581,196 research outputs found
Book Review: Theo-Monistic Mysticism: A Hindu-Christian Comparison
A review of Michael Stoeber\u27s Theo-Monistic Mysticism: A Hindu-Christian Comparison
Comment on Quantum teleportation via GHZ-like state
Recently Yang et al. [Int. J. Theo. Phys. 48 (2009) 516] have shown that an
unknown qubit can be teleported by using a particular GHZ-like state as quantum
channel. However, there are several errors in the calculation which lead to
incorrect conclusions. The errors have been indicated and corrected. It is also
noted that their scheme and the independently proposed teleportation scheme of
Zhang et al. [Int. J. Theo. Phys. 48 (2009) 3331] uses quantum channel from the
same family and any state of that family may be used for teleportation.Comment: 2 page
Measurement of event shape distributions and moments in e+e- -> hadrons at 91-209 GeV and a determination of alpha_s
We have studied hadronic events from e+e- annihilation data at centre-of-mass
energies from 91 to 209 GeV. We present distributions of event shape
observables and their moments at each energy and compare with QCD Monte Carlo
models. From the event shape distributions we extract the strong coupling
alpha_s and test its evolution with energy scale. The results are consistent
with the running of alpha_s expected from QCD. Combining all data, the value of
alpha_s(M_Z) is determined to be alpha_s(M_Z) = 0.1191 +- 0.0005 (stat.) +-
0.0010 (expt.) +- 0.0011 (hadr.) +- 0.0044 (theo.). The energy evolution of the
moments is also used to determine a value of alpha_s with slightly larger
errors: alpha_s(M_Z) = 0.1223 +- 0.0005 (stat.) +- 0.0014 (expt.) +- 0.0016
(hadr.) +0.0054 -0.0036 (theo.).Comment: 63 pages 26 fi
The Vertical Distribution of some West African Mosquitoes (Diptera,Culicidae) Over Open Farmland in a Freshwater Area of the Gambia
Mosquitoes flying at low levels over open farmland were sampled by means of electrical suction traps. These were set up at nine levels from ground level up to 6 m. From the vertical profiles obtained it was possible to recognise three patterns of behaviour: (1) a low-flying group with relatively very high densities below 1 m, comprising Mansonia (Mansonioides) spp., Aedes spp. and some species of Anopheles; (2) an intermediate group with densities rather evenly distributed at the lower levels but declining above 2-4 m, comprising A. funestus Giles, A. gambiae Giles and Culex neavei Theo.; (3) a high-flying group with catches at 6 m greater, or much greater, than at 1 m, composed of C. antennatus (Becfcer),C. thalassius Theo. and C. poicilipes (Theo.). For all species, catches after 23.00 h showed an increase in the proportion of mosquitoes taken in traps at the lower levels, this being most marked at ground level and 0-5 m. No influence of either moonlight or wind speed could be detected to account for this. Biting catches on human baits showed a generally similar pattern to suction-trap catches, although differences between baits at 1-m intervals at the higher levels were less than with unbaited traps
Determination of alpha_S using hadronic event shape distributions of data taken with the OPAL detector
The measurement of the strong coupling alpha_S using hadronic event shape
distributions measured with the OPAL detector at center-of-mass energies
between 91 and 209 GeV is summarized. For this measurement hadronic event shape
distributions are compared to theoretical predictions based on
next-to-next-to-leading-calculations (NNLO) and NNLO combined with resummed
next-to-leading-logarithm calculations (NLLA). The combined result using NNLO
calculations is
alpha_S(MZ)=0.1201+-0.0008(stat.)+-0.0013(exp.)+-0.0010(had.)+-0.0024(theo.)
and the result using NLLO and NLLA calculations is
alpha_S(MZ)=0.1189+-0.0008(stat.)+-0.0016(exp.)=-0.0010(had.)+-0.0036(theo.),
with both measurements being in agreement with the world average.Comment: 4 pages, 2 figures, contribution to the Proceedings of Rencontres de
Moriond, QCD Session, March 20th - 27th, 2011 in La Thuile, Italy; based on
arXiv:1101.147
Dynamical Casimir Effect for a Swinging Cavity
The resonant scalar particle generation for a swinging cavity resonator in
the Casimir vacuum is examined. It is shown that the number of particles grows
exponentially when the cavity rotates at some specific external frequency.Comment: to appear in J. Phys. A: Math. Theo
Dispositions, Their Bases And Correlates – Meinong's Analysis
I shall first set out the main lines of Meinong’s account then look at the theo- ries of dependence and possibility on which it is based. Finally I consider some applications of the theory, most of which are at least hinted at by Meinong
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