a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...

Introduction: The notion of electronic mental health care is suggested in today's world. With the aid of this care, people's talents are no longer limited by time or location, and those in need of mental health care can get these services by downloading and installing software on their mobile devices. The Cognogene application software has been created to provide electronic mental health servic...

Introduction: Mobile learning is a new way of modern teaching method and a subset of e-learning that refers to a change in thinking about the design and planning of learning goals and environments. The purpose of this study was to investigate the attitude of students of the Medical Sciences School toward the mobile phone in educational activities and its usage. Methods: 150 students of Mashhad...

Introduction: The notion of electronic mental health care is suggested in today's world. With the aid of this care, people's talents are no longer limited by time or location, and those in need of mental health care can get these services by downloading and installing software on their mobile devices. The Cognogene application software has been created to provide electronic mental health servic...

The increasing penetration rate of mobile phone, with specific characteristics of this medium, such as almost everywhere with the audience, has attracted companies' attention to it as an advertising channel. Mobile devices facilitate highly customized marketing communication in terms of person, time location and context so numbers of companies that use this medium for communicating with their c...