If one takes a scientific and ‘positivist’ view (Popper 1959), then experimentation is part of a ‘hypothetico-deductive’ process. A hypothesis is formulated and then tested to see if it can be ‘falsified’. If falsified then that hypothesis must be discarded and replaced with a new, hopefully better one, which will, itself, then be tested. If a hypothesis resists falsification, and is supported ...

Archaeology can provide two bodies of information relevant to the understanding of the evolution of human cognition--the timing of developments, and the evolutionary context of these developments. The challenge is methodological. Archaeology must document attributes that have direct implications for underlying cognitive mechanisms. One example of such a cognitive archaeology is found in spatial...

To visualize the structure of Iranian chemistry scientific publications in SciSearch, 43 Iranian and International chemists were identified. They were the highly cited scientists in 7682 Iranian chemistry publications (defined as an article with at least one Iranian author address) indexed in Science Citation Index during the period from 1990 to 2006. Co-citation data for these authors from the...