background: the increased recognition of ethical problems has contributed to the resurgence of ethics in relation to health care, and to the emergence of medical ethics as a new collaborative discipline in the world. the growing trends in biomedical technologies have been associated with increasing discussions about ethical aspects of the new knowledge in different societies. advances in geneti...

In 2009, the American Thoracic Society (ATS) funded an assembly project, Palliative Management of Dyspnea Crisis, to focus on identification, management, and optimal resource utilization for effective palliation of acute episodes of dyspnea. We conducted a comprehensive search of the medical literature and evaluated available evidence from systematic evidence-based reviews (SEBRs) using a modif...

with the eight sassanians reliefs, naghsh-e rustam in marvdasht is a prominent complex safeguarding a complete collection of the sassanian period. seven of these reliefs have been repeatedly the subject of investigations thanks to their relatively better conditions. the fifth relief, however, has not yet been studied due to their damaged status. it depicts the full-face portrait of a sassanid k...

Authors had reported before two dual Boolean algebras to understand the underlying logic of the genetic code structure. In such Boolean structures, deductions have physico-chemical meaning. We summarize here as these algebraic structures can help us to describe the gene evolution process. Particularly in the experimental confrontation has been found that most of the mutations of several protein...

Post-registration studies describe parameters of real-life clinical practice such as the treated population, conditions of treatment initiation, treatment duration, adherence, associated benefits/risks as well as the impact on treatment strategies, healthcare procedures and on public health. The results of these studies are used in particular for re-evaluation, re-registration or in application...

hospital ethics committees (hecs) help clinicians deal with the ethical challenges which have been raised during clinical practice. a comprehensive literature review was conducted to provide a historical background of the development of hecs internationally and describe their functions and practical challenges of their day to day work. this is the first part of a comprehensive literature review...