Physical Sciences and Mathematics Commons^™

Hrc Enews — 2010 Spring, Megan K. Svarz

Publications (HRC)

This issue contains staff accomplishments and announcements, event listings, a "new faces" listing for new staff, affiliates, and researchers, and an "of interest" section.

Unlv Magazine, Cate Weeks, Tony Allen, Shane Bevell, Diane Russell, Brendan Buhler, Afsha Bawany, Erin O'Donnell

UNLV Magazine

No abstract provided.

Mojave Applied Ecology Notes Spring 2010, Anna San, Donovan J. Craig, Lindsay P. Chiquoine, Scott R. Abella, E. Cayenne Engel, Christina L. Lund, Jessica E. Spencer, Edward P. Weber Ph.D, Jill E. Craig

Mojave Applied Ecology Notes

Seed removal rates of Sahara mustard by rodents and ants, Mojave Desert Network exotic invasive inventory, gypsum roadside disturbance restoration update, new paper out on post-fire plant establishment, UNLV establishes school of environmental and public affairs

Colorado College State Of The Rockies Report Card, Walter E. Hecox, Elizabeth L. Kolbe

Publications (SD)

Welcome to Colorado College’s seventh State of the Rockies Report Card. Building upon a strong start in 2004 and continuing each year since, the Rockies Project this year provides a fresh look, through thoughtful analysis, at a fundamental challenge to this beautiful but fragile region: maintaining the Rockies’ key roles in the nation’s food supply and vibrant agriculture. This Report Card and the companion series of 2009- 10 monthly State of the Rockies Food and Agriculture campus speakers are significant outreach activities of Colorado College: Vision 2010, an agenda to strengthen our college and our engagement in the region.

On Construction Of The Smallest One-Sided Confidence Interval For The Difference Of Two Proportions, Weizhen Wang

Mathematics and Statistics Faculty Publications

For my class of one-sided 1 - α confidence intervals with a certain monotonicity ordering on the random confidence limit, the smallest interval, in the sense of the set inclusion for the difference of two proportions of two independent binomial random variables, is constructed based on a direct analysis of coverage probability function. A special ordering on the confidence limit is developed and the corresponding smallest confidence interval is derived. This interval is then applied to identify the minimum effective dose (MED) for binary data in dose-response studies, and a multiple test procedure that controls the familywise error rate at …

Signal Recovery From Inaccurate And Incomplete Measurements Via Regularized Orthogonal Matching Pursuit, Deanna Needell, Roman Vershynin

CMC Faculty Publications and Research

We demonstrate a simple greedy algorithm that can reliably recover a vector v ?? ??d from incomplete and inaccurate measurements x = ??v + e. Here, ?? is a N x d measurement matrix with Nv with O(n) nonzeros from its inaccurate measurements x in at most n iterations, where each iteration amounts to solving a least squares problem. The noise level of the recovery is proportional to ??{logn} ||e||2. In particular, if the error term e vanishes the reconstruction is exact.

Seismicity Associated With Geothermal Systems, Randi Walters

McNair Scholars Research Journal

Studying natural and induced seismicity associated with geothermal systems can provide information regarding the location and magnitude of hydraulic fracturing. Understanding the fracture system can aid geothermal exploration. In addition, seismicity can affect the output of a geothermal reservoir, and potentially be a seismic hazard to the surrounding area. This study focuses on two geothermal systems: the Raft River Geothermal System (RRGS) in southern Idaho and the Mt. Princeton Geothermal System (MPGS) in central Colorado. The seismic data analyzed for the RRGS is from the broadband sensors that are part of the EarthScope Project’s Transportable Array (TA), while the seismic …

Differential Privacy For Collaborative Security, Jason Reed, Adam Aviv, Daniel Wagner, Andreas Haeberlen, Benjamin C. Pierce, Jonathan M. Smith

Departmental Papers (CIS)

Fighting global security threats with only a local view is inherently difficult. Internet network operators need to fight global phenomena such as botnets, but they are hampered by the fact that operators can observe only the traffic in their local domains. We propose a collaborative approach to this problem, in which operators share aggregate information about the traffic in their respective domains through an automated query mechanism. We argue that existing work on differential privacy and type systems can be leveraged to build a programmable query mechanism that can express a wide range of queries while limiting what can be …

Ceg 260-01: Digital Computing Hardware/Switching Circuits, Meilin Liu

Computer Science & Engineering Syllabi

We will discuss and cover basic digital, combinational and sequential logic systems. Labs will be used to gain valuable practical experience in implementing elementary circuits and logic designs.

Cs/Mth 316/516: Survey Of Numerical Methods For Computational Science, Ronald F. Taylor

Computer Science & Engineering Syllabi

Introduction to numerical methods used in the sciences and engineering. Included will be methods for interpolation, data smoothing, integration, differentiation, and solution of systems of linear and nonlinear equations. Discussion of sources of error in numerical methods. Applications to science, engineering and applied mathematics are an integral part of the course. Special topics presented as schedule permits. Four hours lecture.

Daybook, Sydny Loughlin

Academic Symposium of Undergraduate Scholarship

The daybook assignment in the Honors Composition class was a daily homework exercise students were required to do in order to expand their expression and writing skills. We could respond to any prompt of our choice or we could take it as an opportunity to explore a more poetic area of interest. Consisting of 50 total pieces, I decided to turn my Daybook assignment into a daily log of poetry.

2010 Annual Research Symposium Abstract Book, Trinity College

Science Symposia Abstracts

2010 annual volume of abstracts for science research projects conducted by students at Trinity College.

Characterization Of Glycation Sites On Human Serum Albumin Using Mass Spectrometry, Omar S. Barnaby

Student Research Projects, Dissertations, and Theses - Chemistry Department

The modification of proteins by reducing sugars is a process that occurs naturally in the body. This process, which is known as glycation, has been linked to many of the chronic complications encountered during diabetes. Glycation has also been linked to changes in the binding of human serum albumin (HSA) to several drugs and small solutes in the body. While these effects are known, there is little information that explains why these changes in binding occur. The goal of this project was to obtain qualitative and quantitative information about glycation that occurs on HSA. The first section of this dissertation …

Insights Into The Commons On Flickr, Jason Vaughan

Library Faculty Publications

The Commons on Flickr, comprised of an international community of select libraries, museums, and archives, was a project initially launched in 2008 by the Library of Congress and Flickr. Primary goals of The Commons are to broaden exposure to rich cultural heritage photographs and to observe and participate in the communities of engagement and dialog enabled through The Commons. A survey was administered to all The Commons institutions during summer 2009, focusing on assessment of the overall satisfaction of current members and seeking additional details on participation goals, social interactions, staff time involvement, and general statistics. Members report a very …

The Development Of An Effective Water-Soluble Receptor For Pyrene Derivative Dyes, Ashley Longstreet

Undergraduate Theses and Capstone Projects

A receptor with enhanced water solubility was synthesized from an existing receptor to be used as a pyranine fluorescence quencher in endovesiculation detection assays. The existing receptor consisted of a cyclen core with four protruding arms containing an aryl nitro group at each end. Its poor water solubility limited the accuracy and precision of the endovesiculation assay because the low concentration of receptor did not match the concentration of pyranine. To increase the water solubility, ethoxy groups were attached to the ends of each arm by first selectively reducing the nitro group to an amine with NaBHU4, H2, and a …

Seducing The Single Ticket Buyer: Converting Single Ticket Buyers To Subscribers At The Binghamton Philharmonic, Lauren F. Elicks

MPA Capstone Projects 2006 - 2015

Declining interests in classical music have left many performances based organizations scrambling to maintain subscriptions rates, ticket revenue and attendance. The Binghamton Philharmonic has a substantial single ticket buyer base which if converted to subscribers, would secure revenue and attendance to each season. This study explores the motivations and attendance levels of Binghamton Philharmonic single ticket buyer population. Using frequency distribution charts, cross-tabular analysis and independent samples t-tests, variables of motivation were compared to the single ticket and subscriber population.This project discusses the factors affecting single ticket buyer motivations for attendance, effective methods for encouraging greater attendance, and provides an …

Associative Pattern Mining For Supervised Learning, Harpreet Singh

Doctoral Dissertations

The Internet era has revolutionized computational sciences and automated data collection techniques, made large amounts of previously inaccessible data available and, consequently, broadened the scope of exploratory computing research. As a result, data mining, which is still an emerging field of research, has gained importance because of its ability to analyze and discover previously unknown, hidden, and useful knowledge from these large amounts of data. One aspect of data mining, known as frequent pattern mining, has recently gained importance due to its ability to find associative relationships among the parts of data, thereby aiding a type of supervised learning known …

On Calculating Residuated Approximations And The Structure Of Finite Lattices Of Small Width, Wu Feng

Doctoral Dissertations

The concept of a residuated mapping relates to the concept of Galois connections; both arise in the theory of partially ordered sets. They have been applied in mathematical theories (e.g., category theory and formal concept analysis) and in theoretical computer science. The computation of residuated approximations between two lattices is influenced by lattice properties, e.g. distributivity.

In previous work, it has been proven that, for any mapping f : L → [special characters omitted] between two complete lattices L and [special characters omitted], there exists a largest residuated mapping ρf dominated by f, and the notion of "the shadow …

Functionalization Of Aromatic Organic Molecules By Anhydrous Flourides And By Reductive Elimination Of Iodine(Iii), Bijia Wang

Student Research Projects, Dissertations, and Theses - Chemistry Department

Solution phase reactivity of nucleophilic fluoride reagents is attenuated by ion-pairing interactions. ¹H-¹⁹F HOESY competition experiments permit generation of a fluoride ion affinity scale in the weak-binding regime. Direct DFT calculations of ion pair interaction energies as well as calculated cation electrostatic potential maps can be used to predict solution phase ion pairing tendencies for closely related ammonium cations. It was found by studying the decomposition of tetra-substituted ammonium cations by fluoride that: 1) rates of E2 decomposition is faster than the S_N2 pathway; 2) aryl substituents destabilize the cations; 3) steric strain tends to …

Analysis Of Precipitates And Waters Associated With An Alkaline Leachate, Gulf State Steel Property, Gadsden, Alabama: A Reconnaissance Study, Craig Vantrees

Geosciences Theses

Calcite stalactites ranging in length from several inches to a foot long are found forming on the southeastern slag pile at the former Gadsden Steel Mill of the Gulf States Steel Corporation. Analyses of samples collected per EISOPQAM guidelines include the following: petrographic, conductivity, pH, XRD, XRF, TDS, and major cations and anions. Preliminary field pH and conductivity measurements indicate that waters near the slag pile have a pH ranging from 11-12 and a conductivity ranging from 1115-6300 μS/ cm. Titration data indicate that the maximum pH value is 12.5. These calcite stalactites and stream coatings result from the dissolution …