Digital Commons Network^™

A Study Of A Divalent Cation-Selective Electrode, William Stanhope Ryan Jr.

Master's Theses

The ion-selective membrane electrode, recently introduced commercially, has shown excellent promise as a tool for determining ionic activities and concentrations in solution. It was the intent of the author to study the Orion divalent cation-selective electrode with two objectives.

The first objective of this research was to characterize the response of the divalent cation-selective electrode to calcium and magnesium ions in aqueous solutions. The effect of anions, monovalent cations; and pH upon this response was investigated. An examination was made of the response of this electrode to other divalent cations and of the effect of organic solvents on the membrane …

Laser Induced Optical Modulation In Zinc Selenide, Donald Edward Everett

Master's Theses

The experiments reported here with zinc selenide have a two-fold purpose. First, by using basically the same experimental set-up as Conway did, we are attempting to duplicate this LIMA using zinc selenide instead of cadium sulfide. Unlike his set-up, primarily one laser chopping frequency was used. Also, only one laser wavelength, 632.8 nanometers, was available, where Conway used lasers of wave­ lengths 647.1 nanometers and 530.8 nanometers. Another main difference is that in earlier works by Conway, laser pulse duration was of the order of 40 milliseconds, whereas the present duration is approximately 2.5 milliseconds. It was observed that the …

A Study Of The Acetic Anhydride Method For The Determination Of Citric Acid, Russell Kent Odland

Master's Theses

Citric acid is an important compound of many systems. Numerous methods, both qualitative and quantitative, have been used for the determination of the compound. Some of the biological systems investigated include fermentation studies, action on yeasts, antioxidant in fruits, additive in bakery goods and salad dressing preparations, amounts in vegetables, and others.The above examples are not complete; they only show the varied applications of citric acid. The purpose of this project was to investigate a quantitative spectrophotometric method using anhydrous conditions based on the citric acid-acetic anhydride-pyridine reaction. Conditions affecting the reaction were investigated and optimized for maximum sensitivity and …

The Selection Of Bank Management Trainees: A Validation Study, James G. Overton

Master's Theses

Twelve studies of psychometric prediction using cognitive ability tests with upper level managerial samples are summarized. Of these, only two yield essentially positive results. Meyer (1956) found·a correlation of .27 between Wonderlic scores and overall ratings of 142 supervisors. However, since the raters were free to examine predictor-scores while making their ratings, there is strong evidence that the criterion was contaminated. In an unpublished study, Laurent (1962) correlated ratings of managers with Miller Analogies Test and non-verbal abiliti test scores. With over 200 persons in each sample, he found correlations ranging from .18 to .29, all significant. The majority of …

Synthesis Of Chromium Tricarbonyl Complexes Of 1,3-Diaryl-2-Propyl Methanesulfonates, Ashby French Johnson

Master's Theses

Various unsymmetrically substituted 1 , 3-dipheny l -2- propylmethanesulfonates were prepared and complexed with chromium hexacarbonyl. The major products obtained from this complexation contained one rr -complexed ring and the other ring substituted with more common groups.

Husserl's Idea Of Phenomenology, Richard Allan Berg

Master's Theses

No abstract provided.

A Comparative Investigation Of The Relationship Between Algebra Grades And Differential Aptitude Test Subtests To Geometry Grades, Barbara Jean Southall

Master's Theses

THE PROBLEM AND OBJECTIVES

Counselors and teachers have long wanted a system to predict a student's probable level of achievement in the next higher course. This has been especially true in the academic areas such as English and mathematics. To do so involves many factors and the attempt has not yet proven successful.

THE PROBLEM

After three years of teaching both Algebra II and Trigonometry, and Fused Geometry, the author has become aware of the need for predicting a student's probable level of achievement in the next higher mathematics course. This is particularly true when colleges may be more selective …

Substituted ℓ-Dialkylaminomethyl-3-Phenyl-1-Naphthalenemethanols, Richard Elroy Davis

Master's Theses

Malaria is still a world health problem. Established antimalarial drugs have become ineffective in many areas because of the emergence of resistant strains of malaria. New efforts have been initiated to study variations of new untried compounds and earlier structures shown to have activity. The 4-quinolinemethanols fall into the latter class. The great activity of the 4-quinolinemethanols is offset by their phytotoxic activity.

The possibility that substituted o(-dialkylaminomethyl-3-phenyl-1- naphthalenemethanols, as analogs of the 4-quinolinemethanols, would be effective antimalarials, yet not have the phototoxic side effect, is discussed in this paper. Synthetic pathways to the naphthalenemhethanols are discussed. Experimental procedures are …

Organizational Size And Administrative Ratio: A Structural Analysis Of The Task Units Of Catholic Religious Professionals, Paul R. Zelus

Master's Theses

No abstract provided.

Man's Transcendence In The Wisdom Of The Sands By Antoine De Saint-Exupery, William F. Briel

Master's Theses

No abstract provided.

Effect Of Niacin And Its Analogs On Growth And On The Glucose Catabolic Pathways Of Staphylococcus Aureus, Manohar V. Wadke

Master's Theses

No abstract provided.

The Logical Problems That Prevented David Hume From Refuting The Argument From Design, Jeffery L. Grove

Master's Theses

No abstract provided.

A Follow-Up Study Of Interest Scores And Personality Traits Of Persevering And Non-Persevering High School Minor Seminarians Nine Years Later , William Lawrence O'Neill

Master's Theses

No abstract provided.

Combined Microspectrophotometry And Autoradiography Of Late Interphase Nuclei In Physarum Polycephalum, Joseph K. Vlchek

Master's Theses

No abstract provided.

A Brief Study Regarding G. W. Leibniz's Conceptions Of Time, Loo Ina Van

Master's Theses

No abstract provided.

An Appraisal Of The Physical Education Facilities And Equipment In The Public Elementary Schools Of Virginia, Craig Paul Organ

Master's Theses

It was the purpose of this study to examine the physical education facilities and equipment as they existed in the public elementary schools in Virginia in light of their adequacy as reported by principals and as compared with the standards recommended by the Virginia State Department of Education for an adequate physical education program.

Characteristics Of Successful Teaches Of The Disadvantaged (As Identified By School Principals), Lubomyr Zapar

Master's Theses

It was the problem of this study to identify basic characteristics, which teachers of the disadvantaged should possess in order to achieve maximum effectiveness in their teaching. Also, the study attempted to discover and reveal factual data on the disparity, which exists between the characteristics, which teachers presently working in this capacity possess, and those characteristics which are preferred.

Reverend William Graham, Presbyterian Minister And Rector Of Liberty Hall Academy, Robert Goggin Gillespie

Master's Theses

During the last quarter of the eighteenth century, the Reverend William Graham, a Presbyterian Minister, became noted as an educator and minister in Virginia. His dedicated teaching and deep concern for education insured the creation and preservation of Liberty Hall Academy during and after the Revolution; and his devout ministry resulted in revivals which strengthened Presbyterianism in Virginia.

In addition to teaching and preaching, William Graham was a lso interested in the political affairs of the time. He was vitally concerned with the establishment of representative democracy. He felt that through the constitutions and laws which were then being adopted …

Attitudes And Beliefs Of Chesterfield County Students Concerning All Police Officials, Benjamin Franklin Lewis

Master's Theses

The problem of this investigation was:

1. What was the attitude of school-age children towards the police and their law enforcement duties?

2. How did these children react towards the police as individuals and to the image they projected?

3. Did the investigator find any change in the attitudes and beliefs of the students as he progressed from one grade or age level to another one and , if so, was the change or difference significant?

4. Was there a difference in the responses of boys as compared to those of girls and , if so, was the difference significant?

A Historical Survey Of Changes In Education In Madison County 1792-1970, John Edward Dwyer

Master's Theses

The author 's purpose for writing this thesis is to show certain changes in the educational development in Madison County from 1792 to 1970.

Abh Secretor Status Of Cleft Lip/Palate Patients, Richard Lee Baker

Master's Theses

No abstract provided.

A Comparison Of Correlation Matricies Of Nine Socio-Demographic Variables For The Bronx And For Seattle, 1960: An Empirical Test Of The Generality Of Schmid And Tagashira's Variables As Revelatory Of The Structure Of The Large Urban Community, Terrence R. Mcgovern

Master's Theses

No abstract provided.

Sequential Processing Deficits In Reading Retardation, Sara Gambrell Tarver

Master's Theses

Doehring (1968) hypothesized that a basic sequential processing deficit underlies specific reading disability. To investigate sequential processing deficits in reading retardation, four tasks involving the reproduction of stimuli in a particular sequence were administered to a group of retarded readers and a group of normal readers matched on age, sex, race, educational opportunity, sociocultural environment, and Non-Language IQ on the CTMM. The normal readers were significantly superior to the retarded readers on the four sequential processing tasks and on two other tests, vocabulary and rhyming. The two groups did not differ significantly on reversals discrimination, perceptual speed, or cumulative learning. …

The Factorial Structure Of The Wechsler Preschool And Primary Scale Of Intelligence, Gerald S. O'Keefe

Master's Theses

No abstract provided.

A Tool And Die Test Validation Study, John Henry Petlicki

Master's Theses

No abstract provided.

A Proposed Work Study Program For Technicians In Radio Pharmacy, Jerome J. Glass

Master's Theses

No abstract provided.

An Analysis Of A Human Relations Laboratory Experience By The Focal Conflict Method, Denis E. Quinlan

Master's Theses

No abstract provided.

Features Of Influence Of Communism On The Development And Reorganization Of Higher Studies In Poland 1944-1969, Stanislaus Szewczyk

Master's Theses

No abstract provided.

Comparative Programs In Ninth Grade Corrective Reading, Keith John Thomas

Master's Theses

No abstract provided.

Extensions Of Morley's Theorem, Richard Harvey Gordon

Master's Theses

A review of the literature since 1899 when Morley offered his original hypothesis. Various authors have given proofs of the theorem, shown the existence of 27 such triangles, and established relationships to other mathematical concepts: isogonal conjugates, Lemoine point, Hessian points and axis, circles of Apollonius, Brianchon hexagons. The author explores the various intersections of the n-sectors of the angles of a general triangle, showing, incidentally, the uniqueness of the Morley equilateral triangle. Turning to the quadrilateral, the intersections of the tri-sectors of: the angles of a parallelogram, rectangle, trapezoid, and kite-shaped quadrilateral are examined, as well as those of …