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Articles 1 - 13 of 13
Full-Text Articles in Physical Sciences and Mathematics
The Petrology Of The Precambrian Roof Pendants Thompson Peak, Sawtooth Mountains, Idaho, Susan Denise Anderson
The Petrology Of The Precambrian Roof Pendants Thompson Peak, Sawtooth Mountains, Idaho, Susan Denise Anderson
Honors Theses
No abstract provided.
Combination Effects Of Irradiation And Chemical Doping On High Temperature Superconductors, Russell J. Fedewa
Combination Effects Of Irradiation And Chemical Doping On High Temperature Superconductors, Russell J. Fedewa
Honors Theses
The goal of this project is to investigate some methods that improve the critical transport current in high temperature superconductors. A superconductor is a material which can allow an electrical current to flow through it with no resistance. This makes them ideal for a wide variety of applications. Most of the present use is in science or medicine, and show promise in computer circuitry materials and electromagnetic trains. This experiment explores a means of increasing the critical current, the maximum amount of electric current that can pass, and which at present is too low to permit the use of superconductors …
Applications Of A Diode-Laser-Based Detector To On-Line Determinations Involving Methylene Blue, Michelle Ann Spaziani
Applications Of A Diode-Laser-Based Detector To On-Line Determinations Involving Methylene Blue, Michelle Ann Spaziani
Honors Theses
The application of an inexpensive diode-laser-based detector for flow injection analysis (FIA), and the on-line determination of sulfide using the "Methylene Blue (MB) Method" is presented. The detector is designed for simultaneous measurements of transmittance and fluorescence. A 670-nm diode laser is the excitation source; photodiodes serve as detector elements. The flow cell is constructed of a piece of square-cross-section quartz capillary tubing. The MB Method employs N, N-dimethyl-p-phenylenediamine (DMPD), iron III, and sodium sulfide reacting to form MB; a triple-line flow-injection manifold is used. Performed previously using conventional UV-Vis instrumentation, optimized conditions included one reagent dissolved in 9 M …
Studies Toward A Chiral, Charge Separated, Water Soluble Cyclophane, Danuta Trzebinska-Yager
Studies Toward A Chiral, Charge Separated, Water Soluble Cyclophane, Danuta Trzebinska-Yager
Honors Theses
It has been suggested that the key issue in the structure-function correlation in enzyme catalysis is electrostatic stabilization of the ionic transition states. In order to mimic receptors in biological systems we designed a novel hydrophilic macrocycle, 10, with an electrostatic dipole across its hydrophobic cavity. The dipole moment would be established between a positively charged Fe(II)-terpyridyl complex on one end of the macrocycle and the two carboxylate substituents at the opposite end of the receptor. An experimental strategy based on a convergent synthesis is presented.
Fluorescence Studies Of Cyclodextrin Polymers: A Study Of The Binding Of Various Fluorescence Probes To Cyclodextrin Polymers, Karen Ann Colwell
Fluorescence Studies Of Cyclodextrin Polymers: A Study Of The Binding Of Various Fluorescence Probes To Cyclodextrin Polymers, Karen Ann Colwell
Honors Theses
Cyclodextrins (CDs) are cyclical oligosaccarides which exist as 6, 7, or 8 glucopyranose units joined by α-1,4 linkages, referred to as α, β, and γ CDs, respectively. Their structure resembles that of a truncated cone in which the interior cavity is hydrophobic while the exterior remains hydrophilic. This allows CDs to form inclusion complexes with nonpolar molecules in an aqueous environment. Polymerization of CDs (CDPs) has been carried out using epichlorohydrin which connects the CD cavities by an average of 12-15 repeating glyceryl linker units. The binding of various fluorescence probes to CD monomers has been studied. In particular, pyrene …
Influence Of Salt Bridge Formation On Helix Stability, Angelo Carmine Nicoletta
Influence Of Salt Bridge Formation On Helix Stability, Angelo Carmine Nicoletta
Honors Theses
One of the most common structural elements in proteins is the a-helix. The main goal of this study was to see If the helical properties of short peptide chains could be increased by the formation of salt bridges between side chains. It has been shown that i,i+4 peptides posses helic; I characier. The research that has been done was to make a hybrid peptide chain, that had partial i,i+4 and partial i,i+3 salt bridge formation. The hybrid peptide was a i+4, i+3, i+4 peptide chain. The overall purpose of making this type of hybrid peptide was to make the approximate …
Transitions In Masculinity And Hemingway's Developed "Code", Daniel Polk
Transitions In Masculinity And Hemingway's Developed "Code", Daniel Polk
Honors Theses
The "Hemingway Code" is much more than two words that fit nicely together for a scholar's usage; the words signify a much deeper championing of masculinity, almost a haunting presence. For Ernest Hemingway living life every day, every moment with its fullest masculine fervor, became an obsession, a never-ending quest to be at one with the attitude of never complaining, never crying out, panicking, thinking too much, or regretting. To live a manly life in a series of tactical victories, performed with steadfast ritualistic mannerisms, is to embody masculinity, and therefore the "Hemingway Code."
Dna Interstrand Crosslinking Efficiencies, Sequence Preferences, And Organic Syntheses Of Diepoxide Metabolites In Fixation, Sara Charnecki
Dna Interstrand Crosslinking Efficiencies, Sequence Preferences, And Organic Syntheses Of Diepoxide Metabolites In Fixation, Sara Charnecki
Honors Theses
Molecular Basis of Cancer: Cancer, a disease that has had a devastating and frightening impact on current society in the midst of a chemical revolution, represents a class of diseases comprising over 200 known types that affect various regions of the mammalian body (Farmer & Walker, 1985). This disease strikes randomly and is often diagnosed after the disease has progressed beyond present treatment capabilities. Cancer is the result of irregularities in growth, reproduction, and differentiation of cells due to pennanent flaws in genetic information. Mutations caused by environmental factors can be compounded over time to cause carcinomas of different tissues. …
Double Exposure And Development Of Pmma Resist Using X-Ray Radiation, William M. Drout Iii
Double Exposure And Development Of Pmma Resist Using X-Ray Radiation, William M. Drout Iii
Honors Theses
No abstract provided.
Do Middle School Students Understand The Mathematics Necessary To Learn High School Science?, Lynn Toni Romanowski
Do Middle School Students Understand The Mathematics Necessary To Learn High School Science?, Lynn Toni Romanowski
Honors Theses
No abstract provided.
Determination Of Hydroxyl Radical Production Rates In Natural Waters Using The Fluorometric Reagent P-Hydroxyphenylacetic Acid, Jason D. Hosmer
Determination Of Hydroxyl Radical Production Rates In Natural Waters Using The Fluorometric Reagent P-Hydroxyphenylacetic Acid, Jason D. Hosmer
Honors Theses
A means of determining hydroxyl radical production rates in natural waters through the formation of a directly detectable fluorescent product has been developed. A method similar to the enzyme mediated oxidation of phydroxyphenylacetic acid by hydrogen peroxide is used (Miller and Kester, 1988). Due to the high reactivity of hydroxyl radicals, and subsequently low steady state concentrations, direct detection is very difficult. In the past detection was achieved through the introduction of a probe, usually a substituted aromatic or alcohol, that decays away at an observable rate upon reaction with hydroxyl radicals. Detection limits and accuracy of such difference based …
Syntheses Of Cross-Linking Agents, Molecular Modeling Of Oligonucleotides And Polypeptide-Ion Complexes, Michael J. Yunes
Syntheses Of Cross-Linking Agents, Molecular Modeling Of Oligonucleotides And Polypeptide-Ion Complexes, Michael J. Yunes
Honors Theses
Each section of this thesis will be subdivided into three parts encompassing all of the research in which I have been involved during the past three years. These will be referred to under the headings "Syntheses:' "Molecular Modeling," and "Cross-linking Efficiencies." Each of these subdivisions may have divisions within them when necessary in order to fully detail the research.
Dynamic Phase Steepening In Alfven Waves, Stephen R. Granade
Dynamic Phase Steepening In Alfven Waves, Stephen R. Granade
Honors Theses
Our solar system contains more activity and complexity than can be seen through a telescope. One such "invisible" phenomenon is the solar wind, created by a steady stream of particles blasted away from the sun in all directions. The sun's donut-shaped magnetic field lines channel this stream. Particles moving along the field lines perform an intricate helical dance, with ions winding one way and electrons the other.
The solar wind shapes and is shaped by the magnetic fields of the planets and the sun. If left undisturbed by outside influences, the earth's magnetic field, like the sun's, would resemble a …