The aim of this paper is to propose a mathematical model for investigating the effective factors on inter and intera organization cooperation amongst related firms in transit of Iran.This model is composed of eight stage conceptual variables such as cost, time, physical distance, route capacity, training, cooperation of related firmsin transit, marketing and rules. Therefore, a population of 70 members is studied and 58 persons helped in collecting data. The required data are collected using interviews and filling questionnaires with 89% reliability. Then, the regression model is obtained using data gathered from questionnaires and interviews with alfa Cronbach and correlation statistical tests via SPSS software. The results show statistically significant relationship between the 8 independent variables and dependent variables (related firms in transit). Meanwhile, the effectiveness of variables physical distance, route capacity and rules not verified. A comprehensive discussion is followed by the results to clarify different aspects of the study. Also, some future study points are stated.

Objective: In this article, a motor skill disorder called developmental coordination disorder (DCD), that is usually first diagnosed during childhood, is explained and discussed. In the year 1987, DCD was formally recognized as a distinct disorder in children by the American Psychiatric Association (APA). DCD is a generalized term for the children who have some degrees of impairment in the development of motor coordination and therefore have difficulties with physical skills which significantly interfere with their academic achievements and /or performing everyday activities. As they develop, other age-related tasks are also below average. Because these impairment & conditions are often associated with emotional distress, they can seriously interfere with the person’s everyday life and social relationships. Reviews indicate that most of the training procedures have only a limited effect on the development of general coordination, and that they have no effect at all on academic progress. This includes approaches based on assumed underlying deficiencies such as sensory integration deficits and kinesthetic functioning deficits, as well as the more traditional perceptual - motor training. One new approach is Cognitive Orientation to daily Occupational Performance (CO-OP), based on problem – solving strategies and guided discovery of the child and task specific strategies. The aim of this article was to inform, promote and disseminate more information about some difficulties in applying the diagnostic criteria for DCD. Also, a brief review of the researches on the intervention methods is presented.