Digital Commons Network^™

Correlogram Method For Comparing Bio-Sequences, Gandhali P. Samant

Theses and Dissertations

Sequence comparison is one of the most primitive operations used in bio-informatics. It is used as a basis for many other complex manipulations in the field of Computational Molecular Biology. Many methods and algorithms were developed to compare and align sequences effectively. Most of these methods use linear comparison and some standard scoring schemes to calculate the similarity between sequences. We described an alternative approach to compare sequences based on the correlogram method. This method has already been used in the past for comparing images. By using the correlogram method, a sequence is projected on a 3-D space and the …

White Beauty: The Portrayal Of Minorities In Teen Beauty Magazines, Micaela Choo Banks

Theses and Dissertations

This content analysis examines the representations of minorities in the two most popular teen beauty magazines: Seventeen and YM. Nine issues for 2003 constituted the sample frame yielding a total of 620 advertisements containing human models. After setting up a theoretical framework of the new racism and White beauty, this study investigates the portrayals of minority models. Overall, when compared with earlier studies the number of minority models used in mainstream magazine advertising rose and the portrayals of minority models in prominent roles increased. Yet, the subtle nature of the new racism was reinforced in the following findings: Prominent …

Assessment Of Chenopodium Quinoa Willd. Genetic Diversity In The Usda And Cip-Fao Collections Using Ssr?S And Snp?S, Shawn A. Christensen

Theses and Dissertations

Quinoa (Chenopodium quinoa Willd.) is a staple grain for the indigenous people of the Andean region of South America with excellent nutritional qualities, including protein content. The objective of this study is to report on the development of fluorescence-tagged simple sequence repeats (SSRs) and single nucleotide polymorphisms (SNPs) to (1) genetically characterize the inherent diversity of 152 accessions of C. quinoa; (2) determine to what degree the CIP-FAO collection represents the range of genetic diversity in quinoa; and (3) test four hypotheses regarding quinoa?s center of diversity, Highland and Lowland clustering patterns, origin of Lowland varieties, and the …

Global Finish Curvature Matched Machining, Jianguo Wang

Theses and Dissertations

As competition grows among manufacturing companies, greater emphasis has recently been placed on product aesthetics and decreasing the product development time. This is promoting and standardizing widespread use of sculptured surface styling within product design. Therefore, industries are looking for high efficiency machining strategies for sculptured surface machining (SSM). Many researchers have produced various methods in tool path generation for SSM. Five-axis curvature matched machining (CM2) is the most efficient. With the widespread use of 5-axis mill in industries, CM2 is a better solution for improving the machining efficiency for product concept models. CM2 has very good performance for global …

Real-Time Motion Transition By Example, Cameron Quinn Egbert

Theses and Dissertations

Motion transitioning is a common task in real-time applications such as games. While most character motions can be created a priori using motion capture or hand animation, transitions between these motions must be created by an animation system at runtime. Because of this requirement, it is often difficult to create a transition that preserves the feel that the actor or animator has put into the motion. An additional difficulty is that transitions must be created in real-time. This paper provides a method of creating motion transitions that is both computationally feasible for interactive speeds, and preserves the feel of the …

Fremont Storage And Mobility: Changing Forms Through Time, David T. Yoder

Theses and Dissertations

Groups of agriculturalist/hunter-gatherers known as the Fremont inhabited the eastern Great Basin and Colorado Plateau from roughly A.D. 1-A.D. 1350 (Madsen 1989). Fremont groups used differing storage strategies through time and across space. Storage strategies included on-site and off-site storage facilities which were constructed above and/or below-ground. These forms of storage occurred at different frequencies and times throughout the Fremont's 1350 year time span. Researchers (Binford 1980, 1990; Keeley 1988; Soffer 1989; Testart 1982; Wills 1992; Young 1996) using examples from various parts of the world have noted a correlation between the degree of residential mobility and the use of …

Effectiveness Of Story Enactments Versus Art Projects In Facilitating Preschool Children's Story Comprehension, Jennifer Ann Johnson

Theses and Dissertations

The purpose of this study was twofold: (a) to compare preschool children's comprehension of a story after either enacting the story or participating in an art project, and (b) to qualitatively describe the children's interactions during the more interactive story enactment instruction. Twenty children from two Head Start classrooms were told the stories as a class, and then participated in either an art project (AP) or story enactment (SE) in small groups. The children in each classroom each heard three stories followed by the AP condition, and three followed by the SE condition. The children's comprehension of the story was …

Facilitating Communication About Death Between Mothers And Adolescent Sons Using Fictional Children's Literature, Deon G. Leavy

Theses and Dissertations

Most children will experience the death of a loved one in their lifetime and will need to develop healthy grieving patterns. Communication between parents and children is a key ingredient in facilitating this development. Current opinions about bibliotherapy, using a book to assist in healing, suggest that books provide understanding about grief and death and open channels of communication. Although the use of bibliotherapy is gaining popularity, little research exists about its efficacy. Utilizing the book The Bridge to Terabithia, this study evaluated the facilitation of communication about death between 19 dyads of mother and adolescent sons. Their answers and …

Total Syntheses Of (+)-Geldanamycin, (-)-Ragaglitazar, And (+)-Kurasoin A And Phase-Transfer-Catalyzed Asymmetric Alkylation, Erik J. Hicken

Theses and Dissertations

Geldanamycin possesses various biological activities as seen in the NCI 60 cell line panel (13 nM avg., 70 nM SKBr-3 cells). The predominant mode of action providing these unique results arises from the ability of geldanamycin (GA) to bind to the chaperone heat shock protein 90 (Hsp90). Despite its complicated functionality, the first total synthesis of GA was accomplished, which included two new reactions developed specifically to address the stereochemical features. The final step in the synthesis of GA was a demethylation-oxidation sequence to generate the desired para-quinone. This step could only be accomplished with HNO3/AcOH, producing GA in …

Development Of Biological Reference Conditions Of Wadeable Streams In The Major Ecoregions And Subecoregions Of Georgia, Duncan L. Hughes

Theses and Dissertations

One bioassessment tool available to resource managers to indicate NPS impairment of wadeable streams and rivers are multi-metric invertebrate indices. Such indices are assembled from metrics in broad categories that represent different aspects of community structure and function (e.g. richness, composition, tolerance/intolerance, feeding group, and habit). Indices must incorporate suites of metrics that are ecologically relevant, quantifiable, non-redundant, and that best individually discriminate between reference sites and impaired sites. More than 240 wadeable streams in Georgia were sampled during the September thru February index period using RBP protocols during three successive sample seasons (1999-2003). Ecoregional reference (minimally impaired) sites, as …

Murals And The Development Of Merchant Activity At Chichen Itza, De Luna Lucha Aztzin Martinez

Theses and Dissertations

The militaristic interpretations of the art of Chichen Itza, Yucatán, Mexico, fails to sufficiently describe its entire decorative program. Absent from discussions of the art tradition is the apparent focus on merchant activity in the city. The influence and power of merchants strengthened during the transition from the Classic to Postclassic in Mesoamerica. With an increase in demand of foreign goods, new exchange relationships developed between centers in Central Mexico, the Gulf, and Maya region. As a result, several cultural regions participated in a vast economic network that created political alliances and syncretic art styles. Focusing on the mural tradition …

Structure Elucidation Of Bioactive Compounds Isolated From Endophytes Of Alstonia Scholaris And Acmena Graveolens, Nicholas James Hundley

Theses and Dissertations

Alstonia scholaris is an evergreen tree native to Southeast Asia and Australia. It is commonly used as a medicinal plant throughout these regions. In the present study, an endophyte of the genus Xylaria was isolated from a stem of Alstonia scholaris, its mycelia and exudate extracted, and the extract assayed for growth inhibition of HeLa cancer cells in vitro. Several known compounds were isolated and identified based on NMR, infrared, and mass spectral data. The compounds identified are 19,20-epoxycytochalasin C; 19,20epoxycytochalasin D; and xylobovide. Two other compounds, fusaric acid and dehydrofusaric acid, were discovered in an endophyte of the Hypocreales …

The Most Effective Pr/Advertising Techniques In Disseminating An Alcohol Social Norms Campaign, Christine Anna Diblasi

Theses and Dissertations

The purpose of this study was to determine the most effective PR/Advertising techniques to disseminate an Alcohol Social Norms Campaign at college campuses. The techniques used were analyzed for their effectiveness in reaching students and decreasing binge drinking rates. Three New Jersey colleges were studied: Rowan University, Ramapo College of New Jersey and The College of New Jersey.

The researcher collected primary data from the brag books of the three colleges for the fiscal year 2004 Alcohol Social Norms Campaigns, personal interviews with the Project Directors of these campaigns, and focus groups comprised of college students. The research supported the …

Generation Of Biomarkers From Anthrax Spores By Catalysis And Analytical Pyrolysis, Phillip R. Smith

Theses and Dissertations

Anthrax spores, in weaponized form, are dangerous biological warfare agents. Handheld technology for the rapid detection of anthrax is greatly needed to improve national security. Methods to detect anthrax spores are diverse, with most taking at least an hour for positive identification. A viable option for rapid detection is analytical pyrolysis (AP), which produces chemicals containing taxonomical information (biomarkers). AP methods are reviewed and critically analyzed to show that reproducible detection of anthrax spores in a rapid manner (< 5 min) with a handheld device is not currently possible. A promising alternative to AP is the use of a catalyst to produce biomarkers from anthrax spores with improved selectivity and reproducibility. Catalytic materials having promise for this include platinum, nickel, and superacids. Experiments evaluating several of these materials are described. A biomarker mass spectral library was created, based on information available in the scientific literature, to facilitate analysis and identification of the biomarkers produced experimentally. The RAMFAC algorithm was used to deconvolute chromatographic peaks to produce clean mass spectra and match them against entries in the biomarker library. While the library is not complete, its use with the RAMFAC algorithm enabled detection of many important biomarkers in experiments involving catalytic breakdown of anthrax spores. Experimental results from preliminary tests of several catalysts are presented and discussed. Addition of catalysts in the form of platinum nanoclusters and superacids to bacterial spores in a commercial pyrolyzer effected an increase in the amount of biomarkers produced at mild conditions over traditional pyrolysis methods. Electroformed nickel mesh, on the other hand, demonstrated low catalytic activity for the production of biomarkers, likely due to poor contact of the spores with the mesh. Biomarkers similar to those published in the literature were observed, including dipicolinic acid, picolinic acid, propionamide, acetamide, diketopiperazines, fatty acids, furfuryl alcohol, and DNA bases. A statistically designed factorial study was used to determine the importance of temperature, spore loading, and nanocluster loading on the production of three important biomarkers. The relative importance of these variables differs for each of the three important biomarkers, suggesting they are produced by different reaction mechanisms.

Combating The Banality Of Evil: Portrayals Of The Literary Female Villain In Gã¼Nter Grass's Danziger Trilogie And Novella, Im Krebsgang., Joseph Ephraim Baumgarten

Theses and Dissertations

In Günter Grass's Danzig Trilogy and novella, Im Krebsgang, an antagonistic female type makes a repeated appearance. She appears in the guise of Susi Kater and Luzie Rennwand in Die Blechtrommel, and as Tulla Pokriefke in the other works, Katz und Maus, Hundejahre, and Im Krebsgang. This antagonistic female type is not like other women in these works. A review of Le Deuxième Sexe by feminist Simone de Beauvoir reveals several crucial components contributing to woman's position in society. Most essentially, a woman's natural attributes and (dis)abilities and the conventions of society have enforced her historical submission to man. This …

A Spatial Decision Support System Utilizing Data From The Gap Analysis Program And A Bayesian Belief Network, Jeremiah Percy Dumas

Theses and Dissertations

With increased degradation of natural resources due to land use decisions and the subsequent loss of biodiversity across large spatial scales, there is a need for a Spatial Decision Support System (SDSS) which showcases the impacts of developments on terrestrial and aquatic ecosystems. The Gap Analysis Program (GAP) and a Bayesian Belief Network (BBN) were used to assess the impacts of an impoundment in the Bienville National Forest, Smith County, Mississippi on landcovers, threatened and endangered species, species richness and fish populations. A test impoundment site was chosen on Ichusa Creek and using GAP data, landcovers, species and species richness …

A Study Of Student Use Of An Online Message Board In An Introductory Physics Class, Wenjuan Song

Theses and Dissertations

With the rapid development of the Internet, increasingly universities and colleges transfer some of their teaching assignments online. Online learning plays an important role in assisting or sometimes substituting for the traditional face-toace learning. An online message board is one of several online communication tools which are used to assist online learning. We have conducted a study on the role of the online message board in teaching one of these courses, an introductory course in calculus-based physics. The study analyzed students? use of the message board and investigated whether use is correlated with performance in the class. Results suggest that …

Exploration Of Lip Shape Measures And Their Association With Tongue Contact Patterns, Jessica Lynn Wagner

Theses and Dissertations

A variety of tools and techniques have been developed to measure the movements of the vocal tract, specifically of the tongue and lips. In recent years, computer technology has allowed for extensive exploration of these precise movements and for the development of speech recognition systems. However, there has been relatively little work on the combination of visible facial movements and internal articulatory activity. In this study, two different technologies were used to explore the internal and external movements of speech production in eight speakers: palatometry quantified tongue contact patterns and computerized video image analysis was used to derive lip shape …

Hyperventilation And Its Effects On The Neurosurgical Patient, Melissa L. Laspi

Theses and Dissertations

Neurosurgical procedures continue to be a challenging and intricate part of an anesthesia provider’s career. The anesthesia provider can control the physiological effects of improper auto-regulation of the brain that can occur with abnormal neurological pathology. The control of hyperventilation is one way that the anesthesia provider can manipulate cerebral physiology. This paper addresses the physiology of impaired brain autoregulation and the role in which carbon dioxide affects that physiology. Simply stated, carbon dioxide (C02) is the number one physiological factor that controls cerebral blood flow; increasing C02 dilates cerebral vessels thus increasing flow while decreasing C02 constricts cerebral vessels …

Endovascular Repair Of Abdominal Aortic Aneurysm: Considerations In Anesthesia Nursing, Tammy Hoganson

Theses and Dissertations

The nature of the study involves endovascular repair of aortic aneurysms and anesthesia considerations. Endovascular repair of abdominal aortic aneurysm is a new, noninvasive procedure to repair abdominal aortic aneurysm (AAA). Abdominal aortic aneurysm was once considered high risk with patients spending one to two weeks in the hospital following surgery. This new, less invasive procedure allows patients to go home in as little as two days. Along with new technology brings new challenges for the nurse anesthetist. The researcher will review current literature regarding AAA repair and involve the anesthesia care. The paper will review preoperative, intraopeative, and postoperative …

Parish Nurse Perspectives On Addressing Clients' Spiritual Wellness And Needs, Rebecca E. Elbert

Theses and Dissertations

The purpose of this qualitative grounded theory study is to identify processes that parish nurses use to assess spiritual needs, to develop interventions that address these needs, and to evaluate meeting these needs. Parish nurses are one group of specialty nurses who outwardly emphasize the importance of holistic care and who attempt to incorporate the spiritual aspect of holistic care into each client contact. While all nurses learn about spiritual care many nurses are uncomfortable and inexperienced in addressing clients’ spirituality. No other research has been done like this with this population. Grounded theory design and methodology including constant comparative …

In-Group/Out-Group Dynamics Of Native American Mascot Endorsement, John Gonzalez

Theses and Dissertations

The use of Native American names and mascots by professional and college sports teams has become a controversial issue. However, very litde research has investigated attitudes towards Native Americans, regarding relationships between team names and mascots on prejudice and discrimination. This study proposed that the multiple social categories created by manipulating the endorsement/opposition of Native mascots by Native and White college students at a university with a Native mascot, would allow for the identification of possible prejudice and discrimination based on race and the mascot issue. It was hypothesized that the manipulation of Native American Mascot Endorsement (NAME) in Native …

Where The Green Money Grows: Assessing The Prospects Of Ecotourism In Gabon, Daniel Chand

Theses and Dissertations

This is an examination of the challenges to ecotourism development in the West-Central African nation of Gabon. This study uses secondary analysis of past literature and utilizes primary, qualitative research in the form of surveys of experts on the subjects of ecotourism, sustainable development, and the Congo Basin.

Reaction Of Tardigrades (Hypsibius) To Physical And Chemical Extremes, Limor Raz

Theses and Dissertations

The process of cryptobiosis is characterized by a complete state of body water dehydration and undetectable metabolic activity, which allows tardigrades {Hypsibius) to escape environmental stress when conditions become unfavorable. In our research, Hypsibius was tested in a laboratory under pH levels of 3 to 10 and a salinity concentration gradient. In the pH experiment, we placed tardigrades in petri dishes with agar solution in an experimental pH and measured the average distance traveled. We expected them to respond favorably to a neutral pH of 7 which is common in most living organisms by showing increased movement. In the salinity …

Facing The Caree/Family Dichotomy: Traditional College Women's Perspectives, Lisa Michelle Leavitt

Theses and Dissertations

This qualitative study explored the experience of 32 traditional college freshmen women as they sought to choose a career with the idea of balancing career and family in the future. A traditional woman was defined as a woman whose central value system and cultural mores emphasize homemaking and childrearing as their primary role. Guided interviews were conducted to obtain in-depth descriptions of participants' experience. The interviews were transcribed and interpreted using a synthesis of qualitative methods based on Kvale's method. The six themes were as follows: 1. The concept of balancing careers and family life is not being discussed or …

Pretend Play At Home: Creating An Educationally Enriched Environment For Emergent Literacy Among Preschool-Aged Children, Kelly King Anderson

Theses and Dissertations

This thesis will illustrate how pretend play can be used in the home for educational purposes. The major emphasis of the work will be emergent literacy, however, application principles can be applied in all subject areas. Parents who desire to expand their child's literacy skills while exposing the child to an arts enriched home environment need ideas and tools developed with supportive research to strengthen and focus their efforts. These tools will greatly expand parental resources by offering several principles as a guide for adapting existing classroom materials for home use. The following Seven Components form the core foundation for …

Land Grabbers, Toadstool Worshippers, And The Sagebrush Rebellion In Utah, 1979-1981, Jedediah S. Rogers

Theses and Dissertations

In 1979, a handful of Nevada state officials sparked a movement to transfer the large unappropriated domain to the western states. For two years what became known as the Sagebrush Rebellion swept across the American West like brushfire, engaging westerners of all stripes in a heated dispute over the question of the public lands. In Utah, as elsewhere in the West, public officials, rural ranchers, miners, developers, academics, environmentalists, and concerned citizens joined the debate and staked sides. This episode underscored western relationships between people and nature and featured contests over competing ideologies in the West. But it probably did …

Angiotensin Ii-Mediated Regulation Of The Human Angiotensin Ii Type 1 Receptor Gene, Xylophone Vijai Aasee Victor

Theses and Dissertations

The physiological responses of angiotensin II (Ang II) are mediated across the cell membrane through the angiotensin II type 1 receptor (AT1R), a heptahelical membrane protein coupled to trimeric G-proteins on the cytosolic side. AT1R on binding its ligand, Ang II, leads to downregulation of cell-surface receptor and also its mRNA. We have investigated whether the 3'- and 5'-untranslated regions of the human AT1R mRNA mediate the degradation of hAT1R mRNA by post-transcriptional mechanisms in human adrenocortical carcinoma cell line (H295R cells). Protein kinase C (PKC) activator, phorbol-12-myristate-13-acetate (PMA), showed that the downregulation of hAT1R mRNA is mediated by the …

Visualizing And Interacting With Externally Coupled Engineering Analysis Results, Paul Frederick Nelson

Theses and Dissertations

Visualizing and interacting with engineering analysis results can provide valuable insights into a system's performance and aid in engineering decision-making. Currently, the majority of analysis codes are developed as isolated solutions focusing only on the most prominent physical influence to a system, such as thermal, structural, fluid, etc. Frequently, more than one of these physical influences combined to force engineers to evaluate complex, coupled systems. Coupled analysis codes are becoming more common place tools for engineers demanding high fidelity simulations of complex systems. External code coupling solutions are emerging to permit generic coupling of separate, world class CAE solvers thus …

Development Of A Model For The Kinetics And Mechanism Of Nitrogenase, Phillip E. Wilson

Theses and Dissertations

Nitrogenase has a central role in the global nitrogen cycle as the enzyme that catalyzes the reduction of atmospheric N2 to NH3. Fixed nitrogen is generally limiting in the environment and in agriculture, so nitrogenase has received much attention as an alternative to nitrogen fertilizers. Characterizing the mechanism of nitrogenase is the goal of this work. The molybdenum nitrogenase enzyme system is comprised of the MoFe protein and the Fe protein. Interactions between these proteins and nucleotides are crucial to catalysis. An important approach to characterize these interactions is to correlate the kinetics of nitrogenase catalysis to a mechanism based …