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Simulating Thermal and Chemical Spills in Coupled Cooling Reservoirs (open access)

Simulating Thermal and Chemical Spills in Coupled Cooling Reservoirs

Hot water discharges and potential chemical spills are factors that threaten water quality in cooling reservoirs of chemical and power plants. In this thesis, three models are used to analyze the impact of these factors in a particular case study.
Date: August 1997
Creator: Qiu, Bin
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Effect of Job Congruency and Discrepancy with the National Athletic Trainers Association Athletic Trainer Role Delineation on the Job Characteristics Model of Work Redesign in Secondary School Athletic Trainers in Texas (open access)

The Effect of Job Congruency and Discrepancy with the National Athletic Trainers Association Athletic Trainer Role Delineation on the Job Characteristics Model of Work Redesign in Secondary School Athletic Trainers in Texas

This study investigated person-situation relations of professional preparation and job classification of secondary school athletic training positions with core job dimensions and affective outcomes within Hackman and Oldham's 1980 Job Characteristics Model. Research focused on which relations show increased affective outcomes; relationships between core job dimensions and affective outcomes; and characteristics of the core job dimensions of task identification, task significance, and skill variety of athletic trainer tasks as defined by the National Athletic Trainers Association Board of Certification, Inc. 1995 Role Delineation Study.
Date: August 1997
Creator: Bunt, Stephen Churchill
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Examining the Relationship between Variability in Acquisition and Variability in Extinction (open access)

Examining the Relationship between Variability in Acquisition and Variability in Extinction

Using the "revealed operant" technique, variability during acquisition and extinction was examined with measures of response rate and a detailed analysis of response topography. During acquisition, subjects learned to emit four response patterns. A continuous schedule of reinforcement (CRF) for 100 repetitions was used for each pattern and a 30 min extinction phase immediately followed. One group of subjects learned the response patterns via a "trial-and-error" method. This resulted in a wide range of variability during acquisition and extinction. Only one subject emitted a substantial amount of resurgent behavior. A second group of subjects was given instructions on what keys to press to earn reinforcers. This group had less variability in acquisition and extinction and resurgent responding was prevalent.
Date: December 1997
Creator: Neff, Bryon (Bryon R.)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
AIDS Preventative Behavior Among Taiwanese University Students (open access)

AIDS Preventative Behavior Among Taiwanese University Students

This study used the Health Belief Model to examine the predictors of AIDS preventive behavior. The independent variables were the variables of individual perception, modifying factors (psychological variables), and likelihood variables. The respondents, the Taiwanese students of the University of North Texas, were influenced both by Chinese sexuality and Western values in their AIDS-risk behavior. The results revealed that 90% of the respondents were misinformed on the availability of AIDS vaccine. In addition, a majority of the students were either abstaining from sex or practicing monogamy. Using Pearson's correlation coefficient and multiple regression analysis, this study found that the psychological variables rather than cognitive variables significantly influenced the respondents' AIDS preventive behavior. Finally, suggestions were made for future research on AIDS, and for AIDS preventive behavior campaigns.
Date: May 1997
Creator: Wang, Ya-Chien
Object Type: Thesis or Dissertation
System: The UNT Digital Library
An Experimental Investigation on the Effects of Learning Style and Presentation Methods on Knowledge Acquisition in a University Classroom Environment (open access)

An Experimental Investigation on the Effects of Learning Style and Presentation Methods on Knowledge Acquisition in a University Classroom Environment

The purpose of this study was to investigate the effects of four learning styles (accommodator, assimilator, converger, and diverger) and two different presentation methods (traditional and computer-based) on knowledge acquisition in a university classroom.
Date: December 1997
Creator: Ryu, Youngtae
Object Type: Thesis or Dissertation
System: The UNT Digital Library
A Comparative Analysis of Curricular Programs in Private, Public Choice, and Public Attendance-Zone Schools in San Antonio, Texas (open access)

A Comparative Analysis of Curricular Programs in Private, Public Choice, and Public Attendance-Zone Schools in San Antonio, Texas

The purpose of this study was to examine curricular programs in private, public choice, and public attendance-zone schools to determine whether differences exist among curricular programs in the three types of schools. The findings from the student survey data indicated that private school students reported their curriculum to be more challenging than public school students, but no other significant differences were noted. Findings from the teacher survey showed more positive results for private schools in indicators of a challenging curriculum, expectations of students, school climate, and external support than public schools. This study showed that of the types of schools examined, Catholic schools exhibited the most consistent and well written curriculum that reflected the four research questions. Future research needs to be done to establish whether these indicators of a challenging curriculum result in higher student achievement.
Date: December 1997
Creator: Miller, Alice Elizabeth Owen
Object Type: Thesis or Dissertation
System: The UNT Digital Library
A Comparison of a Computer-Administered Test and a Paper and Pencil Test Using Normally Achieving and Mathematically Disabled Young Children (open access)

A Comparison of a Computer-Administered Test and a Paper and Pencil Test Using Normally Achieving and Mathematically Disabled Young Children

This study investigated whether a computer-administered mathematics test can provide equivalent results for normal and mathematically disabled students while retaining similar psychometric characteristics of an equivalent paper and pencil version of the test. The overall purpose of the study was twofold. First, the viability of using computer administered assessment with elementary school children was examined. Second, by investigating items on the computer administered mathematics test for potential bias between normally achieving and mathematically disabled populations, it was possible to determine whether certain mathematical concepts consistently distinguish between the two ability groups.
Date: May 1997
Creator: Swain, Colleen R. (Colleen Ruth)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Perception of Western Wear Status Symbols Among Western Wear Consumers (open access)

The Perception of Western Wear Status Symbols Among Western Wear Consumers

This study determined whether an association exists between the perception of western wear status symbols and demographic characteristics {i.e., gender, age, income, and education level) among Texas American Paint Horse Association members.
Date: August 1997
Creator: Lindsey, Julie E. (Julie Elizabeth)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Strategic Planning for Texas Community Colleges (open access)

Strategic Planning for Texas Community Colleges

Over the past three to four decades the community college has experienced some tremendous periods of growth and success. Much of this has been due to a growing economy and a growing population. However, the future of the community college may be in for some changes. The effects these changes are having can mean opportunity or disaster depending on the readiness of the institution. The change occurring today requires future insight, swifter action, and a proactive response. Community colleges cannot afford to leave planning for crisis situations. A proactive stance must be taken and tough questions must be asked. In 1991 the Seventy-second Texas Legislature tasked the Legislative Budget Board of Texas with the assignment of developing a long-range strategic plan for state government based on individual agency plans. The passing of House Bill No. 2009 required that all agencies of Texas State Government, including community colleges, develop a strategic plan. The purpose of this study was to determine the significance of certain independent variables towards the perceived importance of three dependent variables - statements of purpose, statements of direction and statements of impact - found in the Legislative Budget Board Strategic Planning Template. Research shows that there are a …
Date: May 1997
Creator: Minatra, Rodger W. (Rodger Walton)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Participation in Student Financial Aid Programs during the Freshman Year and Persistence in a Private University (open access)

Participation in Student Financial Aid Programs during the Freshman Year and Persistence in a Private University

The study determined the overall persistence rate of first-time full-time entrants into a mid-sized private university during the fall semesters 1989 to 1991 to the 2nd year (1990 to 1992). The study compared the retention rate of recipients and nonrecipients of a variety of financial aid programs. Included is a comparison of groups receiving various types of financial assistance and whether or not there are differences between the groups with respect to types of assistance, gender, ethnicity (African American, Hispanic, Anglo), high school grade point average, and national test scores (SAT, ACT). The types of assistance studied were categorized by academic scholarships, university-operated student employment, need-based grants, activity awards, entitlements, and loans. The question of whether renewal, elimination, or reduction in assistance relates to retention was also studied.
Date: August 1997
Creator: Munson, Leo W.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Texas Public School Library Media Specialists' Perceptions of the Use of the Internet in their Schools (open access)

Texas Public School Library Media Specialists' Perceptions of the Use of the Internet in their Schools

With the advent of the 21st century, technological innovations are transforming the face of education and the school library media center. One of these significant developments is the ability to communicate through the Internet. The purpose of this study is to examine the perceptions of Texas public school library media specialists who are active Internet users about their utilization of the Internet, and how their efforts in implementing and supervising Internet access in their school library media centers impact the Texas public schools that they serve. A survey instrument of Likert items was developed that queried these public school library media specialists for their perceptions of Internet use in their schools. MANOVA was the chosen statistical measure for this study. An initial electronic mail-out to 1,232 Texas public school library media specialists (K-12) with Internet addresses were contacted to participate in this study. After a time frame of one month, 196 Texas school library media specialists e-mailed the researcher, confirming their willingness to be a survey participant. All respondents to this e-mail request participated in this study, and a second U.S. mail-out was sent containing the actual survey instrument. The researcher found that the use of the Internet by school …
Date: June 1997
Creator: Bruns, Loretta A. (Loretta Ann)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
An Analysis of the Impact of Curriculum Management Audits on Public School Systems in Texas (open access)

An Analysis of the Impact of Curriculum Management Audits on Public School Systems in Texas

The purposes of this study were to (1) identify the recommendations of Curriculum Management Audits conducted in Texas Public School systems, (2) determine the degree to which each of the recommendations had been implemented, and (3) determine the perceptions of stakeholders as to the factors instrumental in the real and potential impact of the audit. The researcher conducted interviews with superintendents and key central office administrators with a working knowledge of the audit report in each of the eleven Texas school districts studied. Respondents were asked to rate recommendations written for their districts using the following descriptors: Implemented, In Progress, Plan to Implement, Recommendation Modified, No Implementation. The ranking of recommendation implementation revealed that 85% of the recommendations made in the 11 audit reports reviewed in this study had received action toward implementation to some degree. Respondents were also asked to cite factors which facilitated or impeded recommendation implementation. Significant factors facilitating the implementation of recommendations were reported to be time, organizational structure/personnel and planning. The analysis of the collective recommendations revealed that school board policies were not adequate to direct the design, delivery and monitoring of curriculum when measured against audit Standard One criteria. School districts in Texas rely …
Date: August 1997
Creator: Murdock, Sunnye (Sunnye J.)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Assessment of the Perceived Competencies Possessed by Women Administrators in Vocational Education at Community Colleges in Texas (open access)

Assessment of the Perceived Competencies Possessed by Women Administrators in Vocational Education at Community Colleges in Texas

The need for a high-quality workforce to meet increased competition in the world economy has increased the need for competent vocational administrators in public 2-year postsecondary institutions. Researchers have agreed that vocational education is in a state of metamorphosis and must change to meet its challenges in the coming century. At the same time, more women are seeking and obtaining vocational administrative positions. Several studies have been done to identify the competencies needed by vocational administrators to perform their duties, but there has been little research on the actual ability to perform the administrative tasks identified by these studies. Two main purposes of this study are: (a) to determine the perceived level of administrative competencies possessed by women administrators in vocational education at the community college level in Texas; (b) to determine the adequacy of the preservice training received by these administrators to perform their administrative functions. Of the 175 women administrators randomly selected to participate in the study, 71% completed the Administrator Task Inventory. In addition to the descriptive statistics, two multiple regression analyses were tested. First, principal component analysis was used to reduce the number of dependent variables from 11 to 2, after which two multiple regression analyses …
Date: May 1997
Creator: Chiawa, Chioma B. (Chioma Bernadette)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Effect of Technology Integration Education on the Attitudes of Teachers and their Students (open access)

Effect of Technology Integration Education on the Attitudes of Teachers and their Students

This study analyzed the effect of technology integration education on teachers' and students' attitudes toward information technology. Two instruments measuring similar attributes were used to assess teachers' and students' attitudes. Differences in pre- and post-test scores were used to determine changes that occurred during the course of the study.
Date: December 1997
Creator: Christensen, Rhonda
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Southwest Retort, Volume 50, Number 10, September 1997 (open access)

Southwest Retort, Volume 50, Number 10, September 1997

This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date: September 1997
Creator: American Chemical Society. Dallas/Fort Worth Section.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
Southwest Retort, Volume 50, Number 13, December 1997 (open access)

Southwest Retort, Volume 50, Number 13, December 1997

This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date: December 1997
Creator: American Chemical Society. Dallas/Fort Worth Section.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
Southwest Retort, Volume 50, Number 12, November 1997 (open access)

Southwest Retort, Volume 50, Number 12, November 1997

This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date: November 1997
Creator: American Chemical Society. Dallas/Fort Worth Section.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library

Faculty Recital: 1997-01-17 - Linda Di Fiore, contralto

Access: Use of this item is restricted to the UNT Community
A faculty and guest artist recital performed at the UNT College of Music Recital Hall.
Date: January 17, 1997
Creator: Di Fiore, Linda
Object Type: Sound
System: The UNT Digital Library
The Role of a Point Loss Contingency on the Emergence of Derived Relations in the Absence of Original Relations (open access)

The Role of a Point Loss Contingency on the Emergence of Derived Relations in the Absence of Original Relations

The role of point loss for symmetrical relations introduced simultaneously with probe trials in the absence of original relations on all probe trial performances was evaluated. Training was completed after six conditional discriminations were established in two contexts. Point loss was introduced simultaneously with probe trials in the absence of original relations in the first context. Probe trials with no point loss in the absence of original relations were introduced in the second context. The simultaneous introduction of probe trials and the point loss contingency may in some cases prevent the emergence of an equivalence class in the context that contained the point loss as well as in the context where no point loss occurred.
Date: December 1997
Creator: Michniewicz, Leslie (Leslie A.)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Iranian Access Television of Dallas: Cultural Issues, Preservation, and Community Formation (open access)

Iranian Access Television of Dallas: Cultural Issues, Preservation, and Community Formation

This study focused on the televisual and cultural practices of Iranians via public access television in Dallas, Texas. It includes analysis of format and content. It combines demographic, structural, and statistical information with a culturalist and interpretive viewpoint in examining the efforts of Iranians, via access television programs, in preserving their culture and the formation of a coherent and active community in the Dallas/Fort Worth Metroplex.
Date: August 1997
Creator: Karimi, Mohammad, 1959-
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Along the Texas Forts Trail

Access: Use of this item is restricted to the UNT Community
The task of providing military defense for the Texas Frontier was never an easy one because the territory was claimed by some of the greatest querrilla fighters of all times—the Comanches, Kiowas, Apaches, and Lipans. Protecting a line running from the Red River southwest to El Paso was an impossible task, but following the Mexican War the federal government attempted to do so by establishing a line of forts. During the Civil War the forts were virtually abandoned and the Indians once again ruled the area. Following the war when the military began to restore the old forts, they found that the Indians no longer fought with bows and arrows but shouldered the latest firearms. With their new weapons the Indians were able to inflict tremendous destruction, bringing demands from settlers for more protection. In the summer of 1866 a new line of forts appeared through central Texas under the leadership of General Philip H. Sheridan, commander of federal forces in Louisiana and Texas. Guardians of a raw young land and focal points of high adventure, the old forts were indispensable in their day of service and it is fitting that they be preserved. In and around the forts and …
Date: October 15, 1997
Creator: Aston, B. W.
Object Type: Book
System: The UNT Digital Library

A Sniper in the Tower: the Charles Whitman Murders

Access: Use of this item is restricted to the UNT Community
On August 1, 1966, Charles Joseph Whitman ascended the University of Texas Tower and committed what was then the largest simultaneous mass murder in American history. He gunned down forty-five people inside and around the Tower before he was killed by two Austin police officers. During the previous evening he had killed his wife and mother, bringing the total to sixteen people dead and at least thirty-one wounded. The murders spawned debates over issues which still plague America today: domestic violence, child abuse, drug abuse, military indoctrination, the insanity defense, and the delicate balance between civil liberties and public safety. "An outstanding job of chronicling one of the most significant cases in the annals of American crime. . . . Lavergne skillfully researched, documented, and analyzed a case that in many ways defined the concept of ‘mass murder’ . . . will likely become a classic in anyone’s library of true crime editions."--James Alan Fox, Dean of Criminal Justice, Northeastern University, Boston, Massachusetts, and an authority on mass murder
Date: March 15, 1997
Creator: Lavergne, Gary M.
Object Type: Book
System: The UNT Digital Library
Southwest Retort, Volume 50, Number 7, March 1997 (open access)

Southwest Retort, Volume 50, Number 7, March 1997

This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date: March 1997
Creator: American Chemical Society. Dallas/Fort Worth Section.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
Southwest Retort, Volume 50, Number 6, February 1997 (open access)

Southwest Retort, Volume 50, Number 6, February 1997

This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date: February 1997
Creator: American Chemical Society. Dallas/Fort Worth Section.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library