منابع مشابه
Time to Sputum Smear Conversion in Smear-Positive Pulmonary Tuberculosis Patients and Factors for Delayed Conversion
Pulmonary tuberculosis is a common infection worldwide. In the eastern part of Iran, fluctuations in tuberculosis prevalence are seen due to the migration of people from Afghanistan. The aim of this study was to evaluate the time of bacteriologic sputum conversion after treatment and affecting factors in those whose smear does not become negative.This study was carried out on 85 smear-positive ...
متن کاملUnderstanding silicate hydration from quantitative analyses of hydrating tricalcium silicates
Silicate hydration is prevalent in natural and technological processes, such as, mineral weathering, glass alteration, zeolite syntheses and cement hydration. Tricalcium silicate (Ca3SiO5), the main constituent of Portland cement, is amongst the most reactive silicates in water. Despite its widespread industrial use, the reaction of Ca3SiO5 with water to form calcium-silicate-hydrates (C-S-H) s...
متن کاملtime to sputum smear conversion in smear-positive pulmonary tuberculosis patients and factors for delayed conversion
pulmonary tuberculosis is a common infection worldwide. in the eastern part of iran, fluctuations in tuberculosis prevalence are seen due to the migration of people from afghanistan. the aim of this study was to evaluate the time of bacteriologic sputum conversion after treatment and affecting factors in those whose smear does not become negative. this study was carried out on 85 smear-positive...
متن کاملRisk factors for conversion of laparoscopic cholecystectomy.
BACKGROUND Conversion during laparoscopic cholecystectomy has adverse effects on operating time, postoperative morbidity and hospital costs. Identifying risk factors for conversion is thus important to help surgeons to plan and counsel the patient and arranging operating schedules accordingly. This study evaluated retrospectively preoperative and intraoperative risk factors for conversion in 90...
متن کاملMaterial-specific Conversion Factors for Different Solid Phantoms Used in the Dosimetry of Different Brachytherapy Sources
Introduction Based on Task Group No. 43 (TG-43U1) recommendations, water phantom is proposed as a reference phantom for the dosimetry of brachytherapy sources. The experimental determination of TG-43 parameters is usually performed in water-equivalent solid phantoms. The purpose of this study was to determine the conversion factors for equalizing solid phantoms to water. Materials and Methods T...
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ژورنال
عنوان ژورنال: Annals of the New York Academy of Sciences
سال: 1955
ISSN: 0077-8923,1749-6632
DOI: 10.1111/j.1749-6632.1955.tb35356.x