the full annealing aa6061 aluminum alloy was subjected to severe plastic deformationvia the combination of equal channel angular pressing (ecap) and cold rolling (cr) in order torefine its microstructure and to improve its mechanical properties. according to the results of hotand cold tensile tests, the combination of ecap and cr significantly affected the final strengthand ductility of studied...

BACKGROUND Random errors in measurement of a risk factor will introduce downward bias of an estimated association to a disease or a disease marker. This phenomenon is called regression dilution bias. A bias correction may be made with data from a validity study or a reliability study. AIMS AND METHODS In this article we give a non-technical description of designs of reliability studies with e...

background: we evaluated the efficacy of valproate plus risperidone versus valproate plus lithium combination in the treatment of acute mania. methods: in 2-week, randomized, double-blind, parallel group study, 46 acute manic patients according to dsm-iv criteria were randomly assigned to receive combination of valproate 20 mg/ kg/day plus risperidone 2-4 mg/day (n=23) or lithium600-1200 mg/day...

A pilot study asks whether something can be done, should the researchers proceed with it, and if so, how. However, a pilot study also has a specific design feature; it is conducted on a smaller scale than the main or full-scale study. In other words, the pilot study is important for improvement of the quality and efficiency of the main study. In addition, it is conducted in order to assess the ...

patients and methods this was a retrospective study including 207 consecutive patients who were enrolled using computerized hepatocellular carcinoma database consisting of 105 patients who underwent combined tace with rfa, and 102 patients who underwent tace alone with long-term follow-up. results the complete remission rate was meaningfully higher in the combination group (97.1%, 102/105) than...

background and aims: immunosuppressive regimens are a key component for successful kidney transplantation. this systematic review aimed to assess the efficacy and safety of combination therapy of everolimus with tacrolimus in kidney transplantation recipients. methods: results were limited to english-language articles. trials where recipients received another regimen were excluded. the cochrane...

mycoplasmosis caused by mycoplasma has immensely reduced the performance of commercial animal husbandry, along with prevalence and increase of drug resistance in mycoplasma, thus new agents and therapies are urgently needed. triclosan is a broad spectrum antimicrobial agent with a favorable safety profile. in the present study, we tested the antimycoplasmal activity of triclosan alone, as well ...

The increasing role of accelerator mass spectrometry (AMS) in biomedical research necessitates modernization of the traditional sample handling process. AMS was originally developed and used for carbon dating, therefore focusing on a very high precision but with a comparably low sample throughput. Here, we describe the combination of automated sample combustion with an elemental analyzer (EA) o...

abstract introduction & objective: enuresis is defined as involuntary voiding. it is a socially disruptive and stressful condition which affects around 15% of five years old children and up to 1% of adults. aim the aim of this study was to assess the efficacy of desmopressin (nasal spray) and oxybutinin combination therapy in treatment of patients with primary nocturnal enuresis that were resis...