in this paper we introduce the concept of entropy operator for continuous systems of finite topological entropy. it is shown that it generates the kolmogorov entropy as a special case. if $phi$ is invertible then the entropy operator is bounded with the topological entropy of $phi$ as its norm.

conclusions it is suggested that the steward of health in iran, the ministry of health, develops an appropriate infrastructure and finally puts a high priority on the implementation of the health information management system for elderly health sector in iran. background there are increasing change and development of information in healthcare systems. given the increase in aging population, man...

stewardship is not a new concept for public policy, but has not been used to its optimum by the health policy-makers. although it is being practiced in most successful models of health system, but the onus to this function is still due till date. lately, few experts in world health organization (who) have realized its importance and have been raising the issue at different platforms to pursue t...

background about one third of unwanted reported medication consequences are due to medication errors, resulting in one-fifth of hospital injuries. objectives the aim of this study was determined formal and informal medication errors of nurses and the level of importance of factors in refusal to report medication errors among nurses. patients and methods the cross-sectional study was done on the...

background: iodine deficiency disorders (idd) have been recognized as a major public health problem worldwide. consequences of idd include goiter, hypothyroidism, and intellectual disability followed by retarded growth and development of the brain. this report aimed to determine the state of idd in fars province, south of iran. methods: in this study, we gathered data from all scientific papers...

the purpose of the current research is investigating the phenylalanine removal by using magnetic nanoparticles (fe3o4) from water samples. the effect of ph, contact time and phenylalanine concentration on phenylalanine adsorption efficiency by magnetite nanoparticles are studied in a batch system. transmission electron microscopy (tem), x-ray diffraction patterns (xrd) and fourier transform inf...