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-
- Description:
- The basal ganglia operate largely in closed parallel loops, including an associative circuit for goal-directed behavior originating from the dorsomedial striatum (DMS) and a somatosensory circuit important for habit formation originating from the dorsolateral striatum (DLS). An exception to this parallel circuit organization was proposed to explain how information is...
- Keyword:
- Substantia nigra, Dorsal Striatum, Ascending Spiral, Dopamine, Striato-nigro-striatal, and Disinhibition
- Subject:
- Physiology, Psychobiology, and Neurosciences
- Creator:
- Ambrosi, Priscilla
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_984164 and http://dissertations.umi.com/northwestern:16526
-
- Description:
- This dissertation project explores the relationship between the architectures of black masculinity in America and a specific performance of discreet sexual identity. Through critical ethnographic and discursive exploration, I look closely at a group of black men who describe themselves as being on the "down low" (DL). These men, who...
- Keyword:
- sexuality
- Subject:
- Performance Studies
- Creator:
- Jeffrey Quinn Mccune
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/26/2018
- Date Modified:
- 07/26/2018
- Date Created:
- 2007-05-16
- Resource Type:
- Dissertation
-
- Description:
- Complex oxides show great potential for future devices as they offer functionalities beyond what can be delivered by conventional semiconductors. Among the complex oxides, the ABO$_{3}$ perovskite oxides are the most studied and engineered in the form of thin films and heterostructures. This thesis applies powerful synchrotron-based X-ray characterization tools,...
- Keyword:
- Strontium titanate, Surface X-ray diffraction, Oxide surfaces, Oxygen vacancies, Oxide molecular beam epitaxy, and Perovskite oxides
- Subject:
- Materials Science and Engineering
- Creator:
- Seyoung Cook
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/03/2019
- Date Modified:
- 04/03/2019
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
-
- Description:
- In this dissertation, we start with the dictionary learning (DL) based single-frame super-resolution (SR) problem, where low resolution (LR) input frames are super-resolved to high resolution (HR) output frames. We propose to extend the previous single-frame SR methods to multiple-frames, i.e., estimating single HR output frame by multiple LR input...
- Keyword:
- adaptive sampling, super resolution, inverse problem, image fusion, deep learning, and machine learning
- Subject:
- Electrical Engineering
- Creator:
- Qiqin Dai
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 10/26/2018
- Date Modified:
- 01/29/2019
- Date Created:
- 2017-01-01
- Resource Type:
- Dissertation
-
Synthesis of Fluorescent DNA-Modified Polymer Nanoparticles for Use in a Highly Sensitive DNA Assay,
- Description:
- Polymer nanoparticles (PNPs) were formed from amphiphilic diblock copolymers consisting of a hydrophilic block with pendant polyethylene glycol tosylate (PEG-OTs) groups and a hydrophobic block with pendant terthiophene (TTT) groups. The resulting PNPs were characterized using dynamic light scattering (DLS) and transmission electron microscopy (TEM) to determine size, shape, and...
- Keyword:
- Volume 6
- Creator:
- Sharan R. Srinivasan, SonBinh T. Nguyen, Megan M. Boyle, and Brian Stepp
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/23/2018
- Date Modified:
- 07/23/2018
- Date Created:
- 2009
- Resource Type:
- Article
-
- Description:
- Super-resolution (SR) has become one of the most critical problems in image and video processing. In Chapter 2 of this thesis, a detailed review of existing Deep Learning (DL) techniques for addressing the SR task, with an emphasis on how DL and analytical techniques can be combined, is provided. Chapter...
- Keyword:
- Image Processing, Video Processing, Deep Learning, and Super-Resolution
- Subject:
- Electrical engineering and Computer science
- Creator:
- Lucas, Alice Marie
- 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:15076 and etdadmin_upload_741221
-
- Description:
- Recent discoveries of black hole (BH) candidates in galactic and extragalactic globular clusters (GCs) have ignited interest in understanding how BHs dynamically evolve in a GC and the number of BHs (NBH) that may still be retained by today's GCs. Numerical models show that even if stellar-mass BHs are retained...
- Keyword:
- crd18
- Creator:
- Newlin Weatherford
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/05/2018
- Date Modified:
- 04/05/2018
- Date Created:
- 2018-04-05
- Resource Type:
- Poster
-
- Description:
- Cardiovascular disease is the leading cause of death in US and non-invasive cardiac imaging has vital importance for early detection and diagnosis of heart disease. Cardiac Magnetic Resonance (CMR) is arguably the most versatile imaging modality and capable of a comprehensive evaluation of heart disease without ionization radiation. Despite the...
- Keyword:
- Cardiovascular MRI, Deep learning, Magnetic Resonance Imaging , Image segmentation, Compressed Sensing, and Image reconstruction
- Subject:
- Artificial intelligence, Medical imaging, and Computer science
- Creator:
- Shen, Daming
- 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:15537 and etdadmin_upload_816372
-
- Description:
- On February 22, 2022, I gave a talk hosted by the African Studies Program of Georgetown University. Two days later, Russian battalions were sent across Ukraine’s borders by President Vladimir Putin. In real time, viewers around the world have seen immense distress unleashed on innocent citizens. In Africa, distress has...
- Keyword:
- africa and governance
- Creator:
- Joseph, Richard
- Depositor:
- Chris Diaz
- Owner:
- Richard A Joseph
- Date Uploaded:
- 04/19/2022
- Date Modified:
- 04/19/2022
- Date Created:
- 2022
- Resource Type:
- Research Paper
-
- Description:
- Regulatory T (Treg) cells are required to control immune responses and maintain homeostasis, but are a significant barrier to antitumor immunity. Conversely, Treg instability, characterized by loss of the master transcription factor Foxp3 and acquisition of proinflammatory properties, can promote autoimmunity and/or facilitate more effective tumor immunity. A comprehensive understanding...
- Keyword:
- Tumor, Treg, Ubiquitin, Foxp3, Usp21, and Usp22
- Subject:
- Biology, Cellular biology, and Immunology
- Creator:
- Montauti, Elena
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/02/2022
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_846345 and http://dissertations.umi.com/northwestern:15780
-
- Description:
- Halide perovskites, AMX3 (A = monocation, B = Ge, Sn, or Pb, and X = halogen), present a versatile class of solution-processable semiconductors made from earth abundant materials with outstanding electrical and optical properties. Their solar cell efficiencies have dramatically increased from ~9% to ~22% in less than five years...
- Keyword:
- solar cells, semiconductors, halide perovskites, and two-dimensional
- Subject:
- Chemistry
- Creator:
- Duyen Hanh Cao
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/02/2018
- Date Modified:
- 04/02/2018
- Date Created:
- 2017-01-01
- Resource Type:
- Dissertation
-
- Description:
- Trees in urban areas offer ecosystem services like carbon sequestration, storm water attenuation, reduction of energy used in buildings and wildlife habitat. Cities invest substantial funds and resources to maintain a healthy urban forest, and much research has been done to improve its resiliency and sustainability. Studies have been done...
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Darling, Lindsay E.
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 02/04/2019
- Date Created:
- 2013-09-04
- Resource Type:
- Masters Thesis
- Alternate Identifier:
- http://hdl.handle.net.DL/repo-pbmt-darling
-
- Description:
- Interfacial science brings together diverse areas of interest such as electronic materials, quantum materials, bio-membranes and catalysts. In-situ X-ray characterization techniques can be used to understand the assembly of atoms, molecules and supported nanoparticles at interfaces in complex environments. This thesis work focuses on the use of various X-ray characterization...
- Keyword:
- Atomic Layer Deposition, X-ray standing wave, Catalysis, Thin film, X-ray spectroscopy, and X-ray physics
- Subject:
- Physics and Materials Science
- Creator:
- Das, Anusheela
- 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:15916 and etdadmin_upload_877997
-
- Description:
- In 2015, the United States Preventive Services Task Force (USPSTF) recommended targeted screening for prediabetes and diabetes (dysglycemia) in adults who are aged 40 to 70 y old and overweight or obese. Given increasing prevalence of dysglycemia at younger ages and lower body weight, particularly among racial/ethnic minorities, we sought...
- Keyword:
- dysglycemia
- Creator:
- Sarah S. Rittner, Joseph Feinglass, Amro Hassan, Andrew Hamilton, Matthew J. O'Brien, Nivedita Mohanty, Ji Young Lee, Ronald T. Ackermann, Jessica N. Park, Maria C. Vargas, Lei Liu, David R. Buchanan, and Mercedes R. Carnethon
- Owner:
- Chris Diaz
- Publisher:
- PLOS
- Date Uploaded:
- 05/08/2017
- Date Modified:
- 05/08/2017
- Date Created:
- 2016-07-12
- Resource Type:
- Article
-
- Description:
- Transposable elements (TEs) have been recognized as potentially powerful drivers of genomic evolutionary change, but factors affecting their mobility and regulation remain poorly understood. Chaperones such as Hsp90 buffer environmental perturbations by regulating protein conformation, but are also part of the PIWI-interacting RNA pathway, which regulates genomic instability arising from...
- Keyword:
- transposable elements, piRNAs, stress-induced mutagenesis, hsp90, genome stability, and evolution
- Creator:
- Steve Whyard, Jeremy C. Brownlie, and Calen P. Ryan
- Owner:
- Chris Diaz
- Publisher:
- Oxford University Press
- Date Uploaded:
- 05/08/2017
- Date Modified:
- 05/08/2017
- Date Created:
- 2016-12-24
- Resource Type:
- Article
- Alternate Identifier:
- https://doi.org/10.1093/gbe/evw284
-
- Description:
- NiTi shape memory alloy (SMA) has drawn a great deal of attention for its various applications in the medical field (orthodontics, cardiovascular stents technology, etc.) and in other engineering fields (aerospace, aircraft, automotive, etc.) as it shows shape memory effect, superelasticity and biocompatibility. The fatigue-related issues, however, are pronounced in...
- Subject:
- Materials Science
- Creator:
- Liu, Chuan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_794898 and http://dissertations.umi.com/northwestern:15461
-
- Description:
- Affective science has long been interested in the coherence between different emotion response systems (e.g., subjective emotional experience, behavior, physiology). Although evolutionary functionalist accounts of emotion hold that emotional coherence should be related to greater adaptation, few studies have analyzed links between emotional coherence and wellbeing. Thus, in this laboratory-based...
- Keyword:
- Emotional coherence, facial expressions, age, well-being, physiology, and sadness
- Subject:
- Psychology
- Creator:
- Katherine K. Bae
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/20/2018
- Date Modified:
- 04/20/2018
- Date Created:
- 2016-04-24
- Resource Type:
- Other
-
- Keyword:
- water, surveys, water security, water insecurity, sustainable development goal, and indicator
- Creator:
- Indira Bose, Joshua D. Miller, and Sera L. Young
- Owner:
- Sera Young
- Language:
- English
- Date Uploaded:
- 03/15/2024
- Date Modified:
- 04/22/2024
- Date Created:
- 2024-03-22
- Resource Type:
- Report
-
- Description:
- Contemporary Ethiopian is, without question, facing enormous challenges. At the core of these challenges lay a state-building process major constituencies and elite groups were either alienated from, forced to acquiesce to, or coopted into. Unable to derive political legitimacy from democratic participation, successive governments largely relied on coercion and neopatrimonialism,...
- Keyword:
- citizenship, managing diversity, constitutional law, law, states' rights, Ethiopia, political science, consociationalism, federalism, democratization, constitutionalism, intersectionality, and ethnic federalism
- Subject:
- Law and Political Science
- Creator:
- Dr. Juweria Ali, Loid Taye, Dr. Solomon Negussie, Melhik A. Bekele, Fowsia Abdulkadir, Dr. Christophe Van der Beken, Rediet Baye Ayalew, Professor Thomas Geraghty, Prof. Dr. Adeno Addis, Teguadda Alebachew, Dr. Abchu Wassihun, Dr. Mulugeta Mengist Ayalew, Prof. Dr. Assefa Fiseha, Dr. Mizanie Abate Tadesse, Dr. Getachew Assefa Wodemariam, Dr. Semir Yusuf, Abduletif Kedir Idris, Dr. Aberra Degefa, Kokebe Wolde Jemaneh, Dr. Kalkidan Negash Obse, Dr. Abadir M. Ibrahim, Dr. Zemalek Ayitenew Ayele, Dr. Yonatan Tesfaye Fessha, Dr. Semeneh Ayalew Asfaw, Dr. Abdi Jibril, Dr. Sossina M. Haile, Dr. Tigist Shewarega Hussen, Dr. Berihun Adugna Gebeye, Dr. Adem K. Abebe, Dr. Mohammed Dejan Assen, Dr. Zelalem Mogessie Teferra, Gossaye Ayele, Dr. Yitayew Alemayehu, Dr. Shimelis Mulugeta Kene, and Dr. Sisay Alemahu Yeshanew
- Contributor:
- Mezgebu Tesema (cover art) and May Malone (cover design)
- Owner:
- Basia Kapolka
- Publisher:
- Northwestern University Libraries and Northwestern University Roberta Buffett Institute for Global Affairs
- Language:
- English
- Date Uploaded:
- 12/15/2022
- Date Modified:
- 01/03/2023
- Date Created:
- 2022-12-22
- Resource Type:
- Book
- Alternate Identifier:
- ISBN 978-1-954984-06-6
-
- Description:
- Included in this submission are the following supplementary materials that were unable to be included in the article, but the authors would like to make available for other researchers: ● Raw data csv files and R analysis code ● Supplemental graphs ● Full bibliography ● Sources of Materials document ●... and Below is the abstract for the forthcoming Book and Paper Group Annual article at the time of this submission. Rigid polysaccharide gels are a vital area of research for library and paper conservation, as they are still a relatively new material in the field. This experiment investigates anecdotal concerns of...
- Creator:
- Karissa Muratore and Haley Carter
- Owner:
- Karissa Ann Muratore
- Publisher:
- Northwestern University
- Date Uploaded:
- 08/22/2022
- Date Modified:
- 08/22/2022
- Date Created:
- 2022-08-22
- Resource Type:
- Dataset
-
- Keyword:
- environment, sustainability, climate change, disaster management, building materials, and disaster reconstruction
- Creator:
- Vidushi Dwivedi, MS Research Assistant, Institute for Sustainability and Energy at Northwestern University, William M. Miller, PhD Professor of Chemical & Biological Engineering, Northwestern University, Mike M. McMahon Strategic Partnerships Administrator, Institute for Sustainability and Energy at Northwestern University., Anita Van Breda Senior Director, Environment and Disaster Management World Wildlife Fund, Jennifer B. Dunn, PhD Associate Professor of Chemical & Biological Engineering, Northwestern University , Stephen H. Carr, PhD, P.E. Professor Emeritus of Materials Science and Engineering and Chemical and Biological Engineering, Northwestern University, and Missaka Hettiarachchi PhD, CEng Senior Fellow, World Wildlife Fund
- Contributor:
- Jennifer Pepson-Elwood , Elham Ramyar, Vasantha Wakkumbura, and Megan McConnell
- Owner:
- Mike McMahon
- Language:
- English
- Date Uploaded:
- 10/27/2021
- Date Modified:
- 12/01/2021
- Date Created:
- 2021-11-22
- Resource Type:
- Report
- Alternate Identifier:
- ISBN 978-0-578-31332-0 and DOI 10.21985/n2-139p-gw08
-
- Description:
- The theorists who developed Social Justice Education (SJE) claim that its goals are: to critically analyze how oppression operates on an individual, cultural, and institutional level, to harness empathy and respect for others, and, ultimately, to commit to working for lasting change. However, the literature lacks research on how to...
- Keyword:
- Social Justice Education, Social Empathy, and Storytelling
- Creator:
- Samantha Oberman
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 06/04/2019
- Date Modified:
- 06/04/2019
- Date Created:
- 5/22/2019
-
- Keyword:
- higher education
- Subject:
- Education and Social Policy
- Creator:
- Samantha Buresch
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 06/03/2019
- Date Modified:
- 06/03/2019
- Date Created:
- 2019-05-22
-
- Description:
- In this thesis we study minimal measures for Lagrangian systems on compact manifolds. This thesis consists of three parts which are closely related. The first part is Chapter 3 and Chapter 4. In Chapter 3 and 4, we consider geodesic flows on compact surfaces with higher genus. We show that...
- Keyword:
- Minimal Measures
- Subject:
- Mathematics
- Creator:
- Fang Wang
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 10/02/2018
- Date Modified:
- 10/02/2018
- Date Created:
- 2008-08-22
- Resource Type:
- Dissertation
-
- Description:
- The idea of the unity of audition and vision has been a topic of interest since the time of ancient Greece. Investigation of this idea has continued to grow in many areas, especially in psychology, music, visual art, and computer science, most notably since the invention of the world's earliest...
- Keyword:
- match between auditory and visual parameters, audio-to-visual instruments, transformation algorithms, and constant-Q filter bank analysis
- Subject:
- Music Theory
- Creator:
- Mikyung Kim
- Owner:
- Jason Christ Chandra
- Date Uploaded:
- 09/16/2018
- Date Modified:
- 09/16/2018
- Date Created:
- 2008-10-22
- Resource Type:
- Dissertation
-
- Description:
- The semiconductor-based Quantum Cascade Laser (QCL) offers several key advantages over gas lasers, solid-state lasers, and other semiconductor-based mid-infrared lasers. While the QCL has historically operated best in the λ ~ 7-9 μm range using InP-based materials, a major challenge has been to achieve a high-power, room-temperature continuous-wave (CW) operation...
- Keyword:
- Gas Source Molecular Beam Epitaxy MBE, intersubband, Compound Semiconductor, Mid-Infrared Laser, InP, and Quantum Cascade Laser
- Subject:
- Electrical and Computer Engineering
- Creator:
- Allan Joseph Evans
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 09/14/2018
- Date Modified:
- 09/14/2018
- Date Created:
- 2008-05-22
- Resource Type:
- Dissertation
-
- Description:
- The overall objective of this thesis is to develop a package of high-resolution, non-invasive experimental and numerical approaches to observe in situ pore-scale geometry modification due to colloid deposition, and quantitatively predict its effects on the large-scale transport properties of the porous medium. High-energy synchrotron-based X-ray difference micro-tomography (XDMT) was...
- Keyword:
- Civil Engineering
- Subject:
- Civil and Environmental Engineering
- Creator:
- Cheng Chen
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 09/13/2018
- Date Modified:
- 09/13/2018
- Date Created:
- 2008-07-22
- Resource Type:
- Dissertation
-
- Description:
- Funding risky Research and Development (R&D) and New Product Development (NPD) projects is crucial for the long term health of any large company. Such funding decisions are multiobjective and are undertaken with sparse data. Therefore prescriptive or algorithmic solutions are not adopted by practitioners. Descriptive solutions that provide managerial insights...
- Keyword:
- Industrial
- Subject:
- Industrial Engineering and Management Sciences
- Creator:
- Souvik Banerjee
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 09/13/2018
- Date Modified:
- 09/13/2018
- Date Created:
- 2008-05-22
- Resource Type:
- Dissertation
-
- Description:
- Visual object tracking, i.e. consistently inferring the motion of a desired target from image sequences, is a must-have component to bridge low-level image processing techniques and high-level video content analysis. This has been an active and fruitful research topic in the computer vision community for decades due to both its...
- Keyword:
- Context-awareness, Visual Attention, Computer Vision, Multiple Target Tracking, Video Processing, and Visual Tracking
- Subject:
- Electrical and Computer Engineering
- Creator:
- Ming Ying
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 09/06/2018
- Date Modified:
- 09/06/2018
- Date Created:
- 2008-05-22
- Resource Type:
- Dissertation
-
- Description:
- This dissertation analyzes the transformation of fantasy sports from a deviant, outside-the-mainstream fan culture to a billion-dollar industry that comprises almost 20 million North American participants. Fantasy sports are games in which participants adopt the simultaneous roles of owner, general manager, and coach of their own teams of real athletes...
- Keyword:
- sports, popular culture, audience studies, and fan culture
- Subject:
- Media, Technology and Society
- Creator:
- Ben Shields
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 09/06/2018
- Date Modified:
- 09/06/2018
- Date Created:
- 2008-04-22
- Resource Type:
- Dissertation
-
- Description:
- Inactivation of tumor suppressors genes, which encode regulatory proteins critical for maintaining normal cellular function, is a common occurrence in cancer. Ikaros is a hematopoietic-specific zinc finger protein that functions as a differentiation regulator and has properties of a tumor suppressor. Ikaros functions to regulate gene expression as a component...
- Keyword:
- Notch, Ikaros, tumor suppressor, and RBP-J
- Subject:
- Integrated Graduate Program in the Life Sciences
- Creator:
- Katie L Kathrein
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 09/01/2018
- Date Modified:
- 09/01/2018
- Date Created:
- 2008-02-22
- Resource Type:
- Dissertation
-
- Description:
- A comprehensive understanding of how image processing occurs in the primary visual cortex (V1) requires learning what aspects of neuronal responses are driven by strong feed-forward input from the lateral geniculate nucleus (LGN), and what aspects arise due to the densely recurrent network operating within the cortex itself. From an...
- Keyword:
- Neuroscience and Biology
- Subject:
- Neuroscience Institute Graduate Program
- Creator:
- Ian Micah Finn
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 08/16/2018
- Date Modified:
- 08/16/2018
- Date Created:
- 2007-10-22
- Resource Type:
- Dissertation
-
- Description:
- The first chapter of this dissertation investigates the pricing of systematic variance risk in the equity options market. Cross sectional tests on synthetic variance swap returns reveal no evidence of a negative market variance risk premium. Furthermore, we show that a class of linear factor models cannot simultaneously explain index...
- Keyword:
- dispersion trading, pairs trading, correlation trading, equity options, variance swaps, and volatility forecasting
- Subject:
- Finance
- Creator:
- Vadim di Pietro
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 08/16/2018
- Date Modified:
- 08/16/2018
- Date Created:
- 2007-06-22
- Resource Type:
- Dissertation
-
- Description:
- This work investigates children's early semantic representations of gradable adjectives (GAs) and proposes that infants perform a probabilistic analysis of the input to learn about abstract differences within this category. I first demonstrate that children as young as age three distinguish between relative (e.g., 'big', 'long'), maximum standard absolute (e.g.,...
- Keyword:
- semantics, word learning, comparison, language acquisition, adjectives, and adverbs
- Subject:
- Linguistics
- Creator:
- Kristen L Syrett
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 08/14/2018
- Date Modified:
- 08/14/2018
- Date Created:
- 2007-08-22
- Resource Type:
- Dissertation
-
- Description:
- Surfaces and interfaces, which are ubiquitous in the environment, control the mobility,speciation, and ultimate fate of groundwater species. The presented work provides insight into the interfacial behavior of three environmental pollutants: hexavalent chromium, oxytetracycline, and morantel. Model surfaces are employed for these studies, including (1-102) α-Al<sub>2</sub>O<sub>3</sub> and a carboxylic acid-terminated...
- Keyword:
- Physical and Chemistry
- Subject:
- Chemistry
- Creator:
- Michael Joseph Musorrafiti
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 08/13/2018
- Date Modified:
- 08/13/2018
- Date Created:
- 2007-08-22
- Resource Type:
- Dissertation
-
- Description:
- Activin, a member of the TGF-b superfamily, controls a variety of physiological events from the cell cycle to reproductive health. Activin activates the Smad signaling pathway through ActRII/B and ALK4 receptors. The regulation of activin signaling is carried out in part by the inhibitor protein follistatin. The mechanistic details of...
- Keyword:
- Biology and Molecular
- Subject:
- Interdepartmental Biological Sciences Program
- Creator:
- Thomas F Lerch
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 08/07/2018
- Date Modified:
- 08/07/2018
- Date Created:
- 2007-08-22
- Resource Type:
- Dissertation
-
- Description:
- This study investigates the causes and welfare consequences of unravelling in two-sided matching markets. "Unravelling" arises when agents contract with one another at an early stage, before much of the relevant information is available. Such early matches may lead to ex-post inefficiencies and are perceived as socially harmful. This study...
- Keyword:
- Economics and Theory
- Subject:
- Economics
- Creator:
- Hanna Wieslawa Halaburda
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 08/06/2018
- Date Modified:
- 08/06/2018
- Date Created:
- 2007-06-22
- Resource Type:
- Dissertation
-
- Description:
- Local structure determination in amorphous and disordered systems, which are crystallographically intractable, is critical for gaining an understanding of their properties. X-ray absorption spectroscopy (XAS) is an excellent tool for local structure determination in amorphous and disordered environmental materials. Amorphous manganese oxides produced by the freshwater bacterium Leptothrix discophora SP6...
- Keyword:
- Biogenic manganese oxides
- Subject:
- Chemistry
- Creator:
- Ian Saratovsky
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 05/10/2018
- Date Modified:
- 05/10/2018
- Date Created:
- 2006-12-22
- Resource Type:
- Dissertation
-
- Description:
- This dissertation presents submillimeter polarimetry methods and scientific results. The scientific results focus on revealing the magnetic field structure of giant molecular clouds (GMCs). The basic principles, instrumentation, observing strategy, and data analysis methods of submillimeter polarimetry are introduced. The scientific data were acquired by SPARO during the observing campaign...
- Keyword:
- Physics
- Subject:
- Physics and Astronomy
- Creator:
- Hua Bai Li
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 05/10/2018
- Date Modified:
- 05/10/2018
- Date Created:
- 2006-12-22
- Resource Type:
- Dissertation
-
- Description:
- Reactivation of latent human cytomegalovirus is of significant concern in immunocompromised transplant patients. However, the mechanisms controlling reactivation of latent CMV have not been understood. It is likely that reactivation is initiated by induction of IE gene expression. In this thesis, I studied molecular mechanisms leading to transcriptional activation of...
- Keyword:
- Microbiology and Biology
- Subject:
- Integrated Graduate Program in the Life Sciences
- Creator:
- Soo Jung Kim
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 05/10/2018
- Date Modified:
- 05/10/2018
- Date Created:
- 2006-12-22
- Resource Type:
- Dissertation
-
- Description:
- Understanding how root traits vary within and among species, and how they respond to heterogeneous environments, can provide important insight into functional plant attributes that influence plant survival in competitive environments. Selecting plant material with root traits that will support its survival in competitive environments may help improve the outcomes...
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Foxx, Alicia
- Owner:
- Nurganym Agzamova
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/08/2023
- Date Created:
- 2014-07-22
- Resource Type:
- Masters Thesis
-
- Description:
- Surface-enhanced Raman spectroscopy (SERS) is a powerful analytical technique that can detect single molecules and simultaneously obtain structural information. When an analyte molecule binds to a nanostructured noble metal surface, the otherwise weak normal Raman signal is enhanced by as much as a factor of 108. This makes SERS the...
- Keyword:
- Surface-Enhanced Raman Spectroscopy and single molecule spectroscopy
- Subject:
- Physical chemistry and Nanoscience
- Creator:
- Wong, Nolan Log-chi
- 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:14406 and etdadmin_upload_617842
-
- Description:
- This dissertation contains three empirical studies in economic history and labor economics. The first chapter discusses two sources of historical data on work stoppages in the United States: the Third Annual Report of the Commissioner of Labor (1888) and the Tenth Annual Report of the Commissioner of Labor (1896). It...
- Subject:
- Economic history and Economics
- Creator:
- Bittarello, Luca
- 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:14721 and etdadmin_upload_669611
-
- Description:
- Substance abuse is one of the most critical public health problems affecting juvenile detainees. Previous research suggests that a significant proportion of juvenile detainees with substance use disorders do not receive treatment prior to or during detention. Using data from the Northwestern Juvenile Project, a large-scale longitudinal study of juvenile...
- Keyword:
- Psychology
- Subject:
- Clinical Psychology
- Creator:
- Leah Paskar
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 10/01/2018
- Date Modified:
- 10/01/2018
- Date Created:
- 2008-11-24
- Resource Type:
- Dissertation
-
- Description:
- The purpose of this mixed methods study was to learn about the ways that instrumental music teachers in Chicago navigate the urban landscape. The design of the study most closely resembles Creswell and Plano Clark's (2007) two-part Triangulation Convergence Mixed Methods Design, with the addition of an initial exploratory focus...
- Keyword:
- mixed methods, urban, music education, Chicago, music teaching, and instrumental music
- Subject:
- Music Education
- Creator:
- Kate R. Fitzpatrick
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 09/07/2018
- Date Modified:
- 09/07/2018
- Date Created:
- 2008-05-09
- Resource Type:
- Dissertation
-
- Description:
- The morphological evolution due to coarsening is analyzed for two distinctive types of microstructure. First, the feasibility of characterizing spatial correlations of interfacial curvature in topologically complex structures is demonstrated with the analysis of bicontinuous two-phase mixtures produced using phase field modeling. For structures produced with both conserved and nonconserved...
- Keyword:
- interfacial curvature
- Subject:
- Materials Science and Engineering
- Creator:
- Amber Lynn Genau
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 10/03/2018
- Date Modified:
- 10/03/2018
- Date Created:
- 2008-09-02
- Resource Type:
- Dissertation
-
- Description:
- This thesis is organized into three essays, each with particular insights involving public policy and family formation: In the first essay, I address the well-documented correlation between the prestige of the university and the labor market income of its graduates by investigating whether a possible medium for this effect is...
- Keyword:
- College Major, Education, Marriage, Financial Aid, and Divorce
- Subject:
- Economics
- Creator:
- Benjamin Walter Bohdan Passty
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 09/18/2018
- Date Modified:
- 09/18/2018
- Date Created:
- 2008-07-01
- Resource Type:
- Dissertation
-
- Description:
- This dissertation addresses the process-pathways running between immigrant adolescents' life experiences and their engagement in school by providing an ecocultural perspective on self-regulation. While the role of social context, such as stress and resources, has been identified as critical in its influence on different dimensions of adolescent development, research on...
- Keyword:
- Development, Problem Solving, Adolescence, Stress, Self-Regulation, and Culture
- Subject:
- Education and Social Policy - Learning Sciences
- Creator:
- Helen Julia Eksner
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 06/25/2018
- Date Modified:
- 06/25/2018
- Date Created:
- 2007-05-15
- Resource Type:
- Dissertation
-
- Description:
- The segmental prestressed concrete box girder of Koror-Babeldaob (KB) Bridge in Palau, which had the record span of 241 m (791 ft.), presents a striking paradigm of serviceability loss due to excessive multi-decade deflections. The data required for analysis have recently been released and are here exploited to show how...
- Keyword:
- Nondestructive testing
- Creator:
- Qiang Yu, Zdenek P. Bazant , and Guang-Hua Li
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/26/2017
- Date Modified:
- 07/26/2017
- Date Created:
- 2009-12
- Resource Type:
- Report
-
- Description:
- The leptonic and inclusive hadronic decay branching fractions of the W boson are studied using 35.9 $fb^{-1}$ of proton-proton collision data collected at $\sqrt{s}=13~TeV$ during the 2016 run of the CMS experiment. Events characterized by the production of pairs of W bosons from \ttbar and \tW processes are selected. Multiple...
- Keyword:
- lepton flavor universality, W boson branching fraction, and CMS
- Subject:
- Physics and Particle physics
- Creator:
- Chen, Ziheng
- 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:15758 and etdadmin_upload_845225