Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2008

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 89011 - 89040 of 92745

Full-Text Articles in Entire DC Network

Top Management's Perceptions Of Service Excellence And Hospitality: The Case Of Dr. P. Phillips Hospital, Taryn Aiello Jan 2008

Top Management's Perceptions Of Service Excellence And Hospitality: The Case Of Dr. P. Phillips Hospital, Taryn Aiello

Electronic Theses and Dissertations

This study investigated service excellence and hospitality in a healthcare setting. It is unique from other hospitality research in that it considers hospitality and service excellence as separate concepts, applicable across industries. Part of the premise of this study explores how hospitality extends past service excellence to create a comfortable and welcoming environment to combat patient anxiety and stress. Furthermore, this is one of the first qualitative studies on the importance of service excellence and hospitality in the healthcare industry. This case study measured top management's perceptions of service excellence and hospitality within one community-based hospital located in Orlando, Florida. …

Go to article

The Effect Of Mathematical Manipulative Materials On Third Grade Students' Participation, Engagement, And Academic Performan, Caryn Ross Jan 2008

The Effect Of Mathematical Manipulative Materials On Third Grade Students' Participation, Engagement, And Academic Performan, Caryn Ross

Electronic Theses and Dissertations

This study is the summary of research conducted in a third grade classroom during a unit on multi-digit addition and subtraction. The classroom teacher utilized mathematical manipulative materials throughout the course of this unit as a supplement to aid in the conceptual understanding of addition and subtraction. This study showed the effects of those manipulatives on third grade students' participation, engagement, and academic performance. Data collected from teacher observations and video recordings indicated a positive relationship between manipulatives and student participation and engagement. A pre-test/post-test and student work samples were used to determine effects on academic performance. Data showed students' …

Go to article

The Effects Of Problem Solving Strategy Instruction, Journal Writing And Discourse On 6th Grade Advanced Mathematics Student Per, Melissa Wittcop Jan 2008

The Effects Of Problem Solving Strategy Instruction, Journal Writing And Discourse On 6th Grade Advanced Mathematics Student Per, Melissa Wittcop

Electronic Theses and Dissertations

There are two purposes to this study. The first was for me, as a teacher, to try something new in my instruction and grow from it. The second purpose of this study focused on the students. I wanted to see what level of performance in problem solving my students are at currently, and how the use of journaling and discourse affected the students' problem solving abilities. A problem-solving unit was taught heuristically in order to introduce students to the various strategies that could be used in problem solving. Math journals were also used for problem solving and reflection. Classroom discourse …

Go to article

Effects On Student Performance Of Using Hands-On Activities To Teach Seventh Grade Students' Measurement Concepts, Darlene Hoke Jan 2008

Effects On Student Performance Of Using Hands-On Activities To Teach Seventh Grade Students' Measurement Concepts, Darlene Hoke

Electronic Theses and Dissertations

Student performance on measurement concepts in mathematics was the basis for this action research study. This study summarizes research conducted in a seventh grade classroom at an urban middle school during fall of 2005. The study investigated the practice of using hands-on activities in addition to the standard mathematics curriculum to improve student performance in measurement tasks. Students were asked to respond to questions posed by both teacher and other students in the classroom. Data were collected using measurement survey, focus group discussions, math journals, and teacher observations. Results of this study showed that student performance on measurement tasks increased …

Go to article

Helping At-Risk Students Solve Mathematical Word Problems Through The Use Of Direct Instruction And Problem Solving Strategies, Lurdes Lopez Jan 2008

Helping At-Risk Students Solve Mathematical Word Problems Through The Use Of Direct Instruction And Problem Solving Strategies, Lurdes Lopez

Electronic Theses and Dissertations

This action research study examined the influence mathematical strategies had on middle school students' mathematical ability. The purpose of this action research study was to observe students mathematical abilities and to investigate whether teaching students problem-solving strategies in mathematics will enhance student's mathematical thinking and their ability to comprehend and solve word problems. The study took place in an urban school in Orlando, Florida in the fall of 2004. The subjects will be 12 eighth grade students assigned to my intensive math class. Quantitative data was collected. Students' took a pre and post test designed to measure and give students …

Go to article

A Numerical Analysis Approach For Estimating The Minimum Traveling Wave Speed For An Autocatalytic Reaction, Erika Blanken Jan 2008

A Numerical Analysis Approach For Estimating The Minimum Traveling Wave Speed For An Autocatalytic Reaction, Erika Blanken

Electronic Theses and Dissertations

This thesis studies the traveling wavefront created by the autocatalytic cubic chemical reaction A + 2B → 3B involving two chemical species A and B, where A is the reactant and B is the auto-catalyst. The diffusion coefficients for A and B are given by DA and DB. These coefficients differ as a result of the chemical species having different size and/or weight. Theoretical results show there exist bounds, v* and v*, depending on DB/DA, where for speeds v ≥ v*, a traveling wave solution exists, while for speeds v < v*, a solution does not exist. Moreover, if DB ≤ DA, and v* and v* are similar to one another and in the order of DB/DA when it is small. On the other hand, when DA ≤ DB there exists a minimum speed vmin, such that there is a traveling wave solution if the speed v > vmin. The determination of vmin is very important in determining …

Go to article

Fractal Interpolation, Gayatri Ramesh Jan 2008

Fractal Interpolation, Gayatri Ramesh

Electronic Theses and Dissertations

This thesis is devoted to a study about Fractals and Fractal Polynomial Interpolation. Fractal Interpolation is a great topic with many interesting applications, some of which are used in everyday lives such as television, camera, and radio. The thesis is comprised of eight chapters. Chapter one contains a brief introduction and a historical account of fractals. Chapter two is about polynomial interpolation processes such as Newton s, Hermite, and Lagrange. Chapter three focuses on iterated function systems. In this chapter I report results contained in Barnsley s paper, Fractal Functions and Interpolation. I also mention results on iterated function system …

Go to article

Analysis Of Kolmogorov's Superposition Theorem And Its Implementation In Applications With Low And High Dimensional Data., Donald Bryant Jan 2008

Analysis Of Kolmogorov's Superposition Theorem And Its Implementation In Applications With Low And High Dimensional Data., Donald Bryant

Electronic Theses and Dissertations

In this dissertation, we analyze Kolmogorov's superposition theorem for high dimensions. Our main goal is to explore and demonstrate the feasibility of an accurate implementation of Kolmogorov's theorem. First, based on Lorentz's ideas, we provide a thorough discussion on the proof and its numerical implementation of the theorem in dimension two. We present computational experiments which prove the feasibility of the theorem in applications of low dimensions (namely, dimensions two and three). Next, we present high dimensional extensions with complete and detailed proofs and provide the implementation that aims at applications with high dimensionality. The amalgamation of these ideas is …

Go to article

Comparing Assessment Methods As Predictors Of Student Learning In Undergraduate Mathematics, Nichole Shorter Jan 2008

Comparing Assessment Methods As Predictors Of Student Learning In Undergraduate Mathematics, Nichole Shorter

Electronic Theses and Dissertations

This experiment was designed to determine which assessment method: continuous assessment (in the form of daily in-class quizzes), cumulative assessment (in the form of online homework), or project-based learning, best predicts student learning (dependent upon posttest grades) in an undergraduate mathematics course. Participants included 117 university-level undergraduate freshmen enrolled in a course titled "Mathematics for Calculus". Initially, a multiple regression model was formulated to model the relationship between the predictor variables (the continuous assessment, cumulative assessment, and project scores) versus the outcome variable (the posttest scores). However, due to the possibility of multicollinearity present between the cumulative assessment predictor variable …

Go to article

Field Of View Effects On Reflexive Motor Response In Flight Simulation, Javier Covelli Jan 2008

Field Of View Effects On Reflexive Motor Response In Flight Simulation, Javier Covelli

Electronic Theses and Dissertations

Virtual Reality (VR) and Augmented Reality (AR) Head Mounted Display (HMD) or Head Worn Display (HWD) technology represents low-cost, wide Field of Regard (FOR), deployable systems when compared to traditional simulation facilities. However, given current technological limitations, HWD flight simulator implementations provide a limited effective Field of View (eFOV) far narrower than the normal human 200[degrees] horizontal and 135[degrees] vertical FOV. Developing a HWD with such a wide FOV is expensive but can increase the aviator's visual stimulus, perception, sense of presence and overall training effectiveness. This research and experimentation test this proposition by manipulating the eFOV of experienced pilots …

Go to article

Perception And Displays For Teleoperated Robots, Linda Upham Ellis Jan 2008

Perception And Displays For Teleoperated Robots, Linda Upham Ellis

Electronic Theses and Dissertations

In remote or teleoperational tasks involving humans and robots, various aspects of the remote display system may greatly influence the individual's interactions with the teleoperated entity. This dissertation examined various configurations of display systems on several measures of operator performance, physiological states, and perceptions of the task. Display configurations included altering the camera placement (attached to the robot or placed overhead), screen orientation (horizontal or vertical), and screen size (small or large). Performance was measured in terms of specific task goals, accuracies, strategies, and completion times. Physiological state was assessed through physiological markers of arousal, specifically heart rate and skin …

Go to article

Data Mining Methods For Malware Detection, Muazzam Siddiqui Jan 2008

Data Mining Methods For Malware Detection, Muazzam Siddiqui

Electronic Theses and Dissertations

This research investigates the use of data mining methods for malware (malicious programs) detection and proposed a framework as an alternative to the traditional signature detection methods. The traditional approaches using signatures to detect malicious programs fails for the new and unknown malwares case, where signatures are not available. We present a data mining framework to detect malicious programs. We collected, analyzed and processed several thousand malicious and clean programs to find out the best features and build models that can classify a given program into a malware or a clean class. Our research is closely related to information retrieval …

Go to article

Trait Arousability And Its Impact On Adaptive Multimedia Training, Sae Schatz Jan 2008

Trait Arousability And Its Impact On Adaptive Multimedia Training, Sae Schatz

Electronic Theses and Dissertations

Today's best intelligent, adaptive, multimedia trainers have shown excellent performance; however, their results still fall far-short of what good human tutors can achieve. The overarching thesis of this paper is that future intelligent, adaptive systems will be improved by taking into account relevant, consistent, and meaningful individual differences. Specifically, responding to individual differences among trainees will (a) form more accurate individual baselines within a training system, and (b) better inform system responses (so that they interpret and respond to observable data more appropriately). One variable to consider is trait arousability, which describes individual differences in sensitivity to stimuli. Individuals' arousability …

Go to article

Health-Care Seeking Behaviors Of Puerto Ricans With Diabetes Mellitus Who Live In South Florida: An Exploratory Study, Laura Gonzalez Jan 2008

Health-Care Seeking Behaviors Of Puerto Ricans With Diabetes Mellitus Who Live In South Florida: An Exploratory Study, Laura Gonzalez

Electronic Theses and Dissertations

Latinos are the fastest growing minority population in the United States (U.S.) and have the worst access to health care of any ethnic group. The chronic disease of diabetes is twice as common in adult Latinos as in non-Latino whites, and the risk of death related to diabetes is twofold. Reasons for this disparity have yet to be clearly identified. This study had two purposes: 1) to explore cultural beliefs regarding health-care seeking behaviors in Puerto Ricans with diabetes who live in South Florida; and 2) to examine Puerto Ricans' perceptions about their health-care providers. The cultural phenomena of interest …

Go to article

The Impact Of A Nurse-Driven Evidence-Based Discharge Planning Protocol On Organizational Efficiency And Patient Satisfaction In, Tracey King Jan 2008

The Impact Of A Nurse-Driven Evidence-Based Discharge Planning Protocol On Organizational Efficiency And Patient Satisfaction In, Tracey King

Electronic Theses and Dissertations

Purpose: Healthcare organizations are mandated to improve quality and safety for patients while stressed with shorter lengths of stay, communication lapses between disciplines, and patient throughput issues that impede timely delivery of patient care. Nurses play a prominent role in the safe transition of patients from admission to discharge. Although nurses participate in discharge planning, limited research has addressed the role and outcomes of the registered nurse as a leader in the process. The aim of this study was determine if implementation of a nurse-driven discharge planning protocol for patients undergoing cardiac implant would result in improved organizational efficiencies, higher …

Go to article

A Comparison Of Computer And Traditional Face-To-Face Classroom Orientation For Beginning Critical Care Nurses, Patricia Anzalone Jan 2008

A Comparison Of Computer And Traditional Face-To-Face Classroom Orientation For Beginning Critical Care Nurses, Patricia Anzalone

Electronic Theses and Dissertations

Purpose: Education of the novice critical care nurse has traditionally been conducted by critical care educators in face-to-face classes in an orientation or internship. A shortage of qualified educators and growth in electronic modes of course delivery has led organizations to explore electronic learning (e-learning) to provide orientation to critical care nursing concepts. Equivalence of e-learning versus traditional critical care orientation has not been studied. The primary aim of this study was to examine the equivalency of knowledge attainment in the cardiovascular module of the Essentials of Critical Care Orientation (ECCO) e-learning program to traditional face-to-face critical care orientation classes …

Go to article

Low Noise, High Repetition Rate Semiconductor-Based Mode-Locked Lasers For Signal Processing And Coherent Communications, Franklyn Quinlan Jan 2008

Low Noise, High Repetition Rate Semiconductor-Based Mode-Locked Lasers For Signal Processing And Coherent Communications, Franklyn Quinlan

Electronic Theses and Dissertations

This dissertation details work on high repetition rate semiconductor mode-locked lasers. The qualities of stable pulse trains and stable optical frequency content are the focus of the work performed. First, applications of such lasers are reviewed with particular attention to applications only realizable with laser performance such as presented in this dissertation. Sources of timing jitter are also reviewed, as are techniques by which the timing jitter of a 10 GHz optical pulse train may be measured. Experimental results begin with an exploration of the consequences on the timing and amplitude jitter of the phase noise of an RF source …

Go to article

Ultrashort Laser Pulse Interaction With Photo-Thermo-Refractive Glass, Leo Siiman Jan 2008

Ultrashort Laser Pulse Interaction With Photo-Thermo-Refractive Glass, Leo Siiman

Electronic Theses and Dissertations

Photo-thermo-refractive (PTR) glass is an ideal photosensitive material for recording phase volume holograms. It is a homogeneous multi-component silicate glass that demonstrates all the advantages of optical glass: thermal stability, high laser damage threshold, and a wide transparency range. Moreover the ability to record phase patterns (i.e. spatial refractive index variations) into PTR glass has resulted in the fabrication of volume holograms with diffraction efficiency greater than 99%. The conventional method of recording a hologram in PTR glass relies on exposure to continuous-wave ultraviolet laser radiation. In this dissertation the interaction between infrared ultrashort laser pulses and PTR glass is …

Go to article

Cholesteric Liquid Crystal Photonic Crystal Lasers And Photonic Devices, Ying Zhou Jan 2008

Cholesteric Liquid Crystal Photonic Crystal Lasers And Photonic Devices, Ying Zhou

Electronic Theses and Dissertations

This dissertation discusses cholesteric liquid crystals (CLCs) and polymers based photonic devices including one-dimensional (1D) photonic crystal lasers and broadband circular polarizers. CLCs showing unique self-organized chiral structures have been widely used in bistable displays, flexible displays, and reflectors. However, the photonic band gap they exhibit opens a new way for generating laser light at the photonic band edge (PBE) or inside the band gap. When doped with an emissive laser dye, cholesteric liquid crystals provide distributed feedback so that mirrorless lasing is hence possible. Due to the limited surface anchoring, the thickness of gain medium and feedback length is …

Go to article

Integrated Optical Spr (Surface Plasmon Resonance) Sensor Based On Optoelectronic Platform, Hyungseok Bang Jan 2008

Integrated Optical Spr (Surface Plasmon Resonance) Sensor Based On Optoelectronic Platform, Hyungseok Bang

Electronic Theses and Dissertations

Current major demands in SPR sensor development are system miniaturization and throughput improvement. Structuring an array of integrated optical SPR sensor heads on a semiconductor based optoelectronic platform could be a promising solution for those issues, since integrated optical waveguides have highly miniaturized dimension and the optoelectronic platform enables on-chip optical-to-electrical signal conversion. Utilizing a semiconductor based platform to achieve optoelectronic functionality poses requirements to the senor head; the sensor head needs to have reasonably small size while it should have reasonable sensitivity and fabrication tolerance. This research proposes a novel type of SPR sensor head and demonstrates a fabricated …

Go to article

Extended Focus Range High Resolution Endoscopic Optical Coherence Tomography, Kye-Sung Lee Jan 2008

Extended Focus Range High Resolution Endoscopic Optical Coherence Tomography, Kye-Sung Lee

Electronic Theses and Dissertations

Today, medical imaging is playing an important role in medicine as it provides the techniques and processes used to create images of the human body or parts thereof for clinical purposes (medical procedures seeking to reveal, diagnose or examine disease) or medical science (including the study of normal anatomy and function). Modalities are developing over time to achieve the highest possible resolution, speed of image acquisition, sensitivity, and specificity. In the past decade, advances in optics, fiber, as well as laser technology have enabled the development of noninvasive optical biomedical imaging technology that can also be applied to endoscopy to …

Go to article

Turkey In The Caspian Sea Region, Seyma Akkoyunlu Jan 2008

Turkey In The Caspian Sea Region, Seyma Akkoyunlu

Electronic Theses and Dissertations

This thesis will determine the influence of Turkey's domestic resources on Turkey's foreign relations with the five Turkic states in the Caspian Sea Region. The spheres analyzed in this study are the common ties, which are history, culture, religion and language, with the regional countries, pan-Turkism, Turkey's initial interactions as well as ongoing constructive policies in the region. Findings showed that both Turkey and the five Turkic republics were enthusiastic to carry their relations in every field to future cooperation following the break up of the Soviet Union. However the Turkic Republics' interest in Turkish development model gradually declined starting …

Go to article

Oil, Politics Of The Business Environment And The Persian Gulf, Jacob Parks Jan 2008

Oil, Politics Of The Business Environment And The Persian Gulf, Jacob Parks

Electronic Theses and Dissertations

This study investigated the effect the price of oil has on enabling political establishments to maintain their presence within the business environment. The study consists of three different case studies with each of the states (Saudi Arabia, Iran and the United Arab Emirates) being chosen based upon their level of state involvement within the business community. Each case study investigated whether the price of oil had any effect on influencing the amount of political involvement within the business community, property rights or trade freedom. The findings for all three case studies suggest that the price of oil has little to …

Go to article

The Effects Of Foreign Aid On Perceptions Of Corruption In Sub-Saharan Africa, Margaret Wilkie Jan 2008

The Effects Of Foreign Aid On Perceptions Of Corruption In Sub-Saharan Africa, Margaret Wilkie

Electronic Theses and Dissertations

This paper is a study of the effects of foreign aid on perceptions of political corruption in Sub-Saharan Africa. In keeping with the consensus on foreign aid effectiveness, this study proposed that Sub-Saharan African countries receiving more foreign aid would be more likely to maintain high levels of perceived corruption. Hypotheses were tested using multivariate regression, controlling for a number of factors which have shown to be influential on perceptions of political corruption. Two models were tested, one to show the regression over a period of nine years, and the other to show the relationship between the foreign aid and …

Go to article

Am I Too Fat To Be A Princess? Examining The Effects Of Popular Children's Media On Preschoolers' Body Image, Sharon Hayes Jan 2008

Am I Too Fat To Be A Princess? Examining The Effects Of Popular Children's Media On Preschoolers' Body Image, Sharon Hayes

Electronic Theses and Dissertations

The current study investigated the effects of brief exposure to appearance-related media on female preschoolers' body image. Results indicated that exposure did not affect body dissatisfaction or engagement in appearance-related play behaviors. Surprisingly, participants' self-reported frequency of weight concerns decreased at posttest. In contrast to older populations, it is possible that young children may adopt the persona of attractive characters with whom they identify rather than comparing themselves to the characters. This level of identification temporarily may alleviate weight concerns. This is the first empirical study to provide support for previous findings that suggest media exposure does not affect body …

Go to article

Gamma Hydroxybutyrate Use Among College Students: Application Of A Memory Model To Explore The Influence Of Outcome Expectancies, Pamela Brown Jan 2008

Gamma Hydroxybutyrate Use Among College Students: Application Of A Memory Model To Explore The Influence Of Outcome Expectancies, Pamela Brown

Electronic Theses and Dissertations

Gamma Hydroxybutyrate (GHB) was banned from the consumer market by the Food and Drug Administration in 1991. Despite the ban, use of GHB has continued to contribute to thousands of emergency department visits and numerous fatalities in recent years. Efforts to reduce the use of this drug have had limited impact, which may be the result of using traditional prevention strategies that focus exclusively on educating people about of negative consequences of substance use rather than addressing the factors that motivate use. In an effort to identify motivational factors that could be targeted in future prevention efforts, the present study …

Go to article

Hysteresis Effects In Driving, Justin Morgan Jan 2008

Hysteresis Effects In Driving, Justin Morgan

Electronic Theses and Dissertations

This dissertation presents two studies examining the interaction between workload history and driver mental workload. The first experiment focuses on testing for the presence of a hysteresis effect in the driving task. The second experiment examines the proposition that cueing impending periods of higher task demand can reduce the impact of any such potential hysteresis effects. Thirty-two licensed drivers served as participants and all served in both studies. Using the directions provided by a Heads-Up-Display navigation system, participants followed a pre-set route in the simulated environment. At specified points within the drive, the navigation system would purposefully fail which required …

Go to article

Tactile Working Memory And Multimodal Loading, Peter Terrence Jan 2008

Tactile Working Memory And Multimodal Loading, Peter Terrence

Electronic Theses and Dissertations

This work explored the role of spatial grouping, set size, and stimulus probe modality using a recall task for visual, auditory, and tactile information. The effects of different working memory (WM) loading task modalities were also examined. The Gestalt spatial organizing principle of grouping showed improvements in response times for visual and tactile stimulus probes with large set sizes and apparently allowed participants to effectively chunk the information. This research suggests that tactile information may use spatial characteristics typically associated with visual information, as well as sequential characteristics normally associated with verbal information. Based on these results, a reformulation of …

Go to article

Resiliency Factors And Pathways To Incarceration In Female Survivors Of Childhood Sexual Abuse, Kia Asberg Jan 2008

Resiliency Factors And Pathways To Incarceration In Female Survivors Of Childhood Sexual Abuse, Kia Asberg

Electronic Theses and Dissertations

Studies find consistently that survivors of childhood sexual abuse (CSA) are likely to suffer from depression, post-traumatic stress, and problematic substance use, and may experience also a variety of adjustment difficulties in several emotional, behavioral, and interpersonal domains. Involvement with the legal system is one such outcome to consider, especially given the increasing number of women serving time in correctional facilities with nearly two-thirds of these women being survivors of CSA (e.g., Browne, Miller, & Maguin, 1999). The current literature lacks comparisons between female survivors of CSA who have legal involvement and those who do not; hence, the current study …

Go to article

Controlling Our Emotion At Work: Implications For Interpersonal And Cognitive Task Performance In A Customer Service Simulation, Moshe Feldman Jan 2008

Controlling Our Emotion At Work: Implications For Interpersonal And Cognitive Task Performance In A Customer Service Simulation, Moshe Feldman

Electronic Theses and Dissertations

Display rules are used by organizations to define appropriate behaviors and expressions while interacting with others in the workplace. Emotional labor is a function of the effort required to adhere to these display rules and has been associated with negative outcomes such as stress and burnout which can lead to higher levels of turnover and health care costs for the organization. In addition, evidence suggests that emotional labor may come at a cognitive cost as well. Hence, reducing the amount of emotional labor should be beneficial to both employees and organizations alike. The current study used a customer service simulation …

Go to article

First Prev Next Last