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Distribution Of Ground-Layer Plant Species In A Fragmented Landscape In The Corozal District, Belize, Central America, Divan Catzim

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In this study, I specifically looked at three major issues regarding 36 target plant species in a fragmented landscape in the Corozal district, Belize: 1) Determine woodlot characteristics that tend to favor the target species. 2) Determine plant characteristics that tend to favor the target species. 3) Determine whether age and size of a woodlot favors the presence of the target species. The study area was divided into three areas and each area had woodlots varying in sizes and ages. 36 plant species were sampled in all woodlots upon which woodlot characteristics and species characteristics were associated with the number …

Investigation Of Interactions Between Rev And Microtubules: Purification Of Wild-Type And Mutant Rev Protein And Optimization Of Microtubule Depolymerization Assays, Miller, Kelly Robbins

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As a logical pharmaceutical target for antiviral drugs, HIV-1 Rev is a regulatory protein essential for viral infection (Hope, 1999). The development of antiviral drugs that target Rev has been hindered by the lack of high-resolution structural information due to the protein's tendency to aggregate in solution. While searching for solution conditions rendering Rev amenable to crystallographic analyses, Watts et al., (2000) discovered a novel in vitro interaction between Rev and microtubules (MTs) whereby addition of equimolar Rev and tubulin forms bilayered rings called Rev-tubulin toroidal complexes (RTTs). RTTs are similar to those seen when MTs are mixed with certain …

Analysis Of Sex Reversal And Tra-2 Nucleotide Variation In Tropical And Temperate Clades Of Caenorhabditis Briggsae, Irene Zelepuhin

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Reproductive isolation results when members of the same species cannot reproduce due to either prezygotic or postzygotic mechanisms, therefore restricting gene flow between populations. A leading model describing reproductive isolation developed by J.B. Haldane (1922) states, "When offspring from two different animal species have one sex that is rare, absent, or sterile, that sex is the heterozygous (XO) or heterogametic (XY) sex". Haldane's rule is illustrated among various animal taxa regardless of which sex is heterogametic. To date, Caenorhabditis mating tests are the only example of Haldane's rule that is caused by sexual transformation and not gender specific lethality or …

The Demise Of Industrial Education For African Americans: | |Revisiting The Industrial Curriculum In Higher Education, William L. Allen

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The purpose of this study was to examine the causes that led African Americans to resist industrial education higher education, which ended industrial training programs in predominantly Black colleges and universities during the 1920s.

Three key factors helped create this reform movement: 1) the death of Booker T. Washington; 2) the improved educational levels of African Americans; and 3) the rise in aspirations of African Americans to expand the benefits of higher education. The loss of the Civil War caused a reorientation of southern and economic conditions.

Newly freed slaves had to be granted citizenship. Southern Whites were more concerned …

Impact Of Land Use On Water Quality In The Indian Lake Watershed: An Integrated Geographic Information Systems Approach, Michael Belke

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Geology and land use and land cover are the most important factors that influence water quality. The purpose of this study is to investigate how these factors operate in a rural watershed. Specifically, this thesis tests the feasibility of a proposed formula to relate how land use affects surface water quality and to infer hydrogeochemical reactions that control water chemistry through hydrogeochemical speciation and mineral stability relationships. Samples were collected from Indian Lake and its watershed in West-Central Ohio. BASINS, produced by the USEPA, was then used to delineate sub-watersheds and find the land use areas of these watersheds. The …

Cross-Cultural Differences Between Korean And American College Students' Perceptions Of Sexual Harassment In Conversational Appropriateness, Yunekyong Chae

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The purpose of this study was to compare the cross-cultural differences of Korean and American college students' perceptions of their experiences with sexual harassment and how it impacts their thoughts and feelings. This study extends the sexual harassment literature to include Koreans' experiences with this important topic. Therefore, this study addresses four research questions: RQ1: Are there cultural differences between Korean and American students' perceptions of sexual harassment in conversational appropriateness? RQ2: Are there gender differences between Korean and American students' perceptions of sexual harassment in conversational appropriateness? RQ3: Will American students report perceptions of sexually harassing conversations more frequently …

Characteristics Of A Foamy Virus-Derived Vector That Allow For Safe Autologous Gene Therapy To Correct Leukocyte Adhesion Deficiency Type 1, Ryan Matthew Mcnichol

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The hematopoeitic stem cell is a prime target for gene therapy in the attempt to correct a number of single gene inherited genetic defects that affect the immune system. In persons affected by leukocyte adhesion deficiency type 1 (LAD-1) the gene for the Beta-2 subunit of the integrin molecule is mutated. This autosomal recessive gene defect yields a phenotype with little or no beta-2 integrin expression on leukocytes. Beta-2 integrin expression is essential for leukocytes to travel from the blood to the tissues to fight infection. Persons with this disease have lowered leukocyte counts in the tissues and as a …

Hsv-1 Infection Of C3h Central Nervous System Cell Lines, Lauren Kay Van Buren

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Herpes Simplex Virus Type 1 (HSV-1) can infect the nervous system, resulting in a disease known as herpes encephalitis (HSE). Herpes encephalitis affects thousands of people each year; many cases are fatal or permanently debilitating. Approximately two thousand known cases occur in the United States each year alone (Neuroland online source). Acyclovir has been the drug of choice used to treat herpes encephalitis. Even after the administration of acyclovir, permanent neurological damage and/or death often results. Thousands of individuals would benefit by the discovery of drugs that are more effective at preventing lasting HSE damage and death. Knowledge concerning HSE …

Fpga Based Hardware Implementation Of Advanced Encryption Standard, Sowrirajan Sampath

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On October, 2, 2000, The National Institute of Standards and Technology (NIST) announced Rijndael as the new Advanced Encryption Standard (AES). The other competing algorithms were Mars, RC6, Serpent and Two-fish. The Predecessor to the AES was Data Encryption Standard (DES) which is considered to be insecure because of its vulnerability to brute force attacks. DES was a standard from 1977 and stayed until the mid 1990's. However, by the mid 1990s, it was clear that the DES's 56-bit key was no longer big enough to prevent attacks mounted on contemporary computers, which were thousands of times more powerful than …

The Effects Of Representational Format And Discourse Principles On The Comprehension And Production Of Temporal Order, Louise J. Rasmussen

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In the present study I examined the role physical representations play in supporting distributed planning and scheduling. Specifically, I investigated the implications of different representational formats for the production of discourse as well as the later comprehension of text relating to temporal order. In the first part of the study, pairs of participants created schedules for constructing a house with the aid of either a numeric, list format, or a graphical, Gantt chart format. Participants completed the task in a non-collocated fashion, without shared visual access. In the second part of the study, after completing their schedule, the same participants …

The Role Of Popular Culture In Language Borrowing Between French And English, Marianne Elizabeth Broadwater

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This thesis proposes that popular culture often derives from the privileged upper classes and that popular culture established by the elite has played an important role in linguistic exchange throughout history between French and English. Focusing on the time periods 1066 AD to 1500 AD and the twentieth and twenty first centuries, it describes the manner of exchange and development of French and English lexicons and analyzes in detail the histories of one French word and one English word. Additionally, the examples given in this thesis illustrate the flow of popular culture from the high-ranking and powerful members of society …

Gpu-Assisted Rendering Of Large Tree-Shaped Data Sets, Pallavi Ramachandra Mangalvedkar

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Due to their complexity, medical data sets can easily comprise of several gigabytes in size. For example, geometric representations of a coronary arterial tree spanning vessels from the large proximal coronary arteries down to the capillary level consist of 6 gigabytes or more of geometry data, depending on the accuracy of the geometric representation. Visualization of such large data sets using the CPU alone can be inefficient and time consuming since they require special out-of-core techniques due to the size of the data set. The usage of the GPU can help render such data sets faster compared to CPU-based implementations …

Library / It Mergers In Ohio's Public Two-Year Colleges: An Exploratory Study, Douglas Kaylor

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Ohio's public two-year community colleges were surveyed to determine how many have merged their libraries and information technology operations. A merger scale developed by Bolin was used as a measure of degree of merger. Results of telephone interviews with librarians at fifteen institutions showed that less than 25% of the subject colleges had some form of merged operation. This figure was similar to reports in the literature. Those Ohio colleges reporting merged operations were all large or very large institutions. This finding did not fit with the literature, which associated merged operations with small institutions. Librarians were also asked about …

The Processing Of Β-Endorphin In Morphine Treated Rats Using Seldi-Tof Mass Spectrometry, Jennifer Y. Edwards

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Endocrine glands secrete peptide hormones that bind to specific receptors, and elicit a response. In the pituitary, prohormone convertases (PC) PC1/3 and PC2 convert inactive prohormones into biologically active peptide hormones. Proopiomelanocortin (POMC) is a precursor molecule that proteolytically cleaves at paired basic residue sites, and produces smaller biologically active peptides, such as adrenocorticotropic hormone (ACTH), α-melanocyte stimulating hormone (α-MSH), and β-endorphin. β-endorphin is an endogenous opioid peptide hormone that plays a vital role in the body's physiological response to stress, fear, and anxiety. Morphine is an exogenous opioid, used for the treatment of moderate to severe pain and competes …

Non-Cooperative Modulation Recognition Via Exploitation Of Cyclic Statistics, Eric C. Like

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This research proposes and evaluates a feature based modulation classification system designed to discriminate between AM, BFSK, OFDM, DS-CDMA, 4-ASK, 8-ASK, BPSK, QPSK, 8-PSK, 16- PSK, 16-QAM, and 64-QAM signals without a priori knowledge of critical signal parameters, including carrier frequency, symbol rate, or phase offset, among others. The classifier is based on the principles of cyclostationarity and leverages cyclic statistics to make its classification decision. The classification process is performed in a hierarchical process in order to exploit the lower variance of lower order cyclic statistics before making use of the higher order cyclic statistics. The initial classification is …

High Spurious-Free Dynamic Range Digital Wideband Receiver For Multiple Signal Detection And Tracking, Vivek Sarathy

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The advent of field-programmable gate array (FPGA) has provided an excellent platform to market prototyping of full receiver-on-chip designs in a short time. The design of multi-tone wideband receiver has always been a challenge because of the difficulty to detect weak signals in the presence of noise in the frequency spectrum and also the presence of general spurs generated by the receiver. In this research, architecture for a FPGA-based 2.56-GSPS digital wideband receiver with multi-tone signal detection and tracking is designed to demonstrate the capability of replacing more expensive analog components into their cheaper digital design counterparts. Novel hardware implementations …

Particle Based Plasma Simulation For An Ion Engine Discharge Chamber, Sudhakar Mahalingam

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Design of the next generation of ion engines can benefit from detailed computer simulations of the plasma in the discharge chamber. In this work a complete particle based approach has been taken to model the discharge chamber plasma.This is the first time that simplifying continuum assumptions on the particle motion have not been made in a discharge chamber model. Because of the long mean free paths of the particles in the discharge chamber continuum models are questionable. The PIC-MCC model developed in this work tracks following particles: neutrals, singly charged ions, doubly charged ions, secondary electrons, and primary electrons. The …

A Hybrid Approach To Retrieving Web Documents And Semantic Web Data, Trivikram Immaneni

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The Semantic Web has been evolving into a property-linked web of RDF data, conceptually divorced from (but physically housed in) the World Wide Web of hyperlinked documents. Data Retrieval techniques are typically used to retrieve data from the Semantic Web while Information Retrieval techniques are used to retrieve documents from the Hypertext Web. Conceptually unifying the two webs enables the exploitation of their interconnections resulting in benefits to both data and document retrieval. Towards this end, we present the Unified Web model that integrates the two webs and formalizes the structure and the semantics of their interconnections. We present a …

Bibliography Tools In The Context Of Www And Latex, Munushree Thummala

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Preparation of academic papers involves not only the creative processes but also the more mechanical tasks such as adjusting the form and style to suit the demands of the publishing journal or conference. Among several packages that help in these rather tedious mechanical tasks, the TEX + LATEX + BibTEX combination is extremely popular. This thesis is about tools that help in the necessary task of citing related work accurately. It focuses on three aspects of this larger bibliography frame work: (i) a survey of existing bibliography formats and tools, (ii) a database view of BibTEX files and functionality that …

Results From The Dc-8 Inlet Characterization Experiment (Dice): Airborne Versus Surface Sampling Of Mineral Dust And Sea Salt Aerosols, Cameron S. Mcnaughton, Antony D. Clarke, Steven G. Howell, Mitchell Pinkerton, Bruce Anderson, Lee Thornhill, Charlie Hudgins, Edward Winstead, Jack E. Dibb, Eric Scheuer, Hal Maring

United States National Aeronautics and Space Administration: Publications

During May and June of 2003 NASA conducted the DC-8 Inlet Characterization Experiment (DICE). The study was undertaken to quantify the performance of three passive, solid diffuser inlets used aboard the DC-8 aircraft to sample optically effective aerosol sizes. Aerosol optical properties measured behind the University of Hawai’i (UH) and the University of New Hampshire (UNH) inlets were within 10% of the ground based measurements whereas the NASA Langley (LaRC) inlet reduced scattering values for supermicrometer dust by approximately 50%. Based on the DICE results the aerodynamic 50% passing efficiency of the inlets and transport plumbing is determined to be …

Sharing A World Of Resources: Incorporating Science Content In Effective Interpretation, Anita Davis, Ruth Paglierani

United States National Aeronautics and Space Administration: Publications

Incorporating science content into the presentation of resource issues to the public is essential for effective interpretation. Science professionals are eager to share their work; interpreters are equally eager to learn about relevant science. Yet, interpreting science and resource issues remains a challenge. Professional development for interpreters is critical to effectively address this challenge. Here, we describe a proven model for integrating science into interpretation: the National Park Service (NPS)–NASA Earth to Sky Institutes. These institutes resulted in the creation of a variety of products using science in dynamic interpretation at many national parks.We highlight the methodology of the Earth …

Simulation Of Richtmyer–Meshkov Instability By Sixth-Order Filter Methods, Helen C. Yee, Bjorn Sjögreen

United States National Aeronautics and Space Administration: Publications

Simulation of a 2-D Richtmyer–Meshkov instability (RMI), including inviscid, viscous and magnetic field effects was conducted comparing recently developed sixthorder filter schemes with various standard shock-capturing methods. The suppression of the inviscid gas dynamics RMI in the presence of a magnetic field was investigated by Samtaney and Wheatley et al. Numerical results illustrated here exhibit behavior similar to the work of Samtaney. Due to the different amounts and different types of numerical dissipation contained in each scheme, the structures and the growth of eddies for the chaotic-like inviscid gas dynamics RMI case are highly grid size and scheme dependent, even …

Interpreter Of Maladies: Analyzing Current Young Adult Indo-Caribbean Literature For Inclusion In Today's High School Canon, Reshma Ramkellawan

HIM 1990-2015

The high school English Language Arts curricula of Central Florida has faced increasing scrutiny during the past decade under often conflicting influences such as a rapidly diversifying student population, activism for and against multicultural curriculum reform, and pressure to streamline curricula and make it conform to state testing standards. Against this social backdrop, the question of how to introduce Inda-Caribbean literature at the secondary level presents unique intellectual and political challenges. On the one hand, first and second generation Inda-Caribbean migrants make up an increasingly significant percentage of Florida's student population. Like other first and second generation Caribbean migrants, Inda-Caribbean …

Space Matters: An Institutional Critique Of Distance Learning Within The University Of Central Florida English Department, Lori Mumpower

Electronic Theses and Dissertations

This dissertation examines distance learning within a local, particular context: UCF's English department. In order to fully examine distance learning in this specific environment, I employ institutional critique as my methodology, a rhetorical and spatial approach that allows me to map distance learning within UCF's English department. Drawing upon the work of David Harvey, I examine the experienced, perceived, and imagined spaces of distance learning in our department. Through an examination of the history of naming UCF, rhetorical analyses of institutional documents that reference technologies, analysis of survey results noting faculty attitudes and perceptions of online learning, and postmodern mapping …

Recreational Technology And Its Impact On The Learning Development Of Children Ages 4-8: A Meta-Analysis For The 21st Century Cl, Joey Templeton

Electronic Theses and Dissertations

This research focuses on technology (specifically video games and interactive software games) and their effects on the cognitive development of children ages 4-8. The research will be conducted as a meta-analysis combining research and theory in order to determine if the educational approach to this age group needs to change/adapt to learners who have been affected by this technology. I will focus upon both the physical and mental aspects of their development and present a comprehensive review of current educational theory and practice. By examining current curriculum goals and cross-referencing them to research conducted in fields other than education (i.e. …

Patchwork Culture: Quilt Tactics And Digitextuality, Michelle P. Barrett Ferrier

Electronic Theses and Dissertations

Embedded in the quilt top, the fabric patches are relays, time pathways to stories and memories of their former owners. Through the quilts, the voices of the past survive. The stories trace a path of connection between oral traditions, storytelling, the invention of meaning, and the preservation of cultural memory. The theory and method described herein use the quilt patchwork metaphor as the basis for a web interface for designing and modeling knowledge-based graphical, narrative, and multimedia data. More specifically, the method comprises a digital storytelling and knowledge management tool that allows one or more users to create, save, store, …

A Study Of Effective Soil Compaction Control Of Granular Soils, Vincent P. Drnevich, Aaron C. Evans, Adam Buser Prochaska

JTRP Technical Reports

Although it is known that impact compaction tests are not appropriate for granular soils, these tests continue to be widely used. Excessive settlements frequently occur in granular soils where specified field compaction is based on Standard Proctor (ASTM D 698; AASHTO T 99) maximum dry unit weights. A laboratory test program evaluated alternative test methods for granular soil compaction control and showed that a Vibrating Hammer method (similar to British Standard BS 1377:1975, Test 14) has great promise for laboratory compaction of these soils. A One-Point Vibrating Hammer test on an oven-dry soil sample is able to provide the maximum …

Pcaob Standards And Related Rules (Including Select Sec-Approved Pcaob Releases And Staff Guidance) As Of December 2006, American Institute Of Certified Public Accountants, Public Company Accounting Oversight Board

AICPA Professional Standards

No abstract provided.

Proposed Revisions To The Aicpa Standards For Performing And Reporting On Peer Reviews; Exposure Draft (American Institute Of Certified Public Accountants), 2007, April 16, American Institute Of Certified Public Accountants. Peer Review Board

Exposure Drafts, Comment Letters, and Statements of Position

The most significant conclusions to come from the work of the above task forces were (1) a recommendation to merge the two peer review programs and (2) a recommendation to reengineer the reporting process to be more understandable and usable in light of the growing mandate that the results of peer reviews be made more widely available. The PRB has issued this exposure draft to propose those recommendations and incorporate other revisions to the Standards and related Interpretations (AICPA Professional Standards, PR Section 100) that are expected to result in a more efficient and effective Program. To ensure Program integrity …

Attestation Engagements That Address Specified Compliance Control Objectives And Related Controls At Entities That Provide Services To Investment Companies, Investment Advisers, Or Other Service Providers; Statement Of Position 07-2, American Institute Of Certified Public Accountants. Auditing Standards Board

Exposure Drafts, Comment Letters, and Statements of Position

No abstract provided.