The emotional labour of the aspirant leader: traversing school politics

The emotions of the aspirant leader are underexplored. In this chapter, we detail how aspirants experience the transition from teacher to leader and report on the kinds of emotional labour associated with the transition. This was examined during events of high emotional arousal for 130 school aspirants: when they felt professionally wounded, either by colleagues, leaders, parents or students. During a time of wounding, emotional work and emotional labour hinged on the dissonance between 'display rules' of the school and what aspirants' actually felt. Exploring the wounding stories revealed common display rules, which were often broken. Breaking these rules always had consequences and emotional correlates. The most prevalent form of emotional labour was surface acting. The.final discovery was the resilience of the aspirants as they recovered. Invariably, aspirants progressed through an emotion cycle of Regrouping, Recovery and Resolution. The quality of collegial relationships was the key to resolving the woundings.

The influence of surface forces on thin film drainage between a fluid drop and a flat solid

An experiment is described in which a mica surface is driven towards a mercury drop immersed in aqueous electrolyte. Under appropriate conditions, hydrodynamic pressure in the aqueous film creates a classical dimple in the mercury drop. The use of optical interferometry and video recording to monitor the shape of the drop and the thickness of the aqueous film with sub-nanometre resolution yields a high density of precise data showing the formation and evolution of the dimple as the film drains. Variation of electrical potential applied to the mercury phase allows control of the surface forces acting between the drop and the mica surface, so that the effect of surface forces on the film drainage process is highlighted. It is found that the film thickness at the centre of the dimple and the lateral extent of the dimple are not significantly affected by surface forces. On the other hand, the minimum film thickness at the edge of the dimple is sensitive even to weak surface forces. Since this minimum film thickness is a major determinant of the film drainage rate, it is shown that surface forces have an important effect on the overall drainage process.

Surface forces and their action in ceramic materials

A descriptive account is given of the surface forces acting between two solids. Different contributions to the force are outlined, with particular attention paid to the underlying mechanisms, and how they are affected by the nature of the medium between the surfaces. This is followed by a discussion of the areas of ceramic science and engineering in which surface forces play a role.

Measuring surface forces to explore surface chemistry : mica, sapphire and silica

In this paper measurements of the forces acting between two solid surfaces separated by a thin liquid film are discussed. By investigating these forces in a range of different liquids and solutions, it is possible to acquire an understanding of the surface properties of the solid material. The surface of mica has been studied extensively in this way, and the results obtained are reviewed to illustrate how the surface force measurements can give surface chemical information. Recent measurements on two other materials, sapphire and silica, which are of greater practical interest are also discussed.