Background and aims: CONTRAST-induced nephropathy (CIN) is a common and serious complication related to the intravenous injection of iodinated CONTRAST media. Thus, the aim of this study was to evaluate CIN frequency and the relationship of some variables with CIN in patients who were referred to Hajar hospital, Shahrekord, Iran. Methods: The study was performed on 200 patients who were candidates for CONTRAST-enhanced computed tomography with intravenous CONTRAST in Shahrekord, Iran, in 2018. Metformin and non-steroid anti-inflammatory drugs were discontinued from 48 hours before to 48 hours after the CONTRAST prescription. Almost 100 mL of nonionic, iso-osmolar CONTRAST media (Visipaque or Dixopaque) were used for patients. After 48 hours of CONTRAST injection, blood urea nitrogen and serum creatinine (Cr) were checked, and the related data were collected. Cr rising>0.3 mg/dL of baseline and Cr rising>0.5 mg/dL were considered acute kidney injury (AKI) and CIN, respectively. Results: The mean age of patients was 63.65±20 years. In addition, the mean serum Cr of patients before and after the CONTRAST injection was 1.13±0.83 mg/dL and 1.10±0.72 mg/dL, respectively (P=0.44). The frequency of AKI nephropathy (serum Cr rising>0.3 mg/dL) was 11.5% (n=23). However, with a 0.5 mg/dL increase in serum Cr, it was 4.5% (n=9). Only the age of patients was found to be a risk factor for CIN. Conclusion: CIN was not common in cases with normal or near-normal renal function. However, CONTRAST prescription should be performed more carefully in old age patients.

Bladder leiomyoma is a rare benign neoplasm that may mimic a malignant lesion in medical images. We report a woman with bladder leiomyoma who was correctly diagnosed by CONTRAST-enhanced ultrasound (CEUS). The patient was referred to our hospital after a bladder neoplasm was detected during a health checkup. CEUS showed fast wash-in and slow wash-out in the tumor, similar to a normal bladder wall. To conclude, bladder leiomyoma has its specific characteristics on CEUS, and this modality may be a good option for diagnosis of bladder leiomyoma.

As I was searchingin rhetorical books for the exact meaning of the (Mokabalah), I found several descriptions by many authors, some of them are almost close to each other whereas others are not. While I was making inquiries I came across the view of Ibn - abil - Hadeed within (Sharh Nahj al - Balaghah). I made a careful scrutiny and discovered that he explained every thing in greater detail as he mentioned precisely many aspects related to rhetoric and elaboration that nobody preceded him so he hit the mark. I combined the quotations and researches and put them in these directions: 1. The definition of Mokabalah 2. Its usage and conditions 3. The opinion of Ibn - abil - Hadeed and his criticism of Ibn -Alathir 4. The division of Mokabalah in regard with the numbers of the contraries.

In his many works about aesthetics, morality and philosophy, Schiller always has a unique concern: radical separation or CONTRAST that can be seen in culture, society and politics. The basis of this CONTRAST is the same with the old metaphysical CONTRAST between matter and form. On the other hand, he thinks that the basis of all these CONTRASTs should be searched in human being. Modern man, opposing ancient Greek's, is a broken one since some parts of him is always dominating over his other parts. As Schiller believes, we have two drives: sense drive and form drive. The first represents man’s materialistic dimension and the second represents intellectual and moral dimension. But there is a third drive, the play drive, that with which Schiller tries to solve the problem of CONTRAST between matter and form or sense and reason. It is this that is our question here: How can Schiller solve this big problem of CONTRAST with the concept of play? With this concept, he goes beyond that duality. The human being can be a human being only when he goes beyond these two drives and reaches to the third. This third drive is play drive and the perfect man is a man who plays. The play drive is not the equilibrium of those two drives but is that which goes beyond them. It is with this drive that a man can go beyond sense and reason and instead of feeling or thinking can play. It is beauty that leads human being to play drive; man plays only with beauty and this beauty is nothing except "freedom of semblance".