Digital Commons Network^™

From The Fields To The Molecules: An Investigation Of Mitochondrial Dna Inheritance In Strawberries, Monica Quimby

Inquiry Journal 2010

No abstract provided.

Mass Graves And A Thousand Hills: University Student Perspectives On The Gacaca Courts In Post-Genocide Rwanda, Jacqueline Lewis

Inquiry Journal 2010

No abstract provided.

Mapping The Mahajanga Basin: Using Gis To Explore Spatial Relationships In Madagascar's Geology And Paleontology, Anne Brown

Geography Honors Projects

Tha Mahajanga Basin, located in northwestern Madagascar, is a region of intense geological and paleontological study, but has never before been subject to spatial analysis. Since 1993, expeditions conducted by Stony Brook University, Macalester College, and the University of Antananarivo have uncovered a rich sampling of more than six thousand specimens and observations including fossils of non-avian dinosaurs, crocodiles, and turtles. This paper analyzes the spatial relationships between paired groups within the fossil record as well as wider regional trends to address paleoenvironment. A combination of spatial analysis and statistics are used to determine the patterns existing between fossils or …

Coupling Into Waveguide Evanescent Modes With Applications In Electron Paramagnetic Resonance, Jason Walter Sidabras

Master's Theses (2009 -)

The use of analytical and numerical techniques in solving the coupling of evanescent modes in a microwave waveguide through slots can be optimized to create a uniform magnetic field excitation on axis within a waveguide. This work has direct applications in Electron Paramagnetic Resonance (EPR) where a 100~kHz time-varying magnetic field is incident on a sample contained in a microwave cavity. Typical cavity designs do not take into consideration the uniformity of the 100~kHz field modulation and assume it to be uniform enough over the sample region from quasi-static principles. This work shows otherwise and uses Ansoft (Pittsburgh, PA) High …

Candida Albicans Adhesion And Biofilm Formation On Phosphated And Non-Phosphate Containing Poly(Methylmethacrylate) Polymers, Kathryn Elizabeth Ryan

Master's Theses (2009 -)

Denture-induced stomatitis is prevalent among prosthesis users, particularly the elderly and institutionalized where it has been estimated to be present in over 60-65% of denture wearers. Treatment of this clinical condition is problematic due to incomplete disinfection of the acrylic surface and rapid microbial re-colonization. Moreover, ingestion or aspiration of pathogens in denture plaque exposes the elderly and immunocompromised to unexpected infections.

Acrylic polymers have generally been used to replace missing teeth and periodontal tissues in edentulous or partially dentate patients. Currently, edentulous adults in the US population are common, with complete edentulism greater than 41% among Americans aged 65 …

Light-Activation Influence On The Thermal Analysis Of A Resin-Modified Glass-Ionomer, Raksha Srinivas

Master's Theses (2009 -)

The acid-base and light polymerization reactions in resin modified glass ionomers (RMGI) have been shown to compete and possibly inhibit one another during early RMGI development. Earlier beginning times of light polymerization initiation may limit the acid-base reaction and if time allowed for the acid-base components to react is increased, the extent of light cure reaction may be lesser. The thermal behavior of a commercially available RMGI was investigated in relation to a light initiation regimen using a differential scanning calorimeter (DSC). The relationship between delay in light initiation or no light initiation and the resultant set matrix of the …

Effects Of Parental Divorce On Uncertainty Following Initial Communication With A Potential Romantic Partner, Julia Ann Hansch

Master's Theses (2009 -)

Decades of research have supported Berger and Calabrese's (1975) Uncertainty Reduction Theory (URT), which posits that reducing uncertainty is a chief goal of initial communication between strangers. This study extends the scope of URT, focusing on initial communication between strangers who see themselves as potential romantic partners. Further, this study specifically examines the potential influence of a well-researched external factor that has been found to negatively affect the way people communicate and behave within romantic relationships: parental divorce. Although many studies have assessed the impact of parental divorce on communication in developed relationships, there is little research examining its impact …

Application Of Mechanical Vibration To Modulate Orthodontic Tooth Movement (Otm) In Mice, Andrew Rummel

Master's Theses (2009 -)

Purpose: The purpose of this study was to use micro CT to evaluate the effect of mechanical vibration on orthodontic tooth movement (OTM) in mice. Materials and Methods: Thirty-six mice (C57BL/6, 20 weeks old, male) were randomly divided into four groups: spring/vibration (SV), spring only (S), vibration only (V), control (C). A nickel-titanium (NiTi) spring was fabricated and inserted bilaterally between the maxillary 1st molars, delivering an initial force of 20 grams. From day 0, mechanical vibration (4Hz frequency, 20micron displacement, 5 min per session duration) was applied to the left maxillary 1st molar every three days for 3 weeks …

A Phenomenological Exploration Of School Counselors' Conceptualization And Implementation Of Multicultural Competence, Jasmine Knight

Counseling & Human Services Theses & Dissertations

School counselors need multicultural competence to implement comprehensive school counseling programs that promote the academic achievement of all students. Prior research demonstrates that school counselors have reported high levels of multicultural competence. However, there is no evidence that this self-perceived competence translates into practice. The purpose of this phenomenological study was to explore the lived experiences of how practicing professional school counselors conceptualize multicultural competence and how they implement it into their work. To explore this topic, 12 practicing school counselors from a southeastern, urban school district participated in individual interviews, focus groups, and documents reviews. A research team analyzed …

Inter-Island Variability In Above And Belowground Plant Biomass In Interior Marshes On The Virginia Barrier Islands, Staci B. Blecha

Biological Sciences Theses & Dissertations

The Virginia Coast Reserve's Long Term Ecological Research (LTER) site is of great interest because the barrier islands have been migrating, rapidly at times, and are exceptionally dynamic. The barrier islands have tidal saltwater marshes on the lagoon side and freshwater marshes on the island interiors. In these interior marshes on North Hog Island, South Smith Island, and North Parramore Island, salinity and depth to water table were measured to determine if these factors were influencing biomass and biomass allocation patterns in the marsh. Hog Island had the freshest interior marshes (0 and 0.7 ppm), and the most diverse (H'=0.84 …

Ecological And Genetic Status Of The Purple Pitcher Plant, Sarracenia Purpurea L., In Maryland And Virginia, Philip M. Sheridan

Biological Sciences Theses & Dissertations

Sarracenia purpurea is a rare wetland plant in Virginia and a threatened species in Maryland, with two potential subspecies in the region. I utilized restriction fragments from the intron of the chalcone synthase gene to compare S. purpurea populations and determine whether the subspecies concept was supported. I performed a census of existing populations, compiled all known historical data on the species, and investigated the reasons for the species demise and predicted dates of extinction. Bloom phenology was examined to see if climate change may have influenced bloom period. Soil, vegetation, and climatic information was obtained to determine if taxonomic …

The Special Problem Of Cultural Differences In Effects Of Corporal Punishment, Jennifer E. Lansford

Law and Contemporary Problems

No abstract provided.

Parental Entitlement And Corporal Punishment, James G. Dwyer

Law and Contemporary Problems

No abstract provided.

Full Issue 5.1

Genocide Studies and Prevention: An International Journal

No abstract provided.

Technology-Supported Learning Innovation In Cultural Contexts, Jianwei Zhang

Educational Theory and Practice Faculty Scholarship

Many reform initiatives adopt a reductionist, proceduralized approach to cultural change, assuming that deep changes can be realized by introducing new classroom activities, textbooks, and technological tools. This article elaborates a complex system perspective of learning culture: A learning culture as a complex system involves macro-level properties (e.g., epistemological beliefs, social values, power structures) and micro-level features (e.g., technology, classroom activities). Deep changes in macro-level properties cannot be reduced to any component. This complex system perspective is applied to examining technology-supported educational change in East Asia and analyzing how teachers sustain the knowledge building innovation in different contexts. Working with …

The Devil In The Details: “Life Force Atrocities” And The Assault On The Family In Times Of Conflict, Elisa Von Joeden-Forgey

Genocide Studies and Prevention: An International Journal

This article introduces the idea of ‘‘life force atrocities’’ and investigates the role they have played in twentieth-century genocides, arguing that genocide is a gen- dered crime intimately associated with institutions of reproduction. Using exam- ples from established cases of genocide, such as the Armenian genocide, the Holocaust, Bosnia, and Rwanda, as well as from conflicts not generally under- stood as genocides, such as Sierra Leone and the Democratic Republic of Congo (DRC), the article outlines two types of life force atrocities that have been common features of these conflicts: inversion rituals and ritual desecrations. Each of these instances of …

Genocidal Intentions: Social Death And The Ex-Gay Movement, Sue E. Spivey, Christine M. Robinson

Genocide Studies and Prevention: An International Journal

In this article, the authors contribute to the literature on predicting and prevent- ing genocide in an international context, focusing on social death practices elabo- rated in articles II(b)–(e) of the 1948 United Nations Convention on the Prevention and Punishment of the Crime of Genocide (UNCG). Analyzing ex-gay movement texts, the authors apply James Waller’s theoretical framework, which explains how ordinary people commit extraordinary acts of brutality, to the rhetoric and public policy advocacy of prominent ex-gay movement organizations and entre- preneurs. Further, they examine the extent to which this new religious movement promotes public policies in the United States …

The Role Of Conservation Research And Education Centers In Growing Nature-Based Tourism, Richard C. Edwards, Eric Thompson

Department of Economics: Faculty Publications

There are increasing numbers of private (nonprofit and for-profit) centers that carry out conservation research and education in locations of environmental concern. Such centers generate revenue streams that directly support conservation programs and also sustain surrounding human communities. This paper assesses the size of the centers' economic impacts. We conducted separate studies of the economic impacts of the Cheetah Conservation Fund (Namibia) and (jointly) the Rowe Bird Sanctuary and Whooping Crane Trust (central Nebraska, USA). We collected data on direct expenditures and surveyed visitors and volunteers on their spending. For the Cheetah Conservation Fund, we estimate total economic impact using …

Female Mate Choice Based Upon Male Motor Performance, John Byers, Eileen Hebets, Jeffrey Podos

Eileen Hebets Publications

Our goal in this essay is to review the hypothesis that females choose mates by the evaluation of male motor performance. We define motor performance as vigor, the ability to perform energetically expensive acts repeatedly, or as skill, the ability to perform difficult motor tasks well. Motor performance reflects most aspects of whole-organism performance that relate to survival, and thus should indicate, more reliably than ornaments do, individual male genetic quality and/or developmental history. Male sexual displays in many animal taxa contain elements of vigor and/or skill, and accumulating evidence suggests that females choose mates in nature based upon their …

Silencing Of The Annexin Ii Gene Down-Regulates The Levels Of S100a10, C-Myc, And Plasmin And Inhibits Breast Cancer Cell Proliferation And Invasion, Jian Zhang, Bianqin Guo, Yan Zhang, Ju Cao, Tingmei Chen

Saudi Medical Journal

OBJECTIVE: To explore the roles of annexin II in breast cancer progression, and to study the effect of annexin II on breast cancer cell proliferation and invasion. METHODS: This study was conducted in the Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Chongqing Medical University, Chongqing, China from December 2006 to January 2009. First, we employed Western blot and reverse transcriptase polymerase chain reaction to detect the expression of annexin II and S100A10 in a panel of well-characterized human breast cancer cell lines, and investigated the localization of annexin II and S100A10 by use of immunofluorescence. We …

In Vivo Characterization Of Streptococcus Pneumoniae Genes Involved In The Pathogenesis Of Meningitis By Differential Fluorescence Induction, Wen-Chun Xu, Xue-Mei Zhang, Jiang-Ping Meng, Kai-Feng Wu, Hong Wang, Qing Zhao, Nan Li, Fang Cui, Xing-Hua Zhu, Ju Cao, Cao-Zhong Shu, You-Lan Shan, Yi-Bing Yin

Saudi Medical Journal

OBJECTIVE: To further understand the pathogenesis of pneumococcal meningitis, and provide some target candidates for the development of drugs. METHODS: This study was performed at the Department of Laboratory Medicine, Key Laboratory of Diagnostic Medicine (Ministry of Education), Chongqing Medical University, Chongqing, China from March 2006 to December 2007. A promoter-trap library of Streptococcus pneumoniae TIGR4, reported by green fluorescent protein was constructed, and used to infect BALB/c mice (n=15) intranasally, to set up a meningitis model. The control group (n=5) were inoculated with sterile phosphate buffered saline. The bacteria containing the promoter fusions induced only in meningitis brain tissue, …

Gastrointestinal Stromal Tumors In Western Saudi Arabia, Rana Y. Bokhary, Jaudah A. Al-Maghrabi

Saudi Medical Journal

OBJECTIVE: To determine the pattern of gastrointestinal stromal tumors (GIST) in the population of 2 large tertiary centers in the western province of the Kingdom of Saudi Arabia (KSA). METHODS: This retrospective study used cases diagnosed as GIST at the histopathology laboratories of King Abdul-Aziz University Hospital between January 2000 and October 2009, and King Faisal Specialist Hospital and Research Center, Jeddah, KSA, between January 2002 and December 2008. Additionally, cases diagnosed as gastrointestinal spindle cell tumors, sarcomas, schwannomas, leiomyomas, and leiomyosarcomas at King Abdul-Aziz University Hospital between January 1995 and December 1999 prior to the introduction of CD117 immunostain …

Using Proxy Measures And Other Correlates Of Survey Outcomes To Adjust For Non-Response: Examples From Multiple Surveys, Frauke Kreuter, Kristen M. Olson, James Wagner, Ting Yan, Trena M. Ezzati-Rice, Carolina Casas-Cordero, Michael Lemay, Andy Peytchev, Robert M. Groves, Trivellore E. Raghunathan

Department of Sociology: Faculty Publications

Non-response weighting is a commonly used method to adjust for bias due to unit non-response in surveys. Theory and simulations show that, to reduce bias effectively without increasing variance, a covariate that is used for non-response weighting adjustment needs to be highly associated with both the response indicator and the survey outcome variable. In practice, these requirements pose a challenge that is often overlooked, because those covariates are often not observed or may not exist. Surveys have recently begun to collect supplementary data, such as interviewer observations and other proxy measures of key survey outcome variables. To the extent that …

The Ontogeny Of Muscle Structure And Locomotory Function In The Long-Finned Squid Doryteuthis Pealeii, J. T. Thompson, I. K. Bartol, A. E. Baksi, P. S. Krueger

Biological Sciences Faculty Publications

Understanding the extent to which changes in muscle form and function underlie ontogenetic changes in locomotory behaviors and performance is important in understanding the evolution of musculoskeletal systems and also the ecology of different life stages. We explored ontogenetic changes in the structure, myosin heavy chain (MHC) expression and contractile properties of the circular muscles that provide power for jet locomotion in the long-finned squid Doryteuthis pealeii. The circular muscle fibers of newly hatched paralarvae had different sizes, shapes, thick filament lengths, thin: thick filament ratio, myofilament organization and sarcoplasmic reticulum (SR) distribution than those of adults. Viewed in …

Water Law In The Western United States, Susan Kelly

Publications

No abstract provided.

Finite Element Analysis And Modeling Of A .38 Lead Round Nose Ballistic Gelatin Test, Danielle Datoc

Master's Theses

Firearms are present in two-thirds of United States households. As of 2003, roughly 500,000 projectile wounds occur annually in the United States. This costs an estimated 2.3 billion dollars of medical spending. The best treatment of gunshot wounds relies heavily on experience, but even with experience the unpredictable nature of ballistics can make treatment difficult.

Wound ballistics studies the injury pattern of a particular bullet. Ballistic gelatin tests are used to analyze this pattern. A block of 10 or 20% ballistic gelatin is set and a bullet is fired through the block. Key characteristics of the wound profile seen in …

An Investigative Study Into The Relationship Of Bone Morphogenetic Protein Antagonist Expression And Osteocyte Density By Region And Quadrant, Scott C. Mosher

Master's Theses

The role of cytokines and cell behavior and viability with respect to bone remodeling and bone behavior is an exciting area of orthopedic research. The purpose of this study was to investigate the relationships between BMP antagonist expression and osteocyte density, lacunar densities and osteocyte viability in cortical bone. Samples of unloaded tibial bone obtained from six C57Bl/6 mice were immunohistochemically stained for gremlin and noggin expression and also underwent methyl green staining to determine osteocyte presence. Bone sections were divided into four quadrants (cranial, caudal, medial and lateral) and three regions (proximal, mid shaft and distal), followed by analysis …

Biomechanical Comparison Of Wire Circlage And Rigid Plate Fixation For Median Sternotomy Closure In Human Cadaver Specimens, Mark Steven Wong

Master's Theses

Background:

Over 700,000 patients per year undergo open-heart surgery. Healing complication rates can be up to 5% of patients who undergo this procedure, with a morbidity rate of 50% if mediastinitis supervenes. A secure and rigid fixation of surgically divided sternum is critical to avoid healing complications. The purpose of this study was to compare the yield load, construct stiffness, ultimate load, displacement at ultimate load, and post-yield behavior of three sternotomy closure methods (Peristernal wires or Sternalock titanium plates) when stressed in each of three directions: lateral distraction, rostro-caudal (longitudinal) shear distraction, and anterior-posterior (transverse) shear in a cadaveric …

High Tunnel Tomato Production, Dan Drost, Brent Black, Britney Hunter

All Current Publications

This publication provides instructions for growing tomatoes in a high tunnel tomato production and discusses the many benefits this method has opposed to field growing.

Legal, Moral And Biological Implications Of Poaching And Illegal Animal Trafficking On An International Scale, Meghan A. Pastor

Pell Scholars and Senior Theses

Poaching and animal trafficking is a global issue in the areas of biology, morality and politics. This paper will discuss the different areas of impact as well as consider options for the prevention and alleviation of this issue.