Physical Sciences and Mathematics Commons^™

Radiation Problem, Gerald L. Fuller

Honors Theses

A sphere of radius 'a' which is radioactive and which has an average range 'b' in the sphere. What fraction of total radiation will escape the sphere?

Modern Art Through Geometric Eyes, Janice M. West

Honors Theses

When tourists--even homefolks--go through a modern art museum, many opinions are accumulated. Some people may have chills when they see a certain painting, while others get a sick feeling of dizziness when they see the same one. In fact, if there were an opinion box at the exit of an art show, I imagine you could almost accurately count the different opinions by counting the total number of people who viewed the show. Yet, there is one opinion that most 'ole foggies' (and I use the term loosely) would agree upon, and that is this: "Why that's nothing but a …

Imbedding Problems In Graph Theory, William Goodwin

Honors Theses

For some years there has been interest among mathematicians in determining the different ways in which certain graphs can be imbedded in given surfaces. M.P. VanStraten in 1948, determined that it is possible to imbed the graph K_3,3 (which is the graph representing the famous three houses, three utilities problem) in the torus in only two ways. She then used this fact to show that the graph representing the configuration of Desargues (containing K_3,3 as a subgraph) has genus two. One major source of motivation for the work on imbedding problems has been their relation to coloring problems …

Cationic Copolymerization Of B-Pinene And Styrene, Charles Peter Snyder

Honors Theses

Cationic polymerizations are the least understood of all polymerization reactions. Perhaps even less understood are copolymerizations using cationic catalysts. Very little can be found in the literature concerning B-pinene and styrene copolymers. This work was done to shed some light on this interesting subject.

Attempted Synthesis Of Diethyl 7-Dimethylsilabicyclo 2.2.1 Hepta-2,5-Dione-1,4-Dioate, David Kenneth Tart

Honors Theses

An attempt was made to synthesize diethyl 7-dimethylsilabicyclo [2.2.1) hepta-2,5-dione-l,4-dioate by reacting dimethyldichlorosilane with the dianion of 1,4-dicarbethoxy- 2,5-cyclohexadione. The products formed in the reaction were silicones and 0-silylated polymeric materials. If any of the desired product was formed, it was not detected.

Synthesis Of C14-Labeled Bis (P-Chlorophenyl) Acetic Acid (Dda), William Michael Silver

Honors Theses

The past three decade has seen the widespread use of DDT as an insecticide. As a persistent insecticide, its use has prompted a great amount of research into the fate of DDT in living organisms. A large number of metabolites of DDT has been found and many identified, although not all of the metabolites were found in all of the experimental bacterium, insects, or mammals.

Photochemical Solvolysis Of Optically Active 3,5-Dimethoxy-Α-D-Benzyl Acetate, Peter Jerry Frank

Honors Theses

The purpose of this work was the stereochemical study of the photochemical solvolytic reaction of 3,5-dimethoxybenzoic acid, optically active 3,5-dimethoxy-α-d-benzyl alcohol was prepared. The specific rotation of the alcohol was compared to the alcohol produced from the photochemical solvolytic reaction of 3,5-dimethoxy-α-d-benzyl acetate.

The Preparation And Kinetics Of Sterically Hindered Gold (Iii) Complexes, David Luther Fant

Honors Theses

The purpose of this research was to prepare and study complexes with steric hindrance greater than that of the dien complex but less than that of the Et4dien complex.

Synthetic Approaches To Certain Acenapthalene Drivatives, Douglas Jeffrey Binder

Honors Theses

The purpose of this investigation is the synthesis of bis- acenaphth- (1, 2a)- acenaphthene. The experimental procedures used generally follow those of previous workers. The use of 1, 8- dibromonaphthalene is necessary throughout the synthesis. The preparation used follows that of letsinger, after a preferred synthesis of 8- bromo- 1- naphthotic acid. The latter compound reacted via a modified Hunsdiecker reaction to yield 1, 8- dibromo- naphthalene. Other approaches tried never seemed to result in improved yields, or were successful. Besides this approach to 1, 8- dibromonaphthalene, an attempt to circumvent its need has been made by running a dilute …

1-3 Dipolar Cycloadditions Of Nitrile Ylides, Steven Paul Braff

Honors Theses

1-3 dipolar cycloaddition is the union of a 1-3 dipole, a-b-c, with a system containing a multiple bond, d-e, to form a five membered ring. In this scheme, center c contains an electron sextet, and concommitant positive charge, while center c contains an unshared pair of electrons and is the anionic center of the dipole. In the cycloaddition reaction, the 1-3 dipole and the multiple bond system (called the dipolarophile), collapse to form a five membered ring with loss of all formal charges. All together, eighteen 1-3 dipolar systems have been mentioned. The synthetic potential with respect to heterocyclic adducts …

The Developement [Sic] Of Phosphorometric, Fluorometric And Absorption Analyses For The Measurement Of Carbamates And Carbamic Acids As An Explanation Of Carbon Dioxide Transport In Blood, Edward Theodore Gray

Honors Theses

Phosphorometric, flourometric, and absorption analyses have been developed for the measurement of amino acids, carbamic acids, and carbamates. The absorption analysis may be done in any solvent while the other two methods are limited to non-re-emitting solvents. Water is not excluded in any of the analyses. A carbamate or carbamic acid can be detected even in the presence of amino acids as low as 0.5%, with an overall accuracy of ± 0.3)%. Tentative assignments have been made for the n, π* direct triplet excitation bands for the carbonyls of glycine and its carbamic acid, acetyl chloride, ethyl acetate, and acetamide. …

Some Aspects Of Quantum Mechanics In Chemical Theory, Thomas Freeman Babson

Honors Theses

The physics of microscopic phenomena is called quantum mechanics. When quantum mechanics is extended to the macroscopic scale, the classical macroscopic physics results. Atomic interactions such as the formation of bonds between atoms falls into the range of physics described by quantum mechanics. Because of the interest of a chemist in such interatomic effects, it seems reasonable that a chemist would be interested in quantum mechanics because it is the physics governing these effects. The point of this thesis is to present some of those aspects of quantum mechanics that are directly applicable to molecular systems and that can aid …

The Major Contribution Of Leibniz To Infinitesimal Calculus, Carolyn Rhodes

Honors Theses

A study of the work of Leibniz is of importance for at least two reasons. In the first place, Leibniz was not alone among great men in presenting in his early works almost all the important mathematical ideas contained in his mature work, In the second place, the main ideas of his philosophy are to be attributed to his mathematical work, not vice versa. He was perhaps, the earliest to realize fully and correctly the important influence of a calculus on discovery. The almost mechanical operations which one goes through when one is using a calculus enables one to discover …

The Regular Polyhedra: A Study In Visual Aids For Teaching Geometry, Sammye Halbert

Honors Theses

Traditionally, mathematics, past simple addition, subtraction, multiplication, and division, has been taught of as being so boring, irrelevant, and in short, one of the unavoidable evils of school. An advertisement in The Mathematics Teacher expressed the general attitude of many students when it said, "mathematics was invented by an old magician in the desert who, with the help of his talking monkey, bakes equations and cupcakes in the hot sun." It seems that many students think mathematics is just one problem after another that has some mystical answer floating around in the air somewhere. The object is to get that …

The History Of The Stream Preservation Movement In Arkansas, Rex Moreland Terry

Honors Theses

The history of Arkansas' Stream Preservation movement is not a long one, because only in the recent past have Arkansans taken a serious look at the long term effects of such things as damming streams and clearing land.

The core of the movement for stream preservation centers around the Buffalo River, in the Northwest Arkansas Ozarks. Because of this, the bulk of this paper will be devoted to the Buffalo.

Approaches To The Synthesis Of Bis-Acenaphth [1,2-A] Acenaphthene, Kenneth Neal Boudette

Honors Theses

The purpose of this project was the synthesis of bis-acenaphth[l,2-a] acenaphthene. The synthetic route attempted was the preparation of 1,8-naphthalylnaphthalene by reacting 1,8-dilithionaphthalene with acenaphthene- quinone followed by oxidation with lead tetracetate and treatment of the diketone with 1,8-dilithionaphthalene to give the product.

Study Of The Radiolysis Of Aqueous Dichloromethane, Joseph Herbert Dal Pian

Honors Theses

Aqueous solutions of dichloromethane have been irradiated with a cobalt-60 gamma source. Products of the radiolysis have been determined in order to formulate the mechanism of the radiation induced decomposition. Chemical analysis of irradiated solutions has shown that hydrochloric acid and formic acid are among the products of the decomposition. The effect of oxygen and dichloromethane concentrations on the production and yield of chloride ion has been determined. From the results, a mechanism for the radiolysis of aqueous dichloromethane in the presence of oxygen has been deduced.

Preparation Of Some Alkynes And Alkenynes, Edward John Lamby

Honors Theses

The following thesis concerns the preparation of several alkynes and their conversion to alkenynes. Alkynes are of interest because of their potential biological activity (1), general reactivity to boranes (2), complexing ability with some transition metals (3), as well as other general reactions of π bonds (4). It was the intention of this investigation to prepare several alkynes with varying degrees of steric hindrance and evaluate the effect of this property. Double bonds were incorporated in several of these compounds to aid in the assessment.

The Radiolysis Of Aqueous Solutions Of Dichloromethane, Steven Michael Odre

Honors Theses

Aqueous solutions of dichloromethane have been irradiated with a cobalt-60 gaama source. Products of the radiolysis have been determined in order to formulate the emchanism of the radiation induced decomposition. Chemical studies have shown that hydrocholoric acid and hydrogen peroxide are two of the major products of the radiolysis. Traces of formaldehyde have also been found. The effect of oxygen and dichloromethane concentrations on product yields was determined. It has been found that the product yields are independent of dose rate. The Proposed mechanism is initiatied by the hydrated electron and the hydroxyl radical - both products of the radiolysis …

Photochemical Reactions Of Some Benzyl Compounds, Thomas Wesley Lesniak

Honors Theses

Zimmerman and Sandel have investigated many photolytic reactions involving benzyl compounds and have hypothesized the intermediate to be a carbonium ion. The addition of a meta-electron donating group has been used to increase the stability of the carbonium ion intermediate. 3, 5- Disubstituted benzyl carbonium ions have added stability.

The Photolysis Of Phenylglycine And The Synthesis Of Α-Deuterated M-Anisaldehyde, Alan Nathan Meisel

Honors Theses

Attempts were made to produce mandelic acid by irradiating phenylglycine in both acidic and basic aqueous solutions but no mandelic acid was detected.

The Fluorescence And Phosphorescence Of Glycine -- A First Step In The Determination Of Glycine Carbamate, Henry George Fein

Honors Theses

Cassidy (1) fully outlines the historical progress of research to 1968 about the carbamate reaction; this paper will simply summarize that effort. It is presently believed that carbon dioxide is transported by the blood in three ways: 1) dissolved CO2 and carbonic acid, 2) bicarbonate ions, and 3) carbamate. Roughton and Rossi-Bernardi (10) have proposed the use of a glycylglycine and CO2 model for the carbamate reaction. Instead of the barium precipitate method, they have used a pH and pCO2 electrode system to measure the uptake of CO2. Since the dissolved CO2 and HCO3 can be calculated from the pCO2 …

Glycine Carbamate Derivatives, David Clark Cable

Honors Theses

The formation of a carbamate on hemoglobin is one method proposed for carbon dioxide transport in the blood. As of yet, no direct method has been reported for quantitatively determining to what extent carbamate formation occurs. The phosphorescence of glycine carbamate is of interest in this problem. Glycine is structurally similar to the globin endings, so that it presents a model that is simpler and more easily studied but still contains a sufficient degree of similarity to hemoglobin for the purpose of studying this reaction. Phosphorescence spectroscopy has been proposed a possible method for direct quantitative analysis of glycine carbamate. …

Critical Examination Of The Uniform Charge Cloud Method, Frederick R. Maxfield

Honors Theses

The Uniform Charge Cloud Method, a model used to describe atoms and molecules, has been investigated. In the model, electrons are viewed as spheres with a constant charge density throughout their volume. In previous studies, it was found that the interelectron repulsion energies calculated for helium were too high, bond distances calculated for molecules were too short, and the model was unable to predict term values in accordance with Hund's Rules. In order to reduce these errors, electron correlation was introduced into the model. It was found that the errors were too large to be corrected by electron correlation. The …

Comparison Of Three Schools Of Thought In The Foundations Of Mathematics, Carolyn Rhodes

Honors Theses

Some of the most memorable events of the twentieth century took place as a result of conflict. Out of the numerous conflicts staged during this period, only one was resolved not on a common everyday piece of writing paper. The proponents of the conflict--E. V. Huntington, Oswald Veblen, Bertrand Russell, A. N. Whitehead, and David Hilbert--did not use weapons, but they used basic mathematical structure to wage the most extensive and critical investigation into the foundations of mathematics. As a result three schools of thought which are of special prominence and interest were brought to light. These are the postulational …

Bayesian Statistics: The Fundamental Theorem, Carolyn Rhodes

Honors Theses

The problem of the foundation of statistics is to state a set of principles which entail the validity of all correct statistical inference, and which do not imply that any fallacious inferences is valid. This sentence describes the purpose of much writing on statistical inferences, in general, and Bayesian statistics, in particular. Bayesian statistics was first introduced in a publication by Thomas Bayes in The London Philosophical Transactions, volumes 53 and 54 for the years 1763 and 1764, after Bayes' death in 1761. However, since the entire statistical research of Bayes' involves enormous study, this paper will limit itself to …

Mathematics Of Investment, Claudia Morgan Griffin

Honors Theses

By using the text Mathematics of Investment by William L. Hart, Griffin examines the mathematics of investments.

The History And Nature Of Pi, Karen A. Rand

Honors Theses

No abstract provided.

Halogenated Helicenes, Richard Wilbert Heiden

Honors Theses

Attempts at synthesizing certain halohelicenes for studies in the following areas are described: 1) the testing of a new method of resolving 2) electron spin resonance (ESR). Since the purpose of the study was twofold, the decision to synthesize monochloro derivatives of hexahelicene was based on the time element and the comparative ease in which these particular compounds were thought to have been brought about (i.e. in direct comparison to polyhalo and higher order helicenes). In addition to the traditional historical, theoretical, and experimental sections, an appendix contained a few suggestions relative to helicene research is included.

Calculations Of Total Energies For Neon Atom, Argon Atom And Neon Ion, Joseph Patrick Minehan

Honors Theses

This work shows that is is very difficult to guess the proper configuration of the spheres for most atoms. This is clearly shown in the argon calculations, where Bent suggested a configuration that would have lowest energy, but it turned out to have the highest energy of those calculated. This shows the need to have a method to give the configuration of the lowest energy that depends very little on human insight.