The kinematic structure of a sample of planetary nebulae, consisting of 23 [WR] central stars, 21 weak emission line stars (wels) and 57 non-emission line central stars, is studied. The [WR] stars are shown to be surrounded by turbulent nebulae, a characteristic shared by some wels but almost completely absent from the non-emission line stars. The fraction of objects showing turbulence for non-...

Studies of V79-171 cells were undertaken to determine what extracel lular or intracellular derivative of the drug WR-2721 is associated with radioprotection. The effect of preincubation at 23 ±1°Cwith WR-2721, and with derivatives of WR-2721 produced in medium containing alkaline phosphatase, upon survival of cells following subsequent -y-irradiation was examined. It was established that WR-2...

Crown-gall tumor cells induced by Agrobacterium tumefaciens (Sm. and Town.) Conn develop from normal plant cells by the action on them, in sequence, of several causal factors.1 Inoculations of susceptible species frequently result in fairly uniform tumors in 100 per cent of the trials. Inoculations of other plant species are not always successful or may result in tumors showing considerable siz...

While cooperative DNS resolver systems, such as CoDNS, have demonstrated improved reliability and performance over standard approaches, their security has been weaker, since any corruption or misbehavior of a single resolver can easily propagate throughout the system. We address this weakness in a new system called ConfiDNS, which augments the cooperative lookup process with configurable polici...

This document addresses the issues of the discovery of URN resolver services that in turn will directly translate URNs into URLs and URCs. The document falls into three major parts, the assumptions underlying the work, the guidelines in order to be a viable Resolver Discovery Service or RDS to help in finding URN resolvers, and a framework for designing RDSs. The guidelines fall into three majo...

To build a coreference resolver for a new language, the typical approach is to first coreference-annotate documents from this target language and then train a resolver on these annotated documents using supervised learning techniques. However, the high cost associated with manually coreference-annotating documents needed by a supervised approach makes it difficult to deploy coreference technolo...

This paper examines whether a learningbased coreference resolver can be improved using semantic class knowledge that is automatically acquired from a version of the Penn Treebank in which the noun phrases are labeled with their semantic classes. Experiments on the ACE test data show that a resolver that employs such induced semantic class knowledge yields a statistically significant improvement...

Previously, we have reported the synthesis of a homochiral l-cyclic peptide [WR]5 and its use for delivery of anti-HIV drugs and biomolecules. A physical mixture of HAuCl4 and the peptide generated peptide-capped gold nanoparticles. Here, [WR]5 and [WR]5-AuNPs were tested for their efficiency to deliver a small interfering RNA molecule (siRNA) in human cervix adenocarcinoma (HeLa) cells. Flow c...

in this research, the steady-state flow filed around a 3d body and rotor configuration of the robin helicopter is simulated. the rotor is modeled by an actuator disk. for this purpose, an annular computational domain replaces the rotor and some modeled source terms are added to the momentum equations. this modeling of rotor considerably speed up computational time. the flow field over this heli...