Category: Y
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Yang Huang
One of two types of jaundice. Huang means “yellow.” Yang Huang is caused by damp–heat of Liver and Gallbladder and commonly presents with a bright tangerine yellow skin complexion. Additional presentations include dark yellow urine, nausea, vomiting, poor appetite, constipation, abdominal bloating, and pain in the hypochondriac region.
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Yellow fever
Is a viral disease that is transmitted to humans through the bite of infected mosquitoes. Illness ranges in severity from an influenza-like syndrome to severe hepatitis and hemorrhagic fever. Yellow fever virus (YFV) is maintained in nature by mosquitoborne transmission between nonhuman primates. A tropical epidemic disease caused by mosquito-borne viral infection. A viral disease…
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Yaws
An infectious tropical infection of the skin, bones and joints caused by the spirochete bacterium Treponema pertenue, characterized by papules and pappiloma with subsequent deformation of the skins, bone and joints; also called framboesia. An infectious, nonvenereal tropical disease caused by Treponema pertenus. It is characterized by an initial lesion (the motheryaw), followed by further…
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Young’s modulus
Describes the rigidity or stiffness of a material, usually given the symbol E. It is a measure of elasticity equal to the ratio of the stress acting on a substance to the strain produced. A higher modulus (GPa, psi) signifies a greater rigidity or stiffness to the material. Also called modulus of elasticity.
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Yeast
Classified in the kingdom Fungi, these eukaryotic microorganisms are mostly unicellular but can become multicellular through the formation of pseudohyphae or strings of connected budding cells. Yeast can reproduce by mitosis, asymmetric division or budding. Yeast can become pathogenic in the body, including the oral cavity, especially in people who are immunocompromised through disease or…