Thesis (M.Sc.) - Carleton University, 2004. / Includes bibliographical references. Also available in electronic format on the Internet.

Thesis (M.S.)--Rochester Institute of Technology, 2006. / Typescript. Includes bibliographical references (leaves 47-48).

xiii, 116 p. : ill. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number. / Early literacy development and mastery of reading skills are critical goals for all students to accomplish; however, there is not yet a clear answer on how or in which language to teach these skills to English Language Learners (ELL). Until clear evidence on effective interventions is found, the academic achievement gap between mainstream students and ELL students is likely to increase. This study examined the effects of the "Templates" Spanish intervention program on the Spanish early literacy skills of phonemic awareness and the alphabetic principle for 12 kindergarten Hispanic ELL students enrolled in a dual immersion program. To assess the efficacy of the Spanish intervention program, a hierarchical linear model (HLM) design combining elements of multiple baseline across subjects, single-subject design, and a regression discontinuity design was used. Results of the HLM analysis found no significant effects of the intervention in the between subjects analysis. The visual analysis of single subject designs indicated that of the 12 subjects only three appeared to exhibit a positive effect of the intervention when measures of alphabetic principle were used and only two when phonemic awareness measures were used. Students for whom the "Templates" did not appear to have a positive effect were those that were already making adequate progress while receiving the small group curriculum practice. These students' skills continued growing when they received the "Templates" intervention and while some progressed at a slower pace they may have reached a sufficient level of skills that continuing or exceeding baseline levels of growth was unlikely. Our study provides some initial indication that students who are not making adequate progress with the small group curriculum practice may potentially benefit from the use of more structured, direct, and explicit instruction with the use of the "Templates". Limitations of this study included the use of a small sample size, the short duration of the time allowed for the intervention procedures, and the restricted time to conduct phase changes from baseline to intervention would have provided a clearer indication of intervention effects. / Committee in charge: Roland Good, Chairperson, Special Education and Clinical Sciences; Kenneth Merrell, Member, Special Education and Clinical Sciences; Jeffrey Sprague, Member, Special Education and Clinical Sciences; Robert Mauro, Outside Member, Psychology

xx, 290 p. : ill. (some col.) / Macrocyclic phosphine compounds have long been sought as ligands for transition metal complexes because of their strong binding properties. Despite considerable effort in this field, no general methods for synthesizing phosphine macrocycles or their complexes have been developed. This dissertation describes attempts to synthesize an iron complex with a water-soluble macrocyclic tetraphosphine ligand for use in separating nitrogen from natural gas. Chapter I reviews previous syntheses of macrocyclic phosphine ligands and their complexes, focusing on ligand synthesis, coordination chemistry, and demetallation of the complexes. Chapter II reports on the synthesis of water-soluble secondary bidentate phosphine ligands, their coordination chemistry with iron(II), and attempts to use these complexes as templates for forming a macrocyclic iron-phosphine complex by reactions with carbon electrophiles. Over the course of treating these iron complexes with various carbon electrophiles, an interesting reaction between bromomaleic anhydride and proton sponge was discovered. Chapter III explores the product, 4-maleicanhydrido-1,8-bis-(dimethylamino)naphthalene (MAPS). Due to its conjugated donor-acceptor network, which is disrupted upon protonation, MAPS acts as a colorimetric version of a proton sponge. The attachment of MAPS to amine-functionalized solid supports, forming solid-supported proton sponge reagents, is also described. Chapter IV discusses the synthesis of an iron(II) complex of the water-soluble phosphine 1,2-bis(di(hydroxymethyl)phosphino)ethane (DHMPE). Although unbound hydroxymethylphosphines commonly react with NH-functional amines via the phosphorus Mannich reaction, this and other complexes of DHMPE do not undergo this reaction. Further investigation with hydroxymethylphosphine-boranes suggests that the currently-accepted mechanism of the phosphorus Mannich reaction is incorrect, and an alternate mechanism is proposed. Chapter V discusses the synthesis and functionalization of copper(I) complexes of water-soluble phosphines. Unlike the complexes described in Chapter I, these complexes readily react with α,ω-dihalides or di(acyl chloride)s, forming complexes whose mass spectra correspond to those with macrocyclic phosphine ligands. Unlike most macrocyclic tetraphosphine complexes, these complexes can be demetallated by treatment with sulfide. Finally, a new synthesis of water-soluble macrocycles, based on lessons learned during the course of these investigations, is proposed. This dissertation includes previously published and unpublished co-authored material. / Committee in charge: Dr. Michael M. Haley, Chairperson; Dr. David R. Tyler, Advisor; Dr. Darren W. Johnson, Member; Dr. Shih-Yuan Liu, Member; Dr. Mark H. Reed, Outside Member

Made available in DSpace on 2016-06-02T19:06:21Z (GMT). No. of bitstreams: 1 6541.pdf: 10057991 bytes, checksum: 6e34bb08fd8457f2c6ab13a9ae4751a8 (MD5) Previous issue date: 2013-07-11 / Financiadora de Estudos e Projetos / The computational representation of objects by means of polygonal meshes is widely used in various areas such as modeling, simulation, engineering, rendering process and various other CAD (Computer-Aided Design) and CAE (Computer-Aided Engineering) applications. These polygonal meshes are commonly built with triangles and processing these elements is widely studied, making that such techniques are well established and robust. However, there is a growing interest in quadrilateral meshes as they provide important characteristics for applications such as texturing and modeling with splines. With the increasing interest in the study of unstructured quadrilateral surfaces, there is the rise of new processing techniques related to simplification and refinement. This dissertation presents a complete pipeline for indirect generation of quadrilateral surface meshes, proposing a new refinement method of quadrilateral meshes. This new method is a local iterative subdivision process, ensuring the consistency of the mesh at each iteration and has the following main features: ability to guide the quality of generated quadrilaterals; control the number of generated elements; generate a family of models; control quadrilaterals density (adaptivity) and control the alignment of quadrilaterals lines with features lines of the model. The implementation restricts the refinement to homeomorphic models to a sphere. The results presented illustrate the effectiveness of the refinement technique and adaptivity control. / A representação computacional de objetos por meio de malhas poligonais e muito utilizada em diversas áreas como modelagem, simulaçao, engenharia, processo de rendering e diversas outras aplicacoes CAD (Computer-Aided Design) e CAE (Computer-Aided Engineering). Essas malhas poligonais sao comumente construídas com triângulos e o processamento desses elementos e amplamente estudado, fazendo com que essas tecnicas estejam bem consolidadas e robustas. Porem, ha um crescente interesse em malhas de quadrilateros, pois proveem características importantes para aplicacoes como texturizacão e modelagem com splines. Com o crescente aumento do interesse no estudo de superfícies de quadriláteros nao estruturadas, ha o surgimento de novas tecnicas de processamento das mesmas como simplificação e refinamento. Esta dissertacao apresenta um pipeline completo para geracao indireta de malhas superficiais de quadrilateros, propondo um novo metodo de refinamento de malhas de quadrilateros. Este novo metodo consiste em um processo iterativo de subdivisao local, garantindo a consistencia da malha a cada iteraçao e possui como principais características: capacidade de guiar a qualidade dos quadriláteros gerados; controlar o námero de elementos gerados; gerar uma família de modelos; controlar a densidade de quadrilateros (adaptatividade) e controlar o alinhamento dos quadrilateros com as linhas de características do modelo. A implementacao realizada restringe o refinamento para modelos homeomorficos a uma esfera. Os resultados apresentados ilustram a efetividade da tecnica de refinamento e controle da adaptatividade.

abstract: When people look for things in their environment they use a target template - a mental representation of the object they are attempting to locate - to guide their attention around a scene and to assess incoming visual input to determine if they have found that for which they are searching. However, unlike laboratory experiments, searchers in the real-world rarely have perfect knowledge regarding the appearance of their target. In five experiments (with nearly 1,000 participants), we examined how the precision of the observer's template affects their ability to conduct visual search. Specifically, we simulated template imprecision in two ways: First, by contaminating our searchers' templates with inaccurate features, and second, by introducing extraneous features to the template that were unhelpful. In those experiments we recorded the eye movements of our searchers in order to make inferences regarding the extent to which attentional guidance and decision-making are hindered by template imprecision. We also examined a third way in which templates may become imprecise; namely, that they may deteriorate over time. Overall, our findings support a dual-function theory of the target template, and highlight the importance of examining template precision in future research. / Dissertation/Thesis / Ph.D. Psychology 2013

In this study, the templating role of bimolecular triple hydrogen bonded honeycomb network consisting perylene-3,4,9,10-tetracarboxydi-imide and melamine is investigated, using scanning tunneling microscopy. Although the stability of the network upon modification is a major obstacle toward higher complexity, three different approaches in this work highlight formation of successful architectures in a sequential way. 1. Insertion of pore modifier star shaped molecules based on tri(phenylene ethynylene)benzene core in the pores to construct a new template. 2. Insertion of iodinated molecules in the pores to study the network as a nanoreactor. 3. Electrochemical deposition of metals in the pores. Self-assembly monolayer of four different molecules based on tri(phenylene ethynylene)benzene core on uniform gold surface revealed different structures. The degree of the order within the structures depends highly on the symmetry of the molecules, and hence asymmetric molecule formed disordered structure. Upon insertion into the pores of the network, one of molecules did not match the pores size, while others fitted and illustrated rotation depending on the strength of their interaction with the network components and the substrate. The rotation is significantly reduced by modifying the molecules. These new architectures are used as templets hosting C₆₀ molecules which resulted in isolated single C₆₀ molecules. Self-assembly of iodinated molecule under different conditions on uniform gold surface leads to formation of different structures including monomers and dimers. Upon thermal treatment on the uniform surface oligomers are formed, whereas for the molecules confined in the pores of the network, the covalent bond formation was limited to dimerisation. Electrochemical copper deposition into the pores of the network under acidic condition (pH = 1 - 2) is not possible because of the stability of the network. However, by increasing pH of the electrolyte (pH = 5 – 7), a bilayer of Cu and anion is formed in the pores of the network, confirmed by scanning tunneling microscopy and X-ray photoelectron spectroscopy.

This diploma thesis deals with ways how to represent results of LISp-Miner application on the world wide web. This thesis has three main sections. The first section is dedicated to description of data analysis process including description of newly established study of infography and its application in publishing results found du-ring the DZD process. The second part describes exporting of LISp-Miner as well as exporting formats of each module and its combining with other technologies, afterwards follows summarization of all kind of exports of lispminer and its im-provements or create a whole new templates. Third part is dedicated to develop-ment of a web-based application as a tool of repsentation results generated by lispminer. The very last part is contained of future improvements of this application.

This report describes the design, development, implementation, and evaluation of a web-based tutorial designed to teach graduate students about the statistical concept of power. It contains a literature review of techniques used to teach statistics, similar computer-based programs for representing the concept of power, and instructional theories that pertain to web-based tutorials. It describes the process of designing and developing this tutorial in detail. The results section contains a description of the product implementation with three different groups and discusses the qualitative and quantitative findings from each of these implementations. Finally, there is a discussion of the tutorial's strengths and weaknesses.

MSc (Chemistry) / Department of Chemistry / The computational study of biologically active molecules is particularly important for drug development because it provides crucial information about the properties of a molecule, which determine its biological activities. The current work considers the results of a computational study of myristinin A and a structurally-related molecule (2-(4-hydroxyphenyl)-4-[2,4,6-trihydroxy-3-(9tetradecenoyl)phenyl]-3,4-dihydro-2H-benzopyran-7-ol, here denoted as DBPO). The two compounds pertain to the class of acylphloroglucinols. They were firstly isolated from Horsfieldia amygdaline, and they exhibit a variety of biological activities, including potent anti-inflammatory activity, potent DNA-damaging activity and DNA-polymerase ß inhibition. Their molecular structures differ only by the acyl chain. Both molecules have a bulky substituent meta to the acyl group consisting of a ring system (2-(4-hydroxyphenyl)-3,4-dihydro-2H-chromen-7-ol). The DBPO molecule can exist as cis and trans isomers in relation to the double bond present in the R chain, and both isomers are here investigated individually. The OHs ortho to the acyl group can form an intramolecular hydrogen bond (referred to as the first IHB) with the sp2 O atom of the acyl group. The phenol OHs neighbouring the substituent ring system can form O–Hπ interaction with the aromatic rings of the substituent, if suitable oriented. This study focuses on the identification of the stable conformers of these molecules (considering all the possible geometries obtainable by rotations about relevant single bonds), and of the factors stabilising the conformers. Full-optimisation calculations were performed in vacuo and also in three conveniently selected solvents. The results show that the dominant stabilising factors are the first IHB and the O–Hπ interactions. Other factors which have significant influence on conformational preferences are the orientation of the ring systems of the substituent, the orientation of the OHs on substituent, the mutual orientation of the OHs of the phloroglucinol moiety and also the orientation of the acyl chain. The results in solution are consistent with the findings of other acylphloroglucinols, for instance, the narrowing of the energy gaps and the increase of the dipole moment with the increase of solvent polarity. / NRF