نتایج جستجو برای: laboratory techniques
تعداد نتایج: 889457 فیلتر نتایج به سال:
Foodborne diseases represent a substantial public health concern in the United States. CDC's Foodborne Diseases Active Surveillance Network (FoodNet) monitors cases reported from 10 U.S. sites* of laboratory-diagnosed infections caused by nine enteric pathogens commonly transmitted through food. This report describes preliminary surveillance data for 2016 on the nine pathogens and changes in in...
abstract introduction: impression making is one of the most important steps in fixed prosthodontics. due to contra-dictory opinions on the issue of the accuracy of silicone impression material as a function of technique, this study was carried out to assess the dimensional accuracy of master casts made by rapid silicone material as a function of three impression techniques: with 2mm space, with...
The object of this study was to find a suitable staining method for P.carinii. This parasite is not easily stained and clinical signs are not specific for the diagnosis of P.carinii pneumonia and therefore optimal laboratory methods for observing the organism are extremely valuable. In all 17 new conventional and modified staining techniques were used on lung impression smears and tissue sectio...
the early computer-aided design/computer-aided manufacturing (cad/cam) systems were relied exclusively on subtractive methods. in recent years, additive methods by employing rapid prototyping (rp) have progressed rapidly in various fields of dentistry as they have the potential to overcome known drawbacks of subtractive techniques such as fit problems. rp techniques have been exploited to build...
human infection with the coccidia parastite, isospora belli is relatively uncommon. human isosporiasis in iran was first reported by hadjian in 1961. 5 yearly, about 200 stool samples have been examined by direct and formol-ether concentration techniques in the protozoology unit, school of public health, tehran university of medical sciences. in addition to the common protozoal and helminthic i...
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