Family of RNA viruses that infects birds and mammals and encodes the enzyme reverse transcriptase. The family contains seven genera: DELTARETROVIRUS; LENTIVIRUS; RETROVIRUSES TYPE B, MAMMALIAN; ALPHARETROVIRUS; GAMMARETROVIRUS; RETROVIRUSES TYPE D; and SPUMAVIRUS. A key feature of retrovirus biology is the synthesis of a DNA copy of the genome which is integrated into cellular DNA. After integration it is sometimes not expressed but maintained in a latent state (PROVIRUSES)
Leura (N.S.W.) -- Guidebooks. : Spend your holidays at Katoomba-Leura, Blue Mountains : the playground of the Commonwealth
1935
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Leura (N.S.W.) -- Maps. : Blue Mountains, N.S.W., Australia : tourist map, Katoomba - Leura, upper Blue Mountains, N.S.W., Australia / compiled & drawn by V. E. Coleman
Lev z Roẑmitâlu a z Blatné : The travels of Leo of Rozmital : through Germany, Flanders, England, France, Spain, Portugal and Italy 1465-1467 / translated from the German and Latin and edited by Malcolm Letts
Here are entered works on the region consisting of Asia west of Pakistan, northeastern Africa, and occasionally Greece, Pakistan, and Afghanistan. Works treating collectively the Arabic-speaking countries of Asia and Africa, or of Asia only, are entered under Arab countries
Precursor of epinephrine that is secreted by the ADRENAL MEDULLA and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers, and of the diffuse projection system in the brain that arises from the LOCUS CERULEUS. It is also found in plants and is used pharmacologically as a sympathomimetic
The muscles that move the eye. Included in this group are the medial rectus, lateral rectus, superior rectus, inferior rectus, inferior oblique, superior oblique, musculus orbitalis, and levator palpebrae superioris
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Levée. : The Wars of the French Revolution : 1792-1801 / Charles J. Esdaile
