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Now showing items 21-30 of 662
Heterosis and heterosis retention for measures of female productivity of cattle of diverse biological types
(1987)
Breeding, calving and weaning records of cows produced in a diallel of Angus, Brahman, Hereford, Holstein and Jersey were used to characterize these breed types for measures of female productivity. First-generation crossbred ...
The digestive chemistry of pinto bean iron : in vitro and cannulated swine models
(1987)
The solubility, oxidation, reduction, adsorption, and reactivity of iron are known to influence its bioavailability. The purpose of this study is to investigate the above factors in digestive mixtures using spectrophotometry ...
A study of the barriers perceived as having impact on degree attainment by doctoral students in the College of Education, Texas A & M University
(1987)
The purpose of this study was to identify perceived situational, dispositional and institutional barriers which had a negative impact on doctoral students' completing their degree requirements, identify faculty perceptions ...
Simulation of vehicular impacts with safety-shaped barrier
(1987)
In the research described here, a vehicle/barrier crush model was developed and combined with a vehicle model to simulate impacts with the concrete safety-shaped barriers (CSSB). The crush model accounts for the effects ...
Pathogenesis, tissue tropism, and biochemical characterization of pneumotropic, nephrotropic, and vaccine strains of the infectious bronchitis virus
(1987)
The experiments were performed to determine the pathogenesis, tissue tropism, and persistence of Australian T, Arkansas 99, and Holland 52 infectious bronchitis viruses (IBV), and to compare protein and nucleic acid profiles ...
A forecast of future critical tasks for special education administrators
(1987)
The purpose of the study was to identify and rate critical tasks for the special education administrator for the time period I (0 to 5 years) and II (10 to 20 years), and to prioritize the tasks based on consensus so that ...
The isomerization of gold(I) ylide dimers and the preparation and structure of the gold(II) ylide dimers containing ligands coordinated through sulfur
(1987)
The preparation of the asymmetric gold dimer, 2, [Au(CH₂)₂P(C₆H₅)(CH₃)]₂, was carried out using Li[C₆H₅)(CH₃)P(CH₂)₂] and (C₆H₅)₃PAuCl. The trans isomer was isolated as the predominant product. Isomerization of trans-2 to ...
A parallelized rule-based system shell for monitoring applications
(1987)
Currently industry and academia are interested in finding ways to employ artificial intelligence technology in useful applications. Expert systems, a major subdivision of artificial intelligence, have been used successfully ...
The relationship between opportunity to learn basic reading skills and student achievement via computer assisted instruction
(1987)
The relationship between teachers' allocation of time for computer-assisted instruction (CAI) in reading and reading achievement scores of students in grades three and five was investigated. This study proposed the variable, ...
Californium-252 plasma desorption mass analysis of proteins adsorbed on polymer and modified-polymer surfaces
(1987)
A new Cf-252 plasma desorption mass spectrometer has been built specifically for the analysis of large biomolecules. This mass spectrometer was used to investigate the interactions between proteins adsorbed onto polymer ...