Aptitude

Migratory aptitude roughly follows the ability of the group to stabilize positive charge ... 

The migration aptitude iacreases ia the foHowiag order secondary alkyl < primary alkyl < allyl, ben2yl. 

EAQF Evaluation Aptitude Qualite Fournisseurs (Evaluation of supplier quality capability)... 

Business systems engineering, Gregory H Watson (Wiley, 1994) Evaluation Aptitude Qualite Fournisseur... 

Examination of the migratory aptitude of groups in a variety of unsym-metrical ketones indicates that the group best able to accept a positive charge will usually migrate most readily. ... 

From the data eolleeted in Table VII, it follows that the migratory aptitude of the Si-, Ge-, and Sn-eentered groups in the rearrangement 40a 40b inereases from SiRj to SnRj groups. 

Eigg., abbrev. (liigenschaften) properties, eignen, v.t. suit, qualify appropriate. —v.t. be qualified, be suited, be adapted. — geeignet, p.a. suited, adapted, suitable, fit, proper. Eignung, /. qualification, adaptation suitability aptitude, eigtl., abbrev. of eigentlich. 

Joseph Black was born in Bordeaux, France, the fourth child of parents of Scottish extraction. His father was a native of Belfast engaged in the Bordeaux wine trade his mother was a daughter of an Aberdeen man who had settled in Bordeaux. In all. Black s parents had twelve children. At the age of twelve Black was sent to school in Belfast, and around 1744 proceeded to the University of Glasgow. Black followed the standard curriculum until pressed by his father to choose a profession. He opted for medicine. Black began to study anatomy and chemisti-y. William Cullen had recently inaugurated lectures in chemisti y that were to have a decisive influence on Black s career. Recognizing Black s aptitude, Cullen employed Black as his laboratory assistant. 

Joule had the means to devote his time to what became the passion of his life — obtaining highly accurate experimental results in physics, for which he displayed a precocious aptitude. His genius showed itself in his ability to devise new methods, whenever needed, to improve on the accuracy of his quantitative results. 

Stock was born in Danzig, Poland, and his aptitude for science was displayed early in his boyhood collections of salamanders, butterflies, and plants. He studied at the University of Berlin where the chemistry facilities of the day were so limited that this brilliant experimentalist-to-be had to wait till liis third semester to approach a laboratory bench. He received the Ph.D. at the University of Berlin in 1899, graduating magna cum laude. 

The reaction is facilitated when R is electron withdrawing, when R has a high migratory aptitude (ability to stabilize a carbonium ion), and by polar reaction media. 

The carbocations generated by non-Kolbe electrolysis can rearrange by alkyl, phenyl or oxygen migration. The migratory aptitudes of different alkyl groups have been studied in the rearrangement of a-hydroxy carboxylic acids (Eq. 34) [323]. 

Migratory aptitude vinyl > iso-propyl > cyclopropyl > benzyl... 

With unsymmetrical cyclic ketones, however, mixtures due to similar migratory aptitudes of the different groups are obtained (Table 13, Nos. 2, 3). The rearrangement has also been used as key step in a d,/-muscone synthesis (Table 13, No. 4). 

Psychometric tests such as personality or aptitude tests. 

In order to answer the question about inherent migratory aptitudes, the obvious type of substrate to use (in the pinacol rearrangement) is R RC—CRR since the... 

Migratory aptitudes have been measured for the phenyl and vinyl groups, and for... 

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