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Articles 2011 - 2040 of 5665
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Commencement Convocation Program, Usf, Baccalaureates, December 11, 2015, University Of South Florida
Commencement Convocation Program, Usf, Baccalaureates, December 11, 2015, University Of South Florida
USF Graduation and Convocation Programs
Honorary Doctor of Science - Eric Jacobsen; Outstanding Graduate - Mary Babcock; King O'Neal Scholars - Matthew Anderson, Stephenie Cannon, Ian Dibble, Wenjun Meng, Dominick Schiavo, Alisa Vasserman, and Savannah Young
The Genesis Of A Lava Cave In The Deccan Volcanic Province (Maharashtra, India), Nikhil R. Pawar, Amod H. Katikar, Sudha Vaddadi, Sumitra H. Shinde, Sharad N. Rajaguru, Sachin V. Joshi, Sanjay P. Eksambekar
The Genesis Of A Lava Cave In The Deccan Volcanic Province (Maharashtra, India), Nikhil R. Pawar, Amod H. Katikar, Sudha Vaddadi, Sumitra H. Shinde, Sharad N. Rajaguru, Sachin V. Joshi, Sanjay P. Eksambekar
International Journal of Speleology
Lava tubes and channels forming lava distributaries have been recognized from different parts of western Deccan Volcanic Province (DVP). Openings of smaller dimension have been documented from the pāhoehoe flows around Pune, in the western DVP. A small lava cave is exposed in Ghoradeshwar hill, near Pune. Detailed field studies of the physical characteristics, structure and morphology of the flows hosting the lava tube has been carried out. This is the first detailed documentation of a lava cave from the DVP. The lava cave occurs in a compound pāhoehoe flow of Karla Formation, characterized by the presence of lobes, toes …
An Investigation Of The Effects Of Chemical And Physical Weathering On Submerged Karst Surfaces, Bryan Charles Booth
An Investigation Of The Effects Of Chemical And Physical Weathering On Submerged Karst Surfaces, Bryan Charles Booth
USF Tampa Graduate Theses and Dissertations
Reports an investigation of the effects of chemical and physical weathering on submerged karst surfaces that pairs laboratory studies with computer modeling studies. The first study attempts to quantify the production of carbonate fines; soluble sediments produced by the incomplete dissolution of karst minerals during chemical weathering. Results show carbonate fine production in relation to dissolutional action; Chalk: 42.8%; Coquina: 2.6%; Dolomite: 3.1%; Gray Limestone: 4.8%; Ocala Limestone: 3.1%; Shell Limestone: 6.1%; Travertine: 8.6%. Due to the use of hydrochloric acid as opposed to carbonic acid these results may not be fully valid for application to natural speleogenic processes. The …
Capturing The Benefits Of Complete Streets, Cutr
Capturing The Benefits Of Complete Streets, Cutr
Research Reports
No abstract provided.
Perceived Vs. Actual Distance To Transit In Santiago, Chile, Diego Hernández, Regina Witter
Perceived Vs. Actual Distance To Transit In Santiago, Chile, Diego Hernández, Regina Witter
Journal of Public Transportation
To plan public transport supply and to increase transit patronage, it is indispensable to be aware of people’s perception of the actual supply, that is, how extensive and accurate people’s knowledge is regarding the concrete features of transport supply, such as the locations of transit stops, timetables, and fare structures. This paper addresses the gap between the perceived and real distances to transit stops. The comparison between the real and perceived supply shows a considerably accurate perception. Nevertheless, a pattern is apparent. Metro supply has a higher overestimation rate than buses, i.e., walking distances are perceived as significantly shorter than …
The Geotraces Intermediate Data Product 2014, The Geotraces Group, Tim M. Conway
The Geotraces Intermediate Data Product 2014, The Geotraces Group, Tim M. Conway
School of Geosciences Faculty and Staff Publications
The GEOTRACES Intermediate Data Product 2014 (IDP2014) is the first publicly available data product of the international GEOTRACES programme, and contains data measured and quality controlled before the end of 2013. It consists of two parts: (1) a compilation of digital data for more than 200 trace elements and isotopes (TEIs) as well as classical hydrographic parameters, and (2) the eGEOTRACES Electronic Atlas providing a strongly inter-linked on-line atlas including more than 300 section plots and 90 animated 3D scenes. The IDP2014 covers the Atlantic, Arctic, and Indian oceans, exhibiting highest data density in the Atlantic. The TEI data in …
En-Route Planning Of Multi-Destination Public-Transport Trips Using Smartphones, Subeh Chowdhury, Nasser Giacaman
En-Route Planning Of Multi-Destination Public-Transport Trips Using Smartphones, Subeh Chowdhury, Nasser Giacaman
Journal of Public Transportation
Public transport travelers require well-integrated, real-time information systems to use a network. The objective of this study was twofold: (1) to develop a model to determine the effect of personalized information provision through smartphones on user ability to plan multi-destination trips, and (2) to understand user perception of riding public transport aided by real-time, multi-destination trip-planning smartphone applications. Auckland Pioneer was developed for multi-destination trip planning and integrates real-time public transport services with search functions for places of interest. A test trial was conducted in Auckland, New Zealand, and the findings show the effects of the application on multi-destination trip …
Who Will Build The 21st Century?: Addressing Critical Demographic Gaps In The Geosciences, Bradley Cramer, Katherine J. Lewandowski, Arthur Goldstein, Pranoti Asher, Jeffrey G. Ryan, David I. Schofield, Rex Buchanan
Who Will Build The 21st Century?: Addressing Critical Demographic Gaps In The Geosciences, Bradley Cramer, Katherine J. Lewandowski, Arthur Goldstein, Pranoti Asher, Jeffrey G. Ryan, David I. Schofield, Rex Buchanan
School of Geosciences Faculty and Staff Publications
The geoscience workforce in the United States may be facing a critical shortage of trained personnel (Gonzalez and Keane, 2011; NRC, 2013; Mosher et al., 2014; Wilson, 2014a). The National Bureau of Labor Statistics projects a 16% increase in geoscience jobs by 2022. If, as projected, more than half of the present geoscience workforce retires by that time (Wilson, 2014a, 2014b), up to 185,000 new geoscientists will be needed. Graduation rates in U.S. geoscience programs (Wilson, 2014a) are slowly increasing but still lack the capacity to produce such numbers by 2022 (Fig. 1A). The result is a projected shortfall of …
Genetic Analyses Determine Connectivity Among Cave And Surface Populations Of The Jamaican Endemic Freshwater Crab Sesarma Fossarum In The Cockpit Country, Manuel Stemmer, Christoph D. Schubart
Genetic Analyses Determine Connectivity Among Cave And Surface Populations Of The Jamaican Endemic Freshwater Crab Sesarma Fossarum In The Cockpit Country, Manuel Stemmer, Christoph D. Schubart
International Journal of Speleology
The Jamaican freshwater crab Sesarma fossarum (Decapoda: Brachyura: Sesarmidae) is endemic to western central Jamaica where it occurs in cave and surface streams of karst regions. In the present study, we examine the population genetic structure of the species, providing evidence for intraspecific differentiation and genetic substructure among twelve sampled populations. Interestingly, crabs from caves appear genetically undistinguishable from representatives of nearby surface waters, despite previously observed and described morphometric differentiation. In contrast, genetic isolation takes place among populations from rivers and caves belonging to different watersheds. In one case, even populations from different tributaries of the same river were …
Gatekeepers For Gifted Social Studies: Case Studies Of Middle School Teachers, Teresa Michelle Bergstrom
Gatekeepers For Gifted Social Studies: Case Studies Of Middle School Teachers, Teresa Michelle Bergstrom
USF Tampa Graduate Theses and Dissertations
This is a multiple case study of the ways middle grades social studies teachers, as curricular-instructional gatekeepers, may make decisions to provide their gifted students with purposeful differentiated instruction. More specifically, this study explores what teachers believe they should do to instruct gifted students, in what ways teachers prepare and adapt curriculum and instruction for gifted students, and how instruction for gifted learners can take place in a middle school social studies classroom. Through semi-structured interviews, classroom observations, and supportive visual evidence, six middle grades (6-8) social studies teachers disclosed in what ways they differentiate their middle grades social studies …
The Common Core State Standards: Its Reported Effects On The Instructional Decision Making Of Middle School Social Studies Teachers, Tracy Tilotta
The Common Core State Standards: Its Reported Effects On The Instructional Decision Making Of Middle School Social Studies Teachers, Tracy Tilotta
USF Tampa Graduate Theses and Dissertations
The Common Core State Standards (CCSS) for social studies are based on critical thinking and literacy skills. These new mandates are expected to lead to curricular and instructional changes within social studies classes. This qualitative study explored how the CCSS might have impacted the curricular and instructional decision-making of middle school social studies teachers and ultimately how the CCSS might affect a teacher’s gatekeeping role. As the CCSS initiative is fairly new, there is little research on the instructional practices being used to support the needs of teachers implementing these new standards in their classrooms as well as the processes, …
A Theoretical And Methodological Framework To Analyze Long Distance Pleasure Travel, Vijayaraghavan Sivaraman
A Theoretical And Methodological Framework To Analyze Long Distance Pleasure Travel, Vijayaraghavan Sivaraman
USF Tampa Graduate Theses and Dissertations
The United States (US) witnessed remarkable growth in annual long distance travel over the past few decades. Over half of the long distance travel in the US is made for pleasure, including visiting friends and relatives (VFR) and leisure activities. This trend could continue with increased use of information and communication technologies for socialization, and enhanced mobility being achieved using fuel-efficient (electric/hybrid) and technology enhanced vehicles. Despite these developments, and recent interest to implement alternate mass transit options to serve this market, not much exists on the measurement, analysis and modeling of long distance pleasure travel in the U.S.
Statewide …
Proceedings Of The International Interdisciplinary Business And Economics Conference: Volume 5, Cihan Cobanoglu, Serdar Ongan
Proceedings Of The International Interdisciplinary Business And Economics Conference: Volume 5, Cihan Cobanoglu, Serdar Ongan
University of South Florida (USF) - M3 Publishing
This is the fifth volume of the International Interdisciplinary Business and Economics Conference Proceedings Series.
ISSN: 2372-5885
Content Abuse And Privacy Concerns In Online Social Networks, Md Imrul Kayes
Content Abuse And Privacy Concerns In Online Social Networks, Md Imrul Kayes
USF Tampa Graduate Theses and Dissertations
Online Social Networks (OSNs) have seen an exponential growth over the last decade, with Facebook having more than 1.49 billion monthly active users and Twitter having 135,000 new users signing up every day as of 2015. Users are sharing 70 million photos per day on the Instagram photo-sharing network. Yahoo Answers question-answering community has more than 1 billion posted answers. The meteoric rise in popularity has made OSNs important social platforms for computer-mediated communications and embedded themselves into society’s daily life, with direct consequences to the offline world and activities. OSNs are built on a foundation of trust, where users …
Research Leads Grad Student, Professor To Cameroon, November 13, 2015, University Of South Florida St. Petersburg Office Of University Advancement.
Research Leads Grad Student, Professor To Cameroon, November 13, 2015, University Of South Florida St. Petersburg Office Of University Advancement.
USF St. Petersburg Campus News and Press Releases
No abstract provided.
Harbor Notes, November 13, 2015, University Of South Florida St. Petersburg. Office Of University Advancement.
Harbor Notes, November 13, 2015, University Of South Florida St. Petersburg. Office Of University Advancement.
Harbor Notes
The November 13, 2015, issue of Harbor Notes.
Passive Acoustic Monitoring Of Beaked Whale Densities In The Gulf Of Mexico, John A. Hildebrand, Simone Baumann-Pickering, Kaitlin E. Frasier, Jennifer S. Trickey, Karlina P. Merkens, Sean M. Wiggins, Mark A. Mcdonald, Lance P. Garrison, Danielle Harris, Tiago A. Marques, Len Thomas
Passive Acoustic Monitoring Of Beaked Whale Densities In The Gulf Of Mexico, John A. Hildebrand, Simone Baumann-Pickering, Kaitlin E. Frasier, Jennifer S. Trickey, Karlina P. Merkens, Sean M. Wiggins, Mark A. Mcdonald, Lance P. Garrison, Danielle Harris, Tiago A. Marques, Len Thomas
C-IMAGE Publications
Beaked whales are deep diving elusive animals, difficult to census with conventional visual surveys. Methods are presented for the density estimation of beaked whales, using passive acoustic monitoring data collected at sites in the Gulf of Mexico (GOM) from the period during and following the Deepwater Horizon oil spill (2010-2013). Beaked whale species detected include: Gervais' (Mesoplodon europaeus), Cuvier's (Ziphius cavirostris), Blainville's (Mesoplodon densirostris) and an unknown species of Mesoplodon sp. (designated as Beaked Whale Gulf - BWG). For Gervais' and Cuvier's beaked whales, we estimated weekly animal density using two methods, one based on the number of echolocation clicks, …
Population Genetics And Epigenetics Of Two Salt Marsh Plant Species Along An Environmental Gradient, Christy M. Foust
Population Genetics And Epigenetics Of Two Salt Marsh Plant Species Along An Environmental Gradient, Christy M. Foust
USF Tampa Graduate Theses and Dissertations
Phenotypic plasticity is the ability of a given genotype to exhibit different phenotypes in response to environmental variables, which can impact population level processes. Plasticity of ecologically-relevant traits is important to an organism’s environmental response; however, the underlying mechanisms of plasticity are largely unknown. Ecological epigenetics may offer mechanisms (e.g. DNA methylation) underlying phenotypic plasticity. Epigenetics can be defined as the underlying molecular mechanisms that allow one genotype to exhibit different phenotypes. Differential DNA methylation is one epigenetic mechanism that has been correlated with a number of ecologically-relevant traits; including, differential herbivory in Viola cazorlensis, spinescence in Ilex aquifolium …
Development Of Truck Route Choice Data Using Truck Gps, Mohammadreza Kamali
Development Of Truck Route Choice Data Using Truck Gps, Mohammadreza Kamali
USF Tampa Graduate Theses and Dissertations
Over the past few decades, the value and weight of freight shipments have grown steadily in both developed and developing countries. A recent statistic in the U.S. reveals that weight of shipments increased from 18,879 to 19,662 million tons between 2007 and 2012 (1). It is also expected that this amount will increase to 28,520 million tons by 2040 (1). It is worth mentioning that 67 percent of shipments are shipped by truck mode in 2012. The monetary value of freight is expected to escalate even faster than weight. This value is estimated to rise from US$ 882 per ton …
A Study On The Integration Of Multivariate Metocean, Ocean Circulation, And Trajectory Modeling Data With Static Geographic Information Systems For Better Marine Resources Management And Protection During Coastal Oil Spill Response – A Case Study And Gap Analysis On Northeastern Gulf Of Mexico Tidal Inlets, Richard Ray Knudsen
USF Tampa Graduate Theses and Dissertations
The Oil Pollution Act of 1990 requires the development of Regional and Area Contingency Plans. For more than 20 years, the State of Florida, under both the Department of Environmental Protection and the Florida Fish and Wildlife Commission, has worked closely with the U.S. Coast Guard and the National Oceanic and Atmospheric Administration to develop these plans for coastal and marine oil spill response. Current plans, developed with local, state and federal stakeholder input, use geographic information systems (GIS) data such as location and extent of sensitive ecological, wildlife, and human-use features (termed Environmental Sensitivity Index data), pre-defined protection priorities, …
The Evaluation Of Tablets To Increase Compliance And Decrease Problem Behaviors In Children Diagnosed With Autism Spectrum Disorder, Hongchau Vo
USF Tampa Graduate Theses and Dissertations
The purpose of this study was to replicate the effects of the study by Neely et al. (2013) and also determine if the tablet served as a reinforcer for three participants with escape maintained behaviors. A multiple baseline with an alternating treatment design was utilized in the first phase in which academic work was completed on either traditional materials or the tablet. The following phases for each participant were dependent on the prior phase, with a final choice phase. All participants showed lower levels of problem behaviors and higher levels of compliance when tablets were introduced contingent upon completing work. …
Is Nubia Plate Rigid? A Geodetic Study Of The Relative Motion Of Different Cratonic Areas Within Africa., Mary Wambui Njoroge
Is Nubia Plate Rigid? A Geodetic Study Of The Relative Motion Of Different Cratonic Areas Within Africa., Mary Wambui Njoroge
USF Tampa Graduate Theses and Dissertations
The Nubia plate is normally considered to be a rigid plate and as such used in the realization of terrestrial reference frame. Gondwana breakup plate reconstruction, the Cameroon volcanic line, seismicity, and the morphology of the Okavango rift zone (ORZ) suggest the presence of internal deformation within the Nubia plate. To test this hypothesis, six different reference frames were developed from the velocity field of three individual regions (West, Central and South), and of different combinations of them (West+Central, South+Central, and Nubia as a whole). The residual velocities with respect to these references frame help us understand the presence of …
Land-Use & Water Quality In The Headwaters Of The Alafia River Watershed, Jaime Alison Swindasz
Land-Use & Water Quality In The Headwaters Of The Alafia River Watershed, Jaime Alison Swindasz
USF Tampa Graduate Theses and Dissertations
The objective of this study is to investigate land-use changes and water quality trends within the headwaters of the Alafia River watershed. Water quality data were obtained from the Environmental Protection Commission of Hillsborough County (EPCHC). Eleven water quality parameters selected for analysis included: temperature (˚C), dissolved oxygen (DO), percent saturation of DO, conductivity, pH, total phosphorous (TP), total nitrogen (TN), ammonium, chlorophyll-a (uncorrected), fecal coliforms, and enterococci. ArcMap® & SWFWMD data were used to map EPCHC sampling stations, calculate contributing watershed size, and determine land-use changes over the course of the sampling period; 17 stations were chosen for this …
Applying Voronoi Tessellations As A Non-Orthogonal Grid Methodology To Inform Public-Private Mix Efforts In Nigeria: An Examination Of The Distribution Of Private Healthcare Providers In Six States And The Covariates Underlying Their Utilization, Trinadh Dontamsetti
USF Tampa Graduate Theses and Dissertations
TB care and prevention is led by the public sector, but many TB symptomatics first seek care in the private sector, highlighting the importance of engaging these facilities. This report examines basic TB epidemiology (such as the gap in case finding that could be addressed in part via private sector activities), health-seeking behaviors (HSB) and diagnostic delays, the size of the private sector, activities of professional societies, and financing. It examines the potential utility of integrating Voronoi tessellations as a GIS-based method for informing and improving Public-Private Mix (PPM) efforts throughout six states in Nigeria. Further, it explores a potential …
Getting Ahead: Socio-Economic Mobility, Perceptions Of Opportunity For Socio-Economic Mobility, And Attitudes Towards Public Assistance In The United States, Alissa Klein
USF Tampa Graduate Theses and Dissertations
In this research I first examine how Americans’ perceptions of what it takes to get ahead are influenced by their income and then compare those perceptions to measured levels of intergenerational socio-economic mobility. By better understanding these relationships I hope to gain insight into the paths people see to upward mobility, how this varies by income, and to what extent this belief is reflected in past mobility measurements. Additionally, I compare perceptions of what it takes to get ahead with responses regarding attitudes towards public assistance. The results of such a comparison could have important implications for public policy.
The …
Saharan Air Layer Dust Loading: Effects On Convective Strength In Tropical Cloud Clusters, Randall J. Hergert
Saharan Air Layer Dust Loading: Effects On Convective Strength In Tropical Cloud Clusters, Randall J. Hergert
USF Tampa Graduate Theses and Dissertations
Numerous factors play a role in the development and maintenance of North Atlantic tropical cyclones as they originate and cross the Main Development Region. These factors include sea-surface temperatures (SSTs), relative humidity, vertical wind shear, etc. One key player in many of these factors is the Saharan Air Layer (SAL) which has been a source for study for nearly five decades.
The interplay between dust loading within the SAL and the development of African Easterly Waves (AEWs) has been repeatedly noted in many of the studies in this field. The cumulative indirect effect of the dust on AEWs however remains …
Hydrothermal Speleogenesis In Carbonates And Metasomatic Silicites Induced By Subvolcanic Intrusions: A Case Study From The Štiavnické Vrchy Mountains, Slovakia, Pavel Bella, Ľudovít Gaál, Vladimír Šucha, Peter Koděra, Rastislav Milovský
Hydrothermal Speleogenesis In Carbonates And Metasomatic Silicites Induced By Subvolcanic Intrusions: A Case Study From The Štiavnické Vrchy Mountains, Slovakia, Pavel Bella, Ľudovít Gaál, Vladimír Šucha, Peter Koděra, Rastislav Milovský
International Journal of Speleology
Several caves of hydrothermal origin in crystalline limestones and metasomatic silicites were investigated in the central zone of the Štiavnica stratovolcano, Štiavnické vrchy Mountains, central Slovakia. Evidence of hydrothermal origin includes irregular spherical cave morphology sculptured by ascending thermal water, occurrence of large calcite crystals and hydrothermal alteration of host rocks, including hydrothermal clays. The early phases of speleogenesis in the crystalline limestone near Sklené Teplice Spa were caused by post-magmatic dissolution linked either to the emplacement of subvolcanic granodiorite intrusions during Late Badenian time or to the spatially associated Late Sarmatian epithermal system. Speleogenesis in metasomatic silicites in the …
The Cost Of Karst Subsidence And Sinkhole Collapse In The United States Compared With Other Natural Hazards, David J. Weary
The Cost Of Karst Subsidence And Sinkhole Collapse In The United States Compared With Other Natural Hazards, David J. Weary
Sinkhole Conference 2015
Rocks with potential for karst formation are found in all 50 states. Damage due to karst subsidence and sinkhole collapse is a natural hazard of national scope. Repair of damage to buildings, highways, and other infrastructure represents a significant national cost. Sparse and incomplete data show that the average cost of karst-related damages in the United States over the last 15 years is estimated to be at least $300,000,000 per year and the actual total is probably much higher. This estimate is lower than the estimated annual costs for other natural hazards; flooding, hurricanes and cyclonic storms, tornadoes, landslides, earthquakes, …
Evaluation Of Cavity Distribution Using Point-Pattern Analysis, Raghav Ramanathan, Yongli Gao, M. Melih Demirkan, Bulent Hatipoglu, Mazen Adib, Michael Rosenmeier, Juan Gutierrez, Hesham El Ganainy
Evaluation Of Cavity Distribution Using Point-Pattern Analysis, Raghav Ramanathan, Yongli Gao, M. Melih Demirkan, Bulent Hatipoglu, Mazen Adib, Michael Rosenmeier, Juan Gutierrez, Hesham El Ganainy
Sinkhole Conference 2015
Presence of solution cavities of different sizes poses major engineering problems in some areas of Abu Dhabi City Municipality (ADM) underlain by soluble rocks such as gypsum, calcarenite, or mudstone. This is especially critical if they are located at a relatively shallow level and are likely to cause settlement or sudden soil collapse. The Gachsaran Formation, which is composed of interlayered mudstone and gypsum, underlies all of the ADM and is known to be vulnerable to cavity formation in the area. The mudstone and gypsum beds within the upper part of the Gachsaran Formation are prone to dissolution. Numerous sinkholes …
Shallow Depressions In The Florida Coastal Plain: Karst And Pseudokarst, Sam B. Upchurch, Thomas M. Scott, Michael C. Alfieri, Thomas L. Dobecki
Shallow Depressions In The Florida Coastal Plain: Karst And Pseudokarst, Sam B. Upchurch, Thomas M. Scott, Michael C. Alfieri, Thomas L. Dobecki
Sinkhole Conference 2015
In Florida, shallow depressions (i.e., depressions <1-2 m in depth) on the land surface are often attributed to sinkhole development. However, it has become evident that there are at least six different mechanisms through which these depressions can form in geologically young cover sediments. These mechanisms include: 1. Cover-subsidence sinkholes over shallow limestone; 2. Suffosion sinkholes over shallow limestone; 3. Cover settlement over shallow shell beds; 4. Large, aeolian deflation areas that resemble “Carolina bays;” 5. Depressions that mimic landforms developed on a shallow paleosol; and 6. Depressions created by pedodiagenesis (i.e., conversion of smectite to kaolinite) in a soil-forming environment. Of these, only the first two appear to represent traditional mechanisms for sinkhole development in eogenetic karst. Cover settlement over shell beds is poorly understood and incorrectly attributed to sinkhole development processes. This type of depression has serious limitations in terms of cover thickness and shell content of the substrate. The last three mechanisms are pseudokarst created by aeolian and soil-forming processes. In this paper we present examples of each and discuss their constraints and evidence.