Digital Commons Network^™

Change Point Detection And Estimation In Sequences Of Dependent Random Variables, Benjamin Cortese

Dissertations - ALL

Two change point detection and estimation procedures for sequences of dependent binary random variables are proposed and their asymptotic properties are explored. The two procedures are a dependent cumulative sum statistic (DCUSUM) and a dependent likelihood ratio test (LRT) statistic, which are generalizations of the independent CUSUM and LRT statistics.

A one step Markov dependence is assumed between consecutive variables in the sequence, and the performance of the DCUSUM and dependent LRT are shown to have substantially better size and power performance than their independent counterparts. In most cases, a comparison of the dependent procedures via simulation shows that the …

The Political Economy Of Ceramic Production In Barbados: From Plantation Industry To Craft Production, Dwayne Scheid

Dissertations - ALL

This project examines archaeological, historical, and ethnographic data regarding ceramic production in Barbados during the eighteenth, nineteenth, and twentieth centuries. The project uses multiscalar analysis, microhistory, and craft and industrial production as lenses for examining the production, distribution and use of local ceramics to explore changes in local craft production. The local production of ceramics allowed sugar plantation managers and owners to use local resources by providing ceramics used in the production of sugar which facilitated economic production on the island's plantations. Sugar pots and cones were used directly in the production of sugar and other ceramic items like tiles …

Human-Managed Vs. Natural Grazing Systems: Exploring Effects Of Livestock And Wildlife Grazing At Multiple Scales, Megan Esther Mcsherry

Dissertations - ALL

Grazing by large herbivores is the most prevalent land use on grassland ecosystems, which cover greater than 40% of the earth's land surface and provide critical ecological and economic benefits. As such, understanding how grazing impacts different aspects of the ecosystem is of especially great importance. This study uses a range of approaches to explore the potentially contrasting effects of grazing across human-managed, livestock-grazed systems and natural, wildlife-grazed systems. The first chapter uses a short-term, small-scale approach in assessing differences across management type in plant community composition following a relaxation of grazing. Results reveal that livestock and wildlife grazers may …

Modulation And Interactions Of Charged Biomimetic Membranes With Bivalent Ions, Adolphe Kazadi Badiambile

Dissertations - ALL

The biological membrane of an eukaryotic cell is a two-dimensional structure of mostly phospholipids with embedded proteins. This two-dimensional structure plays many key roles in the life of a cell. Transmembrane proteins, for example, play the role of a gate for different ions (such as Ca2+). Also found are peripheral proteins that are used as enzymes for different purposes in the inner leaflet of the plasma membrane. Phospholipids, in particular play three key roles. Firstly, some members of this group are used to store energy. Secondly, the hydrophobic and hydrophilic properties inherent to phospholipids enable them to be used as …

Mechanics, Shape, And Programmability In Soft Matter Systems: From Fluid Membranes To Spring And Droplet Networks, Tao Zhang

Dissertations - ALL

This thesis analyzes three different soft matter systems---membranes, polymers, and droplets---to answer questions about shape, mechanics, and programmability.

For membranes, my collaborators and I have developed a theoretical model of endocytosis in yeast. Endocytosis is the process by which a cell membrane deforms to surround extracellular material to draw it into the cell. Endocytosis in yeast involves clathrin, actin, and Bar proteins. Our model breaks up the process into three stages: (i) initiation, where clathrin interacts with the cell membrane via adaptor proteins, (ii) elongation, where the membrane is then further deformed by polymerizing actin filaments, followed by (iii) pinch-off. …

Students' Attitudes Towards Socially--But Not Scientifically--Controversial Subjects: Evaluating Ways In Which These Attitudes May Be Shifted, Benjamin Elijah Carter

Dissertations - ALL

Chapter1: Numerous anti-science bills introduced into state legislatures reference the "strengths and weaknesses" of scientific subjects, but the subjects they target, most commonly evolution and global climate change, are not topics of contention within the scientific community. This brief work provides a researched rebuttal to the notion that evolution and climate change have strengths and weaknesses of the form implied by anti-science legislation while providing examples of actual scientific disagreement about these subjects. The disagreement is not, of course, about whether or not evolution or climate change are factual occurrences, but rather over ideas such as the finer points of …

Comparison Of Cost Function Against Positional Analysis For Automated Tracking Of Three-Cell Interactions, Ye He

Dissertations - ALL

Localization and tracking of cells generates raw digital information from microscopy images, including images of stained nuclei and highly precise determination of central positions of cells, which can be analyzed for investigation of cell motility. In a previous study by this group, an algorithm termed automated contour-based tracking for in vitro environments (ACTIVE) was established for tracking large cell populations for long periods of time. For the two-cell interaction events on which ACTIVE was initially focused, error rate was reduced as much as 43% compared to a traditional positional analysis algorithm by Kilfoil and colleagues. In the present thesis, we …

Indium Telluride (In2te3) Semiconductor Cylinder Fiber Sensor, Xun Huang

Dissertations - ALL

Sensors play a very important role in control, monitor and security system. More and more novel technology has been used on a variety of sensors. This thesis investigates using semiconductor cylinder fiber as a new kind of fiber sensor.

Our main motive to do this research is based on my interest in optical fiber. After I did some experiments on the semiconductor cylinder fiber, I found some interesting characteristics. When we changed some environmental conditions around the fiber, the output light from it would change accordingly. So I did a systematic research on it.

This project uses In2Te3 as a …

Mechanically Active Electrospun Materials, Jaimee Marie Robertson

Dissertations - ALL

Electrospinning, a technique used to fabricate small diameter polymer fibers, has been employed to develop unique, active materials falling under two categories: (1) shape memory elastomeric composites (SMECs) and (2) water responsive fiber mats. (1) Previous work has characterized in detail the properties and behavior of traditional SMECs with isotropic fibers embedded in an elastomer matrix. The current work has two goals: (i) characterize laminated anisotropic SMECs and (ii) develop a fabrication process that is scalable for commercial SMEC manufacturing. The former ((i)) requires electrospinning aligned polymer fibers. The aligned fibers are similarly embedded in an elastomer matrix and stacked …

Essays On Local Political Economy In Brazil And The United States, Evan Andrews

Dissertations - ALL

This dissertation covers different aspects of political institutions and fiscal policy in local governments. The first essay examines the political consequences of an increase in the district magnitude (the number of open seats) for legislatures. The second essay studies how the size of a local legislature affects the size and composition of public spending. The third essay develops and tests a theory of how transaction costs might affect the use of earmarked revenues by local budgeting authorities. The last essay compares the relative impacts of factors that might make a local government more likely to adopt own-source revenues. These questions …

Reference Service Evaluation At An African Academic Library: The User Perspective, Lili Luo, Viscount Buer

Faculty Publications

Purpose – This paper aims to provide a detailed discussion of a large-scale library reference evaluation study conducted at the University of Education, Winneba (UEW) in Ghana. The study seeks to evaluate the reference service from the user perspective, focusing on how users use and perceive the service. Design/methodology/approach – Self-administered survey was used as the data collection instrument. One thousand questionnaires were distributed to library users in a three-week period, and the response rate was 63.7 per cent. Findings – The reference service had a high non-use rate of 42.6 per cent, which was primarily attributed to library users’ …

The Effect Of Short-Term Study Abroad On Second Language Spanish Phonetic Development, Silvina Bongiovanni, Avizia Y. Long, Megan Solon, Erik Willis

Faculty Publications

This study explores the impact of study abroad (SA) on second language Spanish phonetic development. Twenty-seven English-speaking learners of Spanish, 15 who were participating in a 4-week SA program in the Dominican Republic and 12 who were studying at their home (AH) institution, were recorded 5 weeks apart (at the approximate beginning and end of their respective programs). Recordings were analyzed acoustically, and four groups of segments were examined: word-initial /p t k/, intervocalic /b d ɡ/, intervocalic /ɾ/ and /r/, and word-final /l/. Productions at Time 1 and Time 2 as well as between the SA and AH groups …

2014-2015 Annual Report, Society Of American Archivists Student Chapter

Annual Reports

No abstract provided.

Geometry Dependence Of The Sign Problem In Quantum Monte Carlo Simulations, V. Iglovikov, Ehsan Khatami, R. Scalettar

Faculty Publications

The sign problem is the fundamental limitation to quantum Monte Carlo simulations of the statistical mechanics of interacting fermions. Determinant quantum Monte Carlo (DQMC) is one of the leading methods to study lattice fermions, such as the Hubbard Hamiltonian, which describe strongly correlated phenomena including magnetism, metal-insulator transitions, and possibly exotic superconductivity. Here, we provide a comprehensive dataset on the geometry dependence of the DQMC sign problem for different densities, interaction strengths, temperatures, and spatial lattice sizes. We supplement these data with several observations concerning general trends in the data, including the dependence on spatial volume and how this can …

Finite-Temperature Superconducting Correlations Of The Hubbard Model, Ehsan Khatami, Richard Scalettar, Rajiv Singh

Faculty Publications

We utilize numerical linked-cluster expansions (NLCEs) and the determinantal quantum Monte Carlo algorithm to study pairing correlations in the square-lattice Hubbard model. To benchmark the NLCE, we first locate the finite-temperature phase transition of the attractive model to a superconducting state away from half filling. We then explore the superconducting properties of the repulsive model for the d-wave and extended s-wave pairing symmetries. The pairing structure factor shows a strong tendency to d-wave pairing and peaks at an interaction strength comparable to the bandwidth. The extended s-wave structure factor and correlation length are larger at higher temperatures but clearly saturate …

Spectroscopic Confirmation Of The Existence Of Large, Diffuse Galaxies In The Coma Cluster, Pieter Van Dokkum, Aaron Romanowsky, Roberto Abraham, Jean Brodie, Charlie Conroy, Marla Geha, Allison Merritt, Alexa Villaume, Jielai Zhang

Faculty Publications

No abstract provided.

Shusterman’S Thinking Through The Body And Everyday Aesthetics, Tom Leddy

Faculty Publications

How does Richard Shusterman’s Thinking Through the Bodyapply to the issues of everyday aesthetics? As it turns out, many chapters contribute significantly to everyday aesthetics, in particular the work on architecture, self-styling, the body as background, lovemaking, and the process of making a photographic portrait. Shusterman’s concentration on the art of living has special importance to everyday aesthetics. Current debates within the field of everyday aesthetics also raise problems for somaesthetics. I also question the limits of somaesthetics and Shusterman’s rejection of defamiliarization in making the ordinary extraordinary.

The Scientist, 2015, San Jose State University, College Of Science

The Scientist (College of Science)

No abstract provided.

The Modernist Novel In Its Contemporaneity, Pamela L. Caughie

English: Faculty Publications and Other Works

Through the writings of Gertrude Stein, Virginia Woolf, and Nella Larsen, this chapter considers the temporality of the now, the modernist novel in its contemporaneity, to show how the ambient environment of daily life takes shape in, and shapes, the modernist novel.

White Woods And Blue Jasmine: Woody Allen Rewrites A Streetcar Named Desire, Verna Foster

English: Faculty Publications and Other Works

The film's reviewers almost invariably commented on the parallels with Streetcar, many noting, too, that Cate Blanchett, who plays the title character, Jasmine, had also successfully played Blanche Dubois in Liv Ullmann's 2009 production of the play at the Brooklyn Academy of Music.2 But for all the similarities in character types and plot structure and for all the allusions to specific lines in Streetcar, the themes of Blue Jasmine are very different from those of Williams's play because the story that Allen tells also channels the fall of Bernie Madoff and his wife, Ruth. The flashbacks are a filmic equivalent …

Raising Pan Americans: Early Women Activists Of Hemispheric Cooperation, 1916–1944, Dina Berger

History: Faculty Publications and Other Works

This article examines the early years of the Pan American Round Table (PART), a women’s group founded in Texas in 1916 that internationalized to Latin America by 1928. While men built bridges and highways that connected the United States and Latin America, women of the PART built metaphorical ones of friendship and understanding. They acted as agents of “soft” diplomacy reshaping Pan Americanism, a U.S. foreign policy goal intended to foster commercial and political ties and to spread democracy in Latin America. Their activist work on behalf of Pan Americanism became a vehicle for personal and community enrichment: through education …

Wisconsin Roots: Making History Interviews With Richard M. Jaffee And John W. Rowe, Timothy Gilfoyle

History: Faculty Publications and Other Works

Rowe arid Jaffee share more than their long tenures as chief executives. Both have roots in southwestern Wisconsin.

Harris V. Quinn: What We Talk About When We Talk About Right-To-Work Laws, Michael J. Yelnosky

Law Faculty Scholarship

No abstract provided.

Determination Of Heavy Metals Concentration In Traditional Herbs Commonly Consumed In The United Arab Emirates, Rania Dghaim, Safa Al Khatib, Husna Rasool, Munawwar Ali Khan

All Works

Copyright © 2015 Rania Dghaim et al. Herbs are extensively consumed in the United Arab Emirates for their flavoring and medicinal properties. This study aimed at determining the concentration of heavy metals in selected traditional herbs consumed in the United Arab Emirates (UAE). A total of 81 samples of seven herbs, parsley (Petroselinumcrispum), basil (Ocimum basilicum), sage (Salvia officinalis), oregano (Origanum vulgare), mint (Mentha spicata), thyme (Thymus vulgaris), and chamomile (Matricaria chamomilla), were purchased from the local market in Dubai and analyzed for their cadmium, lead, copper, iron, and zinc contents. Microwave-assisted digestion was applied for the dissolution of the …

Is “Green Dot” Always The Optimum Engines-Out Glide Speed On The Airbus A320 Aircraft?, Kivanc A. Avrenli, Barry J. Dempsey

Journal of Aviation/Aerospace Education & Research

The dual-engine failure checklist of the Airbus A320 states that the optimum airspeed at which the aircraft can be flown is the “green dot” speed when an engine restart is considered impossible. This is because the “green dot” speed maximizes the power-off glide range in wings-level flight. However, it is not known whether the “green dot” speed would still be the optimum airspeed if the power-off landing maneuver primarily consists of sharp turns. The objective of this study is to find out the optimum power-off glide speed for the A320 if the emergency landing maneuver primarily requires sharp turns rather …

Identification And Exploitation Of Inadvertent Spectral Artifacts In Digital Audio, N. C. Donnangelo, W. S. Kuklinski, R. Szabo, R. A. Coury, G. R. Hamshar

Journal of Digital Forensics, Security and Law

We show that modulation products from local oscillators in a variety of commercial camcorders are coupled into the recorded audio track, creating narrow band time invariant spectral features. These spectral features, left largely intact by transcoding, compression and other forms of audiovisual post processing, can encode characteristics of specific camcorders used to capture the audio files, including the make and model. Using data sets both downloaded from YouTube and collected under controlled laboratory conditions we demonstrate an average probability of detection (Pd) approaching 0.95 for identification of a specific camcorder in a population of thousands of similar recordings, with a …

Computer Forensic Projects For Accountants, Grover S. Kearns

Journal of Digital Forensics, Security and Law

Digital attacks on organizations are becoming more common and more sophisticated. Firms are interested in providing data security and having an effective means to respond to attacks. Accountants possess important investigative and analytical skills that serve to uncover fraud in forensic investigations. Some accounting students take courses in forensic accounting but few colleges offer a course in computer forensics for accountants. Educators wishing to develop such a course may find developing the curriculum daunting. A major element of such a course is the use of forensic software. This paper argues the importance of computer forensics to accounting students and offers …

Data Loss Prevention Management And Control: Inside Activity Incident Monitoring, Identification, And Tracking In Healthcare Enterprise Environments, Manghui Tu, Kimberly Spoa-Harty, Liangliang Xiao

Journal of Digital Forensics, Security and Law

As healthcare data are pushed online, consumers have raised big concerns on the breach of their personal information. Law and regulations have placed businesses and public organizations under obligations to take actions to prevent data breach. Among various threats, insider threats have been identified to be a major threat on data loss. Thus, effective mechanisms to control insider threats on data loss are urgently needed. The objective of this research is to address data loss prevention challenges in healthcare enterprise environment. First, a novel approach is provided to model internal threat, specifically inside activities. With inside activities modeling, data …

Rules Of Professional Responsibility In Digital Forensics: A Comparative Analysis, Filipo Sharevski

Journal of Digital Forensics, Security and Law

The consolidation of the rules of professional responsibility as recommended by the Committee on Identifying the Needs of Forensic Sciences Community (2009) accents the establishment of an uniform code of ethics emphasizing the importance of enforceability in strengthening the role the forensic science plays within the criminal justice system. Equally pertinent for the domain of digital forensics, this imperative entails a research commitment in comparing and contrasting the respective codes of ethics to illustrate their “variety, specificity and enforceability” in order to inform the discussion on the regulative aspects of the digital forensic discipline. Accordingly, this paper reviews the professional …

On The Network Performance Of Digital Evidence Acquisition Of Small Scale Devices Over Public Networks, Irvin Homem, Spyridon Dosis

Journal of Digital Forensics, Security and Law

While cybercrime proliferates – becoming more complex and surreptitious on the Internet – the tools and techniques used in performing digital investigations are still largely lagging behind, effectively slowing down law enforcement agencies at large. Real-time remote acquisition of digital evidence over the Internet is still an elusive ideal in the combat against cybercrime. In this paper we briefly describe the architecture of a comprehensive proactive digital investigation system that is termed as the Live Evidence Information Aggregator (LEIA). This system aims at collecting digital evidence from potentially any device in real time over the Internet. Particular focus is made …