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-
- Description:
- Developing materials with comparable structural complexity and programmed hierarchy as those found in nature is a grand challenge in materials science. One way to synthesize soft materials with these complex architectures is to use bottom-up self-assembly of nanoscale building blocks, mimicking how organisms grow tissues with specific functions from peptides,...
- Keyword:
- self-assembly, hybrid material, hydrogels, and 3D printing
- Subject:
- Nanoscience
- Creator:
- Sather, Nicholas Allen
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14465 and etdadmin_upload_627103
-
- Description:
- Bio-inspired materials have a distinct advantage over other materials by virtue of their mimicry of nature’s own products, which have been subjected to the inimitable tests of time and evolutionary pressure. Here we have taken instruction from natural nanostructures that are ubiquitous across the animal kingdom, namely high-density lipoproteins (HDL)....
- Keyword:
- self-assembly, exosomes, nanoparticles, prostate cancer, and high-density lipoproteins
- Subject:
- Biomedical engineering
- Creator:
- Henrich, Stephen E.
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/06/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15705 and etdadmin_upload_842037
-
- Description:
- This dissertation, titled “Empire of Ruins: France in Roman Africa, 1830-1900,” explores the relationship between French colonialism in Algeria and Tunisia and the study of Roman Africa in the nineteenth century. Its central argument is that the French study and use of Roman ruins produced a version of Roman history...
- Keyword:
- Roman Africa, Tunisia, French Empire, France, Algeria, and Romanization
- Subject:
- European history
- Creator:
- Biddlestone, Jessica
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_682359 and http://dissertations.umi.com/northwestern:14784
-
- Description:
- Carbonates constitute Earth's largest carbon (C) reservoir, with most shallow marine deposition occurring on the low-latitude carbonate platforms covering ~800,000 km2. The Yucatán Platform situated between the Western Caribbean and Gulf of Mexico basins, is one of the largest present-day carbonate platforms. As with post-Paleozoic carbonates generally, it is readily...
- Keyword:
- Speleogenesis, Cenotes, Karst, Yucatan, and Chicxulub
- Subject:
- Geochemistry, Hydrologic sciences, and Geology
- Creator:
- Monroy-Rios, Emiliano
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_780882 and http://dissertations.umi.com/northwestern:15407
-
- Description:
- Speech recognition in complex acoustic environments is dependent on myriad bottom-up (i.e., peripheral) and top-down (i.e., central) processes. While bottom-up processes remain fairly stable during childhood, the development of top-down processes persists into young adulthood. The immaturity of top-down processes places younger children at considerable risk for poorer speech recognition...
- Keyword:
- Selective Attention, Speech Recognition, Hearing Loss, and Children
- Subject:
- Cognitive psychology, Audiology, and Psychology
- Creator:
- Ward, Kristina M.
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15217 and etdadmin_upload_761232
-
- Description:
- Optimization via simulation (OvS) is the practice of minimizing or maximizing the expected value of the output of a stochastic simulation model with respect to controllable decision variables. Stochastic simulation is a standard tool within operations research and is often required to model complex systems subject to uncertainty where it...
- Keyword:
- Optimization via Simulation, Optimization, and Stochastic Simulation
- Subject:
- Industrial engineering and Operations research
- Creator:
- Semelhago, Mark
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15377 and etdadmin_upload_779793
-
- Description:
- The increasing demand for green energy has created great demand for high purity lanthanide elements because of their wide range of applications, such as in permanent magnets, batteries, and high-energy capacitors. Solvent extraction, which transfers ions from aqueous solutions to organic liquid phases with the support of extractant molecules, is...
- Keyword:
- Interfacial structure, X-rays, Lanthanide, Solvent Extraction, and Synchrotron
- Subject:
- Physics
- Creator:
- Yoo, Sangjun
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/16/2023
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16334 and etdadmin_upload_942685
-
- Description:
- Proper partitioning of mitochondria and mtDNA is critical for cellular health. Investigations into mitochondrial inheritance, specifically how mtDNA inheritance is coupled with the inheritance mitochondrial compartment, are still in the early stages. We use budding yeast as a model polarized cell system to study a mitochondrial Myo2-adaptor protein, Mmr1, in...
- Keyword:
- mitochondria, mitochondrial tethering, mtDNA, Mmr1, and mitochondrial inheritance
- Subject:
- Molecular biology, Biochemistry, and Cellular biology
- Creator:
- Chen, WeiTing
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_763646 and http://dissertations.umi.com/northwestern:15245
-
- Description:
- This dissertation investigates the use of organic and semiconductor nanomaterials as chromophores in solar fuels production and energy transfer-mediated [2+2] cycloadditions. A series of novel N-annulated perylene chromophore amphiphiles was synthesized via a modular synthesis. These perylene amphiphiles were found to self-assemble in aqueous solution, forming extended ribbon-like nanostructures that...
- Keyword:
- cycloaddition, Nanomaterials, self-assembly, Quantum dots, Solar fuels, and photocatalysis
- Subject:
- Chemistry
- Creator:
- Nagasing, Benjamin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_787179 and http://dissertations.umi.com/northwestern:15434
-
- Description:
- The study and design of machines that are able to analyze the auditory scene and organize sound into parts that are perceptually meaningful to humans is referred to as machine hearing. Such machines are expected to distinguish between different sound categories (e.g., speech, music, background noise), focus on a sound...
- Keyword:
- Audio Source Separation, Common Fate, Machine Hearing, Audio Signal Processing, Audio Classification, and Audio Representation
- Subject:
- Electrical engineering and Computer science
- Creator:
- Pishdadian, Fatemeh
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_780859 and http://dissertations.umi.com/northwestern:15404
-
- Description:
- Imagine sitting in a room listening to some friends play a song. Perhaps one friend is playing guitar, another playing bass, and a third is playing drums. The musical content in this scene is extraordinarily complex, yet it contains many types of structure that is easy for us to comprehend....
- Keyword:
- Source Separation, Musical Scene Analysis, Automatic Music Transcription, and Music Information Retrieval
- Subject:
- Artificial intelligence, Music, and Computer science
- Creator:
- Manilow, Ethan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_921115 and http://dissertations.umi.com/northwestern:16181
-
- Description:
- In the late 2000’s, scientific studies in cultural heritage saw a great advancement in macro X-ray fluorescence (XRF) imaging of paintings. These images are used to generate elemental distribution maps, which aid in identifying chemical elements and paint pig- ments as well as their locations throughout the layers of the...
- Keyword:
- machine learning, x-ray fluorescence, and image processing
- Subject:
- Artificial intelligence, Materials Science, and Computer science
- Creator:
- Chopp, Henry Hayashi
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_998414 and http://dissertations.umi.com/northwestern:16642
-
- Description:
- We consider data-driven approaches for universal texture modeling via generative adversarial networks and inversion methods. We investigate the properties of the learned representation spaces and demonstrate that a strong link between texture analysis and synthesis is the key to successful texture modeling. First, we visit the problem of texture synthesis...
- Subject:
- Electrical engineering
- Creator:
- Lin, Jue
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_956970 and http://dissertations.umi.com/northwestern:16393
-
- Description:
- Location-aware technologies, such as personal navigation applications, location-based AR games, and artificial intelligence systems that learn from data about places, increasingly mediate our understanding of and interactions with the world. However, a number of risks associated with location-aware technologies have emerged, jeopardizing the welfare of its users. This dissertation seeks...
- Keyword:
- Location-aware technologies, Geographic inequalities, and Human-centered AI
- Subject:
- Geographic information science and geodesy and Computer science
- Creator:
- Lin, Yilun
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15521 and etdadmin_upload_814332
-
- Description:
- Recent advancements in processing and manufacturing techniques have spurred an exponential increase in use of polymer nanocomposites in a variety of applications. A key challenge in using these nanocomposites effectively is the dispersion of nanoparticles in the polymer matrix. Matrix-free assemblies of polymer grafted nanoparticles, called hairy nanoparticles assemblies(aHNPs) have...
- Keyword:
- Scaling law, Coarse-grained molecular dynamics, Hairy nanoparticle assemblies , Energy Renormalization, Mechanical property optimization, and Potential of mean force
- Subject:
- Mechanics, Mechanical engineering, and Nanotechnology
- Creator:
- Hansoge, Nitin Krishnamurthy
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15477 and etdadmin_upload_797349
-
- Description:
- Intelligence in humans is largely characterized by the ability to encode information into compressible representations to facilitate efficient communication for collaboration and learning. The goal of this thesis is to enable robots to both learn and act on compressible representations in real-time. I show how active exploration with respect to...
- Keyword:
- Information Communication, Human-Robot Interaction, and Robot Learning
- Subject:
- Robotics
- Creator:
- Prabhakar, Ahalya
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15341 and etdadmin_upload_772609
-
- Description:
- While optimization has received much attention in the machine learning community, most of them consider unconstrained supervised learning models such as neural networks and support vector machine. In this dissertation, we introduce a new class of optimization problems called scale invariant problems that include interesting unsupervised learning models such as...
- Keyword:
- Power Iteration, PCA, Optimization, Machine Learning, Scale Invariance, and KL-NMF
- Subject:
- Applied mathematics and Operations research
- Creator:
- Kim, Cheolmin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15139 and etdadmin_upload_744178
-
- Description:
- This thesis focuses on applications of recurrent neural networks (RNNs) for three aspects of sequential classification. In the first chapter, a novel method to generate synthetic minority data generation to improve imbalanced classification is discussed. Generative Adversarial Networks (GANs) have been used in many different applications to generate realistic synthetic...
- Keyword:
- Explainability, Recurrent Neural Networks, and Machine Learning
- Subject:
- Applied mathematics
- Creator:
- Ger, Stephanie Kwang-Yu
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15394 and etdadmin_upload_780385
-
- Description:
- Previous studies have documented a systematic discrepancy between probabilistic seismic hazard maps and historical records of shaking (Stein et al., 2015; Brooks et al., 2016, 2017, 2018, 2019; Salditch et al., 2020; Salditch, 2021). In almost every case, shaking predicted by the hazard map is higher than that historically observed....
- Subject:
- Geophysics
- Creator:
- Gallahue, Molly Margaret
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_979215 and http://dissertations.umi.com/northwestern:16479
-
- Description:
- Pragmatic language, or the use of language in social contexts, is critical to developing meaningful social relationships and is a significant contributor to mental health. Autism spectrum disorder (ASD), fragile X syndrome (FXS) and Down syndrome (DS) are all genetically based neurodevelopmental disabilities characterized by deficits in pragmatic language, although...
- Keyword:
- Development, Down syndrome, Language, Autism Spectrum Disorder, and Fragile X Syndrome
- Subject:
- Clinical psychology
- Creator:
- Lee, Michelle
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_560496 and http://dissertations.umi.com/northwestern:14026
-
- Description:
- Segregation of polydisperse granular materials remains to be a challenging problem in many industrial processes. However, most studies have focused either on bidisperse (two different particle size species) materials, which are not representative of most real mixtures, or on polydisperse materials in an idealized simple geometry. Additionally, most studies have...
- Keyword:
- Segregation, Polydisperse, and Particle flow
- Subject:
- Chemical engineering and Engineering
- Creator:
- Deng, Zhekai
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_687531 and http://dissertations.umi.com/northwestern:14851
-
- Description:
- One of the central challenges in solid-state chemistry is synthetic control over structure. Owing to limited reactivity of Pb with transition metals at ambient pressure and high temperature as well as the variety of properties that emerge from the few known binary transition-metal–Pb compounds, this research focuses on accessing and...
- Subject:
- Chemistry and Materials Science
- Creator:
- Tamerius, Alexandra
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_845128 and http://dissertations.umi.com/northwestern:15755
-
- Description:
- This thesis is composed of two major parts. The first major part includes the first two chapters. In Chapter 1, we go over the history and background of spin glass theory and introduce the Sherrington-Kirkpatrick (SK) model and the Ghatak-Sherrington (GS) model. In Chapter 2, we introduce the Thouless-Anderson-Palmer (TAP)...
- Keyword:
- Probability and Spin Glass
- Subject:
- Mathematics
- Creator:
- Chen, Xi
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16090 and etdadmin_upload_903175
-
- Description:
- Two major areas of research in the field of manufacturing are miniaturization and 3D printing. The trend towards miniaturization stems from the desire and need for additional functionality and improved performance for products with ever-smaller footprints. Miniaturization opens manufacturing to new applications such as tissue engineering and surface texturing. Meanwhile,...
- Keyword:
- micro-manufacturing, micro-additive manufacturing, near-field electrospinning, residual charges, and electrohydrodynamics
- Subject:
- Mechanical engineering
- Creator:
- Martinez Prieto, Nicolas
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15128 and etdadmin_upload_743961
-
- Description:
- In the first chapter I introduce the ideas that link selling information to surplus extraction. In my environment the seller may be uncertain about how much the buyer both has already learned before contracting with the seller (belief types) and is able to learn after contracting with the seller (information...
- Keyword:
- Screening, Selling Information, Mechanism Design, and Full Surplus Extraction
- Subject:
- Economics
- Creator:
- Mishara-Blomberger, Jonas
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_662459 and http://dissertations.umi.com/northwestern:14641
-
- Description:
- Over the last decade, a rising trend of corporations publicly acting on social and political issues has come to the fore. The issues and methods have both varied widely—from immigration to abortion, and from advertisements to boycotts. This introduces an interesting puzzle in the realm of strategy research: Where does...
- Keyword:
- corporate sociopolitical involvement, social movements, corporate social responsibility, nonmarket strategy, business strategy, and corporate political activity
- Subject:
- Management and Sociology
- Creator:
- McKean, Anna Eileen
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/16/2023
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16374 and etdadmin_upload_947265
-
- Description:
- Heterogeneous catalysts based on metal oxides are of significant interest for many industrial chemical reactions. These catalysts, however, often suffer from ill-defined structures that preclude better understanding of the surface phenomena. Thus, structurally well-defined catalysts have received growing attention by making it feasible to understand the kinetics and reaction mechanisms....
- Subject:
- Chemical engineering
- Creator:
- Ahn, Sol
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14583 and etdadmin_upload_659552
-
- Description:
- Prenatal alcohol exposure is a global health concern. Despite guidelines advising against it, many women continue to drink throughout their pregnancies. Exposure to alcohol can have lifelong medical, social, emotional, and intellectual consequences on a developing fetus. Women in Uruguay have demonstrated consistently high self-reported alcohol consumption during pregnancy, but...
- Keyword:
- Maternal Alcohol Use, Infant Development, South America, and FASD
- Subject:
- Clinical psychology
- Creator:
- Hayes, Nicole Alexandra
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_646129 and http://dissertations.umi.com/northwestern:14548
-
- Description:
- Computer systems supported by photonic interconnects and photonic memory devices can reach performance and energy efficiency levels unattainable through purely electronic means across scales, from processor chips to the data center. However, the promised benefits cannot be realized through a simple replacement process; to reach their full potential, several aspects...
- Keyword:
- Emerging optical and photonic technologies, Data center network, Cache hierarchy, Nanophotonics, Network-on-Chip, and Optical interconnects
- Subject:
- Computer engineering
- Creator:
- Han, Haiyang
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16052 and etdadmin_upload_901541
-
- Description:
- This dissertation includes the score and companion essay to the musical work, Untitled (March). In the composition, I endeavor to create a listening situation offering a mutually negotiated environment of quietude that challenges a listener's preconceptions of intentionality and perception by blurring the boundaries between instrumental performance, field recordings, and the...
- Subject:
- Musical composition
- Creator:
- Maxbauer, Andrew
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_987071 and http://dissertations.umi.com/northwestern:16612
-
- Description:
- Social factors are a major contributor to deaths in the US. The literature suggests that socioeconomic status and other social and environmental factors influence an individual’s mortality. These factors encompass six domains that comprise factors such as poverty, unemployment, poor access to healthy food, limited access to health care, limited...
- Keyword:
- Social Determinants of Health, Hospitalization, Mortality, Health Insurance, and Emergency Department
- Subject:
- Health sciences, Health care management, and Public health
- Creator:
- Wang, Andrew C
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15384 and etdadmin_upload_780174
-
- Description:
- The three studies in this project investigate a selected number of youth protective factors and caregiver parenting skills with reducing the risk of justice involvement for youth involved in the child welfare system without a prior history of justice involvement. All three studies used child welfare administrative data, and the...
- Keyword:
- adolescents, trauma, child welfare, protective factors, juvenile justice, and minorities
- Subject:
- Clinical psychology
- Creator:
- Summersett, Faith
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14382 and etdadmin_upload_612771
-
- Description:
- Built from non-covalent interactions, supramolecular biomaterials are highly dynamic and tunable, and recent work has shown that they are uniquely capable of mimicking functional biological structures. In this work, supramolecular biomaterials built from self-assembling peptide amphiphiles (PA) were investigated with the goal of precisely tuning their cohesive interactions to optimize...
- Keyword:
- Bone Regeneration, Biomaterials, Self-Assembly, and Supramolecular Biomaterials
- Subject:
- Bioengineering
- Creator:
- Chen, Charlotte Hui
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14828 and etdadmin_upload_686118
-
- Description:
- Due to their widespread applicability, graphs and networks appear in various contexts. The increasing scale of graphs encountered in the real-world requires the developmentof efficient algorithms that run reasonably fast and produce close to optimal solutions. The main focus of this thesis is the development of fast graph algorithms for...
- Keyword:
- Parallel Algorithms, Dynamic Algorithms, Algorithms, Approximation Algorithms, Combinatorial Optimization, and Graph Theory
- Subject:
- Computer science
- Creator:
- Sukprasert, Pattara
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_984409 and http://dissertations.umi.com/northwestern:16533
-
- Description:
- Clientelism has been largely defined as an electoral strategy in which politicians distribute resources to voters to gather their support. This study proposes a new framework to understand clientelism by inverting the perspective of this practice, focusing on voters rather than politicians. This study proposes that clientelism should be understood...
- Keyword:
- POLITICAL PARTIES, BRAZIL, ETHNOGRAPHY, and CLIENTELISM
- Subject:
- Political science
- Creator:
- Borges Martins da silva, Mariana
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_677195 and http://dissertations.umi.com/northwestern:14755
-
- Description:
- If life exists on Mars, it likely resides in a deep subsurface environment. The Martian rocky subsurface is a primary target for the search for extraterrestrial life because it offers a stable habitat for microbial life. On Earth, the continental subsurface is a key astrobiological analog for understanding what properties...
- Keyword:
- Geochemistry, Deep Subsurface, Continental Subsurface, Biofilms, Geobiology, and Astrobiology
- Subject:
- Microbiology, Geobiology, and Geochemistry
- Creator:
- Casar, Caitlin Page
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_808363 and http://dissertations.umi.com/northwestern:15508
-
- Description:
- Ataxic dysarthria is a disorder affecting the naturalness of speech due to damage to the cerebellum, a neural structure critical for the timing, scaling, and sequencing of speech movements (Ackermann, Vogel, Petersen, & Poremba, 1992; Diener & Dichgans, 1992; Duffy, 2013; Rampello, Rampello, Patti, & Zappia, 2016). In healthy individuals,...
- Keyword:
- Ataxia, Auditory Feedback, Pitch-shift, Dysarthria, Prosody, and Pitch
- Subject:
- Speech therapy, Linguistics, and Acoustics
- Creator:
- Hilger, Allison Ilice
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15086 and etdadmin_upload_742085
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- Description:
- Social media and online forums provide spaces where people can gather beyond restrictions of geographic proximity. For some individuals with mental illness, these spaces are vital; providing outlets and communities where a multitude of experiences are accepted and understood, rather than judged against normative, often ableist standards. For nearly three...
- Keyword:
- Social Computing, Human-Computer Interaction, Digital Ethnography, Mental Illness, Eating Disorders, and Anti-Oppressive Care
- Subject:
- Information science, Computer science, and Communication
- Creator:
- Feuston, Jessica
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_768803 and http://dissertations.umi.com/northwestern:15315
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- Description:
- Maneuvering your limbs requires both accurate commands for how to move, and accurate feedback of their true movements. Conventional prosthetic arms currently lack this sense of proprioceptive feedback, which can make daily tasks difficult without close visual monitoring. Although studies have successfully provided artificial proprioceptive feedback to improve control, this...
- Keyword:
- motor adaptation, sensory feedback, and myoelectric prosthesis
- Subject:
- Biomedical engineering and Neurosciences
- Creator:
- Earley, Eric Joseph
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/28/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_713001 and http://dissertations.umi.com/northwestern:14963
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- Description:
- Newborns are particularly susceptible to severe forms of herpes simplex virus type I (HSV-1) infection including encephalitis and multisystemic disseminated disease. The underlying age-dependent differences in the immune response that explain this increased susceptibility relative to the adult population remain largely understudied. Evidence from animal studies and genetic studies in...
- Keyword:
- Interferon Response, HSV, Neonatal Immunity, and Encephalitis
- Subject:
- Virology and Immunology
- Creator:
- Giraldo Perez, Daniel
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15674 and etdadmin_upload_838287
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- Description:
- Individuals following a stroke suffer from a host of movement impairments that affect the upper extremity. Hand use is often significantly compromised, especially in individuals with more severe impairments, which makes it difficult for individuals to participate in activities of daily living. One of the major goals of rehabilitation is...
- Keyword:
- Upper Extremity, Stroke, Neuroimaging, Hand, Rehabilitation, and EEG
- Subject:
- Neurosciences
- Creator:
- Wilkins, Kevin Bryant
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14743 and etdadmin_upload_675263
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- Description:
- Machine learning-based techniques have shown great promises in perception, prediction, planning, and general decision-making for improving task performance of autonomous driving. Connectivity technology has also presented great potentials in improving the safety and efficiency of transportation systems by providing information beyond the perception and prediction capabilities of individual vehicles. However,...
- Keyword:
- Connected and Autonomous Vehicle, Safety, and Security
- Subject:
- Robotics, Computer engineering, and Transportation
- Creator:
- Liu, Xiangguo
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_986836 and http://dissertations.umi.com/northwestern:16608
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- Description:
- Laser powder-blown directed energy deposition (DED) is an additive manufacturing process that utilizes a co-axial nozzle and laser to melt metal powders onto a substrate in a line-by-line fashion. This coupling gives rise to interactions between the laser, powder, and melt pool. To address fundamental process understanding, physical models were...
- Keyword:
- Additive Manufacturing
- Subject:
- Theoretical mathematics
- Creator:
- Webster, Samantha
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_926973 and http://dissertations.umi.com/northwestern:16216
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- Description:
- This dissertation has two main aims. The first is to show that relying on the testimony of others is not as “epistemically special” as many epistemologists have made it out to be. More specifically, I argue that relying on someone’s testimony neither provides us with a non-evidential, epistemic reason to...
- Subject:
- Philosophy and Epistemology
- Creator:
- Leonard, Nick
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14632 and etdadmin_upload_662248
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- Description:
- Objective: To evaluate patient-reported experiences of telehealth and disparities in access, use, and satisfaction with telehealth visits during the COVID-19 pandemic (aim 1), to evaluate prevalence of portal use pre-, peri-, and post-pandemic, among the C3 cohort, and investigate any disparities in use by sociodemographic factors (aim 2), and to...
- Subject:
- Behavioral sciences, Clinical psychology, and Public health
- Creator:
- Yoon, Esther S
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16685 and etdadmin_upload_1008762
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- Description:
- Our sense of smell, or olfaction, is one of our most evolutionarily ancient senses. In vertebrates, olfaction plays a crucial role in many functions, such as detecting and evaluating food, avoiding predators, regulating appetite, spatial navigation, and selecting mating partners. In addition, the olfactory system is highly dynamic and exhibits...
- Keyword:
- Neuroimaging, Perceptual Coding, Olfaction, Encoding Models, and Orbitofrontal Cortex
- Subject:
- Neurosciences
- Creator:
- Sagar, Vivek
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16580 and etdadmin_upload_986169
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- Description:
- This dissertation addresses the property of amenability of discrete groups and their actions. In Chapter 2, following the introduction, all necessary definitions are given to introduce amenable groups, elementary amenable groups, random walks, topological full groups, Thompson's group $F$ and to show connections between them. The chapter also briefly covers...
- Keyword:
- amenability, group-theory, and amenable-groups
- Subject:
- Mathematics
- Creator:
- Chornyi, Maksym
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_659646 and http://dissertations.umi.com/northwestern:14584
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- Description:
- Findings in both humans and animal models have associated the hippocampal theta oscillation with hippocampal memory function. In animal models, previous research supports that the theta oscillation contributes to memory via phase-dependent changes in hippocampal network connectivity, wherein memory encoding versus retrieval are optimized at different phases of the theta...
- Keyword:
- theta, intracranial, phase, TMS, oscillation, and hippocampus
- Subject:
- Neurosciences
- Creator:
- Lurie, Sarah M
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_956997 and http://dissertations.umi.com/northwestern:16394
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- Description:
- This essay investigates the question under which conditions ASMR is suitable for the concert space. What can be done to ensure that those sensitive to ASMR experience the desired effect? The text compares the sounds used to induce the physiological response called ASMR to those of “Musique Concrète (Instrumentale)” by...
- Keyword:
- ASMR and music
- Subject:
- Musical composition
- Creator:
- Roelofsen, Ruud
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16524 and etdadmin_upload_984052
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- Description:
- Materials science has been central to human advancement since time immemorial. There has always been curiosity around studying the processes required to extract materials, examine their structure, and ultimately tailor their properties to meet human needs. Over the last few centuries, the ability to tailor material properties was driven by...
- Keyword:
- Gaussian Process, Mixed Variable Machine Learning, Data Centric Design, Multicriteria Optimization, and Microstructure
- Subject:
- Materials Science, Statistics, and Design
- Creator:
- Iyer, Akshay
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/02/2022
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_851800 and http://dissertations.umi.com/northwestern:15801