Digital Commons Network^™

Teaching And Assessing The Writing Process, Gail H. Biros

Theses and Dissertations

The purpose of this study was to provide valuable information regarding the assessment and teaching of writing skills. Although students spend time writing stories, they do not write frequently enough to learn the basic skills of writing. Just as teachers learned that children needed direct instruction in reading skills to make "Whole Language" successful, similarly writing must be taught utilizing direct instruction of specific skills.

There are few reliable and valid assessment tools in the written language domain. A comprehensive assessment tool is needed at the beginning of the school year to help the teacher focus on the individual student …

Perceptions Of Students, Parents, And Teachers Toward Cooperative Teaching., Terence Brenner

Theses and Dissertations

The purpose of this study was to examine the Perceptions, of students, parents, and teachers toward cooperative teaching in school that have implemented cooperative teaching practices. The instrument was organized into three domains for students and parents as follows: student achievement, student-teacher relationships, and student behavior. The instrument was organized into five domains for teachers as follows: student achievement, student-teacher relationships, student behavior, teacher to teacher relationships, and professional development. There was one open-ended question at the end of the survey asking respondents to comment on cooperative teaching. Six upper midwest elementary schools participated in the study. A total of …

Electric Dipole Moment Functions Of The Hydrogen Chloride ((1)H(35)Cl) And The Carbon Monoxide ((12)C(16)O) Molecules Using An Anharmonic Potential., Fumika Kiriyama

Theses and Dissertations

In the last two decades precise understanding of the structure of hydrogen chloride (1H35Cl) and carbon monoxide ( 12C16O) molecules has become important in many fields such as astrophysics, meteorology, physical chemistry, and environmental science. In this dissertation the electric dipole moment functions of HCl and CO in the ground electronic state are calculated. The transition frequencies of the vibration-rotation lines in the lowest four bands of CO and the lowest seven bands of HCl were measured by various investigators. From these frequencies potential constants of these two diatomic molecules were determined by solving the time-independent Schrödinger wave equation using …

A Controlled Investigation Of Female Migraineurs' Psychological And Physiological Reactivity To Stress During Two Phases Of The Menstrual Cycle., Tricia Cook Myers

Theses and Dissertations

Empirical evidence supports the hypothesis that migraine headache activity can covary with psychological stress and often with phases of a woman's menstrual cycle. However, the specific parameters of the relationships between migraines, stress, and menstrual cycle variations are not well understood. It has been suggested that stress may interact with hormonal fluctuations associated with a woman's menstrual cycle to impact her headache activity. The present study examined the physiological and psychological reactivity of 32 female participants (17 controls, 15 migraineurs) in response to a laboratory speech stressor on two separate occasions corresponding to menses and the early luteal phase of …

Evaluation Of Selected Scales Of The Revised Neo Personality Inventory (Neo Pi-R) And The State -Trait Anger Expression Inventory (Staxi) With A College Student Population., John Raeburn Reid

Theses and Dissertations

It has been noted that some individuals seem to be chronically angry and hostile but experience little dysfunction in their lives because of that anger. On the other hand, other individuals experience high levels of anger around certain stimuli, experience dysfunction, and display problematic behaviors. Further, if an anger assessment is indicated and one of two such assessing instruments must be chosen, it would seem to be important to know which is most appropriate. In this study dimensional anger is investigated through the use of the Revised Neo Personality Inventory (NEO PI-R) and The State-Trait Anger Expression Inventory (STAXI). Selected …

Effect Of The Large Magnetostriction Of Terfenol -D On Microwave Transmission And Reflection., Phoumyphon Sourivong

Theses and Dissertations

The purpose of this dissertation is to study certain physical properties of Terfenol-D, a magnetic material which is extremely magnetostrictive. Of particular interest is the magnetoelastic behavior of Terfenol-D when interacting with the microwave radiation in the presence of a static magnetic field. A microwave transmission spectrometer was used to measure transmission and I modified the spectrometer to perform reflection measurements. Experiments were done over a small temperature interval near room temperature using static magnetic fields from 0 kOe to 13 kOe and with microwaves of frequency 16.95 GHz. The results of this study followed from observing at what magnetic …

How The News Media Tell The Story Of The Yanomami: A Qualitative Study Of Narrative Coherence And The Ideal Audience, Tania H. Cantrell

Theses and Dissertations

The news media link anthropological discovery and the communications discipline. In this study, press stories about the Yanomami Indians of northern Brazil and neighboring Venezuela have been studied and narratively analyzed according to Narrative Paradigm Theory. While not an audience study, plausible interpretations of ideal audience member values and insights into the question of human identity are presented. It is argued that the media are storytellers who tell the audience about itself by telling it about others recursively.

Press coverage of the Yanomami is divided into eight general categories. These include the environment, effects of "civilization," warfare/violence, massacre, gold miners, …

An Analysis Of The Effectiveness Of A Constructive Induction-Based Virus Detection Prototype, Kevin T. Damp

Theses and Dissertations

Computer viruses remain a tangible threat to systems both within the Department of Defense and throughout the greater international data communications infrastructure on which the DoD increasingly depends. This threat is exacerbated continually, as new viruses are introduced at an alarming rate by the growing collection of connected machines and their operators. Unfortunately, current antivirus solutions are ill-equipped to address these issues in the long term. This thesis documents an investigation into the use of constructive induction, a form of machine learning, as a supplemental antivirus technique theoretically capable of detecting previously unknown viruses through generalized decision-making techniques. A group …

A Comparative Analysis Of Proposed Mobility Support Schemes For Ip Multicast, Alexander Muller Jr.

Theses and Dissertations

This thesis introduces a novel mobile multicast transmission mechanism called Minimal Multicast Encapsulation. Additionally, this thesis analyzes the performance of mobility support schemes for IP multicast. Specifically, it compares the performance of combinations of two receive mechanisms and two transmit mechanisms. The receive mechanisms are the Internet Engineering Task Force (IETF) bi-directional tunneling mechanism and the IETF remote subscription mechanism. The transmit mechanisms are the IETF home tunneling mechanism and the Minimal Multicast Encapsulation. The performance analysis consists of examining path efficiencies, packet loss rates, and required mobility agent throughputs for each of the four possible combinations of the aforementioned …

The Constructivist Philosophy And Native American Students: A Personal View, Lori Weidemann

Theses and Dissertations

No abstract provided.

A Review And Comparison Of British Colonial Administrative Practices In Nigeria And Ghana And The Effects Upon Modernization And Development Efforts In Nigeria And Ghana Since Independence, Matthew J. Kissenger

Theses and Dissertations

No abstract provided.

Children With Special Health Care Needs: An Assessment Of Progress Toward Improved Health And Well Being, Tamara Gallup-Millner

Theses and Dissertations

No abstract provided.

Validation Of The Ionospheric Forecast Model (Ifm) Version 3, Michael D. Scott

Theses and Dissertations

The purpose of this research was to validate the Ionospheric Forecast Model (IFM) Version 3 to assess its suitability and usefulness as an operational tool. The Ionospheric forecast model is a first principles computer model designed to forecast the state of the global ionosphere to 24 hours. The scope was limited to a comparison of the F2 layer critical frequency (foF2) and peak electron density (hmF2) against observed ionosonde data. The model was run with global solar and geomagnetic indices and Information from Digitial Ionospheric Sounding System (DISS) observations as inputs. The DISS observations were input through the Parameterized Real-Time …

Testing Of The New Usgs K Index Algorithm At Bear Lake Observatory, Ariel O. Acebal

Theses and Dissertations

The K index was developed by Bartels in 1939 as an estimate of the level of geomagnetic activity caused by the Sun. This index was computed manually every three hours at geomagnetic observatories using the magnetic traces of the surface planetary magnetic field. In 1991, the International Association of Geomagnetism and Aeronomy approved four additional methods to compute the K index; all of them were computer algorithms. One of the approved methods, the Wilson code, recently underwent some modifications. The new algorithm is now part of a Windows-based computer program being developed by the United States Geological Survey (USGS). After …

The Evaluation Of Competing Classifiers, Stephen G. Alsing

Theses and Dissertations

This dissertation research makes contributions towards the objective evaluation of competing classifiers, i.e., classification systems (CSs) or pattern recognition algorithms. Automatic CSs have been under development for almost 40 years in a wide range of military and medical applications. During this period, scientists and engineers have developed extensive theory and algorithms for classification, but by comparison have focused little on the testing and evaluation of their systems. Classifier evaluation is very important in the fields of automatic target recognition (ATR) and pilot workload classification. In order for military operators to be confident in new CSs, they must have an objective …

Determining The Aircraft Requirement For Turkish Air Mobility System, Mehmet M. Ari

Theses and Dissertations

Aircraft technology develops very rapidly. To keep up with the modem technology, we should update our systems and material over time. In order to do so, we should keep track of modem technologies, and implement them in our military. Turkish Air Force Command operates a vital logistical system for which routing and scheduling are done on a weekly basis. This research reviewed weekly schedules and determined the average required weekly missions which would be flown during the week. By carefully examining the job - machine formulation, this research devised a method for determining the aircraft required to perform for weekly …

A Methodology For Integrating Tools In A Web-Based Environment, Musa Serdar Arslan

Theses and Dissertations

Web-based technologies are evolving very rapidly. New technologies are introduced very frequently in the realm of the Web and Internet. This evolution also affects database management systems (DBMSs). Almost all DBMS vendors are making their systems "Web-enabled." The Internet and the World Wide Web are getting more important and bigger than ever. Because of the increase in the importance of the Internet and the Web, migrating old applications and tools to a web-based environment is becoming more important. When migrating old applications or tools to the web-based environment, integration of tools becomes an important issue. In this research, a step-by-step …

Tool-Based Integration And Code Generation Of Object Models, Michael Ray Ashby

Theses and Dissertations

Today many organizations are faced with multiple large legacy data stores in different formats and the need to use data from each data store with tools based on the other data stores' formats. This thesis presents a tool-based methodology for integrating object-oriented data models with automatic generation of code. The generated code defines a global data format, generates views of global data in individual integrated data formats, and parses data from individual formats to the global formats and from the global format to the individual formats. This allows for legacy data to be translated into the global format, and all …

The Distributor’S Three-Dimensional Pallet-Packing Problem: A Mathematical Formulation And Heuristic Solution Approach, Brian P. Ballew

Theses and Dissertations

It is through practice and experience Air Force loadmasters are able to pack the Air Force standard HCU-6/E (463L) pallets efficiently. Although the loadmasters perform their jobs exceptionally well, the Air Force is in search of a model that will more efficiently pack the pallets. We have developed a mathematical formulation of the three-dimensional pallet-packing problem which minimizes the amount of unused space on a pallet. The formulation ensures each box is packed with the correct volume and dimensions, and ensures the volume of all the boxes packed is less than the available pallet volume. Additionally, the formulation ensures that …

Modeling And Simulation Of Communication Systems In Opnet, David M. Banker

Theses and Dissertations

This research aims to present accurate computer models of a communication link and a Super High Frequency (SHF) radio communication system. Network Warfare Simulation (NETWARS) is a J-6 initiative aimed at modeling all communication traffic in the Department of Defense (DoD) for testing and analysis of specific real world scenarios. The AN/TSC-94 is a SHF radio system with satellite communication capabilities. The AN/TSC-94 incorporates a Direct Sequence Spread Spectrum (DSSS) radio link for certain Anti-Jam (AJ) features. A DSSS spreads' signal power over a large bandwidth, reducing power previously concentrated within the original system bandwidth. The simulations were performed using …

Locating Search And Rescue Stations In The Aegean And Western Mediterranean Regions Of Turkey, Melih M. Basdemir

Theses and Dissertations

The service of present Search and Rescue (SAR) stations in the Aegean and the Western Mediterranean regions of Turkey are not sufficient to meet the demands of the Turkish Air Force. This research seeks to find the optimum location of new SAR stations. The number of SAR stations required to cover all areas of operation becomes a very decisive element in finding the optimal coverage of the operation area by these stations. The problem of finding the optimum SAR locations can he modeled as a maximal covering location problem (MCLP). Additional constraints are added to set standards on various issues …

Robust Multi-Scenario Optimization Of An Air Expeditionary Force Force Structure Applying Genetic Algorithms To The Combat Forces Assessment Model, Barry D. Bennett Jr.

Theses and Dissertations

The United States Air Force is increasingly facing more diverse threat situations while existing force structure levels are being reduced and proposed compositions are being severely scrutinized for relevance, affordability, and effectiveness. Military planners are struggling with the question of how to generate a single force structure that can adequately respond to a multitude of threat scenarios in an uncertain future while at the same time being tasked to prove just how effective their choice will be. In the past, modeling has been effective in showing how a force can respond to a single threat scenario but a new modeling …

Extracting Mission Semantics From Unmanned Aerial Vehicle Telemetry And Flight Plans, Walter T. Berridge

Theses and Dissertations

With the acceptance of Unmanned Aerial Vehicles (UAVs) as a primary platform within the Department of Defense (DOD) for gathering intelligence data, the amount of video information being recorded, analyzed, and archived continues to grow. Mechanisms for quickly locating and retrieving video segments of interest amongst the many hours of recorded video are required to accommodate the rapid turnaround expected in today's wartime planning environments. This research demonstrates that text-based data accompanying UAV video yields sufficient information to identify and create data items that can be indexed to provide for rapid identification and retrieval of video segments of interest. Four …

Investigation Of Ge2Te2Sb5 Chalcogenide Thin Film For Use As An Analog Memory, Travis F. Blake

Theses and Dissertations

This work investigates the feasibility of using Ge₂Te₂Sb₅ chalcogenide films for analog memory. Thick film chalcogenide memory devices provided by Ovonyx, Inc. are characterized to determine how well the devices meet the repeatability, stability and predictability criteria needed to accurately store analog data values. Chalcogenide memory devices take advantage of the phase-shifting nature of chalcogenide materials to store the analog data as a resistance level. An automated test system was developed to characterize the material and the prototype devices with the goal to determine the 1) non-destructive readability of the device at different resistance values; …

Finite Element Analysis Of A Composite Cylindrical Shell With A Cutout Under A Fatigue Load, Joshua T. Boatwright

Theses and Dissertations

A higher-order shell theory is used to analyze compressive and tensile loads on a graphite/epoxy laminated cylinder containing a square cutout. The Hashin failure criterion is used to determine failure in the fiber, matrix, or lamination. Once failure occurs, the appropriate stiffness terms are reduced. This failure causes a redistribution of stress, leading to further failure. In order to account for the loss of residual strength due to cyclic loading, the stiffness matrix is further reduced at each new increment of load or displacement. The objective is not to determine the S-N curve for the material, but rather to determine …

An Analysis In Cloud-To-Ground Lightning Over Land Versus Water, Elizabeth A. Boll

Theses and Dissertations

Understanding lightning characteristics over land and water is vital to achieving optimal safety and success in Air Force missions. Lightning safety rules are often based on experience rather than a scientific understanding of lightning. Examining lightning characteristics over water and land will assist in a better understanding of lightning and provide answers that can protect human lives and property. Water and land have different compositions and surface conductivity values. A lightning stroke is detected through a change in the electro-magnetic field at the surface. The change in surface conductivity values from land to water can affect the detection of a …

Evaluation Of A Method For Kinematic Gps Carrier-Phase Ambiguity Resolution Using A Network Of Reference Receivers, Brian L. Bracy

Theses and Dissertations

New applications for GPS have driven a demand for increased positioning accuracy. The emerging GPS technology particularly affects the test community. The testing equipment and method must provide a solution that is an order of magnitude more precise than the tested equipment to achieve the desired accuracy. Carrier-phase differential GPS methods using a network of reference receivers can provide the centimeter-level accuracy required over a large geographical area. This thesis evaluates the performance of a 5-receiver network over a 50 km x 120 km area of New Mexico, using a GPS network algorithm called NetAdjust. The percentage of time a …

Stochastic Modeling-Based Dgps Estimation Algorithm, James T. Broaddus

Theses and Dissertations

A Kinematic Differential Global Positioning System (KDGPS) algorithm is developed. A number of mobile receivers is considered, one of which will be designated the reference station' which will have known position and velocity information at the beginning of the time interval examined. Satellite clock biases are used to model Selective Availability. The measurement situation on hand is properly modeled and a centralized estimation algorithm processing several epochs of data. The effect of uncertainty in the reference receiver's position and the level of receiver noise is examined. Monte Carlo simulations are performed to examine the ability of the algorithm to correctly …

Using Rsm, Doe, And Linear Regression To Develop A Metamodel To Predict Cargo Delivery Of A Time Phase Force Deployment Document, Kenneth S. Browne

Theses and Dissertations

Air Mobility Command (AMC) uses the Airlift Flow Model as their primary tool to estimate the amount of cargo delivered in a Time Phase Force Deployment Document (TPFDD). The primary objective of this research was an exploratory investigation in the development of a metamodel to predict the amount of cargo delivered from a TPFDD by AMC into a theater. In creating a valid metamodel the analyst would be able to quickly provide the decision-maker with accurate insights should input parameters change. This would save valuable time and replace the need to physically change the input parameters and re-run the simulation. …

Generating Executable Persistent Data Storage/Retrieval Code From Object-Oriented Specifications, Steven R. Buckwalter

Theses and Dissertations

This research creates a methodology and corresponding prototype for the transformation of object-oriented (OO) specifications to represent the corresponding relational schemas that are used to automatically generate database design language (DDL). The transformation design decisions and specifications are then used to generate database manipulation language (DML) that can be embedded within the software application code generated from the same OO specifications. This concept of developing a model for producing compilable and executable code from formal software specifications has long been a goal of software engineers. Previous research at the Air Force Institute of Technology (AFIT) has not focused on the …