Distal protection devices appear seductively simple, elegant, and beneficial to both physicians and patients. Why would you not want to use something called “distal protection?” To not use “distal protection” during carotid angioplasty and stent placement (CAS) sounds irresponsible, like not practicing “safe sex.” In a simple world, distal protection devices would do exactly what their name imp...

The dominant (though contested) wisdom among international relations scholars is that military officers tend to be more cautious than their civilian counterparts about initiating the use of force. Sobered by the experience of combat, the theory holds, soldiers are hesitant to recommend military action except under the most favorable of circumstances. It might be the case, however, that military...

abstractâ iran country due to laying in the desert belt on the northern hemisphere, are dry and desert climate of many parts of it predominate. due to the same location in the atmospheric loss of human life and animal life and it has an important role. and according to the moisture sources in the country and located outside of the atmospheric loss from year to year fluctuations have other roles...