background: organic nitrates relax all kinds of smooth muscle , not only vascular smooth muscle , a fact that has allowed the use of these drugs to treat many different aliments. objective.-the purpuse of this study was to examine prosepectively benefical effects , if any, of sublingual nitroglycerin on the pain of renal colic. design.- prospective , randomised , double blind, placebo- contoled...

the space now known as complete erdos space ec was introduced by paul erdos in 1940 as the closed subspace of the hilbert space ?2 consisting of all vectors such that every coordinate is in the convergent sequence {0} ? { 1 n : n ? n}. in a solution to a problem posed by lex g. oversteegen we present simple and useful topological characterizations of ec. as an application we determine the ...

حضور مسئله انتخاب در مهمترین عرصه از حیات بشری،ازدواج، و بررسی چالش میان سپهر زیبائی شناختی و سپهر اخلاقی در توجیه این رفتار آدمی مورد بحث قرار گرفته است.سورن کیرکگارد در کتاب خود به نام either/or ضمن تبیین سه سپهر زیبائی شناختی،اخلاقی و دینی به اعمال آدمی نظر می کند و معتقد است که انسان در هر لحظه از زندگی مخیر است و دست به انتخاب می زند.او به ویژه در مجلد دوم کتاب فوق به تحلیل جهش آدمی به درو...

this work is presented in five parts. in the first part preparation of the starting complex [pt(c^n)cl(dmso)], 1, in which c^n = n(1),c(2?)-chelated, deprotonated 2-phenylpyridine, and dmso = dimethylsulfoxide, and its reaction with 1 equiv of the biphosphine ligands bis(diphenylphosphino)amine, dppa, or bis(diphenylphosphino)methane, dppm, to give the complex [pt(c^n)cl(dppa)], 2, or [pt(c^n)c...