Digital Commons Network^™

The Shorthorn: October 7, 1977

The Shorthorn Newspaper Collection: 1970s

No abstract provided.

The Shorthorn: September 8, 1977

The Shorthorn Newspaper Collection: 1970s

No abstract provided.

The Shorthorn: September 9, 1977

The Shorthorn Newspaper Collection: 1970s

No abstract provided.

Corrigendum To "Face-Magic Labelings Of Polygonal Graphs", Wai Chee Shiu, Richard M. Low, Andy K. Liu

Theory & Applications of Graphs

In this note, we correct a misstatement of a theorem.

The Effect Of A Multiple Intelligences Theory-Based Program On Tenth-Grade Students' Reading Comprehension Skills In Jordan, Musa Mayyas

Jordan Journal of Applied Science-Humanities Series

This study investigated the effect of a multiple intelligences theory-based program on tenth-grade students' reading comprehension skills in Jordan. The researcher used a quasi-experimental design in which the participants were divided into four groups. The participants, chosen through purposeful sampling, consisted of 110 male and female tenth-grade students from two different schools in the Ramtha Directorate of Education. The first control group consisted of 28 female students, while the first experimental group included 27 female students from the same school. The second control group comprised 24 male students, whereas the second experimental group consisted of 31 male students from the …

The Effect Of The (Pq4r) Strategy On Seventh Grade Students' Acquisition Of Mathematical Concepts, Ali Abu Sabra

Jordan Journal of Applied Science-Humanities Series

This study aimed to investigate the effect of the PQ4R strategy on the acquisition of basic mathematical concepts among seventh-grade students. To achieve this purpose, seventh-grade students were deliberately selected from a school in the Qweismeh Directorate of Education in Amman. The sample was divided into two sections: an experimental group consisting of 35 students who studied according to the PQ4R strategy, and a control group consisting of 35 students who studied using the traditional method. After confirming the reliability and validity of the tests, the results showed that there were statistically significant differences in the acquisition of mathematical concepts …

About The Contributors

Impact: A Journal of Community and Cultural Inquiry in Education

No abstract provided.

The Role Of The School Principal In Teachers' Reflective Practice And The Development Of Their Leadership Capacities As Perceived By Secondary School Teachers In Benghazi, Eman Elfaidy, Aref Al-Attari

Jordan Journal of Applied Science-Humanities Series

This study aimed to identify the role of secondary school principals in Benghazi, Libya, in the reflective practice of their teachers and the development of teachers' leadership potential in those schools. The study employed a descriptive methodology. A questionnaire consisting of fifty-three items was administered to a sample of 363 teachers, representing 2.5% of the study population in the secondary schools of Benghazi. The findings indicate that principals minimally fulfill their role in the reflective practice of teachers and in the development of their leadership potential. Additionally, the results highlight a significant relationship between reflective practice and the development of …

Publication Citations (Calendar Year 2024), Valparaiso University

Valparaiso Scholarship and Creative Works Reception

No abstract provided.

Strategies To Improve Project Portfolio Management In The Pharmaceutical Industry, Emely Nhi Thi Ai Nguyen

Walden Dissertations and Doctoral Studies

Poor management of pharmaceutical project portfolios can negatively impact a pharmaceutical company’s product development and profitability. Project portfolio managers must ensure the successful development of new products in the pharmaceutical pipeline as the financial investment in new product development is significant and if not managed effectively can negatively impact profitability and prevent launch of new treatment therapies. Grounded in the project portfolio management framework, the purpose of this qualitative pragmatic inquiry study was to explore successful project portfolio management (PPM) strategies that drug project portfolio managers use to contribute to business success. The participants were six employees that managed portfolios …

Instructional Leadership Practices To Advance Secondary Student Mathematics Achievement In A British Commonwealth Country, Dawn Agdomar-Jean

Walden Dissertations and Doctoral Studies

The problem addressed in this study was that school leaders are challenged in providing instructional leadership to teachers to advance secondary students' mathematics achievement in a British Commonwealth Country (BCC). The purpose of this basic qualitative study was to investigate secondary school leaders’ perceptions of the challenges to providing instructional leadership practices found to be effective to support teachers to advance secondary students' mathematics achievement in a BCC. The conceptual framework for this study was Hallinger and Murphy's model of instructional leadership. A self-designed semistructured interview protocol with open-ended questions was used to interview participants. Purposive sampling was used to …

Gravitational Torques From Lopsided Young Stellar Component Sustain High Black Hole Accretion Rates In Ngc 4593, N. Winkel, K. Jahnke, J. A. Fernández-Ontiveros, T. A. Davis, F. Combes, M. Gaspari, J. Neumann, M. Singha, J. S. Elford, Vardha N. Bennert, M. A. Malkan

Physics

Context. Supermassive black holes (SMBHs) grow primarily through gas accretion, observed as active galactic nuclei (AGNs). While mergers can drive luminous AGN episodes, secular processes may fuel a substantial portion of cosmic black hole growth. Whether these mechanisms can sustain high black hole accretion rates remains uncertain.

Aims. The aim of this study is to identify the secular mechanism driving high SMBH accretion rates, by targeting a galaxy with a moderately massive SMBH, high central gas densities, accretion rates of a few percent of the Eddington limit, and gas kinematics resolved close to black-hole-dominated scales.

Methods. A blind search led …

Design And Optimization Of Anode Catalysts For Direct Ethanol Fuel Cells: Advances And Challenges In C-C Bond Activation And Selective Modulation Of The C1 Pathway, Kai-Chi Qin, Meng-Tian Huo, Yu Liang, Si-Yuan Zhu, Zi-Hao Xing, Jin-Fa Chang

Journal of Electrochemistry

Direct ethanol fuel cells (DEFCs) are a promising alternative to conventional energy sources, offering high energy density, environmental sustainability, and operational safety. Compared to methanol fuel cells, DEFCs exhibit lower toxicity and a more mature preparation process. Unlike hydrogen fuel cells, DEFCs provide superior storage and transport feasibility, as well as cost-effectiveness, significantly enhancing their commercial viability. However, the stable C–C bond in ethanol creates a high activation energy barrier, often resulting in incomplete electrooxidation. Current commercial platinum (Pt)- and palladium (Pd)-based catalysts demonstrate low C–C bond cleavage efficiency (

Effect Of Saccharin On Crystallization Behavior Of Electroless Cobalt Plating, Yu-Xin Luo, Jing-Jing Wang, Lu Wang, Zi-Yi Yan, Yi Ma, Xin Bo, Jing-Shuang Dang, Zeng-Lin Wang

Journal of Electrochemistry

In the process of electroless cobalt plating, the saccharin additive can significantly change the surface morphology, texture orientation, and conductivity of the cobalt coating layer. When the amount of saccharin was 3 mg·L^–1, the cobalt coating transformed from disordered large grains to a honeycomb structure, with a preferred orientation of (002) facet on hexagonal close-packed (HCP) cobalt crystals. The resistivity of the cobalt film decreased to 14.4 μΩ·cm, and further decreased to 10.7 μΩ·cm after the annealing treatment. When the concentration of saccharin was increased, the grain size was gradually refined and a “stone forest” structure was observed, …

Superhydrophilic Porous Coooh Nano-Architecture With Abundant Oxygen Vacancies For Enhanced Urea Electrooxidation At Ampere-Level Current Densities, Wen-Jing Lv, Xiao-Man Tang, Xue-Tong Wang, Wen-Cai Liu, Jian-Wen Zhu, Guo-Jing Wang, Yuan-Zhi Zhu

Journal of Electrochemistry

The conversion of urea-containing wastewater into clean hydrogen energy has gained increasing attention. However, challenges remain, particularly with sluggish catalytic kinetics and limited long-term stability of urea oxidation reaction (UOR). Herein, we report the loosely porous CoOOH nano-architecture (CoOOH LPNAs) with hydrophilic surface and abundant oxygen vacancies (O_v) on carbon fiber paper (CFP) by electrochemical reconstruction of the CoP nanoneedles precursor. The resulting three-dimensional electrode exhibited an impressively low potential of 1.38 V at 1000 mA·cm⁻² and excellent durability for UOR. Furthermore, when tested in an anion exchange membrane (AEM) electrolyzer, it required only 1.53 V at …

The Birnirk To Thule Transition As Viewed From Radiocarbon And Tree-Ring Dating Within Two Adjacent Houses At Cape Espenberg, Northwest Alaska, Claire Alix, Lauren E. Y. Norman, Antony M. Krus, Juliette Taieb, Shelby L. Anderson, Dennis H. O'Rourke, Owen K. Mason

Anthropology Faculty Publications and Presentations

The transformation of the Birnirk culture into the Thule culture is essential in reconstructing the emergence of modern Inuit across Alaska and the larger Bering Strait. To this end, two adjacent semi-subterranean houses of late Birnirk and early Thule affiliation, respectively, at the Rising Whale (KTZ-304) site at Cape Espenberg were recently excavated and dated by radiocarbon and tree-ring measurements. We present the Bayesian analysis of the resulting large series of dates, demonstrating the lack of contemporaneity between the two features: the Birnirk house was occupied in the late twelfth to early thirteenth centuries AD, whereas the occupation of the …

The Effect Of Group Counseling On Hope With Diverse Undergraduates During Sustainability-Focused Internship, Hailey Spinks, Michael D. Hannon, Matthew Murray, Nina M. Goodey, Lora Billings, Amy Tuininga

PSEG Institute for Sustainability Studies Publications

Many adolescents report feeling overwhelmed, depressed, anxious, and hopeless in the face of global climate change. These feelings are both valid and antithetical to the necessary hope and courage it takes to address real-world environmental crises and contribute to meaningful societal impact. The Green Teams Program, an internship-based experiential learning initiative, prepares young professionals with skills and knowledge needed to address these challenges and provides an intentionally inclusive and safe environment for students from all backgrounds to do so. This structured environment includes psychoeducational group counseling among other supports. Intern self-assessments revealed significant gains in measures of Hope, Agency, …

Geol 64: Planetary Geology - Syllabus, Dara Laczniak

Open Educational Resources

This Open Educational Resources (OER) syllabus is for an introductory planetary geology course that utilizes results from space missions to expose students to the surface features, composition, geological activity, and probable history of the planets, moons, asteroids, and comets of the solar system. It also places space exploration into the context of larger societal issues such as global warming and natural resource availability and addresses topics such as the ethics of space exploration and hazards of space travel. This OER syllabus aims to foster student-centered learning, critical thinking, data analysis and communication skills, and creativity. Assigned readings are compiled into …

Computational Detection Of Articulation Transients In Clarinet Performance, Whitney L. Coyle, Max Griffin, Makayle S. Kellison

Faculty Publications

Accurate measurement of note-to-note transitions is essential for analyzing articulation in clarinet performance. Traditional methods rely on either subjective amplitude thresholds—such as the time between 5% and 95% RMS levels—or direct measurement of tongue-reed contact time using reed-mounted sensors. These approaches are limited by their dependence on user-defined parameters or invasive hardware. This study proposes a computational alternative: ΔT, a curvature-based metric defined as the time interval between surrounding minima in the second derivative of the mouthpiece pressure envelope. Using data from a sensor-equipped mouthpiece (SEM), we compare ΔT to both threshold-based timing (T_t) …

Multidimensional Monotonicity And Economic Applications, Frank Yang, Kai Hao Yang

Cowles Foundation Discussion Papers

We characterize the extreme points of multidimensional monotone functions from [0,1]ⁿ to [0,1], as well as the extreme points of the set of one-dimensional marginals of these functions. These characterizations lead to new results in various mechanism design and information design problems, including public good provision with interdependent values; interim efficient bilateral trade mechanisms; asymmetric reduced form auctions; and optimal private private information structure. As another application, we also present a mechanism anti-equivalence theorem for two-agent, two-alternative social choice problems: A mechanism is payoff-equivalent to a deterministic DIC mechanism if and only if they are ex-post equivalent.

An Antioxidant Approach To Ameliorate The Effects Of Radiation And Chemotherapy On Cognition, Raymond Anan Otoo

Theses and Dissertations

Acute Lymphoblastic Leukemia (ALL) is a hematologic malignancy that primarily affects children and young adults. While advancements in treatment—including chemotherapy and cranial irradiation—have significantly improved 5-year survival rates in children to nearly 90%, radiation-induced cognitive impairment (RICI) remains a persistent and debilitating side effect. The brain, particularly the hippocampus, is highly susceptible to radiation-induced oxidative stress and inflammation. In the treatment of ALL, the combined use of chemotherapy and radiotherapy contributes to a heightened oxidative burden, exacerbating the risk of cognitive dysfunction. Although previous studies have linked radiation exposure to neurocognitive decline, the molecular mechanisms underlying RICI and chemotherapy-induced cognitive …

Structure Regulation Engineering For Biomass-Derived Carbon Anodes Enabling High-Rate Dual-Ion Batteries, Rui Zhou, Rui Liu, Yun-Nuo Li, Si-Jie Jiang, Tian-Tian Jing, Yan-Song Xu, Fei-Fei Cao

Journal of Electrochemistry

Dual-ion batteries (DIBs) usually use carbon-based materials as electrodes, showing advantages in high operating voltage, potential low cost, and environmental friendliness. Different from conventional “rocking chair” type secondary batteries, DIBs perform a unique working mechanism, which employ both cation and anion taking part in capacity contribution at an anode and a cathode, respectively, during electrochemical reactions. Graphite has been identified as a suitable cathode material for anion intercalation at high voltages (> 4.8 V) with fast reaction kinetics. However, the development of DIBs is being hindered by dynamic mismatch between a cathode and an anode due to sluggish Li^{+ …}

2025 August 28 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.

Transparency And Openness In Scientific Publishing Among Malaysian Social Science Researchers, Noor Masliana Razlan

Student Works (2020-2029)

The global movement toward transparency and openness in scientific publishing (TOSP) has become integral in strengthening research integrity, accessibility, and reproducibility. While TOSP practices are increasingly embedded in science, technology, engineering, and mathematics (STEM) disciplines, their uptake remains limited and fragmented in the social sciences, especially within the Malaysian context. This study investigates how Malaysian social science researchers interpret, adopt, and implement TOSP practices, and how these are influenced by demographic variables such as age, gender, academic position, discipline, and research experience. Using a sequential mixedmethods approach, the study draws on qualitative interviews with 20 participants and survey responses from …

Mantle Flow And Fault Zone Related Seismic Anisotropy Revealed By A Dense Linear Broadband Array In Southeast Tibet, Jing Wu, Yinshuang Ai, Stephen S. Gao, Peixi Huang, Fansheng Kong, Deke Xu, Jianguo Song, Xinyu Gao, Mengyi Wei, Long Li, Jien Zhang, Yanbin Zhang, Yingying Zhang

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Southeast Tibet, a key region for the southeastward extrusion of the Tibetan Plateau, remains debated in terms of its tectonic deformation in response to the ongoing collision between the Indian and Eurasian plates. In this study, we applied shear-wave splitting analysis of core-refracted phases recorded by a newly deployed dense seismic array and six permanent stations to delineate crustal and mantle deformation processes. The observed fast polarization directions are predominantly aligned NNW–SSE, while the splitting delay times vary across four sub-blocks. The anisotropy pattern suggests a dominantly asthenospheric origin, consistent with southeastward-directed mantle flow associated with the extrusion of the …

Feasibility Evaluation Of Secure Offline Large Language Models With Retrieval-Augmented Generation For Cpu-Only Inference, Erick Tyndall, Torrey J. Wagner, Colleen Gayheart, Alexandre Some, Brent T. Langhals

Faculty Publications

Recent advances in large language models and retrieval-augmented generation, a method that enhances language models by integrating retrieved external documents, have created opportunities to deploy AI in secure, offline environments. This study explores the feasibility of using locally hosted, open-weight large language models with integrated retrieval-augmented generation capabilities on CPU-only hardware for tasks such as question answering and summarization. The evaluation reflects typical constraints in environments like government offices, where internet access and GPU acceleration may be restricted. Four models were tested using LocalGPT, a privacy-focused retrieval-augmented generation framework, on two consumer-grade systems: a laptop and a workstation. A technical …

The Core-Collapse Supernovae Particle Physics Interactions, Skylar G. Butler

Beyond: Undergraduate Research Journal

This study investigates the role of specific particle physics interactions in simulations of core collapse supernovae, with a focus on understanding how varying levels of inclusion impact the accuracy of gravitational wave predictions and results of simulations. Different research groups often approach these simulations with varying degrees of complexity, cutting corners by omitting certain reactions or simplifying others. This project systematically evaluates the implications of these choices, comparing the particle physics interactions included, the dimensionality of the simulations, and the governing equations used. Our goal is to identify how these factors influence the precision of numerical simulations. By providing a …

自然语言处理在评估数据中的应用流程：基于R的教程, Constanza Mardones-Segovia, Yaxuan Yang, Shiyu Wang, Allan S. Cohen

Chinese/English Journal of Educational Measurement and Evaluation | 教育测量与评估双语期刊

自然语言处理（Natural Language Processing, NLP）在教育测评中对文本作答的分析应用日益广泛。NLP 的关键环节之一是对被试的书面作答进行清理与结构化，以构建保留词汇语法、语义与语用特征的输入数据，从而支持相关特征的提取。本文旨在为教育测量任务中使用 NLP 技术提供基本方法指导，系统介绍文本预处理、特征提取及构建性题型文本数据分析的关键步骤。此外，文中还提供了一个基于 R 的潜在狄利克雷分配（Latent Dirichlet Allocation, LDA）分析示例，以展示该处理流程的实际操作。

The Association Between Food Benefit Online Ordering And Redemptions: Evidence From The Special Supplemental Nutrition Program For Women, Infants, And Children, Junzhou Zhang, Chuanyi Tang, Kayoung Park, Qi Zhang

Department of Marketing Faculty Scholarship and Creative Works

Objective:

To examine how the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) online food benefit ordering could influence WIC benefit redemptions.

Design:

A cross-sectional study. We compare the average redemption rates between online ordering early adopters and non-adopters among WIC customers before and after implementing WIC online ordering. A propensity score-weighted difference-in-difference model was used to estimate the coefficients.

Setting:

The Oklahoma WIC programme and a grocery store chain in Oklahoma.

Participants:

12743 Oklahoma WIC households that had redeemed their food benefits at the grocery store chain in 2020.

Results:

WIC online ordering significantly positively affected redemption …

In Memoriam: Dick Peterson, Professor Emeritus Of Mathematics, Michelle Tedford

College of Arts and Sciences Newsroom

Dick Peterson, director of the University's first Freshman Orientation Week in 1966, "lived his life and career in service to UD."