Digital Commons Network^™

Distributed Coherent Beamforming At 60 Ghz Enabled By Optically-Established Coherence, Drake Silbernagel, Yu Rong, Isabella Lenz, Prithvi Hemanth, Carl Morgenstern, Owen Ma, Nolan Matthews, Nadar Zaki, Kyle W. Martin, John D. Elgin, Jacob Holtom, Daniel W. Bliss, Kimberly Frey

Space Dynamics Laboratory Publications

We implement and experimentally demonstrate a 60 GHz distributed system leveraging an optical time synchronization system that provides precise time and frequency alignment between independent elements of the distributed mesh. Utilizing such accurate coherence, we perform receive beamforming with interference rejection and transmit nulling. In these configurations, the system achieves a coherent gain over an incoherent network of N nodes, significantly improving the relevant signal power ratios. Our system demonstrates extended array phase coherence times, enabling advanced techniques. Results from over-the-air experiments demonstrate a 14.3 dB signal-to-interference-plus-noise improvement in interference-laden scenarios with a contributing 13.5 dB null towards interference in …

Police Chief Turnover In Texas: Do Institutional Environments Matter?, Yudu Li

Criminal Justice Faculty Publications

The field of organizational studies has extensively examined factors influencing the turnover and succession of public officers, yet limited attention has been given to chiefs of police. Using institutional theory as a framework, this study explores police chief turnover by focusing on the institutional environment and the relationships between police chiefs and key individuals and entities within their communities. Utilizing survey data collected from police chiefs attending mandatory training programs designed for new appointees, the analysis reveals that police chief turnover is substantially associated with the quality of relationships with key stakeholders within the institutional environments, both individually and collectively. …

Randomized Trial: Peppermint Oil (Menthol) Pharmacokinetics In Children And Effects On Gut Motility In Children With Functional Abdominal Pain: 540 Mg Vs. 900 Mg Dose Comparison, Robert J Shulman, Bruno P Chumpitazi, Daniel Gonzalez, Uttam Garg, Salma Musaad, Jiali Wen, Gregory L Kearns

Children’s Nutrition Research Center Staff Publications

Aims: There is a paucity of information on the pharmacokinetics (PK) and pharmacodynamics (PD) of menthol, the active ingredient in peppermint oil (PMO). We studied the PK of menthol (540 and 900 mg) in children and measured their effects on gut transit/contractility.

Methods: Children 7-12 years of age with functional abdominal pain underwent wireless motility capsule (WMC) testing. One week later, they were randomized to 540 mg or 900 mg of oral enteric-coated PMO. Blood was sampled over 24 h to determine menthol PK. The WMC test was repeated while they took their respective dose (180 mg thrice or 180 …

Storage Location Optimization In Automated Storage And Retrieval Systems: A Deep Reinforcement Learning Approach, Lingjun Wang, Aldy Gunawan, Pieter Vansteenwegen

Research Collection School Of Computing and Information Systems

This study investigates the optimization of storage location in automated storage and retrieval systems (AS/RS). We introduce an optimization approach based on the Deep Q-Network (DQN) algorithm to enhance warehouse task efficiency and minimize stacker travel during storage and retrieval. To accelerate the algorithm training process, we integrate a prioritized experience replay mechanism. Furthermore, we decouple action selection from value estimation within the DQN framework to address the issue of value overestimation. The proposed model is evaluated against three heuristic methods. The experimental results demonstrate that our approach significantly outperforms these baselines.

An Efficient Security-Enhanced Accountable Access Control For Named Data Networking, Jianfei Sun, Yuxian Li, Xuehuan Yang, Guomin Yang, Robert H. Deng

Research Collection School Of Computing and Information Systems

Named Data Networking (NDN) is embraced as the crucial implementation of Information-Centric Networking (ICN), enhancing content distribution and caching efficiency through edge routers. However, existing NDN architectures face significant security and privacy challenges, including: (a) a lack of secure and efficient access control; (b) inadequate support for flexible and selective content management by content publishers; (c) insufficient implementation of accountability and privilege revocation mechanisms. To handle these challenges, we propose ESAS, the first-ever Efficient Security-enhanced Accountable Access Control Scheme for NDN. Specifically, our ESAS incorporates anonymous authentication using group signatures at network routers to prevent unauthorized access, employs key-aggregation-based access …

Educator Perceptions Of Devops Teaching Recommendations And Their Alignment With Common Challenges, Marcelo Romulo Fernandes, Pablo Paiva, Samuel Lucas De Moura Ferino, Roberta Coelho, Christoph Treude, Eduardo Aranha, Uirá Kulesza

Research Collection School Of Computing and Information Systems

DevOps education presents unique pedagogical challenges due to the diversity of tools, rapid technological change, and the multidisciplinary nature of the field. Although previous work has proposed recommendations to address these challenges, it is unclear how educators perceive these recommendations and whether they align with the challenges encountered in practice. In this paper, we present a quantitative and qualitative methods study involving 11 DevOps educators who interacted with Improve, a tool that presents a curated set of educational challenges and recommendations derived from previous literature. Educators indicated which recommendations they already use, which they intend to use, and which challenges …

Rethinking Cognitive Complexity For Unit Tests: Toward A Readability-Aware Metric Grounded In Developer Perception, Wendkûuni C. Ouédraogo, Yinghua Li, Xueqi Dang, Xin Zhou, Anil Koyuncu, Jacques Klein, David Lo, Tegawendé F. Bissyandé

Research Collection School Of Computing and Information Systems

Automatically generated unit tests-from searchbased tools like EvoSuite or LLMs-vary significantly in structure and readability. Yet most evaluations rely on metrics like Cyclomatic Complexity and Cognitive Complexity, designed for functional code rather than test code. Recent studies have shown that SonarSource's Cognitive Complexity metric assigns nearzero scores to LLM-generated tests, yet its behavior on EvoSuitegenerated tests and its applicability to test-specific code structures remain unexplored. We introduce CCTR, a Test-Aware Cognitive Complexity metric tailored for unit tests. CCTR integrates structural and semantic features like assertion density, annotation roles, and test composition patterns-dimensions ignored by traditional complexity models but critical for …

Improving Co-Decoding Based Security Hardening Of Code Llms Leveraging Knowledge Distillation, Dong Li, Shanfu Shu, Meng Yan, Zhongxin Liu, Chao Liu, Xiaohong Zhang, David Lo

Research Collection School Of Computing and Information Systems

Large Language Models (LLMs) have been widely adopted by developers in software development. However, the massive pretraining code data is not rigorously filtered, allowing LLMs to learn unsafe coding patterns. Several prior studies have demonstrated that code LLMs tend to generate code with potential vulnerabilities. The widespread adoption of intelligent programming assistants poses a significant threat to the software development process. Existing approaches to mitigating this risk primarily involve constructing secure data that are free of vulnerabilities and then retraining or fine-tuning the models. However, such an effort is resource intensive and requires significant manual supervision. When the model parameters …

Exploring Parameter-Efficient Fine-Tuning Techniques For Code Generation With Large Language Models, Martin Weyssow, Xin Zhou, Kisub Kim, David Lo, Houari A. Sahraoui

Research Collection School Of Computing and Information Systems

Large language models (LLMs) demonstrate impressive capabilities to generate accurate code snippets given natural language intents in a zero-shot manner, i.e., without the need for specific fine-tuning. While prior studies have highlighted the advantages of fine-tuning LLMs, this process incurs high computational costs, making it impractical in resource-scarce environments, particularly for models with billions of parameters. To address these challenges, previous research explored in-context learning (ICL) and retrieval-augmented generation (RAG) as strategies to guide the LLM generative process with task-specific prompt examples. However, ICL and RAG introduce inconveniences, such as the need for designing contextually relevant prompts and the absence …

Actg 306.01: Principles Of Financial Reporting Ii, Steven Mitsuda

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Bmgt 640.V61: Organizational Behavior, Mazen R. Fadel

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Csd 330.01: Anatomy And Physiology Of The Speech And Swallowing Mechanisms, Trudi F. Mingus

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Anty 101h.50: Anthropology And The Human Experience, Erin D. Rosenkrance

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Cula 101.01: Introduction To Knife Skills And Butchery, Wilbert P. Gahagan

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Nrsg 245.50: Adult Nursing Ii Clinical, Michele R. Noonan

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Wild 346.00: Wildlife Physiological Ecology, Creagh W. Breuner

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Heo 151.01: Service And Maintenance, Tim M. Peterson

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Comx 480.01: Health Communication, Heather L. Voorhees

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Frch 101.01: Elementary French I, Anna K. Lokowich

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Phl 101l.01: Introduction To Philosophy, Jeffrey E. Stephenson

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Psci 330.01: Japanese Politics & Society, Kristin Vekasi

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Behavior Change Communication Strategies On Human Immunodeficiency Virus /Acquired Immunodeficiency Syndrome Risk Reduction For Long-Distance Truckers In Kenya, Cyrus Mutie, John Gachohi, Kawira Kithuci, Grace Mbuthia

School of Nursing & Midwifery, East Africa

Background Long-distance truckers (LDTs) not only experience heightened risk of human immunodeficiency virus (HIV) infections due to risky sexual networks, but are also hard to reach with consistent risk reduction messages due to their often disruptive work schedules. Besides, evidence of the existing behavior change communication (BCC) strategies to enhance HIV/ acquired immunodeficiency syndrome (AIDS) risk reduction is limited. Thus, the study sought to explore the most effective and preferred BCC strategies for adoption among LDTs in Kenya.

Methods and Methodology Nine key informants and 18 in-depth interviews were used to gather qualitative data from purposively sampled participants at Kenya's …

Civil Servant Disobedience: An Alternative Legal Strategy To Prevent Bureaucratic Pathology, Richo Andi Wibowo

The Indonesian Journal of Socio-Legal Studies

This paper seeks to provide conceptual and empirical justifications for civil servants to engage in disobedience to curb bureaucratic pathology. Various civil servants have long complained that they face illegal instructions from their superiors. The cases discussed here are from public procurement, which has a dimension of political corruption, a recurring problem in many places in Indonesia. Thus, the problem shall be seen as a bureaucratic pathology rather than as maladministration. As the reporting of superiors to legal enforcers may be too risky, the disobedience can be accomplished by refusing to cooperate with superiors who give illegal instructions. The term …

Preventing Workplace Violence: A Strategic Imperative For Today’S Organizations, Alan Saquella

Publications

Workplace violence is a critical and growing concern for organizations across all industries. It encompasses a wide spectrum from bullying and verbal threats to physical assaults and, in the most tragic cases, homicide. While acts of extreme violence often dominate news headlines, they are typically preceded by missed warning signs and failed interventions.

Behavioral Assessment Ai Software: Enhancing Polygraph And Investigative Interviewing, Alan Saquella

Publications

In the rapidly evolving world of security, law enforcement, and investigative sciences, professionals are increasingly turning to advanced technologies to supplement tried-and-true methodologies. One emerging innovation is behavioral assessment software, designed to enhance both preemployment screening and investigative interviewing. Acting as a form of modern human intelligence collection, these tools enable examiners and investigators to gather deeper insights directly from candidates and subjects, revealing behavioral cues and risk indicators that might otherwise remain hidden (Vrij, 2008).

Replication Of Blood Dna Methylomic Signatures Associated With Cerebrospinal Fluid Levels Of Ykl-40 And Nfl Biomarkers, Timo Kaleck, Rafael Campos-Martin, Amanda Cano, Maria Victoria Fernández, Pamela Martino-Adami, Luca Kleineidam, Victor M Andrade Fuentes, Kumar P Tripathi, Kayenat Parveen, Raquel Puerta, Itziar De Rojas, Kishore A Ravichandran, Oliver Peters, Julian Hellmann-Regen, Josef Priller, Maria Gemenetzi, Anja Schneider, Jens Wiltfang, Emrah Düzel, Katharina Buerger, Robert Perneczky, Stefan Teipel, Christoph Laske, Frederic Brosseron, Marta Marquié, Daniel La Van Den Hove, Mercè Boada, Michael T Heneka, Michael Wagner, Natalie Marchant, Jean-Charles Lambert, Ruth Frikke-Schmidt, Frank Jessen, Agustín Ruiz, Alfredo Ramirez

Faculty, Staff and Student Publications

No abstract provided.

Drivers Of Frequent Emergency Department Use In Socioeconomically Disadvantaged Older Adults: A Qualitative Study, Anita Chary, Annika Bhananker, Michelle Suh, David Leavitt, Elise Brickhouse, Shreya Tamma, Jose Ramirez, Mariana Rios, Aanand D Naik, Margaret Samuels-Kalow, Naomi George

Faculty, Staff and Student Publications

Background: The emergency department (ED) is the safety net for and a common point of healthcare access for socioeconomically disadvantaged older adults. Little is known about socioeconomically disadvantaged older ED patients' perspectives on their health, healthcare access, and ED use. Such insights could guide tailored interventions to address unmet clinical and health-related social needs (HRSN).

Methods: We performed a qualitative study with older adults in a single public safety net hospital ED. We interviewed patients age 60+ who had ≥ 4 ED 4 visits in the past year. Semi-structured interviews explored perceived health needs and motivations underlying ED visits. We …

Identifying Geographic Cold Spots Of Pcos Diagnosis In Texas: A Spatial Analysis Of Underdiagnosis And Rural Disparities, Ryan Ramphul, Geethika Yalavarthy, Jooyeon Lee

Faculty, Staff and Student Publications

Context: Polycystic ovary syndrome (PCOS) is a common yet underdiagnosed endocrine disorder with substantial reproductive and metabolic consequences. Although disparities in PCOS care have been documented, few studies have employed spatial methods to identify areas of potential underdiagnosis.

Objective: This study uses geospatial analysis to detect cold spots of PCOS clinical encounters across Texas and investigates neighborhood characteristics associated with these areas.

Methods: We analyzed inpatient and outpatient encounter data from the Texas Public Use Data File (PUDF) between 2018 and 2024 to identify PCOS-related visits (International Classification of Diseases, revision 10: E28.2). ZIP code tabulation area (ZCTA)-level PCOS encounter …

Transforming The World With Reparations, Ingrid Wuerth Brunk, Monica Hakimi

Vanderbilt Law School Faculty Publications

This special issue of the American Journal of International Law—devoted entirely to reparations in international law—offers a range of perspectives on reparations for large-scale harms relating to colonialism, slavery, industrialization, and transboundary pollution. As the symposium authors describe, the gap between the reparations that justice might demand and the ones that international law provides is enormous. The international law for reparations does not come close to remedying such harms and is not poised to do so anytime soon.

Is There Life In The Ruins? A Look At Post-Sveen Contract Clause Jurisprudence, James W. Ely, Jr.

Vanderbilt Law School Faculty Publications

Seven years ago, in Sveen v. Melin, the Supreme Court applied the prevailing multipart test and rejected a contract clause claim. The result was hardly a surprise. The Court has not invoked the contract clause to invalidate a state law in more than forty years. The decision broke no new ground and seemingly signaled that the Court was content with the current multipart test, one that appears calculated to uphold state regulatory authority rather than vindi- cate the rights of contracting parties. Justice Neil Gorsuch force- fully dissented in Sveen, insisting that the multifactor test "seems hard to square with …