This paper deals with the visualization of the people in relation to their environment. As a study, it deals with both cultural and social change. The migrants and their children were the subject of these observations, which preceded the research and choice of sample for the case study. The observations listed below have been obtained from Palestinian settlements, Jabal El-Hussein camp, as far as the first generation of migrants and their children\'s are concerned. The comparison between the two generations gives a clear idea of the cultural systems that organized the camp. Also, the comparison shows the cultural habits that create the spaces in family\'s houses.
In the theory on linear differential equations (LDE) conditions of reducibility to equations with constant coefficients are known [1]. To prove value of the study and to solve relevant characteristic equations of Riccati type instead of LDEs themselves we obtain conditions of reducibility in another manner.
This article introduces the concept of gradual(or partial) reducibility of linear differential equations (LDE) with variable coefficients. In this article we construct algorithm for reducing the order of LDE with variable coefficients which after replacing variable has at least one solution of exponential form y(t) et .So reduced equation with new variable coefficients has at least one solution of the et form.The second order LDE with variable coefficients is studied in details.The method of solution of LDE by step-by-step reducibility is offered and some specific equations are solved for illustration purposes.
Purpose: The aim of the present study was to investigate the relationship serum level of ghrelin with leptin and adiponectin in active lean and obese adolescent. \nMaterials and Methods: In this study, 15 active lean adolescent boys with BMI of 18.64±2.52 kg/sq meters and 15 active obese adolescent boys with BMI of 30.86±1.75 kg/sq meters who spent at least one hour per week on physical activity were selected as active lean and obese people. At the end, 5 mm of venous blood was taken from the participants to test ghrelin and adipokines (leptin and adiponectin). \nFindings: In the active lean boys, the maximum oxygen uptake, acylated ghrelin and adipokine were higher than those of active obese boys while leptin rate of active lean boy was lower than that of active obese body. Plasma concentration of acylated ghrelin in active lean and obese boys had significantly negative correlation with concentration of leptin (r=0.651, r=0.756, respectively) and had significantly positive correlation with concentration of plasma adiponectin (r=0.472, r=0.568, respectively) and the maximum oxygen uptake (r=0.452, r=0.563, respectively). \nConclusion: Based on the results of this study, it can be inferred that running an active life due to regular physical exercise leads to improvement in ghrelin, adiponectin and plasma leptin values in lean and obese people and decreases potential risk of affliction with some diseases relating to obesity. \nKey words: Ghrelin, Leptin , Adiponectin, Lean , Obese, adolescent