County Level Population Estimation Using Knowledge-Based Image Classification and Regression Models (open access)

County Level Population Estimation Using Knowledge-Based Image Classification and Regression Models

This paper presents methods and results of county-level population estimation using Landsat Thematic Mapper (TM) images of Denton County and Collin County in Texas. Landsat TM images acquired in March 2000 were classified into residential and non-residential classes using maximum likelihood classification and knowledge-based classification methods. Accuracy assessment results from the classified image produced using knowledge-based classification and traditional supervised classification (maximum likelihood classification) methods suggest that knowledge-based classification is more effective than traditional supervised classification methods. Furthermore, using randomly selected samples of census block groups, ordinary least squares (OLS) and geographically weighted regression (GWR) models were created for total population estimation. The overall accuracy of the models is over 96% at the county level. The results also suggest that underestimation normally occurs in block groups with high population density, whereas overestimation occurs in block groups with low population density.
Date: August 2010
Creator: Nepali, Anjeev
System: The UNT Digital Library
Employer Attitude toward the Mentally Retarded - an Application of a Cognitive Theory of Attitude Structure (open access)

Employer Attitude toward the Mentally Retarded - an Application of a Cognitive Theory of Attitude Structure

It was the purpose of this study to investigate some of the factors related to employers' attitudes toward the hiring of a mentally retarded individual. More specifically, an attempt was made to answer the question, "Why do employers hold favorable or unfavorable attitudes toward the hiring of the retarded?"
Date: August 1966
Creator: Weinberger, Mary Ann
System: The UNT Digital Library
A Comparative Study of the Cost of Operating the Rural High Schools of Collin County Before and After Gilmer-Aikin Legislation (open access)

A Comparative Study of the Cost of Operating the Rural High Schools of Collin County Before and After Gilmer-Aikin Legislation

Inasmuch as it has been assumed by the people of the State of Texas that the cost of operating the public school systems has risen since the Gilmer-Aikin Bills have gone into effect, the purpose of this study is to determine just what cost items have increased and to what extent. There are many cost items to be considered in the operation of a public school, and they have varied from year to year since the beginning of public school operation. This study attempts to determine those increased cost items in rural high schools which can be contributed directly to the passage of the Gilmer-Aikin Bills.
Date: August 1950
Creator: Pinkerton, Woodrow W.
System: The UNT Digital Library
Implications of Social Class Structure and Developmental Tasks for Teaching Techniques in Home and Family Life Education (open access)

Implications of Social Class Structure and Developmental Tasks for Teaching Techniques in Home and Family Life Education

Can home and family life education incorporate sociological findings, psychological procedures, and frames of reference typical of lower and middle classes into educational techniques and content which will assist adolescents to achieve certain developmental tasks more satisfactorily?
Date: August 1954
Creator: Evans, Mary E. (Mary Elizabeth)
System: The UNT Digital Library
A Study of some Relationships between Level of Self-Concept, Academic Achievement and Classroom Adjustment (open access)

A Study of some Relationships between Level of Self-Concept, Academic Achievement and Classroom Adjustment

The purpose of this study is two-fold: (1) to evaluate an instrument for measuring the self-concept of middle grade children; and (2) to determine the relationship of a middle-grade child's self-concept to his peer status, his classification by the teacher as a problem in behavior or classroom management, and to his academic achievement.
Date: August 1953
Creator: Reeder, Thelma Adams
System: The UNT Digital Library
The Preparation and Work of High School Teachers in Collin County (open access)

The Preparation and Work of High School Teachers in Collin County

"The aim of this study is to examine some of the factors and conditions underlying the preparation and work of the high school teachers in Collin County for the year 1936-1937 only. In finding and tabulating the existing factors and conditions, it is hoped that this will be of help in making improvements in the present schedule for the training of high school teachers."--leaf 2
Date: August 1937
Creator: Alexander, Mabel Parker
System: The UNT Digital Library
A Study of McKinney's School System with Reference to the Financial Status, the Educational Plant, the Educational Staff and the Pupils (open access)

A Study of McKinney's School System with Reference to the Financial Status, the Educational Plant, the Educational Staff and the Pupils

"The purpose of this study is to determine the present status of the McKinney school system in regard to the financial ability, the school plant, the teaching staff, and the pupils by making a profound comparison with general practices and statndards set up by accepted authorities and offering constructive criticism and recommendations that are needed, as obviously shown by comparison."--leaf 2
Date: August 1937
Creator: Alexander, Arlin Albert
System: The UNT Digital Library
The Organization and Development of Consumer Cooperatives in Plano, Texas (open access)

The Organization and Development of Consumer Cooperatives in Plano, Texas

The writer proposes in this study to make a survey of the organization and development of consumer cooperatives in Plano, Texas. Various phases of the development and present status of the consumer cooperatives are to be dealt with including history of organization, financial growth, operating procedure, management, benefits to the community, comparison with Rochdale Principles, and the reasons for the success of the cooperatives in the Plano community.
Date: August 1949
Creator: Marshall, Vada G.
System: The UNT Digital Library
Reconstruction in Collin County, Texas, 1865-1876 (open access)

Reconstruction in Collin County, Texas, 1865-1876

This is a work of local history examining the course of Reconstruction in Collin County, Texas. National and state level surveys of Reconstruction often overlook the experiences of communities in favor of simpler, broader narratives. The work proceeds chronologically, beginning with the close of the Civil War, and tells the story of Collin County as national Reconstruction progressed and relies on works of professional and non-academic historians, oral histories, census data, and newspapers to present a coherent picture of local life, work, and politics. The results exemplify the value of local history, as local conditions influenced the course of events in Collin County as much as those in Austin and Washington D.C. The story of Reconstruction in Collin County is one of anomalous political views resulting from geographical exclusion from the cotton culture of Texas followed by a steady convergence. As Reconstruction progressed, Collin County began to show solidarity with more solidly conservative Texas Counties. The arrival of railroads allowed farmers to move from subsistence agriculture to cash crop production. This further altered local attitudes toward government, labor, voting rights, and education for Freedmen. By the end of Reconstruction, Collin County had all but abandoned their contrarian social and political …
Date: August 2015
Creator: Thompson, Jesse R.
System: The UNT Digital Library