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The purpose of this study was to examine the process of the use of management’s positivity and negativity sources and their mediation on pharmaceutical members’ satisfaction that, in turn, enable a health-care organization to meet its business objectives with more agility.

Data were obtained from a survey of 106 pharmaceutical members regarding their relationships with management.

The results of LISREL analysis revealed that the use of positivity variables such as reward enhanced each of referent, expert and positive conflict; in addition, referent boosted satisfaction. However, the use of negativity variables such as opportunism enhanced power, but weakened each of referent, expert and legitimate power sources. The use of coercion enhanced power too, but produced dissatisfaction. Further, the prevalence of negative conflict caused dissatisfaction.

This study also reported major contributions when it examined the effect of the mediation of the use of positivity intrinsic power sources on satisfaction. It found that referent power functioned as a full mediator by dropping the amount of the relationship between the use of reward and satisfaction to zero and as a partial mediator by dropping the amount of the relationship between the use of coercion and satisfaction. In addition, the use of referent power mediated the joint effect of both the use of coercion and reward power sources, triggering a positive effect on satisfaction. Several managerial implications were discussed.

Considering the external disturbances and dynamic uncertainties during the process of the trajectory tracking, this paper aims to address the problem of the welding robot trajectory tracking with guaranteed accuracy.

The controller consists sliding mode control, fuzzy control and low pass filter. The controller adopts low-pass filter to reduce the high frequency chattering control signal in sliding mode control. The fuzzy control model is used to simulate the external disturbance signal and the dynamic uncertainty signal, so that the controller can effectively restrain the chattering caused by the sliding mode control algorithm, realizing the track of the welding robot effectively and improving the robustness of the robot.

An innovative experiment device was adopted to realize the performance of the proposed controller. Considering the kinematic and dynamic uncertainty during the process of robot tracking, the tracking accuracy was realized within 0.3 mm.

This paper uses Lyapunov stability theory and Barbalat theorem to analyze the stability of the proposed controller.