Physical Sciences and Mathematics Commons^™

Specification Of Non-Functional Requirements For Contract Specification In The Ngoss Framework For Quality Management And Product Evaluation, Manooch Amoozdeh, Nektarios Georgalas, Xiaoqing Frank Liu

Computer Science Faculty Research & Creative Works

The community of operation support systems (OSS) for telecom applications defined a set of fundamental principles, processes, and architectures for developing the next generation OSS through the TeleManagement Forum TMF. At the heart of NGOSS lies the notion of a "contract" which embodies the specification of services offered by an OSS component for quality management and product evaluation. However, TMF does not provide any method (or process) for specification of the non-functional part in the NGOSS contract specification. In this paper, we develop a systematic approach for specifying non-functional requirements of telecom OSS applications for contracts in the NGOSS framework …

A Physical Estimation Based Continuous Monitoring Scheme For Wireless Sensor Networks, Wiwek Deshmukh

Computer Science Theses

Data estimation is emerging as a powerful strategy for energy conservation in sensor networks. In this thesis is reported a technique, called Data Estimation using Physical Method (DEPM), that efficiently conserves battery power in an environment that may take a variety of complex manifestations in real situations. The methodology can be ported easily with minor changes to address a multitude of tasks by altering the parameters of the algorithm and ported on any platform. The technique aims at conserving energy in the limited energy supply source that runs a sensor network by enabling a large number of sensors to go …

Constraints On A New Post-General Relativity Cosmological Parameter, Robert Caldwell, Asantha Cooray, Alessandro Melchiorri

Dartmouth Scholarship

A new cosmological variable is introduced to characterize the degree of departure from Einstein’s general relativity with a cosmological constant. The new parameter, ϖ, is the cosmological analog of γ, the parametrized post-Newtonian variable which measures the amount of spacetime curvature per unit mass. In the cosmological context, ϖ measures the difference between the Newtonian and longitudinal potentials in response to the same matter sources, as occurs in certain scalar-tensor theories of gravity. Equivalently, ϖ measures the scalar shear fluctuation in a dark-energy component. In the context of a vanilla, cosmological constant-dominated universe, a nonzero ϖ signals a departure from …

Statistical Considerations In Designing For Biomarker Detection, Trenton C. Pulsipher

Theses and Dissertations

The purpose of this project is to develop a statistical method for use in rapid detection of biological agents using portable gas chromatography mass spectrometry (GC/MS) devices. Of particular interest is 2,6-pyridinedicarboxylic acid (dipicolinic acid, or DPA), a molecule that is present at high concentrations in spores of Clostridium and Bacillus, the latter of which includes the threat organism Bacillus anthracis, or anthrax. Dipicolinic acid may be useful as a first-step discriminator of the biological warfare agent B. anthracis. The results of experiments with B. anthracis Sterne strain and Bacillus thuringiensis spores lead to a conceptual model for the chemical …

U.S. Law Of The Sea Cruise To Map The Foot Of The Slope And 2500-M Isobath Of The Florida Escarpment And Sigsbee Escarpment, Northern Gulf Of Mexico Continental Marg. Cruise Report, James V. Gardner

Center for Coastal and Ocean Mapping

U.S. Law of the Sea cruise to map the foot of the slope and 2500-m isobath of the Florida Escarpment and Sigsbee Escarpment, northern Gulf of Mexico continental margin

CRUISE NR07-1

Mobile, AL to Mobile, AL

June 21, 2007 to July 8, 2007

Evolution Of The American Ecological Paideia, Mary Snow, Richard K. Snow

Publications

No abstract provided.

Task-Based Mood Induction Procedures For The Elicitation Of Natural Emotional Responses., Brian Vaughan, Charlie Cullen, Spyros Kousidis, Yi Wang

Other resources

This paper details experimental procedures designed to elicit real emotional responses from participants within a controlled acoustic environment. The experiments use Mood Induction Procedures (MIP’s), specifically MIP 4, to implement a co-operative task using two participants. These cooperative tasks are designed to engender emotional responses of activation and evaluation from the participants who are situated in separate isolation booths, thus reducing unwanted noise in the signal, preventing the participants from being distracted and ensuring a cleanly recorded audio signal. The audio is recorded at a professional level of quality (24bit/192Khz). The emotional dimensions of each audio recording will be evaluated …

Analysis Of Experimental Data For Ion-Impact Single Ionization Of Helium With Monte Carlo Event Generators Based On Quantum Theory, M. Dürr, B. Najjari, Michael Schulz, A. Dorn, R. Moshammer, A. B. Voitkiv, J. Ullrich

Physics Faculty Research & Creative Works

Recent multiply differential experimental data taken with reaction microscopes severely challenge predictions of quantum mechanical few-body models. Here, we report on a thorough analysis of all known possible experimental resolution effects and their influence on the extracted cross sections. Using a Monte Carlo event generator to simulate true events on the basis of quantum calculations allows us to consistently incorporate all aspects of the experimental resolution of the reaction microscope. We study the effect of the instrumental function in single ionization of helium by 3.6 MeV/u Au53+ and 100 MeV/u C6+ ions and find it to significantly modify the simulated …

Interstitial Fractionalization And Spherical Crystallography, Mark Bowick, David R. Nelson, Homin Shin

Physics - All Scholarship

Finding the ground states of identical particles packed on spheres has relevance for stabilizing emulsions and a venerable history in the literature of theoretical physics and mathematics. Theory and experiment have confirmed that defects such as disclinations and dislocations are an intrinsic part of the ground state. Here we discuss the remarkable behavior of vacancies and interstitials in spherical crystals. The strain fields of isolated disclinations forced in by the spherical topology literally rip interstitials and vacancies apart, typically into dislocation fragments that combine with the disclinations to create small grain boundary scars. The fractionation is often into three charge-neutral …

Infinite Product Group, Keith G. Penrod

Theses and Dissertations

The theory of infinite multiplication has been studied in the case of the Hawaiian earring group, and has been seen to simplify the description of that group. In this paper we try to extend the theory of infinite multiplication to other groups and give a few examples of how this can be done. In particular, we discuss the theory as applied to symmetric groups and braid groups. We also give an equivalent definition to K. Eda's infinitary product as the fundamental group of a modified wedge product.

Green Iguanas (Iguana Iguana): The Unintended Consequence Of Sound Wildlife Management Practices In A South Florida Park, Walter E. Meshaka Jr., Henry T. Smith, Elizabeth Golden, Jon A. Moore, Stephanie Fitchett, Ernest M. Cowan, Richard M. Engeman, Stacey R. Sekscienski, Heather L. Cress

United States Department of Agriculture Wildlife Services: Staff Publications

We examined the demographic response of the Green Iguana (Iguana iguana) to the removal of Raccoons in an urban maritime state park in southern Florida. The rapid growth of iguanas to sexual maturity in an underexploited, if not vacant, niche contributed to the rapid recruitment of a large and growing population during the four and one half years since removal of its limiting predator. We proffer here that at sites where Green Iguanas and high density Raccoons are syntopic, future Raccoon removal programs should be concurrent with an equally concerted effort to remove resident Green Iguanas. In this …

Wildlife Disease Management: An Insurmountable Challenge?, Scott E. Henke, Alan M. Fedynich, Tyler A. Campbell

United States Department of Agriculture Wildlife Services: Staff Publications

Wildlife biologists are increasingly being thrust onto the frontlines of wildlife disease management and surveillance in the United States. For example, biologists now routinely engage in oral vaccination of wildlife [e-g., Oral Rabies Vaccination Programs (QRVPs)] and collect specimens for both diagnostic purposes and disease surveillance or monitoring (e.g., avian influenza in migratory bids). For many, these responsibilities are novel compared to the more traditional roles of population estimation. habitat manipulation, and formulation of harvest recommendations. Wildlife disease investigation and management, in reality, we in their infancy compared with disciplines of human and domestic animal disease management. The recent focus …

Regression Analysis Of A Disease Onset Distribution Using Diagnosis Data, Jessica G. Young, Nicholas P. Jewell, Steven J. Samuels

U.C. Berkeley Division of Biostatistics Working Paper Series

We consider methods for estimating the effect of a covariate on a disease onset distribution when the observed data structure consists of right-censored data on diagnosis times and current status data on onset times amongst individuals who have not yet been diagnosed. Dunson and Baird (2001) approached this problem using maximum likelihood, under the assumption that the ratio of the diagnosis and onset distributions is monotonic non-decreasing. As an alternative, we propose a two-step estimator, an extension of the approach of van der Laan, Jewell and Petersen (1997) in the single sample setting, that is computationally much simpler and requires …

The Assessment Of The Degree Of Concordance Between The Observed Values And The Predicted Values Of A Mixed-Effect Model Using “Method Of Comparison” Techniques, William F. Mccarthy, Nan Guo

COBRA Preprint Series

In this paper, we present a methodology for determining the degree of concordance between observed and model-based predicted values of a mixed-effect model. In particular, we will compare the degree to which observed and model-based predicted values agree by using ‘method of comparison’ techniques. We will also present the results of the concordance correlation coefficient (CCC).

²H(E, E'P) Studies Of The Deuteron At High Q², Luminita Coman

FIU Electronic Theses and Dissertations

A high resolution study of the quasielastic ²H(e, e′p)n reaction was performed in Hall A at the Thomas Jefferson Accelerator Facility in Newport News, Virginia. The measurements were performed at a central momentum transfer of |q| ~ 2400 MeV/c, and at a central energy transfer of ω ~ 1500 MeV, a four momentum transfer Q² = 3.5 (GeV/c)² , covering missing momenta from 0 to 0.5 GeV/c. The majority of the measurements were performed at Φ = 180° and a small set of measurements were done at Φ = 0°. The Hall A High Resolution Spectrometers (HRS) …

A Multimedia Approach To Climate Change Education, Richard Snow, Mary Snow

Publications

This paper discusses the development of an upper-level college course on Climate Change created as part of an interdisciplinary Honors Seminar Series. The course makes use of multimedia instructional techniques to examine the physical, economic, and political dynamics of climate change. The curriculum includes an appraisal of assorted global warming websites, computer-based simulations and analysis of relevant climate data, as well as a review of the literature and other media including documentaries such as An Inconvenient Truth. The so-called global warming debate subsidized by the fossil fuel industry also is discussed.

Development Of A Mevva Based Beryllium-7 Plasma Source, David K. Olson

Theses and Dissertations

We have designed a new type of plasma gun ion source for a Malmberg-Penning trap based on Metal Vapor Vacuum Arc (MeVVA) ion source designs. Our primary intent with this MeVVA-type source is to create a confinable beryllium-7 (7-Be) plasma. 7-Be is a peculiar isotope due to its varying radioactive decay half-life in different electro-chemical configurations. It is also found in an unexpected abundance at high altitudes of the Earth's atmosphere. It is possible ioniziation affects the radioactivity of the isotope, partly explaining this discrepancy with atmospheric models. The short half-life of 7-Be requires us to replace the sample inside …

Or Best Offer: A Privacy Policy Negotiation Protocol, Daniel David Walker

Theses and Dissertations

Users today are concerned about how their information is collected, stored and used by Internet sites. Privacy policy languages, such as the Platform for Privacy Preferences (P3P), allow websites to publish their privacy practices and policies in machine readable form. Currently, software agents designed to protect users' privacy follow a "take it or leave it" approach when evaluating these privacy policies. This approach is inflexible and gives the server ultimate control over the privacy of web transactions. Privacy policy negotiation is one approach to leveling the playing field by allowing a client to negotiate with a server to determine how …

Pipe Diagrams For Thompson's Group F, Aaron L. Peterson

Theses and Dissertations

We review the definition and standard description of Thompson's Group F. We define the set of pipe diagrams and show that this set forms a group isomorphic to F. We use pipe diagrams to prove two theorems about giving a minimal representation for an arbitrary element of F.

Graduate Teaching Assistants' Statistical Knowledge For Teaching, Jennifer Ann Noll

Dissertations and Theses

This dissertation explores graduate teaching assistants’ (TAs’) statistical knowledge for teaching. Data collection methods that enabled the exploration of TA s’ statistical knowledge for teaching include: (a) a task-based web survey administered to 68 TAs from 18 universities across the United States; and, (b) a series of three taskbased interviews with a subset of five TAs from the larger survey population. Through and Strauss, 1967), I investigated the ways in which TAs reason about sampling tasks, and how they think about teaching and student learning in relation to sampling ideas. Building on past research in statistics education on K-12 and …

Transient Storage As A Function Of Geomorphology, Discharge, And Permafrost Active Layer Conditions In Arctic Tundra Streams, Jay P. Zarnetske, Michael N. Gooseff, Troy R. Brosten, John H. Bradford, James P. Mcnamara, W. Breck Bowden

CGISS Publications and Presentations

Transient storage of solutes in hyporheic zones or other slow-moving stream waters plays an important role in the biogeochemical processes of streams. While numerous studies have reported a wide range of parameter values from simulations of transient storage, little field work has been done to investigate the correlations between these parameters and shifts in surface and subsurface flow conditions. In this investigation we use the stream properties of the Arctic (namely, highly varied discharges, channel morphologies, and subchannel permafrost conditions) to isolate the effects of discharge, channel morphology, and potential size of the hyporheic zone on transient storage. We repeated …

2d Barcodes As Watermarks In Image Authentication, Prashan Premaratne, Farzad Safaei

Faculty of Informatics - Papers (Archive)

2D barcodes are increasingly used as tags in every type of goods for unique identification. Compared with the 1D barcodes, 2D barcodes not only can carry more data but also can withstand errors in subsequent scans. This property has significant parallels to watermarking logos as such watermarks will withstand multiple manipulations that are common with image transactions. We use a 2D Barcode as the watermark as this has error correction capabilities and show that this can be used to insert data imperceptibly into the host image. One Barcode is inserted into the low frequency component of the image and a …

Reporting And Interpretation In Genome-Wide Association Studies, Jon Wakefield

UW Biostatistics Working Paper Series

In the context of genome-wide association studies we critique a number of methods that have been suggested for flagging associations for further investigation. The p-value is by far the most commonly used measure, but requires careful calibration when the a priori probability of an association is small, and discards information by not considering the power associated with each test. The q-value is a frequentist method by which the false discovery rate (FDR) may be controlled. We advocate the use of the Bayes factor as a summary of the information in the data with respect to the comparison of the null …

Sefap: An Email System For Anti-Phishing, Qoing Ren, Yi Mu, Willy Susilo

Faculty of Informatics - Papers (Archive)

More and more users are suffering from email-based phishing attacks over the past years. Despite the use of various technologies for anti-phishing, phishing is still one of most serious attacks against Internet users. Email phishing attacks fabricate the email’s origin. Unfortunately, current email server systems can not authenticate the genuineness of in-coming emails. In this paper, we present a novel antiphishing mechanism: Signed Email for Anti-Phishing (SEFAP), designed to automatically identify an email’s origin to mitigate email phishing attacks. The SEFAP system is an extendable secure cryptographic system that accommodates multiple signature schemes. SEFAP can adopt any signature scheme which …

A Modified Cluster-Weighted Approach To Nonlinear Time Series, Mark Ballatore Lyman

Theses and Dissertations

In many applications involving data collected over time, it is important to get timely estimates and adjustments of the parameters associated with a dynamic model. When the dynamics of the model must be updated, time and computational simplicity are important issues. When the dynamic system is not linear the problem of adaptation and response to feedback are exacerbated. A linear approximation of the process at various levels or “states” may approximate the non-linear system. In this case the approximation is linear within a state and transitions from state to state over time. The transition probabilities are parametrized as a Markov …

Microbial Observatories: Kilauea Volcano Observatory For Carbon Monoxide-Oxidizing Bacteria, Gary M. King

University of Maine Office of Research Administration: Grant Reports

Volcanic activity regularly creates new landforms from deposits of tephra, ash and lava. These initially sterile, pristine deposits undergo a range of physical, chemical and biological transformations that lead in some cases to diverse, complex ecosystems such as Hawaiian rainforests. Recent activity by the Kilauea volcano has created unique opportunities to understand the timing and controls of complex ecosystem development, and to analyze the roles of microbes as pioneering colonists that contribute to plant development and succession. The newly established Kilauea Volcano Microbial Observatory will compare the diversity and activity of carbon monoxide-oxidizing bacteria colonizing two different deposits currently 45 …

Sger: Is Bolling Warming Recorded By The Southeastern Margin Of The Laurentide Ice Sheet?, Harold W. Borns Jr., Brenda Hall

University of Maine Office of Research Administration: Grant Reports

This award, under the auspices of the Small Grants for Exploratory Research (SGER) program, uses funds to increase the chronologic control for the southeastern margin of the Laurentide Ice Sheet (LIS). Ultimately, the researchers want to explore whether they are able to document the response of the ice sheet to major shifts in atmospheric temperature and assess the ability of the ice sheet to produce large volumes of meltwater.

The effect of prominent climate events, such as the Bolling warming (13,000 radiocarbon years before present), on the dynamics of the Laurentide Ice Sheet (LIS) remains unknown and yet has important …

The Mid-Infrared Emission Of M87, Eric S. Perlman, R. E. Mason, Christopher Packham, N. A. Levenson, Moshe Elitzur, Justin J. Schaefer, Masatoshi Imanishi, William B. Sparks, James Radomski

Physics and Astronomy Faculty Publications

We discuss Subaru and Spitzer Space Telescope imaging and spectroscopy of M87 in the mid-infrared (mid-IR) from 5 to 35 μm. These observations allow us to investigate mid-IR emission mechanisms in the core of M87 and to establish that the flaring, variable jet component HST-1 is not a major contributor to the mid-IR flux. The Spitzer data include a high signal-to-noise ratio 15-35 μm spectrum of the knot A/B complex in the jet, which is consistent with synchrotron emission. However, a synchrotron model cannot account for the observed nuclear spectrum, even when contributions from the jet, necessary due …

Assessment Of A Cgh-Based Genetic Instability, David A. Engler, Yiping Shen, J F. Gusella, Rebecca A. Betensky

Harvard University Biostatistics Working Paper Series

No abstract provided.

Survival Analysis With Large Dimensional Covariates: An Application In Microarray Studies, David A. Engler, Yi Li

Harvard University Biostatistics Working Paper Series

Use of microarray technology often leads to high-dimensional and low- sample size data settings. Over the past several years, a variety of novel approaches have been proposed for variable selection in this context. However, only a small number of these have been adapted for time-to-event data where censoring is present. Among standard variable selection methods shown both to have good predictive accuracy and to be computationally efficient is the elastic net penalization approach. In this paper, adaptation of the elastic net approach is presented for variable selection both under the Cox proportional hazards model and under an accelerated failure time …