The word "bioethics": its birth and the legacies of those who shaped it

Extensive historical sleuthing reveals that the word "bioethics" and the field of study it names experienced, in 1970/1971, a "bilocated birth" in Madison, Wisconsin, and in Washington, D.C. Van Rensselaer Potter, at the University of Wisconsin first coined the term; and André Hellegers, at Georgetown University, at the very least, latched onto the already-existing word "bioethics" and first used it in an institutional way to designate the focused area of inquiry that became an academic field of learning and a movement regarding public policy and the life sciences. A further comparison of the Potter and the Hellegers/Georgetown understandings of bioethics and the relative acceptance of the two views will appear in the March 1995 issue of this journal.     

Success,social comparison,and self-assessment: Parents' midlife evaluations of sons,daughters, and self

The literatures on sex-role socialization and social comparison theory were used to predict how parents would evaluate the life success of adult sons and daughters and how parents' assessments of themselves would be influenced by comparisons with these children. Although parents (N=215) did not report different levels of life success for 291 adult sons versus 251 adult daughters, parental well-being was more closely tied to assessments of sons' success. In addition, although parents' reported that both sons and daughters had exceeded their own life success, theparent-child comparison with daughters was the better predictor of parents' well-being. Findings are discussed in terms of parents' individual development, family processes at midlife, and cohort differences between parents and their children.     

A systems analysis of the behaviors of schooling

Summary and conclusions Thus, the existing nonsystematic system, and the various vested interests associated with it, targets groups of students rather than individuals. Prior to the advent of a science of schooling, the tutorial approach associated with the privileged or ruling classes did not seem feasible for educating the masses, simply because there was no adequate science of behavior for the individual. Even after that science showed promise for pedagogy, there was still no systems-wide science for applying what was known to groups and organizations in which the individual was pivotal. In order to determine whether behavioral conceptions of schooling work on a larger scale, we must experimentally test whether or not thoroughgoing applications are feasible to educate the masses individually. Findings from 8this research can be used to design and modify systems of schooling that are measurably effective, workable year in and year out, automatically self-correcting, and beneficial to all of the parties involved. CABAS has demonstrated how such a system can work on a small scale; other attempts may show us how to make a large scale system work. We have not yet seen what man can make of man (Skinner, 1971, p. 215).     

Computing Cohen’s kappa coefficients using SPSS MATRIX

This short paper proposes a general computing strategy to compute Kappa coefficients using the SPSS MATRIX routine. The method is based on the following rationale. If the contingency table is considered as a square matrix, then the observed proportions of agreement lie in the main diagonal’s cells, and their sum equals the trace of the matrix, whereas the proportions of agreement expected by chance are the joint product of marginals. The generalization to weighted kappa, which requires an additional square matrix of disagreement weights, both matrices having the same order, becomes possible by the use of the Hadamard product-that is, the elementwise direct product of two matrices.     

Diaphragmatic spasm: A neglected cause of dyspnoea and chest pain

The study included 17 patients, 12 women and 5 men, with a recurrent symptom complex involving chest pain and dyspnoea characterized by inability to get a full breath. Some attacks had subsided spontaneously. Others had lasted hours or days. When examined by fluoroscopy during an attack, each subject was found to have a nearly maximally contracted (flat) diaphragm. In some of them the attack was promptly interrupted by a small intravenous injection of sodium amytal. In others it could be aborted by a conscious effort at full expiration. The syndrome associated with diaphragmatic spasm is discussed in comparison with other noncardiac sources of chest pain and dyspnoea.     

Measuring and predicting the effects of alcohol consumption on contrast sensitivity for stationary and moving gratings

Contrast sensitivity was measured for 12 healthy young males while sober, after ingestion of an alcohol placebo, and after ingestion of alcohol (95% grain alcohol; mean estimated blood alcohol level = .088%). Observations were made for both stationary gratings and gratings that traveled through a circular path and required pursuit eye movements. The significant alcohol-related reduction in contrast sensitivity was 2.6 times greater for moving (.29-log-unit reduction) than for stationary gratings (.11-log-unit reduction). The loss in contrast sensitivity for the moving gratings of high spatial frequency (12 cpd) was particularly severe (.37 log unit). Estimated blood alcohol level was correlated with the loss in contrast sensitivity for moving gratings (r = .61), but not with the loss for stationary gratings. Estimated blood alcohol level was strongly correlated with the difference between the loss in contrast sensitivity to moving and stationary gratings (r = .75). These results are consistent with reports that alcohol consumption degrades the ability to make pursuit eye movements. Subjects’ perceived intoxication level was not a reliable predictor of any index of visual performance.     

Two-month-old infants’ sensitivity to allophonic differences

The present study investigated 2-month-olds’ abilities to discriminate allophonic differences that are potentially useful in segmenting fluent speech. Experiment 1 investigated infants’ sensitivity to the kind of distinction that may signal the presence or absence of a word boundary. When tested with the high-amplitude sucking procedure, infants discriminated pairs of items, such as “nitrate” versus “night rate” and “nikrate” versus “nike rate.” By greatly reducing the potential contribution of prosodic differences to these contrasts, Experiment 2 evaluated whether the allophonic differences for /t/ and /r/ were sufficient for infants to distinguish the “nitrate” versus “night rate” pair. Infants distinguished “nitrate” from a cross-spliced version of “night rate,” which differed only in the allophones for /t/ and /r/ that it included. Thus, infants appear to possess one of the prerequisite capacities (i.e., the ability to discriminate allophonic distinctions) necessary to use allophonic information in segmenting fluent speech.