This report includes the findings of acoustic emission (AE) tests on the Fremont tied arch bridge in Portland Oregon conducted by research engineers from the Infrastructure Technology Institute of Northwestern University on March 24th, 1997.
The newsletter of The Office of African-American Student Affairs. The mission of the publication is to expose undergraduate Black students to African American role models, Northwestern faculty, staff, alumni, and graduate students and support their personal and professional development of futures Black leaders.
The following bibliography developed in conjunction with the research project AMoney Morals:
The Decline of the Naira in the Social Life and Popular Culture of Nigeria, 1985B1995,@
undertaken by Jane Guyer and LaRay Denzer.
To prepare this bibliography, Northwestern University=s Online Catalog (NUcat) and
Northwestern=s online catalog of papers presented...
A remote global monitoring system is being operated on a 65 year old lift bridge in Sturgeon Bay Wisconsin. The system uses both strain gages and clinometers to continuously monitor the "health" of the fracture critical components of the bridge. Ruggedized miniaturized data loggers are locally mounted on the structure...
This technical report shows the findings of acoustic emission and strain gage monitoring tests conducted by research engineers of Infrastructure Technology Institute from Northwestern University on April 18, 1997 in Sacramento, California.
Some five years ago, during the first year of my assistantship at the Music Academy in Katowice, I required students to analyse some of Penderecki's early, so-called "sonoristic" pieces. The outcome of that assignment proved unsatisfactory, however, because the students tended to describe Penderecki's pieces as chaotic assemblages of sound...
A qualitative evaluation of the Africa Demos forum from a small group of African scholars and one journalist writing on various topics related to Africa.
Non-destructive evaluation (NDE) techniques have been used for a number of years to provide quality control of construction procedures for drilled shafts and driven concrete piles. In particular sonic echo and impulse response methods have been used extensively to check lengths and continuity of newly-installed foundations. In recent years, the...
Chinese television has gone through enormous growth and significant structural change since the economic reforms of the 1970s. The changes include an increased number of channels, the establishment of overseas channels, increased reliance on advertising, more diversified programming, and heightened market competition. The new multi-channel media environment has the potential...
This revised version of a paper presented at a conference at M.I.T. on State, Conflict, and Democracy in 1997 pulled together key dimensions of a Nigeria that had drifted far from constitutional and democratic governance. State and society had become increasingly criminalized; the educational system and other social sectors were...
This document will examine the influence of sacred, Latin, polyphonic, Tudor, choral composition on the compositional style of contemporary British composer, Gabriel Jackson. This examination will lead to an acknowledgement and discussion of the larger trend in 21st-century choral music to incorporate older compositional models into new works.
The impetus...
Personality traits and personal values represent individual differences that influence many forms of behavior including psychopathology (Hanel & Wolfradt, 2016; Jarden, 2010; Ozer & Benet-Martinez, 2006; Schwartz, 2006). Extensive research has highlighted the importance of personality traits in the development of psychopathology in children. However, the association between values and...
This collection of full-text searchable digitized publications primarily documents Black student life at Northwestern from 1967-2011. It includes newsletters, handbooks, and literary magazines created by organizations affiliated with Northwestern’s Black Student Alliance, For Members Only (FMO), the Department of African American Student Affairs (AASA), and Northwestern University Black Alumni Association...
In a wide range of political systems, political parties and politicians deliver special favors and material benefits to their constituents as a means of mobilizing their support during elections. This phenomenon, called patronage politics, is the focus of this dissertation. Although existing research has uncovered important variations in the patterns...
A proliferation of new media platforms have upended the traditional roles that journalists have played in society, placing their work into content streams that are populated by creators who mimic the surface features of their work but not their methods. As a result, journalists’ practices and news media that they...
Most cognitive research on conceptual structure has studied undergraduate populations and either natural (biological) or artificial (experiment-specific) categories. This project investigates how people with extensive, rich knowledge about a complex real-world domain organize and use that knowledge. The research extends prior work on differences among types of experts within biological...
This working paper surveys Islamic organizations, movements, and ideologies in Nigeria, roughly identifying them along the lines of Islamic traditionalism, Sufi orders (turuq lit. pathways), Salafi/Wahhabi revivalism2 modernist and insurgent Islam(ism), trado-Islamic and Christo-Islamic syncretism and deviant “Islamic” cultism. Previous academic studies of Nigerian Islam were often limited to the...
As scientists use the tools of computational and complex systems theory to broaden science perspectives (e.g., Bar-Yam, 1997; Holland, 1995; Wolfram, 2002), so can middle-school students broaden their perspectives using appropriate tools. The goals of this dissertation project are to build, study, evaluate, and compare activities designed to foster both...
My dissertation investigates the social mechanisms that determine the allocation of consequences of earnings restatements for organizational elites, using a sample S&P1500 Index-listed firms restating earnings between 1997 and 2003. In chapter 1, I examine turnover following revelations of organizational misconduct. I find that outside director turnover is associated with...
Organizational research has analyzed employee-organization relationships for years (Eisenberger, Fasolo, & Davis-LaMastro, 1990; Levinson, 1965; Tsui, Pearce, Porter, & Tripoli, 1997). However, the research on organizational citizenship behavior (OCB) has mainly focused upon antecedents and consequences of OCB attentive to organizational outcomes. This study extends OCB research to investigate OCB...
This work is a research effort aimed at understanding the mechanisms of single-molecule surface-enhanced Raman spectroscopy (SMSERS). In the decade since its discovery in 1997, the role of resonance Raman (RR) enhancement, the origin of blinking, and the properties of the hot spot formed at the junction of two nanoparticles...
This dissertation examines the birth and rise of orthorexia nervosa, a proposed psychiatric diagnosis described as a pathological fixation with healthy eating. Orthorexia made its first public appearance in the pages of a popular magazine for yoga practitioners in 1997, and later in a self-help book on the subject. Despite...
This paper was presented on March, 28, 2015, at the Association for College and Research Libraries Conference in Portland, Oregon. Slides are also available for download. and Post-graduate internships, residencies, and fellowships have existed in research libraries since the 1930s, and have increasingly become a diversity recruitment and retention method of college and university libraries since the 1980s. These programs recruit recent graduates from Library and Information Science programs for training and specialization in some aspect of...
This dissertation examines how preparing settlements for war (i.e. fortification) relates to the maintenance of power relations. Violence has psychological and physical effects that can lead to asymmetries of power and extreme forms of social inequality (Brumfiel 1998; Carneiro 1970; Earle 1997; Fanon 1968; Farmer 2005; Flannery and Marcus 2012;...
Generalized extreme value (GEV) models provide a convenient way to model choice behavior that is consistent with utility maximization theory, but the development of specific new models within the GEV family has been slow, due to the difficulty of ensuring new formulations comply with all the GEV rules. The network...
Autism spectrum disorder (ASD) is a heritable, neurodevelopmental disorder characterized by social impairments and restricted and repetitive behaviors (American Psychiatric Association, 2013; Tick, Bolton, Happe, Rutter, & Rijsdijk, 2016), with a subset of first-degree relatives demonstrating a constellation of subclinical traits that are qualitatively similar to the defining features of...
In an era of personalized medicine, the clinical community has become increasingly focused on understanding diseases at the cellular and molecular level. Magnetic resonance imaging (MRI) is a powerful imaging modality for acquiring anatomical and functional information. However, it has limited applications in field of molecular imaging due to low...
This dissertation consists of three essays on corporate governance. In the first essay of the dissertation (“The Effects of Succession Planning on CEO Succession Events: Implications for Both Focal and Competing Firms”), I examine whether and how both focal and competing firms are affected by sudden CEO deaths. By using...
Human skin oils are significant scavengers of atmospheric oxidants in occupied indoor environments. Many techniques used to study gas-phase transformations of surface films indoors have been limited to off-line bulk analysis, although more surface-selective methodologies are emerging. Here, we present a multi-prong analytical approach to characterizing skin oil ozonolysis. Skin...
In the first two decades of the twenty-first century, we have witnessed a surge of public interest in and discussion around racial reckoning. Universities in the United States and across the globe are grappling with their historical associations with transatlantic and chattel slavery. This dissertation takes up the question of...
Metal-organic frameworks (MOFs) are porous, crystalline materials synthesized by combining metal nodes and organic linkers through self-assembly. The diverse range of building blocks available allows for extensive tunability of MOFs, enabling the optimization of these materials for various applications, such as gas storage, separations, and catalysis. This study aimed to...
Glioblastoma (GBM) is the most common aggressive primary malignant brain tumorin adults with a median age of onset of 65 years of age. Although advanced age is often associated with worse GBM patient survival, the predominant source(s) of maladaptive aging
effects remains to be established. Here we studied intra-tumoral and...
In recent years, we have seen the embryo of Industry 4.0 which has been promoting manufacturing processes towards the future with better efficiency, higher accuracy and better reliability. However, manufacturing precision has been restricted by the precision of metrology and material characterization. In other words, one can only manufacture parts...
Stairs and curbs often present as an exhausting environmental barrier for individuals with bilateral cerebral palsy (CP) due to their lower limb motor impairments. Indeed, performance in stair-climbing in this population has a higher correlation with disruption of mobility than walking. Community members affected by CP consider impaired mobility a...
Anthropologists engaging with biopolitical theory have commonly assumed that biomedicine is a tool for enacting state-based policies to manage population health. Recent insights in medical anthropology have troubled this assumption, calling into question the role of physicians as “handmaidens” of state-based health policy. I use my position as a physician-anthropologist...
The role of providing care for a loved one with Alzheimer’s disease can expose friends and family caregivers to significant stress over an extended period of time, resulting in a host of negative outcomes like increased depression and anxiety, and diminished quality of life. However, previous studies have found that...
This thesis document is comprised of three research projects. The first investigates the active vibrational modes involved in twisted intramolecular charge transfer in a Julolidine-BODIPY dyad using two-dimensional electronic spectroscopy along with DFT calculations. We identified two types of vibrations, compression and torsional motion, as playing an important role in...
The need for complex and sophisticated materials continues to grow as society becomes more advanced. For many chemists, the design of these materials begins by looking towards model molecular systems for the identification of desirable properties and functions. As such, restricting oneself to C, H, N, O, and the other...
Each neuron in the primary motor cortex (M1) is like a musician in an orchestra, contributing to a larger harmony under the constraint of a “neural manifold”—a geometric score describing the correlated signals produced by the neural musicians that drive movement. Despite the widespread recognition of the importance of M1...
Interpenetrating polymer networks (IPNs) are multicomponent materials that enhance the compatibility of otherwise immiscible polymers by trapping the microstructure in a non-equilibrium state. By combining polymers with vastly different moduli, IPNs effectively disperse rigid polymers within a soft matrix, resulting in a reinforced elastomer. This approach significantly increases the modulus...
Large scale adoption of sustainable technologies for energy productionand storage can be greatly facilitated by scientific advances impacting efficiency, cost and availability. The study of materials is instrumental in both upgrading the performance of existing technologies and enabling the development of new ones, and ab-initio methods and machine learning represent...
Chronic stress is a significant risk factor for the development of numerous psychiatric disorders, including major depressive disorder (MDD). Individuals with MDD exhibit impairments in reward processing and decreased motivation to engage in previously-rewarding activities. Importantly, there is a large sex disparity in MDD diagnosis, such that it affects nearly...
In this dissertation, we aim to develop a theoretical understanding of foundation models and reinforcement learning. We delve into a comprehensive analysis of specific aspects within these domains. The focal points of our study are as follows: • Generative Adversarial Imitation Learning (GAIL) with Neural Networks: GAIL is poised to...