Digital Commons Network^™

Boosted Electrochemical Oxidation Of Methanol At Feox/Pd/Au Ternary Nanocatalyst, Ghada El-Nowihy

Chemical Engineering

In this paper, a highly effective catalyst for methanol electrochemical oxidation (MEO) was developed by the sequential deposition of spherical gold nanoparticles (nano-Au) on a glassy carbon (GC) rod’s surface followed by palladium nanoparticles (nano-Pd), then, iron oxide nanoparticles (nano-FeOx) to form FeOx/Pd/Au/GC catalyst. The sequence of catalyst’s layers proved crucial in optimizing its performance towards MEO. Notably, FeOx/Pd/Au/GC electrode produced a remarkable enhancements in the catalytic activity (by 7 times) and stability (approximately 16 fold) when compared to those produced at Pd/GC rod. Additionally, the onset potential for MEO was significantly reduced by approximately 40 mV. Through material and …

The Association Of Smoking, Education, And Income Level With Cancer In Mexican Migrants At The U.S./Mexico Border, Carlo Opont

Walden Dissertations and Doctoral Studies

Cancer is a major public health problem in the United States and around the world. The condition is reported to be among the leading causes of death and has a significant impact on quality of life. The purpose of this study was to explore the association of smoking, education, and income level with cancer in the Mexican migrant population at U.S./Mexico border while controlling for age and gender. This quantitative, retrospective, cross-sectional study with a sample size of 988 used secondary data from the Mexican Migrant Project to explore the potential association between smoking, education and income level with cancer …

Parent Roles Supporting Curriculum And Instruction With Virtual Learning During The Covid-19 Pandemic, Keli Louise Amprey

Walden Dissertations and Doctoral Studies

The COVID-19 pandemic created an educational crisis when schools across the United States closed abruptly, requiring parents to assume new roles as facilitators of online learning without adequate preparation. Guided by Bandura’s social learning theory, the purpose of this retrospective basic qualitative study was to investigate parents’ perceptions of their roles as instructional and curriculum facilitators for elementary-level students during COVID-19 distance learning. Research questions examined how parents described their roles as online instructional facilitators, what challenges they faced in supporting curriculum and instruction virtually, and what types of support they needed to succeed in their new educational roles during …

Facilitation Of Focus Groups Towards Conflict Resolution Among Pastoralists And Farmers In Northern Uganda: An Indigenous Relational Approach, Francis Akena Adyanga Dr., Norma Ra Romm Prof., Ambrose Dbins Toolit

The Qualitative Report

In this article we discuss how we explored with participants in a district of Northern Uganda certain land-related conflicts between pastoralists (herdsmen) and farmers. Following the end of the conflict in the civil war in Northern Uganda (1986-2006/7), many pastoralists moved from Central and Western Uganda to Northern Uganda in search for pastures for their animals. This has resulted in tension with the host community of farmers. In recognition of these long-standing conflicts and wishing to contribute to their addressal, in 2021 we set up four focus groups drawing on Indigenous relational practices of conflict resolution. We invoked storytelling and …

Implementing A Questioning Strategy In Teaching Reading Texts In Efl Classes: A Qualitative Study, Mohammed A. Alzahrani Dr.

The Qualitative Report

Developed by Beck and McKeown in the 1980s, Questioning the Author (QtA) emphasises active engagement with texts to construct meaning rather than passive information extraction. Despite numerous studies attempting to solve challenges in the English as a Foreign Language (EFL) context, there is a lack of interpretive studies that investigate this issue from the actual field. This exploratory study investigated how EFL teachers' implementation of QtA and their perspectives toward the use of the QtA strategy in teaching reading comprehension in Saudi secondary schools through nine interviews and eighteen classroom observations, analysed thematically. Findings showed that effective QtA use requires …

“Me Dancing”: An Intrinsic Case Study Of Primary School Boys’ Understandings Of Movement And Dance Through Their Drawings, Rosemary G. Bennett Ms, Jane Southcott

The Qualitative Report

In this research we explore the place of creative embodiment through movement and dance from the understandings of a group of 8-10-year-old elementary school boys. Children can be asked to speak or write about their movement experiences, but for younger cohorts it may easier for them to reveal their ideas via their own drawings. In this qualitative study using drawings as a research method, two classes (a total of 31) of Year 3-4 boys in a suburban elementary school in Melbourne, Australia were asked to produce a drawing of “me dancing” in an empty frame. Each child was then asked …

Welcome, Wildcats: Campus Energized With Arrival Of Students, Unh Communications And Public Affairs

UNH Today Archive

No abstract provided.

Progressive Respiratory Failure In A Term Neonate With Abca3 Surfactant Deficiency: Beyond The Common Causes Of Respiratory Distress, Andrew M Beverstock, Hillary C Lee, David S Moreno Mcneill, Morcos Hanna

Faculty, Staff and Students Publications

Background

Case

Bridging Diagnostic Safety And Mental Health: A Systematic Review Highlighting Inequities In Autism Spectrum Disorder Diagnosis, Abirami Srivarathan, Andrea Bradford, Sara Shearkhani, Layla Heimlich, Sheryl Jefferson, Kristen E Miller, Kelly Smith, Helen Haskell, Traber D Giardina

Faculty, Staff and Students Publications

Introduction: There is increased recognition that diagnostic errors disproportionately affect marginalised and underserved patient populations in the USA. However, evidence on diagnostic inequities in mental disorders is sparse and not well integrated into the overall diagnostic safety literature.

Objective: We systematically reviewed and narratively synthesised evidence on inequities in diagnosis of mental disorders, guided by the Diagnostic Process Framework developed by The National Academies of Sciences, Engineering, and Medicine.

Methods: We conducted a systematic review and a narrative synthesis. Medline, Embase, PsycInfo and CINAHL were searched for studies published between 2015 and 2024. Studies were eligible if they reported on …

Mri-Guided Focused Ultrasound Thalamotomy For Neuropathic Pain In An Adolescent With Cranial Metastases: Illustrative Case, Sarah G Van Winkle, Danika L Paulo, Ashwin Viswanathan, Daniel Curry, Nisha Gadgil

Faculty, Staff and Students Publications

Background: Neuropathic cancer pain (NCP) is a debilitating condition that is often refractory to conventional medical management. MRI-guided focused ultrasound (MRgFUS) central lateral thalamotomy (CLT) is an incisionless neurosurgical option for neuropathic pain palliation, but its use in pediatric patients and those with cranial metastases, a relative contraindication to MRgFUS, remains largely unexamined.

Observations: A 16-year-old male with metastatic rhabdomyosarcoma (RMS) with numerous cranial metastases experienced severe, diffuse, refractory NCP. The patient underwent bilateral CLT with MRgFUS. After the procedure, the patient experienced complete and durable resolution of his neuropathic pain. He only reported occasional somatic pain at sites of …

Strategies Used In The Biotechnology Industry To Develop And Continuously Improve Compliant Regulatory Processes To Meet The Food And Drug Administration Quality Federal Regulations, Vicki Mckee

Walden Dissertations and Doctoral Studies

Failure to comply with the U.S. Food and Drug Administration (FDA) quality regulations can lead to enforcement actions for the biotechnology (biotech) industry. Noncompliant regulatory strategies have the potential for adverse medical outcomes for patients. As a result, managers in the biotech industry are concerned about ensuring compliance to avoid adverse medical outcomes for patients and sustain business operations. Grounded in Deming’s total quality management concept, the purpose of this qualitative pragmatic inquiry project was to explore effective quality management strategies that managers in the biotech industry use to develop and continuously improve compliant regulatoryQuality Federal Regulations processes to meet …

Mechanisms Behind The Cross And Fusion Of Gas Migration And Storage Zones Under The Influence Of The Mining Height Of Fully Mechanized Mining Faces, Zhao Pengxiang, Guo Xu, Wang Chao, Li Shugang, Zhuo Risheng, Chang Zechen, Lei Wen

Coal Geology & Exploration

Objective The mining height of coal seams along fully mechanized mining faces significantly influences the formation and evolution of fractures in the overburden, as well as the characteristics of gas migration and storage zones. Investigating the influential patterns under varying mining heights will provide guidance for the arrangement of gas extraction boreholes, thus enhancing gas extraction efficiency. Methods This study investigated mining face 203 in the Tianchi Coal Mine in Heshun County, Shanxi Province. By integrating methods such as physical simulation experiments with similar materials, theoretical analysis, and engineering verification, this study systematically examined the developmental characteristics of fractures in …

Impacts Of Co2/Ch4/N2 Adsorption/Desorption On The Macromolecular Structure Of Anthracite: Insights From In Situ Raman Spectroscopy, Wang Tian, Pan Jienan, Li Meng, Wang Kai, Tang Zhuyun, Cheng Nannan, Hou Quanlin

Coal Geology & Exploration

Objective and Methods The adsorption/desorption of coalbed methane (CBM) not only induces the macroscopic deformations of coals but also significantly alters their macromolecular structures, with different gases exhibiting greatly varying mechanisms and influence degrees. Utilizing an independently developed in situ laser Raman spectroscopy system, this study revealed the differential structural responses and mechanisms of anthracite under CO₂, CH₄, and N₂ injection. Results and Conclusion Experimental results indicate that gas injection led to notable blue shifts in the D₄, D, D₃, and G peaks characterizing the microcrystalline structures of coals. In contrast, …

Log-Based Identification Of Sedimentary Facies In Coal Measures In The Southern Wuxiang Block, Shanxi Province, China, Jin Yi, Tian Yunqing, Song Huibo, Hu Bin, Yu Zhenfeng

Coal Geology & Exploration

Objective The Carboniferous and Permian coal-bearing strata in the southern Wuxiang block, Qinshui Basin, Shanxi Province, China contain abundant coalbed methane (CBM) resources. To develop intelligent discrimination technology for CBM exploration in this block, it is necessary to establish lithology discrimination criteria based on log data, reveal the response relationships between logging and sedimentary facies, and determine sedimentary patterns. Methods Using a comprehensive analysis of lithologies, sedimentary facies, and logging facies, this study systematically investigated the distributions of logging and sedimentary facies in the Shanxi and Taiyuan formations—the primary coal-bearing strata in the southern Wuxiang block. By comprehensively analyzing the …

Fractures And Their Macro-Mesoscopic Mechanical Evolution Pattern In Coals In The Benxi Formation, Ordos Basin, Zhu Boxu, Yang Xu, Li Gaoren, Li Gao, Feng Jiaxin

Coal Geology & Exploration

Objective This study aims to determine the relationship between multi-scale fracture characteristics and the mechanical behavior of deep coals, thereby helping gain further insights into the mechanisms behind the macro-mesoscopic damage and failure of the coals and providing a scientific basis for the stability assessment and mechanical modeling of deep coalbed methane (CBM) reservoirs. To this end, it is necessary to examine the differences in the coals’ mechanical properties under varying scales. Methods This study conducted uniaxial and triaxial mechanical tests, nanoindentation experiments, and CT scanning of the No. 8 coal seam in the Benxi Formation within the Ordos Basin. …

Spatial Distribution Of Coalbed Methane Migration Pathways And Selection Of Optimal Target Areas For Coalbed Methane Extraction For Abandoned Mines, Liu Qinjie, Yang Youxing, Wu Benniu, Duan Minke, Deng Zhuoyue, Guo Chenye, Sun Qiang

Coal Geology & Exploration

Objective and Methods The spatial distribution and long-term evolution of effective migration pathways determine the migration pathways of residual coalbed methane (CBM) in abandoned mines. Furthermore, they provide an important basis for selecting the optimal target areas for CBM extraction drilling in abandoned mines and maximizing extraction efficiency. This study investigated the first mining area at the first horizontal elevation of the Songzao Coal Mine in Chongqing. Using a comprehensive approach that integrated theoretical analysis, numerical simulations, and physical simulation experiments using similar materials, this study systematically examined the distribution patterns of effective CBM migration pathways in abandoned mines under …

Mechanisms Underlying Responses Of Pore Structures In Continental Oil Shale To Microwave Pyrolysis, Lyu Pengrui, Yuan Shihao, Geng Jishi, Li Delu, Zhang Huiyuan, Ge Zhenlong

Coal Geology & Exploration

Objective and Methods Microwave pyrolysis technology holds great potential to achieve clean energy conversion and efficient energy utilization of oil shale resources. This study investigated oil shale in the Triassic Yanchang Formation, Ordos Basin. Through microwave pyrolysis experiments under different power values (600 W, 800 W, and 1000 W) conducted using a microwave equipment monitoring system, this study tested the gas products generated during pyrolysis. Using the nitrogen adsorption method, this study compared and analyzed the pore structure characteristics between the original oil shale and samples after microwave heating under different power values. Additionally, the mechanisms behind damage to oil …

Spatiotemporal Evolution Pattern Of The Inertial Horizontal Displacement Of Mining Overburden And A Surface Prediction Model Considering Inertial Horizontal Displacement, Chen Yuanfei, Wang Lei

Coal Geology & Exploration

Objective Substantial measured data indicate that the along-strike horizontal displacement of the surface tends to be nonzero in the central part of the mining-affected zone. This phenomenon deviates from traditional understanding, leading to systematic deviations in the predicted results of the traditional prediction model for horizontal displacement. Methods This study investigated mining face 1414 of the Guqiao Coal Mine in the Huainan mining area, Anhui Province. Using measured data and numerical simulation methods, this study explored the spatiotemporal evolution of the horizontal displacement within the mining overburden and of the surface. Then, it analyzed the sources, patterns, and distribution characteristics …

Deterioration And Instability Mechanisms Of Water-Rich And Weakly Cemented Open-Pit Slopes, Wang Ming, Wu Zhang, Xu Changyou, Zhao Fu, Meng Xiangchun, Shi Bin, Liu Jingyu, Xu Yongchao, Wang Jingwei, Zhao Lichun

Coal Geology & Exploration

Background During the mining of an open-pit mine, denudated layers contain loose Neogene and Quaternary aeolian, alluvial, and diluvial deposits, facilitating water storage and conduction. This is prone to cause slope degradation and instability, severely threatening mining safety. Methods Based on results from field surveys and laboratory experiments, this study systematically analyzed the impacts of groundwater on the weak layer along a slope of an open-pit mine in the Huolinhe Coalfield, Inner Mongolia, focusing on its softening effect on mudstones. By establishing a mechanical model for unconsolidated strata, this study derived an equation for calculating the seepage force in the …

3d Advanced Geological Prediction Based On Reflected Seismic Waves And Its Application Effects, Cai Sheng

Coal Geology & Exploration

Objective For the advance geological prediction of tunnels based on reflected seismic waves, the traditional 2D observation method tends to cause spatial positioning deviations of anomalies. To overcome this limitation, this study developed a 3D seismic wave-based advance geological prediction method according to the actual geometries of tunnels. Methods Using the technical path consisting of theoretical analysis, numerical simulation, and engineering verification, this study solved key technical challenges including 3D wavefield reconstruction, spatial modeling, and migration imaging in the 3D detection system. Based on the principle of geometric seismology, this study demonstrated the enhancement effects of 3D observation on the …

A Time Series Forecasting Model Integrating Spatial Features For Inter-Borehole Resistivity And Its Application, Wang Jianghong, Liu Shuo, Wang Gang, Xue Wuqiang, Li Bofan

Coal Geology & Exploration

Background Mine resistivity prediction serves as a core technique for water hazards monitoring in coal mines. However, due to sparse monitoring points and insufficient spatial resolution, conventional prediction approaches fail to capture dynamic resistivity variations under complex geological conditions.Objective and Methods To address this challenge, this study developed a deep learning-based time series forecasting model integrating spatial features for inter-borehole resistivity. Using a prediction framework constructed based on long short-term memory (LSTM) and critical spatial monitoring points selected through Pearson correlation analysis, this model (also referred to as the LSTM model) enabled high-precision prediction of resistivity in unknown areas. …

Parameter Characteristics And Rock-Breaking Mechanisms Of Horizontal Drilling Of Underground Collapsed Bodies In Coal Mines, Yao Ningping, Dou Xuqian, Han Zhaoyang, Zhang Guohua, Sun Yuchen, Li Hao, Wang Li

Coal Geology & Exploration

Objective With continuously increasing coal mining depth, the risks of hazards such as roof collapse and personnel entrapment caused by high in situ stress and mining-induced pressure have significantly intensified. Drilling emerges as a key means of rapidly establishing rescue passageways. However, the drilling process tends to face multiple challenges, including complex geological structures, unstable collapsed bodies, and low drilling efficiency. Methods This study aims to reveal the rock-breaking mechanisms during the drilling of collapsed bodies, optimize drilling parameters to ensure reliable borehole formation, and achieve efficient drilling of collapsed bodies. To this end, this study developed a large-scale experimental …

A Design Method For Timeliness Optimization Of The Round-Trip Actuating Mechanisms Of Rescue Vehicle-Mounted Drilling Rigs, Cao Chao, Mao Bingquan, Zhang Zhonghai, Chang Renqi, Zhao Jiyun, Han Jing, Huang Di

Coal Geology & Exploration

Objective In the field of mine accident rescue, creating vertical rescue channels through surface drilling operations using a rescue vehicle-mounted drilling rig (RVMDR) proves the most effective. However, the limitation of the vehicle’s load capacity necessitates balancing the driving speeds and stability of the round-trip actuating mechanisms. Furthermore, establishing an optimization design and configuration system of parameters to maximize the operational capacities of these actuating mechanisms plays a key role in ensuring rescue efficiency. Methods By establishing a multiple spatiotemporal planning model for the round-trip actuating mechanisms of the RVMDR, this study determined the value ranges and design processes of …

Housing Crisis Outlook In Mountain West Metros, 2023, Kian Parikh, Yiselle Olivas Ruiz, Ivan Sun, Olivia K. Cheche, Caitlin J. Saladino, William E. Brown Jr.

Housing & Real Estate

This fact sheet presents 2023 data on housing market conditions in seven large metros across the five Mountain West states of Arizona, Colorado, Nevada, New Mexico, and Utah. The Lending Tree report, “Portland, Ore., Has Worst Housing Crisis Outlook – Here’s Why,” includes data on the 100 largest metros in the U.S. This fact sheet focuses on housing crisis outlook data for Mountain West metros appearing among the largest 100 metros in the nation: Phoenix, AZ; Tucson, AZ; Colorado Springs, CO; Denver, CO; Las Vegas, NV; Albuquerque, NM; and Salt Lake City, UT.

Moving At Warp Speed Toward Developing The Cyborg Soldier, James Giordano, Diane Dieuliis

Strategic Insights

This commentary examines how rapidly advancing technologies are reshaping the future of the military warfighter. The convergence of artificial intelligence, neurotechnology, biotechnology, and human-machine interfaces is moving defense innovation toward enhanced or “cyborg” soldiers capable of improved performance, endurance, and decision-making. While these developments promise operational advantages, they also raise serious ethical, legal, and strategic concerns. Questions about autonomy, vulnerability to cyber manipulation, long-term health effects, and international norms must be addressed before such capabilities become widely deployed. The article argues that technological momentum should not outpace governance and doctrine. To ensure responsible innovation, policymakers must develop clear oversight mechanisms …

Interleukin-22 And Interleukin-22 Binding Protein Signaling Axis Influences Intubation Status In Trauma, Augustus E. Anderson, Jacob Broome, Aaron L. Albuck, Megan Shenk, Valeria Noguera, Wid Covey, Alison Smith, Juan Duchesne, Danielle Tatum, Christine M. Bojanowski, Derek Pociask, Jay K. Kolls, Olan Jackson-Weaver, Sharven Taghavi

School of Medicine Faculty Publications

Background: Interleukin-22 is a cytokine involved in mucosal immunity, whereas interleukin-22 binding protein is a soluble receptor that can potently block interleukin-22. The role of interleukin-22 and interleukin-22 binding protein in trauma remains unclear. This study investigates whether IL-22 levels are associated with intubation in patients with trauma. We hypothesized interleukin-22 levels would be lower in intubated patients. Methods: Plasma samples were prospectively obtained in the trauma bay at consecutive Level 1 activations from November 2021 to November 2022. Patients were categorized as having respiratory failure (intubated) or as controls (nonintubated). Two-to-one case-control matching was conducted based on age, sex, …

Hepcidin, Incident Heart Failure, And Cardiac Dysfunction In Older Adults: The Aric Study, Iman A F Aboelsaad, Brian L Claggett, Victoria Lamberson, Pranav Dorbala, Kunihiro Matsushita, Pamela Lutsey, Bing Yu, Brandon W Lennep, Youssef M K Farag, Amil M Shah, Leo F Buckley

Faculty, Staff and Student Publications

Aims: Hepcidin regulates plasma and tissue iron levels. We studied the association of hepcidin levels with the risk of incident heart failure (HF) and cardiac dysfunction in older adults.

Methods and results: We included adults from the ongoing, longitudinal Atherosclerosis Risk in Communities (ARIC) study, who were free from prevalent anaemia and HF at Visit 5 (2011-13) and had available hepcidin and covariate data. Associations of plasma hepcidin levels with overall adjudicated incident HF, HF with reduced ejection fraction (HFrEF), and HF with preserved ejection fraction (HFpEF) were assessed using multivariable Cox proportional hazards regression models. Cross-sectional associations of hepcidin …

Cultivating Climate And Culture: New Jersey Principals' Use Of Sel In Pk-12 Schools, Michelle Papa

Theses and Dissertations

The purpose of this qualitative, intrinsic case study is to explore how PK-12 principals in New Jersey perceive their approaches to leadership through their own social and emotional learning (SEL). With growing demands placed on school leaders, the study examines how principals integrate the five SEL competencies (self-awareness, self- management, social awareness, relationship skills, and responsible decision-making) into their leadership practices to positively impact school climate and culture. Through semi- structured interviews and document analysis, ten principals revealed that SEL is not only essential for student and staff well-being but also central to their own leadership development. Findings indicate that …

Decolonizing Links Between International Scholarships And Peace Insights From A Critical Realist Study In Palestine, Anas N. Almassri

Journal of Comparative & International Higher Education

In this article, I summarize my doctoral research of the potential contribution of international graduate scholarships to peace in the occupied Palestinian territory (OPT). The research challenges predominant explanations of scholarships' contribution to peace on account of advancing human and global capitals and facilitating Western-style liberal-democratic socialization. Within a critical realist paradigm, interview and documentary data from 32 Palestinian scholarship alumni were analyzed in a three-stage process. First, the descriptive findings show that the participants perceive significant gains from scholarships in their academic, career, and multidimensional identity development. Second, the inferential findings demonstrate that these gains represent increased effective ability …

Inaction As Nonformal Reaction: Rethinking Crime Perception In The Era Of Data Breaches, Irnasya Shafira Hadi

Jurnal Kriminologi Indonesia

This study analyses the Indonesian public’s response to government data breaches and advocates for an expanded defintion of nonformal reactions to crime in the digital context. It argues that existing criminological frameworks, particularly Mustofa’s (2021) model—which views nonformal reactions as active and confrontational behaviours such as demonstrations or vigilantism—should also acknowledge inaction, apathy, and emotional disengagement as valid public reactions. This paper employs a conceptual-qualitative approach, combining an interdisciplinary literature review, interpretive policy analysis of the Personal Data Protection Law, and triangulation with digital behaviour data to develop its analysis. This paper reframes apathy as a significant criminological indicator of …