Helical structures like alpha helices, DNA, and microtubules have profound importance in biology. It has been suggested that these periodic arrangements of constituent units could support collective excitations similarly to crystalline solids. Here, we examine the interaction between such constructs oscillating dipoles, evaluate role helicity coupling electrodynamic fields vibrations. Based on ...

Abstract We fabricated nanoparticles of Zn ferrite the chemical formula ZnFe2O4 using auto-combustion technique, and investigated their magnetic spin distribution frequency response to optical excitation. Optical absorption characterization were carried out in UV–Vis IR range, extended on low side down THz domain. The also characterized by X-ray diffraction force microscopy. dielectric constant...

The nEDM apparatus at PSI has been used to search for different dark matter signatures utilizing its high sensitivity shifts in the neutron precession frequency and well-controlled low magnetic field \mu μ T level. Such a shift could be interpreted as consequence of short-range spin-dependent i...

Background: An oscillating bone saw is rarely used to perform laminectomy. The purpose of this study was to describea relatively quick and harmless technique for multilevel laminectomy in patients with lumbar spinal stenosis (LSS) usingan oscillating bone saw to find out how this instrument affects the time of surgery and rate of complications.Methods: This prospective study w...

we use high-resolution electrical resistivity imaging to delineate the geometry of the landslide and discontinuity surface between slide mass and bedrock in roudbar region, ghazvin-rasht-anzali railway (the tunnel no. 2 at km. 108+825). the roudbar region characterized by high geological hazard and shows a complete panorama of mass movements. in this area, different landslide types predisposed ...

Experimental test for the response function of metals to low-frequency s-polarized evanescent waves is proposed by measuring lateral component magnetic field an oscillating dipole spaced above a thick metallic plate. This suggestion motivated fact that Lifshitz theory using Drude in contradiction with high-precision measurements Casimir force performed at separations exceeding 150~nm. Analytic ...

effects of temperature and percentage of organic modifier were studied on retention and selectivity in rp-hplc using solvation parameter model. the system constants were determined by multiple linear regression analysis from experimental values in the retention factor for a group of different solutes with known descriptors by computer using the program spss/pc. the experimental results showed t...

in this paper,  we determine necessary and sufficient tauberian conditions under which convergence in pringsheim's sense of a double sequence of fuzzy numbers follows from its $(c,1,1)$ summability. these conditions are satisfied if the double sequence of fuzzy numbers is slowly oscillating in different senses. we also construct some interesting double sequences of fuzzy numbers.