Sci-Hub website. Get free access to academic journals. Download research papers for free from ScienceDirect, IEEE, Wiley, Springer, Nature and others Sci-Hub has the largest ( 88 million documents) database of full-text scientific papers, available for free. Approximately 80% of the collection are articles from scientific journals, most of them dedicated to the subject of medicine. This disambiguation page lists articles associated with the title SCI. If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article. The goal of Sci-Hub is to provide free and unrestricted access to all scientific knowledge ever published in journal or book form. Today the circulation of knowledge in science is restricted by high prices. Sensitive compartmented information (SCI) is a type of United States classified information concerning or derived from sensitive intelligence sources, methods, or analytical processes. Sci-Hub is helping millions of students and researchers, medical professionals, journalists and curious people in all countries to unlock access to knowledge. The mission of Sci-Hub is to fight every obstacle that prevents open access to knowledge: be it legal, technical or otherwise. ScienceDirect is the world's leading source for scientific, technical, and medical research. Explore journals, books and articles. Sci-Hub has the largest ( 88 million documents) database of full-text scientific papers, available for free. Approximately 80% of the collection are articles from scientific journals, most of them dedicated to the subject of medicine. Since 1962, SCI has been serving families during their most difficult, personal and challenging times. Today, we are the company that more than 600,000 families turn to each year for compassionate and professional care. Safari Club International (SCI) is the leader in defending the freedom to hunt and promoting sustainable-use wildlife conservation worldwide.