Browsing Dissertations and Theses by Title
Now showing items 4129-4148 of 16476
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Dissociable Cost and Benefit Encoding of Future Rewards by Mesolimbic Dopamine
(University of Washington Graduate School, 2011-08-01)Dopamine is a neural substrate implicated in the complex computation of weighing the costs and benefits of future actions. Midbrain dopamine neurons encode fundamental economic parameters pertaining to predicted rewards ... -
Distal and Historical Constraints on Leadership: Loneliness and Leniency from the Leader's Perspective
Contextual factors – environmental stimuli external to individuals – are historically understudied loci of leadership. This dissertation comprises two chapters exploring characteristics of distal and historical context ... -
Distinct Effector B cell and Autoantibody Responses Contribute to Long COVID Pathogenesis
The disease COVID-19 due to the coronavirus SARS-CoV-2 has resulted in over 770 million confirmed cases worldwide with 1% death rate as in August 2023. 20%–31% of symptomatic patients require hospitalization, with intensive ... -
Distinct effects of the two major types of UV-induced DNA lesions on DNA damage responses
The most prevalent human carcinogen is sunlight-associated UV, a physiologic dose of which generates thousands of DNA lesions per cell, mostly of two types: cyclobutane pyrimidine dimers (CPDs) and 6-4 photoproducts (6-4PPs). ... -
Distinct Mechanisms Underlie Regeneration of Mechanosensory Hair Cells in Zebrafish
The mechanosensory hair cells of the inner ear mediate hearing and balance. Widespread loss of these hair cells results in severe hearing and balance deficits. Humans and other mammals are unable to regrow lost hair cells, ... -
Distinct Neural Networks Underpin Distractor Sensitivity and Task Accuracy in a Complex Working Memory Task
It is unclear what role distractor sensitivity plays in performance on complex working memory tasks. Although several contemporary studies suggest that individual differences in working memory performance are driven by the ... -
Distress in parents of children with advanced cancer enrolled in the PediQUEST Study
(2012-09-13)Purpose: Psychological distress (PD) in a parent may have an effect on their children and other members of their family. We sought to describe the prevalence and predictors of PD among parents of children with advanced ... -
Distress Tolerance as a Moderator of Mindfulness-based Relapse Prevention Effects on Alcohol and Other Drug Use Outcomes
(2013-02-25)Distress tolerance refers to the degree to which an individual is able to withstand negative psychological and/or physical states. Empirical literature has indicated that lower distress tolerance is associated with a number ... -
Distributed agent management in a parallel simulation and analysis environment
This thesis presents the design, implementation, and evaluation of adding features of automatic distributed injection, diffusion, merger, and termination to reactive agents in a parallel simulation and analysis environment. ... -
Distributed Channel Assignment Using a Modified ALOHA Protocol
In this thesis, we propose a distributed channel assignment algorithm for multi-agent robotic systems using infrared LEDs for local positioning and communication. Specifically, we look at a modification of the ALOHA Medium ... -
Distributed Control of Large-Scale Networks: From Theory to Applications
Networked systems analysis has been on the forefront of interdisciplinary research over the past few years with applications spanning from a wide variety of research literature, ranging across control systems, learning, ... -
Distributed Diverging Topic Models: A Novel Algorithm for Large Scale Topic Modeling in Spark
In their 2001 work Latent Dirichlet Allocation, Blei, Ng, and Jordan proposed the generative model of the same name that has since become the basis for most research in the field of topic modeling. The model overcame many ... -
Distributed Interaction Design
Creating user interfaces that are natural, guessable, learnable, memorable and accessible is a persistent challenge. Involving end users in the design process is a well-established approach to address these challenges, but ... -
Distributed Method to Optimal Profile Descent
(2013-07-25)Current ground automation tools for Optimal Profile Descent (OPD) procedures utilize path stretching and speed profile change to maintain proper merging and spacing requirements at high traffic terminal area. However, low ... -
Distributed Multiple Access for OFDMA Femtocells
Demand for data services in cellular networks is growing exponentially, due to the proliferation of high-end, multimedia-enabled mobile devices. To meet this challenge, cellular operators are moving toward a heterogeneous ... -
Distributed Protocols, Nonlinear State-Dependent Networks, and Human-Swarm Interactions
This dissertation aims to explore intuitive control mechanisms for distributed protocols over networks with a goal of understanding state-dependent networks and attaining high-level human-swarm interactions. Two canonical ... -
Distributed Task Scheduling on Cloud Infrastructure for Bioinformatics Workflows and Analysis
The datasets analyzed in bioinformatics are large and numerous, requiring complex analysis. The size and complexity of bioinformatics data often makes it impractical for researchers to run analytical workflows on their ... -
Distribution and diversity of alpine lichens: biotic and abiotic factors influencing alpine lichen communities in the northeast Olympic and North Cascade Mountains
(1998)Alpine lichens from six specific sites in the northeastern Olympic and North Cascade Mountains were studied. Sites included Elk Mountain, Deer Park, and Buckhorn cirque from the Olympic Mountains; and Skyline Divide, Slate ... -
The distribution and timing of bearded seal (<italic>Erignathus barbatus</italic>) vocalizations reflect changing environmental conditions in the Bering, Chukchi, and Beaufort Seas
The Arctic is experiencing dramatic shifts in climate that have led to changes in sea ice distribution, extent, and timing that pose adaptability challenges for Arctic species. Ice obligate species, such as the bearded ... -
Distribution of Charity Care, Commercial, & Medicaid Payer Mix Following Hospital Mergers
Hospital mergers are becoming increasingly common across the current U.S healthcare market. Advocates in support of hospital mergers argue that they promote continuity of care and help to contain healthcare costs. In ...