OBJECTIVE To review and summarize the current literature on transnasal esophagoscopy, and to compare information with conventional esophagoscopy. DATA SOURCES Medline (Ovid), book chapters. REVIEW METHODS A thorough review of the literature using the Medline database was performed with the following search terms: esophagoscopy, transnasal esophagoscopy, ultrathin endoscopy, and esophagoscop...

background: sulfur mustard (sm) has been considered as a carcinogen in the laboratory studies. however, its carcinogenic effects on human beings were not well discussed. the main purpose of our study is to assess carcinogenesis of sm following acute and/or chronic exposures in human beings. methods: the valid scientific english and persian databases including pubmed, web of science, scopus, ira...

abstract background: human dignity, as a fundamental human right and a moral obligation, has been emphasized in different fields of nursing. the aim of the present integrative review was to explore the nature of nurses’ human dignity in educational and clinical settings. materials and methods: a literature review was conducted on quantitative and qualitative research papers in english and persi...

| In this paper, recent progress of phase change memory (PCM) is reviewed. The electrical and thermal properties of phase change materials are surveyed with a focus on the scalability of the materials and their impact on device design. Innovations in the device structure, memory cell selector, and strategies for achieving multibit operation and 3-D, multilayer high-density memory arrays are des...

the motivation for this work is to propose a first thorough review of dough rheological models used in numerical applications. although many models have been developed to describe dough rheological characteristics, few of them are employed by researchers in numerical applications. this article reviews them in detail and attempts to provide new insight into the use of dough rheological models.