نتایج جستجو برای: 48undergraduate right

تعداد نتایج: 280117  

Journal: :surgery and trauma 0
hamid hoseinikhah faculty of medicine, mashhad university of medical sciences, atherosclerosis prevention research center, mashhad, iran mohammad abbassi teshnisi faculty of medicine, mashhad university of medical sciences, atherosclerosis prevention research center, mashhad, iran ahmadraza zarifian student research committee yasamin moeinipour student research committee aliasghar moeinipour faculty of medicine, mashhad university of medical sciences, atherosclerosis prevention research center, mashhad, iran

introduction: coronary endarterectomy is not a perfect procedure. however, it is sometimes the only available alternative for cardiac surgeons in patients suffering from diffuse coronary artery disease. according to a large volume of studies, coronary endarterectomy results (such as survival, recurrence of the symptoms of myocardial ischemia, and graft patency) are not as satisfactory as standa...

 Let $R$ be a ring‎, ‎and let $n‎, ‎d$ be non-negative integers‎. ‎A right $R$-module $M$ is called $(n‎, ‎d)$-projective if $Ext^{d+1}_R(M‎, ‎A)=0$ for every $n$-copresented right $R$-module $A$‎. ‎$R$ is called right $n$-cocoherent if every $n$-copresented right $R$-module is $(n+1)$-coprese-nted‎, ‎it is called a right co-$(n,d)$-ring if every right $R$-module is $(n‎, ‎d)$-projective‎. ‎$R$...

We introduce the class of “right almost V-rings” which is properly between the classes of right V-rings and right good rings. A ring R is called a right almost V-ring if every simple R-module is almost injective. It is proved that R is a right almost V-ring if and only if for every R-module M, any complement of every simple submodule of M is a direct summand. Moreover, R is a right almost V-rin...

Journal: :bulletin of the iranian mathematical society 0
z. ‎zhu department of mathematics,jiaxing university,jiaxing,zhejiang province,china,314001

let $r$ be a ring‎, ‎and let $n‎, ‎d$ be non-negative integers‎. ‎a right $r$-module $m$ is called $(n‎, ‎d)$-projective if $ext^{d+1}_r(m‎, ‎a)=0$ for every $n$-copresented right $r$-module $a$‎. ‎$r$ is called right $n$-cocoherent if every $n$-copresented right $r$-module is $(n+1)$-coprese-nted‎, ‎it is called a right co-$(n,d)$-ring if every right $r$-module is $(n‎, ‎d)$-projective‎. ‎$r$ ...

رنجبرنژاد اصفهانی, حسن ,

Pulmonary artery pressure can be estimated from right ventricular-right atrial pressure gradient in patients with tricuspid regurgitation. The most common approach is to estimate pulmonary artery systolic pressure from right ventricular pressure (assuming no pulmonic stenosis) determined as the sum of the right ventricular-right atrial pressure gradient and either an assumed or clinically deter...

Journal: :The ANNALS of the American Academy of Political and Social Science 2006

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