Digital Commons Network^™

An Afternoon In Mosquito Lagoon, Suzie Caffery, Diahn Escue

CEELAB Children's Books

Oysters in Mosquito Lagoon serve many important functions. They filter the water, are consumed by a variety of predators (including humans) and create habitat for over 100 species. Sadly, Mosquito Lagoon's oysters are in trouble. This story describes some of the amazing animals that live in or around Mosquito Lagoon's oyster reefs. Information on how everyone can help protect Mosquito Lagoon oysters is also explained.

Factors Affecting Breeding Territory Size And Placement Of The Florida Grasshoper Sparrow (Ammodramus Savannarum Floridanus), Jill Aldredge

Electronic Theses and Dissertations

For most taxa, maximizing fitness depends on maintaining access to adequate resources. Territories provide exclusive use of resources for an individual or a family group, thus facilitating successful reproduction. The economic defensibility of a territory depends on the quality, abundance, and distribution of its resources as well as the amount of competition that an individual must endure to maintain exclusive access. The benefits of defense must outweigh the costs for territoriality to be profitable. Territory owners may benefit from territories with high quality resources, but they also may incur greater costs defending these resources from competitors. In contrast, territories with …

Post Treatment Alternatives For Stabilizing Desalinated Water, Susaye Douglas

Electronic Theses and Dissertations

The use of brackish water and seawater desalination for augmenting potable water supplies has focused primarily on pre-treatment, process optimization, energy efficiency, and concentrate management. Much less has been documented regarding the impact of post-treatment requirements with respect to distribution system. The goals of this study were to review current literature on post-treatment of permeate water, use survey questionnaires to gather information on post-treatment water quality characteristics, gather operation information, review general capital and maintenance cost, and identify appropriate "lessons learned" with regards to post-treatment from water purveyors participating in the Project. A workshop was organized where experts from across …

Design Of Sea Water Heat Exchanger For Miniature Vapor Compression Cycle, James Hughes

Electronic Theses and Dissertations

Recent advances in the development of miniature vapor compression cycle components have created unique opportunities for heating and cooling applications, specifically to human physiological requirements that arise in extreme environments. Diving in very cold water between 1.7 and 5°C requires active heating because passive thermal insulation has proven inadequate for long durations. To maintain diver mobility and cognitive performance, it is desirable to provide 250 to 300 W of heat from an untethered power source. The use of a miniature vapor compression cycle reduces the amount of power (batteries or fuel cell) that the diver must carry by 2.5 times …

An Investigation Into Hotel Employees' Perception Of Green Practices, Sun-Hwa Kim

Electronic Theses and Dissertations

This study examined how employees of the hotel industry perceived green practices. Data was collected from 220 employees working in eight green certified hotels in Orlando. Research results revealed that performance levels of green practices implemented by hotels were lower than the importance levels of those same green practices as perceived by hotel employees. The results of the study illustrated that (1) the employees' perception regarding green practices was not different than one of hoteliers in terms of importance and performance, and (2) employees weighted the green practices that were beneficial to them as more important than green practices that …

Roses Are Red, Violets Are Bluehow Poetry In Science Can Help Students Learn Something New, Kimberly Casselman

Electronic Theses and Dissertations

This study was an attempt to examine how poetry integrated with science could assist eighth graders in the memorization of key science vocabulary words. Furthermore, it would investigate if student attitude, interest, and motivation would improve with the use of the poetry. Instruction was adjusted to implement poetry into astronomy lessons. Memorization activities such as poems, chanting, and repetition were used to help students remember the vocabulary and the definitions. Pre/post tests were used to interpret if the poetry did assist in the memorization of the astronomy vocabulary. Science interest surveys and science attitude surveys were used to interpret if …

Droplet Flows In Microchannels Using Lattice Boltzmann Method, Amit Gupta

Electronic Theses and Dissertations

Microelectromechanical systems (MEMS) have widespread applications in medical, electronical and mechanical devices. These devices are characterized by the smallest dimension which is at least one micrometer and utmost one millimeter. Rapid progress in the manufacture and utilization of these microdevices has been achieved in the last decade. Current manufacturing techniques of such devices and channels include surface silicon micromachining; bulk silicon micromachining; lithography; electrodeposition and plastic molding; and electrodischarge machining (EDM). In recent years, electrostatic, magnetic, electromagnetic and thermal actuators, valves, gears and diaphragms of dimensions of hundred microns or less have been fabricated successfully. Sensors have been manufactured that …

Learning Semantic Features For Visual Recognition, Jingen Liu

Electronic Theses and Dissertations

Visual recognition (e.g., object, scene and action recognition) is an active area of research in computer vision due to its increasing number of real-world applications such as video (image) indexing and search, intelligent surveillance, human-machine interaction, robot navigation, etc. Effective modeling of the objects, scenes and actions is critical for visual recognition. Recently, bag of visual words (BoVW) representation, in which the image patches or video cuboids are quantized into visual words (i.e., mid-level features) based on their appearance similarity using clustering, has been widely and successfully explored. The advantages of this representation are: no explicit detection of objects or …

New Computational Approaches For Multiple Rna Alignment And Rna Search, Daniel Deblasio

Electronic Theses and Dissertations

In this thesis we explore the the theory and history behind RNA alignment. Normal sequence alignments as studied by computer scientists can be completed in O(n2) time in the naive case. The process involves taking two input sequences and finding the list of edits that can transform one sequence into the other. This process is applied to biology in many forms, such as the creation of multiple alignments and the search of genomic sequences. When you take into account the RNA sequence structure the problem becomes even harder. Multiple RNA structure alignment is particularly challenging because covarying mutations make sequence …

Alliances In Graphs: Parameterized Algorithms And On Partitioning Series-Parallel Graphs, Rosa Enciso

Electronic Theses and Dissertations

Alliances are used to denote agreements between members of a group with similar interests. Alliances can occur between nations, biological sequences, business cartels, and other entities. The notion of alliances in graphs was first introduced by Kristiansen, Hedetniemi, and Hedetniemi in . A defensive alliance in a graph G = (V, E) is a non empty set S ⊆ V where, for all x ∈ S, |N[x] ∩ S| ≥ |N[x] − S|. Consequently, every vertex that is a member of a defensive alliance has at least as many vertices defending it as there are vertices attacking it. Alliances can …

Delay Modeling And Long-Range Predictive Control Of Czochralski Growth Process, Dhaval Shah

Electronic Theses and Dissertations

This work presents the Czochralski growth dynamics as time-varying delay based model, applied to the growth of La3Ga5.5Ta0.5O14 (LGT) piezoelectric crystals. The growth of high-quality large-diameter oxides by Czochralski technique requires the theoretical understanding and optimization of all relevant process parameters, growth conditions, and melts chemistry. Presently, proportional-integral- derivative (PID) type controllers are widely accepted for constant-diameter crystal growth by Czochralski. Such control systems, however, do not account for aspects such as the transportation delay of the heat from crucible wall to the crystal solidification front, heat radiated from the crucible wall above the melt surface, and varying melt level. …

Flow Visualization In Microfluidic Expansion And Mixing, Ehsan Yakhshi-Tafti

Electronic Theses and Dissertations

Micro particle image velocimetry (microPIV) is a non-intrusive tool for visualizing flow in micron-scale conduits. Using this investigative instrument, two experimental studies were performed to understand flow behaviors in microfluidic channels - a sudden expansion step flow and laminar velocity profile variation in diffusion driven mixing. First, flow in a backward facing step feature (1:5 expansion ratio) in a microchannel was taken as the subject of microPIV flow visualization. The onset and development of a recirculation flow was studied as a function of flow rate. This flow pattern was further used to investigate two major parameters affecting microPIV measurements; the …

The Integrated User Experience Evaluation Model: A Systematic Approach To Integrating User Experience Data Sources, Roberto Champney

Electronic Theses and Dissertations

Evaluating the user experience (UX) associated with product interaction is a challenge for current human-systems developers. This is largely due to a lack of theoretical guidance for directing how best to assess the UX and a paucity of tools to support such evaluation. This dissertation provided a framework and tools for guiding and supporting evaluation of the user experience. This doctoral research involved reviewing the literature on UX, using this knowledge to build first build a theoretical model of the UX construct and later develop a theoretical model to for the evaluation of UX in order to aid evaluators – …

Information-Seeking Strategies Of Doctoral Students And Implications For Design Of The Graduate School Web Space, Debra Winter

Electronic Theses and Dissertations

This dissertation looks at the information-seeking practices of doctoral students in the context of their search for a doctoral program and considers the implications for design of the graduate school Web space. Of particular interest is the description of patterns of Web use and the practices related to students' preparation for interactions with technology, the nature of the interactions, and the thinking that occurs. An exploratory study that brings together hypertext theory, contextual, holistic approaches, and information behavior, this research includes a focus group of current undergraduate and graduate students to gather fresh details about information-seeking for a graduate program …

Holiday Shores Stormwater Retrofitting Project, Stormwater Academy

BMP Trains Research and Publications

No abstract provided.

The Biochemical Reactions Of Dry State Dna, April Marrone

Electronic Theses and Dissertations

The biochemistry of dry state DNA is of interest to the fields of forensics, ancient DNA, and DNA storage. The exact chemical nature of the degradation of the DNA molecule in the dry state has not been studied prior. If determined what chemical changes the DNA molecule undergoes, to what degree and in what time frame then protocols can be implemented to bypass the impact of this damage or to repair it when necessary. It is suspected that similar reactions occur to the dry state DNA molecule as does to the hydrated molecule. It cannot be assumed, however that these …

Water And The Mountains: Maya Water Mangement At Caracol, Belize, James Crandall

Electronic Theses and Dissertations

Water management techniques in the Southern Maya Lowlands are both regionally diverse and site specific. This thesis examines the water management strategies of the Classic Period Maya at the site of Caracol, Belize. While it is likely that elites at Caracol controlled the redistribution of resources, i.e. craft and agricultural products, it is probable that the production of agricultural resources and the maintenance of water resource acquisition took place on a more local level. In order to test this hypothesis, a sample of five reservoirs were examined through original research -- and situated in conjunction with past settlement studies -- …

A Biocultural Analysis Of Nubian Fetal Pot Burials From Askut, Sudan, Lauren Britton

Electronic Theses and Dissertations

The skeletal remains in this study were excavated from the Nubian archaeological island fortress site of Askut (ca. 1850 BC - 1070 BC, New Kingdom/Third Intermediate period), located at the 2nd Cataract of the Nile river in Sudan. These remains were recovered as part of an archaeological expedition from 1962-1964, which was an effort to learn as much as possible about this site before the building of the High Dam in Aswan. Seven fetal skeletons (dated ca. 1260-770 BC) were examined for their biocultural significance. Biological analysis of these individuals indicates a range in developmental age from 36 to 40 …

Habitat Use By The Southeastern Beach Mouse (Peromyscus Polionotus Niveiventris) At Cape Canaveral Air Force Station, Florida, Kathryn Simmons

Electronic Theses and Dissertations

Successful recovery of the federally threatened southeastern beach mouse (Peromyscus polionotus niveiventris) depends in part on an understanding of their habitat requirements. I studied habitat use by beach mice at Cape Canaveral Air Force Station, Florida from March 2005 until March 2006. I livetrapped six grids, three on coastal dunes and three within scrub located inland from the coast. On each grid and trap station, I quantified the extent of bare ground, woody vegetation, non-woody vegetation, height of vegetation, and percentage of coarse sand in the surface soil. I assessed trap success relative to these habitat variables using linear and …

Application Of Alkylsilane Self-Assembled Monolayers For Cell Patterning And Development Of Biolocial Microelectromechanical Systems, Kerry Wilson

Electronic Theses and Dissertations

Advances in microfabrication and surface chemistry techniques have provided a new paradigm for the creation of in vitro systems for studying problems in biology and medicine in ways that were previously not practical. The ability to create devices with micro- to nano-scale dimensions provides the opportunity to non-invasively interrogate and monitor biological cells and tissue in large arrays and in a high-throughput manner. These systems hold the potential to, in time, revolutionize the way problems in biology and medicine are studied in the form of point-of-care devices, lab-on-chip devices, and biological microelectromechanical systems (BioMEMS). With new in vitro models, it …

A New Home For An Old Friend : Responsible Aquarium Stewardship, Suzie Caffery, Diahn Escue

CEELAB Children's Books

Moving to a new home is always hard. It's even rougher to figure out what to do with the pets and plants in your fish tank if it is not possible to take them with you. In this book we describe the devastating results to the environment when a seaweed and a fish species were released by humans into coastal waters.

Springer Collection, Ucf Libraries

Technology Fee Funded Projects

Springer is a major publisher of academic and professional books and series. The e books are suitable for research, study, and course projects, and can be assigned as textbooks. With the purchase of this Collection, UCF will gain perpetual rights and online access to Springer books published between 2005 and 2009 comprised of over 16,000 volumes. All UCF affiliated users will have access from 1997 to 2009 to all of Springer’s major book series, including the well known Lecture Notes Series.

The agreement between UCF and Springer will allow for any fair use of the content for educational purposes, including …

Psychological Sense Of Community And Retention: Rethinking The First-Year Experience Of Students In Stem, Melissa Dagley Falls

Electronic Theses and Dissertations

This investigation looks at the relationship between a STEM learning community's co-curricular activities and students' perceived sense of community (SOC)to determine which activities most influence SOC and, in turn, retention. This investigation shows that SOC can be impacted by a multitude of factors found within the college environment. The most influential of these factors are open acceptance, student academic support services, and residential experiences. Most importantly there were significant differences for African American students participating in the STEM learning community on the measures of SOC, retention, and being on-track in mathematics. Additional data suggested higher levels of being on-track in …

Design, Synthesis, And Characterization Of Novel Hydrophilic Fluorene-Based Derivatives For Bioimaging Applications, Dao Nguyen

Electronic Theses and Dissertations

In this work, hydrophilic fluorene-based derivatives that contain ethylene oxide substituents, have been synthesized and characterized for potential use as new fluorophores for bioimaging applications and for fluorescence sensing of heavy metals. Symmetrical and unsymmetrical fluorene derivatives based on structural types of acceptor-pi-acceptor, acceptor-pi-donor, and donor-pi-donor were characterized by TGA, UV-vis absorption, fluorescence emission, lifetime, anisotropy, and two-photon absorption (2PA) cross section. They were found to possess high thermal stability, high photostability, high fluorescence quantum yields, and generally large two-photon absorption cross sections, making them quite suitable for new probes in single-photon absorption and two-photon absorption fluorescence microscopy imaging. Novel …

Modeling Microbiological And Chemical Processes In Municipal Solid Waste Bioreactor: Development And Applications Of A Three-Pha, Nitin Gawande

Electronic Theses and Dissertations

The numerical computer models that simulate municipal solid waste (MSW) bioreactor landfills have mainly two components--a biodegradation process module and a multi-phase flow module. The biodegradation model describes the chemical and microbiological processes of solid waste biodegradation. The models available to date include predefined solid waste biodegradation reactions and participating species. In a bioreactor landfill several processes, such as anaerobic and aerobic biodegradation, nitrogen and sulfate cycling, precipitation and dissolution of metals, and adsorption and gasification of various anthropogenic organic compounds, occur simultaneously. These processes may involve reactions of several species and the available biochemical models for solid waste biodegradation …

Cultural Competence In Long Term Care : A Qualitative Phenomenological Study Of Nursing Home Administrators' Knowledge And Perception Of Cultural Competence, Sashai A. Green

HIM 1990-2015

This qualitative phenomenological study examined central Florida's nursing home administrators' knowledge and perception of cultural competence and how they perceive that their knowledge and perceptions impact residents, families, and healthcare. The theoretical framework for this study was explained through Campinha-Bacote's interdisciplinary model of The Process of Cultural Competence in the Delivery of Healthcare Services. The theoretical framework was used to guide research questions, and individual interview questions to obtain nursing home administrator's knowledge and perception of cultural competence. The study explored the level of cultural competence reported by nursing home administrators, their individual perception of cultural competence, their degree of …

University Of Central Florida Ir 2008-2009 Fact Book, University Of Central Florida

Historical Fact Book and Enrollment

Historical fact book and enrollment data for the University of Central Florida.

Carbon And Nitrogen Stable Isotope Turnover Rates And Diet-Tissue Discrimination In Florida Manatees (Trichechus Manatus Latirostris), Christy D. Alves-Stanley, Graham A. J. Worthy

Faculty Bibliography 2000s

The Florida manatee (Trichechus manatus latirostris) is a herbivorous marine mammal that occupies freshwater, estuarine and marine habitats. Despite being considered endangered, relatively little is known about its feeding ecology. The present study expands on previous work on manatee feeding ecology by providing critical baseline parameters for accurate isotopic data interpretation. Stable carbon and nitrogen isotope ratios were examined over a period of more than 1 year in the epidermis of rescued Florida manatees that were transitioning from a diet of aquatic forage to terrestrial forage (lettuce). The mean half-life for (13)C turnover was 53 and 59 days for skin …

The Impact Of Advanced Placement (Ap) Participation And Success On School-Wide Student Achievement, David Christiansen

Electronic Theses and Dissertations

The purpose of this study was to investigate two research questions concerning: (a) the relationship between the percentage of students within a high school who participated in the Advanced Placement program and the school-wide student achievement of a high school and (b) the relationship between the percentage of students within a high school who successfully performed in the Advanced Placement program and the school-wide student achievement of the high school. It was determined in this study that there was a statistically significant relationship between Advanced Placement (AP) student participation and school-wide student achievement and there was a statistically significant relationship …

Finders Keepers: A Comparative Study Investigating Teaching The Florida Research Process Finds Model Through Three Different Approaches At The Elementary School Level, Karen Serrell

Electronic Theses and Dissertations

The children's taunt "Finders Keepers, Losers Weepers" gives new credence to the information search process at the elementary school level. Children keep what they find, claim it as their own, and accept information without discernment or critique. This study examines the effectiveness of teaching information literacy skills through three different approaches. The first curricular approach uses direct instruction to teach children how to do research using the Florida Research Process FINDS Model. The second approach pairs the FINDS Model with a unit of study that is related to classroom curriculum. The third approach examines the FINDS Model in conjunction with …