BACKGROUND The hemoglobin threshold for transfusion of red cells in patients with acute gastrointestinal bleeding is controversial. We compared the efficacy and safety of a restrictive transfusion strategy with those of a liberal transfusion strategy. METHODS We enrolled 921 patients with severe acute upper gastrointestinal bleeding and randomly assigned 461 of them to a restrictive strategy ...

Article history: Received 7 August 2014 Received in revised form 23 February 2015 Accepted 17 March 2015 Available online 11 April 2015 The relationship between cognitive ability and stated political preferences in the United States is examined with data from the General Social Survey, which includes a brief vocabulary test (Wordsum) as a measure of verbal ability. Since the 1970s, liberal and ...

Despite the fact that democracy promotion is a major part of liberal foreign policies, the discipline of International Relations has not paid much systematic attention to it. Conversely, the study of democracy promotion is dominated by comparative politics and pays hardly any attention to the international system. This mutual neglect signifies a core weakness in the theory and practice of democ...