Breaking the cycle of abusive supervision: How disidentification and moral identity help the trickle-down change course.

Studies show that abusive leader behaviors "trickle down" to lower organizational levels, but this research ignores that many abused supervisors do not perpetuate abuse by harming their own subordinates. Drawing on social-cognitive theory and related research, we suggest abused supervisors might defy rather than emulate their managers' abusive behavior. Specifically, we predicted that some abused supervisors-namely, those with strong moral identities-might in effect "change course" by engaging in less abuse or demonstrating ethical leadership with their subordinates to the extent they disidentify with their abusive managers. Across 2 experiments (n = 288 and 462 working adults, respectively) and a field study (n = 500 employees and their supervisors), we show that relations between manager abuse and supervisors' abusive and ethical behaviors were carried by supervisors' disidentification, and that the direct and indirect effects of manager abuse were stronger for supervisors with comparatively higher moral identity levels. We discuss our findings' implications and avenues for future research. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

Environmental chamber for in situ dynamic control of temperature and relative humidity during x-ray scattering.

We have designed, constructed, and evaluated an environmental chamber that has in situ dynamic control of temperature (25 to 90 °C) and relative humidity (0% to 95%). The compact specimen chamber is designed for x-ray scattering in transmission with an escape angle of 2θ = ±30°. The specimen chamber is compatible with a completely evacuated system such as the Rigaku PSAXS system, in which the specimen chamber is placed inside a larger evacuated chamber (flight path). It is also compatible with x-ray systems consisting of evacuated flight tubes separated by small air gaps for sample placement. When attached to a linear motor (vertical displacement), the environmental chamber can access multiple sample positions. The temperature and relative humidity inside the specimen chamber are controlled by passing a mixture of dry and saturated gas through the chamber and by heating the chamber walls. Alternatively, the chamber can be used to control the gaseous environment without humidity. To illustrate the value of this apparatus, we have probed morphology transformations in Nafion(®) membranes and a polymerized ionic liquid as a function of relative humidity in nitrogen.