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 Pentagram is a symbol of a star encased in a circle. Always with 5 points (one pointing upward), each has its own meaning. The upward point of the star is representative of the spirit.The other four points all represent an element; earth, air, fire, and water.All these things contibutite to life and are a part of each of us. To wear a pentagram necklace or other form of jewelry, is to say you feel the connection with the elements and respect the earth.he pentagram may be shown as an interlaced line symbolic of the web-weaving power of magick. The descending spirit-earth line may pass under (male) or over (female) the water-air line to give two slightly differing forms.