Dedicated to Professor Gregorio Weber in the occasion of his 80th birthday It was found by investigating dichroism and emission anisotropy in the case of oneand two-photon excitation of Hoechst 33342 [bis-benzimide,2,5'-bi-lH-benzimidazole, 2'-(4-ethoxyphenyl)-5-5(4methyl-l-piperazinyl)] in stretched poly(vinyl alcohol) (PVA) films, that the absorption and fluorescence transition moments lie al...

To improve the material characteristics of singleand poly-crystals of pure copper, the respective relationships between crystallographic orientations and microstructures, and the bending and mechanical properties were examined. And texture distribution is also analyzed. A grain refinement procedure was performed to obtain a grained structure. Furthermore, some analytical results related to crys...

The structure and mechanical properties of bio-nanocomposite films made from poly(ethylene oxide) (PEO) that is physically cross-linked with silicate nanoparticles, Laponite, are investigated. Direction-dependent mechanical properties of the films are presented, and the effect of shear orientation during sample preparation on tensile strength and elongation is assessed. Repeated mechanical defo...

A convenient technique for calculating completed topological tensor products of functional Fréchet and DF spaces is developed. The general construction is applied to proving kernel theorems for a wide class of weighted spaces of smooth and entire analytic functions.

Multi-electrode arrays with 3D micropillars allow the recording of electrophysiological signals in vitro higher precision and signal-to-noise ratio than planar arrays. This is result tight interaction between electrode cell membrane. Most electrodes are manufactured on rigid substrates their integration flexible largely unexplored. Here, a straightforward approach presented for fabricating soft...

The nanocomposites of poly (Acryl amide-co-Acrylic acid) with different contents of NaAzeolite were prepared using ammonium persulfate as an initiator and N, N′-methylenebisacrylamide as the crosslinker. The morphology was characterized by SEM and the structure ofnanocomposite materials was studied with XRD and FT-IR that showed the interaction betweenporous materials and poly (AAm-co-Aac). The...

The authors report that the poly 3-hexylthiophene-2,5-diyl P3HT nanogratings shaped by nanoimprint lithography show enhanced hole mobility and strong anisotropy of conductance due to nanoimprint-induced three-dimensional polymer chain alignment. Field effect transistors were fabricated using these nanogratings and device measurements show a hole mobility of 0.03 cm2 /V s along the grating direc...

We report results on polarization-dependent photoinduced discharge in oriented fibers and films of ladder-type, electron-transporting polymer poly (ben-zimidazobenzophenanthroline), BBL. The photocarrier generation efficiency (φ) in the fiber which is indicated by the rate of discharge, is found to be distinctly higher for light polarized parallel to the fiber axis (P) as compared to the radial...

Cardiovascular diseases remain a major medical problems in most countries around the world, causing significant economic disbenefit. An important pathogenetic mechanism of influence insulin resistance and hypothyroidism on cardiovascular system is alteration autonomic regulation heart rhythm.
 Objective. The aim study was to evaluate dynamics rate variability (HRV) rats with obesity under ...