منابع مشابه
Poliomyelitis (Heine-Medin disease).
Poliomyelitis (Heine-Medin disease) T he recent death of FC Robbins 1 , Nobel laureate and pioneer worker who cultivated the poliomyelitis virus, prompts this note. Poliomyelitis pre-dates recorded history. 2 Biblical descriptions of the lame and crippled lack sufficient detail for diagnosis. However, a funereal stele of the priest Ruma from the 19th Egyptian dynasty shows shortening and marked...
متن کاملJacob " Evolution and Tinkering " ( 1977 ) , by Francois Jacob
In his essay "Evolution and Tinkering," published in Science in 1977, François Jacob argues that a common analogy between the process of evolution [4] by natural selection [5] and the methods of engineering is problematic. Instead, he proposes to describe the process of evolution [4] with the concept of bricolage (tinkering). In this essay, Jacob does not deny the importance of the mechanism of...
متن کاملOn Higher Heine-stieltjes Polynomials
Take a linear ordinary differential operator d(z) = Pk i=1 Qi(z) d dzi with polynomial coefficients and set r = maxi=1,...,k(degQi(z) − i). If d(z) satisfies the conditions: i) r ≥ 0 and ii) degQk(z) = k + r we call it a nondegenerate higher Lamé operator. Following the classical examples of E. Heine and T. Stieltjes we initiated in [6] the study of the following multiparameter spectral problem...
متن کاملJacob Ross
How is what an agent ought to do related to what an agent ought to prefer that she does? More precisely, suppose we know what an agent’s preference ordering ought to be over the outcomes of performing the various courses of action open to her. Can we infer from this information how she ought to act, and if so, how can we infer it? One view (which, for convenience, I will call ‘actualism’) is th...
متن کاملPalladium-Catalyzed, Enantioselective Heine Reaction
Aziridines are important synthetic intermediates for the generation of nitrogen-containing molecules. N-Acylaziridines undergo rearrangement by ring expansion to produce oxazolines, a process known as the Heine reaction. The first catalytic, enantioselective Heine reaction is reported for meso-N-acylaziridines where a palladium(II)-diphosphine complex is employed. The highly enantioenriched oxa...
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ژورنال
عنوان ژورنال: Journal of Neurology
سال: 2017
ISSN: 0340-5354,1432-1459
DOI: 10.1007/s00415-017-8454-7