objective: this research aimed at evaluating the moderator role of school connection on the impact of violent friends towards aggressive behaviors in adolescent students of tehran high schools. methods: a sample of 3529 participants from tehran high school students was selected using multistage sampling method. participants completed school connection questionnaire (scq), iranian adolescents ri...

Nowadays, peer-to-peer (P2P) streaming systems have become a popular way to deliver multimedia content over the internet due to their low bandwidth requirement, high video streaming quality, and flexibility. However, P2P streaming systems are vulnerable to various attacks, especially pollution attacks, due to their distributed and dynamically changing infrastructure. In this paper, by exploring...

The rapid growth of communication technologies in the past years has enabled development of collaborative peer-to-peer applications. The reliable collaborative application must implement some methods which help to detect malicious entities and avoid collaboration with them. Such systems are based on building trust relationships between entities; their design is difficult due to a decentralized ...

Nowadays, peer-to-peer (P2P) streaming systems have become the most popular way to deliver multimedia content over the internet due to their low bandwidth requirement and high video streaming quality. However, P2P streaming systems are vulnerable to various attacks, especially pollution attacks, due to their distributed and dynamically changing infrastructure. In this paper, by exploring the un...

today, women`s social health has become an important and critical issue. social health is the reflection of society`s conditions and it is derived from multiple social factors. intervention in these factors is beyond the medical profession and sociologists are required in this field. on the other hand, trust has become a vital topic in human communities in the present era. considering the effec...

trust, along with transparency, is an important indicator of a satisfactory relationship between a government and the public. considering transparency as the key to trust in government, the purpose of this paper is to postulate a link between transparency and trust taking into account satisfaction as a psychological factor. this paper tries to find the answer of these questions: “is there any s...

in modern times, trust has become an issue crucial to human societies and it has basic role in confronting policies with social problems, particularly in the field of environmental risks. to counter environmental risks such as climate change requires knowledge that is gained through trust to its related informational institutions. these institutions cause the awareness of environmental issues a...