Physical Sciences and Mathematics Commons^™

Perturbations Of Roots Under Linear Transformations Of Polynomials, Branko Ćurgus, Vania Mascioni

Mathematics Faculty Publications

Let P_n be the complex vector space of all polynomials of degree at most n. We give several characterizations of the linear operators T:P_n→P_n for which there exists a constant C > 0 such that for all nonconstant f∈P_n there exist a root u of f and a root v of Tf with |u−v|≤C. We prove that such perturbations leave the degree unchanged and, for a suitable pairing of the roots of f and Tf, the roots are never displaced by more than a uniform constant independent on f. We show that such "good" operators T …

Existence To Singular Boundary Value Problems With Sign Changing Nonlinearities Using An Approximation Method Approach, Haishen Lu, Donal O'Regan, Ravi P. Agarwal

Mathematics and System Engineering Faculty Publications

This paper studies the existence of solutions to the singular boundary value problem {−u′′=g(t,u)+(h,u),t∈(0,1),u(0)=0=u(1), {−u″=g(t,u)+(h,u),t∈(0,1),u(0)=0=u(1), , where g: (0, 1) × (0, ∞) → ℝ and h: (0, 1) × [0, ∞) → [0, ∞) are continuous. So our nonlinearity may be singular at t = 0, 1 and u = 0 and, moreover, may change sign. The approach is based on an approximation method together with the theory of upper and lower solutions.

Exercise Adherence: Motivational Factors Influencing Exercise Adherence And Fitness Level, Justin Recklau

Undergraduate Theses and Capstone Projects

There are many factors that influence adherence to an exercise program. This research study aimed to determine which factors most effectively ensured adherence, with the hypothesis that no single factor was indicative of exercise adherence as adherence is a dynamic item. The results target exercise professionals to assist them in retaining clientele and encouraging clientele to adhere to exercise programs. A survey was implemented that had clients self-report their stage in the transtheoretical model as well as how strongly they felt about five positive factors to exercise as well as five barriers to exercise. In addition to surveys, body composition, …

Mathematical Methods In Composing Melodies, Thomas Brown

Undergraduate Theses and Capstone Projects

This thesis, “Mathematical Methods in Composing Melodies,” explores the different ways in which mathematics can be used to create music. Some research has been done in this field already. Richard F. Voss and John Clarke used fractals and different frequencies of noise to create music. The Greek composer Iannis Xenakis used Markovian Stochastic trees to create some of his compositions. Explored in this thesis are seven different methods to compose melodies. After compiling the different melodies, they were categorized by different musical periods based on the musical characteristics found in the melody. This thesis differs from other research that deals …

Downstream Pathway Activation In Cultured Hepatocytes Following Treatment With Francisella Tularensis, Nicole Wakefield

Undergraduate Theses and Capstone Projects

Francisella tularensis, the intracellular pathogen that causes tularemia, was investigated to determine how it infects and replicates within mammalian hepatocytes. To date, it has been shown that hepatocytes can be infected by F. tularensis and that this causes considerable change in the protein phosphorylation state of several vital signaling molecules within the host cell. Protein kinase pathways can be mapped as signatures of infection. Hepatocytes tend to be susceptible to infection by F. tularensis, thus stimulating internal signaling. The Francisella strains used were selected with the goal of producing a model that can be used to elucidate the cell signaling …

Population Models In Almost Periodic Environments, Toka Diagana, Saber Elaydi, Abdul-Aziz Yakubu

Mathematics Faculty Research

We establish the basic theory of almost periodic sequences on Ζ+. Dichotomy techniques are then utilized to find sufficient conditions for the existence of a globally attracting almost periodic solution of a semilinear system of difference equations. These existence results are, subsequently, applied to discretely reproducing populations with and without overlapping generations. Furthermore, we access evidence for attenuance and resonance in almost periodically forced population models.

A Review Of Successful Urban Coyote Management Programs Implemented To Prevent Or Reduce Attacks On Humans And Pets In Southern California, Rex O. Baker

Wildlife Damage Management Conference Proceedings

Since the fatal coyote (Canis latrans) attack on a 3-year-old girl in Glendale, California in 1981, government agencies have emphasized developing coyote management programs to increase public safety. This presentation will focus on the success of numerous programs including: small neighborhoods, industrial sites, parks, large city and county-wide projects. Local environmental conditions attracting coyotes, specific problems caused by the coyotes, public reaction, and the role of public relations including public education emphasizing environmental management, will be discussed. Coyote population monitoring regarding behavior patterns, aversive conditioning, and coyote population reduction methods will be reviewed. Trapping remains the most effective …

Assessing The Impact Of Urban Coyote On People And Pets In Austin, Travis County, Texas, Randy O. Farrar

Wildlife Damage Management Conference Proceedings

The City of Austin acquires citizen reports of coyote (Canis latrans) observations or complaints through a toll-free non-emergency 311 telephone call system. The observed coyote behavior or activity reported by constituents is categorized into one of eight behavioral categories that correlate with observed changes in coyote behavior indicating an increasing risk to human safety. The categorical data is used to formulate indices of coyote behavior for accessing and monitoring the relative risk of urban coyotes to human safety over time. Behavioral indices with respect to established management zones are used to prioritize and target areas for preventing or …

Ecology Of Coyotes In Urban Landscapes, Stanley D. Gehrt

Wildlife Damage Management Conference Proceedings

Coyotes (Canis latrans) have become common in many metropolitan areas across the United States. Recent research has focused on the urban ecology of coyotes to better our understanding of how they exist in urbanized landscapes. I summarize findings from a variety of ecological studies of coyotes in or near metropolitan areas, and focus on three areas of coyote ecology: survival rates, home range/activity, and food habits. Most studies have reported relatively high survival rates (annual S = 0.62 - 0.74), with vehicle collisions often a common cause of mortality. Size of coyote home ranges (mean home range sizes …

Coyote Symposium Summary – From The Private Industry Perspective, Tim J. Julien

Wildlife Damage Management Conference Proceedings

As a summary of the session, all I can say is that it has been a big success. I would like to thank Bob Timm for including us in the organization of the coyote symposium, and Art Smith and others in TWS as a whole for getting the private industry involved with the Conference.

The Current Regulatory Environment Of Urban Coyote Control - A Private Wco Perspective, Claude Oleyar

Wildlife Damage Management Conference Proceedings

Social, political, and legal considerations have contributed to an unfavorable regulatory environment for lethal control of urban coyotes (Canis latrans). I analyze and break adown that environment from a Wildlife Control Operator (WCO) perspective. Currently 3 significant factors frame the issue but a 4th could be emerging. First, our hands are tied: I use the situation in Colorado to illustrate the point. Compounding factors include the need for a paradigm shift in how rules are derived, the lag-time factor in agency response to issues, and the tendency toward bureaucracy/over-regulation. Second, human dimensions rule: I critique the downside of …

Response To Coyote Predation On Pets, Dorinda Pulliam

Wildlife Damage Management Conference Proceedings

An urban coyote (Canis latrans) management program was initiated in Austin, Texas in January 2005 to address citizen’s concerns that coyotes were becoming aggressive towards humans. Although preserving public safety is the fundamental foundation for the program, concomitant program objectives have evolved to include addressing citizens’ high levels of concern regarding predation and attacks on house pets. From the citizen’s perspective, it is unacceptable to ignore this issue, and demands for responsiveness have been heavy. The City of Austin’s program has responded to this public concern in two ways. First, coyote conflicts involving pets are included in the …

My Experience: Setting Up An Urban Campaign Or Trapping Project For Urban Coyote Management, Dairen Simpson

Wildlife Damage Management Conference Proceedings

I discuss my personal experience in urban coyote (Canis latrans) management, including the following elements: 1) necessary liaisons and alliances (who are they?); 2) choosing methodology (pluses and minuses of each option); 3) necessity for target selectivity and minimal time at site (knowing when to quit, and ways to know); 4) public contact and on-site education for all concerned; 5) inter-agency contact and communication (remaining allies through the thick of it); 6) media communication; 7) following up actively after incidents or control work; and 8) examples of train wrecks and successes.

Urban Coyotes: A States’ Perspective, Scott Smith

Wildlife Damage Management Conference Proceedings

The author summarizes the information presented and discussed during the Urban Coyote Symposium from a state wildlife agency’s perspective. He notes the need to consider such management challenges not only from a biological, but also from a human dimensions perspective.

Coyotebytes.Org: A New Educational Web Site, Robert M. Timm

Wildlife Damage Management Conference Proceedings

A web site, www.CoyoteBytes.org, has been developed as a tool to provide sciencebased management recommendations to homeowners and municipal officials on methods to reduce conflicts with coyotes (Canis latrans) in urban and suburban areas. Such conflicts include aggression toward or attacks on children and adults; attacks on pet dogs and cats; attacks on hobby animals, such as poultry, sheep, and goats; and damage to drip irrigation systems, garden crops, and to other resources. In addition to providing information, the website allows individuals to upload photos or video clips of urban and suburban coyotes, and to submit firsthand reports …

Missing Cats, Stray Coyotes: One Citizen’S Perspective, Judith C. Webster

Wildlife Damage Management Conference Proceedings

The author explores the issue of urban coyotes and coyote management from a cat owner’s perspective, with specific examples from Vancouver, B.C., Canada. Following a personal encounter with two coyotes in July 2005 that led to the death of a cat, the author has delved into the history of Vancouver’s “Co-existing with Coyotes”, a government-funded program run by a nonprofit ecological society. The policy’s roots in conservation biology, the environmental movement, and the human dimensions branch of wildlife management are documented. The author contends that “Co-existing with Coyotes” puts people and pets at greater risk of attack by its inadequate …

The Quality Of Open Source Production: Zealots And Good Samaritans In The Case Of Wikipedia, Denise Anthony, Sean W. Smith, Tim Williamson

Computer Science Technical Reports

New forms of production based in electronic technology, such as open-source and open-content production, convert private commodities (typically software) into essentially public goods. A number of studies find that, like in other collective goods, incentives for reputation and group identity motivate contributions to open source goods, thereby overcoming the social dilemma inherent in producing such goods. In this paper we examine how contributor motivations affect the quality of contributions to the open-content online encyclopedia Wikipedia. We find that quality is associated with contributor motivations, but in a surprisingly inconsistent way. Registered users' quality increases with more contributions, consistent with the …

2007 Annual Research Symposium Abstract Book, Trinity College

Science Symposia Abstracts

2007 annual volume of abstracts for science research projects conducted by students at Trinity College.

Cs 207: Advanced Office Productivity Ii, Amanda Hood

Computer Science & Engineering Syllabi

This course covers post-advanced microcomputer applications including Microsoft Office Word 2003, Excel 2003, Access 2003, and PowerPoint 2003. Topics include: creating an online form, working with macros and Visual Basic for Applications (VBA), working with a master document, and index and a table of contents, linking an Excel worksheet and charting its data in Word, formula auditing, data validation, and complex problem solving in Excel, importing data into Excel, working with PivotCharts, PivotTables, and trendlines in Excel, creating a PivotTable List, advanced Access report and form techniques, and creating a multi-page form, administering a database system, creating a self-running presentation …

Ceg 210-01: Pc Networking I, Karen Meyer

Computer Science & Engineering Syllabi

Introduction to PC networking hardware, concepts, and technologies. Focus is on LAN administration, hardware and software configuration.

Ceg 220-01: Introduction To C Programming For Engineers, Robert Helt

Computer Science & Engineering Syllabi

This course provides a general introduction to computers as a problem-solving tool using the C programming language. Emphasis is on algorithms and techniques useful to engineers. Topics include data representation, debugging, and program verification. 4 credit hours. Prerequisite: MTR 229 (Calculus I) or EGR 101 (Engineering Mathematics).

Ceg 221-01: Advanced C Programming For Engineers, Robert Helt

Computer Science & Engineering Syllabi

This course introduces advanced constructs, algorithms, and data structures in the C programming language. Emphasis is on problem solving and techniques useful to engineers. Topics include functions, array, pointers, structures as well as sorting algorithms, linked lists, complex numbers, stacks, queues, hash tables, and binary trees. 4 credit hours. Prerequisite: CEG220 (Introduction to C Programming for Engineers).

Ceg 320/520-01: Computer Organization And Assembly Language Programming, Sridhar Ramachandran

Computer Science & Engineering Syllabi

Terminology and understanding of functional organizations and sequential operation of a digital computer. Program structure, and machine and assembly language topics including addressing, stacks, argument passing, arithmetic operations, traps, and input/output. Macros, modularization, linkers, and debuggers are used. Three hours lecture, two hours lab. Prerequisite: CS 242, CEG 260.

Ceg 333-01: Introduction To Unix, Thomas Wischgoll

Computer Science & Engineering Syllabi

By the end of this quarter, you should be able to:

• Describe the basic methodology of UNIX filters, including pipes and redirection of stdin/stdout

• Program simple UNIX utilities at the command-line and shell-script level

• Discuss the advantages and disadvantages of common user interfaces (such as UNIX vs. PC/Windows)

• Discuss the philosophy of UNIX development and the open source movement

• Work comfortably in the UNIX environment

• Edit and manage files and user-level security for UNIX development

• Use standard UNIX development tools for C or C++

Ceg 434/634-01: Concurrent Software Design, Yong Pei

Computer Science & Engineering Syllabi

This course provides an introduction to concurrent program design in the UNIX environment. Classical problems of synchronization, concurrency, and their solutions are examined through course projects and through readings on operating system design.

Ceg 402/602-01: Introduction To Computer Communication, Bin Wang

Computer Science & Engineering Syllabi

This course provides an introduction to basic concepts of communication networks, different types of networks, protocols over different layers, and network applications through lectures, Jabs, homework, and reading on relevant materials. You will

• Understand networking principles, protocols, and technologies.

• Understand some design and performance issues involved in providing a network service.

• Acquire background for supporting e-commerce, e-government, and e-education.

• Gain hands-on experience with programming techniques for network protocols.

• Obtain background for original research in computer networks.

Ceg 433/633-01: Operating Systems, Prabhaker Mateti

Computer Science & Engineering Syllabi

The management of resources in multi-user computer systems. Emphasis is on problems of file-system design, process scheduling, memory allocation, protection, and tools needed for solutions. Course projects use the CIC++ language and include the design of portions of an operating system. 4 credit hours.

Ceg 453/653-01: Embedded Systems, Jack Jean

Computer Science & Engineering Syllabi

No abstract provided.

Ceg 720-01: Computer Architecture I, Soon M. Chung

Computer Science & Engineering Syllabi

Review of sequential computer architecture and study of parallel computers. Topics include memory hierarchy, reduced instruction set computer, pipeline processing, multiprocessing, various parallel computers, interconnection networks, and fault-tolerant computing. 3 hours lecture and 2 hours lab.

Ceg 760-01: Advanced Software Computer Engineering, Thomas C. Hartrum

Computer Science & Engineering Syllabi

This course covers advanced topics in software engineering. Aspects of problem specification, design, verification, and evaluation are discussed. We will focus on design methods, including software patterns and software architecture, plus some advanced topics involving formal methods of software specification or evaluation using software metrics. Students will participate in team projects to apply the methods discussed.