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Há 1 dia · v. t. e. A microorganism, or microbe, [a] is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells . The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from sixth century BC India.
Há 2 dias · Microscopy of tuberculous epididymitis. H&E stain. TB infection begins when the mycobacteria reach the alveolar air sacs of the lungs, where they invade and replicate within endosomes of alveolar macrophages. Macrophages identify the bacterium as foreign and attempt to eliminate it by phagocytosis.
Há 3 dias · FISH involves unwinding of the double helix structure and binding of the DNA of all probes attached to a fluorescent molecule with a specific sequence of sample DNA, which can be visualized under the fluorescent microscope.
Há 2 dias · Lichen identification uses growth form, microscopy and reactions to chemical tests. The outcome of the "Pd test" is called "Pd", which is also used as an abbreviation for the chemical used in the test, para-phenylenediamine.
Há 5 dias · Microscopy of urine sediment is a simple and inexpensive, but often overlooked procedure. With practice, it can contribute to swift, correct diagnosis of suspected kidney and urinary tract disease.
- Heidi Andersen, Ludvig N W Daae, Tale Norbye Wien
- 2014
Há 4 dias · Field Emission Scanning Electron Microscopy (FESEM) is an improved version of SEM method with higher resolution imaging capability of micro and nano structures.
Há 4 dias · Ruska developed a scanning electron microscope in the 1940s. It utilized electromagnetic lenses to focus scanning electron beam on the target surface and then collected scattered electrons, containing information on the sample topography and structure.
