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Site-Specific Modification Of De Novo Designed Coiled-Coil Polypeptides With Inorganic Redox Complexes, Anna Fedorova, Michael Y. Ogawa

Chemistry Faculty Publications

A stepwise procedure for preparing of site-specific binuclear metallopeptides is described. The modification procedure involves the alkylation of a cysteine side chain by reaction with [Ru(bpy)(2)(phen-ClA)](2+), where bpy = 2,2'-bipyridine and phen-ClA = 5-chloroacetaniido-1,10-phenanthroline, followed by the coordination of a ruthenium pentammine complex to a histidine residue located elsewhere along the sequence. The apo and metalated versions of the peptides C10H21(30-mer) and H10C21(30-mer) display circular dichroism spectra having minima at 208 and 222 nm, with theta(222)/theta(208) = 1.04 to indicate that these peptides exist as a-helical coiled-coils in aqueous solution. When the ruthenium polypyridyl complex is attached to C10H21(30-mer), the …

Investigation Of The Relationship Between Middle School Science Teachers' Knowledge And Beliefs Regarding The Coherence And Connections Among Science Concepts And Their Classroom Practices, Francis Eberle

Educational Studies Dissertations

This phenomenological investigation used an inductive qualitative research approach with multiple instruments and processes including a survey, interviews, classroom observations, concept maps, and classroom materials for data. The results suggest that middle school science teachers' ability to teach science in a connected and coherent fashion may be tied to their mental schema for organizing science ideas, curriculum materials, and their reflections on what they are teaching and why.

Hilbert Spaces Induced By Toeplitz Covariance Kernels, Mihaela Teodora Matache, Valentin Matache

Faculty Books and Monographs

This is a book chapter that appeared in Stochastic Theory and Control by Bozenna Pasik-Duncan (ed.).

This volume contains almost all of the papers that were presented at the Workshop on Stochastic Theory and Control that was held at the Univ- sity of Kansas, 18–20 October 2001. This three-day event gathered a group of leading scholars in the ?eld of stochastic theory and control to discuss leading-edge topics of stochastic control, which include risk sensitive control, adaptive control, mathematics of ?nance, estimation, identi?cation, optimal control, nonlinear ?ltering, stochastic di?erential equations, stochastic p- tial di?erential equations, and stochastic theory and its …

An Empirical Analysis Of Electronic Data Interchange (Edi) Implementation Benefits In Kentucky Small- And Medium-Sized Enterprises: Some Implications For New It Implementation, Deepak Khazanchi

Information Systems and Quantitative Analysis Faculty Publications

This paper reports that the benefits accrued from implementing and integrating Electronic Data Interchange (EDI) within small and medium-sized enterprises (SMEs) can be conceptualized into two factors. First, firms derive operational/tactical benefits by predominantly focusing on increasing internal utility of this technology. Second, firms derive strategic benefits from EDI in the form of better external relationships and alliances with trading partners and an enhanced ability to compete in their market. Among other significant findings, there are clear indications from the correlation statistics reported here that experience with EDI, industrial category of a firm and the level of ED! integral ton …

Water Transport In Polymer Electrolyte Membrane Electrolyzers Used To Recycle Anhydrous Hcl: I. Characterization Of Diffusion And Electro-Osmotic Drag, Sathya Motupally, Aaron J. Becker, John W. Weidner

Faculty Publications

In this paper, diffusion and electro-osmotic drag of water across Nafion® membranes in the presence of HCl are characterized. For all the measurements, one side of the Nafion membrane was in contact with liquid water and the other side with gaseous anhydrous HCl. To characterize diffusion of water, the open-circuit flux of water across a catalyst-coated Nafion 115 membrane was measured as a function of HCl flow rate and temperature at a constant cell pressure of 1 atm. Due to the nature of varying driving force for diffusion as a function of HCl flow rate, the experimental data was analyzed …

Modeling The Effects Of Ion Association On Alternating Current Impedance Of Solid Polymer Electrolytes, Changqing Lin, Ralph E. White, Harry J. Ploehn

Faculty Publications

This work presents a rigorous continuum model describing the transport of ions and associated ion pairs in solid polymer electrolytes subjected to small amplitude alternating current (ac) excitation. The model treats ion association as a reversible reaction among ions and ion pairs. Dimensionless governing equations are developed from component mass balances, flux equations based on dilute solution theory, and the Poisson equation. Assuming reversible electrode reactions and electroneutrality, the model equations have an analytical solution. Further simplifications are possible in limiting cases (weak and strong association, zero and infinite frequency excitation), giving expressions consistent with previously published models. We use …

Effect Of Problem-Based Learning On Motivation In An Urban Science Classroom, Amy L. Pawlak

Mathematical and Computing Sciences Masters

This study was conducted in effort to increase class participation and excitement about science in an urban science classroom. It focused on a class of ninth-grade students enrolled in a secondary general science class. The subjects were given a problem-based learning (PBL) project that required them to research an endangered species found in North America. Observations regarding engagement and behavior were recorded daily in a journal. The results show that excitement and participation increased for most, but not all students. However, no decrease in engagement was seen. Classroom behavior also improved during the course of the study. The PBL method …

Evolutionary Algorithms For Multiobjective Evaluation Of Watershed Management Decisions, Misgana K. Muleta, John W. Nicklow

Civil and Environmental Engineering

The comprehensive and systematic management of watersheds is essential for reducing the adverse environmental impacts arising from anthropogenically caused erosion and subsequent sedimentation. This paper describes a computational methodology that is designed to serve as a watershed decision support system and is capable of controlling environmental impacts of non-point source pollution resulting from erosion. In the decision process, the methodology also accounts for other inseparable objectives such as economics and social dynamics of the watershed. This decision support tool was developed by integrating a comprehensive hydrologic model known as SWAT and state-of-the-art multiobjective optimization technique within the framework of a …

Live To Tell, Brad Kallenberg

Theology and Religious Studies Faculty Publications

In recent years, countless Christians have found evangelism a difficult and even baffling scriptural mandate. Those we encounter, particularly young people, are often entirely unfamiliar with the basics of the Gospel. Traditional means of communicating the faith, from cold-calling to mass-mailings, simply no longer speak the language of the culture.

Brad Kallenberg recognizes that evangelism, even in our own backyard, has become a cross-cultural task. Like missionaries serving in foreign countries, we must become "students of the host culture." Much more than a "sinner's prayer," conversion requires a change of social identity.

Indeed, becoming a follower of Christ involves gaining …

Conversations Among Women In Mathematics (Program), University Of Dayton. Department Of Mathematics

Biennial Alumni Seminar

No abstract provided.

The Method Of Quasilinearization And A Three-Point Boundary Value Problem, Paul W. Eloe, Yang Gao

Mathematics Faculty Publications

The method of quasilinearization generates a monotone iteration scheme whose iterates converge quadratically to a unique solution of the problem at hand. In this paper, we apply the method to two families of three-point boundary value problems for second order ordinary differential equations: Linear boundary conditions and nonlinear boundary conditions are addressed independently. For linear boundary conditions, an appropriate Green's function is constructed. For nonlinear boundary conditions, we show that these nonlinearities can be addressed similarly to the nonlinearities in the differential equation.

Generalized Quasilinearization Method For A Second Order Three Point Boundary-Value Problem With Nonlinear Boundary Conditions, Bashir Ahmad, Rahmat Ali Khan, Paul W. Eloe

Mathematics Faculty Publications

The generalized quasilinearization technique is applied to obtain a monotone sequence of iterates converging uniformly and quadratically to a solution of three point boundary value problem for second order di_erential equations with nonlinear boundary conditions. Also, we improve the convergence of the sequence of iterates by establishing a convergence of order k.

Method Of The Quasilinearization For Nonlinear Impulsive Differential Equations With Linear Boundary Conditions, Paul W. Eloe, S. G. Hristova

Mathematics Faculty Publications

The method of quasilinearization for nonlinear impulsive differential equations with linear boundary conditions is studied. The boundary conditions include periodic boundary conditions. It is proved that the convergence is quadratic.

Third Kenneth C. Schraut Lecture (Poster), University Of Dayton. Department Of Mathematics

Kenneth C. Schraut Memorial Lectures

No abstract provided.

How To Keep Up With Mathematics (Abstract), Paul Campbell

Kenneth C. Schraut Memorial Lectures

You are a mathematics major perhaps because you are good at it and it’s useful, but more likely mainly because you enjoy it.

Most undergraduate mathematics is decades or even centuries old, in part because of the hierarchical nature of the subject. Meanwhile, your fellow students in biology and other sciences use textbooks that feature crucial work of the last five or ten years.

Recall, though, what you were told in orientation to college and often since: Much learning in college has to take place outside the classroom, at your own initiative. After your formal education ends, all mathematics learning …

High Frequency Communication System Modeling And Performance Enhancement, Employing Novel Adaptive Dsp Techniques, Murad M. Qahwash

Retrospective Theses and Dissertations

High Frequency (HF) communication has been shown to be a useful communication technique from the very beginning of World War I and it accelerated during World War II. This is attributed to its simplicity, ability to provide near globe connectivity at low power without repeaters, moderate cost, and ease of proliferation [1]. In fact, the HF communication system utilizes the ionosphere [2][3][4] to refract the skywave signals to a distant receiver. This ionospheric channel has some disadvantages. First, it is a non-stationary channel as the HF frequency propagation is a function of the sun spot activities, solar winds, and diurnal …

Dordt College 2002-2003 Catalog, Dordt College. Registrar's Office

Academic Catalogs

Academic Catalog for 2002-03

Développement D'Un Modèle Intégré Informatique Pour La Planification De La Ventilation Dans Les Mines Souterraines, Kostas Fytas

Rapports de recherche scientifique

Ce projet de recherche financé par IRSST consistait à élaborer un logiciel moderne qui permettrait de modéliser un réseau de ventilation minière. Le département de mines et métallurgie de l’Université Laval avait déjà mis au point un tel logiciel depuis 1988. Deux versions existaient, l’une en DOS et l’autre en Windows. Bien qu’utile et fiable, le logiciel comportait certaines lacunes qui limitaient son utilisation dans le milieu minier québécois. Ses faiblesses les plus importantes étaient l’absence d’une interface graphique et l’absence de branches avec un ventilateur. Par ailleurs, ce logiciel ne pouvait pas tenir compte de la compressibilité de l’air …

Design And Development Of A New Rockbold Load Measuring Device, Hani S. Mitri

Rapports de recherche scientifique

Cliquez ici pour la version française de ce rapport

Une nouvelle technologie permettant de mesurer la charge axiale des boulons d'ancrage mécaniques et des « rebars » (boulons à la résine) dans les mines souterraines a été conçue et développée en laboratoire. Cette technologie repose sur un système désigné du nom de SAFEBOLT (Stress And Force Evaluator in BOLTs), qui réunit trois composantes : 1) le mesureur de charge SAFEBOLT installé dans la tête des boulons, 2) un module d'affichage et 3) un câble de raccordement. Un banc d'essai adapté a été construit en laboratoire afin d'assurer le calibrage et …

Prevention Of Physiologic Maladaptation To Night-Shift Work By Phototherapy, Diane B. Boivin, Francine O. James

Rapports de recherche scientifique

Cliquez ici pour la version française de ce rapport

Au Québec, on estime qu'un tiers des emplois permanents sont comblés en dehors des heures conventionnelles. On note en particulier une prédominance du travail de nuit à plein temps dans les secteurs qui requièrent (hôpitaux, protection publique) ou qui choisissent (manufactures) 24 heures de service par jour. Il est bien connu que le travail de nuit ou en rotation s’accompagne de privation importante de sommeil, de troubles de vigilance et de performance, et d’un risque accru d’accidents graves en milieu de travail. De plus, ces troubles d’adaptation s’accroissent avec l’âge alors …

Étude De L'Effet Du Sautage Adouci Sur La Fracturation Des Parois D'Une Excavation Souterraine, Richard Simon

Rapports de recherche scientifique

Dans les mines souterraines, les chutes de terrain demeurent encore aujourd'hui une cause importante d'accidents mortels et autres accidents graves. L'écaillage et l'installation du soutènement sont les activités qui présentent le plus de risques de blessures liées aux chutes de roches. En effet, celles-ci nécessitent que le travailleur soit exposé à un massif rocheux non soutenu où des roches peuvent se détacher du toit.

Trois facteurs principaux affectent la difficulté des opérations d'écaillage et d'installation du soutènement: l'état initial du massif rocheux et les structures géologiques, les contraintes induites à la paroi de la galerie pouvant amener des instabilités, et …

Conception Et Développement D'Un Nouveau Mesureur De Charge Des Boulons D'Ancrage, Hani S. Mitri

Rapports de recherche scientifique

Click here for the English version of this report

Une nouvelle technologie permettant de mesurer la charge axiale des boulons d'ancrage mécaniques et des « rebars » (boulons à la résine) dans les mines souterraines a été conçue et développée en laboratoire. Cette technologie repose sur un système désigné du nom de SAFEBOLT (Stress And Force Evaluator in BOLTs), qui réunit trois composantes : 1) le mesureur de charge SAFEBOLT installé dans la tête des boulons, 2) un module d'affichage et 3) un câble de raccordement. Un banc d'essai adapté a été construit en laboratoire afin d'assurer le calibrage et …

Quantification Of Land-Use Impact On Stream Water Quality, Scott Dennis, Indrajeet Chaubey, Brian Haggard

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Accelerated eutrophication of Beaver Lake in northwest Arkansas is a major environmental concern. When developing watershed-management plans to protect lake water quality, it is important that linkages among land-use activities and water quality of tributary streams be quantified. This study assessed longitudinal base-flow and storm-flow water quality at War Eagle Creek and quantified linkages between stream water quality and land-use conditions within the War Eagle Creek sub-watershed of the Beaver Lake watershed. We collected six water samples: three from base-flow conditions and three from storm-flow conditions during Spring 2002. In general, concentrations of nitrate nitrogen (NO3-N), total N (TN), total …

Computer-Based Testing In Vocational Assessment And Evaluation: A Primer For Rehabilitation Professionals, Tina M. Anctil Peterman, Nancy J. Adams

Counselor Education Faculty Publications and Presentations

Current technologies, including computerized assessments, assistive technology, and information/resource technology, are effective tools that offer the rehabilitation professional a variety of applications for vocational evaluation and work assessment. "The ability of vocational evaluators to effectively utilize computers to obtain useful information (e.g. availability of specific electronic devices, job accommodation techniques, job-matching) for vocational recommendations could ultimately affect the outcome goals achieved in the rehabilitation process" (Chan, Lam, Leahy, Parker, & Wong; 1989, p. 113). In order to appropriately use these technologies, rehabilitation professionals need to understand the issues surrounding the use of these tools (e.g., reliability, validity) and ethical concerns …

Classroom Instruction In Gates Grantee Schools A Baseline Report, Jeffrey T. Fouts, Carol Brown, Gayle Yvonne Thieman

Education Faculty Publications and Presentations

This study is part of the on-going program evaluation of the Bill & Melinda Gates Foundation’s Model Schools Initiative and Model Districts Initiative in the state of Washington. In developing the Teaching Attributes Observation Protocol (TAOP) a conceptual framework was identified based on extensive literature on constructivist teaching. From this framework and the foundation’s written materials we identified important components and indicators of constructivist teaching and implications for the classroom. We then produced an observation protocol with 7 lesson components and a number of indicators under each component. The content validity of the instrument was then checked against the literature …

Determining Punitive Damages: Empirical Insights And Implications For Reform, Jennifer K. Robbennolt

Buffalo Law Review

No abstract provided.

Nsu Graduate Teacher Education Program (Gtep) Clark County Education Association Community Foundation Institute In Collaboration With Nova Southeastern University 2002, Nova Southeastern University

Abraham S. Fischler College of Education and School of Criminal Justice College Archive

No abstract provided.

Nsu Graduate Teacher Education Program (Gtep) Program Brochure Florida Version 2002, Nova Southeastern University

Abraham S. Fischler College of Education and School of Criminal Justice College Archive

No abstract provided.

Nsu Graduate Teacher Education Program (Gtep) Master's Degrees, Educational Specialist Degrees, Certification Programs, Recertification Courses Program Brochure 2002, Nova Southeastern University

Abraham S. Fischler College of Education and School of Criminal Justice College Archive

No abstract provided.

Mission Dilemmas: Bride Price, Minor Marriage, Concubinage, Infanticide, And Education Of Women, Jessie G. Lutz

Yale Divinity Library Occasional Publications

No abstract provided.