Sarah, The short answer is that, yes, you can substitute butter for shortening in cookies. It will, however, change the texture and appearance of the end product. Because shortening is 100% fat and butter is roughly 85% fat and 15% water, cookies with butter in them tend to spread more during baking.
Usage: Yang is a popular first name. It is more often used as a boy (male) name. People having the name Yang are in general originating from China, France, South Korea, United States of America.
There are about a handful of major Tai Chi styles and Yang style is the most widely practiced and followed in the world. This form was conceptualized by The Great Master Yang Lu Chan about 170 years ago and has been sincerely passed down to posterity. Master Yang Jun is the 6th Generation direct descendant of the Yang Style Tai Chi founder, Yang Lu Chan. In addition, Master Yang Jun is responsible for International Yang Family Tai Chi Chuan Association and travels internationally to promote Yang Tai Chi and to certify instructors in various schools around the world. In July 2009, Master Yang Jun was officially named the Fifth Lineage Holder of the Traditional Yang Style Tai Chi Chuan.