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Articles 1 - 14 of 14
Full-Text Articles in Physical Sciences and Mathematics
A Remedial Program In The Four Fundamental Operations In Decimal Fractions, Hallie Ruth Weber
A Remedial Program In The Four Fundamental Operations In Decimal Fractions, Hallie Ruth Weber
Master's Theses
Can the results of the teaching of the four fundamental operations in arithmetic be improved? This is an important question that confronts most teachers of arithmetic. How can the teacher eliminate the difficulties which interfere with pupil progress, and reduce the number of failures in arithmetic? A group diagnostic test will show not only the level of ability of pupils in the various operations, but will point out weaknesses so that the teacher may organize her work in such a way as to give time to those who are below the standard and omit deadening drill for those who are …
A Study Of The Effect Of An Equal Energy Spectrum Upon Metallic Selenium In Vacuo, George Butler Scott
A Study Of The Effect Of An Equal Energy Spectrum Upon Metallic Selenium In Vacuo, George Butler Scott
Master's Theses
Since little has been found in the literature, on the effect of a actinic properties on the conductivity of metallic selenium and on its spectral response when possessing these properties, it was thought noteworthy to construct several selenium cells having low and medium dark resistances and to study them with a view of seeking some correlation between their conductivity characteristics and their prismatic response in vacuo.
Variation Of Moments With Distributions Of Masses And Areas, Mayo Glenwood Shults
Variation Of Moments With Distributions Of Masses And Areas, Mayo Glenwood Shults
Master's Theses
The purpose of this investigation has been to determine the variations of the first, second, third and fourth moments as functions of distributions of masses and areas. These moments were found about a line or plane perpendicular to the horizontal axes of the figures, and at various distances along the axes. For a complete understanding of the problem, an explanation of various terms will be made in relation to mechanics statistics.
A Propagation Of Ten Meter Radio Waves By Vertical And By Horizontal Dipole Antennas, James William Haddock
A Propagation Of Ten Meter Radio Waves By Vertical And By Horizontal Dipole Antennas, James William Haddock
Master's Theses
Radio communication is made possible by means of energy that travels through space from the transmitter to the receiver in the form of electromagnetic waves. These waves move with the velocity of light and differ from visible light only in wave length or frequency. This radiant energy consists of a magnetic field and of an electrostatic field, at right angles to each other and also at right angles to the direction of propagation. Questions explored in this thesis include: 1. Is there a relation between the amount of reflected radio energy and the angle of polarization. 2. If so, which …
Gauss' Hypergeometric Equation, William R. Smith
Gauss' Hypergeometric Equation, William R. Smith
Master's Theses
As early as the seventeenth century the English mathematician, john Wallis (1616-1703), used the term "hypergeometric" to describe a series which he was studying. This series, ∑(a)(a+b)(a+2b)…(a+n-1b), is quite different from the usual geometric series, hence the term, "hyper" (=above) plus "geometric," was used to signify that the series was of greater complexity than the geometric series. Wallis did not consider his series a power series or a function of x.
In 1769 this series received a remarkable development at the hands of Loonhard Euler who, following the example of Wallis, applied the word "hypergeometric" to it. He observed that …
The Segregation Of Real Roots Of Lower Orders, Ross W. Bland
The Segregation Of Real Roots Of Lower Orders, Ross W. Bland
Master's Theses
The purpose of this thesis is the presentation of the better algebraic methods of the segregation of real roots of equations of lower orders and a brief historical sketch of the advance made in the development of algebra. Mention is also made of a few of the men who have made notable contributions to this field of mathematics and the time, as nearly as it is possible to determine it, when new ideas were discovered.
Linearity In Factor Analysis, Opal Emmons
Linearity In Factor Analysis, Opal Emmons
Master's Theses
The uniqueness of mathematics in that it is a science complete in itself makes it possible to apply mathematical tools to sciences which, in themselves vary widely in content. There is, however, a particular difficulty which must be surmounted. A given mathematical procedure may be valid in the science of mathematics but invalid in another science, such as psychology. The reason for this is that sometimes there is a discrepancy between the implicit assumptions in the field of mathematics and those implicit in the field of application. The purpose of this investigation is twofold: (1) To point out that linearity …
Asymptotic Series, Bernard Martin
Asymptotic Series, Bernard Martin
Master's Theses
The purpose of this thesis is to follow the development of the asymptotic series from the beginning made by Euler, in his solution of problems, to the modern applications of asymptotic series, also to present a definition and an analysis of asymptotic series, explain some different theories of their use, and show the ways in which they find common usage. The use of asymptotic series is a comparative new development in the field of applied mathematics. The divergent series were not used as a method of calculation until Euler showed that they gave close approximations in the solution of problems. …
The Kolbe Synthesis With Alkyl Ortho-Xenols, Sidney Harris
The Kolbe Synthesis With Alkyl Ortho-Xenols, Sidney Harris
Master's Theses
The phenol series of compounds has shown marked therapeutic activity. Generally there are two types phenols used as germicides and fungicides - (a) the very soluble type such as the resorcinols and ( b) the less soluble type such as the phenyl phenols and salicylic acid and its derivatives.
Condensation Of Olefins With P-Mercapto-Diphenyl, Raymond Michael Abrams
Condensation Of Olefins With P-Mercapto-Diphenyl, Raymond Michael Abrams
Master's Theses
Markownikow's rule states that in the addition to unsaturated ,negative groups add to the carbon atom having the least number of Hydrogen atoms. It has been observed that mercaptans and hydrogen sulfide add to olefine contrary to Markownikow's rule in the presence of sodium alcoholates or sulfuric acid.
The Lime Content Of Rocks Of The Upper Cretaceous System Of Osborne County, Kansas, Herman D. Search
The Lime Content Of Rocks Of The Upper Cretaceous System Of Osborne County, Kansas, Herman D. Search
Master's Theses
This report is the result of several weeks of intensive study and investigation in the field and in the laboratory. In making this study of the rocks of Osborne County, Kansas, the writer is concerned chiefly with the chemistry of the rooks rather than with their geological formation. He has not attempted to make a complete analysis of the rocks, but has limited his investigation in order to determine certain facts concerning their line content. He has attempted to determine the consistency of the percentage of lime in a given member in various parts of the county and also of …
The Application Of A Photronic Nephelometer In The Determination Of Calcium, A.M. Gross
The Application Of A Photronic Nephelometer In The Determination Of Calcium, A.M. Gross
Master's Theses
No abstract provided.
The Fixation Of Active Nitrogen By Organic Compounds, F. Russell Koppa
The Fixation Of Active Nitrogen By Organic Compounds, F. Russell Koppa
Master's Theses
No abstract provided.
The Refractive Indices Of Ethyl Alcohol And Water Mixtures, Janina Nowakowska
The Refractive Indices Of Ethyl Alcohol And Water Mixtures, Janina Nowakowska
Master's Theses
No abstract provided.