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-
- Description:
- Design problems are highly ill-structured, having “ambiguous specifications of goals, no determined solution path, and the need to integrate multiple knowledge domains” (Jonassen, 2000, p. 80). Design problems are generated by stakeholders to meet needs that exist outside of the classroom (Simon, 1973; Jonassen, 2000)—this is in contrast to most...
- Keyword:
- Iteration, Project-based Learning, Design, Design-based Research, and Coaching
- Subject:
- Education, Design, and Educational technology
- Creator:
- Rees Lewis, Daniel George
- 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:14426 and etdadmin_upload_623161
-
- Description:
- Semiconductor nanowires, such as group IV and III-V nanowires, shows distinct electrical, optical and mechanical properties from their bulk counterparts due to their nanoscale size and 1-D morphology. For example, the quantum confinement effect modulates the band gap of a semiconductor nanowire when its diameter approaches or below the exciton...
- Keyword:
- atom-probe tomography, doping, nanowire, silicon, CVD, and strain
- Subject:
- Nanotechnology, Nanoscience, and Materials Science
- Creator:
- Sun, Zhiyuan
- 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:14424 and etdadmin_upload_622561
-
- Description:
- Theoretical investigation of photochemical processes in molecules is a nontrivial task. Ab initio calculations that completely describe such processes are often intractable to perform given today’s hardware. Thus, to gain insight into common areas of interest, such as in transition metal photochemistry and organic photovoltaics, less accurate but more feasible...
- Subject:
- Chemistry
- Creator:
- Kelley, Matthew
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_631424 and http://dissertations.umi.com/northwestern:14486
-
- Description:
- Etching flourished as a printmaking medium in Paris during the Second Empire and early Third Republic, the precise timeframe of the city’s drastic transformation due to the state-authorized phase of urban renewal implemented under the reign of Napoléon III by his prefect of the Seine, Baron Georges-Eugène Haussmann. This study...
- Keyword:
- Adolphe, Buhot, Charles, Paris, Meryon, Felix, Etching, Printmaking, and Martial Potemont
- Subject:
- Art history
- Creator:
- Dunn, Ashley Elizabeth
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_662987 and http://dissertations.umi.com/northwestern:14670
-
- Description:
- We address the problem of efficient maintenance of the answer to a new type of query: Continuous Maximizing Range-Sum (Co-MaxRS) for moving objects trajectories. The traditional static/spatial MaxRS problem finds a location for placing the centroid of a given (axes-parallel) rectangle $R$ so that the sum of the weights of...
- Keyword:
- Maximizing Range-Sum Query, MaxRS3, Optimal Density Clustering, Bursty Updates, Moving Objects Trajectories, and MaxRS
- Subject:
- Mathematics, Computer engineering, and Computer science
- Creator:
- Mas-ud Hussain, Muhammed
- 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:14445 and etdadmin_upload_625938
-
- Description:
- In three empirical chapters, this dissertation examines the field of sustainability over time, specifically uncovering the processes by which contentious interactions between movements and organizations can shift to the development of shared meaning and the creation of new organizational positions. The dissertation utilizes the analyses strategies of text analysis, field...
- Keyword:
- Organizations, Discourse, Sustainability, Occupations, and Text Analysis
- Subject:
- Management and Sociology
- Creator:
- Augustine, Grace L
- 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:14762 and etdadmin_upload_678683
-
- Description:
- This dissertation uses the lens of sociomateriality to examine two cases of innovative, technology-mediated civic learning programs, a U.S. Government class in a suburban high school that engages students in a simulation of the legislative process, and an English Language Arts unit in an urban public school in which students...
- Keyword:
- technology integration, liminality, assemblage, sociomateriality, infrastructure, and civic learning
- Subject:
- Curriculum development, Education, and Educational technology
- Creator:
- Smirnov, Natalia
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_677419 and http://dissertations.umi.com/northwestern:14757
-
- Description:
- Celebrity, reputation, and identity were complex issues for nineteenth-century British actresses. This dissertation examines how actresses responded to, integrated, and defied gender norms and social structures as they performed “authentic” identities for consuming publics. I investigate how actresses participated in charity events and bazaars, autobiographical writing, and advertising campaigns in...
- Keyword:
- Identity, Victorian, Reputation, Celebrity, Actresses, and England
- Subject:
- History, Theater, and Theater history
- Creator:
- Kelly, Lisa Michelle
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_667794 and http://dissertations.umi.com/northwestern:14707
-
- Description:
- Regulations often impose quality restrictions on firms, which in turn can influence prices and welfare in a theoretically ambiguous manner. To study such quality restrictions, my coauthor and I examine the Wright Amendment by analyzing its full repeal in 2014 as a natural experiment, and the analysis is documented in...
- Subject:
- Economics
- Creator:
- Wang, Sibo
- 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:14634 and etdadmin_upload_662278
-
- Description:
- Cognitive impairment is a significant public health concern as the United States (US) population continues to age at unprecedented rates. It is well established that older adults are more likely to have higher rates of morbidity and mortality, in addition to greater healthcare utilization and costs. A parallel concern is...
- Subject:
- Clinical psychology
- Creator:
- Lovett, Rebecca Mullen
- 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:14694 and etdadmin_upload_666549
-
- Description:
- Polymer nanocomposites have attracted great interest in recent years because of their potential as tailored materials with enhanced properties. Recent experiments have shown that polymer nanocomposites are able to achieve significant improvement in dielectrical, thermal, mechanical and other physical properties compared with their parent polymer systems. More importantly, these outstanding...
- Keyword:
- polymer nanocomposite, simulation, machine learning, optimization, database, and data mining
- Subject:
- Mechanical engineering
- Creator:
- Wang, Yixing
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_685582 and http://dissertations.umi.com/northwestern:14811
-
- Description:
- Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels are non-selective cation channels expressed in the brain and heart where they exert control over many diverse physiological properties. In the hippocampus, HCN channels are enriched in a dendritic gradient within CA1 pyramidal cells where they reduce dendritic integration and dampen neuronal excitability. HCN channels...
- Keyword:
- Temporal Lobe Epilepsy, HCN channels, Phosphorylation, and TRIP8b
- Subject:
- Neurosciences
- Creator:
- Foote, Kendall Marie
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_682272 and http://dissertations.umi.com/northwestern:14781
-
- Description:
- The vaudeville remains an oft-overlooked genre of French song that was popularized by Paris’s fairground theaters and street singers on the Pont Neuf. Many histories of French music point to the middle of the eighteenth century as the period when the vaudeville began its rapid disappearance from the city’s musical...
- Keyword:
- French Revolution, French popular song, France, vaudeville, théâtre de société, and timbres
- Subject:
- French literature, Theater history, and Music history
- Creator:
- Harmon, Jenna M
- 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:14645 and etdadmin_upload_662497
-
- Description:
- Prior studies about restatements generally examine outcomes under assumed auditor responsibility. Surprisingly, however, about 20% of the restatements obtained from Audit Analytics correspond to cases where the current auditor was not engaged during the misstatement period. I refer to these cases as uninvolved. The first chapter examines current literature findings...
- Keyword:
- misstatement announcements, audit outcomes to restatement, market reaction to restatement, audit firm independence, and audit firm reputation
- Subject:
- Accounting
- Creator:
- Gomez, Pedro Enrique
- 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:14607 and etdadmin_upload_661490
-
- Description:
- Decision making is an essential and indispensable element in everyday life. It is posited that parallel, distinct systems subserving deliberative, goal-directed control and automatic, habitual control underlie decision making. Computational accounts suggest that model-based and model-free learning strategies give rise to these two systems respectively. The model-based system is a...
- Keyword:
- Reward, fMRI, and Decision making
- Subject:
- Neurosciences
- Creator:
- Zhong, Wanting
- 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:14552 and etdadmin_upload_647965
-
- Description:
- For years, neuroscientists have strived to understand memory consolidation, where salient memories are sorted and organized into distributed cortical networks for long-term storage. A large body of sleep research suggests that slow-wave sleep is an optimal opportunity for memory consolidation, and that consolidation is driven, at least in part, by...
- Keyword:
- olfactory reactivation, functional MRI, slow-wave sleep, ventromedial prefrontal cortex, memory replay, and memory consolidation
- Subject:
- Neurosciences
- Creator:
- Shanahan, Laura Kathleen
- 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:14493 and etdadmin_upload_634332
-
- Description:
- This thesis deals with modeling long-term deformation and failure of concrete and shale structures. First concrete structures are studied. For concrete structures, design lifetime of over a hundred years is required. Shrinkage, swelling, creep and Alkali-silica reaction are significant parts of the long-term deformation of concrete and are studied here....
- Keyword:
- Alkali-Silica Reaction, Creep and Shrinkage, Branching of Hydraulic Cracks, Microprestress, Creep of Shale, and Cement Hydration
- Subject:
- Geophysics, Computational physics, and Civil engineering
- Creator:
- RAHIMI-AGHDAM, SAEED
- 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:14537 and etdadmin_upload_640235
-
- Description:
- Complex fluids are ubiquitous, from natural materials to manufactured products. Understanding their behavior under flow is vital for engineering these materials. Extensional flow, despite being industrially relevant and often producing dominant impacts upon complex fluids, is an underserved topic compared to shear flow due to a lack of reliable apparatuses...
- Keyword:
- cross-slot flow, carbon nanotube suspension, wormlike micelle, x-ray scattering, planar extensional flow, and lamellar surfactant
- Subject:
- Chemical engineering
- Creator:
- Luo, Binbin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_624324 and http://dissertations.umi.com/northwestern:14431
-
- Description:
- This dissertation develops a new framework and algorithms for statistical process control of stochastic textured surface data that have no distinct features other than stochastic characteristics that vary randomly (e.g., image data of textiles or material microstructures and surface metrology data of metal parts). All methods are general and nonparametric...
- Keyword:
- Industrial Statistics, Anomaly Detection, Defect Detection, Supervised Learning, Quality Engineering, and Image Dissimilarity
- Subject:
- Industrial engineering
- Creator:
- Bui, Anh Tuan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_680004 and http://dissertations.umi.com/northwestern:14772
-
- Description:
- Polymer nanocomposites are a class of advanced materials comprised of soft polymer matrix and nano-filler inclusions. While it has been found qualitatively that enhancements of material properties could be achieved by dispersing inorganic nano-particles into organic polymer matrix, the intrinsic governing principles of such composite has not been thoroughly studied...
- Keyword:
- Interphase, Data Mining, Design Optimization, Finite Element Analysis, Deep Learning, and Microstructure Characterization and Reconstruction
- Subject:
- Mechanical engineering, Computer science, and Engineering
- Creator:
- Li, Xiaolin
- 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:14436 and etdadmin_upload_625304
-
- Description:
- Solvent-rich polyelectrolyte complexes display a wide range of rheological properties, when different environmental parameters are applied. Due to the low energy barrier of the complexation (~10 kT), these materials possess tunable properties, with the states of these materials varying from Newtonian liquids to very tough hydrogels. This thesis aims to...
- Keyword:
- polyelectrolyte, thermo-thickening, fracture, gels, and viscoelasticity
- Subject:
- Materials Science
- Creator:
- Chen, Yaoyao
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_662844 and http://dissertations.umi.com/northwestern:14666
-
- Description:
- NSD2, a histone methyltransferase specific for methylation of histone 3 lysine 36 (H3K36), exhibits a glutamic acid to lysine mutation at residue 1099 (E1099K) in childhood acute lymphocytic leukemia (ALL). Cells harboring this mutation can become the predominant clone in relapsing disease. We studied the effects of this mutant enzyme...
- Keyword:
- oncology, acute lymphocytic leukemia, histone post-translational modifications, epigenetics, and cancer genetics
- Subject:
- Molecular biology, Oncology, and Cellular biology
- Creator:
- Swaroop, Alok
- 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:14456 and etdadmin_upload_626665
-
- Description:
- Some of the oldest drugs targeting metabolism are the antifolates such as aminopterin and methotrexate (MTX). MTX started being used in the 1950s to treat rheumatoid arthritis. Aminopterin and MTX both target one carbon metabolism and inhibit proliferation of cells. MTX was a potent inhibitor of inflammation, because it prevented...
- Keyword:
- macrophage, LPS, glutathione, metabolism, inflammation, and serine
- Subject:
- Biology
- Creator:
- Rodriguez, Arianne
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_638528 and http://dissertations.umi.com/northwestern:14513
-
- Description:
- Connecting structure and function in nanoscale engineered materials and devices relies on the analysis of the fundamental arrangement of matter, frequently under dynamic conditions. The demand to image structures at fundamental length scales has touched inorganic materials, biology, and frequently hybrid hard/soft materials with unique phenomena driven by heterogeneous components....
- Keyword:
- Imaging, Materials Imaging, Soft Materials, Crystallography, Machine Learning, and Electron Microscopy
- Subject:
- Nanoscience, Materials Science, and Computer science
- Creator:
- Hujsak, Karl
- 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:14515 and etdadmin_upload_638887
-
- Description:
- Cancer radiation therapy relies on optimized treatment plans whose quality assessment is judged by dosimetric planning aims. It is computationally prohibitive to incorporate the planning aims into the optimization models. Therefore, there exists a disconnect between the two steps of (1) optimizing a plan and (2) evaluating the optimized plan,...
- Keyword:
- Planning Aims, Robust Optimization, Data Driven, Radiation Therapy, and Knowledge Driven
- Subject:
- Industrial engineering and Operations research
- Creator:
- Shojaei, Sayyedeh Nastaran
- 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:14806 and etdadmin_upload_685183
-
- Description:
- In this dissertation, we study different machine learning algorithms including probabilistic, sparse and deep learning based models applied to multi-sensory datasets. In many machine learning problems, samples are collected from more than one source or modality. Also, various feature extraction methods can be used to provide more than one set...
- Subject:
- Computer science
- Creator:
- Rohani, Neda
- 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:14441 and etdadmin_upload_625710
-
- Description:
- Children are known to be curious and persistent question-askers. The pervasiveness of voice interfaces represents an opportunity for children who are still learning to read and write to independently search the Internet by directing questions at conversational agents such as Amazon’s Alexa, Apple’s Siri, and the Google Assistant. However, little...
- Keyword:
- question-asking, voice assistants, conversational agents, and children
- Subject:
- Information science, Developmental psychology, and Communication
- Creator:
- Lovato, Silvia B
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_662479 and http://dissertations.umi.com/northwestern:14643
-
- Description:
- The Controlled, Site-Isolated Synthesis of Polyelemental Nanostructures in Polymer Nanoreactors Pengcheng Chen Polyelemental nanoparticles are an attractive class of materials due to their potential applications, which span the fields of catalysis, plasmonics, electronics, magnetics, targeted drug delivery, and bio-imaging. However, conventional synthetic methods for such structures are limited, especially when...
- Keyword:
- Nanostructures, Catalysis, Nanoparticles, Polyelemental, Nanoreactors, and Polymer
- Subject:
- Inorganic chemistry, Chemistry, and Materials Science
- Creator:
- Chen, Pengcheng
- 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:14466 and etdadmin_upload_627177
-
- Description:
- This thesis focuses on the development of a cochlear implant (CI) that uses photons to stimulate surviving auditory neurons in severe-to-profoundly deaf individuals. The benefit of optical over electrical stimulation is its spatial selectivity with the potential to create significantly more independent channels to encode acoustic information and likely enhances...
- Subject:
- Audiology, Psychology, and Neurosciences
- Creator:
- Xu, Yingyue
- 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:14587 and etdadmin_upload_660188
-
- Description:
- Conventional methods in industrial organization assume that firms are strategically sophisticated and set prices as best responses to their competitive environment. In the first two chapters of this dissertation, I use a detailed dataset of retail and wholesale prices from the newly legalized cannabis industry in Washington state to show...
- Keyword:
- Optimal Pricing, Rule-of-thumb Pricing, Product Samples, New Markets, and Upstream Links
- Subject:
- Economics
- Creator:
- Escudero, Manuel Matias
- 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:14609 and etdadmin_upload_661657
-
- Description:
- The National Rifle Association (NRA) is much more politically powerful than we might expect it to be. Despite both shockingly high rates of gun violence and deep, durable public support for stricter rules on gun ownership, the NRA regularly defeats or weakens the content of gun control legislation. Its influence...
- Subject:
- Political science
- Creator:
- Lacombe, Matthew James
- 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:14547 and etdadmin_upload_645456
-
- Description:
- Interleukin 33 (IL-33) is a complex inflammatory cytokine with diverse functions. In the context of cancer development, depending on the model, the implementation and dosage, and the immune cells involved, IL-33 can elicit dramatically different outcomes. Recent studies, including our own, have explored definitive contributions of the adaptive immunity in...
- Keyword:
- cancer immunology, natural killer cells, interleukin 33, Innate lymphoid cells, immunotherapy, and cd73
- Subject:
- Oncology and Immunology
- Creator:
- Long, Alan Wyndham
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_639294 and http://dissertations.umi.com/northwestern:14519
-
- Description:
- Metal-organic frameworks (MOFs) are a class of nanoporous materials with highly tunable pore shape and chemistry. They are synthesized in a "building block" approach to form crystalline porous materials, which have been explored for diverse applications including gas storage and separations. Given the enormous size of the MOF design space,...
- Keyword:
- Molecular modeling, Adsorption, Cheminformatics, Database, Data science, and Metal-organic framework
- Subject:
- Chemical engineering
- Creator:
- Bucior, Benjamin James
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_679201 and http://dissertations.umi.com/northwestern:14767
-
- Description:
- A stroke occurs when blood flow in the brain is impaired and often causes damage to corticospinal tract projections that control the muscles of the upper-extremity. Due to this damage, 50-70% of stroke survivors experience long-term upper-extremity functional deficits(Faria-Fortini, Michaelsen, Cassiano, & Teixeira-Salmela, 2011). These deficits result from motor impairments...
- Keyword:
- hemiparetic, Neural, Strength, Biomechanical, Weakness, and Stroke
- Subject:
- Biomedical engineering
- Creator:
- Garmirian, Lindsay
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_686135 and http://dissertations.umi.com/northwestern:14829
-
- Description:
- This dissertation investigates long-term biographies of seventeen small medieval settlements in the region of Hegranes, Skagafjörður, North Iceland, placing their creation, development, and reuse in the context of coupled social and environmental change. The individuals and households who lived at the Hegranes sites were at the nexus of both kinds...
- Keyword:
- Environment, North Atlantic, Sustainability, Archaeology, Medieval Europe, and Iceland
- Subject:
- Archaeology
- Creator:
- Catlin, Kathryn A
- 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:14744 and etdadmin_upload_675578
-
- Description:
- Data mining is multidisciplinary process involving computer science, artificial intelli- gence, and machine learning. The aim of data mining is discovering knowledge from a vast amount of data. This process consists of a set of stages forming a pipeline. This pipeline process consists of multiple steps: 1) Finding the right...
- Subject:
- Computer science
- Creator:
- Al-Bahrani, Reda
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_631418 and http://dissertations.umi.com/northwestern:14485
-
- Description:
- Hybrid pixel detectors, comprising of pixelated sensors coupled to readout integrated circuits (ROICs) with complex in-pixel processing, are essential for many of today’s scientific instruments and imaging systems. Large-area detectors are required in a variety of systems: from detectors for synchrotron beamlines to telescopes for astronomy, which range from a...
- Keyword:
- Vertical Integration, Reconfigurable Readout, Deadtime-less, deadzone-less, Pixel detector, and Edgeless ROIC
- Subject:
- Electrical engineering
- Creator:
- Fahim, Farah
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_669054 and http://dissertations.umi.com/northwestern:14718
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- Description:
- This dissertation contains four essays. The first essay, Strategically Giving Service: The Effect of Real-Time Information on Service Efficiency, analyzes the impact of the increased availability of real-time information on the behavior of strategic agents and the implications of this phenomenon for service efficiency using data from one of the...
- Keyword:
- service operations, operations management, and empirical operations
- Subject:
- Business administration
- Creator:
- KARACAOGLU Garro Beraza, Nil
- 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:14611 and etdadmin_upload_661699
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- Description:
- Localized corrosion involves the selective attack of a metal at a small, exposed site. This can be particularly devastating for load-bearing structures like bridges, which can fail catastrophically even with very little material loss. Unfortunately, such corrosion is very hard to prevent, predict, and detect. Corrosion can be prevented by...
- Keyword:
- liquids, coatings, and self-healing
- Subject:
- Materials Science
- Creator:
- Lim, Alane Tarianna Ocampo
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_663032 and http://dissertations.umi.com/northwestern:14674
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- Description:
- Records of temperature and precipitation during Quaternary interglacial periods on Greenland are notably scarce, limiting assessment of the magnitude and rate of local environmental response to orbitally-driven Arctic warming. It is largely unknown if warming across Greenland was spatially uniform through past interglacials, and if warming was accompanied by major...
- Keyword:
- Chironomid, n-alkanes, n-acids, Greenland, Hydrogen isotopes, and Paleoclimate
- Subject:
- Paleoclimate science
- Creator:
- McFarlin, Jamie Marie
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_661785 and http://dissertations.umi.com/northwestern:14613
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- Description:
- In solar energy conversion ranging from artificial photosynthesis to photocatalysis, transition metal complexes (TMC) are essential building blocks due to several attractive properties: intense absorption within the solar spectrum, presence of charge-transfer excited state, and substrate binding capability through coordination geometry changes. In order to gain insight into controlling solar...
- Keyword:
- Transition Metal Complex, Excited state dynamics, and X-ray Transient Absorption Spectroscopy
- Subject:
- Physical chemistry
- Creator:
- Hong, Jiyun
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_662106 and http://dissertations.umi.com/northwestern:14629
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- Description:
- Proteins represent a critical class of biomolecules, universally employed by all living organisms to fulfill essential structural, functional, and enzymatic roles necessary to support life. In nature, these polymers are composed generally of twenty natural amino acid (AA) building blocks, which can be modified with covalent adducts known as post-translational...
- Keyword:
- post-translational modification, genome engineering, cell-free protein synthesis, synthetic biology, orthogonal translation system, and non-canonical amino acid
- Subject:
- Bioengineering, Biology, and Biochemistry
- Creator:
- Des Soye, Benjamin James
- 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:14473 and etdadmin_upload_627384
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- Description:
- This dissertation researches the Cenomanian, Turonian, and Coniacian Stages (100.5 - 86.3 Ma) of the Cretaceous Period, a geologic interval of interest due to its extreme global warmth, iconic faunas, and oceanic anoxic events (OAEs). Five globally dispersed geochemical and stratigraphic case studies reconstruct interactions of the mid-Cretaceous carbon cycle...
- Keyword:
- Stratigraphy, Isotope Geochemistry, Sea Level, Greenhouse Climate, Ocean Anoxic Events, and Cretaceous
- Subject:
- Geochemistry, Geology, and Sedimentary geology
- Creator:
- Jones, Matthew Madden
- 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:14461 and etdadmin_upload_626920
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- Description:
- Organic semiconductors have shown great promise for optoelectronic applications, particularly solar photovoltaics. Critical to their success is the ability to understand and manipulate the relationship between molecular structure and bulk properties. Substantial progress on understanding structural influences on electronic properties has been made for the conjugated polymers and small molecules...
- Keyword:
- Aggregation, Ultrafast Spectroscopy, PTB7, Spectroscopy, Organic Semiconductor, and Organic Photovoltaic
- Subject:
- Physical chemistry, Chemistry, and Condensed matter physics
- Creator:
- Fauvell, Thomas James
- 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:14521 and etdadmin_upload_639550
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- Description:
- In this paper, we study the basic locus in the fiber at $p$ of a certain unitary Shimura variety with a certain parahoric level structure. The basic locus $\widehat{\CM^{ss}}$ is uniformized by a formal scheme $\CN$ which is called Rapoport-Zink space. We show that the irreducible components of the induced...
- Subject:
- Mathematics
- Creator:
- Cho, Sungyoon
- 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:14572 and etdadmin_upload_657697
-
- Description:
- The study of magnetic frustration has attracted considerable interest in the fields of materials science and condensed matter physics. Artificial Spin Ices (ASIs) are the primary systems in which magnetic frustration has been studied. To date, most studies on ASIs have been on fully periodic systems. In this thesis, we...
- Keyword:
- Lorentz Microscopy, Magnetic Materials, Artificial Spin Ice, and Magnetic Imaging
- Subject:
- Materials Science
- Creator:
- Brajuskovic, Vuk
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_677615 and http://dissertations.umi.com/northwestern:14759
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- Description:
- Owing to policy action as well as continued cost declines, solar and wind resources are projected to play a central role in many future electricity systems. Since the technological characteristics and cost structures of these resources differ significantly from traditional thermal technologies, many have questioned how market designs will need...
- Keyword:
- Market design and Power systems
- Subject:
- Operations research
- Creator:
- Mays, Jacob
- 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:14660 and etdadmin_upload_662781
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- Description:
- Blockchains are an exciting new type of Peer-to-Peer (P2P) distributed systems, which enable parties to transact directly, and maintain the record of said interactions in a distributed manner. A unique feature of blockchains is their ability to maintain a consensus without requiring knowledge on the number of participants, nor their...
- Keyword:
- Blockchain Distribution Network, Distributed Systems, Blockchain Scalability, Blockchain, Layer-0, and Relay Networks
- Subject:
- Computer science
- Creator:
- Klarman, Uri
- 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:14514 and etdadmin_upload_638535
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- Description:
- In multiatomic systems, high applied pressures reduce interatomic contact distances. At pressures comparable to those inside planets, this relatively simple principle completely changes the guiding principles of chemistry and physics established at near-ambient conditions. High-pressure investigations of precisely how the laws of nature evolve in the gigapascal and megabar regime...
- Keyword:
- Magnetism, Jarosite, Mineral Physics, High Pressure, BiVO3, and Synthesis
- Subject:
- Inorganic chemistry
- Creator:
- Klein, Ryan Alexander
- 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:14839 and etdadmin_upload_686360
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- Description:
- This dissertation explores two topics in macroeconomics related to aggregation assumptions and microfoundations. Chapters 1 and 2 focus on the representative agent aggregation assumption in the context of open economies, using both an empirical as well as a theoretical approach. Chapter 3 on the other hand, deals with the microfoundations...
- Subject:
- Economics
- Creator:
- Cugat, Gabriela Mariel
- 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:14610 and etdadmin_upload_661676