Constitutive and inducible transcription of the major histocompatibility class II HLA-DRA gene involves the upstream S element and the conserved X and Y elements. In this report we have addressed the roles of spatial constraints and stereospecific alignment between the upstream S and X elements, and the X and Y elements, in both constitutive and interferon-gamma (gamma-IFN)-induced expression. ...

A combined numerical and analytic approach is presented to obtain a general matrix form of constitutive relations for a bi-anisotropic material which consists of arbitrary inclusions in a host medium. This approach is based on the quasi-static Lorentz-Lorenz theory which relates the constitutive parameters of the material with the electric and magnetic dipole moments of the inclusions which can...

the the main objective of this research paper is to present 3-d elasticity solution for free vibration analysis of elastically supported continuously graded carbon nanotube-reinforced (cgcntr) annular plates. the volume fractions of oriented, straight single-walled carbon nanotubes (swcnts) are assumed to be graded in the thickness direction. an equivalent continuum model based on the eshelby-m...

approaches to defining 'information' are politically problematic. All decisionmaking concerns can be incorporated in, and the definitional dilemma resolved with, a hierarchy of four categories of definitions that increase in scope and complexity of the social structure to which they are applied as well as the amount of power granted information. These categories of information are as a resource...

In the discipline of non-Newtonian materials, the ability to control viscoelastic stresses is very desirable in ascertaining important properties of the influenced materials. We apply the nonlinear geometric control theory to examine the controllability of various popular constitutive models with imposed homogeneous extensional flow. The subsequent constitutive laws considered here include the ...

objective: polymorphism of the size of heterochromatin region of chromosomes has been well documented in human genome and it consists of dna sequences that are not transcribed. the prime aim of the present study was to evaluate the heterochromatin polymorphism associated with chromosomes in leukemic patients. materials and methods: the study was conducted on 35 consecutive leukemic patients and...

Commitments have recently emerged as a valuable abstraction for characterizing interactions among autonomous agents at the level of their business relationships. Traditionally, interoperation is approached from the standpoint of data exchange or of messaging. We use commitments to characterize interoperability in high-level terms: at the level of the communications among agents. Specifically, t...

biomechanical properties of soft tissue, such as liver, are important in modeling computer aided surgical procedures. experimental evidences show that liver tissue is transversely isotropic. in this article, considering the liver tissue as an incompressible fiber-reinforced composite with one family of fibers, an exponential strain energy function (sef) is proposed. the proposed sef is based on...