The most important goal of health systems is improvement of quality, effectiveness and efficiency of health services. To achieve this goal, health care organizations should establish a proper structure for evaluating health information systems. Health information system evaluation is expected to identify the existing problems of the system through measuring specific indicators. The main objecti...

one of the most important number sequences in mathematics is fibonacci sequence. fibonacci sequence except for mathematics is applied to other branches of science such as physics and arts. in fact, between anesthetics and this sequence there exists a wonderful relation. fibonacci sequence has an importance characteristic which is the golden number. in this thesis, the golden number is observed ...

Following the emergence of environmental issues and corporate responsibility to environmental performance, guidelines, principles and rules for companies are developed, which companies publish their environmental reports. The main purpose of this paper is to analyze the status of environmental sustainability reporting and its relationship with the cost of equity in listed companies in Tehran St...

 Background: Error detecting is known as basis of patient safety improvement .With ethical and professional commitment providers for disclosing the error report, errors reporting among nurses is much less than the actual amount. The purpose of this study was to investigate nurse managers perspectives about reasons for not reporting medical errors in Firoozgar Hospital. Methods:This stu...