The purpose of this study was to compare the effectiveness of the two instructional strategies for six phonic word-attack skills objectives and to focus on the following specific questions: (a) When student teachers use a basal-reader-oriented strategy (Treatment I) for teaching phonic word-attack skills, what will be the effects on elementary pupil achievement of these skills? (b) When student teachers use a systematic instructional strategy (Treatment II) for teaching phonic word-attack skills, what will be the effects on elementary pupil achievement of these skills? (c) How will the effects of these strategies compare? Written criterion-referenced phonic word-attack skills pre-tests were administered to approximately 110 third and fourth grade pupils. The validity of the criterion-referenced tests was judged by a team of reading specialists from North Texas State University. The reliability coefficients of the tests ranged from .57 to .93 and all were significant at the .01 level. This report concludes that when elementary pupil achievement of phonic word-attack skills is used as the criterion for student teacher effectiveness then training in the conscientious application of systematic instructional procedures incorporating research validated learning principles is a more effective procedure than requiring student teachers to follow the recommended procedures in basal readers. …

The problem of the study was to identify stress arising in psychological counseling by identifying variations in the vocal pitch (fundamental frequency level) of clients' voices. Hypotheses were established to (1) determine the number of categories describing acoustically similar clients' responses within the counseling session and compare these categories with ratings of client stress, (2) determine the relationship between ratings of client stress and different fundamental frequency characteristics, and (3) compare fundamental frequency characteristics of in-session and repeated client verbalizations. Recommendations included (1) considering an improved acoustical analysis method capable of providing immediate feedback which could be used to study both moment-to-moment and longitudinal stress changes, (2) correlating vocal pitch variations with other physiological manifestations indicative of stress, (3) applying acoustical analysis to aid in counselor training, and (4) using acoustical analysis to study different specific types of populations.

Rhetoric, seen either as the art of persuasion or as the art of figurative expression, has been largely neglected as an approach to the poetry of the Romantics. The most important reason for this seems to be the rejection of rhetoric by the Romantics themselves. As a result of negative comments about rhetoric by Coleridge, Wordsworth, Shelley, and Keats, scholars seeking clues about the Romantics' literary principles in their critical writings have agreed that eighteenth-century rhetoric was either abandoned or substantially altered by early nineteenth century poets. The eighteenth-century belief that figures possess a unique power of communicating an author's passions and emotions continued to be transmitted as a viable literary tradition in the nineteenth century. Poetry was thought to have special privilege in the employment of rhetorical devices. In practice, if not in theory, early nineteenth-century poets did not abandon the use of such devices in their creations. An analysis of the role of rhetorical figures in the works of Coleridge, Wordsworth, Byron, Shelley, and Keats demonstrates that it is a mistake to envision the poetry of the Romantic movement as a spontaneous outgrowth of an abrupt shift in poetic taste, a shift which demanded the omission of classical …

The correlation between the carbon-proton and proton-proton coupling constants have been studied in various 13 systems. Isocrotonic acid-carboxyl-3C, crotonic acid- 13 13 carboxyl-3C, and 5-norbornene-2-carboxylic acid-carboxyl-3C- 1,5,6,7,7-hexachloro were synthesized and their carbonproton coupling constants were analyzed. Nmr studies showed the magnitudes of the carbon-proton coupling constants to correlate well with analogous protonproton coupling constants, although the values of the couplings were larger than expected. The geminal olefinic couplings were considerably larger than all other couplings, but they were self-consistent. The signs of the carbon-proton coupling constants also were in agreement without exception with the signs of analogous proton-proton coupling constants.

Structural properties of phosphoglucose isomerases isolated from a variety of species have been compared by peptide fingerprinting, predicted amino acid sequence homologies and by denaturation and renaturation studies. The enzymes are more readily denatured in guanidinium chloride than in urea, and the isomerase isolated from yeast is more stable toward acid pH than the rabbit muscle enzyme. The rates of guanidinium chloride-induced denaturation are markedly increased by ionic strength and decreased by substrates, competitive inhibitors or glycerol. The enzyme can be renatured, but only in the presence of glycerol. The renaturation process is dependent on protein concentration and temperature and provides a method for the formation of mixed species heterodimers.

The purpose of the present work is to study the bonding interactions between the substituents and the ring π system for a series of ortho and para MeₙH₃₋ₙM (M = C or Si, n = 0-3) substituted N,N-dimethylaniline . Both ground and excited-state interactions were studied and their magnitudes determined. The experimental data were then used in conjunction with molecular orbital calculations to differentiate among inductive, hyperconjugative, and d-pπ interactions on the ground and excited states. Overall, the study indicates that d orbital involvement in the interactions of organosilicon substituents with unsaturated systems is much less significant than is generally held. The importance of pₛᵢ⁻π and pₛᵢ⁻π* hyperconjugative interactions between silicon σ* orbitals and π system in producing the effects of silicon substitution on unsaturated systems has become more apparent.

Methylglyoxal synthetase, which catalyzes the formation of methylglyoxal and inorganic phosphate from dihydroxyacetone phosphate, was found in extracts of Proteus vulgaris. An efficient purification procedure utilizing ion exchange column chromatography and isoelectric focusing has been developed. Homogeneity of the enzyme preparation was confirmed by polyacrylamide gel electrophoresis and rechromatography.Two components of methylglyoxal synthetase were obtained upon isoelectric focusing. A comparison of the chemical and physical properties of the two components was carried out. The enzyme is a dimer. In the presence of inorganic phosphate, the hyperbolic saturation kinetics with dihydroxyacetone phosphate are shifted to sigmoidal.