We have observed visible photoluminescence (PL) spectra (peak energy: 3.1 eV) of size-controlled silicon (Si) nanoparticles annealed in oxygen gas. The PL peak energy did not depend on the temperature, and the PL lifetime was relatively fast (on the order of nanoseconds). It was inferred that the visible PL was attributed to localized states in the oxidized surfaces of size-controlled Si nanopa...

Piperlongumine (PL) is recently found to kill cancer cells selectively and effectively via targeting reactive oxygen species (ROS) responses. To further explore the therapeutic effects of PL in cancers, we investigated the role and mechanisms of PL in cancer cell migration. PL effectively inhibited the migration of human glioma (LN229 or U87 MG) cells but not normal astrocytes in the scratch-wo...

1. Recently Kirby and Siebenmann have given general solutions of Hauptvermutung [5] and relative Hauptvermutung for neighborhoods of locally flat submanifolds [ó]. In this note we announce some results about relative Hauptvermutung for neighborhoods of 1-flat submanifolds with codimension two (compare [ l l ] and [3]). We shall say that manifold pairs (Q, M) and (Q', M') are topologically micro...

A system of PL/I procedures has been written that permits geometric objects to be described hierarchically. The objects are themselves represented as P L / I procedures, allowing very general use of variables. By effectively intercepting subprogram calls, the system provides a means of modifying the semantics associated with any object without modifying the object’s procedural description

the inheritance of cold resistance was evaluated at the germination stage in crosses between seven rice genotypes as half diallel. analysis of variance indicated that there were highly significant differences among the genotypes, general combining ability (gca) and specific combining ability (sca) for percentage of reduction in radicle length (rl), percentage of reduction in plumule length (pl)...

The gauge action of the Lie groupG on the chiral WZNW phase spaceMǦ of quasiperiodic fields with Ǧ-valued monodromy, where Ǧ ⊂ G is an open submanifold, is known to be a Poisson-Lie (PL) action with respect to any coboundary PL structure on G, if the Poisson bracket on MǦ is defined by a suitable monodromy dependent exchange r-matrix. We describe the momentum map for these symmetries when G is ...

Background—Platelets play a central role in the process of restenosis after percutaneous coronary interventions. A polymorphism of platelet glycoprotein IIIa (Pl) has been associated with a higher risk of coronary thrombosis. We designed this prospective study to test the hypothesis that Pl polymorphism of glycoprotein IIIa is associated with an increased risk for restenosis after coronary sten...