Digital Commons Network^™

Machine Learning Predictions Of Electricity Capacity, Marcus Harris, Elizabeth Kirby, Ameeta Agrawal, Rhitabrat Pokharel, Francis Puyleart, Martin Zwick

Complex Systems Faculty Publications and Presentations

This research applies machine learning methods to build predictive models of Net Load Imbalance for the Resource Sufficiency Flexible Ramping Requirement in the Western Energy Imbalance Market. Several methods are used in this research, including Reconstructability Analysis, developed in the systems community, and more well-known methods such as Bayesian Networks, Support Vector Regression, and Neural Networks. The aims of the research are to identify predictive variables and obtain a new stand-alone model that improves prediction accuracy and reduces the INC (ability to increase generation) and DEC (ability to decrease generation) Resource Sufficiency Requirements for Western Energy Imbalance Market participants. This …

Regulatory Managerialism As Gaslighting Government, Jodi L. Short

Faculty Scholarship

No abstract provided.

The Impact Of Whole Fruits High In Anthocyanins On Blood Lipids In Middle-Aged Women, Denise N. Leininger

Cal Poly Humboldt theses and projects

Cardiometabolic Diseases (CMDs) are the leading cause of morbidity and mortality among women. During the menopause transition, drops in estrogen play a favorable role in the excess accumulation of Intraabdominal Fat (IAF), altering blood lipid metabolism and inducing inflammatory responses in CMDs attributed to dyslipidemia. This systematic review and meta-analysis examined current research on the effects of whole fruits high in anthocyanins on blood lipid metabolism in women at risk for CMDs. This meta-analysis included 15 studies using the PRISMA 2020 guidelines. Overall, effect sizes were not significant when exploring blood lipid marker outcomes High-Density Lipoprotein (HDL), Low-Density Lipoprotein (LDL), …

Creating An Internal Work-Based Learning Program For Students Who Are Not College-Bound, Rob J. Zamboni Mr.

Cal Poly Humboldt theses and projects

My research is qualitative on a small group of my students who register for my auto shop every year. These students don't all want to become auto mechanics but like working with their hands and are interested in going into the trades. Because of this I noticed a need to these students who are not going to college. I found another high school that is currently operating an internal Work-Based Learning program. A WBL program is set up for students to go to during the last two periods of the day and shadow a tradesperson on the job. This gives …

Socio-Economic Comparative Analysis Of Front-Of-The-Meter And Behind-The-Meter Microgrids For Panamnik, Olivia C. Amann Mcshea

Cal Poly Humboldt theses and projects

In Northern California, the Karuk Tribe is feeling the effects of climate change on inadequate energy infrastructures leading to unreliable power supply. Improving energy reliability in a way that also increases energy sovereignty is necessary. Renewable energy microgrids have emerged as a pathway forward.

Modeling ownership structures and cash flows for different microgrid configurations can support the Tribe’s implementation of a microgrid in Orleans, CA that maximizes community benefits. This thesis considers a front-of-the-meter (FTM) and behind-the-meter (BTM) configuration, both approximately 2 MW solar PV and 3 MW/12 MWh battery energy storage. Cash flows including capital costs, operations and maintenance …

Recent Advances In Experimental Design And Data Analysis To Characterize Prokaryotic Motility, Megan M. Dubay, Jacqueline Acres, Max Riekeles, Jay Nadeau

Physics Faculty Publications and Presentations

Bacterial motility plays a key role in important cell processes such as chemotaxis and biofilm formation, but is challenging to quantify due to the small size of the individual microorganisms and the complex interplay of biological and physical factors that influence motility phenotypes. Swimming, the first type of motility described in bacteria, still remains largely unquantified. Light microscopy has enabled qualitative characterization of swimming patterns seen in different strains, such as run and tumble, run-reverse-flick, run and slow, stop and coil, and push and pull, which has allowed for elucidation of the underlying physics. However, quantifying these behaviors (e.g., identifying …

Electromagnetic Radiation From A Spherical Static Current Source Coupled To Harmonic Axion Field, Railing Chang, Huai-Yi Xie, P. T. Leung

Physics Faculty Publications and Presentations

The electromagnetic fields generated from a static current source on a spherical surface are calculated in the framework of axion electrodynamics to first order in the coupling parameter. Comparisons of the results are made with reference to various results obtained in conventional Maxwell electrodynamics, as well as previous results obtained for point magnetic dipole source coupled to harmonic axion fields. Distinct features from the results so obtained are highlighted for possible experimental probing of the axions via electromagnetic interactions. In particular, electromagnetic radiation from sources with strong magnetic field is studied which may enable the detection of a cosmic …

Botanical Updates From Psu, Gabriel Campbell

Rae Selling Berry Seed Bank and Plant Conservation Program

These slides summarize the botanical work conducted at PSU in 2022.

Indices Of Sarcopenic Obesity Are Important Predictors Of Finite Element Analysis-Derived Bone Strength In Older Adults With Obesity, Giulia Gregori, Arjun Paudyal, Yoann Barnouin, Alessandra Celli, Martha Belen Segoviano-Escobar, Reina Armamento-Villareal, Nicola Napoli, Clifford Qualls, Dennis T Villareal

Faculty, Staff and Students Publications

BACKGROUND: The expanding population of older adults with obesity is a public health challenge, in part, because of the increased risk of fractures despite normal or high bone mineral density. Potential factors predisposing to fractures in this group include sarcopenia associated with obesity and impaired bone quality. We aimed to determine the contribution of sarcopenic obesity (SO) indices to bone strength as assessed by microfinite element analysis (μFEA) of high-resolution peripheral quantitative computed tomography (HR-pQCT).

METHODS: One-hundred eighty-nine older (age ≥ 65 years) adults with obesity (BMI ≥ 30 kg/m

RESULTS: Both ALM/W and HGS were positively correlated explaining 28% …

Wastewater Pandemic Preparedness: Toward An End-To-End Pathogen Monitoring Program, Justin R Clark, Austen Terwilliger, Vasanthi Avadhanula, Michael Tisza, Juwan Cormier, Sara Javornik-Cregeen, Matthew Clayton Ross, Kristi Louise Hoffman, Catherine Troisi, Blake Hanson, Joseph Petrosino, John Balliew, Pedro A Piedra, Janelle Rios, Jennifer Deegan, Cici Bauer, Fuqing Wu, Kristina D Mena, Eric Boerwinkle, Anthony W Maresso

Faculty, Staff and Student Publications

Molecular analysis of public wastewater has great potential as a harbinger for community health and health threats. Long-used to monitor the presence of enteric viruses, in particular polio, recent successes of wastewater as a reliable lead indicator for trends in SARS-CoV-2 levels and hospital admissions has generated optimism and emerging evidence that similar science can be applied to other pathogens of pandemic potential (PPPs), especially respiratory viruses and their variants of concern (VOC). However, there are substantial challenges associated with implementation of this ideal, namely that multiple and distinct fields of inquiry must be bridged and coordinated. These include engineering, …

Transformations Between Rotational And Translational Invariants Formulated In Reciprocal Spaces, Philip R Baldwin

Faculty, Staff and Students Publications

Correlation functions play an important role in the theoretical underpinnings of many disparate areas of the physical sciences: in particular, scattering theory. More recently, they have become useful in the classification of objects in areas such as computer vision and our area of cryoEM. Our primary classification scheme in the cryoEM image processing system, EMAN2, is now based on third order invariants formulated in Fourier space. This allows a factor of 8 speed up in the two classification procedures inherent in our software pipeline, because it allows for classification without the need for computationally costly alignment procedures. In this work, …

Pre-Treatment Inflamed Tumor Immune Microenvironment Is Associated With Folfirinox Response In Pancreatic Cancer, Zachary Gao, Sung Wook Kang, Derek Erstad, Joseph Azar, George Van Buren, William Fisher, Zequn Sun, Mark P Rubinstein, Hyun-Sung Lee, E Ramsay Camp

Faculty, Staff and Students Publications

INTRODUCTION: Pancreatic adenocarcinoma (PDAC) is an aggressive tumor with limited response to both chemotherapy and immunotherapy. Pre-treatment tumor features within the tumor immune microenvironment (TiME) may influence treatment response. We hypothesized that the pre-treatment TiME composition differs between metastatic and primary lesions and would be associated with response to modified FOLFIRINOX (mFFX) or gemcitabine-based (Gem-based) therapy.

METHODS: Using RNAseq data from a cohort of treatment-naïve, advanced PDAC patients in the COMPASS trial, differential gene expression analysis of key immunomodulatory genes in were analyzed based on multiple parameters including tumor site, response to mFFX, and response to Gem-based treatment. The relative …

Ne Nya Sexpuritanerna, I. India Thusi

Articles by Maurer Faculty

This story is based on Sweden, where I conducted a legal ethnography that included interviews with several people selling sexual services there. Many of my observations are included in this story, and where indicated, I have included data shared with me during semi-structured interviews with my research participants. Where statements about Oceania are not directly cited, the intention is to provide a generalized account inspired by Swedish politics and culture. The only observation from this story that is fictionalized is Jasmine and Rebecca’s relationship to each other and their encounter on the subway station. They represent two of my informants, …

Cardiac Function, Structural, And Electrical Remodeling By Microgravity Exposure, Mary R Sy, Joshua A Keefe, Jeffrey P Sutton, Xander H T Wehrens

Faculty, Staff and Students Publications

Space medicine is key to the human exploration of outer space and pushes the boundaries of science, technology, and medicine. Because of harsh environmental conditions related to microgravity and other factors and hazards in outer space, astronauts and spaceflight participants face unique health and medical challenges, including those related to the heart. In this review, we summarize the literature regarding the effects of spaceflight on cardiac structure and function. We also provide an in-depth review of the literature regarding the effects of microgravity on cardiac calcium handling. Our review can inform future mechanistic and therapeutic studies and is applicable to …

Intermel: An International Biorepository And Clinical Database To Uncover Predictors Of Survival In Early-Stage Melanoma, Irene Orlow, Keimya D Sadeghi, Sharon N Edmiston, Jessica M Kenney, Cecilia Lezcano, James S Wilmott, Anne E Cust, Richard A Scolyer, Graham J Mann, Tim K Lee, Hazel Burke, Valerie Jakrot, Ping Shang, Peter M Ferguson, Tawny W Boyce, Jennifer S Ko, Peter Ngo, Pauline Funchain, Judy R Rees, Kelli O'Connell, Honglin Hao, Eloise Parrish, Kathleen Conway, Paul B Googe, David W Ollila, Stergios J Moschos, Eva Hernando, Douglas Hanniford, Diana Argibay, Christopher I Amos, Jeffrey E Lee, Iman Osman, Li Luo, Pei-Fen Kuan, Arshi Aurora, Bonnie E Gould Rothberg, Marcus W Bosenberg, Meg R Gerstenblith, Cheryl Thompson, Paul N Bogner, Ivan P Gorlov, Sheri L Holmen, Elise K Brunsgaard, Yvonne M Saenger, Ronglai Shen, Venkatraman Seshan, Eduardo Nagore, Marc S Ernstoff, Klaus J Busam, Colin B Begg, Nancy E Thomas, Marianne Berwick, Intermel Consortium

Faculty, Staff and Students Publications

INTRODUCTION: We are conducting a multicenter study to identify classifiers predictive of disease-specific survival in patients with primary melanomas. Here we delineate the unique aspects, challenges, and best practices for optimizing a study of generally small-sized pigmented tumor samples including primary melanomas of at least 1.05mm from AJTCC TNM stage IIA-IIID patients. We also evaluated tissue-derived predictors of extracted nucleic acids' quality and success in downstream testing. This ongoing study will target 1,000 melanomas within the international InterMEL consortium.

METHODS: Following a pre-established protocol, participating centers ship formalin-fixed paraffin embedded (FFPE) tissue sections to Memorial Sloan Kettering Cancer Center for …

Implications With Identifying Gifted Black Students: A Study Of Implicit Bias, Christen H. Diehl

All-Inclusive List of Electronic Theses and Dissertations

The purpose of this quantitative study was to examine if implicit bias among Indiana educators might affect the identification of gifted Black students for programming. Educators, within school districts with high minority populations, were asked to provide a demographic survey and then take the Implicit Association Test (IAT). Survey data were then collected to determine if potential demographic information like gender, race, the possession of a high ability license, years of experience, highest collegiate degree, or their professional role had a statistical significance when compared to their IAT score. Using t-tests and one-way ANOVAs, demographic data were able to be …

Spartina Species Invasive In Coastal Salt Marshes And Mudflats Of The Pacific Northwest, Gabriel E. Campbell, Ashley Newcomb, Jacob Rose

Center for Lakes and Reservoirs Publications and Presentations

Spartina (cordgrass) species are invasive plants that threaten the Pacific Northwest of the United States of America. This document contains a literature review, map of known occurrences, and identification guide of Spartina species invasive in coastal salt marshes and mudflats of the Pacific Northwest.

Aquatic Invasive Species Survey And Treatment On Lake Umatilla And Lake Celilo 2022-2023 Report, Gabriel E. Campbell, Jacob Rose

Center for Lakes and Reservoirs Publications and Presentations

Flowering Rush (Butomus umbellatus) is an invasive aquatic plant in the Pacific Northwest that threatens salmon habitat. The Center for Lakes and Reservoirs staff surveyed for this and other aquatic species from 2022 and 2023 in the Columbia River in Lake Umatilla and Lake Celilo. This document summarizes their survey efforts including their protocols, data, and small-scale removal efforts.

Experiments And Modelling Into Air Staging In A Fixed Bed Biomass Combustor, Awais Junejo

Theses: Doctorates and Masters

Combustion of biomass to produce heat and electricity has increased recently due to environmental concerns over the use of fossil fuels. Being CO2 neutral, biomass has the potential to replace solid fossil fuels, such as coal, in thermal power plants. Direct combustion of biomass is the most widely used thermochemical process to generate heat and electricity.

In staged biomass combustion, primary air is supplied beneath the fuel bed, with secondary air then provided above in the freeboard region. The freeboard can be divided into primary freeboard length (LI), which is upstream of secondary air, and a secondary freeboard length (LII), …

Aesthetic Choices: Defining The Range Of Aesthetic Views In Interactive Digital Media Including Games And 3d Virtual Environments (3d Ves), Hira Maqbool

Theses: Doctorates and Masters

Defining aesthetic choices for interactive digital media such as games is a challenging task. Objective and subjective factors such as colour, symmetry, order and complexity, and statistical features among others play an important role for defining the aesthetic properties of interactive digital artifacts. Computational approaches developed in this regard also consider objective factors such as statistical image features for the assessment of aesthetic qualities. However, aesthetics for interactive digital media, such as games, requires more nuanced consideration than simple objective and subjective factors, for choosing a range of aesthetic features.

From the study it was found that the there is …

Downstream Air Dilution And Biomass Pulverisation Into Bluff-Body And Swirl Stabilised Confined Turbulent Jets, Syed E. Gillani

Theses: Doctorates and Masters

Bluff-body and swirl-stabilised turbulent annular flows (single phase and multi-phase) find broad practical utility, especially in high-power non-premixed combustion applications. Their significance stems from features like their characteristic recirculation zones and intense upstream turbulence, both of which promote air-fuel mixing and aid in flame stabilisation. Moreover, in response to the push for low-emission and carbon-neutral fuel sources, there's a growing emphasis on integrating biomass, especially in its pulverised form, into major power generation systems. In practical gas turbine combustors featuring bluff-body and swirl stabilised flame burners, the incorporation of (air) side dilution jets plays a crucial role. These jets influence …

Plant-Herbivore Interactions In A Changing Climate And Implications For Seagrass Resilience, Caitlyn M. O'Dea

Theses: Doctorates and Masters

Climate change is affecting herbivore distributions and abundance, resulting in intensified grazing pressure on foundation species such as seagrasses. This, coupled with other, rapid changes in estuarine ecosystems, may threaten the resilience of seagrass. While the overall resilience of seagrasses is generally well-studied, the timeframes of recovery have received comparatively little attention, particularly in temperate estuaries. This study investigated the recovery time of two colonising seagrasses (Halophila ovalis and Ruppia megacarpa) following various intensities of simulated grazing in two southwestern Australian estuaries. Simulated grazing treatments (25%, 50%, 75%, and 100% removal from 1 m2 plots) were applied in field experiments …

Mass Spectrometry-Based Proteomic Analysis To Characterise Barley Breeding Lines, Mahya Bahmani

Theses: Doctorates and Masters

Barley is a key ingredient in the malting and brewing industry, and it is the fourth most important crop being cultivated worldwide. The protein content of the barley grain is one of the main components determining the quality and nutritive value of the food and beverages prepared from barley. Mass spectrometry-based proteomic analysis is a valuable tool that can guide and inform plant breeding strategies and crop improvement programs. Understanding the proteome changes in barley grain under different growing locations, the impact of different environmental conditions and its relationship with malting characteristics have the potential to inform breeding programs to …

Pattern And Polarization Diversity Multisector Annular Antenna For Iot Applications, Abel Zandamela, Nicola Marchetti, Max Ammann, Adam Narbudowicz, Wroclaw University Of Science And Technology

Articles

This work proposes a small pattern and polarization diversity multisector annular antenna with electrical size and profile of ka=1.2 and 0.018λ, respectively. The antenna is planar and comprises annular sectors that are fed using different ports to enable digital beamforming techniques, with efficiency and gain of up to 78%and 4.62 dBi, respectively. The cavity model analysis is used to describe the design concept and the antenna diversity. The proposed method can produce different polarization states (e.g., linearly and circularly polarized patterns) and pattern diversity characteristics covering the elevation plane. Owing to its small electrical size, low-profile and diversity properties, the …

Development Of Holographic Recording Material For Fabrication Of Solar Concentrators For Micro Satellites, Brian Rogers

Doctoral

Holographic solar concentration has been a topic of increasing interest over recent years because of the lightweight and physically compact nature of holograms, which gives them an advantage over other, conventional concentration methods. As holographic recording materials develop further, their characteristics prove to meet the demands required of them to make more effective holographic solar concentrators. The development of photovoltaics in tandem with holographic materials has led to a host of solar concentrating device designs that take advantage of the unique properties of diffractive optics. Compared to refractive optics, holographic devices are more lightweight and compact. This makes holographic devices …

Structured Dialogue State Management For Task-Oriented Dialogue Systems, Anh Duong Trinh

Doctoral

Human-machine conversational agents have developed at a rapid pace in recent years, bolstered through the application of advanced technologies such as deep learning. Today, dialogue systems are useful in assisting users in various activities, especially task-oriented dialogue systems in specific dialogue domains. However, they continue to be limited in many ways. Arguably the biggest challenge lies in the complexity of natural language and interpersonal communication, and the lack of human context and knowledge available to these systems. This leads to the question of whether dialogue systems, and in particular task-oriented dialogue systems, can be enhanced to leverage various language properties. …

Towards An Improved Understanding Of The Concept Of Style And Its Implications For Textual Style Transfer, Somayeh Jafaritazehjani

Doctoral

The concept of linguistic style denotes that many aspects of text can vary while maintaining a same source core semantic meaning. For example, a message may be written in a formal or informal style. The textual style transfer problem aims at generating a paraphrase of a given text by modifying its style while preserving its content. To the best of our knowledge, within the literature on textual style transfer, there is no standard widely accepted definition of the concept of style. Moreover, very few works have investigated the characteristics of language styles. Therefore, previous research, as far as our knowledge …

Schizo-Net: A Novel Schizophrenia Diagnosis Framework Using Late Fusion Multimodal Deep Learning On Electroencephalogram-Based Brain Connectivity Indices, Nitin Grover, Aviral Chharia, Rahul Upadhyay, Luca Longo

Articles

Schizophrenia (SCZ) is a serious mental condition that causes hallucinations, delusions, and disordered thinking. Traditionally, SCZ diagnosis involves the subject’s interview by a skilled psychiatrist. The process needs time and is bound to human errors and bias. Recently, brain connectivity indices have been used in a few pattern recognition methods to discriminate neuro-psychiatric patients from healthy subjects. The study presents Schizo-Net , a novel, highly accurate, and reliable SCZ diagnosis model based on a late multimodal fusion of estimated brain connectivity indices from EEG activity. First, the raw EEG activity is pre-processed exhaustively to remove unwanted artifacts. Next, six brain …

An Aggregation-Based Algebraic Multigrid Method With Deflation Techniques And Modified Generic Factored Approximate Sparse Inverses, Anastasia Natsiou, George A. Gravvanis, Christos K. Filelis-Papadopoulos, Konstantinos M. Giannoutakis

Articles

In this paper, we examine deflation-based algebraic multigrid methods for solving large systems of linear equations. Aggregation of the unknown terms is applied for coarsening, while deflation techniques are proposed for improving the rate of convergence. More specifically, the V-cycle strategy is adopted, in which, at each iteration, the solution is computed by initially decomposing it utilizing two complementary subspaces. The approximate solution is formed by combining the solution obtained using multigrids and deflation. In order to improve performance and convergence behavior, the proposed scheme was coupled with the Modified Generic Factored Approximate Sparse Inverse preconditioner. Furthermore, a parallel version …

Towards Sweetness Classification Of Orange Cultivars Using Short‑Wave Nir Spectroscopy, Ayesha Zeb, Waqar Shahid Qureshi, Abdul Ghafoor, Amanullah Malik, Muhammad Imran, Alina Mirza, Mohsin Islam Tiwana, Eisa Alanazi

Articles

The global orange industry constantly faces new technical challenges to meet consumer demands for quality fruits. Instead of traditional subjective fruit quality assessment methods, the interest in the horticulture industry has increased in objective, quantitative, and non-destructive assessment methods. Oranges have a thick peel which makes their non-destructive quality assessment challenging. This paper evaluates the potential of short-wave NIR spectroscopy and direct sweetness classification approach for Pakistani cultivars of orange, i.e., Red-Blood, Mosambi, and Succari. The correlation between quality indices, i.e., Brix, titratable acidity (TA), Brix: TA and BrimA (Brix minus acids), sensory assessment of the fruit, and short-wave NIR …