Using Voiculsecu’s free entropy, it is shown that the free group factors L(Fn) lack property C of Popa and that they lack finite multiplicity abelian subalgebras.

BACKGROUND The Lack's circuit is a co-axial Mapleson A breathing system commonly used in spontaneously breathing anesthetized adults but still requires high fresh gas flow (FGF). The Lack-Plus circuit was invented with the advantage of lower FGF requirement. The authors compared the Lack-Plus and Lack's circuit for the minimal FGF requirement with no rebreathing in spontaneously breathing anest...

The synthetic terpolymer of L-glutamic acid60-L-alanine30-L-tyrosine10 (GAT) fails to stimulate development of GAT-specific antibody responses in nonresponder mice but stimulates development of GAT-specific suppressor T cells that inhibit the development of normal anti-GAT plaque-forming cell responses to GAT complexed to methylated bovine serum albumin (MBSA). Extracts from lymphoid cells of G...

The genetic control of the immune response of inbred strains of mice to certain antigens has been demonstrated to be governed by a set of Ir genes linked to the major histocompatibility complex (H-2) of mice (1,2). Until recently, the control was thought to be governed by single, dominant genes, located within the I region of the H-2 complex. Merryman et al. (3) originally demonstrated that the...

Aromatic l-amino acid decarboxylase (AADC) is the second enzyme in the catecholamine biosynthetic pathway, and its activity is generally considered not to be limiting, and therefore not involved, in regulating flux through this pathway. Recent studies showing that its activity can be regulated in vivo and that the enzyme can be phosphorylated and activated in vitro have raised the possibility t...