Digital Commons Network^™

Investigating The Factor Structure And Measurement Invariance Of The Eating Disorder Examination-Questionnaire (Ede-Q) In A Community Sample Of Gender Minority Adults From The United States, Jason M. Nagata, Emilio J. Compte, F. Hunter Mcguire, Tiffany A. Brown, Jason M. Lavender, Stuart B. Murray, Matthew R. Capriotti, Annesa Flentje, Micah E. Lubensky, Mitchell R. Lunn, Juno Obedin-Maliver

Faculty Research, Scholarly, and Creative Activity

Objective: The Eating Disorder Examination-Questionnaire (EDE-Q) is one of the most widely used self-report assessments of eating disorder symptoms. However, evidence indicates potential problems with its original factor structure and associated psychometric properties in a variety of populations, including gender minority populations. The aim of the current investigation was to explore several previously published EDE-Q factor structures and to examine internal consistency and measurement invariance of the best-fitting EDE-Q model in a large community sample of gender minority adults. Methods: Data were drawn from 1567 adults (337 transgender men, 180 transgender women, and 1050 gender-expansive individuals) who participated in The …

Homelessness And Water Insecurity In The Global North: Trapped In The Dwelling Paradox, Katie Meehan, Melissa Beresford, Fausto Amador Cid, Lourdes Johanna Avelar Portillo, Anna Marin, Marianne Odetola, Raul Pacheco-Vega

Faculty Research, Scholarly, and Creative Activity

In this article, we introduce the “dwelling paradox” to explore how the state actively produces water insecurity for people experiencing homelessness in the Global North. We explain that the dwelling paradox is (1) produced by a modernist ideology of public service delivery that privileges water provision through private infrastructural connections in the home; (2) is reproduced by the welfare-warfare state, which has increasingly weaponized public water facilities and criminalized body functions in public space; and (3) is actively contested by some houseless communities, who challenge hegemonic ideals of the “home”—and its water infrastructure—as a private, atomized space. In advancing a …

Does Parent Report Of Child Physical Abuse And Supervisory Neglect Differ By Method Of Study Recruitment Or Mode Of Survey Administration?, Bridget Freisthler, Christiana Kranich, Jennifer Price Wolf

Faculty Research, Scholarly, and Creative Activity

General population studies find that rates of child maltreatment are higher than those identified in the child welfare system. Some modes of administration may result in higher disclosure rates of child maltreatment by respondents. This study assesses differences in characteristics of parents who are recruited using telephone sampling techniques or via the internet and whether the survey was administered by telephone or the web. We have 1599 parent respondents recruited from listed samples and Craigslist advertisements. Surveys were administered via the telephone or online. Survey included measures of parenting behaviours, psychosocial characteristics and demographics for the parent, child and family. …

Controlling Neocortical Epileptic Seizures Using Forced Temporal Spike-Time Stimulation: An In Silico Computational Study, Joseph Schmalz, Rachel V. Quinarez, Mayuresh V. Kothare, Gautam Kumar

Faculty Research, Scholarly, and Creative Activity

Epileptic seizure is typically characterized by highly synchronized episodes of neural activity. Existing stimulation therapies focus purely on suppressing the pathologically synchronized neuronal firing patterns during the ictal (seizure) period. While these strategies are effective in suppressing seizures when they occur, they fail to prevent the re-emergence of seizures once the stimulation is turned off. Previously, we developed a novel neurostimulation motif, which we refer to as “Forced Temporal Spike-Time Stimulation” (FTSTS) that has shown remarkable promise in long-lasting desynchronization of excessively synchronized neuronal firing patterns by harnessing synaptic plasticity. In this paper, we build upon this prior work by …

Decadal Time-Series Depletion Of Dissolved Oxygen At Abyssal Depths In The Northeast Pacific, K. L. Smith, M. Messié, T. P. Connolly, C. L. Huffard

Faculty Research, Scholarly, and Creative Activity

Dissolved oxygen depletion in the global ocean is well documented over several decades from the surface ocean to abyssal depths. This decline is especially prevalent in the Northeast Pacific. A significant decline in dissolved oxygen has been measured over 30 years at 4,000–4,100 m depth (Station M) beneath the California Current off central California. Three principal hypotheses examined the relationship of declining oxygen with biological and physical factors over the 30-year time series. Annual resolution revealed Ekman pumping, coastal upwelling, particulate matter flux, and sediment community oxygen consumption having significant correlations with bottom water dissolved oxygen concentration. Coastal upwelling accounted …

Information Retrieval Skills As Correlate Of Scholarly Research Among Postgraduate Students In Selected Universities In Oyo And Lagos States, Nigeria, Kolawole Oluwatola, Lawrence Akingbade

Library Philosophy and Practice (e-journal)

Abstract

The main objective of the study is to investigate information retrieval skills as correlate of scholarly research among postgraduate students in selected Universities in Oyo and Lagos States, Nigeria. Survey research methodology was used with a total sample size of 379 using single random sampling techniques to select postgraduate students. Data was collected mainly through questionnaire and analyzed using frequency distribution and regression analysis run on SPSS (2.0). The result revealed the types of information retrieval skills, the study revealed that information retrieval skills highly influence the postgraduate students’ scholarly research as it allowed them to easily recognition their …

Estimating Abundance Of An Elusive Cetacean In A Complex Environment: Harbor Porpoises (Phocoena Phocoena) In Inland Waters Of Southeast Alaska, Alexandre N. Zerbini, Kimberly T. Goetz, Karin A. Forney, Charlotte Boyd

Faculty Research, Scholarly, and Creative Activity

The harbor porpoise (Phocoena phocoena) is common in temperate waters of the eastern North Pacific Ocean, including Southeast Alaska inland waters, a complex environment comprised of open waterways, narrow channels, and inlets. Two demographically independent populations are currently recognized in this region. Bycatch of porpoises in the salmon drift gillnet fisheries is suspected to occur regularly. In this study, we apply distance sampling to estimate abundance of harbor porpoise during ship surveys carried out in the summer of 2019. A stratified survey design was implemented to sample different harbor porpoise habitats. Survey tracklines were allocated following a randomized survey design …

Decreasing Trash In Local Creeks: A Program Evaluation Of The City Of San Jose’S Direct Discharge Trash Control Program, Lakeisha Bryant

Master's Projects

The entire San Francisco Bay was once a navigable waterway in the 1850s during the Gold Rush era. Large amounts of sediment from upstream erosion and mining flowed to the bay resulting in the downsizing of the bay’s square miles (Environmental Protection Agency, 2022). As a result of intense development on the bay shores and adjacent lands, the bay faces several challenges that affect its water quality and threatens aquatic ecosystems. Pesticides, mercury, metals, and pathogens are just a few substances in the bay that cause unhealthy conditions for aquatic life and threaten human health. California’s Water Resources Control Board …

Divergent Post-Breeding Spatial Habitat Use Of Laysan And Black-Footed Albatross, Fredrick Dallas Jordan, Scott A. Shaffer, Melinda G. Conners, Julia E.F. Stepanuk, Morgan E. Gilmour, Corey A. Clatterbuck, Elliott L. Hazen, Daniel M. Palacios, Yann Tremblay, Michelle Antolos, David G. Foley, Steven J. Bograd, Daniel P. Costa, Lesley H. Thorne

Faculty Research, Scholarly, and Creative Activity

Understanding the at-sea movements of wide-ranging seabird species throughout their annual cycle is essential for their conservation and management. Habitat use and resource partitioning of Laysan (Phoebastria immutabilis) and black-footed (Phoebastria nigripes) albatross are well-described during the breeding period but are less understood during the post-breeding period, which represents ~40% of their annual cycle. Resource partitioning may be reduced during post-breeding, when birds are not constrained to return to the nest site regularly and can disperse to reduce competitive pressure. We assessed the degree of spatial segregation in the post-breeding distributions of Laysan (n = 82) and black-footed albatrosses (n …

Preservation Of Information Resources And User Satisfaction With The Use Of Library In Oko Polytechnic, Anambra State., Chibueze Norbert Onwuekwe, Chukwuma Simon Olise, Awajionyi Blessing Suleiman

Library Philosophy and Practice (e-journal)

ABSTRACT

This research work investigated the preservation of information resources and user satisfaction with the use of library in Oko Polytechnic, Anambra State. The population of the study comprises 39 library staff and sample size of the study was 20 library staff which was selected randomly using simple random sample techniques. Three research questions were formulated to guide this study. Data was collected using the questionnaire, and was analysed with descriptive statistics. The findings of the study revealed that the preservation method of information resources use in Oko Polytechnic includes: Binding, lamination and restoration, dusting/stain removal, fumigation, monitoring and controlling …

Machine Learned Daily Life History Classification Using Low Frequency Tracking Data And Automated Modelling Pipelines: Application To North American Waterfowl, Cory Overton, Michael Casazza, Joseph Bretz, Fiona Mcduie, Elliott Matchett, Desmond Mackell, Austen Lorenz, Andrea Mott, Mark Herzog, Josh Ackerman

Faculty Research, Scholarly, and Creative Activity

Background: Identifying animal behaviors, life history states, and movement patterns is a prerequisite for many animal behavior analyses and effective management of wildlife and habitats. Most approaches classify short-term movement patterns with high frequency location or accelerometry data. However, patterns reflecting life history across longer time scales can have greater relevance to species biology or management needs, especially when available in near real-time. Given limitations in collecting and using such data to accurately classify complex behaviors in the long-term, we used hourly GPS data from 5 waterfowl species to produce daily activity classifications with machine-learned models using “automated modelling pipelines”. …

The Flavor Profiles Of Highland Barley Fermented With Different Mushroom Mycelium, Kai Wang, Cuicui Yang, Ziyan Dai, Zhenxiang Wen, Yin Liu, Xi Feng, Ying Liu, Wen Huang

Faculty Research, Scholarly, and Creative Activity

Highland barley was fermented with Cordyceps militaris, Stropharia rugoso-annulata, Morchella esculenta, Schizophyllum commune and Tremella sanguinea. The flavor profiles were investigated by electronic nose (E-nose), headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) and sensory evaluation by train panel. Fermentation with mushroom mycelium was able to change the aroma profile of highland barley. The original strong grassy taste was reduced due to a decrease in hexanal, decanal and 2-pentylfuran, and new aromatic flavors (floral, sweet and mushroom fragrance) were acquired after fermentation. The overall flavor of the fermented highland barley varied with mushroom strains. Schizophyllum commune gave a heavier sour taste …

Analysis Of Volatile Compounds In Jinhua Ham Using Three Extraction Methods Combined With Gas Chromatography–Time-Of-Flight Mass Spectrometry, Dengyong Liu, Cong Yang, Lu Bai, Xi Feng, Yanping Chen, Yin Zhang, Yuan Liu

Faculty Research, Scholarly, and Creative Activity

The volatile compounds in Jinhua ham samples after different aging times were characterized using solvent-assisted flavor evaporation (SAFE), solid-phase microextraction (SPME), and needle trap (NT) extraction methods combined with gas chromatography–time-of-flight mass spectrometry (GC–TOF/MS). Hundreds of aroma compounds were identified, including aldehydes, alcohols, ketones, furans, esters, acids, pyrazines, and sulfides. The results showed that NT extracted the greatest number of volatile compounds, whereas the extraction efficiency of SPME headspace adsorption was highest among the three sample preparation methods. Principal component analysis of SPME effectively distinguished the variation in the aroma of the Jinhua hams specific to aging time. Butyrolactone, 2,6-dimethylpyrazine, …

Towards The Ionizing Radiation Induced Bond Dissociation Mechanism In Oxygen, Water, Guanine And Dna Fragmentation: A Density Functional Theory Simulation, Santosh Kc, Ramin Abolfath

Faculty Research, Scholarly, and Creative Activity

The radiation-induced damages in bio-molecules are ubiquitous processes in radiotherapy and radio-biology, and critical to space projects. In this study, we present a precise quantification of the fragmentation mechanisms of deoxyribonucleic acid (DNA) and the molecules surrounding DNA such as oxygen and water under non-equilibrium conditions using the first-principle calculations based on density functional theory (DFT). Our results reveal the structural stability of DNA bases and backbone that withstand up to a combined threshold of charge and hydrogen abstraction owing to simultaneously direct and indirect ionization processes. We show the hydrogen contents of the molecules significantly control the stability in …

Leaving More Than Footprints: Anthropogenic Nutrient Subsidies To A Protected Area, A. S. Guerra, A. Bui, M. Klope, D. A. Orr, S. A. Shaffer, H. S. Young

Faculty Research, Scholarly, and Creative Activity

Mobile animals that traverse ecosystem boundaries can fundamentally reshape environments by providing critical nutrient and energy inputs to the ecosystems they inhabit. In particular, aggregations of seabirds often transform coastal and island ecosystems through large amounts of nutrient-rich guano deposition. Anthropogenically driven losses of these subsidies can occur through changes in abundance of mobile species, including seabirds, and have been shown to drive whole-scale ecosystem state change on islands. However, even though many species that forage on anthropogenic food sources are highly mobile and may thus play important roles in moving nutrients from urban systems to otherwise conserved ecosystems, the …

Spartan Daily, November 29, 2022, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2022

Volume 159, Issue 40

Spartan Daily, November 15, 2022, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2022

Volume 159, Issue 36

Integrated Multi-Trophic Aquaculture Mitigates The Effects Of Ocean Acidification: Seaweeds Raise System Ph And Improve Growth Of Juvenile Abalone, Scott L. Hamilton, Matthew S. Elliott, Maya S. Devries, Jason Adelaars, Maxwell D. Rintoul, Michael H. Graham

Faculty Research, Scholarly, and Creative Activity

Integrated multi-trophic aquaculture (IMTA) has the potential to enhance growth, reduce nutrient loads, and mitigate environmental conditions compared to traditional single-species culture techniques. The goal of this project was to develop a land-based system for the integrated culture of seaweeds and shellfish, to test the efficacy of integrated versus non-integrated designs, and to assess the potential for IMTA to mitigate the effects of climate change from ocean acidification on shellfish growth and physiology. We utilized the red abalone (Haliotis rufescens) and the red seaweed dulse (Devaleraea mollis) as our study species and designed integrated tanks at three different recirculation rates …

Spartan Daily, November 3, 2022, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2022

Volume 159, Issue 32

Correctness And Response Time Distributions In The Memtrax Continuous Recognition Task: Analysis Of Strategies And A Reverse-Exponential Model, J. Wesson Ashford, James O. Clifford, Sulekha Anand, Michael F. Bergeron, Curtis B. Ashford, Peter J. Bayley

Faculty Research, Scholarly, and Creative Activity

A critical issue in addressing medical conditions is measurement. Memory measurement is difficult, especially episodic memory, which is disrupted by many conditions. On-line computer testing can precisely measure and assess several memory functions. This study analyzed memory performances from a large group of anonymous, on-line participants using a continuous recognition task (CRT) implemented at https://memtrax.com. These analyses estimated ranges of acceptable performance and average response time (RT). For 344,165 presumed unique individuals completing the CRT a total of 602,272 times, data were stored on a server, including each correct response (HIT), Correct Rejection, and RT to the thousandth of a …

“Everything…Fell Apart Once Covid-19 Hit”—Leveraging The Covid-19 Response To Strengthen Public Health Activities Toward Ending The Hiv Epidemic: A Qualitative Study, Samantha A. Devlin, Moctezuma Garcia, Kayo Fujimoto, Camden Hallmark, Marlene Mcneese, John Schneider, Moira C. Mcnulty

Faculty Research, Scholarly, and Creative Activity

COVID-19 caused widespread disruption of activities for Ending the HIV Epidemic (EHE). In this study we assessed public health perspectives on leveraging the COVID-19 response to advance the goals of EHE. We conducted a qualitative study with 33 public health partners in the Midwestern and Southern United States from October 2020 to February 2022. Participants were asked how the strategies developed for COVID-19 could be applied to the HIV epidemic. Interviews were recorded, transcribed, and examined using rapid qualitative analysis. Four themes emerged: (1) Rebuilding teams and adapting culture for success in EHE activities; (2) Recognizing and modernizing the role …

Separable Mechanisms Drive Local And Global Polarity Establishment In The Caenorhabditis Elegans Intestinal Epithelium, Melissa A. Pickett, Maria D. Sallee, Lauren Cote, Victor F. Naturale, Deniz Akpinaroglu, Joo Lee, Kang Shen, Jessica L. Feldman

Faculty Research, Scholarly, and Creative Activity

Apico-basolateral polarization is essential for epithelial cells to function as selective barriers and transporters, and to provide mechanical resilience to organs. Epithelial polarity is established locally, within individual cells to establish distinct apical, junctional and basolateral domains, and globally, within a tissue where cells coordinately orient their apico-basolateral axes. Using live imaging of endogenously tagged proteins and tissue-specific protein depletion in the Caenorhabditis elegans embryonic intestine, we found that local and global polarity establishment are temporally and genetically separable. Local polarity is initiated prior to global polarity and is robust to perturbation. PAR-3 is required for global polarization across the …

Critical Translingual Perspectives On California Multilingual Education Policy, Eduardo R. Muñoz-Muñoz, Luis E. Poza, Allison Briceño

Faculty Research, Scholarly, and Creative Activity

Policies restricting bilingual education have yielded to policy frameworks touting its benefits. This shift corresponds with evolving lines of debate, focusing now on how bilingual education can best support racialized bilingual learners. One element of this new debate is the perspective on language underlying curriculum in bilingual programs, with a focus on translanguaging– normalization of the language practices of bilingual communities and positing that bilinguals draw from a singular linguistic repertoire. This article examines initiatives undertaken in California between 2010 and 2019 using Critical Policy Analysis. The work highlights that while opportunities for translanguaging have arisen, tensions between heteroglossic perspectives …

Spartan Daily, October 25, 2022, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2022

Volume 159, Issue 27

Algorithmic Design Of 3d Wireframe Rna Polyhedra, Antti Elonen, Ashwin Karthick Natarajan, Ibuki Kawamata, Lukas Oesinghaus, Abdulmelik Mohammed, Jani Seitsonen, Yuki Suzuki, Friedrich C. Simmel, Anton Kuzyk, Pekka Orponen

Faculty Research, Scholarly, and Creative Activity

We address the problem of de novo design and synthesis of nucleic acid nanostructures, a challenge that has been considered in the area of DNA nanotechnology since the 1980s and more recently in the area of RNA nanotechnology. Toward this goal, we introduce a general algorithmic design process and software pipeline for rendering 3D wireframe polyhedral nanostructures in single-stranded RNA. To initiate the pipeline, the user creates a model of the desired polyhedron using standard 3D graphic design software. As its output, the pipeline produces an RNA nucleotide sequence whose corresponding RNA primary structure can be transcribed from a DNA …

Rise And Shine: The Use Of Polychromatic Short-Wavelength-Enriched Light To Mitigate Sleep Inertia At Night Following Awakening From Slow-Wave Sleep, Cassie J. Hilditch, Lily R. Wong, Nicholas G. Bathurst, Nathan H. Feick, Sean Pradhan, Amanda Santamaria, Nita L. Shattuck, Erin E. Flynn-Evans

Faculty Research, Scholarly, and Creative Activity

Sleep inertia is the brief period of performance impairment and reduced alertness experienced after waking, especially from slow-wave sleep. We assessed the efficacy of polychromatic short-wavelength-enriched light to improve vigilant attention, alertness and mood immediately after waking from slow-wave sleep at night. Twelve participants (six female, 23.3 ± 4.2 years) maintained an actigraphy-confirmed sleep schedule of 8.5 hr for 5 nights, and 5 hr for 1 night prior to an overnight laboratory visit. In the laboratory, participants were awakened from slow-wave sleep, and immediately exposed to either dim, red ambient light (control) or polychromatic short-wavelength-enriched light (light) for 1 hr …

Tntdetect.Ai: A Deep Learning Model For Automated Detection And Counting Of Tunneling Nanotubes In Microscopy Images, Yasin Ceran, Hamza Ergüder, Katherine Ladner, Sophie Korenfeld, Karina Deniz, Sanyukta Padmanabhan, Phillip Wong, Murat Baday, Thomas Pengo, Emil Lou, Chirag B. Patel

Faculty Research, Scholarly, and Creative Activity

Background: Tunneling nanotubes (TNTs) are cellular structures connecting cell membranes and mediating intercellular communication. TNTs are manually identified and counted by a trained investigator; however, this process is time-intensive. We therefore sought to develop an automated approach for quantitative analysis of TNTs. Methods: We used a convolutional neural network (U-Net) deep learning model to segment phase contrast microscopy images of both cancer and non-cancer cells. Our method was composed of preprocessing and model development. We developed a new preprocessing method to label TNTs on a pixel-wise basis. Two sequential models were employed to detect TNTs. First, we identified the regions …

Assessing The State Of Rainwater For Consumption In A Community In Dire Need Of Clean Water: Human And Health Risk Using Herisk, Imokhai Theophilus Tenebe, Praisegod C. Emenike, E. O. Babatunde, J. B. Neris, Omowunmi H. Fred-Ahmadu, Nathaniel Dede-Bamfo, Egbe Etu Etu, Nkpa M. Ogarekpe, Joshua Emakhu, Nsikak U. Benson

Faculty Research, Scholarly, and Creative Activity

This study examines the case of Ekpoma community, Edo State, Nigeria, where roof-harvested rainwater is the primary source of water for drinking and domestic purposes. Eight potentially toxic elements (PTEs), namely aluminum, chromium, copper, iron, manganese, nickel, lead, and zinc, were detected in rainwater samples, collected and analyzed from 54 sampling locations across the community. The elemental concentrations were quantified using atomic absorption spectrophotometry and compared using the regulatory standards of the World Health Organization, United States Environmental Protection Agency, and Nigerian Drinking Water Quality Standards. The PTEs detected in the rainwater samples can be attributed to the nature of …

Advances In Non-Invasive Biosensing Measures To Monitor Wound Healing Progression, Walker D. Short, Oluyinka O. Olutoye, Benjamin W. Padon, Umang M. Parikh, Daniel Colchado, Hima Vangapandu, Shayan Shams, Taiyun Chi, Jangwook P. Jung, Swathi Balaji

Faculty Research, Scholarly, and Creative Activity

Impaired wound healing is a significant financial and medical burden. The synthesis and deposition of extracellular matrix (ECM) in a new wound is a dynamic process that is constantly changing and adapting to the biochemical and biomechanical signaling from the extracellular microenvironments of the wound. This drives either a regenerative or fibrotic and scar-forming healing outcome. Disruptions in ECM deposition, structure, and composition lead to impaired healing in diseased states, such as in diabetes. Valid measures of the principal determinants of successful ECM deposition and wound healing include lack of bacterial contamination, good tissue perfusion, and reduced mechanical injury and …

Spartan Daily, September 14, 2022, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2022

Volume 159, Issue 10