abstract background: acute appendicitis is the most common cause of acute surgical abdomen. inspite of the introduction of ultrasonography, computed tomography scanning and laparoscopy in the years 1987-1997 the difficulty in accurate diagnosis of acute appendicitis has remained the same. our way of reaching a decision for operating in a patient suspected of having acute appendicitis (which wil...

Openings in fiction have received increasing attention lately from critics concerned both with narrative theory and the explication of specific texts. In his story, "A Poet's Continuing Silence," A. B. Yehoshua provides a series of opening signals that command special interest, since the text focuses directly on beginnings and attempted new beginnings in the lives of the protagonists. The vario...

The aim of this study was to investigate the effects of starters and storage temperature (4 ºC, 25 ºC) onmicrobiological and physicochemical properties, volatile compounds and sensory evaluation of kefir.Kefirs produced by KFA and Chr. Hansen starters were stored at 4 ºC and 25 ºC for 40 days. pH andacidity at 4 ºC did not change (p ≥ 0.05), while at 25 ºC pH and total solid decreased as well a...

In direct volume rendering, transfer functions map data points to optical properties such as color and opacity. We have found transfer functions based on the Gaussian primitive to be particularly useful for multivariate volumes, because they are simple and rely on a limited number of free parameters. We show how this class of transfer function primitives can be analytically integrated over a li...

the aim of this research is to analyse of empirical relationship of fiscal policy and iranian trade account in the years 1338-1385(1959-2006). in and econometrics model the methods of engle and granger (1987), johansen (1988), ardl, pessaran and shin(1998), philips and hansen(1990), have been used to find out the effects of variables such as government expenditures(the component of public deman...