• List of Articles حساسیت

      • Open Access Article

        1 - Improvement of the bulk sensitivity and FoM of the plasmonic nanodipole antenna array
        Samira  Amiri Najmeh  Nozhat
        In this paper, the sensitivity of a plasmonic nanodipole antenna array for different materials of the metal nanodipole and substrate is calculated by changing the refractive index of the surrounding medium. The performance of our proposed array is studied at two wavelen More
        In this paper, the sensitivity of a plasmonic nanodipole antenna array for different materials of the metal nanodipole and substrate is calculated by changing the refractive index of the surrounding medium. The performance of our proposed array is studied at two wavelengths of 1310 and 1550 nm, the wavelengths of the second and third telecommunications windows. It is shown that by using the silver (Ag) nanodipole instead of the gold (Au) one, the bulk sensitivity of the nanostructure is improved. By replacing the substrate material from Si to SiO2, the sensitivity increases up to 1220 and 1150 nm/RIU at the wavelengths of 1310 and 1550 nm, respectively, that is very suitable for sensing applications. Moreover, the figure of merit (FoM) of the plasmonic sensor is calculated for both substrates and nanodipole materials. The maximum value of the FoM is obtained for the nanoantenna array with SiO2 substrate and Ag nanodipole and it is equal to 14.35. Furthermore, it is shown that by increasing the thickness of the nanodipole, the nanostructure sensitivity and FoM are enhanced Manuscript profile
      • Open Access Article

        2 - Analysis of vulnerability of groundwater resources and analysis of the sensitivity of drastic model using map removal and single-element mapping methods using Monte Carlo technique
        hadi Modabberi Mirmoslem Rahbar hashemi mehdi ashournia
        Applying a proper management on water resources by identifying vulnerable areas as the first solution can be useful. The purpose of this study was to assess the vulnerability in the central plain of Guilan with drastic model. To identify the vulnerable areas of the cent More
        Applying a proper management on water resources by identifying vulnerable areas as the first solution can be useful. The purpose of this study was to assess the vulnerability in the central plain of Guilan with drastic model. To identify the vulnerable areas of the central plain of the Guilan plain to pollution, drastic model was used and an aquifer vulnerability map was developed. The principles of the drastic model are based on the combination of seven components, depth to static level, net nutrition, aquifer environment, soil environment, topography, unsaturated environment, and hydraulic conductivity, which after ranking and applying weight impact on each component and algebraic composition of seven components, the final result will indicate the aquifer vulnerability. For this purpose, first, the information of the seven components in the central aquifer of Guilan was collected, and after entering in the GIS software, the layers needed for the model were finally prepared. Then, by using overlapping techniques after applying the required weight coefficients for each layer, a final vulnerability map was prepared. The profile of the drastic model varied from 82 to 182 for the vulnerability of the central aquifer of Guilan. The final drastic model map showed that 48.64% of the area had a high vulnerability and 50.55% had moderate vulnerability and only a small area of the plain (0.81%) had a low vulnerability. Based on the sensitivity method of map removal and single component and using the Monte Carlo technique, the depth distance to the station level was identified as the most effective component and saturation zone as the second most effective component in the central plain of Guilan. Manuscript profile
      • Open Access Article

        3 - Develop a Structural Model of Unconditional Self-acceptance, Rejection Sensitivity, Imagine the Future and Childhood Experience of Care in Working Children and Adolescents
        Narhes Ghasemi Yasser Rezapour Mirsaleh Mohammad Hadi Safi
        Child labor is one of the social ills of today's society. This study aimed to investigate a structural model of unconditional self-acceptance, rejection sensitivity, future expectations, and childhood experience care in working children. A correlational design using str More
        Child labor is one of the social ills of today's society. This study aimed to investigate a structural model of unconditional self-acceptance, rejection sensitivity, future expectations, and childhood experience care in working children. A correlational design using structural equation modeling was conducted. The statistical population of this study include the working child who lived in Yazd and Isfahan cities in 2020. A total of 160 children was selected using available sampling methid and answered to Chamberlin and Haaga’s unconditional self acceptance cale, Downey and Feldman’s sensitivity to rejection scale, Mcwhirter’s future expectations scale, and Bifulco, Brown and Harris’s childhood experience of care questionnaire. The findings showed that unconditional acceptance had a negative and significant effect on sensitivity to rejection (P<0.05). Childhood experience of care had a negative and significant relationship with future expectations while being positively and significantly related to sensitivity to rejection. Likewise, rejection sensitivity had a significant and negative effect on future expectations (P<0.05). The results did not support the direct effect of unconditional acceptance on future expectations. Regarding the results, it can be concluded that improving childhood care, reducing sensitivity to rejection, and working on the unconditional acceptance of these children, helped to improve their lives. Manuscript profile
      • Open Access Article

        4 - The mediating role of metacognitive beliefs in the relationship between anxiety sensitivity, responsibility and obsessive-compulsive symptoms
        Morteza Aghaeimazraji Mahmoud  Najafi Mina Shirmohammadali
        The purpose of this research was to determine the mediating role of metacognitive beliefs between anxiety sensitivity, responsibility and obsessive-compulsive symptoms in the general population living in Tehran. The descriptive research method was correlation type (path More
        The purpose of this research was to determine the mediating role of metacognitive beliefs between anxiety sensitivity, responsibility and obsessive-compulsive symptoms in the general population living in Tehran. The descriptive research method was correlation type (path analysis). 300 people from among the general population living in Tehran city were selected through an internet call, according to the entry criteria in the accessible sampling method. The tools used in this research include the Revised Obsession Scale (OCI-R); (Foua et al., 2002), Anxiety Sensitivity Inventory (ASI) (Rice et al., 1986), Responsibility Attitude Scale (RAS); (Salkovskis et al., 2000) and metacognitive beliefs questionnaire (MCQ-30); (Wells, 1997). The data showed that anxiety sensitivity and responsibility have a direct and significant relationship with obsessive-compulsive symptoms, and metacognitive beliefs have a mediating role in the relationship between anxiety sensitivity and responsibility with obsessive-compulsive symptoms, and the indirect effect of metacognitive beliefs in the relationship between anxiety sensitivity, Responsibility and obsessive-compulsive symptoms were significant.In general it can be concluded that anxiety sensitivity and responsibility can cause the emergence and continuation of obsessive-compulsive symptoms by increasing metacognitive beliefs. According to the research results and the mediating role of metacognitive beliefs in relation to obsessive-compulsive symptoms, planning to improve people's education in the field of anxiety sensitivity and responsibility can play an important role in reducing obsessive-compulsive symptoms through metacognitive beliefs. Manuscript profile
      • Open Access Article

        5 - Developing a causal model of adolescent vulnerability to addiction based on the sensitivity of sensory processing and behavioral brain systems with the mediation of childhood trauma
        safura  keyvanlo Akbar  Atadokht
        Adolescents are heavily influenced by social and cultural changes that are exposed to harmful environmental stimuli such as addictive; Therefore, the present study was conducted with the aim of investigating the causal model of adolescent vulnerability to addiction base More
        Adolescents are heavily influenced by social and cultural changes that are exposed to harmful environmental stimuli such as addictive; Therefore, the present study was conducted with the aim of investigating the causal model of adolescent vulnerability to addiction based on the sensitivity of sensory processing and brain-behavioral systems with the mediation of childhood trauma in the city of Mashhad. The present study was a descriptive correlation in terms of its practical purpose and the method of data collection. The statistical population of the research was all secondary school students of the second year of Mashhad in the academic year of 1402-1401. 228 students were selected by cluster sampling method. In order to collect data, Enisi's questionnaires for identifying people at risk of addiction, Aron's and Aron's sensory processing sensitivity, Carver's and White's brain-behavioral systems, and Bernstein et al.'s trauma questionnaire were used. The collected data were analyzed using structural equation modeling method and SPSS27 and Lisrel8.8 software. The results of the research showed that the sensitivity variables of sensory processing and behavioral brain systems have a direct and significant effect on vulnerability to addiction. The results related to the fit indices of the model also showed that childhood trauma can mediate the sensitivity of sensory processing and behavioral brain systems with vulnerability to addiction. Manuscript profile