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Extraction Of Small Boat Harmonic Signatures From Passive Sonar, George Lloyd Ogden

Dissertations and Theses

This thesis investigates the detection and classification of small boats using a passive sonar system. Noise radiated from a small boats consists of broadband noise and harmonically related tones that correspond to parameters in the boats engine and propeller. A novel signal processing method for detection and discrimination of noise radiated from small boats has been developed. There are two main components to the algorithm. The first component detects the presence of small boats by the harmonic tonals radiated from the boat propeller and engine. The second component was designed to extract the a signature from passive sonar data. The …

Characterization Of Mesoscopic Fluid-Like Films With The Novel Shear-Force/Acoustic Microscopy, Xiaohua Wang

Dissertations and Theses

The shear force mechanism has been utilized as a distance regulation method in scanning probe microscopes. However, the origin of shear force is still unclear. One of the most important reasons for the shear-force damping is due to the presence of a water contamination layer at the sample surface in ambient conditions. Understanding the behavior of such mesoscopic fluid-like films is of significance for studies of not only scanning probe microscopy but also other complex surface phenomena, such as nanotribology, lubrication, adhesion, wetting, and the microfluidity of biological membranes. This thesis investigates, in particular, the dynamics of mesoscopic fluids confined …

The Transnational Networks Of Cultural Commodities: Peruvian Food In San Francisco, Kelsey Ann Brain

Dissertations and Theses

In a setting of increased movement, communication, and flows across space, commodity chain networks bring valued cultural commodities to transnational communities. This research examines the networks bringing foreign cuisine ingredients to Peruvian transnational communities in San Francisco, California. It seeks to answer three inter-related questions: 1) What are the origins and transportation networks bringing Peruvian food items to San Francisco; 2) Who controls and benefits from the movement of this food and resulting capital; and 3) How do networks vary for different classes of end consumers?

Chefs of ten Peruvian restaurants and ten Peruvian migrants in the San Francisco area …

The Use Of Tooth Pit And Tooth/Jaw Measurements To Identify Carnivore Taxa Responsible For Damage On Scavenged Bone, Jennifer L. Foust

Graduate Student Theses, Dissertations, & Professional Papers

Forensic anthropologists are often asked to analyze and interpret human remains that have been modified or damaged by predators and/or scavengers (White 2000; James et al. 2005; Dupras et al. 2006). The goal of this study is to determine whether it is possible to distinguish carnivore tooth mark characteristics from other carnivore tooth mark characteristics through two separate analyses: first by examination of tooth pitting and second from carnivore tooth and jaw measurements. This is accomplished by visual analysis and measurements of tooth pits left on faunal bones processed by an experimental wolf group as well as carnivore tooth and …

Using Patchy Plant Invasions To Understand How Diffuse Interactions Modify Facilitation And Competition, Kerry Lee Metlen

Graduate Student Theses, Dissertations, & Professional Papers

Indirect interactions among plants promote conditionality in competitive outcomes that affect plant community structure and function. I utilized spatially patchy distributions of two invasive exotic plants, Centaurea stoebe and Bromus tectorum, to explore conditionality in plant interactions and the implications of this conditionality for community invasibility. Additionally, I expanded this research to investigate how these two invaders interact with each other as they overrun native ecosystems. Throughout intermountain prairie of western Montana Centaurea was found at high abundances in open prairie, but was a relatively minor component of the plant community under isolated Pinus ponderosa. In contrast, Bromus …

August Stream Discharge Trends Portend Impacts Of Climate Change In The Northern Rockies, Jason Christopher Leppi

Graduate Student Theses, Dissertations, & Professional Papers

This thesis is composed of two potential professional papers written to be independent of each other. Both papers were written to explore changes in late summer discharge patterns across the Northern Rockies (NR). Water in the interior western United States is a vital resource and the demand for this resource has increased. Watersheds in the NR are mainly snowmelt dominated in that they depend on the seasonal flux of snow-melt during dry periods. During the summer months August is a critical time for aquatic ecosystems due to typical low discharge and warm air temperatures. During this period water temperatures can …

Disquietude, Pamela A. Caughey

Graduate Student Theses, Dissertations, & Professional Papers

ARTIST STATEMENT In a post 9/11 world, the global war on terrorism influences our thinking and casts a perpetual shadow that is inescapable. We live in a state of disquietude. Amidst unspeakable events and traumas, we experience censored media, invasion of privacy in the name of heightened "homeland security," eroded freedom of speech, and constant rhetoric serving the politics of fear. Art in the age of terrorism is an attempt to bring interpretation and meaning to these timely issues by portraying multiple perspectives, which address the philosophical, social, political and cultural interventions that the war against terrorism has created. It …

Inbetween, Cathryn Sugg

Graduate Student Theses, Dissertations, & Professional Papers

“I work in the gap between art and life.” So said Robert Rauschenberg, of his own art, decades ago. Little did I know that my experiences in graduate school, and the translation of those experiences into artworks, would be defined by “gaps”: the physical gap of 450 miles, separating me from my husband, the intellectual gap representing the types of conversation I found myself engaging in, the illusive gaps between the different “roles” I have always used to define myself. In the past three years I developed an awareness of my social situation, during which I have found (and continue …

Recollection, Rebecca Gehres Weed

Graduate Student Theses, Dissertations, & Professional Papers

Recollect is an investigation of personal histories and myths relative to the experience of time and willful manipulation of said time. Depicted in the traditional medium of oil painting an autobiographical account is laid out. Not in chronological order, nor in any sense depicting actual events, these paintings are an attempt to identify and recreate distinguishing factors in my life. Acquiring a personal mythology is the prerogative of any and all people. History on a global scale has been written and rewritten under the influence of many factors. The factors that cause us to manipulate our own personal pasts are …

Resource Debate In Southwest Alaska: The Bristol Bay Fishery And The Pebble Mine, Ethan Jerome Gottschalk

Graduate Student Theses, Dissertations, & Professional Papers

Bristol Bay, in Southwest Alaska, is the largest sockeye salmon fishery in the world. After an almost total collapse of salmon numbers in the mid 1970’s, the salmon have returned and average in the tens of millions every year. The salmon play a vital economic, cultural, and subsistence role in the lives of the people who call Bristol Bay home. At present there is a plan to develop a low-grade, but substantial, mineral deposit that consists primarily of copper, gold, and molybdenum. The estimated value of the minerals present is more than $500 billion. This plan is known as the …

Resource Selection And Abundance Estimation Of Moose: Implications For Caribou Recovery In A Human Altered Landscape, Wibke Peters

Graduate Student Theses, Dissertations, & Professional Papers

Woodland caribou (Rangifer tarandus caribou) are threatened across Canada due to human disturbance altering predator-prey dynamics. The niche specialization of caribou enables them to survive in nutrient-poor habitats spatially separated from other ungulates and their shared predators. The conversion of old-growth forests to young seral stands is hypothesized to increase the abundance of moose (Alces alces), the dominant prey for wolves (Canis lupus), resulting in apparent competition. We first examined habitat selection of moose in 2 regions with differing intensities of human disturbance in west-central Alberta and east-central British Columbia to assess how human disturbance affects the spatial separation of …

Ruffled Feathers: Shared Narratives In The Sage-Grouse Management Conflict In Sublette County, Wyoming, Maureen A. Essen

Graduate Student Theses, Dissertations, & Professional Papers

The tense conflict over sage grouse management in the West, where livelihoods have been pitted against the possibility of an endangered species listing, has been ongoing for many years and has been described as being as tense as the spotted owl conflict in the Northwest in the 1990s. This research is designed to highlight the different frames or narratives within the sage grouse debate in Sublette County, Wyoming while exploring a resurging research methodology. Q methodology, a method intended to identify distinct viewpoints within a sample was employed to understand the different narratives among these conflict parties. The Q method …

Rooted: A New Generation Of Farmers And Ranchers In Montana, Beth Jeannette Gibson

Graduate Student Theses, Dissertations, & Professional Papers

Rooted tells the stories of a new generation of farmers and ranchers in Montana through still photography and written profiles; the project is the result of 13 site visits and interviews. I define “new farmer” as a person operating their own agricultural business for 10 years or fewer, though this definition gets blurred and complicated when referring to people who return to their family’s farm or ranch. Admittedly, this project features only a few of the beginning farmers and ranchers in Montana. My intention is not to provide an exhaustive study of the next generation of farmers and ranchers in …

S-Nitrosothiols: Formation, Decomposition, Reactivity And Possible Physiological Effects, Moshood Kayode Morakinyo

Dissertations and Theses

Three biologically-active aminothiols cysteamine (CA), DL-cysteine (CYSH) and DL-homocysteine, were studied in this thesis. These aminothiols react with nitrous acid (HNO₂), prepared in situ, to produce S-nitrosothiols (RSNOs): S-nitrosocyteamine (CANO), S-nitrosocysteine (CYSNO) and S-nitrosohomocysteine (HCYSNO). They also react with S-nitrosoglutathione (GSNO) and S-nitroso-N-acetylpenicillamine (SNAP) through a transnitrosation reaction to produce their corresponding RSNOs. A detailed kinetics and mechanistic study on the formation of these RSNOs and their subsequent decomposition to release nitric oxide (NO) were studied.

For all three aminothiols the stoichiometry of their reaction with nitrous acid is strictly 1:1 with the formation of one mole …

Managing The National Forests Through Place-Based Legislation, Martin Nie, Michael Fiebig

Society and Conservation Faculty Publications

The resolution of multiple use conflicts through place-based (national forest-specific) legislation has recently received increased interest. Most of these proposals combine wilderness designation, restoration objectives, economic development, funding arrangements, and other provisions, in a conservation package to be considered by Congress. Interest in the place-based legislative approach is precipitated by numerous factors, including perceptions of agency gridlock, problems related to forest planning, unresolved roadless and wilderness issues, and the embrace of collaboration. Though the national forests have a more unified governing framework than other federal land systems, the U.S. Forest Service has implemented place-based legislation in a few cases. This …

Influence Of Prion Protein Expression On Function Of Excitatory Amino Acid Transporters In Mouse Primary Astrocytes, Melissa Selvy Pathmajeyan

Graduate Student Theses, Dissertations, & Professional Papers

Prion protein (PrP) is expressed on a wide variety of cells and plays an important role in the pathogenesis of transmissible spongiform encephalopathies. However, its normal function remains unclear. Mice that do not express PrP exhibit deficits in spatial memory and abnormalities in excitatory neurotransmission suggestive that PrP may function in the glutamatergic synapse. Here we show that transport of D-aspartate, a non-metabolized L-glutamate analog, through excitatory amino acid transporters (EAATs) was faster in astrocytes from PrP knockout (PrP KO) mice than in astrocytes from C57BL/10 SnJ wildtype (WT) mice. Experiments using EAAT subtype-specific inhibitors demonstrated that in both WT …

Lead Exposure In Large Carnivores In The Greater Yellowstone Ecosystem, Thomas Alan Rogers

Graduate Student Theses, Dissertations, & Professional Papers

Exposure to heavy metals is a potential challenge to the conservation of wildlife. One source of heavy metal exposure known to negatively affect avian wildlife is ingestion of lead rifle bullet fragments found in discarded hunter-harvested ungulate gut piles. Some large mammalian carnivores, such as grizzly bears (Ursus arctos), are also known to target these gut piles as a food source while others, such as cougars (Puma concolor), avoid areas with high levels of human hunting pressure. I investigated whether large carnivores in the Greater Yellowstone Ecosystem were exposed to lead, and if so, if ammunition ingested from hunter-harvested gut …

South Dakota's Rental Agreements: What Is A Legal Lease?, Burton Pflueger

SDSU Extension Extra Archives

Each year the South Dakota Cooperative Ex¬tension Service receives many questions concern¬ing the legality of land lease agreements. South Dakota law addresses many aspects of land rental arrangements. The material in this publication is presented only as a guideline or reference. This material is presented with the understanding and intent that the authors are not providing legal ser-vices. South Dakota codified law has specific sec¬tions and language that pertain to agricultural and grazing leases. The following information is not intended to be an all-inclusive list of all provi¬sions of South Dakota law governing agricultural and grazing leases, but is provided …

The Filaments Of The Vicarious, Jospeh Vining

Articles

Forty years is the unit of work in focus here. You have or will have units of forty years of your own, a unit of work like this. I hope what you are doing for me is also for you and your work and your encourage-ment about the decades behind you or to come. I can best respond to your generosity with a look back at the course of this effort of mine and its internal and external connections over time, to illustrate and help us keep in mind the way we mutually influence each other in our thought and …

First Report Of Viral Pathogens Wssv And Ihhnv In Argentine Crustaceans, Sergio R. Martorelli, Robin M. Overstreet, Jean A. Jovonovich

Faculty Publications

The pathogenic penaeid shrimp viruses white spot syndrome virus (WSSV) and infectious hypodermal and hematopoietic necrosis virus (IHHNV) are reported for the first time from Argentina. They both occurred in wild crustaceans in Bahia Blanca Estuary, with WSSV detected by polymerase chain reaction (PCR) or real time quantitative PCR (qPCR) methods as infecting samples as high as 56% of the penaeid Artemesia longinaris Bate, 1888, 67% of the grapsoid Cyrtograpsus angulatus Dana, 1851, and 40% of the introduced palaemonid Palaemon macrodactylus Rathbun, 1902. The highest detected copy number was 39,600 copies/mu g DNA. IHHNV was tested for using PCR in …

Lawfare And U.S. National Security, Orde F. Kittrie

Case Western Reserve Journal of International Law

No abstract provided.

Environmental Correlates Of Abundances Of Mosquito Species And Stages In Discarded Vehicle Tires, Donald A. Yee, Jamie M. Kneitel, Steven A. Juliano

Faculty Publications

Discarded vehicle tires are a common habitat for container mosquito larvae, although the environmental factors that may control their presence or abundance within a tire are largely unknown. We sampled discarded vehicle tires in six sites located within four counties of central Illinois during the spring and summer of 2006 to determine associations between a suite of environmental factors and community composition of container mosquitoes. Our goal was to find patterns of association between environmental factors and abundances of early and late instars. We hypothesized that environmental factors correlated with early instars would be indicative of oviposition cues, whereas environmental …

Improving Teacher's Self Confidence In Learning Technology Skills And Math Education Through Professional Development, Taralynn Hartsell, Sherry S. Herron, Houbin Lewis Fang, Avinash Rathod

Faculty Publications

Using technology tools in math instruction can help stimulate problem-solving skills and understanding of math concepts. However, teachers need to be confident in their abilities to use technology tools. This study investigated whether or not a four-week in-service professional development institute that addressed the use of technology in math education helped improved the teachers’ attitude and confidence in applying technology. Findings indicated that as the teachers explored and used the available technology tools relevant to math instruction during the institute, the more proactive and motivated they became to continue their professional development in using technology for classroom instruction. They realized …

A Taxonomic Revision Of Orthotrichaceae (Musci) With Contributions To The Biosystematics Of Macromitrium Brid. In Malaysia., Yong Kien Thai

Student Works (2010-2019)

Macromitrium (Orthotrichaceae) is a large genus variously divided into infrageneric groups by different authors, resulting in a complex classification which has not included many Malaysian species. This study reviews the taxonomy of Malaysian taxa and extent of morphological variation in relation to the type group. A molecular phylogenetic study was carried out to determine if Malaysian Macromitrium species represented a homogeneous taxonomic grouping. A cladistic analysis of morphological characteristics was attempted for identifying well-defined groups and their key character states. Molecular studies included Maximum Parsimony and Bayesian Inference analyses of two chloroplast DNA regions (rps4 gene and trnL-trnF interspecific region) …

Taxonomy And Biogeography Of Sundaland Gardenia (Rubiaceae)., Low Yee Wen

Student Works (2010-2019)

In Southeast Asia, the genus Gardenia J.Ellis (Rubiaccae) is poorly understood and documented due to a lack of country revisions, contentious species delimitations and accumulation of poorly identified material in herbaria. This study reviewed the taxonomic history and position of the genus, and revised the taxonomy of Sundaland species (including those of Sumatra. the Malay Peninsula, Java_ Borneo, Palawan and adjacent islands). It includes a survey and cladistic study of morphological characteristics, and phylogenetic ana lyses using two chloroplast regions (atpB-rbcL and trnT-F) and the nuclear ITS region of representative species from Sundaland and adjoining regions. Twelve species are native …

C.S.I. Bulls#!T: The National Academy Of Sciences, Melendez-Diaz V. Massachusetts, And Future Challenges To Forensic Science And Forensic Experts, Joelle Anne Moreno

Utah Law Review

On February 18, 2009, the NAS Report revealed systemic problems across the range of forensic fields and proposed specific recommendations for the forensic communities and the courts. According to the NAS Report, the Federal Rules of Evidence and Daubert have failed to prevent our criminal courts from "continu[ing] to rely on forensic evidence without fully understanding and addressing the limitations of different forensic science disciplines. "Four months later, the Supreme Court expanded the criminal defendant’s right to confrontation, citing the “[s]erious deficiencies [that] have been found in the forensic evidence used in criminal trials.”Together, the NAS Report and Melendez-Diaz raise …

The Nas/Nrc Report On Forensic Science: A Path Forward Fraught With Pitfalls, D. Michael Risinger

Utah Law Review

American forensic science as an organized field is less than a hundred years old. On balance, this relatively young field has almost certainly had a positive impact on the accurate determination of factual guilt and factual innocence in the criminal justice system. However, in the flush of youth, it is not uncommon for claims to outrun capabilities. For several decades now, many from the academy and some from forensic science itself have pointed to weaknesses both in various forensic fields and in the structure of forensic science practice itself—weaknesses that raised the specter of a forensic science that sometimes made …

Will History Be Servitude?: The Nas Report On Forensic Science And The Role Of The Judiciary, Jane Campbell Moriarty

Utah Law Review

With other scholars, I have previously argued that because judges apparently were unwilling to exclude prosecutorial forensic evidence, perhaps judges could follow the “middle way” by limiting, if not excluding, the testimony. My suggestion (and that of others) is primarily to let the expert testify about points of comparison, without giving a conclusion to the jury. This approach does not resolve the problems identified in the report; but it possibly cures the worst problems with individualization evidence.

Stable Isotopes And Courts, James R. Ehleringer, Scott M. Matheson, Jr.

Utah Law Review

Stable isotope analysis has undergone a long gestation in university and other well-respected commercial laboratories. It is based on precise measurements using sophisticated instrumentation. Its reliability and validity for use in many fields and applications are well documented. Like DNA identification analysis, the scientific foundation for stable isotope evidence provides a strong starting point for its use in the courtroom.

Understanding Gravel Beach Dynamics By Measuring And Modelling Annual, Seasonal And Storm-Induced Morphological Response, Amaia Ruiz De Alegria Arzaburu

School of Biological and Marine Sciences Theses

The aim of this study is to gain a better understanding of the medium-term (weeks to years) morphological evolution of gravel beaches. In particular, this project aims to better understand and parameterise gravel beach/barrier evolution processes at storm, seasonal and annual time-scales. For this purpose, the morphological variability of the Slapton Sands macrotidal gravel beach/barrier (Devon, UK) was measured over a 3-year period using an Argus video-system, and carrying fortnightly and event-driven RTK-GPS field surveys. Concurrent nearshore hydrodynamic measurements were collected by a directional wave buoy located 2km off Slapton Sands, and tidal data were obtained from a tidal model …