Volume 7, Issue 2 (Spring 2019)
Abstract
Aims: Food safety is a public health concern due to its great impact on the economy and health of the people in developing countries. Since food preparation is the final line of defense against foodborne diseases; women need to take extra precaution to reduce the chances of home prepared food contamination. This study examined the applicability of the trans-theoretical model of change to assess readiness to increase food safety among housewives’ women.
Materials & Methods: The present cross-sectional study was carried out among 181 households’ women in 2017. Data were collected using a questionnaire consisted of food safety characteristics based on the stage of change. Data were analyzed by SPSS 24 for descriptive analysis, normality test, correlation, and multiple logistic regression analysis.
Findings: Mean age (SD) of participants was 38.68±8.5 years old. 6.1% of participants were in the pre-contemplation stage, 21.0% in the contemplation stage, 23.2% in the preparation stage, 16.6% in the action stage, and 33.1% in the maintenance stage. Overall stage of change was not significant association with age, educational status and household income.
Conclusions: Findings of this study may help in planning health intervention programs for housewives’ women for their improvement of knowledge, attitude and practice towards foodborne diseases and food safety. We suggested an intervention based on the Trans-theoretical Model for housewives’ women to promote food hygiene, at least in .
Volume 12, Issue 4 (Fall 2024)
Abstract
Aims: This study was designed to evaluate the impact of an educational intervention grounded in risk perception theories aimed at the prevention and management of common non-communicable diseases in an urban population.
Materials & Methods: The study employed a semi-experimental design with two groups (intervention and control), utilizing a pre- and post-test approach. It incorporated protection motivation theory and the health belief model within an urban population in Hashtruod, focusing on non-communicable disease prevention and care in 2023. The participant population consisted of 426 individuals, with 213 assigned to the intervention group and 213 to the control group, all randomly selected from the comprehensive health centers in Hashtrood. A questionnaire assessing personal risk perception regarding non-communicable diseases was used, which included five dimensions: Perceived sensitivity, perceived barriers, perceived benefits, perceived self-efficacy, and behavioral intentions to change. The educational intervention, designed to enhance personal risk perception, was implemented over two sessions within a two-week period for the intervention group.
Findings: The intervention based on risk perception theories significantly improved the intervention group's perceived sensitivity, perceived severity, perceived benefits, self-efficacy, and guidance for action.
Conclusion: An educational intervention based on the health belief model and protection motivation theory effectively enhanced awareness constructs, behavioral intentions, perceived sensitivity, perceived severity, perceived benefits, perceived barriers, self-efficacy, response self-efficacy, and guidance for adopting healthy behaviors.
Hassan Ali Jahangiry, Ali Jahangiri,
Volume 16, Issue 12 (2-2017)
Abstract
Topology optimization of the heat transfer quality in two-dimensional heat conduction problem at enclosure as one of the typical thermo-physical problems has always been quite important. In this paper a level set-based topological optimization procedure of two-dimensional heat conduction problem include point and speared thermal on computational domain load using finite elements method is developed. In level-set method, all structural boundaries are parameterized by a level of dynamic implicit scalar function of higher order. Changes of this function can easily model the detachment and attachment of dynamic boundaries in topology procedures. The same shape functions of finite elements analysis are employed to approximate the unknown temperatures and geometry modeling of the design domain. The objective function is to minimize thermal power capacity and sensitivity analysis on some heat conduction problems is investigated to deal with the topology optimization using level-set method with the finite elements scheme. Finally, topology optimization results of 3 heat conduction problems under both include point and spread thermal load cases are presented to demonstrate the validity of the proposed method. The proposed method lead to a significant reduction of the computational cost and time and it can be applied to a wide range of topology optimization problems arising from the heat transfer.
