an important concern in rock mechanics is non-homogeneity as joints or fault. this noticeable feature of failures in rock is appearance of slip surfaces or shear bands, the characteristics of that are associated with deformation being concentrated in a narrow zones and the surrounding material remaining intact. adopting the joints as fractures, fractures are well known for their effects on the ...

An H1 to relax chromatin? R ed blood cell differentiation requires a stickier histone H1, which closes chromatin to transcription, based on fi ndings from Dhananjay Yellajoshyula and David Brown (University of Mississippi, Jackson, MS). The less sticky form, however, might favor transcription not by falling off faster but by relaxing chromatin. Undifferentiated cells need relaxed, accessible ch...

We study information sharing in a Cournot duopoly with isoelastic demand function, when the elasticity is uncertain. This is one of the rst attempts to analyze the role of nonlinearity in such a framework. We found important results about the pro tability of sharing informations when marginal costs are high and/or the variance between elasticity values is low. From the point of view of welfare ...

differing consumption patterns among individuals along with relative commodity price changes has made inflation effects differ from one person to another. on the other hand, inflation continues to be a general phenomenon in iranian economy. the impacts of price changes on rural poverty have been hereby investigated. for this, market price fluctuations in rural areas of fars province during the ...

This paper proposes a m ethodology to assess the pro-poorness of governm ent fiscal policies in view of bringing m arginal reform s. A governm ent policy is said to be pro-poor if it benefits the poor proportionally m ore than the non-poor. The author first derives the poverty elasticity for the general class of poverty. Then, using the idea of poverty elasticity, she proposes a propoor index t...

INTRODUCTION Minimally invasive radical prostatectomy (RP) (robotic and laparoscopic), have brought improvements in the outcomes of RP due to improved views and increased degrees of freedom of surgical devices. Robotic and laparoscopic surgeries do not incorporate haptic feedback, which may result in complications secondary to inadequate tissue dissection (causing positive surgical margins, rha...

In this article we describe the latest developments of the minimally invasive hepatic surgery simulator pro totype developed at INRIA A key problem with such a simulator is the physical modeling of soft tissues We propose a new deformable model based on non linear elasticity and the nite element method This model is valid for large displacements which means in particu lar that it is invariant w...

We analyze the equilibrium and the optimal resource allocations in a monocentric city under monopolistic competition. Unlike the constant elasticity of substitution (CES) case, where the equilibrium markups are independent of city size, we present a variable elasticity of substitution (VES) case where the equilibrium markups fall with city size. We then show that, due to excess entry triggered ...