Limit your search
Search Constraints
Number of results to display per page
Search Results
-
- Description:
- There has been significant growth in applying composite materials for various engineering applications in the past several decades. Composites allow engineers to tailor material microstructures and constituents for desired structural properties that usually outperform traditional engineering materials such as alloys. However, due to the heterogeneous nature of composites' microstructure, composite...
- Keyword:
- UD composite, woven composite, reduced order modeling, and structural performance prediction
- Subject:
- Engineering
- Creator:
- Gao, Jiaying
- 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:15053 and etdadmin_upload_735144
-
- Description:
- Uterine leiomyoma (LM), the most common tumor of women, causes severe morbidity. LM cells can be separated into three molecularly and functionally distinct cell populations based on the expression pattern of CD34 and CD49b: stem (LSC, CD34+/CD49b+), intermediate (LIC, CD34+/CD49b-), and differentiated cells (LDC, CD34-/CD49b-). Progesterone via progesterone receptor (PR/PGR)...
- Keyword:
- RANK/RANKL pathway, Progesterone signaling, Tumor stem cell, DNA methylation, and Uterine leiomyoma
- Subject:
- Biology
- Creator:
- Liu, Shimeng
- 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:15024 and etdadmin_upload_722143
-
- Description:
- This thesis explores questions in labor economics and applied microeconomics, with particular focus on issues that have implications for public policy. The first essay estimates the Frisch elasticity, sometimes known as the wage elasticity of labor supply in response to anticipated wage changes. Despite its importance in macroeconomic and public...
- Keyword:
- Public Economics, Applied Microeconomics, and Labor Economics
- Subject:
- Economics
- Creator:
- Ong, Pinchuan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_737671 and http://dissertations.umi.com/northwestern:15058
-
- Description:
- Over 6 million adults in the United States have heart failure, a serious public health problem. Differences in the progression of heart failure are in part due to variability in sex, age, and genetic variation background including ancestry. Medical biobanks provide a resource to study this variability as they include...
- Subject:
- Bioinformatics and Genetics
- Creator:
- Pottinger, Tess D
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_742461 and http://dissertations.umi.com/northwestern:15091
-
- Description:
- This dissertation presents research on the game theory of political power, both between and within nations. It first revisits a classical distinction between three different types of power or influence: information, rewards and threats. By presenting a binary-action Principal-Agent problem which incorporates the essential ingredients of all three types of...
- Keyword:
- Game Theory, Mechanism Design, and Political Economy
- Subject:
- Economics, Political science, and Economic theory
- Creator:
- Theisen, Alexander Scott
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_742509 and http://dissertations.umi.com/northwestern:15094
-
- Description:
- The advent of sequencing technologies has generated a large amount of biological and medical data. These data such as genetic sequencing data and lab experimental evidence data can help understand critical biomedical problems. This dissertation makes contribution in three different but related applications in biomedical research. In Chapter 2, we...
- Keyword:
- Normalization, Metagenomics, Graph neural network, Clustering, and Differential abundance test
- Subject:
- Biostatistics, Statistics, and Bioinformatics
- Creator:
- Ma, Yuanjing
- 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:15057 and etdadmin_upload_736532
-
- Description:
- Natural products from fungi have had an immeasurable societal impact as both friends and foes to human health. This includes numerous therapeutics that have had widespread clinical success, mycotoxins that are implicated in fungal pathogenicity, and various agrochemicals. Recent genome sequencing efforts have revealed that fungal genomes contain the capacity...
- Subject:
- Biochemistry
- Creator:
- Robey, Matthew
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_731063 and http://dissertations.umi.com/northwestern:15039
-
- Description:
- This dissertation explores the interaction of debt covenants and firms’ investment behaviors, especially the association between debt covenants and project-level operations. Although previous research has examined the association between contractual terms or gross measures of investment and covenants, there is little known about the ways that covenants influence the choice...
- Subject:
- Accounting
- Creator:
- Rigsby, Christopher
- 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:15083 and etdadmin_upload_741862
-
- Description:
- Interactions between working memory and long term memory systems are still not well understood, as the systems have long been thought to be mostly separate. An interesting intersection of these memory systems is domain-specific expertise, whereby individuals are able to show supra-span memory for information related to the area of...
- Keyword:
- Domain-specific expertise, Long term memory, Working memory, and Expertise
- Subject:
- Psychology and Neurosciences
- Creator:
- Gigler, Kathryn Lee
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_743356 and http://dissertations.umi.com/northwestern:15112
-
- Description:
- Atrial fibrillation (AF) is the most common cardiac arrhythmia, and associated with increased risk for ischemic stroke and mortality. While the risk of stroke has been shown to be reduced with the use of oral anticoagulants like Warfarin, these medications are predictably linked with an increased risk of bleeding, and...
- Keyword:
- Multidimensional imaging, Unicuspid aortic valves, Cardiac MRI, 4D flow MRI, Atrial fibrillation, and Magnetic Resonance Imaging
- Subject:
- Biomedical engineering, Medical imaging, and Engineering
- Creator:
- Ma, Liliana Esther
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_723481 and http://dissertations.umi.com/northwestern:15025
-
- Description:
- In machine learning, classification that assigns a label to a sample is a fundamental problem and serves a building block for various applications of artificial intelligence such as speech recognition, sentimental analysis, and image recognition. During the last years, deep learning rejuvenates artificial intelligence; in particular, it leads to tremendous...
- Keyword:
- Classification, Deep learning, and Machine learning
- Subject:
- Industrial engineering
- Creator:
- Koo, Jaehoon
- 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:15036 and etdadmin_upload_729998
-
- Description:
- This dissertation investigates the relationship between melancholy and the development of American and Iranian literary discourses as responses to the crisis of postwar sovereignty. While situating itself against the complicated backdrop of US/Iran relations since the Second World War, it explores the impact of religion on the formation of political...
- Keyword:
- melancholy, paranoia, guilt, narration, Sovereignty, and politics
- Subject:
- Literature, Psychology, and Political science
- Creator:
- Mohammadi, Marjan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_731789 and http://dissertations.umi.com/northwestern:15044
-
- Description:
- I present the body of work I have pursued over the course of my doctoral study at Northwestern University. First, I conduct an analysis of the measurement abilities of distinctive LISA detector designs, examining the influence of LISA's low-frequency performance on the detection and characterization of massive black hole binaries....
- Keyword:
- Massive Black Holes, Computational Methods, LISA, and Gravitational Waves
- Subject:
- Physics and Computational physics
- Creator:
- Katz, Michael
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_743688 and http://dissertations.umi.com/northwestern:15118
-
- Description:
- Automobile transportation is among the leading sources of greenhouse gas emissions in the United States, and reducing vehicle miles traveled must be part of our climate change mitigation efforts. One recent trend that, if accelerated, could aid in this effort is the increase in bicycling for transportation in large US...
- Keyword:
- bicycling, urban politics, climate change, gentrification, and transportation
- Subject:
- Sociology, Transportation, and Political science
- Creator:
- Burk, Derek Thomas
- 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:15065 and etdadmin_upload_739670
-
- Description:
- Voltage-gated Na channels are expressed in all neurons, and are responsible for the upstroke of the action potential. They are part of a complex of proteins that includes pore-forming α subunits and auxiliary subunits that modify their trafficking, gating, and function. The modulation of Na channels by auxiliary subunits is...
- Keyword:
- sodium channels, FGF14, resurgent current, beta4, and purkinje cells
- Subject:
- Neurosciences
- Creator:
- White, Hayley Virginia
- 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:15070 and etdadmin_upload_740150
-
- Description:
- The complex structure of typical heterogeneous catalysts, where nanoparticles of active material are dispersed onto the surface of a thermally stable support with a high surface area, complicates the understanding of how the support can affect the resulting catalyst structure and properties. Using well-faceted and shape-controlled oxides as supports would...
- Subject:
- Materials Science
- Creator:
- Paull, Ryan
- 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:15035 and etdadmin_upload_729094
-
- Description:
- The effective capture and detoxification of chemical warfare agents (CWAs) is a pressing need in the modern world. Materials are needed for both the destruction of weapon stockpiles and personal protection via fabric coatings or respirators. Attractive candidates for these applications include metal–organic frameworks (MOFs) – highly crystalline materials composed...
- Keyword:
- metal−organic framework, nerve agent, hydrolysis, density functional theory, quantitative structure-activity relationship, and chemical warfare agent
- Subject:
- Chemistry, Chemical engineering, and Computational chemistry
- Creator:
- Mendonca, Matthew Lee
- 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:15063 and etdadmin_upload_739036
-
- Description:
- Throughout a synthetic organic chemist’s career, reaction planning, execution, and analysis will be repeated countless times. The objective of my thesis research was to expedite this workflow to more efficiently access to novel, complex, and biologically useful molecules and synthetic methods. Since the mid 20th century there have been several...
- Keyword:
- High-Throughput Screening, Photocapture, and Retrosynthetic Planning
- Subject:
- Organic chemistry
- Creator:
- Bayly, Alison
- 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:15017 and etdadmin_upload_719809
-
- Description:
- As much as half of the gas mass in our Galaxy's dark matter halo may reside not in the galaxy itself, but in the surrounding volume, the circumgalactic medium (CGM). The vast gas content of the CGM, loosely defined as the volume immediately outside the galaxy but inside the dark...
- Keyword:
- galaxies, circumgalactic medium, simulations, hydrodynamics, mock observations, and spectra
- Subject:
- Astronomy, Astrophysics, and Theoretical physics
- Creator:
- Hafen, Zachary Harris
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_740684 and http://dissertations.umi.com/northwestern:15072
-
- Description:
- Arising from the study of multiple ergodic averages, nilsequences and multiple correlation sequences lie at the crossroads of ergodic theory, combinatorics and number theory. We study these types of sequences along various subsequences of integers, and provide applications to ergodic theory and harmonic analysis. Our first result involves multiple correlation...
- Keyword:
- multiple correlation sequences, multiple recurrence, lacunary sequences, nilsequences, and prime numbers
- Subject:
- Mathematics
- Creator:
- Le, Anh Ngoc
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_731187 and http://dissertations.umi.com/northwestern:15040