Classroom Teacher Efficacy Toward Implementation of Physical Activity in the D-SHINES Intervention.

Background: Given levels of sedentary behavior among youth, teachers have been called upon to increase physical activity (PA) by implementing classroom PA breaks. School-based interventions enacted in classroom settings have shown promise in increasing youth PA. Yet little is known about how teacher efficacy toward implementing classroom PA breaks may influence intervention effects.

HPA-Axis Activation as a Key Moderator of Childhood Trauma Exposure and Adolescent Mental Health.

Individual differences in a child's sensitivity to stress may influence whether youth exposed to trauma develop symptoms of psychopathology. We examined the interaction between HPA-axis reactivity to an acute stressor and exposure to different types of childhood trauma as predictors of mental health symptoms in a sample of youth. Youth (n = 121, ages 9-16; 47% female) completed a standardized stress task, including 5 post-stress salivary cortisol samples.

Knowledge as an interactional tool in the management of client empowerment.

Objective: To examine the way speaker and recipient knowledge is managed in interaction by a call taker at a mental-health information line, to achieve the institutional goals of information provision and client empowerment.

Methods: This study utilizes conversation analysis in the analysis of a single call to the line.

Results: Analysis demonstrates the ways in which a call taker produces turns-at-talk that construct a caller as knowing what help they wanted prior to that moment in the interaction, and that invoke 'common' knowledge of sources of such help.

IS THERE AN IMMUNOLOGICAL RELATIONSHIP BETWEEN HORSE SERUM AND HORSE DANDER?

Evidence has been submitted of the existence of a common antigenic substance in horse dander and horse serum. This evidence has been derived from three lines of study: (a) Cross-precipitation tests involving (1) the titration of antisera against horse serum with saline extract of horse dander and (2) titration of antisera against horse dander with normal horse serum. (b) Cross-anaphylactic tests by the uterine strip method of Dale.