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No abstract provided.

Extending The Quality Of Secure Service Model To Multi-Hop Networks, Paul M. Simon, Scott R. Graham

Faculty Publications

Rarely are communications networks point-to-point. In most cases, transceiver relay stations exist between transmitter and receiver end-points. These relay stations, while essential for controlling cost and adding flexibility to network architectures, reduce the overall security of the respective network. In an effort to quantify that reduction, we extend the Quality of Secure Service (QoSS) model to these complex networks, specifically multi-hop networks. In this approach, the quantification of security is based upon probabilities that adversarial listeners and disruptors gain access to or manipulate transmitted data on one or more of these multi-hop channels. Message fragmentation and duplication across available channels …

Inductor Free Methods For Breaking Dc Currents, Sudipta Sen

LSU Doctoral Dissertations

The current interruption in dc circuits is more difficult to achieve compared to the ac circuits because, unlike ac systems, dc circuits do not have the natural current zero-crossing. Presently there are three categories of basic dc breaker models namely mechanical, static, and hybrid dc breakers. As current power systems is moving more towards microgrids, DERs, Electric Vehicles (EVs), and with recent advancements in dc circuits, wide verities of dc power sources, and loads, dc breakers are very important in future system protection.

New alternate methods to break dc currents for low-voltage applications are proposed in this work. The proposed …

Limits On Parameter Estimation Of Quantum Channels, Vishal Katariya

LSU Doctoral Dissertations

The aim of this thesis is to develop a theoretical framework to study parameter estimation of quantum channels. We begin by describing the classical task of parameter estimation that we build upon. In its most basic form, parameter estimation is the task of obtaining an estimate of an unknown parameter from some experimental data. This experimental data can be seen as a number of samples of a parameterized probability distribution. In general, the goal of such a task is to obtain an estimate of the unknown parameter while minimizing its error.

We study the task of estimating unknown parameters which …

On The Variability Of Flocculated Particle Characteristics In A Shallow Estuary, G Egan, G Chang, Aj Manning, Sg Monismith, Ob Fringer

School of Biological and Marine Sciences

No abstract provided.

Dating Martian Mafic Crust; Microstructurally Constrained Baddeleyite Geochronology Of Enriched Shergottites Northwest Africa (Nwa) 7257, Nwa 8679 And Zagami, Lg Staddon, Jr Darling, Wh Schwarz, Nr Stephen, Et Al

School of Geography, Earth and Environmental Sciences

Baddeleyite (monoclinic; m-ZrO2) is a widespread accessory phase within shergottites. However, the effects of shock loading on baddeleyite U-Pb isotopic systematics, and therefore its reliability as a geochronometer within highly shocked lithologies, are less well constrained. To investigate the effects of shock metamorphism on baddeleyite U-Pb chronology, we have conducted high-resolution microstructural analysis and in-situ U-Pb isotopic measurements for baddeleyite within enriched basaltic shergottites Northwest Africa (NWA) 7257, NWA 8679 and Zagami. Electron backscatter diffraction (EBSD) analyses of baddeleyite reveal significant microstructural heterogeneity within individual thin sections, recording widespread partial to complete reversion from high-pressure (≥3.3 GPa) orthorhombic zirconia polymorphs. …

A Large West Antarctic Ice Sheet Explains Early Neogene Sea-Level Amplitude, J. W. Marschalek, L. Zurli, F. Talarico, De Flierdt T Van, P. Vermeesch, A. Carter, F Beny, V. Bout-Roumazeilles, F. Sangiorgi, S. R. Hemming, L. F. Pérez, F. Colleoni, J. G. Prebble, Peer Te Van, M. Perotti, A. E. Shevenell, I Browne, Dk Kulhanek, R. Levy, D Harwood, N. B. Sullivan, S. R. Meyers, E. M. Griffith, C. D. Hillenbrand, E. Gasson, M. J. Siegert, B Keisling, K. J. Licht, G. Kuhn, Jp Dodd, C. Boshuis, Santis L De, Rm Mckay, Jeanine Ash, F Beny, Im Browne, Giuseppe Cortese, Santis L De, Jp Dodd, Oliver M. Esper, Jenny A. Gales, Dm Harwood, Saki Ishino, Ba Keisling, S Kim, S Kim, Dk Kulhanek, Jan Sverre Laberg, R. Mark Leckie, Rm Mckay, J Müller, Mo Patterson, Bw Romans, Oe Romero, F. Sangiorgi, O Seki, Ae Shevenell, Sm Singh, De Sousa Im Cordeiro, St Sugisaki, T Van De Flierdt, Peer Te Van, W Xiao, Z Xiong

School of Biological and Marine Sciences

Early to Middle Miocene sea-level oscillations of approximately 40–60 m estimated from far-field records are interpreted to reflect the loss of virtually all East Antarctic ice during peak warmth2. This contrasts with ice-sheet model experiments suggesting most terrestrial ice in East Antarctica was retained even during the warmest intervals of the Middle Miocene. Data and model outputs can be reconciled if a large West Antarctic Ice Sheet (WAIS) existed and expanded across most of the outer continental shelf during the Early Miocene, accounting for maximum ice-sheet volumes. Here we provide the earliest geological evidence proving large WAIS expansions occurred during …

Analysis Of Camera Trap Footage Through Subject Recognition, Nirnayak Bhardwaj

Master's Projects

Motion-sensitive cameras, otherwise known as camera traps, have become increasingly popular amongst ecologists for studying wildlife. These cameras allow scientists to remotely observe animals through an inexpensive and non-invasive approach. Due to the lenient nature of motion cameras, studies involving them often generate excessive amounts of footage with many photographs not containing any animal subjects. Thus, there is a need for a system that is capable of analyzing camera trap footage to determine if a picture holds value for researchers. While research into automated image recognition is well documented, it has had limited applications in the field of ecology. This …

Employee Churn Prediction Using Logistic Regression And Support Vector Machine, Rajendra Maharjan

Master's Projects

It is a challenge for Human Resource (HR) team to retain their existing employees than to hire a new one. For any company, losing their valuable employees is a loss in terms of time, money, productivity, and trust, etc. This loss could be possibly minimized if HR could beforehand find out their potential employees who are planning to quit their job hence, we investigated solving the employee churn problem through the machine learning perspective. We have designed machine learning models using supervised and classification-based algorithms like Logistic Regression and Support Vector Machine (SVM). The models are trained with the IBM …

High Performance Document Store Implementation In Rust, Ishaan Aggarwal

Master's Projects

Databases are a core part of any application which requires persistence of data. The performance of applications involving the use of database systems is directly proportional to how fast their database read-write operations are. The aim of this project was to build a high- performance document store which can support variety of applications which require data storage and retrieval of some kind. This document store can be used as an independently running backend service which can be utilized by search engines, applications which deal with keeping records, etc. We used Rust to make this document store which is fast, robust, …

Half Sick Of Shadows, By Laura Sebastian. Reviewed By Mckenzie Peck, Mckenzie Peck

Mythprint Book Reviews

Mythprint is the quarterly bulletin of the Mythopoeic Society, a nonprofit educational organization devoted to the study, discussion, and enjoyment of myth and fantasy literature, especially the works of J.R.R. Tolkien, C.S. Lewis, and Charles Williams. To promote these interests, the Society publishes three magazines, maintains a World Wide Web site, and sponsors the annual Mythopoeic Conference and awards for fiction and scholarship, as well as local discussion groups.

Using Characters To Narrow Culture Gaps, Xiangyu Han

Theses

There are a lot of different cultures around the world. It is hard for people with various cultural backgrounds to understand each other. Language is the most direct expression of cultural barriers. With the different structures of languages, communication becomes unsmooth. People can get to know each other better if we narrow down the gaps. The research here discusses the possibility of building a connection between language characters through the graphic. This work will use Chinese and English as an experimental. Images and pictures are the most visual information for people to read. And languages are the most direct information …

Characterization And Proteolytic Maturation Of Head Proteins In A Giant Salmonella Virus, Aaron Scheuch

Theses

Giant phages are of interest for biocontrol of pathogenic bacteria, however, there is limited knowledge about their biology. We study the Salmonella phage SPN3US to better understand virion structure and function. SPN3US has a contractile tail and a large T=27 icosahedral capsid that contains its 240-kb genome. Previous analyses showed the SPN3US virion is highly unusual because it contains >80 different proteins, a number that is highly unusual for a tailed phage. In addition, there is a mass (>40 MDa) of proteins ("ejection proteins") within the head that enter the Salmonella cell, possibly with roles in host takeover at …

The Artemis Project: Exploring Mass Communication Utilizing A Visual Exploration Of Influential Imagery., Brooke K. Collins

Theses

Society struggles to have difficult conversations. Polite silence is often preferred to dredging up uncomfortable topics. This silence is deafening as the majority of Americans do not consider topics such as The American Sex Trafficking Crisis. In a post-pandemic world, how do we initiate difficult conversations in both digital forums and public domains? The Artemis Project seeks to visually explore this gap in conversation, undergoing an optical investigation of utilizing design and illustrative practices as tools for mass communication. This project conceptualizes the development and application of imagery to introduce a conversation, facilitating understanding and empathy. In short, The Artemis …

Esaal (Smart Delivery System In Dubai), Banout Alketbi

Theses

Delivery sector has been facing many issues lately due to covid 19 pandemic mainly delivering items and packages late and some of them being in bad condition. The new smart delivery system ( will help in making the delivery system in Dubai more sustainable and at the same time more accurately functioning The proposed system will achieve that by running on their own tracks that are especially made for them to deliver Furthermore, the new designed system will be running and functioning depe nding on solar energy. These routes will be designed to have way to all of the areas …

Amazon Reviews Using Sentiment Analysis, Ammar Rashed Hamdallah

Theses

The intense competition to attract and maintain customers online is compelling businesses to implement novel strategies to enhance the customer experiences. It is becoming necessary for companies to examine customer reviews on online platforms such as Amazon to understand better how customers rate their products and services. The purpose of this study is to investigate how companies can conduct sentiment analysis based on Amazon reviews to gain more insights into customer experiences. The dataset selected for this capstone consists of customer reviews and ratings from consumer reviews of Amazon products. Amazon product reviews enable a business to gain insights on …

Calculating Common Vulnerability Scoring System’S Environmental Metrics Using Context-Aware Network Graphs, Christopher Thomas Enoch

Theses

Software vulnerabilities have significant costs associated with them. To aid in the prioritization of vulnerabilities, analysts often utilize Common Vulnerability Scoring System’s Base severity scores. However, the Base scores provided from the National Vulnerability Database are subjective and may incorrectly convey the severity of the vulnerability in an organization's network. This thesis proposes a method to statically analyze context-aware network graphs to increase accuracy of CVSS severity scores. Through experimentation of the proposed methodology, it is determined that context-aware network graphs can capture the required metrics to generate modified severity scores. The proposed approach has some accuracy to it, but …

Analyzing The Arguments And Opinions Surrounding Space Privatization, Henry Yaeger

Theses

As space exploration technology advances and more private actors engage in independent space activities, national governments and international organizations need to reform and modernize their approach to regulating private space activities in order to better capture and distribute the benefits of those activities. This paper examines several disparate suggestions and ideas found in 38 articles ranging from current space policy literate to international treaties in order to generate four possible policy approaches to private space activities: the Status Quo, Self-Regulation, New International Treaties and Expanded Public-Private Partnership models. It then compares and contrasts these four alternatives to determine which can …

Minimally Invasive Postmortem Intestinal Tissue Sampling In Malnourished And Acutely Ill Children Is Feasible And Informative, Erika Feutz, Wieger Voskuijl, Peter J Finch, Ta-Chiang Liu, Robert H J Bandsma, Phillip I Tarr, Christopher Alan Moxon, Kelley Vanbuskirk, Sarah Lawrence, Grace Umutesi, Kirkby D Tickell, James A Berkley, Judd L Walson, Steve Kamiza, Donna M Denno

2020-Current year OA Pubs

BACKGROUND: Intestinal disorders such as environmental enteric dysfunction (EED) are prevalent in low- and middle-income countries (LMICs) and important contributors to childhood undernutrition and mortality. Autopsies are rarely performed in LMICs but minimally invasive tissue sampling is increasingly deployed as a more feasible and acceptable procedure, although protocols have been devoid of intestinal sampling to date. We sought to determine (1) the feasibility of postmortem intestinal sampling, (2) whether autolysis precludes enteric biopsies' utility, and (3) histopathologic features among children who died during hospitalization with acute illness or undernutrition.

METHODS: Transabdominal needle and endoscopic forceps upper and lower intestinal sampling …

Stat3 Inhibitor Mitigates Cerebral Amyloid Angiopathy And Parenchymal Amyloid Plaques While Improving Cognitive Functions And Brain Networks, Jogender Mehla, Itender Singh, Deepti Diwan, James W Nelson, Molly Lawrence, Eunjae Lee, Adam Q Bauer, David M Holtzman, Gregory J Zipfel

2020-Current year OA Pubs

Previous reports indicate a potential role for signal transducer and activator of transcription 3 (STAT3) in amyloid-β (Aβ) processing and neuritic plaque pathogenesis. In the present study, the impact of STAT3 inhibition on cognition, cerebrovascular function, amyloid pathology, oxidative stress, and neuroinflammation was studied using in vitro and in vivo models of Alzheimer's disease (AD)-related pathology. For in vitro experiments, human brain vascular smooth muscle cells (HBVSMC) and human brain microvascular endothelial cells (HBMEC) were used, and these cultured cells were exposed to Aβ peptides followed by measurement of activated forms of STAT3 expression and reactive oxygen species (ROS) generation. …

Ward Based Goal Directed Fluid Therapy (Gdft) In Acute Pancreatitis (Gap) Trial: A Feasibility Randomised Controlled Trial [Isrctn 36077283], F Froghi, F Soggiu, F Ricciardi, C Vindrola-Padros, L Floros, D Martin, H Filipe, M Varcada, K Gurusamy, S Bhattacharya, A Fanshawe, B Dolcea, P Mathur, B Davidson

Peninsula Medical School

Background: Goal-directed fluid therapy (GDFT) reduces complications in patients undergoing major general surgery. There are no reports of cardiac output evaluation being used to optimise the fluid administration for patients with acute pancreatitis (AP) in a general surgery ward. Method: 50 patients with AP were randomised to either ward-based GDFT (n=25) with intravenous (IV) fluids administered based on stroke volume optimisation protocol or standard care (SC) (n=25), but with blinded cardiac output evaluation, for 48-hours following hospital admission. Primary outcome was feasibility. Results: 50 of 116 eligible patients (43.1%) were recruited over 20 months demonstrating feasibility. 36 (72%) completed the …

P-P06 Ward Based Goal Directed Fluid Therapy (Gdft) In Acute Pancreatitis (Gap) Trial: A Feasibility Randomised Controlled Trial [Isrctn 36077283], F Froghi, F Soggiu, F Ricciardi, C Vindrola-Padros, L Floros, D Martin, H Filipe, M Varcada, K Gurusamy, S Bhattacharya, A Fanshawe, B Dolcea, P Mathur, B Davidson

Peninsula Medical School

No abstract provided.

The Five Ds Of Outpatient Antibiotic Stewardship For Urinary Tract Infections

Faculty, Staff and Students Publications

Urinary tract infections (UTI) are one of the most common indications for antibiotic prescriptions in the outpatient setting. Given rising rates of antibiotic resistance among uropathogens, antibiotic stewardship is critically needed to improve outpatient antibiotic use, including in outpatient clinics (primary care and specialty clinics) and emergency departments. Outpatient clinics are in general a neglected practice area in antibiotic stewardship programs, yet most antibiotic use in the United States is in the outpatient setting. This article provides a comprehensive review of antibiotic stewardship strategies for outpatient UTI in the adult population, with a focus on the "five Ds" of stewardship …

Structural Stability Of Short Latency Alfalfa-Based Pastures In The Humid Pampa, Argentina, R. O. Refi, B. Martín

IGC Proceedings (1977-2023)

The aim of this study was to search the effects of grazing intensity and nitrogen fertilization on the structural stability of a mixed pasture composed by alfalfa (latency group 9), brome grass, tall fescue and white clover, sown in April 1997. Rotational grazing was carried out with dairy cattle with high intensity (HI: up to 3-4 cm) or moderate intensity (LI: up to 8-10 cm), whenever the alfalfa showed basal regrowth. According to a split-plot design, grazing intensities were subdivided to assign three levels of nitrogen fertilization: N0, without fertilization; N1 with 50 kg N/ha per year; and N2 with …

Late Winter Dietary Overlap Among Greater Rheas And Domestic Herbivores On The Argentinean Flooding Pampa, G. Vacarezza, M. S. Cid, F. Milano

IGC Proceedings (1977-2023)

This study evaluates the dietary overlap among greater rheas (Rhea americana L.) sheep and cattle in the Flooding Pampa, Buenos Aires, Argentina during late winter, when is observed the lowest forage availability. The work was carried out with the following forage classes (FC): warm and cool season grasses and forbs (legumes and no-legumes). Diet botanical composition was estimated by microanalysis of faeces. Principal Component Analysis and Kulcyznsky´s index of similarity were used for data analysis. Rhea populations selected diets with higher forb percentages. On the contrary, vegetation structure and their own morpho-physiology conditioned cattle to diets almost exclusively gramineous. …

Beef Calf Production Using Year-Round Grazing On Tropical Grass Pasture In Summer Combined With Cool Temperate Grass Pasture In Winter, Y. Nakanishi, K. Shindou, S. Watanabe, K. Yamamoto, K. Hagino

IGC Proceedings (1977-2023)

Bahiagrass (Paspalum notatum Fluegge) showed a poor quality with low crude protein in summer but blood biochemical levels of grazing beef cows were similar to drylot feeding cows except of concentration of urea nitrogen. Italian ryegrass (Lolium multiflorum Lam) showed very good quality with high crude protein (about 20 percentage) in winter. And so, suckler cows gained live weight in winter and suckling calves were showed very high growth rate (daily gain was about 1.0 kg). Total live weight gains of grazing cows were higher than those of drylot feeding cows. Postpartum reproductive performances of grazing cows were …

Winter Grazing And Feeding Systems In Western Canada, Duane H. Mccartney, V. Baron, J. Basarab, E. Okine, G. Lastiwka, A. Depalme, D. Young

IGC Proceedings (1977-2023)

Beef cow calf producers in Western Canada are looking for methods of extending the grazing season into the winter in order to lower winter feed costs. Dry beef cows were early or late weaned and grazed during the early months of winter on late seeded barley swaths (Hardlum vulgare L.) and compared to cows fed barley silage and free choice barley straw in a feeding yard. The swath grazed barley was late seeded in June and swathed in the silage stage in mid September. Cows successfully swath grazed for three winters from mid November until mid to late February …

Forage Management For Extending The Grazing Season, David W. Koch, C. M. Lux, J. W. Flake

IGC Proceedings (1977-2023)

Studies were conducted to determine ways to extend grazing season with forages adequate to meet the needs of grazing animals and to reduce the cost of livestock production. Perennial grasses were swathed, windrowed and left in the field until they were winter-grazed with bred heifers. Corn (Zea mays L.) was stockpiled for winter grazing with lambs and ewes. Windrowed grasses increased in acid detergent fiber (ADF) and neutral detergent fiber (NDF) compared with stored hay, but crude protein content, heifer weight gain and body condition change was similar for both forages. An economic value of $218 ha^-1 from …

Acknowledgment Of Reviewers

Journal of Food and Drug Analysis

No abstract provided.

Molecular Cartography Of Residue Pesticides On Grape Surface In 3d By Ambient Ionization Tandem Mass Spectrometry, Hung Su, Tiao-Lai Huang, Cheng-Ting Chi, Yi-Tzu Cho, Chi-Wei Lee, Jingyueh Jeng, Jentaie Shiea

Journal of Food and Drug Analysis

Thermal desorption-electrospray ionization tandem mass spectrometry (TD-ESI/MS/MS) was used to characterize the residual pesticides that were collected from the surface of a grape with metallic sampling probes. Fungicides, insecticides, and miticides were detected, where results were validated by simple solvent extraction followed by gas chromatography tandem mass spectrometry and liquid chromatography tandem mass spectrometry analyses. To explore the distribution of pesticide residues on grape surfaces, 149 locations of a grape surface were collected and followed by TD-ESI/MS/MS analysis. The molecular cartography was then generated from analysis of residual pesticides on the grape surface in 3D.