Henri Temianka Correspondence; (krenek)

This collection contains material pertaining to the life, career, and activities of Henri Temianka, violin virtuoso, conductor, music teacher, and author. Materials include correspondence, concert programs and flyers, music scores, photographs, and books.https://digitalcommons.chapman.edu/temianka_correspondence/4044/thumbnail.jp

Functionalization of PS-b-P4VP Nanotemplates: towards optoelectronic applications

Self-organization of block copolymers becomes attractive for several branches of the current science and technology, which requires a cheap way of fabrication of well-ordered arrays of various nanoobjects. High ratio between the surface (or the interface) and the volume of the nanoobjects enables development of very efficient devices. The work within this thesis profits from the chemical dissimilarity between blocks of polystyrene-block-poly(4‑vinylpyridine) copolymers, where polystyrene forms “a body” of nanostructures and poly(4‑vinylpyridine) is “a link” for assemblies with low-molar-mass additives. Procedures and phenomena are demonstrated (observed) on few sorts of PS‑b‑P4VP copolymers with respect to their molecular weight and ratio of blocks. Although there are many kinds of nanostructures based on block copolymers, only nanotemplates are involved in the study. Their properties, like an influence of substrate roughness on microphase separation, stability of porous nanotemplates in ionized solutions, or a role of additives in their supramolecular assembly, respectively, are investigated. All of them appears to be important in development of various devices based on the nanotemplates. With respect to optoelectronic applications, electrical current transport and fluorescence are two basic phenomena studied on functionalized nanotemplates, developed in the thesis. DC transport is studied on nanostructures developed via sputtering of chromium into porous nanotemplates. Sputtering process is optimized in dependence of chromium deposition rate, composition and pressure of ambient gas. It is shown that a reactive nature of PS-b-P4VP nanotemplates enables development of resistant organometallic nanotemplates. On the other hand, suppression of the polymer reactivity is achieved by oxidation of a metal during sputtering in a reactive gas, which enables e. g. development of highly ordered TiO2 nanodots. Current-voltage characteristics are measured on “sandwich” devices (like LEDs) with various electrodes and composition. Several recent theoretical models fitting the characteristics are applied together with structural characterization techniques (like AFM or x-ray reflectivity) in order to elucidate relations among surface roughness, distribution of sputtered clusters, and carrier injection and transport. Fluorescence is studied on nanotemplates with organic low-molar-mass dyes, developed either via direct blending with the copolymer or via soaking of porous nanotemplates in dye solutions. Several relations between structure and fluorescence are observed. For instance, excimer emission in pyrene assemblies is supressed after ordering of the nanotemplate. Solvent induced orientation of fluorescein molecules in the nanotemplate results in fluorescence enhancement. Dimerization of Rhodamine 6G is dependent on the way of its impregnation in the nanotemplates (solvent, concentration, speed)

Esther Warner Brings You- Africa in Clay

Kau Blouzio in the language of the natives of Liberia, Africa, means first-born woman of her mother who can stand on her own feet. It is the name the blackmen lovingly gave to Esther Warner, an applied art graduate from Iowa State, when she lived in that strange land with her botanist-husband during the last war

Henri Temianka Correspondence; (krenek)

This collection contains material pertaining to the life, career, and activities of Henri Temianka, violin virtuoso, conductor, music teacher, and author. Materials include correspondence, concert programs and flyers, music scores, photographs, and books.https://digitalcommons.chapman.edu/temianka_correspondence/4045/thumbnail.jp

Building Trust – Can Infrastructure Development Improve Government Trust in Brazil?

Governments that suffer low levels of citizen trust generally have worse policy outcomes and less citizen compliance, making it difficult to pursue other policy goals. However, scholarship on government trust in low trust environments and how to improve trust is limited. In this paper, I propose that successful infrastructure development projects within a single country, because they are a uniquely visible government policy, serve to increase citizen trust in government. Using data from the Luz Para Todos program in Brazil, which is a federal program that provides electricity to households that lack it, I examine the effects of this particular infrastructure development program on blank voting rates, which are associated with trust in government. I expected find that municipalities with more recipients of the Luz Para Todos program will have higher trust in government. I also expected this relationship to have both spatial and temporal components. While one measure of trust supported these hypotheses, an alternative measure of trust did not, leaving mixed results for the relationship between infrastructure development and trust

Henri Temianka Correspondence; (krenek)

This collection contains material pertaining to the life, career, and activities of Henri Temianka, violin virtuoso, conductor, music teacher, and author. Materials include correspondence, concert programs and flyers, music scores, photographs, and books.https://digitalcommons.chapman.edu/temianka_correspondence/4046/thumbnail.jp

Make This A Record Year

Have you ever said, I don\u27t know much about music, but I know what I like when I hear it? That\u27s a funny thing about music- it vanishes into thin air once it is heard. If those ever-evasive titles and composers slip your mind, that music won\u27t come back until you just happen to hear it again. But with each hearing it becomes more a part of you, and it can be yours just for the listening