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- Description:
- We study the symmetry groups with respect to various equivalence relations defined on subshifts, and more generally, on Cantor systems. Two basic notions of equivalence for dynamical systems are conjugacy and flow equivalence. In this dissertation, we focus on the well-studied automorphism group, which is the group of self-conjugacies, and...
- Keyword:
- Symbolic Dynamics, Automorphism Groups, Topological Dynamics, and Dynamics
- Subject:
- Mathematics
- Creator:
- Yang, Kitty
- 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:15284 and etdadmin_upload_764952
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- Description:
- We present two ways in which measures of information can be used for the design and analysis of neural networks in both the brain and the computer. In the brain, stimulus is often represented as a distributed pattern of activity in a network of neurons. The quality of such population...
- Keyword:
- Neural Coding, Fisher Information, Memory, Neural Networks, Population Coding, and Information Theory
- Subject:
- Artificial intelligence, Neurosciences, and Biophysics
- Creator:
- Kim, Hyun Jin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_764291 and http://dissertations.umi.com/northwestern:15264
-
- Description:
- This dissertation argues that royal nomadism, the custom whereby medieval rulers moved between many castles in a predetermined cycle, fundamentally affected the floorplan, use, and adornment of courtly built environments. This argument is a new departure for the study of castles. Scholars of medieval castles acknowledge that rulers passed through...
- Keyword:
- royal court, castles, itinerancy, portability, and mobility
- Subject:
- Architecture, Archaeology, and Medieval history
- Creator:
- Miller, Scott David
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_756900 and http://dissertations.umi.com/northwestern:15199
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- Description:
- Proper spatiotemporal expression of genes is essential during development. One method of regulation of signaling-responsive genes is at the level of transcription. In this work, I present the adaptation of single molecule fluorescent in situ hybridization for use in Drosophila imaginal disc tissues in order to more precisely quantify transcript...
- Keyword:
- gene expression, transcription, microscopy, bursting, in situ hybridization, and drosophila
- Subject:
- Systematic biology, Biology, and Developmental biology
- Creator:
- Bakker, Rachael
- 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:15416 and etdadmin_upload_780973
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- Description:
- This dissertation documents the centrality of emotion to Americans’ understanding of, participation in, and critiques of the expanding economy in the first half of the nineteenth century. By then, many people viscerally understood that white men’s attempts to procure credit and escape debt could produce fear, anger, guilt, and sadness....
- Keyword:
- gender, United States, emotion, and capitalism
- Subject:
- American history and Gender studies
- Creator:
- McCoy, Laura
- 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:15273 and etdadmin_upload_764546
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- Description:
- Bitcoin is a decentralized payment system proposed in 2008 by Nakamoto, who remains anonymous to date. It offers an effective alternative to fiat money or centralized payment systems with advantages on privacy, anonymity, and low international remittance fees. The transactions in Bitcoin payment system are sent through a peer-to-peer network,...
- Keyword:
- Bitcoin, blockchain, Nakamoto consensus, and security
- Subject:
- Engineering
- Creator:
- Li, Jing
- 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:15372 and etdadmin_upload_779130
-
- Description:
- Supervised learning model is one of the most fundamental machine learning models. It can provide powerful capability of prediction by learning complex patterns hidden in many, sometimes thousands, predictors. It can also be used as a building block of other machine learning tasks, like unsupervised learning and reinforcement learning. Such...
- Keyword:
- Stochastic Microstructures, Fisher Score, Deep Learning, Machine Learning, Concept Drift, and Nonstationarity Analysis
- Subject:
- Materials Science, Statistics, and Computer science
- Creator:
- Zhang, Kungang
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_765218 and http://dissertations.umi.com/northwestern:15297
-
- Description:
- Integrated Computational Materials Engineering (ICME) has emerged as a transformative paradigm that enables the co-design of products, materials, and their manufacturing processes. A gamut of computational tools, such as manufacturing process simulations and multiscale materials analyses, have been developed henceforth by their respective research communities. However, it remains challenging to...
- Subject:
- Mechanical engineering
- Creator:
- Huang, Tianyu
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_781131 and http://dissertations.umi.com/northwestern:15424
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- Description:
- “American Sediments” is a study of Black, white, and Indigenous literatures and complementary visual culture centered on the Mississippi River and the Gulf of Mexico, in texts written after Mark Twain’s Huckleberry Finn—still the archetypal version of the Mississippi, but inevitably unaligned with historical changes, cultural diversities, and economic shifts...
- Keyword:
- Southern Literature, Mississippi River, African American Literature, Native American Literature, and Environmental Literature
- Subject:
- American literature and American studies
- Creator:
- Cerne, Sara
- 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:15314 and etdadmin_upload_768497
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- Description:
- Religious buildings have always faced the threat of fire, but an unusual number of church fires occurred in northern France during the 12th century. Despite this prevalence, a sustained study on medieval church fires -- including how and why they started, how people responded when they occurred, theological reckonings with...
- Keyword:
- Miracle, Disaster, Chronicle, Fire, Church, and Medieval
- Subject:
- Medieval history
- Creator:
- Doll, Kristin Laura
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_744264 and http://dissertations.umi.com/northwestern:15140