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In this important new book, the distinguished Egyptologist Jan Assmann provides a masterful overview of a crucial theme in the religious history of the West – that of 'religio duplex', or dual religion. He begins by returning to the theology of the Ancient Egyptians, who set out to present their culture as divided between the popular and the elite. By examining their beliefs, he argues, we can distinguish the two faces of ancient religions more generally: the outer face (that of the official religion) and the inner face (encompassing the mysterious nature of religious experience). Assmann explains that the Early Modern period witnessed the birth of the idea of dual religion with, on the one hand, the religion of reason and, on the other, that of revelation. This concept gained new significance in the Enlightenment when the dual structure of religion was transposed onto the individual. This meant that man now owed his allegiance not only to his native religion, but also to a universal 'religion of mankind'. In fact, argues Assmann, religion can now only hold a place in our globalized world in this way, as a religion that understands itself as one among many and has learned to see itself through the eyes of the other. This bold and wide-ranging book will be essential reading for historians, theologians and anyone interested in the nature of religion and its role in the shaping of the modern world.

Duplex Stainless Steels (DSSs) are chromium-nickel-molybdenum-iron alloys that are usually in proportions optimized for equalizing the volume fractions of austenite and ferrite. Due to their ferritic-austenitic microstructure, they possess a higher mechanical strength and a better corrosion resistance than standard austenitic steels. This type of steel is now increasing its application and market field due to its very good properties and relatively low cost. This book is a review of the most recent progress achieved in the last 10 years on microstructure, corrosion resistance and mechanical strength properties, as well as applications, due to the development of new grades. Special attention will be given to fatigue and fracture behavior and to proposed models to account for mechanical behavior. Each subject will be developed in chapters written by experts recognized around the international industrial and scientific communities. The use of duplex stainless steels has grown rapidly in the last 10 years, particularly in the oil and gas industry, chemical tankers, pulp and paper as well as the chemical industry. In all these examples, topics like welding, corrosion resistance and mechanical strength properties (mainly in the fatigue domain) are crucial. Therefore, the update of welding and corrosion properties and the introduction of topics like texture effects, fatigue and fracture strength properties, and mechanical behavior modeling give this book specific focus and character.