Digital Commons Network^™

Advance (Fall 2013), Georgia Southern Division Of Continuing And Professional Education

Division of Continuing & Professional Education

No abstract provided.

Cell Speed Is Independent Of Force In A Mathematical Model Of Amoeboidal Cell Motion With Random Switching Terms., J. C. Dallon, Emily J. Evans, Christopher Grant, William V. Smith

Faculty Publications

In this paper the motion of a single cell is modeled as a nucleus and multiple integrin based adhesion sites. Numerical simulations and analysis of the model indicate that when the stochastic nature of the adhesion sites is a memoryless and force independent random process, the cell speed is independent of the force these adhesion sites exert on the cell. Furthermore, understanding the dynamics of the attachment and detachment of the adhesion sites is key to predicting cell speed. We introduce a differential equation describing the cell motion and then introduce a conjecture about the expected drift of the cell, …

A Force Based Model Of Individual Cell Migration With Discrete Attachment Sites And Random Switching Terms, J. C. Dallon, Matthew Scott, William V. Smith

Faculty Publications

A force based model of cell migration is presented which gives new insight into the importance of the dynamics of cell binding to the substrate. The main features of the model are the focus on discrete attachment dynamics, the treatment of the cellular forces as springs, and an incorporation of the stochastic nature of the attachment sites. One goal of the model is to capture the effect of the random binding and unbinding of cell attachments on global cell motion. Simulations reveal one of the most important factor influencing cell speed is the duration of the attachment to the substrate. …

An Exploratory Investigation Of Marital Functioning And Order Of Spousal Onset In Couples Concordant For Psychopathology, Scott R. Braithwaite, Kimberly Van Orden, Mike Anestis, Katherine Merrill Timmons, Frank Fincham, Thomas E. Joiner Jr., Peter M. Lewinsohn

Faculty Publications

Individuals with a psychiatric disorder are significantly more likely to have a spouse with a clinical diagnosis—marital concordance. We used a community sample of 304 couples concordant for either Major Depressive Disorder (MDD) or Substance Use Disorders (SUDs) to examine the relationship between marital functioning and gendered patterns of mental health diagnosis onset. For SUD concordance, couples in which wives onset before husbands—in spite of typical later onset for males—reported lower levels of marital satisfaction compared to couples in which the husband onset first. For MDD concordance, couples in which husbands onset with depression before wives—in spite of typical later …

The Influence Of Pornography On Sexual Scripts And Hooking Up Among Emerging Adults In College, Scott R. Braithwaite, Gwen Coulson, Krista Keddington, Frank D. Fincham

Faculty Publications

The explosive growth in access to the Internet has led to a commensurate increase in the availability, anonymity, and affordability of pornography. An emerging body of research has shown associations between pornography and certain behaviors and attitudes; yet, how pornography actually influences these outcomes has not been documented. In two studies (Study 1N=969; Study 2N=992) we examined the hypothesis that pornography influences potentially risky sexual behavior (hooking up) among emerging adults via sexual scripts. Our results demonstrate that more frequent viewing of pornography is associated with a higher incidence of hooking up and a higher number of unique hook up …

Orientocreadium Batrachoides Tubangui, 1931 (Orientocreadiidae): The Only Trematode Parasite Of Clarias Gariepinus (Burchell, 1822) (Clariidae) From The Asi River (Southern Turkey), Tayha Tepe, Mehmet Cemal Oğuz, Mark C. Belk, Remzi Özgen

Faculty Publications

Objective: Some information is available about the parasite fauna and incidence for Clarias gariepinus in Turkey, but digenean parasites have received little attention. The purpose of the study is to contribute to the parasite fauna of Turkey.

Methods: From 2007 to 2008, a total 63 Clarias gariepinus that were caught in the Asi River were purchased from the fish market in Hatay and brought on ice to the Parasitology Research Laboratory at Atatürk University. The fish were dissected. The obtained parasites were fixed with AFA, dyed with Mayer’s Carmalum, and mounted with Canada Balsam.

Results: Forty-eight fish were infected with …

Prediction Of Sawdust Pyrolysis Yields From A Flat-Flame Burner Using The Cpd Model, Aaron D. Lewis, Thomas H. Fletcher

Faculty Publications

High heating rate pyrolysis experiments were performed on a softwood sawdust in a flat-flame burner reactor at temperatures from 1163 to 1433 K with particle residence times ranging from 23 to 102 ms at atmospheric pressure. Volatile yields of the 45−75 μm sawdust were measured and are believed to be similar to those that would occur in an industrial entrained-flow combustor or gasifier. A refractory tar yield near 1.5 wt % (dry, ash-free) was measured. A high percentage of the fully pyrolyzed sawdust char was spherical, having lost the original sawdust structure. It is suggested that the morphology of sawdust …

The Effects Of Practice On The Concurrent Performance Of A Speech And Postural Task In Persons With Parkinson Disease And Healthy Controls, Christopher Dromey, K Bo Foreman, Stuart Sondrup, Eon Jarvis, Shawn Nissen, Leland E. Dibble

Faculty Publications

Purpose. Persons with Parkinson disease (PD) demonstrate deficits in motor learning as well as bidirectional interference (the performance of one task concurrently interferes with the performance of another task) during dual-task performance. Few studies have examined the practice dosages necessary for behavioral change in rehabilitation relevant tasks. Therefore, to compare the effects of age and PD on motor learning during dual-task performance, this pilot study examined persons with PD as well as neurologically healthy participants during concurrent performance of postural and speaking tasks. Methods. Seven persons with PD and 7 healthy age-matched and 10 healthy young control subjects were tested …

No One Best Way: Work-Family Strategies, The Gendered Division Of Parenting, And The Contemporary Marriages Of Mothers And Fathers, W. Bradford Wilcox, Jeffrey P. Dew

Faculty Publications

The gender revolution of the last half-century has dramatically reshaped the nature, quality, and stability of marriage and parenthood in the United States. A half-century ago, most married mothers did not work outside the home, and most men and women preferred this arrangement. But over the course of the second half of the twentieth century, mothers streamed into the labor force, fathers devoted more time to childcare and housework, and public opinion largely swung behind these changes, with most Americans expressing normative support for working mothers, as well as for more egalitarian relationships between mothers and fathers in the home …

The Biology And Taxonomy Of Head And Body Lice— Implications For Louse-Borne Disease Prevention, Denise L. Bonilla, Lance A. Durden, Marina E. Eremeeva, Gregory A. Dasch

Environmental Health Sciences: Faculty Publications

Sucking lice (Phthiraptera: Anoplura) are obligate blood-feeding ectoparasites of placental mammals including humans. Worldwide, more than 550 species have been described and many are specific to a particular host species of mammal [1]. Three taxa uniquely parasitize humans: the head louse, body louse, and crab (pubic) louse. The body louse, in particular, has epidemiological importance because it is a vector of the causative agents of three important human diseases: epidemic typhus, trench fever, and louse-borne relapsing fever. Since the advent of antibiotics and more effective body louse control measures in the 1940s, these diseases have markedly diminished in incidence. However, …

The Impact Of Religious Commitment And Motivation On African American Male Academic Achievement, Beverly Cabble Logan

College of Graduate Studies: Theses & Dissertations

The purpose of this mixed method, pragmatic, research study was to determine, from successful African American college age students, what influences have contributed to their academic success. Quantitative data were collected using two survey instruments, the Religious Commitment Inventory (RCI-10) and a researcher created demographic instrument for data collection. Qualitative data were collected through five researcherconducted focus group discussions with 10 African American students enrolled in a four year university located in the southeast region of the United States. The guiding questions were: How does religious commitment impact academic achievement among minority male college students? What relationship exists between religious …

Powerful Print: Identifying The Influence Of Narrative Reading Over Student's Opinion Formation, Sarah A. Lord

College of Graduate Studies: Theses & Dissertations

This study examined the ways in which reading works of fiction affects the formation of student’s opinions and attitudes by using literature circles discussions and journal writing. It uses Louise Rosenblatt’s (1938) Reader Response Theory supported by Lev Vygotsky’s (1962) writings about the social dynamics of language development. Methodologically I followed the example of literature circles set forth by Janice Almasi and Linda Gambrell (1994, 1995).

Participants were fifth grade students in a rural South Georgia elementary school who participated during the 2010-2011 school year. The students participated in small peer-led discussion groups. The students chose the books they would …

The Tick Genus Amblyomma In Africa: Phylogeny And Mutilocus Dna Barcoding, Omobolanle Kushimo

College of Graduate Studies: Theses & Dissertations

The tick genus Amblyomma includes approximately 130 species, 28 of which are found on the African continent and/ or in Madagascar. In order to understand the evolutionary phylogeography of the genus, it is necessary to gain a better understanding of the relationships between African taxa. Therefore, the main goals of this work were to, (1) reconstruct the phylogenetic relationships of the African Amblyomma available to us and (2) test markers for their usefulness as barcoding tools to link unknown immature specimens to their corresponding adults. The mitochondrial gene markers used in this study (12SrDNA and COI) did not resolve the …

Impedance Changes In Biceps Brachii Due To Isometric Contractions And Muscle Fatigue Using Electrical Impedance Myography (Eim), Travis Orth

College of Graduate Studies: Theses & Dissertations

Electrical impedance myography (EIM) is a non-invasive technique used to evaluate neuromuscular conditions by using a quantitative parameter called impedance (Z). It relies upon the application and measurement of high-frequency, low-intensity electrical current imbedded over a localized muscle to determine its opposition to current flow. In brevity, impedance determines the resistance of muscle fibers due to changes in muscle composition. The objective of this thesis was to establish a relationship between muscles at rest and during isometric contractions at various force levels(25%, 50%, and 100% of maximum voluntary contraction) of the biceps brachii over a multifrequency spectrum. Impedance measurements due …

Reimagining The Liberal Arts In An Age Of Technoscientific Progress, Melanie Moore Watson

College of Graduate Studies: Theses & Dissertations

The following study will investigate the impact of dismantling liberal arts curriculum during an era of dramatic technoscientific progress. I will explore the development of the posthuman focusing specifically on the areas of virtual reality and biomedicine. As I unravel the implications that virtual reality and biomedicine will have on society in the coming decades, I will describe how a new liberal arts curriculum must be entertained by educators in order to maintain innovation, play, and ethical considerations in posthuman developments. In order for our students to become contributing members of a global community, they must be given the opportunity …

Perceptions Of Mentoring: Examining The Experiences Of Women Superintendents In Georgia, Scarlett Copeland

College of Graduate Studies: Theses & Dissertations

The number of women superintendents working in Georgia public schools exceeds the national average, but unfortunately, when compared to the number of men in the same position, women are not as well represented. This gap between female and male superintendents, and the reasons why this disparity exist, has been the subject of many research studies. One possible explanation for this phenomenon is a lack of mentoring for women superintendents.

This descriptive mixed methods study gathered both quantitative and qualitative data on the mentoring experiences of women superintendents in Georgia. The quantitative participants in this study included 39 women superintendent in …

Variation In Population Densities Of The Florida Scrub Lizard (Sceloporus Woodi) Between Managed Sand Pine Scrub And Longleaf Pine Stands In The Ocala National Forest, Matthew D. Kaunert

College of Graduate Studies: Theses & Dissertations

Population-level response to habitat fragmentation is central to applied species management and conservation. Managed landscapes are often subject to increased fragmentation and, consequently, may force once connected populations to function as metapopulations. Studies investigating metapopulations occurring over patchy, managed landscapes are of increasing importance as fragmentation is a known cause of biodiversity loss. In June-September 2012, populations of the rare, endemic Florida scrub lizard (Sceloporus woodi) were sampled across the Ocala National Forest (ONF) to compare abundance and density across two management types. In the ONF, sand-pine scrub is clearcut and rollerchopped whereas longleaf pine is managed via …

Effects Of Site Preparation, Seed Germination, And Harvest Maturity On Wiregrass Restoration Efforts At Fort Stewart, Ga, Nickey Garrett Anderson

College of Graduate Studies: Theses & Dissertations

Wiregrass (Aristida stricta Michx.) was once the dominant ground cover species within the Atlantic Coastal Plain longleaf pine (Pinus palustris Mill.) ecosystem. Less than 1 million hectares of intact longleaf pine-wiregrass communities remain, due primarily to anthropogenic activities. Wiregrass is a keystone species in the longleaf pine ecosystem, as its presence facilitates the natural fire regime, a critical component in the perpetuation of these communities. Therefore, there is increased interest in wiregrass restoration in both existing longleaf pine communities and future longleaf pine restoration sites. Many restoration sites are on tracts that have been cleared of all vegetation. Removal of …

Marker Characterization Of Ecp-Induced Monocyte-Derived Dendritic Cells, Kristina Liu

Yale Medicine Thesis Digital Library

Extracorporeal photopheresis (ECP) in the treatment of cutaneous T-cell lymphoma, GVHD and autoimmune conditions continues to spur the question of how ECP is capable of inducing immunogenicity and tolerance. We previously demonstrated that ECP treatment leads to large-scale conversion of peripheral blood monocytes into functionally competent leukocytes with dendritic cell phenotypes, which may play key roles in the immunomodulatory capabilities of ECP. To characterize this population of cells on a molecular level, we assessed for differential surface expression of selected gene-products on monocytes after treatment with a model-ECP apparatus. Five gene-products (CXCL16, SIRPa, ICAM1, TNFR1, PLAUR) showed significant increases in …

A Survey Of The Legal Landscape Facing Entities With Patents Reciting A Method Of Using A Medical Device, Rigel Menard

Cybaris®

No abstract provided.

News In Cyberspace: The Creation Of The New Ignorance, Ronald Charles Griffin

Journal Publications

Computers are dummying us down. Book learning has given way to computer speak. Modern technology overwhelms us. Users are enthralled with gadgets to the point where they have lost themselves in them. We have abandoned, perhaps mislaid, our sense for ignorance; what it means to be illiterate in the 21st century; and working definitions for truth. In this environment a dab of education (enough to make somebody lethal), a sprinkle of bigotry, and fear produce people with ideas that are bad for us. This essay cautions against trucking with those folk; it marks what they do in the media that …

Nutrient Supply In The Southern East China Sea After Typhoon Morakot, Chin-Chang Hung, Chih-Ching Chung, Gwo-Ching Gong, Sen Jan, Yaling Tsai, Kuo-Shu Chen, Wen Chen Chou, Ming-An Lee, Yi Chang, Meng-Hsien Chen, Wen-Rong Yang, Chiung-Jung Tseng, Glen Gawarkiewicz

Journal of Marine Research

Recent studies show that typhoons have profound effects on phytoplankton assemblages along their tracks, but it is difficult to quantitatively estimate nutrient supply after a typhoon's passage due to a lack of nutrient information before and after the arrival of a typhoon. During the passage of Typhoon Morakot (July 22 to Aug. 26, 2009), we conducted pre- and post-typhoon field cruises to study nutrient supply in the Southern East China Sea (SECS). The results showed nitrate and phosphate supplies to the water column in the SECS after the typhoon's passage were 5.6 × 10¹¹ g-N/day and 7.8 × 10 …

Preventing Human Trafficking And Sexual Exploitation Of Women And Girls: Proposed Modifications To Cedaw And The Un Trafficking Protocol, Yesenia Lelani Rodriguez

Student Works

No abstract provided.

Other Uses Of Legislative History, Mary Whisner

Librarians' Articles

Although we usually think of using legislative history to determine legislative intent when interpreting statutes, Ms. Whisner shows that legislative documents can be useful for other, less controversial purposes as well.

Ltc Newsletter, University Of Dayton. Ryan C. Harris Learning Teaching Center

LTC Newsletter

Spring 2013

A Machine Learning Approach To Diagnosis Of Parkinson’S Disease, Sumaiya F. Hashmi

CMC Senior Theses

I will investigate applications of machine learning algorithms to medical data, adaptations of differences in data collection, and the use of ensemble techniques.

Focusing on the binary classification problem of Parkinson’s Disease (PD) diagnosis, I will apply machine learning algorithms to a primary dataset consisting of voice recordings from healthy and PD subjects. Specifically, I will use Artificial Neural Networks, Support Vector Machines, and an Ensemble Learning algorithm to reproduce results from [MS12] and [GM09].

Next, I will adapt a secondary regression dataset of PD recordings and combine it with the primary binary classification dataset, testing various techniques to consolidate …

Uses Of Phage Display In Agriculture: A Review Of Food-Related Protein-Protein Interactions Discovered By Biopanning Over Diverse Baits, Rekha Kushwaha, Christina M. Payne, A. Bruce Downie

Horticulture Faculty Publications

This review highlights discoveries made using phage display that impact the use of agricultural products. The contribution phage display made to our fundamental understanding of how various protective molecules serve to safeguard plants and seeds from herbivores and microbes is discussed. The utility of phage display for directed evolution of enzymes with enhanced capacities to degrade the complex polymers of the cell wall into molecules useful for biofuel production is surveyed. Food allergies are often directed against components of seeds; this review emphasizes how phage display has been employed to determine the seed component(s) contributing most to the allergenic reaction …

A Single-Parameter Model Of The Immune Response To Bacterial Invasion, Lester Caudill

Department of Math & Statistics Faculty Publications

The human immune response to bacterial pathogens is a remarkably complex process, involving many different cell types, chemical signals, and extensive lines of communication. Mathematical models of this system have become increasingly high-dimensional and complicated, as researchers seek to capture many of the major dynamics. In this paper, we argue that, in some important instances, preference should be given to low-dimensional models of immune response, as opposed to their high-dimensional counterparts. One such model is analyzed and shown to reflect many of the key phenomenological properties of the immune response in humans. Notably, this model includes a single parameter values, …

The Invention Of The Native Speaker, Thomas Paul Bonfiglio

Languages, Literatures, and Cultures Faculty Publications

This paper argues that employing the designations “native speaker” and “native language” unreflectively is to engage in a gesture of othering that operates on an axis of empowerment and disempowerment. Bonfiglio examines the ideological legacy of the apparently innocent kinship metaphors of “mother tongue” and “native speaker” by historicizing their linguistic development. He traces the construction of ethnolinguistic nationalism, a composite of national language, identity, geography, and race, which informed the philology of the early modern era and culminated most divisively in the race-conscious discourses of the 19th century. Bonfiglio makes the case that scholarship should scrutinize the tendency to …

Mormonism And The Family (Forum), Terryl Givens

English Faculty Publications

When we speak of the family in Mormonism, the term can mean many things. There is an idealized Mormon family, the one described in church magazines, General Conference talks, and Mormon public service commercials. There is the family of the Mormon theological tradition, stretching endlessly off into the eternities, bound together with temple ordinances, the forever family of Mormon bumper stickers. There is another family, product of a more speculative bent in Mormon theology, which comes of an eschatological reading of the Abrahamic covenant, and which imputes to a temple-sealed Mormon couple the right to an endless seed, a posterity …