introduction: to promote the processes of providing medical services, patient's rights and establishing uniformity in treatment policy, the evaluation quality indexes were communicated to all general hospitals in 2002. this study evaluates the implementation of managed care guideline before their communication as evaluation quality indexes of hospitals and their relationship with communication ...

This paper deals with coexistence issues that may arise for Wireless Body Area Networks (WBANs) operating at the 2.45 GHz ISM band. Two different sources of interference are considered: IEEE 802.11 (Wi-Fi) and IEEE 802.15.4 (Zigbee). Firstly, these interfering networks are characterized both in the frequency and in the time domains. Then, the coexistence of a WBAN with these interfering systems...

We present a Shack-Hartmann (SH) centroid detection algorithm capable to measure in presence of strong noise, background illumination and spot modulating signals, which are typical limiting factors of traditional centroid detection algorithms. The proposed method is based on performing a normalization of the SH pattern using the spiral phase transform method and Fourier filtering. The spot cent...

Predation risk is often associated with group formation in prey, but recent advances in methods for analysing the social structure of animal societies make it possible to quantify the effects of risk on the complex dynamics of spatial and temporal organisation. In this paper we use social network analysis to investigate the impact of variation in predation risk on the social structure of guppy ...

Aim: Few nuclear cardiology surveys were published in the literature, mostly from developed countries. The aim of this study is to perform a nuclear cardiology survey in Iran. This may lead to better decision making and programming. Methods and Materials: A questionnaire was sent by mail or e-mail to all nuclear medicine centers in Iran asking for details of nuclear cardiology practice in...