The tragic events of 9/11 and the concerns about the potential for a terrorist or hostile state attack with weapons of mass destruction have led to an increased emphasis on risk analysis for homeland security. Uncertain hazards (natural and engineering) have been successfully analyzed using probabilistic risk analysis (PRA). Unlike uncertain hazards, terrorists and hostile states are intelligen...

NATO’s strategic transformation will have an important impact on the Alliance’s approach to the Mediterranean and on the future of its Mediterranean Initiative. During the Cold War, NATO’s strategy, doctrine, and military capabilities were oriented toward deterring a military threat from the Soviet Union. Today, the threats and challenges are more diverse—and more indirect. They range from ethn...

Mycobacterium leprae are killed by myeloperoxidase (or eosinophil peroxidase), H2O2, and a halide, thus suggesting a mechanism for their destruction by peroxidase-containing phagocytes.

Exit from mitosis requires Cdk1 inactivation, with the most prominent mechanism of Cdk1 inactivation being proteolysis of mitotic cyclins [1]. In higher eukaryotes this involves sequential destruction of A- and B-type cyclins. CycA is destroyed first, and CycA/Cdk1 inactivation is required for the metaphase-to-anaphase transition [2]. The degradation of CycA is delayed in response to DNA damage...

We use Second World War destruction in London as a natural experiment to provide evidence on neighborhood e ects. We use a newly-collected and remarkable dataset on thousands of locations within London that records wartime destruction and the economic and social characteristics of locations from the latenineteenth to late-twentieth centuries. We combine these data with a quantitative model of t...