Digital Commons Network^™

Among Cypress And Sawgrass, Chandler Michael Culotta

Theses

Among Cypress and Sawgrass is a photographic series that explores the region I have come to call home, the Florida Everglades. This series explores the vast diversity of species and the ecosystem as a whole, but also speaks to the threats it has faced and continues to face that could devastate it forever. The series brings attention to the importance of this ecosystem, vocalizing support for its preservation, something we often depict in a phrase regarding the entire state; “Keep Florida Wild”. The series brings together photographs of the natural world and photographs of the ways humankind has influenced and …

Atoms And Leaves, Patty Tomanovich

Theses

Atoms and Leaves is a photographic project presented as windows into a utopia. The glass images display a potential time and place where the landscape, photography, and transness intertwine and grow from each other. Photography historically harms the landscape- requiring precious metals, releasing pollution into the atmosphere, and creating hazardous water waste. The traditional photographic canon erases the connection between queerness and ecology. Atoms and Leaves rethreads these connections, creating a world where photography collaborates with the landscape and takes on a transgender perspective by reshaping given material. The photographic printing process developed in this project was inspired by the …

Boman V. Elkanich, 140 Nev. Adv. Op. 21 (Apr. 25, 2024), Megan Cunnington

Nevada Supreme Court Summaries

The Nevada Court of Appeals determined when a patient is on inquiry notice as to their legal injury and if the patient’s degree of diligence is diminished while undergoing treatment from the negligent physician. A patient discovers their injury when they recognize the damage suffered and understand the health care provider negligent cause their injury. It found that a patient has a reduced degree of diligence to discover the harm while under the physician’s care, particularly if the physician reassures the patient that they will improve. This left genuine, factual disputes as to when Appellant should have known of the …

Logan Neifert, Saxophone, April 25, 2024 [Program], University Of Northern Iowa. School Of Music.

Music Recital Programs

Program of a music recitals given by faculty, students, or guest artists from the School of Music at the University of Northern Iowa.

Attentional Alchemy: Crafting Meaning In The Fabric Of Experience ---An Argument From Attention For The Content View, Ling 鳕鱼 张 Zhang

Theses

Abstract: In the realm of philosophy of mind, a central inquiry concerns whether perceptual experiences have content. This paper aims to construct an argument, termed Argument from Attention, which asserts that all visual experiences have content in the minimal sense, drawing upon insights from phenomenological features of attentional experience and mechanisms of attention elucidated in The Erotetic Theory of Attention. To achieve this goal, the paper begins by clarifying the essential features of contentful experience in Section 2. Furthermore, the second subsection scrutinizes Siegel's Argument from Appearances, highlighting the susceptibility of her Weak Content View to the …

Uconn Baseball Reliever Lane Optimization Tool, Jason Bartholomew

Honors Scholar Theses

The building of a tool to be utilized by UConn’s Division I baseball team that will generate a game plan for when different relievers should be used against different parts of the opponent’s lineup to achieve the lowest total expected value of runs allowed for the remainder of the game based on game situations and matchup probabilities. The tool will also examine and determine situations that may be vital enough to the outcome of the game to bring in a better reliever normally saved for later in the game.

Development Of Vasculature Patterns In A Mouse Model Of Supratentorial Ependymoma, Jackson Ayers

Honors Scholar Theses

Supratentorial Ependymoma (ST-EPN) is a subtype of ependymoma, a primary solid tumor found throughout the nervous system. ST-EPN are most commonly caused by an oncogenic fusion between the zinc finger gene ZFTA and the RELA, and this distinct ependymoma subtype is readily modeled in mice by conditional expression of ZFTA-RELA in radial glial cells. ST-EPN are known to have a distinctive arrangement of tumor cells and vasculature forming pseudo-rosettes in which polarized tumor cells surround blood vessels within the tumors. It is not known how these pseudo-rosettes or the tumor vasculature form and develop in ST-EPN, so in this study …

Generational Shift: Millennials And Gen Z Driving Ethical Supply Chains In Corporate America, Parker Brown

Celebrating Scholarship and Creativity Day (2018-)

This paper explores how millennials and Generation Z are driving a shift towards ethical supply chains in corporate America. Drawing on examples like Nike and Boohoo, it investigates the influence of these younger generations on consumer trends, emphasizing their preference for products aligned with values such as sustainability and ethically produced products. The paper outlines challenges faced by companies in adopting ethical practices, offers a step-by-step guide for implementing ethical supply chains, and highlights the significance of certifications like Fair Trade and B-Corp in fostering consumer trust and brand reputation. The paper asserts that millennials and Generation Z have reshaped …

The Cowl - V. 88 N. 7 - April 25, 2024

The Cowl

The Cowl - student newspaper of Providence College. Vol. 88 No. 7 - April 25, 2024. 24 pages.

Beyond Burnout: Investigating Teacher Demoralization In Preservice Education, Halle Strunk

Celebrating Scholarship and Creativity Day (2018-)

Teacher demoralization. Often mistaken with teacher burnout, it possesses distinct characteristics. Aspiring teachers, in particular, are vulnerable to its effects, worsened by the presence of social media in our daily lives. The rise of negative discourse surrounding teaching, amplified by social media, is concerning. In my research, I aim to explore the roots of teacher demoralization, why it matters, and potential solutions. Specifically, I will examine how social media, while often a source of negativity, might also offer avenues for positive change for both current and future educators.

Research On Tar-Rich Coals: Progress And Prospects, Wang Shuangming, Bao Yuan, Hao Yonghui, Wang Shengquan, Shi Qingmin, Li Dan, Hu Yiliang

Coal Geology & Exploration

Tar-rich coals are a coal-based oil and gas resource that integrates the properties of coal, oil, and gas. Given China's energy endowment of abundant coal resources but limited oil and gas reserves, exploiting tar-rich coals plays a significant role in alleviating China's tight supply of oil and gas resources and achieving green development and low-carbon utilization of coals. Using tar-rich coals as the keyword, we searched the CNKI and Web of Science databases for academic articles and patents published from 1985 to the end of 2023. Based on the search results, we statistically analyzed the process and main aspects of …

Sulphate Contamination In An Abandoned Coal Mine In Light Of Mining Effects, Qi Yueming, Zhou Pei, Zhou Lai, Jiang Dan, Yang Yuqing, Liu Yanzhuo

Coal Geology & Exploration

Abandoned high-sulfur coal mines will become deeply buried acid-producing contamination sites, posing hazards to adjacent aquifers and surrounding environments. Furthermore, mining effects and the complex spatial distribution of abandoned mines complicate the assessment of the contamination processes and degrees in adjacent aquifers. Focusing on a certain abandoned coal mine, this study examined the migration characteristics of SO₄ ²⁻ pollution in acid mine drainage using numerical simulations by taking sulfate (SO₄ ²⁻) as the characteristic contaminant and considering the effects of the fractures formed by the mining of multiple coal seams on the aquifer structure. Furthermore, it analyzed …

Exploring The Pore Structure Of Reconstructed Soils And Its Effects On Water And Salt Transport Based On Ct Scanning, Li Huakun, Zheng Liugen, Chen Yongchun, Li Bing, Tao Pengfei, Li Hao

Coal Geology & Exploration

Coal gangue serves as a critical material for landfilling and reclamation in the subsidence areas of coal mines. However, due to its rough textures and poor water-holding capacity, soils reconstructed using coal gangue exhibit somewhat different pore structures and water-salt transport from undisturbed soils. To explore the changes in the pore structure of the reconstructed soils and their effects on water and salt transport, this study analyzed the differences in the pore structures between four samples from undisturbed soils, the overburden, mud-gangue mixtures, and gangue using CT scanning and image analysis. Furthermore, an indoor experimental device was designed to simulate …

Gallium Oxide Based Avalanche Photo Detector, Muhammad Hassan Tahir Mr, Nifat Jahan, Md Ghulam Zakir

Faculty Publications

Gallium oxide (Ga₂O₃), an ultrawide bandgap semiconductor with a bandgap of 4.6 eV and a high critical electric field of 10.3 MV/cm, offers strong potential for high-performance avalanche photodetectors (APDs). This project explores the design and characterization of a Ga₂O₃-based APD featuring doped and undoped epitaxial layers optimized for high electric field generation and low thermal conductivity, enabling stable operation in high-temperature environments. Simulation results show a uniform electric field of 1 MV/cm under a 100 V applied bias, while material characterization confirms excellent surface smoothness with a mean roughness of ~1.1 nm and an electron mobility of 21.7 cm²/V·s …

The Farm, Justin Morris

Master's Projects

Synopsis:

’The Farm’ is a psychological thriller series inspired by the recent folk horror revival. We follow a suburban family who begin to lose their trust in each other as they fall further into peril on a strange isolated farm. When Brian, the patriarch, repeatedly puts his family in danger to satisfy his own ego, he forms a rift between him, his wife Madison, and son Charlie that quickly spirals into delusion, blind accusation, and paranoia. Desperate, they seek the help of Elias, the owner of the farm with his own tenuous grip on reality, and his quiet daughter, Emma. …

The Colby Echo (2024-04-25), Colby College

The Colby Echo

Published by the students of Colby College since 1877, The Colby Echo is the weekly, editorially independent student-run newspaper of Colby College in Waterville, Maine. Published monthly, 1877-1886; semi-monthly, 1886-1897; and weekly during the academic year, 1898-present.

Jtc 24: From Adversity To Achievement, Heather Shirley

University of Mississippi News

This story is part of the 2024 Journey to Commencement series, which celebrates the pinnacle of the academic year by highlighting University of Mississippi students and their outstanding academic and personal journeys from college student to college graduate.

Response Mechanism Characteristics Of Mining-Induced Fault Activation, Sun Wenbin, Hao Jianbang, Dai Xianzheng, Kong Lingjun

Coal Geology & Exploration

In the process of coal mining, mining-induced stress perturbation is a key factor leading to fault activation, which is a primary challenge faced by safe coal mining. Fault activation is prone to induce geological disasters such as rock bursts and floor water inrushes of coal mines. Furthermore, it poses a serious threat to mining safety. Using the Flac^3D software for numerical simulations and similar material simulation experiments, this study established a model for faults’ stress-displacement responses under coal mining to analyze the mechanisms behind the evolution of fault structure zones in the process of coal mining. Key findings are …

Laws Of Changes In The Energy Of Gas Hydrate-Bearing Coals Under Different Confining Pressures And Saturations, Zhu Wei, Gao Xia, Zhang Baoyong, Wu Qiang

Coal Geology & Exploration

Gas hydration for the solidification of coal seams susceptible to outbursts is a novel technology used to prevent coal and gas outbursts by reducing gas pressure and enhancing coal strength. However, an unclear understanding of the failure characteristics and the energy dissipation law of gas hydrate-bearing coals under different confining pressures and saturations leads to the lack of a theoretical basis for the prevention of dynamic disasters such as field coal and gas outbursts in deep mines. Based on the deviatoric stress-strain curves obtained using triaxial compression tests, this study calculated and analyzed the laws of changes in energy of …

Preliminarily Exploring The Theories And Technologies For Coalbed Methane Production Using Horizontal Wells: Comparison Of Conditions For Coalbed Methane And Shale Gas Exploitation, Wang Hongyan, Duan Yaoyao, Liu Honglin, Zhao Qun, Chen Shangbin, Lu Haibing, Shi Zhensheng, Sun Qinping, Chen Zhenhong, Zhou Shangwen, Yang Mingwei, Wang Cong

Coal Geology & Exploration

Through 30 years of unremitting explorations, coalbed methane (CBM) wells in China have gradually transitioned from vertical to horizontal wells. However, the lack of basic theories on CBM production using horizontal wells is the main challenge to current CBM development. Compared to shales, coal seams exhibit heterogeneity and a minor presence of foliations and brittle minerals, hindering the formation of volumetric fracture networks. Nevertheless, the roofs and floors of coal seams have high sealing capacities and mechanical strength, creating excellent conditions for hydraulic fracturing. Some fractures in coals are filled with calcite, rendering acidification conducive to the improvement of reservoir …

Accumulation Characteristics And Exploration Prospects Of Deep Coalbed Methane In The Longtan Formation Of The Nanchuan Block On The Southeastern Margin Of The Sichuan Basin, Guo Tao, Jin Xiaobo, Wu Didi, Xie Fei, Liu Jinxian

Coal Geology & Exploration

Vertical well Y2 in the Nanchuan bloc on the southeastern margin of the Sichuan Basin has yielded daily production of natural flowing gas of 13000 m³, signifying a strategic breakthrough in deep coalbed methane (CBM) exploration on the margin. This study aims to systematically reveal the enrichment and high-yield patterns of CBM in the Nanchuan block. Using data on the regional geology, tests, assays, and production, this study investigated the accumulation characteristic and conducted exploration potential evaluation for deep CBM in the Nanchuan block from the perspective of the quality, pore and fissure characteristics, gas content, and fracability …

Fracture Propagation Mechanism In Directional Perforation And Hydraulic Fracturing Of Coal Seam Horizontal Wells, Pang Tao, Jiang Zaibing, Hui Jiangtao, Jia Bingyi

Coal Geology & Exploration

Horizontal well perforation and fracturing in complex coal-bearing strata are key to increasing coal seam permeability and enhancing gas extraction efficiency, with the formation structure and perforation location determining fracture propagation. Considering the characteristics of formation structure and perforation locations, a fracturing geological model is established. Based on the finite element method, a numerical model is constructed to study the effects of perforation location, formation conditions, and the difference between vertical stress and horizontal stress on fracture perforation. Engineering verification is conducted, and construction suggestions are proposed. Key findings are as follows: There are three scenarios for the perforation locations: …

An Intelligent Water Source Discrimination Method For Water Inrushes From Coal Seam Roofs In The Inner Mongolia-Shaanxi Border Region, Wang Hao, Sun Junqing, Zeng Yifan, Shang Hongbo, Wang Tiantian, Qiao Wei

Coal Geology & Exploration

Water hazard on the coal seam proof induced by high-intensity coal mining are increasingly prominent in the Inner Mongolia-Shaanxi border region. The effective, accurate water-source discrimination of the water inrushes is the key to water hazard prevention. This study investigated three typical mines in the Inner Mongolia-Shaanxi border region. To this end, principal component analysis (PCA) was employed to extract principal components from 80 groups of groundwater samples. Then, with inorganic indicators K⁺+Na⁺, Ca²⁺, Mg²⁺, Cl⁻, SO₄ ²⁻, HCO₃ ⁻ and TDS and organic indicators UV_{254 …}

Experimental Study Of The Thermal Cracking Mechanism Of Limestones During Burning, Zhang Weiqiang, Cao Zhicheng, Zhou Qizhong, Wang Zuoquan, Wu Yun

Coal Geology & Exploration

Spontaneous combustion of coal seams will cause different degrees of structural damage to surrounding rocks at different high temperatures, significantly altering their physical and mechanical properties and engineering geological effects. To delve into the structural evolution patterns of rocks during burning, this study investigated the limestones from the floor of a coal mine in Xuzhou. It conducted thermal cracking experiments under different temperatures, exploring the thermal cracking patterns of rocks on multiple scales. Furthermore, this study revealed the genetic mechanism of thermal cracking by combining numerical simulations and microstructure tests. Key findings are as follows: (1) The thermal cracking temperature …

Exploring The Detection Performance Of Different Array Configurations For Multi-Electrode Resistivity Method Tomography Using A 2.5d Finite Element Method, Zhao Rongchun, Lyu Yuzeng, Zhang Zhi, Wei Liuye, Pan Hongxu

Coal Geology & Exploration

Multi-electrode resistivity method is equipped with various electrode array configurations. Due to their different electrode arrangements, various electrode array configurations tend to exhibit significantly varying detection effects under different survey environments. Hence, to achieve satisfactory detection effects using high-resolution electrical resistivity tomography, it is necessary to explore the strategy for choosing appropriate array configurations targeting different objects in practical work. Given the high applicability of the method, its forward and inversion calculations remain a critical task. Based on the differential equations to be satisfied by the point source potential in a three-dimensional structure, this study derived the variational problem to …

Three-Dimensional Forward Modeling Using The Transient Electromagnetic Method Under Complex Terrains And The Analysis Of Terrain Effects, Qu Shaobo, Zhu Jiao, Jiang Zhihai, Li Maofei, He Zhilong

Coal Geology & Exploration

The ground-based transient electromagnetic method (TEM), with unique advantages, has been extensively applied for hydrogeological exploration in coal mines. However, in field exploration, complex terrains tend to cause variations in geometric shapes of transmitting sources and deviations in signals received, reducing exploration accuracy. Hence, by integrating theoretical analysis and numerical simulations with the analysis of actual terrain data, this study systematically investigated the response characteristics of electrical- and magnetic-source TEM fields under complex terrains. Using the vector finite-element electromagnetic forward modeling technique based on second-order backward Euler discretization, this study delved into the laws of influence of peak and valley …

Research On Path Planning Methods For Underground Roadheader Robots, Zhang Xuhui, Zheng Xili, Yang Wenjuan, Li Yuyang, Ma Bing, Dong Zheng, Chen Xin

Coal Geology & Exploration

In order to solve the problems of difficulty and low efficiency in the movement of robotic roadheaders under conditions of non-full-section roadways in coal mines, the characteristics of unstructured environments in coal mines and the motion characteristics of robotic roadheaders were analyzed, and a path planning method for robotic roadheaders based on deep reinforcement learning was proposed. The tunnel environment was constructed in real time using depth cameras, a virtual model for detecting roadheader-tunnel collisions was established, collision detection was performed in a virtual environment using the hierarchical bounding box method, and an obstacle avoidance strategy under the restrictions of …

Edge Detection Of Low Illumination Image In Cutting Unit Of Shearer, Jia Pengtao, Jin Luwei, Wang Bin, Guo Fengjing, Li Na

Coal Geology & Exploration

In this paper, a fractional differentiation-based edge detection algorithm named Lif is proposed to address the edge detection problems of missing edge and fuzzy details in the cutting unit of shearers working in low-light underground environments. First, the initial fractional mask operator was built using a larger detection template according to the Grünwald-Letnikov definition of the fractional derivative. Then, the weight coefficients at various positions of the mask operator were determined according to the theory of Pascal’s triangle, and the mask operator was extended to four different directions. Finally, the mask operator was convolved with the image, and the local …

"Salir Adelante": Improving The Quality Of School Entrance Physicals For Immigrant Minors, Jennifer Sternberg, Elizabeth Morse

DNP Projects

The purpose of this QI project was to improve the delivery of school physicals in the setting of an -friendly non-profit safety-net clinic by creating a patient-centered clinical pathway to improve focused screening and referrals for newly arrived migrant children and their families by routinely assessing and addressing behavioral health care (BH) and social determinants of health needs (SDoH).

Using QI methodology and Donabedian’s Structure Process Outcomes framework, the project team implemented a clinical pathway that included an immigration-focused history of present illness, systematic behavioral health (BH), and social determinants of health (SDoH) screenings embedded within an electronic health record …

Hicks, Hillbillies, And Rednecks: Addressing Stereotypes Of The Appalachian Region, Emma Campbell

Senior Honors Theses

The Appalachian region of the U.S. has been widely stereotyped as a poverty-stricken place filled with “backwards” people and practices (Wood & Hendricks, 2009, p. 1). News and entertainment media in the United States have done little to improve or diminish these stereotypes as times have changed and have often perpetuated them. This thesis examines recent portrayals of Appalachia in media to identify shortcomings and misrepresentations and review methods for diminishing stereotypes that have been successful. From this review, elements of different approaches are evaluated and combined to develop a proposed social media campaign oriented toward changing public perception of …