Three-body non-additive forces between spin-polarized alkali atoms

Three-body non-additive forces in systems of three spin-polarized alkali atoms (Li, Na, K, Rb and Cs) are investigated using high-level ab initio calculations. The non-additive forces are found to be large, especially near the equilateral equilibrium geometries. For Li, they increase the three-atom potential well depth by a factor of 4 and reduce the equilibrium interatomic distance by 0.9 A. The non-additive forces originate principally from chemical bonding arising from sp mixing effects.Comment: 4 pages, 3 figures (in 5 files

The Influence of Temporal Fit/Nonfit on Creativity in the Leader-Subordinate Context: The Moderating Role of Task Enjoyment versus Performance Concern

This study extends regulatory fit theory by exploring boundary conditions of the temporal fit/nonfit effect on subordinate creativity. We propose that fit (nonfit) between subordinates regulatory focus and the temporal distance of a leader-stipulated task enhances subordinate creativity under task-enjoyment (performance-concern) conditions. Data supported the nonfit hypothesis among promotion-focused subordinates: Subordinates who were more promotion-focused showed greater creativity after recalling a leader-stipulated, temporally near task when they concentrated on doing well rather than on enjoying the task. Prevention-focused subordinates showed no such patterns for creativity. Implications for managing employee creativity in the competitive, performance-pressured organizational and business environment are discussed

Effects of preweaning and post weaning implants on suckling, growing, and finishing steer performance

One hundred and ninety-five crossbred steers were used to compare lifetime implant strategies and study the effects of implanting during the suckling period on performance in the growing and finishing periods. There were no differences in growing period gains when both groups were implanted in the suckling period and the growing period. However, steers implanted in the suckling period but not implanted in the growing period had significantly lower gains than all other treatments including controls. Steers implanted only in the growing period had better feed efficiency in the growing period than both controls and steers implanted only in the suckling period. Steers reimplanted during the finishing period had similar finishing gains regardless of prior implant treatment, and all implanted cattle gained faster than controls in the finishing period. Steers not reimplanted during the finishing period had lower gains than those reimplanted. Implanting in the finishing period resulted in better feed efficiency. All implanted cattle that were reimplanted in the finishing period had higher lifetime gains than controls, but there was no difference between implant combinations. The only carcass characteristic changed by implanting was quality grade, which was reduced by all implant combinations with the exception of implanting only in the finishing period. Implanting during the suckling period did not reduce cattle performance during the growing and finishing periods when the steers were also implanted during these periods. This study emphasizes the importance of implanting twice in the finishing period to maximize finishing gain and final weight