Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Earth Sciences (1881)
- Environmental Sciences (697)
- Geology (494)
- Computer Sciences (435)
- Mathematics (429)
-
- Engineering (393)
- Chemistry (344)
- Arts and Humanities (285)
- Oceanography and Atmospheric Sciences and Meteorology (270)
- American Studies (234)
- Life Sciences (228)
- Education (223)
- Environmental Indicators and Impact Assessment (220)
- Social and Behavioral Sciences (214)
- Statistics and Probability (184)
- Physics (175)
- Other Oceanography and Atmospheric Sciences and Meteorology (146)
- Geochemistry (140)
- Geomorphology (138)
- Speleology (129)
- Medicine and Health Sciences (127)
- Hydrology (117)
- Science and Mathematics Education (114)
- Civil and Environmental Engineering (102)
- Water Resource Management (99)
- Sustainability (83)
- Artificial Intelligence and Robotics (80)
- Computer Engineering (76)
- Other Earth Sciences (70)
- Keyword
-
- Florida (64)
- Hillsborough Bay (63)
- Quantitative literacy (63)
- Seagrass (62)
- Water quality (57)
-
- Karst (56)
- Tampa Bay (55)
- Caulerpa prolifera (54)
- Nitrogen (54)
- Romania (54)
- Sediments (51)
- Environment (46)
- Sewage (42)
- Mathematics (41)
- Mud (41)
- Nutrient (41)
- Areal photo (40)
- Chlorophyll (40)
- Hooker's Point (40)
- Monitoring sites (40)
- Regulation (40)
- Seabed (40)
- Sewage treatment (40)
- Tampa Bay Area Study Group (40)
- Wastewater management (40)
- Assessment (37)
- Machine Learning (34)
- Numeracy (34)
- Quantitative reasoning (33)
- Speleogenesis (33)
- Publication Year
- Publication
-
- USF Tampa Graduate Theses and Dissertations (1834)
- International Journal of Speleology (909)
- School of Geosciences Faculty and Staff Publications (355)
- Studia UBB Geologia (211)
- Undergraduate Journal of Mathematical Modeling: One + Two (182)
-
- Numeracy (170)
- Reports (162)
- Sinkhole Conference 2015 (48)
- Geology Faculty Publications (39)
- Chemistry Faculty Publications (22)
- Data Sets (20)
- Images (20)
- The International Workshop on Ice Caves (18)
- National Cave and Karst Management Symposium 2013 (17)
- USF St. Petersburg Campus Faculty Publications (16)
- Military Cyber Affairs (15)
- Physics Faculty Publications (15)
- Mathematics and Statistics Faculty Publications (11)
- School of Geosciences Student Publications (11)
- FRONTIERS UNBOUND: Exploring Extreme Environments (9)
- University of South Florida (USF) M3 Publishing (8)
- Environmental Sustainability Oral Histories (6)
- Marine Science Faculty Publications (5)
- Department of Leadership, Policy, and Lifelong Learning (4)
- Suburban Sustainability (4)
- Textbooks Collection (4)
- Computer Science and Engineering Faculty Publications (3)
- Environmental Sustainability Books (3)
- Journal of Ecological Anthropology (3)
- Journal of Practitioner Research (3)
- Publication Type
- File Type
Articles 3751 - 3780 of 4144
Full-Text Articles in Physical Sciences and Mathematics
Recent Improvements Of Water Quality And Biological Indicators In The North-Eastern Tampa Bay, City Of Tampa Bay Department Of Sanitary Sewers
Recent Improvements Of Water Quality And Biological Indicators In The North-Eastern Tampa Bay, City Of Tampa Bay Department Of Sanitary Sewers
Reports
Simple analysis of our data clearly indicate that water quality conditions in north-eastern Tampa Bay has improved during our study. Further, there are no indications that this improvement has yet climaxed.
1987 File Geodatabase Containing Photo Point Locations, Aerial Photos, And Flight Maps, City Of Tampa Department Of Sanitary Sewers Bay Study Group, Pete Reehling, Richard Mckenzie
1987 File Geodatabase Containing Photo Point Locations, Aerial Photos, And Flight Maps, City Of Tampa Department Of Sanitary Sewers Bay Study Group, Pete Reehling, Richard Mckenzie
Data Sets
The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the photo point locations, aerial photos, and flight maps for the year 1987.
The State Of Tampa Bay 1986, Agency On Bay Management
The State Of Tampa Bay 1986, Agency On Bay Management
Reports
When the Tampa Bay Regional Planning Council created the Agency on Bay Management, it charged the group with preparing an annual status of the condition of Tampa Bay, the state's largest open water estuary. Therefore, pursuant to the adopted rules of the Council's Agency on Bay Management, this document is the first State of Tampa Bay report. This report includes a discussion of the history of the Agency, an evaluation of how well the bay is doing environmentally and recommendations about what needs to be done in the work program aimed at improving Tampa Bay.
Genetic Analysis Of Evolutionary Processes, Horst Wilkens
Genetic Analysis Of Evolutionary Processes, Horst Wilkens
International Journal of Speleology
Epigean and cave populations of A. fasciatus (Characidae, Pisces) differ in a series of morphological physiological, and ethological features. The interfertility of these populations made possible a genetic analysis of organs characteristic of interspecific divergence. The study of the regressive organs “eye” and “melanophore system” on the one hand and that of the constructively improved “gustatory equipment" and "feeding behaviour” on the other yielded identical principles of genetic manifestation: (1) All features have a polygenic basis with an at least di- to hexahybrid inheritance. (2) All polygenes have the same amount of expressivity. (3) After recombination of a minimum number …
Les Mésaventures Des Sources De L'Estavelle Et De L'Inversac En Languedoc Méditerranéen, Bernard Gèze
Les Mésaventures Des Sources De L'Estavelle Et De L'Inversac En Languedoc Méditerranéen, Bernard Gèze
International Journal of Speleology
The Estavelle and the Inversac are two celebrated springs in the Mediterranean Languedoc (South of France). Unfortunately, the first one has been chosen as a type for the karstic cavities alternatively absorbing or discharging the waters, according to the season, which has never been the case. On the opposite, the second one can be taken as model for this alternation as swallow hole or emergence.
Carbonate Surface Solution In The Classical Karst, Franco Cucchi, Fabio Forti, Furio Finocchiaro
Carbonate Surface Solution In The Classical Karst, Franco Cucchi, Fabio Forti, Furio Finocchiaro
International Journal of Speleology
The current research on the dissolution of carbonate rocks in the Karst of Trieste indicates that the average degradation of surfaces exposed to atmospheric agents is 0.028 mm/year with an average rainfall of 1350 mm. The maximum levels (0.031 mm/year) correspond to micro-crystalline limestones, the minimum values (0.014 mm/year) to dolomites.
Lake Weir Eutrophication Study: Final Report For Phases I And Ii, Thomas Crisman, Anne E. Keller, Jeffrey K. Jones, Henry Meier, John R. Beaver
Lake Weir Eutrophication Study: Final Report For Phases I And Ii, Thomas Crisman, Anne E. Keller, Jeffrey K. Jones, Henry Meier, John R. Beaver
School of Geosciences Faculty and Staff Publications
No abstract provided.
Relationships Between The Internal And External Evolution Of The Monte Cucco Karst Complex, Umbria, Central Italy, Fausto Guzzetti
Relationships Between The Internal And External Evolution Of The Monte Cucco Karst Complex, Umbria, Central Italy, Fausto Guzzetti
International Journal of Speleology
The relationships between the internal and external evolution of the Mt. Cucco karst complex are studied. A classic set of equations, involving the oxidation of hydrogen sulphide, originated at depth in an evaporitic formation, is used to explain the presence of massive gypsum deposits in the Mt. Cucco and the Faggeto Tondo caves. The distribution and the morphology of more than 30 caves in the system, the presence of gypsum, always located along faults, and the presence of broken stalactites and columns, suggest that the evolution of the karst system has been controlled by tectonic movements. Relationships between the development …
The Role Of Gradualism And Punctuation In Cave Adaptation, David C. Culver
The Role Of Gradualism And Punctuation In Cave Adaptation, David C. Culver
International Journal of Speleology
The theory of punctuated equilibrium, offers a potential explanation for the profound morphological changes that accompany isolation in caves. I consider three aspects of punctuation theory: the association of morphological change with speciation; periods of stasis; and the number of genes controlling a trait. If the evolution of cave organisms is associated with speciation, then speciose groups and cave species derived from other cave-limited species should show increased adaptation. Analysis of Kane and Barr’s data on the subspecies of Neaphaenops tellkampfi and Holsinger’s data on crangonyctid amphipods fails to provide any support for the hypothesis. If the evolution is characterized …
1987 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group
1987 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group
Images
The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the aerial photos for the year 1987.
The Evolution Of Non-Relictual Tropical Troglobites, Francis G. Howarth
The Evolution Of Non-Relictual Tropical Troglobites, Francis G. Howarth
International Journal of Speleology
The discovery of terrestrial troglobites living in caves on young oceanic islands with close epigean relatives living in nearby surface habitats offers unique opportunities to develop and test hypotheses concerning their evolution. Studies comparing the physiological ecology of troglobites with their epigean relatives suggest that troglobites are highly specialized to exploit resources within the system of interconnected medium-sized voids (mesocaverns) and only colonize cave passages (macrocaverns) with a stable, water vapor-saturated atmosphere. Few other animals can live in the mesocaverns. Rather than being relicts isolated in caves by the extinction of their epigean ancestral population, troglobites appear to evolve by …
Stratigraphic Sections In The Ste. Genevieve Formation (Middle Mississippian) Exposed In Garrison Chapel Karst Area Caverns - Western Monroe County, Indiana Usa, Garre A. Conner
International Journal of Speleology
The Ste. Genevieve Formation and related strata in the Blue River Group comprise more than 75 meters of Middle Mississippian carbonate deposition across the Indiana portion of the Eastern Interior Basin in Valmeyeran seaways. Forty kilometres of subterranean caverns occur in this carbonate rock sequence in the Garrison Chapel karst area where blind valleys are a striking topographical feature. The bedrock floor of a karst valley is locally accordant with a continuous horizon of lithographic limestone named Indian Creek Beds and illustrated on five cavern stratigraphic reference profiles.
History Of Cultural Eutrophication At Lake Manitou, Indiana And Prospects For Its Management, Thomas Crisman
History Of Cultural Eutrophication At Lake Manitou, Indiana And Prospects For Its Management, Thomas Crisman
School of Geosciences Faculty and Staff Publications
No abstract provided.
Food-Finding Ability In Cave Fish (Astyanax Fasciatus), Kathrin Hüppop
Food-Finding Ability In Cave Fish (Astyanax Fasciatus), Kathrin Hüppop
International Journal of Speleology
When competing under cave similar conditions, such as darkness and food scarcity, cave fish find much more food than their epigean relatives. The cave fish not only react much faster to food but also their food-finding ability is four times higher compared to that of the epigean fish. Several morphological and ethological alterations in the cave fish, described by other authors, seem to be responsible for this adaptation to the cave conditions.
Paleoenvironmental Data For N. W. Georgia, U.S.A., From Fossils In Cave Speleothems, George A. Brook, Eugene P. Keferl, Rudy J. Nickmann
Paleoenvironmental Data For N. W. Georgia, U.S.A., From Fossils In Cave Speleothems, George A. Brook, Eugene P. Keferl, Rudy J. Nickmann
International Journal of Speleology
Pollen grains and gastropod shells in two speleothems from Red Spider Cave, Georgia indicate that ca. 10,000 yr B.P. the vegetation near the cave was Mixed Mesophytic Forest. Conditions were cooler and moister than today and a shallow pond existed in the doline above the cave. As these findings support palynologic evidence from nearby pond sites it is clear that cave speleothems are a potential source of paleoecological data to ca. 350,000 yr. B.P.
Diatom, Contributors Of Coralloid Speleothems, From Togawa-Sakaidani-Do Cave In Miyazaki Prefecture, Central Kyushu, Japan, Naruhiko Kashima, Teruo Irie, Nobuhiro Kinoshita
Diatom, Contributors Of Coralloid Speleothems, From Togawa-Sakaidani-Do Cave In Miyazaki Prefecture, Central Kyushu, Japan, Naruhiko Kashima, Teruo Irie, Nobuhiro Kinoshita
International Journal of Speleology
Coralloid speleothems are commonly distributed in Togawa-Sakaidani-do Cave in Miyazaki Prefecture, Central Kyushu, but their speleological study has not heretofore been achieved. Light and scanning microscopes analyses revealed that coralloid speleothems consist of alternating layers of diatom colonies, detrital minerals and clay. Electron microprobe analysis shows coralloid speleothems to be silicious. This paper asserts that diatom (genus Melosira) is one of the important contributors to siliceous coralloid speleothems in the threshold zone at non-calcareous caves.
Winter And Summer Sediment Nutrient Exchange Rates In Hillsborough Bay, Florida, City Of Tampa Department Of Sanitary Sewers
Winter And Summer Sediment Nutrient Exchange Rates In Hillsborough Bay, Florida, City Of Tampa Department Of Sanitary Sewers
Reports
Winter and summer in-situ measurements of sediment oxygen demand (SOD) and nutrient exchange rates (NERs) were taken from sandy and muddy sediments in Hillsborough Bay during 1986. The summer-mud SOD rate of 0.23 g 02/m2/hr was roughly twice the summer-sand, winter-sand and winter-mud SOD rates. In general, nutrient flux rates into the water column were usually greater from mud relative to sand, and during the summer compared to the winter. Reservations in the application of the SOD/NER data and recommendations for future SOD/NER measurements are discussed.
Ecological Assessment, Classification And Management Of Tampa Bay Tidal Creeks, Tampa Bay Regional Planning Council (Tbrpc)
Ecological Assessment, Classification And Management Of Tampa Bay Tidal Creeks, Tampa Bay Regional Planning Council (Tbrpc)
Reports
The final product is a detailed restoration and management plan for three minor tributaries in the Tampa Bay watershed and one general application. It is the intent of the Council to implement all elements of the four plans wherever feasible during Developments of Regional Impact (DRI's) and Intergovernmental Coordination and Review (IC&R) reviews and through coordinat.ion with the DNR gill-net license fee habitat restoration program, as well as local government initiatives. The efforts of the Council's Agency on Bay Management will also be critical in implementing the findings and recommendations of this project.
Preliminary Study Of The Seagrasses In Middle Tampa Bay Between Apollo Beach And Simmons Park, Mangrove Systems, Inc.
Preliminary Study Of The Seagrasses In Middle Tampa Bay Between Apollo Beach And Simmons Park, Mangrove Systems, Inc.
Reports
Comparison of recent (1986) and earlier (1983) aerial photography indicated that an apparent recovery of seagrasses was occurring on the subtidal shelf north of Simmons Park (Ruskin) and south of Apollo Beach, in Middle Tampa Bay (Fig. 1). This was suggested by the numerous circular patches of grass observed on the offshore portions of the shelf. This observation provided the incentive to undertake a preliminary assessment of seagrass species composition, percent cover, and shoot density along transects in this area. This study was a cooperative effort between the Bay Study Program (City of Tampa) and Mangrove Systems, Inc.
1986 Florida Water Quality Assessment 305(B) Technical Report, Joe Hand, Victoria Tauxe, John Watts, Bureau Of Water Quality Management - Division Of Environmental Programs
1986 Florida Water Quality Assessment 305(B) Technical Report, Joe Hand, Victoria Tauxe, John Watts, Bureau Of Water Quality Management - Division Of Environmental Programs
Reports
This report identifies the quality and trends of Florida's surface waters, the causes of water quality problems and the present cleanup activities conducted by DER and EPA to improve these problem areas. The assessment was accomplished by analyzing the available STORET water quality data for the 1970-1985 time period (STORET is EPA's computerized water quality data base). Data from approximately 97,000 water quality samples were assessed in this report which necessitated the extensive use of computer analysis. The computer analysis required assigning STORET stations to their respective EPA reaches. The EPA reach designation is a convenient national numbering system similar …
Winter Sediment Nutrient Exchange Rates In Hillsborough Bay, Florida, City Of Tampa Department Of Sanitary Sewers
Winter Sediment Nutrient Exchange Rates In Hillsborough Bay, Florida, City Of Tampa Department Of Sanitary Sewers
Reports
The winter sampling of the sediment nutrient exchange rate study of Hillsborough Bay has been completed. These results constitute the interim report of the winter nutrient exchange sampling of Phase II as described in the Plan of Study submitted to the Florida Department of Environmental Regulation on March 31, 1986. The results include winter SOD rate estimates in sandy and muddy sediments. Results also include winter NER estimates in sandy and muddy sediments for total phosphorus (unfiltered), PO4-P, TKN (unfiltered), NO2-N+NO3-N, NH3-N and organic N. These data, in conjunction with the forthcoming …
Transient Electromagnetic Sounding For Groundwater, David V. Fitterman, Mark T. Stewart
Transient Electromagnetic Sounding For Groundwater, David V. Fitterman, Mark T. Stewart
Geology Faculty Publications
The feasibility of using the transient electromagnetic sounding (TS or TDEM) method for groundwater exploration can be studied by means of numerical models. As examples of its applicability to groundwater exploration, we study four groundwater exploration problems: (1) mapping of alluvial fill and gravel zones over bedrock; (2) mapping of sand and gravel lenses in till; (3) detection of salt or brackish water interfaces in freshwater aquifers; and (4) determination of hydrostratigraphy. These groundwater problems require determination of the depth to bedrock; location of resistive, high-porosity zones associated with fresh water; determination of formation resistivity to assess water quality; and …
Determination Of Large-Scale Velocity Structure Of The Crust And Upper Mantle In The Vicinity Of Pavlof Volcano, Alaska, Stephen R. Mcnutt, K. H. Jacob
Determination Of Large-Scale Velocity Structure Of The Crust And Upper Mantle In The Vicinity Of Pavlof Volcano, Alaska, Stephen R. Mcnutt, K. H. Jacob
School of Geosciences Faculty and Staff Publications
Pavlof Volcano is a 2715-m-high stratovolcano located at latitude 55.4°N and longitude 161.9°W, near the western end of the Alaska Peninsula. In this study the large-scale lateral perturbations to a vertical reference velocity structure in the vicinity of Pavlof Volcano are determined using modified versions of standard three-dimensional inversion techniques. We use as the primary data set P wave arrival times and residuals from shallow (deep) regional earthquakes located by the Shumagin Islands seismic network. Relative residuals mainly from refracted (e.g., Pn) arrivals allow us to constrain models for a laterally varying crustal velocity structure. Several strong ray path dependent …
Surface Sediment Composition And Distribution In Hillsborough Bay, Florida 1986, City Of Tampa Department Of Sanitary Sewers Bay Study Group
Surface Sediment Composition And Distribution In Hillsborough Bay, Florida 1986, City Of Tampa Department Of Sanitary Sewers Bay Study Group
Reports
Surface sediments were mapped to determine the approximate boundaries and percent areal coverage of "mud" in Hillsborough Bay. Depth recorder soundings along 29 transects were used in conjunction with sediment grain size analyses form 19 stations to produce a sediment map.
A Study Plan Of Sediment Nutrient Exchange Rates In Hillsborough Bay, Florida, City Of Tampa Department Of Sanitary Sewers
A Study Plan Of Sediment Nutrient Exchange Rates In Hillsborough Bay, Florida, City Of Tampa Department Of Sanitary Sewers
Reports
The City of Tampa is planning a study of sediment nutrient exchange rates in Hillsborough Bay, Florida. The study will supply the FDER Water Quality Analysis Section with information to refine the mathematical modeling of Hillsborough Bay for wasteload allocation. The initial effort, Phase I, will produce a map of Hillsborough Bay identifying areas of "sandy" and "muddy" sediments, and to estimate the areal coverage of these sediment types. The secondary effort, Phase II, will estimate seasonal nutrient exchange rates for "sandy" and "muddy" sediments at a minimum of two locations in Hillsborough Bay. The seasonal estimates of sediment nutrient …
1986 File Geodatabase Containing Photo Point Locations, Aerial Photos, And Flight Maps, City Of Tampa Department Of Sanitary Sewers Bay Study Group, Pete Reehling, Richard Mckenzie
1986 File Geodatabase Containing Photo Point Locations, Aerial Photos, And Flight Maps, City Of Tampa Department Of Sanitary Sewers Bay Study Group, Pete Reehling, Richard Mckenzie
Data Sets
The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the photo point locations, aerial photos, and flight maps for the year 1986.
Historical Analysis Of The Cultural Eutrophication Of Lake Maxinkuckee, Indiana, Thomas Crisman
Historical Analysis Of The Cultural Eutrophication Of Lake Maxinkuckee, Indiana, Thomas Crisman
School of Geosciences Faculty and Staff Publications
No abstract provided.
Evidence For Karstic Mechanisms Involved In The Evolution Of Moroccan Hamadas, Vittorio Castellani, Walter Dragoni
Evidence For Karstic Mechanisms Involved In The Evolution Of Moroccan Hamadas, Vittorio Castellani, Walter Dragoni
International Journal of Speleology
Underground tubular karst features, observed in an arid envinronment of southern Morocco, are described. On the basis of various evidences, it is suggested that such features were originated mainly by condensation water. A computation of the time necessary for their formation supports this hypothesis.
1986 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group
1986 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group
Images
The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the aerial photos for the year 1986.
The Speleogenetic Role Of Air Flow Caused By Convection. 1st Contribution, Arrigo A. Cigna, Paolo Forti
The Speleogenetic Role Of Air Flow Caused By Convection. 1st Contribution, Arrigo A. Cigna, Paolo Forti
International Journal of Speleology
In the past some authors described the speleogenetic role of convection in phreatic conditions. Similar effects exist also in the air-filled part of vadose passages of caves as a consequence of an air circulation due to a relevant temperature gradient; the effects can be enhanced by the presence of some acids as, e.g., H2S, H2SO4, etc. In this paper the conditions matching convection and condensation which produce typical forms, very similar to those found under phreatic conditions, are discussed both for limestone and gypsum caves.