pattern bond
41protein — proteinaceous /proh tee nay sheuhs, tee i nay /, proteinic, proteinous, adj. /proh teen, tee in/, n. 1. Biochem. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the… …
42Technical analysis — Financial markets Public market Exchange Securities Bond market Fixed income Corporate bond Government bond Municipal bond …
43South Africa — Republic of, a country in S Africa; member of the Commonwealth of Nations until 1961. 42,327,458; 472,000 sq. mi. (1,222,480 sq. km). Capitals: Pretoria and Cape Town. Formerly, Union of South Africa. * * * South Africa Introduction South Africa… …
44Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
45Beta sheet — The β sheet (also β pleated sheet) is the second form of regular secondary structure in proteins consisting of beta strands connected laterally by three or more hydrogen bonds, forming a generally twisted, pleated sheet (the most common form of… …
46Dansgaard-Oeschger event — Dansgaard Oeschger events are rapid climate fluctuations occurring every ≈1470 (± 532) years throughout the last glacial period. Twenty three such events have been identified between 110,000 and 23,000 years BP; the comparable climate cyclicity… …
47performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains …
48Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… …
49Secondary structure — In biochemistry and structural biology, secondary structure is the general three dimensional form of local segments of biopolymers such as proteins and nucleic acids (DNA/RNA). It does not, however, describe specific atomic positions in three… …
50GrIDsure — Articleissues notable = October 2007 refimprove = October 2007 advert = October 2007IntroductionThis article describes the GrIDsure personal identification system which extends the standard ‘shared secret’ authentication model to create a secure… …
