Critical Skills Training. Postdoctoral trainees are typically well trained in the technical aspects of their discipline but few receive formal training in leadership. This course will equip you with the critical leadership skills you need to succeed in a wide range of scientific career paths. Interactive Format.
Horseshoe (â, \supset in TeX) is a symbol used to represent: 1  Material conditional in propositional logic. 2  Superset in set theory.
The Ace of Spades represents the Death of the Year and the start of a new one, when the wheel turns again. The reason why it is a trump card is that Death comes for all of us in the end, and there is no escape - even for kings. The spade is also known in the Tarot as the sword - a symbol of war.