reversion of number
21Cyclol — Figure 1: In the classic cyclol reaction, two peptide groups are linked by a N C’ bond, converting the carbonyl oxygen into a hydroxyl group. Although this reaction occurs in a few cyclic peptides, it is disfavored by free energy, mainly because… …
22Taoism — Taoist, n., adj. Taoistic, adj. /dow iz euhm, tow /, n. 1. the philosophical system evolved by Lao tzu and Chuang tzu, advocating a life of complete simplicity and naturalness and of noninterference with the course of natural events, in order to… …
23Prostate cancer — is a disease in which cancer develops in the prostate, a gland in the male reproductive system. It occurs when cells of the prostate mutate and begin to multiply out of control. These cells may spread (metastasize) from the prostate to other… …
24Polio vaccine — Two polio vaccines are used throughout the world to combat poliomyelitis (or polio). The first was developed by Jonas Salk and first tested in 1952. It was announced to the world by Salk on April 12, 1955. It consists of an injected dose of… …
25History of Japan — Paleolithic 35,000–14,000 BC Jōmon period 14,000–300 BC Yayoi period 300 BC–250 AD Kofun period …
26Panama — Panamanian /pan euh may nee euhn, mah /, adj., n. Panamic /pa nam ik/, adj. /pan euh mah , maw /, n. 1. a republic in S Central America. 2,693,417; 28,575 sq. mi. (74,010 sq. km). 2. Also called Panama City. a city in and the capital of Panama,… …
27probability and statistics — ▪ mathematics Introduction the branches of mathematics concerned with the laws governing random events, including the collection, analysis, interpretation, and display of numerical data. Probability has its origin in the study of gambling… …
28Linear regression — Example of simple linear regression, which has one independent variable In statistics, linear regression is an approach to modeling the relationship between a scalar variable y and one or more explanatory variables denoted X. The case of one… …
29Superoxide dismutase — For other senses of the term SOD/Sod, see Sod (disambiguation). Superoxide dismutase Structure of a human Mn superoxide dismutase 2 tetramer.[1] …
30Watchmen — This article is about the comic book limited series. For the live action adaptation, see Watchmen (film). For other uses, see Watchman (disambiguation). Watchmen Cover art for the 1987 U.S. (left) and 1995 U.S./UK/Canada (right) collected… …
