aims: adolescence is one the most precarious periods of life, concerning the drug abuse. the social cost of the drug abuse and injury among adolescents is extraordinary and requires intervention. the theory of planned behavior (tpb) is perhaps the most influential theory for prediction of social and health behaviors including drug abuse. this study aimed at designing and implementing a curricul...

the purpose of this study was to investigate the problems of methodologicalresearch program in the history of political thought appearing valuationmethodologies. the claim is that the principles and methodology of the researchprogram evaluate the formation, expansion, and development of methodologies inthe area of knowledge. in contrast, this article argues that the research program isnot suffi...

memory politics as a field is an outcome of representation crisis in social sciences. but this field has its own weaknesses that prevent presenting a coherent research program. eliminating theory and conceptual defects of the field and increasing its objects are the most strategies to improve it to a coherent research program. but how someone can eliminate its current conceptual defects? in thi...

logical form or covert syntax is a syntactic level introduced in recent generative approaches. using the ideas of first-order predicate logic, it interprets the strings whose elements cannot move in s–structure, because an element moves if it does not acquire its necessary scope. but unlike the predicate logic, logical form is based on syntactic principles and rules. therefore, logical form is ...

in this paper, the structural properties of the b30n20 molecule have been investigated at b3lyp/6-31g (d) level of theory. the optimized structure and electronic properties calculations for the studiedmolecule have been performed using gaussian 03 program. a mathematical equation of third degreewas exploited for the correlation and exchange energy with the number of primitives. the naturalbondi...