English Abstract: This book analyzes major changes in the organization of scientific activity since the great flu pandemic of 1918 up to the covid-19 pandemic of 2020, highlighting such processes as the passage from individual researchers to large research teams, the rise of interdisciplinary...

This paper presents some results of extensive fieldwork in Afghanistan during the 2001-02 and 2002-03 agricultural years, concerning techniques used for growing wheat, the main staple crop of the country, and provides estimates of technical coefficients, costs of production and margins for each...