A new co-modeling technique dedicated to RF module design and optimization is described. This approach is based on combined EM, circuit, and artificial neural network simulations. Generic segments are parameterized in geometry, physical properties and frequency by analytical models and are integrated into commercial circuit software. This comodeling combines speed and flexibility of circuit simulators and accuracy of EM-based simulators.

Organizational citizenship behaviors help to make effective communication within the organizations, save organizational resources, and eliminate the need for more formal and costly control methods. Also, organizational citizenship behaviors benefit both the organization and the employees as well, by reducing the rate of turnover of employees, and raising the quality and efficiency of services. Therefore, the research aims to identify the extent to which some four-and five-star hotels in Jordan are applying the dimensions of organizational citizenship behaviors. The research found that there is no difference among the employees about the importance of organizational citizenship behaviors regarding (departments, age group, educational level, number of years of experience), and the research recommends hotels to provide the requirements and steps necessary to apply organizational citizenship behaviors, provide sufficient information about it in hotels and take into account the different capacities of employees.

This research aims at investigating the effect of Spiritual Leadership on enhancing organizational citizenship behavior at Aqaba hotels in Jordan. Questionnaires were distributed among the employees of four and five-star hotels at Aqaba. The collected data were statistically processed and analyzed by SPSS. The results showed that there was a positive relationship between spiritual leadership and organizational citizenship behavior. The research recommends that hotels in Jordan need to adopt the concept of spiritual leadership with its various dimensions in order to develop organizational citizenship behavior among the employees effectively.

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