Digital Commons Network^™

Detection Of Thermoluminescence In Polyether Ether Ketone (Peek), Dipendra Adhikari

Electronic Theses and Dissertations Archive

Sterilization is a mandatory process for materials used in medical applications. Sterilization procedures commonly used are steam sterilization, ethylene oxide (EtO) sterilization and sterilization by radiation. The high energy photons incident upon a polymer can cause chain scission, crosslinking, defects (trapped electrons) within the polymer matrix, and the formation of free radicals. In this research work, we used thermally stimulated luminescence (TSL) and differential scanning calorimeter (DSC) to study the effects of X- and UV-irradiation on different grades of PEEK. We have observed a major sharp glow peak at temperature of about 150°C (with other five minor peaks), at the …

Using Modelling And Simulation To Improve Elderly Care In Ireland: A Case Study, Mohamed Ragab, Wael Rashwan, Waleed Abo-Hamad, Amr Arisha

Articles

Health care services both globally and domestically - are encountering critical issues due to the increasing demand for services at the time of economic recession. Hospital performance is subject to many constraints, and planning is made more difficult by the complexity and uncertainty of demand. Population ageing is creating immense pressures on healthcare facilities across the world, leaving them struggling to cope with the growing demand for elderly healthcare services. Current demand-supply gaps result in prolonged waiting times for patients and substantial cost burdens for healthcare systems due to delayed discharges. This paper reports on a project that uses modelling …

Pcv: Predicting Contact Volume For Reliable And Efficient Data Transfers In Opportunistic Networks, Shiraz Qayyum, Mehrab Shahriar, Mohan Kumar, Sajal K. Das

Computer Science Faculty Research & Creative Works

Exploiting opportunistic contacts between mobile devices to enable deployment of real applications through reliable and efficient data transfers poses a significant research challenge. Indeed, accurate prediction of contact volume, defined as the maximum amount of data transferable during a contact, can improve performance of deployments. However, existing schemes for estimating contact volume that make use of preconceived patterns or contact time distributions may not be applicable in uncertain environments. In this paper, we propose a novel scheme called PCV that predicts contact volume in soft real-time to enable efficient and reliable data transfers in opportunistic networks. An Android Application that …

Casat-Hoomt: Computer Aided Software Analysis Tool Based On High Order Object-Oriented Modeling Technique, Fan Zhang, Jinwu Wang, Xiaoqing Frank Liu, Buqing Cao, Mingdong Tang

Computer Science Faculty Research & Creative Works

This paper presents the first computer aided software analysis tool based on HOOMT (High Order Object-oriented Modeling Technique), which provides facilities for structured object-oriented analysis by integrating structured analysis and object-oriented analysis. It contains a graphical user interface for HOOMT-based modeling, supports modeling information management, and provides functionalities for developing three component sub-models in HOOMT: High Order Object Model (HOOM), Hierarchical Object Information Flow Model (HOIFM), and Hierarchical State Transition Model (HSTM). It supports structured decomposition of high-order objects, processes, and states. We describe its system architecture and implementation in this paper. © 2013 IEEE.

New Yellow Ba0.93Eu0.07Al2O4, Xufan Li, John D. Budai, Feng Liu, Jane Y. Howe, Jiahua Zhang, Xiao-Jun Wang, Zhanjun Gu, Chengjun Sun, Richard S. Meltzer, Zhengwei Pan

Physics & Astronomy: Faculty Publications

Phosphor-converted white light-emitting diodes for indoor illumination need to be warm-white (i.e., correlated color temperature K) with good color rendition (i.e., color rendering index >80). However, no single-phosphor, single-emitting-center-converted white light-emitting diodes can simultaneously satisfy the color temperature and rendition requirements due to the lack of sufficient red spectral component in the phosphors’ emission spectrum. Here, we report a new yellow Ba_0.93Eu_0.07Al₂O₄phosphor that has a new orthorhombic lattice structure and exhibits a broad yellow photoluminescence band with sufficient red spectral component. Warm-white emissions with correlated color temperature 80 were readily achieved when …

Ascension, Mary Beth Spence, Gregory Evans, Sandra Bennett, Charles Patterson, Keely Hopkins, Megan Hopkins, Christian Flathman, Brooks Keel, Jeremy Wilburn

Research & Economic Development

editor: Mary Beth Spence director: Megan Hopkins designer:

Megan Hopkins, Sherry Woods 1: Jeremy Wilburn

Standardized Construction Of Hpc Clusters For Academic Usage, Bradford Bazemore

Phi Kappa Phi Research Symposium (Archived)

A model for the standardization of design and implementation of HPC clusters to be used in universities is presented. Standardization is achieved by using an open-source operating system, network infrastructure, and software packages. The cluster is configured for universities intending to implement an HPC cluster for research or teaching use. No prior understanding of clusters is assumed but a basic understanding of programming, networking and computers in general is required.

Markerless Analysis Of Upper Extremity Kinematics During Standardized Pediatric Functional Assessment With A Low-Cost Motion Analysis System, Gerald F. Harris, Susan A. Riedel

Biomedical Engineering Faculty Research and Publications

No abstract provided.

Visuomotor Learning Enhanced By Augmenting Instantaneous Trajectory Error Feedback During Reaching, James L. Patton, John Wei Yejun, Preeti Bajaj, Robert A. Scheidt

Biomedical Engineering Faculty Research and Publications

We studied reach adaptation to a 30u visuomotor rotation to determine whether augmented error feedback can promote faster and more complete motor learning. Four groups of healthy adults reached with their unseen arm to visual targets surrounding a central starting point. A manipulandum tracked hand motion and projected a cursor onto a display immediately above the horizontal plane of movement. For one group, deviations from the ideal movement were amplified with a gain of 2 whereas another group experienced a gain of 3.1. The third group experienced an offset equal to the average error seen in the initial perturbations, while …

Lunch And Learn Workshop Data Management Plans, Data Management Services, Zach S. Henderson Library

University Libraries: Instructional Resources (Archived)

Presentation slides on Data management plans.

President's Newsletter, Brooks Keel

President's Newsletter

No abstract provided.

Honors @ Georgia Southern, University Honors Program Students And Staff, Georgia Southern University

Honors College: News & Publications (2008-2020)

• Undergraduate Research
• Honors in Action
• Honors Annual Report
• Alumni Updates
• 30 Years of Honors
• Invest in Honors

Scholarly Teaching: Suggestions For A Road More Traveled, Todd D. Zakrajsek

International Journal for the Scholarship of Teaching & Learning

Excerpt: Most academic disciplines throughout the world have been in the higher education curriculum for hundreds, and in some cases thousands, of years. Teaching itself has certainly been around as long as the earliest of any given discipline. After all, without teaching no profession is possible. How else would a core set of knowledge be taught to those interested in the theoretical constructs, conceptual frameworks, and the successes/failures of those who have worked previously in the discipline? Unfortunately, the concept of consistently teaching from a base of scholarly activity is relatively new. What happens, then, when the very concept …

Instructor Presence In Online Courses And Student Satisfaction, Richard K. Ladyshewsky

International Journal for the Scholarship of Teaching & Learning

This case study explores the role of the online instructor and how they influence student satisfaction. While there has been a substantial body of literature on what impacts on student satisfaction when students study online, there is far less literature focussing on how the instructor mediates this satisfaction, in particular satisfaction related to quality of feedback and teaching. This case study addresses this gap by exploring the performance of two instructors across six fully online courses in a post graduate managerial leadership course. Course evaluation data (quantitative and qualitative) frequency and content of instructor postings, and social network maps were …

Molecular Dynamics Of Ionic Liquids In Nanoporous Electrodes, Nav Nidhi Rajput

LSU Doctoral Dissertations

Molecular dynamics simulations were performed to investigate structural, dynamical and electrical properties of ionic liquids (ILs) confined inside different nanoporous materials. These systems have potential uses in environmental and energy applications. The main goal is to understand how these IL properties are affected by a) characteristics of nanoporous materials such as chemical nature of the pore walls (e.g., carbon, titania), pore size and pore morphology, and b) characteristics of electrolyte, such as amount of IL inside the pores (pore loading) and concentration of organic solvent, in the case of mixtures of ILs with organic solvents. The results obtained in this …

2012-2013 Georgia Southern University Basketball Media Guide, Georgia Southern University

Men's Basketball Records

• Georgia Southern Men's Basketball 2012-2013 Media Guide

2012-2013 Georgia Southern University Women's Basketball Media Guide, Georgia Southern University

Women's Basketball Records

• Georgia Southern Women's Basketball 2012-13 Media Guide Make Tradition

Georgia Southern University Fact Book, Georgia Southern University

Georgia Southern Fact Books (1976-2022)

No abstract provided.

2013-2014 Senate, Senate Committee, And University Committee Membershiip, Georgia Southern University

Faculty Senate: Membership Lists

No abstract provided.

At A Glance: Georgia Southern University

Georgia Southern at a Glance (2011-2016)

No abstract provided.

Graduate Catalog, Georgia Southern University

Graduate Catalogs

No abstract provided.

Environmental Impact On Direct Neuronal Reprogramming In Vivo In The Adult Brain, Andrew Grande, Kyoko Sumiyoshi, Alejandro Lopez-Juarez, Jennifer Howard, Bhuvaneswari Sakthivel, Bruce Aronow, Kenneth Campbell

Health & Biomedical Sciences Faculty Publications

Direct reprogramming of non-neuronal cells to generate new neurons is a promising approach to repair damaged brains. Impact of the in vivo environment on neuronal reprogramming, however, is poorly understood. Here we show that regional differences and injury conditions have significant influence on the efficacy of reprogramming and subsequent survival of newly generated neurons in the adult rodent brain. A combination of local exposure to growth factors and retrovirus-mediated overexpression of the neurogenic transcription factor Neurogenin2 (Neurog2) can induce new neurons from non-neuronal cells in the adult neocortex and striatum where neuronal turnover is otherwise very limited. These two regions …

Technology Argument Frames : Examining The Impact Of Argumentation On The Development Of A Health Information Exchange Initiative, David Murithi Murungi

LSU Doctoral Dissertations

This dissertation applies the Technology Frames of Reference (TFR) theoretical lens to examine the implementation of a health information exchange (HIE) initiative in southeast USA. It extends the TFR lens by developing Toulminian argument maps to depict frame structure and employing the argument theories of Toulmin, Habermas and Perelman Olbrechts-Tyteca to help analyze the role that argumentation plays in the emergence and development of the technology frames that characterized this HIE endeavor. The argument maps developed in this dissertation helped to assess the level of argumentation within frames and to compare argumentation across frame domains. The argument maps were also …

An Examination Of Speech Characteristics Under Conditions Of Affective Reactivity And Variable Cognitive Load As Distinguishing Feigned And Genuine Schizophrenia, Gina M. Najolia

LSU Doctoral Dissertations

Proper assessment of schizophrenia is complicated by the need for clinicians to be cognizant of the possibility of malingering, i.e., the intentional production of false or grossly exaggerated symptoms, motivated by external incentives. Current standardized schizophrenia malingering detection methods rely on endorsement of improbable or exaggerated, mainly positive, symptoms. However, these detection methods may be vulnerable to successful manipulation by sophisticated malingerers, particularly if coached regarding response style assessment strategies. This paper explored the utility of supplemental variables to examine in schizophrenia malingering detection by using a simulation study design to compare schizophrenia patients, a community participant sample instructed to …

Evaluation Of Gas-Assisted Gravity Drainage Eor Process Applicability In A Louisiana Oil Field Through Experiments And Reservoir Simulation, Wagirin Ruiz Paidin

LSU Doctoral Dissertations

The Gas-Assisted Gravity Drainage (GAGD) process was developed as an alternative to conventional gas injection enhanced oil recovery (EOR) processes, which suffer from their inherent weakness of combating gravity segregation. The GAGD process, however, is aimed at taking advantage of this phenomenon and consists of using horizontal producers near the bottom of the payzone while injecting gas using vertical injection wells. It is hypothesized that the injected gas will rise to the top, thereby forming a gas cap while displacing reservoir brine/oil downward towards the producers. In this study, a single-well alternative to the multi-well GAGD process was investigated to …

Metal-Based Microchannel Heat Exchangers : Manufacturing And Heat Transfer Testing, Bin Lu

LSU Doctoral Dissertations

This dissertation focuses on improving the functionality of metal-based microchannel heat exchangers (MHEs), as well as pushing this technology toward real-world applications. Design optimization was carried out on MHEs for performance maximization. Double-layered microchannel layout was experimentally studied, and a significant reduction on liquid flow pressure drop penalty was achieved. Other than water, another commonly-used coolant, ethylene glycol, was applied to MHEs, and flow and heat transfer characteristics were quantified. Transient Liquid Phase (TLP) bonding was used for joining Cu structures. For further understanding of the MHE heat transfer, a detailed examination was carried out on the TLP bonding interface …

Climate Change Geoengineering: Philosophical Perspectives, Legal Issues, And Governance Frameworks, William C. G. Burns, Andrew L. Strauss

School of Law Faculty Publications

The international community is not taking the action necessary to avert dangerous increases in greenhouse gases. Facing a potentially bleak future, the question that confronts humanity is whether the best of bad alternatives may be to counter global warming through human-engineered climate interventions. In this book, eleven prominent authorities on climate change consider the legal, policy, and philosophical issues presented by geoengineering. The book asks: When, if ever, are decisions to embark on potentially risky climate modification projects justified? If such decisions can be justified, in a world without a central governing authority, who should authorize such projects and by …

“A Sufficient Number": The Historic African American Community Of Peterborough In Warren, Maine, Kate E. Mcmahon Ma

All Student Scholarship

Warren, Maine is located in the midcoast region of southeastern Maine. The small town has a long history that is intrinsically linked to the maritime activities of the region, which began in the mid-seventeenth century. Sometime around 1782, Sarah Peters was brought to Warren as a slave on a ship owned by Captain James McIntyre. After slavery was outlawed in Massachusetts in 1783/1784, Sarah successfully sued for her freedom and married a man named Amos Peters. Together, they raised a large, mixed-racial family, and settled near South Pond, a good distance away from the main village. By the 1820s, they …

Brock, Lowry, Leon, Bailey, Woodward, Maple, Brett, Cripe And Cooper Families, Susie Van Kirk

Susie Van Kirk Papers

Research notes from a variety of newspapers and census reports, 1880s-1940s.

An Assessment Of Current Methodologies For Mitigating The Potential Effects Of Anthropogenic Underwater Sound On Marine Life, And Recommendations For Best Practice, Ross Craig Compton

School of Biological and Marine Sciences Theses

Underwater sound from anthropogenic sources such as seismic surveys, marine renewable device installations and naval exercises has the potential to disturb and cause injury to a variety of marine species. There is particular concern for the potential effects upon marine mammals, which utilise sound to communicate, hunt and navigate. Observed effects include behavioural changes and reduced sighting rates, with unknown consequences for individuals or populations over time. Potential effects on marine mammals include sound induced damage to auditory systems, altered diving behaviour potentially resulting in decompression sickness, stranding and death. The aim of the thesis was to develop a framework …