S Artifical Intellisence Revolution, Seth T. Kannarr
Dune And Geographic Perceptions Of Today’S Artifical Intellisence Revolution, Seth T. Kannarr
The Geographical Bulletin
Today we are in the midst of an artificial intelligence (AI) revolution. As generative AI tools like ChatGPT, Microsoft Copilot, and Google Gemini become increasingly available and accessible for more people to use, so does the growing concern for the ethics of their use and future consequences of this technology by geographers and the general public. By taking a look into the universe of Dune, a science fiction work that operates in a future world without AI “thinking machines”, we can gain insight into public perception and rising fear mongering regarding AI tools. As we proceed as a society, we …
Prairie, Nature, Innovation: Midwest Identity Represented In State Quarters, Kady Nolte, Gillian Acheson
Prairie, Nature, Innovation: Midwest Identity Represented In State Quarters, Kady Nolte, Gillian Acheson
The Geographical Bulletin
The US Commemorative Quarter Program, begun in 1999, was wildly popular with millions of people collecting the coins. Fifty new designs were introduced for the quarter’s reverse that intended to represent each state’s unique history and identity. These coins are a piece of material culture that can be studied to understand how they represent place identity, specifically state and regional identity in the US Midwest. In this study, quarters were examined using content analysis to understand how each design represented its state. Coins were studied individually and then wholistically to identify commonalities shared within the Midwest. Three themes were identified …
Project Chimaera: Morphing Wing Technology, Evan Meyer, Joshua Shuster, Eric Rodarte, Jackson G. Schuler, Miguel A. Delgado
Project Chimaera: Morphing Wing Technology, Evan Meyer, Joshua Shuster, Eric Rodarte, Jackson G. Schuler, Miguel A. Delgado
Student Research Symposium (SRS)
Project Chimaera seeks to advance aerodynamic design through the development of a morphing wing system that can alter its geometry to improve aerodynamic performance, efficiency during flight, and is capable of adapting to multiple flight regimes—subsonic, supersonic, and hypersonic. Through the integration of a tessellated tetrahedron truss structure with horizontal and vertical members comprising of linear actuators, the wing can alter its geometry and create large-scale, localized deformations. The linear actuators allow the wing to alter its twist, sweep, dihedral, and airfoil profile to optimize aerodynamic performance across varying speeds. The project includes the design and fabrication of a prototype …
Workplace Strain And Musculoskeletal Health In Nurses, Abriella Smith
Workplace Strain And Musculoskeletal Health In Nurses, Abriella Smith
Student Research Symposium (SRS)
Musculoskeletal disorders are common among healthcare professionals due to repetitive movement, prolonged standing, and physically demanding work environments. In nursing, these challenges are intensified by psychosocial stressors such as staffing shortages, role ambiguity, and increased cognitive workload. Ergonomic assessments using the Hand Threshold Limit Value (TLV) and Rapid Entire Body Assessment (REBA) revealed significant strain associated with patient transport, CPR, and extended administrative duties. The resulting discomfort contributes to chronic pain, fatigue, and decreased focus, which can impair overall job performance and long-term health. Implementing ergonomic interventions along with regular rest breaks and task rotation can alleviate physical strain, enhance …
Ergonomic Risks And Musculoskeletal Disorders In Construction And Maintenance Work: A Case Study Of Eddie’S Journey, Jasmine Cruz
Ergonomic Risks And Musculoskeletal Disorders In Construction And Maintenance Work: A Case Study Of Eddie’S Journey, Jasmine Cruz
Student Research Symposium (SRS)
This study examines the long-term musculoskeletal effects experienced by Eddie, a 71-year-old retired construction worker and building superintendent. Over several decades, Eddie’s work involved repetitive lifting, bending, twisting, and heavy tool use, factors contributing to chronic pain in his knees, back, shoulders, and wrists. Two ergonomic analysis tools were applied: the Rapid Entire Body Assessment (REBA) and the Hand Activity Threshold Limit Value (TLV). The REBA identified shoveling tasks as high-risk (score = 9), with excessive trunk flexion and repetitive motion driving strain. The Hand TLV showed Eddie’s right hand exceeded the threshold limit, indicating high ergonomic risk from repetitive, …
Shoulder Ligament Instability In A Nuclear Watch Engineer: How Poor Equipment Conditions Lead To Increased Risk Of Musculoskeletal Disorder, Brianna Broderick
Shoulder Ligament Instability In A Nuclear Watch Engineer: How Poor Equipment Conditions Lead To Increased Risk Of Musculoskeletal Disorder, Brianna Broderick
Student Research Symposium (SRS)
This case study focuses on a nuclear watch engineer, referred to as BC, and how his working conditions coupled with his pre-existing shoulder ligament instability lead to risk of physical injury. Analysis was done through two musculoskeletal disorder risk assessments and interviews focusing on background and psychosocial factors in the workplace. The main risk was associated with the plant’s equipment: poor placement led to shoulder, neck, and upper limb strain, and lack of maintenance led to strain via more force when trying to turn the valves. The high-pressure nature of his position and long working hours are also contributors. Recommended …
Mapping The Socioeconomic Impact Of Hurricane Ian, Jordan Rezende De Lucia
Mapping The Socioeconomic Impact Of Hurricane Ian, Jordan Rezende De Lucia
Student Research Symposium (SRS)
How do natural disasters impact different socioeconomic portions of society, and what spatial patterns emerge in disaster vulnerability, economic recovery, and aid distribution? Natural disasters aren’t felt equally by everyone. This study aims to take a closer look at how pre-existing socioeconomic conditions shape the way different communities are affected and how they recover. I argue that lower-income areas get more adversely affected by natural disasters and recover slower in comparison with wealthier areas. I tested these hypotheses using geospatial data from Hurricane Ian, which hit Florida in September 2022. For the geospatial analysis, I used ArcGIS Pro to map …
Analysis Of Northward Solar Wind High-Energy Plasma Jets In Earth's Magnetosphere, Amelia Koth
Analysis Of Northward Solar Wind High-Energy Plasma Jets In Earth's Magnetosphere, Amelia Koth
Student Research Symposium (SRS)
High-energy plasma jets form when the supersonic solar wind decelerates to subsonic speeds at Earth’s bow shock, producing a turbulent region known as the magnetosheath. Occasionally, the solar wind retains its supersonic nature and penetrates deeper into this region, which generates transient, high-velocity plasma jets directed toward Earth. These jets carry their own magnetic fields, which can interact with Earth’s field, drive magnetic reconnection, and potentially initiate substorms that lead to auroral activity. The NOVA (Northward-Oriented Velocity Analysis of High-Energy Plasma Jets in Earth’s Magnetosphere) study investigates specific jet events that occur during northward interplanetary magnetic field (IMF) conditions. Conducted …
Mission Ready, Physically Wrecked: Ergonomic Case Study Of Aircrew Bag Drags, Carissa Aumack
Mission Ready, Physically Wrecked: Ergonomic Case Study Of Aircrew Bag Drags, Carissa Aumack
Student Research Symposium (SRS)
The following work is a case study of a retired United States Air Force officer, callsign Doppler, whose former roles included instructor pilot and aircraft commander for C-5 Galaxies. During their service as a commissioned officer, Doppler incurred multiple repetitive musculoskeletal injuries to their cervical and thoracic back, which they believe to have been exacerbated by the task design associated with “bag drags”. “Bag drags” are the processes by which all crew luggage is loaded onto the aircraft after receiving deployment orders, with each crew member (~9-12) bringing a minimum of five bags ranging between 50-60 lbs. each. In an …
Er-18 Jet Engine Rfp, Benjamin Lozano, Joseph Collins, Theodore Stangas, Michal Wlodarski
Er-18 Jet Engine Rfp, Benjamin Lozano, Joseph Collins, Theodore Stangas, Michal Wlodarski
Student Research Symposium (SRS)
This report presents the preliminary design phase of the AE435-F25 Advanced Tactical Airlifter Propulsion System, developed in response to the Request for Proposal (RFP) for the ER-18, a large, next-generation, strategic, and tactical airlift platform. The customer’s needs emphasize reliable performance across a wide mission envelope, including short-field takeoff, heavy payload capability, long-range subsonic cruise, and loiter operations under standard conditions. After interpreting the RFP and evaluating potential propulsion configurations, our team determined that a high-bypass turbofan offers the best balance of efficiency, thrust performance, and operational flexibility to meet the airlifter’s requirements. The critical engineering parameters identified from this …
Vibration Control In Uavs For Enhanced Lidar Accuracy Using Metamaterials, Kylie Michaud
Vibration Control In Uavs For Enhanced Lidar Accuracy Using Metamaterials, Kylie Michaud
Student Research Symposium (SRS)
As technology develops, new systems are being created to deliver increased accuracy, cost-effectiveness, and overall efficiency. A specific example of this is LiDAR sensors onboard UAVs for 3D mapping applications of structures. As these sensors become lighter, this allows manufacturing to use smaller UAVs for closer and more confined environmental spaces. However, smaller UAVs introduce higher vibrational frequencies, those that current systems struggle to mitigate. The implementation of metamaterial structures can act as a dampener for these high frequency ranges. Metamaterials can be used to create bandgaps, which can enable frequency ranges that can prevent vibrations from affecting UAVs. Implementation …
Experimental Validation Of Torricelli’S Law Using Dual Tank Geometries, Utkarsh Ravi, Zarif Naimul
Experimental Validation Of Torricelli’S Law Using Dual Tank Geometries, Utkarsh Ravi, Zarif Naimul
Student Research Symposium (SRS)
This project investigates Torricelli’s Law, a fundamental principle in fluid mechanics that relates the velocity of fluid exiting an orifice to the height of the fluid above the opening. The experiment compares the drainage rates of two vertical tanks with different diameters but identical outlet sizes, isolating the influence of tank cross-sectional area on flow behavior. Each tank is filled to the same initial height, and water level versus time data are collected as the tanks drain under gravity. Using differential equation modeling and separation of variables, theoretical predictions are derived and compared to experimental results. Data analysis focuses on …
Erau Roboracer, Carmen Dimario, Ihan Ventura, Austin Rollfing, Michael Ulivarri, Daniel Minks
Erau Roboracer, Carmen Dimario, Ihan Ventura, Austin Rollfing, Michael Ulivarri, Daniel Minks
Student Research Symposium (SRS)
ERAU RoboRacer's autonomous racing presents unique challenges for real-time decision-making, requiring vehicles to operate at the limits of performance while maintaining safety in dynamic environments. It aims to create a 1:10-scale autonomous race car that integrates perception, planning, and control to compete in RoboRacer competitions while serving as a research platform for high-speed autonomy. The system fuses data from LiDAR, cameras, and IMU sensors to perform simultaneous localization and mapping, detect obstacles and competitors, and plan optimal racing lines for both time-trial and head-to-head racing. Control is achieved through a hybrid approach combining pure pursuit, PID velocity control, and model …
Modeling The Gravitation Field Of M85 Using Newtonian Physics And 3d Vector Fields In Matlab, Jeffery Smothermon, Jose Murphy, Allen Perry, Jamie Shore, Caden Mosteller, Jose Pons
Modeling The Gravitation Field Of M85 Using Newtonian Physics And 3d Vector Fields In Matlab, Jeffery Smothermon, Jose Murphy, Allen Perry, Jamie Shore, Caden Mosteller, Jose Pons
Student Research Symposium (SRS)
This project explores the gravitational field of the supermassive blackhole M87, using multivariable calculus and Newtonian physics. The gravitational field is treated as a three-dimensional gravitational field vector, derived from Newton’s universal law of gravitation, assuming the black hole as a point mass: g(x,y,z)=-∇Φ=G*M*(R/|R|^3) Where G is the gravitational constant, M is the mass of the black hole, and R is the radial vector from a particle to the center of the black hole. To overcome the inaccuracy of Newtonian Gravitation of black holes, the Schwarzschild radius is implemented to omit parts of the blackhole that are past the event …
The Royal And Divine Garden: Cherubim And Vegetation Imagery In Solomon’S Temple And The Ancient Near East, Jack W. Sulewski
The Royal And Divine Garden: Cherubim And Vegetation Imagery In Solomon’S Temple And The Ancient Near East, Jack W. Sulewski
Global Tides
Solomon’s Temple is described in significant detail in 1 Kings and 2 Chronicles. It may surprise the reader to know that virtually all iconography included in the Temple’s design were standard forms of communicating religious concepts in the Ancient Near East. This can present some theological problems. Is Israel’s “use" of other pagan nations' religious symbolism an issue when communicating the holiness of God? To understand further the relationship between culture, politics, and Ancient Near Eastern religion, I spent one month doing archival research in England’s multiple museums analyzing ANE object collections. Through a report of my work, this essay …
Rethinking The Nfl’S Commitment To Healthcare, Weston Mcclain
Rethinking The Nfl’S Commitment To Healthcare, Weston Mcclain
Denver Sports & Entertainment Law Journal
Damar Hamlin’s heart stopped beating after a routine Monday Night Football game tackle. This event caught the nation's attention, and the National Football League (NFL) promised to care for Hamlin’s long-term health needs. While Hamlin miraculously recovered, the tragic reality is that neither the NFL nor Hamlin’s team were legally required to provide Hamlin with long-term healthcare or a pension. Countless former NFL players suffer through long-term health challenges with little support from the NFL. This Article examines the current state of healthcare for NFL players. The Article considers NFL players' unique long-term health challenges and why they deserve special …
Comparative Sharia Law In Iran And Nigeria: Effects On Athletes And Recommendations For Sports Governing Bodies To Increase Access For Muslim Women And Girls, Rachel Crass
Denver Sports & Entertainment Law Journal
No abstract provided.
Vol. 30, No. 1: Full Issue, University Of Denver Sports & Entertainment Law Journal
Vol. 30, No. 1: Full Issue, University Of Denver Sports & Entertainment Law Journal
Denver Sports & Entertainment Law Journal
No abstract provided.