Roxana Kreimer

This textbook combines pulmonary and cardiac physiology and pathophysiology with clinical aspects of the disease. The textbook addresses the following topics: structure and function of the normal pulmonary vasculature; disregulated cellular pathways seen in experimental and human pulmonary hypertension; clinical aspects of pulmonary hypertension in general; presentation of several specific forms of pulmonary hypertension, and management of pulmonary hypertension in special circumstances.

What is at stake for how the Internet continues to evolve is the preservation of its integrity as a single network. In practice, its governance is neither centralised nor unitary; it is piecemeal and fragmented, with authoritative decision-making coming from different sources simultaneously: governments, businesses, international organisations, technical and academic experts, and civil society.