Digital Commons Network^™

Detrital Carbonates In A Sequence Stratigraphic Framework: An Example From The Furongian Slope Environment In The Hot Creek Range Of Central Nevada, Leon Taufani

UNLV Theses, Dissertations, Professional Papers, and Capstones

An integrated sedimentological study of detrital carbonates of the late Cambrian (Furongian) Hales Limestone in central Nevada was conducted in order to model facies distribution and controlling mechanisms of carbonate gravity-flow deposits. Seven closely-spaced sections and numerous traceable short sections were measured to investigate temporal and spatial changes of detrital carbonates within a high-resolution stratigraphic framework supported by biostratigraphic and carbon isotope chemostratigraphic constraints and by key physical surfaces. Polished slabs and thin section petrographic analysis were used to identify micro- and macro-scale textures and diagenesis.

Ten lithofacies are identified from the Hales Limestone. Lateral tracing of these facies reveals …

Special Educators' Perceptions Of Paperwork Demands And Job Efficacy: A Qualitative Study, Deborah K. Imhoff

Dissertations, Masters Theses, Capstones, and Culminating Projects

This study examines the growing evidence that paperwork burdens associated with the jobs of special education teachers are contributing to high attrition rates among these educators. The purpose of this study is to investigate the impact that paperwork demands have on special educators’ decisions to remain in this profession. In examining the literature for the primary reasons of difficulty in retaining special education teachers, several themes emerged: increasing paperwork burdens and administrative tasks as a result of budget cuts and increased class sizes in both special and general education classes, NCLB legal requirements and accountability policies, and time constraints. In-depth …

Planet Formation In Transition Disks: Modeling, Spectroscopy, And Theory, Joseph Liskowsky

All Dissertations

An important field of modern astronomy is the study of planets. Literally for millennia, careful observers of the night sky have tracked these 'wanderers', with their peculiar motions initiating avenues of inquiry not able to elucidated by a study of the stars alone: we have discovered that the planets (as well as Earth) orbit the sun and that the stars are so far away, even their relative positions do not seem to shift perceptibly when Earth's position moves hundreds of millions of miles. With the advent of the telescope, and subsequent improvements upon it over the course of centuries, accelerating …

The Update, December 2012, University Of Northern Iowa. College Of Humanities, Arts And Sciences.

Update

Inside this issue:
-- Having a Field Day: UNI Students Attend Geology Camp in Wyoming
--Contents December 2012
-- Department News
-- Art Students Present Research Papers at Midwest Humanities Conference
-- School of Music Events
-- Challenging Bullying Through Art
-- Alumni Spotlight: James Arns: Physics
-- UNI Forensics Team

Automated Student Code Assessment With Symbolic Execution And Java Pathfinder, Karl Bell

Master's Theses

The assessment of student code is a necessary part of most programming courses. However, many ways of assessing the correctness of student code can be very time-consuming and may be error-prone. This paper presents JSymTester, a tool which uses the symbolic execution framework of the Java PathFinder to find test inputs for student code and uses these inputs to extensively compare its functionality to a reference implementation. This allows for automatic testing of student code, relying only on the reference implementation and the student's own implementation, eliminating the need to manually write tests. This tool was tested on small assignments …

Implementation And Validation Of Fault-Rupture Response Spectrum Analysis Procedure In Csibridge For Bridges Crossing Earthquake Fault Ruptures, Jennifer Evelyn Tures

Master's Theses

This thesis evaluates the application of a simplified analysis procedure as implemented in version 16 of CSiBridge^TM for design of bridges crossing earthquake fault ruptures. The fault-rupture response spectrum analysis (FR-RSA) approximation method has been proved adequate for both straight and curved ordinary bridges, but lacked a comfortable interface to accommodate the method users. Computers and Structure, Inc. has implemented the FR-RSA procedure into CSiBridge^TM, a user-friendly integrated 3-D bridge design software, as an added seismic design feature. By combining the response of the bridge due to the quasi-static displacement from the fault strike-slip rupture and the …

The Effects Of Color Concentrates On The Rheology Of Tint Bases, Doug James Herrick

Master's Theses

ABSTRACT

THE EFFECTS OF COLOR CONCENTRATES ON THE RHEOLOGY OF TINT BASES

Douglas James Herrick

Waterborne coatings are formulated with a number of different ingredients; water, latex polymers, pigments, surfactants, dispersants, defoamers, biocides, coalescing aids, and rheology modifiers or thickeners. Rheology modifiers are necessary in order to improve the physical properties of the coating before, during, and after application to a substrate. There are two kinds of rheology modifiers used in waterborne coatings; associative thickeners and non-associative thickeners. Coatings formulated with associative thickeners are quite sensitive to coating variations; the slightest change in the formulation has profound effects on the …

Controlling Nanoparticle Dispersion For Nanoscopic Self-Assembly, Nathan S. Starkweather

Master's Theses

Nanotechnology is the manipulation of matter and devices on the nanometer scale. Below the critical dimension length of 100nm, materials begin to display vastly different properties than their macro- or micro- scale counterparts. The exotic properties of nanomaterials may trigger the start of a new technological revolution, similar to the electronics revolution of the late 20^th century. Current applications of nanotechnology primarily make use of nanoparticles in bulk, often being made into composites or mixtures. While these materials have fantastic properties, organization of nano and microstructures of nanoparticles may allow the development of novel devices with many unique properties. …

Effects Of Silvicultural Management On Coast Redwood Forest Composition, Density And Structure In Santa Cruz And San Mateo Counties, Michael J. Papa

Master's Theses

The multiple-objective exploratory study investigates effects of various silvicultural management regimes commonly applied to coast redwood (Sequoia sempervirens [D. Don] Endl.) forests in Santa Cruz and San Mateo Counties, California, USA. A temporary forest inventory was installed in 24 harvest origin stands and 4 natural origin stands throughout the study area (sample area = 1189 acres). Data from the systematic sample of 233 one-quarter acre nested cluster plots (sample intensity = 4.9%) rendered overall forest descriptions in terms of species composition, density, and structure. The common forestry measures of trees per acre (TPA), basal area per acre (BA), and …

Leadership And Corporate Governance: Challenges For Bank Regulators, Lucy Surhyel Newman

Economic and Financial Review

Given likely challenges to obtaining legislative approvals on acceptable behaviour as foundational to good corporate governance practices, this paper recognizes the attendant challenges for bank regulators and recommends measures that Nigerian bank regulators can explore in enhancing their effectiveness in advocating for and where necessary, enforcing good corporate governance practices, based on universally defined pillars and elements of corporate governance.

Spatial And Temporal Trends Of Freshwater Mussel Assemblages In The Meramec River Basin, Missouri, Usa, J. E. Hinck, Stephen E. Mcmurray, Andrew D. Roberts, M. Christopher Barnhart, Christopher G. Ingersoll, Ning Wang, Tom Augspurger

College of Natural and Applied Sciences

The Meramec River basin in east-central Missouri has one of the most diverse unionoid mussel faunas in the central United States with .40 species identified. Data were analyzed from historical surveys to test whether diversity and abundance of mussels in the Meramec River basin (Big, Bourbeuse, and Meramec rivers, representing .400 river miles) decreased between 1978 and 1997. We found that over 20 y, species richness and diversity decreased significantly in the Bourbeuse and Meramec rivers but not in the Big River. Most species were found at fewer sites and in lower numbers in 1997 than in 1978. Federally endangered …

The Equilibrium Of Collective Wrongness Or The Effect Of Mindfulness On Advisor Performance After Market Dislocations, Philipp Hensler

Student Scholarship

We conducted, to our knowledge, the first empirical study of mindfulness with respect to financial advisors and their post 2008 financial crisis behavior. Our hypotheses were derived from semi-structured interviews with financial advisors, the results of which provided the framework for modeling advisor behavior in the aftermath of the 2008 financial crisis. Survey responses from 346 U.S. financial advisors revealed surprising insights about the effects of individual and organizational mindfulness on actual and perceived performance levels during the turbulent 2008-2012 period. Results suggest that mindful advisors affiliated with mindful firms deliver better client performance in dynamic markets. Less mindful advisors …

On Numerical Solution For Optimal Allocation Of Investment Funds In Portfolio Selection Problem, Yahaya Abubakar

CBN Journal of Applied Statistics (JAS)

In this article, we present a procedure for obtaining an optimal solution to the Markowitz’s mean-variance portfolio selection problem based on the analytical solution developed in a previous research that lead to the emergence of an important model known as the Black Model. The procedure is well presented, illustrated and validated by a numerical example from real stocks dataset obtainable from a popular European stock market.

On The Development Of Residential Property Price Indices For Nigeria, Olowofeso E. Olorunsola, Abiodun S. Bada, Mohammed A. Bamanga

CBN Journal of Applied Statistics (JAS)

This work focuses on the development of house price indices for Nigeria, and the estimates of the Nigerian Residential Property Price Indices on housing characteristics are presented. Four main methods of index construction were considered, these are hedonic regression, repeat-sales, stratification and central price tendency methods. It was discovered that econometric methods like hedonic and repeat sales were constraints in constructing residential property price indices for Nigeria by the nature of the data available. Hence, the central price tendency and the sale-based stratification methods which are internationally used measures were applied to the available zonal-level dataset from a survey of …

Understanding The Dynamics Of Inflation Volatility In Nigeria: A Garch Perspective, Babatunde S. Omotosho, Sani I. Doguwa

CBN Journal of Applied Statistics (JAS)

The estimation of inflation volatility is important to Central Banks as it guides their policy initiatives for achieving and maintaining price stability. This paper employs three models from the Generalized Autoregressive Conditional Heteroscedasticity (GARCH) family with a view to providing a parsimonious approximation to the dynamics of Nigeria’s inflation volatility between 1996 and 2011. Of the competing models, the asymmetric TGARCH (1,1) provides an appropriate paradigm for explaining the dynamics of headline and core CPI volatilities in Nigeria, while the symmetric GARCH (1,1) was found to be adequate for food CPI. The results are quite revealing. Firstly, model outcomes indicate …

The Relationship Of Positive Behavior Interventions And Supports (Pbis) On Co-Located Urban High Schools Infractions, Suspensions, School Progress Grade And The School Environment, Carolyn M. Tyson

Education Doctoral

The responsibility for school administrators to provide a safe school environment demonstrates institutional accountability under the regulations of the Elementary and Secondary Education Act (ESEA) and the Individuals with Disabilities Education Act (IDEA). Students who violate the safety component of the public school discipline code face suspensions and expulsions. On average, students spend more than 16 million hours a year serving suspensions. This quantitative study examined the effect of Sugai’s three-tiered Positive Behavior Interventions and Supports (PBIS) framework on co-located urban high schools. The study analyzed the relationship of the PBIS framework on the number of infractions, number of suspensions, …

Radiative Double Electron Capture In Collisions Of Fully-Stripped Fluorine Ions With Thin Carbon Foils, Tamer Mohammad Samy Elkafrawy

Dissertations

Radiative double electron capture (RDEC) is a one-step process in ion-atom collisions occurring when two target electrons are captured to a bound state of the projectile simultaneously with the emission of a single photon. The emitted photon has approximately double the energy of the photon emitted due to radiative electron capture (REC), which occurs when a target electron is captured to a projectile bound state with simultaneous emission of a photon. REC and RDEC can be treated as timereversed photoionization (PI) and double photoionization (DPI), respectively, if loosely-bound target electrons are captured. This concept can be formulated with the principle …

Identifying In-School Predictors Of Postsecondary Success For Students With Hearing Impairments, Jennifer Lynn Coyle

Dissertations

Students with hearing impairments are historically a low incidence disability group. Gaps in knowledge of evidence-based practices for implementing transition education and services for this population is limited, primarily as a function of the size of the population; they have not received much attention from the educational research community. Students with hearing impairments often experience more successful outcomes in postsecondary education and employment than other disability groups, but less than those without a disability; however, we know little of the specific educational experiences associated with such success. In contrast, a body of work on predictors of post-school success for students …

Rule-Based Precise Localization Services In Mobile Environments, Mohammed Elbes

Dissertations

In recent years there has been great interest in the positioning of people and assets in indoor and outdoor environments. Many systems were constructed to accomplish this. The application of these systems depends on the environment and the precision required for localization. The Global Positioning System (GPS) cannot be used for a precise indoor localization due to the attenuation and scattering of the signals. For indoor environments, other technologies like Wireless LAN, laser, camera images and motion sensors are used in precise localization. GPS can be used in outdoor environments but if localization accuracy is a critical requirement, other technologies …

Using Box-Jenkins Modeling Techniques To Forecast Future Disease Burden And Identify Disease Aberrations In Public Health Surveillance Report, Larry C. Garrett

Dissertations

The analysis of public health surveillance data to identify departures from historical patterns of disease is required to facilitate the timely identification of potential outbreaks. Using the Box-Jenkins forecasting model, this study examines the potential to predict future disease burden based upon the historical record within local public health jurisdictions. Box-Jenkins forecasting was developed as a direct result of forecast problems in the business, economic, and control-engineering applications, yet it has not been systematically examined for use with public heath surveillance data.

Box-Jenkins forecast models are constructed by stratifying 84,029 disease reports from the State of Utah by year (n …

Boolean And Profinite Loops, Benjamin Andrew Phillips

Dissertations

A Quasigroup G consists of a set G together with a binary operation ∗ : G × G → G such that, for any elements a, b ∈ G there are unique solutions to the equations a ∗ x = b and y ∗ a = b within G. A loop is a quasigroup which also contains a 2-sided identity element. More heuristically, loops are essentially non-associative groups. However, without an associative binary operation, some of the familiar properties found in groups, such as 2-sided inverse, need not be present in loops.

The study of quasigroups and loops emerges …

The Relationship Between Extended Learning Time (Elt) And Ela Assessment Scores Of Socio-Economically Disadvantaged Fourth Grade Students In New York State’S Big Five Cities, Catalina Castillo

Education Doctoral

Since the concept of extended or expanded learning time (ELT) in its modern-day form began to develop approximately 50 years ago, there has been substantial controversy as to whether the application of ELT in a U.S. context could achieve the desired result of improved academic outcomes. Numerous empirical studies during the past 25 years have at least hinted that this could be the case, especially with regard to disadvantaged populations, but all of these studies have been criticized as being flawed in one respect or another, thus limiting their value with regard to demonstrating the efficacy of ELT. The purpose …

K-Total Product Cordial Labelling Of Graphs, R. Ponraj, M. Sundaram, M. Sivakumar

Applications and Applied Mathematics: An International Journal (AAM)

In this paper we introduce the k-Total Product cordial labelling of graphs. Also we investigate the 3-Total Product cordial labelling behaviour of some standard graphs.

Annual Financial Report 2012, University Of Montana--Missoula

University of Montana Annual Financial Reports, 1918-2012

University of Montana annual financial report for fiscal year ending June 30, 2012.

Activation Of Alcohols Toward Nucleophilic Substitution: Conversion Of Alcohols To Alkyl Halides, Amani Atiyalla Abdugadar

Master's Theses

The conversion of alcohols into alkyl halides is one of the most important reactions in organic chemistry. Development of new methodology is still desirable in academic research. Unfortunately, the hydroxyl group of the alcohol is relatively difficult to replace under normal conditions. That necessitates the conversion of alcohols to a more activated functionality before nucleophilic substitution becomes viable. Under vigorous conditions, the replacement is straightforward. Procedures for the generation of halides from alcohols have been extensively examined, e.g., using HX or Mitsunobu inversion. However, these methods require time, strong acid, or catalysis to proceed. These classical methods suffer from issues …

The Process Of Keeping Creative Expression And Artistic Freedom Unencumbered And Uncensored: A Study Of Student Actors In The Musical [Title Of Show], Mathew B. Hagmeier

Master's Theses

Creativity and the ability to freely devise and express are human capacities recognized to be highly important in today’s world. Yet, while many champion these qualities, modern society continually makes achieving them a laborious process, riddled with the pressure of success and commercial marketability. Two years of researching and devising educational methodologies surrounding the use of theatre as a tool for the development of students’ unbridled creativity, expression, and self-efficacy have led me to ask the following questions of this process: Can students achieve authentic creative self-expression inside the confines of portraying a pre-written character? How does one freely express …

Public Or Private University - New Legislation Caps Veterans' Educational Choices That Could Cost Less., Whitney Howe

The Scholar: St. Mary's Law Review on Race and Social Justice

Abstract Forthcoming.

Transient Voltage Stability Enhancement Using Fuzzy Logic Controller Techniques, Majli Nema, Abdullah Yaseen Abbas

Iraqi Journal of Computers, Communications, Control and Systems Engineering

This paper discusses the transient Voltage stability of a synchronous generator at its bus in a power system with a detailed transient modeling for the generator after being subjected to a three phase fault, and designing a Takagi-Sugeno first order fuzzy logic controller with center of area defuzzification algorithm as a fuzzy logic controller based exciter to stabilize the terminal Voltage and to damp its oscillations so as to keep the generator under balanced working conditions. The proposed exciter can be easily modified by changing the steady state field Voltage value to be applied to any other synchronous generator. This …

Geochemical Constraints On Groundwater Recharge In The Royal Slope Area, Grant County, Washington, Zoe Danielle Weis

All Master's Theses

Groundwater, the primary source for potable water in the Columbia Plateau, has experienced significant declines over the past 25 years. Groundwater geochemistry and multivariable statistics were employed to identify and characterize the hydrofacies present, constrain recharge sources, and assess mixing of groundwater in the Royal Slope area of the Columbia Plateau. Geochemical analyses for major ions, stable isotopes, and radiogenic isotopes (14C and tritium) for age dating were performed on groundwater samples collected in 2010 from 24 wells in the study area. The results confirmed that the groundwater evolution in the study area follows the typical Columbia River Basalt Group …

Development A 3-D Mathematical Model For Network Topology Based On Graph Theory, Laith Jasim

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Communication network efficiency depends upon many factors among which is the “Topology” which makes topology optimization an important Issue to care for. One important thing in optimization problems is the formulation of objective functions. For the case of topology design it is not a straightforward matter to develop an efficient topology model as well as objective functions to be used in the optimization process. An effective unconventional approach is needed. This paper is concerned with enhancing the already existing set of formulas, relating topology and topology properties modeling and topology design objectives, by proposing a 3-dimension way of modeling that …