Base, thème, radical
نویسندگان
چکیده
منابع مشابه
Spécialisation et sous-typage : thème et variations
Class specialization is the most original feature of object orientation, but identifying it to subtyping leads to the well known covariance-contravariance controversy. Type safety requires contravariance while specialization needs covariance. This paper aims to precisely analyse this problem, to show how irreductible it is and the need for type errors. We show that many alternatives as multiple...
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Poly methyl methacrylate (PMMA) is the most common material used in Prosthodontics. Several studies indicate a breakdown of the number of very high resin bases after 2 to 3 years to avoid breaking bass and several attempts have been made, such as altering the chemical structure of resin by adding causes cross linking or copolymerization. The innovative method for improving the physical properti...
متن کاملHydroxyl radical mediated DNA base modification by manmade mineral fibres.
Manmade mineral fibres (MMMFs) were examined for their ability to hydroxylate 2-deoxyguanosine (dG) to 8-hydroxydeoxyguanosine (8-OH-dG), a reaction that is mediated by hydroxyl radicals. It appeared that (1) catalase and the hydroxyl radical scavengers, dimethylsulphoxide and sodium benzoate, inhibited the hydroxylation, whereas Fe2+ and H2O2 potentiated it; (2) pretreatment of MMMFs with the ...
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We study the definability of certain subgroups of a group G that does not have the independence property. If a (type) definable subset X of an elementary extension G of G has property P , we call its trace X∩G over G an externally (type) definable P set. We show the following. Centralisers of subsets of G are externally definable subgroups. Cores of externally definable subgroups and iterated c...
متن کاملSequence-regulated vinyl copolymers with acid and base monomer units via atom transfer radical addition and alternating radical copolymerization†
Mainand side-chain sequence-regulated vinyl copolymers with acid and base monomer units were prepared using atom transfer radical addition (ATRA) and alternating radical copolymerization. A series of maleimide-ended sequence-regulated “oligomonomers” were prepared by ATRA of t-butyl acrylate (tBA: Ap) (i.e., a protected acrylic acid (A)) or an amine-functionalized acrylate, (2-(dimethylamino)et...
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ژورنال
عنوان ژورنال: Recherches linguistiques de Vincennes
سال: 2010
ISSN: 0986-6124,1958-9239
DOI: 10.4000/rlv.1850