Resources for R&D
نویسندگان
چکیده
منابع مشابه
RD-flatness and RD-injectivity
It is proved that every commutative ring whose RD-injective modules are Σ-RD-injective is the product of a pure semi-simple ring and a finite ring. A complete characterization of commutative rings for which each artinian (respectively simple) module is RD-injective, is given. These results can be obtained by using the properties of RD-flat modules and RD-coflat modules which are respectively th...
متن کاملEarly markers of retinal degeneration in rd/rd mice.
PURPOSE In the rd/rd mouse, the cell death of rod photoreceptors has been correlated to abnormal levels of the cyclic nucleotide cGMP within photoreceptors. Given that cGMP is required for opening of the cationic channels, there is the possibility that a high cGMP concentration would maintain these channels open, at a high energy cost for the retina. METHODS We investigated whether cation cha...
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ژورنال
عنوان ژورنال: Chemical & Engineering News Archive
سال: 1967
ISSN: 0009-2347,2157-4936
DOI: 10.1021/cen-v045n034.p005