m. mobaraki

Best cancer treatment is the one which reduces the tumor’s density in minimum time with less side effects, considering the input limitations. In this paper, a tracking controller was designed to achieve the mentioned objectives, simultaneously. An ordinary differential equations (ODEs)-based mathematical model of a human’s body under chemovirotherapy was selected, which includes the uninfected and infected tumor cells, free viruses, immune cells, and a chemotherapeutic drug. Stability analysis was used to determine the sensible equilibrium points. For tracking purposes, a servo controller based on the entire eigenstructure assignment (EESA) approach was applied to the model, continuously and discretely. By regulating the command input properties, optimal treatment duration with limited drug dosage and virus dosage was determined. The results indicate that the discrete controller performs smoother than the continuous controller. In the discrete controller, optimum time interval for the injection of drugs and viruses was determined to propose an optimal treatment schedule.

Gender inequality is one of the challenges that can be found in most societies and is affected by a variety of factors. The main objective of this study is to compare the perception of gender inequality between mothers and daughters and to examine social factors influencing that perception. The study was a survey and the population was all married women aged 30 - 64 years and 15-19-year-old daughters in the city of Yazd. The sampling was based on a multistage probability method and the sample size was 488 people. The theoretical framework is based on the theory of gender socialization, gender stratification, liberal feminism, and Blood and Wolf's theory of resources. The findings show that the relationship between gender socialization, gender role-play, gender ideology, gender stereotyped-beliefs, gender norms, decision-making based on the framework of family control, and a sense of gender inequality is positive and significant.