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Articles 15421 - 15450 of 24724
Full-Text Articles in Entire DC Network
Effectiveness Of Manual Palpation In The Northern Water Snake, Nerodia Sipedon Sipedon, As A Method To Extract Gut Contents For Dietary Studies, Marcella Ann Cruz
Effectiveness Of Manual Palpation In The Northern Water Snake, Nerodia Sipedon Sipedon, As A Method To Extract Gut Contents For Dietary Studies, Marcella Ann Cruz
Theses, Dissertations and Capstones
The Common Water Snake, Nerodia sipedon sipedon, is one of six subspecies, and the only species of Nerodia to inhabit West Virginia. Because it is abundant and information on the species is lacking within the state, it was used as my study organism. The effectiveness of manual palpation, the most commonly used method in snake diet related studies, was tested against museum dissection by comparing presence and absence of gut contents. Nineteen individuals of 76 manually palpated collected snakes were compared to 6 individuals of 37 dissected snakes using a Pearson chi-square analysis. Results suggested manual palpation is an effective …
Role Of Iron In Ethanol Derived Hepatic Stress, Jesse A. Thornton
Role Of Iron In Ethanol Derived Hepatic Stress, Jesse A. Thornton
Theses, Dissertations and Capstones
Chronic alcohol abuse is the third leading cause of preventable death in the United States. Ethanol metabolism causes liver injury through alterations in hepatic metabolic state, redox status, and acetaldehyde adduct formations. Increased iron absorption is associated with chronic ethanol consumption and may play a role in ethanol induced oxidative stress. We tested the hypothesis that normal labile iron in the liver plays a role in ethanol related pathological stress, using C57/Bl6 mice pair-fed Lieber-DeCarli liquid ethanol diets for 11 and 22 weeks. Normal iron group mice received 55mg/kg iron as ferric citrate, whereas the low iron groups received 5mg/kg. …
Examining Habitat Selection And Home Range Behavior At Multiple Scales In A Population Of Eastern Box Turtles, (Terrapene C. Carolina), With Notes On Demographic Changes After 17 Years, Brian Anthony Williamson
Examining Habitat Selection And Home Range Behavior At Multiple Scales In A Population Of Eastern Box Turtles, (Terrapene C. Carolina), With Notes On Demographic Changes After 17 Years, Brian Anthony Williamson
Theses, Dissertations and Capstones
The Eastern Box Turtle, Terrapene c. carolina, is a terrestrial species native to the eastern United States. Once considered common, it is currently declining in much of its range due to habitat destruction and disease. To conserve the species, knowledge of Eastern Box Turtle habitat selection and the factors influencing their movement is necessary. Although the home range behavior of the Eastern Box Turtle has been well studied, few studies have quantified habitat selection at the home-range scale. Therefore, I examined home-range selection and within home range habitat selection in a population of Eastern Box Turtles at Hungry Beech Nature …
Genetic Regulation Of Mucoidy In Pseudomonas Aeruginosa, T. Ryan Withers
Genetic Regulation Of Mucoidy In Pseudomonas Aeruginosa, T. Ryan Withers
Theses, Dissertations and Capstones
Cystic fibrosis is a genetic disorder that results from mutations in the CF transmembrane conductance regulator gene. These mutations cause a disruption in the chloride transport in mucosal tissues causing the accumulation of dehydrated mucus, and a decrease in the mucocilliary removal of environmental pathogens within the lungs. Additionally, the accumulation of dehydrated mucus within the lungs provides a hospitable environment for various bacteria, including the Gram-negative opportunistic pathogen Pseudomonas aeruginosa. P. aeruginosa uses the overproduction of a surface polysaccharide called alginate to form a biofilm to evade the host’s immunological defenses. The overproduction of alginate, often referred to as …
Toxicological Effects Of Cerium Oxide Nanoparticle Aggregates On Caenorhabditis Elegans, Steven N. Rogers
Toxicological Effects Of Cerium Oxide Nanoparticle Aggregates On Caenorhabditis Elegans, Steven N. Rogers
Theses, Dissertations and Capstones
Assessing the toxicity and unique reactivity of nanoparticles in biological systems has become an relevant and quickly growing area of environmental toxicology research. The broad use of nanoparticles in industrial and commercial commodities results in exposure of these nano-compounds to the environment, the ecosystems, and humans. While previous data has suggested that cerium oxide (CeO2) nanoparticles are relatively safe to cultured cells much less is known about the potential toxicity of these materials at the organismal level. In this study we employed transgenic Caenorhabditis elegans (C. elegans) strains to assess the toxicity of CeO2 nanoparticles under “real-world” …
Perceptions Of Nursing Education Administrators Regarding The Relationship Of Admission Criteria To Student Graduation, Joy F. Cline
Perceptions Of Nursing Education Administrators Regarding The Relationship Of Admission Criteria To Student Graduation, Joy F. Cline
Theses, Dissertations and Capstones
This research investigated admission criteria of baccalaureate nursing students related to their success in a multi-state sample of peer universities in the United States. The researcher used mixed methods to collect data that were analyzed using descriptive and phenomenological approaches. The sample of the study was chairpersons from peer institutions of nursing. Data were collected based on the lived experiences of the chairpersons. The purpose of the study was to identify admission criteria that the schools in the study were using and to identify the criteria that predicted success as defined by graduation. The premise of the study was that …
Filling In The Gaps In Phenology And Life History Of The Cumberland Plateau Salamander (Plethodon Kentucki), Robert C. Bowers
Filling In The Gaps In Phenology And Life History Of The Cumberland Plateau Salamander (Plethodon Kentucki), Robert C. Bowers
Theses, Dissertations and Capstones
The Cumberland Plateau Salamander, Plethodon kentucki, is a member of the Plethodon glutinosus complex comprising 16 sibling species, which are best differentiated by range. Few studies have been conducted to gain information on the natural history of P. kentucki. To alleviate this, two sites at Beech Fork State Park in Wayne County, West Virginia were used to study the salamander’s general life history with emphasis on reproduction, phenology, and population size. At each site, three 20m x 20m sample plots were arranged based on viability of the habitat for P. kentucki. Ground searches of all cover objects …
Gene Transfer In A Newly Established Spontaneous Feline Fibrosarcoma Cell Line, Rounak Nande
Gene Transfer In A Newly Established Spontaneous Feline Fibrosarcoma Cell Line, Rounak Nande
Theses, Dissertations and Capstones
Fibrosarcoma is a deadly disease in cats and is most often located at classical vaccine injections sites. More rare forms of spontaneous non-vaccination site (NSV) fibrosarcomas have been described and have been found associated to genetic alterations.
Purpose of this study was to compare the efficacy of adenoviral gene therapy in NVS fibrosarcoma. The NVS fibrosarcoma cell line (Cocca-6A) was isolated from a spontaneous fibrosarcoma that occurred in a domestic calico cat. Cocca-6A fibrosarcoma cells were morphologically and cytogenetically characterized. The feline cells were karyotyped and their chromosome number was counted using a Giemsa staining. Giemsa block staining of metaphase …
A Word Is Worth A Thousand Pictures: A Systemic Functional And Multimodal Discourse Analysis Of Intersemiotic Evaluation In University Science Textbooks, Leo William Roehrich
A Word Is Worth A Thousand Pictures: A Systemic Functional And Multimodal Discourse Analysis Of Intersemiotic Evaluation In University Science Textbooks, Leo William Roehrich
Theses, Dissertations and Capstones
Images are an invaluable medium in science textbooks for clarifying confusing concepts and establishing a visual foundation for field related topics. The integration of image and language within a single unit of discourse builds a larger meaning than the two semiotic forms are capable of producing separately. Visual representations are chosen for their functional value in aiding linguistic explanation and also for their aesthetic value in textual enhancement. Aesthetic choice is a matter of subjective opinion. Although science writing is generally classified as objective, authors embed personal opinion in written and visual discourse. The choice of visual medium has a …
Toward A Comprehensive Model Of Photosystem Ii Oxygen Evolving Complex Photoassembly, James Scott Board Ii
Toward A Comprehensive Model Of Photosystem Ii Oxygen Evolving Complex Photoassembly, James Scott Board Ii
Theses, Dissertations and Capstones
Elucidating the mechanism of photoassembly of the oxygen-evolving complex (OEC) will lead to a better understanding of how nature catalyzes water oxidation. Although the temperature dependence of oxygen evolution has been described in the literature [1,2], we have performed a comprehensive study that covers Photosystem II (PSII) activity oxygen evolution in the presence and absence of 2,6-dichloro-1,4benzoquinone (DCBQ) from 5–45°C. In addition, we performed similar measurements for OEC photoassembly in the absence of DCBQ. PSIIenriched particles used for our measurements were prepared according to Berthold, Babcock, and Yocum[3], with modifications from Kolling, et al.[4] The oxygen-evolution of intact BBY particles …
A Study Of Secondary Science Teacher Efficacy And Level Of Constructivist Instructional Practice Implementation In West Virginia Science Classrooms, Amanda Kristen Knapp
A Study Of Secondary Science Teacher Efficacy And Level Of Constructivist Instructional Practice Implementation In West Virginia Science Classrooms, Amanda Kristen Knapp
Theses, Dissertations and Capstones
The purpose of this study was to investigate the level of use of selected constructivist instructional practices and level of teacher efficacy in West Virginia secondary science classrooms. The study next sought to determine if a relationship existed between level of use of the constructivist practices and teacher efficacy. In addition the study sought to determine if differences existed in level of use of the selected constructivist practices and/or teacher efficacy based on selected demographic variables
The study was a mixed-methods design. First, a researcher-developed survey instrument was used to collect data regarding the level of use of constructivist instructional …
Traumatic Brain Injury: The Relationship Of Psychosocial Variables And Location Of Injury To Post-Injury Depression, Alicia L. Smith
Traumatic Brain Injury: The Relationship Of Psychosocial Variables And Location Of Injury To Post-Injury Depression, Alicia L. Smith
Theses, Dissertations and Capstones
Traumatic Brain Injury (TBI) affects nearly 1.4 million people in the United States annually, and of these, 10% to 77% will experience post-injury depression. Psychosocial variables such as previous substance and alcohol abuse, prior mental illness, low educational attainment, and poverty have been identified as possible risk factors. Additionally, the location of injury appears to play a key role particularly if the injury occurs in the left hemisphere. This study examined archival data from brain-injured patients in an effort to better understand the factors related to post-TBI depression. Past medical records of brain-injured adults (N = 52) were reviewed …
West Virginia School Psychologists' Roles In Contrast To The Nasp Practice Model, Kimberly S. Sheltraw
West Virginia School Psychologists' Roles In Contrast To The Nasp Practice Model, Kimberly S. Sheltraw
Theses, Dissertations and Capstones
The purpose of this study was to evaluate the current roles of school psychologists practicing in West Virginia in contrast and comparison to the National Association of School Psychology (NASP) Model of Comprehensive and Integrated School Psychological Services. A needs-assessment survey developed by the West Virginia School Psychologist Association (WVSPA) was distributed to all the school psychologists in West Virginia in order to determine the main services being provided in the state. The results indicated that school psychologists in West Virginia spend the majority of their time in data-based decision-making as opposed to evenly distributing their time conducting a broad …
Interaction Of Pyrimoidiazolium Ions With Calf Thymus Dna, Stormy Rene Gibson
Interaction Of Pyrimoidiazolium Ions With Calf Thymus Dna, Stormy Rene Gibson
Theses, Dissertations and Capstones
A new class of fluorescent dyes, pyridoimidiazolium cations, is being considered for their possible use in the biochemical field because of their interactions with DNA. Binding of low molecular weight fluorophores has been proven to cause a wide variety of biological responses in DNA. The dyes used here have been synthesized using α-diimine type compounds. The reaction used has the capability to produce many fluorescent cations. Binding constants of these compounds in acetonitrile with calf thymus DNA have been determined by measuring emission intensity. Emission intensity showed the degree to which binding is occurring. The experimental results show that binding …
Examining The Influence Of Mating Systems On Testes Size In Salamanders, Howard James Stanton Ii
Examining The Influence Of Mating Systems On Testes Size In Salamanders, Howard James Stanton Ii
Theses, Dissertations and Capstones
Sperm competition theory predicts that relatively larger testes sizes evolve in animals with polygamous mating systems compared to those in monogamous mating systems due to sperm competition. Whereas intensity of sperm competition is the significant predictor of testes sizes in other taxa such as mammals, frogs, birds, insects, and fish, in salamanders the intensity of male-male competition in the transfer of spermatophores to females is predicted to be a critical factor. This is because males have to deposit more spermatophores to secure reproductive pay-off under higher intensity of male-male competition. I hypothesized that salamander species that breed explosively as groups …
Quantitative Reconstruction And Two-Dimensional, Steady Flow Hydrodynamics Of The Plesiosaur Flipper, Mark Cruz Deblois
Quantitative Reconstruction And Two-Dimensional, Steady Flow Hydrodynamics Of The Plesiosaur Flipper, Mark Cruz Deblois
Theses, Dissertations and Capstones
Plesiosaurs are a group of extinct marine reptiles that thrived during the Mesozoic Era. They are unique for swimming with two hydrofoil-shaped flippers. Penguins, sea turtles, and cetaceans all have hydrofoil shaped flippers but penguins and sea turtles only use the front pair to produce thrust and cetaceans use their tail flukes. Consequently, the mode of swimming for plesiosaurs has long been debated. However, a quantitative study of the hydrodynamic properties of the flippers, which would constrain inference about their mode of swimming, has not yet been done. The main reason is that the trailing edge of the plesiosaur flipper …
Ontogenetic State Of A Juvenile Polycotylid Plesiosaur (Sauropterygia: Plesiosauria) And Its Implications For Plesiosaur Growth, Christina Joanne Byrd
Ontogenetic State Of A Juvenile Polycotylid Plesiosaur (Sauropterygia: Plesiosauria) And Its Implications For Plesiosaur Growth, Christina Joanne Byrd
Theses, Dissertations and Capstones
Understanding ontogenetic variation in plesiosaurs from the family Polycotylidae can provide insight into the evolutionary history of this group of extinct short-necked marine reptiles from the Cretaceous period. In this study, I analyzed a juvenile polycotylid plesiosaur from the University of Nebraska State Museum (UNSM 55810). UNSM 55810 came from the Pierre Shale (99-65 Ma) of Nebraska and possesses skeletal elements that include a partial skull, nearly complete pectoral and pelvic girdles, and an assortment of paddle elements. Based on several cranial characteristics, this specimen is probably referable to the genus Dolichorhynchops. Previous qualitative studies have included UNSM 55810 but …
Omega-3 Fatty Acids As Therapeutic Options For The Treatment Of B-Cell Chronic Lymphocytic Leukemia, Johannes Francois Fahrmann
Omega-3 Fatty Acids As Therapeutic Options For The Treatment Of B-Cell Chronic Lymphocytic Leukemia, Johannes Francois Fahrmann
Theses, Dissertations and Capstones
B-cell chronic lymphocytic leukemia (CLL) is the most common form of adult leukemia in the western world. CLL is often diagnosed in the asymptomatic (early-stage) stages. However, approximately 50% of these patients will progress to advanced, symptomatic disease and require therapy. Current treatment options are limited due to progressive drug resistance and severe drug-induced toxicities which are often too toxic for the elderly or those with co-morbidities. Therefore, a non-toxic therapeutic intervention that could slow the progression of asymptomatic CLL to symptomatic CLL or enhance the effects of actively used chemo-therapeutic drugs in patients who require therapy would be clinically …
A Multi-Objective Optimal Pid Control For A Nonlinear System With Time Delay, Furui Xiong, Zhichang Qin, Carlos Hernández, Yousef Sardahi, Yousef Narajani, Wei Liang, Yang Xue, Oliver Schütze, Jianqiao Sun
A Multi-Objective Optimal Pid Control For A Nonlinear System With Time Delay, Furui Xiong, Zhichang Qin, Carlos Hernández, Yousef Sardahi, Yousef Narajani, Wei Liang, Yang Xue, Oliver Schütze, Jianqiao Sun
All Engineering Faculty Research
It is generally difficult to design feedback controls of nonlinear systems with time delay to meet time domain specifications such as rise time, overshoot, and tracking error. Furthermore, these time domain specifications tend to be conflicting to each other to make the control design even more challenging. This paper presents a cell mapping method for multi-objective optimal feedback control design in time domain for a nonlinear Duffing system with time delay. We first review the multi-objective optimization problem and its formulation for control design. We then introduce the cell mapping method and a hybrid algorithm for global optimal solutions. Numerical …
The Role Of Canids In Ritual And Domestic Contexts: New Ancient Dna Insights From Complex Hunter-Gatherer Sites In Prehistoric Central California, Alan M. Leventhal, Brian F. Byrd, Anna Cornellas, Jelmer W. Eerkens, Jeffrey Rosenthal, Tim R. Carpenter, Jennifer A. Leonard
The Role Of Canids In Ritual And Domestic Contexts: New Ancient Dna Insights From Complex Hunter-Gatherer Sites In Prehistoric Central California, Alan M. Leventhal, Brian F. Byrd, Anna Cornellas, Jelmer W. Eerkens, Jeffrey Rosenthal, Tim R. Carpenter, Jennifer A. Leonard
Faculty Publications, Anthropology
This study explores the interrelationship between the genus Canis and hunter–gatherers through a case study of prehistoric Native Americans in the San Francisco Bay-Sacramento Delta area. A distinctive aspect of the region's prehistoric record is the interment of canids, variously classified as coyotes, dogs, and wolves. Since these species are difficult to distinguish based solely on morphology, ancient DNA analysis was employed to distinguish species. The DNA study results, the first on canids from archaeological sites in California, are entirely represented by domesticated dogs (including both interments and disarticulated samples from midden deposits). These results, buttressed by stable isotope analyses, …
Productive Resources In Students’ Ideas About Energy: An Alternative Analysis Of Watts’ Original Interview Transcripts, Benedikt W. Harrer, Virginia J. Flood, Michael C. Wittmann
Productive Resources In Students’ Ideas About Energy: An Alternative Analysis Of Watts’ Original Interview Transcripts, Benedikt W. Harrer, Virginia J. Flood, Michael C. Wittmann
Faculty Publications
For over 30 years, researchers have investigated students’ ideas about energy with the intent of reforming instructional practice. In this pursuit, Watts contributed an influential study with his 1983 paper “Some alternative views of energy” [Phys. Educ. 18, 213 (1983)]. Watts’ “alternative frameworks” continue to be used for categorizing students’ non-normative ideas about energy. Using a resources framework, we propose an alternate analysis of student responses from Watts’ interviews. In our analysis, we show how students’ activated resources about energy are disciplinarily productive. We suggest that fostering seeds of scientific understandings in students’ ideas about energy may play an important …
The Relationship Between Parent Participation And Student Success In A Long-Term Weight Loss Immersion Program, Susan Mary Trotter Borgman
The Relationship Between Parent Participation And Student Success In A Long-Term Weight Loss Immersion Program, Susan Mary Trotter Borgman
Education Dissertations and Projects
This study focused on the relationship between student success in a long-term weight loss immersion treatment program and parent participation in the program; parent participation is defined as engaging in similar healthy behaviors at home while their child is in the program including (1) parents also striving to achieve or maintain a healthy weight; (2) parents self-monitoring of weight loss behaviors/healthy habits; (3) parents reducing/eliminating high fat foods in the home and increasing nonfat/low fat foods in the home; (4) parents improving family support in the home; and (5) parents facilitating healthy family functioning in the home.
The problem addressed …
The Impact Of A Grade Nine Transition Program On Student Success In The Piedmont Region Area Of North Carolina, Phillip Jermaine Johnson
The Impact Of A Grade Nine Transition Program On Student Success In The Piedmont Region Area Of North Carolina, Phillip Jermaine Johnson
Education Dissertations and Projects
This dissertation was designed to evaluate the effectiveness of the Grade 9 transition program at an urban high school in the piedmont area of North Carolina. Grade 9 is a pivotal year that determines which students prevail and which students fail to finish high school (Hertzog, 2003). It is essential that schools put in place components that ease the transition into high school and provide ongoing support.
Investigation measuring instruments that were used by the researcher included a student survey and a teacher survey which involved Grade 9 students and those teachers who taught Grade 9 students. The data that …
Improving Patient Flow Through The Implementation Of A Results Pending Treatment Area, Heather L. Bryant
Improving Patient Flow Through The Implementation Of A Results Pending Treatment Area, Heather L. Bryant
Nursing Theses and Capstone Projects
The purpose of this research study is to retrospectively evaluate whether the implementation of a Results Pending Treatment Area (RPTA) altered patient flow patterns and therefore reduced patient length of stay (LOS) for ambulatory patients in a Level One Trauma Center Emergency Department. The research is justified because a reduction in the length of stay for patients is shown to decrease overcrowding, ED wait times, loss of revenue, and diversion while improving patient safety and patient satisfaction. The Roy Adaptation Model was the overarching theoretical conceptual framework utilized to support the research, with a more detailed emphasis on Swanson's …
Andean And Tibetan Patterns Of Adaptation To High Altitude, Abigail W. Bigham, Megan J. Wilson, Colleen G. Julian, Melisa Kiyamu, Tom D. Brutsaert
Andean And Tibetan Patterns Of Adaptation To High Altitude, Abigail W. Bigham, Megan J. Wilson, Colleen G. Julian, Melisa Kiyamu, Tom D. Brutsaert
SU Faculty publications on Wellness
Objectives: High-altitude hypoxia, or decreased oxygen levels caused by low barometric pressure, challenges the ability of humans to live and reproduce. Despite these challenges, human populations have lived on the Andean Altiplano and the Tibetan Plateau for millennia and exhibit unique circulatory, respiratory, and hematological adaptations to life at high altitude. We and others have identified natural selection candidate genes and gene regions for these adaptations using dense genome scan data. One gene previously known to be important in cellular oxygen sensing, egl nine homolog 1 (EGLN1), shows evidence of positive selection in both Tibetans and Andeans. Interestingly, the pattern …
Senate Bills
Richmond Journal of Law and the Public Interest
Listing of Senate bills from the 2013 General Assembly
Process And Making Of Landscape, Joseph Wood
Process And Making Of Landscape, Joseph Wood
Architecture Thesis Prep
This thesis seeks to focus its study on geological processes in nature as a tool to both make and read the landscape as if it were a novel; to uncover its myths and to allow the viewer to interpret its past. As Brad Cloepfil of the architecture practice Allied Works has stated, "A landscape that took some ten million years to form, millions of years before the appearance of man, is thereby nudged toward that most unique of human capacities; language." I claim that by extending the definition of making, earth driven processes can be used as tools to study, …
Pectocarya Anisocarpa, A New Species Of Boraginaceae, And A Revised Key For The Genus In Western North America, C. Matt Guilliams, Barbara A. Veno, Michael G. Simpson, Ronald B. Kelley
Pectocarya Anisocarpa, A New Species Of Boraginaceae, And A Revised Key For The Genus In Western North America, C. Matt Guilliams, Barbara A. Veno, Michael G. Simpson, Ronald B. Kelley
Aliso: A Journal of Systematic and Floristic Botany
Pectocarya is a genus of 13 currently accepted taxa in Boraginaceae, subtribe Cryptanthinae. The genus has an amphitropical distribution in the New World, with eight taxa in western North America, seven in South America, and two occurring in both continents. Members of Pectocarya are distinctive in having a bilaterally or radially symmetrical fruit of four strongly divergent nutlets. Taxa within the genus are distinguished largely by the morphology of the nutlets, including shape, size, margin, posture, and variability both within a fruit and/or within a plant. Pectocarya "anisocarpa" (Boraginaceae) was previously named and described, but not validly published. Along with …
The Joint Archives Quarterly, Volume 22.04: Winter 2013, Madalyn Northuis, Geoffrey D. Reynolds
The Joint Archives Quarterly, Volume 22.04: Winter 2013, Madalyn Northuis, Geoffrey D. Reynolds
The Joint Archives Quarterly
No abstract provided.
Graduate Catalogue 2013-2014, Seton Hall University
Graduate Catalogue 2013-2014, Seton Hall University
Graduate Catalogues
No abstract provided.