Helper
41Helper, Hinton Rowan — born Dec. 27, 1829, Davie county, N.C., U.S. died March 9, 1909, Washington, D.C. U.S. antislavery writer. His 1857 work The Impending Crisis of the South argued that slavery harmed nonslaveholding whites and inhibited economic progress in the… …
42Helper cell — A type of T cell that participates in the immune response by recognizing foreign antigens and secreting substances called cytokines that activate T and B cells. Helper cells fall into two main classes: those that activate other T cells to achieve …
43Helper dependent virus — A helper dependent virus also termed a gutless virus is a synthetic viral vector dependent on the assistance of a helper virus in order to replicate.Since the genome of the gutless virus does not include genes encoding the enzymes required to… …
44Helper virus — A helper virus is a virus used when producing copies of a helper dependent viral vector which does not have the ability to replicate on its own. The helper virus is used to coinfect cells alongside the viral vector and provides the necessary… …
45Helper/suppressor ratio — The T Lymphocyte Helper/Suppressor Profile (Helper/Suppressor ratio, T4:T8 ratio, CD4:CD8 ratio) is a basic laboratory test in which the percentage of CD3 positive lymphocytes in the blood positive for CD4 (T helper cells) and CD8 (a class of… …
46helper T cell — help·er T cell .hel pər tē n a T cell that participates in an immune response by recognizing a foreign antigen and secreting lymphokines to activate T cell and B cell proliferation, that usu. carries CD4 molecular markers on its cell surface, and …
47helper T cell — noun Date: 1974 a T cell that participates in an immune response by recognizing a foreign antigen and secreting lymphokines to activate T cell and B cell proliferation and that usually carries CD4 molecular markers on its cell surface called also …
48Helper application — A helper application is an external viewer program launched to display content retrieved using a web browser. Some common examples include Windows Media Player and QuickTime Player for playing streaming content. Unlike a plugin(whose full code is …
49helper factor — A group of factors apparently produced by helper T lymphocytes that act specifically or nonspecifically to transfer T cell help to other classes of lymphocytes. The existence of specific T cell helper factor is uncertain …
50helper application — atveriančioji programa statusas T sritis informatika apibrėžtis ↑Programa, kurią iškviečia kita programa tam tikro tipo failui, su kuriuo ji pati negali susidoroti, atverti ir peržiūrėti. Pavyzdžiui, interneto ↑naršyklė gali parsiųsti bet kokio… …
