© 2008 Weller et al. The Rockefeller University Press $30.00 J. Exp. Med. Vol. 205 No. 6 1331-1342 www.jem.org/cgi/doi/10.1084/jem.20071555 1331 In humans, peripheral blood B cells expressing the CD27 marker and mutated Ig receptors are usually considered to be memory B cells generated in germinal centers (GCs) during immune responses to T-dependent (TD) antigens. In adults, approximately half ...

We report efficient generation of cw yellow light by use of single-pass sum-frequency mixing from a diode-pumped Nd:YVO(4) dual-wavelength laser with periodically poled lithium niobate. A diode-pumped Nd:YVO(4) dual-wavelength laser is implemented with a three-mirror cavity, and the optimum oscillation condition is obtained from theoretical analysis. We extracted 78 mW of power at 593 nm from 1...

This paper is concerned with the counting and random sampling of plane graphs (simple planar graphs embedded in the plane). Our main result is a bijection between the class of plane graphs with triangular outer face, and a class of oriented binary trees. The number of edges and vertices of the plane graph can be tracked through the bijection. Consequently, we obtain counting formulas and an eff...

Several N-allyl derivatives of 1-phenylcyclohexylamine (PCA) were prepared, and their pharmacology was briefly characterized. The mono- and diallyl derivatives had phencyclidine-like activities in mice but were less potent behaviorally than phencyclidine (PCP). None were PCP antagonists. In vitro these compounds were competitive inhibitors of butyrylcholinesterase (BChE) and protected against i...

A sulfur-assisted five-cascade sequential reaction, wherein the in situ-generated allenyl allyl sulfides undergo thio-Claisen rearrangement, intramolecular Michael addition, and 1, 5-proton migration/aromatization to obtain allyl thiophen-2-yl acetates, propionates, and ketones as the final products, was reported. As a result of the ready availability of starting materials and the extremely sim...

SparesPOP is a MATLAB implementation of a sparse semidefinite programming (SDP) relaxation method for approximating a global optimal solution of a polynomial optimization problem (POP) proposed by Waki et al. The sparse SDP relaxation exploits a sparse structure of polynomials in POPs when applying “a hierarchy of LMI relaxations of increasing dimensions” by Lasserre. The efficiency of SparsePO...