the present research focuses on the changes of urmia lake level. for this purpose, two timescales have been considered. the trend changes of temperature, precipitation rate and quantitative values of climate type for the observational period from 1968 to 2011 (past scale) and from 2011 to 2100 (future scale) have been analyzed. general circulation model (gcm) is considered for simulating the va...

The pharmaceutical industry is a regulatory-based high-tech that requires long-term R&D investments from product development to market entry. This study investigates how firms in Korea have grown their production size, changed morphological structure, and identified the internal factors for sustainable growth recent decades. First, with time series data of collected based on records finishe...

health statistics demonstrate remarkable progresses in the field of primary health care and academic education in iran within recent decades. iran has also had obvious progresses in the field of research and the international publication rate of iranian scientists has been quadrupled over the past decade. progresses in biomedical researches have been associated with considerable activities in b...