Search

Making long-term investments in the oil and gas industry to maintain the current production levels and increase its capacity is one of the ways to increase economic resilience in the country's upstream documents, including the resistance economy's general policies. In recent years, there have been intense sanctions on the country, especially in the energy field. The importance of proper use of China's allocated credit lines to finance these projects is revealed due to the high need for investment in oil and gas industry projects and the impossibility of covering the investment needs of this industry from domestic sources, and the challenge in effective communication with international monetary and financial institutions. Anyway, the conducted studies indicate serious challenges in using the capacity of these credit lines. For this purpose, this research tries to investigate these challenges from many aspects. After studying the background of the research and reviewing various sources, this article conducted targeted interviews with financing experts. Also, the challenges of using credit lines were extracted and classified into four categories: financial and economic, executive and operational, structural and institutional, and juridical and legal, utilizing the method of thematic analysis and focus group. The extracted challenges were exposed to experts to validate the findings. Finally, the formation of the focus group presented the corrective solutions for the use of credit lines to finance oil and gas industry projects.

Background: Infants born with congenital heart disease (CHD) typically present different clinical manifestations which make this condition hard to diagnose. Considering serious complications arising from misdiagnosis, inventing new methods and/or improving traditional diagnostic approaches has always been a research objective. Methods: In this cross-sectional analysis, which took place in Children's Medical Center in Tehran, 150 infants admitted to an intensive care unit were evaluated based on echocardiographic findings from 2015 to 2017. Echocardiography was done due to abnormalities in physical examination and/or oxygen saturation level. Results: The sensitivity of clinical study value was 82% and the negative predictive value was 20%. The sensitivity of arterial oxygen saturation immediately after admission to the neonatal intensive care was 92%, the specificity was 34%, positive predictive value was 56% and negative predictive value was 25%. Conclusion: In terms of high sensitivity, clinical symptom including tachypnea, cyanosis, arrhythmias, respiratory distress, cardiac murmur, or arterial oxygen saturation level in newborns may be useful for screening CHD. Among the clinical manifestations, cyanosis and respiratory distress are more valuable.