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Articles 31 - 60 of 65
Full-Text Articles in Physical Sciences and Mathematics
Africa As A Regional And Global Source Of Atmospheric Gases And Particulates, Lawrence Mtetwa
Africa As A Regional And Global Source Of Atmospheric Gases And Particulates, Lawrence Mtetwa
Dissertations, Theses, and Masters Projects
The role of the continent of Africa as a source of gaseous and particulate emissions to the atmosphere is investigated in this study. Sources of gases and particulates from Africa include fossil fuel combustion, biomass burning, and biogenic soil emissions of nitric oxide. This study represents the first comprehensive database of gaseous and particulate emissions developed for the continent of Africa on a country by country basis and establishes the framework for country-by-country, assessment of greenhouse gases emissions as required by the Kyoto Conference on Global Warming, which was attended by representatives from more than 100 countries. Calculations of gases …
A Framework For Planning Sustainable Development In Coastal Regions: An Island Pilot Project In Croatia, Anamarija Frankic
A Framework For Planning Sustainable Development In Coastal Regions: An Island Pilot Project In Croatia, Anamarija Frankic
Dissertations, Theses, and Masters Projects
There have been few empirical studies demonstrating how sustainable development has been realized in a specific regime. This project developed and tested a framework for comprehensive planning including environmental, social, and economic considerations on the island Cres in the Croatian Coastal Zone. The approach defines sustainable development in coastal regions, and develops a generic framework incorporating biological, geological, chemical, physical, social, and economic factors necessary for sustainable development. The generic framework ensures that planning decisions will be based on environmental concerns of the area. A prime principle of the approach is that any plan must work with the environmental limits …
Radical Environmentalism And Religion, Evelyn Louise Bush
Radical Environmentalism And Religion, Evelyn Louise Bush
Dissertations, Theses, and Masters Projects
No abstract provided.
Relative Risk Assessment For Cape Hatteras National Seashore, John Cary Buie
Relative Risk Assessment For Cape Hatteras National Seashore, John Cary Buie
Dissertations, Theses, and Masters Projects
No abstract provided.
Field And Laboratory Evidence Of Pheromone Mediated Mating Behavior In The Blue Crab, Callinectes Sapidus, Donald S. Gibbs
Field And Laboratory Evidence Of Pheromone Mediated Mating Behavior In The Blue Crab, Callinectes Sapidus, Donald S. Gibbs
Dissertations, Theses, and Masters Projects
No abstract provided.
The Primary Source Of Environmental Concern: New Environmental Paradigm Or Presumed Vested Interest Based On Area Of Residence?, Scott Christopher Ramsey
The Primary Source Of Environmental Concern: New Environmental Paradigm Or Presumed Vested Interest Based On Area Of Residence?, Scott Christopher Ramsey
Dissertations, Theses, and Masters Projects
No abstract provided.
Error Analysis In Tidal Wetland Inventory Change Detection: Comparison Of Historical Mapped Wetlands Of The Achilles Quadrangle Between 1976 To 1989, Stacy A. C. Nelson
Error Analysis In Tidal Wetland Inventory Change Detection: Comparison Of Historical Mapped Wetlands Of The Achilles Quadrangle Between 1976 To 1989, Stacy A. C. Nelson
Dissertations, Theses, and Masters Projects
No abstract provided.
High-Resolution Seismic Stratigraphy Of The Ganges-Brahmaputra River System: Subaqueous Deltaic Progradation On The Bengal Shelf, Beth Michele Levy
High-Resolution Seismic Stratigraphy Of The Ganges-Brahmaputra River System: Subaqueous Deltaic Progradation On The Bengal Shelf, Beth Michele Levy
Dissertations, Theses, and Masters Projects
No abstract provided.
Movements And Behavior Of Wild And Head-Started Sea Turtles, John A. Keinath
Movements And Behavior Of Wild And Head-Started Sea Turtles, John A. Keinath
Dissertations, Theses, and Masters Projects
Flipper-tagging, aerial surveys, and satellite telemetry was used to investigate the occurrence, migratory routes, distances traveled, swimming speeds, diving behavior, and the relation of water temperature to movements and timing of migration of wild loggerhead (Caretta caretta) and Kemp's ridley (Lepidochelys kempii) sea turtles. The behavior and movements of head-started loggerhead turtles was investigated with satellite telemetry and compared to wild turtles. Flipper-tagged loggerhead and Kemp's ridley turtles inhabit Chesapeake Bay during the warm months and many return in subsequent seasons. Aerial surveys showed that loggerhead turtles migrate from south of Cape Hatteras to northern waters during May and June, …
Market Interactions And Competition Between Public And Private Oyster Production And Supplies From Other States, Ya-Ke Hsu
Dissertations, Theses, and Masters Projects
Oyster production in Virginia has declined dramatically in the past ten years, causing Virginia oyster processors to rely increasingly on oyster supplies from other regions. In response to the industry problems, the Virginia Marine Resources Commission (VMRC) developed and began implementing an Oyster Fishery Management Plan (OFMP) in 1985. Primarily, the plan seeks to increase Virginia oyster production from both public and leased grounds. A large increase in production could significantly affect the oyster market. There is thus a need to understand the Virginia oyster market, which derives raw material supplies primarily from public and leased-grounds production and from other …
The Structure Of The Holocephalan Head And The Relationships Of The Chondrichthyes, Eileen D. Grogan
The Structure Of The Holocephalan Head And The Relationships Of The Chondrichthyes, Eileen D. Grogan
Dissertations, Theses, and Masters Projects
The interrelationship of the chondrichthyan subclasses is evaluated based on divergence in the nature of the suspensorium, the preorbital cranial anatomy, the distribution of major venous sinuses and localization of hematopoietic tissue. The anatomy of representative extant taxa was examined by radiography and/or dissection. Fossil selachians, paraselachians, and holocephalans of the Bear Gulch of Montana, U.S.A. (Mississippian, Namurian E2B) were studied for evidence of vascular pigmentation, suspensorium, and cranial, branchial, and pectoral anatomy. These studies validate the suspensorial condition of autodiastyly and suggest autodiastyly is a fundamental condition involved in the basic radiation of Chondrichthyes. The plesiomorphous condition of all …
Gender Roles And Home Computer Use By Children, Trelles Whitfield D'Alemberte
Gender Roles And Home Computer Use By Children, Trelles Whitfield D'Alemberte
Dissertations, Theses, and Masters Projects
No abstract provided.
A Comparison Of Meristics And Morphometrics Between Two Strains Of Pond Cultured Striped Bass (Morone Saxatilis), Steven Gornak
A Comparison Of Meristics And Morphometrics Between Two Strains Of Pond Cultured Striped Bass (Morone Saxatilis), Steven Gornak
Dissertations, Theses, and Masters Projects
No abstract provided.
Knowledge-Based System For Flight Information Management, Wendell R. Ricks
Knowledge-Based System For Flight Information Management, Wendell R. Ricks
Dissertations, Theses, and Masters Projects
No abstract provided.
Meristic And Morphometric Comparison Of Three Juvenile Alosa Species: Blueback Herring, A Aestivalis; Alewife, A Pseudoharengus; And American Shad, A Sapidissima, Joseph C. Desfosse
Meristic And Morphometric Comparison Of Three Juvenile Alosa Species: Blueback Herring, A Aestivalis; Alewife, A Pseudoharengus; And American Shad, A Sapidissima, Joseph C. Desfosse
Dissertations, Theses, and Masters Projects
No abstract provided.
Virginia's Pelagic Recreational Fishery: Biological, Socioeconomic And Fishery Components, Eleanor A. Bochenek
Virginia's Pelagic Recreational Fishery: Biological, Socioeconomic And Fishery Components, Eleanor A. Bochenek
Dissertations, Theses, and Masters Projects
Catch, effort, fleet size and boat owner expenditure data were collected on Virginia's recreational marlin/tuna fishery for the 1983-1985 seasons. Logbooks, dockside interviews and a telephone survey were evaluated to determine which method was the most efficient and effective for collecting and estimating catch and effort for Virginia's pelagic recreational fishery. In 1984, logbooks were used to collect catch and effort data and fishing effort was estimated using Bochenek's method. Very few fishermen returned their logbooks and as a result this data is probably less reliable than the data collected in other years. Due to the poor return of logbooks, …
A Morphological Study Of The Pharyngeal Sac Of Two Species Of Stromateid Fishes: Perrilus Triacanthus And P Paru, Thomas R. Sminkey
A Morphological Study Of The Pharyngeal Sac Of Two Species Of Stromateid Fishes: Perrilus Triacanthus And P Paru, Thomas R. Sminkey
Dissertations, Theses, and Masters Projects
No abstract provided.
Recommendations For Amelioration Of Legal And Environmental Concerns About Mining Of Deepsea Deposits Of Polymetallic Sulfides, Michael P. De Luca
Recommendations For Amelioration Of Legal And Environmental Concerns About Mining Of Deepsea Deposits Of Polymetallic Sulfides, Michael P. De Luca
Dissertations, Theses, and Masters Projects
No abstract provided.
Lower Chesapeake Bay Surface Turbidity Variations As Detected From Landsat Images, Michael S. Fedosh
Lower Chesapeake Bay Surface Turbidity Variations As Detected From Landsat Images, Michael S. Fedosh
Dissertations, Theses, and Masters Projects
Landsat images are analyzed to investigate the causes of turbidity variations in lower Chesapeake Bay surface water. Visual analysis and image enhancement are used in association with optical film density data obtained along selected Bay transects. The optical density data of all images, inversely related to surface turbidity, are used to produce residual turbidity profiles showing turbidity above and below average conditions. meteorological conditions have Images with similar tidal or their residual optical density data averaged to identify probable causes of above average turbidity levels. Freshwater discharge does not directly contribute suspended sediment to Chesapeake Bay, except from the Potomac …
Late Cenozoic Landforms, Stratigraphy And History Of Sea Level Oscillations Of Southeastern Virginia And Northeastern North Carolina, Pamela Crowson Peebles
Late Cenozoic Landforms, Stratigraphy And History Of Sea Level Oscillations Of Southeastern Virginia And Northeastern North Carolina, Pamela Crowson Peebles
Dissertations, Theses, and Masters Projects
A depositional model accounting for the stratigraphic sequences which accumulate during a marine transgression across a dissected coastal plain aids in understanding the geologic history of southeastern Virginia and northeastern North Carolina. Application of this model to the Shirley Formation (middle Pleistocene) and the Sedgefield and Lynnhaven members of the Tabb Formation (late Pleistocene) allows delineation of (1) the facies within, (2) the areal extent of, and (3) the landforms associated with these lithostratigraphic units. Facies within each lithostratigraphic unit consist of (1) a vertical succession from local, basal, channel-fill deposits and coarse, basal, lag deposits which grade upward into …
Participation Of Environmental Coalitions In The Development Of Public Policy, Wayne Richard Knight
Participation Of Environmental Coalitions In The Development Of Public Policy, Wayne Richard Knight
Dissertations, Theses, and Masters Projects
No abstract provided.
Reproductive Biology And Recreational Fishery For Spotted Seatrout, Cynoscion Nebulosus, In The Chesapeake Bay Area, Nancy J. Brown
Reproductive Biology And Recreational Fishery For Spotted Seatrout, Cynoscion Nebulosus, In The Chesapeake Bay Area, Nancy J. Brown
Dissertations, Theses, and Masters Projects
No abstract provided.
The Socioeconomic And Fisheries Characteristics Of Virginia's Commercial Sport Fishing Industry, Anne R. Marshall
The Socioeconomic And Fisheries Characteristics Of Virginia's Commercial Sport Fishing Industry, Anne R. Marshall
Dissertations, Theses, and Masters Projects
No abstract provided.
Behavioral Response Of The Amphipod Gammarus Fasciatus And The Isopod Asellus Communis To Fish (Lepomis Macrochirus) And Dragon Fly (Gomphidae), Bill D. Saunders
Behavioral Response Of The Amphipod Gammarus Fasciatus And The Isopod Asellus Communis To Fish (Lepomis Macrochirus) And Dragon Fly (Gomphidae), Bill D. Saunders
Dissertations, Theses, and Masters Projects
No abstract provided.
Morphology And Development Of Hatchery Cultured American Shad (Alosa Sapidissima Wilson), With A Comparison Between Field Sampled And Cultured, James Roy Johnson
Morphology And Development Of Hatchery Cultured American Shad (Alosa Sapidissima Wilson), With A Comparison Between Field Sampled And Cultured, James Roy Johnson
Dissertations, Theses, and Masters Projects
No abstract provided.
Development And Application Of Pleistocene Sea Level Curve To The Coastal Plain Of Southeastern Virginia, Linda R. Zellmer
Development And Application Of Pleistocene Sea Level Curve To The Coastal Plain Of Southeastern Virginia, Linda R. Zellmer
Dissertations, Theses, and Masters Projects
No abstract provided.
Historical Evolution Of Coastal Sand Dunes On Currituck Spit, Virginia/North Carolina, Harold F. Hennigar
Historical Evolution Of Coastal Sand Dunes On Currituck Spit, Virginia/North Carolina, Harold F. Hennigar
Dissertations, Theses, and Masters Projects
No abstract provided.
Comparison Of Scales And Otoliths For Determining Age And Growth Of The Alewife (Alosa Pseudoharengus, Wilson), Douglas Wayne Lipton
Comparison Of Scales And Otoliths For Determining Age And Growth Of The Alewife (Alosa Pseudoharengus, Wilson), Douglas Wayne Lipton
Dissertations, Theses, and Masters Projects
No abstract provided.
The Interaction Of Eolian Sand Transport, Vegetation, And Dune Geomorphology: Currituck Spit, Virginia-North Carolina, Andrew L. Gutman
The Interaction Of Eolian Sand Transport, Vegetation, And Dune Geomorphology: Currituck Spit, Virginia-North Carolina, Andrew L. Gutman
Dissertations, Theses, and Masters Projects
No abstract provided.
The Automated Environmental Information And Design Analysis System, George William Gavaras
The Automated Environmental Information And Design Analysis System, George William Gavaras
Dissertations, Theses, and Masters Projects
No abstract provided.