ABSTRACT
The aim of this study is to investigate the usability of conventional masks to prevent the transmission of coronavirus 2019 (COVID-19) and subsequently design the proposed concept of the mask to reduce leakage and increase efficiency. Acute respiratory syndrome COVID-19 is spreading around the world and can be transmitted from one person with COVID-19 to another through personal contact and breathing. Improper design of current masks can lead to virus transmission. One hundred fifteen users participated in the study using a simple random sampling method in which N95-FFP2 face mask and surgery face mask usability tests were chosen as the most widely used face masks in Iranian people with an online usability questionnaire. Data were analyzed by SPSS. The results showed that the usability of the N95-FFP2 face mask with a total average of 4.46 and a surgical mask with a total average of 3.35 cannot be considered acceptable. Anthropometric and formal changes in people's faces and improper design of the face masks used make it necessary to review the mask redesign measures to increase the prevention of pathogens. In this study, new parameters for face mask design are proposed. Thirty different types of jaws have been considered with the help of CorelDRAW software, along with ideas for optimal mask design with UVW mask concept to be accessed by manufacturers around the world.
ABSTRACT
BACKGROUND: Sexual violence (SV) against women is one of the most important issues in women's health. We aimed to investigate the related variable for SV against women with HIV spouse and its relationship with mental problems in them. STUDY DESIGN: A cross-sectional study. METHODS: This study was performed on 143 women referred to Hamadan and Malayer Risky Behavior Related Disease Clinic (Triangular Clinic), located in Comprehensive Health Service centers, Iran in 2019. SV and mental problems were assessed using standard questionnaires, based on interview. All analyses performed using SPSS. The significance level of all analyses was considered 0.05. RESULTS: Totally, 407 HIV+ patients were diagnosed from 1998 to 2018, in Hamadan and Malayer cities. We assessed the wives of survivors who allowed about SV. Mean of SV in women with HIV positive spouse was significantly higher than control group (P=0.004). Among all variables, unsafe sex, extramarital relationship, smoking, alcohol, multi-partner and suicide were significantly related to SV; but age, living area, educational status, income and job in both men and women had not statically significant relationship with SV. CONCLUSION: SV besides its complications and mental problems in women with HIV positive spouses must be considered in interventional programs in order to improve sexual rights in this vulnerable group in the future.