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- Description:
- This dissertation proposes an oracle efficient estimator in the context of a sparse linear model. Chapter 1 introduces the penalty and the estimator that optimizes a penalized least squares objective. Unlike existing methods, the penalty is differentiable – once, and hence the estimator does not engage in model selection. This...
- Keyword:
- Lasso, Econometrics, Sparsity, Penalized estimation, and Bootstrap
- Subject:
- Statistics and Economics
- Creator:
- Gitlin, Sergey
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_682504 and http://dissertations.umi.com/northwestern:14786
-
- Description:
- Rationally assembled nanostructures exhibit distinct physical and chemical properties beyond their individual units. The development of nanofabrication tools enables precise structural defining of nanomaterials scalable to large areas. This dissertation focuses on plasmonic nanoparticle arrays that show unique diffractive coupling with lattice spacings engineered close to the wavelength of light....
- Keyword:
- Light-matter interactions, Metal nanoparticles, Plasmonic superlattices, Upconverting nanolasing, Nanoscale lasers, and Stretchable photonics
- Subject:
- Optics, Nanoscience, and Materials Science
- Creator:
- Wang, Danqing
- 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:14605 and etdadmin_upload_661446
-
- Description:
- In this thesis, we study pushforwards of canonical and log-pluricanonical bundles on projective log canonical pairs over the complex numbers. We partially answer a Fujita-type conjecture proposed by Popa and Schnell in the log canonical setting. Built on Kawamata’s result for morphisms that are smooth outside a simple normal crossing...
- Keyword:
- Global Generation, Fujita Conjecture, (Pluri)-canonical bundle, Weak Positivity, Iitaka Conjecture, and Vanishing Theorems
- Subject:
- Mathematics
- Creator:
- Dutta, Yajnaseni
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_666347 and http://dissertations.umi.com/northwestern:14693
-
- Description:
- Cells are complex, autonomous machines that integrate many environmental cues to execute a desired response. Though this property makes cells versatile, it presents significant design challenges when, to treat diseases, we must alter cellular responses. To understand changes to the complex regulatory pathways that cause diseases, studies often investigate the...
- Keyword:
- systems biology, machine learning, dynamics, regulation, and differential gene expression
- Subject:
- Bioinformatics and Biology
- Creator:
- Finkle, Justin
- 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:14568 and etdadmin_upload_656753
-
- Description:
- This dissertation analyses the ways in which football, known as soccer in the United States, has historically served as a diasporic space for the articulation of black politics in the second half of the twentieth century. While modern sport is characterized as an apolitical cultural practice, I am interested in...
- Keyword:
- diaspora, football, coloniality, race, and soccer
- Subject:
- Black studies
- Creator:
- Scott, Jermaine
- 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:14635 and etdadmin_upload_662291
-
- Description:
- Polyolefins are the most versatile and widely used polymers worldwide. Depending on the polymer microstructure, polyolefins can exhibit a wide range of useful and tailored properties and applications. Metal-catalyzed coordinative olefin polymerization plays a center role in advancing polyolefin synthesis. This dissertation explores two strategies to modulate the polymer microstructures...
- Keyword:
- scandium, olefin polymerization, zirconium, bimetallic effect, and polar monomer
- Subject:
- Inorganic chemistry and Chemistry
- Creator:
- Chen, Jiazhen
- 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:14719 and etdadmin_upload_669232
-
- Description:
- Over a decade has passed since Hurricane Katrina impacted the Gulf Coast. The city of New Orleans, was one of the more severely damaged areas in the region, experiencing 80% damage. This dissertation analyzes the rebuilding of New Orleans and it questions the role that colonial legacies play in that...
- Keyword:
- Disaster, Anthropocene, Settler Colonialism, Time Space, Decolonialization, and Hurricane Katrina
- Subject:
- African American studies, Native American studies, and Ethnic studies
- Creator:
- Shepard, Cassandra MIchelle Winand
- 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:14714 and etdadmin_upload_668656
-
- Description:
- Spherical Nucleic Acids (SNAs) are unique class of nanomaterial characterized by a dense nucleic acid shell conjugated to a nanoparticle core. This radial orientation of oligonucleotides and architecture distinguishes SNAs from the components from which they are comprised. Specifically, unique chemical and biological properties emerge that are not observed with...
- Keyword:
- Spherical Nucleic Acid, Nanoparticle, Immune system, Toll-like receptors, and Biodistribution
- Subject:
- Nanotechnology, Chemistry, and Immunology
- Creator:
- Ferrer, Jennifer R
- 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:14715 and etdadmin_upload_668701
-
- Description:
- Two unique structures make up the nucleus of our Galaxy on different scale sizes. On a broad scale of a few hundreds of parsecs, there is the well-known central molecular zone which comprises a substantial component of the gas in the Galaxy. The other, known as the mini-spiral, is streamers...
- Subject:
- Astronomy, Astrophysics, and Physics
- Creator:
- Royster, Marc Justin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_626068 and http://dissertations.umi.com/northwestern:14447
-
- Description:
- This thesis describes the relationships between nanoscale structure and particle transport in two systems: i) the transport and conversion of excitons in colloidal quantum dot (QD) assemblies and ii) the transport of carriers in flashing electron ratchets. One major crux in the creation of efficient photocatalytic systems is the low...
- Subject:
- Physical chemistry
- Creator:
- Kodaimati, Mohamad S
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_678888 and http://dissertations.umi.com/northwestern:14764