Original Research Article
Review of Theories of Contractual Liability and Coercive Guarantee
1. Review of Theories of Contractual Liability and Coercive Guarantee

Hormooz Asadi Kohbad; Hasan Bahramipor Naghani

Volume 1, Issue 4 , Summer 2021, Pages 206-214

http://dx.doi.org/10.22034/jstr.2021.287446.1031

Abstract
  Damage does not follow a person's fault enough to establish a causal relationship, but it must be proven that the fault is the actual cause and cause of the damage and without it the ...  Read More
Original Research Article
Documents Forcing a Guarantee
2. Documents Forcing a Guarantee

Hormooz Asadi Kohbad; Hasan Bahramipor Naghani

Volume 1, Issue 4 , Summer 2021, Pages 215-221

http://dx.doi.org/10.22034/jstr.2021.287444.1030

Abstract
  One of the most important rules of jurisprudence that causes coercive guarantee is the rule of Ali al-Aid, which is known by famous jurists, both Shiites and Sunnis, as narrated from ...  Read More
Original Research Article
Risk Allocation in Design Contracts, Supply of Goods and Drilling of Exploratory Wells and How to Manage Them
3. Risk Allocation in Design Contracts, Supply of Goods and Drilling of Exploratory Wells and How to Manage Them

Peyman Vaziri

Volume 1, Issue 4 , Summer 2021, Pages 222-228

http://dx.doi.org/10.22034/jstr.2021.287601.1034

Abstract
  Design, supply and drilling (EPD) contracts, referred to in the downstream industry as turnkey contracts, are new contracts in the drilling industry that can be attractive to both employer ...  Read More
Original Research Article
The Role of Intellectual Property Rights in Business Promotion
4. The Role of Intellectual Property Rights in Business Promotion

Ahmad Keshavarzi

Volume 1, Issue 4 , Summer 2021, Pages 229-233

http://dx.doi.org/10.22034/jstr.2021.288185.1035

Abstract
  One of the infrastructures that can guarantee the economic and technological success of researchers and knowledge-based companies in the age of knowledge is the attention to intellectual ...  Read More
Original Research Article
Evaluation of Corona Charge Positive and Negative Impulses on Polymeric Surfaces and Simulation of Impact Rate
5. Evaluation of Corona Charge Positive and Negative Impulses on Polymeric Surfaces and Simulation of Impact Rate

Ebadollah Amouzad Mahdiraji

Volume 1, Issue 4 , Summer 2021, Pages 234-241

http://dx.doi.org/10.22034/jstr.2021.289237.1038

Abstract
  Corona electric discharge phenomenon occurs when the electric field intensity exceeds the corona threshold. In the analysis of this paper, three types of hypotheses of partial charge ...  Read More
Original Research Article
Laboratory experiment of the extraction of active pharmaceutical ingredients of Oliveria decumbens plant by supercritical method using the ultrasound process
6. Laboratory experiment of the extraction of active pharmaceutical ingredients of Oliveria decumbens plant by supercritical method using the ultrasound process

Nabil Vaeli

Volume 1, Issue 4 , Summer 2021, Pages 242-251

http://dx.doi.org/10.22034/jstr.2021.289216.1036

Abstract
  In this research, the Oliveria decumbens native and medicinal plant has been used. The extract of this plant contains anti-inflammatory compounds, very strong antioxidants, Allergic ...  Read More
Short Communication
The Effects of Physical Exercise on the Immune System
7. The Effects of Physical Exercise on the Immune System

Sareh Sangy; Faegheh Miryousefiata

Volume 1, Issue 4 , Summer 2021, Pages 252-257

http://dx.doi.org/10.22034/jstr.2021.289261.1040

Abstract
  Background and Aim: Physical activity and abnormal environments cause changes in the functioning of the immune system. The aim of this study was to compare the effect of exercise in ...  Read More