3677 Scholte-Stoneley waves (SSW) propagate at the interface of a fluid medium and a solid medium. They have a velocity smaller than the transverse and longitudinal velocities in the solid, and smaller than the sound velocity in the fluid. They are thus doubly evanescent and propagate without loss along the interface. They were observed for periodically corrugated surfaces in contact with water...

BACKGROUND The influence of serum leptin levels on nutritional status and survival in chronic hemodialysis patients remained to be elucidated. We conducted a prospective longitudinal study of leptin levels and nutritional parameters to determine whether changes of serum leptin levels modify nutritional status and survival in a cohort of prevalent hemodialysis patients. METHODS Leptin, dietary...

In a world with increasing incidences of obesity, it becomes critical to understand the detailed regulation of appetite. To identify novel regulators of the signaling mediated by one of the key hormones of energy homeostasis, leptin, we screened a set of compounds for their effect on the downstream Signal Transducer and Activator of Transcription 3 (STAT3) signaling. Interestingly, cells expose...

An investigation of reflection and transmission phenomena of plane longitudinal wave from a plane interface between two distinct micropolar porous elastic solid half-spaces in welded contact has been made. Using the method of potentials, the appropriate boundary conditions at the interface are solved to obtain the amplitudes of various reflected and transmitted waves. It has been noticed that t...

There is considerable evidence to indicate that an inhibition of tumor growth is observed in animals maintained on a nutrit ionally adequate diet but limited in caloric intake (1, 5, 11, 12). This effect appears to be due entirely to the caloric restriction rather than to the lack of some specific growth factor. The result is especially significant since the animals maintained on the curtailed ...

An incidence of G consists of a vertex and one of its incident edge in G. The incidence coloring problem is a variation of vertex coloring problem. The problem is to find the minimum number (called incidence coloring number) of colors assigned to every incidence of G so that the adjacent incidences are not assigned the same color. In this paper, we propose a linear time algorithm for incidence-...

Energy-angle distributions of low-energy inert-gas ions scattered from surfaces provide information about surface composition and structure. We have measured energy spectra of He scattered from an Al71Pd20Mn9 quasicrystal, which was oriented perpendicular to the 5-fold axis, along various azimuthal directions. Strong scattering signals are seen from Al and Pd, but only a weak Mn signal is obser...

The sticking and scattering of O(2)Pt(111) has been studied by tight-binding molecular dynamics simulations based on an ab initio potential energy surface. We focus, in particular, on the sticking probability as a function of the angle of incidence and the energy and angular distributions in scattering. Our simulations provide an explanation for the seemingly paradox experimental findings that ...

Let F be a field with positive odd characteristic p. We prove a variety of new sum-product type estimates over F . They are derived from the theorem that the number of incidences between m points and n planes in the projective three-space PG(3, F ), with m ≥ n = O(p), is O(m √ n+ km), where k denotes the maximum number of collinear planes. The main result is a significant improvement of the sta...

We show that the number of incidences between m distinct points and n distinct lines in R 4 is O (