Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2022

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 841 - 870 of 41713

Full-Text Articles in Entire DC Network

Peat And Patty: Providing A Voice For Nature Through Animation, Clinnie Brinson Dec 2022

Peat And Patty: Providing A Voice For Nature Through Animation, Clinnie Brinson

Electronic Theses and Dissertations, 2020-2023

Peat and Patty is a 3D animated short story of a young scientist, Patty, and her pet parrot Peat, whose goal is to save their world from a dying ecosystem. Ultimately, they inadvertently receive help from a nearby polar bear which leads to the success of Patty's experiment. The purpose of this story is to highlight the dangers of global warming to our own ecosystem thus building eco-consciousness in viewers. We currently have natural disasters increasing in frequency, a rising global temperature, and pollution in our bodies of water (Rossati). By personifying nature, animation can invoke empathy from viewers towards …


Quantifying Volatile Fatty Acid Concentrations During The Pretreatment And Anaerobic Digestion Process, Sascha Boutelle Dec 2022

Quantifying Volatile Fatty Acid Concentrations During The Pretreatment And Anaerobic Digestion Process, Sascha Boutelle

Theses and Dissertations

Producing renewable energy from biomass or from the wastewater treatment process has gained momentum in the past 20 years. Anaerobic digestion has historically been used as one step in the waste treatment process, to both reduce the mass of waste that needs to be disposed of and to generate biogas. This process is typically only able to reduce 30-40% of the waste mass because of the recalcitrant nature of the waste streams being treated. Anaerobic pretreatment with the thermophilic bacteria Caldicellulosiruptor bescii (C. bescii) has been proven to increase the percentage of mass digested and consequently increase methane production to …


Neuromotor Changes In Participants With A Concussion History Can Be Detected With A Custom Smartphone App, Christopher K. Rhea, Masahiro Yamada, Nikita A. Kuznetsov, Jason T. Jakiela, Chanel T. Lojacono, Scott E. Ross, F. J. Haran, Jason M. Bailie, W. Geoffrey Wright Dec 2022

Neuromotor Changes In Participants With A Concussion History Can Be Detected With A Custom Smartphone App, Christopher K. Rhea, Masahiro Yamada, Nikita A. Kuznetsov, Jason T. Jakiela, Chanel T. Lojacono, Scott E. Ross, F. J. Haran, Jason M. Bailie, W. Geoffrey Wright

Moss-Magee Rehabilitation Papers

Neuromotor dysfunction after a concussion is common, but balance tests used to assess neuromotor dysfunction are typically subjective. Current objective balance tests are either cost- or space-prohibitive, or utilize a static balance protocol, which may mask neuromotor dysfunction due to the simplicity of the task. To address this gap, our team developed an Android-based smartphone app (portable and cost-effective) that uses the sensors in the device (objective) to record movement profiles during a stepping-in-place task (dynamic movement). The purpose of this study was to examine the extent to which our custom smartphone app and protocol could discriminate neuromotor behavior between …


Torward Real-World Cross-View Image Geo-Localization, Sijie Zhu Dec 2022

Torward Real-World Cross-View Image Geo-Localization, Sijie Zhu

Electronic Theses and Dissertations, 2020-2023

Cross-view image geo-localization aims to determine the locations of street-view query images by searching in a GPS-tagged reference image database from aerial view. One fundamental challenge is the dramatic view-point/domain difference between the street-view query images and aerial-view reference images. Recent works have made great progress on bridging the domain gap with advanced deep learning techniques and geometric prior knowledge, i.e. the query is aligned at the center of one aerial-view reference image (spatial alignment) and the orientation relationship between the two views is known (orientation alignment). However, such prior knowledge of the geometry correspondence of the two views is …


High Performance And Low Cost Passivating, Carrier-Selective Contacts For Silicon Photovoltaics, Jannatul Ferdous Mousumi Dec 2022

High Performance And Low Cost Passivating, Carrier-Selective Contacts For Silicon Photovoltaics, Jannatul Ferdous Mousumi

Electronic Theses and Dissertations, 2020-2023

The world is now focusing on expanding renewable energy sources to reduce the carbon footprint and mitigate climate change. Solar energy is one of the most environment-friendly and fastest-growing renewable energy sources in the present world. While crystalline silicon (c-Si) based devices dominate the global photovoltaics (PV) market with a current share of 95%, it is still challenging to achieve the theoretical efficiency limit of 29.4% with this technology due to a few performance limiting factors. Contact recombination losses are dominant among them which result from the recombination of photo-generated charge carriers due to the presence of defects at the …


Risk Management Of Carbon Steel Piping In Sweet Environment Multiphase Fluid Production, Triadhi Panthun Tiggor, Rini Riastuti Dec 2022

Risk Management Of Carbon Steel Piping In Sweet Environment Multiphase Fluid Production, Triadhi Panthun Tiggor, Rini Riastuti

Journal of Materials Exploration and Findings

As well reserved depleted and limited, it is necessary to lower the capital expenditure so that lifting SZ reservoir be more profitable. This article first contextualizes the effort done to increase the hydrocarbon lifting in a mature field. Despite the importance to sustain the production, and massive studies done to quantify the associate risk, no structured methodology proposed to manage the risk in respect to optimize the production expenditure by selection of carbon steel as alternative for corrosion resistance material piping. Hence, this article proposed a framework to support the decision-making process to operate in safely manner. Real case study …


Investigating The Pedagogical Content Knowledge Of Georgia 6-12 Science Teachers In Relation To Conservation Of Mass, Lyric Portwood Dec 2022

Investigating The Pedagogical Content Knowledge Of Georgia 6-12 Science Teachers In Relation To Conservation Of Mass, Lyric Portwood

Doctor of Education in Secondary and Middle Grades Education Dissertations

The Law of Conservation of Matter is a crosscutting concept in science that has implications for all disciplines of science. Conservation of Matter concepts are interwoven into all middle school and high school science courses both within the Next Generation Science Standards (NGSS) and the Georgia Standards of Excellence (GSE). For students to become scientifically literate, teachers of science must be able to articulate the content accurately to students and anticipate student difficulties and misconceptions in understanding the content. In order to ensure that students successfully learn said content, science teachers must possess both content knowledge and pedagogical content knowledge. …


Understanding The Ahupua'a: Using Remote Sensing To Measure Upland Erosion And Evaluate Coral Reef Structure, Logan Kalaiwaipono Ellis Dec 2022

Understanding The Ahupua'a: Using Remote Sensing To Measure Upland Erosion And Evaluate Coral Reef Structure, Logan Kalaiwaipono Ellis

Theses and Dissertations

Under ever intensifying pressures from land use, climate change, and erosion, tropical islands are among the most vulnerable systems in the world. Terrestrial systems are weakened by intensifying land use patterns, the weakening of which is highlighted when high intensity rainfall events erode sediment and leads to sediment deposition on the marine system. The deposition of sediment on the marine system is a major stressor that can lead to weakened coral reefs and a decrease in marine resources commonly gathered for food. These interactions have led to the emergence of biocultural resource management strategies, one of which is the ahupua'a …


Effects Of Exposure To Atmospheric Humidity On Breakdown Field Strength Measurements Of Polymers, Megan Loveland Dewaal Dec 2022

Effects Of Exposure To Atmospheric Humidity On Breakdown Field Strength Measurements Of Polymers, Megan Loveland Dewaal

Physics Capstone Projects

This study investigates the effects of absorbed water introduced via exposure to atmospheric humidity on electrostatic breakdown field strength measurements of polymers. Conducting breakdown tests under sample conditions appropriate for different applications is essential. If the breakdown field strength is overestimated for an application, an insulator may be used inappropriately in high electric fields where they are more likely to break down. Comparisons are made between: sets of pristine samples, samples that underwent a thorough vacuum bake out to remove absorbed water, and samples subject to subsequent incremental prolonged atmospheric exposure. These investigated the effects of absorbed water and determined …


Effect Of Educational Guidelines On Newly Mother's Knowledge And Practices.Pdf, Sara Sayed Abdalla Dec 2022

Effect Of Educational Guidelines On Newly Mother's Knowledge And Practices.Pdf, Sara Sayed Abdalla

Nursing

No abstract provided.


The Facile Preparation Of Bis(Imino)Pyridine Complexes Via Mechanochemistry And Inorganic Synthons Via Benign Reductants, Thomas Shaw Dec 2022

The Facile Preparation Of Bis(Imino)Pyridine Complexes Via Mechanochemistry And Inorganic Synthons Via Benign Reductants, Thomas Shaw

Electronic Theses and Dissertations, 2020-2023

This thesis is comprised of two key themes: (i) leveraging mechanochemical synthetic methods for the green preparation of bis(imino)pyridine ligands and associated first row transition metal coordination complexes, and (ii) the preparation and characterization of both historic and novel mid-valent inorganic synthons via the use of dimethylphenylsilane as a stoichiometric reducing agent. The first portion of this thesis highlights the utilization of solvent-free vibratory ball-milling in lieu of traditional, solvent-based refluxes. A variety of both bis(imino)pyridine ligands and complexes were formed in drastically reduced timeframes with solvent-economical work-up procedures. This methodology was also leveraged for the isolation of acetyl(imino)pyridine ligands …


As You Like It: Building, Executing, And Assessing An Adaptable Library Instruction Program For First-Year Experience Courses, Joy I. Hansen Dec 2022

As You Like It: Building, Executing, And Assessing An Adaptable Library Instruction Program For First-Year Experience Courses, Joy I. Hansen

Communications in Information Literacy

Providing targeted experiences for first-year students both inside and outside the classroom is essential for building connections and creating a foundation for skill development necessary for academic success. Many first-year programs include a standalone course for incoming students or specific content weaved into existing course offerings. Information literacy skill-building holds an important place in these efforts; therefore, instruction librarians are provided additional opportunities to collaborate with faculty and reach students. Depending upon the size of the institution, however, the sheer number of first-year courses combined with shrinking library staff pose challenges. This Innovative Practices article is one library’s experience with …


The Impact Of Problem-Based Learning On Students Critical Thinking Skills And Peer Relationships, Rebecca Ostby Dec 2022

The Impact Of Problem-Based Learning On Students Critical Thinking Skills And Peer Relationships, Rebecca Ostby

Dissertations, Theses, and Projects

Education is a field that is constantly in motion. It is changing and adapting as educators and researchers try new concepts or ideas. One shift is implementing mathematics curriculum's that focus on problem-based learning. Throughout researching problem-based learning, there was a theme of its impacts on 21st-century skills that students possessed. Therefore, these research questions were created: How does problem-based learning in mathematics impact the critical thinking skills of middle school students? What is the impact of increased opportunities for critical thinking on students' collaboration with each other? Learners in an 8th-grade Algebra 1 class took a Likert …


A Very Luminous Jet From The Disruption Of A Star By A Massive Black Hole, Igor Andreoni, Michael W. Coughlin, Daniel A. Perley, Yuhan Yao, Wenbin Lu, S. Bradley Cenko, Harsh Kumar, Shreya Anand, Anna Y.Q. Ho, Mansi M. Kasliwal, Antonio De Ugarte Postigo, Ana Sagués-Carracedo, Steve Schulze, D. Alexander Kann, S. R. Kulkarni, Jesper Sollerman, Nial Tanvir, Armin Rest, Luca Izzo, Jean J. Somalwar, David L. Kaplan, Tomás Ahumada, G. C. Anupama, Katie Auchettl, Sudhanshu Barway, Eric C. Bellm, Varun Bhalerao, Joshua S. Bloom, Michael Bremer, Mattia Bulla, Eric Burns, Sergio Campana, Poonam Chandra Dec 2022

A Very Luminous Jet From The Disruption Of A Star By A Massive Black Hole, Igor Andreoni, Michael W. Coughlin, Daniel A. Perley, Yuhan Yao, Wenbin Lu, S. Bradley Cenko, Harsh Kumar, Shreya Anand, Anna Y.Q. Ho, Mansi M. Kasliwal, Antonio De Ugarte Postigo, Ana Sagués-Carracedo, Steve Schulze, D. Alexander Kann, S. R. Kulkarni, Jesper Sollerman, Nial Tanvir, Armin Rest, Luca Izzo, Jean J. Somalwar, David L. Kaplan, Tomás Ahumada, G. C. Anupama, Katie Auchettl, Sudhanshu Barway, Eric C. Bellm, Varun Bhalerao, Joshua S. Bloom, Michael Bremer, Mattia Bulla, Eric Burns, Sergio Campana, Poonam Chandra

Faculty Publications

Tidal disruption events (TDEs) are bursts of electromagnetic energy that are released when supermassive black holes at the centres of galaxies violently disrupt a star that passes too close1. TDEs provide a window through which to study accretion onto supermassive black holes; in some rare cases, this accretion leads to launching of a relativistic jet2–9, but the necessary conditions are not fully understood. The best-studied jetted TDE so far is Swift J1644+57, which was discovered in γ-rays, but was too obscured by dust to be seen at optical wavelengths. Here we report the optical detection of …


Recommendations For Sustainable Tourism In Patagonia: An Exploratory Analysis Of Sustainable Tourism In Costa Rica, The Nordic Region, And Thailand’S Communities, Julia K. Lowery Dec 2022

Recommendations For Sustainable Tourism In Patagonia: An Exploratory Analysis Of Sustainable Tourism In Costa Rica, The Nordic Region, And Thailand’S Communities, Julia K. Lowery

Undergraduate Honors Theses

This thesis explores different levels of governance and its role towards actualizing sustainable tourism in Patagonia. With the growing threat of climate change, international destinations such as Patagonia are looking to continue building their tourism industries in a sustainable way. Through analyzing case studies of national governance in Costa Rica, multi-national governance in the Nordic region, and community-based tourism in Thailand, we can better understand how each form of governance has the potential to create a sustainable tourism industry. With this understanding of successful governance in my case studies, as well as understanding the historical and political forces that have …


From Sierra To Alma: A Transformative Experience At Saint Mary’S College Of California, Elise Y. Wong Dec 2022

From Sierra To Alma: A Transformative Experience At Saint Mary’S College Of California, Elise Y. Wong

Staff Works

No abstract provided.


Student Perceptions In Conferring: A Phenomenographic Exploration Of Student Perceptions On Teacher-Student Writing Conferences, Jacqueline Johnson Dec 2022

Student Perceptions In Conferring: A Phenomenographic Exploration Of Student Perceptions On Teacher-Student Writing Conferences, Jacqueline Johnson

Doctor of Education in Secondary and Middle Grades Education Dissertations

This phenomenographic research explores how students perceive one-on-one (teacher-student) writing conferences. At least twice a year, I sit with my 9th-grade English students to discuss their writing. Together, we go over their last writing assignment. I coach them to make their writing better while pointing out positive elements of their writing. I check for understanding by having the students verbally repeat a summary of their conference. While I feel connected to the students and their writing by conferring, I have rarely considered what they thought about the conference. After our conference, do they feel like they truly learned something? I …


Native American Boarding School Bands And Their Bandmasters. Project File 2: Bands At The Omaha Indian Congresses, 1898 & 1899, Peter M. Lefferts Dec 2022

Native American Boarding School Bands And Their Bandmasters. Project File 2: Bands At The Omaha Indian Congresses, 1898 & 1899, Peter M. Lefferts

Glenn Korff School of Music: Faculty Publications

This is the second of five on-line text files in which I assemble my research notes about boys’ bands and their bandmasters at the US government’s Native American off-reservation inter-tribal boarding schools. In general, it is material that covers a span of about fifty years from the 1880s to the 1930s, though the present document concentrates on the Omaha expositions of 1898 and 1899. I principally have put into some kind of order a mass of data that draws upon online digital newspapers and genealogy databases. What follows here is not a finished, polished document. Everything on offer is still …


The Benefits Of Using Inclusive Literature In Kindergarten Through Fifth Grade Classrooms, Guidelines For Selecting Inclusive Texts, And Resources To Help Teachers, Librarians, And Community Members Use Inclusive Children’S Books, Erin Lynch Dec 2022

The Benefits Of Using Inclusive Literature In Kindergarten Through Fifth Grade Classrooms, Guidelines For Selecting Inclusive Texts, And Resources To Help Teachers, Librarians, And Community Members Use Inclusive Children’S Books, Erin Lynch

Honors Projects

This project outlines the great importance of inclusive children’s literature and the benefits of implementing high-quality, inclusive picture books within elementary school classrooms. Additionally, the project provides suggested guidelines for selecting inclusive literature as well as copious examples of high-quality picture books within a variety of subject matter categories. In addition to a thorough paper, this project contains a large online resource referred to as the “Virtual Library” that utilizes technology and graphic design to simulate a real library full of inclusive literature.


Nanoparticle Conjugated Photosensitizer For Targeted Photodynamic Inactivation Of Cancer Cells, Symone D. Crowder Dec 2022

Nanoparticle Conjugated Photosensitizer For Targeted Photodynamic Inactivation Of Cancer Cells, Symone D. Crowder

Honors College Theses

Photodynamic therapy (PDT) is considered to be a potential replacement for traditional methods of chemotherapy. It includes the administration of photosensitizing agents (PS), which generate reactive oxygen species (ROS) upon excitation at a specific wavelength. With new outlooks and techniques, cancer research is advancing each day. It has allowed the progress of several theranostic drug delivery systems (DDS) exploring the area of nanomedicine.2 In the present work, a Rhodamine derivative, Rhodamine 6G (R6G) was used as the PS. In general, rhodamine compounds undergo cytotoxic reactions on photoexcitation by electron transfer reactions with folic acid within cells, making them a favorable …


Leveraging Fpga Primitives To Improve Word Reconstruction During Netlist Reverse Engineering, Reilly Mckendrick, Corey Simpson, Brent Nelson, Jeffrey Goeders Dec 2022

Leveraging Fpga Primitives To Improve Word Reconstruction During Netlist Reverse Engineering, Reilly Mckendrick, Corey Simpson, Brent Nelson, Jeffrey Goeders

Faculty Publications

While attempting to perform hardware trojan detection, or other low-level design analyses, it is often necessary to inspect and understand the gate-level netlist of an implemented hardware design. Unfortunately this process is challenging, as at the physical level, the design does not contain any hierarchy, net names, or word groupings. Previous work has shown how gate-level netlists can be analyzed to restore high-level circuit structures, including reconstructing multi-bit signals, which aids a user in understanding the behavior of the design. In this work we explore improvements to the word reconstruction process, specific to FPGA platforms. We demonstrate how hard-block primitives …


The Physics Of Associative Polymers And Applications To Biomolecular Condensates, Furqan Dar Dec 2022

The Physics Of Associative Polymers And Applications To Biomolecular Condensates, Furqan Dar

Arts & Sciences Graduate Student Theses and Dissertations

Biomolecular condensates represent a new and ubiquitous class of membraneless organelles (MLOs) that are essential for healthy cellular functioning. The constituent molecules of such condensates span a vast bio-macromolecular gamut from intrinsically disordered regions and proteins (IDPs/IDRs), to RNA and RNA-binding proteins (RNPs), to polymerases and DNA etc. Apart from being part of the regular healthy cell cycle, these condensates are also implicated in many diseases, most notably progressive neurodegenerative diseases like Amyotropic Lateral Sclerosis (ALS) and Huntingtin's Disease (HD). Since the constituent molecules of these condensates span a broad range of length scales and modes of interaction, uncovering a …


Testing Of A Novel Combined Eating-Disorder And Weight-Loss Online Guided-Self Help Intervention For Young Adults With A Binge-Type Eating Disorder And Overweight Or Obesity, Grace Elise Monterubio Dec 2022

Testing Of A Novel Combined Eating-Disorder And Weight-Loss Online Guided-Self Help Intervention For Young Adults With A Binge-Type Eating Disorder And Overweight Or Obesity, Grace Elise Monterubio

Arts & Sciences Graduate Student Theses and Dissertations

Binge-type eating disorders (EDs) and obesity-related health concerns are two serious medical issues, though study of their treatment has largely remained separate. This study implemented an online, guided self-help ED intervention that concurrently offered Cognitive Behavioral Therapy (CBT)-based tools to improve ED symptoms, while also teaching energy-density food principles of behavioral weight loss (BWL), for individuals with clinical/sub-clinical binge-type EDs with comorbid overweight/obesity. The study aimed to examine change in weight, change in ED symptoms, and program engagement between a combined intervention (CBT + BWL) and an ED-only intervention. Participants in the combined intervention group received weekly session content pertaining …


Extensive Behavioral Phenotyping Of Williams Syndrome Locus Relevant Mouse Models To Assess Contributions Of Oxytocin And Gtf2ird1, Kayla Rose Nygaard Dec 2022

Extensive Behavioral Phenotyping Of Williams Syndrome Locus Relevant Mouse Models To Assess Contributions Of Oxytocin And Gtf2ird1, Kayla Rose Nygaard

Arts & Sciences Graduate Student Theses and Dissertations

The Williams Syndrome Critical Region (WSCR) at chromosome 7q11.23 provides a unique opportunity to untangle the relationship between genotype and phenotype in complex behaviors, from fear and anxiety to sociability and sensorimotor processing. Copy number variations (CNVs) in this region result in two syndromes, Williams Syndrome (WS) and Duplication 7q11.23 Syndrome (Dup7), which display phenotypes that may align, indicating a common disruption of a system, or diverge, reflecting an underlying gene dosage-dependent effect. While case studies of atypical deletions resulting in WS have implicated telomeric genes Gtf2ird1 and Gtf2i in the cognitive and behavioral profiles of WS, proving causation requires …


Effects Of Forest Structure And Human Influence On The Call Rate Of Owls In The Piedmont Forest Of Northwestern Argentina, Maila Scheffer, N. Politi, S. Martinuzzi, L. Rivera Dec 2022

Effects Of Forest Structure And Human Influence On The Call Rate Of Owls In The Piedmont Forest Of Northwestern Argentina, Maila Scheffer, N. Politi, S. Martinuzzi, L. Rivera

Neotropical Biodiversity

No abstract provided.


Native Language Attrition Among Immigrants, Fawzia Riji Dec 2022

Native Language Attrition Among Immigrants, Fawzia Riji

Dissertations, Theses, and Projects

This study was a literature review, and it focused on native language attrition among immigrants. For many years, immigrant families have moved to places such as the United States and Europe as well as Canada because of war, abuse, persecution, environmental degradation, and poverty in their home countries. Once immigrant families arrived in their designated country, their children were placed in school. Due to the struggle with the language barrier, kids and adults quickly started to focus extensively on learning the English language.

The research occurred due to parents' raised concerns regarding their children's inability to communicate in their first …


Multi-Plane Light Conversion: Devices And Applications, Yuanhang Zhang Dec 2022

Multi-Plane Light Conversion: Devices And Applications, Yuanhang Zhang

Electronic Theses and Dissertations, 2020-2023

Multi-plane light conversion (MPLC) has recently been developed as a versatile tool for manipulating spatial distributions of the optical field through repeated phase modulations. An MPLC Device consists of a series of phase masks separated by free-space propagation. It can convert one orthogonal set of beams into another orthogonal set through unitary transformation, which is useful for a number of applications. In telecommunication, for example, mode-division multiplexing (MDM) is a promising technology that will enable continued scaling of capacity by employing spatial modes of a single fiber. MPLC has shown great potential in MDM devices with ultra-wide bandwidth, low insertion …


Designing A Supervised Feature Selection Technique For Mixed Attribute Data Analysis, Dong Hyun Jeong, Bong Keun Jeong, Nandi Leslie, Charles Kamhoua, Soo Yeon Ji Dec 2022

Designing A Supervised Feature Selection Technique For Mixed Attribute Data Analysis, Dong Hyun Jeong, Bong Keun Jeong, Nandi Leslie, Charles Kamhoua, Soo Yeon Ji

Management and Decision Sciences

Identifying optimal features is critical for increasing the overall performance of data classification. This paper introduces a supervised feature selection technique for analyzing mixed attribute data. It measures data classification performances of features with a user-defined performance criterion and determines optimal features to boost the overall data analysis performance. A performance evaluation is managed to highlight the usefulness of the technique with existing feature selection techniques such as analysis of variance test, chi-square test, principal component analysis, and mutual information. Visualization is also utilized to understand the differences in classifying instances with different features. From a comparative performance testing and …


Leveraging System Context To Understand Collaborative Systems In Modern Public Management, Catherine Annis Dec 2022

Leveraging System Context To Understand Collaborative Systems In Modern Public Management, Catherine Annis

Dissertations - ALL

Complex and boundary-spanning problems like overpopulation, hunger, pandemics, homelessness, and environmental degradation occur more frequently now than ever (Bynander & Nohrstedt, 2019; Criado & Guevara-Gómez, 2021; Huang, 2020; Kapucu, 2015; Getha-Taylor, 2007; Jayasinghe et al., 2022). Policymakers increasingly address these challenges through interorganizational collaboration (Isett et al., 2011). Countries worldwide now use collaborative governance to respond to such wicked problems (Jayasinghe et al., 2022; Huang, 2020; Megawati et al., 2020). Despite growing in popularity, gaps remain in understanding collaborative governance at scale. In this dissertation, I present research on the interconnected nature of collaborative governance initiatives in the United States …


Advanced Deep Learning Methodologies For Deepfake Detection, Aminollah Khormali Dec 2022

Advanced Deep Learning Methodologies For Deepfake Detection, Aminollah Khormali

Electronic Theses and Dissertations, 2020-2023

The recent advances in the field of Artificial Intelligence (AI), particularly Generative Adversarial Networks (GANs) and an abundance of training samples along with robust computational resources have significantly propelled the field of AI-generated fake information in all kinds, e.g., deepfakes. Deepfakes are among the most sinister types of misinformation, posing large-scale and severe security and privacy risks targeting critical governmental institutions and ordinary people across the world. The fact that deepfakes are AI-generated digital content and not actual events captured by a camera implies that they still can be detected using advanced AI models. Although the deepfake detection task has …