Based on the number of recorded indexes in the Web of Science (WOS) in Clarivate Analytics, the number of Iranian scientific documents is 47260 (2. 06% of the world value and rank of 16,one improvement stage compared to the previous year) in science, 3164 (0. 77% of the world value and rank of 32,similar to the previous year) in social sciences, 244 (0. 21% of the world value and rank of 40,four improvement stage compared to the previous year) in art and humanities and 48292 (1. 87% of the world value and rank of 16,one improvement stage compared to the previous year) in total, in 2019. Increase the number of scientific documents relative to past year was 14. 3%, which in comparison to two before years shows much more acceleration. In 2019, Iran was able to surpass Switzerland in the production of scientific documents and increase its rank from 17th to 16th. In Emerging Sources Citation Index (ESCI), Iran had 11389 records of indexes in 2019 and by 3. 3% contribution obtained the rank of ninth, similar to the previous year. Similar to the last year, USA, China and England were the ranks of one to three in the world due to their contributions of 26. 5%, 20. 5% and 7. 0%, respectively, for scientific documents productions in 2019. University of Tehran, Tehran University of Medical Science, Shahid Beheshti University of Medical Science, Tarbiat Modares University and Amir Kabir University of Technology were the five top governmental universities in 2019 respectively, as the previous year. 15. 0% of scientific documents are related to the all branches of Islamic Azad University in 2019. The number of highlycited and hot articles in the country along with the number of citations to published Iranian articles has been growing well, which shows the growth of the quality of scientific documents in the past few years.

The heterogeneous and mosaic socio-political conditions of Lebanon, which is rooted in the history of this country, are the main reason for the formation of unrest and the lack of consensus among political elites to create reconciliation between ethnic and religious groups and currents inside this country. But besides the above factor, other factors are also effective in this field. The current research tries to answer this question with a descriptive-analytical approach and through library that what were the most important influential factors in the formation of Lebanon's political crisis and its spread to other areas between 2005 and 2019? (question). In this research, the authors analyze the role of domestic, regional and international components by using the level of analysis approach as well as Little's security approach, which deals with socio-political cohesion and the type of security environment. The findings indicate that the internal differences between different ethnic and religious groups have caused the weakness of the government institution and they have provided the ground for foreign actors to play a role in the political sphere of Lebanon. In addition to the internal components, the interventionist role of foreign actors and their alliance with ethnic and religious groups with the aim of achieving their desired interests, has caused the failure to reach a collective agreement among the political elites of this country. This issue doubled the problem of fragmentation, instability and deep political, social and economic crises in Lebanon during the years 2005 to 2019 (findings)

Currently, nCoV-2019 has affected more than 100 countries around the world, including Iran. This widespread epidemic has caused concern in the scientific and medical community because little information is available about the new virus and there is no specific treatment for it. Therefore, in this article we tried to give deeper information about virus of possible origin of the new coronavirus and its relationship with other previous coronaviruses. So, the mechanism of virus entry into the human cell and the factors involved in this process, such as virus proteins, are described. Other information presented here includes clinical signs of the disease and laboratory methods for detecting the virus, the stability of the virus at different levels, the zoonotic transmission, preventive measures such as strengthening the immune system and and treatment strategies such as plasma therapy. Also, this study provides evidence of amino acid changes in genomic specimens, the creation of new species, and the possibility that the virus may develop or be laboratory. Finally, some of the issues that remain unclear are discussed here.