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Objectives: Injecting heroin is the most common documented reason for HIV infectious in IRAN. Drug Injection is the most common type of misusing opiate in homeless addicted persons. Different studies found that there are specific relationships between drug abuse, injecting with shared needles and other risky behaviors which are related to HIV infection and personality and behavioral characteristics such impulsivity.

Method: According to high prevalence of heroin injection in homeless opioid dependents in Tehran, Iranian Police Force in cooperation with Drug Court and Ministry of Health, systematic intervention in homeless people in city of Tehran’ project, perform a methadone maintenance program for these people for 3 months in Shafagh rehabilitation center. In duration of therapy, some serologic examinations were done for diagnose and perform next interventions because of acquisition of HIV Infectious. This research was designed to examine and compare of some behavioral scales between 2 groups (HIV⁺  and HIV^-) before accomplishment of therapy. 52 persons selected in this research (25 HIV⁺  and 27 HIV^-) and Barret Impulsiveness Scale, Eysenck Impulsiveness Questionnaire, Delay Discounting Task, demographic information form and clinical interview performed for gathering databases.

Finding: HIV infectious was related to injection drug history; in addition, HIV infectious was related to prison history. The difference in impulsivity scale of Barret and Eysenck Questionnaires between 2 groups was significant.

Results: the high rate of impulsivity and probability of sharing needles in injection drug users in compare of other injection drug users leads to progressing AIDS. High rate of impulsivity and sharing needles are two most important anticipations for acquisition of AIDS.

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Short Abstract
The major aim of the current study was on confirmed hypothesis in the previously conducted studies: the relationship between the social status and the tendency to homelessness among homeless people in Tehran.
Mixed methods research design was used to collect data. In the quantitative part of the study, the survey method was used, and the data were collected by researcher-made questionnaire. In this section, the participants consisted of 12048 people. According to Cochran formula, 372 individuals were selected using a random sampling method. In the qualitative part of the research, the data were collected through interviewing 34 homeless people.
The results of the survey in quantitative and quantitative section showed that the relationship between the homeless and the social base was not significant at 95% confidence level. Subsequently, based on the collected data, three social bases of high, medium, and low social were distinguished from one another, with a relationship between the orientation towards the low and moderate social base and homelessness in the 95% confidence level. Thus, the components of the social base and its role in the orientation to the homelessness and the findings of interview with the subjects showed that in the lower social base, immigration and marginalization, presence in dangerous situations increased. At the top of the social base, the diversity of leisure opportunities also increases the chance of being in high-risk situations, leading to addiction and homelessness. These results showed that the contradictory hypothesis about the relationship between economic poverty, and it was also found that the tendency towards social deviations cannot always be meaningful.

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Introduction:  Homelessness is one of the important issues of urban life in the last two decades..
It seems that society's concerns for the problem of homelessness and not finding a solution to solve it have led to turning to stigma: The violence against the homeless, the criminalization of homelessness, the invisibility of the homeless and using terms such as vagabond and drug addict. Media coverage plays an important role in the stigmatization and de-stigmatization of homelessness.
Method: To study the status of stigma (components, management and types of stigma) in radio programs related to homelessness, six programs were analyzed based on semiotic analysis, as one of the widely used methods in qualitative research of media texts.
Findings: The findings show that addiction and inappropriate appearance are highlighted as a "mark" and addict as a "group labeling" of homelessness. The stigma of "peril" is very prominent in the programs with the presence of informants and experts, and various types of harm, including crime and theft, the spread of addiction, disease, and identity less children, and the destruction of the spirit of society are attributed to this group. Stigma management in programs with the presence of homeless people is through "self-disclosure" and "masking", while stigma management in programs with the presence of informants and professionals is through two methods of "hiding" and "displacement".
Discussion: Despite the fact that in radio programs, the issues and problems of homelessness are not raised much, and the problem of addiction is mostly highlighted, and the issues related to poverty and the form of residence are not considered, but a space is provided for the homeless to talk about their personal experiences and for organizations to introduce their services. These conversations help to fade some stigmas and help people get to know each other more.