فهرست مطالب عطالله محمدی

Obesity increases risk of venous thromboembolism due to increase in coagulation factors. Screening for deep vein thrombosis (DVT) before bariatric surgery can minimize the incidence of venous thromboembolism (VTE) in these patients. This study aimed to determine the importance of color Doppler ultrasound before bariatric surgery to detect subclinical deep vein thrombosis in the patients.

This was a descriptive cohort study. The study population included candidates for bariatric surgery admitted to Modares and Loghman hospitals in Tehran (a bariatric surgery center in Iran) between March-20 and September-20, 2021. Patients were followed up for 30 days after surgery. Census sampling was used. Data were finally entered into SPSS-23 statistical software and analyzed by descriptive tests.

Among 125 patients in this study, 85 (64%) were woman. The patient’s mean and standard deviation of age and Body Mass Index were 33.68 ± 6.8 and 43.15 ± 4.9, respectively. Before surgery, all patients were evaluated for subclinical DVT and the results of the study showed that none of the patients had any evidence in favor of DVT. After the surgery, the patients underwent regular follow-ups for a month, but no positive cases of deep vein thrombosis were reported.

In our study thromboembolic problems were rare in patients before obesity surgery. Therefore, routine ultrasound examination before surgery does not seem reasonable.

The purpose of this research was to investigate the impact of factors on the optimal model for mudarabah sukuk for importing goods. The statistical population of this research was 290 financial and marketing managers and import industry specialists in stock exchange companies between 1397 and 1399. Based on Cochran's formula, 166 people were selected. After identifying the components, based on the obtained information, a researcher-made questionnaire based on the Likert scale was prepared to examine the current situation. First, in order to choose the appropriate test for the exploratory factor analysis test, it is necessary to examine the assumption of normality of the research constructs. For this purpose, the Kolmogorov-Smirnov test was used, and to perform the test, Lisrel software was used to extract the model by the confirmatory factor analysis method. The results showed the variables of the amount of financing required, whether the bond rate is fixed or floating, issue cost, the underwriting element, the guarantor element and its nature, the type and nature of the asset underlying the issuance of the bonds, the possibility of trading in the secondary market, the auditor element of the founder, The way of offering the bonds, the nature of the sukuk in terms of the type of ownership, the target market, the place of use of the proceeds by the originator, the ability to convert the bonds and the intermediary institution (issuer) have been to provide the optimal model for the mudarabah sukuk for importing goods.

The purpose of this research was to investigate the impact of factors on the optimal model for mudarabah sukuk for importing goods. The statistical population of this research was 290 financial and marketing managers and import industry specialists in stock exchange companies between 1397 and 1399. Based on Cochran's formula, 166 people were selected. After identifying the components, based on the obtained information, a researcher-made questionnaire based on the Likert scale was prepared to examine the current situation. First, in order to choose the appropriate test for the exploratory factor analysis test, it is necessary to examine the assumption of normality of the research constructs. For this purpose, the Kolmogorov-Smirnov test was used, and to perform the test, Lisrel software was used to extract the model by the confirmatory factor analysis method. The results showed the variables of the amount of financing required, whether the bond rate is fixed or floating, issue cost, the underwriting element, the guarantor element and its nature, the type and nature of the asset underlying the issuance of the bonds, the possibility of trading in the secondary market, the auditor element of the founder, The way of offering the bonds, the nature of the sukuk in terms of the type of ownership, the target market, the place of use of the proceeds by the originator, the ability to convert the bonds and the intermediary institution (issuer) have been to provide the optimal model for the mudarabah sukuk for importing goods.