this solution has a flaw which in certain circumstances allows the malicious construction of apparently authentic messages. Finally note that it is not the intention of the author to criticise what is after all only an RFC,l but rather to ensure that possible solutions to multi-destination secure message authentication problems are analysed with care. There are many lessons to be learnt from th...

A two stage approach to travel destination choice was developed based on the construct of an evoked set. The two stages were evolution of an evoked set from the awareness set; and destination selection from the evoked set. It was hypothesized at both stages that travel destination choice depends upon attitude toward each alternative. Attitude was operationalized as the difference between percei...

what has turned “nature” into a landscape and a tourism destination has transformed over time and comprised various aspects in different definitions. landscape definitions have considered nature as a tourism destination in multiple points of view. four main viewpoints are debatable in a time period from the first landscape definition till today. the first definition discusses the pictorial and ...