Essays: RELIGIOUS MEDICAL ETHICS: A Study of the Rulings of Rabbi Waldenberg

This article seeks to examine how religious ideas that are not the focus of a particular halakhic question become the crux of the ruling, thereby molding it and dictating its bias. We will attempt to demonstrate this through a study of Jewish medical ethics, based on some of the rulings of one of the greatest halakhic decisors of the previous generation: Rabbi Eliezer Yehuda Waldenberg (1915–2006). Rabbi Waldenberg molds his rulings on the basis of a religious principle asserting that the legitimacy of any medical procedure is qualified and limited. Rabbi Waldenberg rejects certain accepted medical practices, including plastic surgery, in vitro fertilization, and organ transplants. Even if these procedures are regarded by other halakhic decisors as being legitimate, for Rabbi Waldenberg they are ethically and religiously improper, and therefore they are halakhically forbidden.     

Synchronizing movements with the metronome: nonlinear error correction and unstable periodic orbits.

The control of human hand movements is investigated in a simple synchronization task. We propose and analyze a stochastic model based on nonlinear error correction; a mechanism which implies the existence of unstable periodic orbits. This prediction is tested in an experiment with human subjects. We find that our experimental data are in good agreement with numerical simulations of our theoretical model. These results suggest that feedback control of the human motor systems shows nonlinear behavior.     

The Assessment of Optimistic Self-beliefs: Comparison of the German, Spanish, and Chinese Versions of the General Self-efficacy Scale

L'auto-efficacité générale est mesurée grâce à une courte échelle composée de dix items. Son usage est très répandu et elle a été adaptée à plusieurs cultures. Cet article compare des versions qui ont été proposées à des étudiants: 430 Allemands, 952 Costariciens et 293 Chinois. lies validités internes sont respectivement de.84,.81 et.91. L'unidimensionnalité de l'échelle est réapparue dans tous les échantillons. L'équivalence items-modèle interlinguistique ne fut que modérément approuvé par des analyses factorielles de confirmation. On a trouvé des différences au niveau des moyennes des scores totaux entre les langues. De plus, une intéraction entre sexe et langue s'est manifestée. Des corrélations avec la dépression, l'anxiété' et l'optimisme ont fourni des éléments complémentaires en faveur de la validité de construction.
General self-efficacy is measured by a widely used parsimonious ten-item scale that was developed for use in several cultures. The present paper compares the verions that were examined in samples of 430 German, 959 Costa Rican, and 293 Chinese university students. The internal consistencies were.84,.81, and.91, respectively. The unidimensional nature of the scale was replicated in all samples. Multilingual item-pattern equivalence was only moderately supported by confirmatory factor analyses. Mean differences of sum scores between languages were found. Moreover, an interaction between gender and language emerged. Correlations with depression, anxiety, and optimism provided some further evidence for construct validity.