Big data has been upgraded to our national strategy and has become a catalyst for national and local economic development. With the further promotion of big data and artificial intelligence (AI), the new business model needs to optimize and upgrade. The integration of the blockchain industry will fully implement the digital China strategy and promote the application of big data in China.This unique compendium gives a comprehensive understanding of the blockchain content through the path of technological innovation. It enables readers to fully understand the role of blockchain in promoting the digital economy.The volume will be a useful reference guide for relevant personnel in state ministries and commissions, state-owned enterprises, big data, AI, as well as teachers, researchers and students in higher education institutions.

Low back pain is a common disorder in the clinical treatment of the Department of Orthopedics. Lumbar intervertebral disc degeneration is a main reason for the chronic pain and the process is difficult to reverse. Traditional treatment methods include conservative treatment and surgical treatment. Although the clinical symptoms caused by intervertebral disc degeneration can be alleviated to a certain extent, these treatment methods do not solve the fundamental issues and they also produce corresponding complications. The rise of tissue engineering technology and its applications in different fields have brought new ideas for the treatment of intervertebral disc degeneration. This book discusses the fundamentals as well as more recent developments in stem cell therapy and tissue engineering technology and offers an alternative for treating degeneration of intervertebral discs.