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Biological Oxygen Demand (BOD): Wastewater Treatment Methods for the Reduction of BOD

Biological Oxygen Demand (BOD) It is also known as Biochemical Oxygen Demand (BOD). It is defined as the amount of oxygen consumed during the ...
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Acid-Fast Staining: Purpose, Principle, Procedure and Observation

There are certain bacteria which cannot be stained by Gram's method. In 1882, Paul Ehrlich developed a method of staining such type of bacteria. This ...
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Gram Staining: Purpose, Principle, Procedure and Observation

In 1883 (originally published in 1884), Dr. Hans Christian Gram (1853-1938) developed a technique for the classification of bacteria into two broad ...
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EXAMINATION OF SPUTUM

Sputum examination refers to the laboratory examination or test of the material or substance coughed out from the lungs, bronchi, trachea, and ...
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EXAMINATION OF STOOL

Waste products discharged from the digestive tract are composed of up to 75% water, food which is digested but not absorbed, indigestible residue, ...
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Diagnosis of Acute Myelocytic Leukemia (AML) and Acute Lymphocytic Leukemia (ALL)

What is acute leukemia? It is defined as malignant clonal hematopoietic stem cell disorders characterized by the rapid increase in the number of ...

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