Digital Commons Network^™

Neurocognitive Correlates Of Body Image Disturbance, Elizabeth Frei

Electronic Theses and Dissertations

Body image, broadly defined as an individual's general experience of his or her physical appearance, is a multidimensional phenomenon that has been found to affect functioning throughout the lifetime. Although some degree of dissatisfaction has been found to be a common aspect of the female experience, research suggests that a disturbance in body image can result in a number of clinical complications, particularly the development of an eating disorder (ED). Despite the relationship between body image and EDs, examinations of the cognitive underpinnings of the relationship between body image disturbance and EDs are relatively few and inconclusive. Research indicates that …

In-Situ Gas Phase Catalytic Properties Of Metal Nanoparticles, Luis Ono

Electronic Theses and Dissertations

Recent advances in surface science technology have opened new opportunities for atomic scale studies in the field of nanoparticle (NP) catalysis. The 2007 Nobel Prize of Chemistry awarded to Prof. G. Ertl, a pioneer in introducing surface science techniques to the field of heterogeneous catalysis, shows the importance of the field and revealed some of the fundamental processes of how chemical reactions take place at extended surfaces. However, after several decades of intense research, fundamental understanding on the factors that dominate the activity, selectivity, and stability (life-time) of nanoscale catalysts are still not well understood. This dissertation aims to explore …

A Multivariate Model Of Parent-Adolescent Relationship Variables In Early Adolescence, Cliff Mckinney

Electronic Theses and Dissertations

The purpose of this study is to examine a multivariate model of parent-adolescent relationship variables, including parenting, family environment, expectations and conflict. These variables are examined simultaneously to investigate their relationships with adolescent adjustment in early adolescence. The sample for the current study consists of 710 culturally diverse participants who range in age from 11- to 14-years and who attend a middle school in a Southeastern state. Of these participants, 487 have a mother and father who participated in this study as well. Correlation analyses indicate that parental warmth and overprotection, family cohesion and adaptability, developmental expectations, and conflict are …

Optical Nonlinear Interactions In Dielectric Nano-Suspensions, Ramy El-Ganainy

Electronic Theses and Dissertations

This work is divided into two main parts. In the first part (chapters 2-7) we consider the nonlinear response of nano-particle colloidal systems. Starting from the Nernst-Planck and Smoluchowski equations, we demonstrate that in these arrangements the underlying nonlinearities as well as the nonlinear Rayleigh losses depend exponentially on optical intensity. Two different nonlinear regimes are identified depending on the refractive index contrast of the nanoparticles involved and the interesting prospect of self-induced transparency is demonstrated. Soliton stability is systematically analyzed for both 1D and 2D configurations and their propagation dynamics in the presence of Rayleigh losses is examined. We …

Gabor Domain Optical Coherence Microscopy, Supraja Murali

Electronic Theses and Dissertations

Time domain Optical Coherence Tomography (TD-OCT), first reported in 1991, makes use of the low temporal coherence properties of a NIR broadband laser to create depth sectioning of up to 2mm under the surface using optical interferometry and point to point scanning. Prior and ongoing work in OCT in the research community has concentrated on improving axial resolution through the development of broadband sources and speed of image acquisition through new techniques such as Spectral domain OCT (SD-OCT). In SD-OCT, an entire depth scan is acquired at once with a low numerical aperture (NA) objective lens focused at a fixed …

Femtosecond Laser Written Volumetric Diffractive Optical Elements And Their Applications, Jiyeon Choi

Electronic Theses and Dissertations

Since the first demonstration of femtosecond laser written waveguides in 1996, femtosecond laser direct writing (FLDW) has been providing a versatile means to fabricate embedded 3-D microstructures in transparent materials. The key mechanisms are nonlinear absorption processes that occur when a laser beam is tightly focused into a material and the intensity of the focused beam reaches the range creating enough free electrons to induce structural modification. One of the most useful features that can be exploited in fabricating photonic structures is the refractive index change which results from the localized energy deposition. The laser processing system for FLDW can …

Epigenetic Control Mechanisms In Somatic Cells Mediated By Dna Methyltransferase 1, Bongyong Lee

Electronic Theses and Dissertations

DNA methylation regulates gene expression through a complex network of protein/protein and protein/DNA interactions in chromatin. The maintenance methylase, DNA methyltransferase 1 (DNMT1), is a prominent enzyme in the process that is linked to DNA replication and drives the heritable nature of epigenetic modifications in somatic cells. The mechanistic details that explain how DNMT1 catalytic action is directed in a chromatin setting are not well understood. We hypothesize that post translational modifications and a variety of protein-protein interactions processes are key regulatory elements that set the methylation of CpG elements essential for normal growth behavior in somatic cells. These fundamental …

Boreal Forest Fire Impacts On Lower Troposphere Carbon Monoxide And Ozone Levels At The Regional To Hemispheric Scales, Kateryna Lapina

Dissertations, Master's Theses and Master's Reports - Open

Tropospheric ozone (O3) and carbon monoxide (CO) pollution in the Northern Hemisphere is commonly thought to be of anthropogenic origin. While this is true in most cases, copious quantities of pollutants are emitted by fires in boreal regions, and the impact of these fires on CO has been shown to significantly exceed the impact of urban and industrial sources during large fire years. The impact of boreal fires on ozone is still poorly quantified, and large uncertainties exist in the estimates of the fire-released nitrogen oxides (NO _x ), a critical factor in ozone production. As boreal fire activity is …

Development Of Measurement And Modeling Techniques To Quantify Atmospheric Deposition Of Persistent, Bioaccumulative And Toxic Chemicals In The Great Lakes, Mark D. Rowe

Dissertations, Master's Theses and Master's Reports - Open

Measurement and modeling techniques were developed to improve over-water gaseous air-water exchange measurements for persistent bioaccumulative and toxic chemicals (PBTs). Analytical methods were applied to atmospheric measurements of hexachlorobenzene (HCB), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs). Additionally, the sampling and analytical methods are well suited to study semivolatile organic compounds (SOCs) in air with applications related to secondary organic aerosol formation, urban, and indoor air quality.

A novel gas-phase cleanup method is described for use with thermal desorption methods for analysis of atmospheric SOCs using multicapillary denuders. The cleanup selectively removed hydrogen-bonding chemicals from samples, including much of …

Evidence For Multiple Paternity In Broods Of The Green Lynx Spider Peucetia Viridans (Araneae: Oxyopidae), Martina G. Ramirez

Biology Faculty Works

In the green lynx spider Peucetia viridans (Hentz 1832), the two openings of a mated female’s epigynum are often sealed by copulatory plugs, sometimes with the two-pronged distal portion of the paracybium of a male palpus inserted in each opening and embedded in the plugs. The presence of copulatory plugs and paracymbia may prevent further mating by the female. However, not all mated females exhibit these structures, perhaps allowing some P. viridans females to mate with more than one male, despite the assertion of Whitcomb & Eason (1965) that females only mate once. We investigated this possibility by surveying the …

The Evolution Of Photoperiodic Response Systems And Seasonal Gnrh Plasticity In Birds, Heather E. Watts

Biology Faculty Works

Animals’ lives are typically subdivided into distinct stages, some of which (e.g. breeding) contribute to fitness through enhancing current reproductive success, and some of which (e.g. molting and migration in birds; hibernation in mammals) contribute to fitness through enhancing survival and, therefore, future reproductive opportunities. There is often a trade-off between these two kinds of processes, either because they are temporally incompatible with one another (e.g. migration precludes simultaneous nesting in birds) or because they are energetically incompatible with one another (e.g. successful molting appears to be incompatible with simultaneous nesting in many birds). Consequently, adaptations facilitating appropriate timing and …

Not Your Mother's Latinas : Film Representations For A New Millennium, Jeannie Ann Patrick

Dissertations, Master's Theses and Master's Reports - Open

This dissertation seeks to contribute to film, feminist and Latino/a studies by exploring the construction and ideological implications of representations of Latinas in four recent, popular U.S. films: Girlfight (Kusama 2000), Maid in Manhattan (Wang 2002), Real Women Have Curves (Cardoso 2002) and Spanglish (Brooks 2004). These films were released following a time of tremendous growth in the population and the political and economic strength of the Latina/o community as well as a rise in popularity and visibility in the 1990s of entertainers like Selena and actresses such as Jennifer Lopez and Salma Hayek. Drawing on the critical concepts of …

Quantifying The Ecological Benefits Of Lakeshore Restoration In Northern Wisconsin, Daniel E. Haskell

Dissertations, Master's Theses and Master's Reports - Open

Housing development has increased dramatically in the Midwest with a high concentration around lakes. This development plays an important role in the economy of Northwoods communities. However, poorly planned development has the potential to alter a lake’s ecological processes and integrity. Studies have documented the impacts of housing developments and reported dramatic, negative changes to the flora and fauna in Vilas County, Wisconsin. One component of my research included examining the previously unstudied effects of residential development on the abundance and diversity of medium to large-bodied mammals using lakeshore ecosystems. The results suggest that a higher diversity of mammals were …

Determining The Role Of Environmental Factors And Disturbance In The Distribution Of Reed Canary Grass Within Wetlands, Kathryn M. Marlor

Dissertations, Master's Theses and Master's Reports - Open

Reed canary grass (Phalaris arundinacea L.) is an invasive species originally from Europe that has now expanded to a large range within the United States. Reed canary grass possesses a number of traits that allow it to thrive in a wide range of environmental factors, including high rates of sedimentation, bouts of flooding, and high levels of nutrient inputs. Therefore, the goals of our study were to determine if 1) certain types of wetland were more susceptible to Reed canary grass invasion, and 2) disturbances facilitated Reed canary grass invasion.

This study was conducted within the Keweenaw Bay Indian …

Effects Of Pediatric Adiposity On Heart Rate Variability, Angela K. Lucas

Dissertations, Master's Theses and Master's Reports - Open

The relationship between obesity and heart rate variability (HRV) has been studied in adults and adolescents, but is not determined in young pediatrics. The purpose of this study was to assess autonomic activity using HRV in a pediatric population. We hypothesized that obese children would have reduced parasympathetic and increased sympathetic activity compared to age-matched subjects. 42 pediatric subjects (ages 3-5) were classified into 3 groups based on body mass index-for-age; normal, overweight and obese. HRV and respiratory rate were recorded during 3 minute baseline, 2 minute isometric handgrip and 3 minute recovery. HRV was analyzed in the time domain …

Identifying Indicators Of Sustainable Development Using The Global Sustainability Quadrant Approach , Andres B. Tarte

Dissertations, Master's Theses and Master's Reports - Open

Advances in information technology and global data availability have opened the door for assessments of sustainable development at a truly macro scale. It is now fairly easy to conduct a study of sustainability using the entire planet as the unit of analysis; this is precisely what this work set out to accomplish.

The study began by examining some of the best known composite indicator frameworks developed to measure sustainability at the country level today. Most of these were found to value human development factors and a clean local environment, but to gravely overlook consumption of (remote) resources in relation …

Assessment Of A High School Geological Field Course, Eric Morgan Ruckert

Dissertations, Master's Theses and Master's Reports - Open

Fieldwork is supportive of students’ natural inquiry abilities. Educational research findings suggest that instructors can foster the growth of thinking skills and promote science literacy by incorporating active learning strategies (McConnel et al, 2003). Huntoon (2001) states that there is a need to determine optimal learning strategies and to document the procedure of assessing those optimal geoscience curricula. This study seeks to determine if Earth Space II, a high school geological field course, can increase students’ knowledge of selected educational objectives. This research also seeks to measure any impact Earth Space II has on students’ attitude towards science.

Assessment of …

Me-Em 2009 Annual Report, Department Of Mechanical Engineering-Engineering Mechanics, Michigan Technological University

Department of Mechanical and Aerospace Engineering Annual Reports

Table of Contents

• Energy Systems
• Health Systems
• Faculty & Staff
• Students
• Alumni
• Resources
• Graduates
• Publications
• ME-EM Community

Yeast Telomere Capping Protein Stn1 Overrides Dna Replication Control Through The S Phase Checkpoint, Hovik J. Gasparyan

Biology Faculty Works

Telomere integrity is maintained through end-protection proteins that block nuclease degradation and prevent telomeres from being recognized as DNA breaks. Although less well understood, end protection proteins may also play a role in facilitating telomere replication. Here, we show that overproduction (OP) of the yeast telomere capping protein Stn1 makes cells highly sensitive to the replication inhibitors hydroxyurea (HU) and methyl-methane sulfonate (MMS). Unexpectedly, this sensitivity corresponds with Stn1 OP blocking most, if not all, aspects of the S phase checkpoint. The checkpoint kinase Rad53 is phosphorylated with normal timing in Stn1 OP cells, indicating Stn1 does not interfere with …

Ten1 Is Essential For Cdc13-Mediated Telomere Capping, Hovik J. Gasparyan

Biology Faculty Works

Telomere binding proteins protect chromosome ends from degradation and mask chromosome termini from checkpoint surveillance. In Saccharomyces cerevisiae, Cdc13 binds single-stranded G-rich telomere repeats, maintaining telomere integrity and length. Two additional proteins, Ten1 and Stn1, interact with Cdc13 but their contributions to telomere integrity are not well defined. Ten1 is known to prevent accumulation of aberrant single-stranded telomere DNA; whether this results from defective end protection or defective telomere replication is unclear. Here we report our analysis of a new group of ten1 temperature-sensitive (ts) mutants. At permissive temperatures, ten1-ts strains display greatly elongated telomeres. After shift to nonpermissive conditions, …

Coywolf, Canis Latrans × Lycaon, Pack Density Doubles Following The Death Of A Resident Territorial Male, Eric Strauss

Biology Faculty Works

We studied a subset of four radio-collared individuals that were a part of a larger study documenting Coywolf (Canis latrans × lycaon; Eastern Coyote) ecology in an urbanized landscape (Cape Cod, Massachusetts), and report on the territory of a typical sized pack that was subdivided roughly in half following the death of the breeding male from the original (" Centerville") pack. The original residents lived in a winter pack size (i.e., after pup/juvenile dispersal) of three or four individuals in a 19.66 km territory and a density of 0.15-0.20 individuals/km , as determined by radio-tracking and direct observations, with their …

Modeling Integrated Decisions For A Municipal Water System With Recourse And Uncertainties: Amman, Jordan, David E. Rosenberg, Jay Lund

Civil and Environmental Engineering Faculty Publications

Stochastic mixed-integer optimization is used to identify a portfolio of long- and short-term supply and conservation actions for a municipal water system to cost-effectively accommodate a distribution of water shortages. Alternative robust, grey-number, and best/worst case formulations systematically explore implications of uncertainties in action costs, life spans, water volumes gained or saved, shortage levels, and shortage probabilities. A detailed example for Amman, Jordan considers 23 potential actions. Results show: (1) remarkable consistency occurs across the different modeling approaches. (2) Conserving water—reducing leakage and targeting select customers to install water efficient appliances—plays an important and growing role over time. (3) A …

Chronically Ill Midlife And Older Lesbians, Gay Men, And Bisexuals And Their Informal Caregivers: The Impact Of The Social Context, Karen Fredriksen-Goldsen, Hyun-Jun Kim, Anna M. Muraco, Shawn Mincer

Sociology Faculty Works

With the exception of HIV care, informal caregiving of chronically ill lesbian, gay, and bisexual (LGB) adults has received very limited attention in the extensive caregiving literature. This article reports on research that considered the social context of care and a dyadic caregiving approach for 36 chronically ill LGB adults ages 50 and older and their informal caregivers. In this study, both discrimination and relationship quality were associated with depression among chronically ill LGB adults and their caregivers. Furthermore, preliminary findings suggested that relationship quality moderates the impact of discrimination as a risk factor for depression in chronically ill LGB …

Graduate Studies Fact Book

Graduate Studies Fact Books (2006-2017)

No abstract provided.

2009 Georgia Southern University Men's Soccer Media Guide, Georgia Southern University

Men's Soccer Records

• Media Guide

Undergraduate And Graduate Catalog [2008-2009], Georgia Southern University

Undergraduate & Graduate Catalogs

No abstract provided.

An Algorithm For Identifying Novel Targets Of Transcription Factor Families: Application To Hypoxia-Inducible Factor 1 Targets, Yue Jiang, Bojan Cukic, Donald A. Adjeroh, Heath D. Skinner, Jie Lin, Qingxi J. Shen, Bing-Hua Jiang

Electrical & Computer Engineering Faculty Research

Efficient and effective analysis of the growing genomic databases requires the development of adequate computational tools. We introduce a fast method based on the suffix tree data structure for predicting novel targets of hypoxia-inducible factor 1 (HIF-1) from huge genome databases. The suffix tree data structure has two powerful applications here: one is to extract unknown patterns from multiple strings/sequences in linear time; the other is to search multiple strings/sequences using multiple patterns in linear time. Using 15 known HIF-1 target gene sequences as a training set, we extracted 105 common patterns that all occur in the 15 training genes …

Model For Alumina Nanopore-Based Optical Filter, Nathan Lehman, Rama Venkat, Robert A. Schill

Electrical & Computer Engineering Faculty Research

Alumina nanopore structures find applications in magnetic sensors, optical filters, and various biological devices. In this work, we present a ray-optics model for the optical filter. We present a detailed simulation and a simplified analytical expression for the reflectance as a function of the alumina parameters such as pore diameter, pore density, alumina thickness, and a function of the wavelength and angle of incidence of the illuminating plane electromagnetic wave. The reflectance vs wavelength in the range of 400–800nm obtained from the simulation and the analytical expression are compared with that of the experiments for thin and thick alumina. All …

Proximate Composition, Chlorophyll A, And Carotenoid Content In Dunaliella Salina (Dunal) Teod (Chlorophycea: Dunaliellaceae) Cultured With Cost-Effective Seaweed Liquid Fertilizer Medium, Raghavan Gireesh

Turkish Journal of Botany

Growth, proximate composition, chlorophyll a, and carotenoid content were estimated in static cultures of micro alga Dunaliella salina (Dunal) Teod (Chlorophycea: Dunaliellaceae) to compare the quality and quantity of biomass produced with seaweed liquid fertilizer (SLF) against Walne´s medium. Culture of micro algae was performed with controlled temperature of 27 ± 1 °C, salinity of 33, and an irradiance of 120 ± 3 µ mol m^{-2} s^{-1}, and daily samples were taken to estimate the above-mentioned parameters. Mean cellular density from samples of both medium were similar and growth rates were 0.44 and 0.42 doubling per day, respectively. Maximum values …

A New Centaurea L. (Asteraceae) Species From Turkey, Tuna Uysal, Yavuz Bülent Köse

Turkish Journal of Botany

A new Centaurea L. (Asteraceae) species from Turkey is described and illustrated. Centaurea dursunbeyensis Uysal & Köse exists on limestone crevices in ancient Dursunbey Forest (Balikesir) in western Anatolia. It belongs to C. sect. Phalolepis (Cass.) DC., and taxonomically its closest relatives are C. aphrodisea Boiss. and C. cadmea Boiss. Diagnostic morphological characters from very similar taxa are provided, and a key is provided that includes related species of sect. Phalolepis from Turkey. The geographical distribution of the new species and species of other related taxa of the same section are mapped. The chromosome number of C. dursunbeyensis, 2n = …