388 Matching Results

Search Results

Results: 1 - 24 next
open access

Effects of Carbaryl (1-Naphthyl-n-methylcarbamate) on Trichocorixa Reticulata (Hemiptera: Corixidae) and Glyptotendipes Barbipes (Diptera: Chironomidae)

Description: My study of the effects of carbaryl in aquatic systems under controlled laboratory conditions emphasized four major objectives: (1) to determine the acute toxicity of carbaryl to the herbivorous adult and immature Trichocorixa reticulata (Guerin)(Hemiptera: Corixidae), and to the omnivorous larvae of Glyptotendipes barbipes (Staeger) (Diptera: Chironomidae) under static bioassay; (2) to adapt a quantitative method of analysis for carbaryl in water and whole insect tissue extract; (3) to measure… more
Date: December 1971
Creator: Gash, Stephen L.
Partner: UNT Libraries
open access

PROCESSING OF SODIUM--POTASSIUM NIOBATE CERAMICS.

Description: Sintering studies of undoped (Na{sub 0.5}K{sub 0.5})NbO{sub 3} and the same material doped with 1/2, 1, 2, and 4 mole percent BaO and 2 mole % B{sub 2}O{sub 3} were made. The persistence of a second phase after calcining to form the compound led to a study of reactions occurring during calcination. The calcining of sodium-potassium niobates involves the formation of an intermediate compound (the second phase) and its subsequent reaction with sodium oxide and potassium oxide to form (Na{sub 0.5}… more
Date: January 1, 1971
Creator: Powell, B.R. Jr.
Partner: UNT Libraries Government Documents Department
open access

A History of the Texas Industrial Arts Association from 1955 to 1971

Description: "The purpose of this study was to record a history of the Texas Industrial Arts Association from 1955 to 1971. Information was sought concerning the following problems: (1) What circumstances prompted the founding of the Texas Industrial Arts Association? (2) Who were those instrumental in founding the Texas Industrial Arts Association? (3) What were the purposes for which the Texas Industrial Arts Association was founded and (4) What have been the major contributions of the association?...the … more
Date: December 1971
Creator: Williams, David A.
Partner: UNT Libraries
open access

A Study of Four-Mallet Grips Used in Playing Keyboard Percussion Instruments

Description: The purpose of this study was to evaluate the efficiency of three common grips used in four-mallet playing. The three grips were referred to as (a) the Musser grip, (b) the cross stick grip No. 1, and (c) the cross stick grip No. 2. A thorough description (including illustrations) was given for each grip. The evaluation of efficiency was made through research testing, which was conducted by the author. Forty individuals participated in the research testing. Four tests were conducted, and each t… more
Date: August 1971
Creator: Glassock, Lynn
Partner: UNT Libraries
open access

Welcome, All Wonders in One Sight

Description: The structure of the present work is clearly described in the foregoing definition. Consisting of fourteen movements of varying length, it is primarily a vocal work for soprano, tenor, and baritone soloists, mixed chorus and an orchestra of moderate size.
Date: May 1971
Creator: Cram, James D., 1931-1974.
Partner: UNT Libraries
open access

Piece for Orchestra and Prepared Tape

Description: This composition is a two-movement work for orchestra and prepared electronic tape. The second movement preceeded by a solo tape prologue. The work requires approximately twenty-five minutes for performance. One of the purposes for the composition of this work was to explore the possibilities, potentialities, and limitations of combining orchestral resources and taped electronic material.
Date: 1971
Creator: Ator, James D.
Partner: UNT Libraries
open access

The Sacrilege of Alan Kent : A Monodrama in Nine Scenes for Baritone Soloist, Orchestra and Tape

Description: The Sacrilege of Alan Kent is a monodrama in nine scenes for baritone soloist, orchestra, and tape. This composition may be presented as a dramatic or concert work. From the standpoint of a dramatic form, it may be considered an opera for one performer in nine brief scenes or vignettes. As a concert work, it resembles a song cycle.
Date: December 1971
Creator: Hutchison, Warner, 1930-
Partner: UNT Libraries
open access

Prediction of Success in Computer Programming Courses

Description: This study dealt with the problem of investigating the validity of two recently developed paper-and-penci1 tests of programmer aptitude , the Aptitude Test for Programmer Personnel (ATPP) and the Computer Programmer Aptitude Battery (CPAB), in predicting success in computer programming.
Date: May 1971
Creator: Dempsey, Betty J .
Partner: UNT Libraries
Back to Top of Screen