Children are impressionable customers, and the media they consume influences their behaviors and perceptions. Gender stereotypes are highly prevalent in children’s media, which can often lead children to create idealized images of what boys and girls should be. This paper explores advertising in children’s television commercials given changes in our...
The Northwestern University Libraries Repository and Digital Curation (RDC)
department is tasked with digitising and creating digital collections from the materials managed by the Libraries’ curators. The previous process for the intake and management of these projects created a situation of feast or famine regarding project work that was ready...
This paper describes how Atomic Layer Deposition (ALD) has evolved over time using a combination of bibliometric, social network, and text analysis. We examined the rate of knowledge production as well as changes in authors, journals, and collaborators, showing a steady growth of ALD research. The study of the collaboration...
Behind the Wallpaper was written for Julia Holter and Spektral Quartet in 2014–15, expanding on a four-song cycle of the same name from 2013. It was premiered on February 23, 2015 at Amsterdam Bar & Hall in St. Paul, MN, as part of the Liquid Music Series. The piece tells...
This document gives a brief history of classical music (Western art music) in Sarajevo, Bosnia and Herzegovina, with a focus on recent events and developments from the beginning of the siege (1992) to the present. Further focus is placed on the effects of Sarajevo's cultural pluralism on the city's largest...
Since Ottorino Respighi included the recording of a nightingale in his Pini di Roma (1924), composers have used prerecorded nature sounds, or field recordings, to help establish a specific sense of place. The purpose of this project is to examine how modern composers utilize field recordings to create natural-world settings,...
Since the standardization of the modern brass quintet in the middle of the twentieth century, extensive research has been dedicated to the history of the genre, ensembles which have promoted and advanced brass chamber music and the growing body of original brass quintet repertoire. Such scholarship has provided practical benefits...
Starting in the late 1950s, the advertising world rapidly became a fertile arena for experimentation in the realm of electronic music. Composers explored new forms, such as the sound logo; new technology, such as the Moog synthesizer; and new semiotic relationships between music, words, images and concepts, including attempts to...
Ever since Jean-Baptiste Lully welcomed the horn to the stage as an instrument capable of producing music suitable for indoors, a tradition of horn methodology and pedagogy has been developed and expanded over the centuries. Despite the volume and variety of pedagogical materials available to the horn student and pedagogue...
Chaya Czernowin’s opera 'Pnima…ins innere' is about the encounter between a young Israeli boy and his grandfather, a Holocaust survivor so traumatized by his past that he cannot speak. Fittingly, the opera does not contain any words: the four singers in the work instead sing phonemes and other non-verbal sounds....
Kaija Saariaho’s vocal music offers singers a rewarding challenge. Her works contain extended techniques and innovative performance practices, which allow her to create interesting and moving timbral effects. Her musical language has its foundation in her cultural identity, formed when she was a girl in the forests of Finland. The...
Beethoven’s late compositional style is known for bending conventions he learned as a young man. Many discussions of his late style concentrate on adherence to and deviations from the conventions of functional harmony, fugal techniques, and sonata form. This document sheds light on an additional, previously unexamined aspect of Beethoven’s...
Georg Friedrich Haas composed in vain in reaction to political events in his native Austria. The piece is well known for making use of clashing tuning systems and darkness in the concert hall. These two facets of Haas’s writing have been much discussed and written about. The political dimension of...
It is becoming increasingly evident that the nanoscale organization and structure of macromolecules play a significant role in determining the function and properties of biological systems. To understand the relationships between biological structure and function at nanometer length scales, there is a need for methods which enable imaging of intact...
In many dryland environments, vegetation self-organizes into bands that can be clearly identified in remotely-sensed imagery. The status of individual bands can be tracked over time, allowing for a detailed remote analysis of how human populations affect the vital balance of dryland ecosystems. In this study, we characterize vegetation change...
This is the text of a public address at the Nigerian Institute of International Affairs delivered soon after the inauguration of Nigeria’s Fourth Republic. It identified several priorities after fifteen and a half years of military government. The country’s eroded legislative, judicial, and other state institutions needed to be rebuilt...
This opinion piece, written by two long-term students of Nigerian politics, proposed a different course to the one taken following the death in mid-1998 of a military tyrant and the elected president he had imprisoned. It called for the creation of a caretaker national government of respected civilians that would...
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...
More than taking Nigeria back into the “dismal tunnel” of military rule, after seizing power in November 1993, Sani Abacha raced through the playbook he knew as a senior member of Babangida’s junta. Like Babangida, he pushed back the announced date for the return to civilian rule, launched an exercise...
When this testimony was given, there was still hope that Ibrahim Babangida would transfer the presidency to the elected Moshood Abiola before he left office on August 27, 1993. In that way, Nigeria would join the wave of post-Cold War democratizing nations. I had earlier called for a “transition in...
A long-running wager took place between the Babangida regime (1985-1993) and Nigerian civic, professional and political groups that the former would honor its commitment to usher in a Third Republic via free and fair elections. The June 12, 1993 elections were as free, fair and competently administered as could be...
This paper was written at the midway point in the governing of Nigeria by a paradoxical individual, Ibrahim Babangida. It should provoke further studies of his 8-year rule, 1985-1993, that seemed transformative during much of this period but ended in disarray and disappointment. The ideological orientation of the Nigerian economy;...
In this article, a Nigerian military system of governance is explicated. It was the dominant mode of governance in Nigeria until civilian rule was restored in 1999, initially under a former military ruler. Starting from the first military coup in January 1966, Nigeria experienced over 33 years of this system,...
The suitability of the term “crucible” to capture the dilemmas of Nigeria is evident in this unpublished paper. After Ibrahim Babangida supplanted Muhammadu Buhari as the head-of-state in August 1985, Nigeria entered an arena of experimentation in several regards. Babangida is arguably the most dynamic, skilfull and charismatic leader in...
An address delivered at the launching of the Nigerian edition of my book on prebendalism published by Spectrum Books (Ibadan), at the Nigerian Institute of International Affairs. It appeared in print in The Guardian (Lagos), June 5, 1991.
As many systems of military and autocratic rule came under challenge in Africa, Nigeria lost its leadership position in a democratizing era with the collapse of the Second Republic, 1979-1983. Four military heads-of-state followed. One of the most hopeful transitional experiments in Africa, conducted under General Ibrahim Babangida, 1985-1993, ended...
Research questions: Do students face pressure to choose certain racial identities in different social spheres on campus? What identities are selected in what situations? What struggles are faced by those of more than one race on Northwestern’s campus? What privileges are associated with being a multi-racial student at Northwestern University?...
Aim to facilitate the production of the treatment by optimizing reproducibility and minimizing cost. Tasks: Find cost/time effective way to reach end product, Perfecting technique to increase yield, Adjusting known procedure when necessary, Molecule compliant with drug-like properties (Lipiphilic, Ingestible, Long half-life)
Humans are unique in their ability to think abstractly (e.g. using language, learning relations). Previous work from our lab has shown that infants can learn simple abstract relations, like whether two objects are the “same” or “different”. In this study, we investigated flexibility in early learning. Our question was whether...
Which areas of Chicago have greater concentrations of lead in their water and is that associated with environmental racism? Since Chicago is racially segregated, the marginalized areas such as the south side and west side are more likely to contain high levels of lead.
Neuroscience research has made many important contributions to the study of the brain and behavior. Perhaps because of these contributions the general public seems to be easily seduced by neuroscientific explanations. Meaning that when a scientific article is paired with a brain image, the information within the article is automatically...
There have been numerous studies that have aimed at improving the low tensile strength, stiffness, and toughness of cementitious materials. This study aims to show that all of these characteristics can be greatly improved by the addition of ladder scale reinforcement at the nano and micro scale. Carbon nanofibers (CNFs)...
Concern over construction vibration-induced cracking has led to development of a new approach to vibration monitoring called autonomous crack measurement (ACM) and illustrated in Figure 1. This paper describes the concept as well as sensor performance in the first test house fitted an ACM system. Response of three cracks in...
This paper summarizes micro-inch response of cosmetic cracks in a typical slab-ongrade ranch style house to both construction equipment-induced vibration and environmental (weather) effects. This structure was instrumented, and its response studied as part of the development of an Autonomous Crack Measurement (ACM) system. ACM systems are intended to record...
Carbonation, a neutralizing reaction in cement paste, can be used to date cracks in cementitious materials. Currently, comparison between two cracks is the only method available to predict a relative age with carbonation. These two crack studies require a crack of known age in a similar material with similar exposure...
Blasting and climatological response of cracks are compared for structures constructed of concrete block typical of home construction in Europe. While much has been written comparing micrometer crack response of wood frame structures typical of residential construction in North America, little has been written concerning response of structures more typical...
Surveillance of large geotechnical projects requires autonomous collection of data from a wide range of instrument types. An equally large range of data formats are employed by these measurement systems. A data exchange protocol is needed to make field data available for interpretation on a variety of platforms. This paper...
Most studies of crack response have focused on opening and closing of a crack in the plane of the wall in which the crack occurs. Crack movement also occurs perpendicular or normal to the plane of the wall. This paper will examine and compare the in-plane and out-of-plane (normal) response...
Cracking is one of the most common concerns cited by owners of structures adjacent to construction or mining blasting. While a large database of case studies documenting the relative insignificance of ground motion induced by responsible blasting compared to weather effects on cracks in nearby structures has been established, the...
The custom of voluntarily tipping for services rendered has gone in and out of fashion in America since its introduction in the 19th century. Restaurant owners that ban tipping in their establishments often claim that social justice drives their decisions, but we show that rational profit-maximization may also justify the...
In this essay, key features of Nigerian governance since independence are reviewed. The military had ruled the county for thirteen years and civilian politicians, in two phases, had done so for ten. Military governments involved significant participation by civilians, so there was overlap between these successive systems. Moreover, the military...
The forcible ending of Nigeria’s second attempt at constitutional civilian rule since independence in 1960 is a mixed story. The 1983 general elections were tarnished by violence and fraud. They took place in a context of economic decline and policy disarray. However, the opposition still retained an important share of...
This article resumes the exploration of Nigeria’s political economy and the entrenchment of a prebendal mode of attitudes and behaviors. It takes up the shift to a mono-mineral export economy, the socio- economic proclivities of the dominant class, the considerable expansion in the state’s economic role, and the distinct pattern...
The building of the Second Republic required a military government, which had been deeply engaged in shaping the Federation over almost fifteen years, performing as an impartial umpire in the electoral choice of its successors. This complex process is dissected in this article together with an analysis of the relative...
The building of a trans-ethnic political space, and a nation that commands the loyalty of the country’s citizens, have been persistent aspirations of Nigerian governments. The 1979 elections demonstrated that, however much political party leaders may seek to build a national following, they are “trapped” by ethnic and other sectional...
The 1979 Nigerian elections reflected the dedication of Nigerians to pursue democratic governance and the severe challenges to be overcome. The sweeping victory of the NPN, and the election of Alhaji Shehu Shagari as president, required a last-minute manipulation of the formula for achieving victory in the first round. After...
In the years preceding the 1979 national elections, ideology featured prominently in political debates and consultations regarding the new constitutional order. Proponents of a social democratic system were particularly prominent. However, the actual formation of political parties, governed by the new requirements for national representation, and the resurgence of veteran...
A half-century of high revenues from petroleum export has failed to elevate more than a small percentage of Nigerians above the poverty level. The failure to manage the vicissitudes of global oil markets, and to grow other sectors of the economy, has led to constant budget deficits and unsustainable national...
The issues discussed in this essay - the fundamental objectives of the Nigerian state, public accountability, and a code of conduct for state officials - have been central concerns throughout its post- colonial history. Underlying these debates have been differing views about the best political economy model for Nigeria. The...
A longstanding goal of synthetic biology has been the programmable control of cellular functions. Central to this is the creation of versatile regulatory toolsets that allow for programmable control of gene expression. Of the many regulatory molecules available, RNA regulators offer the intriguing possibility of de novo design – allowing...
Traditional bottom-up mass spectrometry-based proteomics relies on the use of an enzyme, often trypsin, to generate small peptides (typically < 25 amino acids long). In top-down proteomics, proteins remain intact and are directly measured within the mass spectrometer. This technique, while inherently simpler than bottom-up proteomics, generates data which must...
Contents:
Volume 1, Number 1;
Volume 1, Number 2;
Volume 1, Number 3;
Volume 1, Number 4;
Volume 1, Number 5;
Volume 2, Number 1;
Volume 2, Number 2;
Volume 2, Number 3;
Volume 3, Number 1;
Volume 3, Number 2;
Volume 3, Number 3;
Volume 3, Number 4;
Volume...
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.
A study is conducted to determine the effects on the early hydration kinetics and
compressive strength by seeding of Portland cement and alkali-activated blast furnace
slag with a pure form of calcium silicate hydrate (C-S-H). The effects of C-S-H seeding
during the early nucleation and growth period of each type...
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...
The in-depth inspection by WIDOT detected two sites that had visible cracks in the stiffener-to-hanger diaphragm welds, the east side of Hanger 6 in the north tie girder, and the east side of Hanger 4 in the south tie girder. Additionally, many ultrasonic indications were detected by WIDOT in the...
This report describes the results of applying acoustic emission (AE) testing to the trunnion shafts of the East Span of the 1-5 Interstate Bridge. The tests were done at the request of Oregon DOT personnel to determine if active fatigue racks are present in the subject shafts.
The U.S. has 542,000 bridges that consume billions of dollars per year in construction, rehabilitation and maintenance funds and which are the lifelines of U.S. commerce. The 1992 ISTEA (fntermodal Surface Transportation Efficiency Act) mandates the implementation of a quantitative computerized bridge management system by I 996. A prime need...
The Avalon Media System (Avalon) provides access and management for digital audio and video collections in libraries and archives. The open source project is led by the libraries of Indiana University Bloomington and Northwestern University and is funded in part by grants from The Andrew W. Mellon Foundation and Institute...
This paper describes proposed schemes for describing and indexing two image collections and requirements for the software that would give the end-user access to thesaurus terms and a graphical display of the faceted classification structures of indexing records. Editorial cartoons comprise one collection, dance videos the other.
The nondestructive, in-situ testing of early-age concrete properties is a crucial point for the progress of many construction projects in the building sector. The application of such techniques can establish e.g. the earliest possible form removal from concrete construction elements, thereby opening highways to traffic or releasing prestress from steel...
The setting and hardening process of concrete is considered to be the most critical time period during the life of a concrete structure. Previous research has been conducted on an ultrasonic wave reflection method that utilizes a steel plate embedded in the concrete to measure the reflection loss of shear...
The Center for Advanced Cement-Based Materials (ACBM) is a consortium of researchers from: Northwestern University, University of Illinois at Urbana-Champaign, Purdue University, The University of Michigan, and The National Institute of Standards and Technology. This ACBM update contains information on the article "A better Maturity Meter?" by Surendra P. Shah...
The gradual evolution of the material properties of a cement-based material, i.e. the stiffness of cement paste, is the result of the continuous change of the microstructure with the progress of the hydration process. Based on an existing micromechanical model for the simulation of the shear and elastic modulus of...
In this paper, the correlation of reflection loss measured by an ultrasonic shear wave reflection
method and the microstructure in cement-based material is investigated. Three cement pastes
(Portland cement type I) with different water-cement ratios (0.35, 0.50 and 0.60) cured at 25
°C were examined. The ultrasonic shear wave reflection...
This presentation contains information on the keynote paper "Health Monitoring of Early Age Concrete". The presentation was delivered by Surendra P. Shah at CONSEC'04 in Seoul, Korea on June 30, 2004.
The setting and hardening process of concrete can be considered as the most critical time period during the life of a concrete structure. To assure high quality and avoid problems in performance throughout the life of the material, it is essential to have reliable information about the early age properties...
The concrete currently used in the slip-form paving process is a low slump concrete that requires both internal and external vibration in order to achieve satisfactory compaction. The use of vibrator fingers for the internal vibration often leads to trails on the surface of the pavement and to segregation around...
The paper deals with the behavior of fluid cement pastes, formulated from Self Consolidating Concretes (SCCs), and the experimental correlation of fundamental rheological properties, such as the yield stress and the viscosity, with measurements from field tests, such as the mini-cone slump flow test. As a matter of fact, several...
This presentation contains information on the project "Aligning Data to Support Transportation Decisions, Emerging Challenges & Opportunities for the Data World". The presentation was delivered by Joseph L. Schofer at Transportation Research Board – AASHTO Peer Exchange meeting on May 15-16, 2008.