Digital Commons Network^™

Reforming U.S. Export Controls Reforms: Advancing U.S. Army Interests, Richard Weitz Dr.

Books, Monographs & Collaborative Studies

The U.S. defense export system needs further major reforms to reduce inefficiencies and weaknesses. Although the International Traffic in Arms Regulations (ITAR) do help prevent potential foreign adversaries from using U.S. arms against the United States and its allies, the Regulations, as enforced, can weaken U.S. national security in other important ways. For example, by excessively impeding defense exports, the ITAR makes it more difficult for U.S. firms to sustain core U.S. defense technological and industrial advantages, decreases U.S. military interoperability with allies that purchase ITAR-free weapons from other sources, and generates other undesirable effects for the U.S. Army and …

Validating Side Scan Sonar As A Fish Survey Tool, Michael A. Bollinger

Theses and Dissertations

Hydroacoustic methods can be used to answer a variety of questions regarding fish populations and behavior. In this study, side scan sonar methodology was developed to quantify abundance and biomass and compared to established visual observation methods on SCUBA over artificial reef structures in the western Gulf of Mexico. Side scan sonar methods were equivalent to SCUBA surveys for measuring fish abundance over the same reef areas, however, abundances were significantly higher when the larger area sampled by side scan was utilized. Side scan sonar methods were also more time efficient than SCUBA, ROV and long line fishing methods (66.7%, …

Molecular Modeling And Mutational Mapping Of The Gpr119 Binding Site, Shane M. Askar

Theses and Dissertations

GPR119 receptor’s biological role in regulating glucose homeostasis has been studied extensively. Results in the scientific literature indicate that, when activated, GPR119 releases insulin in a glucose dependent manner. Currently the 3D structure of GPR119 has not been resolved.

The goal of this research is to use a combination of homology modeling and ligand docking studies to predict the binding mode of GPR119 ligands. Amino acids implicated to have direct interactions with docked ligands will further be assessed experimentally for their roll in binding and activation of GPR119. Our results indicate that residues W2656.48 and R813.28 are likely to be …

Decomposition And Nitrogen Dynamics Of Turtle Grass (Thalassia Testudinum) In A Subtropical Estuarine System, Monica Delgado

Theses and Dissertations

Seagrass beds are pivotal in the functioning of coastal ecosystems in terms of productivity, organic matter turnover and nutrient cycling. Aiming to document decay and nitrogen (N) dynamics of turtle grass (Thalassia testudinum) in a subtropical estuarine system, decomposition patterns of leaves and rhizomes were characterized and compared. Nitrogen usage during decomposition of tissues, and of live tissues and epiphytes growing on live leaves, was also quantified and compared. Stable isotope ratios allowed tracing N within the seagrass bed, following N incorporation into seagrass tissues from the surrounding media (water, sediment). Leaves had a higher N content and decomposed at …

A Handcrafted Multi-Branch Nerve Scaffold For In Vivo Peripheral Nerve Regeneration, Ridwan Fayaz Hossain

Theses and Dissertations

Arm and leg peripheral nerve injuries contribute largely to functional disability. These injuries seldom affect a single-line nerve; rather the injury goes beyond and disrupts the nerve tissue across multiple nerve paths. Here we investigate handcrafted PDMS based multi-branch nerve guidance conduit, which addresses this crucial branching from the sciatic nerve to aid with the regeneration to their appropriate distal targets. The design concept of the developed multiple branch nerve scaffolds is not specific for the sciatic nerve but can be modified for general use of all peripheral nerves and additional applications. Microchannels are also fabricated into a device in …

Identifying Elements Of A Climate For Sustainability, Rosemond A. Moore

Theses and Dissertations

Sustainability as an area of research is growing in importance not only among academicians, but practitioners as well. A 2010 Accenture study of 700 CEOs found that 93% identified sustainability as important to the long term future success of their organizations. Utilizing CEO sustainability statements Content Analysis was conducted to understand and identify those key elements necessary for a climate for sustainability. A climate for sustainability is one in which sustainability policies, practices, and procedures drive behaviors that are rewarded, supported, and expected within an organization.

Content analysis of CEO statements from organizations recognized for both their sustainability practices as …

Mack Thomas: The Total Beat, James B. Welton

Theses and Dissertations

Mack Thomas enjoyed both an audience seat and a role in the Beat Generation. He lives the life that fits one of his mottos, “if at first you don’t succeed, quit”. Thomas was the author of two autobiographical novels Gumbo and The Total Beast, a jazz and literature columnist for Grove Press in the 1950s and 1960s. Thomas was also a jazz musician worthy to share the stage with Miles Davis, inventor, and entrepreneur among numerous other interests. His friendship with William S. Burroughs was forged by their Texas ties while they were neighbors living in Paris, France and offered …

The Human Gut Mycobiome: Pitfalls And Potentials — A Mycologist's Perspective, Mallory J. Suhr, Heather E. Hallen-Adams

Department of Food Science and Technology: Faculty Publications

We have entered the Age of the Microbiome, with new studies appearing constantly and whole journals devoted to the human microbiome. While bacteria outnumber other gut microbes by orders of magnitude, eukaryotes are consistently found in the human gut, and are represented primarily by the fungi. Compiling 36 studies spanning from 1917 to 2015, we found at least 267 distinct fungal taxa have been reported from the human gut, and seemingly every new study includes one or more fungi not previously described from this niche. This diversity, while impressive, is illusory. If we examine gut fungi, we will quickly observe …

A Synthetic Porcine Reproductive And Respiratory Syndrome Virus Strain Confers Unprecedented Levels Of Heterologous Protection, Hiep Vu, Fangrui Ma, William W. Laegreid, Asit K. Pattnaik, David Steffen, Alan R. Doster, Fernando Osorio

School of Veterinary and Biomedical Sciences: Faculty Publications

Current vaccines do not provide sufficient levels of protection against divergent porcine reproductive and respiratory syndrome virus (PRRSV) strains circulating in the field, mainly due to the substantial variation of the viral genome. We describe here a novel approach to generate a PRRSV vaccine candidate that could confer unprecedented levels of heterologous protection against divergent PRRSV isolates. By using a set of 59 nonredundant, full-genome sequences of type 2 PRRSVs, a consensus genome (designated PRRSV-CON) was generated by aligning these 59 PRRSV full-genome sequences, followed by selecting the most common nucleotide found at each position of the alignment. Next, the …

Dental Pulp Stem Cells: Biology And Use For Periodontal Tissue Engineering, Nahid Y. Ashri, Sumaiah A. Ajlan, Abdullah M. Aldahmash

Saudi Medical Journal

Inflammatory periodontal disease is a major cause of loss of tooth-supporting structures. Novel approaches for regeneration of periodontal apparatus is an area of intensive research. Periodontal tissue engineering implies the use of appropriate regenerative cells, delivered through a suitable scaffold, and guided through signaling molecules. Dental pulp stem cells have been used in an increasing number of studies in dental tissue engineering. Those cells show mesenchymal (stromal) stem cell-like properties including self-renewal and multilineage differentiation potentials, aside from their relative accessibility and pleasant handling properties. The purpose of this article is to review the biological principles of periodontal tissue engineering, …

Good Enough To Be Getting On With? The State Of Federal Sentencing Legislation, December 2015, Frank O. Bowman Iii

Faculty Publications

This article traces the evolution of the sentencing reform debate in Congress in 2015. It summarizes and compares the six major pieces of sentencing legislation introduced in 2015. It describes the progression from con­ceptually simple, broadly applicable reforms of mandatory minimum sentences to the regime of complex and highly restrictive rules relaxing mandatory minimum sentences for a modest subset of federal defendants found in the bills that passed the Senate and House Judiciary Committees. The article summarizes some of the concerns voiced about he sentencing provisions of the various bills. Finally, it discusses the three pending bills relating to back-end …

Essays On Managing Intuition For Strategic Option Generation, Tejpavan Singh Gandhok

Dissertations and Theses Collection (Open Access)

This dissertation comprises of two essays. The first essay seeks to examine the issue of 'slow' (i.e. gestation periods over hours, weeks and months) forms of intuition and their complex interactions with analytic thinking, especially in the context of breakthrough ideation/ complex problem solving. This exploratory study with qualitative observations with a small set of experienced practitioners supports the sparse academic literature in this area that managers do rely on long gestation forms of sub-conscious processing and that these forms of thinking manifest themselves in different forms with varying degrees of confidence and positive emotion/ affect (popularly referred to as …

Rethinking America's Grand Strategy: Insights From The Cold War, Hal Brands

The US Army War College Quarterly: Parameters

No abstract provided.

Landpower And American Credibility, Michael Allen Hunzeker, Alexander Lanoszka

The US Army War College Quarterly: Parameters

No abstract provided.

America's All Volunteer Force: A Success?, Louis G. Yuengert

The US Army War College Quarterly: Parameters

No abstract provided.

From The Editor, Antulio J. Echevarria

The US Army War College Quarterly: Parameters

No abstract provided.

Book Reviews, Usawc Press

The US Army War College Quarterly: Parameters

No abstract provided.

Winter 2015 Index, Usawc Press

The US Army War College Quarterly: Parameters

No abstract provided.

Will Army 2025 Be A Military Profession?, Don M. Snider

The US Army War College Quarterly: Parameters

No abstract provided.

Theory Of Mind Indexes The Broader Autism Phenotype In Siblings Of Children With Autism At School Age, Tawny Tsang, Kristen Gillepsie-Lynch, Ted Huntman

Publications and Research

Subclinical variants of the social-communicative challenges and rigidity that define autism spectrum disorder (ASD) are known as the broader autism phenotype (BAP). The BAP has been conceptualized categorically (as specific to a subset of relatives of individuals with ASD) and dimensionally (as continuously distributed within the general population). The current study examined the compatibility of these two approaches by assessing associations among autism symptoms and social-communicative skills in young school-age children with ASD, children who have a sibling with ASD, and children without a sibling with ASD. Autism symptomswere associated with reducedTheory ofMind (ToM), adaptive skills, cognitive empathy, and language …

Stella: A Python-Based Domain-Specific Language For Simulations, David Mohr

Computer Science ETDs

Stella is a domain-specific language that (1) has single thread performance competitive with low-level languages, (2) supports object-oriented programming (OOP) to properly structure the code, and (3) is very easy to use. Instead of prototyping in a high-level language and then rewriting in a lower-level language, Stella is embedded in Python, is transparently usable, retains some OOP features, compiles to machine code, and executes at speed similar to C. Stella's source code is compatible with Python, and allows easy integration of C libraries. Its features are focused on the needs of scientific simulations. Other projects to speed up Python focus …

Evolving Efficient Foraging Behavior In Biologically-Inspired Robot Swarms, Joshua Peter Hecker

Computer Science ETDs

Human beings are driven to explore distant new worlds as we seek to better understand our place in the Universe. Because of the inherent dangers of human spaceflight, we often send robots as surrogate explorers, controlled from millions of miles away by teams of capable rover drivers here on Earth. As technology continues to advance, scientists and engineers aspire to build low-cost, durable, fully autonomous rovers to succeed today's tele-operated extraplanetary explorers. Here we aim to advance this goal by designing and programming robots that can successfully navigate unknown and variable environments. We present a swarm robotics system that mimics …

Behavioral Assessment And Referral For Patients With Cardiovascular Disease, Sarah June Sadeghi

Loma Linda University Electronic Theses, Dissertations & Projects

Cardiovascular disease (CVD) is the most frequent cause of death in the United States. CVD affects more than a third of the U.S. population translating to approximately $431.8 billion in direct and indirect costs (Rosamond et al., 2007 as cited in Hunter et al., 2009). Given the significant rates of mental health issues exhibited in cardiovascular patients coupled with the lack of standard screening practices of psychosocial risk factors implicated in cardiovascular disease, the introduction of adequate assessment and referrals to mental health providers could substantially benefit health outcomes of patients.

The aims of this project are to: 1) provide …

Soft-Sediment Deformation And Dune Collapse In The Navajo Sandstone, Colby Ford

Loma Linda University Electronic Theses, Dissertations & Projects

The Canyon Overlook Trail of Zion National Park follows an outcrop of Navajo Sandstone, which displays a uniquely well-exposed assemblage of features associated with failure of the lee face of a large eolian dune, and run-out over an expanse of interdune sediments downwind of that bedform. Exposed features include dramatic folds in the interdune succession and a stacked series of thrust sheets incorporating both interdune and overlying dune deposits. Thrust surfaces display consistent strikes, parallel to those of undeformed foresets, and incorporate zones of brittle failure and fluid deformation, including folds overturned in the direction of foreset dip. These features …

Analytics In The Atp, Christopher Pillitere

All Theses

This paper applies data analysis used in the major team sports to the Association of Tennis Professional (ATP). A linear regression model is used to determine the aspects of the professional tennis most relevant to player success. Special focus is given to the effect of a player’s overreliance on his serving performance. The available data (1991-2014) is divided into two periods in an effort to observe any differences between the era dominated by Pete Sampras and the era dominated by Roger Federer. The results from the former period indicate the same effect on player success of first and second serving …

Detecting Occlusions Of Automobile Parts Being Inspected By A Camera System During Manufacturing Assembly, Jayadevan Puthumanappilly

All Theses

This thesis considers the problem of detecting occlusions in automobile parts on a moving assembly line in an automotive manufacturing plant. This work builds on the existing ``Visual Inspector'' (VI) system developed as a joint research project between Clemson University and the BMW Spartanburg manufacturing plant. The goal is to develop a method that can successfully detect occlusions in real-time. VI is a detector and classifier system that uses video cameras to determine the correct installation of a part in the assembly line. In the current version of VI, an occluded part is flagged simply as `not OK' - as …

"She Just Wanted To Get With An Athlete": The Effects Of Race And Status On The Public's Perception Of Guilt In Sexual Assault Cases, Katie Barnes

All Theses

This thesis explored the effects of race and athlete status on the public’s perceptions of guilt in sexual assault cases. It investigated how race and athlete status of a man accused of sexually assaulting a woman affected the perceived believability of the accuser and the perceived severity of the crime. It also explored the correlation between perceived guilt and rape myth acceptance. The results of this thesis did not directly support the hypotheses but hypothesis 4 was significant in suggesting that participants who gave any of the accused a lower guilt rating had higher levels of rape myth acceptance. The …

Scaled Synthetic Aperture Radar System Development, Ryan K. Green

Master's Theses

Synthetic Aperture Radar (SAR) systems generate two dimensional images of a target area using RF energy as opposed to light waves used by cameras. When cloud cover or other optical obstructions prevent camera imaging over a target area, SAR can be substituted to generate high resolution images. Linear frequency modulated signals are transmitted and received while a moving imaging platform traverses a target area to develop high resolution images through modern digital signal processing (DSP) techniques. The motivation for this joint thesis project is to design and construct a scaled SAR system to support Cal Poly radar projects. Objectives include …

Structural Damage Assessment Using Artificial Neural Networks And Artificial Immune Systems, Arthur Q.X. Shi

Master's Theses

Structural health monitoring (SHM) systems have been technologically advancing over the past few years. Improvements in fabrication and microelectronics allow the development of highly sophisticated sensor arrays, capable of detecting and transmitting an unprecedented amount of data. As the complexity of the hardware increases, research has been performed in developing the means to best utilize and effectively process the data. Algorithms from other computational fields are being introduced for the first time into SHM systems. Among them, the artificial neural network (ANN) and artificial immune systems (AIS) show great potential. In this thesis, features are extracted out of the acceleration …

Spacecraft Trajectory Optimization Suite (Stops): Optimization Of Multiple Gravity Assist Spacecraft Trajectories Using Modern Optimization Techniques, Timothy J. Fitzgerald

Master's Theses

In trajectory optimization, a common objective is to minimize propellant mass via multiple gravity assist maneuvers (MGAs). Some computer programs have been developed to analyze MGA trajectories. One of these programs, Parallel Global Multiobjective Optimization (PaGMO), uses an interesting technique known as the Island Model Paradigm. This work provides the community with a MATLAB optimizer, STOpS, that utilizes this same Island Model Paradigm with five different optimization algorithms. STOpS allows optimization of a weighted combination of many parameters. This work contains a study on optimization algorithm performance and how each algorithm is affected by its available settings.

STOpS successfully found …