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An analysis of letters published by top 10 publishing countries in journals indexed by Science Citation Index Expanded (SCIE) during 1987-89, 1997-99 and 2007-09 indicates that the letters published by developed countries including China have declined as proportion of their total output. The number of letters published by Indian scientists has remained constant during the three blocks. These letters were scattered in a large number of journals published from advanced countries of the world and India. The letters came from more than 1000 institutions located in different parts of the country. The highest number of letters was published in the discipline of medicine and the letters published in the field of chemistry had the highest Relative Citation Impact (RCI). [ABSTRACT FROM AUTHOR]

An analysis of 11067 papers published by Indian scientists and indexed by Science Citation Index (SCI) CD-ROM for the year 1997 indicates that academic institutions (universities and colleges) are the major contributors to the scientific publications output. Major contribution came from 29 institutions, which contributed about 45% of the total Indian scientific output. Based on the values of different impact indicators (normalized impact per paper, publication effective index and relative quality index) TIFR outperforms all other institutions on different impact indicators. Fifty seven percent of the output is concentrated in physical sciences, chemical and medical sciences. Indian scientists widely publish their findings in journals published from the scientifically advanced countries of the West. Based on these values of the Normalized Impact Factor (NIF), it is observed that about two-third of the total papers have appeared in low and medium NIF journals. [ABSTRACT FROM AUTHOR]