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- Title
- A STUDY OF BLACK-WHITE MALE INCOME DIFFERENTIALS - 1950, 1960, 1970.
- Creator
- BOLES, KEITH EDWIN., Florida Atlantic University, Hemley, David D., College of Business, Department of Economics
- Abstract/Description
-
Alternative models to explain the variability in income differentials. between Black males and White males over thirty-two Standard Metropolitan Statistical Areas (SMSAs) were estimated by ordinary least squares using cross-sectional data for each of three points in time - 1950, 1960, and 1970. Two models were tested for each time period . The Becker-type model used a Black-White male median income ratio as a dependent variable with age, education, three occupational mix variables, and...
Show moreAlternative models to explain the variability in income differentials. between Black males and White males over thirty-two Standard Metropolitan Statistical Areas (SMSAs) were estimated by ordinary least squares using cross-sectional data for each of three points in time - 1950, 1960, and 1970. Two models were tested for each time period . The Becker-type model used a Black-White male median income ratio as a dependent variable with age, education, three occupational mix variables, and current population as the independent variables. The second model used the same variables with the exception that current population was replaced by population lagged ten years. All variables were in Black-White ratio form. The results are of interest to the student of the economics of discrimination, since the methodology can be applied to the examination and comparison between any two categories of people.
Show less - Date Issued
- 1973
- PURL
- http://purl.flvc.org/fcla/dt/13562
- Subject Headings
- Income distribution--United States--Statistics, Income distribution--United States--Mathematical models, African Americans--Economic conditions
- Format
- Document (PDF)
- Title
- Study of Cell Penetrating Peptide Uptake and Cancer Cell Discrimination with Raman Spectroscopy and Microscopy.
- Creator
- Cosme, Patrick Jason, Terentis, Andrew C., Florida Atlantic University, Charles E Schmidt College of Science, Department of Chemistry and Biochemistry
- Abstract/Description
-
Cell penetrating peptides (CPPs) are short sequences of amino acids that excel in crossing the cellular membrane without inducing cytotoxicity Interest in these peptides stem from their ability to be attached, and grant their penetrating properties to, a variety of cargo In this work we have combined the application of Confocal Raman Microscopy (CRM) and Atomic Force Microscopy for the first time to examine the interactions of unlabeled Transportan (TP), one of the most well studied CPPs,...
Show moreCell penetrating peptides (CPPs) are short sequences of amino acids that excel in crossing the cellular membrane without inducing cytotoxicity Interest in these peptides stem from their ability to be attached, and grant their penetrating properties to, a variety of cargo In this work we have combined the application of Confocal Raman Microscopy (CRM) and Atomic Force Microscopy for the first time to examine the interactions of unlabeled Transportan (TP), one of the most well studied CPPs, with mammalian cells CRM’s capability to discriminate control and treated cell groups was verified by principal component analysis (PCA) and linear discriminant analysis (LDA) and was 93-100% accurate We’ve determined that at a concentration of 20 μM TP enters cells through a non-endocytotic mechanism, has a high affinity for the cytoplasm and membranes, and results in a significant increase in cellular stiffness Our work provides the first direct evidence of this cell-stiffening phenomenon SFTI-1, the smallest member of a bicyclic, cysteine rich class of CPPs, was examined by CRM to determine the potential role of cyclic structure on cellular uptake The peptide, along with monocyclic and linear analogs was heavy isotope labeled and incubated with mammalian cells at numerous concentrations and timespans Our work is the first SFTI-1 uptake study forgoing the use of fluorophore conjugates, which have been linked to artificial cellular uptake We demonstrate herein the absence of any CRM detectable uptake, providing the first evidence that SFTI-1 may not be a CPP Finally, CRM was applied to the discrimination of normal and basal cell carcinoma cells obtained from the same donor The use of patient matched cells avoids the normal biochemical variations that exist among individuals, ensuring that discrimination is based solely on the cell’s diseased state CRM spectra, analyzed by PCA and LDA, were capable of spectral discrimination with 100% accuracy Major differences in the cancerous cells were an increase in lipids and nucleic acids, and an overall decrease in protein We also demonstrate an enhancement in Raman signal through the use of an aluminum foil substrate, providing a practical approach for measuring cells with thin morphologies
Show less - Date Issued
- 2016
- PURL
- http://purl.flvc.org/fau/fd/FA00004756
- Subject Headings
- Peptides--Analysis, Peptides--Therapeutic use, Peptides--Physiological transport, Cellular signal transduction, Raman spectroscopy, Infrared spectroscopy
- Format
- Document (PDF)
- Title
- Study of cell penetrating peptides with Raman spectroscopy and microscopy.
- Creator
- Ye, Jing., Charles E. Schmidt College of Science, Department of Chemistry and Biochemistry
- Abstract/Description
-
Cell penetrating peptides (CPPs) have drawn the attention of researchers due to their ability to internalize large cargos into cells including cancer cells. The mechanism(s) with which the peptides enter the cell, however, is/are not clear and full of controversy. The peptide conformations and their microenvironment in live cells had been unknown until the development of a technique developed in our lab. As a first demonstration of principle, penetratin, a 16-residue CPP derived from the...
Show moreCell penetrating peptides (CPPs) have drawn the attention of researchers due to their ability to internalize large cargos into cells including cancer cells. The mechanism(s) with which the peptides enter the cell, however, is/are not clear and full of controversy. The peptide conformations and their microenvironment in live cells had been unknown until the development of a technique developed in our lab. As a first demonstration of principle, penetratin, a 16-residue CPP derived from the Antennapedia homeodomain protein of Drosophila, was measured in single, living melanoma cells. Carbon-13 labeling of the Phe residue of penetratin was used to shift the intense aromatic ring-breathing vibrational mode from 1003 to 967 cm-1, thereby enabling the peptide to be traced in cells. Difference spectroscopy and principal components analysis (PCA) were used independently to resolve the Raman spectrum of the peptide from the background cellular Raman signals., On the basis of the position of the amide I vibrational band in the Raman spectra, the secondary structure of the peptide was found to be mainly random coil and b-strand in the cytoplasm, and possibly assembling as b-sheets in the nucleus. Next, label-free transportan was studied with the same methodology. The peptide, besides predominantly a-helix, adopted a significant portion of b-sheet conformation in the cytoplasm and nucleolus, which is different from the peptide in aqueous solution. The peptide microenvironment was also probed through H-bonding reported by the tyrosine Fermi doublet. Transportan displayed a tendency to accumulate in the cytoplasm over time which was unlike penetratin, which concentrated in the nucleus. The relative concentration of CPPs in various locations of live melanoma cells was directly estimated from the Raman spectra using average Phe concentration in the cell as an internal standard., The rapid entry and almost uniform cellular distribution of both peptides, as well as the lack of correlation between peptide and lipid Raman signatures, indicated that the mechanism of CPP internalization under the conditions of study was probably non-endocytotic. Last, transportan and penetratin were studied using polarized Raman spectroscopy for more detailed vibrational spectroscopic information of the two peptides in water and TFE solutions. The majority of the bands in the Raman spectra of the peptides were highly polarized, consistent with the high symmetry of aromatic ring side chain vibrational bands dispersed throughout the spectra. This work has provided new insights into the structure of CPPs in live cells and in solutions.
Show less - Date Issued
- 2011
- PURL
- http://purl.flvc.org/FAU/3342344
- Subject Headings
- Peptides, Analysis, Infrared spectroscopy, Raman spectroscopy, Cellular signal transduction
- Format
- Document (PDF)
- Title
- A STUDY OF COMMUNITY EDUCATION PARTICIPATION AND SELECTED VARIABLES AND THEIR RELATIONSHIP TO AN INDIVIDUAL'S ATTITUDES TOWARD THE PUBLIC SCHOOLS.
- Creator
- GEHRET, EDWARD F., Florida Atlantic University, Kerensky, Vasil M.
- Abstract/Description
-
The purpose of the study was to determine the role participation and other selected variables (i.e., age, sex, race, education, etc.) play in an individual's attitude toward the public schools. The research was conducted in the community of Dade County, Florida, utilizing forty-one of the fifty-eight school centers designated as Community Schools. Hypotheses. (1) There is no significant difference in the mean attitude scores based upon participation groups at the .05 level of significance. (2...
Show moreThe purpose of the study was to determine the role participation and other selected variables (i.e., age, sex, race, education, etc.) play in an individual's attitude toward the public schools. The research was conducted in the community of Dade County, Florida, utilizing forty-one of the fifty-eight school centers designated as Community Schools. Hypotheses. (1) There is no significant difference in the mean attitude scores based upon participation groups at the .05 level of significance. (2) There is no significant difference in the mean attitude scores of Community School groups by years of Community Education implementation at the .05 level of significance. (3) There is no linear relationship between attitude scores and the stated demographic variables at the .05 level of significance. (4) There is no significant differences in the perceived influence of participation between the defined participation groups at the .05 level of significance. Results of the Study. Hypothesis Number 1 - the null hypothesis was rejected. Hypothesis Number 2 - the null hypothesis was not rejected. Hypothesis Number 3 - the null hypothesis was rejected. Hypothesis Number 4 - the null hypothesis was not rejected. The significant demographic variables are: race, children in school, marital status, and occupation. An R('2) test of significance discloses that 12.25 percent of the variability in the dependent variable can be accounted for by the demographic and participation variables. Conclusions. (1) Residents within Dade County, who participated in the Community Education registration of September 1981, generally have positive attitudes toward the public schools. (2) The more positive attitudes were found among respondents who had had some sort of K-12 related participation experiences. (3) School related participation, whether it was Community School or K-12 types of experiences, produces positive attitudes toward the public schools. (4) Private school parents have significantly lower attitudes toward the public schools. (5) Skilled laborers have significantly more positive attitudes toward the public schools. Implications. (1) The research results and the review of the literature suggest the need for additional attitudinal change strategies once participation has begun. (2) The process of Community Education holds the promise of attitudinal change. Programs alone hold very little hope for positive attitude gains.
Show less - Date Issued
- 1982
- PURL
- http://purl.flvc.org/fcla/dt/11813
- Subject Headings
- Community and school--Florida--Miami-Dade County, Community schools--Florida--Miami-Dade County
- Format
- Document (PDF)
- Title
- A study of community-based organizations and their ability to remedy political alienation and social isolation.
- Creator
- Brown, Tara-Lynn., Florida Atlantic University, Turner, Robyne, Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
- Abstract/Description
-
Many inner-city neighborhoods face a vast array of social and economic problems. These problems are partly due to crime and the lack of employment, housing & communication with local government. Likewise, participation in the political system is low within these neighborhoods as well. As a result, feelings of political alienation & social isolation may be found. This body of work tests for the presence of political alienation & social isolation within community-based organizations (CBOs) of...
Show moreMany inner-city neighborhoods face a vast array of social and economic problems. These problems are partly due to crime and the lack of employment, housing & communication with local government. Likewise, participation in the political system is low within these neighborhoods as well. As a result, feelings of political alienation & social isolation may be found. This body of work tests for the presence of political alienation & social isolation within community-based organizations (CBOs) of West Palm Beach, FL. By looking at the presence and formation of CBOs, this work will measure if CBOs can remedy feelings of alienation & isolation, increase political participation & impact government policy-making.
Show less - Date Issued
- 1995
- PURL
- http://purl.flvc.org/fcla/dt/15205
- Subject Headings
- Inner cities--Florida--West Palm Beach, Community organization, African Americans--Social conditions, Political participation--Florida--West Palm Beach, Alienation (Social psychology)
- Format
- Document (PDF)
- Title
- A study of conjugated monoclonal antibodies in an immunoassay for fish species identification.
- Creator
- Yu, Wenjie, Florida Atlantic University, Hartmann, James X.
- Abstract/Description
-
Atlantic billfishes (family Istiophoridae) are overexploited and often illegally harvested. To address both of these problems, a rapid means of identifying billfish carcasses is needed. This thesis describes a simple and rapid Nalge Nunc-Immuno(TM) Stick-based direct sandwich assay for sailfish identification that can be performed in the field. A species-specific anti-sailfish monoclonal antibody, covalently bound to the Nalge Nunc-Immuno(TM) Stick's polystyrene surface, was used to capture a...
Show moreAtlantic billfishes (family Istiophoridae) are overexploited and often illegally harvested. To address both of these problems, a rapid means of identifying billfish carcasses is needed. This thesis describes a simple and rapid Nalge Nunc-Immuno(TM) Stick-based direct sandwich assay for sailfish identification that can be performed in the field. A species-specific anti-sailfish monoclonal antibody, covalently bound to the Nalge Nunc-Immuno(TM) Stick's polystyrene surface, was used to capture a biomarker molecule---serum albumin---from sailfish tissue samples. This antibody-antigen interaction was visualized by utilizing peroxidase-conjugated anti-billfish monoclonal antibodies or polyclonal antibodies together with a precipitating substrate. This technique successfully differentiated between sailfish and other fishes within 15 minutes, with a high degree of sensitivity and accuracy. This assay has many potential applications for species identification.
Show less - Date Issued
- 2000
- PURL
- http://purl.flvc.org/fcla/dt/15794
- Subject Headings
- Monoclonal antibodies, Fishes--Identification, Fishes--Immunology
- Format
- Document (PDF)
- Title
- A STUDY OF CONTROL THROUGH A MANAGEMENT BY OBJECTIVES SYSTEM IN THE AMERICAN RED CROSS.
- Creator
- ROSS, WILLIAM CLYDE., Florida Atlantic University, Stephenson, Samuel S.
- Abstract/Description
-
This was prepared as the thesis required for the Master of Business Administration degree. Very little had been written on the management of voluntary organizations. The American Red Cross currently uses a system termed Objectives and Goals to establish priorities of service and periodically measure accomplishments. The problem area was whether the fundamental concepts of management by objectives as applied to the system used by the organization accomplished the measurement and correction of...
Show moreThis was prepared as the thesis required for the Master of Business Administration degree. Very little had been written on the management of voluntary organizations. The American Red Cross currently uses a system termed Objectives and Goals to establish priorities of service and periodically measure accomplishments. The problem area was whether the fundamental concepts of management by objectives as applied to the system used by the organization accomplished the measurement and correction of the performance of staff through a system of control. Secondary research concentrated on common practice and theory of the function of control and the system of management by objectives. Current manuals and instructions on Objectives and Goals issued by the American Red Cross were used for comparison. It was found that this system has the basic format of management by objectives but, as practiced, does not appear to function as a process of control.
Show less - Date Issued
- 1973
- PURL
- http://purl.flvc.org/fcla/dt/13583
- Subject Headings
- Management by objectives--Case studies, American National Red Cross
- Format
- Document (PDF)
- Title
- Study of controlled burn effects on Avian population and diversity in Jonathan Dickinson State Park.
- Creator
- Shattow, Katherine, Moore, Jon, Harriet L. Wilkes Honors College
- Abstract/Description
-
This study examines the effects of controlled burning on avian population and diversity in various habitats at Jonathan Dickinson State Park. My hypothesis was that areas more recently burned would have both greater avian population and diversity than areas burned longer ago.
- Date Issued
- 2013
- PURL
- http://purl.flvc.org/fau/fd/FA00003534
- Format
- Document (PDF)
- Title
- Study of corrosion-induced failure mechanisms of epoxy-coated reinforcing steel.
- Creator
- Lee, Seung-Kyoung, Florida Atlantic University, Hartt, William H., McIntyre, Jack F., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
- Abstract/Description
-
A study of the corrosion protection afforded by epoxy coatings on reinforcing steel was performed. To accomplish this bars were acquired from ten sources and coatings were characterized in terms of defects, thickness, solvent extraction weight loss and hardness. Testing involved exposure in various aqueous solutions at both ambient temperature and 80$\sp\circ$C and in chloride-contaminated concrete slabs under outdoor exposure. Direct pull-off adhesion testing was performed on tested and...
Show moreA study of the corrosion protection afforded by epoxy coatings on reinforcing steel was performed. To accomplish this bars were acquired from ten sources and coatings were characterized in terms of defects, thickness, solvent extraction weight loss and hardness. Testing involved exposure in various aqueous solutions at both ambient temperature and 80$\sp\circ$C and in chloride-contaminated concrete slabs under outdoor exposure. Direct pull-off adhesion testing was performed on tested and virgin epoxy coated reinforcing steels (ECRs). Electrochemical impedance spectroscopy (EIS) scans were made periodically, and a curve fitting technique was employed to analyze coating parameters. Conventional electrochemical measurements were also made, and corrosion morphology of ECR specimens was examined. It was found that the density and size of coating defects was the primary factor affecting ECR performance. The circuit analysis indicated that poorly performing defect-free coatings absorbed water and oxygen; and these species reached the coating/substrate interface and electrochemical reactions at the interface caused coating degradation. By way of contrast, the impedance response for well-performing ECR specimens showed no signs of active degradation at the interface although diffusional processes similar to those noted for poorly performing bars occurred here also. Experimental results indicated a relationship between corrosion behavior and bar source. Weight loss upon solvent extraction correlated with impedance reduction from hot water exposure. Coating defects developed during most of the tests, especially in high pH solutions containing chloride ions. ECRs with excessive coating defects, either initially present or ones which developed in service, performed poorly in every test category regardless of source. Forms of coating failure were extensive rusting at defects, blistering, wet adhesion loss, cathodic delamination, underfilm corrosion and coating cracks. These occurred sequentially or concurrently, depending on the condition of the ECR and nature of the environment.
Show less - Date Issued
- 1994
- PURL
- http://purl.flvc.org/fcla/dt/12389
- Subject Headings
- Corrosion and anti-corrosives, Epoxy coatings, Steel--Corrosion, Concrete--Corrosion
- Format
- Document (PDF)
- Title
- A study of divisors and algebras on a double cover of the affine plane.
- Creator
- Bulj, Djordje., Charles E. Schmidt College of Science, Department of Mathematical Sciences
- Abstract/Description
-
An algebraic surface defined by an equation of the form z2 = (x+a1y) ... (x + any) (x - 1) is studied, from both an algebraic and geometric point of view. It is shown that the surface is rational and contains a singular point which is nonrational. The class group of Weil divisors is computed and the Brauer group of Azumaya algebras is studied. Viewing the surface as a cyclic cover of the affine plane, all of the terms in the cohomology sequence of Chase, Harrison and Roseberg are computed.
- Date Issued
- 2012
- PURL
- http://purl.flvc.org/FAU/3355618
- Subject Headings
- Algebraic number theory, Geometry, Data processing, Noncommutative differential geometry, Mathematical physics, Curves, Algebraic, Commutative rings
- Format
- Document (PDF)
- Title
- Study of edge effects in laminated sandwich specimens.
- Creator
- Mankuzhy, Pradeep Prabhakaran., Florida Atlantic University, Merry, Stephanie L., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
- Abstract/Description
-
Different methods have been employed to calculate the interlaminar stresses and to study the edge effect in a laminated sandwich specimens under uniaxial tension. However, Finite Element Analysis and Force Balance Method produced stress values which disagreed in both magnitude and sign, a controversy which exists in the case of composite laminates also. Experimental methods, photoelastic coating method and strain gaging, were attempted to obtain the strain distribution on the top surface of a...
Show moreDifferent methods have been employed to calculate the interlaminar stresses and to study the edge effect in a laminated sandwich specimens under uniaxial tension. However, Finite Element Analysis and Force Balance Method produced stress values which disagreed in both magnitude and sign, a controversy which exists in the case of composite laminates also. Experimental methods, photoelastic coating method and strain gaging, were attempted to obtain the strain distribution on the top surface of a sandwich specimen in three point bending. However, these conventional methods failed to show the sharp strain gradient that exists near the free edge. The Force Balance Method was simplified for sandwich specimens by considering the face laminate as a homogeneous and orthotropic material with averaged properties. Simplified expressions were also obtained for calculating the boundary layer thickness. The boundary layer thickness was found to vary linearly with core thickness for the cases considered.
Show less - Date Issued
- 1989
- PURL
- http://purl.flvc.org/fcla/dt/14523
- Subject Headings
- Sandwich construction--Fatigue, Composite materials, Strains and stresses, Structural analysis (Engineering)
- Format
- Document (PDF)
- Title
- STUDY OF ELECTROCHEMISTRY MODIFICATIONS WITHIN CATHODICALLY PROTECTED FATIGUE CREVICES IN 3% SODIUM-CHLORIDE - DISTILLED WATER SOLUTION AND SEAWATER.
- Creator
- RAJPATHAK, SHIRISH SHRIDHAR., Florida Atlantic University, Hartt, William H., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
- Abstract/Description
-
It is well recognized that the electrochemistry modifications within cathodically protected fatigue crevices in seawater has pronounced effect on crack growth rate. This study focuses its attention on potential distribution within simulated fatigue crevice as a function of electrolyte velocity, fatigue frequency and cathodic protection potential. Results of salt water electrolyte and seawater electrolyte are compared to bring about the effect of calcareous deposits, Finally, a mathematical...
Show moreIt is well recognized that the electrochemistry modifications within cathodically protected fatigue crevices in seawater has pronounced effect on crack growth rate. This study focuses its attention on potential distribution within simulated fatigue crevice as a function of electrolyte velocity, fatigue frequency and cathodic protection potential. Results of salt water electrolyte and seawater electrolyte are compared to bring about the effect of calcareous deposits, Finally, a mathematical model based on mass transfer laws is developed to rationalise potential distribution trends within fatigue crevice and are compared with the observed behaviour.
Show less - Date Issued
- 1983
- PURL
- http://purl.flvc.org/fcla/dt/14151
- Subject Headings
- Cathodic protection, Metals--Corrosion fatigue, Sea-water corrosion
- Format
- Document (PDF)
- Title
- A STUDY OF FACTORS AFFECTING THE SUCCESS OF COMPUTER-ASSISTED INSTRUCTION IN SELECTED COLLEGES AND UNIVERSITIES.
- Creator
- POTTS, ANN SHOEMAKER, Florida Atlantic University
- Abstract/Description
-
The purpose of this study was to identify the factors affecting the success of computer-assisted instruction (CAI) programs in selected colleges and universities. Related questions of interest were posed and answered: What are the greatest problems or obstacles encountered in establishing a CAI program? What incentives are offered to faculty members who develop CAI curriculum materials? Do programs stand better chances for success when initiated by top level administrators? Are faculty...
Show moreThe purpose of this study was to identify the factors affecting the success of computer-assisted instruction (CAI) programs in selected colleges and universities. Related questions of interest were posed and answered: What are the greatest problems or obstacles encountered in establishing a CAI program? What incentives are offered to faculty members who develop CAI curriculum materials? Do programs stand better chances for success when initiated by top level administrators? Are faculty attitudes deemed important factors in successful implementation? The study concluded with several recommendations, two of which follow: (1) A national coordinating agency for instructional computing should be established; and (2) college and university administrators should implement computer literacy courses and require them of all students. It was also recommended that future researchers might determine the following: (1) The nature of computer literacy courses in a sampling of schools and the value of the courses in the lives of recent graduates, and (2) if extensive instructional computing facilities in a college or university help attract outstanding students and faculty members.
Show less - Date Issued
- 1979
- PURL
- http://purl.flvc.org/fcla/dt/11737
- Subject Headings
- Computer-assisted instruction
- Format
- Document (PDF)
- Title
- A study of four public higher education institutions in Florida: The relationships between faculty and administrator goal congruence, faculty productivity and job satisfaction.
- Creator
- Provost, Maria W., Florida Atlantic University, Acker-Hocevar, Michele A.
- Abstract/Description
-
This study focuses on goal congruence between faculty and administrators, and how that congruence, negative or positive, is related to faculty productivity and faculty job satisfaction. Specifically, this study (a) examines and assesses goal congruence among faculty and administrators, (b) examines and assesses relationships between goal congruence and faculty productivity, and (c) determines how goal congruence was related to faculty job satisfaction. Finally, this study examines and...
Show moreThis study focuses on goal congruence between faculty and administrators, and how that congruence, negative or positive, is related to faculty productivity and faculty job satisfaction. Specifically, this study (a) examines and assesses goal congruence among faculty and administrators, (b) examines and assesses relationships between goal congruence and faculty productivity, and (c) determines how goal congruence was related to faculty job satisfaction. Finally, this study examines and assesses relationships between faculty productivity and faculty job satisfaction. The population for this study was the faculty, and college and departmental administrators in four of the ten public universities in Florida (USF, FAU, UCF, and FIU). College deans, associate deans, chairpersons, program directors, and tenured or tenure track faculty members were identified in eight disciplines (business administration, computer engineering, computer science, electrical engineering, English, mathematics, physics and teacher education) from each of the universities that were selected. The researcher designed the instrument used for this study. The instrument was pilot-tested in departments and colleges not examined in the dissertation study. Research findings and conclusions were that there is goal congruence between personal importance and perceived university importance of institutional mission goals for both faculty and administrators. This research found goal congruence between faculty and administrators for five, highly important "quality" goals. Faculty reported relationships for four institutional mission goals, while administrators reported congruence in common with those of faculty, and an additional four university mission goals. There were significant differences between faculty and administrators' personal importance for only one goal, while differences between faculty and administrator perceived importance were significant for four institutional mission goals. There is a relationship between faculty productivity and faculty job satisfaction for three mission goals. Congruence between faculty's and administrators' personal importance and perceived university importance of institutional mission goals is related to faculty job satisfaction and faculty productivity.
Show less - Date Issued
- 2005
- PURL
- http://purl.flvc.org/fau/fd/FADT12127
- Subject Headings
- Universities and colleges--Florida--Administration, Teachers--Job satisfaction, Education, Higher--Aims and objectives--Florida, Organizational behavior
- Format
- Document (PDF)
- Title
- A STUDY OF FRICTION DAMPING AS APPLIED TO VIBRATING STRUCTURES.
- Creator
- DESAI, VIJAY R., Florida Atlantic University, Cuschieri, Joseph M.
- Abstract/Description
-
Of the many methods of introducing damping in vibrating structures, the dissipation of energy due to interfacial slip can significantly increase the damping loss factor. However, because of the lack of understanding and other phenomena such as fretting corrosion and loss of structural rigidity, friction damping is rarely used. A study was thus undertaken to investigate this complex phenomenon, with emphasis on trying to gain a better understanding of friction damping with certain parameters...
Show moreOf the many methods of introducing damping in vibrating structures, the dissipation of energy due to interfacial slip can significantly increase the damping loss factor. However, because of the lack of understanding and other phenomena such as fretting corrosion and loss of structural rigidity, friction damping is rarely used. A study was thus undertaken to investigate this complex phenomenon, with emphasis on trying to gain a better understanding of friction damping with certain parameters such as clamping pressure, frequency, magnitude of excitation and surface finish. Although the non-linearities associated with friction makes this mechanism difficult to model mathematically, finite element (FE) analysis shows some promise. Although the results obtained using an FE model were not exactly comparable to the experimental results, these analytical results did show the same general trends as observed in the experiments.
Show less - Date Issued
- 1987
- PURL
- http://purl.flvc.org/fcla/dt/14369
- Subject Headings
- Damping (Mechanics), Vibration
- Format
- Document (PDF)
- Title
- A STUDY OF GRADUATES OF DISTRIBUTIVE EDUCATION MIDDLE MANAGEMENT PROGRAMSAT NINE COMMUNITY COLLEGES.
- Creator
- GILDAN, KATHLEEN Y., Florida Atlantic University, Buckner, Leroy M.
- Abstract/Description
-
This study is a follow-up survey of graduates of the Distributive Education Middle Management. Programs in nine Florida community /junior colleges for the period 1966 - 1972. The purpose of the study was to evaluate the effectiveness of the program in meeting the career objectives of the graduates. The Distributive Education Middle Management Program is designed to prepare persons for middle management and specialist positions in the area of marketing and distribution. The program of studies...
Show moreThis study is a follow-up survey of graduates of the Distributive Education Middle Management. Programs in nine Florida community /junior colleges for the period 1966 - 1972. The purpose of the study was to evaluate the effectiveness of the program in meeting the career objectives of the graduates. The Distributive Education Middle Management Program is designed to prepare persons for middle management and specialist positions in the area of marketing and distribution. The program of studies integrates classroom instruction with on--the-job training activities and youth club activities to aid the students in achieving their career objectives. The graduates were asked to evaluate the contributions of each of the components of the program in meeting their career goals. Two hundred and seventy- five graduates responded to an extensive questionnaire containing 77 variables concerned with past and present educational and career activities. The graduates recommended the following improvements for the Middle Management Program: offer more marketing and management courses, provide more on- the-job supervision, increase involvement of the business community in the Program, and offer more extensive career guidance and job placement. In conclusion, the graduates found the Distributive Education Middle Management Program effective and efficient in meeting their career objectives.
Show less - Date Issued
- 1975
- PURL
- http://purl.flvc.org/fcla/dt/11655
- Subject Headings
- Distributive education--Florida
- Format
- Document (PDF)
- Title
- Study of high temperature PEM fuel cell (HT-PEMFC) waste heat recovery through ejector based refrigeration.
- Creator
- Fuchs, Michel., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
- Abstract/Description
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The incorporation of an ejector refrigeration cycle with a high temperature PEM fuel cell (HT-PEMFC) presents a novel approach to combined heat and power (CHP) applications. An ejector refrigeration system (ERS) can enhance the flexibility of a CHP system by providing an additional means of utilizing the fuel cell waste heat besides domestic hot water (DHW) heating. This study looks into the performance gains that can be attained by incorporating ejector refrigeration with HT-PEMFC micro-CHP ...
Show moreThe incorporation of an ejector refrigeration cycle with a high temperature PEM fuel cell (HT-PEMFC) presents a novel approach to combined heat and power (CHP) applications. An ejector refrigeration system (ERS) can enhance the flexibility of a CHP system by providing an additional means of utilizing the fuel cell waste heat besides domestic hot water (DHW) heating. This study looks into the performance gains that can be attained by incorporating ejector refrigeration with HT-PEMFC micro-CHP (mCHP) systems (1 to 5kWe). The effectiveness of the ERS in utilizing fuel cell waste heat is studied as is the relulting enhancement to overall system efficiency. A test rig specially constructed to evaluate an ERS under simulated HT-PEMFC conditions is used to test the concept and verify modeling predictions. In addition, two separate analytical models were constructed to simulate the ERS test rig and a HT-PEMFC/ERS mCHP system. The ERS test rig was simulated using a Matlab based model, while two residential sized HT-PEMFC/ERS mCHP systems were simulated using a Simulink model. Using U.S. Energy Information Administration (EIA) air conditioning and DHW load profiles, as well as data collected from a large residential monitoring study in Florida, the Simulink model provides the results in system efficiency gain associated with supporting residential space cooling and water heating loads. It was found that incorporation of an ERS increased the efficiency of a HT-PEMFC mCHP system by 8 t0 10 percentage points over just using the fuel cell waste heat for DHW. In addition, results from the Matlab ERS test rig model were shown to match well with experimental results.
Show less - Date Issued
- 2012
- PURL
- http://purl.flvc.org/FAU/3355557
- Subject Headings
- Proton exchange membrane fuel cells, Fuel cells, Mathematical models, Heat exchangers, Design and construction, Renewable energy sources
- Format
- Document (PDF)
- Title
- A STUDY OF INFLATION IN THE GREEK ECONOMY DURING 1958-1980.
- Creator
- PRINOS, XENOPHON ATHAN., Florida Atlantic University, Manage, Neela D., College of Business, Department of Economics
- Abstract/Description
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This thesis empirically analyzes the problem of inflation in the Greek economy. The study is based upon annual data for the period 1958 to 1980. The econometric analysis is primarily based upon the Scandinavian model of inflation for a small open economy. This model explains inflation by structural differences in productivity between sectors and a transmission mechanism which links world inflation to domestic inflation. This study also examines an extended Phillips curve model which considers...
Show moreThis thesis empirically analyzes the problem of inflation in the Greek economy. The study is based upon annual data for the period 1958 to 1980. The econometric analysis is primarily based upon the Scandinavian model of inflation for a small open economy. This model explains inflation by structural differences in productivity between sectors and a transmission mechanism which links world inflation to domestic inflation. This study also examines an extended Phillips curve model which considers both excess demand variables and structural factors. The results indicate that the above models provide fairly good explanations of the inflationary process in Greece.
Show less - Date Issued
- 1983
- PURL
- http://purl.flvc.org/fcla/dt/14170
- Subject Headings
- Inflation (Finance)--Greece, Greece--Economic conditions--1918-
- Format
- Document (PDF)
- Title
- A study of Internet-based control of processes.
- Creator
- Popescu, Cristian., Florida Atlantic University, Zhuang, Hanqi, Wang, Yuan, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
- Abstract/Description
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In certain applications, one needs to control physical plants that operate in hazardous conditions. In such situations, it is necessary to acquire access to the controller from a different (remote) location through data communication networks, in order to interconnect the remote location and the controller. The use of such network linking between the plant and the controller may introduce network delays, which would affect adversely the performance of the process control. The main theoretical...
Show moreIn certain applications, one needs to control physical plants that operate in hazardous conditions. In such situations, it is necessary to acquire access to the controller from a different (remote) location through data communication networks, in order to interconnect the remote location and the controller. The use of such network linking between the plant and the controller may introduce network delays, which would affect adversely the performance of the process control. The main theoretical contribution of this thesis is to answer the following question: How large can a network delay be tolerated such that the delayed closed-loop system is locally asymptotically stable? An explicit time-independent bound for the delay is derived. In addition, various practical realizations for the remote control tasks are presented, utilizing a set of predefined classes for serial communication, data-acquisition modules and stream-based sockets. Due to the presence of a network, implementing an efficient control scheme is a not trivial problem. Hence, two practical frameworks for Internet-based control are illustrated in this thesis. Related implementation issues are addressed in detail. Examples and case studies are provided to demonstrate the effectiveness of the proposal approach.
Show less - Date Issued
- 2003
- PURL
- http://purl.flvc.org/fcla/dt/13073
- Subject Headings
- Time delay systems, Process control, Computer networks--Remote access, World Wide Web
- Format
- Document (PDF)
- Title
- A STUDY OF ORGANIZATIONAL CLIMATE WITHIN THE TWENTY-FOUR MIDDLE SCHOOLS OF BROWARD COUNTY, FLORIDA.
- Creator
- PRUTSMAN, JACK DAMON, Florida Atlantic University
- Abstract/Description
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The purpose of this study was to ascertain if the existence of climate could be verified within the twenty-four middle schools of Broward County, Florida. As these schools have both the open and traditional types of construction it was proposed that, if climate could be identified, there would be differing parameters of climate between the two school types. A total of 330 teachers at the eighth grade level were administered a thirty-seven item version of the Organizational Climate Description...
Show moreThe purpose of this study was to ascertain if the existence of climate could be verified within the twenty-four middle schools of Broward County, Florida. As these schools have both the open and traditional types of construction it was proposed that, if climate could be identified, there would be differing parameters of climate between the two school types. A total of 330 teachers at the eighth grade level were administered a thirty-seven item version of the Organizational Climate Description Questionnaire. Evaluation of these data was developed in three separate analyses. The analyses were performed on the total group of teachers, the teachers in the traditional schools and those in the open or flexible environment. The analyses were performed by utilizing the method of factor analysis and varimax rotation. The principal factor matrix of each analysis was rotated until eight dimensions were forthcoming. The statistical requirement imposed on each rotation was that dimensions have an eigenvalue of not less than one, and that over fifty percent of the total variance be explained. As a result, eight dimensions were produced for each analysis. The highest factor loadings on each dimension were utilized to interpret the contents of the dimension. As a result of this interpretation it was discovered that the labels developed by Halpin and Croft were appropriate for the emerging dimensions. There were two apparently significant results of this study. The first was that the existence of climate was supported by each analysis of the data and that these climate classifications were similar to those identified by Halpin and Croft. The second result was that there were differences between t he perceptions of climate by the teachers in the traditional school environment and those in the flexible school environment. These differences were primarily evident in the principal thrust, principal consideration, and the esprit dimensions. The statements in the principal thrust dimension for the traditional schools identified a more forma l and work oriented perception of the administrator, The statements in t his dimension for the flexible schools were more oriented to principal consideration. It appeared that teachers perceived a different relationship with the principal in the flexible schools than in the traditional schools. The esprit dimension for the flexible schools emerged as a definite classification of climate, but in the traditional schools this dimension did not appear. There is evidence to support the concept that more than organizational structure c an influence the climate of a school. With the development of the open method of school construction, there is a need to consider the climate implications of this change in the physical environment, and the possibilities posed with regard to effects on teacher behavior.
Show less - Date Issued
- 1974
- PURL
- http://purl.flvc.org/fcla/dt/11643
- Subject Headings
- Middle schools--Florida--Broward County, Education--Florida--Broward County, Educational planning--Florida
- Format
- Document (PDF)
