Tianjin is one of the top 25 cities in the world by scientific research outputs as tracked by the Nature Index,[16] and home to multiple notable institutes of higher education in Northern China, including Tianjin University, Nankai University, Tianjin University of Technology, Tianjin Medical University, Tianjin Polytechnic University, Tianjin University of Science & Technology, Hebei University of Technology and Tianjin Normal University.[17][18]