Magnetoresistance measurements of highly underdoped superconducting La2−xSrxCuO4 films with x = 0.051 and x = 0.048, performed in dc magnetic fields up to 20 T and at temperatures down to 40 mK, reveal a magnetic–field induced transition from weak to strong localization in the normal state. The normal–state conductances per CuO2–plane, measured at different fields in a single specimen, are foun...

PND10 AssessmeNt of outPAtieNt PhysiotherAPy services iN DiseAses of the Nervous system iN huNgAry Molics B.1, Hanzel A.1, Kiss G.1, Járomi M.1, Cs. Horváth Z.2, Sebestyén A.3, Boncz I.1 1University of Pécs, Pécs, Hungary, 2National Institute for Qualityand Organizational Development in Healthcare and Medicines, Pécs, Hungary, 3National Health Insurance Fund Administration, Pécs, Hungary Object...

The weak-field slow-motion limit of fourth-order gravity will be discussed. Let us consider the gravitational theory defined by the Lagrangian Lg = (8πG) −1 ( R/2 + (αRijR ij + βR)l ) . (1) G is Newton’s constant, l a coupling length and α and β numerical parameters. Rij and R are the Ricci tensor and its trace. Introducing the matter Lagrangian Lm and varying Lg + Lm one obtains the field equa...

INTRODUCTION The molecular structure of polysaccharides has led to the belief that these polymers are stiff. The characteristic ratio (CN) for polysaccharides is rather high, although reported CN values are limited to typical polysaccharides such as cellulose1 and gellan.2 If we can prepare concentrated solutions of polysaccharides, we can determine the molecular weights between entanglements i...

We point out that, due to the nonlinearity of the Einstein equations, a homogeneous approximation in cosmology leads to the appearance of an additional term in the Friedmann equation. This new term is associated with the spatial inhomogenities of the metric and can be expressed in terms of density fluctuations. Although it is not constant, it decays much slower (as t− 2 3 ) than the other terms...

we use the Kruskal time coordinate T to define the initial time. By this way, it naturally divides the stable study into one connected with the two regions: the whitehole-connected region and the black-hole-connected region. The union of the two regions covers the Schwarzschild space-time (r ≥ 2m). We also obtain the very reasonable conclusion: the white-hole-connected region is instable; where...

In a Wheeler-De Witt approach to quantum string cosmology, the present state of the Universe arises from the scattering and reflection of the wave function representing the initial string vacuum in superspace. This scenario is described and compared with the more conventional quantum cosmology picture, in which the birth of the Universe is represented as a process of tunnelling “from nothing” i...