Consider a gas of noninteracting particles diffusing into a semi-infinite lattice, Z+×ZD−1, subject to exclusion of double occupancy. An exact closed set of equations can be obtained and solved (in closed form) for the single-site occupancies or densities. Equations for the n-site occupancies couple only to such functions for n and n-1 sites, as for an infinite lattice. Their analysis reveals t...

helicobacter pylori (h. pylori) is a spiral-shaped gram negative bacterium that naturally colonizes the human gastric epithelium. in recent years, large evidence has come to the literature strongly proposing causal link between h. pylori and extra gastric disorders. cardiovascular system is one of the extra gastric organs that can be affected by h. pylori infection. the first evidence suggestiv...

background recently there has been a significant increase in the number of systematic reviews addressing questions of prevalence. key features of a systematic review include the creation of an a priori protocol, clear inclusion criteria, a structured and systematic search process, critical appraisal of studies, and a formal process of data extraction followed by methods to synthesize, or combin...

background: it is hypothesized that poor zinc nutritional status is associated with an increased risk of esophageal cancer (ec), but current evidence is contradictory. since some factors may influence zinc absorption, its status may be better evaluated thorough biomarkers. the objectives of this study were to perform a systematic review on the association of zinc biomarkers with ec in observati...

papaver bracteatum lindly (papaveraceae) is an endemic species of iran which has economic importance in drug industries. the main alkaloid of the plant is thebaine which is used as a precursor of the semi-synthetic and synthetic compounds including codeine and naloxone, respectively. this systematic review focuses on main component of papaver bracteatum and methods used to determine thebaine. a...

High tibia osteotomy is a common procedure in orthopedic surgery. A precise overview on indications, patients selection, pre-operative planning, surgical technique, methods of fixation, and complications have been presented. This paper focused on the points that should be considered to achieve good long-term outcomes. High tibia osteotomy is a common procedure in orthopedic surgery. A precise o...

BACKGROUND AND AIM: Proper scientific reporting is necessary to ensure correct interpretation of study results by readers. Systematic reviews (SRs) are of critical importance in evidence-based dentistry. This study assessed the reporting quality of published dental SRs in Iran.METHODS: The PubMed and ISI electronic databases were searched to collect published Iranian dental SRs up to the end of...

Xylariaceous fungi are typically saprobes, but are also commonly isolated as endophytes and some species are pathogens. Two species of Lopadostoma (Xylariaceae, Xylariales) are reported for the first time from Iran. L. dryophilum was found from dead branches of Quercus sp. in East Azerbaiejan and L. fagi from dead branches of Fagus sp. in Ardabil province. Based on morphology and sequence data ...

objective herpes simplex virus (hsv), one of the most common sexually transmitted disease is a worldwide .this study aimed to prevalence of herpes simplex virus of pregnancy in iran. methods: we searched pubmed, scopus, ovid, science direct and national databases were searched: magiran, iranmedex and science information database (sid) up to october 2015.eventually, we included five studies that...

background : peptic ulcer is common and symptoms such as epigastria pain and heartburn, the results of various studies and aim of study was to evaluate the prevalence of gastric ulcers in the systematic review and meta-analysis is a method. materials and methods : 6 iranian papers in the range of 2002 to 2012 are selected using valid keywords in the sid, goggle scholar and elsevier databases an...