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H. Harris, publishing in the British Journal of Dermatology in 1947, wrote Native Americans have the least body hair, Han Chinese people and black people have little body hair, white people have more body hair than black people and Ainu have the most body hair. [18] Anthropologist Arnold Henry Savage Landor described the Ainu as having hairy ...
Pubic hair (or pubes / ˈ p j uː b iː z /, / p j uː b z /) is terminal body hair that is found in the genital area and pubic region of adolescent and adult humans. The hair is located on and around the sex organs , and sometimes at the top of the inside of the thighs , even extending down the perineum , and to the anal region .
The main chemical reaction effected by the thioglycolate is: 2 HSCH 2 CO 2 H (thioglycolic acid) + R-S-S-R → HO 2 CCH 2-S-S-CH 2 CO 2 H (dithiodiglycolic acid) + 2 RSH . Chemical depilatories contain 5–6% calcium thioglycolate in a cream base (to avoid runoff). Calcium hydroxide or strontium hydroxide maintain a pH of about 12. Hair ...
The video to which people react is typically shown within the reaction video, allowing the reaction video's viewers to see what is being reacted to. This has led to controversy regarding the extent and conditions under which reacting to another creator's content falls under the doctrine of fair use in US law. [12] [13] [14] In the case of ...
The dihydrogen cation or hydrogen molecular ion is a cation (positive ion) with formula +. It consists of two hydrogen nuclei ( protons ), each sharing a single electron . It is the simplest molecular ion .
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and chemical formulas.The reactant entities are given on the left-hand side and the product entities are on the right-hand side with a plus sign between the entities in both the reactants and the products, and an arrow that points towards the products to show the direction of the reaction. [1]
A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. [1] When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated.
Iminium cations are reduced to the amines, e.g. by sodium cyanoborohydride. Iminium cations are intermediates in the reductive amination of ketones and aldehydes. Unsymmetrical iminium cations undergo cis-trans isomerization. The isomerization is catalyzed by nucleophiles, which add to the unsaturated carbon, breaking the C=N double bond. [3]