BACKGROUND Kidney transplantation is the best alternative treatment for end-stage renal disease. Several studies have been devoted to investigate predisposing factors of graft rejection. However, there is inconsistency between the results. The objective of the present study was to utilize an intuitive and robust approach for variable selection, random survival forests (RSF), and to identify imp...

OBJECTIVE Rejection sensitivity (RS) is a tendency to expect, perceive, and overreact to rejection. Our objective was to examine whether anxious and angry RS have specific associations with negative social reactions, and whether responses are intensified in situations of high rejection ambiguity. METHOD In two studies, youth (N = 464 and N = 371) reported their RS and anticipated responses to...

abstract background: keratoconus is a bilateral corneal disease, which one way to cure it is to transplant. the transplantation may be rejected by recipient's immune system, which leads to failure of the graft. this study aimed to analysis the factors affecting bilateral corneal graft rejection based on copula function. methods: a sample of bilateral graft rejection times was assessed. since co...

the main objevtive  of  the study is to determine the factors which influence the addeptance or rejection of rural livestock insurance in garmsar. the research method is descriptive one. there are  two groups of  research populations: 1467 cases in acceptance group & 7000 cases in rejection group. the sample population is 320 cases among 8467 ones. data collection instrumennt is questionnaire. ...