Digital Commons Network^™

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 …

Experimental Investigation Of The Self-Healing Potential Of Bacteria For Sustainable Concrete Structures Phase 2, Andrea Calabrese, Pitiporn Asvapathanagul, Nisarg N. Patel, Nanubala Dhruvan, Austin Adams, Michael Hernandez, Douglas S. Lopez-Cruz

Mineta Transportation Institute

Concrete is a critical component of so much of the modern construction industry. This material, well known for its versatility, robustness, longevity, and strength, is well-suited for a wide range of structural applications. Nonetheless, the widespread occurrence of cracks in concrete structures, primarily attributed to its limited tensile strength, shrinkage, and overstain, imposes a considerable economic and environmental challenge when it comes to retrofitting these fissures. This study tackles this problem by harnessing bacteria tolerant to high alkaline conditions to enable Microbially Induced Calcium Carbonate Precipitation (MICP) for the self-repair of concrete. This is achieved through an external application method, …

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 …

Battery Management System Development For Electric Vehicles And Fast Charging Infrastructure Improvement, Yu Yang, Hen-Geul Yeh, Cesar Ortiz

Mineta Transportation Institute

The electric vehicle (EV) has become increasingly popular due to its being zero-emission. However, a significant challenge faced by EV drivers is the range anxiety associated with battery usage. Addressing this concern, this project develops a more efficient battery management system (BMS) for electric vehicles based on a real-time, state-of-charge (SOC) estimation. The proposed study delivers three modules: (1) a new equivalent circuit model (ECM) for lithium-ion batteries, (2) a new SOC estimator based on the moving horizon method, and (3) an on-board FPGA implementation of the classical Coulomb counting method for SOC estimation. The research team extends the traditional …

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, …

Drosophila Nhe2 Overexpression Induces Autophagic Cell Death, Jobelle Peralta, Blake Dupriest, Daniel Orozco, Juan Reyna Pacheco, Laura Martins, Rachel Ann Soriano, Alan Wong, Ramy Wong, Bree Grillo-Hill

Faculty Research, Scholarly, and Creative Activity

Autophagy is a conserved catabolic process where double membrane-bound structures form around macromolecules or organelles targeted for degradation. Autophagosomes fuse with lysosomes to facilitate degradation and macromolecule recycling for homeostasis or growth in a cell autonomous manner. In cancer cells, autophagy is often up-regulated and helps cancer cells survive nutrient deprivation and stressful growth conditions. Here, we propose that the increased intracellular pH (pHi) common to cancer cells is sufficient to induce autophagic cell death. We previously developed tools to increase pHi in the Drosophila eye via overexpression of DNhe2, resulting in aberrant patterning and reduced tissue size. We examined …

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 …

Malware Classification Using Dynamically Extracted Api Call Embeddings, Sahil Aggarwal, Fabio Di Troia

Faculty Research, Scholarly, and Creative Activity

Malware classification stands as a crucial element in establishing robust computer security protocols, encompassing the segmentation of malware into discrete groupings. Recently, the emergence of machine learning has presented itself as an apt approach for addressing this challenge. Models can undergo training employing diverse malware attributes, such as opcodes and API calls, to distill valuable insights for effective classification. Within the realm of natural language processing, word embeddings assume a pivotal role by representing text in a manner that aligns closely with the proximity of similar words. These embeddings facilitate the quantification of word resemblances. This research embarks on a …

Populism’S Influence On News Content: Polarization, Political Parallelism, And Journalistic Professionalism In Rafael Correa’S Ecuador, Manel Palos Pons

Faculty Research, Scholarly, and Creative Activity

This article investigates how populism in power influenced news media in Ecuador during leftist president Rafael Correa’s presidency (2007–2017). Correa’s administration triggered a bold media reform in Ecuador challenging traditional media and promising media democratization, but his government received sharp denunciations from press freedom and media organizations which considered Ecuador as a “not free” country, especially after the passing of a Communication Law in 2013 that regulated media extensively. Through content analysis of news and opinion pieces published in 2005, 2006, 2015, 2016, and 2018 by Ecuador’s main legacy newspapers, El Comercio and El Universo, different legal and political contexts …

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 …

Transcriptome Reveals The Key Genes Related To The Metabolism Of Volatile Sulfur-Containing Compounds In Lentinula Edodes Mycelium, Zheng Li, Fei Pan, Wen Huang, Shuangshuang Gao, Xi Feng, Meijie Chang, Lianfu Chen, Yinbing Bian, Wenli Tian, Ying Liu

Faculty Research, Scholarly, and Creative Activity

Lentinula edodes (L. edodes) is a globally popular edible mushroom because of its characteristic sulfur-containing flavor compounds. However, the formation of the volatile sulfur-containing compounds in the mycelium of L. edodes has not been studied. We found that there were also sulfur-containing aroma compounds in the mycelium of L. edodes, and the content and composition varied at different stages of mycelial growth and development. The γ-glutamyl-transpeptidase (GGT) and cysteine sulfoxide lyase (C-S lyase) related to the generation of sulfur compounds showed the highest activities in the 15-day sample. Candidate genes for the metabolism of volatile sulfur compounds in mycelium were …

Pdrs4all Viii. Mid-Infrared Emission Line Inventory Of The Orion Bar, Dries Van De Putte, Raphael Meshaka, Boris Trahin, Emilie Habart, Els Peeters, Olivier Berné, Felipe Alarcón, Amélie Canin, Ryan Chown, Ilane Schroetter, Ameek Sidhu, Christiaan Boersma, Emeric Bron, Emmanuel Dartois, Javier R. Goicoechea, Karl D. Gordon, Takashi Onaka, Michael Kaufman, For Full Author List, See Comments Below

Faculty Research, Scholarly, and Creative Activity

Context. Mid-infrared emission features are important probes of the properties of ionized gas and hot or warm molecular gas, which are difficult to probe at other wavelengths. The Orion Bar photodissociation region (PDR) is a bright, nearby, and frequently studied target containing large amounts of gas under these conditions. Under the “PDRs4All” Early Release Science Program for JWST, a part of the Orion Bar was observed with MIRI integral field unit (IFU) spectroscopy, and these high-sensitivity IR spectroscopic images of very high angular resolution (0.2′′) provide a rich observational inventory of the mid-infrared (MIR) emission lines, while resolving the H …

Reading Colonial Transitions: Archival Evidence And The Archaeology Of Indigenous Action In Nineteenth-Century California, Lee M. Panich, Gustavo Flores, Michael Wilcox, Monica V. Arellano

Faculty Research, Scholarly, and Creative Activity

Archaeologists in North America and elsewhere are increasingly examining long-term Indigenous presence across multiple colonial systems, despite lingering conceptual and methodological challenges. We examine this issue in California, where archaeologists and others have traditionally overlooked Native persistence in the years between the official closing of the region’s Franciscan missions in the 1830s and the onset of US settler colonialism in the late 1840s. In particular, we advocate for the judicious use of the documentary record to ask new questions of Indigenous life during this short but critical period, when many Native Californians were freed from the missions and sought new …

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 …

Information Literacy And Learning In The Emerging Digital Landscape: A Theoretical Review, Adeoye Augustine Bamgbose

Library Philosophy and Practice (e-journal)

The 21st century has witnessed an unprecedented surge in information availability, catalyzed by rapid digital advancements. This paradigm shift has not only transformed how information is generated and accessed but has also fundamentally altered the learning landscape. Within this dynamic context, the intersection of information literacy and learning emerges as a critical area of inquiry. Information literacy, once confined to library sciences, has evolved into a multidimensional competency encompassing adept navigation, critical evaluation, and judicious utilization of digital information sources. This review delves into the intricate relationship between information literacy and learning in the digital age, drawing from various theoretical …

Adoption And Use Of Digital Reference Services In Selected Federal University Libraries In Northern Nigeria: A Preliminary Study, Bala Ahmed, Umar Garba Gama, Binta Ladan Farouk

Library Philosophy and Practice (e-journal)

This research explores the adoption and use of digital reference services in federal university libraries in northern Nigeria. The study employed a mixed-method approach using exploratory research design. Both questionnaires and interviews were used for the collection of relevant data. Twenty (20) questionnaires were administered, and all retrieved successfully (100%). Meanwhile, questionnaires were analyzed in a tabular form to demonstrate how each objective of the study was achieved whereas thematic analysis was used for the analysis of the interview. The findings reveal that thirteen (13) out of twenty (20) federal university libraries have adopted one or different forms of digital …

A Componential Study Of Library Websites Of Government Degree Colleges Of Telangana State, Dr. Mohammadi Asra Sultana

Library Philosophy and Practice (e-journal)

This study is undertaken to study the library websites/blogs created and maintained by the librarians of Government Degree Colleges in Telangana, their effectiveness in providing anticipated and on demand information to the students which help them in their learning and research needs. The study shows that optimum marketing of the libraries is done by these websites, providing academic e-resources as well as general information is disseminated to the users such as competitive exam related, career oriented guidance, television, music channel links, devotional and even resources/links for learning a language find a place in these websites.

Librarian And Health Worker Collaboration: Optimizing The Efficacy Of Bibliotherapy For Healing In Mental Hospitals, Bagus Gigih Permana, Retno Sayekti

Library Philosophy and Practice (e-journal)

The application of bibliotherapy in psychiatric hospitals is still limited due to several factors, such as the lack of guidelines and standards, the mismatch of expectations between professionals, and the difficulty in achieving systematic cooperation between librarians and health workers. This study aims to find out the role of each party involved and to find out how bibliotherapy can have an impact on patients. The method used in this research is qualitative and case study developed with purposive sampling technique to obtain information from librarians and health workers involved in the bibliotherapy program. Data collection techniques were through interviews, observation, …

Layton, Thomas N., San Jose State University

Emeritus and Retired Faculty Biographies

University of California, Davis, B.A. 1965

University of California, Davis, M.A. 1966

Harvard University, Anthropology, Ph.D. 1971

Records Management As A Risk Mitigation Strategy At Water Utilities Corporation, Botswana., Tolani Blackie, Nathan Mnjama

Library Philosophy and Practice (e-journal)

Records management is a very important component that can be used to mitigate risks in all organisations. The key objectives of the study were to establish whether Water Utilities Corporation (WUC) has a risk management strategy for records and evaluate the importance, status of records as well as risk management in place. Study participants were purposively sampled in this simple stratified random sampling research design study.

The study revealed that WUC has a risk management strategy called "The Enterprise Risk Management Strategy" that covers aspects of records management. However, the study further revealed that records management policies, disaster preparedness plans, …

Assessing Human Visual Attention In Retail Human-Robot Interaction: A Yolov8-Nano And Eye-Tracking Approach, Kamlesh Kumar, Yuhao Chen, Boyi Hu, Yue Luo

Faculty Research, Scholarly, and Creative Activity

Objectives: This research delves into the dynamics of human-robot interaction (HRI) in retail environments, with a focus on robot detection from videos captured via an eye-tracking system. Methods: The study employs YOLOv8-nano model for real-time robot detection during grocery shopping tasks. All videos were processed using the YOLOv8 model to test inference speed while performing eye-tracking data analysis as a case study. Results: The YOLOv8 model demonstrated high precision in robot detection, with a mean average precision (mAP) of approximately 97.3% for Intersection over Union (IoU), 100% precision, and 99.87% recall for box detection. The model's ability to process an …

Kallenbach, W. Warren, San Jose State University

Emeritus and Retired Faculty Biographies

Stanford University, Educational Psych/Guidance, 1959 Ed.D

Stanford University, Educational Psychology, 1953 MA.

Drury College, Psychology and Education, 1949 AB magna cum laude

Washington University, St. Louis, Missouri, 1946-1947

Jefferson City Junior College, 1943-1944

Gerston, Larry N., San Jose State University

Emeritus and Retired Faculty Biographies

Ph.D., Political Science, University of California, Davis, 1975

M.A., Political Science, University of California, Davis, 1970

A.B., Political Science and Sociology, University of California, Berkeley, 1969

Jochim, Christian, San Jose State University

Emeritus and Retired Faculty Biographies

University of California, Santa Barbara, Religious Studies, B.A., 1970

University of British Columbia, Religious Studies, M.A., 1974

University of Southern California, Religion (East Asian Studies), Ph.D., 1980

Overcoming Barriers To Improved Decision-Making For Battery Deployment In The Clean Energy Transition, Brian Tarroja, Julie M. Schoenung, Oladele Ogunseitan, Alissa Kendall, Yang Qiu, Timothy Malloy, Jens Peters, J. Mijin Cha, Dustin Mulvaney, Oliver Heidrich, Manuel Baumann

Faculty Research, Scholarly, and Creative Activity

Decarbonization plans depend on the rapid, large-scale deployment of batteries to sufficiently decarbonize the electricity system and on-road transport. This can take many forms, shaped by technology, materials, and supply chain selection, which will have local and global environmental and social impacts. Current knowledge gaps limit the ability of decision-makers to make choices in facilitating battery deployment that minimizes or avoids unintended environmental and social consequences. These gaps include a lack of harmonized, accessible, and up-to-date data on manufacturing and supply chains and shortcomings within sustainability and social impact assessment methods, resulting in uncertainty that limits incorporation of research into …

Evaluating The Accessibility And Usability Of Electronic Resources In Mizoram University Central Library: A User’S Perspective, Anudha Lepcha, Abhishek Rai, Manendra Kumar Singh

Library Philosophy and Practice (e-journal)

No abstract provided.

Okerlund, Arlene Naylor, San Jose State University

Emeritus and Retired Faculty Biographies

University of Maryland, College Park, 1960, BA, English (Minor, Chemistry)

University of California, San Diego, 1969, PhD, English Literature

Reynolds, E. Bruce, San Jose State University

Emeritus and Retired Faculty Biographies

University of Central Missouri (formerly Central Missouri State) , Mass Comm./History, B.S./M.A., 1969/1977

University of Hawaii at Manoa, History, Ph.D., 1988

The Role Of Libraries In Mobilizing The Information Society Through Technology, Fedrick Olatunji Ajegbomogun Prof, Clement Ola Adekoya Mr

Library Philosophy and Practice (e-journal)

The emergence of an information society acknowledges the importance of technology as a tool for human advancement, and society is primarily driven by technology. The study employed a descriptive survey research approach. 173 librarians from university settings and public and state libraries participated in the study; samples were taken from each state in the South-west of Nigeria. The entire population was used as the sample size since the population was reasonable enough. A questionnaire was used to collect the data. This study discovered that, despite certain challenges. This study reveals that libraries actively participate in the information society by utilizing …

Gamification And Game-Based Learning Tools: A Review And Utility For School Libraries, Sarwesh Pareek

Library Philosophy and Practice (e-journal)

This study presents a comprehensive analysis of gamification tools in school libraries, focusing on a web-based survey that identified 29 games related to digital literacy and library services. These games, categorized as free and paid, span various subjects and topics, including math, science, language arts, and information literacy. The research examines the specific uses of these games, assessing their effectiveness in enhancing student engagement and learning outcomes. By analyzing the features, design elements, and user interactions of these games, the study aims to provide insights into their impact on student motivation and educational achievement. The findings highlight the potential of …