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Pages
- Title
- Spanish St. Augustine: An examination of the impact to a Spanish periphery colony by the British core from, 1702--1763.
- Creator
- Hughes, Daniel Bryant., Florida Atlantic University, Kennedy, William J.
- Abstract/Description
-
This thesis seeks to test the applicability of small-scale archaeological analysis to demonstrating changes in a single entity that moves from a bilateral trade system to a multilateral system within a wider world system, and what if any societal implications this would have. The thesis applies Immanuel Wallerstein's model of colonial exploitation whereby colonies can be subjected to exploitation from any core power. The thesis is divided into two parts. Part I provides the historical...
Show moreThis thesis seeks to test the applicability of small-scale archaeological analysis to demonstrating changes in a single entity that moves from a bilateral trade system to a multilateral system within a wider world system, and what if any societal implications this would have. The thesis applies Immanuel Wallerstein's model of colonial exploitation whereby colonies can be subjected to exploitation from any core power. The thesis is divided into two parts. Part I provides the historical background and context for the second part of the thesis. Part II examines the types of ceramics found in three households in historic St. Augustine, and their points of manufacture. The ceramics under investigation were manufactured between 1600--1763, albeit the main period of focus is 1702--1763. The results of this study demonstrate the utility of using small-scale analysis on archaeological data to gain a better understanding of the complex interplay between historic St. Augustine and England.
Show less - Date Issued
- 2002
- PURL
- http://purl.flvc.org/fcla/dt/12924
- Subject Headings
- Saint Augustine (Fla)--History--18th century, Excavations (Archaeology)--Florida--Saint Augustine, Pottery--Florida--History--18th century, Archaeology and history--Florida
- Format
- Document (PDF)
- Title
- Sparse Coding and Compressed Sensing: Locally Competitive Algorithms and Random Projections.
- Creator
- Hahn, William E., Barenholtz, Elan, Florida Atlantic University, Charles E. Schmidt College of Science, Center for Complex Systems and Brain Sciences
- Abstract/Description
-
For an 8-bit grayscale image patch of size n x n, the number of distinguishable signals is 256(n2). Natural images (e.g.,photographs of a natural scene) comprise a very small subset of these possible signals. Traditional image and video processing relies on band-limited or low-pass signal models. In contrast, we will explore the observation that most signals of interest are sparse, i.e. in a particular basis most of the expansion coefficients will be zero. Recent developments in sparse...
Show moreFor an 8-bit grayscale image patch of size n x n, the number of distinguishable signals is 256(n2). Natural images (e.g.,photographs of a natural scene) comprise a very small subset of these possible signals. Traditional image and video processing relies on band-limited or low-pass signal models. In contrast, we will explore the observation that most signals of interest are sparse, i.e. in a particular basis most of the expansion coefficients will be zero. Recent developments in sparse modeling and L1 optimization have allowed for extraordinary applications such as the single pixel camera, as well as computer vision systems that can exceed human performance. Here we present a novel neural network architecture combining a sparse filter model and locally competitive algorithms (LCAs), and demonstrate the networks ability to classify human actions from video. Sparse filtering is an unsupervised feature learning algorithm designed to optimize the sparsity of the feature distribution directly without having the need to model the data distribution. LCAs are defined by a system of di↵erential equations where the initial conditions define an optimization problem and the dynamics converge to a sparse decomposition of the input vector. We applied this architecture to train a classifier on categories of motion in human action videos. Inputs to the network were small 3D patches taken from frame di↵erences in the videos. Dictionaries were derived for each action class and then activation levels for each dictionary were assessed during reconstruction of a novel test patch. We discuss how this sparse modeling approach provides a natural framework for multi-sensory and multimodal data processing including RGB video, RGBD video, hyper-spectral video, and stereo audio/video streams.
Show less - Date Issued
- 2016
- PURL
- http://purl.flvc.org/fau/fd/FA00004713, http://purl.flvc.org/fau/fd/FA00004713
- Subject Headings
- Artificial intelligence, Expert systems (Computer science), Image processing -- Digital techniques -- Mathematics, Sparse matrices
- Format
- Document (PDF)
- Title
- Sparse Modeling Applied to Patient Identification for Safety in Medical Physics Applications.
- Creator
- Lewkowitz, Stephanie, Kalantzis, Georgios, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Physics
- Abstract/Description
-
Every scheduled treatment at a radiation therapy clinic involves a series of safety protocol to ensure the utmost patient care. Despite safety protocol, on a rare occasion an entirely preventable medical event, an accident, may occur. Delivering a treatment plan to the wrong patient is preventable, yet still is a clinically documented error. This research describes a computational method to identify patients with a novel machine learning technique to combat misadministration.The patient...
Show moreEvery scheduled treatment at a radiation therapy clinic involves a series of safety protocol to ensure the utmost patient care. Despite safety protocol, on a rare occasion an entirely preventable medical event, an accident, may occur. Delivering a treatment plan to the wrong patient is preventable, yet still is a clinically documented error. This research describes a computational method to identify patients with a novel machine learning technique to combat misadministration.The patient identification program stores face and fingerprint data for each patient. New, unlabeled data from those patients are categorized according to the library. The categorization of data by this face-fingerprint detector is accomplished with new machine learning algorithms based on Sparse Modeling that have already begun transforming the foundation of Computer Vision. Previous patient recognition software required special subroutines for faces and di↵erent tailored subroutines for fingerprints. In this research, the same exact model is used for both fingerprints and faces, without any additional subroutines and even without adjusting the two hyperparameters. Sparse modeling is a powerful tool, already shown utility in the areas of super-resolution, denoising, inpainting, demosaicing, and sub-nyquist sampling, i.e. compressed sensing. Sparse Modeling is possible because natural images are inherrently sparse in some bases, due to their inherrant structure. This research chooses datasets of face and fingerprint images to test the patient identification model. The model stores the images of each dataset as a basis (library). One image at a time is removed from the library, and is classified by a sparse code in terms of the remaining library. The Locally Competetive Algorithm, a truly neural inspired Artificial Neural Network, solves the computationally difficult task of finding the sparse code for the test image. The components of the sparse representation vector are summed by `1 pooling, and correct patient identification is consistently achieved 100% over 1000 trials, when either the face data or fingerprint data are implemented as a classification basis. The algorithm gets 100% classification when faces and fingerprints are concatenated into multimodal datasets. This suggests that 100% patient identification will be achievable in the clinal setting.
Show less - Date Issued
- 2016
- PURL
- http://purl.flvc.org/fau/fd/FA00004721, http://purl.flvc.org/fau/fd/FA00004721
- Subject Headings
- Computer vision in medicine, Diagnostic imaging -- Data processing, Mathematical models, Medical errors -- Prevention, Medical physics, Sampling (Statistics)
- Format
- Document (PDF)
- Title
- Sparse Representation Classification of Dolphin Whistles Using Gabor Wavelets.
- Creator
- Esfahanian, Mahdi, Zhuang, Hanqi, Graduate College, Erdol, Nurgun
- Abstract/Description
-
This research presents a novel approach to categorize dolphin whistles into various types. Most accurate methods to identify dolphin whistles are tedious and not robust, especially in the presence of ocean noise. One of the biggest challenges of dolphin whistle extraction is the coexistence of short-time duration wide-band echo clicks with the whistles. In this research, a subspace of select orientation parameters of the 2D Gabor wavelet frames is utilized to enhance or suppress signals by...
Show moreThis research presents a novel approach to categorize dolphin whistles into various types. Most accurate methods to identify dolphin whistles are tedious and not robust, especially in the presence of ocean noise. One of the biggest challenges of dolphin whistle extraction is the coexistence of short-time duration wide-band echo clicks with the whistles. In this research, a subspace of select orientation parameters of the 2D Gabor wavelet frames is utilized to enhance or suppress signals by their orientation. The result is a Gabor image that contains a noise free grayscale representation of the fundamental dolphin whistle which is resampled and fed into the Sparse Representation Classifier. The classifier uses the l1 norm to select a match. Experimental studies conducted demonstrate: a a robust technique based on the Gabor wavelet filters in extracting reliable call patterns, and b the superior performance of Sparse Representation Classifier for identifying dolphin whistles by their call type.
Show less - Date Issued
- 2014
- PURL
- http://purl.flvc.org/fau/fd/FA00005146
- Format
- Document (PDF)
- Title
- Sparse representation classification of dolphin whistles using local binary patterns.
- Creator
- Esfahanian, Mahdi, Zhuang, Hanqi, Erdol, Nurgun, Graduate College
- Date Issued
- 2013-04-12
- PURL
- http://purl.flvc.org/fcla/dt/3361295
- Subject Headings
- Dolphins, Dolphin sounds, Bioacoustics
- Format
- Document (PDF)
- Title
- A sparse volume array for imaging ocean ambient noise in the near-shore region.
- Creator
- Olivieri, Marc P., Florida Atlantic University, Glegg, Stewart A. L., College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
- Abstract/Description
-
Ocean ambient noise has been studied extensively in the past, and several models have been developed to predict its level and to characterize it in different ocean environments. However, most of these studies have been motivated by the need to reduce the negative effect of the ambient noise on measurements. Recently, several studies have used the ambient noise to obtain information about the ocean floor and to achieve passive target detection. This dissertation describes the development of an...
Show moreOcean ambient noise has been studied extensively in the past, and several models have been developed to predict its level and to characterize it in different ocean environments. However, most of these studies have been motivated by the need to reduce the negative effect of the ambient noise on measurements. Recently, several studies have used the ambient noise to obtain information about the ocean floor and to achieve passive target detection. This dissertation describes the development of an Ambient Noise Sonar (ANS) which can be used to measure ambient noise directivity to obtain information about the environment. The system was designed for use on an Autonomous Underwater Vehicle (AUV) and has been used to study the ambient noise in the near shore region by investigating different types of noise in shallow water, such as boat traffic, biological noise and naturally occurring noise up to 20 kHz. There are two advantages to the ANS. First, when mounted on an AUV its mobility will allow the ambient noise to be mapped over an extended area. Second, the very small number of transducers (6 total) used in the array, makes this system suitable for AUV operations because it uses a limited amount of space and power. This dissertation presents the theory of the array processing and preliminary results including examples of boat noise, and biological noise. It was found that the noise from biological sources such as snapping shrimp contributed to the anisotropic component of the acoustic field. These biological sources were found to be concentrated around artificial structures such as piers and groins, and also around natural reefs. Finally noise maps of coastal areas are presented to illustrate the potential of this system to measure the noise field in the coastal region and to evaluate acoustic propagation using passive sources such as the biological noise clusters found along the coast. In the future the ANS will be integrated onto the AUV 'Ocean Explorer II'.
Show less - Date Issued
- 1997
- PURL
- http://purl.flvc.org/fcla/dt/12534
- Subject Headings
- Underwater acoustics, Acoustic imaging
- Format
- Document (PDF)
- Title
- Spatial analysis and functional gene clustering between lens epithelium and fiber cells.
- Creator
- Cowell, Tracy L., Florida Atlantic University, Kantorow, Marc
- Abstract/Description
-
Purpose. To identify genes important for maintaining the specialized functions of lens epithelial and fiber cells. Methods. The expression profiles of 22,215 genes between human lens epithelial and fiber cells were analyzed using oligonucleotide microarray hybridization and RT-PCR. Selected genes were functionally clustered using the EASE bioinformatics software package. Results. Analysis of microarray hybridizations revealed 1430 transcripts that were significantly increased and 901...
Show morePurpose. To identify genes important for maintaining the specialized functions of lens epithelial and fiber cells. Methods. The expression profiles of 22,215 genes between human lens epithelial and fiber cells were analyzed using oligonucleotide microarray hybridization and RT-PCR. Selected genes were functionally clustered using the EASE bioinformatics software package. Results. Analysis of microarray hybridizations revealed 1430 transcripts that were significantly increased and 901 transcripts that were significantly decreased. Microarray data was confirmed using RT-PCR on 11 randomly selected genes. Functional clustering of the identified gene expression patterns revealed altered gene expression in cellular pathways including oxidative stress, cell proliferation, and apoptosis. The methionine sulfoxide reductase class of enzymes were further analyzed and demonstrated to be expressed throughout the human body, indicating a significant protective role. Conclusions. These data reveal novel and previously identified gene expression differences that provide insight into those mechanisms that may be important for lens cell differentiation.
Show less - Date Issued
- 2004
- PURL
- http://purl.flvc.org/fcla/dt/13193
- Subject Headings
- Gene mapping--Statistical methods, Eye--Physiology, Epithelium--Culture and culture media, Cell culture--Analysis
- Format
- Document (PDF)
- Title
- SPATIAL ANALYSIS OF NORTH ATLANTIC STORM TRAJECTORIES.
- Creator
- Lazar, Austin J., Li, Yang, Florida Atlantic University, Department of Mathematical Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
Storms in the North Atlantic Ocean are observed on a continual basis yearly. Storm trajectories exhibit random behavior and are costly to society. Data from the National Oceanic and Atmospheric Administration (NOAA) contains every storm’s track from the year 1851 to 2022. Data of each storm’s track can aid in decision making regarding their behavior. In this article, data analysis is performed on historical storm tracks during the years 1966 to 2022, where access to satellite information is...
Show moreStorms in the North Atlantic Ocean are observed on a continual basis yearly. Storm trajectories exhibit random behavior and are costly to society. Data from the National Oceanic and Atmospheric Administration (NOAA) contains every storm’s track from the year 1851 to 2022. Data of each storm’s track can aid in decision making regarding their behavior. In this article, data analysis is performed on historical storm tracks during the years 1966 to 2022, where access to satellite information is available. Analysis on this data will be used to determine if the storms’ trajectory is statistically dependent on other storm’s trajectories at varying distances in space. The proposed model is a spatial statistical model that is fitted on an in-sample data set to determine the spatial relationship for storm trajectories at all pairwise directions or orientations. Afterwards, the model is assessed on an out-of-sample test data set for performance evaluation.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014227
- Subject Headings
- Spatial analysis (Statistics), Storms, North Atlantic Ocean
- Format
- Document (PDF)
- Title
- Spatial and temporal changes in the partitioning of organic carbon in the plankton community of the Sargasso Sea off Bermuda.
- Creator
- Roman, M. R., Caron, D. A., Kremer, P., Lessard, E. J., Madin, L. P., Malone, Tom C., Napp, J. M., Peele, E. R., Youngbluth, Marsh J.
- Date Issued
- 1995
- PURL
- http://purl.flvc.org/FCLA/DT/3331905
- Subject Headings
- Plankton, Plankton--Vertical distribution, Carbon, Sargasso Sea
- Format
- Document (PDF)
- Title
- Spatial and temporal distributions of sea turtles within the Florida current and surrounding waters.
- Creator
- Bovery, Caitlin M., Wyneken, Jeanette, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
- Abstract/Description
-
Assessing the spatial and temporal distributions of marine turtles in an open system poses both observational and analytical challenges due to their migratory nature and use of large current systems. Concentrations of animals can shift because turtles undergo large-scale migrations and habitat shifts seasonally as well as a function of lifestage. Surface counts of marine turtles in waters off Florida’s east coast were made in and adjacent to the Florida Current using standard aerial surveys....
Show moreAssessing the spatial and temporal distributions of marine turtles in an open system poses both observational and analytical challenges due to their migratory nature and use of large current systems. Concentrations of animals can shift because turtles undergo large-scale migrations and habitat shifts seasonally as well as a function of lifestage. Surface counts of marine turtles in waters off Florida’s east coast were made in and adjacent to the Florida Current using standard aerial surveys. While it is understood that marine turtles use waters off the eastern coast of Florida, here we document the magnitude of the shift in turtle presence each season throughout a two year study and identify habitat characteristics where turtles occur most frequently. Our assessment of marine turtles in the waters off southeast Florida provide valuable metrics describing the in-water biology of sea turtles in this area to inform future management strategies of these endangered species.
Show less - Date Issued
- 2014
- PURL
- http://purl.flvc.org/fau/fd/FA00004083, http://purl.flvc.org/fau/fd/FA00004083
- Subject Headings
- Sea turtles -- Atlantic Coast (U.S.) -- Florida -- Distribution, Sea turtles -- Atlantic Coast (U.S.) -- Florida -- Geographical distribution
- Format
- Document (PDF)
- Title
- Spatial and temporal distributions of sea turtles within the Florida Current and surrounding waters and their implications for oceanic energy development.
- Creator
- Bovery, Caitlin M., Wyneken, Jeanette, Graduate College
- Date Issued
- 2013-04-12
- PURL
- http://purl.flvc.org/fcla/dt/3361275
- Subject Headings
- Sea turtles, Florida Current, Sea turtles--Conservation
- Format
- Document (PDF)
- Title
- Spatial and Temporal Mapping of the Evolution of the Miami-Fort Lauderdale-West Palm Beach Metropolitan Statistical Area (MSA).
- Creator
- Rochelo, Mark, Roberts, Charles, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
- Abstract/Description
-
Urbanization is a fundamental reality in the developed and developing countries around the world creating large concentrations of the population centering on cities and urban centers. Cities can offer many opportunities for those residing there, including infrastructure, health services, rescue services and more. The living space density of cities allows for the opportunity of more effective and environmentally friendly housing, transportation and resources. Cities play a vital role in...
Show moreUrbanization is a fundamental reality in the developed and developing countries around the world creating large concentrations of the population centering on cities and urban centers. Cities can offer many opportunities for those residing there, including infrastructure, health services, rescue services and more. The living space density of cities allows for the opportunity of more effective and environmentally friendly housing, transportation and resources. Cities play a vital role in generating economic production as entities by themselves and as a part of larger urban complex. The benefits can provide for extraordinary amount of people, but only if proper planning and consideration is undertaken. Global urbanization is a progressive evolution, unique in spatial location while consistent to an overall growth pattern and trend. Remotely sensing these patterns from the last forty years of space borne satellites to understand how urbanization has developed is important to understanding past growth as well as planning for the future. Imagery from the Landsat sensor program provides the temporal component, it was the first satellite launched in 1972, providing appropriate spatial resolution needed to cover a large metropolitan statistical area to monitor urban growth and change on a large scale. This research maps the urban spatial and population growth over the Miami – Fort Lauderdale – West Palm Beach Metropolitan Statistical Area (MSA) covering Miami- Dade, Broward, and Palm Beach counties in Southeast Florida from 1974 to 2010 using Landsat imagery. Supervised Maximum Likelihood classification was performed with a combination of spectral and textural training fields employed in ERDAS Image 2014 to classify the images into urban and non-urban areas. Dasymetric mapping of the classification results were combined with census tract data then created a coherent depiction of the Miami – Fort Lauderdale – West Palm Beach MSA. Static maps and animated files were created from the final datasets for enhanced visualizations and understanding of the MSA evolution from 60-meter resolution remotely sensed Landsat images. The simplified methodology will create a database for urban planning and population growth as well as future work in this area.
Show less - Date Issued
- 2017
- PURL
- http://purl.flvc.org/fau/fd/FA00004904, http://purl.flvc.org/fau/fd/FA00004904
- Subject Headings
- Geographic information systems., Sustainable urban development--Florida--Miami--Planning., Sustainable urban development--Florida--Fort Lauderdale--Planning., Sustainable urban development--Florida--West Palm Beach--Planning., Urbanization--Florida--Miami-Dade County., Urbanization--Florida--Broward County., Urbanization--Florida--Palm Beach County., Remote sensing., Spatial analysis (Statistics)
- Format
- Document (PDF)
- Title
- Spatial and trophic ecology of the sawtooth eel, Serrivomer beanii, a biomass-dominant bathypelagic fish over the northern Mid-Atlantic ridge.
- Creator
- Geidner, Megan E., Charles E. Schmidt College of Science, Department of Biological Sciences
- Abstract/Description
-
The role of Serrivomer beanii in bathypelagic food webs is poorly known, but abundance and biomass estimates from the 2004 G.O. Sars MAR-ECO Expedition suggest it to have a high level of importance. MAR-ECO, a Census of Marine Life field project, has allowed us to increase our knowledge of S. beanii through spatial analysis, including the congeneric species Serrivomer lanceolatoides, and trophic analysis. Serrivomer beanii abundance and biomass exhibited a decreasing trend along the northern...
Show moreThe role of Serrivomer beanii in bathypelagic food webs is poorly known, but abundance and biomass estimates from the 2004 G.O. Sars MAR-ECO Expedition suggest it to have a high level of importance. MAR-ECO, a Census of Marine Life field project, has allowed us to increase our knowledge of S. beanii through spatial analysis, including the congeneric species Serrivomer lanceolatoides, and trophic analysis. Serrivomer beanii abundance and biomass exhibited a decreasing trend along the northern Mid-Atlantic Ridge from north to south. In terms of size, S. beanii was found to increase as distance from the ridge decreased, suggesting a topographic aggregation strategy. The diet of S. beanii consisted of crustaceans, cephalopods, and teleosts. The trophic results of this study reveal a likely "alternative" trophic pathway in the deep mid-North Atlantic, and perhaps other, bathypelagic ecosystems: higher trophic-level predators are supported by micronektonic invertebrates as primary prey.
Show less - Date Issued
- 2008
- PURL
- http://purl.flvc.org/FAU/165941
- Subject Headings
- Plankton, Ecology, Coral reef animals, Ecology, Deep sea biology
- Format
- Document (PDF)
- Title
- Spatial coherence methods in undersea image formation and detection.
- Creator
- Caimi, F. M., Bailey, B. C., Blatt, J. H., Harbor Branch Oceanographic Institute
- Date Issued
- 1996
- PURL
- http://purl.flvc.org/FCLA/DT/3183697
- Subject Headings
- Underwater imaging systems, Image Quality
- Format
- Document (PDF)
- Title
- SPATIAL ECOLOGY OF BOBCATS (LYNX RUFUS) ON EVERGLADES TREE ISLANDS.
- Creator
- Buckman, Katherine, Dom, Nathan, Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
Bobcats (Lynx rufos) that inhabit tree islands of the Everglades, an expansive wetland in southern Florida. Bobcats are understudied in Florida and wetland ecosystems, and my objective was to identify factors driving their use of tree islands. I hypothesized that tree island size, distance between islands, and clusters of islands might influence occupancy. Additionally, I tested for effects of water levels and the Burmese Python invasion on bobcat occupancy. I built detection histories using...
Show moreBobcats (Lynx rufos) that inhabit tree islands of the Everglades, an expansive wetland in southern Florida. Bobcats are understudied in Florida and wetland ecosystems, and my objective was to identify factors driving their use of tree islands. I hypothesized that tree island size, distance between islands, and clusters of islands might influence occupancy. Additionally, I tested for effects of water levels and the Burmese Python invasion on bobcat occupancy. I built detection histories using 1,855 bobcat images from camera traps set on 87 tree islands in a -2,350 km2 managed conservation area from 2005-2019 and tested hypotheses about bobcat use relative to habitat and hydrologic covariates. Bobcat occupancy was significantly diminished when Burmese python densities exceeded 2.5 pythons/km2• Occupancy probability also increased with increasing densities of tree islands around the focal island. Effects of high water levels were less clear, but suggested a slight reduction in island occupancy with deeper water in the surrounding wetlands. My results suggest that managing for high tree island density and low densities of Burmese pythons will have stronger effects on bobcat habitat use than specific water levels.
Show less - Date Issued
- 2021
- PURL
- http://purl.flvc.org/fau/fd/FA00013846
- Subject Headings
- Lynx rufus, Bobcat, Spatial ecology, Everglades (Fla.)
- Format
- Document (PDF)
- Title
- THE SPATIAL FRAMEWORK OF FORM PERCEPTION: INDIVIDUAL DIFFERENCES WITH RESPECT TO PHENOMENAL AND RETINAL DETERMINATION OF SPATIAL REFERENCE.
- Creator
- GOLD, LEON SAMUEL, Florida Atlantic University
- Abstract/Description
-
Rock's procedure for separating the effect of objective and retinal spatial reference by varying stimulus orientation and body posture was used in conjunction with the "same-different" reaction time paradigm. It was predicted that the individual differences in perceptual processing (analytic and structural) obtained by Hock (1973) would involve different determinants of spatial reference, these being retinal reference for analytic processing and objective reference for structural processing....
Show moreRock's procedure for separating the effect of objective and retinal spatial reference by varying stimulus orientation and body posture was used in conjunction with the "same-different" reaction time paradigm. It was predicted that the individual differences in perceptual processing (analytic and structural) obtained by Hock (1973) would involve different determinants of spatial reference, these being retinal reference for analytic processing and objective reference for structural processing. The results show that analytic subjects as hypothesized, referenced perceptual information to a retinal coordinate system. Structural subjects however, seemed to reference perceptual information to both objective and retinal coordinates. The results for structural subjects were attributed to the unexpected finding that subjects who were structural while upright, became analytic when in a reclining position. The latter finding suggested that Rock's methodology for separating the effects of retinal and objective orientation relies on the subjects employing the same mode of processing in all bodily postures.
Show less - Date Issued
- 1974
- PURL
- http://purl.flvc.org/fcla/dt/13649
- Subject Headings
- Form perception, Orientation (Psychology), Recognition (Psychology), Visual perception
- Format
- Document (PDF)
- Title
- Spatial patterns of interracial marriage in the South Atlantic United States.
- Creator
- Kokoros, Sophia., Florida Atlantic University, Lee, David R.
- Abstract/Description
-
Using Census data, regression analyses were performed at the state level for the South Atlantic region of the U.S. and at the Public Use Microdata Area (PUMA) level for the state of Florida to evaluate possible relationships between the dependent variable, the percentage married households interracial, and several independent variables. Only two of the independent variables examined at the state level were statistically significant: the percent black and the percentage of the population that...
Show moreUsing Census data, regression analyses were performed at the state level for the South Atlantic region of the U.S. and at the Public Use Microdata Area (PUMA) level for the state of Florida to evaluate possible relationships between the dependent variable, the percentage married households interracial, and several independent variables. Only two of the independent variables examined at the state level were statistically significant: the percent black and the percentage of the population that reside in metropolitan areas. No significant relationships could be found at the PUMA level of analysis. Spatial patterns of interracial marriage were evaluated as well. The northernmost states and Florida had the highest percentage of married households interracial. West Virginia and the Carolinas had the lowest rate of intermarriage. PUMAs containing military bases, major universities or those to the South, influenced by migrations from Latin America and the Caribbean, had the greatest percentage of married households interracial.
Show less - Date Issued
- 1999
- PURL
- http://purl.flvc.org/fcla/dt/15694
- Subject Headings
- Interracial marriages--United States.
- Format
- Document (PDF)
- Title
- SPATIAL PROXIMITY, OBJECT FORMATION, AND SELECTIVE ATTENTION.
- Creator
- LALOMIA, MARY JEAN, Florida Atlantic University
- Abstract/Description
-
In these studies subjects judged the curvature direction of one of a pair of parentheses. In one condition the pair of parentheses formed a single object and in a second condition the parentheses formed two objects. The one- and two-object conditions were used to examine the contrasting positions of mental spotlight and object-based theories of attention. Mental spotlight theory holds that attention is allocated to regions in visual space, whereas object-based theory states that attention is...
Show moreIn these studies subjects judged the curvature direction of one of a pair of parentheses. In one condition the pair of parentheses formed a single object and in a second condition the parentheses formed two objects. The one- and two-object conditions were used to examine the contrasting positions of mental spotlight and object-based theories of attention. Mental spotlight theory holds that attention is allocated to regions in visual space, whereas object-based theory states that attention is allocated to objects in visual space. To evaluate the positions of these theories, the retinal proximity between the parentheses was varied. Mental spotlight theory predicts that performance differences, due to the changes of retinal proximity, should be the same regardless of whether the stimuli form one or two objects. Object-based theory predicts that retinal proximity facilitates performance for the one-object condition and retards performance for the two-object condition. The results indicated that retinal proximity facilitated performance for the one-object parentheses but retarded performance for the two-object parentheses. These results support the view that attention is allocated to objects rather than regions in visual space.
Show less - Date Issued
- 1985
- PURL
- http://purl.flvc.org/fcla/dt/14249
- Subject Headings
- Attention--Testing, Attention--Experiments
- Format
- Document (PDF)
- Title
- SPATIAL TRANSFORMATIONS AND SELF-INITIATED ACTIVE MOVEMENT: A DEVELOPMENTAL STUDY.
- Creator
- SULLIVAN, MARJORIE ANN., Florida Atlantic University
- Abstract/Description
-
A spatial transformation task was administered to two groups of children under one of three conditions: active subject-movement, passive subject-movement and stimulus array-rotation. In the younger group (5-7 years) subjects did significantly better in the active subject-movement than in the array-rotation condition. The active-passive distinction was not significant. Performance improved significantly with age. While there were no statistically significant differences between conditions in...
Show moreA spatial transformation task was administered to two groups of children under one of three conditions: active subject-movement, passive subject-movement and stimulus array-rotation. In the younger group (5-7 years) subjects did significantly better in the active subject-movement than in the array-rotation condition. The active-passive distinction was not significant. Performance improved significantly with age. While there were no statistically significant differences between conditions in the older group (8-9 years), a trend toward reversal in level of difficulty between the array-rotation and subject-move conditions was noted. These findings were related to possible differences between young, pre-operational children who depend on topological cues and a stable relationship between the stimulus and the external background context and older, concrete operational children for whom spatial concepts are internalized such that actual movement might compete with imagined movement. Significant sex differences, favoring boys, emerged in the older group.
Show less - Date Issued
- 1977
- PURL
- http://purl.flvc.org/fcla/dt/13897
- Subject Headings
- Space perception in children
- Format
- Document (PDF)
- Title
- SPATIAL VARIATIONS IN MORTGAGE LENDING IN BROWARD COUNTY, FLORIDA.
- Creator
- PHILLIPS, JULIE A., Florida Atlantic University, Schultz, Ronald R., Charles E. Schmidt College of Science, Department of Geosciences
- Abstract/Description
-
An analysis of five loan types from twenty-six lending institutions in 125 census tracts of Broward County revealed that lending was concentrated in coastal and western tracts, less in central tracts. Western tract loan activity was greater than average because this area is undergoing conversion from agricultural to urban land uses. Coastal tracts had greater than average rates because of continued expansion of condominium development. Central tracts are mainly commercial, industrial or lower...
Show moreAn analysis of five loan types from twenty-six lending institutions in 125 census tracts of Broward County revealed that lending was concentrated in coastal and western tracts, less in central tracts. Western tract loan activity was greater than average because this area is undergoing conversion from agricultural to urban land uses. Coastal tracts had greater than average rates because of continued expansion of condominium development. Central tracts are mainly commercial, industrial or lower value single-family dwellings and have large black populations. High positive correlations were found among lending rates and income; moderate positive correlations with age and household size; moderate negative with percent black. Geographic discrimination in lending ("redlining") may be suspected, but insufficient quality and quantity of data render such conclusions tentative.
Show less - Date Issued
- 1983
- PURL
- http://purl.flvc.org/fcla/dt/14156
- Subject Headings
- Mortgage loans--Florida--Broward County
- Format
- Document (PDF)
