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The University of Southern Mississippi

2017

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Deep Learning Architectures For Multi-Label Classification Of Intelligent Health Risk Prediction, Andrew Maxwell, Runzhi Li, Bei Yang, Heng Weng, Aihua Ou, Huixiao Hong, Zhaoxian Zhou, Ping Gong, Chaoyang Zhang Dec 2017

Deep Learning Architectures For Multi-Label Classification Of Intelligent Health Risk Prediction, Andrew Maxwell, Runzhi Li, Bei Yang, Heng Weng, Aihua Ou, Huixiao Hong, Zhaoxian Zhou, Ping Gong, Chaoyang Zhang

Faculty Publications

No abstract provided.


Evaluation Of A Health Education Intervention To Improve Knowledge, Skills, Behavioral Intentions And Resources Associated With Preventable Determinants Of Infant Mortality, Danielle Fastring, Susan Mayfield-Johnson, Janna Madison Dec 2017

Evaluation Of A Health Education Intervention To Improve Knowledge, Skills, Behavioral Intentions And Resources Associated With Preventable Determinants Of Infant Mortality, Danielle Fastring, Susan Mayfield-Johnson, Janna Madison

Faculty Publications

Mississippi has the highest rate of infant mortality in the nation (9.3 infant deaths for 1,000 live births). A health disparity exists between white infants (6.2) and black infants (13.0). This project reports on the effectiveness of a pilot educational program, Healthy Moms and Healthy Babies, which sought to improve knowledge, skills, behavioral intentions and resources related to preventable determinants of infant mortality. A curriculum was developed and piloted with women who were currently pregnant, thinking of becoming pregnant or who had an infant


Alcohol Priming And Attribution Of Blame In An Acquaintance Rape Vignette, Elena V. Stepanova, Amy L. Brown Dec 2017

Alcohol Priming And Attribution Of Blame In An Acquaintance Rape Vignette, Elena V. Stepanova, Amy L. Brown

Faculty Publications

Research on nonpharmacological effects of alcohol shows that exposure to alcohol-related cues (i.e., alcohol priming) can increase behaviors associated with actual alcohol consumption. Attributions of responsibility to female victims in sexual assault scenarios are affected by whether or not alcohol was consumed by a victim and/or perpetrator. Victims often receive higher levels of blame if they consume alcohol prior to the assault. This work extends the research on nonpharmacological effects of alcohol into a novel domain of blame attribution toward rape victims. In two studies, participants in lab settings (Study 1; N = 184) and online (Study 2; N = …


Factors Affecting Faculty Use Of Video Conferencing In Teaching: A Mixed-Method Study, Juhong Christie Liu, Rob Alexander Dec 2017

Factors Affecting Faculty Use Of Video Conferencing In Teaching: A Mixed-Method Study, Juhong Christie Liu, Rob Alexander

Journal of Educational Technology Development and Exchange (JETDE)

Teaching and learning can now utilize a variety of real-time technologies to build online social presence and learning interactions. However, teachers and students must effectively prepare for this experience; and the identification of contextual and perceptual influences become evolving and necessary (Lehman & Conceição, 2010; Liu & Kaye, 2016). In this paper, the authors explore factors that impact faculty use of synchronous video conferencing (VC) in teaching. The two-phase mixed-method study spanned a year, converging qualitative and quantitative approaches through observations and recordings during a 6-week faculty professional development program, a campus-wide survey, and focus groups. Thematic analysis was used …


Intrinsic Motivation Factors In Gamified Photography Learning: Direct And Indirect Effects, Domenic Dini, Leping Liu Dec 2017

Intrinsic Motivation Factors In Gamified Photography Learning: Direct And Indirect Effects, Domenic Dini, Leping Liu

Journal of Educational Technology Development and Exchange (JETDE)

To help students with motivation to learn, gamification has been explored as a method of delivering content to students in an engaging and motivating way. This study explored the motivation components in gamified design that linked to learning outcomes in a gamified photography curriculum. Six intrinsically motivating factors (challenge, curiosity, control, cooperation, competition, and recognition) were carefully integrated into the game experience design. Participant test scores and survey data were used to develop a maximum likelihood structural equation model. The model showed that among the six intrinsic motivation factors curiosity and control were directly linked to learning outcomes while challenge …


Using Learning Analytics To Improve Instructional Support Design For Online Learning, Lin Zhong Dec 2017

Using Learning Analytics To Improve Instructional Support Design For Online Learning, Lin Zhong

Journal of Educational Technology Development and Exchange (JETDE)

Learning analytics has been demonstrated as a great tool to evaluate quality of instructional design. This study examined how instructors can utilize learning analytics to improve online learning support design. 128 students from a southern university in United States participated in this study. All learning data related to learners and online learning environment was collected and analyzed. Results showed that learning analytics results were very helpful for instructors to improve online instructional support timing, adjust learning module design, and enhance learning materials accessibility.


The Effectiveness Of K-12 Principal’S Digital Leadership In Supporting And Promoting Communication And Collaboration Regarding Ccss Implementation, Lin Zhong Dec 2017

The Effectiveness Of K-12 Principal’S Digital Leadership In Supporting And Promoting Communication And Collaboration Regarding Ccss Implementation, Lin Zhong

Journal of Educational Technology Development and Exchange (JETDE)

Technology plays an important role in supporting successful College-and Career- State Standards (CCSS) implementation, which requires principals and educators effectively communicate and collaborate at the local, state, and national level. This study aims to investigate the effectiveness of digital leadership in supporting communication and collaboration regarding CCSS implementation in K-12 schools. In this study, 254 public school teachers from five school districts in Mississippi were surveyed. Results showed that principals were most effective in supporting professional development and digital citizenship. In addition, teachers’ age and teaching grades have an impact on the effectiveness of principals’ digital leadership strategies. Implications are …


Relativistic Three-Dimensional Lippman-Schwinger Cross Sections For Space Radiation Applications, Charles M. Werneth, Xiaojing Xu, Ryan B. Norman, Khin M. Maung Dec 2017

Relativistic Three-Dimensional Lippman-Schwinger Cross Sections For Space Radiation Applications, Charles M. Werneth, Xiaojing Xu, Ryan B. Norman, Khin M. Maung

Faculty Publications

Radiation transport codes require accurate nuclear cross sections to compute particle fluences inside shielding materials. The Tripathi semi-empirical reaction cross section, which includes over 60 parameters tuned to nucleon-nucleus (NA) and nucleus-nucleus (AA) data, has been used in many of the world’s best-known transport codes. Although this parameterization fits well to reaction cross section data, the predictive capability of any parameterization is questionable when it is used beyond the range of the data to which it was tuned. Using uncertainty analysis, it is shown that a relativistic three-dimensional Lippmann-Schwinger (LS3D) equation model based on Multiple Scattering Theory (MST) that uses …


Deep Experimental Profiling Of Microrna Diversity, Deployment, And Evolution Across The Drosophila Genus, Jaaven Mohammed, Alex S. Flynt, Alexandra M. Panzarino, Md Mosharrof Hossain Mondal, Matthew Decruz, Adam Siepel, Eric C. Lai Dec 2017

Deep Experimental Profiling Of Microrna Diversity, Deployment, And Evolution Across The Drosophila Genus, Jaaven Mohammed, Alex S. Flynt, Alexandra M. Panzarino, Md Mosharrof Hossain Mondal, Matthew Decruz, Adam Siepel, Eric C. Lai

Faculty Publications

To assess miRNA evolution across the Drosophila genus, we analyzed several billion small RNA reads across 12 fruit fly species. These data permit comprehensive curation of species- and clade-specific variation in miRNA identity, abundance, and processing. Among well-conserved miRNAs, we observed unexpected cases of clade-specific variation in 5′ end precision, occasional antisense loci, and putatively noncanonical loci. We also used strict criteria to identify a large set (649) of novel, evolutionarily restricted miRNAs. Within the bulk collection of species-restricted miRNAs, two notable subpopulations are splicing-derived mirtrons and testes-restricted, recently evolved, clustered (TRC) canonical miRNAs. We quantified miRNA birth and death …


Clinical Practice Update On A Temperature Guideline To Decrease Intraoperative Hypothermia In Patients Undergoing General Anesthesia, Ashley Rigdon Dec 2017

Clinical Practice Update On A Temperature Guideline To Decrease Intraoperative Hypothermia In Patients Undergoing General Anesthesia, Ashley Rigdon

Doctoral Projects

Intraoperative hypothermia is a common problem within the operating room. Anesthesia inhibits the body’s normal thermoregulatory response to hypothermia, redistributing heat from the core to the periphery (Brandt et al., 2009). In the event of hypothermia, the incidence of infection triples as there is an increased risk for blood loss, increased risk for cardiac complications, and the thermal discomfort of patients (Brandt et al., 2009). Following a recent clinical practice guideline can help prevent hypothermia.

A descriptive project was organized utilizing current literature. The sample for this study is 45 CRNAs practicing at a multiple system healthcare facility in the …


Increasing Student Registered Nurse Anesthetists Clinical Self-Efficacy Using Peer Mentoring, Megan Christine Bass Dec 2017

Increasing Student Registered Nurse Anesthetists Clinical Self-Efficacy Using Peer Mentoring, Megan Christine Bass

Doctoral Projects

The purpose of this project is to determine if clinical self-efficacy is increased in SRNAs at The University of Southern Mississippi after participation in the peer mentoring program. The project was a one-group pre and posttest design in a sample of SRNAs who received peer mentoring. To evaluate the students’ perceived clinical self-efficacy before and after the peer mentoring educational intervention, the Rowbotham and Schmitz Student Self-Efficacy scale (SSE) (2013) was adapted and administered to second-year SRNAs (N=17). Clinical performance, skill and knowledge development, social interaction with clinical faculty, and coping with clinical stress are the four areas evaluated by …


Evaluation Of Delivery Methods Of Chemical Dependency And Wellness Education, Marissa Coggin Dec 2017

Evaluation Of Delivery Methods Of Chemical Dependency And Wellness Education, Marissa Coggin

Doctoral Projects

Anesthesia practice is learned in a stressful environment, and these stressors may lead to the students’ development of maladaptive coping mechanisms. Despite significant improvements in our understanding of addiction and our approaches to combat this problem, the risk of substance misuse remains high in nurse anesthesia students. Education and intervention are imperative when taking preventative measures. The purpose of this Doctor of Nursing Practice (DNP) project was to determine whether delivery method of chemical dependency/wellness educational program effects the level of understanding of anesthesia providers and substance misuse and the development of healthy coping mechanisms.

In determining whether the delivery …


Implementing Computerized St-Segment Analysis Utilizing 5-Lead Ecg Cables During The Perioperative Period For Myocardial Ischemia Detection In Patients At Risk For Cardiovascular Disease, Lauren Robertson Dec 2017

Implementing Computerized St-Segment Analysis Utilizing 5-Lead Ecg Cables During The Perioperative Period For Myocardial Ischemia Detection In Patients At Risk For Cardiovascular Disease, Lauren Robertson

Doctoral Projects

Cardiovascular disease (CVD) is one of the leading causes of death in the United States (U.S.) annually (Centers for Disease Control and Prevention, 2011). Mississippi has a disproportionately higher percentage of citizens likely to have CVD (Mississippi State Department of Health [MSDH], n.d.). The numerous stressors related to surgery are alone enough to increase the demand of the heart and lead to ischemia of the myocardium. Surgical stressors combined with preexisting CVD can exponentially increase the risk of ischemia. It is estimated that over a third of all surgical patients have ischemic heart disease. Puelacher et al. (2015) reported 40% …


Administering Dexamethasone Prior To Peripheral Nerve Blocks, Jacob Millwood Dec 2017

Administering Dexamethasone Prior To Peripheral Nerve Blocks, Jacob Millwood

Doctoral Projects

Post-operative pain creates burdens for the patient and their family members while also drastically increasing the price of cost to the healthcare system. The Institute of Medicine Committee on Advancing Pain Research, Care, and Education states that the annual economic cost of chronic pain in adults is $560-630 billion (IOM, 2011). Regional anesthesia has been shown to provide potent analgesia that often times leads to a reduction in systemic analgesic requirements, opioid related side effects, general anesthesia requirements, and possibly the incidence of chronic post-operative pain. There are several adjunct medications that can be combined with peripheral nerve blocks to …


Proposed Practice Change To Perform Ultrasound Lung Scans Immediately Following Upper Extremity Peripheral Nerve Blocks To Rule Out A Pneumothrax, Robert Gaston Dec 2017

Proposed Practice Change To Perform Ultrasound Lung Scans Immediately Following Upper Extremity Peripheral Nerve Blocks To Rule Out A Pneumothrax, Robert Gaston

Doctoral Projects

Regional anesthesia is a technique that can be used for a variety of surgeries. There are risks involved when regional anesthesia is performed. Specifically when upper extremity nerve blocks are performed a potential complication is a pneumothorax. The purpose of this DNP project was to propose a practice change to perform ultrasound (US) lung scans immediately following upper extremity peripheral nerve blocks to rule out a pneumothorax. A needs assessment was conducted at the host facility to determine if the anesthesia providers were aware that US was a method that could be useful for detection of a pneumothorax. Currently, the …


Gulf Coast Faculty Council Minutes - December 7, 2017, Usm Gulf Coast Faculty Council Dec 2017

Gulf Coast Faculty Council Minutes - December 7, 2017, Usm Gulf Coast Faculty Council

Gulf Coast Faculty Council Minutes

No abstract provided.


Non-Invasive Positive Pressure Ventilation In The Obese Patient Population An Intervention To Enhance Oxygenation: A Quality Improvement Project, Justin Smith Dec 2017

Non-Invasive Positive Pressure Ventilation In The Obese Patient Population An Intervention To Enhance Oxygenation: A Quality Improvement Project, Justin Smith

Doctoral Projects

Obesity is a comorbidity that can be challenging to the anesthetist. Patients who are obese are at risk for rapidly desaturating after becoming apneic during the induction of a general anesthetic. This rapid desaturation is mainly attributed to their decreased oxygen reserve that is a result of their obesity. Mississippi is known to have a disproportionately higher percentage of citizens who are obese, compared to other states (Johnson, 2016). Desaturation in the obese is important to avoid because it leads to atelectasis and prolongs recovery. When an anesthetist is providing a general anesthetic to the obese patient population, it is …


Faculty Senate Minutes - December 1, 2017, Usm Faculty Senate Dec 2017

Faculty Senate Minutes - December 1, 2017, Usm Faculty Senate

Faculty Senate Minutes

No abstract provided.


The Proposed Dropping Of The Genus Crassostrea For All Pacific Cupped Oysters And Its Replacement By A New Genus Magallana: A Dissenting View, B.L. Bayne, M. Ahrens, S.K. Allen, M. Angles D'Auriac, T. Backeljau, P. Beninger, R. Bohn, P. Boudry, J. Davis, T. Green, X. Guo, D. Hedgecock, A. Ibarra, P. Kingsley-Smith, M. Krause, C. Langdon, S. Lapegu, C. Li, D. Manahan, R. Mann, L. Perez-Paralle, E.N. Powell, P.D. Rawson, D. Speiser, J.-L. Sanchez, S. Shumway, H. Wang Dec 2017

The Proposed Dropping Of The Genus Crassostrea For All Pacific Cupped Oysters And Its Replacement By A New Genus Magallana: A Dissenting View, B.L. Bayne, M. Ahrens, S.K. Allen, M. Angles D'Auriac, T. Backeljau, P. Beninger, R. Bohn, P. Boudry, J. Davis, T. Green, X. Guo, D. Hedgecock, A. Ibarra, P. Kingsley-Smith, M. Krause, C. Langdon, S. Lapegu, C. Li, D. Manahan, R. Mann, L. Perez-Paralle, E.N. Powell, P.D. Rawson, D. Speiser, J.-L. Sanchez, S. Shumway, H. Wang

Faculty Publications

No abstract provided.


Thresholds Of Sea-Level Rise Rate And Sea-Level Rise Acceleration Rate In A Vulnerable Coastal Wetland, Wei Wu, Patrick D. Biber, Matthew Bethel Dec 2017

Thresholds Of Sea-Level Rise Rate And Sea-Level Rise Acceleration Rate In A Vulnerable Coastal Wetland, Wei Wu, Patrick D. Biber, Matthew Bethel

Faculty Publications

Feedbacks among inundation, sediment trapping, and vegetation productivity help maintain coastal wetlands facing sea-level rise (SLR). However, when the SLR rate exceeds a threshold, coastal wetlands can collapse. Understanding the threshold helps address key challenges in ecology—nonlinear response of ecosystems to environmental change, promotes communication between ecologists and resource managers, and facilitates decision-making in climate change policies. We studied the threshold of SLR rate and developed a new threshold of SLR acceleration rate on sustainability of coastal wetlands as SLR is likely to accelerate due to enhanced anthropogenic forces. Deriving these two thresholds depends on the temporal scale, the interaction …


Genome Sequences Of Mycobacteriophages Amgine, Amohnition, Bella96, Cain, Darthp, Hammy, Krueger, Lasthope, Peanam, Phelpsodu, Phrank, Sirphilip, Slimphazie, And Unicorn, Kirk R. Anders, Nazir Barekzi, Aaron A. Best, Gregory D. Frederick, Dmitri V. Mavrodi, Edwin Vasquez, Sea-Phages, Nana Yaa A. Amoh, Frederick N. Baliraine, William J. Buchser, Thomas P. Cast, Carmen E. Chamberlain, Hui-Min Chung, William A. D'Angelo, Christian T. Farris, Mariceli Fernandez-Martinez, Haley D. Fischman, Mark H. Forsyth, Anna G. Fortier, Kara F. Gallo, Greta J. Held, Miguel A. Lomas, Natalia Y. Maldonado-Vasquez, Claudia H. Moonsammy, Peace Namboote, Sudip Paudel, Sarah-Elizabeth Polley, Gabriella Reyes, Michael R. Rubin, Margaret S. Saha, Joseph Stukey, Tristan D. Tobias, Rebecca A. Garlena, Ty H. Stoner, Steven G. Cresawn, Deborah Jacobs-Sera, Welkin H. Pope, Daniel A. Russell, Graham F. Hatfull Dec 2017

Genome Sequences Of Mycobacteriophages Amgine, Amohnition, Bella96, Cain, Darthp, Hammy, Krueger, Lasthope, Peanam, Phelpsodu, Phrank, Sirphilip, Slimphazie, And Unicorn, Kirk R. Anders, Nazir Barekzi, Aaron A. Best, Gregory D. Frederick, Dmitri V. Mavrodi, Edwin Vasquez, Sea-Phages, Nana Yaa A. Amoh, Frederick N. Baliraine, William J. Buchser, Thomas P. Cast, Carmen E. Chamberlain, Hui-Min Chung, William A. D'Angelo, Christian T. Farris, Mariceli Fernandez-Martinez, Haley D. Fischman, Mark H. Forsyth, Anna G. Fortier, Kara F. Gallo, Greta J. Held, Miguel A. Lomas, Natalia Y. Maldonado-Vasquez, Claudia H. Moonsammy, Peace Namboote, Sudip Paudel, Sarah-Elizabeth Polley, Gabriella Reyes, Michael R. Rubin, Margaret S. Saha, Joseph Stukey, Tristan D. Tobias, Rebecca A. Garlena, Ty H. Stoner, Steven G. Cresawn, Deborah Jacobs-Sera, Welkin H. Pope, Daniel A. Russell, Graham F. Hatfull

Faculty Publications

We report the genome sequences of 14 cluster K mycobacteriophages isolated using Mycobacterium smegmatis mc2155 as host. Four are closely related to subcluster K1 phages, and 10 are members of subcluster K6. The phage genomes span considerable sequence diversity, including multiple types of integrases and integration sites.


A Microdebitage Analysis Of The Winterville Mounds Site (22ws500), Stephanie Leigh-Ann Guest Dec 2017

A Microdebitage Analysis Of The Winterville Mounds Site (22ws500), Stephanie Leigh-Ann Guest

Master's Theses

The Winterville Mounds site (22WS500) was a civic ceremonial center of 23 mounds and is located near Greenville in northwest Mississippi. Winterville excavations as field schools are ongoing since 2005 under the direction of Dr. H. Edwin Jackson of The University of Southern Mississippi. Examination of the >1/4" (6.35 mm) mesh screened lithic material provided mixed results of reduction stages and lacked variety of non-local materials (Guest 2006, Winter 2009, McClendon 2012). Authors of these analyses called for the examination of the 1/16” (1.58 mm) water-screened lithic material to identify reduction stages and traces of non-local materials to provide evidence …


"And A Sad Ditty Of This Story Born": Regeneration Through Decay In John Keats's Isabella, Erica Van Schaik Dec 2017

"And A Sad Ditty Of This Story Born": Regeneration Through Decay In John Keats's Isabella, Erica Van Schaik

Master's Theses

John Keats’s Isabella; or the Pot of Basil (1818) has been read, like many of Keats’s of works, as an allegory for the death that surrounded the poet and his life’s tragic circumstances. Isabella has also been studied in regard to its gothic horror elements. Such previous readings identify a theme of mortality and decay within the poem, but I argue these themes serve a larger purpose, one related to the possibilities created by regeneration. Isabella, a young woman whose lover, Lorenzo, is murdered by her own brothers, removes Lorenzo’s head from his corpse and places it in a potted …


The Legacy Of British Rule On Lgbt Rights In Jamaica And The Cayman Islands, Zachary Stewart Dec 2017

The Legacy Of British Rule On Lgbt Rights In Jamaica And The Cayman Islands, Zachary Stewart

Master's Theses

This thesis explores the relationship between British colonial influence and Lesbian, Gay, Bisexual, and Transgender (LGBT) rights in the Caribbean. Comparing the Cayman Islands, a British Overseas Territory, and Jamaica, an independent former colony of the United Kingdom, the situation for LGBT people is evaluated. While Jamaica has serious abuses and a concerning situation for the human rights of LGBT people, the Cayman Islands’ LGBT community’s position is far less concerning. Owing to its continued connection to the United Kingdom of Great Britain and Northern Ireland, the Cayman Islands’ LGBT rights situation is much less dire. Through British influence via …


Comparison Study Between Post-Fermentation Stillage And Pre-Fermentation Mash Utilizing Acidification And Steam Explosion Techniques For Cellulose Saccharification, Daniel Mckee Dec 2017

Comparison Study Between Post-Fermentation Stillage And Pre-Fermentation Mash Utilizing Acidification And Steam Explosion Techniques For Cellulose Saccharification, Daniel Mckee

Master's Theses

Pre-fermentation mash fiber and post-distillation stillage fiber were examined and compared using a variety of preparatory techniques to determine the better source for cellulose fiber saccharification. Once screened, dried, and diluted to a 10% solution, mash fiber and stillage fiber were exposed to increasing temperatures for steam explosion techniques as well as increasing acidification techniques. Both underwent enzymatic saccharification to convert the exposed cellulose to glucose and other sugars. Once the optimum steam explosion technique parameters and acidification parameters were determined to be 2.5% sulfuric acid at 127.8°C for 1 hour, a comparison of the saccharification of pre-fermentation mash fiber …


Rethinking Civil Wars: An Overview Of Literature And The Syrian Conflict Towards A Structural Definition Of Civil War, Mphatso Kaufulu Dec 2017

Rethinking Civil Wars: An Overview Of Literature And The Syrian Conflict Towards A Structural Definition Of Civil War, Mphatso Kaufulu

Master's Theses

Civil War is a term often used to classify a type of conflict which arises within states. This being so, the exact criteria upon which such a classification of conflict is arrived remains unclear. Additionally, political, dispensational and ideological currents have influenced the classification of conflicts within states by different scholars, so that the determination of conflicts as being civil wars rather than some other kind of intra-state conflict can seem arbitrary. Beyond just the academic implications of this arbitrariness are policy impacts as well. This is because the term civil war carries with it certain implications about the nature …


A Neuroprotective Role For Mir-1017, A Non-Canonical Mirna, Matthew De Cruz Dec 2017

A Neuroprotective Role For Mir-1017, A Non-Canonical Mirna, Matthew De Cruz

Master's Theses

miRNAs are post-transcriptional regulators of gene expression, with numerous being involved in neurobiology. Within the human genome a quarter of the identified miRNA loci derive from a class of miRNAs termed tailed mirtrons. Despite the identification of this large population of miRNA, no functional studies have been conducted to identify their role. In this study we examined the highly expressed and deeply conserved Drosophila 3’ tail mirtron, miR-1017, as a candidate to elucidate tailed mirtron functionality. We identified acetylcholine receptor transcripts, Da5 and Da2, as bona fide targets for miR-1017. Interestingly, Da2 is also the host transcript for miR-1017. We …


Impacts Of Oil Exposure During Early Life Development Stages In Sheepshead Minnows (Cyprinodon Variegatus) Under Different Environmental Factors, Danielle Simning Dec 2017

Impacts Of Oil Exposure During Early Life Development Stages In Sheepshead Minnows (Cyprinodon Variegatus) Under Different Environmental Factors, Danielle Simning

Master's Theses

The release of approximately 5 million barrels of crude oil into the northern Gulf of Mexico during the 2010 Deepwater Horizon oil spill jeopardized estuarine ecosystem health from Texas to Florida. These estuarine habitats, which serve as nurseries for many important fisheries are also prone to rapid fluctuations in environmental stressors such as oxygen concentration, and salinity. The consequence of combined exposure to crude oil and suboptimal environmental factors during early life stage development of fish is still largely unknown. The objective of this project was to investigate the impacts of exposure to crude oil in combination with varying environmental …


Examining Movement Dynamics Of The Gulf Menhaden Fishery Using An Individual-Based Model, Robert D. Trigg Iii Dec 2017

Examining Movement Dynamics Of The Gulf Menhaden Fishery Using An Individual-Based Model, Robert D. Trigg Iii

Master's Theses

This study investigates the movement and harvest dynamics of the Gulf Menhaden Brevoortia patronus fishery. The fishery-dependent data collected by NOAA (years 2006-2009 and 2011) describe vessel-specific information on catch locations (latitude and longitude) and magnitude of harvest in metric tons (mt). A series of probability distribution functions (PDFs) were fit to the frequency distributions of number of harvests per day (Poisson), between-harvest distances (gamma), and harvest magnitude (log-normal). These analyses were used to inform an individual-based model (IBM). The IBM was run under several different spatial restriction regimes, including (1) current regulations in Texas, Louisiana, Mississippi, and Alabama; (2) …


Sony Pictures And The U.S. Federal Government: A Case Study Analysis Of The Sony Pictures Entertainment Hack Crisis Using Normal Accidents Theory, Mohamed Ismail Dec 2017

Sony Pictures And The U.S. Federal Government: A Case Study Analysis Of The Sony Pictures Entertainment Hack Crisis Using Normal Accidents Theory, Mohamed Ismail

Master's Theses

In this case study, I analyze the 2014 North Korean computer database hack of Sony Pictures Entertainment (SPE), a serious national security crisis of cyberterrorism. I utilize Normal Accidents theory as a lens, to help explain how the accident within one system (SPE) and later crisis lead to the interaction with a second system (U.S. Federal Government), the development of a new crisis, and the need for a crisis response from system two. The evolution of a single organization’s accident into a national security crisis does not occur without specific complex interactions that take place to connect the two systems …