Wilson's (1985, J. Comput. System. Sci. 31, 169 181) model of oracle gates provides a framework for considering reductions whose strength is intermediate between truth-table and Turing. Improving on a stream of previously published results, we prove that PL and PP are closed under NC1 reductions. This answers an open problem of Ogihara (1996, ``Proc. 37th Ann. IEEE Symp. Found. Computer Sci.'')...

The K+K− final state interaction was investigated based on both the K+K− invariant mass distributions measured at excess energies of Q = 10 and 28 MeV and the near threshold excitation function for the pp → ppK+K− reaction. The K+K− final state enhancement factor was parametrized using the effective range expansion. The effective range of the K+K− interaction was estimated to be Re(bK+K− ) = −0...

Consider two perfectly conducting spheres in a homogeneous medium where the current-electric field relation is the power law. Electric field E blows up in the L∞-norm as δ, the distance between the conductors, tends to zero. We give here a concise rigorous justification of the rate of this blow-up in terms of δ. If the current-electric field relation is linear, see similar results obtained earl...

Let [x] be the integral part of x. Let p > 5 be a prime. In the paper we mainly determine P[p/4] x=1 1 xk (mod p2), p−1 [p/4] (mod p3), Pp−1 k=1 2 k (mod p3) and Pp−1 k=1 2 k2 (mod p2) in terms of Euler and Bernoulli numbers. For example, we have

KAWACHI, M. : ‘Silica-based planar lightwave circuit technologies’. hoc. 17th European Conf. on Optical Communication, 8th Int. Conf. on Integrated Optics and Optical Fibre Communication, September 1991, pp. 51-58 YALETTE, S., RENARD, S., D E W H., IADOT, 1. P., FOURNIE& A., PHILIPPE, P., GIDON, P., GROUILLET, A. M., and DESGRANGES, D.: ‘Si-based integrated optics technologies’, Solid State Tec...

Increasing evidence showed a link between arterial elasticity and stiffness and pulse pressure (PP), in which plasma aldosterone may play a role. The observational study aimed to explore the potential relations between plasma aldosterone concentration (PAC) and PP in patients with hypertension. We evaluated the relation between PP and PAC in supine, seated, and upright positions in 195 patients...

OBJECTIVES ATP-sensitive potassium channels (K+ATP) prominently contribute to basal coronary tone; however, flow reserve during exercise remains unchanged despite channel blockade with glibenclamide (GLI). We hypothesized that increasing perfusion pulsatility, as accompanies exercise, offsets vasoconstriction from K+ATP-channel blockade, and that this effect is blunted by nitric oxide synthase ...

fibre data links: present progress and future prospects’. Proc. 2nd Int. Conf. Plastic Optical Fibre and Applications, 1993, pp. 8-13 5 K O I K E , ~ . : ‘High bandwidth, low loss polymer fibres’. Proc. ECOC‘92, 1992, Vol. 2, pp. 679486 6 ISHIGURE, T., NIHEI, E., and KOIKE, Y.: ‘Graded-index polymer optical fibre for high-speed data communication’, Appl. Opt. , 1994, 33, (19), pp. 42614266 4 WA...

We have studied the structure of K (-) pp comprehensively by solving this threebody system in a variational method, starting from the Ansatz that the Λ(1405) resonance (≡Λ (*)) is a K (-) p bound state. The structure of K (-) pp reveals a molecular feature, namely, the K (-) in Λ (*) as an "atomic center" plays a key role in producing strong covalent bonding with the other proton. We point out ...