منابع مشابه
Catabolic disorders of complex carbohydrates.
The various disorders caused by heritable defects in complex carbohydrate catabolism comprise two groups: (A) The mucopolysaccharidoses, six main and several subtypes are described. (B) The mucolipidoses (oligosaccharidoses), at least nine types being recognized. Whilst most of these are now well defined by clinical and biochemical studies, much of the sequence of events from the intrinsic meta...
متن کاملOn the nomenclature of complex carbohydrates.
Some histochemists still distinguish between “neutral and acid mucopolysaccharides” based on reactions such as the periodic acid-Schiff (PAS) and Alcian blue staining. In the same way terms such as “neutral and acid glycoconjugates” are used. Apart from the fact that the so-called acid mucopolysaccharides can also give a positive PAS-reaction, this classification does not reflect the real natur...
متن کاملA Path to Complex Carbohydrates CHEMISTRY
G lycans are carbohydrate-containing compounds that include oligosaccharides as well as the carbohydrate parts of glycoproteins or glycolipids. All cells contain glycans, ranging from those that benefi t from the development, metabolism, and immune responses of the host to those involved in cancer metastasis or hostpathogen interactions ( 1). The oligosaccharide sequence of a glycan determines ...
متن کاملUpdating Complex Value Databases
Abst ract Query languages and their optimizations have been a very important issue in the database community. Languages for updating databases, however, have not been studied to the same extent, although they are clearly important since databases must change over time. The structure and expressiveness of updates is largely dependent on the data model. In relational databases, for example, the u...
متن کاملComplex Values in Databases
Shortcomings of the relational data model have led to two different approaches for supporting complex values: the object oriented approach, in which they are modeled as a unit and represented as such in the database, and the semantic approach, in which complex values are derived from a simple conceptual structure. This paper contains an overview of the pros and cons of both approaches. An analy...
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ژورنال
عنوان ژورنال: Trends in Food Science & Technology
سال: 1993
ISSN: 0924-2244
DOI: 10.1016/0924-2244(93)90188-g