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Distribution And Geochemical Speciation Of Pb, Cd, Zn, Cr, And Cu In Sediments Of Major Dams In Uae, Mona Rashed Musabah Al-Alili

Theses

Assessment of availability and mobility is required to predict the behavior of heavy metals in dam's sediments, which hold up rainwater and make use of them. Therefore, a total number of ninety-three of sediments samples collected from the major dams AI-Shuweib, AI-Bih, AI-Tawiyeen and Ham dam were analyzed by several sedimentological and geochemical analyses procedures for Cu, Cd, Cr, Pb, Zn, AI, and Fe. The samples were investigated for mineralogy using X-ray diffraction analyses for non-clay and clay fractions. ICP-OES and Atomic Absorption Spectrophotometer (AAS) were used to measure the concentration of heavy metals. The statistical treatments and graphical presentations …

A Circuit Model For Esd Performance Analysis Of Printed Circuit Boards, Byong-Su Seol, Jong-Sung Lee, Jae-Deok Lim, Hyungseok Lee, Harkbyeong Park, Argha Nandy, David Pommerenke

Electrical and Computer Engineering Faculty Research & Creative Works

This paper provides a SPICE-compatible circuit model for characterizing electrostatic discharge (ESD) clamping performance of protection devices mounted on printed circuit boards (PCBs). An equivalent circuit model for a commercial ESD generator is introduced and a simulation methodology of an ESD protection device with non-linear resistance characteristic using voltage controlled current source is described. These models combined to create a full circuit model with a PCB model in a SPICE-like circuit simulator. Comparison results between the simulated and measured are presented to verify the accuracy of the proposed circuit model. A trade-off analysis between the ESD clamping performance and signal …

The Link, Vol 2, No. 12, December 2008, Illinois State University, Center For Teaching, Learning, And Technology

The Link

Newsletter for the Illinois State University Center for Teaching, Learning, and Technology

No Margin For Error: A Study Of Two Women Balancing Motherhood And Ph.D. Studies, Robin S. Grenier, Morag C. Burke

The Qualitative Report

This cogenerative ethnography explored the lived experiences of two graduate students balancing Ph.D. studies and motherhood through McClusky’s (1963) Theory of Margi n. Specifically, we asked ourselves: What impact does pregnancy have on personal and academic selves and how are multiple roles and responsibilities managed? Through an analysis of dialogues, artifacts, conceptual maps, and narratives, examples of internal and external lo ad revealed the dynamic nature of the female experiences in graduate school. Excerpts from the data showed how roles, relationships, and experiences are characterized and how similar or different those example s were, given individual context. Implications of this …

A Simple, Anatomically Based Correction To The Conventional Ankle Joint Center, Dustin A. Bruening, Ashlie N. Crewe, Frank L. Buczek

Faculty Publications

Background

Conventional motion analysis studies define the ankle joint center as the midpoint between the most medial and lateral aspects of the malleoli, yet research points toward a more distal joint center location. The purpose of this study was to develop and evaluate an anatomically based correction that would move the conventional ankle joint center to a more accurate location.

Methods

Lower extremity radiographs from 30 pediatric patients were analyzed retrospectively. An offset between the conventional and more accurate ankle joint centers was measured and correlated to other common anatomical measures based on conventional skin mounted marker positions. The best …

Communicative Functions Of Young Children's Visual Art, Clover Simms Wright

Graduate Theses, Dissertations, and Problem Reports (ETD)

How can young children use visual art to communicate? This study used Halliday's communicative functions of language (Halliday, 1973), to frame the answer to this question; Halliday's categories of communicative functions are: instrumental, regulatory, interactional, personal, heuristic, imaginative, and representational/informative. Five children, between the ages of three and five, were observed and interviewed as they voluntarily created visual art over a six-week period. In that time period, each of the seven functions of language was demonstrated collectively by the participants. The research was conducted by an educator employed in the early childhood setting. Qualitatively, this study confirmed that young children …

The Möbius Geometry Of Hypersurfaces, Michael Bolt

University Faculty Publications and Creative Works

No abstract provided.

Atomistic-Based Finite Element Simulation Of Carbon Nanotubes, Yang Yang

Dissertations

Since first found in the form of multi-walled carbon nanotubes (MWNTs) by Iijima(1991), carbon nanotube (CNT) for its outstanding and unique properties have gained overwhelming attentions from across the spectrum of the science and engineering fields. CNTs are structurally perfect, small size, low density, high stiffness, high strength (Qian et al., 2002), and their electronic properties depend on the particular distortion as well as the initial tube diameter and chirality, ranging from narrow-gap or moderate-gap semiconducting to metallic (Pantano et al., 2004b), which can be utilized in nanoscale sensors and devices. These appealing characteristics provide strong drives for the possible …

The Evolution Of Thermal Reaction Norms For Growth Rate: Is Hotter Better?, Dee Ann Asbury

All-Inclusive List of Electronic Theses and Dissertations

Several researchers have proposed that warm-adapted organisms should outperform cold-adapted organisms because of the greater rates ofreactions at higher temperatures. This hypothesis-commonly referred to as 'hotter is better'-predicts that maximal performance should increase as the thermal optimum increases. I used published thermal reaction norms for 23 species of fish to test the hypothesis that hotter is better for individual growth rate. These studies reported a wide range of thermal optima among species. Using a phylogenetic hypothesis derived from multiple published sources, I calculated independent contrasts of thermal optima and maximal growth rates. The maximal growth rate appears unrelated to the …

2008 December, Office Of Communications & Marketing, Morehead State University.

Morehead State Press Release Archive, 1961 to the Present

Press releases for December of 2008.

It's Time To Face The Music: Singing The Praises Of Popular Music In Today's Curriculum, Shannon Flatt Dasher

College of Graduate Studies: Theses & Dissertations

This study explored the possibility of incorporating popular music into the curriculum in order to increase student motivation in a time of standardization. As a classroom teacher, I have witnessed students, time after time become uninterested in the present curriculum. I was curious to find out if by incorporating popular music into the lessons of teachers, students would be more apt to learn in school. Cultural inquiry was used as the main method to guide the collection and analysis of the information from the participants through a cultural studies theoretical framework.

Approximation And Integration On Compact Subsets Of Euclidean Space, Rochelle E. Randall

College of Graduate Studies: Theses & Dissertations

This thesis deals with approximation of real valued functions. It considers interpolation and numerical integration of functions. It also looks at error and precision, the Weierstrass Theorem and Taylors Theorem. In addition, spherical harmonics, the Laplacian, Hilbert spaces and linear projections are considered with respect to the unit sphere. An example of distributing points equally on a sphere is illustrated and a covering theorem for a unit sphere is proved.

Neural Networks As A Discriminant Purposes, Tahir Reisan Dikheel

Journal of Economics and Administrative Sciences

Discriminant between groups is one of the common procedures because of its ability to analyze many practical phenomena, and there are several methods can be used for this purpose, such as linear and quadratic discriminant functions. recently, neural networks is used as a tool to distinguish between groups. In this paper the simulation is used to compare neural networks and classical method for classify observations to group that is belong to, in case of some variables that don’t follow the normal distribution. we use the proportion of number of misclassification observations to the all observations as a criterion of comparison.

Managerial Ownership, Corporate Monitoring And Audit Pricing, Soongsoo Han, Julia Higgs, Tony Kang

Research Collection School Of Accountancy

We study whether managerial ownership and corporate monitoring (board quality and analyst coverage) relate to audit pricing. Managerial ownership has been identified as a fraud risk factor under SAS 99. However, the role of ownership is not clear. Under an alignment view, high levels of stock ownership align management with shareholders. Under an entrenchment view, high levels of ownership may motivate management to be self interested. Corporate monitoring, as measured by analyst coverage and overall board quality (Gomper’s index), are associated with information quality. Audit pricing will be affected to the extent that auditors perceive monitoring as being relevant to …

Ambiguous Optimistic Fair Exchange, Qiong Huang, Guomin Yang, Duncan S. Wong, Willy Susilo

Research Collection School Of Computing and Information Systems

Optimistic fair exchange (OFE) is a protocol for solving the problem of exchanging items or services in a fair manner between two parties, a signer and a verifier, with the help of an arbitrator which is called in only when a dispute happens between the two parties. In almost all the previous work on OFE, after obtaining a partial signature from the signer, the verifier can present it to others and show that the signer has indeed committed itself to something corresponding to the partial signature even prior to the completion of the transaction. In some scenarios, this capability given …

Earmstrong, Armstrong Atlantic State University

Armstrong News & Publications: e-Armstrong Newsletter (Archived)

No abstract provided.

Strategies Used In Implementing The Multiple Eligibility Criteria Rule In Georgia Elementary Schools To Increase Representation Of Black American Students In Gifted Education, Emily Byas Felton

College of Graduate Studies: Theses & Dissertations

This study focused on the strategies used in implementing the multiple eligibility criteria rule in Georgia elementary schools to increase representation of Black American students in gifted education. The framework for this qualitative research project used a Critical Race Theory (CRT) lens while employing ethnographic study methods. The instruments for this study incorporated interviews, focus group discussion, and observations. The analysis of the research from this study found that multiple identification standards such as, motivation, creativity, class performance, love of learning, interest, as well as academics is beneficial when identifying Black American students. Data from this study suggested professional development …

Lived Experiences Of Selected African-American Male Elementary Teachers In Georgia, Chequita Franchon Brady

College of Graduate Studies: Theses & Dissertations

The supply and demand of teachers is constantly changing in the United States because they are steadily flowing in, through, and out of the educational profession (Ingersoll, 2002). Many educators and administrators are concerned about the shortage and underrepresentation of minority teachers in the profession such as African- Americans, Hispanics, Asians, Native Americans, and even males (Pytel, 2006). There is also an underrepresentation of African-American male elementary teachers. African- American male elementary teachers, a unique minority, are needed in the education profession to serve as role models earlier in the schooling process of young children, as well as to increase …

Relationship Between High School Theatre Participation And The Development Of Workplace Competencies, Dean Charles Slusser

College of Graduate Studies: Theses & Dissertations

In an age of educational accountability, high school theatre sponsors often have to defend the presence of, and funding for, their programs. The purpose of this study was to identify the perceptions of Georgia Thespian Sponsors concerning (1) the importance of certain workplace competencies, (2) the presence of opportunities for students to acquire or develop those competencies through participation in theatre, (3) the relationship between these two factors, and (4) the role of perceptions concerning administrative support in the presence of opportunities to acquire or develop workplace skills through theatre participation. The researcher developed and distributed an original instrument addressing …

Maximizing Warfighter Capability Using Surveyed Necessity Measurement: Application To The Usaf F-15c Fleet, John M. Colombi, David R. Jacques, Dennis D. Strouble

Faculty Publications

Within the Department of Defense, with changing missions to counter dynamic and asymmetrical threats, the acquisition workforce strives to maximize capability for joint warfighting. How acquisition professionals measure and select capability improvements for the nation’s weapon systems is a perpetual challenge, made even more complex with constrained defense budgets. This study identifies a method for determining which upgrades should be purchased (production) for which aircraft in the F- 15C fleet by optimizing a capability proxy measure. Each upgrade’s “necessity” for a given mission area was obtained by conducting a survey of over 250 experienced F-15C pilots. The solution presented in …

Photopolymerization And Characterization Of Thiol-Enes And Thiourethanes, Qin Li

Dissertations

Compared to conventional acrylic monomer systems, thiol-ene photopolymerization, an efficient click process leading to the formation of dense and uniform molecular networks, has several distinct advantages including relative insensitivity to oxygen inhibition, high monomer conversion and low shrinkage. Although there has been a revival of interest in thiol-enes in the past 6 years, the structure-property relationship of these networks has not been explored in detail. For future applications, thiol-enes with higher shelf-life stability and glass transition temperatures need to be used. Sulfur containing urethanes, thiourethanes and dithiourethanes are a class of widely used materials due to their distinct properties such …

Coincidence Theory: Seeking A Perceptual Preference For Just Intonation, Equal Temperament, And Pythagorean Intonation In Excerpts For Wind Instruments, Derle Ray Long

Dissertations

Coincidence theory states that when the components of harmony are in enhanced alignment the sound will be more consonant to the human auditory system. An objective method of examining the components of harmony is by investigating alignment of the mathematics of a particular sound or harmony. The study examined preference responses to excerpts tuned in just intonation, Pythagorean intonation, and equal temperament. Musical excerpts were presented in pairs and study subjects simply picked one version from the pair that they perceived as the most consonant. Results of the study revealed an overall preference for equal temperament in contradiction to coincidence …

Homefront, Stacy Elaine Pratt

Dissertations

This collection of poetry and essays explores the nature of marriage, time, and human experience. Many of the pieces center on the author's experience as the wife of a soldier deployed to Iraq and Afghanistan. Others use scientific and mathematical imagery to illustrate spiritual concepts.

A Comparison Of Reading Interventions Based On Preference To Reading Interventions Identified By Brief Experimental Analysis, Debborah Eda Smyth

Dissertations

The available literature on children's acceptability of interventions is rather sparse and offers little support for the link between acceptability and effectiveness (e.g., Foxx & Jones, 1978; Shapiro & Goldberg, 1986; Turco & Elliot, 1990). The present study compared the effects of treatment preference to treatment effectiveness using a brief experimental analysis to select skill-based oral reading fluency interventions. The use of a brief experimental analysis (BEA) (Daly, Martens, Hamler, Dool, & Eckert, 1999) has been demonstrated to be an effective procedure for selecting oral reading interventions. However, the studies on brief experimental analysis to date have not examined student …

South Mississippi Public Elementary School Teachers' Implementation Of And Attitudes Toward Inquiry-Based Science, Thomas Franklin Sumrall

Dissertations

The present study was designed to examine the relationship between the dependent variables of K-5 elementary teachers' attitudes toward inquiry-based science, implementation of National Science Education Standards concerning inquiry-based science, and the number of inquiry-based lessons taught with the predictor variables of gender, school district teaching, ethnic group, educational level, experience, grade level teaching, and number of science courses taken. Four hundred thirty teachers of grades K through 5 from seven school districts in south Mississippi were surveyed using the Revised Science Attitude Scale (Bitner, 1994), Inquiry Beliefs and Practices survey (Jeanpierre, 2006), and a demographic questionnaire. A total of …

Decentralized Perimeter Surveillance Using A Team Of Uavs, Randal Beard, David Casbeer, Derek Kingston

Faculty Publications

Sponsorship: NASA, AFOSR. This paper develops a distributed algorithm to maintain a current estimate of the state of the perimeter using a team of UAVs. Using notions of consensus, an algorithm is developed and shown to distribute a UAV team uniformly around the perimeter.

Explaining Inferences In Bayesian Networks, Ghim-Eng Yap, Ah-Hwee Tan, Hwee Hwa Pang

Research Collection School Of Computing and Information Systems

While Bayesian network (BN) can achieve accurate predictions even with erroneous or incomplete evidence, explaining the inferences remains a challenge. Existing approaches fall short because they do not exploit variable interactions and cannot account for compensations during inferences. This paper proposes the Explaining BN Inferences (EBI) procedure for explaining how variables interact to reach conclusions. EBI explains the value of a target node in terms of the influential nodes in the target's Markov blanket under specific contexts, where the Markov nodes include the target's parents, children, and the children's other parents. Working back from the target node, EBI shows the …

Green Roofs For A Green Town: Possibilities Of Green Roof Implementation In The Town Of Normal, Lindsey Sihau, '09

Outstanding Senior Seminar Papers

Green roofs have been growing in popularity throughout the world. Scientists have been studying them since the 1980’s. This research project reviews the literature regarding both the benefits and barriers to green roof construction and management. Policies around the nation are then examined and analyzed. Suggestions are made regarding possible additions to the local Stormwater Management Policy that would emphasize the importance of sustainable building techniques such as green roofs, and hopefully offer incentive to their implementation.

What Impact Does Sustainable Certification Have? A Comparison Of Aquatic Nitrate And Phosphate Levels Between Two Golf Courses In The Bloomington-Normal Community, Jason Koval, '09

Outstanding Senior Seminar Papers

Two golf courses in the Bloomington-Normal community in central Illinois were tested for nitrate and phosphate concentrations in their ponds. One golf course (The Den) is Audubon International certified while the other golf course (Ironwood) is not. This study tries to establish if differing environmental management practices can contribute to significantly different concentrations of nutrients. It was determined that the nitrate concentration was higher at the non-certified golf course, while the phosphate concentrations at both courses were essentially negligible. The implications of these findings are discussed and were presented to both golf courses. It is the hope of this paper …

Growing Food Justice In West Bloomington, Illinois, Daniel Burke, '09

Outstanding Senior Seminar Papers

In some places in the United States, guns are more accessible than tomatoes. In a nation where food is in relative abundance, how can this be? Food security is the ready availability of nutritious and safe food and the assured ability to obtain it through normal sources (Morris et al 1992). Food justice asserts that no one should live without enough food because of economic constraints or social inequities. In this way, food justice frames the lack of healthy food sources in poor communities as a human rights issue (People's Grocery 2008). However, in some communities, access to fresh, healthy …