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Coherence Properties Of Optical Near-Fields, Adela Apostol Jan 2005

Coherence Properties Of Optical Near-Fields, Adela Apostol

Electronic Theses and Dissertations

Next generation photonics-based technologies will ultimately rely on novel materials and devices. For this purpose, phenomena at subwavelength scales are being studied to advance both fundamental knowledge and experimental capabilities. In this dissertation, concepts specific to near-field optics and experimental capabilities specific to near-field microscopy are used to investigate various aspects of the statistical properties of random electromagnetic fields in the vicinity of optically inhomogeneous media which emit or scatter radiation. The properties of such fields are being characterized within the frame of the coherence theory. While successful in describing the far-field properties of optical fields, the fundamental results of …

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Latinate Word Parts And Vocabulary:Contrasts Among Three Groups Comprisingthe Community College Preparatory Reading Class, Tom Bellomo Jan 2005

Latinate Word Parts And Vocabulary:Contrasts Among Three Groups Comprisingthe Community College Preparatory Reading Class, Tom Bellomo

Electronic Theses and Dissertations

Students enrolled in a college preparatory reading class at one particular community college were categorized based on language origin. Native English speaking students comprised one group and foreign students formed two additional groups--students whose language origin was Latin-based (i.e. Romance languages) and students whose language origin was not Latin-based (i.e. Japanese). A pretest assessment measure was used to quantify the extent that pre-existing knowledge of Latinate word parts and morphologically complex vocabulary differed among groups based on language origin. The identical instrument served as a posttest to measure the extent that direct instruction in morphological analysis resulted in change among …

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A Comparison Of Character Education Programs And Their Effects On Academic Achievement, Behavior, And Attendance, Beth Berger Jan 2005

A Comparison Of Character Education Programs And Their Effects On Academic Achievement, Behavior, And Attendance, Beth Berger

Electronic Theses and Dissertations

The purpose of this study was to determine whether significant relationships existed between character education and the number of incidents of crimes and violence, attendance rates, and academic achievement in Florida public schools. Proponents of character education such as Lickona (1991) and Murphy (1998) posited that there was a positive correlation between teaching and practicing the six pillars of character education, and student achievement, and increased attendance. They also posited that there was a negative correlation between character education and incidents of crime and violence. The researcher acquired data in an attempt to determine whether or not the views of …

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The Relationship Between Teacher Attitudes Toward Florida History And The Methods And Materials The Teachers Use To Teach Florida History, Elizabeth Dewey Jan 2005

The Relationship Between Teacher Attitudes Toward Florida History And The Methods And Materials The Teachers Use To Teach Florida History, Elizabeth Dewey

Electronic Theses and Dissertations

Reacting to an impression that history is not viewed as significant as other curricular subjects such as reading, math, or science, there were multiple purposes for this research: first, to document the attitudes of the fourth grade teachers in one county in Florida towards the subject of Florida history. The teachers' perceptions of the importance of the topic to and for the students, to the administration, and to them personally was surveyed in addition to the perceived preparation of the teachers to teach Florida History. The second purpose was to ascertain the perception of fourth grade teachers regarding preference and …

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Liquid Crystal Materials And Tunable Devices For Optical Communications, Fang Du Jan 2005

Liquid Crystal Materials And Tunable Devices For Optical Communications, Fang Du

Electronic Theses and Dissertations

In this dissertation, liquid crystal materials and devices are investigated in meeting the challenges for photonics and communications applications. The first part deals with polymer-stabilized liquid crystal (PSLC) materials and devices. Three polymer-stabilized liquid crystal systems are developed for optical communications. The second part reports the experimental investigation of a novel liquid-crystal-infiltrated photonic crystal fiber (PCF) and explores its applications in fiber-optic communications. The curing temperature is found to have significant effects on the PSLC performance. The electro-optic properties of nematic polymer network liquid crystal (PNLC) at different curing temperatures are investigated experimentally. At high curing temperature, a high contrast, …

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A Comparison Of The Perceived Leadership Characteristics Of Central Florida Middle And High School Principals And School Achievement Scores, Thomas Fisher Jan 2005

A Comparison Of The Perceived Leadership Characteristics Of Central Florida Middle And High School Principals And School Achievement Scores, Thomas Fisher

Electronic Theses and Dissertations

The purpose of this inquiry was to examine the possible extent to which specific, identifiable leadership characteristics of Central Florida school principals differ between middle and high school administrators, and to examine if these leadership characteristics display a relationship, either positively or negatively, with the obtainment of student scores on state measures of education accountability (FCAT reading scores). Data from the research sample were collected through the administration of a modified version of the Audit of Principal Effectiveness (APE), a survey instrument developed by Dr. Jerry Valentine through the Middle Level Leadership Center at the University of Missouri-Columbia (Valentine & …

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Relationship Of Student Satisfaction Levels In Distance Learning And Traditional Classroom Environments At Embry-Riddle Aeronautical Unviersity, James Gallogly Jan 2005

Relationship Of Student Satisfaction Levels In Distance Learning And Traditional Classroom Environments At Embry-Riddle Aeronautical Unviersity, James Gallogly

Electronic Theses and Dissertations

The purpose of this study was to determine (a) what differences, if any, exist between Embry-Riddle Aeronautical University (ERAU) students enrolled in distance learning and traditional courses during 2004 with regard to their satisfaction with course quality and (b) the level of satisfaction of distance learning students with regard to online delivery technology and administrative services provided to them in distance learning. Data were gathered using information from 400 distance learning undergraduate students using the Distance Learning Student Response Questionnaire (DLSRQ) and 400 traditional undergraduate students using the Student Survey Form (SSF). These students were enrolled in at least one …

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A Healthy Pregnancy Curriculum For Adolescent Mothers: Participants' Perceptions And Effects On Infants' Birth Weight, Rae Konjoian Jan 2005

A Healthy Pregnancy Curriculum For Adolescent Mothers: Participants' Perceptions And Effects On Infants' Birth Weight, Rae Konjoian

Electronic Theses and Dissertations

The purpose of this study was to determine if there are differences in birth weight of infants, tobacco use during pregnancy, and Apgar scores of infants between pregnant adolescents who successfully complete a healthy pregnancy curriculum and those who do not and to further examine the adolescent mothers' perceptions of the major concepts included in a healthy pregnancy curriculum. The study involved the collection and analysis of retrospective data to determine differences in birth weight of infants, tobacco use during pregnancy, and Apgar scores of infants. Additionally, a questionnaire, focus group discussions, and follow-up interviews were conducted with former students …

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A Study Of The Cost-Utility Of Outcomes Of Various Methods Of Increasing The Four-Year Graduation Rate In Osceola County Public Schools, Isaac Harold Berger Jan 2005

A Study Of The Cost-Utility Of Outcomes Of Various Methods Of Increasing The Four-Year Graduation Rate In Osceola County Public Schools, Isaac Harold Berger

Electronic Theses and Dissertations

The purpose of this study was to determine which interventions were deemed to be effective at increasing the four-year graduation rate in Osceola District Schools. This had become a concern due to the fact that this rate had decreased in recent years, and may be utilized as a predictor of the dropout rate. The interventions were then prioritized according to Levin's cost-utility theory, so that the order of implementation could be prioritized. The study was conducted in January and February of 2005, and responses were elicited from 600 people. Students currently in Osceola District Schools high schools comprised 200 of …

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The Public Policy Implications Of Audit Regulation: Three Studies Related To The Passage Of The Sarbanes-Oxley Act Of 2002, Steven Thornburg Jan 2005

The Public Policy Implications Of Audit Regulation: Three Studies Related To The Passage Of The Sarbanes-Oxley Act Of 2002, Steven Thornburg

Electronic Theses and Dissertations

This dissertation documents and evaluates certain financial and non-financial strategies used by the public accounting profession to influence audit regulation during the policy formation period of the Sarbanes-Oxley Act of 2002 (SOX). The dissertation is comprised of three separate, but related studies. Each study uses prior research in accounting and related disciplines to investigate significant aspects the profession's strategies. The first study evaluates the rationality and effectiveness of political action committee (PAC) contributions paid by the accounting profession to members of Congress. The study finds that the accounting profession rationally allocated more PAC contributions to top congressional leaders and to …

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University Of Central Florida Commencement, December 13 & 14, 2004, University Of Central Florida Dec 2004

University Of Central Florida Commencement, December 13 & 14, 2004, University Of Central Florida

Commencement Programs

No abstract provided.

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Illuminations, Fall Issue, November 2004, Ucf Libraries Nov 2004

Illuminations, Fall Issue, November 2004, Ucf Libraries

Libraries' Newsletters

No abstract provided.

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Sandspur, Vol 111, No 07, October 15, 2004, Rollins College Oct 2004

Sandspur, Vol 111, No 07, October 15, 2004, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

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Cognitive Packet Network, Erol Gelenbe Oct 2004

Cognitive Packet Network, Erol Gelenbe

UCF Patents

A method of packet switching the packets in a data packet communication environment having a plurality of digital packet transmission stations interconnectable in paths. The steps include causing a first digital packet transmission of a smart data packet at a first end to send one or more smart data packets having a learning algorithm therein for learning a path to a second digital packet transmission station at a second end and then causing an acknowledgement packet to be sent from the second end having a learning path of the smart data packet from the first end to the second end …

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Filtered Back Projection (Fbp) Algorithm For Computer Tomography [Div], Alexander Katsevich Oct 2004

Filtered Back Projection (Fbp) Algorithm For Computer Tomography [Div], Alexander Katsevich

UCF Patents

Reconstructing images of objects spirally scanned with two-dimensional detectors with a novel algorithm. The image reconstruction process is proven to create an exact image of the object under the ideal circumstances. The algorithm has an FBP (Filtered Back Projection) structure and works very efficiently. The algorithm uses less computer power and combines the benefits of Exact Algorithms and Approximate algorithms.

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The Learning Marketspace, October 2004, Bob Heterick, Carol Twigg Oct 2004

The Learning Marketspace, October 2004, Bob Heterick, Carol Twigg

The Learning MarketSpace (4/03 - 4/14)

No abstract provided.

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Method Of Reconstructing Images For Spiral And Non-Spiral Computer Tomography, Alexander Katsevich Aug 2004

Method Of Reconstructing Images For Spiral And Non-Spiral Computer Tomography, Alexander Katsevich

UCF Patents

General scheme processes and systems for constructing algorithms for reconstructing images of objects that have been scanned in a spiral or non-spiral fashions with detectors. Application of the scheme requires finding of a weight function, which would lead to the required reconstruction algorithm. This general scheme can use a C-arm scan with the closed x-ray source trajectory and gives a new, theoretically exact and efficient (i.e., with the convolution-based FBP structure) reconstruction algorithm. The invention can also utilize the algorithms disclosed in an earlier application U.S. application Ser. No. 10/143,160 filed May 10, 2002, entitled: Exact Filtered Back Projection (FBP) …

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University Of Central Florida Undergraduate Catalog, 2004 - 2005, University Of Central Florida May 2004

University Of Central Florida Undergraduate Catalog, 2004 - 2005, University Of Central Florida

UCF Catalogs

No abstract provided.

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University Of Central Florida Graduate Catalog, 2004 - 2005, University Of Central Florida May 2004

University Of Central Florida Graduate Catalog, 2004 - 2005, University Of Central Florida

UCF Catalogs

No abstract provided.

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The Learning Marketspace, April 2004, Bob Heterick, Carol Twigg Apr 2004

The Learning Marketspace, April 2004, Bob Heterick, Carol Twigg

The Learning MarketSpace (4/03 - 4/14)

No abstract provided.

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Automatic Motion Modeling Of Rigid Bodies Using Collision Detection, Jannick Rolland, Yoahan Baillot Mar 2004

Automatic Motion Modeling Of Rigid Bodies Using Collision Detection, Jannick Rolland, Yoahan Baillot

UCF Patents

An algorithim for modeling the interaction of two colliding rigid objects. The algorithm allows the search of the optimal position and stabilization of two rigid objects when they are in contact due to a force pushing them against each other. The method does use mathematical integration and does not use any initial acceleration or speed conditioning for the results. The pushing direction can be changed at any time of the search for a correct specification. The moving solid is translated and rotated incrementally toward the equilibrium position and orientation in a non-natural way but leading to the same final attitude …

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Sandspur, Vol 110, No 18, March 05, 2004, Rollins College Mar 2004

Sandspur, Vol 110, No 18, March 05, 2004, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

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Central Florida Future, Vol. 36 No. 42, February 12, 2004 Feb 2004

Central Florida Future, Vol. 36 No. 42, February 12, 2004

Central Florida Future

As campus cuts continue literary magazine fends for itself; Health Center begins online house calls; UCF nonplussed: Candidates weigh in on classroom grading scale; Candidate forum planned for noon today at Union; Provost turns publisher: Hickey debuts a newsletter to debunk 'myths.'

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Central Florida Future, Vol. 36 No. 39, February 2, 2004 Feb 2004

Central Florida Future, Vol. 36 No. 39, February 2, 2004

Central Florida Future

Football players rushing to campus; Off and Running: Three slates vie to lead SGA; What does the SGA president do anyway? Writing Center services gradually disappearing.

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Study Of The Excited-State Absorption Properties Of Polymethine Molecules, Richard Stanley Lepkowicz Jan 2004

Study Of The Excited-State Absorption Properties Of Polymethine Molecules, Richard Stanley Lepkowicz

Electronic Theses and Dissertations

This dissertation investigates excited-state nonlinearities in a series of polymethine dyes for the application of nanosecond optical limiting. Optical limiters are devices that for low intensity light exhibit a high linear transmittance, but for high intensity light strongly attenuate the incident radiation. These devices would serve to protect optical sensors from intense laser radiation by clamping the maximum energy allowed through an optical system below the damage threshold of the sensor. The search is ongoing for optical materials that are both broadband and have high damage thresholds to be effective materials for limiting applications. Polymethine dyes are promising compounds due …

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Image Quality Analysis Using Glcm, Dhanashree Gadkari Jan 2004

Image Quality Analysis Using Glcm, Dhanashree Gadkari

Electronic Theses and Dissertations

Gray level co-occurrence matrix has proven to be a powerful basis for use in texture classification. Various textural parameters calculated from the gray level co-occurrence matrix help understand the details about the overall image content. The aim of this research is to investigate the use of the gray level co-occurrence matrix technique as an absolute image quality metric. The underlying hypothesis is that image quality can be determined by a comparative process in which a sequence of images is compared to each other to determine the point of diminishing returns. An attempt is made to study whether the curve of …

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The Learning Marketspace, January 2004, Bob Heterick, Carol Twigg Jan 2004

The Learning Marketspace, January 2004, Bob Heterick, Carol Twigg

The Learning MarketSpace (4/03 - 4/14)

No abstract provided.

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The Use Of Filters In Topology, Abdellatif Dasser Jan 2004

The Use Of Filters In Topology, Abdellatif Dasser

Electronic Theses and Dissertations

Sequences are sufficient to describe topological properties in metric spaces or, more generally, topological spaces having a countable base for the topology. However, filters or nets are needed in more abstract spaces. Nets are more natural extension of sequences but are generally less friendly to work with since quite often two nets have distinct directed sets for domains. Operations involving filters are set theoretic and generally certain to filters on the same set. The concept of a filter was introduced by H. Cartan in 1937 and an excellent treatment of the subject can be found in N. Bourbaki (1940).

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Macmahon's Master Theorem And Infinite Dimensional Matrix Inversion, Vivian Lola Wong Jan 2004

Macmahon's Master Theorem And Infinite Dimensional Matrix Inversion, Vivian Lola Wong

Electronic Theses and Dissertations

MacMahon's Master Theorem is an important result in the theory of algebraic combinatorics. It gives a precise connection between coefficients of certain power series defined by linear relations. We give a complete proof of MacMahon's Master Theorem based on MacMahon's original 1960 proof. We also study a specific infinite dimensional matrix inverse due to C. Krattenthaler.

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The Removal Of Motion Artifacts From Non-Invasive Blood Pressure Measurements, Paresh Thakkar Jan 2004

The Removal Of Motion Artifacts From Non-Invasive Blood Pressure Measurements, Paresh Thakkar

Electronic Theses and Dissertations

Modern Automatic Blood Pressure Measurement Techniques are based on measuring the cuff pressure and on sensing the pulsatile amplitude variations. These measurements are very sensitive to motion of the patient or the surroundings where the patient is. The slightest unexpected movements could offset the readings of the automatic Blood Pressure meter by a large amount or render the readings totally meaningless. Every effort must be taken to avoid subjecting the body of the patient or the patient's surroundings to motion for obtaining a reliable reading. But there are situations in which we need Blood Pressure Measurements with the patient or …

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