The Democrat Years: A Growing Process (open access)

The Democrat Years: A Growing Process

Changes of ownership, a seeming lack of interest in history, several deaths, and a fire prompted this study into the history of The Weatherford Democrat. Data for the thesis came from back issues of The Democrat, Ayer Directory of Newspapers and Periodicals, letters from former publishers, and personal observations and experiences of the writer, who worked on the paper 14 years. All but about a dozen years of the back issues are available. The thesis is written in chronological order, dating from the beginning in 1895 to 1967, when the Donrey Media Group gained control, ending local ownership. The Democrat is the survivor of more than 20 newspaper ventures in the city and is still the principal county paper.
Date: August 1977
Creator: Vandagriff, Jon R.
System: The UNT Digital Library
The Effects of Physical Exertion on Immediate Classroom Mental Performance of Second-Grade Elementary School Children (open access)

The Effects of Physical Exertion on Immediate Classroom Mental Performance of Second-Grade Elementary School Children

The aim of this investigation was to analyze the effects of induced physical exertion on the performance of an immediate mathematical mental ability task among second-grade students. The purpose of the study was to gain information concerning the effects of physical exertion on a mathematical mental task and to evaluate each of four experimental treatment periods (twenty, thirty, forty, and fifty minutes) used to induce physical exertion. Another purpose was to determine whether males or females were more affected by experimentally induced treatments of physical exertion. It was concluded that fifty minutes of prolonged physical exertion as induced by relay game activities had a positive effect on certain mathematical tasks. This conclusion was based on the comparison of the fifty minute treatment performance to the pre-test treatment performed without induced physical exertion. Another conclusion derived from the data was that physical exertion periods of twenty, thirty, and forty minutes had no significant positive or negative effect on certain mental performance when compared to a non-induced physical exertion treatment. It was also concluded that there were no significant differences between male and female mean difference performances.
Date: December 1977
Creator: Gabbard, Carl P.
System: The UNT Digital Library
The History of the Arlington Citizen-Journal (open access)

The History of the Arlington Citizen-Journal

This study was conducted to detail the history of The Arlington Citizen-Journal newspaper and its editors and the effect of an active newspaper on the orderly growth of a town. The Arlington Citizen-Journal evolved from a merger of two Arlington weekly newspapers, The Arlington Journal and The Arlington Citizen, which for more than fifty years reported Arlington happenings. The study includes historical information about the city, its people, and its institutions, and direct quotations of both editorial comment and news reports of Arlington events and people. It was found that throughout the years of Arlington's rapid growth, The Citizen-Journal was a vital force behind its citizens.
Date: August 1977
Creator: Forehand, Phyllis Hargrave
System: The UNT Digital Library
Aluminum recovery from coal fly ash by high temperature chlorination (open access)

Aluminum recovery from coal fly ash by high temperature chlorination

A study of aluminum recovery from power plant fly ash by high temperature chlorination was undertaken to demonstrate that fly ash could be a potential source of aluminum, iron and possibly silicon. Magnetic separation of the iron oxide served as a first step to alleviate the iron contamination problem. However, the agglomeration of some iron oxide with alumina and silica made it difficult to completely separate the iron from the fly ash. Further iron separation was achieved by chlorinating the nonmagnetic ash fraction at 550/sup 0/C for 30 minutes. This reduced the iron oxide content to less than 4 percent by weight. Chlorine flow rates affected the reaction rate much more drastically than temperatures. This suggested that diffusion was the major rate-controlling step. Besides Fe/sub 2/O/sub 3/, Al/sub 2/O/sub 3/ and SiO/sub 2/, other oxides such as CaO, K/sub 2/O, Na/sub 2/O and MgO might have complicated the alumina recovery by forming individual chlorides or complexes. Investigating methods for separating more Fe/sub 2/O/sub 3/, and possibly CaO, K/sub 2/O, Na/sub 2/O and MgO from the nonmagnetic ash fraction before chlorinating it is highly recommended.
Date: October 1, 1977
Creator: Wijatno, H.
System: The UNT Digital Library
American Arms Sales to Iran and Power Politics in the Middle East (open access)

American Arms Sales to Iran and Power Politics in the Middle East

This thesis examines and evaluates the questions involved in American arms sales to Iran and Egypt. The first two chapters outline the historical background and present detailed analyses of Iran's political situations prior to 1968 and United States policy toward it in that period of time. Chapter Three considers the American policies towards Egypt and the United States arms sales to that country. The main argument of the thesis appears in chapter Four which explains the objectives of Iran's government in buying American arms and the United States government's objectives in selling arms to Iran. Conclusions on the study comprise the fifth chapter.
Date: December 1977
Creator: Aryanpur Kashani, Khosrow
System: The UNT Digital Library
Telluric and D. C. resistivity techniques applied to the geophysical investigation of basin and range geothermal systems. Part III. The analysis of data from Grass Valley, Nevada (open access)

Telluric and D. C. resistivity techniques applied to the geophysical investigation of basin and range geothermal systems. Part III. The analysis of data from Grass Valley, Nevada

A detailed interpretation is presented of E-field ratio telluric, bipole-dipole resistivity mapping, and dipole-dipole resistivity data obtained in the course of geophysical exploration of the Leach Hot Springs area of Grass Valley, Nevada. Several areas are singled out as being worthy of further investigation of their geothermal potential. Comparison of the three electrical exploration techniques indicates that: the bipole-dipole resistivity mapping method is the least useful; the dipole-dipole resistivity method can be very useful, but is, for practical purposes, exceptionally expensive and difficult to interpret; the E-field ratio telluric method can be a highly successful reconnaissance technique for delineating structures and relating the resistivities of different regions within the survey area.
Date: June 1, 1977
Creator: Beyer, J. H.
System: The UNT Digital Library
Telluric and D.C. Resistivity Techniques Applied to the Geophysical Investigation of Basin and Range Geothermal Systems, Part III: The Analysis of Data From Grass Valley, Nevada (open access)

Telluric and D.C. Resistivity Techniques Applied to the Geophysical Investigation of Basin and Range Geothermal Systems, Part III: The Analysis of Data From Grass Valley, Nevada

This paper contains a detailed interpretation of E-field ratio telluric, bipole-dipole resistivity mapping, and dipole-dipole resistivity data obtained in the course of geophysical exploration of the Leach Hot Springs area of Grass Valley, Nevada. Several areas are singled out as being worthy of further investigation of their geothermal potential. Comparison of the three electrical exploration techniques indicates that: the bipole-dipole resistivity mapping method is the least useful; the dipole-dipole resistivity method can be very useful, but is, for practical purposes, exceptionally expensive and difficult to interpret; the E-field ratio telluric method can be a highly successful reconnaissance technique for delineating structures and relating the resistivities of different regions within the survey area.
Date: June 1, 1977
Creator: Beyer, J.H.
System: The UNT Digital Library