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Dahlonega, GA, United States

The University of North Georgia is an educational institution that was established by the University System of Georgia Board of Regents on January 8, 2013, as a result of the consolidation of North Georgia College & State University and Gainesville State College. The consolidation of the two schools was announced on January 10, 2012, and the name of the new school was announced on May 8, 2012. The Southern Association of Colleges and Schools approved the consolidation December 11, 2012. The combined institution has campus locations in Dahlonega, Oakwood , Watkinsville , and Cumming.With just over 15,000 enrolled students, the University of North Georgia is the seventh largest public university in the state of Georgia. Within UNG, there are five colleges which collectively offer over one hundred bachelor's and associate degrees, as well as thirteen masters degrees and one doctoral degree. More than 750 students are involved in the university's ROTC program, which has given it the designation as The Military College of Georgia. It is one of only six senior military colleges in the United States. In addition, it is also designated by the University System of Georgia as a state leadership institution. Wikipedia.

Yang J.,University of North Georgia | Fei Z.,University of Kentucky
International Journal of Distributed Sensor Networks | Year: 2013

Broadcasting in vehicular networks has attracted great interest in research community and industry. Broadcasting on disseminating information to individual vehicle beyond the transmission range is based on inter-vehicle communication systems. It is crucial to broadcast messages to other vehicles as fast as possible because the messages in vehicle communication systems are often emergency messages such as accident warning or alarm. In many current approaches, the message initiator or sender selects the node among its neighbors that is farthest away from it in the broadcasting direction and then assigns the node to rebroadcast the message once the node gets out of its range or after a particular time slot. However, this approach may select a nonoptimal candidate because it does not consider the moving status of vehicles including their moving directions and speeds. In this paper, we develop a new approach based on prediction of future velocity and selective forwarding. The current message sender selects the best candidate that will rebroadcast the message to other vehicles as fast as possible. Key to the decision making is to consider the candidates' previous moving status and predict the future moving trends of the candidates so that the message is spread out faster. In addition, this approach generates very low overhead. Simulations demonstrate that our approach significantly decreases end-to-end delay and improves message delivery ratio. © 2013 Jianjun Yang and Zongming Fei. Source

Johnson L.C.,University of North Georgia
Culture, Health and Sexuality | Year: 2016

Female sex tourism has become an accepted income generator for many underemployed men in Jamaica who seek to reap economic benefits from relationships with visiting tourist women. This issue provides contexts to explore the numerous ways in which health intersects with issues of masculinity, sexuality and marginality. Based on ethnographic fieldwork in a popular Jamaican resort town, this paper examines the health implications of female sex tourism for the local population and tourist visitors. Data from this project indicate the need for improved sexually transmitted infection education and HIV outreach work towards men who are involved in transactional sex with tourist women. Due to prevalent perceptions of masculinity and gendered notions of sexuality, men who engage in sex tourism constitute a population that rarely receives the attention of local and national health authorities. Data from this qualitative study suggest that engaging this particular vulnerable population could potentially decrease the risk of STI and HIV infection in the country’s most popular resort areas. Research of this kind is urgently needed to better understand the risk factors and challenges for Caribbean populations, as well as to inform future prevention efforts in the region. © 2016 Informa UK Limited, trading as Taylor & Francis Group Source

Bobrov A.G.,University of Kentucky | Kirillina O.,University of Kentucky | Fetherston J.D.,University of Kentucky | Miller M.C.,University of Louisville | And 3 more authors.
Molecular Microbiology | Year: 2014

Bacterial pathogens must overcome host sequestration of zinc (Zn2+), an essential micronutrient, during the infectious disease process. While the mechanisms to acquire chelated Zn2+ by bacteria are largely undefined, many pathogens rely upon the ZnuABC family of ABC transporters. Here we show that in Yersinia pestis, irp2, a gene encoding the synthetase (HMWP2) for the siderophore yersiniabactin (Ybt) is required for growth under Zn2+-deficient conditions in a strain lacking ZnuABC. Moreover, growth stimulation with exogenous, purified apo-Ybt provides evidence that Ybt may serve as a zincophore for Zn2+ acquisition. Studies with the Zn2+-dependent transcriptional reporter znuA::lacZ indicate that the ability to synthesize Ybt affects the levels of intracellular Zn2+. However, the outer membrane receptor Psn and TonB as well as the inner membrane (IM) ABC transporter YbtPQ, which are required for Fe3+ acquisition by Ybt, are not needed for Ybt-dependent Zn2+ uptake. In contrast, the predicted IM protein YbtX, a member of the Major Facilitator Superfamily, was essential for Ybt-dependent Zn2+ uptake. Finally, we show that the ZnuABC system and the Ybt synthetase HMWP2, presumably by Ybt synthesis, both contribute to the development of a lethal infection in a septicaemic plague mouse model. Copyright © 2014 John Wiley & Sons Ltd. Source

Ankomah P.,Emory University | Johnson P.J.T.,Emory University | Johnson P.J.T.,University of North Georgia | Levin B.R.,Emory University
PLoS Pathogens | Year: 2013

There are both pharmacodynamic and evolutionary reasons to use multiple rather than single antibiotics to treat bacterial infections; in combination antibiotics can be more effective in killing target bacteria as well as in preventing the emergence of resistance. Nevertheless, with few exceptions like tuberculosis, combination therapy is rarely used for bacterial infections. One reason for this is a relative dearth of the pharmaco-, population- and evolutionary dynamic information needed for the rational design of multi-drug treatment protocols. Here, we use in vitro pharmacodynamic experiments, mathematical models and computer simulations to explore the relative efficacies of different two-drug regimens in clearing bacterial infections and the conditions under which multi-drug therapy will prevent the ascent of resistance. We estimate the parameters and explore the fit of Hill functions to compare the pharmacodynamics of antibiotics of four different classes individually and in pairs during cidal experiments with pathogenic strains of Staphylococcus aureus and Escherichia coli. We also consider the relative efficacy of these antibiotics and antibiotic pairs in reducing the level of phenotypically resistant but genetically susceptible, persister, subpopulations. Our results provide compelling support for the proposition that the nature and form of the interactions between drugs of different classes, synergy, antagonism, suppression and additivity, has to be determined empirically and cannot be inferred from what is known about the pharmacodynamics or mode of action of these drugs individually. Monte Carlo simulations of within-host treatment incorporating these pharmacodynamic results and clinically relevant refuge subpopulations of bacteria indicate that: (i) the form of drug-drug interactions can profoundly affect the rate at which infections are cleared, (ii) two-drug therapy can prevent treatment failure even when bacteria resistant to single drugs are present at the onset of therapy, and (iii) this evolutionary virtue of two-drug therapy is manifest even when the antibiotics suppress each other's activity. © 2013 Ankomah et al. Source

Hillegass E.,University of North Georgia
Topics in Geriatric Rehabilitation | Year: 2012

Limited evidence exists on average walking speed for individuals with cardiovascular and/or pulmonary dysfunction. Lower gait speed is associated with diagnoses of hypertension, chronic heart failure, diabetes, and/or low Framingham risk factor score. In addition, slow walking speed and poor grip strength were associated with increased mortality in older adults with CAD. Pilot data on individuals with chronic obstructive lung disease showed an average gait walk speed of 0.58 m/s for moderately impaired pulmonary disease. This article discusses many populations of individuals with cardiovascular and pulmonary disease and the evidence of walk speed in these populations. © 2012 Wolters Kluwer Health | Lippincott Williams &Wilkins. Source

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