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Introduction: Human immunodeficiency virus (HIV) infection has become a major health challenge in recent decades. Poor health knowledge can lead to the faster transmission of HIV in the community. This study aimed to investigate the association of social capital and acquired immunodeficiency syndrome (AIDS) health literacy with AIDS risk perception in Iranian adolescents. Material and methods:This cross-sectional study was conducted with 354 high school students of Kermanshah city, the west part of Iran, selected by multi-stage sampling method. Respondents filled out social capital, HIV/AIDS health literacy, and AIDS risk perception questionnaires. Data were analyzed by SPSS-18 using Pearson correlation, regression, ANOVA, and independent t-tests. Results:The mean age of respondents was 17.02 ± 0.84 years. The results of independent t-test showed that girls had more scores in family social capital (p = 0.009) and school social capital domains (p = 0.001).There were a moderate and significant correlations between AIDS health literacy with family social capital (r = 0.178; p = 0.001) and AIDS risk perception (r = 0.317; p = 0.009). Also, regression analysis showed that 12.1% of variations in AIDS risk perception were explained by several variables of the study. Conclusions:Considering the relationship between AIDS health literacy and social capital with AIDS risk perception, it can be concluded that the increased power of visual and written analysis and understanding of adolescents, along with cohesion, respect, trust, and mutual understanding in the family, can be a protective factor against HIV disease.

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Density functional theory (DFT) calculations were performed to investigate the curcumin adsorption at the surfaces of two boron nitride (BN) nanostructures including nanosheet (BNNS) and nanotube (BNNT). The singular models were optimized to reach the stabilized structures and to evaluate electronic features. Next, performing optimization processes on interacting systems yielded formations of bimolecular complexes through occurrence of physical interactions. For curcumin, keto and enol tautomeric forms were investigated for participating in interactions with the BN nanostructures, in which the enol form was seen for participating in stronger interactions with both of BNNS and BNNT surfaces in comparison with the keto form. Based on such interactions, electronic molecular orbital features detected the effects of molecular communications to show benefit of employing BN nanostructures for drug delivery purposes. Moreover, BNNS was seen to work better than BNNT for such purpose of adsorption and detection of curcumin substance.