منابع مشابه
Subset-lex: did we miss an order?
We generalize a well-known algorithm for the generation of all subsets of a set in lexicographic order with respect to the sets as lists of elements (subset-lex order). We obtain algorithms for various combinatorial objects such as the subsets of a multiset, compositions and partitions represented as lists of parts, and for certain restricted growth strings. The algorithms are often loopless an...
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Clearly, there is a plethora of database issues that are relevant to the Web. Examples include data visualization, scalability of data servers, caching and replication, data heterogeneity and intergration, query languages, etc. An important question, however, is whether the Web environment brings anything fundamentally new to these areas. Beside the database community, Web-related issues concer...
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Always-on media spaces broadcast video between collaborators to provide mutual awareness and to encourage casual interaction. This video can be easily recorded on the fly as a video trace. Ostensibly, people can review this video history to gain a better idea of the activities and availability of their collaborators. Such systems are obviously highly contentious, as they raise significant priva...
متن کاملSialyl-Tn in Cancer: (How) Did We Miss the Target?
Sialyl-Tn antigen (STn) is a short O-glycan containing a sialic acid residue a2,6-linked to GalNAca-O-Ser/Thr. The biosynthesis of STn is mediated by a specific sialyltransferase termed ST6GalNAc I, which competes with O-glycans elongating glycosyltransferases and prevents cancer cells from exhibiting longer O-glycans. While weakly expressed by fetal and normal adult tissues, STn is expressed b...
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Combined pituitary hormone deficiency (CPHD) is a rare disorder resulting from impaired production of several pituitary hormones. This report describes the 30-year history of a patient who has apparently lived without a pituitary. The patient, born in 1976, experienced recurrent episodes of hypoglycaemia (as low as 2.9 mg/dl) in early childhood and showed elevated liver enzymes up to the age of...
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ژورنال
عنوان ژورنال: Journal of the Royal Society of Medicine
سال: 2001
ISSN: 0141-0768,1758-1095
DOI: 10.1177/014107680109400216