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Title: An address delivered before the Maine Historical Society, at Bowdoin College, on the afternoon of the annual commencement, September 5, 1849.
Creator: Winthrop, Robert C. (Robert Charles) 1809-1894, Ticknor, Reed, and Fields
Abstract/Description: Cover title: Mr. Winthrop's address before the Maine Historical Society, at Bowdoin College. Printer’s name appears on the title page verso. Appendix: pages [65]-68. FAU copy imperfect: cover missing, edges trimmed to 22 cm.
PURL: http://purl.flvc.org/fau/fd/fauwsb14f22
Subject Headings: Baccalaureate addresses -- 1849, Bowdoin, James -- 1726-1790, Governors -- Massachusetts -- Biography, Massachusetts -- Intellectual life -- 18th century, Massachusetts -- Politics and government -- 1775-1865, Massachusetts -- Politics and government -- To 1775, Political culture -- Massachusetts -- History -- 18th century, Revolutionaries -- Massachusetts -- Biography, Speeches, addresses, etc., American -- 19th century
Format: E-book

Title: An evaluation of post-classification comparison for historical land information systems.
Creator: Roberts, Richard Scott., Florida Atlantic University, Roberts, Charles
Abstract/Description: The population of southeast Florida has grown considerably since the 1940's. Managing this population growth has challenged urban planners and growth managers. Prior to 1970, geographers and cartographers struggled with mapping this area as the landscape underwent rapid transformation to accommodate millions of new residents. With the launch of the Landsat satellite series in 1972, digital satellite images of southeast Florida have been acquired every 18 days to provide geographers and...
Show moreThe population of southeast Florida has grown considerably since the 1940's. Managing this population growth has challenged urban planners and growth managers. Prior to 1970, geographers and cartographers struggled with mapping this area as the landscape underwent rapid transformation to accommodate millions of new residents. With the launch of the Landsat satellite series in 1972, digital satellite images of southeast Florida have been acquired every 18 days to provide geographers and cartographers with a new tool for monitoring land use change. This thesis examines the utility of using this new tool combined with historical aerial photographs to document land use change through time.
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Date Issued: 1997
PURL: http://purl.flvc.org/fcla/dt/15418
Subject Headings: Landscape assessment--Florida, Landscape changes--Florida, Land use--Florida
Format: Document (PDF)

Title: Iterative remote sensing as an alternative for complex vegetation mapping.
Creator: Boutiette, Robert L., Florida Atlantic University, Roberts, Charles
Abstract/Description: The South Florida Water Management District in conjunction with Florida Atlantic University began an effort to record vegetation invading Lake Okeechobee in 1994. This effort included a mapping project that would include all detectable vegetation within the expanding littoral zone. There were several problems associated with remote sensing aspects of this project. These problems resulted in inaccurate classification of species and a redundancy of mapping for large areas. This thesis will...
Show moreThe South Florida Water Management District in conjunction with Florida Atlantic University began an effort to record vegetation invading Lake Okeechobee in 1994. This effort included a mapping project that would include all detectable vegetation within the expanding littoral zone. There were several problems associated with remote sensing aspects of this project. These problems resulted in inaccurate classification of species and a redundancy of mapping for large areas. This thesis will review the remote sensing methods used for the mapping project, analyze the associated errors within the map product, and lastly offer an alternative approach, incorporating the use of iterative remote sensing, for mapping the vegetation of Lake Okeechobee and other areas of complex vegetation.
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Date Issued: 1997
PURL: http://purl.flvc.org/fcla/dt/15491
Subject Headings: Vegetation mapping--Remote sensing, Phytogeography, Geographic information systems
Format: Document (PDF)

Title: Statistical Correlation between DMSP-OLS Night Light Images and Economic Activity at the MSA Level in Florida.
Creator: Forbes, Dolores J., Roberts, Charles, Graduate College
Date Issued: 2011-04-08
PURL: http://purl.flvc.org/fcla/dt/3172435
Subject Headings: Pyrometers--Calibration, National Geophysical Data Center, Gross domestic product
Format: Document (PDF)

Title: Ecological correlates of the abundance of juvenile green sea turtles (Chelonia mydas) on nearshore reefs in southeast Florida.
Creator: Stadler, Melanie, Salmon, Michael, Roberts, Charles, Graduate College
Date Issued: 2013-04-12
PURL: http://purl.flvc.org/fcla/dt/3361359
Subject Headings: Green turtle, Chelonia mydas, Reefs--Florida
Format: Document (PDF)

Title: Speech of Hon. Robert C. Winthrop, at the great ratification meeting in Union Square, New York, September 17, 1864.
Creator: Winthrop, Robert C. (Robert Charles) 1809-1894, Democratic Party (U.S.) Central Executive Campaign Committee
Abstract/Description: Series: Campaign document (Democratic Party (U.S.)) ; no. 9. Alternate title: Speech of Honorable Robert C. Winthrop, at the great ratification meeting in Union Square. Notes: Caption title. "Extract from a speech by the Hon. Henry Clay in the Senate of the United States on the subject of abolition petitions, February 7, 1839"--Pages 7-8. "Watchwords for patriots. Mottoes for the campaign, selected from General McClellan's writings"--Page 8. "Sold at 13 Park Row, New York, and at all...
Show moreSeries: Campaign document (Democratic Party (U.S.)) ; no. 9. Alternate title: Speech of Honorable Robert C. Winthrop, at the great ratification meeting in Union Square. Notes: Caption title. "Extract from a speech by the Hon. Henry Clay in the Senate of the United States on the subject of abolition petitions, February 7, 1839"--Pages 7-8. "Watchwords for patriots. Mottoes for the campaign, selected from General McClellan's writings"--Page 8. "Sold at 13 Park Row, New York, and at all Democratic newspaper offices, at $1 per 1,000 pages"--Top of page [1].Text in two columns.
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PURL: http://purl.flvc.org/fau/fd/fauwsb21f30
Subject Headings: Abolitionists -- United States -- Attitudes, Campaign literature -- United States -- 19th century, Campaign literature, 1864 -- Democratic, Democratic Party (U.S.), Presidents -- United States -- Election -- 1864, Slavery -- Justification, Slavery -- United States -- Speeches in Congress, Speeches, addresses, etc., American -- 19th century, States' rights (American politics), United States -- History -- Civil War, 1861-1865
Format: E-book

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.
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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: Population distribution analysis for water supply planning, using textural image classification of SPOT data in an integrated Geographical Information Systems (GIS).
Creator: Poudratchi, Ahmad., Florida Atlantic University, Roberts, Charles, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Protecting Natural Resources, such as drinking water in terms of quality and quantity, is one of the missions of South Florida Water Management District (SFWMD). Water Supply Planning is one of the many projects at the Planning Department of the SFWMD, in which sixteen counties are analyzed to determine the most accurate population distribution for water supply distribution among the water utility companies. This thesis examines the current methodology which is used at the SFWMD, and...
Show moreProtecting Natural Resources, such as drinking water in terms of quality and quantity, is one of the missions of South Florida Water Management District (SFWMD). Water Supply Planning is one of the many projects at the Planning Department of the SFWMD, in which sixteen counties are analyzed to determine the most accurate population distribution for water supply distribution among the water utility companies. This thesis examines the current methodology which is used at the SFWMD, and addresses its shortcomings. It then introduces a proposed methodology, to improve population distribution analysis, by incorporating satellite imagery. Textural classification of satellite imagery will be used to extract residential neighborhoods from non-residential areas. The resultant residential areas, which is in the form of raster data, then will be converted to a vector coverage to be utilized as an additional source of data. Incorporating satellite imagery eliminates the assumption of homogenous population distribution, which the current methodology is based on and consequently, leads to a more accurate population distribution methodology.
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Date Issued: 1996
PURL: http://purl.flvc.org/fcla/dt/15254
Subject Headings: Water-supply--Florida--Statistics, Florida--Population--Statistics, Geographic information systems, South Florida Water Management District
Format: Document (PDF)

Title: Vegetation time series analysis of the Loxahatchee Slough, Palm Beach County, Florida: A GIS incorporating satellite imagery with black and white aerial photography.
Creator: Hohner, Susan Marie., Florida Atlantic University, Roberts, Charles, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: The Loxahatchee Slough is the largest wilderness island refuge existing in Palm Beach County, Florida. Cultural impacts have altered the hydrology of the area. This study provides a database of historical and geographical information regarding the Slough. Aerial photography and satellite imagery from pre- and post-channelization dates are classified according to vegetation ecosystems. GIS analysis is used to compare these diverse data sets. Changes in hydroperiod are examined, using...
Show moreThe Loxahatchee Slough is the largest wilderness island refuge existing in Palm Beach County, Florida. Cultural impacts have altered the hydrology of the area. This study provides a database of historical and geographical information regarding the Slough. Aerial photography and satellite imagery from pre- and post-channelization dates are classified according to vegetation ecosystems. GIS analysis is used to compare these diverse data sets. Changes in hydroperiod are examined, using vegetation as an indicator. Results show a general trend toward dryer hydroperiod vegetation land cover. Since 1979, the Army Corps of Engineers has raised water levels back toward pre-channelization levels, in a portion of the study area known as the Historic Region. Results indicate a positive response, with a net increase of longer hydroperiod vegetation in this region since 1979.
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Date Issued: 1994
PURL: http://purl.flvc.org/fcla/dt/15079
Subject Headings: Vegetation mapping--Florida--Palm Beach County, Plant communities--Remote sensing, Geographic information systems--Remote sensing, Aerial photography in geography--Florida--Palm Beach County, Swamp ecology--Florida--Palm Beach County
Format: Document (PDF)

Title: Culturally derived watersheds and their effect on the spectral signatures of vegetation in the Dupuis Reserve.
Creator: Householder, Eric James, Florida Atlantic University, Roberts, Charles, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Like so many natural areas in south Florida, the Dupuis Reserves' landscape has gone through extreme alteration due to numerous cultural activities. Activities including drainage, cattle ranching, and citrus farming have altered the reserves natural hydrology causing the formation of several watersheds. This hydrologic alteration has caused the once homogenous ecosystem to fragment into two separate landscapes: one dominated by drainage and human impact while the other remains in a relatively...
Show moreLike so many natural areas in south Florida, the Dupuis Reserves' landscape has gone through extreme alteration due to numerous cultural activities. Activities including drainage, cattle ranching, and citrus farming have altered the reserves natural hydrology causing the formation of several watersheds. This hydrologic alteration has caused the once homogenous ecosystem to fragment into two separate landscapes: one dominated by drainage and human impact while the other remains in a relatively natural state. This study will attempt to determine, with the use of remote sensing, geographic information systems and digital image classifications if culturally derived watersheds cause significant change in the spectral signatures of vegetation. Results indicate that when the study site is sectioned along culturally derived watersheds, classification accuracy is significantly improved.
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Date Issued: 1997
PURL: http://purl.flvc.org/fcla/dt/15499
Subject Headings: Watersheds--Florida, Vegetation classification--Florida, Hydrology--Florida, Dupuis Reserve (Fla )
Format: Document (PDF)

Title: A simple model for estimating insolation from GOES satellite data.
Creator: Hopkins, Emily Elaine, Florida Atlantic University, Roberts, Charles, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: South Florida summers are characterized by small intense convective storms which lead to extreme variations in local cloud cover. Estimating insolation from high-resolution satellite data accounts for these variations. A statistical model is presented for estimating incident solar radiation (insolation) using 1km x 1km resolution visible images from the GOES8 satellite. The model relates insolation to top-of-the-atmosphere radiation, readily available climate data, and cloud cover (from the...
Show moreSouth Florida summers are characterized by small intense convective storms which lead to extreme variations in local cloud cover. Estimating insolation from high-resolution satellite data accounts for these variations. A statistical model is presented for estimating incident solar radiation (insolation) using 1km x 1km resolution visible images from the GOES8 satellite. The model relates insolation to top-of-the-atmosphere radiation, readily available climate data, and cloud cover (from the satellite). Regression coefficients were developed and verified based on one month of insolation measurements from eight ground-based measurement stations operated by the South Florida Water Management District. The model allows almost continuous areal estimation of daily or hourly insolation at resolutions suitable for small-scale hydrologic modeling. Model estimates are comparable to measured values at ground stations and superior to estimates derived from interpolating between ground stations.
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Date Issued: 1999
PURL: http://purl.flvc.org/fcla/dt/15652
Subject Headings: Geostationary satellites, Solar radiation
Format: Document (PDF)

Title: ELECTROCHEMICAL AND CHEMICAL REDUCTION OF A DIMERIC MOLYBDENUM(V)- CYSTEINE COMPLEX.
Creator: STEPHENSON, ROBERT FRANK., Florida Atlantic University
Abstract/Description: The reduction of Mo2O4 (cysteine)2^2-, a model complex for molybdenum redox enzymes, was studied using pr e parative and electrochemical techniques. Molybdenum(IV) complexes prepared were Mo2O3(cysteine)^4- and Mo2O3 (cysteine)2^2-. Electrochemical reduction of Mo2O4 (cysteine)2^2- produced the monomeric molybdenum(IV)-cysteine complex. The electrode reaction mechanism was found to be an ECE process and involved two one-electron reduction steps. The intermediate in this process was a Mo(V)/Mo...
Show moreThe reduction of Mo2O4 (cysteine)2^2-, a model complex for molybdenum redox enzymes, was studied using pr e parative and electrochemical techniques. Molybdenum(IV) complexes prepared were Mo2O3(cysteine)^4- and Mo2O3 (cysteine)2^2-. Electrochemical reduction of Mo2O4 (cysteine)2^2- produced the monomeric molybdenum(IV)-cysteine complex. The electrode reaction mechanism was found to be an ECE process and involved two one-electron reduction steps. The intermediate in this process was a Mo(V)/Mo(IV) mixed valence dimer, and its rate of dissociation into Mo(V) and Mo(IV) monomers was 50 sec^-1 at pH 9.2 and 22°C. Mo2O4 (cysteine)2^2- was observed to react with free cysteine at pH 8-10. This reaction was first order in Mo2O4 (cysteine)2^2- and first order in cysteine; the rate constant in pH 9.2 borate buffer was 10.9 ± 1.8 x 10^-3 M^-1 sec^-1 at 22°C. Cysteine was catalytically regenerated in this reaction. The reaction was formulated as a cysteine-catalyzed autooxidation-reduction of Mo2O4 (cysteine)2^2- yielding a molybdenum(IV)-cystine dimer as the product.
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Date Issued: 1971
PURL: http://purl.flvc.org/fcla/dt/13459
Subject Headings: Molybdenum compounds, Tumors--Immunological aspects
Format: Document (PDF)

Title: THE CONSTRUCTION AND IMPLEMENTATION OF A VISIBLE RANGE SPECTROPHOTOMETER FOR HIGH SCHOOL CHEMISTRY.
Creator: Helmick, Robert William, Florida Atlantic University
Abstract/Description: An inexpensive visible range spectrophotometer of good instructional value is prepared as a means of introducing instrumental analysis to the high school chemistry curriculum. Design and details of construction of the spectrophotometer are presented and five standard spectrophotometric experiments are adapted for high school chemistry. The five experiments are used to correlate results obtained with the inexpensive spectrophotometer to those obtained with a commercial spectrophotometer, the...
Show moreAn inexpensive visible range spectrophotometer of good instructional value is prepared as a means of introducing instrumental analysis to the high school chemistry curriculum. Design and details of construction of the spectrophotometer are presented and five standard spectrophotometric experiments are adapted for high school chemistry. The five experiments are used to correlate results obtained with the inexpensive spectrophotometer to those obtained with a commercial spectrophotometer, the Bausch and Lomb Spectronic 20.
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Date Issued: 1974
PURL: http://purl.flvc.org/fcla/dt/13666
Subject Headings: Chemistry--Study and teaching (Secondary), Spectrophotometry
Format: Document (PDF)

Title: OBSERVATIONS OF ATMOSPHERIC HYDROXYL AND THEIR SIGNIFICANCE TO MIDDLE ATMOSPHERIC PHOTOCHEMISTRY.
Creator: MINSCHWANER, KENNETH ROBERT, Florida Atlantic University
Abstract/Description: Observations of the vertical column abundance of atmospheric hydroxyl (OH) have been made using a Pepsios (polyetalon pressure-scanned interferometric optical spectrometer). The measurements were taken at both Fritz Peak, Colorado (40°N) and Boca Raton, Florida (26° N) during the period 1985-86. These are high resolution measurements of the resonance absorption of sunlight by OH in the P1(1) A^2 sigma - x^2 pi (0,0) transition at 3081.66 A. The observations are of relevance to the problem of...
Show moreObservations of the vertical column abundance of atmospheric hydroxyl (OH) have been made using a Pepsios (polyetalon pressure-scanned interferometric optical spectrometer). The measurements were taken at both Fritz Peak, Colorado (40°N) and Boca Raton, Florida (26° N) during the period 1985-86. These are high resolution measurements of the resonance absorption of sunlight by OH in the P1(1) A^2 sigma - x^2 pi (0,0) transition at 3081.66 A. The observations are of relevance to the problem of stratospheric ozone reduction by man-made pollution. Attempts to model the photochemistry of the middle atmosphere and to predict its response to these pollutants depend heavily on an accurate observational data base of many middle atmospheric constituents. This OH data base contributes information which is of critical importance to theories describing middle atmospheric processes. The author's measurements are discussed within the context of the ten-year data base accumulated by Dr. Clyde Burnett. Observed geographic and seasonal regularities, as well as short-period excursions in the OH abundances, have not been fully explained by current photochemical theory.
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Date Issued: 1987
PURL: http://purl.flvc.org/fcla/dt/14357
Subject Headings: Atmospheric ozone, Photochemistry
Format: Document (PDF)

Title: POLYCHAETE COLONIZATION PATTERNS IN THE LOXAHATCHEE RIVER ESTUARY, PALM BEACH COUNTY, FLORIDA.
Creator: DIAL, ROBERT STEPHEN., Florida Atlantic University
Abstract/Description: Colonization experiments were conducted in the Loxahatchee River estuary to characterize the response patterns of polychaetes to simulated small-scale disturbances. Colonizing polychaetes clustered into three groups based upon their time of establishment and degree of population response. The lack of significant response to disturbance by several classical opportunists does not support predictive models of colonization based on differences in adaptive strategies. Community resiliency, or the...
Show moreColonization experiments were conducted in the Loxahatchee River estuary to characterize the response patterns of polychaetes to simulated small-scale disturbances. Colonizing polychaetes clustered into three groups based upon their time of establishment and degree of population response. The lack of significant response to disturbance by several classical opportunists does not support predictive models of colonization based on differences in adaptive strategies. Community resiliency, or the rate of recovery, showed considerable seasonal variation according to the timing of the applied disturbances. While most of the species common to the natural bottom were present in the experimental boxes after one month, quantitative recovery required eight months. Predictable events included initial colonization by Polydora socialis and Pseudopolydora pulchra and secondary colonization by a number of classical opportunists. Small-scale disturbances during periods of peak recruitment may have actually enriched the benthic community by creating a mosaic of patches in different states of recovery, permitting the co-existence of more species.
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Date Issued: 1984
PURL: http://purl.flvc.org/fcla/dt/14226
Subject Headings: Polychaeta--Florida--Loxahatchee River
Format: Document (PDF)

Title: THE EFFECTS OF NOVELTY ON THE P-300 COMPONENT OF THE EVENT-RELATED POTENTIAL.
Creator: PALMER, ROBERT P., Florida Atlantic University
Abstract/Description: Event-related potentials were studied to explore the effects of novelty, along the dimension of categorizability, on P-300 amplitudes and latency. The effects of spatial and verbal information processing on P-300 amplitude and latency as well as the effects of novelty and processing mode on incidental learning were also studied. No significant P-300 data was demonstrated. A forced choice recognition memory test did show significant differences between the spatial and verbal tasks and between...
Show moreEvent-related potentials were studied to explore the effects of novelty, along the dimension of categorizability, on P-300 amplitudes and latency. The effects of spatial and verbal information processing on P-300 amplitude and latency as well as the effects of novelty and processing mode on incidental learning were also studied. No significant P-300 data was demonstrated. A forced choice recognition memory test did show significant differences between the spatial and verbal tasks and between the three different stimulus types.
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Date Issued: 1982
PURL: http://purl.flvc.org/fcla/dt/14102
Subject Headings: Evoked potentials (Electrophysiology)
Format: Document (PDF)

Title: TM MODE SCATTERING BY A GLASS-ENCLOSED PLASMA CYLINDER.
Creator: QUINNELL, ROBERT DOUGLASS., Florida Atlantic University
Abstract/Description: Expressions are developed for the near and far field angular intensity distributions of TM mode scattering of a plane wave by a glass-enclosed plasma cylinder. Numerical computations for a simple collisionless plasma model are made in order to study the effect of the free electron density structure on intensity distributions. The inverse problem is briefly considered.
Date Issued: 1973
PURL: http://purl.flvc.org/fcla/dt/13560
Subject Headings: Scattering (Physics)
Format: Document (PDF)

Title: MICROBIAL SUCCESSIONS IN CYCLODIENE-ENRICHED ECOSYSTEMS AND ISOLATION OF APPARENT PESTICIDE DEPENDENTS.
Creator: THOMANN, WAYNE ROBERT., Florida Atlantic University
Abstract/Description: Laboratory model ecosystems, enriched with aldrin and dieldrin, were employed to study pesticide-induced succession and to provide microorganisms which degrade these compounds. Seventy-two pesticide-tolerant bacteria were isolated and succession was demonstrated in all systems. Bioconcentration by an alga was observed in two of the microcosms. Gram-positive bacteria were not isolatable after pesticide enrichment, indicating a greater sensitivity to these compounds. Radioautograms showed that...
Show moreLaboratory model ecosystems, enriched with aldrin and dieldrin, were employed to study pesticide-induced succession and to provide microorganisms which degrade these compounds. Seventy-two pesticide-tolerant bacteria were isolated and succession was demonstrated in all systems. Bioconcentration by an alga was observed in two of the microcosms. Gram-positive bacteria were not isolatable after pesticide enrichment, indicating a greater sensitivity to these compounds. Radioautograms showed that 80% of screened isolates were capable of varying degrees of pesticide degradation. Microbial response to the pesticides appeared to be related to the presence of other organic materials with the nutritionally poor ecosystem favoring pesticide destruction. Cometabolic tendencies were demonstrated by 4 isolates in the presence of pesticides augmented with glucose and peptone.
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Date Issued: 1976
PURL: http://purl.flvc.org/fcla/dt/13779
Subject Headings: Pesticides--Biodegradation
Format: Document (PDF)

Title: MODE-MODE COUPLING IN AN ELECTRON BEAM PLASMA.
Creator: ELKMAN, WILLIAM ROBERT., Florida Atlantic University
Abstract/Description: A coherent nonlinear wave-wave coupling effect which is consistent with a more complete description of damping effects of a plane wave disturbance of a finite plasma initially spatially uniform and Maxwellian in velocity space is considered. A smeared out ion background is assumed and the coupling between the ions and electrons is neglected. A self consistent field and collective coordinate approach is used to obtain a dispersion relation for mode coupling in a plasma. The equations for the...
Show moreA coherent nonlinear wave-wave coupling effect which is consistent with a more complete description of damping effects of a plane wave disturbance of a finite plasma initially spatially uniform and Maxwellian in velocity space is considered. A smeared out ion background is assumed and the coupling between the ions and electrons is neglected. A self consistent field and collective coordinate approach is used to obtain a dispersion relation for mode coupling in a plasma. The equations for the amplitudes and the frequencies are solved numerically both by direct time integration and by a perturbation method for two and three modes. The perturbation method solutions are obtained for the n mode equations. The perturbation equations for two modes are solved analytically. For the two mode case the resulting coupling shows that the energy oscillates between the modes and that the periodicity of the amplitudes and the frequencies is associated with the initial parameters. Energy feeding between the modes is also observed for three or more modes. However, phase mixing occurs for more than two modes.
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Date Issued: 1973
PURL: http://purl.flvc.org/fcla/dt/13593
Subject Headings: Coupled mode theory, Electron beams
Format: Document (PDF)

Title: IN VITRO INACTIVATION OF UREAPLASMA UREALYTICUM BY SPERMICIDAL-GERMICIDAL AGENTS.
Creator: TATAVOSSIAN, ROBERT., Florida Atlantic University
Abstract/Description: Five commercially available (OTC) and one non-commercially available contraceptive-germicidal agents were tested in vitro for their potential growth inhibition properties against Ureaplasma urealyticum, a human genital Mycoplasma. These organisms are capable of causing numerous genitourinary disorders including vulvovaginitis, cervicitis, endometritis, and nongonococcal urethritis (NGU). Exposure of the test microorganisms to the OTC intravaginal chemical contraceptives, following 24-hour...
Show moreFive commercially available (OTC) and one non-commercially available contraceptive-germicidal agents were tested in vitro for their potential growth inhibition properties against Ureaplasma urealyticum, a human genital Mycoplasma. These organisms are capable of causing numerous genitourinary disorders including vulvovaginitis, cervicitis, endometritis, and nongonococcal urethritis (NGU). Exposure of the test microorganisms to the OTC intravaginal chemical contraceptives, following 24-hour incubation intervals, and ·a continuous incubation regimen for two weeks, indicated that a static influence was evident with only one dilution factor being Ureaplasma-cidal. After slight procedure modification for testing the SGCA noncommercially available product, because the growth medium components were reacting with the SGCA preparation, a marked difference in effectiveness was found. Unlike OTC contraceptives, the liquid concentrate form of SGCA was shown to be Ureaplasma-cidal at each dilution and never Ureaplasma-static.
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Date Issued: 1984
PURL: http://purl.flvc.org/fcla/dt/14196
Subject Headings: Mycoplasmatales, Contraceptives, Vaginal, Spermicides
Format: Document (PDF)

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