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spec: of Cordova , and accompany him to the council , which both sovereigns had now agreed to assemble on the frontier line of their empires , at the Moesian city of Sardica . Even people beginning a research career that is specifically devoted to satellite remote sensing can be slowed down initially because they lack some basic skills . We have questions , we have problems . The rivers in northern Tartary all lose themselves in the sand . In the absence of satellites specifically devoted to astronomy , sounding rockets made the major discovery of discrete X-ray sources outside the solar system . Our Society became international at its founding in 1977 when a number of foreign scholars chose to join a North American Society specifically devoted to lexicography .