Within the world of art music, composers have employed a variety of techniques to infuse popular music elements into their writing. This document is an examination of specific instances of this trend in twenty-first century wind ensemble repertoire. The study is limited to twenty-first century wind ensemble works by living...
This is an attempt to recreate a reference architecture with the intention of completing a data engineering capstone project and also learning the services and technologies along the progress. The objective of the project is to use aws cloud managed services to build at scale solution to process, parse and...
This book is freely available in an open access edition thanks to TOME (Toward an Open Monograph Ecosystem)—a collaboration of the Association of American Universities, the Association of University Presses, and the Association of Research Libraries—and the generous support of the Pennsylvania State University. Learn more at the TOME website,... and In Original Forgiveness, Nicolas de Warren challenges the widespread assumption that forgiveness is always a response to something that has incited it. Rather than considering forgiveness exclusively in terms of an encounter between individuals or groups after injury, he argues that availability for the possibility of forgiveness represents an original...
Advances in machine learning and artificial intelligence (AI) are enabling computers and robotics to take on an increasing number of work-related tasks that previously were the sole domain of humans. This trend raises questions: Which jobs will be most susceptible to replacement by automation? How many workers risk being replaced?...
There is growing evidence that growth with invasive species influences the traits of co-occurring native plants over multiple generations. Some studies indicate that these experienced populations perform better in the presence of the invasive species that led to the trait changes. These experienced populations could serve as source material for...
Soil texture has important ramifications on the shape and size of roots as well as impacting how much water is taken up and the distribution of nutrients in the soil. These factors lead to differences in growth characteristics and plant performance. However, what traits and how the plant responds to...
Understanding how root traits vary within a species and how traits 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 heterogenous environments may help improve the outcomes of...
Restoration practitioners have many seed material choices when restoring plant communities, and for some species, cultivars may be the most affordable and accessible material available. However, the process of plant selection and commercial seed production can limit trait variability critical to survival and persistence in heterogeneous environments. Several studies have...
This book is freely available in an open access edition thanks to TOME (Toward an Open Monograph Ecosystem)—a collaboration of the Association of American Universities, the Association of University Presses, and the Association of Research Libraries—and the generous support of the Pennsylvania State University. Learn more at the TOME website,... and The Bilingual Muse analyzes the work of seven Russian poets who translated their own poems into English, French, German, or Italian. Investigating the parallel versions of self-translated poetic texts by Vladimir Nabokov, Joseph Brodsky, Andrey Gritsman, Katia Kapovich, Marina Tsvetaeva, Wassily Kandinsky, and Elizaveta Kul’man, Adrian Wanner considers how verbal...
This book is freely available in an open access edition thanks to TOME (Toward an Open Monograph Ecosystem)—a collaboration of the Association of American Universities, the Association of University Presses, and the Association of Research Libraries—and the generous support of the Pennsylvania State University. Learn more at the TOME website,... and This book investigates what change is, according to Aristotle, and how it affects his conception of being. Mark Sentesy argues that change leads Aristotle to develop first-order metaphysical concepts such as matter, potency, actuality, sources of being, and the teleology of emerging things. He shows that Aristotle’s distinctive ontological claim—that...
This file contains the supplementary online material that should accompany the paper "Defining and Measuring the Influences of GIS-Based
Instruction on Students’ STEM-Relevant Reasoning", published in Journal of Geography.
Advances in biosensor engineering have enabled the design of programmable molecular systems to detect a range of pathogens, nucleic acids, and chemicals. Here, we engineer and field-test a biosensor for fluoride, a major groundwater contaminant of global concern. The sensor consists of a cell-free system containing a DNA template that...
From 2008 to 2019, a range of new interactive and immersive digital formats that present new possibilities for musical and artistic expression have become available. In order to begin the work of uncovering what new compositional and experiential possibilities are now possible, this document will examine each format’s core concepts...
The saxophone has long been an instrument at the forefront of new music. Since its invention, supporters of the saxophone have tirelessly pushed to create a repertoire, which has resulted today in an impressive body of work for the yet relatively new instrument. The saxophone has found itself on...
Metabolic conditions affect the developmental tempo of most animal species. Consequently, developmental gene regulatory networks (GRNs) must faithfully adjust their dynamics to a variable time scale. We find evidence that weak repressors of gene expression provide the necessary coupling between GRN output and cellular metabolism. Using a mathematical model that...
Recent advances in cell-free gene expression (CFE) systems have enabled their use for a host of synthetic biology applications, particularly for rapid prototyping of genetic circuits and biosensors. Despite the proliferation of cell-free protein synthesis platforms, the large number of currently existing protocols for making CFE extracts muddles the collective...
In 1936 Modibo Keita, a twenty-year-old student at the distinguished Ecole William Ponty in Gorée, Senegal, wrote his “mémoire de fin d'étude” on Soninke childhood. The original manuscript is held in the archives of French West Africa in Dakar, part of the collection of “cahiers de William Ponty.” This paper... and En 1936 Modibo Keita, un étudiant de vingt ans à l'école distingué William Ponty à Gorée, au Sénégal, a écrit son mémoire de fin d'étude sur l’enfance sarakollé. Le manuscrit original se trouve dans les archives de l'Afrique occidentale française à Dakar, où il fait partie de la collection de...
This study explored the mentoring experiences of doctoral students in science, technology, engineering, and mathematics (STEM) doctoral degree programs at Northwestern University. Research suggests that mentoring relationships support student success in STEM disciplines, and further, that lack of mentorship may be a barrier for female students. A mixed-methods approach employing...
In the Western classical art music tradition, a high level of music performance is achieved at the intersection of a musician's emotional, cognitive, and physical processes. Expert classical musicians have both an aural imagining of the sound they intend to produce and the physical associations of what it feels like...
Perhaps better suited for the mosh pit than the orchestra pit, David Lang’s 1991 tour-de-force for solo bass clarinet, Press Release, is a minimalist marvel. Comprised of seven “groove sections” that evolve in seemingly unpredictable ways, Lang cleverly employs monophony to tell a robust story of motivic and harmonic development....
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...
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...
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...
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.
Gentrification - the process in which higher income (and often younger) households displace lower income residents of a city neighborhood - has been occurring in many urban neighborhoods over the last few decades. This process changes the demographics, and often the essential character, of the neighborhood. As a result, we...
This presentation contains information about the project "The future of transportation... and how we'll pay for it" by Joseph L. Schofer, Department f Civil & Environmental Engineering. The presentation was delivered at the 40th Anniversary Seminar Day at Northwestern University on April 18, 2009.
This study tested a dynamic traffic assignment (DTA) model as a tool for pre-planning strategies for managing major freeway incidents. Incidents of varying scale and duration were modeled in the northern Chicago highway network, and the impacts of incidents and response actions were measured in terms of both lane-mile-hours of...
The mission of the Infrastructure Technology Institute is to develop strategies and tools
to protect and improve the condition, capacity and performance of the nations highway, railroad,
and mass transit infrastructure systems. The Institute does this through the development
and deployment of (1) advanced technologies for structural health monitoring, (2)...
This presentation provides information on the project "Safety Concrete - a Material Designed to Fail" by Jeffrey J. Thomas, Julie Gevrenov, Hamlin Jennings, and Edward O'Neil. The presentation was delivered at the 106th Annual Meeting & Exposition of The American Ceramic Society, Indianapolis, Indiana in 2004.
Few would argue that concrete is an important and useful material: after all, concrete is the backbone of the world’s infrastructure, used in vast amounts to make roads, buildings, bridges, and other structures. But sometimes familiarity breeds contempt. To most people, concrete is simply that boring grey stuff that we...