hosein aghababaei

Sexual victims are considered the most vulnerable victims, which sometimes leads to their murder. In sexual murders, if the victim is a child and is victimized after sexual abuse, it hurts collective feelings more than any other crime. The aim of the current research is to investigate and analyze the criminology of sexual victimization of children.

According to the nature of the subject, the research was conducted in terms of practical purpose and in terms of gathering information through documentary method and through the study of court case, and the academic information was written in a descriptive-analytical form.

In the theories of criminologists, criminology has different approaches, according to which,according to the process of sexual murder and the way the victim was victimized, his victimization can be analyzed with criminological theories such as theories of opportunity,neighborhood, daily activities, lifestyle, and acceleration of the victim.

by summarizing the theories of opportunity, neighborhood, daily activities and lifestyle; It can be said; The issue of sexual victimization leading to the murder of the victim can be compared with the theory of acceleration of the victim. Based on this theory;The position and nature of the behavior of Athena and those around her have been influential in the process of committing a crime by the criminal; Because the position, style and lifestyle of the victim and his family have motivated the criminal to commit sexual murder. What is certain is that Athena did not have any active or passive role in her victimization.

Dendrimers are a subset of branched structures that have certain structural order. The aim of this study was to investigate the performance of Polypropylenimine-G2 (PPI-G2) dendrimers in removal of Escherichia coli, Proteus mirabilis, Bacillus subtilis and Staphylococcus aureus from aqueous solution. In this experimental study, initially dilution of 103 CFU/ml was prepared from each strain of bacteria. Then, different concentrations of dendrimers (0.5, 5, 50 and 500 µg/ml) was added to water. In order to determine the efficiency of dendrimers in removal of bacteria, samples were taken at different times (0, 10, 20, 30, 40, 50 and 60 min) and were cultured on nutrient agar medium. Samples were incubated for 24 hours at 37 ° C and then the number of colonies was counted. By the increasment of dendrimer concentration and contact time, the number of bacteria in aqueous solution decreased. In times of 40, 50 and 60 minutes, and the concentrations of 50 and 500 µg/ml, all kinds of bacteria in aqueous solution were removed. 0.5 µg/ml of dendrimer concentration h ad not effect in reducing the number of Escherichia coli and Proteus mirabilis. The effect of dendrimer on gram-negative bacteria was weaker than gram-positive bacteria. Results of this study indicated that PP I -G2 dendrimer is able to remove Escherichia coli, Proteus mirabilis, Staphylococcus aureus and Bacillus subtilis in aqueous solution. However, using dendrimers can be considered as a new approach for drinking water disinfection but it requires further wide range studies.