In universities and colleges in Great Britain, the Unites States, Canada, Australia, New Zealand and Singapore, which attract the most number of international students, the primary language of instruction is English. Most of the top business schools, medical centers and advanced-study institutes are located in North America and Great Britain, and English is the language used in every activity at these institutions of higher learning. Most peer-to-peer journals and technical periodicals that give international acclaim to scientists, engineers, technologists, and technocrats are printed in English.