The abstract is a summary of the study. It should accurately reflect what actually happened in the study. Its purpose is to give you an overview of the research and let you decide if you want to read the full article. The abstract includes a sentence or two on each of the elements of the article. These include the introduction, study design, population studied, interventions and comparisons, ou...

PREFACE N o period in the history of organic chemistry has been as dynamic and productive of research accomplishment as the twelve years between the completion of the first and present editions of this textbook. New reagents, new reactions, and extraordinary syntheses have been manifold. New techniques and new instruments for analysis and determination of structures, improved methods for theore...

operation is true of a retrieved state, the representation state must satisfy the pre-condition of the representation operation. Theorem 8.6 For the first example in the preceding section, the sequent form of the domain obligation 8.4: ws ∈ Dicta, w ∈Word ` pre-CHECKWORD(w , retr -Dict(ws)) ⇒ pre-CHECKWORDa(w ,ws) is vacuously true because the operation on the representation is total. Theorem 8...

introduction: one of the important evaluative indexes of language development is word finding ability. the application of formal assessment tools, such as twf-2, is the most common way of assessing this ability in western countries. there is not any formal assessment tool for assessment of this ability in iran. therefore this study aimed to determine the validity and reliability of persian vers...