The Gifted Child Today, Volume 11, Number 4, Issue 57

The Gifted Child Today, Volume 11, Number 4, Issue 57

Date: 1988-07/1988-08
Creator: Gold, Marvin J.; Fagerstrom, Martha; Beck, Charles; Smart, Nigel; Barber, Constance & Campbell, Sandra
Description: Table of contents and an article on the Texas Academy of Mathematics and Science by Annetta Ramsey and Rogers Redding in a volume of The Gifted Child Today, with an emphasis on college programs for gifted youngsters.
Contributing Partner: Texas Academy of Mathematics and Science
Pressure Dependence of Line Widths of Microwave Spectra of Sulphur Dioxide

Pressure Dependence of Line Widths of Microwave Spectra of Sulphur Dioxide

Date: December 1972
Creator: Yang, Wei Han
Description: Measurements of line width parameters for eleven rotational transitions of type (J -- J + 1) of SO2 were made and are reported herein. The line width quantum number (J) trend was obtained. The microwave spectrograph used for these measurements of line width is described. Operational methods to operate the spectrograph are presented and discussed, with particular attention given to how to measure the line width. Suggestions for future avenues of probing this molecule to ascertain the non-uniform behavior of the line width parameter over the quantum number and frequency range are given.
Contributing Partner: UNT Libraries
Kinetics and Mechanisms of Ligand Exchange Reactions of Chelate Complexes

Kinetics and Mechanisms of Ligand Exchange Reactions of Chelate Complexes

Date: May 1989
Creator: Cortés, José E. (José Enrique)
Description: Certain ligand substitution reactions proceed to a complete displacement of the chelate ligand. Certain reactions proceed through a mechanism involving an initial fission of the tungsten-sulfur bond to afford a coordinatively-unsaturated intermediate which is rapidly attacked by chlorobenzene. The resulting solvated intermediate establishes an equilibrium which involves desolvation-solvation. Although main group organometallic chemistry has received a great deal of attention, this discussion will be centered in organotransition metal chemistry, in particular, metal carbonyls.
Contributing Partner: UNT Libraries
An Analysis of the Perceptions of Physics Teaching Effectiveness as Viewed by Students and Physics Instructors in Universities in Thailand

An Analysis of the Perceptions of Physics Teaching Effectiveness as Viewed by Students and Physics Instructors in Universities in Thailand

Date: August 1988
Creator: Chayan Boonyaraksa
Description: The purpose of this study was to investigate the perceptions of the physics instructors, major-physics students, and nonmajor-physics students regarding actual teaching performance and effective teaching performance. The sample consisted of a total of 56 physics instructors, 120 major-physics students, and 120 nonmajor-physics students at eight public universities in Thailand. A total of 53 physics instructors or 94.64 percent, 101 major-physics students or 84.17 percent, and 107 nonmajor-physics students or 89.17 percent responded in this study. Multivariate analysis of variance, univariate analysis, one-way analysis of variance, and multiple regression were used in the follow-up assessment, with the .05 level of significance. The physics instructors, major-physics students, and nonmajor-physics students perceived actual teaching performance in class to be significantly different from effective teaching performance. The three groups rated actual teaching performance on every factor to be less than sffective teaching. There was a significant difference between the physics instructors' perceptions and the major-physics students' perceptions regarding actual teaching performance, and also there was a significant difference between the physics instructors' perceptions and the nonmajor-physics students' perceptions regarding actual teaching performance. However, there was no significant difference between major-and nonmajor-physics students' perceptions regarding actual teaching performance. There was no significant difference among ...
Contributing Partner: UNT Libraries
ReSource, Volume 1, Number 1, [1984]

ReSource, Volume 1, Number 1, [1984]

Date: 1984
Creator: North Texas State University
Description: ReSource magazine includes articles and notes about research at North Texas State University in various academic fields.
Contributing Partner: University Relations, Communications & Marketing department for UNT
ReSource, Volume 3, Number 1, [1986]

ReSource, Volume 3, Number 1, [1986]

Date: 1986
Creator: North Texas State University
Description: ReSource magazine includes articles and notes about research at North Texas State University in various academic fields.
Contributing Partner: University Relations, Communications & Marketing department for UNT
Microwave Spectra of ¹³C Isotopic Species of Methyl Cyanide in the Ground, v₈=1 and v₈=2 Vibrational States

Microwave Spectra of ¹³C Isotopic Species of Methyl Cyanide in the Ground, v₈=1 and v₈=2 Vibrational States

Date: May 1988
Creator: Tam, Hungsze
Description: The problem of the quadrupole interaction occurring in a vibrating-rotating C₃v symmetric top molecule has been studied in detail. The quadrupole interaction has been treated as another perturbation term to a general frequency expression accounting for the vibrating-rotating interaction of the molecule so that a complete frequency formula is obtained for both interactions, and from which hyperfine spectral components are predicted and measured. The hyperfine transitions in the ground, and v₈=1 and v₈=2 excited vibrational states of the ¹³C isotopes of methyl cyanide have been investigated in the frequency range 17-72 GHz, primarily in the low J transitions (0≤J≤3). The study of the ground state of isotope i3CH3i3CN, and the v₈=1, v₈=2 excited vibrational states for all the isotopes have been conducted here for the first time. A substantial perturbation has been discovered and discussed at the ΔJ=3→4 transitions within the Kl=1 sets in the v₈=1 mode for isotopes ¹³CH₃CN and CH₃¹³CN. A total of 716 hyperfine transitions have been assigned from measurements, only 7 of which have been measured previously. A total of 84 molecular constants have been reported; 70 of these constants are derived for the first time from microwave data.
Contributing Partner: UNT Libraries
ReSource, Volume 8, Number 1, Fall 1991

ReSource, Volume 8, Number 1, Fall 1991

Date: 1991
Creator: University of North Texas
Description: ReSource magazine includes articles and notes about research at University of North Texas in various academic fields.
Contributing Partner: University Relations, Communications & Marketing department for UNT