Main and interaction effects of metallic toxins on classroom behavior

This study investigated the relationships of metal levels and metal combinations to children's classroom behavior. Hair-metal concentrations of lead, arsenic, mercury, cadmium, and aluminum were determined in 80 randomly selected elementary-age children, who were also rated by their classroom teacher on the Walker Problem Behavior Identification Checklist (WPBIC). Parents were interviewed to control for confounding variables that may have affected behavioral development. Regression analysis indicated that the set of metals was significantly related to increased scores on four of the five WPBIC subscales and on the total scale, with lead being a major contributor to four of the six dependent measures. Metal combinations were significantly related to increased scores on the WPBIC subscales measuring acting-out, disturbed peer relations, and immaturity, and on the total scale. A continuing reexamination of metal poisoning concentrations is needed because metal levels and metal combinations previously thought harmless may be associated with nonadaptive classroom behavior.     

BOHM AND WHITEHEAD ON WHOLENESS, FREEDOM, CAUSALITY, AND TIME

Abstract. David Bohm's developing postmodern thought (combining precision and wholeness) is seen to contain two tendencies. One is a vision of "underlying wholeness," in which all causation is vertical, and the implicate-explicate relation is ubiquitous. This provides a possible solution to certain problems, but creates many others involving freedom, causation, and time. Second, many of Bohm's statements suggest that his deepest intuitions could be formulated without those problems in terms of the distinctions developed in Alfred North Whitehead's philosophy of "prehensive wholeness," in which the ubiquity of creativity would require a more restricted use of the implicate-explicate relation.     

Generalized multivariate lens model analysis for complex human inference tasks

A generalized multivariate lens model is presented which will permit the analysis of complex human inference tasks. Such tasks, occurring in their natural ecology, may involve judgments or decisions on multiple criteria and/ or where the influence of theoretically interesting partitions or augmentations of cue profiles needs to be systematically delineated. The generalized model incorporates the standard, hierarchical, and fully partialed lens models, the initial elaborations of which were made by N. J. Castellan (1972, Organizational Behavior and Human Performance, 8, 242–261) and T. R. Stewart (1976, Psychometrika, 41, 101–120). Both multivariate and univariate lens model equations are presented within a common notational system. An example which demonstrates some aspects of the generalized model is discussed in detail. Other potential applications for the model are outlined.     

Contextualizing the History of Yoga in Geoffrey Samuel’s The Origins of Yoga and Tantra: A Review Symposium

International Journal of Hindu Studies -