OBJECTIVE To compare the efficacy and safety of azithromycin dihydrate monotherapy with those of a combination of cefuroxime axetil plus erythromycin as empirical therapy for community-acquired pneumonia in hospitalized patients. METHODS Patients were enrolled in a prospective, randomized, multicenter study. The standard therapy of cefuroxime plus erythromycin was consistent with the American...

background: this study aims to assess the frequency of some hygienic behaviors that is, tooth brushing and hand‑washing, in iranian school students at national level. methods: this nationwide study was conducted in 2011-2012 among 14,880 elementary, secondary and high school students who were selected by random cluster stratified multistage sampling from 30 provinces in iran. we used the global...

We present an access method for timeslice queries that reconstructs a past state s(t) of a time-evolving collection of objects, in O(log,, n + Is(t)l/b) I/O ‘8, where Is(t)1 denotes the size of the collection at time t, n is the total number of changes in the collection’s evolution and b is the size of an I/O transfer. Changes include the addition, deletion or attribute modification of objects;...

An Archival Repository reliably stores digital objects for long periods of time (decades or centuries). The archival nature of the system requires new techniques for storing, indexing, and replicating digital objects. In this paper we discuss the specialized indexing needs of a write-once archive. We also present a reliability algorithm for effectively replicating sets of related objects. We de...

liver secretes a large range of very low density lipoprotein (vldl) particles of different sizes and svedberg flotation rates (sf). in plasma vldl is converted to low density lipoprotein (ldl)which in turn plays an important role in the development of atherosclerotic diseases; however,triglyceride (tg) rich vldl1 has been shown to be more deleterious than cholesteryl ester (ce) rich vldl2. ther...

background and purpose: hand contamination is an important factor of infection transmission from dental staff to patients and vice versa. the aim of this study was to determine the effect of hand washing training on dental students’ knowledge, attitude, and clinical practice at the shahid beheshti university of medical sciences dental school in 2010. methods: this quasi-experimental study was c...

Abstract To reduce the use of herbicides in agriculture, there is an urgent need to look for cost-effective and environmentally friendly non-chemical methods control weeds field crops. Plant by-products could be exploited directly as plant residues or indirectly extracts weed control. Thus, objective this study was evaluate effectiveness several wastes controlling sugar beet ( Beta vulgaris sub...