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Melt Inclusion Record Of Submarine Caldera Formation On Axial Seamount, Juan De Fuca Ridge, Destiny Kapule Jan 2023

Melt Inclusion Record Of Submarine Caldera Formation On Axial Seamount, Juan De Fuca Ridge, Destiny Kapule

Master's Theses

This study contributes to understanding magmatic processes and the plumbing system of submarine volcanoes before, during, and after caldera formation with the use of melt inclusions (MIs). Major, trace and volatile geochemistry from both olivine and plagioclase-hosted MIs taken from volcaniclastic deposits around Axial Seamount reveal information about the storage conditions, ascent rates and eruption styles of magmas. Magma crystallizes in the subsurface, capturing MIs, and ascends where some host glasses may interact with seawater during eruption. Oversaturation in volatiles and low vesicularity show quick ascent rates. By analyzing chemical data within a pre-existing stratigraphic context this study can assess …

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Optimizing Soluble Recombinant Expression Of The Aedes Aegypti Early Trypsin Protease, Neomi Millan Jan 2023

Optimizing Soluble Recombinant Expression Of The Aedes Aegypti Early Trypsin Protease, Neomi Millan

Master's Theses

The female Aedes aegypti mosquito is a primary vector for the transmission of blood–borne viral pathogens such as Chikungunya, Zika, Yellow Fever, and Dengue. The female mosquito will become infected with these pathogens through the uptake of a blood meal from an infected host. The midgut digestive enzymes are required to digest the blood meal to obtain necessary nutrients needed for the completion of the gonotrophic cycle. Blood meal digestion is biphasic and digestive enzymes are expressed at different time points after uptake of a blood meal. The focus of this study is on an early phase protease known as …

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Investigating The Misinformation Effect And Physical Activity In An Online Study, Victoria C. Paoloni Jan 2023

Investigating The Misinformation Effect And Physical Activity In An Online Study, Victoria C. Paoloni

Master's Theses

The purpose of this study was to explore the relationship between physical activity and susceptibility to false memory. Among the many benefits of physical activity are brain changes and cognitive improvements. However, few studies have examined the effects of physical activity on false memory, and none have investigated the relationship between physical activity and susceptibility to false memories generated via the misinformation effect. This study was conducted to address that gap and was also among the first to use a misinformation paradigm in an online study. It was hypothesized that greater amounts of weekly physical activity among young adults would …

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Interdependence Of Salt Concentration And Filler Particles On Crystallinity And Mechanical Behavior Of Peo-Litfsi Electrolytes For Lithium-Ion Batteries, Valeria Perez Jan 2023

Interdependence Of Salt Concentration And Filler Particles On Crystallinity And Mechanical Behavior Of Peo-Litfsi Electrolytes For Lithium-Ion Batteries, Valeria Perez

Master's Theses

Developing composite polymer electrolytes is crucial for enhancing the safety, energy density, and performance of lithium-ion batteries. While it is widely accepted that introducing filler particles in PEO-based electrolytes can reduce crystallinity and enhance ionic conductivity, this conventional understanding applies primarily to electrolytes with high lithium salt concentrations. The hypothesis of this investigation is that the crystallinity change induced by LLZTO ceramic particles in PEO-LiTFSI electrolytes is contingent on the EO:Li molar ratio. This hypothesis is interrogated by measuring changes in crystallinity, spherulite morphology, and stiffness of composite polymer electrolytes with two different EO:Li molar ratios using differential scanning calorimetry, …

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Quantifying Bromocarbon Emissions From Seaweed Aquaculture In California, Jessica C. Metter Jan 2023

Quantifying Bromocarbon Emissions From Seaweed Aquaculture In California, Jessica C. Metter

Master's Theses

Feeding ruminant livestock seaweed rich in bromoform (CHBr3) is an emerging strategy to reduce methane emissions from the livestock sector to meet climate targets. Consequently, there is a strong interest in farming bromoform rich seaweeds (e.g., Asparagopsis taxiformis) on a large scale which may impact the atmospheric inventory of bromine and in return induce catalytic ozone destruction. However, to date, only three studies have measured bromoform emission rates from Asparagopsis seaweeds which vary by order of magnitude. To fill this gap, the most comprehensive data set of bromocarbon emissions from A. taxiformis, a leading candidate for enteric methane reduction in …

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Cirrus Microphysical Properties And The Controlling Factors Using A Machine Learning Approach, Derek D. Ngo Jan 2023

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 …

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Detecting The Onion Routing Traffic In Real-Time By Using Reinforcement Learning, Dazhou Liu Jan 2023

Detecting The Onion Routing Traffic In Real-Time By Using Reinforcement Learning, Dazhou Liu

Master's Theses

Anonymous networks have been popularly utilized to protect user anonymity and facilitate network security for a decade. However, such networks have been a platform for adversarial affairs and various network attacks including suspicious traffic generators. As a result, detecting anonymous network traffic is one critical task to defend a network against unpredictable attacks. Many new methods using machine learning and deep learning techniques have been proposed. However, many of them rely heavily on a vast amount of labeled data and have complicated architectures. Since network traffic always fluctuates under different network environments, those techniques may degrade in performance due to …

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Educational Attainment And Employment Status Of Medical Cannabis Users In The Bay Area Of California, Kristi M. Sadler Jan 2023

Educational Attainment And Employment Status Of Medical Cannabis Users In The Bay Area Of California, Kristi M. Sadler

Master's Theses

This research assesses whether participants’ responses align with the literature concerning cannabis use on educational attainment and employment outcomes. Mainly, cannabis use in adolescence is associated with lower educational attainment, and cannabis use in general may lead to poor employment outcomes, as described in the literature. Participants were medical cannabis dispensary patients with a California medical cannabis card residing in 11 counties in or near the San Francisco Bay Area. Data were collected via an internet survey from October to December 2017 via 32 medical cannabis dispensaries. Medical cannabis users reported having bachelor’s degrees at double the current national average. …

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Quantum Mechanics And Dynamical Models For Finite Unlabeled Simple Graphs, Nathan M. Lewis Jan 2023

Quantum Mechanics And Dynamical Models For Finite Unlabeled Simple Graphs, Nathan M. Lewis

Master's Theses

This thesis constructs quantum mechanical theories of finite simple graphs for both labeled and unlabeled graphs.These theories may provide a description for discrete spacetime in a quantum gravity theory. Finite simple graphs and their properties are introduced. The first and second quantization of the standard quantum mechanics of particle systems are reviewed. A quantum mechanical theory of graphs similar to first quantization of standard quantum mechanics is developed via a correspondence of graph edges to particles in particle systems. An algorithm for constructing quantum states of graphs which is independent of graph vertex labeling is developed. It builds antisymmetric graphstates …

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Controllability-Constrained Deep Neural Network Models For Enhanced Control Of Dynamical Systems, Suruchi Sharma Jan 2023

Controllability-Constrained Deep Neural Network Models For Enhanced Control Of Dynamical Systems, Suruchi Sharma

Master's Theses

Control of a dynamical system without the knowledge of dynamics is an important and challenging task. Modern machine learning approaches, such as deep neural networks (DNNs), allow for the estimation of a dynamics model from control inputs and corresponding state observation outputs. Such data-driven models are often utilized for the derivation of model-based controllers. However, in general, there are no guarantees that a model represented by DNNs will be controllable according to the formal control-theoretical meaning of controllability, which is crucial for the design of effective controllers. This often precludes the use of DNN-estimated models in applications, where formal controllability …

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Intrinsic Motivation By The Principles Of Non-Linear Dynamical Systems, Phu C. Nguyen Jan 2023

Intrinsic Motivation By The Principles Of Non-Linear Dynamical Systems, Phu C. Nguyen

Master's Theses

The design of appropriate control rules for the stabilization of dynamical systems can require quite substantial domain knowledge. Modern AI methodologies, such as Reinforcement Learning, are often used to mitigate the need for such knowledge. However, these can be slow and often rely on at least some hand-designed reward structure, and thus human input, to be more effective. Here, we propose an alternative route to construct rewards requiring only minimal domain knowledge, essentially relying on the structure of the dynamical system itself. For this, we use truncated Lyapunov exponents as rewards to calculate the stabilizing controller from samples. Concretely, the …

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The Relationship Between Perceived Person-Job Fit And Affective Commitment And Organizational Citizenship Behavior: The Mediating Role Of Psychological Empowerment, Mei Shimizu Jan 2023

The Relationship Between Perceived Person-Job Fit And Affective Commitment And Organizational Citizenship Behavior: The Mediating Role Of Psychological Empowerment, Mei Shimizu

Master's Theses

Perceived person-Job (P-J) fit has become an important phenomenon to study given its impact on organizational effectiveness. However, there is still limited knowledge about how it impacts job-related attitudes and behaviors. The present study explored the mediating role of psychological empowerment as a potential mediator on the relationship between perceived person-job fit, affective commitment and organizational citizenship behavior (OCB). It was hypothesized that psychological empowerment would act as a mediator of the relationship between perceived P-J fit and affective commitment and OCB. Data were obtained from a sample of 94 employed individuals. Consistent with the hypotheses, the results of the …

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Bosons In Anti De Sitter Spacetime, Thi Khanh Linh Pham Jan 2023

Bosons In Anti De Sitter Spacetime, Thi Khanh Linh Pham

Master's Theses

I am extremely grateful to Dr. Kassahun Betre for his support and guidance throughout my thesis journey. His wisdom, knowledge, and encouragement have been invaluable to me. His willingness to take me on making this project and the collaborative friendship is the highlight of my master’s program. Many thanks to Dr. Curtis Asplund and Dr. Ehsan Khatami for participating on my committee and with regard to their valuable feedback on my thesis draft, ensuring the completion of this work. Finally, I am grateful to my family for their unwavering love and all the support and absolute patience over the years …

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Micro-Scale Laser-Induced Fluorescence Thermometry For Multiphase Flow In Porous Media, Samuel J. Simmons Jan 2023

Micro-Scale Laser-Induced Fluorescence Thermometry For Multiphase Flow In Porous Media, Samuel J. Simmons

Master's Theses

In this thesis the use of Laser-Induced Fluorescence (LIF) thermometry was evaluated as a temperature measurement for multiphase flow in porous media. This optical temperature measurement technique utilizes the temperature-dependent emissive properties of fluorescent dyes to measure temperature. This research evaluates the accuracy, spatial resolution, and temporal resolution of LIF thermometry compared to existing temperature measurements. In this research water-soluble and oil-soluble fluorescent dyes are evaluated in terms of their temperature sensitivity. The ability of these dyes to measure temperature is compared to an Ansys FEA simulation of a fixed temperature gradient. For multiphase flow, the fluorescent dyes were both …

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Effects Of Hypoxia On Anti-Predator Behavior Of English Sole (Parophrys Vetulus) And Speckled Sanddabs (Citharichthys Stigmaeus), Alexandra Beatrix Stella Jan 2023

Effects Of Hypoxia On Anti-Predator Behavior Of English Sole (Parophrys Vetulus) And Speckled Sanddabs (Citharichthys Stigmaeus), Alexandra Beatrix Stella

Master's Theses

Predator detection and successful escape behaviors are critical to the survival of juvenile fish. However, rising temperatures and increased nutrient pollution result in more frequent hypoxic events (i.e., low dissolved oxygen levels), which may impact fish health and survival. This research examined the effects of hypoxia on two flatfish species commonly found in the Elkhorn Slough, an important nursery habitat in central California. English sole and speckled sanddabs were exposed to five DO treatments ranging from 8.0 mg/L DO (normoxic) to 1.0 mg/L DO (severely hypoxic). A startle response trial was used to examine the impact of increasingly hypoxic conditions …

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Advertisement Blindness In Social Media Apps, Nora Szladovics Jan 2023

Advertisement Blindness In Social Media Apps, Nora Szladovics

Master's Theses

Advertisement blindness (ad blindness) is a general term that refers to people’s tendency to automatically and unconsciously ignore advertisements. The phenomenon was originally identified in banner ads, then later in text and native ads on websites. Today, social media is an effective tool for advertisers, yet research investigating users’ interaction habits with social media ads in mobile applications (apps) is unexplored. This study expands the ad blindness concept to mobile social media apps, examining its presence and whether target position has an influence. Further, it investigates the relationship between social media use and ad blindness. Employing a novel approach, the …

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Distribution And Habitat Use By Western Burrowing Owls (Athene Cunicularia Hypugaea) In Alameda, Contra Costa And San Joaquin Counties, California, Jacqueline Taylor Jan 2023

Distribution And Habitat Use By Western Burrowing Owls (Athene Cunicularia Hypugaea) In Alameda, Contra Costa And San Joaquin Counties, California, Jacqueline Taylor

Master's Theses

Grasslands are regularly altered for development, agriculture, and animal farming which leads to habitat destruction and fragmentation and, ultimately, a loss of wildlife species. Though degraded, grassland ecosystems – including native and non-native species - dominate the landscape in the region of the San Francisco Bay Area east of the Bay. The western burrowing owl (Athene cuncularia hypugaea) is a native grassland species of California. The breeding burrowing owl population in the San Francisco Bay Area is resident, but burrowing owls from other parts of the range migrate into the region for the winter. The breeding owl populations in the …

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Behavorial Response Of Diving Northern Elephant Seals (Mirounga Angustirostris) When Exposed To Predator Calls, Daphne M. Shen Jan 2023

Behavorial Response Of Diving Northern Elephant Seals (Mirounga Angustirostris) When Exposed To Predator Calls, Daphne M. Shen

Master's Theses

Understanding how marine mammals respond to and recover from acoustic stressors is crucial if underwater noise increases. The use of an animal-borne biologger that combines a speaker with a motion sensor allows for the collection of whole-dive and fine-scale data over repeated exposures under identical experimental parameters. This study determined whether northern elephant seals (Mirounga angustirostris), a model for deep-diving marine mammals, exhibited a stereotypical behavioral response when exposed to killer whale whistles, an acoustic stressor. I examined changes in dive characteristics, measured duration of altered response, and observed behavior in response to repeated exposures. When exposed to the playback …

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The Mediating Role Of Perceived Organizational Support On The Relationship Between Wellness Programs And Job Satisfaction, Andy Tran Jan 2023

The Mediating Role Of Perceived Organizational Support On The Relationship Between Wellness Programs And Job Satisfaction, Andy Tran

Master's Theses

The purpose of the current study was to examine the mediating role of perceived organizational support (POS) on the relationship between wellness programs (participations and availability) and job satisfaction. A total of 83 employees participated in the study, which utilized online survey distribution. Results showed that POS fully mediated the relationship between both participation and availability of wellness programs and job satisfaction. In other words, employees who participated in a wellness program felt more supported by their organization, leading to greater job satisfaction. In addition, the results suggested that when organizations offered more wellness programs, employees were more likely to …

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The Statue That Started It All: The Aphrodite Of Knidos, Amereece Sterba Jan 2023

The Statue That Started It All: The Aphrodite Of Knidos, Amereece Sterba

Master's Theses

In this thesis, I argue that The Aphrodite of Knidos statue has had a significant impact on the perception of the female nude in art throughout history because of this statue's iconic nature; it lent itself to be easily copied by artists, which has allowed artists to alter the Knidian image for cultural purposes. This thesis explores why this statue became the canon in Antiquity and continued to be replicated in subsequent eras. The first chapter examines how Praxiteles created the formula that would become the canon. By looking at Knidian and other ancient statues that take inspiration from the …

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An Exploration Of The Low Prevalence Effect During Phising Detection, Sherry J. Wei Jan 2023

An Exploration Of The Low Prevalence Effect During Phising Detection, Sherry J. Wei

Master's Theses

Phishing attacks are attempts to obtain individual credentials or other private information through deception, usually in email format. As the Internet becomes increasingly intertwined with everyday lives, such attacks are on the rise, threatening individuals and businesses alike. Existing anti-phishing training measures fail to address possible prevalence effects on detection performance: in tasks where targets appear rarely, participants have heightened miss rates. This low prevalence effect could be present in phishing detection because phishing emails are observed much less frequently than legitimate emails. Emerging research has reported observing heightened miss rates as a function of phishing email rarity. This study …

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How Should I Fall Apart For You? A Critical Autoethnography Exploring Embodied Trauma, Julie R. Terebkov Jan 2023

How Should I Fall Apart For You? A Critical Autoethnography Exploring Embodied Trauma, Julie R. Terebkov

Master's Theses

Defining and naming trauma is a layered and nuanced process but hegemonic medical and media discourses have forced trauma into a system of binary terms and categories. This study begins with an exploration of how hegemonic discourses define trauma and how focusing on embodied trauma disrupts the limiting language presently available. I use Lisa Blackman’s (2008) work on embodiment to explore how our bodies move, take on, and shed trauma as a form of disruption to oppressive language. Blackman’s theory is used to examine my own embodied trauma through a critical autoethnography using prose and narrative I developed in narrative …

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Daily Synoptic-Scale Influences On Weather-Dependent Renewable Energy Supply And Demand In Hypothetical Fully Electrified North American Interconnections, Howard Tang Jan 2023

Daily Synoptic-Scale Influences On Weather-Dependent Renewable Energy Supply And Demand In Hypothetical Fully Electrified North American Interconnections, Howard Tang

Master's Theses

Energy grids around the world are becoming increasingly penetrated by renewable energy sources, resulting in progressively variable energy generation. This study aims to provide a fundamental basis for observing atmospheric conditions in relation to weather-dependent renewable energy supply, where daily synoptic-scale influences are considered in hypothetical fully electrified North American interconnections. Three renewable energy types – 100% wind energy, 100% solar energy, and a 50-50 split of wind and solar energy – are scaled to meet weather-driven energy demand on average in three interconnections, namely the Western Interconnection, the Eastern Interconnection, and a hypothetical combined interconnection composed of the Western, …

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Cloud Phase Distribution At A Global-Scale And The Governing Factors Using Satellite And In-Situ Airborne Observations, Dao Wang Jan 2023

Cloud Phase Distribution At A Global-Scale And The Governing Factors Using Satellite And In-Situ Airborne Observations, Dao Wang

Master's Theses

Cloud thermodynamic phase distributions play a crucial role in accurately representing cloud radiative effects and feedback in a changing climate. The partitioning of cloud thermodynamic phases (ice, liquid, and mixed phase) significantly influences Earth's surface temperature and its ability to mitigate the impact of global warming. Satellite-based cloud phase data are frequently used for the evaluation of global climate models, yet validation of them against in-situ observations is still lacking. This study examines global cloud phase distributions and their determinant factors by validating three satellite-based cloud phase products against an extensive in-situ airborne dataset. CALIPSO exhibits the most similar ice …

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Manifestations Of Communicative Resilience In Experiences Of Serial Arguments Among Adult Children Of Harmful Parental Alcohol Use, Brooklyn Willis Jan 2023

Manifestations Of Communicative Resilience In Experiences Of Serial Arguments Among Adult Children Of Harmful Parental Alcohol Use, Brooklyn Willis

Master's Theses

This thesis investigated the ways in which adult children of harmful parental alcohol use manifest resilience through the lens of the Communication Theory of Resilience (CTR). The CTR presents five communication processes by which resilience, which is the ability to overcome hardship, is demonstrated. Serial arguments, the repeated and unresolved conflicts that occur between romantic partners, were utilized as the context to study resilience. Interviews were conducted to learn about perceptions of serial argument resolvability and the ways and frequencies in which resilience manifested. A pre-interview survey gathered information pertaining to relationship satisfaction and perceptions of resilience. A thematic analysis …

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Reconstructing Auditory Evoked Cortical Response With Fewer Trials, Zoey Y. Zhang Jan 2023

Reconstructing Auditory Evoked Cortical Response With Fewer Trials, Zoey Y. Zhang

Master's Theses

Auditory evoked fields (AEF) paradigm is a common research tool to study human auditory responses by using Magnetoencephalography (MEG), a neuroimaging tool. AEF paradigm requires repetition over many trials to achieve adequate signal-to-noise ratio (SNR), but Autistic children and some other populations cannot tolerate prolonged exam time due to various reasons. To address these challenges, this project uses a novel machine learning algorithm, Champagne with baseline noise learning, to reconstruct AEF data with fewer trials (80%, 60%, 40%, 20%) but produce the same results as using all AEF trials (100%). The results show that this novel machine learning algorithm can …

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Network Anatomy In Logopenic Variant Of Primary Progressive Aphasia, Maria Luisa Mandelli, Diego L. Lorca-Puls, Sladjana Lukic, Maxime Montembeault, Andrea Gajardo-Vidal, Abigail Licata, Aaron Scheffler, Giovanni Battistella, Stephanie M. Grasso, Rian Bogley, Buddhika M. Ratnasiri, Renaud La Joie, Nidhi S. Mundada, Eduardo Europa, Gil Rabinovici, Bruce L. Miller, Jessica De Leon, Maya L. Henry, Zachary Miller, Maria Luisa Gorno-Tempini Jan 2023

Network Anatomy In Logopenic Variant Of Primary Progressive Aphasia, Maria Luisa Mandelli, Diego L. Lorca-Puls, Sladjana Lukic, Maxime Montembeault, Andrea Gajardo-Vidal, Abigail Licata, Aaron Scheffler, Giovanni Battistella, Stephanie M. Grasso, Rian Bogley, Buddhika M. Ratnasiri, Renaud La Joie, Nidhi S. Mundada, Eduardo Europa, Gil Rabinovici, Bruce L. Miller, Jessica De Leon, Maya L. Henry, Zachary Miller, Maria Luisa Gorno-Tempini

Faculty Research, Scholarly, and Creative Activity

The logopenic variant of primary progressive aphasia (lvPPA) is a neurodegenerative syndrome characterized linguistically by gradual loss of repetition and naming skills resulting from left posterior temporal and inferior parietal atrophy. Here, we sought to identify which specific cortical loci are initially targeted by the disease (epicenters) and investigate whether atrophy spreads through predetermined networks. First, we used cross-sectional structural MRI data from individuals with lvPPA to define putative disease epicenters using a surface-based approach paired with an anatomically fine-grained parcellation of the cortical surface (i.e., HCP-MMP1.0 atlas). Second, we combined cross-sectional functional MRI data from healthy controls and longitudinal …

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Learning From The First Citizen Science Association Virtual Conference, Abigail Hils, Skye Kelty, Angel Hjarding, Linda Silka, Alison Cawood Jan 2023

Learning From The First Citizen Science Association Virtual Conference, Abigail Hils, Skye Kelty, Angel Hjarding, Linda Silka, Alison Cawood

Faculty Research, Scholarly, and Creative Activity

The Citizen Science Association (CSA) is a member-driven organization that connects people with interest in community/citizen science (c*science) from a wide range of backgrounds, disciplines, and experiences. In response to the COVID-19 pandemic, the bi-annual CSA conference pivoted away from an in-person format to a virtual format. CitSciVirtual: Local, Global, Connected occurred throughout May 2021 and brought together more than 700 attendees from 36 countries. The conference prioritized interactive experiences for attendees, including 16 collaborative poster sessions featuring 240 virtual posters, 55 workshops to learn and practice new skills, and 7 social events. This paper summarizes the impacts of the …

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Conceptualizing Socio-Emotional Disablism: A Duoethnography Of Crohn’S Disease And Ocd During Covid-19, Kristen L. Cole, Brandi Lawless Jan 2023

Conceptualizing Socio-Emotional Disablism: A Duoethnography Of Crohn’S Disease And Ocd During Covid-19, Kristen L. Cole, Brandi Lawless

Faculty Research, Scholarly, and Creative Activity

We utilize duoethnography to help readers better understand the constitutive nature of disability in the contexts of chronic illness and mental health. By doing so, we articulate the concept of socio-emotional disablism, which expands structural and psycho-emotional theories of disablism to account for the ways socio-material interactions trigger emotion-work—the communicative labor and fatigue that accompanies negotiating our own emotions as well as the emotions of others in disabling contexts—thus limiting relational and ideological engagement with disability. We conclude by discussing what the concept of socio-emotional disablism teaches us about how to build more inclusive social futures through deeper interpersonal engagement …

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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 Jan 2023

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 …

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