Digital Commons Network^™

From Double Lie Groupoids To Local Lie 2-Groupoids, Rajan Amit Mehta, Xiang Tang

Mathematics Sciences: Faculty Publications

We apply the bar construction to the nerve of a double Lie groupoid to obtain a local Lie 2-groupoid. As an application, we recover Haefliger's fundamental groupoid from the fundamental double groupoid of a Lie groupoid. In the case of a symplectic double groupoid, we study the induced closed 2-form on the associated local Lie 2-groupoid, which leads us to propose a definition of a symplectic 2-groupoid.

Broader Questions And A Bigger Toolbox:A Problem-Centered And Student-Centered Approach To Teaching Pluralist Economics, Julie A. Nelson

Economics Faculty Publication Series

This essay discusses a "broader questions and bigger toolbox" approach to teaching pluralist economics. This approach has three central characteristics. First, economics is defined so as to encompass a broad set of (provisioning) concerns. Second, emphasis is placed on contemporary real-world issues, institutions, and current events, rather than on debates in the history of economic thought. Third, a variety of concepts and theories are introduced, all of which are treated as partial and fallible--useful in some (perhaps very limited) situations while not so useful in others. Possible reasons an instructor might want to adopt this approach, and examples of use …

Facebook Addiction: Factors Influencing An Individual's Addiction, Erica Sherman

College of Management Honors Theses

Prior research has proved that an individual could be addicted to the Internet in general, but no research has been done specifically to social networking sites such as Facebook. This study investigates how factors such as personality, gender, procrastination, boredom and ones values may affect the amount of time they spend on Facebook, further concluding that they are either overly obsessive or not about the usage thereof. Further, this study tests whether those same factors influence and individuals likelihood of facing Facebook withdrawal or Facebook devotion. Prior research was conducted using scholarly articles that focused on personality types and Internet …

Educators' Perceptions Of Preparation And Practice For Teaching Algebra I To Students With Mathematical Learning Disabilities, Sararose Devore Lynch

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this mixed methods study was to describe the current state of Algebra I instruction for students with mathematical learning disabilities (MLD) in West Virginia and teachers. preparation for this practice, as perceived by teachers. Further, this study examined the extent teachers. instructional practices for teaching students with MLD Algebra I aligned with best practices recommended in the research literature. Fifty-seven educators from West Virginia who taught Algebra I to students with Mathematical Learning Disabilities completed the Survey of Instructional Practices Implemented by Algebra I General and Special Educators When Educating Students with a MLD. In addition, a …

Reputation Management: A Qualitative Analysis Of The Effective Use Of Reputation Management Techniques Applied To Personal Reputations During A Crisis, Joseph A. Saulen

Graduate Theses, Dissertations, and Problem Reports (ETD)

Understanding the concept of image has been a cornerstone of public relations since its professional beginnings in the early 20th century. However, practitioners and scholars have introduced crisis management and reputation management techniques into the repertoire of public relations relatively recently. This research study analyzes the concepts of reputation management and image and their applications in respect to people during a crisis. It uses content analysis to examine John Edwards and Eliot Spitzer; and the resultant tone of media coverage to ascertain the effectiveness of their reputation management strategies.

Globalization Of Cultural Heritage: Issues, Impacts, And Inevitable Challenges For Nigeria, Mercy U. Nwegbu, Cyril C. Eze, Brendan E. Asogwa

Library Philosophy and Practice (e-journal)

Culture is the totality of learned, socially transmitted customs, knowledge, material objects and behaviour. It includes the ideas, value, customs and artefacts of a group of people (Schaefer, 2002). Culture is a pattern of human activities and the symbols that give these activities significance. It is what people eat, how they dress, beliefs they hold and activities they engage in. It is the totality of the way of life evolved by a people in their attempts to meet the challenges of living in their environment, which gives order and meaning to their social, political, economic, aesthetic and religious norms and …

From Primordial Soup To Platform-Based Competition: Exploring The Emergence Of Products, Systems, And Platforms, C. Jason Woodard, Eric K. Clemons

Research Collection School Of Computing and Information Systems

We use an agent-based NK model to explore the conditions under which standard platforms emerge among competing products. Our findings were inconclusive. We find that the usual Darwinian conditions needed for the emergence of complexity are sufficient to yield a limited reliance upon platforms with a core of common components, simply because evolution causes the population to converge on a set of products that contain combinations that "work well," yielding what we call "coincidental platform emergence." Economies of scale yield more use of common components, or "production platform emergence." Positive participation externalities initially induce the highest degree of platform emergence …

Detection-Assisted Object Tracking By Mobile Cameras, Li He

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

Tracking-by-detection is a class of new tracking approaches that utilizes recent development of object detection algorithms. This type of approach performs object detection for each frame and uses data association algorithms to associate new observations to existing targets. Inspired by the core idea of the tracking-by-detection framework, we propose a new framework called detection-assisted tracking where object detection algorithm provides help to the tracking algorithm when such help is necessary; thus object detection, a very time consuming task, is performed only when needed. The proposed framework is also able to handle complicated scenarios where cameras are allowed to move, and …

A 2-D Processor Array For Massively Parallel Image Processing, Anantha Krishna Nelliparthi

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

The concept of introducing image processing logic within the spatial gaps of an array of photodiodes is the key factor behind the presented work. A two-dimensional massively parallel image processing paradigm based on 8X8 pixel neighborhood digital processors has been designed. A low complexity processor array architecture along with its instruction set has been designed and fully verified on a FPGA platform. Various image processing tests have been run on the FPGA platform to demonstrate the functionality of a design that uses 12 parallel processors. The test results indicate that the architecture is scalable to support high frame rates while …

A Quantitative Performance Analysis Of 2.5 Ghz And 3.65 Ghz Mobile Wimax, Pradhumna L. Shrestha

Department of Computer Electronics and Engineering: Dissertations, Theses, and Student Research

Mobile WiMAX has emerged as a prime contender for the de-facto ITU’s 4G standard. It provides high data rate with large coverage and vehicular mobility support. It has been, and is being, widely deployed in diverse applications like video streaming, broadcasting and data service. The FCC (Federal Communications Commission) issues licenses to operate Mobile WiMAX services in several spectrums, among which 2.5 GHz and 3.65 GHz are the most common. Because the 2.5 GHz spectrum suffers the least propagation losses, it has been widely applied commercially. For this reason, academic and industrial researchers have given it particular attention. However, in …

A Novel Telecommunications-Based Approach To Mathematical Modeling Of Hiv Infection, Aaron T. Sharp

Department of Computer Electronics and Engineering: Dissertations, Theses, and Student Research

It is well known that biological systems utilize communication in some form, one prolific example of this is the propagation of HIV (Human Immunodeficiency Virus) in the human body. By modeling HIV infection as a communication system, we hope to gain a unique insight into HIV and biological communication systems in general. Such a model would provide researchers a platform for experimenting and simulating various biological communication systems. We have previously developed a layered communication protocol for interpreting biological communication systems using telecommunications paradigms and will apply said model to HIV proliferation. We will also demonstrate the effectiveness of the …

Experiential Interior Design: Branding Entertainment And Nightlife For The Postmodern Young Urban Professional, Niccole S. Skomal

Architecture Masters of Science Program: Theses

Past study on Interior Design has been primarily looked at through the lenses of aesthetics and functionality. Only recently have scholars begun to see the influence marketing, in the form of branding, can have on the Interior Design process in targeting specific lifestyle groups. The purpose of this research is to understand the fabric of the postmodern Young Urban Professional lifestyle as a marketing tool for branding and designing services in the form of entertainment and nightlife. With an increasing lack of community and social connectedness in today’s postmodern society, Young Urban Professionals tend to consume entertainment and nightlife as …

Corporate Office Employee Analysis: Transformation From Closed Office Layout To Open Floor Plan Environment, Stephanie J. Fanger

Architecture Masters of Science Program: Theses

The office workplace within the United States has undergone monumental changes in the past century. The Environmental Protection Agency (EPA) has cited that Americans spend an average of 90 percent of their time indoors. As human beings can often spend a majority of the hours in the day at their workplace, more so than their home, it is important to understand the effects of the built environment on the American office employee. In order to stay current with modern times, General Dynamics, a corporation located in Scottsdale, Arizona implemented a renovation of interior space. This thesis examines the transformation from …

Design, Analysis, And Testing Of In Vivo Surgical Robots, Tyler David Wortman

Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research

Advances in technology have shaped the history of surgical procedures. Recent developments have allowed surgical procedures to become less invasive than traditional open procedures. The transition to Minimally Invasive Surgery (MIS) has resulted in decreased recovery times, improved cosmetic results, and reduced costs. For these reasons, there is interest in further reducing the invasiveness of surgical procedures by accessing the abdominal cavity through a single incision, such as with Laparoendoscopic Single-Site (LESS) surgery. Added complexities, such as unintuitive controls and limited dexterity, prevent the widespread adoption of LESS for complex surgical procedures. Multi-functional in vivo surgical robots have been designed …

Use Of Constraint Solving For Testing Software Product Lines, Jiangfan Shi

School of Computing: Dissertations, Theses, and Student Research

A new software engineering methodology, software product line (SPL) engineering, has been increasingly studied in academia and adopted inindustry in the past decade. It allows the delivery of similar, but customized, software products to customers in the same domain within a short timeperiod. Software product line engineering produces an SPL by defining feature commonality and variability, and is supported by a well-managed asset base. SPL engineering can improve productivity from three to ten times, however, we require more efficient testing methods, so that we canensure the correctness of SPLs with the same resource allocation percentage as in the traditional software …

Herpetofaunal Diversity At Yankee Hill State Lake And Wildlife Management Area, Lancaster County, Nebraska, Shelby Klima

Department of Environmental Studies: Undergraduate Student Theses

A survey for amphibians and reptiles was conducted in March through October 2011 at Yankee Hill Wildlife Management Area in Lancaster County, Nebraska. The survey was conducted using several different techniques including: visual and auditory encounters, artificial and natural cover objects, aquatic trappings and road surveys. A total of 145 individuals representing 12 species were identified including seven reptiles and five amphibians. A total of 48% of the species that may potentially occur on the site were encountered, all of which are common, widely distributed generalist species. Neither Graham’s Crayfish Snake nor the Massasauga, both target species for this survey, …

A Health Impact Assessment Of Mixed Use Redevelopment Nodes And Corridors In Lincoln, Nebraska, Katie Clear

Department of Environmental Studies: Undergraduate Student Theses

Obesity is a growing threat to America’s health. The national rate of obesity is 34% (Health Consequences, 2011), and Lincoln, Nebraska is not far behind that trend at 20.7% (BRFSS, 2011). Increasing physical activity is one way to reduce weight gain, (Edwards, 2008) and further studies show that small changes to the built environment can induce people to use alternative and more active forms of transportation such as biking, walking, and public transportation (Edwards, 2008; Zheng, 2008). The 2040 Comprehensive Plan for Lincoln, NE includes language to create a more walkable community. The proposal is to redevelop existing areas within …

Economic Analysis Of Continuous Monitoring Of Commercial Truck Tire Pressure Using Tire Pressure Monitoring Systems (Tpms) And Rfid Technologies, Afolabi A. Ogunwemimo

Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research

The trucking industry is a major contributor to the US economy. By providing the essential services of transportation and distribution needed in today’s dynamic industry, the transportation industry has evolved into an integral player in various supply chains. The trucking industry is the largest transportation provider for other industries and employs 10.1 million workers in the United States (ATA, 2003).

This research is an analysis of the economic impact of maintaining proper air pressure in the tires of commercial trucks. Various studies have been carried out on understanding the relationship between tire pressure and fuel consumption (National Research Council, 2006). …

Avian Species Abundance In Response To Recreational Trail Use, Carrie A. Wencel

Department of Environmental Studies: Undergraduate Student Theses

Studies have indicated that non-consumptive outdoor recreation may affect wildlife. Thus, as the nation increases interest in outdoor recreation, data suggests the effect on wildlife will also increase. Previous studies indicate that as disturbance to wildlife increases, both avian species richness will decrease. Knowing how to anticipate effects on native species when planning and managing recreational areas is important in order to both provide for human desires and ensure the least impact to local species diversity.

The goal of this project was to observe and compare avian species richness and diversity between selected trail sites within Shevlin Park, Bend, Oregon …

Empathy-Based Conservation: An Interdisciplinary Approach To Conservation Policy And Decision-Making, Kaitlyn Delashmutt

Department of Environmental Studies: Undergraduate Student Theses

In the late 20^th century, neuroscientists in Italy discovered a neuron in the brain capable of mentally mimicking the emotions derived from the actions of others (Rizzolatti and Craighero, 2004). It is the process that makes your elbow ache when someone else knocks their elbow on the counter or the uncontrollable smile that creeps up when someone smiles at you. No questions asked, people intuitively sense what others are feeling. The old school of thought was that humans deduced through logic and reason the actions of others and interpreted the emotions through a rational process (Carew et al, 2008). …

The Urban Fabric Of The Great Plains, Andrew Becker

Department of Environmental Studies: Undergraduate Student Theses

To most Americans the Great Plains region of North America is mysterious place. There are disagreements when defining its limits, and some people just refer to it as the Midwest. The Great Plains has been a place under an ocean, a place under glaciers, and a place on fire. It was once dubbed “the Great American Desert,” but is now known for its agricultural viability. The Great Plains sparks imagination because it is so massive and was one of the final frontiers for Euro-American settlement. The Great Plains is seen as a rural place but the majority of the region’s …

Politics In The Non-Political Branch, Justin L. Swanson

College of Journalism and Mass Communications: Professional Projects

Across the country there exists a patchwork of legal systems by which judges are appointed retained. In some states, like Illinois, it is a fully political process where judges actively campaign for election to the bench. But a majority of states, including Nebraska, have adopted the Merit Selection System, which attempts to remove politics from these processes. Nevertheless, politics can enter into the retention votes. And when they do, it can be extremely difficult for judges to overcome.

Location Cheating: A Security Challenge To Location-Based Social Network Services, Mai Ren

School of Computing: Dissertations, Theses, and Student Research

Location-based mobile social network services such as Foursquare and Gowalla have grown exponentially over the past several years. These location-based services utilize the geographical position to enrich user experiences in a variety of contexts, including location-based searching and location-based mobile advertising. To attract more users, the location-based mobile social network services provide real-world rewards to the user, when a user checks in at a certain venue or location. This gives incentives for users to cheat on their locations.

In this thesis, we investigate the threat of location cheating attacks, find the root cause of the vulnerability, and outline the possible …

Mariners All Access: An Inside Look At The Role Of A Producer At Root SportsTm, Carrie S. Tachiyama

College of Journalism and Mass Communications: Theses

The experience of producing a full episode and several segments of Mariners All Access provides an in-depth look at the inner workings of a production at a regional sports network. Examining the role of the producer, what lessons are learned and discovering more effective ways to produce Mariners All Access.

The producer in this instance is a manager of a small staff, a researcher and a creator of storylines. From previous experience an assumption is made that sports networks and news stations operate the same way. After the author’s experience in producing Mariners All Access it is shown this …

Print Vs. Online Journalism: Are Believability And Accuracy Affected By Where Readers Find Information?, Burton Speakman

College of Journalism and Mass Communications: Theses

Believability and accuracy of print and online news is studied via the comments of newspaper readers of a small Texas community. The readers of the Normangee Star were chosen to be the survey recipients to learn if readers in a small community had the same attitude about their local newspaper that national surveys have indicated exist about newspapers in general. The expectation was that those who read more news online would consider their local paper to be less believable and accurate than those who read little to no news online. Surveys were mailed to 200 subscribers of the Star, …

Identifying Barriers And Incentives Related To Attending The Performing Arts: An Examination Of First Year College Students, Laura J. Sweet

College of Journalism and Mass Communications: Theses

Young adults entering their first year of academic study beyond high school face seemingly limitless opportunities. For the first time, they’re on their own: deciding everything from when to eat to where to study and what to do in their free time. Campuses are rich with possibilities. From official student organizations and clubs, to impromptu pizza parties and dorm floor trivia contests, daily decisions create the experiences that shape the life to come. On many large campuses, alongside academic buildings are art galleries and performance spaces. Research shows that early exposures to the arts lead to increased engagement during student …

Greeted Like Liberators: Media, Metaphor, And Myth In The Rhetorical Construction Of Operation Iraqi Freedom, Charles Franklin Bisbee

College of Journalism and Mass Communications: Theses

Journalistic performance in covering the presidential argument to undertake Operation Iraqi Freedom drew almost instantaneous criticism from within the profession. The general line of criticism held that journalists failed a “watchdog” standard of applying scrutiny to the rhetoric of public officials in terms of fact-based and legitimate argumentation. Alleged causes, in the case of Operation Iraqi Freedom, are usually rooted in al-Qaeda’s September 11, 2001 terroristic attacks inside the United States. Some critics submitted that post-attack journalistic “patriotism” granted President George W. Bush an overly-generous benefit of doubt in framing an American response. Others faulted journalistic norms. But the criticism …

Exploratory Case Study: How The Inclusion Of Nature In The Design Of Learning Environments Affects Learning Among Children, Cheryl Knodel

Interior Design Program: Student Creative Activity

The theoretical framework of Stephen R. Kellert linking nature and the built environment was used as the basis for this research. This case study research was conducted to describe the effect nature had on learning among children 3 to 6 years of age attending two north central Florida Montessori learning environments. Methods were examined by which this phenomenon might be studied in more detail in order to: (a) provide verification of the independent and dependent variables, (b) establish the empirical measure of learning outcomes, and (c) provide the refinement of the variable learning outcomes as influenced by nature.

A qualitative …

Four Perspectives On Architectural Strategy, C. Jason Woodard, Joel West

Research Collection School Of Computing and Information Systems

A recurring theme in the literature on technology and organizations is the concept of mirroring, which posits a duality between technological and organizational design decisions. In this paper we highlight a second, orthogonal duality between components and interfaces: designers of both products and organizations must decide what information to hide within component boundaries and what to expose to other designers. Although the component-interface duality appears in many settings, it presents especially vexing strategic challenges in the design and production of complex digital artifacts. We present a typology of four interlinked perspectives on these kinds of strategic design problems, and discuss …

Case Study On Using A Programming Practice Tool For Evaluating University Applicants, Shannon Christopher Boesch, Kevin Steppe

Research Collection School Of Computing and Information Systems

We used a programming practice tool to test basic programming skills of prospective students. A live competition was used to test those skills. Students who did well were asked for further interviews. Most students had no prior background and reported learning the basics of two programming languages within two weeks of self-study.