To identify adhesion molecules involved in the formation of liver metastases, we prepared monoclonal antibodies against rat liver plasma membranes, that inhibited the adhesion of mouse metastatic TA3 mammary carcinoma cells to rat hepatocytes in vitro. Two such antibodies (designated OPAR-1 and OPAR-2) were obtained, that inhibited by over 70%. As assessed with gel electrophoresis and immunoblo...

In this paper we propose a new technique for feature extraction/selection based on the projection of sensor features in class space and taking into account the sensor variance. The proposed technique is inspired by the organization of the early stages in the biological olfactory system, and proves to be highly suitable for high-dimensional feature vectors with small number of training samples. ...

We examined the effect of spatial waveform on the perceived spatial frequency of a grating target. The luminance profile of 0.5 c/ degrees sinusoidal gratings was modified by either compressive or expansive power functions, and was presented alternately with a true sinusoidal grating. Subjects matched the apparent spatial frequency of the two gratings using a method of adjustment. Both compress...

Here we have considered non uniform microstrip leaky-wave antenna implemented on a dielectric waveguide by a sinusoidal profile of periodic metallic grating. The non distribution of the attenuation constant α along propagation axis, optimize the radiating characteristics and performances of such antennas. The method developped here is based on an integral method where the formalism of the admit...

The effect of wave velocity on resonance line polarization is studied. We assumed a photosphere chromosphere type of temperature structure for the atmosphere with plane parallel symmetry. The ”Discrete Space Theory technique” to solve the polarized radiative transfer in the presence of velocity fields and under the assumption of Complete Redistribution mechanism is briefly described alongwith t...

In this study, we reported a silver sinusoidal nanograting used in microchannels, forming H2O/Ag/NOA/SiO2 heterostructure and studied the impact of interactions grating-coupled surface plasmon polaritons (SPPs) on surface-enhanced Raman scattering (SERS). There are two modes $$E_{x} (z)$$ Ag grating, namely, anti-symmetric mode (AM) at high SPP resonance frequency symmetric (SM) low-SPP frequen...

introduction : the aim of the present study was to comparatively evaluate the physical surface changes and incidence of separation in rotary nickel-titanium (niti) instruments using scanning electron microscope (sem). methods and materials: a total number of 210 freshly extracted human maxillary and mandibular first molars were selected and distributed between three groups. three different syst...

Measurements of flow velocities at the level of individual arterial vessels and sinusoidal capillaries are crucial for understanding the dynamics of hematopoietic stem and progenitor cell homing in the bone marrow vasculature. We have developed two complementary intravital two-photon imaging approaches to determine blood flow dynamics and velocities in multiple vessel segments by capturing the ...