In particular, the paper addresses Iceland during the medieval period (with a secondary, comparative focus on Norse Greenland) and discusses episodes where environmental and climatic changes have appeared to cross key thresholds for agricultural productivity.
In the final section, we illustrate how these considerations have affected the selection of variables in national election studies and discuss prospects for a greater comparative focus in the future.
For biological questions with a comparative focus Osprey is advisable.
Thirdly, the comparative focus provides an overview of potential variations within a country like Cameroon.
Similarly, the 10 most recent issues of International Journal of Migration, Health & Social Care dating back from volume 6(1) published in 2010, included just four papers with an international comparative focus out of 43 original articles.
Many comparative philosophers also do strict exegeses no less than comparative ones, focusing on simply explicating, against a philosophical background, the dominant views of a person, "school", text or concept.
With the exception of one comparative study focusing on Osaka City, Japan and London [ 27], no published documentary evidence was found comparing London's TB service models and infrastructure with those of similar urban contexts.
A series of comparative experiments focusing on the combustion oscillation issue has been carried out in the present work.
However, multinational comparative study focusing on a single waste management method practiced in different capacities, particularly for the composting method, is rare.
Future work should further develop the links (if any) among systems, through comparative analyses focusing on large-scale climate patterns vs. local (e.g., eutrophication) mechanisms, involving multiple basins and ecosystems.
