Abstract State Machines (asms) offer a formalism for describing state transitions over relational structures. This makes them promising for modeling system features such as access control, especially in an environment where the policy’s outcome depends on the evolving state of the system. The current notions of modularity for asms, however, provide insufficiently strong guarantees of consistenc...

with considering of acceleration of changes, competitive environment and uncertainty in today world make knowledge as the most strategic resource for maintain and reinforcement of competitive advantage and effective management of knowledge is the most serious challenge of organizations. knowledge management is important to achieve competitive advantage. knowledge management transforms latent pr...

the current study aimed to examine the role of state-trait anxiety and resiliency in test anxiety. the research was conducted on a sample of 153 high students who completed questionnaire measures of state-trait anxiety (stai-t), trait resilience (cd-risc) and test anxiety (ta).  pearson correlation and regression analyze were used to data analyze. consistent with the assumption, results indicat...

compared to western countries, pancreatic cancer has a relatively low incidence in iran. it is rarely diagnosed before the fifth decade in iran and most of the patients are older than 60 at the time of diagnosis like to the western countries, where pancreatic cancer is a disease of advanced age. the incidence of the disease in some young patients suggests a possible role of genetic defects, whi...

background: chemical exposure is a major health problem globally. poison control centers (pccs) play a leading role both in developed and developing countries in the prevention and control of poisonous chemical exposures. in this study, we aimed to assess the current state of pccs in pakistan and highlight capacity building needs in these centers. methods: a cross-sectional survey of the two re...