Understanding the detailed mechanism of the activation of voltage-gated ion channels has been a problem of great current interest. Reliable molecular simulations of voltage effects present a major challenge because meaningful converging microscopic simulations are not yet available and macroscopic treatments involve major uncertainties regarding the dielectric constant used and other key featur...

Classifying the information content of neural spike trains in a linguistic endeavor, an uncertainty relation emerges between the bit size of a word and its duration. This uncertainty is associated with the task of synchronizing the spike trains of different duration representing different words. The uncertainty involves peculiar quantum features, so that word comparison amounts to measurement-b...

We consider the microscopic equation of FENE (finite extensible nonlinear elasticity) models for polymeric fluids under a steady flow field. This paper will show for the underlying Fokker-Planck type of equations, any pre-assigned distribution on boundary will become redundant once the non-dimensional number Li := Hb kBT ≥ 2, where H is the elasticity constant, √ b is the maximum dumbbell exten...

We consider a body immersed in a perfect gas and moving under the action of a constant force. Body and gas are in thermal equilibrium. We assume a stochastic interaction body/medium: when a particle of the medium hits the body, it is absorbed and immediately re-emitted with a Maxwellian distribution. This system gives rise to a microscopic model of friction. We study the approach of the body ve...

background: giardia duodenalis is one of the most common human intestinal pro-tozoan parasites worldwide and is endemic throughout the world with a vast range of mammalian hosts. the present study aimed to identify the prevalence of g. duo-denalis isolates and determine the most common of its assemblages in the patients referring to health centers and hospitals in fars province, iran that will ...

background: coccidiosis is an intestinal disease of chickens caused by various species of proto­zoan parasites within the genus eimeria . diagnosis and genetic characterization of different spe­cies of eimeria are central to the prevention, surveillance, and control of coccidiosis. the aim of this study was to detect different chicken eimeria species from several areas in khuzestan, south­west ...

the microscopic and geomechanical properties of igneous building stones include the level of alteration, presence of micro cracks, peak strength, porosity, proportion of detrimental minerals, etc. porosity is reportedly of a devastating impact on the peak strength of igneous rocks. the quartz diorite rock samples in this study were selected from five quarries in natanz, iran and subject to micr...

purpose : this study was performed to compare complications and clinical course of microscopic and macroscopic hyphema resulting from blunt ocular trauma methods : in a prospective observational case series during the period 21 march 2010 to 20 march 2011 all referred patient with traumatic hyphema to ophthalmic emergency ward of ahvaz, main city of southwest of iran that met inclusion criteria...

of the many diverse arts that flourished during the third millennium bc, textiles played an especiallysignificant role in society. archaeological textiles offer an important source of material cultural testimony fordaily life in ancient times- relating simultaneously to agriculture, pastoralism, trade, migration, ritual, and soforth as well as to craft technologies. the study of the techniques ...

introduction studying motility of biological objects is an important parameter in many biomedical processes. therefore, automated analyzing methods via microscopic videos are becoming an important step in recent researches. materials and methods in the proposed method of this article, a hypothesis testing function is defined to separate biological particles from artifact and noise in captured v...