A theoretical study is presented of the geometry of a Tsai-type cluster consisting of Zn and Sc. This cluster is a building block of both Zn?TM?Sc (TM?=?Mn, Fe, Co, Ni) quasicrystals and their approximants. First-principles structural optimizations are carried out and the stable structure of this cluster examined. Our results show that four Zn atoms inside the Tsai-type cluster form a distorted tetrahedron and the first shell of the cluster is also distorted.
This study explored the relationship between professional quality of life and emotion work and the major stress factors related to abortion care in Japanese obstetric and gynecological nurses and midwives. Between October 2011 and January 2012, questionnaires that included questions concerning eight stress factors, the Professional Quality of Life Scale, and the Japanese version of the Frankfurt Emotional Work Scale, were answered by 255 nurses and midwives working in abortion and childbirth services. Professional Quality of Life scores (compassion fatigue, compassion (...) satisfaction, burnout) were significantly associated with stress factors and emotion work. Multiple regression analysis revealed that of all the evaluated variables, the Japanese version of the Frankfurt Emotional Work Scale score for negative emotions display was the most significant positive predictor of compassion fatigue and burnout. The stress factors “thinking that the aborted fetus deserved to live” and “difficulty in controlling emotions during abortion care” were associated with compassion fatigue. These findings indicate that providing abortion services is a highly distressing experience for nurses and midwives. (shrink)