منابع مشابه
Dual Nature of Acid-Fastness **
Acid-fastness is usually defined by the Ziehl-Neelsen technique: staining in carbol-fuchsin, differentiation in HCl-alcohol, and counterstaining in methylene blue.8 As a result, acid-fast substances are red, non-acid-fast materials, blue. Some authors have felt that this property of differential staining resided in one specific type of compound, the mycolic acid type of long-chain fatty acid fo...
متن کاملThe Destruction of Acid-Fastness of the Tubercle Bacillus by an Autolytic Process.
There are several articles in the literature dealing with the subject of autolysis of the tubercle bacillus. AMcJunkin (1923) dehydrated living tubercle bacilli in 95 per cent ethyl alcohol for two minutes, suspended the microorganisms in oleic acid which contained a few drops of water, and incubated the mixture at 37°C. After several days, only a limited number of bacilli retained their acid-f...
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in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
15 صفحه اولSuccessful Software Is an Epic Production
F conception to completion, good software requires a more-than-just-code mindset. Good software is the product of the successful execution of hundreds of sound project and process practices. The list, which requires strict adherence to, might seem staggering to the casual observer: documented policies and procedures; requirements management; detailed project planning; system design; configurati...
متن کاملAcid-Fastness of Histoplasma in Surgical Pathology Practice
BACKGROUND Histoplasmosis (HP) is diagnosed by visualizing intracellular microorganisms in biopsy and/or culture. Periodic-acid Schiff (PAS) and Gomori methenamine silver (GMS) staining methods are routinely used for identification. The acid-fast property of Histoplasma was identified decades ago, but acid-fast staining has not been practiced in current surgical pathology. Awareness of the acid...
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ژورنال
عنوان ژورنال: Nature
سال: 1929
ISSN: 0028-0836,1476-4687
DOI: 10.1038/123322a0