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  Protozoa

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  Decision making

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  Coenzyme A

  Coenzyme A (CoA, CoASH, or HSCoA) is a coenzyme, notable for its role in the synthesis and oxidation of fatty acids, and the oxidation of pyruvate in the citric acid cycle. All sequenced genomes encode enzymes that use coenzyme A as a substrate and around 4% of cellular enzymes use it (or a...

• Spiroptera carcinoma

  Gongylonema neoplasticum is a species of nematode. It was previously known as Spiroptera carcinoma. Under this name, it was the basis of the research that won Johannes Fibiger the 1926 Nobel Prize in Physiology or Medicine. His research indicated that nematode infection led reliably to gastric...

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  Kuru is an incurable degenerative neurological disorder (brain disease) that is a type of transmissible spongiform encephalopathy found in humans. Kuru is believed to be caused by prions and is related to Creutzfeldt-Jakob disease. It is best known for the epidemic that occurred in Papua New Guinea...

• Femtochemistry

  Femtochemistry is the science that studies chemical reactions on extremely short timescales, approximately 10 seconds (one femtosecond, hence the name). In 1999, Ahmed H. Zewail received the Nobel Prize in Chemistry for his pioneering work in this field. Zewail’s technique uses flashes of laser...

• Nucleic acid

  A nucleic acid is a macromolecule composed of chains of monomeric nucleotides. In biochemistry these molecules carry genetic information or form structures within cells. The most common nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleic acids are universal in living...

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  Lupus vulgaris are painful cutaneous tuberculosis skin lesions with nodular appearance, most often on the face around nose, eyelids, lips, cheeks and ears. The lesions may ultimately develop into disfiguring skin ulcers if left untreated. In the 19th century, the chronic and progressive nature of...