Digital Commons Network^™

Uav High-Resolution Imaging And Disease Surveys Combine To Quantify Climate-Related Decline In Seagrass Meadows, Lillian R. Aoki, Bo Yang, Olivia J. Graham, Carla Gomes, Brendan Rappazzo, Timothy L. Hawthorne, J. Emmett Duffy, Drew Harvell

Faculty Research, Scholarly, and Creative Activity

No abstract provided.

Cooperative Filtering And Parameter Identification For Advection-Diffusion Processes Using A Mobile Sensor Network, Jie You, Ziqiao Zhang, Fumin Zhang, Wencen Wu

Faculty Research, Scholarly, and Creative Activity

This article presents an online parameter identification scheme for advection-diffusion processes using data collected by a mobile sensor network. The advection-diffusion equation is incorporated into the information dynamics associated with the trajectories of the mobile sensors. A constrained cooperative Kalman filter is developed to provide estimates of the field values and gradients along the trajectories of the mobile sensors so that the temporal variations in the field values can be estimated. This leads to a co-design scheme for state estimation and parameter identification for advection-diffusion processes that is different from comparable schemes using sensors installed at fixed spatial locations. Using …

Low-Altitude Uav Imaging Accurately Quantifies Eelgrass Wasting Disease From Alaska To California, Bo Yang, Timothy L. Hawthorne, Lillian Aoki, Deanna S. Beatty, Tyler Copeland, Lia K. Domke, Ginny L. Eckert, Carla P. Gomes, Olivia J. Graham, C. Drew Harvell, Kevin A. Hovel, Margot Hessing-Lewis, Leah Harper, Ryan S. Mueller, Brendan Rappazzo, Luba Reshitnyk, John J. Stachowicz, Fiona Tomas, J. Emmett Duffy

Faculty Research, Scholarly, and Creative Activity

Declines in eelgrass, an important and widespread coastal habitat, are associated with wasting disease in recent outbreaks on the Pacific coast of North America. This study presents a novel method for mapping and predicting wasting disease using Unoccupied Aerial Vehicle (UAV) with low-altitude autonomous imaging of visible bands. We conducted UAV mapping and sampling in intertidal eelgrass beds across multiple sites in Alaska, British Columbia, and California. We designed and implemented a UAV low-altitude mapping protocol to detect disease prevalence and validated against in situ results. Our analysis revealed that green leaf area index derived from UAV imagery was a …

Can Undergraduate Artists With No Training In Forensic Art Produce Accurate Age Progressions?, William B. Erickson, James Lampinen, Charlie Frowd, Gregory Mahoney

International Journal of Missing Persons

When children go missing and remain missing for long periods of time, authorities sometimes retain forensic artists to age progress the last known picture to provide an estimate of the current appearance. In the present research, undergraduate artists with no training in forensic art were asked to age progress images of children to an adult appearance. Similarity of age progressions produced by undergraduate artists were as similar to the corresponding targets as were age progressions produced by practicing forensic artists. However, age progressions produced by undergraduate artists were rated as being more similar to description matched foils than were the …

Important Ice Processes Are Missed By The Community Earth System Model In Southern Ocean Mixed-Phase Clouds: Bridging Socrates Observations To Model Developments, Xi Zhao, Xiaohong Liu, Susannah Burrows, Paul J. Demott, Minghui Diao, Greg M. Mcfarquhar, Sachin Patade, Vaughan Phillips, Greg C. Roberts, Kevin J. Sanchez, Yang Shi, Meng Zhang

Faculty Research, Scholarly, and Creative Activity

Global climate models (GCMs) are challenged by difficulties in simulating cloud phase and cloud radiative effect over the Southern Ocean (SO). Some of the new-generation GCMs predict too much liquid and too little ice in mixed-phase clouds. This misrepresentation of cloud phase in GCMs results in weaker negative cloud feedback over the SO and a higher climate sensitivity. Based on a model comparison with observational data obtained during the Southern Ocean Cloud Radiation and Aerosol Transport Experimental Study, this study addresses a key uncertainty in the Community Earth System Model version 2 (CESM2) related to cloud phase, namely ice formation …

Spartan Daily, February 22, 2023, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2023

Volume 160, Issue 12

Spartan Daily, February 21, 2023, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2023

Volume 160, Issue 11

Exploring The Impacts Of The Covid-19 Pandemic On The Number Of Reported Missing Persons In Canada During 2020, Alexandria Connolly, Mauranne Ste-Marie, Kevin O'Shea

International Journal of Missing Persons

The COVID-19 pandemic has resulted in notable social and economic impacts in many countries, including Canada. This study examines the impacts of the COVID-19 pandemic on the number of reported missing persons, adults and children, in Canada during 2020. Results indicate that there was a decrease in the number of reported missing persons cases during 2020 as compared to 2019 by 20.20%. All provinces and territories experienced a decrease, with the exception of New Brunswick. The pandemic had notable impacts specifically on the number of reported missing children, missing teenagers, and missing male individuals in general. This study provides a …

Shared Responsibility: Conceptualising How A Public Health Approach May Enhance Police Response To Missing Persons, Katie Gambier-Ross, Joe Apps Dr, Sarah Wayland Dr

International Journal of Missing Persons

When a person is reported missing there are substantial costs for the individual, their family and society. This paper conceptualises the experience of missing persons episodes, through a public health approach. This then allows police, stakeholders and the community to engage in discussions about who is vulnerable to going missing by intervening in a way that addresses risk. Historically, a missing persons episode involves an absence, typically followed by police involvement in consultation with next of kin with establishing the whereabouts of the missing person being the primary focus. Yet, the risk factors of going missing relate more to the …

Spartan Daily, February 9, 2023, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2023

Volume 160, Issue 7

Spartan Daily, February 7, 2023, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2023

Volume 160, Issue 5

Access And Use Of Consortium For E-Resources In Agriculture (Cera) By The Research Scholars And Post Graduate Students Of The Krc College Of Horticulture, Arabhavi, Uhs Bagalkot, Manjunath B. Hadimani Mr., Vinayaka M. Bankapur Dr.

Library Philosophy and Practice (e-journal)

In the electronic information age, consortiums are gaining more importance. The consortia movement has entered libraries and has received attention from the information-producing community. CeRA consortium is a tremendously great effort on the part of the Indian Council of Agricultural Research (ICAR) to propose single-window access to e-resources to State Agricultural Universities (SAU)/ICAR institutes all over India. CeRA subscribed to e-Resources and create/facilitate an e-environment and e-access culture for faculty, scientists, research scholars, and students in the National Agricultural Research and Education System. The current study attempts to understand the access and use of CeRA among the researchers and PG …

Ending The Hiv Epidemic: Identifying Barriers And Facilitators To Implement Molecular Hiv Surveillance To Develop Real-Time Cluster Detection And Response Interventions For Local Communities, Moctezuma Garcia, Samantha Devlin, Jared Kerman, Kayo Fujimoto, Lisa R. Hirschhorn, Gregory Phillips, John Schneider, Moira C. Mcnulty

Faculty Research, Scholarly, and Creative Activity

The rapid implementation of molecular HIV surveillance (MHS) has resulted in significant challenges for local health departments to develop real-time cluster detection and response (CDR) interventions for priority populations impacted by HIV. This study is among the first to explore professionals’ strategies to implement MHS and develop CDR interventions in real-world public health settings. Methods: Semi-structured qualitative interviews were completed by 21 public health stakeholders in the United States’ southern and midwestern regions throughout 2020–2022 to identify themes related to the implementation and development of MHS and CDR. Results for the thematic analysis revealed (1) strengths and limitations in utilizing …

Rabbit Meat—Production, Consumption And Consumers’ Attitudes And Behavior, Shahida Anusha Siddiqui, Francesca Gerini, Ali Ikram, Farhan Saeed, Xi Feng, Yanping Chen

Faculty Research, Scholarly, and Creative Activity

Rabbit meat could play an important role in health, the rural economy, and sustainable development. Rabbit meat has excellent nutritional features, such as high protein content, low-fat content, and a high percentage of unsaturated fatty acids, low cholesterol and sodium levels. In addition, rabbit meat production contributes to maintaining economic activities in rural marginal areas. However, the consumption of rabbit meat is still limited due to several factors such as the higher cost of commercial food that is slowing down rabbits’ breeding. Socio-demographic characteristics, attitudes, and nationality of consumers influence the demand and consumption of rabbit meat. The social and …

Waterfowl Recently Infected With Low Pathogenic Avian Influenza Exhibit Reduced Local Movement And Delayed Migration, Claire S. Teitelbaum, Michael L. Casazza, Fiona Mcduie, Susan E.W. De La Cruz, Cory T. Overton, Laurie A. Hall, Elliott L. Matchett, Joshua T. Ackerman, Jeffery D. Sullivan, Andrew M. Ramey, Diann J. Prosser

Faculty Research, Scholarly, and Creative Activity

Understanding relationships between infection and wildlife movement patterns is important for predicting pathogen spread, especially for multispecies pathogens and those that can spread to humans and domestic animals, such as avian influenza viruses (AIVs). Although infection with low pathogenic AIVs is generally considered asymptomatic in wild birds, prior work has shown that influenza-infected birds occasionally delay migration and/or reduce local movements relative to their uninfected counterparts. However, most observational research to date has focused on a few species in northern Europe; given that influenza viruses are widespread globally and outbreaks of highly pathogenic strains are increasingly common, it is important …

Trade And Transportation Talent Pipeline Blueprints: Building Universityindustry Talent Pipelines In Colleges Of Continuing And Professional Education, Tyler D. Reeb, Stacey Park

Mineta Transportation Institute

The rapid adoption of transformational technologies along with other economic and cultural shifts, have created a gap between workers and the skills and knowledge necessary for in-demand occupations. Trade and Transportation Talent Pipeline Blueprints: Building University-Industry Talent Pipelines in Colleges of Continuing and Professional Education identifies the steps required to build talent pipelines that target in-demand trade and transportation occupations requiring specific degrees, certificates, and non-credit professional development. This report provides a literature review and labor market data analysis. It also includes documentation of methodology in planning a pilot program for Colleges of Professional and Continuing Education housed within each …

Retrospective Analysis Of Measures To Reduce Large Whale Entanglements In A Lucrative Commercial Fishery, Leena Riekkola, Owen R. Liu, Blake E. Feist, Karin A. Forney, Briana Abrahms, Elliott L. Hazen, Jameal F. Samhouri

Faculty Research, Scholarly, and Creative Activity

Recovering marine animal populations and climate-driven shifts in their distributions are colliding with growing ocean use by humans. One such example is the bycatch of whales in commercial fishing, which poses a significant threat to the conservation and continued recovery of these protected animals and is a major barrier to sustainable fisheries. Long-lasting solutions to this problem need to be robust to variability in ecological dynamics while also addressing socio-cultural and economic concerns. We assessed the efficacy of gear reductions as an entanglement mitigation strategy during 2019 and 2020 in the highly valuable Dungeness crab fishery (Washington State, USA) in …

Joint Spatiotemporal Models To Predict Seabird Densities At Sea, Mayumi L. Arimitsu, John F. Piatt, James T. Thorson, Katherine J. Kuletz, Gary S. Drew, Sarah K. Schoen, Daniel A. Cushing, Caitlin Kroeger, William J. Sydeman

Faculty Research, Scholarly, and Creative Activity

Introduction: Seabirds are abundant, conspicuous members of marine ecosystems worldwide. Synthesis of distribution data compiled over time is required to address regional management issues and understand ecosystem change. Major challenges when estimating seabird densities at sea arise from variability in dispersion of the birds, sampling effort over time and space, and differences in bird detection rates associated with survey vessel type.

Methods: Using a novel approach for modeling seabirds at sea, we applied joint dynamic species distribution models (JDSDM) with a vector-autoregressive spatiotemporal framework to survey data collected over nearly five decades and archived in the North Pacific Pelagic Seabird …

Utilization Of Electronic Resources In University Of Abuja Library By Undergraduate Students Of University Of Abuja, Nigeria, Rose Lade Mommoh Dr., Hadiza Eneze Gomina Mrs

Library Philosophy and Practice (e-journal)

The study investigated the utilization of electronic resources in University of Abuja library by Undergraduate students of University of Abuja. The descriptive survey research was adopted for the study. The study was guided by three research questions. The population of the study comprised of 3520 and 3750 undergraduate students from faculties of Science and Arts respectively. The sample size of for the study comprised of 352 and 375 undergraduate students from faculties of Science and Arts respectively. The study adopted a structured questionnaire for data collection. The study revealed moderate use of electronic resources by undergraduate students in faculties of …

Illuminating Chinese Aesthetics With Kant’S Account Of Genius? Possibility And Difficulty, Kefu Zhu

Comparative Philosophy

Many scholars interpret Chinese Aesthetics with the Kantian theory of genius because they seem to form a parallel: similar innate and spontaneous mental talents that exceed normal cognition and imagination generates beautiful arts with similar extraordinary qualities. I argue that projecting Kant’s genius to illuminate the creative power analogically, i.e., the carefree-wandering mind, is infeasible. The theory of genius assumes a critical project that stipulates a valuable way to exercise the power of judgment. Genius is only a postulated idea for successfully making aesthetic judgments on artworks. In contrast, the carefree-wandering mind assumes a Daoist metaphysical-ethical theory centering on the …

The Best Confucian Hybrid Meritocracy-Democracy For Liberal Democracies, John J. Park

Comparative Philosophy

Several contemporary Confucian philosophers have posited differing hybrid views fusing meritocracy to democracy. There is a good deal of interest in a meritocracy in contemporary Confucian thought, and such a view perhaps should receive more serious consideration in liberal democratic thought since it may make for a stronger form of government when appended to democracy. In this paper, four contemporary hybrid theorists who combine elements of a meritocracy with a democracy are critically analyzed concerning an ability for their views to be instantiated in liberal democracies for the legislative branch only. Finally, I provide a modified hybrid view for the …

Curiosity, Connection, & Community In Vertebrate Evolution & Natural History, Jessica Castillo Vardaro

Faculty Learning Communities

No abstract provided.

Trophic Ecology And Mercury Concentrations Of Canary Rockfish (Sebastes Pinniger) In The California Current System, Michaela M. Melanson

Master's Theses

Canary rockfish are a profitable fishery resource that has failed and successfully recovered in the 21st century. This study aimed to evaluate their trophic ecology through stomach content and stable isotope analysis and relate these to their mercury concentrations, biological traits, and environmental conditions. Canary rockfish consume mostly krill and teleosts with their geographic location affecting the proportion of prey items, suggesting regional environmental effects: chlorophyll-a, relief, port, and depth impact dietary choices. Mean ??13C values (-17.18 ± 0.54) significantly increased in individuals residing in deeper depths, higher latitudes, higher productivity, and higher temperatures, and in sexually mature individuals. Mean …

Evaluating The Effect Of Resveratrol On Sirt1 With Different Peptide Substrates, Yujin Hur

Master's Theses

SIRT1 is an NAD+-dependent lysine deacetylase that is involved in many important cellular pathways. The protein has an extended N-terminal domain that seems to play a role in regulating its activity. Sirtuin Activating Compounds (STACs) are allosteric activators, such as resveratrol, that regulate the activity of SIRT1. STACs bind to the N-terminal STAC Binding Domain (SBD) in SIRT1. Past literature has found that SIRT1 activity can be increased, decreased, or remain unchanged by resveratrol depending on the identity of the peptide substrate. The goal of this study is to clarify the mechanism for substrate-specific allosteric regulation by resveratrol. The interactions …

Homelessness And Taphonomy: A Multidisciplinary Study, Chloë Angst

Master's Theses

In this thesis, I present multidisciplinary research applicable to deceased unhoused individuals in urban San José, California. I present the problem of homelessness through a “hybrid collectif,” a conceptual framework that encompasses the factors that drive homelessness in life and death. I use taphonomic methodology to examine the problem of homelessness in this urban region by experimentation with porcine carcasses in simulated death scenarios. I utilize total body score (TBS), accumulated degree days (ADD), and predictive entomological species identification to examine decomposition trends. I also introduce “human survival scavenging” as an agent of decomposition, provide an account of ecological succession …

Spatiotemporal Dynamics And Biogeochemical Responses In A Tidally Restricted Moro Cojo Slough, Ryan Chiu

Master's Theses

Four years of observational data for Moro Cojo Slough (MCS), a Mediterranean climate estuary in central California, linked anthropogenic nutrient loading and hydrological modifications to a shift in net ecosystem metabolism (NEM) that differs from the characteristic net heterotrophic behavior of most estuarine systems. A lack of precipitation and limited flushing during the dry seasons, as evidenced from hypersaline waters, contribute to high ecosystem respiration rates that drove NEM to nearly balanced or net autotrophic. During the wet seasons, increased runoff and nutrient loading due to precipitation elevated primary production rates within MCS, characterizing the system as net autotrophic. Box …

Cirrus Microphysical Properties And The Controlling Factors Using A Machine Learning Approach, Derek D. Ngo

Master's Theses

Cirrus clouds are located at high altitudes and are composed of ice crystals. The unique location of cirrus clouds and their large variability in-cloud microphysical properties allow them to have either warming or cooling effects on Earth’s surface and affect the Earth’s energy budget on a global scale. The examination of cirrus radiative effects is further complicated by multiple factors affecting their formation and evolution, including the effects of thermodynamic, dynamic, aerosol, and chemical tracer variables. In this work, we developed a composite aircraft-based in-situ observation dataset based on seven National Science Foundation (NSF) and five NASA flight campaigns that …

Real Time Panoramic Image Processing, Matthew Gerlits

Master's Projects

Image stitching algorithms are able to join sets of images together and provide a wider field of a vision when compared with an image from a single standard camera. Traditional techniques for accomplishing this are able to adequately produce a stitch for a static set of images, but suffer when differing lighting conditions exist between the two images. Additionally, traditional techniques suffer from processing times that are too slow for real time use cases. We propose a solution which resolves the issues encountered by traditional image stitching techniques. To resolve the issues with lighting difference, two blending schemes have been …

Graphical User Interface For Evidential Reasoning Models, Rohin Gopalakrishnan

Master's Projects

The Capri system is an evidential reasoning system based on the belief function calculus to support automated reasoning and decision making in uncertain environments. Example domains of application include, medical diagnosis, as well as identifying biological biomarkers. The purpose of this project is to build a Python web-based and app-based Graphical User Interface (GUI), called PyGrapher, that facilitates building graphical evidential reasoning models. The graphical models built using PyGrapher will then be converted to a form that is suitable for input to the Capri system. The PyGrapher system provides an intuitive means to build and manipulate evidential reasoning models as …

Sex Differences In Perceptions Of Sleep Inertia Following Nighttime Awakenings, Cassie J. Hilditch, Sean Pradhan, Gregory Costedoat, Nicholas G. Bathurst, Zachary Glaros, Kevin B. Gregory, Nita L. Shattuck, Erin E. Flynn-Evans

Faculty Research, Scholarly, and Creative Activity

Study Objectives: The influence of biological sex on sleep inertia symptoms is currently unknown. We investigated the role of sex differences in the subjective experience and objective cognitive manifestation of sleep inertia following nighttime awakenings. Methods: Thirty-two healthy adults (16 female, 25.91 ± 5.63 years) completed a 1-week at-home study with one experimental night during which sleep was measured by polysomnography and participants were awakened during their habitual sleep time. Participants completed a psychomotor vigilance task, Karolinska Sleepiness Scale (KSS), visual analog mood scales, and a descending subtraction task (DST) prior to sleep (baseline) and at 2, 12, 22, and …