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Articles 4321 - 4350 of 8975
Full-Text Articles in Entire DC Network
Mouth, Dorothy Lynn Knight
Mouth, Dorothy Lynn Knight
Electronic Theses and Dissertations
Poems written between August 2010 and April 2013.
Evaluating Preference-Seeking And Aversive Qualities Of Salvia Divinorumand Mitragyna Speciosa, Melissa Jane Loria
Evaluating Preference-Seeking And Aversive Qualities Of Salvia Divinorumand Mitragyna Speciosa, Melissa Jane Loria
Electronic Theses and Dissertations
Use of botanicals for self-diagnosed conditions or recreational purposes is increasing. Many readily available botanicals are under-researched and little is known about potential liabilities. This study sought to utilize Conditioned Place Preference (CPP) to quantify rewarding or aversive properties of botanicals and their constituents in rats. This paradigm is based on the notion that animals prefer distinct environments previously paired with rewarding drugs. Our approach to broadly characterize a botanical and its many constituents entails dose response functions of a plant extract, its fractions, and its primary constituent. As a proof of concept, we chose two popular botanicals, one expected …
Phylogeography Of The Malagasy Ant Species Otontomachus Coquereli, Jason Jackson
Phylogeography Of The Malagasy Ant Species Otontomachus Coquereli, Jason Jackson
Electronic Theses and Dissertations
Madagascar is an extremely diverse and geographically complex area boasting levels of endemism that blatantly raise questions about their origins. There is evidence that these endemics arose via insitu diversification during Madagascar's ~88 million year isolation, even though it was essentially in the middle of Gondwana with ample opportunity to acquire inhabitants. Madagascar's high levels of diversity and endemism make it an ideal location to study speciation, especially considering the evidence that such high levels speciation occurred in Madagascar itself. Several hypotheses have been formulated to relate the complex geography to genetic divergence, and thereby speciation. I explore three hypotheses …
Collaborative Memory For Serial Order, Elizabeth Lauren Foreman
Collaborative Memory For Serial Order, Elizabeth Lauren Foreman
Electronic Theses and Dissertations
Although the encoding, storage, and retrieval of information between groups has been examined in both recall and recognition memory; surprisingly, there is no existing data regarding collaborative memory outcomes using a reconstruction task. In an attempt to fill this gap in the literature, participants assigned to one of four retrieval conditions were asked to study the order of unrelated word-lists in preparation for a memory test. Some reconstructed the lists by alternating turns with their group members (turn-taking). Others were forced to reconstruct the lists from the first item-position to the last item-position in addition to taking turns with group …
Child Murder: A Re-Examination Of Durkheim's Theory Of Homicide, Melissa Tetzlaff-Bemiller
Child Murder: A Re-Examination Of Durkheim's Theory Of Homicide, Melissa Tetzlaff-Bemiller
Electronic Theses and Dissertations
The current study examines county-level characteristics and their impact on child homicide. This work uses Durkheimian theory and tests the concept of solidarity by using variables that constitute integration and regulation. In addition, some variables are drawn from other theoretical perspectives, mainly social disorganization and anomie theories, to better explore additional macro-level indicators. Data were obtained from multiple locations. Homicide data for children, from birth through five years, utilized in this work came from the National Incident-Based Reporting System. County level socio-demographics were obtained from the Census. Political party affiliation (Republican or Democrat) came from Politico, and religious data were …
Bio-Inspired Cooperative Optimal Trajectory Planning For Autonomous Vehicles, Charles Remeikas
Bio-Inspired Cooperative Optimal Trajectory Planning For Autonomous Vehicles, Charles Remeikas
Electronic Theses and Dissertations
With the recent trend for systems to be more and more autonomous, there is a growing need for cooperative trajectory planning. Applications that can be considered as cooperative systems such as surveying, formation flight, and traffic control need a method that can rapidly produce trajectories while considering all of the constraints on the system. Currently most of the existing methods to handle cooperative control are based around either simple dynamics and/or on the assumption that all vehicles have homogeneous properties. In reality, typical autonomous systems will have heterogeneous, nonlinear dynamics while also being subject to extreme constraints on certain state …
Predicting The Development Of Counselor Self-Efficacy In Counselors-In-Training During Their First Semester In Practicum Using Embedded, Rich Media In A Distributed Learning Environment., John Super
Electronic Theses and Dissertations
The first semester of practicum is a difficult time for counseling students as they learn to integrate knowledge and theory into clinical practice, often evoking high levels of anxiety (Barbee, Scherer, & Combs, 2003; Ronnestad & Skovholt, 1993) and limiting counselor selfefficacy (Bernard & Goodyear, 2009; Melchert et al., 1996). Practicum is the first opportunity counselors-in-training have to apply theoretical knowledge in a professional setting, use new clinical skills, and test how well they fit into the field of counseling (O‟Connell & Smith, 2005). Additionally, if counselor educators do not fully understand the process counselors in training develop counselor self-efficacy, …
Habitat Use And Feeding Ecology Of Delphinids Inferred From Stable Isotopes And Fatty Acid Signatures, Nicole Browning
Habitat Use And Feeding Ecology Of Delphinids Inferred From Stable Isotopes And Fatty Acid Signatures, Nicole Browning
Electronic Theses and Dissertations
Prey availability, directly or indirectly, affects all aspects of a predator’s life history and is a primary factor influencing habitat selection and movements. This is especially true for delphinid species where it has been documented that the behaviors and movements of dolphins are strongly influenced by food availability. Unfortunately, the feeding ecology and habitat use patterns of many of these species are poorly understood. Many methodologies that have been employed to explore these facets of dolphin ecology have limitations and constraints or are logistically infeasible. Stable isotope and fatty acid signature analyses have been used extensively on a wide variety …
Backpacking In The Digital Age: Ethnographic Perspectives From Latin America, Russell Edwards
Backpacking In The Digital Age: Ethnographic Perspectives From Latin America, Russell Edwards
Electronic Theses and Dissertations
My thesis ethnographically examines the changing nature of backpacking for Westerners in Latin America amid a proliferation of mobile computing and social networking. While anthropological and sociocultural research on tourism is extensive, the social scientific literature on backpacking has, thus far, been largely unconcerned with Western Hemisphere countries and the effects of digital technology on this mode of travel. Recent findings suggest, however, that backpacking has currently moved beyond its niche roots as a subculture of independent traveling into a full-fledged tourist industry. My thesis investigates the Latin American backpacking scene to better understand if this is a global trend. …
Reevaluating The Late Classic Lu-Bat Glyphic Phrase: The Artist And The Underworld, Patrick Carroll
Reevaluating The Late Classic Lu-Bat Glyphic Phrase: The Artist And The Underworld, Patrick Carroll
Electronic Theses and Dissertations
The study of hieroglyphic texts is vital to the interpretation of the ancient Maya and how their worldview contributed to their daily lives. Hieroglyphic decipherment has been an arduous undertaking and a wide variety of the Late Classic Maya writing styles has also been documented. When specific hieroglyphic phrases are not fully understood it has been necessary to utilize other sources of information to help increase the understanding of these texts. The “lubat” glyphic phrase has been utilized in multiple mediums throughout the Late Classic period and is described as an artist’s signature. This artist signature is directly related to …
Investigative Interviewing: A Team-Level Approach, James Driskell
Investigative Interviewing: A Team-Level Approach, James Driskell
Electronic Theses and Dissertations
To date, the tandem interview approach has yet to be scientifically vetted as an investigative interviewing technique. Specifically, it is unclear what affect the application of two interviewers has on the investigative process. This is alarming considering that this approach is regularly applied under current law enforcement operations. Despite a dearth of research examining the tandem interview approach in investigative interviews, the extensive research on teams would lead us to believe that teams should benefit the overall investigative interview process and outperform individuals in detecting lies. Consequently, the goals of this research were to investigate these potential benefits. Findings from …
The Development Of An Eco-Gastronomic Tourism (Egt) Supply Chain-Analyzing Linkages Between Farmer, Restaurants, And Tourists In Aruba., Marcelino Kock
The Development Of An Eco-Gastronomic Tourism (Egt) Supply Chain-Analyzing Linkages Between Farmer, Restaurants, And Tourists In Aruba., Marcelino Kock
Electronic Theses and Dissertations
Purpose of this study is to holistically analyze existing linkages between Aruba’s tourism industry, restaurants and local farmers, by examining strategies that constrain the development of linkages between these stakeholders. Previous research indicated that tourism development is often accompanied with increased demand for imported food, which results in foreign exchange leakages, inflation and competition with local production. This phenomenon is very common in the Caribbean, where Aruba, with its heavy reliance on imported goods and services, is no exception to this occurrence. To comprehend potential problems associated with linking both sectors, these in-depth case study addresses three fundamental questions: a) …
Ancient Maya Stone Polishers And Issues With The Terminology For The Artifacts Polished With These Tools, Rachael Landry
Ancient Maya Stone Polishers And Issues With The Terminology For The Artifacts Polished With These Tools, Rachael Landry
Electronic Theses and Dissertations
The ancient Maya adorned themselves with ornamental objects. This study investigates a type of polishing tool used by the ancient Maya to manufacture certain types of ornaments. Five stone polishing tools used by the ancient Maya are presented and analyzed. Relevant artifact forms are examined to establish which types of artifacts were being polished with these tools. An extensive discussion of the archaeological record and artistic representations of miniature earflares and buttons, which were polished with many of these stone polishing tools, is also included because the terminology used to refer to these objects has varied throughout the academic literature …
A Clutch, A Pride, A Murder, John Miles
A Clutch, A Pride, A Murder, John Miles
Electronic Theses and Dissertations
A Clutch, A Pride, A Murder is a linked collection of seven short fiction pieces and one novella that examine a world much like our own, but with the cover revealed—a world laid bare, exposed by its desires, its emotions, its beauties, and all its machinations. All of the stories involve, either directly or indirectly, the fictional Ohio city of Milton. Some of the stories take place within this seemingly typical American city, while others only involve characters coming from or in some cases returning to this unassuming location. Regardless, the events of these stories either in cause or effect …
Magnesium And Acidified Ethanol Based Treatment Systems For The Extraction And Dechlorination Of Polychlorinated Biphenyls From Contaminated Oils, Paints, And Soils, Simone Novaes-Card
Magnesium And Acidified Ethanol Based Treatment Systems For The Extraction And Dechlorination Of Polychlorinated Biphenyls From Contaminated Oils, Paints, And Soils, Simone Novaes-Card
Electronic Theses and Dissertations
Polychlorinated biphenyls (PCBs) are a class of environmentally persistent halogenated organic compounds that were once used as stabilizers to improve the properties of a variety of materials such as lubricants, heat transfer fluids, paints, and caulking materials. PCBs are also capable of migration through processes such as spillage into soils, leaching into groundwater, and volatilization into the atmosphere. Although banned in 1979 over health concerns, PCBs persist in these materials to this day because they are resistant to biotic degradation and natural weathering processes. The wide variety of contaminated materials means that many existing treatment options cannot be used across …
Assessing The Effectiveness Of Living Shoreline Restoration And Quantifying Wave Attenuation In Mosquito Lagoon, Florida, Jennifer Manis
Assessing The Effectiveness Of Living Shoreline Restoration And Quantifying Wave Attenuation In Mosquito Lagoon, Florida, Jennifer Manis
Electronic Theses and Dissertations
Coastal counties make up only 17% of the land area in the continental United States, yet 53% of the nation’s population resides in these locations. With sea level rise, erosion, and human disturbances all effecting coastal areas, researchers are working to find strategies to protect and stabilize current and future shorelines. In order to maintain shoreline stability while maintaining intertidal habitat, multipurpose living shorelines have been developed to mimic natural shoreline assemblages while preventing erosion. This project determined the effectiveness of a living shoreline stabilization containing Crassostrea virginica (eastern oyster) and Spartina alterniflora (smooth cordgrass) in the field and through …
The Relationship Of Participation In A Summer Transition Program For At-Risk Ninth Grade Students And Their Performance In Algebra I, Jose Sanchez
Electronic Theses and Dissertations
This study examined the Summer Transition Program in a large suburban school district. One of the common concerns of education leaders is the number of students who choose to dropout of high school. The eighth to ninth grade Summer Transition Program has been implemented to address the high school dropout issue and was the focus of this study. The researcher examined if participation in the Summer Transition Program could be predicted by student subgroup, to what extent, if any, participation in the Summer Transition Program had on the academic success in Algebra I, and if there is a relationship with …
On The Capillary Electrophoresis Of Monohydroxy Metabolites Of Polycyclic Aromatic Hydrocarbons And Its Application To The Analysis Of Biological Matrices, Gaston Knobel
Electronic Theses and Dissertations
Polycyclic aromatic hydrocarbons (PAH) are a class of environmental pollutants consisting of a minimum of two fused aromatics rings originating from the incomplete combustion of organic matter and/or anthropogenic sources. Numerous possible anthropogenic and natural sources make the presence of PAH ubiquitous in the environment. The carcinogenic nature of some PAH and their ubiquitous presence makes their chemical analysis a topic of environmental and toxicological importance. Although environmental monitoring of PAH is an important step to prevent exposure to contaminated sites, it provides little information on the actual uptake and subsequent risks. Parent PAH are relatively inert and need metabolic …
A Delphi Study To Construct A Script Concordance Test For Spiritual And Religious Competence In Counseling, Christopher Christmas
A Delphi Study To Construct A Script Concordance Test For Spiritual And Religious Competence In Counseling, Christopher Christmas
Electronic Theses and Dissertations
The need to address spiritual and religious issues is well established in the counseling literature and in accreditation standards, however, many graduates counseling students do not feel prepared to address these issues. In the United States, the vast majority of clients consider themselves to be spiritual or religious, so counselors who lack competence in addressing spiritual and religious issues in counseling are likely to offer ineffective or perhaps unethical care to clients. Counselor educators must improve education and assessment in this critical specialty area of counseling. Of primary concern is a student’s ability to demonstrate spiritual competence in counseling. The …
Target Validation For Neurofibromatosis Type 2 Therapeutics., Alejandra Guinart
Target Validation For Neurofibromatosis Type 2 Therapeutics., Alejandra Guinart
Electronic Theses and Dissertations
Neurofibromatosis type 2 (NF2) is a benign tumor disease of the nervous system. Development of bilateral vestibular schwannomas is characteristic of NF2; however patients frequently present schwannomas on other nerves, as well as meningiomas and ependymomas. Currently, there are no drug therapies for NF2. There is an urgent need for development of NF2 therapeutics and this dissertation presents two independent potential therapeutic targets. The disease is caused by mutations in the NF2 gene that encodes a tumor suppressor called merlin. Loss of merlin function is associated with increased activity of Rac and p21-activated kinases (PAK) and deregulation of cytoskeletal organization. …
Characterization Of Innate Immunity In The Female Reproductive Tract For The Prevention Of Hiv Acquisition, Colleen Eade
Characterization Of Innate Immunity In The Female Reproductive Tract For The Prevention Of Hiv Acquisition, Colleen Eade
Electronic Theses and Dissertations
Human immunodeficiency virus (HIV) infects 30 million people worldwide. In sub-Saharan Africa, the region most affected by HIV, women comprise 60% of the infected population. Heterosexual transmission is a major mode of viral acquisition, mandating further research of the process and prevention of HIV acquisition via the female reproductive tract (FRT). The FRT is a dynamic environment, protected by host immune mechanisms and commensal microbes. The disruption of either of these elements can increase susceptibility to HIV. Accordingly, one common risk factor for HIV acquisition is the microbial shift condition known as bacterial vaginosis (BV), which is characterized by the …
Antipodes: Ways To See The World, Brenda Sallee
Antipodes: Ways To See The World, Brenda Sallee
Electronic Theses and Dissertations
This thesis is an examination of the geographical oddities of my past, the process of transitioning between worlds, and the kinds of relationships that survive those transitions. In a world where I can fly from Atlanta to Beijing non-stop in fifteen hours, I sometimes convince myself that geography no longer matters. I was born in the tropics, raised in the arctic, and became a dual citizen of the same two countries twice. I could distinguish gunshots from fireworks by age five and have ridden the Trans-Siberian Railroad in both directions. I have milked a water buffalo and played Tchaikovsky’s piano …
Drops Of Light In The Dark, April Urban
Drops Of Light In The Dark, April Urban
Electronic Theses and Dissertations
The short stories in this collection focus on young individuals’, especially women’s, experience and development as they navigate personal relationships and search for a place in the world. Both longer stories and flash fiction are included, and stories are told in past and present tense, and from first, second, and third person point of view. However, the narration of all of these stories stays close to the characters’ points of view, inhabiting their visceral experience. These stories take place in a variety of settings, including a beachside motel, college campuses, bars, and offices. All of these characters, though, struggle with …
Does Virtual Reality Elicit Physiological Arousal In Social Anxiety Disorder, Maryann Owens
Does Virtual Reality Elicit Physiological Arousal In Social Anxiety Disorder, Maryann Owens
Electronic Theses and Dissertations
The present study examined the ability of a Virtual Reality (VR) public speaking task to elicit physiological arousal in adults with SAD (n=25) and Controls (n=25). A behavioral assessment paradigm was employed to address three study objectives: (a) to determine whether the VR task can elicit significant increases in physiological response over baseline resting conditions (b) to determine if individuals with SAD have a greater increase from baseline levels of physiological and self-reported arousal during the in vivo speech task as opposed to the VR speech task and (c) to determine whether individuals with SAD experience greater changes in physiological …
Reason For Rejoice, Jennifer Karr
Reason For Rejoice, Jennifer Karr
Electronic Theses and Dissertations
This collection of short stories features characters who face unexpected situations arising from ordinary circumstances. Most of the characters find themselves compelled to react in ways that may even surprise themselves. A young woman finds her first feeling of joy in a long time in the face of her mother’s possible death. Best friends recall their years spent doing drugs and ignoring responsibility. When a woman confronts her fear of sex, she finds herself literally in another world. Rather than sticking with one form, several stories depart from traditional structures. One flash fiction piece is told in the first-person collective …
Molecular Regulators Of Post-Golgi Vldl Transport Vesicle (Pg-Vtv) Biogenesis, Aladdin Riad
Molecular Regulators Of Post-Golgi Vldl Transport Vesicle (Pg-Vtv) Biogenesis, Aladdin Riad
Electronic Theses and Dissertations
Amongst its numerous functions, the liver is responsible for the synthesis and secretion of very low-density lipoprotein (VLDL). VLDL particles play the important role of facilitating the transport of lipids within the aqueous environment of the plasma; yet high plasma concentrations of these particles result in the pathogenesis of atherosclerosis, while low VLDL secretion from the liver results in hepatic steatosis. VLDL synthesis in the hepatocyte is completed in the Golgi apparatus, which serves as the final site of VLDL maturation prior to its secretion to the bloodstream. The mechanism by which VLDL’s targeted transport to the plasma membrane is …
Role Of Host Immune Response And Bacterial Autolysin Atl In Human Nasal Colonization By Staphylococcus Aureus, Vanathy Paramanandam
Role Of Host Immune Response And Bacterial Autolysin Atl In Human Nasal Colonization By Staphylococcus Aureus, Vanathy Paramanandam
Electronic Theses and Dissertations
Staphylococcus aureus (SA) is a major human pathogen that colonizes the anterior nares in 30% of the human population. Though nasal carriage of SA is a known risk factor for the subsequent spread of SA infections, the dynamics of SA nasal colonization is poorly understood. Our research focuses on understanding the host and bacterial factors that might contribute to the human nasal colonization by SA. In an attempt to elucidate the host response to SA, we performed an autologous human in vivo nasal colonization study, which showed decreased survival rates of SA in hosts who elicited a robust immune response. …
The Effect Of Curriculum Organization On The Acquisition Of Abstract Declarative Knowledge In Computer Based Instructions., Saleh Al-Foraih
The Effect Of Curriculum Organization On The Acquisition Of Abstract Declarative Knowledge In Computer Based Instructions., Saleh Al-Foraih
Electronic Theses and Dissertations
The United States of America has dropped behind many countries in terms of the Science and Engineering university degrees awarded since the beginning of the nineties. Multiple studies have been conducted to determine the cause of this decline in degrees awarded, and try to reverse the trend in US education. The goal of these studies was to determine the proper instructional methods that facilitate the knowledge acquisition process for the student. It has been determined that not one method works for all types of curriculum, for example methods that have been found to work effectively in curriculum that teaches procedures …
Eighth-Grade Students Reading Nonfiction Literature On The Ipad: An Exploratory Case Study, Victoria Cardullo
Eighth-Grade Students Reading Nonfiction Literature On The Ipad: An Exploratory Case Study, Victoria Cardullo
Electronic Theses and Dissertations
The intent of this qualitative research study was to investigate the experiences of eighth-grade readers as they read nonfiction text on an iPad for academic purposes. Analysis of the Common Core State Standards (CCSS) calls for close reading requiring readers to interact with the text to create meaning (Fisher, n.d.). With this in mind, the researcher investigated reading strategies students used to support their reading as well as what role the iPad features played in the reading process. Several theoretical perspectives informed the framework for this study: (a) New Literacies theory, (b) transactional theory, (c) constructivist theory, and (d) metacognition …
Biochemical Characterization Of The Nifb Enzyme And Nifb-Cofactor, Jirair Gevorkyan
Biochemical Characterization Of The Nifb Enzyme And Nifb-Cofactor, Jirair Gevorkyan
Electronic Theses and Dissertations
The Mo-nitrogenase complex is composed of two components, Fe-protein and MoFe-protein. This complex is able to catalyze the reduction of N2 through the MgATP dependent transfer of electrons from the Fe-protein Fe4S4 cluster to the MoFe-protein P-cluster and, subsequently, to the iron-molybdenum cofactor (FeMoco). FeMo-co is a Fe7S9MoC-(R)-homocitrate cluster and has two biosynthetic precursors, NifB-co and L-cluster, of unknown structure and composition. The biosynthesis of FeMo-co is an enigmatic process that minimally requires NifB, NifEN, Fe-protein, MoO4 2- , (R)-homocitrate and S-adenolsylmethionine. A means to isolate the NifB enzyme for characterization has been developed through use of a GST-fusion tag. …