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open access

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

Description: 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 (maxim… more
Date: August 2010
Creator: Nepali, Anjeev
open access

A Critical Study of the Programs of Boys' Clubs Sponsored by Organizations in McKinney, Denton, and Dallas, Texas to Determine their Significance in an Over All Guidance Program

Description: The eightfold purpose of this study was: 1. to evaluate the programs of boys' clubs sponsored by organizations in McKinney, Denton, and Dallas, Texas; 2. to obtain and study the aims and objectives of the programs of each club; 3. to obtain and study the aims and objectives of the active membership of the clubs; 4. to evaluate the programs in the light of an over-all guidance program; 5. to determine the different activities and their significance of mental, physical, emotional, economical, soc… more
Date: 1949
Creator: Drain, Maxie, A.
open access

Electricity in Rural Areas of North Texas

Description: "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… more
Date: January 1949
Creator: Greathouse, Charles Simmons
open access

Responsibility of the Secondary School for the Social Development of its Students

Description: The problem in this study is twofold. First, there will be an attempt to determine the values that organizations in the secondary school have for the development of its students. Second, a survey will be made of the four-year accredited high schools in District Five of Texas to determine how and to what extent they are realizing their responsibilities in this respect.
Date: 1947
Creator: Baxter, Billie Otella
open access

A Study of the Relationship Between the Use of Color for Text in Computer Screen Design and the Age of the Computer User

Description: This study addresses an individual's performance, relating it to eyesight changes due to the aging of the individual and to color computer screens used for computer-based-instruction not designed specifically for older students. This study determines how existing research in gerontology, human-computer interface, and color use in visual graphics can be applied to the design of computer screen displays containing color text and backgrounds and how various color combinations will affect performan… more
Date: December 1991
Creator: D'Angelo, John J.
open access

A Survey of Singers: Is Mental Imagery Used in the Conceptualization of Pitch and Vowel?

Description: Mental imagery is a common theme in research that clarifies how musical thought relates to musical performance. Unfortunately, minimal information exists regarding mental imagery and singers. The purpose of this study was to probe the role, if any, mental imagery plays in the conceptualization of pitch and vowel. By interviewing singers at differing levels of expertise, basic information was obtained about the mental processes used by singers. Through evaluations of the singers' mental processe… more
Date: December 1992
Creator: Moyer, Karen E. (Karen Elizabeth)

Water Quality Corridor Management for Restoration (WQCM-R) Modeling Dataset

Description: The dataset was developed to support research intended to develop a spatially-explicit model that prioritizes riparian areas in terms of potential for ecosystem restoration specifically to improve water quality downstream of the riparian area, and ultimately improve drinking water quality. The model was developed and then tested on the Lewisville Lake watershed (north central Texas, just north of Dallas, Texas, USA). The dataset contains environmental data for 90 sub-watersheds that form the ov… more
Date: June 10, 2019
Creator: Atkinson, Samuel F.
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