this study was designed to investigate the occupational stressors on teachers and their evaluation in schools firoozkooh city. in this study, statistical sample is 174 male and female teachers of schools in the education of firoozkooh so that they are selected using quota sampling and citing morgan as an example. in this study, data were analyzed using independent t-test. results of this study ...

In California, more than 1.3 million adolescents (38%) do not participate in physical education (PE) at school, and this rate increases dramatically with age, from just 5% at age 12 to 77% at age 17. In addition, only 19% of teens meet current physical activity recommendations. Participation in PE at school is associated with more overall physical activity. Policies that promote more opportunit...

In his famous article on “The nature of the firm”, Ronald Coase (1937) sought to answer the question why firms exist, why there are many firms and not just one, why people do not work as individual producers but rather in firms. He suggested that transaction costs could explain the boundaries of the firm and that suggestion later on gave rise to an abundant literature on vertical integration. T...

This paper deals with the application of fourth kind Chebyshev wavelets (FKCW) in solving numerically a model of HIV infection of CD4+T cells involving Caputo fractional derivative. The present problem is a system of nonlinear fractional differential equations. The goal is to approximate the solution in the form of FKCW truncated series. To do this, an operational matrix of fractional integrati...

Implications of Complex Systems and Converging Technologies for Human Performance The ability of science and technology to augment human performance depends on an understanding of systems, not just components. The convergence of technologies is an essential aspect of the effort to enable functioning systems that include human beings and technology; and serve the human beings to enhance their we...

This study aims to contribute to a more effective creation and management of slogans in the context of branding and advertising, testing which factors might influence the brand slogan recall and recognition. An empirical study was conducted, via a self-administered original questionnaire, applied to a sample of 156 elements, analyzing the recall and recognition rates for twenty-nine slogans, fr...

Interoperability standards play an important role in system integration and information sharing in e-Government environment. But the development and establishment of these standards do not depend on technological aspects only. System integration and information sharing do not mean just enable data interchange but, mainly, integrate processes and transactions. In this scenery, other variables fr...

a r t i c l e i n f o Keywords: Software and hardware quality assurance Airborne software and hardware Safety certification DO-178B DO-254 To ensure the safety of avionic systems, civil avionic software and hardware regulated by certification authorities must be certified based on applicable standards (e.g., DO-178B and DO-254). The overall safety integrity of an avi-onic system, comprising sof...