It seems likely that the first detection of gravitational waves with the LIGO/VIRGO/... interferometers will come from binary systems made of massive black holes of comparable masses, say with a total mass M ≃ 15M⊙ + 15M⊙. For such massive systems the gravitational-wave frequency at the last stable (circular) orbit (LSO) is very close to the location of the minimum of the detector’s noise spect...

The nicotinic acetylcholine (ACh) receptor converts transiently to an open-channel form when activated by ACh released into the synaptic cleft. We describe here the conformational change underlying this event, determined by electron microscopy of ACh-sprayed and freeze-trapped postsynaptic membranes. ACh binding to the α subunits triggers a concerted rearrangement in the ligand-binding domain, ...

JERUSALEM The Israe li arm y on M onday im posed its broadest clam pdow n ye t on the 1.5 million P alestin ian s living in the occupied te rrito rie s , sealing the regions for th ree days to com bat a PLO day of protest. The a rm y also announced it w as barring jo u rna lists from the te rrito ries for the firs t tim e in the four m onths of un rest tha t have left 119 P alestin ian s and on...

In an economic sense, heartwater disease is the most important tick-borne faced by South African livestock farmers. Methods to control vary among farmers, and preferred method depends on prevalence of in a specific area. The cost-effectiveness different acaricide prevention methods against has not yet been determined amongst producers. study’s objective was determine used Africa. Data for this ...

Results Our study showed that healthy controls had a Tregs frequency of 4.1%. When Tregs frequency analyzed among HIV/AIDS patients who are yet to receive HAART we found a significant reduction in Tregs population i.e. 1.2%. Encouragingly this deep plunge in Tregs population was found to be restored and surged upon HAART up to 12.6%. However, these changes in percentages did not alter based on ...

Using a post-Newtonian diagnostic tool developed by Mora and Will, we examine numerically generated quasiequilibrium initial data sets that have been used in recently successful numerical evolutions of binary black holes through plunge, merger and ringdown. We show that a small but significant orbital eccentricity is required to match post-Newtonian and quasiequilibrium calculations. If this pr...

The non-resonant dynamic galloping of an iced, electrical transmission line is studied. Conditions and trends for the initiation of galloping have been given previously. Boundaries are presented here at which a periodic plunge or torsional motion loses stability and bifurcates into a quasi-periodic (mixed-mode) motion. Specific attention is given to the overall effects of an iced line’s eccentr...