منابع مشابه
Lawmakers 'protected pharmacies'.
IZINDABA 218 Dispensing doctors breathed a sigh of relief on 11 March when the government's dogged legal insistence that they not dispense medicine within 5 km of any pharmacy was overruled on appeal to the Constitutional Court. The victory is all the more significant in that doctors setting up practices in future will also not be affected by the provision which the court declared null and void...
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Organizations have used social media extensively to engage customers, but little is known if such engagement truly influences organizations’ decisions to make them closer to their customers. This paper studies this question in a unique context – the impact of U.S. Representatives’ Twitter engagement on their voting behavior in The Congress. In particular, we consider whether the adoption and fr...
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The Newtonian divided-di¤erence operators generate the nil-Coxeter algebra and semigroup. A bijective correspondence between the nil-Coxeter semigroup and the symmetric group is used to provide braid-like diagrams for the former, and corresponding Reidemeister-type moves for the relations. Conditions are given for similar relations to hold in a skew group ring. Interesting extensions of the nil...
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We obtain a new recurrence formula for sequences of divided differences. In a particular case, the recurrence formula simplifies the classical Newton–Girard identities relating power sums and elementary symmetric polynomials.
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From (7) and (9) it is clear that the only essential information contained in Ei is the set of values i\u and the index rt. Note further that in (8), the successive Ei are used with increasing I and it follows from (9) that it is necessary to know ri before using the r¡n. On the other hand, in (6), the E¡ are used in decreasing sequence of / but from (7) it is not necessary to know rt until aft...
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ژورنال
عنوان ژورنال: BioScience
سال: 2015
ISSN: 1525-3244,0006-3568
DOI: 10.1093/biosci/biv094