Genetic Variation in a Population of the Plains Woodrat Neotoma micropus (open access)

Genetic Variation in a Population of the Plains Woodrat Neotoma micropus

Neotoma micropus from Jack County, Texas, were studied over a 9-month period. Loci from blood and saliva were used to determine genetic variation within the population. Deviations from Hardy-Weinberg equilibrium were found at one locus. The average temporal F over all seven loci was 0.040. Genetic structuring was subtle, fluctuated on a seasonal basis, and was due to differential migration or predation on genotypes. Heterozygotes tended to move more than homozygotes, and a greater proportion of heterozygotes were lost from the population during each season. Genetic variation was maintained in the population by immigrant individuals. This differential in dispersal of genotypes fits current models of reorganization within the genome of populations.
Date: August 1988
Creator: Stewart, John E. B. (John Edward Bakos)
System: The UNT Digital Library
A Comparison of the Socio-Economic Status with the School Status of the Third and Fourth-Grade Pupils of the Jermyn, Texas, Public School (open access)

A Comparison of the Socio-Economic Status with the School Status of the Third and Fourth-Grade Pupils of the Jermyn, Texas, Public School

The present study is concerned with the relation of the existent socio-economic family status to the school status of twenty-four third and fourth grade pupils in the Jermyn, Texas public school.
Date: 1940
Creator: Register, Celeste
System: The UNT Digital Library
Certain Procedures for the Improvement of Reading Skills in the Middle Grades (open access)

Certain Procedures for the Improvement of Reading Skills in the Middle Grades

The problem of this study was to demonstrate the effectiveness of certain recommended procedures for the improvement of reading skills in one fourth grade and one fifth grade class in the Jacksboro Elementary School. The purpose was to discover through testing and observation the level of each student and his specific reading needs.
Date: 1951
Creator: Clark, Sarah Elizabeth
System: The UNT Digital Library
Improving Reading in a Third Grade (open access)

Improving Reading in a Third Grade

The purpose of this study is to determine and evaluate a third grade reading program that will increase the individual child's reading ability and will stimulate maximum progress during a period of nine months. It is believed that through the development of this program a larger number of the children in this particular group will be able to make the transition from the primary type of reading to the intermediate level at the end of their third year in school.
Date: 1950
Creator: Ham, Mary Swan
System: The UNT Digital Library
Populism in Jack County, Texas (open access)

Populism in Jack County, Texas

With the rising tensions and strains created by modern America, historians have sought diligently to discover the answers to industrial America's problems. One answer lay in American reform movements, and as the New Deal reforms came under fierce attack in the 1950's, liberal historians sought diligently to give to reform movements historical authenticity.
Date: December 1973
Creator: Witherspoon, William Orville
System: The UNT Digital Library
The Relationship Between Mental Ability and Reading Achievement (open access)

The Relationship Between Mental Ability and Reading Achievement

The purpose of this study is to determine, by actual classroom experiment, the relationship between mental ability and reading achievement; and to ascertain the best methods of increasing reading ability. A secondary purpose in connection with this study was the critical evaluation of a testing program.
Date: 1945
Creator: Primm, Jewel van Landingham
System: The UNT Digital Library
Electricity in Rural Areas of North Texas (open access)

Electricity in Rural Areas of North Texas

"This study shows three things: (1) a precedent for the expenditure of public funds to teach electricity in our public high schools has already been established by the school system in the larger school systems of Texas, (2) the rural families living on electrified farms in the North Texas area want instruction of this type given to the boys and girls in their communities, and (3) both the rural people and the professional people of the North Texas area believe that instruction dealing with the use of electricity and electrical equipment had spread until by 1935 more than twenty-one million homes, about eighty percent of the total in America at that time, were electrified, only eleven American farms out of every 100 had central-station electricity. More than five million American farms lacked electric service. "--leaf 50.
Date: January 1949
Creator: Greathouse, Charles Simmons
System: The UNT Digital Library
Children's Preferences Between Realistic and Fantastic Stories in the First and Second Grades (open access)

Children's Preferences Between Realistic and Fantastic Stories in the First and Second Grades

The purpose of this study was to find the type of stories in which the children in the first and second grades were most interested. The writer wanted to determine whether or not there was a preference for fantastic or realistic stories in these grades, whether or not boys preferred one type of stories and girls another, and whether or not age and intelligence entered in as determining factors.
Date: June 1938
Creator: Ragland, Eulelia
System: The UNT Digital Library
A Physical Education Program for the Fifth, Sixth, Seventh, and Eighth Grade Boys in the Elementary School of Jacksboro, Texas (open access)

A Physical Education Program for the Fifth, Sixth, Seventh, and Eighth Grade Boys in the Elementary School of Jacksboro, Texas

The problem is to prepare and administer a physical education program for the fifth, sixth, seventh, and eighth grade boys in the elementary school of Jacksboro, Texas. The need for this study developed after the investigator had studied the few activities in which the fifth, sixth, seventh, and eighth grade boys in the elementary school of Jacksboro, Texas, were participating. It is the aim of the investigator to construct a physical education program that will give more boys an opportunity to participate in desirable activities.
Date: August 1950
Creator: Elenburg, Howard Melton
System: The UNT Digital Library