Itinerant Teachers of the Deaf and Hard of Hearing and Their Students in Australia: some state comparisons

To survey the work of itinerant teachers of the deaf and hard of hearing in Australia a mail survey of most of those teachers in four Australian states was conducted. The survey sought information about the professional and personal demographics and work characteristics of the teachers and their roles in working with integrated deaf and hard of hearing students. Teachers also reported on the characteristics and level of inclusion of a “sample student” randomly chosen from their caseloads. Information about the distribution of these students' characteristics and the types of services delivered in each state indicated that there were few differences among the states. It was found that Australian itinerant teachers generally reported that they were satisfied with their work and the placement of deaf and hard of hearing students in regular classes. The teachers generally used a “pull-out/ direct tutorial” mode of working rather than one of “consultation only” with regular teachers and reported that schools and teachers were generally cooperative and understanding of the needs of deaf and hard of hearing students. The students in most cases were well integrated socially and academically in their regular classes.     

Epitypification: should we epitypify?

Epitypification can solve many taxonomic problems and stabilize the understanding of species, genera, families or orders. The aim of this paper is to illustrate how to epitypify. A few examples where taxa have been epitypified are considered and the benefits and disadvantages of epitypification are discussed. We also outline some examples oftaxa which need to be epitypifled with reasons.     

Chilli anthracnose disease caused by Colletotrichum species

Anthracnose disease is one of the major economic constraints to chilli production worldwide, especially in tropical and subtropical regions. Accurate taxonomic information is necessary for effective disease control management. In the Colletotrichum patho-system, different Colletotrichum species can be associated with anthracnose of the same host. Little information is known concerning the interactions of the species associated with the chilli anthracnose although several Colletotrichum species have been reported as causal agents of chilli anthracnose disease worldwide. The ambiguous taxonomic status of Colletotrichum species has resulted in inaccurate identification which may cause practical problems in plant breeding and disease management. Although the management and control of anthracnose disease are still being extensively researched, commercial cultivars of Capsicum annuum that are resistant to the pathogens that cause chilli anthracnose have not yet been developed. This paper reviews the causal agents of chilli anthracnose, the disease cycle, conventional methods in identification of the pathogen and molecular approaches that have been used for the identification of Colletotrichum species. Pathogenetic variation and population structure of the causal agents of chilli anthracnose along with the current taxonomic status of Colletotrichum species are discussed. Future developments leading to the disease management strategies are suggested.      

Multisensory and unisensory approaches to communicating with deaf children

The history of and current controversy in education of the hearing impaired between advocates of unisensory (audition only) and multisensory (audition, vision and touch) approaches to communication for learning and socialisation for hearing-impaired children is described. Arguments from developmental and perceptual theory, information processing, early intervention pedagogy and an examination of the evidence claimed to support the superiority of unisensory approaches is presented from which the authors conclude that the superiority of multisensory approaches is well established and these should be the methods of choice in communicating with hearing-impaired children.     

Index for Volume 54 (1983)

Abstract

The purpose of this study was to develop a regression equation to predict maximal oxygen uptake (VO₂max) based on nonexercise (N-EX) data. All participants (N= 100), ages 18–65 years, successfully completed a maximal graded exercise test (GXT) to assess VO₂max (M= 39.96 mL·kg ^-1· min ^-1 , SD = 9.54). The N-EX data collected just before the maximal GXT included the participant's age; gender; body mass index (BMI); perceived functional ability (PFA) to walk, jog, or run given distances; and current physical activity (PA-R) level. Multiple linear regression generated the following N-EX prediction equation (R = .93, SEE = 3.45 mL·kg ^-1· min ^-1 , %SEE= 8.62): VO₂max (mL·kg ^-1· min ^-1 ) = 48.0730 + (6.1779 x gender; women = 0, men = 1) – (0.2463 x age) – (0.6186 x BMI) + (0.7115 x PFA) + (0.6709 x PA-R). Cross validation using PRESS (predicted residual sum of squares) statistics revealed minimal shrinkage (R _p = .91 and SEE _p = 3.63 mL·kg ^-1· min ^-1 ); thus, this model should yield acceptable accuracy when applied to an independent sample of adults (ages 18–-65 years) with a similar cardiorespiratory fitness level. Based on standardized β-weights, the PFA variable (0.41) was the most effective at predicting VO₂max followed by age (-0.34), gender (0.33), BMI (-0.27), and PA-R (0.16). This study provides a N-EX regression model that yields relatively accurate results and is a convenient way to predict VO₂max in adult men and women.     

Literature of broadcasting: Books in review

BEST TELEVISION PLAYS. Ed. by Gore Vidal. New York: Ballantine Books, Inc., 1956. 250 pp. 35c.

TELEVISION PLAYS BY PADDY GHAYEFSKY. By Paddy Chayefsky. New York: Simon and Schuster. 1955. 268 pp. $1.50 (paperback).

TOP TV SHOWS OF THE YEAR, 1954–55. Ed. by Irving Settel New York: Hastings House, 1955. 269 pp. $5.50.

TELEVISION SCRIPTS FOR STAGING AND STUDY. By Rudy Bretz and Edward Stasheff. New York: Hill and Wang, Inc., 1953. 332 pp. $4.95.

TELEVISION'S IMPACT ON AMERICAN CULTURE. By William Y. Elliott. East Lansing: Michigan State University Press 1956. 382 pp. $4.95.

MASS COMMUNICATIONS. By Erik Barnouw. New York: Rine‐hart and Company, Inc., 1957. pp. 280. $4.00.

CONSUMER RESEARCH WITH PROJECTIVE TECHNIQUES. By Dietz Leonhard. Shenandoah, Iowa: World Publishing Co., 1955. 151 pp.

ON HUMAN COMMUNICATIONS: A Review, a Survey and a Criticism. By Colin Cherry. New York: The Technology Press of Massachusetts Institute of Technology and John Wiley & Sons, Inc., 1957. 333 pp.

TELEVISION TECHNIQUES, revised edition, by Hoyland Bettinger, revised by Sol Cornberg. New York: Harper and Brothers, 1955. 236 pp. $3.75.

TV MEASUREMENT FOR THE SPONSOR. By American Research Bureau, Inc., 1956. 53 pp. (Free.)

FOUR THEORIES OF THE PRESS. By Fred S. Siebert, Theodore Peterson, and Wilbur Schramm. Urbana, Illinois: University of Illinois Press, 1956. 153 pp. $3.50.     

Selectivity,Redundancy, and Contiguity as Factors Which Influence the Difficulty of an Achievement Test

The purpose of this study was to determine whether significant differences in the quality of the written expression of third-grade children would occur under differing time conditions. Three groups of third-grade children wrote compositions on topics of their own choosing once every 2 weeks for a total of five experimental sessions. One group wrote for 20 minutes; and one for any amount of time from zero to 225. The 225-minute group rated significantly higher than the other two groups in all five trials; the 90-minute group significantly higher than the 20-minute group in all but Trial 2.