Light Propagation through Photonic Crystal Fibers (PCF) is the main focus in this book. Nowadays Photonic Crystal Fibers are supposed to be new advancement in the field of optical communication....

Dengue is the most prevalent mosquito-borne viral infection worldwide. Over half of the world’s population live in areas at risk of dengue infection. The disease is transmitted principally by Aedes spp. mosquitoes....

The design of bridges is a unique art as they are expected to carry moving loads compared to the statically loaded structures. Mere training in code procedures and special design skills are inadequate for successful professional practice....

Earthquakes are a common phenomenon thorough out the world and they cause large damages all across the globe each year. High-rise buildings are especially vulnerable when subjected to earthquake forces....

Xylanases (endo-1, 4-?-D-xylan xylanohydrolse; EC 3.2.1.8) is a group of enzymes that catalyze the hydrolysis of xylan, the major constituent of hemicellulose, which is second to cellulose in abundance in plant cell wall....

One hundred cases of various types of angina pectoris in two hospitals of Narowal during September 2008 to January 2009 had been analyzed to determine the relative occurrence and incidence of angina pectoris, and effects of various risk factors....