f. dehghani-zadeh

Let R be a commutative Noetherian ring with nonzero identity. Let φ be a system of ideals of R and let M, N two finitely generated R-modules. We prove that there are local- global principles for the finiteness and minimaxness of generalized local cohomology module H_φ^i (M, N) , in certain cases.

Let $M$ and $N$ be two finitely generated graded modules over a standard graded Noetherian ring $R=bigoplus_{ngeq 0} R_n$. In this paper we show that if $R_{0}$ is semi-local of dimension $leq 2$ then, the set $hbox{Ass}_{R_{0}}Big(H^{i}_{R_{+}}(M,N)_{n}Big)$ is asymptotically stable for $nrightarrow -infty$ in some special cases. Also, we study the torsion-freeness of graded generalized local cohomology modules $H^{i}_{R_{+}}(M,N)$. Finally, the tame loci $T^{i}(M,N)$ of $(M,N)$ will be considered and some sufficient conditions are proposed for the openness of these sets in the Zariski topology.

Let (R,m) be a Noetherian local ring. Two notions of filter regular sequence and generalized local cohomology module with respectto a pair of ideals are introduced, and their properties are studied. Somevanishing and non-vanishing theorems are given for this generalized versionof generalized local cohomology module.

Primary intracerebral hemorrhage (ICH) is less frequent than ischemic stroke, but with higher mortality rate in its acute phase. The aim of current study was to determine the mortality rate and to evaluate the influence of different factors on the mortality of patients with primary intracerebral hematoma.

This cross-sectional study performed on 121 patients admitted to Sina Hospital, because of primary ICH during 3 years, from 1999 through 2002.  

According to the study, 65% of patients were between 60-80 years of age and 68.3% of them had history of hypertension. The morality rate was 47.1%, most of them happened during the two first days of the event. Evacuation of hematoma was done for 28 patients, with mortality rate of 78% in comparison to 38.1% in those who received medical therapy. However, most of operation were performed on more severe ICH and all of operated patients did not have the same condition according to the operation set up.  

According to the study, low Level of consciousness, large volume of hematoma, extension of hematoma to ventricles, brain midline shift and hydrocephalus led to poor outcome. Age, sex, history of hypertension, diabetes mellitus, cigarette smoking and mean arterial pressure on admission had not significant effect on patients’ outcome. It seems that larger or case – control studies are necessary to declare the independent prognostic factors and benefit of surgery in ICH .