Digital Commons Network^™

Leadership Challenges With Multilingual Education Programs Implementation For English Language Learners In K–5 Public Schools, Suzanne Youveup

Walden Dissertations and Doctoral Studies

No abstract provided.

Real-World Outcomes Of Dedicated Leaflet Modification For Bioprosthetic Valve-In-Valve Tavr: A 150-Patient Commercial Experience., Raj R Makkar, Aakriti Gupta, Ignacio Inglessis, Curtiss T Stinis, Pradeep K Yadav, Vinod H Thourani, Stanley J Chetcuti, Matthew Summers, Vivek Patel, Bassem M Chehab, Apurva Patel, Gilbert H L Tang, Sahil Khera, Michael Rinaldi, Trevor Simard, Jeffrey Southard, Benjamin R Stripe, Brian Whisenant, Keith Allen, Yoseph Rozenman, Danny Dvir, Carlos E Sanchez, Jeffrey Popma, Martin B Leon, Philippe Généreux

Heart and Vascular Articles

BACKGROUND: Coronary obstruction during valve-in-valve (ViV) transcatheter aortic valve replacement (TAVR) is infrequent but catastrophic. Mechanical splitting of bioprosthetic leaflets may mitigate this risk, but real-world experience remains limited.

OBJECTIVES: The aim of this is to evaluate procedural performance and in-hospital outcomes of a dedicated mechanical leaflet-splitting device in ViV TAVR.

METHODS: Consecutive postapproval cases were performed at 28 centers from February to November 2025. Patients were selected for elevated risk based on preprocedural computed tomography criteria, including virtual valve-to-coronary distance ≤4 mm and/or virtual valve-to-sinotubular junction distance ≤3 mm. Procedural outcomes were assessed among patients in whom splitting was …

Cotton/Soybean Insect Newsletter, June 25, 2026, Jeremy K. Greene

Clemson University Cotton/Soybean Insect Newsletter

No abstract provided.

Our Experience As Unh International Changemaker Grant Recipients, Sustainability Institute Blog

Sustainability Institute Blog

No abstract provided.

Zine Open Assignment Guidelines For Mmp460, Anna Pinkas

Open Educational Resources

No abstract provided.

Advances In Research On Borehole Geophysical Exploration And Associated Equipment For Advance Detection Of Underground Water Hazards In Coal Mines, Wu Qiang, Wang Xianhui, Yang Donghui, Xiao Wenhao, Cui Zhuangjie, Chen Han, Sheng Zhen, Zeng Yifan

Coal Geology & Exploration

Background Deep coal mining is facing increasingly complex hidden disaster-causing factors, including faults, collapse columns, water accumulation in goaves, confined water in coal seam floors, and hydraulically conductive fracture zones. In this context, conventional modes based on ground exploration, roadway geophysical exploration, and drilling verification suffer from limitations in terms of detection distance, positioning accuracy, dynamic perception, and real-time feedback. In contrast, borehole geophysical exploration extends the detection space into coal-rock masses using underground boreholes, enabling the acquisition of information about continuous physical properties around, between, and ahead of boreholes. Therefore, this technology provides important support for the advance detection …

Recent Advances In Research On Intelligent Technologies And Equipment For Underground Geological Exploration Of Coal Mines In China, Zhang Jianming, Li Quanxin, Liu Fei, Fang Jun

Coal Geology & Exploration

Background Intelligent coal mine construction represents an important measure to promote the high-quality development of the coal industry. Developing intelligent technologies and equipment for geological exploration is the key to both transparent geological guarantee and the efficient prevention and control of major disasters in coal mines. Advances This study presents a systematic analysis of the latest advances in intelligent technologies and equipment for underground geological exploration of coal mines in China, focusing on intelligent drilling and geophysical prospecting. In terms of intelligent drilling, this study introduces intelligent drilling rigs equipped with multiple functions, including adaptive control, remote monitoring, and fault …

Philosophy And Methodology For Predicting Deep Coal Resources: A Case Study Of The Carboniferous-Permian Strata In The Ordos Basin, Cao Daiyong, Wei Yingchun, Ning Shuzheng, Wang Xin, Zhu Wenhao, Li Jingqi, Wang Anmin, Qiao Junwei, Xu Xiaotao, Hou Yuehua

Coal Geology & Exploration

Objective In China, deep coal resources hold considerable potential, exhibiting promising prospects for exploitation and utilization. Therefore, gaining a clear understanding of deep coal resources provides a prerequisite and foundation for both the national strategic planning of coal resources and the scientific development and utilization of deep coal resources. Research Thinking From the perspective of the current situation of coal resources in China, this study determined the occurrence characteristics and categories of deep coal resources. Accordingly, it proposed a philosophy and workflow for predicting the resources, followed by the prediction of deep coal resources in the Carboniferous-Permian strata of the …

Theoretical Research Advances And Applications Of The Dynamic Metamorphism Of Coals, Liu Hewu, Jiang Bo, Song Yu, Du Zhigang, Zhang Kun, Hou Chenliang, Yang Wenjie, Huang Nini

Coal Geology & Exploration

Background The dynamic metamorphism of coals, a significant type of coal metamorphism, represents a fundamental research topic of coal geology. The research achievements have been widely applied in fields such as coal resource evaluation, the prevention and control of coal mine gas, and the exploration and exploitation of coalbed methane (CBM), holding great significance for gaining a deep understanding of the microscopic mechanisms underlying coal deformation and metamorphism, coal and gas outbursts, and CBM occurrence. Method Based on a literature survey and analysis, this study presents a systematic review of the development history of research on the dynamic metamorphism of …

Tectonic Genetic Mechanisms Of Burnt Rocks In The Upper And Middle Reaches Of The Yellow River Basin, Sun Qiang, Hu Xin, Wang Shuangming, Ding Xiaoying, Geng Jishi, Wu Jiakun, Wei Shaoni, Luo Donghai

Coal Geology & Exploration

Objective The upper and middle reaches of the Yellow River basin represent significant coal bases of China, while burnt rocks formed by the high temperature of coal fires greatly affect the safe and green coal mining in this region. Therefore, investigating the distribution patterns and geological genetic mechanisms of burnt rocks in this region is of great scientific significance and practical value. Methods This study systematically investigated the distribution range and patterns of burnt rocks in the upper and middle reaches of the Yellow River basin. Using analysis of geological processes, this study explored the geological genetic mechanisms and primary …

Hydrodynamic Evolution Simulations And Safety Assessment Of The Deep Reinjection And Storage Of High-Salinity Mine Water, Xu Zhimin, Chen Weixiao, Sun Yajun, Zhang Jian, Chen Tianci, Liu Qi, Chen Ge, Hua Jingfan

Coal Geology & Exploration

Objective In some mining areas of North China-type coalfields, large volumes of high-salinity mine water produced during coal mining pose dual challenges: high treatment costs to meet discharge standards and the waste of mine water resources due to inefficient utilization before discharge. In recent years, the deep reinjection and storage technology for high-salinity mine water has provided a new approach to this issue. To achieve this technology, it is essential to understand the flow field evolution during mine water reinjection and address reinjection-induced safety problems. Methods This study investigated coal mine A in Jiangsu Province as an example. Using the …

Key Technologies For Artificial Intelligence-Based Inversion Of The Borehole Transient Electromagnetic Method In Coal Mining Areas, Fan Tao, Hao Yue, Zhang Peng, Li Ping, Zhao Zhao, Zhao Rui, Liu Qiang, Yan Junsheng, Song Xianzhe, Liu Borui, Chen Changyuan, Li Bo

Coal Geology & Exploration

Background Using directional boreholes, the borehole transient electromagnetic (TEM) method enables near-field excitation and the simultaneous reception of three components within a borehole. This method can effectively avoid interference from ferromagnetic materials in roadways, thereby significantly enhancing the detection accuracy and range. Therefore, this method is widely applied to the detection of underground concealed water hazards in coal mines. However, there is a conflict between the accuracy and efficiency of current inversion methods for borehole TEM data, and existing technologies are insufficient to simultaneously meet the demands for high efficiency and high precision in the detection of concealed water hazards. …

Development And Prospects Of Underground Intelligent Drilling Rigs For Coal Mines, Yao Ningping, Li Quanxin, Lu Qianhai, Peng Guangyu, Zhang Gang, Zhang Youzhen

Coal Geology & Exploration

Background In coal mines, underground intelligent drilling rigs serve as critical equipment for gas extraction and water hazard prevention and control. With increasing mining depth, extreme operating conditions, including elevated gas concentration and high in situ stress, pose challenges to conventional drilling modes. Progress This study presents a systematic review of the evolutionary history of intelligent drilling rigs in China from the 13th to the 14th Five-Year Plan, dividing it into three stages: semi-automated operation, whole-process automated operation, and initial intelligent drilling. In the semi-automated operation stage, technologies for remote control within a viewing distance and automatic loading and unloading …

Intelligent Path Planning For Drilling Arms In Rock Bolting In Coal Mines Based On An Improved Rrt Algorithm, Zhang Xuhui, Xie Yanbin, Lei Mengyu, Song Chengzhi, Dong Zheng, Wang Zeyao, Wang Tenghui, Tian Sihao, Zhang Qinhuan

Coal Geology & Exploration

Objective Against the background of intelligent coal mining, automated underground rock bolting has become a core demand in enhancing the tunneling efficiency and safety of roadways. However, the path planning of drilling arms suffers from a low degree of automation, cumbersome posture adjustment, low operational stability, and insufficient drilling accuracy in complex underground environments. Methods To address these issues, this study developed an intelligent path planning method for drilling arms in rock bolting in coal mines based on an improved rapidly-exploring random tree (RRT) algorithm. First, a goal-biased guidance strategy was adopted to narrow the sampling range, and an update …

Athletic Training Preceptors' Accuracy In Assessing Ai-Generated Clinical Scenarios Aligned With Caate Educational Standards, Elisabeth (Beth) Shoulders

Graduate Theses, Dissertations, and Capstones

Athletic training preceptors play a critical role in clinical education by evaluating student competence; however, little is known about their preparedness to assess competency-based standards, particularly when using emerging tools such as artificial intelligence (AI). The purpose of this study was to examine preceptors’ accuracy in applying Commission on Accreditation of Athletic Training Education (CAATE) standards and classifying student proficiency within AI-generated clinical scenarios, and to determine whether accuracy differed based on preceptor characteristics.

This quantitative, cross-sectional study included Board of Certification-certified athletic trainers who had served as preceptors within the past five years (N = 68). Participants completed an …

Frequency And Radiative Analysis Of Random Yagi-Uhf/Vhf Phased Array, Luis M. Bres, Luis A. Hernandez, Teviet Creighton

Physics & Astronomy Faculty Publications

This study investigates a phased array ground station capable of tracking multiple sources, multi-beamforming, electronic steering, easy scaling, and low cost. The project will develop a 20-pair dual-polarized Yagi-UHF/VHF phased array, comparing the parameters of random and uniform layouts. This study will be divided into two domains: frequency, and radiative domain. The frequency domain will explore the reception and transmission spectra analysis under several scenarios for our antennas. The radiative domain will explore the following: general side lobe analysis across both elevation and azimuth, antenna element sweep analysis, electronic beam steering analysis, electro-mechanical beam steering analysis, array density analysis, and …

Discourse In Youth Organizations Functioning In Poland: Constructing A Platform For Dialogue, Magdalena Cuprjak, Celina Czech-Włodarczyk

The Qualitative Report

Our research explores the degree to which youth organizations serve as platforms for open dialogue and examines how their discourse aligns with established principles of dialogism, as articulated by van Dijk (2001), Bakhtin (1982), and the 'authentic turn' concept proposed by Ostrowska (2017). In conducting this study, we anticipated finding variability in communication styles, expecting that some organizations—particularly those affiliated with the Polish Council of Youth Organizations (PROM)—would promote more inclusive, dialogic interactions. Conversely, we suspected that groups outside PROM, especially nationalist organizations like the All-Polish Youth, might display more exclusionary or ideologically driven messaging. Our expectations were rooted in …

Feedback Literacy In Colombian High School Students: A Phenomenological Approach, Maria Eugenia Cárdenas, Marcela Valencia Serrano

The Qualitative Report

This study aimed to understand 11^th-grade students' experiences with feedback during the first thematic unit of the mathematics class. It was based on the theoretical model of feedback literacy and used a transcendental-phenomenological design to fulfill its purpose. The participants were seven students from a private school in Cali, Colombia. These students were in the first unit of the mathematics class and interviewed in depth. The data analysis had several phases: epoche, horizontalization and units of meaning, textural and structural description, and composite description. We found that students' relation to feedback was characterized by a predominantly passive-receptive role …

Implementing Standardized Dsmes Education To Improve Nursing Practice And Patient Outcomes, Frank Egwu

Walden Dissertations and Doctoral Studies

No abstract provided.

An Examination Of Barriers To The Successful Community Reintegration Of African American Male Ex-Offenders, Taylor Wimbish-Bianco

Walden Dissertations and Doctoral Studies

No abstract provided.

Factors Influencing Attitudes Toward Transgender Army National Guard Personnel And Policy, Michelle Lyn Branch

Walden Dissertations and Doctoral Studies

No abstract provided.

Call Center Leaders’ Communication Strategies To Increase Employee Productivity, Tracie Okema Stenson

Walden Dissertations and Doctoral Studies

No abstract provided.

Community Perceptions And Hospital Selection In Depok: A Comparative Study Of Rsud Anugerah Sehat Afiat And Competitors Based On The 5a Framework, Iva Nur Faridah, Wahyu Sulistiadi

Jurnal ARSI : Administrasi Rumah Sakit Indonesia

RSUD Anugerah Sehat Afiat (ASA) Depok faces challenges in enhancing service utilization and competitiveness as a public hospital in the increasingly competitive healthcare environment of eastern Depok City. This study aimed to identify factors influencing community preferences in hospital selection and to determine appropriate positioning strategies for RSUD ASA. A mixed-methods case study design was employed. Quantitative data were collected from 132 respondents aged over 25 years who had visited four hospitals included in the study, using structured questionnaires. Qualitative data were obtained through in-depth interviews with eight key informants representing RSUD ASA management. Data analysis was based on five …

Exploring The Determinants Of Operating Room Utilization: A Scoping Review Of Influential Factors In Surgical Efficiency, Isma Sari Chumairah, Masyitoh Basabih

Jurnal ARSI : Administrasi Rumah Sakit Indonesia

Optimal utilization of the operating room (OR) is a crucial element in improving the efficiency of surgical services and hospital performance. This scoping review aimed to identify and map the factors influencing OR utilization based on recent scientific literature. We conducted a scoping review using the Population–Concept–Context (PCC) framework and reported it according to the PRISMA-ScR guidelines. We systematically searched PubMed, Scopus, and ScienceDirect for articles published between 2015 and 2025. Eligible studies were screened, and information on study characteristics and reported determinants of OR utilization was extracted and summarized descriptively. Forty studies were included. The reported determinants clustered into …

Nozzle Erosion Reconstruction Model For Data Analysis In Rocket Engines And Correlation With Chamber Pressure, Ryan J. Thibaudeau, Stephen A. Whitmore

Mechanical and Aerospace Engineering Student Publications and Presentations

Graphite nozzles remain the dominant choice for small hybrid and solid rocket motors operating on laboratory and university budgets, owing to their low cost, ease of machining, and rapid turnaround during iterative design campaigns. These same programs, however, must contend with the fact that graphite erodes through coupled thermochemical and mechanical mechanisms when exposed to the oxidizing species generated by high-energy propellant combustion, and the resulting throat-area growth fundamentally alters the time histories of chamber pressure, thrust, and delivered specific impulse. This paper presents a nozzle-erosion reconstruction model that extracts the time-resolved throat area from coupled thrust and chamber-pressure measurements …

Implementasi Lean Management Untuk Efisiensi Pengelolaan Linen Dan Kesesuaian Standar Pencegahan Dan Pengendalian Infeksi Di Rsu X, Rionugrah Sari, Alih Germas Kodyat, Apri Sunadi

Jurnal ARSI : Administrasi Rumah Sakit Indonesia

Linen management is an important process in hospitals that is directly related to service quality and Infection Prevention and Control (IPC) efforts. This study aimed to analyze the implementation of Lean Management in linen management at the laundry unit of RSU X and to evaluate its contribution to improving process efficiency and strengthening IPC practices. The study employed an operational research design with a qualitative approach through observation, in-depth interviews, and document review. Data analysis was conducted using Value Stream Mapping, waste identification based on the eight waste concept, and root cause analysis using the 5 Whys method. The results …

Table Of Contents, The Editors

Coal Geology & Exploration

No abstract provided.

Research And Empirical Validation Of The Application Modes Of Multimodal Large Language Models For Coal Mines, Wang Guofa, Wang Jingyi, Liu Shuang, Xu Zhe, Liu Mingrui

Coal Geology & Exploration

Objective Under the technological backdrop of large language models (LLMs), big data, and knowledge fusion, multimodal LLMs have found rapid application across traditional industries, including coal mining. However, the successful implementation and sustained operation of these models remain challenging. To address issues concerning the implementation and usage of multimodal LLMs in the construction of intelligent coal mines, this study conducted a multi-dimensional survey of multimodal LLM applications in coal mines, aiming to establish an LLM application paradigm that is suitable for the current management status and organizational structures for safe coal mining. Method Using content analysis, case analysis, and empirical …

Novel Connotations Of Green Exploration Oriented To Mine Ecological Restoration, Hu Zhenqi, Zhang Fan, Zhao Yanling, Liang Yusheng

Coal Geology & Exploration

Background Mineral resource exploitation inevitably causes ecological damage, while its green solution is rooted in green exploration. Currently, green exploration refers to activities aimed at avoiding, eliminating, or mitigating ecological pollution and damage caused by exploration operations, as well as those intended for the restoration of the ecosystem damaged in the exploration process. However, besides focusing on the exploration process, green exploration should provide geological guarantees for ecological restoration following resource exploitation. [Methods] In this study, the novel connotations of green exploration are proposed first. In other words, green exploration, which should be oriented to the demand for mine …

Advances In Research On Techniques For Petrographic Analysis And Tests Of Coals And Their Applications In China, Song Xiaozhong, Zhang Qun, Fan Zhangqun, Jiang Wenping

Coal Geology & Exploration

Background Techniques for petrographic analysis and tests of coals are critical to the accurate characterization of coals, oil, and gas, providing pivotal geological bases for coalfield exploration, formation condition investigation of coal deposits, clean and efficient coal utilization, and hydrocarbon resource evaluation. China's coal petrology commenced nearly a century ago, having progressively evolved into a key field serving the national energy strategy from the early-stage component identification and genetic investigation of coals. A standardization system suitable for the petrographic analysis and tests of coals with distinctive Chinese characteristics has been established. This system has found applications in industrial fields including …