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Updated: Aug 17, 2026

Study of Cell Migration in Microfabricated Channels
Published on: February 21, 2014
[Definitive migration to France and family constitution]
Abstract:
Data from a survey of 383 individuals, either aliens or naturalized citizens, aged 45-69 residing in France in 1981 are used to examine the relationship between migration and the family life cycle. The results indicate that "marriage, which is an obstacle to migration for women born before 1915, actually favours migration in later generations. Furthermore, the [fertility] of naturalized citizens (2.64 children per woman) is shown to be markedly lower than that of foreigners (3.67) and approaches the national level of that period (2.60) in a few years only." (SUMMARY IN ENG AND SPA)
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In general, in a nucleophilic substitution reaction, a nucleophile displaces a functional group, called the leaving group, from the substrate to give a substituted product. A leaving group departs the substrate molecule through heterolytic cleavage, taking the pair of electrons with it to become a relatively stable weak base in the form of an anion or a neutral molecule.
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