BACKGROUND Restoration of carotid artery patency is one of the most frequently performed operations in vascular surgery. One of the most important problems that occur both short- and long-term after carotid endarterectomy is recurrent stenosis. Despite advances in imaging studies and better knowledge of the mechanisms of atherogenesis, the mechanism of restenosis remains unclear. Patients with ...

The conventional Cobb-Douglas production function model require strong assumptions such as the constant elasticity and the entire frontier efficiency. The varying elasticity production function is an useful extension but it does not take frontier efficiency into account, and the data envelope analysis model involves the use of linear programming methods to estimate the frontier efficiency where...

The topic of the article focuses on the evaluation of selected technological factors and their influence on resulting elasticity modulus of concrete. A series of various factors enter into the manufacturing process which, more or less, influences the elasticity modulus. This paper presents the results of concrete in which the influence of water coefficient and the size of maximum fraction of th...

This article represents the methodology of transport flows elasticity in condition two alternative routes. The planning routes demands elasticity. As an example was taken one Rostov-on-Don (Russia). A tunnel as route offered to redistribute flows. To assume behavior coefficient calculated. It showed effect implementation. Considering gives a clear idea if implementation is efficient.

abstract the purpose of this paper is estimation of the effective factors on tea supply in gilan province by using time series data during 1360-1390 in the form of nerlove model. according to the results, explanatory variables of the model could describe 97 percent of dependent variable (product supply) changes. the results show that the guaranteed price index of green tea leaf with elasticity ...

Pulmonary diseases of the lung often cause the change of elasticity. This article proposes a novel elasticity imaging method using multidetector-row CT (MDCT). The new method is based on non-rigid image registration from MDCT images of the inspiratory lung to those of the expiratory lung. The elasticity is calculated by local volume change between respirations. Also, this article introduces a n...