We study the expressiveness and performance of full-text search languages. Our motivation is to provide a formal basis for comparing full-text search languages and to develop a model for full-text search that can be tightly integrated with structured search. We design a model based on the positions of tokens (words) in the input text, and develop a full-text calculus (FTC) and a full-text algeb...

Background: No previous study has investigated the computed tomography (CT) characteristics of follicular thyroid adenoma (FTA) and follicular thyroid carcinoma (FTC). This study aimed to compare the CT features of FTA and FTC. Methods: Eighty-seven consecutive patients with FTA or FTC that underwent preoperative neck CT from January 2006 to December 2013 were included. In each case, single rad...

abstract although flourishing research has been devoted to research on article abstracts, more studies are needed to unpack the relationship between rhetorical moves and their associated linguistic and rhetorical features (e.g., metadiscourse). to underpin this relationship, the current study analyzed a total of 60 research article abstracts written in english by two cultural groups in three di...

maruf al rosafi is one of the four great iraqi poets. the other three are al zahavi, al kazemi and al shabibi. he was born in baghdad, iraq in 1875. he had learned reading- writing and memorizing quran in traditional iraqi schools and then entered the army college. he could not deal with the courses so had started self studies and went to religious schools. his instructor, alus had motivated hi...

a historical novel is a form of story-like narrative which is a combination of story and history. accordingly, we cannot easily comment whether, within this framework, it is the history that isbeing focused on by the author—as all the story’s elements are employed in the service of the historian—or history simplyplays an incidental role at the back stage of the story. the best exampleof the mix...

introduction: recent evidence has indicated that statins can reduce the incidence of both supraventricular and ventricular arrhythmias with various mechanisms. the primary goal of the present study was to determine direct protective role of simvastatin in modifying concealed conduction and the zone of concealment in a simulated model of atrial fibrillation (af) in an isolated atrioventricular (...

abstract bachground and objectives: the ability of adherence to the surface of host cell is very critical in the colonization of microbial pathogens. it has been revealed that e. coli strains that infect urinary tracts have different fimbrea such as i, s, fic, dr, and fimbrial adhesions. material and methods: in this study, 363 urine samples were obtained from patients with urinary tract infect...

objective: leukocyte adhesion deficiency(lad) is a scarce, autosomal recessive inherited disorder . lad-i which is the most common type occurs due to mutations on the cd18 gene. this mutation leads to absence or severe reduction of leukocyte cell surface expression of ß2 integrin molecules which are necessary for the adhesion of the leukocytes to the endothelial cells, transendothelial migratio...

abstract background: the study was established to define the prevalence of neonatal microcytosis and to estimate the incidence rate of alpha-thalassemia as its leading cause, in tehran, iran. materials and methods: overall, 800 neonates were selected from two populations of newborns and admitted neonates. three hundred and sixty-one cord blood samples were obtained from deliveries in mahdieh ho...