فهرست مطالب morteza vahedi

Human society has passed through three industrial revolutions: steam, electricity, and information technology. It will reach its peak of influence and, like the previous industrial revolutions; the winners of this era will be the dominant powers of the future world. This revolution, which is the result of the integration of biological, physical and digital technologies, can achieve national security at the individual and social, national and international levels by influencing the systems of governance, economic, social, educational and industrial systems. In its various dimensions (military, political, economic, cultural and environmental) to create dramatic changes in human society. In this study, we studied the global trends of these technologies, opinions of experts and published international documents and researches, calculated the main consequences of this technological revolution, and then held two meetings with experts in the field of technology in defense and security departments. we have identified the different dimensions and levels of the consequences and effects of these technologies on the national security of the Islamic Republic of Iran, and we have evaluated and validated the questionnaire designed by the research team. At the end of the questionnaire, a questionnaire was administered to 30 technology activists working in the defense and security sectors, and they approved the various parts of the conceptual model of the research.

The revolution in the field of Fawa shows the necessity of continuous development and evaluation of information and communication systems. The purpose of this research is to provide evaluation models in information systems development methods. The sample of this research was 40 specialists in the development and implementation of information systems, who were selected by the purposeful sampling method. The research tool was made by the researcher’s questionnaire for which Cronbach’s alpha test showed acceptable validity and reliability. The collected data were analyzed along with statistical tests during experiments. The findings have shown that the necessary operations in the traditional method are: needs assessment, feasibility study, conceptual and logical design, deployment and implementation, maintenance, reporting and documentation, setting goals, determining performance indicators, cost-benefit analysis and detailed design. is the system. Prototyping methods include: system improvement and development, needs assessment, conceptual and logical design, programming, testing and evaluation, implementation and physical design. In the life cycle method, they are: design, requirements assessment, feasibility study, feasibility report, identification of user information requirements, conceptual and logical design, programming, evaluation and testing, deployment and implementation, delivery, maintenance and development of the system, report and It is documentation. In the organization-oriented method, they are: determining systems and subsystems, information requirements, managing resources and formulating an information strategy. In the object-oriented method, they are: examining the system’s information interaction, system modeling, identifying important events, change diagrams, modeling processes, and drawing data flow diagrams. As a result different organizations, situations and information systems require the use of different implementation methods, and designers and implementers must act towards the realization of the standard operational measures of each method

Staphylococcus epidermidis produces biofilm by extracellular polysaccharides, causing bacterial adherence to different surfaces. Anti-microbial effects of nickel nanoparticles on some bacterial strains such as S. aureus and Escherichia coli have been determined in limited studies. The aim of the present study is to examine the inhibitory effect of nickel nanoparticles on biofilm formation using clinical isolates of S. epidermidis and its hemolytic effect on human red blood cells.
Twenty two S. epidermidis isolates were collected and identified by standard microbiological methods. Microtiter plate method was used to determine the biofilm production in bacterial isolates . The amounts of biofilm formation by isolates in the presence of 0.01, 0.05, 0.1, and 1 mg/mL concentrations of nickel nanoparticles were measured. Hemolytic activity of different concentrations of nickel nanoparticles was measured on human RBC suspensions.
Twenty isolates were strong, and two isolates were moderate biofilm producers. Biofilm formation significantly decreased in the presence of 0.05, 0.1, and 1 mg/mL of nickel nanoparticles (p In this study, the ability of biofilm production was demonstrated for all clinical isolates of S. epidermidis. On the other hand, the lowering effects of nickel nanoparticles on biofilm formation were observed.

Many developing countries modified their laws and regulations on foreign investment in order to resolve concerns of investors and foreign companies and to provide protection for investment and absorb it. In these Rules¡ besides legal protection of foreign investment¡ relatively liberal foreign investment Policy was adopted and Investment obstacles decreased. Multilateral and bilateral treaties between these countries and the developed countries (owners of capital) accelerated the investment in these countries. Examining the obstacles in our country shows enormous legal challenges In addition to the cultural barriers¡ economic¡ political and structural. In this article we have tried to accurately identify legal obstacles to foreign investment in Iran and to present some solution due to the experiences of other countries and conventions.

The antimicrobial effects of nickel nanoparticles on some bacterial strains such as S. aureus and E.coli have been shown in limited studies. The aim of this study was to investigate the inhibitory effects of nickel nanoparticles on biofilm formation by mupirocin resistant S. aureus isolates.
In this study, 150 S. aureus isolates were collected from educational hospitals in Urmia city. The sensitivity of isolates to mupirocin and other commonly used antibiotics was investigated by agar disk diffusion method. Microtiter dish biofilm formation assay method was used to determine the amounts of biofilm formation in the presence/absence of nickel nanoparticles.
From 150 isolates, 30 ones were resistant to mupirocin. The highest levels of resistance to other antibiotics in Mupirocin resistant isolates were seen to penicillin and Trimetoprim/sulfametoxazol respectively, and the least amounts of resistance were seen to ticoplanin and linezolid, respectively. 33.3% of investigated isolates were biofilm producers. The inhibitory effect of nickel nanoparticles on biofilm formation by mupirocin resistant S.aureus isolates was significant (P = 0.039).
Considering the inhibitory effects of nickel nanoparticles on biofilm of mupirocin resistant S. aureus isolates and the safety of nickel usage in dental materials which allow its administration in the nose and mouth mucosa, after further studies it may be useful for prevention of biofilm formation and removal of the carriers from mupirocin resistant S. aureus.

The conspicuous technologies in cyber space pose varied functions in the IRIB's development. To examine the functions, this study deals with two endogenous and exogenous dimensions of the IRIB's development. The function of cyber space technologies in endogenous development pursues development of land signal distribution and manifests itself in infrastructure, control, establishment and improvement of services and lastly leads to management of network, invigoration of national security and assurance. The functions are fundamentally expressed in development of production, distribution and services the outcome of which could be variety in the IRIB's programs demonstrated in cyber studios and networks such as Pooya, Nasim, Tamasha, Salamat, Ava, Nava and Ketab. In terms of development, the function of cyber technologies has been referred to as performance-basedness, increase of quality, enhancement of services and economization the outcomes of which have been the decrease of consumption goods, increase of services, and increase of quantity-quality of the programs offered to addressees. In relation to human resources and structure, the cyber technologies have played a creative, retrieval, training and omitting role which has resulted in enhancement of skills, digital satisfaction of staff, development of modern media services within and out of the media and has also led to appropriate information to addressees and delivery of proper digital audio-video services in cyber space. It is worth noting this study is conducted upon Fuzzy Delphi and its validity is verified at the end of second stage.

The standard signs are of those signs in which the probability of explaining their legal nature, under commercial and industrial signs, exists. But, based on Iranian current legal texts, there are some obstacles in their pretend as commercial symbols. So, defining the specific nature, such as confirmatory and approval symbols maybe thought as a solution. Although, current administrative procedures, and practitioner›s consideration, and the current laws of the country, expressing these symptoms as located in the states principles,but this article is going to achieve a more nuanced approach, with the analysis of the old and the new rules in standard realm, and also some international treaties, including the treaty of Paris, and the practice of the law of England, of legal nature of the standard symptoms.

law is enacted to have a good process of the affairs and its distinguishing features including justness, and its inclusiveness.Obligation to law enforcement on behalf of judiciary and executive branches is not adequate, therefore the good process of the affairs and proper implementation of the laws need supervision. On the basis of principle the 156 of Iranian constitution, the judiciary branch has the responsibility to supervise the good enforcement of the rules through controlling court judges, Supreme Court, administrative court of justice and general inspection organization. The result of this research using the comparative studies, library and narration analysis method which was accomplished in 2012 indicate that the good process of the affairs is a matter of discretion. Hence this is the enforcement of rather the good process of the affairs which is preferred and later should be postponed to when the laws are legislated.

This research was carried out considering the Pathology of the acts, and regulation related to transferring land in the country beside the suggestion of related solutions for controlling study-research solutions for controlling corruption by using adaptive studies method, and relying on official statistics, and resources of executive, and supervisory apparatuses, and reviewing the acts, and regulations related to this subject in 2010. The damages of such transfers, and the solutions are discussed in this research by taking a look at legislative, administrative, and judicial aspects of this subject. The result showed if some amendments are exerted in the acts, and regulations of natural recourses, and land affairs, and present impediments are removed, the possibility of controlling unlawful possession and transfer of national lands will increase highly specially considering the solutions presented herein.