Digital Commons Network^™

A Control Theoretic Approach For Security Of Cyber-Physical Systems, Haifeng Niu

Doctoral Dissertations

"In this dissertation, several novel defense methodologies for cyber-physical systems have been proposed. First, a special type of cyber-physical system, the RFID system, is considered for which a lightweight mutual authentication and ownership management protocol is proposed in order to protect the data confidentiality and integrity. Then considering the fact that the protection of the data confidentiality and integrity is insufficient to guarantee the security in cyber-physical systems, we turn to the development of a general framework for developing security schemes for cyber-physical systems wherein the cyber system states affect the physical system and vice versa. After that, we apply …

Efficient And Quantitative Emc Predictions (Emission And Immunity) For Ecu Modules, Guangyao Shen

Doctoral Dissertations

"This dissertation consists of three papers. In the first paper, a methodology of building an IC model capable of predicting failures for given disturbances at the clock input based on limited or no knowledge about IC internals was developed.

In the second paper, the maximized radiated emissions of the heat-sink/IC structure are predicted up to 40 GHz by creating an equivalent source using the measured electrical field in the gap between the heat-sink and ICs. The electric field is detected by an E-field probe made of an open coaxial cable coated with absorbing material. A numerical model is built in …

Development Of Implants Composed Of Bioactive Materials For Bone Repair, Wei Xiao

Doctoral Dissertations

"The purpose of this Ph.D. research was to address the clinical need for synthetic bioactive materials to heal defects in non-loaded and loaded bone. Hollow hydroxyapatite (HA) microspheres created in a previous study were evaluated as a carrier for controlled release of bone morphogenetic protein-2 (BMP2) in bone regeneration. New bone formation in rat calvarial defects implanted with BMP2-loaded microspheres (43%) was significantly higher than microspheres without BMP2 (17%) at 6 weeks postimplantation. Then hollow HA microspheres with a carbonate-substituted composition were prepared to improve their resorption rate. Hollow HA microspheres with ~12 wt. % of carbonate showed significantly higher …

The Effect Of Scoliotic Deformity On Spine Kinematics In Adolescents., Sarah Galvis, Douglas Burton, Brandon Barnds, John Anderson, Richard M. Schwend, Nigel Price, Sara Wilson, Elizabeth Friis

Manuscripts, Articles, Book Chapters and Other Papers

Background: While adolescent idiopathic scoliosis (AIS) produces well characterized deformation in spinal form, the effect on spinal function, namely mobility, is not well known. Better understanding of scoliotic spinal mobility could yield better treatment targets and diagnoses. The purpose of this study was to characterize the spinal mobility differences due to AIS. It was hypothesized that the AIS group would exhibit reduced mobility compared to the typical adolescent (TA) group.

Methods: Eleven adolescents with right thoracic AIS, apices T6-T10, and eleven age- and gender-matched TAs moved to their maximum bent position in sagittal and coronal plane bending tasks. A Trakstar …

Book Review: Student Writing In The Quantitative Disciplines: A Guide For College Faculty, Mark Causapin

All Works

No abstract provided.

Change-Point Detection In The Marginal Distribution Of A Linear Process, Farid El Ktaibi, B. Gail Ivanoff

All Works

© 2016, Institute of Mathematical Statistics. All rights reserved. The subject of this paper is the detection of a change in the marginal distribution of a stationary linear process. By considering the marginal distribution, the change-point model can simultaneously incorporate any change in the coefficients and/or the innovations of the linear process. Furthermore, the change point can be random and data dependent. The key is an analysis of the asymptotic behaviour of the sequential empirical process, both with and without a change point. Our results hold under very mild conditions on the existence of any moment of the innovations and …

A Conceptual Model To Determine Vulnerability Of Wildlife Populations To Offshore Wind Energy Development, M. Wing Goodale, Iain J. Stenhouse

Human–Wildlife Interactions

As offshore wind energy development is planned in the United States, there is an increasing need for pre- and post-construction monitoring plans to be focused on species determined to be most vulnerable to hazards of a specific project. We propose a conceptual model that incorporates biological and sociological parameters. Specifically, we suggest that demographic, ethological/biological, and population sensitivity be considered with legal protection, economic importance, and/or stakeholder interest. We recommend that vulnerability determinations include qualitative and quantitative methods.

Declining Populations Of Greater Sage-Grouse: Where And Why, Michael R. Conover, Anthony J. Roberts

Human–Wildlife Interactions

Scientists have been predicting the extinction of greater sage-grouse (Centrocercus urophasianus) since 1916, and sage-grouse populations have declined relentlessly during the last century despite attempts to reverse the decline. In this review paper, we examined the scientific literature to evaluate hypotheses about why sage-grouse populations have declined. There is little support for the hypotheses that the decline is due to overhunting, parasites, food shortages, or collisions with power lines or fences. West Nile Virus (WNV) reduced sagegrouse up to 25% when the virus first reached the West during 2002, but sage-grouse have developed resistance to the virus since …

Post-Disaster Supply Chain Interdependent Critical Infrastructure System Restoration: A Review Of Data Necessary And Available For Modeling, Varun Ramachandran, Suzanna Long, Tom Shoberg, Steven Corns, Hector J. Carlo

Engineering Management and Systems Engineering Faculty Research & Creative Works

The majority of restoration strategies in the wake of large-scale disasters have focused on short-term emergency response solutions. Few consider medium- to long-term restoration strategies to reconnect urban areas to national supply chain interdependent critical infrastructure systems (SCICI). These SCICI promote the effective flow of goods, services, and information vital to the economic vitality of an urban environment. To re-establish the connectivity that has been broken during a disaster between the different SCICI, relationships between these systems must be identified, formulated, and added to a common framework to form a system-level restoration plan. To accomplish this goal, a considerable collection …

The Challenge Of Analyzing The Results Of Next-Generation Sequencing In Children., Isabelle Thiffault, John Lantos

Manuscripts, Articles, Book Chapters and Other Papers

In recent years, next-generation sequencing technologies have revolutionized approaches to genetic studies. Whole-exome or whole-genome sequencing allows diagnoses in many patients who have complex phenotypes and unusual clinical presentations. As genomic and exomic testing expands in both the research and clinical settings, pediatricians will need to understand the technology of next-generation sequencing and the complexity of interpreting genomic variants relevant to patient phenotypic features. This article briefly explains the technology by which genomes are sequenced and discusses some of the complexity related to interpreting genomic variants. We conclude with some thoughts on the clinical applications of such testing.

In Silico Genome-Wide Identification And Analysis Of Microsatellite Repeats In The Largest Rna Virus Family (Closteroviridae), Biju George, Binu George, Mayur Awasthi, Ram Nageena Singh

Turkish Journal of Biology

Microsatellites are known to exhibit ubiquitous presence across all kingdoms of life, including viruses. Members of the family Closteroviridae are the largest RNA viruses and severely affect different agricultural crops worldwide, including1397645907citrus, grapevine, and vegetables. Here we identified and systematically analyzed the nature and distribution of both simple and complex microsatellites present in the complete genome of 36 species belonging to Closteroviridae. Our results showed, in all analyzed genomes, that neither genome size nor GC content had any influence on number, relative abundance, or relative density of microsatellites. For each genome, dinucleotide repeats were found to be highly predominant and …

Collaborative Academic Library Digital Collections Post- Cambridge University Press, Hathitrust And Google Decisions On Fair Use, Michelle M. Wu

Georgetown Law Faculty Publications and Other Works

Academic libraries face numerous stressors as they seek to meet the needs of their users through technological advances while adhering to copyright laws. This paper seeks to explore one specific proposal to balance these interests, the impact of recent decisions on its viability, and the copyright challenges that remain after these decisions.

A Response To Professor Samuel Rascoff’S Presidential Intelligence, Carrie F. Cordero

Georgetown Law Faculty Publications and Other Works

Should foreign intelligence collection be subject to more rigorous oversight, and therefore, improved accountability, through a policy process that involves deeper personal involvement by the President and National Security Council (NSC)? Would a greater number of political appointees across the intelligence community facilitate that oversight? These are the essential questions posed by Professor Samuel Rascoff in his article Presidential Intelligence.

Food For Thought: Should Libraries Partner With Nonlibrary Search Engine Providers For Their Opacs And Discovery Layers?, Michelle Wu

Georgetown Law Faculty Publications and Other Works

Since the development of integrated library systems (ILS) in the 1970s, the focus of developers and librarians has been on the “integrated” aspect, but with the advances in technology, the time has come for libraries to consider whether a disaggregated system would better benefit their users. This article seeks to make the argument that the design of a user-friendly public interface to library systems is ideal for partnerships with the broader search engine industry; such an approach would enable participants to harness their respective strengths while simultaneously limiting the effect of their deficiencies

Electrostatically-Actuated 4h-Sic In-Plane And Out-Of-Plane High Frequency Mems Resonator, Allen V. Lim, Tutku Karacolak, Jheng Yi Jiang, Chih Fang Huang, Feng Zhao

Electrical and Computer Engineering Faculty Research & Creative Works

As a wide bandgap and single crystalline semiconductor, 4H-polytype silicon carbide (4H-SiC) is an excellent material choice for devices operating in harsh environments of high temperature, high pressure, radiation, chemical and biomedical, etc. In this letter, an electrostatically actuated 4H-SiC micro resonator was fabricated by dopant-selective photoelectrochemical etching of n-p-n homoepitaxial structure. Resonant frequencies of 3.463 MHz (out-of-plane) and 16.9 MHz (in-plane) were attained, and they are in good agreement with theoretical calculation. To the best of our knowledge, these frequencies are the highest values ever reported from single crystalline 4H-SiC MEMS resonators.

Practices And Perceptions Of Social Media Among Leaders In Higher Education: A Quantitative Study, Melissa Elizabeth Holmes

Graduate Student Theses, Dissertations, & Professional Papers

This quantitative dissertation study explored the social media practices and perceptions of 452 leaders of 142 public and private non-profit four-year degree granting institutions in the western United States. Descriptive statistics were calculated for gender, position title, age, social media use, and attitudes regarding themes revealed in a review of current literature. Then, a Spearman Rho analysis was used to measure the strength of correlation between hours using social media and rank scores of social media attitudes. The study revealed that about 85% of leaders use social media for an average of 4.54 hours per week (SD=5.59, N=452). Social media …

An Architecture For Qos-Enabled Mobile Video Surveillance Applications In A 4g Epc And M2m Environment, Mohammad Abu-Lebdeh, Fatna Belqasmi, Roch Glitho

All Works

© 2016 IEEE. Mobile video surveillance applications are used widely nowadays. They offer real-time video monitoring for homes, offices, warehouses, airports, and so on with live and pre-recorded on-demand video streaming. Quality of service (QoS) remains a key challenge faced by most of these applications. In this article, we propose an architecture for mobile video surveillance applications with a guaranteed and differentiated QoS support. The architecture relies on the 3GPP 4G evolved packet core (EPC). The main components are the QoS enabler, media server, and machine-to-machine gateway and surveillance application. To demonstrate its feasibility, a proof of concept prototype has …

Assessment Of Online Information Literacy Learning Objects For First Year Community College English Composition, Mara Bordignon, Alana Otis, Adele Georgievski, Jennifer Peters, Gail Strachan, Joy Muller, Rana Tamin

All Works

© 2016 Bordignon, Otis, Georgievski, Peters, Strachan, Muller, and Tamin. Objective - The main objective was to determine whether information literacy (IL) learning objects (LOs) impact student IL competency, specifically in a foundational first year English composition course. The primary research question was: What is the effectiveness of IL LOs compared to face-to-face instruction in terms of students' skill acquisition? Methods - The methods involved testing student IL competency through a multiple-choice test given pre- and post-IL intervention. Effectiveness was measured by assessing whether IL competency improves after exposure to one of two interventions: online IL LOs or face-to-face librarian-led …

Transcriptional Regulation Of Dual-Specificity Phosphatase 4 (Dusp4) By Muscle Ring Finger 1 (Murf1) And Myogenic Regulatory Factors, Ashley Noel Haddock

UNF Graduate Theses and Dissertations

Skeletal muscle atrophy can occur at any age and as a result of numerous physiological conditions and thus, it was necessary to better identify the molecular underpinnings of the atrophy cascade so that new therapeutic targets to treat muscle wasting might be identified. MuRF1 was first identified as a marker of skeletal muscle atrophy over a decade ago; however, recent work suggests that this E3 ubiquitin ligase may participate in muscle wasting by regulating the transcriptional activity of genes differentially expressed in response to muscle atrophy. Dusp4, a dual-specificity phosphatase and member of the MAPK cascade, is induced in response …

San Antonio De Pocotalaca: An Eighteenth-Century Yamasee Indian Town In St. Augustine, Florida, 1716-1752, Amanda A. Hall

UNF Graduate Theses and Dissertations

Following the Yamasee War of 1715, many of the Yamasee Indians rekindled alliances with the Spanish and returned to La Florida. San Antonio de Pocotalaca (1716 to 1752) was one of three initial Yamasee Indian towns to relocate from South Carolina and settle on the fringes of St. Augustine. In South Carolina, Pocotalaca (referred to there as Pocotaligo) served as the primary upper town of six Yamasee towns and was the political center for conferences and council meetings between Yamasees, their Indian allies, and South Carolina officials. When Pocotalaca relocated to St. Augustine after the Yamasee War, the town …

Comparative Study Of School And Science Teacher Technology Leaderships In High And Middle Schools In The United States And China, Ying Tang

UNF Graduate Theses and Dissertations

Researchers found that various schools took different technology leadership approaches and that school leadership practices were empirically associated with outcomes for teacher performance and student learning. To date, few studies systematically examined the salient aspects of school technology leadership (STL) and science teacher technology leadership (STTL), and the effects of country and grade-level on school and science teacher technology leaderships. A comprehensive technology leadership model was lacking for secondary school science education. Therefore, this research study focused on the status of school technology leadership, science teacher technology leadership, and their relationships and differences across country and grade. In this study, …

Safety Implications Of Transit Operator Schedule Policies, Hung Hoang

UNF Graduate Theses and Dissertations

In the bus transit community, driving long hours or spending extra hours at work are very common. This is true in the State of Florida, where bus transit is a very popular mode of public transportation. Although the correlation between a bus driver’s schedule and a crash event appears intuitive, further study regarding the effects of operator driving schedules on accident rates is needed to evaluate safety measures. The focus of this research is on the examination of bus driver schedules, and the effects of scheduling on accident rates in Florida. Data were collected at five bus transit agencies including …

Characterization Of Tensile Deformation In Az91 Mg Alloy Castings, Ogun Unal

UNF Graduate Theses and Dissertations

Tensile deformation characteristics of cast aluminum alloys have been investigated extensively. Cast Mg alloys have remained mostly neglected by researchers, despite their potential for weight savings. This present study is motivated by this gap in the literature and consists of two stages; in Stage 1, analysis of tensile data gathered from literature were reanalyzed, and in Stage 2, data generated from tensile testing of 60 specimens of AZ91 Mg alloy castings in both T4 and T6 conditions were analyzed to characterize work hardening behavior.

In Stage 1, more than 1600 data were collected from the literature for various Mg alloy …

Humanitarian Intervention: Moral Perspectives, Tyrome Clark

UNF Graduate Theses and Dissertations

This thesis addresses primary concepts in the humanitarian intervention debates. I argue that humanitarian intervention is a perfect duty. The global community has a moral obligation to act decisively in the face of extreme human rights abuses. There are two contrasting theoretical perspectives regarding international relations and humanitarian intervention: statism and cosmopolitanism. These contrasting perspectives contest the relative value of state sovereignty and human rights. Some of the most prominent ethicists in the debate have determined states have a “right” to intervene militarily in the internal affairs of other states to halt severe human rights abuses but there is no …

The Ultimate Irony: An Information Age Without Librarians, Dawn S. Ady

UNF Graduate Theses and Dissertations

In this thesis, the continuing relevance of the profession of librarianship in the digital age is explored and assessed. After defining the library as information itself, the thesis establishes that electronic formats replacing printed matter is not an indication of libraries becoming extinct. Further, various aspects of the profession of librarianship—including library ethics, information extraction skills, and information literacy instruction—are discussed. Additionally, the potential for librarians to play an important role in a largely “jobless” society (as forecast by some experts and scholars as well as in a recent Oxford University study) is evaluated. Finally, a proposal is made for …

Ability And Abnormality, Jessica West

UNF Graduate Theses and Dissertations

This thesis addresses questions relating to perceptions of abilities and abnormalities found in everyday life. Abilities in this paper range from a total lack of ability to function in extreme disability to a level of ability expected by society to enhanced and radically enhanced abilities and their place in the realm of abnormality. We begin by establishing the differences between abilities and enhancements. Following this is a discussion regarding the ethical concerns of human enhancement. After this we turn to a discussion of abnormality and the social experience of abnormality. These discussions lead into establishing a basis for how many …

Functional Characterization Of A Novel Disaccharide Membrane Transporter In The Digestive Tract Of The American Lobster, Homarus Americanus, Olivia Scheffler

UNF Graduate Theses and Dissertations

In animals, the accepted model of carbohydrate digestion and absorption involves reduction of disaccharides into the simple sugars glucose, fructose and galactose. Previous studies have shown the presence of disaccharides maltose and trehalose in the blood of several crab species, the crayfish and the American lobster. In 2011, a gene for a distinct disaccharide sucrose transporter (SCRT) was first found in Drosophila melanogaster and characterized using a yeast expression system. The purpose of the current study was to identify and characterize a putative disaccharide transporter analog in crustaceans using the American lobster, Homarus americanus. Brush border membrane vesicles purified …

Analysis Of A Long-Term Record Of Nearshore Currents And Implications In Littoral Transport Processes, Carolina Burnette

UNF Graduate Theses and Dissertations

A seasonal and long-term analysis of the vertical structure of currents in the nearshore is conducted to determine the role of the wind in driving currents and consequently affecting littoral transport processes. Approximately ten years (January, 2002 – October, 2011) of nearshore current profiles are examined using the data collected with an Acoustic Doppler Current Profiler (ADCP) installed off of Spessard Holland North Beach Park located in Melbourne Beach, Florida. Additionally, wind data collected with a directional anemometer from September, 2002, until October, 2008, are used to further characterize the long-term hydrodynamic forcing. With the shoreline oriented nominally 17^{o …}

The Mechanics And Fixed Operations Of Human Experience, James Dominick Di Netta

UNF Graduate Theses and Dissertations

This paper will use the natural laws of the universe and amassed evidence to support a dynamic systems theory approach to explain the mechanics and fixed operations of the human experience taking place inside a causally determined universe without the possibility of free will. By reductionary methods, the universe and all its’ contents, including human agents, will be exemplified as complex dynamic systems. In so doing, the human experience is reduced to being comprised of information acting and reacting with other information existing in the universe, specifically ideas. Allowing ideas to take on a physical manifestation shows how the feedback …

The Influence Of Sea-Level Rise On Salinity In The Lower St. Johns River And The Associated Physics, Teddy Mulamba

UNF Graduate Theses and Dissertations

The lower St Johns River is a low-gradient coastal river with tidal hydrodynamics that remain active from the Atlantic Ocean through to the upstream end of Lake George (river km 200). Salinity in the lower St Johns River is spatially and temporally variable, whereby the salinity distribution is driven primarily by the combination of ocean processes of tides and storm surges and hydrological processes of watershed runoff. This study examines the probability distributions and modes of behavior of salinity for present-day conditions using data, numerical modeling and eigen-analysis. The hypothesis is that long-term changes (decadal scale) in the ocean processes …