نتایج جستجو برای: descriptive study
تعداد نتایج: 3995020 فیلتر نتایج به سال:
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acute injuries of the spine and spinal cord are among the most causes of severe disability and death after trauma. data about spine fracture with or without cord damage are different. the aim of this study was to determine epidemiology and demographics of spinal injury in main trauma center, guilan, an iranian province. the present study was a descriptive study of all cases of traumatic spine i...
We continue with the task of obtaining a unifying view of process semantics by considering in this case the logical characterization of the semantics. We start by considering the classic linear timebranching time spectrum developed by R.J. van Glabbeek. He provided a logical characterization of most of the semantics in his spectrum but, without following a unique pattern. In this paper, we pres...
This paper studies the descriptional complexity of multi-parallel grammars with respect to the number of nonterminals and selectors, and the length of these selectors. As a result, it proves that every recursively enumerable language is generated by a multi-parallel grammar with no more than seven nonterminals and four selectors of length five.
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