نتایج جستجو برای: skc
تعداد نتایج: 112 فیلتر نتایج به سال:
This article describes laboratory testing of four passive diffusive samplers for assessing indoor air concentrations of volatile organic compounds (VOCs), including SKC Ultra II, Radiello®, Waterloo Membrane Sampler (WMS) and Automated Thermal Desorption (ATD) tubes with two different sorbents (Tenax TA and Carbopack B). The testing included 10 VOCs (including chlorinated ethenes, ethanes, and ...
مقدمه: با توجه به تولید آلاینده های گازی و آیروسولی فراوان توسط صنعت چاپ و تکثیر، ارزیابی کیفیت هوا در داخل و خارج این مراکز در سطح شهر خرم آباد مورد بررسی قرار گرفت. مواد و روش ها: در یک مطالعه توصیفی، پنج آلاینده گازی از آلاینده های معیار(co،no ،no2 ،so2 وo3 ) و ترکیبات آلی فرار مورد سنجش قرار گرفت. در کل 360 نمونه از هوای داخل و خارج مراکز چاپ و تکثیر در دو فصل تابستان و زمستان گرفته شد. ن...
High-speed dental instruments produce aerosol and droplets. The objective of this study was to evaluate droplet production from a novel electric micromotor handpiece (without compressed air coolant) in real world clinical settings. 10-minute upper incisor crown preparations were performed triplicate an open-plan clinic with mechanical ventilation providing 3.45 changes per hour. A 1:5 ratio whi...
استرپتوکیناز (sk) یک داروی ویژه و موثر در درمان ترومبولایتیک سکته های حاد قلبی می باشد. علی رغم وجود محدودیت های قابل توجه، به دلیل قیمت نسبتا پایین استرپتوکیناز، این پروتئین هنوز یک داروی انتخابی به ویژه در کشورهای کم درآمد می باشد. در بررسی حاضر، تولید و تخلیص استرپتوکیناز با استفاده از وکتور بیانی pet21a(+) مورد ارزیابی قرار گرفته است. برای این منظور ابتدا پلاسمید pet21a(+) که حاوی ژن skc (...
introduction: today, have been approved scientifically relationship between presence of asbestos fibers in the human respiratory area and malignant diseases such as lung advanced fibrosis (asbestosis), gastrointestinal, lung and laryngeal cancers. the aim of this study was the determination of asbestos fibers concentration in yazd city’s air in the summer of 2015. methods: this is a descriptive...
background and aims: the aim of this study was to determine the virulence and antibiotic resistance properties of streptococcus agalactiae (s. agalactiae) and streptococcus uberis (s. uberis) isolated from the ruminant’s sub-clinical mastitic milk in iran. materials and methods: positive samples in the cmt test were cultured and s. agalactiae and s. uberis have been identified using biochemical...
Benzene, Toluene, Ethyl Benzene and Xylene are volatile organic compounds (VOCs) with approximately similar physical and chemical characteristics. Benzene and Ethyl-benzene are known carcinogen as well as they affect the circulatory, nervous, and reproductive and respiratory systems. Toluene and Xylene also damage the nervous and reproductive systems. The main purpose of this study is to determ...
Introduction: Today, have been approved scientifically relationship between presence of asbestos fibers in the human respiratory area and malignant diseases such as lung advanced fibrosis (Asbestosis), gastrointestinal, lung and Laryngeal cancers. The aim of this study was the determination of asbestos fibers concentration in Yazd city’s air in the summer of 2015. Materials and Methods: ...
Indoor air quality has become increasingly important as we live in a society where the majority of our time is spent indoors. Specific attention has been drawn to airborne fungal spores as a factor affecting indoor air quality. This study targeted shortcomings of other studies by utilizing long-term air sampling and total fungal spore enumeration to determine associations between health outcome...
Breath analysis has long been recognized as a potentially attractive method for the diagnosis of several diseases. The main advantage over other diagnostic methods such as blood or urine analysis is that breath analysis is fully non-invasive, comfortable for patients and breath samples can be easily obtained. One possible future application of breath analysis may be the diagnosing and monitorin...
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