Digital Commons Network^™

Hydrophobic Silicas With Well-Defined Chemistry And Geometry: Synthesis, Adsorption, And Interfacial Properties, Francis Bernardoni

Seton Hall University Dissertations and Theses (ETDs)

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Academic Persistence Factors For Students Who Delay College Entry, Kirsten Tripodi

Seton Hall University Dissertations and Theses (ETDs)

Many more students begin college than complete their degrees. Retaining students to graduation has been the objective of many research studies; however, college students are changing. Changing demographics in the United States are creating changes in the college student population that could not have been foreseen years ago. In order inform policy in a changing climate, the research community must study the changes in the student body and what factors are important to the persistence of the new college student. This study will use Adelman's framework from The Toolbox Studies in conjunction with the Beginning Postsecondary Survey in order to …

Radiative Transfer Theory Applied To Ocean Bottom Modeling, Jorge Quijano

Dissertations and Theses

Research on the propagation of acoustic waves in ocean bottom sediment is of interest for active sonar applications such as target detection and remote sensing. Currently, all seabed scattering models available in the literature are based on the full solution of the wave equation, which sometimes leads to mathematically intractable problems. In the electromagnetics community, an alternative formulation that overcomes some of this complexity is radiative transfer theory, which has established itself as an important technique for remote sensing. In this work, radiative transfer (RT) theory is proposed for the first time as a tool for the study of seabed …

Fully Generalized Two-Dimensional Constrained Delaunay Mesh Refinement, Panagiotis A. Foteinos, Andrey N. Chernikov, Nikos P. Chrisochoides

Computer Science Faculty Publications

Traditional refinement algorithms insert a Steiner point from a few possible choices at each step. Our algorithm, on the contrary, defines regions from where a Steiner point can be selected and thus inserts a Steiner point among an infinite number of choices. Our algorithm significantly extends existing generalized algorithms by increasing the number and the size of these regions. The lower bound for newly created angles can be arbitrarily close to $30^{\circ}$. Both termination and good grading are guaranteed. It is the first Delaunay refinement algorithm with a $30^{\circ}$ angle bound and with grading guarantees. Experimental evaluation of our algorithm …

The 3rd Computational Structural Bioinformatics Workshop, Jing He, Di Wu

Computer Science Faculty Publications

As many other domains in biology, molecular structures have proposed challenging but interesting computational problems. The unique challenge of the 3-dimensional molecular structures comes from the combination of the fundamental concepts of physics, chemistry, biology and geometry, and it is often computationally intensive to search for the correct structure. The Computational Structural Bioinformatics Workshop (CSBW) is a workshop that focuses on the fundamental computational work that is related to 3-dimensional molecular structures. This workshop aims to bring together researchers with expertise in bioinformatics, computational biology, structural biology, data mining, optimization and high performance computing to discuss recent results, new techniques, …

The Plot Thickens: Using A Plotting Activity To Start Your School Year Strong, Joe Taylor

Iowa Science Teachers Journal

Captivating students and setting high expectations for critical thinking are two key classroom goals. This plotting and graphing activity is designed specifically to achieve these goals. Additionally, this activity can be modified for any science course taught at the secondary school level. Support materials including teacher and student printouts are provided at the end of the article. This activity promotes National Science Education Standards A, C, D, and F and Iowa Teaching Standards 1, 3, 4, 5, and 6.

Keeping It Green: Using A Compost To Improve Student Learning, Spencer Mesick, Kayla Hendrix

Iowa Science Teachers Journal

This article discusses ways in which composting might be used to mentally engage students with science content. Incorporating a compost pile in the classroom provides ample connections to future science content (e.g., conditions necessary for the life of organisms in a well running aerobic compost, what decomposition means in a biological sense, aerobic vs. anaerobic decomposition, food webs, respiration, recycling of nutrients, landfill issues, etc.). Also, reflecting the complexities of effective science teaching, the article makes clear the crucial role of the teacher during the activity. The science content and activity addressed in this article are appropriate for 9th - …

When Dissatisfaction Is A Good Thing, Michael P. Clough, Jerrid Kruse

Iowa Science Teachers Journal

Our previous editorial (Clough and Kruse, 2010) in the Iowa Science Teacher Journal used conceptual change theory (Posner, 1982; Pintrich et al., 1993; Abd-El-Khalick & Akerson, 2004; Clough, 2006) to highlight the similarities between students learning science content and educators learning to teach well. An important part of conceptual change is first acknowledging and then confronting current ways of thinking. That is, before learners (whether children or adults) will consider altering their thinking, they must first develop some sense of dissatisfaction with their currently held ideas. That can be difficult because the ideas people hold do appear to work — …

Exploring The Depths: Inquiry To Apply And Deepen Students’ Understanding Of Density, James M. Sleep, Lee Johnson

Iowa Science Teachers Journal

This activity is designed to deepen students' understanding of the concept of density through scientific inquiry. Students devise procedures to determine the relative and absolute (qualitative and quantitative) densities of several solutions of salt water, and establish a class consensus on their results. Students then apply their findings to estimate the density of an unknown solution. The targeted grade-level for this activity is 8 grade physical science. However, because we know students at all grade levels struggle to understand density, this activity could also be useful in high school Earth science and chemistry. This activity promotes National Science Education Content …

Temperature Rising: Investigating Rates Of Temperature Change, Jacob Norlin, Daryl Miller

Iowa Science Teachers Journal

This exploratory activity, designed for secondary physical science or earth science students, investigates rates of temperature change over bodies of water and land. Students discuss temperature trends of several cities across the United States, which creates an opportunity to conduct classroom experiments to explain these trends. Students write procedures and generate data of temperature changes between areas of water and land. Students gain a valuable, concrete experience of temperature changes which in turn enables them to better understand and explain why similar cities experience vastly different temperature patterns. This activity can then serve as a basis to address the abstract …

Confronting Doubts About The Intelligibility, Plausibility, And Fruitfulness Of Inquiry-Based Instruction, Jerrid Kruse, Michael P. Clough

Iowa Science Teachers Journal

Our two prior ISTJ editorials in the Iowa Science Teacher Journal (Clough & Kruse, 2010a & 2010b) have applied a conceptual change framework (Posner, Strike, Hewson & Gertzog, 1983; Pintrich et al., 1993; Abd-El-Khalick & Akerson, 2004; Clough, 2006a) to understand the difficulties students have in abandoning their intuitive ideas about the natural world and, for the same reasons, the difficulties teachers have in jettisoning their intuitive and learning. Our last editorial noted that in both cases, dissatisfaction with prior ways of thinking must be achieved before alternative ways of thinking will be seriously sought and considered. To initiate a …

Thinking On Paper: Using Science Notebooks To Increase Active Engagement In The Elementary Science Classroom, Kimberly R. Gasaway

Iowa Science Teachers Journal

The need for scientific literacy is becoming a new standard to which school districts are being held accountable. Student inquiry and the ability to “think like a scientist” will increase the depth at which students understand the natural world and make connections that are critical in strengthening students' scientific literacy. In addition, research has shown that when students were actively engaged in the learning process, they participated more enthusiastically and retained the concepts being taught. Science notebooks help students learn to record and make sense of data and observations about the natural world and come to deeper understanding of scientific …

Mammal Capture Success Of Scent Stations And Remote Cameras In Prairie And Forest Habitat, Marc N. Mckinney, Aaron M. Haines

Journal of the Iowa Academy of Science: JIAS

Two common noninvasive (i.e., no stress to the animal) methods used to survey mammals include track stations (i.e., track captures of mammals) and remote camera-traps (i.e., photo-captures of mammals). Our objectives were to compare capture effectiveness of both track stations and remote cameras in both forested and prairie habitats. This project was conducted on 4 study sires (2 forested sires and 2 prairie sites) located in Fayette County, Iowa. Each study site had 6 trapping stations 2:: 100 m apart. We monitored traps for a total of 216 trap nights and we recorded a total of 368 captures composed of …

Table Of Contents (Back Cover)

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Probe (Problem-Based Learning Activities For K-12 Science), Jody Stone

K-12 Curriculum Supplements

This book, PROBE: Problem-Based Learning Activities for K-12 Science, is a K-12 curriculum supplement developed by the Jody Stone at the Malcom Price Laboratory School to teach problem-based science learning.

PROBE covers the following areas: Chemistry, Earth Science, Environmental Science, Health Science, Inquiry, Life Science, Literacy, Math, Physical Science, and Physics. The materials were developed for different grades ranging from PreK to 12th grade.

Optimization Models And Algorithms For Spatial Scheduling, Christopher J. Garcia

Engineering Management & Systems Engineering Theses & Dissertations

Spatial scheduling problems involve scheduling a set of activities or jobs that each require a certain amount of physical space in order to be carried out. In these problems space is a limited resource, and the job locations, orientations, and start times must be simultaneously determined. As a result, spatial scheduling problems are a particularly difficult class of scheduling problems. These problems are commonly encountered in diverse industries including shipbuilding, aircraft assembly, and supply chain management. Despite its importance, there is a relatively scarce amount of research in the area of spatial scheduling.

In this dissertation, spatial scheduling problems are …

Transmitter Optimization In Multiuser Wireless Systems With Quality Of Service Constraints, Danda B. Rawat

Electrical & Computer Engineering Theses & Dissertations

In this dissertation, transmitter adaptation for optimal resource allocation in wireless communication systems are investigated. First, a multiple access channel model is considered where many transmitters communicate with a single receiver. This scenario is a basic component of a. wireless network in which multiple users simultaneously access the resources of a wireless service provider. Adaptive algorithms for transmitter optimization to meet Quality-of-Service (QoS) requirements in a distributed manner are studied. Second, an interference channel model is considered where multiple interfering transmitter-receiver pairs co-exist such that a given transmitter communicates with its intended receiver in the presence of interference from other …

Relationship Between Membership In Deca, An Association Of Marketing Students, And Grade Point Average As An Indicator Of Academic Success, Michael Frederick Kosloski Jr.

STEMPS Theses & Dissertations

Stakeholders in career and technical education, and more specifically marketing education, tout member benefits of applied learning through career and technical student organizations. However, there is little empirical evidence to support the notion that such student organizations help students to achieve academic gains. As a result, the purpose of this study was to collect and analyze empirical data to determine whether there is a relationship between DECA, An Association of Marketing Students, and academic gains as indicated by grade point average.

The study examined three relationships. The first was the relationship between DECA membership and grade point average movement, the …

Meaningful Distributed Instruction— Conceptual Previews For Symbolic Procedures, Edward C. Rathmell

Faculty Work

Understanding a symbolic procedure means far more than “getting the right answer.” A mathematical symbolic procedure or written skill involves step-bystep thinking that leads from a computational problem to a solution. Memorizing this step-by-step procedure may enable a student to answer the problem, even answer it correctly. Yes, that is important, but understanding means much more.

Butterfly Response To Floral Resources At A Heterogeneous Prairie Biofuel Production Site, Benjamin J. Hoksch, Mark C. Myers

Undergraduate Student Work

In the Midwestern USA, current biofuel production systems rely on high input monoculture crops that do little to support biodiversity or protect soil and water resources. The University of Northern Iowa’s Tallgrass Prairie Center is investigating the feasibility of cultivating and harvesting diverse mixes of native prairie vegetation as a sustainable biofuel. In 2009, we established 48 research plots seeded with one of four treatments: 1) switchgrass monoculture, 2) warm-season grass mix (5 species), 3) biomass mix (16 species of grasses and forbs), or 4) prairie mix (32 species of grasses and forbs). We hypothesized that more diverse plant communities …

Conflicting Identities And Ideologies: A Rhetorical Analysis Of The National Japanese American Memorial To Patriotism During World War Ii, Kaori Yamada

Dissertations and Theses @ UNI

This thesis is a rhetorical criticism of the National Japanese American Memorial to Patriotism During World War II, located in Washington, D.C. It was erected on November 9, 2000, to memorialize Japanese Americans who were forced to move to the relocation camps and Japanese American soldiers who died as members of the U.S. armed forces during WWII. Examining the intended meaning of the Memorial by its creators is not a central focus of this study. Rather, I investigate how interactions among the rhetoric of the Memorial, social contexts, and audiences create multiple meanings.

The first analytic focus is the symbolic …

User Satisfaction With Electronic Reference: A Systematic Review, Elaine M. Lasda Bergman, Irina I. Holden

University Libraries Faculty Scholarship

Purpose – The paper aims to systematically review research that analyzes satisfaction with electronic reference services, paying particular attention to how user satisfaction is measured. The application and value of evidence‐based methodologies for library and information science (LIS) research are explored.

Design/methodology/approach – Database searches identified research concerned with electronic reference. Articles with a variable of user satisfaction were extracted and subjected to a critical appraisal. The remaining research was analyzed for similarities, differences, and consistency.

Findings – A wide variety of methods are used to measure user satisfaction. There was almost no overlap in specific questions considered although there …

Impacts Of Land Use/Land Cover Change On Climate And Future Research Priorities, Rezaul Mahmood, Roger A. Pielke Sr., Kenneth G. Hubbard, Dev Niyogi, Gordon Bonan, Peter Lawrence, Richard Mcnider, Clive Mcalpine, Andres Etter, Samuel Gameda, Budong Qian, Andrew Carleton, Adriana Beltran-Przekurat, Thomas Chase, Arturo I. Quintanar, Jimmy O. Adegoke, Sajith Vezhapparambu, Glen Connor, Salvi Asefi, Elif Sertel, David R. Legates, Yuling Wu, Robert Hale, Oliver W. Frauenfeld, Anthony Watts, Marshall Shepherd, Chandana Mitra, Valentine G. Anantharaj, Souleymane Fall, Robert Lund, Anna Treviño, Peter D. Blanken, Jinyang Du, Hsin-I Chang, Ronnie Leeper, Udaysankar S. Nair, Scott Dobler, Ravinesh Deo, Jozef Syktus

School of Natural Resources: Faculty Publications

Human activities have modified the environment for thousands of years. Significant population increase, migration, and accelerated socioeconomic activities have intensified these environmental changes over the last several centuries. The climate impacts of these changes have been found in local, regional, and global trends in modern atmospheric temperature records and other relevant climatic indicators.

An important human influence on atmospheric temperature trends is extensive land use/land cover change (LULCC) and its climate forcing. Studies using both modeled and observed data have documented these impacts (e.g., Chase et al. 2000; Kalnay and Cai 2003; Cai and Kalnay 2004; Trenberth 2004; Vose et …

Improving Farmers’ Perception And Use Of Climate Predictions In Farming Decisions: A Transition Model, Lisa M. Pytlikzillig, Qi Hu, Kenneth G. Hubbard, Gary D. Lynne, Roger H. Bruning

School of Natural Resources: Faculty Publications

Despite tremendous efforts to improve weather and climate predictions and to inform farmers about the use of such weather products, farmers’ attitudes toward forecast use remain poor and farmer use of forecasts has not increased. This paper describes features of a new conceptual model for facilitating farmers’ use of weather products and offers preliminary evidence for its effectiveness based on a test-of-concept prototype. The prototype system provides farmers with contextualized information, the opportunity to use that information in relevant farming contexts, and collaborative interaction with other users. In addition, scaffolding and feedback are incorporated in the model to enhance learning …

Improving Predicted Protein Loop Structure Ranking Using A Pareto-Optimality Consensus Method, Yaohang Li, Ionel Rata, See-Wing Chiu, Erik Jakobsson

Computer Science Faculty Publications

Background

Accurate protein loop structure models are important to understand functions of many proteins. Identifying the native or near-native models by distinguishing them from the misfolded ones is a critical step in protein loop structure prediction.

Results

We have developed a Pareto Optimal Consensus (POC) method, which is a consensus model ranking approach to integrate multiple knowledge- or physics-based scoring functions. The procedure of identifying the models of best quality in a model set includes: 1) identifying the models at the Pareto optimal front with respect to a set of scoring functions, and 2) ranking them based on the fuzzy …

Remote Access Forensics For Vnc And Rdp On Windows Platform, Paresh Kerai

Theses : Honours

There has been a greater implementation of remote access technologies in recent years. Many organisations are adapting remote technologies such as Virtual Network Computing (VNC) and remote desktop (RDP) applications as customer support application. They use these applications to remotely configure computers and solve computer and network issues of the client on spot. Therefore, the system administrator or the desktop technician does not have to sit on the client computer physically to solve a computer issue. This increase in adaptation of remote applications is of interest to forensic investigators; this is because illegal activities can be performed over the connection. …

Comparison And Application Of Three Decorrelation Methods Pca, Maf And Acdc, Jacqueline Ferreira

Theses : Honours

Geostatistics is a branch of applied mathematics that deals with spatially correlated data. Analysing and modelling spatially correlated data can be difficult and time consuming, especially for a multivariate data set. One of the techniques used to make analysis and modelling easier involves decorrelation, whereby a linear transformation on the sample variables is used to associate the spatially correlated variables with a set of decorrelated factors which are statistically and spatially independent. PCA was one of the first multivariate techniques and is mostly used as a data reduction technique. A popular alternative decorrelation technique often used in the mining industry …

Impact Of Higher Education Workplace Relations Requirements On Nteu Membership Density, Tulsi Laxman Panchani

Theses : Honours

The National Tertiary Education Union (NTEU) is the only union working entirely in tertiary education around Australia. The union has over twenty four thousand members comprising of academic and general staff. NTEU maintains membership records at three levels, national, state and branch. The information collected includes gender, age group, employment type and work classification. In late April 2005, Higher Education Workplace Relations Requirements (HEWRRs) legislation was introduced by the Australian government. This legislation imposed restrictions on the interaction between the universities and the union and also curtailed an automatic involvement of the union in the resolution of workplace issues. The …

Terrorism In Australia: Myth Or Reality? A Psychometric Study Into The Western Australian Public's Perception Of Terrorism, Richard Sargent

Theses : Honours

Terrorism is not a new concept as terrorist individuals and organisations since time immemorial have used the threat of violence or actual violence to generate fear in individuals, organisations and governments alike. Fear is a powerful weapon and it is used in order to gain political, ideological or religious objectives. The attacks on the World Trade Centre and the Pentagon on the 11th September 2001 (9/11) highlighted the dangers of the inadequate intelligence, border security and immigration practices that led to this event. The attacks were a security wake up call not only for the United States of America but …

The Relationship Between Amount Of Training And Performance On A New Task, Jacinta Avril Tan

Theses : Honours

This paper was designed to examine the relationship between training and transfer tasks and performance on these tasks whereby training can be used to predict transfer. Previous research has assumed that performance of an established task should extrapolate the power function of learning. That is, performance of an established skill in a new domain will continue to improve at the same rate with practice as if there was no change in the domain. 60 participants were recruited from the University of Edith Cowan and were randomly assigned to one of three conditions; I 0 block condition, 20 block condition, or …