Three forms of the RNA-dependent DNA polymerase were isolated from highly purified avian sarcoma virus B77 grown in duck embryo fibroblasts, using sequential chromatography on DEAE-cellulose, phosphocellulose, and poly(U)-cellulose. One form, which sedimented with about 5.2 S, contained only one species of polypeptide, with a molecular weight of 63,000; a second sedimented with about 7.8 S and ...

A uni® ed review of various Kohn variational methods for scattering calculations is presented using appropriate Bloch operators. Previous expressions are generalized slightly to use either an in® nite range or a ® nite range of the scattering coordinate, or to use a basis set with non-® xed log derivative boundary conditions. A non-variationalmethod (method of moments) is used in the derivation...

Graph transformation systems or graph grammars are a generalization of formal grammars used in linguistics.One of principal differences is that the structures that are transformed by transformation rules are no more linear. In this paper we consider graph transformation systems in connection with proof theory. We develop the graph transformation framework, where the attributes are derivable jud...

The present study investigated the activation and sensitization effects of local injection of P2X receptor agonist alpha,beta-methylene ATP (alphabeta-meATP) into the receptive fields of afferent fibers innervating dorsal hairy skin in anesthetized rats. Single unit activities of afferent fibers were recorded by means of isolation of the fiber filaments from the dorsal cutaneous nerve branch. A...

Murine Lyme borreliosis, caused by infection with the spirochete Borrelia burgdorferi, results in acute arthritis and carditis that regress as a result of B. burgdorferi-specific immune responses. B. burgdorferi-specific antibodies can attenuate arthritis in mice deficient in both B cells and T cells but have no effect on carditis. Because macrophages comprise the principal immune cell in cardi...

Postnatal thymic involution occurs progressively throughout the first 3 decades of life. It predominantly affects T-cell receptor (TCR) alphabeta-lineage precursors, with a consequent proportional increase in multipotent thymic precursors. We show that T-acute lymphoblastic leukemias (T-ALLs) demonstrate a similar shift with age from predominantly TCR expressing to an immature (IM0/delta/gamma)...

UNLABELLED In the present study, the adrenergic receptor (AR) subtype mediating adrenergic augmentation of P2X(3) receptor-mediated nociceptive responses on sensory nerve endings was examined by using selective AR receptor agonists and antagonists in Sprague Dawley rats in the uninjured state. Local administration of alphabeta-methyleneATP (ligand for P2X3/P2X2/3 receptors) into the plantar hin...

The feasible interpolation theorem for semantic derivations from K. (1997) [16] allows to derive from some short semantic derivations (e.g. in resolution) of the disjointness of two NP sets U and V a small communication protocol (a general dag-like protocol in the sense of K. (1997) [16]) computing the Karchmer-Wigderson multi-function KW [U, V ] associated with the sets, and such a protocol fu...

Ideal Connes-amenability of dual Banach algebras was investigated in [17] by A. Minapoor, A. Bodaghi and D. Ebrahimi Bagha. They studied weak∗continuous derivations from dual Banach algebras into their weak∗-closed two- sided ideals. This work considers weak∗-continuous derivations of dual triangular Banach algebras into their weak∗-closed two- sided ideals . We investigate when weak∗continuous...