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In immunology, a memory B cell ( MBC) is a type of B lymphocyte that forms part of the adaptive immune system. These cells develop within germinal centers of the secondary lymphoid organs. Memory B cells circulate in the blood stream in a quiescent state, sometimes for decades. [1] Their function is to memorize the characteristics of the ...
Memory Alpha. Memory Alpha is a wiki encyclopedia for topics related to the Star Trek fictional universe. Created by Harry Doddema and Dan Carlson, it uses the wiki model [ 2] and is hosted by Fandom on the MediaWiki software. [ 3] As of September 2023, Memory Alpha contains over 56,000 articles and 62,000 images in its English edition. [ 4]
Memory is the faculty of the mind by which data or information is encoded, stored, and retrieved when needed. ... DNA topoisomerase 2-beta in learning and memory
Some memory B cells can be activated without T cell help, such as certain virus-specific memory B cells, but others need T cell help. [26] Upon antigen binding, the memory B cell takes up the antigen through receptor-mediated endocytosis, degrades it, and presents it to T cells as peptide pieces in complex with MHC-II molecules on the cell ...
Consistent with this, the accumulation of the beta-amyloid protein precedes the decline in cognitive function, including memory and decision-making, by several years.
The Star Trek Star Charts further locate in the Alpha Quadrant the First Federation, Breen, Ferengi, Tzenkethi, Cardassians, Bajorans, Talarians, and Tholians . Star Trek VI: The Undiscovered Country implies that the Alpha/Beta border runs through, or is relatively close to, Federation space.
The software release life cycle is the process of developing, testing, and distributing a software product (e.g., an operating system ). It typically consists of several stages, such as pre-alpha, alpha, beta, and release candidate, before the final version, or "gold", is released to the public. An example of a basic software release life cycle ...
According to Memory Alpha, maps from the set were featured as part of the 1992 Star Trek exhibition presented by the National Air & Space Museum. Larry Nemecek created a similarly in-depth package of wall maps and encyclopedic booklet in Stellar Cartography: The Starfleet Reference Library (2013).