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Pages
- Title
- Chemical Method and Device to Detect Underwater Trace Explosives via Photo-Luminescence.
- Creator
- Langston, Tye A., Florida Atlantic University, Granata, Richard D., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
- Abstract/Description
-
This research tests the use of sensitized lanthanide ions to determine if they can detect water-borne explosive traces and produces two designs for a field-deployable underwater explosive trace detector. 1,1 0-phenanthroline and thenoyltritluoroacetone are evaluated as sensitizing ligands to absorb energy and initiate the fluorescence process in europium ions. Different compounds obtained via ligand choice and mixing order are evaluated for their ability to produce a large fluorescence...
Show moreThis research tests the use of sensitized lanthanide ions to determine if they can detect water-borne explosive traces and produces two designs for a field-deployable underwater explosive trace detector. 1,1 0-phenanthroline and thenoyltritluoroacetone are evaluated as sensitizing ligands to absorb energy and initiate the fluorescence process in europium ions. Different compounds obtained via ligand choice and mixing order are evaluated for their ability to produce a large fluorescence differential between explosive-laden and explosive-absent solutions. Optimal excitation and emission wavelengths for several different compounds are determined, as well as practical wavelengths to be applied in the field. The effect of methanol as a solvent to deliver the reagents is evaluated and rough solubility limits are determined. The effects of seawater constituents on detection are investigated and explosive detection limits are determined. It was found that this method and device are viable for underwater explosive trace detection. A field-deployable device is designed, characterized, and proven.
Show less - Date Issued
- 2006
- PURL
- http://purl.flvc.org/fau/fd/FA00012600
- Subject Headings
- Silane compounds--Testing, Surface chemistry, Composite materials--Biodegradation, Carbon compounds--Testing
- Format
- Document (PDF)
- Title
- Archaeological Investigations on Cat Island, Bahamas.
- Creator
- MacLaury, James C., Sears, William H., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Anthropology
- Abstract/Description
-
In 1966 and 1967 Cat Island, Bahamas was surveyed by field parties from Florida Atlantic University in an attempt to locate archaeological sites. A total of 19 sites were found, all but one were coastal shell middens near tidal deltas or bays. Most of the sites were on the leeward side of the island where ecological conditions for supporting large quantities of shellfish were best. In March, 1968, five of the sites located in the survey were sampled by means of small test pits. The artifact...
Show moreIn 1966 and 1967 Cat Island, Bahamas was surveyed by field parties from Florida Atlantic University in an attempt to locate archaeological sites. A total of 19 sites were found, all but one were coastal shell middens near tidal deltas or bays. Most of the sites were on the leeward side of the island where ecological conditions for supporting large quantities of shellfish were best. In March, 1968, five of the sites located in the survey were sampled by means of small test pits. The artifact assemblage consisted of over 6000 potsherds and a handful of shell and stone implements. Over 99% of the ceramic assemblage consisted of a thick, red, shell-tempered ware similar to that found in recent excavations on San Salvador by Hoffman (1967). The overwhelming amount of the Cat Island shell-tempered ware is plain with a few decorated variants. A shell-tempered series was set up and called the Palmetto series with one type, Palmetto plain, and several decorated variants. Decorative modes consisted of applique, punctation, incision, and mat and grid impressions. The ceramic assemblage also included several residual categories which contained tempering materials not native to the Bahamas. The most prominent of these was a quartz-tempered ware that showed considerable similarity to the Carrier style of northern Haiti. The decorative modes of the Palmetto series showed affiliations with northern Haiti, Puerto Rico and the Virgin Islands during periods IIIb and IV of Rouse's (1964) time scale for the northern Caribbean. The time of occupation was roughly 1000-1500 A.D. The culture of the island was one of fairly permanent, small villages with subsistence based on the exploitation of the marine shellfish resources and manioc agriculture. Burial and other ceremonial practices are not known.
Show less - Date Issued
- 1968
- PURL
- http://purl.flvc.org/fau/fd/FA00012592
- Subject Headings
- Excavations (Archaeology)--Bahamas--Cat Island, Bahamas--Antiquities, Cat Island (Bahamas)--Antiquities
- Format
- Document (PDF)
- Title
- Squirrel Monkeys, Discrimination Learning and Sequential Testing: The Redundancy, Relative Position and Complexity of Random Shapes.
- Creator
- McNab, Levie J., Michels, Kenneth M., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
This study was a partial replication of one previously reported by Nash and Michels (1966). The purpose was to investigate perceptual form discrimination behavior of young squirrel monkeys as affected by contextual variables of the stimulus. The variables examined were Redundancy, Position and, of the form itself, Complexity. In addition, a sequential method of testing and recording was compared with the conventional 50-trial block procedure. Two 17 month old monkeys were tested on eight...
Show moreThis study was a partial replication of one previously reported by Nash and Michels (1966). The purpose was to investigate perceptual form discrimination behavior of young squirrel monkeys as affected by contextual variables of the stimulus. The variables examined were Redundancy, Position and, of the form itself, Complexity. In addition, a sequential method of testing and recording was compared with the conventional 50-trial block procedure. Two 17 month old monkeys were tested on eight twochoice problems in a Purdue General Test Apparatus. The problems each consisted of two slides on which pairs of random shapes were presented. The shapes within each pair of slides were held constant on the parameters investigated. One slide was designated as the positive stimulus and presented in either the right or left position in random order. The number of correct responses for the 50-trial blocks, as examined by an analysis of variance, failed to reach statistical significance for any of the variables investigated. However, graphic inspection of the data suggests general agreement with the findings of Nash and Michels (1966). In comparing the two methods of testing, the sequential test of performance (STOP) was equally as effective as the conventional method and could have provided a substantial savings in test time. Comparison of scores obtained by the two procedures shows good correlation. Although no strong conclusions can be drawn from the data, they do lead to the speculation that there is a relationship between effect and extent of redundancy, and that failure of S to make a correct response in the test situation may be the result of cue sampling rather than a failure to discriminate.
Show less - Date Issued
- 1968
- PURL
- http://purl.flvc.org/fau/fd/FA00012593
- Subject Headings
- Form perception, Visual discrimination, Monkeys--Behavior
- Format
- Document (PDF)
- Title
- Patterns of Black Leadership in a Southern Community: 1946-1970.
- Creator
- Robinson, Trinette W., DeGrove, John M., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
- Abstract/Description
-
Many approaches to the study of leadership have been limited to trait studies and patterns of race relations, neglecting on the whole the intra-group approach. Leadership may be present in a subcommunity or in an associational group when no political structure or formal decision-making position exists. When the political culture dictates the non-existence of an unassimilated minority group which comprises less than one-third of the voting population, a member of that group has less than a...
Show moreMany approaches to the study of leadership have been limited to trait studies and patterns of race relations, neglecting on the whole the intra-group approach. Leadership may be present in a subcommunity or in an associational group when no political structure or formal decision-making position exists. When the political culture dictates the non-existence of an unassimilated minority group which comprises less than one-third of the voting population, a member of that group has less than a remote chance of achieving electoral status. In that case, sub-community institutional forces (churches, schools, businesses, clubs) may give rise to a form of leadership which responds to the unmet needs and demands of the community. The emergent leadership becomes a function of the group and only after group needs and objectives are defined (articulated) do traits become important as they propel the individual into position. It is, therefore, necessary, if not sufficient, that the group perceive its leaders to be leaders.
Show less - Date Issued
- 1970
- PURL
- http://purl.flvc.org/fau/fd/FA00012594
- Subject Headings
- African American leadership--Florida--West Palm Beach
- Format
- Document (PDF)
- Title
- Micro-evolution in a Prehistoric Alabama Population.
- Creator
- Romfh, John Howard, Sublett, Audrey J., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Anthropology
- Abstract/Description
-
Three skeletal samples from the Lu 25, Perry Site, were selected on the basis of Archaeological evidence. These individuals were observed for the presence or absence of seventy-eight cranial and postcranial discrete traits. The frequency of occurrence for each trait was determined for males, females and combined sexes in each sample. These incidences were used as the basis for statistical comparison to determine biological distance. The teeth of the individuals were also analyzed for caries...
Show moreThree skeletal samples from the Lu 25, Perry Site, were selected on the basis of Archaeological evidence. These individuals were observed for the presence or absence of seventy-eight cranial and postcranial discrete traits. The frequency of occurrence for each trait was determined for males, females and combined sexes in each sample. These incidences were used as the basis for statistical comparison to determine biological distance. The teeth of the individuals were also analyzed for caries and abcesses. All evidence indicates one evolving populati on from a hunting and gathering to an agricultural economy.
Show less - Date Issued
- 1970
- PURL
- http://purl.flvc.org/fau/fd/FA00012595
- Subject Headings
- Ethnology--Alabama, Perry Site (Ala)
- Format
- Document (PDF)
- Title
- Effects of Non-reinforced Test Trials on Transposition.
- Creator
- Royal, Jackson W., Adamson, Robert E., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
Ten male albino rats were trained In a brightness discrimination problem where they were reQuired to choose a sttmulus value of 0.053 ft/cd over one of 0.012 ft/cd. Pairs were matched accordlng to the number of trials requtred to reach a criterion of 18/20 correct responses then randomly assigned to one of two grouos for testing In transposition. Both groups were tested on the orlgtnally positive stimulus and a brighter one: 1.25 ft/cd for Group 8-C and 5.38 ft/cd for Group 8-D. By testing...
Show moreTen male albino rats were trained In a brightness discrimination problem where they were reQuired to choose a sttmulus value of 0.053 ft/cd over one of 0.012 ft/cd. Pairs were matched accordlng to the number of trials requtred to reach a criterion of 18/20 correct responses then randomly assigned to one of two grouos for testing In transposition. Both groups were tested on the orlgtnally positive stimulus and a brighter one: 1.25 ft/cd for Group 8-C and 5.38 ft/cd for Group 8-D. By testing for transposttlon wtth non-reinforced trials, contrary to the usual method, a tendency toward converging measures of transposltton was achteved. Transposition for Group 8-D, In the situation most dissimilar to training, was greater than for 8-C. These results were discussed from relational or Gestalt, Spence model, and Adaptation Level positions and It was shown that the results are contrary to traditional Gestalt predictions. It was oredlcted that, according to underlying assumptions of the Spence model, with continued non-reinforced trials, per cent of transposition for both groups would decrease until a chance level of responding was reached. That this did not occur cannot be explained by the Spence model. Because the variability was too great with such a small N, these results did not reach the .05 level of probability.
Show less - Date Issued
- 1968
- PURL
- http://purl.flvc.org/fau/fd/FA00012596
- Subject Headings
- Transfer of training, Discrimination learning, Extinction (Psychology)
- Format
- Document (PDF)
- Title
- Child Maltreatment and Maladaptive Behavior: An Exploration of the Role of Hostility, Social Influence, and Proximity, Regarding Social Learning in Children.
- Creator
- Samimi, Linda, Tarantino, Santo J., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Sociology
- Abstract/Description
-
A study comparing children identified through the juvenile justice system as maltreated to nonmaltreated children was conducted to assess differences in hostility levels between the two groups. Hostility, conceptualized as resistance to social influence, was hypothesized to originate in early childhood as a psychological distancing mechanism which generalizes to social situations of all types. It was further hypothesized that this distancing would promote resistance to social influence and a...
Show moreA study comparing children identified through the juvenile justice system as maltreated to nonmaltreated children was conducted to assess differences in hostility levels between the two groups. Hostility, conceptualized as resistance to social influence, was hypothesized to originate in early childhood as a psychological distancing mechanism which generalizes to social situations of all types. It was further hypothesized that this distancing would promote resistance to social influence and a preference for increased social diatance, diminishing the impact of social learning modalities and increasing the risk for the development of maladaptive social behaviors. T-tests and analysis of variance indicated no significant differences between the two groups regarding hostility scale scores, although maltreated children evidenced significantly less susceptibility to social influence, and were found to score significantly lower on socialization and social adjustment measures.
Show less - Date Issued
- 1987
- PURL
- http://purl.flvc.org/fau/fd/FA00012597
- Subject Headings
- Child abuse, Hostility (Psychology), Social interaction in children
- Format
- Document (PDF)
- Title
- Escalation - De-escalation: And Balance of Power.
- Creator
- Schwerin, Edward W., Vincent, Jack E., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
- Abstract/Description
-
This experiment was an extension of the SMH, and Vincent-Tindell games. The major purpose was to investigate the effects of two different ratios of shock on escalation-de-escalation ancl other aspects of aggressive-cooperative behavior. In one condition (inequality) one player began game play with 6 shocks, the other player began with 18 shocks. In the other condition (equality) both players began game play with 13 shocks apiece. Players were allowed to purchase additional shocks or surrender...
Show moreThis experiment was an extension of the SMH, and Vincent-Tindell games. The major purpose was to investigate the effects of two different ratios of shock on escalation-de-escalation ancl other aspects of aggressive-cooperative behavior. In one condition (inequality) one player began game play with 6 shocks, the other player began with 18 shocks. In the other condition (equality) both players began game play with 13 shocks apiece. Players were allowed to purchase additional shocks or surrender any number of shocks. Forty-nine game play variables were generated, representing indices of aggressive or cooperative behavior. The relationships of these variables to additional independent variables such as game plan, grade point average, and attitudinal scores were also examined. The findings of this experiment indicate that the balanced (equality) conditions tend to generate more purchasing behavior and a higher overall level of aggression. The unbalanced (inequality) condition however, generated more extreme forms of behavior. Those with 18 shocks were generally more aggressive than all other players, and those with 6 shocks (inequality) were generally more cooperative than all other players. These findings conflicted with the results of the previous Tindell-Vincent game, but it seems that the addition of the purchasing option radically altered the effects of treatment condition. Sex was found to be a good predictor of game behavior. females were generally more cooperative and less active than males. Game plan and, to a lesser extent, attitude scores had predictive value for several responses, but grade point average, as expected, was a poor predictor of game behavior.
Show less - Date Issued
- 1970
- PURL
- http://purl.flvc.org/fau/fd/FA00012598
- Subject Headings
- Political science--Research, Balance of power
- Format
- Document (PDF)
- Title
- Balance of Power and Aggression: An Experiment in Simulation.
- Creator
- Tindell, James O., Vincent, Jack E., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
- Abstract/Description
-
There are many theories in the field of international relations that relate the level of aggression in the international system to the distribution of power among nations. Unfortunately, most such propositions are difficult to validate or refute in the real world for which they were formulated. For this reason an experiment was devised which attempted to east two such conflicting positions, "balance of power", and "preponderance of power", into testable form. The experimental paradigm...
Show moreThere are many theories in the field of international relations that relate the level of aggression in the international system to the distribution of power among nations. Unfortunately, most such propositions are difficult to validate or refute in the real world for which they were formulated. For this reason an experiment was devised which attempted to east two such conflicting positions, "balance of power", and "preponderance of power", into testable form. The experimental paradigm employed was a modified version of the two person mixed-motive game developed at the Systems Analysis Corporation, Santa Monica, California. Fifty-four subjects participa ted in the experiment. Twenty-seven subjects were placed into each of three treatment conditions: "balance of power": "moderate-inequality of power"; and "preponderant-inequality of power". In the "balance of power" condition all subjects were allotted twenty shocks. In the "moderate- inequality of power condition" one subject received twenty- five shocks while his dyadic partner received fifteen shocks. In the "preponderant-inequality of power" one subject received thirty shocks while his dyadic partner received ten shocks. All subjects played a total of fifteen games. A count was made of each subjects responses on eight game-play variables which were viewed as indices of cooperative or aggressive behavior. Additional data were also gathered with respect to each subjects sex, academic aptttude and attitudinal attributes. The purpose of the additional data was to identify variables, other than the treatment condition, affecting game behavior. Thus, facilitating future experimentation. The results of this research indicate that balanced situations tend to produce more cooperative non-aggressive behavior, while imbalances of power tend to generate less cooperative and more aggressive behavi.or. In addition, a balanced situation, when compared to the imbalanced situations, was found to increase the likelihood of participants never employing shock capabilities. Both this experiment and a pilot experiment found de-escalation cycles diffficult to instigate and unlikely to develop from natural causes. Finally, attitudinal, sex, and SCAT data did not appear to be meaningful factors in explaining game play. However, post-experiment sample data indiciated these factors must receive continued attention in future research.
Show less - Date Issued
- 1968
- PURL
- http://purl.flvc.org/fau/fd/FA00012599
- Subject Headings
- Aggressiveness (Psychology), Balance of power, Psychology--Experiments
- Format
- Document (PDF)
- Title
- Predicting Municipal Expenditures.
- Creator
- Bozeman, Barry L., Vincent, Jack E., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
- Abstract/Description
-
The present research examines the proportions of the general expenditures of the nation's largest cities allocated for various functions of government. It is the intent of the research to determine whether the difference in proportions allocated to these functions may be predicted in terms of demographic and socio-economic attributes of the cities. Essentially, the research will be concerned with determining the degree of correlation between the dependent variables (the allocations) and the...
Show moreThe present research examines the proportions of the general expenditures of the nation's largest cities allocated for various functions of government. It is the intent of the research to determine whether the difference in proportions allocated to these functions may be predicted in terms of demographic and socio-economic attributes of the cities. Essentially, the research will be concerned with determining the degree of correlation between the dependent variables (the allocations) and the independent variables (the attributes) and explaining as much of the variance in the subject's spending patterns as is possible.
Show less - Date Issued
- 1970
- PURL
- http://purl.flvc.org/fau/fd/FA00012583
- Subject Headings
- Municipal finance--United States
- Format
- Document (PDF)
- Title
- Intra-legislative Communications in a Newly Emergent Two-party System: The Case of Education and the Florida House of Representatives, 1967.
- Creator
- Callan, Dennis M., Gatlin, Douglas S., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
- Abstract/Description
-
This research attempts to delineate the communications patterns within the Florida House of Representatives of 1967 in its deliberations concerning the issue of education. To accomplish this goal, a questionnaire was personally administered or mailed to all 119 members of the House. A return rate of 51.3% (61) was attained. The bulk of the questionnaire items were of a sociometric nature. To map the communications of the House, ten specific hypotheses were tested. These hypotheses concerned...
Show moreThis research attempts to delineate the communications patterns within the Florida House of Representatives of 1967 in its deliberations concerning the issue of education. To accomplish this goal, a questionnaire was personally administered or mailed to all 119 members of the House. A return rate of 51.3% (61) was attained. The bulk of the questionnaire items were of a sociometric nature. To map the communications of the House, ten specific hypotheses were tested. These hypotheses concerned the relative importance of particular types of legislative actors and groups in the communications patterns of both parties. Administrative officials were also included in the analysis. The rationale for these hypotheses concerned the variables of age and/or size of the respective parties and were based upon the history of Florida politics. All ten hypotheses were based upon the contention that, as in other organizations and decision-making groups, in a legislative body there would exist a "practiced" communications pattern distinctly different from the "formal" organizational pattern. The pattern which emerged from the analysis revealed that members of both parties relied upon a small number of education experts or specialists for information, regardless of the experts' formal positions. The Democrats did not consider their party leadership to be an important information source while the Republican caucus --and through the caucus, the leadership--was a strong source of voting cues. With the exceptions of Dade and Pinellas counties, intra-delegation communications did not appear important in either party. While Democrats did not rely upon any Republicans for information, the Republicans did rely upon some Democrats (the experts}. No geographical splits were apparent in Democratic communications. The Pinellas Republicans were somewhat isolated from east coast Republicans in the information flow. The communications pattern between House members and administrative officials focused upon cabinet members. Republican Governor Kirk was most generally listed as an information source by Republicans while the Democrats relied for information upon Superintendent of Public Instruction Christian. Legislative staffs were identified as information sources by members of both parties.
Show less - Date Issued
- 1969
- PURL
- http://purl.flvc.org/fau/fd/FA00012584
- Subject Headings
- Education--Florida--Politics and government, Florida--Politics and government
- Format
- Document (PDF)
- Title
- Party Competition as a Function of Demographic Variables.
- Creator
- Corbett, A. M., Huckshorn, Robert J., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
- Abstract/Description
-
The general hypothesis is that variation in party competition can be accounted for in terms of socio-economic diversity. Since this general hypothesis is not amenable to direct testing, eleven lowerlevel hypotheses concerning the relationship between party competition and variation in socio-economic structure were used. The county was the unit of analysis. Party competition was measured for two levelsthe presidential and the gubernatorial--for each county. Party competition was defined at...
Show moreThe general hypothesis is that variation in party competition can be accounted for in terms of socio-economic diversity. Since this general hypothesis is not amenable to direct testing, eleven lowerlevel hypotheses concerning the relationship between party competition and variation in socio-economic structure were used. The county was the unit of analysis. Party competition was measured for two levelsthe presidential and the gubernatorial--for each county. Party competition was defined at each level in teras of the percentage of the vote which a county gave to the candidate who failed to carry the county. For the presidential levelf an average was taken for the 1956 and 1960 elections. Por the gubernatorial level, an average was taken for the elections between 1956 and 1960. The higher is the average, the higher is party competition for the county. Measured thusly, party competition was predicted to vary directly with: (1) per cent urban; (2) median income for the county; (3) median number of years of education of those twenty-five years of age or older; (4) the degree of income variation for the county; (5) the degree of variation in number of years of school completed by those twenty-five years of age or older in the county; (6) the degree of dispersion among the major occupational categories within the county; (7) population density per square mile; (8) the per cent of the labor force engaged in white-collar occupations; (9) the per cent Negro of the county population. Party competition was predicted to vary inversely with (l) the extent to which urbanism in a county deviated from fifty per cent ; and , (2) the extent to which the per cent employed in white-collar occupations deviated from fifty per cent. Multiple correlation and regression analysiB was used to teat the hypotheses. A selected sample was used, consisting of the counties of two sets of states. The Homogeneous Set consisted of the counties of Maine, New Hampshire, Wyoming, and North Dakota. The Heterogeneous Set consisted of the counties of New Jersey and Ohio. Also, these two sets were combined to form a Combined Set. The multiple correlation coefficients indicated that party competition could be accounted for in terms of socio-economic diversity to a significant degree at the presidential level but not at the gubernatorial level for each of the sets. However, many of the relationships were not in the predicted direction, indicating that party competition will not necessarily increase with all types of socio-economic diversity. A surprising finding was that the relationships between party competition and the independent variables were often reversed for the two ballot levels . It was suggested that perhaps two party systems are operating in these states at the different ballot levels. The most consistent finding was the negative relationship-contrary to the predicted positive relationship--between party competition and the median educational level of a county. Several others of the independent variables were found to have some tmportance, but there were many inconsistencies in the findings between the ballot levels and, to a lesser extent, between the sets of counties. The results auagest that the simple linear model which vas used might need complicating; the relationships may be more complex than can be accommodated by a linear model.
Show less - Date Issued
- 1968
- PURL
- http://purl.flvc.org/fau/fd/FA00012585
- Subject Headings
- Political parties--United States, Geopolitics, Demography--United States
- Format
- Document (PDF)
- Title
- Party Platforms: The Measurement of a Dualism in a Moving Consensus.
- Creator
- Elliott, Eric E., Huckshorn, Robert J., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
- Abstract/Description
-
The theory of a dualism in a moving consensus, as a covariance in the party's outlook on major governmental issues, is explained in the introduction of the paper. It is illustrated by the most noteworthy example, the convergence in attitudes of both parties on the importance of governmental aid in economic And social areas after the Great Depression. The importance of developing parallel examples of interparty dualism on other issues is presented as the goal of the paper. The utility of the...
Show moreThe theory of a dualism in a moving consensus, as a covariance in the party's outlook on major governmental issues, is explained in the introduction of the paper. It is illustrated by the most noteworthy example, the convergence in attitudes of both parties on the importance of governmental aid in economic And social areas after the Great Depression. The importance of developing parallel examples of interparty dualism on other issues is presented as the goal of the paper. The utility of the party platforms as the most suitable continuous documents available for the measurement of issue covariance is supported by a brief description of their historical background and the political processes involved in their completion . It is proposed that with the party leadership determining the process of their adoption, they are the best indicators of party attitude on major issues. Three platform hypotheses are presented to test the dualism theory. The first hypothesis tests the covariance of subject matter which each party develops in the major issue areas of the platforms, to prove that they are in agreement on the importance of the same problems. The test of the second hypothesis requires the proof of a similar covariance of attitude toward these issues. The third hypothesis is a test to eliminate the factor of being in or out of power as the prime determinant of a party's attitude toward major issues, rather than the dualism in a moving consensus which slowly changes a party's outlook. The background and methodology of content analysis is developed to show its application to the first hypothesis. The coding of the units of content on six major issue areas and their subsequent statistical correlation validated this hypothesis on the covariance of subject matter in the platform8. The technique of the Q-sort is explained as a measurement of party attitudes on the issues of Big Government and Interventionism. Correlation of Q-sort data from both parties on these issues did not support the second hypothesis. The data failed to show a dualism in party attitude similar to that found in subject matter. When the third hypothesis was tested by Q-sorting it was rejected because it indicated that a covariation of attitude toward the two issues is correlated with the parties' change in control of the presidency. It is therefore concluded that the theory of a dualism in a moving consensus does not extend itself to cover the issues tested . Instead it was indicated that the condition of being in or out of power is the main fa ctor in the formation of party attitude on the issues.
Show less - Date Issued
- 1968
- PURL
- http://purl.flvc.org/fau/fd/FA00012586
- Subject Headings
- Political parties--United States, Popular fronts, Political psychology
- Format
- Document (PDF)
- Title
- Contrast Effects: Shifts in Work Load.
- Creator
- Gunn, Diana H., Adamson, Robert E., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
The observation of contrast effects (CE) in response to differential relnforcenent has subsequently elicited a diversity of experimental results and theoretical interpretations. Adaptation Level (AL ) concepts have provided a mechanism for integrating such data within a psychophysical frame-of-reference approach. The application of this approach to the somewhat neglected area of response-produced stimuli associated with effort, suggests that proprioceptive stimuli may be effectively evaluated...
Show moreThe observation of contrast effects (CE) in response to differential relnforcenent has subsequently elicited a diversity of experimental results and theoretical interpretations. Adaptation Level (AL ) concepts have provided a mechanism for integrating such data within a psychophysical frame-of-reference approach. The application of this approach to the somewhat neglected area of response-produced stimuli associated with effort, suggests that proprioceptive stimuli may be effectively evaluated in a simllar manner. Following shifts in the amount of effort required to produce a constant reward magnitude, performance measures demonstrated positive and negative contrast effects (PCE; NCE) in relation to an appropriate control performance. Data analysis suggested that the combined effects of greater effort and shift conditions tended to increase resistance to extinction. The findings are not consistent Kith traditional (e. g., Hull, Spence) concepts with regard to CE and the influence of effort on performance. It is suggested that such effects are more consistent with a contextual, or frame-of- reference, viewpoint.
Show less - Date Issued
- 1967
- PURL
- http://purl.flvc.org/fau/fd/FA00012587
- Subject Headings
- Performance, Reinforcement (Psychology), Reward (Psychology)
- Format
- Document (PDF)
- Title
- Contrast Effects as a Function of Differential Preadaptation.
- Creator
- Henke, Peter G., Adamson, Robert E., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
The purpose of this study was to determine the extent to which preadaptation to differential brightness magnitude affects responses to a constant postadaptation stimulus. Twenty-four male albino rats, one hundred and tweny days old, were divided into four groups and differentially preadapted in Skinner-boxes to 236.90, 77.25, 22.87, and 1.27 apparent foot-candles for 10 minutes, without access to a bar. Immediately following this period the Ss were allowed to respond under continuous...
Show moreThe purpose of this study was to determine the extent to which preadaptation to differential brightness magnitude affects responses to a constant postadaptation stimulus. Twenty-four male albino rats, one hundred and tweny days old, were divided into four groups and differentially preadapted in Skinner-boxes to 236.90, 77.25, 22.87, and 1.27 apparent foot-candles for 10 minutes, without access to a bar. Immediately following this period the Ss were allowed to respond under continuous reinforcement to a postadaptation stimulus of 236.90 apparent foot-candles. Measurement in terms of bar pressing indicated that the four groups extinguished differentially over six days. The control group, for whom the discrepancy bwtween preadaptation magnitude and postadaptation stimulus remained zero, was found most resistant to extiction during this period. Additionally, increases in the discrepancy between the pre- and postadaptation magnitudes led to experimental groups. The implications of these data for the proposition of stimulus definitions in terms of behaviorally effective magnitudes were discussed.
Show less - Date Issued
- 1967
- PURL
- http://purl.flvc.org/fau/fd/FA00012588
- Subject Headings
- Adaptability (Psychology), Extinction (Psychology), Psychophysiology
- Format
- Document (PDF)
- Title
- A Content Analysis of State Political Party Newspapers.
- Creator
- Jednak, Robert Eddy, Huckshorn, Robert J., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
- Abstract/Description
-
The history of the development of the party newspapers is reviewed in the first chapter. The goal of the research was to attempt to discover the uses and goals of state political party newspapers. Five propositions were proposed which would accomplish this aim. The first proposition was to discover the extent to which the state party paper is used to extend the publicity of the state chairman. The second proposition was to discover to what extent the party newspaper is used as a tool in...
Show moreThe history of the development of the party newspapers is reviewed in the first chapter. The goal of the research was to attempt to discover the uses and goals of state political party newspapers. Five propositions were proposed which would accomplish this aim. The first proposition was to discover the extent to which the state party paper is used to extend the publicity of the state chairman. The second proposition was to discover to what extent the party newspaper is used as a tool in finance and fund-raising appeals. The third proposition attempted to reveal to what extent the state paper is used to extend the publicity of the incumbent governor. Proposition IV sought to ascertain whether or not a party not holding the governor's office openly criticized the state opposition party, while the incumbent party merely spoke of its own accomplishments while neglecting the opposition. The fifth, and final, proposition attempted to ascertain whether less populous state Republican party papers were more apt to relate themselves to the national Republican party and administration. The research method of content analysis was discussed and the methodology used in this study was explained. The scores for nine content categories were compiled and the findings from a one-issue analysis of sixty-two papers confirmed Propositions I-IV. The fifth proposition was disproven. A time analysis of six selected papers was performed and these findings confirmed the findings of the one-issue analysis. Furthermore, this analysis proved the existence of patterns of column-inch space allocations in a state party newspaper.
Show less - Date Issued
- 1970
- PURL
- http://purl.flvc.org/fau/fd/FA00012589
- Subject Headings
- Political parties--United States, Newspapers
- Format
- Document (PDF)
- Title
- The Analysis of Variance in Party Loyalty: The Eighty-seventh Congress.
- Creator
- Lane, Cecil C., Huckshorn, Robert J., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
- Abstract/Description
-
This is a study of the impact of constituency pressures on the United States House of Representatives in the Eighty-seventh Congress. It is an attempt to measure by quantitative methods the relative effectiveness of pressures on congress from the various types of constituencies normaily associated with one party or another. Political pressure is defined here as a force which brings about distinctive patterns of voting behavior on the part of the representatives. whether the force is applied...
Show moreThis is a study of the impact of constituency pressures on the United States House of Representatives in the Eighty-seventh Congress. It is an attempt to measure by quantitative methods the relative effectiveness of pressures on congress from the various types of constituencies normaily associated with one party or another. Political pressure is defined here as a force which brings about distinctive patterns of voting behavior on the part of the representatives. whether the force is applied through conventional forms of coercion or through the appeal of loyalties and ideologies. The two sources of pressure which are the major concern of this research are the representative's party affiliation and his constituency. The former is held constant while the latter is permitted to vary in order to observe more closely the differing impact of certain constituency pressures on members of the Democratic and Republican parties. The dependent variable in this study is party loyalty which is the per cent of the times a congressman voted with his party on a set of one hundred and fifteen party unity roll-calls. These roll-calls are those on which a majority of one party opposes a majority of the other party. The independent variables are gross measures of broad demographic, socio-economic, and political characteristics of congressional districts. The theory is that these factors reflect significant differences between the Democrats and Republicans with regard to electoral centers of support. Consequently, it is hypothesized that variations in a congressman's constituency would be related to variations in legislative voting behavior as measured by party unity roll-calls . The step-wise multiple regression technique is the means of testing the major proposal. It indicates that a proportion of the variance in party loyalty can be explained by variation in constituency. But the proportion explained for the Democrats (34.7%) is much greater than that for the Republicans (11. 8%). The threshold concept is proposed as an explanation for this. It is also suggested that new research is needed to clarify the types of constituencies most likely to associate with the two major parties. Thus, the theory that constituency pressures can explain, to some extent, legislative voting behavior has been tentatively validated. However, the findings indicate that a more complex, multi-variate, theory of legislative behavior is needed before accurate predictions can be made. Therefore, the constituency model must be expanded to include other factors such as psychological and institutional ones.
Show less - Date Issued
- 1969
- PURL
- http://purl.flvc.org/fau/fd/FA00012590
- Subject Headings
- Political parties--United States, Party discipline
- Format
- Document (PDF)
- Title
- Population Perspective in Osteology: A Case Study.
- Creator
- Lane, Rebecca A., Sublett, Audrey J., Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Anthropology
- Abstract/Description
-
Samples from two Southeastern populations classified as a "Koger's Island type" are re-examined using non-metrical osteological data. A populationist viewpoint is adopted and the data is analyzed statistically. This paper;diecusses the method and some problems inherent in its utilization. It is concluded that the two samples do not belong to the same breeding population. Anthropological implications of the method are briefly discussed.
- Date Issued
- 1969
- PURL
- http://purl.flvc.org/fau/fd/FA00012591
- Subject Headings
- Anthropometry, Physical anthropology
- Format
- Document (PDF)
- Title
- Modeling and Control of Proton Exchange Membrane (PEM) Fuel Cell System.
- Creator
- Saengrung, Anucha, Zilouchian, Ali, Abtahi, Amir, Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
- Abstract/Description
-
This dissertation presents the design, implementation and application of soft computing methodologies to Proton Exchange Membrane (PEM) Fuel Cell systems. In the first part of the research work, two distinct approaches for the modeling and prediction of a commercial PEM fuel cell system are presented. Several Simulink models are constructed from the electrochemical models of the PEM fuel cells. The models have been simulated in three dimension (3-D) space to provide the visual understanding...
Show moreThis dissertation presents the design, implementation and application of soft computing methodologies to Proton Exchange Membrane (PEM) Fuel Cell systems. In the first part of the research work, two distinct approaches for the modeling and prediction of a commercial PEM fuel cell system are presented. Several Simulink models are constructed from the electrochemical models of the PEM fuel cells. The models have been simulated in three dimension (3-D) space to provide the visual understanding of fuel cell behaviors. In addition, two optimal predictive models, based on back-propagation (BP) and radial basis function (RBF) neural networks are developed. Experimental data as well as pre-processing data are utilized to determine the accuracy and speed of the proposed prediction algorithms. Extensive simulation results are presented to demonstrate the effectiveness of the proposed method on prediction of nonlinear input-output linear input-output mapping. In the second part of the study, the design and implementation of several fuzzy logic controllers (FLCs) as well as classical controllers are carried out. The proposed real-time controller design is based on the integration of sensory information, Labview programming, mathematical calculation, and expert knowledge of the process to yield optimum output power performance under variable load condition. The implementations of the proposed controllers are carried out for a commercial PEM fuel system at FA U Fuel Cell Laboratory. The performance of the proposed controllers pertaining to the oxygen (02) flow rate optimization as well as the actual fuel cell output power under a variable load bank are compared and investigated. It was found the Fuzzy Logic Controller design provide a simple and effective approach for the implementation of the fuel cell systems.
Show less - Date Issued
- 2008
- PURL
- http://purl.flvc.org/fau/fd/FA00012577
- Subject Headings
- Proton exchange membrane fuel cells--Design and construction, Proton exchange membrane fuel cells--Computer simulation, Fuel cells--Design and construction
- Format
- Document (PDF)
- Title
- Effects of High Alkalinity Cements on the Control of Alkali-Silica Reaction for Reinforced Concrete.
- Creator
- Suarez, Jorge Alejandro, Hartt, William H., Florida Atlantic University, College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
- Abstract/Description
-
In previous research, cements with high alkali content (EqA 1.0-1.2 percent) extended the corrosion initiation time of reinforcing steel in concrete. During this study, laboratory tests were performed to determine the suitability of high alkalinity cements to improve concrete durability without modifying physical properties and to control the risk of alkali-aggregate reaction (AAR). A mix design for the FOOT-Class V concrete served as base material for this study. On a cubic meter basis the...
Show moreIn previous research, cements with high alkali content (EqA 1.0-1.2 percent) extended the corrosion initiation time of reinforcing steel in concrete. During this study, laboratory tests were performed to determine the suitability of high alkalinity cements to improve concrete durability without modifying physical properties and to control the risk of alkali-aggregate reaction (AAR). A mix design for the FOOT-Class V concrete served as base material for this study. On a cubic meter basis the cementitious material in this concrete included 363 kg of Type l/ll Portland cement and 83 kg of Class F fly ash. The water-to-cementitious material ratio of the concrete was 0.40. The fine aggregate used in the experimental concretes was quartz sand from a Florida source with no history of alkali-silica reactivity (ASR) susceptibility. A number of cement alkali contents were prepared by different additions of sodium hydroxide to the concrete mix (3.42 - 4.57 kglm\ in some cases, and by using different cements in others. Thus, effects on concrete susceptibility to ASR, electrical resistivity, and strength were studied. Pore water alkalinity was measured by ex-situ leaching and pore water extraction methods. It was concluded that leaching procedures were not appropriate to determine concrete pore water alkalinity in the presence of fly ash. Results suggested that it is feasible to use high alkali cement without the risk of ASR or the loss of strength for two of the seven coarse aggregates studied, given that supplementary cementitious materials and lithium nitrate admixtures are utilized. Criteria for qualification of a concrete as being ASR resistant was based on dimensional stability (less than 0.01% average specimen length change) and the absence of cracking over the one and two year exposure periods according to ASTM Cl293. Based on the fundamentals of the electric double layer theory, the incidence of bivalent cations adjacent to the surface of cement hydrates and reactive silica particles was proposed to provide an explanation for the effects of alkali addition on the electrical resistivity of concrete and the source of the expansive nature of the ASR gel.
Show less - Date Issued
- 2006
- PURL
- http://purl.flvc.org/fau/fd/FA00012578
- Subject Headings
- Reinforced con crete construction, Concrete--Deterioration, Alkali-aggregate reactions, Silica
- Format
- Document (PDF)
