Trust management is an approach to access control in distributed systems where access decisions are based on policy statements issued by multiple principals and stored in a distributed manner. In trust management, the policy statements of a principal can refer to other principals’ statements; thus, the process of evaluating an access request (i.e., a goal) consists of finding a “chain” of polic...

The objectives of this study were (a) to examine the writing performance of L2 learners on the level-specific tasks based on Common European Framework of Reference (CEFR) and (b) to study the likely difference between students' self-assessed level of writing and those reported by raters. The study was conducted with 138 Iranian students at BA and MA levels in Alborz Institute of Higher Educatio...

Trust management is an approach to access control in distributed systems where access decisions are based on policy statements issued by multiple principals and stored in a distributed manner. In trust management, the policy statements of a principal can refer to other principals’ statements; thus, the process of evaluating an access request (i.e., a goal) consists of finding a “chain” of polic...

When trying to understand certain behaviors of a given program, a programmer’s job can be facilitated by the use of a slicing tool, which helps focusing attention on the relevant subprogram. After, or even instead of reading a selected program slice, a programmer might be interested in studying its complement, i.e. the rest of the program. But what is that complement? Simply taking all statemen...

In this paper we present an approach to the static evaluation of the parallelism of DO-loops in an automatic parallelizing environment. The evaluation is performed from the dependence graph with a set of dependence relations between statements of the loop. The presence of control dependences due to conditional statements is also considered, evaluating in this case bounds of the loop parallelism...

Distinguishing between statements and questions is an important ability for language learners. In English and many other languages, questions generally involve syntactic structures and word order patterns that are different from statements. For example, in English, questions often begin with whwords (e.g. who, what, where, etc.) and auxiliary verbs switch positions with subjects (compare I see ...