Rivest and Lampson have recently introduced SDSI, a Simple Distributed Security Infrastructure. One of the important innovations of SDSI is the use of linked local name spaces. This paper suggests a logical explanation of SDSI’s local name spaces, as a complement to the operational explanation given in the SDSI definition.

urban public spaces are the most important instruments to strengthen the participation of civil society as an arena of all groups both men and women. women as half of the public spaces users should use urban public spaces as well as men easily and they must feel comfortable in these kinds of places. however, experiences and also the result of researches have shown that women do not benefit equa...

objectives: the purpose of this research was to identify and present environmental aspects that affect elders presence and participation in urban public spaces. methods & materials: the current research is an analytic- descriptive type in survey beds. statistical sample of this research were elders over 65 years of shiraz city that attended and participated in urban public places. data of this ...

Right to the city is composed of appropriation and participation in urban affairs. Appropriation is realized through movement in the city, presence in it, comfort feeling, and having proper spaces. While urban participation is possible through being involved in urban policy-making, decision-making for physical and spatial issues, urban economy, ownership and control of urban...

the aim of this paper is to investigate the bazaars and shopping centers as public spaces. given theweakness of public places and consequently the weakness of social interactions, today’s societies are in dire need ofsocial spaces to increase social interactions. therefore, the review of these two as then and now’s urban spaces couldhelp solve some problems. bazaars are among the oldest iranian...

This Study has discussed the meaning of public space and has shown that public spaces are an essential part of people’s lives. It has also identified the key urban design and architectural ideologies that have influenced the shape of the built environment, and has discussed how each has perceived the value of public spaces. In the following provides an overview of the relationship between peopl...

public spaces, a central role in planning and urban development is major components of an urban environment is healthy and lively. qualitative and quantitative development of urban public spaces, when appropriate administrative process will be realized, the priority issues in the survey cities, based on modern theories of popular participation (user's perspective) and using the scientific ...

in recent decades, changes can be observed around the presence of women in urban public spaces. this paper investigates on the presence of women in these spaces in terms of selectivity or necessity. method of research is survey and questionnaire is used to collect data. the statistical sample includes 128 male and 133 female residents of the city of tabriz that are studied with random sampling....