Digital Commons Network^™

Shape Memory Polymers In 4d Printing: Investigating Multi-Material Lattice Structures, David Pokras, Yanika Schneider, Sohail Zaidi, Vimal K. Viswanathan

Faculty Research, Scholarly, and Creative Activity

This paper evaluates the design and fabrication of a thermoplastic polyurethane (TPU) shape memory polymer (SMP) using fused deposition modeling (FDM). The commercially available SMP filament was used to create parts capable of changing their shape following the application of an external heat stimulus. The characterization of thermal and viscoelastic properties of the SMP TPU revealed a proportional change in shape fixity and recovery with respect to heating and cooling rates, as well as a decreasing softening temperature with increasing shape memory history due to changes in the polymer microstructure. Inspired by the advancements in 3D and 4D printing, we …

Tai Chi Expertise Classification In Older Adults Using Wrist Wearables And Machine Learning, Yang Hu, Mengyue Huang, Jonathan Cerna, Rachneet Kaur, Manuel E. Hernandez

Faculty Research, Scholarly, and Creative Activity

Tai Chi is a Chinese martial art that provides an adaptive and accessible exercise for older adults with varying functional capacity. While Tai Chi is widely recommended for its physical benefits, wider adoption in at-home practice presents challenges for practitioners, as limited feedback may hamper learning. This study examined the feasibility of using a wearable sensor, combined with machine learning (ML) approaches, to automatically and objectively classify Tai Chi expertise. We hypothesized that the combination of wrist acceleration profiles with ML approaches would be able to accurately classify practitioners’ Tai Chi expertise levels. Twelve older active Tai Chi practitioners were …

Ultrathin Boron Growth Onto Nanodiamond Surfaces Via Electrophilic Boron Precursors, Krishna Govindaraju, Tyanna Supreme, Daniel N. Labunsky, Nicole Martin, Juan Miguel Del Rosario, Alana Washington, Ezhioghode O. Uwadiale, Solomon Adjei, Sandra Ladjadj, Cynthia V. Melendrez, Sang Jun Lee, Maria V. Altoe, Avery Green, Sebastian Riano, Sami Sainio, Dennis Nordlund, Abraham Wolcott

Faculty Research, Scholarly, and Creative Activity

Diamond as a templating substrate is largely unexplored, and the unique properties of diamond, including its large bandgap, thermal conductance, and lack of cytotoxicity, makes it versatile in emergent technologies in medicine and quantum sensing. Surface termination of an inert diamond substrate and its chemical reactivity are key in generating new bonds for nucleation and growth of an overlayer material. Oxidized high-pressure high temperature (HPHT) nanodiamonds (NDs) are largely terminated by alcohols that act as nucleophiles to initiate covalent bond formation when an electrophilic reactant is available. In this work, we demonstrate a templated synthesis of ultrathin boron on ND …

Digitization Of Photo Archives As An Effort To Preserve Information At The Library And Archives Service Of Bantul, Yogyakarta - Indonesia, Yeni Rahmawati, Dwi Ridho Aulianto

Library Philosophy and Practice (e-journal)

Photo archives are valuable sources of information with historical and cultural significance and, therefore, need to be preserved. However, the fragile and vulnerable physical condition of photo archives and the limited adequate storage facilities pose particular challenges for regional archival institutions like the Library and Archives Service of Bantul Regency (DISPUSIP Bantul). To address this issue, DISPUSIP Bantul has undertaken efforts to digitize photo archives to preserve the information they contain. This research aims to understand the process of digitizing photo archives undertaken by DISPUSIP Bantul. The research method used is descriptive qualitative, with data collection techniques through interviews and …

Pathways To Parenthood Among Transgender Men And Gender Diverse People Assigned Female Or Intersex At Birth In The United States: Analysis Of A Cross-Sectional 2019 Survey, Shalmali Sunil Bane, Juno Obedin-Maliver, Sachiko Ragosta, Jen Hastings, Mitchell R. Lunn, Annesa Flentje, Matthew R. Capriotti, Micah E. Lubensky, Diana M. Tordoff, Heidi Moseson

Faculty Research, Scholarly, and Creative Activity

Objective: To assess pathways to parenthood, pregnancy outcomes, future pregnancy desire, and fertility counseling experiences among a cross-sectional sample of transgender men and gender diverse individuals assigned female or intersex at birth in the United States Methods: Participants were recruited from The Population Research in Identity and Disparities for Equality (PRIDE) Study and the general public. Eligible participants for this analysis were able to read and understand English, assigned female or intersex at birth, US residents, 18+ years old, and identified as transgender, nonbinary, or gender diverse. We analyzed responses to close-ended survey questions, overall and stratified by gender identity, …

Unlocking Icu Barriers: Investigating The Challenges Of Early Progressive Mobility, Leslie S. Bigler

Doctoral Projects

Approximately 800,000 patients in the United States annually are admitted to the Intensive Care Unit (ICU) due to critical illnesses and prolonged immobility contributes to poor patient outcomes. While existing data demonstrates early and progressive mobility helps improve outcomes, adherence remains inconsistent for a variety of reasons such as safety concerns, staffing, and lack of knowledge and confidence of mobilization techniques. This quality improvement project, conducted in a 20-bed Medical Intensive Care Unit, asked staff to identify barriers to adherence to mobility protocols. Nurse managers and clinical educators play a crucial role in addressing these issues using strategies such as …

Regrounding The Unworldly: Carnap’S Politically Engaged Logical Pluralism, Noah Friedman-Biglin

Faculty Research, Scholarly, and Creative Activity

Recent discussions of logical pluralism trace its origins to Rudolf Carnap’s principle of tolerance; indeed, the principle is seen as one of Carnap’s lasting philosophical contributions. In this paper, I will argue that Carnap’s reasons for adopting this principle are not purely logical, but are rather founded in the Vienna Circle’s manifesto—a programmatic document that brings the Circle’s philosophical work together with a program of social change. Building on work by Uebel, Romizi, and others, I argue that we must understand the principle in light of Carnap’s role in writing the manifesto, and thus as integrated into the larger philosophical …

Moving Towards The Electrification Of Medium- And Heavy-Duty Vehicles In The Inland Empire, Kimberly Collins, Raffi Der Wartanian, Francisca Beer, Yunfei Hou

Mineta Transportation Institute

This report investigates the transition to zero-emission medium- and heavy-duty vehicles (MDHD) within California’s Inland Empire (IE), emphasizing the significance of electric vehicle charging infrastructure and opportunity charging strategies in facilitating sustainable transportation. Utilizing a mixed-methods approach that combines a systematic literature review, geospatial and big data analytics, and thematic analysis of expert interviews, the study explores the multifaceted challenges and opportunities of electrification. The literature review assesses policies at various governance levels, while geospatial analysis identifies regional traffic patterns and infrastructure needs. Big data analytics examine vehicle movements, complemented by insights from interviews with 16 regional experts, offering a …

Forecasting Commercial Vehicle Miles Traveled (Vmt) In Urban California Areas, Steve Chung, Jaymin Kwon, Yushin Ahn

Mineta Transportation Institute

This study investigates commercial truck vehicle miles traveled (VMT) across six diverse California counties from 2000 to 2020. The counties—Imperial, Los Angeles, Riverside, San Bernardino, San Diego, and San Francisco—represent a broad spectrum of California’s demographics, economies, and landscapes. Using a rich dataset spanning demographics, economics, and pollution variables, we aim to understand the factors influencing commercial VMT. We first visually represent the geographic distribution of the counties, highlighting their unique characteristics. Linear regression models, particularly the least absolute shrinkage and selection operator (LASSO) and elastic net regressions are employed to identify key predictors of total commercial VMT. LASSO regression …

Threat And Hazard Identification And Risk Assessment (Thira) Guidance For Railroads, Frances L. Edwards, Daniel C. Goodrich

Mineta Transportation Institute

Climate change creates new challenges for all critical transportation infrastructure, especially for railroads with an open system that is continuously exposed to the elements. A Threat and Hazard Identification and Risk Assessment (THIRA) is a necessary first step for an organization to understand the challenges and develop strategies for adaptation to them. In many cases, the railroad sector is uniquely positioned to mitigate greenhouse gas emissions through mitigation steps. This guide will assist railroad risk managers and emergency managers to evaluate the risks and determine how best to respond to them through preparation, mitigation, or adaptation. The THIRA is the …

Information Management Practices As Correlate Of Service Delivery In Special Libraries In Rivers State, Nigeria, Crescentia Worigida Eleto Department Of Library And Information Science, Obilor Esezi Isaac

Library Philosophy and Practice (e-journal)

This study investigated the relationship between information management practices and service delivery in special libraries in Rivers State. The study was guided by three specific objectives, three research questions and three hypotheses. The design adopted for this study was the correlational survey research design. The population of the study was 75 staff from 18 organizations in Rivers State. Given the manageable population of 75 library staff, the census enumerative sampling technique was employed for the study. The instrument used for data collection was two structured questionnaires titled "Information Management Practices Questionnaire (IMP-Q) and Service Delivery Questionnaire (SD-Q)". Instruments were subjected …

Villagran, Gilbert Joseph, San Jose State University

Emeritus and Retired Faculty Biographies

San Jose State University, Social Work, 1976 MSW

San Jose State University, Community College Teaching Credential, 1973

San Jose State University, Philosophy, 1971 BA

Selvaduray, Guna S., San Jose State University

Emeritus and Retired Faculty Biographies

Stanford University, 1978 Ph.D.

Stanford University, 1976 M.S.

Tokyo Institute of Technology, 1969 B.S.

The Use Of Technology For Knowledge Creation And Capitalization, And The Impact On Organizational Performance In Public Service Administration, Sarah Bawack

Library Philosophy and Practice (e-journal)

No abstract provided.

Students’ Knowledge And Attitude Towards Plagiarism: A Case Of Lusaka Apex Medical University Students, Dalitso Mvula, Treasure Chisakula

Library Philosophy and Practice (e-journal)

Laws guide societies in the world. These laws are meant to create an environment that ensures citizens’ rights are respected. The same happens in academia. There are guidelines that students follow in the execution of their assignments, examinations and research in higher institutions. These guidelines are meant to ensure that there is no any form of academic dishonesty being perpetuated by the students. This paper investigated Lusaka Apex Medical University students’ knowledge and attitude towards plagiarism. The study sought to assess the knowledge of LAMU students towards plagiarism, examine the attitude of LAMU students towards plagiarism, assess factors that foster …

Photoinduced Charge Injection From Shallow Point Defects In Diamond Into Water, Kang Xu, Daniela Pagliero, Gabriel I. López-Morales, Johannes Flick, Abraham Wolcott, Carlos A. Meriles

Faculty Research, Scholarly, and Creative Activity

Thanks to its low or negative surface electron affinity and chemical inertness, diamond is attracting broad attention as a source material of solvated electrons produced by optical excitation of the solid-liquid interface. Unfortunately, its wide bandgap typically imposes the use of wavelengths in the ultraviolet range, hence complicating practical applications. Here, we probe the photocurrent response of water surrounded by single-crystal diamond surfaces engineered to host shallow nitrogen-vacancy (NV) centers. We observe clear signatures of diamond-induced photocurrent generation throughout the visible range and for wavelengths reaching up to 594 nm. Experiments as a function of laser power suggest that NV …

Library Services And Resource Provision To Prison Inmates In Enugu Maximum Prison Library, Enugu State, Nigeria, Andrew Ifeanyi Ifeabor, Godwin Sunday Ezeh, Comfort Ometere Alabi, Margaret N. Ngwuchukwu

Library Philosophy and Practice (e-journal)

The study focused on library services and resource provision to prison inmates in Enugu Maximum Prison Library Enugu State Nigeria. Four (4) research questions were formulated to guide the study. The objectives of the study were to find out the extent of library services provision to the prison inmates, extent of provision of library resources to the inmates, agencies that provide resources and services to the Prison Library, and the problems associated with the provision of library services and resources to meet the inmates’ information needs. Eighty-three (83) respondents comprising eighty prison inmates and three library staff were used as …

Emerging Trends And Challenges Of Metadata In 21st Century Nigerian Academic Libraries, Rose Ezeibe Dr., Daniel Aniekan Aloysius Dr., Godwin M. Nna-Etuk Dr.

Library Philosophy and Practice (e-journal)

This paper examined emerging trends and challenges of metadata in 21^st century Nigerian academic libraries. It gave the historical development of metadata and types of library metadata. The functions of metadata in academic libraries were accentuated. Bibliographic Framework (BibFrame) 2.0, Resource Description and Access, Functional Requirements for Bibliographic Records (FRBR) and Functional Requirement for Authority Data (FRAD) were identified as emerging trends of metadata in Nigerian academic libraries. The different online union catalogue and integrated library systems were analyzed. The various challenges and ways of addressing the application of metadata in Nigerian academic libraries were identified. The paper concluded …

A Systematic Review Of Academic Writing Services In Low- And Middle-Income Countries, Augustine N. Gitonga, Peter M. Gatiti, Prisila Everisty Mlingi

Library Philosophy and Practice (e-journal)

Libraries are the key research and scholarly communication centres of any university. The information literacy skills offered to library users enable scientific communication. As new roles for librarians emerge to meet changing user needs and match fluid technological trends, academic libraries must combine their rich resources with cutting-edge skills to further impact the scientific world. There is a need for a sound, evidence-based appreciation of the factors that influence or hinder the establishment of academic writing centres and academic writing services in Low- and Middle-income Countries (LMIC). This article aims to synthesise qualitative and mixed methods research on academic writing …

Utilization Of Electronic Resources For Effective Library Services In The 21st Century, Stanley Efe Okolo

Library Philosophy and Practice (e-journal)

This paper focuses on the utilization of electronic resources for effective library services in the 21^st century. The research paper treated among others, the concept of electronic database, and the various types of databases that are available in the educational system. It also treated the application of electronic resources or databases in rendering effective library services, factors that must be in place in order for electronic databases to be used for library services which includes: library Automation, library Management, library Networking, Audio-visual Technology and technical Communication. The paper outlined some challenges as enshrined by scholars in the field of …

Research Productivity And Publication Trends Of ‘Law Library Journal’ (1989-2021): A Scientometric Study, Madhukar Bapu Togam

Library Philosophy and Practice (e-journal)

Structured Abstract:

Purpose:

The researcher has conducted a quantitative analysis of literature published in the Law Library Journal (LLJ) during the period of 1989 to 2021 (thirty-two years) using a series of scientometrics indicators. Such as annual scientific production, year-wise distribution of articles, and their average citations. i.e. most locally cited authors and most frequent word occurrences, the frequency distribution of scientific productivity by Lotka’s law, top-five most cited documents, most relevant affiliations, and top twenty prolific authors engaged in Law Library Journal. Addition to that the co-authorship pattern author-wise, organization-wise and country-wise, and country-wise scientific production, institution’s collaboration network …

Dnaforge: A Design Tool For Nucleic Acid Wireframe Nanostructures, Antti Elonen, Leon Wimbes, Abdulmelik Mohammed, Pekka Orponen

Faculty Research, Scholarly, and Creative Activity

DNAforge is an online tool that provides a unified, user-friendly interface to several recent design methods for DNA and RNA wireframe nanostructures, with the possibility of integrating additional methods into the same framework. Currently, DNAforge supports three design methods for DNA nanostructures and two for RNA nanostructures. The tool enables the design, visualisation and sequence generation for highly complex wireframe nanostructures with a simple fully automated process. DNAforge is freely accessible at https://dnaforge.org/.

The Awareness And Use Of Electronic Information Resources Among Non-Academic Staff Of University Of Ilorin, Ilorin, Nigeria, Abdulwaliy Oloruntobi Akinnubi, Oluwafemi Emmanuel Amupitan, Temitope Joseph Babatunde

Library Philosophy and Practice (e-journal)

Electronic Information Resources (EIRS) has become the choice platform for academics, non-academics, and researchers primarily for their capacity to accommodate and retrieve information resources online. Therefore, It is understandable why EIRS is embraced daily by both established and aspiring scholars and students in academic institutions globally. It has been shown in literature over time that the awareness and usage of EIRS have influenced people to become more innovative and technologically savvy neighbors. This work, therefore, intends to explore the depth of awareness and usage of Electronic resources by Non-Academic staff of the University of Ilorin. The study has adopted quantitative …

Librarians’ Use Of Ict, Work Ethics And Library Users’ Satisfaction In Public Universities In Edo State, Nigeria, Anthony Solomon

Library Philosophy and Practice (e-journal)

This study investigated the influence of ICT use and work ethics by librarians on library users’ satisfaction in public universities in Edo State; the descriptive survey research design was adopted; and the study population was 12,400 library users, with a sample size was 388, while the simple random sampling technique was adopted. The instrument for data collection was the structured questionnaire, and data collected was analysed using inferential statistics. Findings showed that ICT use had a strong influence on library users’ satisfaction (R2 = 0.448; F = 250.565; p = 0.001); work ethics had a weak influence on library users’ …

Development Of The Roadway Pothole Management Program, Dingxin Cheng

Mineta Transportation Institute

Addressing the issue of potholes is a primary concern for maintaining urban infrastructure. The research team has developed a prototype pothole management program. The program includes a mobile application and two machine learning models. The mobile app enables users to upload images of potholes, report relevant information, and provide driving directions to the pothole location. With the help of this application, the user can seamlessly capture images of the potholes, record pertinent information, and submit the data for necessary action. The mobile application is an essential tool in the Pothole Management Program (PMP), as it enhances the program's efficiency, effectiveness, …

Mapping Of Pavement Conditions Using Smartphone/Tablet Lidar Case Study: Sensor Performance Comparison, Calvin Beavers, Chad Day, Austin Krietemeyer, Scott M. Peterson, Yushin Ahn, Xiaojun Li

Mineta Transportation Institute

Poor road conditions affect millions of drivers, and assessing the condition of paved surfaces is a critical step towards repairing them. This project explores the feasibility of using the Apple iPad Pro LiDAR sensor as a cost-effective tool for assessing the damage and condition of paved surfaces. Our research aims to provide accurate and precise measurements using readily available consumer devices and compare the results to state-of-the-art equipment. This investigation involved visual inspection, identification, and classification of pavement distresses, followed by a comparison of the iPad and iPhone LiDAR data with a survey-grade terrestrial laser scanner. The project revealed several …

Spatio-Temporal Analysis Of The Roadside Transportation-Related Air Quality (Startraq 2022): Data-Driven Exposure Analysis By Transportation Modes, Jaymin Kwon, Yushin Ahn, Steve Chung

Mineta Transportation Institute

Particulate matter (PM) pollution poses significant health risks, influenced by various meteorological factors and seasonal variations. This study investigates the impact of temperature and other meteorological variables on PM10 and PM2.5 levels in Fresno County, known for high air pollution. Multiple linear regression (MLR) and generalized additive models (GAMs) assess the significance of these relationships. Analyzing data from Fresno County, we examine PM10 and PM2.5 levels across "hot" (June to August) and "cool" (September to May) seasons. Findings indicate PM10, both MLR and GAM models identify statistically significant variables, excluding temperature and wind direction in each season. However, during the …

Evaluating The Efficacy Of A Passive Exoskeleton For Enhancing Ergonomics In Manufacturing, Fatemeh Davoudi Kakhki, Armin Moghadam, Arnold Nieto, Hardik Vora

Faculty Research, Scholarly, and Creative Activity

Featured Application: This study explores the integration of an occupational passive back-support exoskeleton in manufacturing, demonstrating its potential to reduce physical discomfort and physical exertion and enhance ergonomic practices. It highlights the role of the exoskeleton as a proactive tool for improving occupational health and safety in industrial settings. Manual material handling (MMH) significantly impacts worker health and productivity, often leading to musculoskeletal disorders (MSDs) primarily in the lower back. As a novel assistive technology, exoskeletons may serve as ergonomic tools to mitigate these work-related MSDs. It is essential to examine exoskeletons from the users’ perspectives before their widespread implementation …

The Modeled Seasonal Cycles Of Surface N2o Fluxes And Atmospheric N2o, Qing Sun, Fortunat Joos, Sebastian Lienert, Sarah Berthet, Dustin Carroll, Cheng Gong, Akihiko Ito, Atul K. Jain, Sian Kou-Giesbrecht, Angela Landolfi, Manfredi Manizza, Naiqing Pan, Michael Prather, Pierre Regnier, Laure Resplandy, Roland Séférian, Hao Shi, Parvadha Suntharalingam, Rona L. Thompson

Faculty Research, Scholarly, and Creative Activity

Nitrous oxide (N2O) is a greenhouse gas and stratospheric ozone-depleting substance with large and growing anthropogenic emissions. Previous studies identified the influx of N2O-depleted air from the stratosphere to partly cause the seasonality in tropospheric N2O (aN2O), but other contributions remain unclear. Here, we combine surface fluxes from eight land and four ocean models from phase 2 of the Nitrogen/N2O Model Intercomparison Project with tropospheric transport modeling to simulate aN2O at eight remote air sampling sites for modern and pre-industrial periods. Models show general agreement on the seasonal phasing of zonal-average N2O fluxes for most sites, but seasonal peak-to-peak amplitudes …

Multi-Link Prediction For Mmwave Wireless Communication Systems Using Liquid Time-Constant Networks, Long Short- Term Memory, And Interpretation Using Symbolic Regression, Vishnu S. Pendyala, Milind Patil

Faculty Research, Scholarly, and Creative Activity

A significant challenge encountered in mmWave and sub-terahertz systems used in 5G and the upcoming 6G networks is the rapid fluctuation in signal quality across various beam directions. Extremely high-frequency waves are highly vulnerable to obstruction, making even slight adjustments in device orientation or the presence of blockers capable of causing substantial fluctuations in link quality along a designated path. This issue poses a major obstacle because numerous applications with low-latency requirements necessitate the precise forecasting of network quality from many directions and cells. The method proposed in this research demonstrates an avant-garde approach for assessing the quality of multi-directional …