Computation of high frequency solutions to wave equations is important in many applications, and notoriously difficult in resolving wave oscillations. Gaussian beams are asymptotically valid high frequency solutions concentrated on a single curve through the physical domain, and superposition of Gaussian beams provides a powerful tool to generate more general high frequency solutions to PDEs. A...

language textbooks are conventionally expected to develop the four language macro-skills, including listening, reading, writing and speaking in language learners. however, mastering the reading skill is of particular importance, since it enhances the comprehension of specialized texts in students. the objective of this research is to investigate the scientific aspect of persian textbooks in tea...

disclosure of classified public interest information has become one of the major legal challenges in recent years. in the past decades the conflict between the right of people to receive information and principle of sovereignty within the framework of traditional media (direct broadcast satellite) resolved in favor of  principle of free flow of information and the said conflict was replaced by ...

one of the principles of the responsibilities is that responsibility is personal. the principle of vezr denotes that responsibility is personal. but sometimes there is a vicarious liability. in french law until 1991 the vicarious liability was un exception and the article of 1384 of civil code of french has been interpreted limitedly. from 1991the exception has been changed into the principle. ...

the cooperation theory of the parties and the judge in the settlement of disputes is a new issue in the civil procedure that has been presented by one researcher in recent years. the cooperation theory is defined to mean law enforcement. in other wllmords, the parties and the judge participate with each other to settle a dispute. although in some of the new rules this theory can be seen sporadi...