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Quantity and quality are Aristotelian categories. Ever since Galileo, the defining feature of Science is the accurate measure of quantity, e.g., time, length and mass, to begin with. Length and mass are size dependent. Quality remained an elusive category as it is a size-independent feature. It was Archimedes who first brought a revolution in physics by defining density as a size-independent attribute...
Journals have been ranked on the basis of impact factors for a long time. This is a quality indicator, and often favours review journals with few articles. Integrated impact indicators try to factor in size (quantity) as well, and are correlated with total number of citations. The total number of papers in a portfolio can be considered a zeroth order performance indicator and the total number of citations...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.